diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/test-drivers | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/test-drivers')
89 files changed, 31332 insertions, 0 deletions
diff --git a/drivers/media/test-drivers/Kconfig b/drivers/media/test-drivers/Kconfig new file mode 100644 index 000000000..51cf27834 --- /dev/null +++ b/drivers/media/test-drivers/Kconfig @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: GPL-2.0-only + +menuconfig V4L_TEST_DRIVERS + bool "V4L test drivers" + depends on VIDEO_DEV + +if V4L_TEST_DRIVERS + +config VIDEO_VIM2M + tristate "Virtual Memory-to-Memory Driver" + depends on VIDEO_DEV + select VIDEOBUF2_VMALLOC + select V4L2_MEM2MEM_DEV + select MEDIA_CONTROLLER + select MEDIA_CONTROLLER_REQUEST_API + help + This is a virtual test device for the memory-to-memory driver + framework. + +source "drivers/media/test-drivers/vicodec/Kconfig" +source "drivers/media/test-drivers/vimc/Kconfig" +source "drivers/media/test-drivers/vivid/Kconfig" + +endif #V4L_TEST_DRIVERS + +menuconfig DVB_TEST_DRIVERS + bool "DVB test drivers" + depends on DVB_CORE && MEDIA_SUPPORT && I2C + help + Enables DVB test drivers. + + This enables the DVB test drivers. They are meant as an aid for + DVB device driver writers and developers working on userspace + media applications. + +if DVB_TEST_DRIVERS + +source "drivers/media/test-drivers/vidtv/Kconfig" + +endif #DVB_TEST_DRIVERS diff --git a/drivers/media/test-drivers/Makefile b/drivers/media/test-drivers/Makefile new file mode 100644 index 000000000..ff390b687 --- /dev/null +++ b/drivers/media/test-drivers/Makefile @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the test drivers. +# + +# Please keep it alphabetically sorted by Kconfig name +# (e. g. LC_ALL=C sort Makefile) + +obj-$(CONFIG_DVB_VIDTV) += vidtv/ + +obj-$(CONFIG_VIDEO_VICODEC) += vicodec/ +obj-$(CONFIG_VIDEO_VIM2M) += vim2m.o +obj-$(CONFIG_VIDEO_VIMC) += vimc/ +obj-$(CONFIG_VIDEO_VIVID) += vivid/ diff --git a/drivers/media/test-drivers/vicodec/Kconfig b/drivers/media/test-drivers/vicodec/Kconfig new file mode 100644 index 000000000..a7a828eec --- /dev/null +++ b/drivers/media/test-drivers/vicodec/Kconfig @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIDEO_VICODEC + tristate "Virtual Codec Driver" + depends on VIDEO_DEV + select VIDEOBUF2_VMALLOC + select V4L2_MEM2MEM_DEV + select MEDIA_CONTROLLER + select MEDIA_CONTROLLER_REQUEST_API + help + Driver for a Virtual Codec + + This driver can be compared to the vim2m driver for emulating + a video device node that exposes an emulated hardware codec. + + When in doubt, say N. diff --git a/drivers/media/test-drivers/vicodec/Makefile b/drivers/media/test-drivers/vicodec/Makefile new file mode 100644 index 000000000..01bf7e930 --- /dev/null +++ b/drivers/media/test-drivers/vicodec/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 +vicodec-objs := vicodec-core.o codec-fwht.o codec-v4l2-fwht.o + +obj-$(CONFIG_VIDEO_VICODEC) += vicodec.o diff --git a/drivers/media/test-drivers/vicodec/codec-fwht.c b/drivers/media/test-drivers/vicodec/codec-fwht.c new file mode 100644 index 000000000..1ce682e1b --- /dev/null +++ b/drivers/media/test-drivers/vicodec/codec-fwht.c @@ -0,0 +1,959 @@ +// SPDX-License-Identifier: LGPL-2.1+ +/* + * Copyright 2016 Tom aan de Wiel + * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + * + * 8x8 Fast Walsh Hadamard Transform in sequency order based on the paper: + * + * A Recursive Algorithm for Sequency-Ordered Fast Walsh Transforms, + * R.D. Brown, 1977 + */ + +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include "codec-fwht.h" + +#define OVERFLOW_BIT BIT(14) + +/* + * Note: bit 0 of the header must always be 0. Otherwise it cannot + * be guaranteed that the magic 8 byte sequence (see below) can + * never occur in the rlc output. + */ +#define PFRAME_BIT BIT(15) +#define DUPS_MASK 0x1ffe + +#define PBLOCK 0 +#define IBLOCK 1 + +#define ALL_ZEROS 15 + +static const uint8_t zigzag[64] = { + 0, + 1, 8, + 2, 9, 16, + 3, 10, 17, 24, + 4, 11, 18, 25, 32, + 5, 12, 19, 26, 33, 40, + 6, 13, 20, 27, 34, 41, 48, + 7, 14, 21, 28, 35, 42, 49, 56, + 15, 22, 29, 36, 43, 50, 57, + 23, 30, 37, 44, 51, 58, + 31, 38, 45, 52, 59, + 39, 46, 53, 60, + 47, 54, 61, + 55, 62, + 63, +}; + +/* + * noinline_for_stack to work around + * https://bugs.llvm.org/show_bug.cgi?id=38809 + */ +static int noinline_for_stack +rlc(const s16 *in, __be16 *output, int blocktype) +{ + s16 block[8 * 8]; + s16 *wp = block; + int i = 0; + int x, y; + int ret = 0; + + /* read in block from framebuffer */ + int lastzero_run = 0; + int to_encode; + + for (y = 0; y < 8; y++) { + for (x = 0; x < 8; x++) { + *wp = in[x + y * 8]; + wp++; + } + } + + /* keep track of amount of trailing zeros */ + for (i = 63; i >= 0 && !block[zigzag[i]]; i--) + lastzero_run++; + + *output++ = (blocktype == PBLOCK ? htons(PFRAME_BIT) : 0); + ret++; + + to_encode = 8 * 8 - (lastzero_run > 14 ? lastzero_run : 0); + + i = 0; + while (i < to_encode) { + int cnt = 0; + int tmp; + + /* count leading zeros */ + while ((tmp = block[zigzag[i]]) == 0 && cnt < 14) { + cnt++; + i++; + if (i == to_encode) { + cnt--; + break; + } + } + /* 4 bits for run, 12 for coefficient (quantization by 4) */ + *output++ = htons((cnt | tmp << 4)); + i++; + ret++; + } + if (lastzero_run > 14) { + *output = htons(ALL_ZEROS | 0); + ret++; + } + + return ret; +} + +/* + * This function will worst-case increase rlc_in by 65*2 bytes: + * one s16 value for the header and 8 * 8 coefficients of type s16. + */ +static noinline_for_stack u16 +derlc(const __be16 **rlc_in, s16 *dwht_out, const __be16 *end_of_input) +{ + /* header */ + const __be16 *input = *rlc_in; + u16 stat; + int dec_count = 0; + s16 block[8 * 8 + 16]; + s16 *wp = block; + int i; + + if (input > end_of_input) + return OVERFLOW_BIT; + stat = ntohs(*input++); + + /* + * Now de-compress, it expands one byte to up to 15 bytes + * (or fills the remainder of the 64 bytes with zeroes if it + * is the last byte to expand). + * + * So block has to be 8 * 8 + 16 bytes, the '+ 16' is to + * allow for overflow if the incoming data was malformed. + */ + while (dec_count < 8 * 8) { + s16 in; + int length; + int coeff; + + if (input > end_of_input) + return OVERFLOW_BIT; + in = ntohs(*input++); + length = in & 0xf; + coeff = in >> 4; + + /* fill remainder with zeros */ + if (length == 15) { + for (i = 0; i < 64 - dec_count; i++) + *wp++ = 0; + break; + } + + for (i = 0; i < length; i++) + *wp++ = 0; + *wp++ = coeff; + dec_count += length + 1; + } + + wp = block; + + for (i = 0; i < 64; i++) { + int pos = zigzag[i]; + int y = pos / 8; + int x = pos % 8; + + dwht_out[x + y * 8] = *wp++; + } + *rlc_in = input; + return stat; +} + +static const int quant_table[] = { + 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 3, + 2, 2, 2, 2, 2, 2, 3, 6, + 2, 2, 2, 2, 2, 3, 6, 6, + 2, 2, 2, 2, 3, 6, 6, 6, + 2, 2, 2, 3, 6, 6, 6, 6, + 2, 2, 3, 6, 6, 6, 6, 8, +}; + +static const int quant_table_p[] = { + 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 6, + 3, 3, 3, 3, 3, 3, 6, 6, + 3, 3, 3, 3, 3, 6, 6, 9, + 3, 3, 3, 3, 6, 6, 9, 9, + 3, 3, 3, 6, 6, 9, 9, 10, +}; + +static void quantize_intra(s16 *coeff, s16 *de_coeff, u16 qp) +{ + const int *quant = quant_table; + int i, j; + + for (j = 0; j < 8; j++) { + for (i = 0; i < 8; i++, quant++, coeff++, de_coeff++) { + *coeff >>= *quant; + if (*coeff >= -qp && *coeff <= qp) + *coeff = *de_coeff = 0; + else + *de_coeff = *coeff << *quant; + } + } +} + +static void dequantize_intra(s16 *coeff) +{ + const int *quant = quant_table; + int i, j; + + for (j = 0; j < 8; j++) + for (i = 0; i < 8; i++, quant++, coeff++) + *coeff <<= *quant; +} + +static void quantize_inter(s16 *coeff, s16 *de_coeff, u16 qp) +{ + const int *quant = quant_table_p; + int i, j; + + for (j = 0; j < 8; j++) { + for (i = 0; i < 8; i++, quant++, coeff++, de_coeff++) { + *coeff >>= *quant; + if (*coeff >= -qp && *coeff <= qp) + *coeff = *de_coeff = 0; + else + *de_coeff = *coeff << *quant; + } + } +} + +static void dequantize_inter(s16 *coeff) +{ + const int *quant = quant_table_p; + int i, j; + + for (j = 0; j < 8; j++) + for (i = 0; i < 8; i++, quant++, coeff++) + *coeff <<= *quant; +} + +static void noinline_for_stack fwht(const u8 *block, s16 *output_block, + unsigned int stride, + unsigned int input_step, bool intra) +{ + /* we'll need more than 8 bits for the transformed coefficients */ + s32 workspace1[8], workspace2[8]; + const u8 *tmp = block; + s16 *out = output_block; + int add = intra ? 256 : 0; + unsigned int i; + + /* stage 1 */ + for (i = 0; i < 8; i++, tmp += stride, out += 8) { + switch (input_step) { + case 1: + workspace1[0] = tmp[0] + tmp[1] - add; + workspace1[1] = tmp[0] - tmp[1]; + + workspace1[2] = tmp[2] + tmp[3] - add; + workspace1[3] = tmp[2] - tmp[3]; + + workspace1[4] = tmp[4] + tmp[5] - add; + workspace1[5] = tmp[4] - tmp[5]; + + workspace1[6] = tmp[6] + tmp[7] - add; + workspace1[7] = tmp[6] - tmp[7]; + break; + case 2: + workspace1[0] = tmp[0] + tmp[2] - add; + workspace1[1] = tmp[0] - tmp[2]; + + workspace1[2] = tmp[4] + tmp[6] - add; + workspace1[3] = tmp[4] - tmp[6]; + + workspace1[4] = tmp[8] + tmp[10] - add; + workspace1[5] = tmp[8] - tmp[10]; + + workspace1[6] = tmp[12] + tmp[14] - add; + workspace1[7] = tmp[12] - tmp[14]; + break; + case 3: + workspace1[0] = tmp[0] + tmp[3] - add; + workspace1[1] = tmp[0] - tmp[3]; + + workspace1[2] = tmp[6] + tmp[9] - add; + workspace1[3] = tmp[6] - tmp[9]; + + workspace1[4] = tmp[12] + tmp[15] - add; + workspace1[5] = tmp[12] - tmp[15]; + + workspace1[6] = tmp[18] + tmp[21] - add; + workspace1[7] = tmp[18] - tmp[21]; + break; + default: + workspace1[0] = tmp[0] + tmp[4] - add; + workspace1[1] = tmp[0] - tmp[4]; + + workspace1[2] = tmp[8] + tmp[12] - add; + workspace1[3] = tmp[8] - tmp[12]; + + workspace1[4] = tmp[16] + tmp[20] - add; + workspace1[5] = tmp[16] - tmp[20]; + + workspace1[6] = tmp[24] + tmp[28] - add; + workspace1[7] = tmp[24] - tmp[28]; + break; + } + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + + /* stage 3 */ + out[0] = workspace2[0] + workspace2[4]; + out[1] = workspace2[0] - workspace2[4]; + out[2] = workspace2[1] - workspace2[5]; + out[3] = workspace2[1] + workspace2[5]; + out[4] = workspace2[2] + workspace2[6]; + out[5] = workspace2[2] - workspace2[6]; + out[6] = workspace2[3] - workspace2[7]; + out[7] = workspace2[3] + workspace2[7]; + } + + out = output_block; + + for (i = 0; i < 8; i++, out++) { + /* stage 1 */ + workspace1[0] = out[0] + out[1 * 8]; + workspace1[1] = out[0] - out[1 * 8]; + + workspace1[2] = out[2 * 8] + out[3 * 8]; + workspace1[3] = out[2 * 8] - out[3 * 8]; + + workspace1[4] = out[4 * 8] + out[5 * 8]; + workspace1[5] = out[4 * 8] - out[5 * 8]; + + workspace1[6] = out[6 * 8] + out[7 * 8]; + workspace1[7] = out[6 * 8] - out[7 * 8]; + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + /* stage 3 */ + out[0 * 8] = workspace2[0] + workspace2[4]; + out[1 * 8] = workspace2[0] - workspace2[4]; + out[2 * 8] = workspace2[1] - workspace2[5]; + out[3 * 8] = workspace2[1] + workspace2[5]; + out[4 * 8] = workspace2[2] + workspace2[6]; + out[5 * 8] = workspace2[2] - workspace2[6]; + out[6 * 8] = workspace2[3] - workspace2[7]; + out[7 * 8] = workspace2[3] + workspace2[7]; + } +} + +/* + * Not the nicest way of doing it, but P-blocks get twice the range of + * that of the I-blocks. Therefore we need a type bigger than 8 bits. + * Furthermore values can be negative... This is just a version that + * works with 16 signed data + */ +static void noinline_for_stack +fwht16(const s16 *block, s16 *output_block, int stride, int intra) +{ + /* we'll need more than 8 bits for the transformed coefficients */ + s32 workspace1[8], workspace2[8]; + const s16 *tmp = block; + s16 *out = output_block; + int i; + + for (i = 0; i < 8; i++, tmp += stride, out += 8) { + /* stage 1 */ + workspace1[0] = tmp[0] + tmp[1]; + workspace1[1] = tmp[0] - tmp[1]; + + workspace1[2] = tmp[2] + tmp[3]; + workspace1[3] = tmp[2] - tmp[3]; + + workspace1[4] = tmp[4] + tmp[5]; + workspace1[5] = tmp[4] - tmp[5]; + + workspace1[6] = tmp[6] + tmp[7]; + workspace1[7] = tmp[6] - tmp[7]; + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + + /* stage 3 */ + out[0] = workspace2[0] + workspace2[4]; + out[1] = workspace2[0] - workspace2[4]; + out[2] = workspace2[1] - workspace2[5]; + out[3] = workspace2[1] + workspace2[5]; + out[4] = workspace2[2] + workspace2[6]; + out[5] = workspace2[2] - workspace2[6]; + out[6] = workspace2[3] - workspace2[7]; + out[7] = workspace2[3] + workspace2[7]; + } + + out = output_block; + + for (i = 0; i < 8; i++, out++) { + /* stage 1 */ + workspace1[0] = out[0] + out[1*8]; + workspace1[1] = out[0] - out[1*8]; + + workspace1[2] = out[2*8] + out[3*8]; + workspace1[3] = out[2*8] - out[3*8]; + + workspace1[4] = out[4*8] + out[5*8]; + workspace1[5] = out[4*8] - out[5*8]; + + workspace1[6] = out[6*8] + out[7*8]; + workspace1[7] = out[6*8] - out[7*8]; + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + + /* stage 3 */ + out[0*8] = workspace2[0] + workspace2[4]; + out[1*8] = workspace2[0] - workspace2[4]; + out[2*8] = workspace2[1] - workspace2[5]; + out[3*8] = workspace2[1] + workspace2[5]; + out[4*8] = workspace2[2] + workspace2[6]; + out[5*8] = workspace2[2] - workspace2[6]; + out[6*8] = workspace2[3] - workspace2[7]; + out[7*8] = workspace2[3] + workspace2[7]; + } +} + +static noinline_for_stack void +ifwht(const s16 *block, s16 *output_block, int intra) +{ + /* + * we'll need more than 8 bits for the transformed coefficients + * use native unit of cpu + */ + int workspace1[8], workspace2[8]; + int inter = intra ? 0 : 1; + const s16 *tmp = block; + s16 *out = output_block; + int i; + + for (i = 0; i < 8; i++, tmp += 8, out += 8) { + /* stage 1 */ + workspace1[0] = tmp[0] + tmp[1]; + workspace1[1] = tmp[0] - tmp[1]; + + workspace1[2] = tmp[2] + tmp[3]; + workspace1[3] = tmp[2] - tmp[3]; + + workspace1[4] = tmp[4] + tmp[5]; + workspace1[5] = tmp[4] - tmp[5]; + + workspace1[6] = tmp[6] + tmp[7]; + workspace1[7] = tmp[6] - tmp[7]; + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + + /* stage 3 */ + out[0] = workspace2[0] + workspace2[4]; + out[1] = workspace2[0] - workspace2[4]; + out[2] = workspace2[1] - workspace2[5]; + out[3] = workspace2[1] + workspace2[5]; + out[4] = workspace2[2] + workspace2[6]; + out[5] = workspace2[2] - workspace2[6]; + out[6] = workspace2[3] - workspace2[7]; + out[7] = workspace2[3] + workspace2[7]; + } + + out = output_block; + + for (i = 0; i < 8; i++, out++) { + /* stage 1 */ + workspace1[0] = out[0] + out[1 * 8]; + workspace1[1] = out[0] - out[1 * 8]; + + workspace1[2] = out[2 * 8] + out[3 * 8]; + workspace1[3] = out[2 * 8] - out[3 * 8]; + + workspace1[4] = out[4 * 8] + out[5 * 8]; + workspace1[5] = out[4 * 8] - out[5 * 8]; + + workspace1[6] = out[6 * 8] + out[7 * 8]; + workspace1[7] = out[6 * 8] - out[7 * 8]; + + /* stage 2 */ + workspace2[0] = workspace1[0] + workspace1[2]; + workspace2[1] = workspace1[0] - workspace1[2]; + workspace2[2] = workspace1[1] - workspace1[3]; + workspace2[3] = workspace1[1] + workspace1[3]; + + workspace2[4] = workspace1[4] + workspace1[6]; + workspace2[5] = workspace1[4] - workspace1[6]; + workspace2[6] = workspace1[5] - workspace1[7]; + workspace2[7] = workspace1[5] + workspace1[7]; + + /* stage 3 */ + if (inter) { + int d; + + out[0 * 8] = workspace2[0] + workspace2[4]; + out[1 * 8] = workspace2[0] - workspace2[4]; + out[2 * 8] = workspace2[1] - workspace2[5]; + out[3 * 8] = workspace2[1] + workspace2[5]; + out[4 * 8] = workspace2[2] + workspace2[6]; + out[5 * 8] = workspace2[2] - workspace2[6]; + out[6 * 8] = workspace2[3] - workspace2[7]; + out[7 * 8] = workspace2[3] + workspace2[7]; + + for (d = 0; d < 8; d++) + out[8 * d] >>= 6; + } else { + int d; + + out[0 * 8] = workspace2[0] + workspace2[4]; + out[1 * 8] = workspace2[0] - workspace2[4]; + out[2 * 8] = workspace2[1] - workspace2[5]; + out[3 * 8] = workspace2[1] + workspace2[5]; + out[4 * 8] = workspace2[2] + workspace2[6]; + out[5 * 8] = workspace2[2] - workspace2[6]; + out[6 * 8] = workspace2[3] - workspace2[7]; + out[7 * 8] = workspace2[3] + workspace2[7]; + + for (d = 0; d < 8; d++) { + out[8 * d] >>= 6; + out[8 * d] += 128; + } + } + } +} + +static void fill_encoder_block(const u8 *input, s16 *dst, + unsigned int stride, unsigned int input_step) +{ + int i, j; + + for (i = 0; i < 8; i++) { + for (j = 0; j < 8; j++, input += input_step) + *dst++ = *input; + input += stride - 8 * input_step; + } +} + +static int var_intra(const s16 *input) +{ + int32_t mean = 0; + int32_t ret = 0; + const s16 *tmp = input; + int i; + + for (i = 0; i < 8 * 8; i++, tmp++) + mean += *tmp; + mean /= 64; + tmp = input; + for (i = 0; i < 8 * 8; i++, tmp++) + ret += (*tmp - mean) < 0 ? -(*tmp - mean) : (*tmp - mean); + return ret; +} + +static int var_inter(const s16 *old, const s16 *new) +{ + int32_t ret = 0; + int i; + + for (i = 0; i < 8 * 8; i++, old++, new++) + ret += (*old - *new) < 0 ? -(*old - *new) : (*old - *new); + return ret; +} + +static noinline_for_stack int +decide_blocktype(const u8 *cur, const u8 *reference, s16 *deltablock, + unsigned int stride, unsigned int input_step) +{ + s16 tmp[64]; + s16 old[64]; + s16 *work = tmp; + unsigned int k, l; + int vari; + int vard; + + fill_encoder_block(cur, tmp, stride, input_step); + fill_encoder_block(reference, old, 8, 1); + vari = var_intra(tmp); + + for (k = 0; k < 8; k++) { + for (l = 0; l < 8; l++) { + *deltablock = *work - *reference; + deltablock++; + work++; + reference++; + } + } + deltablock -= 64; + vard = var_inter(old, tmp); + return vari <= vard ? IBLOCK : PBLOCK; +} + +static void fill_decoder_block(u8 *dst, const s16 *input, int stride, + unsigned int dst_step) +{ + int i, j; + + for (i = 0; i < 8; i++) { + for (j = 0; j < 8; j++, input++, dst += dst_step) { + if (*input < 0) + *dst = 0; + else if (*input > 255) + *dst = 255; + else + *dst = *input; + } + dst += stride - (8 * dst_step); + } +} + +static void add_deltas(s16 *deltas, const u8 *ref, int stride, + unsigned int ref_step) +{ + int k, l; + + for (k = 0; k < 8; k++) { + for (l = 0; l < 8; l++) { + *deltas += *ref; + ref += ref_step; + /* + * Due to quantizing, it might possible that the + * decoded coefficients are slightly out of range + */ + if (*deltas < 0) + *deltas = 0; + else if (*deltas > 255) + *deltas = 255; + deltas++; + } + ref += stride - (8 * ref_step); + } +} + +static u32 encode_plane(u8 *input, u8 *refp, __be16 **rlco, __be16 *rlco_max, + struct fwht_cframe *cf, u32 height, u32 width, + u32 stride, unsigned int input_step, + bool is_intra, bool next_is_intra) +{ + u8 *input_start = input; + __be16 *rlco_start = *rlco; + s16 deltablock[64]; + __be16 pframe_bit = htons(PFRAME_BIT); + u32 encoding = 0; + unsigned int last_size = 0; + unsigned int i, j; + + width = round_up(width, 8); + height = round_up(height, 8); + + for (j = 0; j < height / 8; j++) { + input = input_start + j * 8 * stride; + for (i = 0; i < width / 8; i++) { + /* intra code, first frame is always intra coded. */ + int blocktype = IBLOCK; + unsigned int size; + + if (!is_intra) + blocktype = decide_blocktype(input, refp, + deltablock, stride, input_step); + if (blocktype == IBLOCK) { + fwht(input, cf->coeffs, stride, input_step, 1); + quantize_intra(cf->coeffs, cf->de_coeffs, + cf->i_frame_qp); + } else { + /* inter code */ + encoding |= FWHT_FRAME_PCODED; + fwht16(deltablock, cf->coeffs, 8, 0); + quantize_inter(cf->coeffs, cf->de_coeffs, + cf->p_frame_qp); + } + if (!next_is_intra) { + ifwht(cf->de_coeffs, cf->de_fwht, blocktype); + + if (blocktype == PBLOCK) + add_deltas(cf->de_fwht, refp, 8, 1); + fill_decoder_block(refp, cf->de_fwht, 8, 1); + } + + input += 8 * input_step; + refp += 8 * 8; + + size = rlc(cf->coeffs, *rlco, blocktype); + if (last_size == size && + !memcmp(*rlco + 1, *rlco - size + 1, 2 * size - 2)) { + __be16 *last_rlco = *rlco - size; + s16 hdr = ntohs(*last_rlco); + + if (!((*last_rlco ^ **rlco) & pframe_bit) && + (hdr & DUPS_MASK) < DUPS_MASK) + *last_rlco = htons(hdr + 2); + else + *rlco += size; + } else { + *rlco += size; + } + if (*rlco >= rlco_max) { + encoding |= FWHT_FRAME_UNENCODED; + goto exit_loop; + } + last_size = size; + } + } + +exit_loop: + if (encoding & FWHT_FRAME_UNENCODED) { + u8 *out = (u8 *)rlco_start; + u8 *p; + + input = input_start; + /* + * The compressed stream should never contain the magic + * header, so when we copy the YUV data we replace 0xff + * by 0xfe. Since YUV is limited range such values + * shouldn't appear anyway. + */ + for (j = 0; j < height; j++) { + for (i = 0, p = input; i < width; i++, p += input_step) + *out++ = (*p == 0xff) ? 0xfe : *p; + input += stride; + } + *rlco = (__be16 *)out; + encoding &= ~FWHT_FRAME_PCODED; + } + return encoding; +} + +u32 fwht_encode_frame(struct fwht_raw_frame *frm, + struct fwht_raw_frame *ref_frm, + struct fwht_cframe *cf, + bool is_intra, bool next_is_intra, + unsigned int width, unsigned int height, + unsigned int stride, unsigned int chroma_stride) +{ + unsigned int size = height * width; + __be16 *rlco = cf->rlc_data; + __be16 *rlco_max; + u32 encoding; + + rlco_max = rlco + size / 2 - 256; + encoding = encode_plane(frm->luma, ref_frm->luma, &rlco, rlco_max, cf, + height, width, stride, + frm->luma_alpha_step, is_intra, next_is_intra); + if (encoding & FWHT_FRAME_UNENCODED) + encoding |= FWHT_LUMA_UNENCODED; + encoding &= ~FWHT_FRAME_UNENCODED; + + if (frm->components_num >= 3) { + u32 chroma_h = height / frm->height_div; + u32 chroma_w = width / frm->width_div; + unsigned int chroma_size = chroma_h * chroma_w; + + rlco_max = rlco + chroma_size / 2 - 256; + encoding |= encode_plane(frm->cb, ref_frm->cb, &rlco, rlco_max, + cf, chroma_h, chroma_w, + chroma_stride, frm->chroma_step, + is_intra, next_is_intra); + if (encoding & FWHT_FRAME_UNENCODED) + encoding |= FWHT_CB_UNENCODED; + encoding &= ~FWHT_FRAME_UNENCODED; + rlco_max = rlco + chroma_size / 2 - 256; + encoding |= encode_plane(frm->cr, ref_frm->cr, &rlco, rlco_max, + cf, chroma_h, chroma_w, + chroma_stride, frm->chroma_step, + is_intra, next_is_intra); + if (encoding & FWHT_FRAME_UNENCODED) + encoding |= FWHT_CR_UNENCODED; + encoding &= ~FWHT_FRAME_UNENCODED; + } + + if (frm->components_num == 4) { + rlco_max = rlco + size / 2 - 256; + encoding |= encode_plane(frm->alpha, ref_frm->alpha, &rlco, + rlco_max, cf, height, width, + stride, frm->luma_alpha_step, + is_intra, next_is_intra); + if (encoding & FWHT_FRAME_UNENCODED) + encoding |= FWHT_ALPHA_UNENCODED; + encoding &= ~FWHT_FRAME_UNENCODED; + } + + cf->size = (rlco - cf->rlc_data) * sizeof(*rlco); + return encoding; +} + +static bool decode_plane(struct fwht_cframe *cf, const __be16 **rlco, + u32 height, u32 width, const u8 *ref, u32 ref_stride, + unsigned int ref_step, u8 *dst, + unsigned int dst_stride, unsigned int dst_step, + bool uncompressed, const __be16 *end_of_rlco_buf) +{ + unsigned int copies = 0; + s16 copy[8 * 8]; + u16 stat; + unsigned int i, j; + bool is_intra = !ref; + + width = round_up(width, 8); + height = round_up(height, 8); + + if (uncompressed) { + int i; + + if (end_of_rlco_buf + 1 < *rlco + width * height / 2) + return false; + for (i = 0; i < height; i++) { + memcpy(dst, *rlco, width); + dst += dst_stride; + *rlco += width / 2; + } + return true; + } + + /* + * When decoding each macroblock the rlco pointer will be increased + * by 65 * 2 bytes worst-case. + * To avoid overflow the buffer has to be 65/64th of the actual raw + * image size, just in case someone feeds it malicious data. + */ + for (j = 0; j < height / 8; j++) { + for (i = 0; i < width / 8; i++) { + const u8 *refp = ref + j * 8 * ref_stride + + i * 8 * ref_step; + u8 *dstp = dst + j * 8 * dst_stride + i * 8 * dst_step; + + if (copies) { + memcpy(cf->de_fwht, copy, sizeof(copy)); + if ((stat & PFRAME_BIT) && !is_intra) + add_deltas(cf->de_fwht, refp, + ref_stride, ref_step); + fill_decoder_block(dstp, cf->de_fwht, + dst_stride, dst_step); + copies--; + continue; + } + + stat = derlc(rlco, cf->coeffs, end_of_rlco_buf); + if (stat & OVERFLOW_BIT) + return false; + if ((stat & PFRAME_BIT) && !is_intra) + dequantize_inter(cf->coeffs); + else + dequantize_intra(cf->coeffs); + + ifwht(cf->coeffs, cf->de_fwht, + ((stat & PFRAME_BIT) && !is_intra) ? 0 : 1); + + copies = (stat & DUPS_MASK) >> 1; + if (copies) + memcpy(copy, cf->de_fwht, sizeof(copy)); + if ((stat & PFRAME_BIT) && !is_intra) + add_deltas(cf->de_fwht, refp, + ref_stride, ref_step); + fill_decoder_block(dstp, cf->de_fwht, dst_stride, + dst_step); + } + } + return true; +} + +bool fwht_decode_frame(struct fwht_cframe *cf, u32 hdr_flags, + unsigned int components_num, unsigned int width, + unsigned int height, const struct fwht_raw_frame *ref, + unsigned int ref_stride, unsigned int ref_chroma_stride, + struct fwht_raw_frame *dst, unsigned int dst_stride, + unsigned int dst_chroma_stride) +{ + const __be16 *rlco = cf->rlc_data; + const __be16 *end_of_rlco_buf = cf->rlc_data + + (cf->size / sizeof(*rlco)) - 1; + + if (!decode_plane(cf, &rlco, height, width, ref->luma, ref_stride, + ref->luma_alpha_step, dst->luma, dst_stride, + dst->luma_alpha_step, + hdr_flags & V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED, + end_of_rlco_buf)) + return false; + + if (components_num >= 3) { + u32 h = height; + u32 w = width; + + if (!(hdr_flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT)) + h /= 2; + if (!(hdr_flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH)) + w /= 2; + + if (!decode_plane(cf, &rlco, h, w, ref->cb, ref_chroma_stride, + ref->chroma_step, dst->cb, dst_chroma_stride, + dst->chroma_step, + hdr_flags & V4L2_FWHT_FL_CB_IS_UNCOMPRESSED, + end_of_rlco_buf)) + return false; + if (!decode_plane(cf, &rlco, h, w, ref->cr, ref_chroma_stride, + ref->chroma_step, dst->cr, dst_chroma_stride, + dst->chroma_step, + hdr_flags & V4L2_FWHT_FL_CR_IS_UNCOMPRESSED, + end_of_rlco_buf)) + return false; + } + + if (components_num == 4) + if (!decode_plane(cf, &rlco, height, width, ref->alpha, ref_stride, + ref->luma_alpha_step, dst->alpha, dst_stride, + dst->luma_alpha_step, + hdr_flags & V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED, + end_of_rlco_buf)) + return false; + return true; +} diff --git a/drivers/media/test-drivers/vicodec/codec-fwht.h b/drivers/media/test-drivers/vicodec/codec-fwht.h new file mode 100644 index 000000000..0eab24020 --- /dev/null +++ b/drivers/media/test-drivers/vicodec/codec-fwht.h @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/* + * Copyright 2016 Tom aan de Wiel + * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef CODEC_FWHT_H +#define CODEC_FWHT_H + +#include <linux/types.h> +#include <linux/bitops.h> +#include <asm/byteorder.h> + +/* + * The compressed format consists of a fwht_cframe_hdr struct followed by the + * compressed frame data. The header contains the size of that data. + * Each Y, Cb and Cr plane is compressed separately. If the compressed + * size of each plane becomes larger than the uncompressed size, then + * that plane is stored uncompressed and the corresponding bit is set + * in the flags field of the header. + * + * Each compressed plane consists of macroblocks and each macroblock + * is run-length-encoded. Each macroblock starts with a 16 bit value. + * Bit 15 indicates if this is a P-coded macroblock (1) or not (0). + * P-coded macroblocks contain a delta against the previous frame. + * + * Bits 1-12 contain a number. If non-zero, then this same macroblock + * repeats that number of times. This results in a high degree of + * compression for generated images like colorbars. + * + * Following this macroblock header the MB coefficients are run-length + * encoded: the top 12 bits contain the coefficient, the bottom 4 bits + * tell how many times this coefficient occurs. The value 0xf indicates + * that the remainder of the macroblock should be filled with zeroes. + * + * All 16 and 32 bit values are stored in big-endian (network) order. + * + * Each fwht_cframe_hdr starts with an 8 byte magic header that is + * guaranteed not to occur in the compressed frame data. This header + * can be used to sync to the next frame. + * + * This codec uses the Fast Walsh Hadamard Transform. Tom aan de Wiel + * developed this as part of a university project, specifically for use + * with this driver. His project report can be found here: + * + * https://hverkuil.home.xs4all.nl/fwht.pdf + */ + +/* + * This is a sequence of 8 bytes with the low 4 bits set to 0xf. + * + * This sequence cannot occur in the encoded data + * + * Note that these two magic values are symmetrical so endian issues here. + */ +#define FWHT_MAGIC1 0x4f4f4f4f +#define FWHT_MAGIC2 0xffffffff + +/* + * A macro to calculate the needed padding in order to make sure + * both luma and chroma components resolutions are rounded up to + * a multiple of 8 + */ +#define vic_round_dim(dim, div) (round_up((dim) / (div), 8) * (div)) + +struct fwht_cframe_hdr { + u32 magic1; + u32 magic2; + __be32 version; + __be32 width, height; + __be32 flags; + __be32 colorspace; + __be32 xfer_func; + __be32 ycbcr_enc; + __be32 quantization; + __be32 size; +}; + +struct fwht_cframe { + u16 i_frame_qp; + u16 p_frame_qp; + __be16 *rlc_data; + s16 coeffs[8 * 8]; + s16 de_coeffs[8 * 8]; + s16 de_fwht[8 * 8]; + u32 size; +}; + +struct fwht_raw_frame { + unsigned int width_div; + unsigned int height_div; + unsigned int luma_alpha_step; + unsigned int chroma_step; + unsigned int components_num; + u8 *buf; + u8 *luma, *cb, *cr, *alpha; +}; + +#define FWHT_FRAME_PCODED BIT(0) +#define FWHT_FRAME_UNENCODED BIT(1) +#define FWHT_LUMA_UNENCODED BIT(2) +#define FWHT_CB_UNENCODED BIT(3) +#define FWHT_CR_UNENCODED BIT(4) +#define FWHT_ALPHA_UNENCODED BIT(5) + +u32 fwht_encode_frame(struct fwht_raw_frame *frm, + struct fwht_raw_frame *ref_frm, + struct fwht_cframe *cf, + bool is_intra, bool next_is_intra, + unsigned int width, unsigned int height, + unsigned int stride, unsigned int chroma_stride); +bool fwht_decode_frame(struct fwht_cframe *cf, u32 hdr_flags, + unsigned int components_num, unsigned int width, + unsigned int height, const struct fwht_raw_frame *ref, + unsigned int ref_stride, unsigned int ref_chroma_stride, + struct fwht_raw_frame *dst, unsigned int dst_stride, + unsigned int dst_chroma_stride); +#endif diff --git a/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c new file mode 100644 index 000000000..0c83678fc --- /dev/null +++ b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c @@ -0,0 +1,367 @@ +// SPDX-License-Identifier: LGPL-2.1 +/* + * A V4L2 frontend for the FWHT codec + * + * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/videodev2.h> +#include "codec-v4l2-fwht.h" + +static const struct v4l2_fwht_pixfmt_info v4l2_fwht_pixfmts[] = { + { V4L2_PIX_FMT_YUV420, 1, 3, 2, 1, 1, 2, 2, 3, 3, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_YVU420, 1, 3, 2, 1, 1, 2, 2, 3, 3, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_YUV422P, 1, 2, 1, 1, 1, 2, 1, 3, 3, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV12, 1, 3, 2, 1, 2, 2, 2, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV21, 1, 3, 2, 1, 2, 2, 2, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV16, 1, 2, 1, 1, 2, 2, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV61, 1, 2, 1, 1, 2, 2, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV24, 1, 3, 1, 1, 2, 1, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_NV42, 1, 3, 1, 1, 2, 1, 1, 3, 2, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_YUYV, 2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_YVYU, 2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_UYVY, 2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_VYUY, 2, 2, 1, 2, 4, 2, 1, 3, 1, V4L2_FWHT_FL_PIXENC_YUV}, + { V4L2_PIX_FMT_BGR24, 3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_RGB24, 3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_HSV24, 3, 3, 1, 3, 3, 1, 1, 3, 1, V4L2_FWHT_FL_PIXENC_HSV}, + { V4L2_PIX_FMT_BGR32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_XBGR32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_ABGR32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_RGB32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_XRGB32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_ARGB32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_BGRX32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_BGRA32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_RGBX32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_RGBA32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_RGB}, + { V4L2_PIX_FMT_HSV32, 4, 4, 1, 4, 4, 1, 1, 4, 1, V4L2_FWHT_FL_PIXENC_HSV}, + { V4L2_PIX_FMT_GREY, 1, 1, 1, 1, 0, 1, 1, 1, 1, V4L2_FWHT_FL_PIXENC_RGB}, +}; + +bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info, + u32 width_div, u32 height_div, u32 components_num, + u32 pixenc) +{ + if (info->width_div == width_div && + info->height_div == height_div && + (!pixenc || info->pixenc == pixenc) && + info->components_num == components_num) + return true; + return false; +} + +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div, + u32 height_div, + u32 components_num, + u32 pixenc, + unsigned int start_idx) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(v4l2_fwht_pixfmts); i++) { + bool is_valid = v4l2_fwht_validate_fmt(&v4l2_fwht_pixfmts[i], + width_div, height_div, + components_num, pixenc); + if (is_valid) { + if (start_idx == 0) + return v4l2_fwht_pixfmts + i; + start_idx--; + } + } + return NULL; +} + +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(v4l2_fwht_pixfmts); i++) + if (v4l2_fwht_pixfmts[i].id == pixelformat) + return v4l2_fwht_pixfmts + i; + return NULL; +} + +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx) +{ + if (idx >= ARRAY_SIZE(v4l2_fwht_pixfmts)) + return NULL; + return v4l2_fwht_pixfmts + idx; +} + +static int prepare_raw_frame(struct fwht_raw_frame *rf, + const struct v4l2_fwht_pixfmt_info *info, u8 *buf, + unsigned int size) +{ + rf->luma = buf; + rf->width_div = info->width_div; + rf->height_div = info->height_div; + rf->luma_alpha_step = info->luma_alpha_step; + rf->chroma_step = info->chroma_step; + rf->alpha = NULL; + rf->components_num = info->components_num; + + /* + * The buffer is NULL if it is the reference + * frame of an I-frame in the stateless decoder + */ + if (!buf) { + rf->luma = NULL; + rf->cb = NULL; + rf->cr = NULL; + rf->alpha = NULL; + return 0; + } + switch (info->id) { + case V4L2_PIX_FMT_GREY: + rf->cb = NULL; + rf->cr = NULL; + break; + case V4L2_PIX_FMT_YUV420: + rf->cb = rf->luma + size; + rf->cr = rf->cb + size / 4; + break; + case V4L2_PIX_FMT_YVU420: + rf->cr = rf->luma + size; + rf->cb = rf->cr + size / 4; + break; + case V4L2_PIX_FMT_YUV422P: + rf->cb = rf->luma + size; + rf->cr = rf->cb + size / 2; + break; + case V4L2_PIX_FMT_NV12: + case V4L2_PIX_FMT_NV16: + case V4L2_PIX_FMT_NV24: + rf->cb = rf->luma + size; + rf->cr = rf->cb + 1; + break; + case V4L2_PIX_FMT_NV21: + case V4L2_PIX_FMT_NV61: + case V4L2_PIX_FMT_NV42: + rf->cr = rf->luma + size; + rf->cb = rf->cr + 1; + break; + case V4L2_PIX_FMT_YUYV: + rf->cb = rf->luma + 1; + rf->cr = rf->cb + 2; + break; + case V4L2_PIX_FMT_YVYU: + rf->cr = rf->luma + 1; + rf->cb = rf->cr + 2; + break; + case V4L2_PIX_FMT_UYVY: + rf->cb = rf->luma; + rf->cr = rf->cb + 2; + rf->luma++; + break; + case V4L2_PIX_FMT_VYUY: + rf->cr = rf->luma; + rf->cb = rf->cr + 2; + rf->luma++; + break; + case V4L2_PIX_FMT_RGB24: + case V4L2_PIX_FMT_HSV24: + rf->cr = rf->luma; + rf->cb = rf->cr + 2; + rf->luma++; + break; + case V4L2_PIX_FMT_BGR24: + rf->cb = rf->luma; + rf->cr = rf->cb + 2; + rf->luma++; + break; + case V4L2_PIX_FMT_RGB32: + case V4L2_PIX_FMT_XRGB32: + case V4L2_PIX_FMT_HSV32: + case V4L2_PIX_FMT_ARGB32: + rf->alpha = rf->luma; + rf->cr = rf->luma + 1; + rf->cb = rf->cr + 2; + rf->luma += 2; + break; + case V4L2_PIX_FMT_BGR32: + case V4L2_PIX_FMT_XBGR32: + case V4L2_PIX_FMT_ABGR32: + rf->cb = rf->luma; + rf->cr = rf->cb + 2; + rf->luma++; + rf->alpha = rf->cr + 1; + break; + case V4L2_PIX_FMT_BGRX32: + case V4L2_PIX_FMT_BGRA32: + rf->alpha = rf->luma; + rf->cb = rf->luma + 1; + rf->cr = rf->cb + 2; + rf->luma += 2; + break; + case V4L2_PIX_FMT_RGBX32: + case V4L2_PIX_FMT_RGBA32: + rf->alpha = rf->luma + 3; + rf->cr = rf->luma; + rf->cb = rf->cr + 2; + rf->luma++; + break; + default: + return -EINVAL; + } + return 0; +} + +int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out) +{ + unsigned int size = state->stride * state->coded_height; + unsigned int chroma_stride = state->stride; + const struct v4l2_fwht_pixfmt_info *info = state->info; + struct fwht_cframe_hdr *p_hdr; + struct fwht_cframe cf; + struct fwht_raw_frame rf; + u32 encoding; + u32 flags = 0; + + if (!info) + return -EINVAL; + + if (prepare_raw_frame(&rf, info, p_in, size)) + return -EINVAL; + + if (info->planes_num == 3) + chroma_stride /= 2; + + if (info->id == V4L2_PIX_FMT_NV24 || + info->id == V4L2_PIX_FMT_NV42) + chroma_stride *= 2; + + cf.i_frame_qp = state->i_frame_qp; + cf.p_frame_qp = state->p_frame_qp; + cf.rlc_data = (__be16 *)(p_out + sizeof(*p_hdr)); + + encoding = fwht_encode_frame(&rf, &state->ref_frame, &cf, + !state->gop_cnt, + state->gop_cnt == state->gop_size - 1, + state->visible_width, + state->visible_height, + state->stride, chroma_stride); + if (!(encoding & FWHT_FRAME_PCODED)) + state->gop_cnt = 0; + if (++state->gop_cnt >= state->gop_size) + state->gop_cnt = 0; + + p_hdr = (struct fwht_cframe_hdr *)p_out; + p_hdr->magic1 = FWHT_MAGIC1; + p_hdr->magic2 = FWHT_MAGIC2; + p_hdr->version = htonl(V4L2_FWHT_VERSION); + p_hdr->width = htonl(state->visible_width); + p_hdr->height = htonl(state->visible_height); + flags |= (info->components_num - 1) << V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET; + flags |= info->pixenc; + if (encoding & FWHT_LUMA_UNENCODED) + flags |= V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED; + if (encoding & FWHT_CB_UNENCODED) + flags |= V4L2_FWHT_FL_CB_IS_UNCOMPRESSED; + if (encoding & FWHT_CR_UNENCODED) + flags |= V4L2_FWHT_FL_CR_IS_UNCOMPRESSED; + if (encoding & FWHT_ALPHA_UNENCODED) + flags |= V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED; + if (!(encoding & FWHT_FRAME_PCODED)) + flags |= V4L2_FWHT_FL_I_FRAME; + if (rf.height_div == 1) + flags |= V4L2_FWHT_FL_CHROMA_FULL_HEIGHT; + if (rf.width_div == 1) + flags |= V4L2_FWHT_FL_CHROMA_FULL_WIDTH; + p_hdr->flags = htonl(flags); + p_hdr->colorspace = htonl(state->colorspace); + p_hdr->xfer_func = htonl(state->xfer_func); + p_hdr->ycbcr_enc = htonl(state->ycbcr_enc); + p_hdr->quantization = htonl(state->quantization); + p_hdr->size = htonl(cf.size); + return cf.size + sizeof(*p_hdr); +} + +int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out) +{ + u32 flags; + struct fwht_cframe cf; + unsigned int components_num = 3; + unsigned int version; + const struct v4l2_fwht_pixfmt_info *info; + unsigned int hdr_width_div, hdr_height_div; + struct fwht_raw_frame dst_rf; + unsigned int dst_chroma_stride = state->stride; + unsigned int ref_chroma_stride = state->ref_stride; + unsigned int dst_size = state->stride * state->coded_height; + unsigned int ref_size; + + if (!state->info) + return -EINVAL; + + info = state->info; + + version = ntohl(state->header.version); + if (!version || version > V4L2_FWHT_VERSION) { + pr_err("version %d is not supported, current version is %d\n", + version, V4L2_FWHT_VERSION); + return -EINVAL; + } + + if (state->header.magic1 != FWHT_MAGIC1 || + state->header.magic2 != FWHT_MAGIC2) + return -EINVAL; + + /* TODO: support resolution changes */ + if (ntohl(state->header.width) != state->visible_width || + ntohl(state->header.height) != state->visible_height) + return -EINVAL; + + flags = ntohl(state->header.flags); + + if (version >= 2) { + if ((flags & V4L2_FWHT_FL_PIXENC_MSK) != info->pixenc) + return -EINVAL; + components_num = 1 + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> + V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); + } + + if (components_num != info->components_num) + return -EINVAL; + + state->colorspace = ntohl(state->header.colorspace); + state->xfer_func = ntohl(state->header.xfer_func); + state->ycbcr_enc = ntohl(state->header.ycbcr_enc); + state->quantization = ntohl(state->header.quantization); + cf.rlc_data = (__be16 *)p_in; + cf.size = ntohl(state->header.size); + + hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; + hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; + if (hdr_width_div != info->width_div || + hdr_height_div != info->height_div) + return -EINVAL; + + if (prepare_raw_frame(&dst_rf, info, p_out, dst_size)) + return -EINVAL; + if (info->planes_num == 3) { + dst_chroma_stride /= 2; + ref_chroma_stride /= 2; + } + if (info->id == V4L2_PIX_FMT_NV24 || + info->id == V4L2_PIX_FMT_NV42) { + dst_chroma_stride *= 2; + ref_chroma_stride *= 2; + } + + + ref_size = state->ref_stride * state->coded_height; + + if (prepare_raw_frame(&state->ref_frame, info, state->ref_frame.buf, + ref_size)) + return -EINVAL; + + if (!fwht_decode_frame(&cf, flags, components_num, + state->visible_width, state->visible_height, + &state->ref_frame, state->ref_stride, ref_chroma_stride, + &dst_rf, state->stride, dst_chroma_stride)) + return -EINVAL; + return 0; +} diff --git a/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h new file mode 100644 index 000000000..1a0d2a9f9 --- /dev/null +++ b/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: LGPL-2.1 */ +/* + * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef CODEC_V4L2_FWHT_H +#define CODEC_V4L2_FWHT_H + +#include "codec-fwht.h" + +struct v4l2_fwht_pixfmt_info { + u32 id; + unsigned int bytesperline_mult; + unsigned int sizeimage_mult; + unsigned int sizeimage_div; + unsigned int luma_alpha_step; + unsigned int chroma_step; + /* Chroma plane subsampling */ + unsigned int width_div; + unsigned int height_div; + unsigned int components_num; + unsigned int planes_num; + unsigned int pixenc; +}; + +struct v4l2_fwht_state { + const struct v4l2_fwht_pixfmt_info *info; + unsigned int visible_width; + unsigned int visible_height; + unsigned int coded_width; + unsigned int coded_height; + unsigned int stride; + unsigned int ref_stride; + unsigned int gop_size; + unsigned int gop_cnt; + u16 i_frame_qp; + u16 p_frame_qp; + + enum v4l2_colorspace colorspace; + enum v4l2_ycbcr_encoding ycbcr_enc; + enum v4l2_xfer_func xfer_func; + enum v4l2_quantization quantization; + + struct fwht_raw_frame ref_frame; + struct fwht_cframe_hdr header; + u8 *compressed_frame; + u64 ref_frame_ts; +}; + +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat); +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx); +bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info, + u32 width_div, u32 height_div, u32 components_num, + u32 pixenc); +const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div, + u32 height_div, + u32 components_num, + u32 pixenc, + unsigned int start_idx); + +int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out); +int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out); + +#endif diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c new file mode 100644 index 000000000..1d1bee111 --- /dev/null +++ b/drivers/media/test-drivers/vicodec/vicodec-core.c @@ -0,0 +1,2233 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * A virtual codec example device. + * + * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + * + * This is a virtual codec device driver for testing the codec framework. + * It simulates a device that uses memory buffers for both source and + * destination and encodes or decodes the data. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/fs.h> +#include <linux/sched.h> +#include <linux/slab.h> + +#include <linux/platform_device.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-vmalloc.h> + +#include "codec-v4l2-fwht.h" + +MODULE_DESCRIPTION("Virtual codec device"); +MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); +MODULE_LICENSE("GPL v2"); + +static bool multiplanar; +module_param(multiplanar, bool, 0444); +MODULE_PARM_DESC(multiplanar, + " use multi-planar API instead of single-planar API"); + +static unsigned int debug; +module_param(debug, uint, 0644); +MODULE_PARM_DESC(debug, " activates debug info"); + +#define VICODEC_NAME "vicodec" +#define MAX_WIDTH 4096U +#define MIN_WIDTH 640U +#define MAX_HEIGHT 2160U +#define MIN_HEIGHT 360U + +#define dprintk(dev, fmt, arg...) \ + v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) + + +struct pixfmt_info { + u32 id; + unsigned int bytesperline_mult; + unsigned int sizeimage_mult; + unsigned int sizeimage_div; + unsigned int luma_step; + unsigned int chroma_step; + /* Chroma plane subsampling */ + unsigned int width_div; + unsigned int height_div; +}; + +static const struct v4l2_fwht_pixfmt_info pixfmt_fwht = { + V4L2_PIX_FMT_FWHT, 0, 3, 1, 1, 1, 1, 1, 0, 1 +}; + +static const struct v4l2_fwht_pixfmt_info pixfmt_stateless_fwht = { + V4L2_PIX_FMT_FWHT_STATELESS, 0, 3, 1, 1, 1, 1, 1, 0, 1 +}; + +static void vicodec_dev_release(struct device *dev) +{ +} + +static struct platform_device vicodec_pdev = { + .name = VICODEC_NAME, + .dev.release = vicodec_dev_release, +}; + +/* Per-queue, driver-specific private data */ +struct vicodec_q_data { + unsigned int coded_width; + unsigned int coded_height; + unsigned int visible_width; + unsigned int visible_height; + unsigned int sizeimage; + unsigned int vb2_sizeimage; + unsigned int sequence; + const struct v4l2_fwht_pixfmt_info *info; +}; + +enum { + V4L2_M2M_SRC = 0, + V4L2_M2M_DST = 1, +}; + +struct vicodec_dev_instance { + struct video_device vfd; + struct mutex mutex; + spinlock_t lock; + struct v4l2_m2m_dev *m2m_dev; +}; + +struct vicodec_dev { + struct v4l2_device v4l2_dev; + struct vicodec_dev_instance stateful_enc; + struct vicodec_dev_instance stateful_dec; + struct vicodec_dev_instance stateless_dec; +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device mdev; +#endif + +}; + +struct vicodec_ctx { + struct v4l2_fh fh; + struct vicodec_dev *dev; + bool is_enc; + bool is_stateless; + spinlock_t *lock; + + struct v4l2_ctrl_handler hdl; + + /* Source and destination queue data */ + struct vicodec_q_data q_data[2]; + struct v4l2_fwht_state state; + + u32 cur_buf_offset; + u32 comp_max_size; + u32 comp_size; + u32 header_size; + u32 comp_magic_cnt; + bool comp_has_frame; + bool comp_has_next_frame; + bool first_source_change_sent; + bool source_changed; +}; + +static const struct v4l2_event vicodec_eos_event = { + .type = V4L2_EVENT_EOS +}; + +static inline struct vicodec_ctx *file2ctx(struct file *file) +{ + return container_of(file->private_data, struct vicodec_ctx, fh); +} + +static struct vicodec_q_data *get_q_data(struct vicodec_ctx *ctx, + enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + return &ctx->q_data[V4L2_M2M_SRC]; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + return &ctx->q_data[V4L2_M2M_DST]; + default: + break; + } + return NULL; +} + +static void copy_cap_to_ref(const u8 *cap, const struct v4l2_fwht_pixfmt_info *info, + struct v4l2_fwht_state *state) +{ + int plane_idx; + u8 *p_ref = state->ref_frame.buf; + unsigned int cap_stride = state->stride; + unsigned int ref_stride = state->ref_stride; + + for (plane_idx = 0; plane_idx < info->planes_num; plane_idx++) { + int i; + unsigned int h_div = (plane_idx == 1 || plane_idx == 2) ? + info->height_div : 1; + const u8 *row_cap = cap; + u8 *row_ref = p_ref; + + if (info->planes_num == 3 && plane_idx == 1) { + cap_stride /= 2; + ref_stride /= 2; + } + + if (plane_idx == 1 && + (info->id == V4L2_PIX_FMT_NV24 || + info->id == V4L2_PIX_FMT_NV42)) { + cap_stride *= 2; + ref_stride *= 2; + } + + for (i = 0; i < state->visible_height / h_div; i++) { + memcpy(row_ref, row_cap, ref_stride); + row_ref += ref_stride; + row_cap += cap_stride; + } + cap += cap_stride * (state->coded_height / h_div); + p_ref += ref_stride * (state->coded_height / h_div); + } +} + +static bool validate_by_version(unsigned int flags, unsigned int version) +{ + if (!version || version > V4L2_FWHT_VERSION) + return false; + + if (version >= 2) { + unsigned int components_num = 1 + + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> + V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); + unsigned int pixenc = flags & V4L2_FWHT_FL_PIXENC_MSK; + + if (components_num == 0 || components_num > 4 || !pixenc) + return false; + } + return true; +} + +static bool validate_stateless_params_flags(const struct v4l2_ctrl_fwht_params *params, + const struct v4l2_fwht_pixfmt_info *cur_info) +{ + unsigned int width_div = + (params->flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; + unsigned int height_div = + (params->flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; + unsigned int components_num = 3; + unsigned int pixenc = 0; + + if (params->version < 3) + return false; + + components_num = 1 + ((params->flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> + V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); + pixenc = (params->flags & V4L2_FWHT_FL_PIXENC_MSK); + if (v4l2_fwht_validate_fmt(cur_info, width_div, height_div, + components_num, pixenc)) + return true; + return false; +} + + +static void update_state_from_header(struct vicodec_ctx *ctx) +{ + const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; + + ctx->state.visible_width = ntohl(p_hdr->width); + ctx->state.visible_height = ntohl(p_hdr->height); + ctx->state.colorspace = ntohl(p_hdr->colorspace); + ctx->state.xfer_func = ntohl(p_hdr->xfer_func); + ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); + ctx->state.quantization = ntohl(p_hdr->quantization); +} + +static int device_process(struct vicodec_ctx *ctx, + struct vb2_v4l2_buffer *src_vb, + struct vb2_v4l2_buffer *dst_vb) +{ + struct vicodec_dev *dev = ctx->dev; + struct v4l2_fwht_state *state = &ctx->state; + u8 *p_src, *p_dst; + int ret = 0; + + if (ctx->is_enc || ctx->is_stateless) + p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0); + else + p_src = state->compressed_frame; + + if (ctx->is_stateless) { + struct media_request *src_req = src_vb->vb2_buf.req_obj.req; + + ret = v4l2_ctrl_request_setup(src_req, &ctx->hdl); + if (ret) + return ret; + update_state_from_header(ctx); + + ctx->state.header.size = + htonl(vb2_get_plane_payload(&src_vb->vb2_buf, 0)); + /* + * set the reference buffer from the reference timestamp + * only if this is a P-frame + */ + if (!(ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME)) { + struct vb2_buffer *ref_vb2_buf; + struct vb2_queue *vq_cap = + v4l2_m2m_get_vq(ctx->fh.m2m_ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + ref_vb2_buf = vb2_find_buffer(vq_cap, ctx->state.ref_frame_ts); + if (!ref_vb2_buf) + return -EINVAL; + if (ref_vb2_buf->state == VB2_BUF_STATE_ERROR) + ret = -EINVAL; + ctx->state.ref_frame.buf = + vb2_plane_vaddr(ref_vb2_buf, 0); + } else { + ctx->state.ref_frame.buf = NULL; + } + } + p_dst = vb2_plane_vaddr(&dst_vb->vb2_buf, 0); + if (!p_src || !p_dst) { + v4l2_err(&dev->v4l2_dev, + "Acquiring kernel pointers to buffers failed\n"); + return -EFAULT; + } + + if (ctx->is_enc) { + struct vicodec_q_data *q_src; + int comp_sz_or_errcode; + + q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + state->info = q_src->info; + comp_sz_or_errcode = v4l2_fwht_encode(state, p_src, p_dst); + if (comp_sz_or_errcode < 0) + return comp_sz_or_errcode; + vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode); + } else { + struct vicodec_q_data *q_dst; + unsigned int comp_frame_size = ntohl(ctx->state.header.size); + + q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + if (comp_frame_size > ctx->comp_max_size) + return -EINVAL; + state->info = q_dst->info; + ret = v4l2_fwht_decode(state, p_src, p_dst); + if (ret < 0) + return ret; + if (!ctx->is_stateless) + copy_cap_to_ref(p_dst, ctx->state.info, &ctx->state); + + vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage); + if (ntohl(ctx->state.header.flags) & V4L2_FWHT_FL_I_FRAME) + dst_vb->flags |= V4L2_BUF_FLAG_KEYFRAME; + else + dst_vb->flags |= V4L2_BUF_FLAG_PFRAME; + } + return ret; +} + +/* + * mem2mem callbacks + */ +static enum vb2_buffer_state get_next_header(struct vicodec_ctx *ctx, + u8 **pp, u32 sz) +{ + static const u8 magic[] = { + 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff + }; + u8 *p = *pp; + u32 state; + u8 *header = (u8 *)&ctx->state.header; + + state = VB2_BUF_STATE_DONE; + + if (!ctx->header_size) { + state = VB2_BUF_STATE_ERROR; + for (; p < *pp + sz; p++) { + u32 copy; + + p = memchr(p, magic[ctx->comp_magic_cnt], + *pp + sz - p); + if (!p) { + ctx->comp_magic_cnt = 0; + p = *pp + sz; + break; + } + copy = sizeof(magic) - ctx->comp_magic_cnt; + if (*pp + sz - p < copy) + copy = *pp + sz - p; + + memcpy(header + ctx->comp_magic_cnt, p, copy); + ctx->comp_magic_cnt += copy; + if (!memcmp(header, magic, ctx->comp_magic_cnt)) { + p += copy; + state = VB2_BUF_STATE_DONE; + break; + } + ctx->comp_magic_cnt = 0; + } + if (ctx->comp_magic_cnt < sizeof(magic)) { + *pp = p; + return state; + } + ctx->header_size = sizeof(magic); + } + + if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { + u32 copy = sizeof(struct fwht_cframe_hdr) - ctx->header_size; + + if (*pp + sz - p < copy) + copy = *pp + sz - p; + + memcpy(header + ctx->header_size, p, copy); + p += copy; + ctx->header_size += copy; + } + *pp = p; + return state; +} + +/* device_run() - prepares and starts the device */ +static void device_run(void *priv) +{ + struct vicodec_ctx *ctx = priv; + struct vicodec_dev *dev = ctx->dev; + struct vb2_v4l2_buffer *src_buf, *dst_buf; + struct vicodec_q_data *q_src, *q_dst; + u32 state; + struct media_request *src_req; + + src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); + src_req = src_buf->vb2_buf.req_obj.req; + + q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + + state = VB2_BUF_STATE_DONE; + if (device_process(ctx, src_buf, dst_buf)) + state = VB2_BUF_STATE_ERROR; + else + dst_buf->sequence = q_dst->sequence++; + dst_buf->flags &= ~V4L2_BUF_FLAG_LAST; + v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, false); + + spin_lock(ctx->lock); + if (!ctx->comp_has_next_frame && + v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, src_buf)) { + dst_buf->flags |= V4L2_BUF_FLAG_LAST; + v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); + v4l2_m2m_mark_stopped(ctx->fh.m2m_ctx); + } + if (ctx->is_enc || ctx->is_stateless) { + src_buf->sequence = q_src->sequence++; + src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); + v4l2_m2m_buf_done(src_buf, state); + } else if (vb2_get_plane_payload(&src_buf->vb2_buf, 0) == ctx->cur_buf_offset) { + src_buf->sequence = q_src->sequence++; + src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); + v4l2_m2m_buf_done(src_buf, state); + ctx->cur_buf_offset = 0; + ctx->comp_has_next_frame = false; + } + v4l2_m2m_buf_done(dst_buf, state); + + ctx->comp_size = 0; + ctx->header_size = 0; + ctx->comp_magic_cnt = 0; + ctx->comp_has_frame = false; + spin_unlock(ctx->lock); + if (ctx->is_stateless && src_req) + v4l2_ctrl_request_complete(src_req, &ctx->hdl); + + if (ctx->is_enc) + v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx); + else if (ctx->is_stateless) + v4l2_m2m_job_finish(dev->stateless_dec.m2m_dev, + ctx->fh.m2m_ctx); + else + v4l2_m2m_job_finish(dev->stateful_dec.m2m_dev, ctx->fh.m2m_ctx); +} + +static void job_remove_src_buf(struct vicodec_ctx *ctx, u32 state) +{ + struct vb2_v4l2_buffer *src_buf; + struct vicodec_q_data *q_src; + + q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + spin_lock(ctx->lock); + src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); + src_buf->sequence = q_src->sequence++; + v4l2_m2m_buf_done(src_buf, state); + ctx->cur_buf_offset = 0; + spin_unlock(ctx->lock); +} + +static const struct v4l2_fwht_pixfmt_info * +info_from_header(const struct fwht_cframe_hdr *p_hdr) +{ + unsigned int flags = ntohl(p_hdr->flags); + unsigned int width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; + unsigned int height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; + unsigned int components_num = 3; + unsigned int pixenc = 0; + unsigned int version = ntohl(p_hdr->version); + + if (version >= 2) { + components_num = 1 + ((flags & V4L2_FWHT_FL_COMPONENTS_NUM_MSK) >> + V4L2_FWHT_FL_COMPONENTS_NUM_OFFSET); + pixenc = (flags & V4L2_FWHT_FL_PIXENC_MSK); + } + return v4l2_fwht_find_nth_fmt(width_div, height_div, + components_num, pixenc, 0); +} + +static bool is_header_valid(const struct fwht_cframe_hdr *p_hdr) +{ + const struct v4l2_fwht_pixfmt_info *info; + unsigned int w = ntohl(p_hdr->width); + unsigned int h = ntohl(p_hdr->height); + unsigned int version = ntohl(p_hdr->version); + unsigned int flags = ntohl(p_hdr->flags); + + if (w < MIN_WIDTH || w > MAX_WIDTH || h < MIN_HEIGHT || h > MAX_HEIGHT) + return false; + + if (!validate_by_version(flags, version)) + return false; + + info = info_from_header(p_hdr); + if (!info) + return false; + return true; +} + +static void update_capture_data_from_header(struct vicodec_ctx *ctx) +{ + struct vicodec_q_data *q_dst = get_q_data(ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; + const struct v4l2_fwht_pixfmt_info *info = info_from_header(p_hdr); + unsigned int flags = ntohl(p_hdr->flags); + unsigned int hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; + unsigned int hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; + + /* + * This function should not be used by a stateless codec since + * it changes values in q_data that are not request specific + */ + WARN_ON(ctx->is_stateless); + + q_dst->info = info; + q_dst->visible_width = ntohl(p_hdr->width); + q_dst->visible_height = ntohl(p_hdr->height); + q_dst->coded_width = vic_round_dim(q_dst->visible_width, hdr_width_div); + q_dst->coded_height = vic_round_dim(q_dst->visible_height, + hdr_height_div); + + q_dst->sizeimage = q_dst->coded_width * q_dst->coded_height * + q_dst->info->sizeimage_mult / q_dst->info->sizeimage_div; + ctx->state.colorspace = ntohl(p_hdr->colorspace); + + ctx->state.xfer_func = ntohl(p_hdr->xfer_func); + ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); + ctx->state.quantization = ntohl(p_hdr->quantization); +} + +static void set_last_buffer(struct vb2_v4l2_buffer *dst_buf, + const struct vb2_v4l2_buffer *src_buf, + struct vicodec_ctx *ctx) +{ + struct vicodec_q_data *q_dst = get_q_data(ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0); + dst_buf->sequence = q_dst->sequence++; + + v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, !ctx->is_enc); + dst_buf->flags |= V4L2_BUF_FLAG_LAST; + v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); +} + +static int job_ready(void *priv) +{ + static const u8 magic[] = { + 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff + }; + struct vicodec_ctx *ctx = priv; + struct vb2_v4l2_buffer *src_buf; + u8 *p_src; + u8 *p; + u32 sz; + u32 state; + struct vicodec_q_data *q_dst = get_q_data(ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + unsigned int flags; + unsigned int hdr_width_div; + unsigned int hdr_height_div; + unsigned int max_to_copy; + unsigned int comp_frame_size; + + if (ctx->source_changed) + return 0; + if (ctx->is_stateless || ctx->is_enc || ctx->comp_has_frame) + return 1; + +restart: + ctx->comp_has_next_frame = false; + src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + if (!src_buf) + return 0; + p_src = vb2_plane_vaddr(&src_buf->vb2_buf, 0); + sz = vb2_get_plane_payload(&src_buf->vb2_buf, 0); + p = p_src + ctx->cur_buf_offset; + + state = VB2_BUF_STATE_DONE; + + if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { + state = get_next_header(ctx, &p, p_src + sz - p); + if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { + if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, + src_buf)) + return 1; + job_remove_src_buf(ctx, state); + goto restart; + } + } + + comp_frame_size = ntohl(ctx->state.header.size); + + /* + * The current scanned frame might be the first frame of a new + * resolution so its size might be larger than ctx->comp_max_size. + * In that case it is copied up to the current buffer capacity and + * the copy will continue after allocating new large enough buffer + * when restreaming + */ + max_to_copy = min(comp_frame_size, ctx->comp_max_size); + + if (ctx->comp_size < max_to_copy) { + u32 copy = max_to_copy - ctx->comp_size; + + if (copy > p_src + sz - p) + copy = p_src + sz - p; + + memcpy(ctx->state.compressed_frame + ctx->comp_size, + p, copy); + p += copy; + ctx->comp_size += copy; + if (ctx->comp_size < max_to_copy) { + if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, + src_buf)) + return 1; + job_remove_src_buf(ctx, state); + goto restart; + } + } + ctx->cur_buf_offset = p - p_src; + if (ctx->comp_size == comp_frame_size) + ctx->comp_has_frame = true; + ctx->comp_has_next_frame = false; + if (ctx->comp_has_frame && sz - ctx->cur_buf_offset >= + sizeof(struct fwht_cframe_hdr)) { + struct fwht_cframe_hdr *p_hdr = (struct fwht_cframe_hdr *)p; + u32 frame_size = ntohl(p_hdr->size); + u32 remaining = sz - ctx->cur_buf_offset - sizeof(*p_hdr); + + if (!memcmp(p, magic, sizeof(magic))) + ctx->comp_has_next_frame = remaining >= frame_size; + } + /* + * if the header is invalid the device_run will just drop the frame + * with an error + */ + if (!is_header_valid(&ctx->state.header) && ctx->comp_has_frame) + return 1; + flags = ntohl(ctx->state.header.flags); + hdr_width_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; + hdr_height_div = (flags & V4L2_FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; + + if (ntohl(ctx->state.header.width) != q_dst->visible_width || + ntohl(ctx->state.header.height) != q_dst->visible_height || + !q_dst->info || + hdr_width_div != q_dst->info->width_div || + hdr_height_div != q_dst->info->height_div) { + static const struct v4l2_event rs_event = { + .type = V4L2_EVENT_SOURCE_CHANGE, + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, + }; + + struct vb2_v4l2_buffer *dst_buf = + v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); + + update_capture_data_from_header(ctx); + v4l2_event_queue_fh(&ctx->fh, &rs_event); + set_last_buffer(dst_buf, src_buf, ctx); + ctx->source_changed = true; + return 0; + } + return 1; +} + +/* + * video ioctls + */ + +static const struct v4l2_fwht_pixfmt_info *find_fmt(u32 fmt) +{ + const struct v4l2_fwht_pixfmt_info *info = + v4l2_fwht_find_pixfmt(fmt); + + if (!info) + info = v4l2_fwht_get_pixfmt(0); + return info; +} + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, VICODEC_NAME, sizeof(cap->driver)); + strscpy(cap->card, VICODEC_NAME, sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "platform:%s", VICODEC_NAME); + return 0; +} + +static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx, + bool is_out) +{ + bool is_uncomp = (ctx->is_enc && is_out) || (!ctx->is_enc && !is_out); + + if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar) + return -EINVAL; + if (!V4L2_TYPE_IS_MULTIPLANAR(f->type) && multiplanar) + return -EINVAL; + + if (is_uncomp) { + const struct v4l2_fwht_pixfmt_info *info = + get_q_data(ctx, f->type)->info; + + if (ctx->is_enc || + !vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q)) + info = v4l2_fwht_get_pixfmt(f->index); + else + info = v4l2_fwht_find_nth_fmt(info->width_div, + info->height_div, + info->components_num, + info->pixenc, + f->index); + if (!info) + return -EINVAL; + f->pixelformat = info->id; + } else { + if (f->index) + return -EINVAL; + f->pixelformat = ctx->is_stateless ? + V4L2_PIX_FMT_FWHT_STATELESS : V4L2_PIX_FMT_FWHT; + if (!ctx->is_enc && !ctx->is_stateless) + f->flags = V4L2_FMT_FLAG_DYN_RESOLUTION | + V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM; + } + return 0; +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vicodec_ctx *ctx = file2ctx(file); + + return enum_fmt(f, ctx, false); +} + +static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vicodec_ctx *ctx = file2ctx(file); + + return enum_fmt(f, ctx, true); +} + +static int vidioc_g_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) +{ + struct vb2_queue *vq; + struct vicodec_q_data *q_data; + struct v4l2_pix_format_mplane *pix_mp; + struct v4l2_pix_format *pix; + const struct v4l2_fwht_pixfmt_info *info; + + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + info = q_data->info; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (multiplanar) + return -EINVAL; + pix = &f->fmt.pix; + pix->width = q_data->coded_width; + pix->height = q_data->coded_height; + pix->field = V4L2_FIELD_NONE; + pix->pixelformat = info->id; + pix->bytesperline = q_data->coded_width * + info->bytesperline_mult; + pix->sizeimage = q_data->sizeimage; + pix->colorspace = ctx->state.colorspace; + pix->xfer_func = ctx->state.xfer_func; + pix->ycbcr_enc = ctx->state.ycbcr_enc; + pix->quantization = ctx->state.quantization; + break; + + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + if (!multiplanar) + return -EINVAL; + pix_mp = &f->fmt.pix_mp; + pix_mp->width = q_data->coded_width; + pix_mp->height = q_data->coded_height; + pix_mp->field = V4L2_FIELD_NONE; + pix_mp->pixelformat = info->id; + pix_mp->num_planes = 1; + pix_mp->plane_fmt[0].bytesperline = + q_data->coded_width * info->bytesperline_mult; + pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage; + pix_mp->colorspace = ctx->state.colorspace; + pix_mp->xfer_func = ctx->state.xfer_func; + pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; + pix_mp->quantization = ctx->state.quantization; + break; + default: + return -EINVAL; + } + return 0; +} + +static int vidioc_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(file2ctx(file), f); +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(file2ctx(file), f); +} + +static int vidioc_try_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pix_mp; + struct v4l2_pix_format *pix; + struct v4l2_plane_pix_format *plane; + const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? + &pixfmt_stateless_fwht : &pixfmt_fwht; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + pix = &f->fmt.pix; + if (pix->pixelformat != V4L2_PIX_FMT_FWHT && + pix->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) + info = find_fmt(pix->pixelformat); + + pix->width = clamp(pix->width, MIN_WIDTH, MAX_WIDTH); + pix->width = vic_round_dim(pix->width, info->width_div); + + pix->height = clamp(pix->height, MIN_HEIGHT, MAX_HEIGHT); + pix->height = vic_round_dim(pix->height, info->height_div); + + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = + pix->width * info->bytesperline_mult; + pix->sizeimage = pix->width * pix->height * + info->sizeimage_mult / info->sizeimage_div; + if (pix->pixelformat == V4L2_PIX_FMT_FWHT) + pix->sizeimage += sizeof(struct fwht_cframe_hdr); + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + pix_mp = &f->fmt.pix_mp; + plane = pix_mp->plane_fmt; + if (pix_mp->pixelformat != V4L2_PIX_FMT_FWHT && + pix_mp->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) + info = find_fmt(pix_mp->pixelformat); + pix_mp->num_planes = 1; + + pix_mp->width = clamp(pix_mp->width, MIN_WIDTH, MAX_WIDTH); + pix_mp->width = vic_round_dim(pix_mp->width, info->width_div); + + pix_mp->height = clamp(pix_mp->height, MIN_HEIGHT, MAX_HEIGHT); + pix_mp->height = vic_round_dim(pix_mp->height, + info->height_div); + + pix_mp->field = V4L2_FIELD_NONE; + plane->bytesperline = + pix_mp->width * info->bytesperline_mult; + plane->sizeimage = pix_mp->width * pix_mp->height * + info->sizeimage_mult / info->sizeimage_div; + if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) + plane->sizeimage += sizeof(struct fwht_cframe_hdr); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vicodec_ctx *ctx = file2ctx(file); + struct v4l2_pix_format_mplane *pix_mp; + struct v4l2_pix_format *pix; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (multiplanar) + return -EINVAL; + pix = &f->fmt.pix; + pix->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : + find_fmt(f->fmt.pix.pixelformat)->id; + pix->colorspace = ctx->state.colorspace; + pix->xfer_func = ctx->state.xfer_func; + pix->ycbcr_enc = ctx->state.ycbcr_enc; + pix->quantization = ctx->state.quantization; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + if (!multiplanar) + return -EINVAL; + pix_mp = &f->fmt.pix_mp; + pix_mp->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : + find_fmt(pix_mp->pixelformat)->id; + pix_mp->colorspace = ctx->state.colorspace; + pix_mp->xfer_func = ctx->state.xfer_func; + pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; + pix_mp->quantization = ctx->state.quantization; + break; + default: + return -EINVAL; + } + + return vidioc_try_fmt(ctx, f); +} + +static int vidioc_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vicodec_ctx *ctx = file2ctx(file); + struct v4l2_pix_format_mplane *pix_mp; + struct v4l2_pix_format *pix; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (multiplanar) + return -EINVAL; + pix = &f->fmt.pix; + if (ctx->is_enc) + pix->pixelformat = find_fmt(pix->pixelformat)->id; + else if (ctx->is_stateless) + pix->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; + else + pix->pixelformat = V4L2_PIX_FMT_FWHT; + if (!pix->colorspace) + pix->colorspace = V4L2_COLORSPACE_REC709; + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + if (!multiplanar) + return -EINVAL; + pix_mp = &f->fmt.pix_mp; + if (ctx->is_enc) + pix_mp->pixelformat = find_fmt(pix_mp->pixelformat)->id; + else if (ctx->is_stateless) + pix_mp->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; + else + pix_mp->pixelformat = V4L2_PIX_FMT_FWHT; + if (!pix_mp->colorspace) + pix_mp->colorspace = V4L2_COLORSPACE_REC709; + break; + default: + return -EINVAL; + } + + return vidioc_try_fmt(ctx, f); +} + +static int vidioc_s_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) +{ + struct vicodec_q_data *q_data; + struct vb2_queue *vq; + bool fmt_changed = true; + struct v4l2_pix_format_mplane *pix_mp; + struct v4l2_pix_format *pix; + + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + pix = &f->fmt.pix; + if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) + fmt_changed = + !q_data->info || + q_data->info->id != pix->pixelformat || + q_data->coded_width != pix->width || + q_data->coded_height != pix->height; + + if (vb2_is_busy(vq) && fmt_changed) + return -EBUSY; + + if (pix->pixelformat == V4L2_PIX_FMT_FWHT) + q_data->info = &pixfmt_fwht; + else if (pix->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) + q_data->info = &pixfmt_stateless_fwht; + else + q_data->info = find_fmt(pix->pixelformat); + q_data->coded_width = pix->width; + q_data->coded_height = pix->height; + q_data->sizeimage = pix->sizeimage; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + pix_mp = &f->fmt.pix_mp; + if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) + fmt_changed = + !q_data->info || + q_data->info->id != pix_mp->pixelformat || + q_data->coded_width != pix_mp->width || + q_data->coded_height != pix_mp->height; + + if (vb2_is_busy(vq) && fmt_changed) + return -EBUSY; + + if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) + q_data->info = &pixfmt_fwht; + else if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) + q_data->info = &pixfmt_stateless_fwht; + else + q_data->info = find_fmt(pix_mp->pixelformat); + q_data->coded_width = pix_mp->width; + q_data->coded_height = pix_mp->height; + q_data->sizeimage = pix_mp->plane_fmt[0].sizeimage; + break; + default: + return -EINVAL; + } + + dprintk(ctx->dev, + "Setting format for type %d, coded wxh: %dx%d, fourcc: 0x%08x\n", + f->type, q_data->coded_width, q_data->coded_height, + q_data->info->id); + + return 0; +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + + ret = vidioc_try_fmt_vid_cap(file, priv, f); + if (ret) + return ret; + + return vidioc_s_fmt(file2ctx(file), f); +} + +static int vidioc_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vicodec_ctx *ctx = file2ctx(file); + struct vicodec_q_data *q_data; + struct vicodec_q_data *q_data_cap; + struct v4l2_pix_format *pix; + struct v4l2_pix_format_mplane *pix_mp; + u32 coded_w = 0, coded_h = 0; + unsigned int size = 0; + int ret; + + q_data = get_q_data(ctx, f->type); + q_data_cap = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + + ret = vidioc_try_fmt_vid_out(file, priv, f); + if (ret) + return ret; + + if (ctx->is_enc) { + struct vb2_queue *vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); + struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? + &pixfmt_stateless_fwht : &pixfmt_fwht; + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { + coded_w = f->fmt.pix.width; + coded_h = f->fmt.pix.height; + } else { + coded_w = f->fmt.pix_mp.width; + coded_h = f->fmt.pix_mp.height; + } + if (vb2_is_busy(vq) && (coded_w != q_data->coded_width || + coded_h != q_data->coded_height)) + return -EBUSY; + size = coded_w * coded_h * + info->sizeimage_mult / info->sizeimage_div; + if (!ctx->is_stateless) + size += sizeof(struct fwht_cframe_hdr); + + if (vb2_is_busy(vq_cap) && size > q_data_cap->sizeimage) + return -EBUSY; + } + + ret = vidioc_s_fmt(file2ctx(file), f); + if (!ret) { + if (ctx->is_enc) { + q_data->visible_width = coded_w; + q_data->visible_height = coded_h; + q_data_cap->coded_width = coded_w; + q_data_cap->coded_height = coded_h; + q_data_cap->sizeimage = size; + } + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + pix = &f->fmt.pix; + ctx->state.colorspace = pix->colorspace; + ctx->state.xfer_func = pix->xfer_func; + ctx->state.ycbcr_enc = pix->ycbcr_enc; + ctx->state.quantization = pix->quantization; + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + pix_mp = &f->fmt.pix_mp; + ctx->state.colorspace = pix_mp->colorspace; + ctx->state.xfer_func = pix_mp->xfer_func; + ctx->state.ycbcr_enc = pix_mp->ycbcr_enc; + ctx->state.quantization = pix_mp->quantization; + break; + default: + break; + } + } + return ret; +} + +static int vidioc_g_selection(struct file *file, void *priv, + struct v4l2_selection *s) +{ + struct vicodec_ctx *ctx = file2ctx(file); + struct vicodec_q_data *q_data; + + q_data = get_q_data(ctx, s->type); + if (!q_data) + return -EINVAL; + /* + * encoder supports only cropping on the OUTPUT buffer + * decoder supports only composing on the CAPTURE buffer + */ + if (ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { + switch (s->target) { + case V4L2_SEL_TGT_CROP: + s->r.left = 0; + s->r.top = 0; + s->r.width = q_data->visible_width; + s->r.height = q_data->visible_height; + return 0; + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP_BOUNDS: + s->r.left = 0; + s->r.top = 0; + s->r.width = q_data->coded_width; + s->r.height = q_data->coded_height; + return 0; + } + } else if (!ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + switch (s->target) { + case V4L2_SEL_TGT_COMPOSE: + s->r.left = 0; + s->r.top = 0; + s->r.width = q_data->visible_width; + s->r.height = q_data->visible_height; + return 0; + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + s->r.left = 0; + s->r.top = 0; + s->r.width = q_data->coded_width; + s->r.height = q_data->coded_height; + return 0; + } + } + return -EINVAL; +} + +static int vidioc_s_selection(struct file *file, void *priv, + struct v4l2_selection *s) +{ + struct vicodec_ctx *ctx = file2ctx(file); + struct vicodec_q_data *q_data; + + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + q_data = get_q_data(ctx, s->type); + if (!q_data) + return -EINVAL; + + if (!ctx->is_enc || s->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + s->r.left = 0; + s->r.top = 0; + q_data->visible_width = clamp(s->r.width, MIN_WIDTH, + q_data->coded_width); + s->r.width = q_data->visible_width; + q_data->visible_height = clamp(s->r.height, MIN_HEIGHT, + q_data->coded_height); + s->r.height = q_data->visible_height; + return 0; +} + +static int vicodec_encoder_cmd(struct file *file, void *fh, + struct v4l2_encoder_cmd *ec) +{ + struct vicodec_ctx *ctx = file2ctx(file); + int ret; + + ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec); + if (ret < 0) + return ret; + + if (!vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q) || + !vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) + return 0; + + ret = v4l2_m2m_ioctl_encoder_cmd(file, fh, ec); + if (ret < 0) + return ret; + + if (ec->cmd == V4L2_ENC_CMD_STOP && + v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) + v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); + + if (ec->cmd == V4L2_ENC_CMD_START && + v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) + vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); + + return 0; +} + +static int vicodec_decoder_cmd(struct file *file, void *fh, + struct v4l2_decoder_cmd *dc) +{ + struct vicodec_ctx *ctx = file2ctx(file); + int ret; + + ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc); + if (ret < 0) + return ret; + + if (!vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q) || + !vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) + return 0; + + ret = v4l2_m2m_ioctl_decoder_cmd(file, fh, dc); + if (ret < 0) + return ret; + + if (dc->cmd == V4L2_DEC_CMD_STOP && + v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) + v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); + + if (dc->cmd == V4L2_DEC_CMD_START && + v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) + vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); + + return 0; +} + +static int vicodec_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + switch (fsize->pixel_format) { + case V4L2_PIX_FMT_FWHT_STATELESS: + break; + case V4L2_PIX_FMT_FWHT: + break; + default: + if (find_fmt(fsize->pixel_format)->id == fsize->pixel_format) + break; + return -EINVAL; + } + + if (fsize->index) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + + fsize->stepwise.min_width = MIN_WIDTH; + fsize->stepwise.max_width = MAX_WIDTH; + fsize->stepwise.step_width = 8; + fsize->stepwise.min_height = MIN_HEIGHT; + fsize->stepwise.max_height = MAX_HEIGHT; + fsize->stepwise.step_height = 8; + + return 0; +} + +static int vicodec_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + struct vicodec_ctx *ctx = container_of(fh, struct vicodec_ctx, fh); + + switch (sub->type) { + case V4L2_EVENT_SOURCE_CHANGE: + if (ctx->is_enc) + return -EINVAL; + fallthrough; + case V4L2_EVENT_EOS: + if (ctx->is_stateless) + return -EINVAL; + return v4l2_event_subscribe(fh, sub, 0, NULL); + default: + return v4l2_ctrl_subscribe_event(fh, sub); + } +} + +static const struct v4l2_ioctl_ops vicodec_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + + .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap, + + .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, + .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, + .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, + .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, + + .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out, + .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out, + .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out, + + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, + .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, + .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, + .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, + + .vidioc_streamon = v4l2_m2m_ioctl_streamon, + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, + + .vidioc_g_selection = vidioc_g_selection, + .vidioc_s_selection = vidioc_s_selection, + + .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, + .vidioc_encoder_cmd = vicodec_encoder_cmd, + .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, + .vidioc_decoder_cmd = vicodec_decoder_cmd, + .vidioc_enum_framesizes = vicodec_enum_framesizes, + + .vidioc_subscribe_event = vicodec_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + + +/* + * Queue operations + */ + +static int vicodec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vicodec_ctx *ctx = vb2_get_drv_priv(vq); + struct vicodec_q_data *q_data = get_q_data(ctx, vq->type); + unsigned int size = q_data->sizeimage; + + if (*nplanes) + return sizes[0] < size ? -EINVAL : 0; + + *nplanes = 1; + sizes[0] = size; + q_data->vb2_sizeimage = size; + return 0; +} + +static int vicodec_buf_out_validate(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + + vbuf->field = V4L2_FIELD_NONE; + return 0; +} + +static int vicodec_buf_prepare(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct vicodec_q_data *q_data; + + dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); + + q_data = get_q_data(ctx, vb->vb2_queue->type); + if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { + if (vbuf->field == V4L2_FIELD_ANY) + vbuf->field = V4L2_FIELD_NONE; + if (vbuf->field != V4L2_FIELD_NONE) { + dprintk(ctx->dev, "%s field isn't supported\n", + __func__); + return -EINVAL; + } + } + + if (vb2_plane_size(vb, 0) < q_data->vb2_sizeimage) { + dprintk(ctx->dev, + "%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), + (long)q_data->vb2_sizeimage); + return -EINVAL; + } + + return 0; +} + +static void vicodec_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + unsigned int sz = vb2_get_plane_payload(&vbuf->vb2_buf, 0); + u8 *p_src = vb2_plane_vaddr(&vbuf->vb2_buf, 0); + u8 *p = p_src; + struct vb2_queue *vq_out = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, + V4L2_BUF_TYPE_VIDEO_OUTPUT); + struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + bool header_valid = false; + static const struct v4l2_event rs_event = { + .type = V4L2_EVENT_SOURCE_CHANGE, + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, + }; + + if (V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type) && + vb2_is_streaming(vb->vb2_queue) && + v4l2_m2m_dst_buf_is_last(ctx->fh.m2m_ctx)) { + unsigned int i; + + for (i = 0; i < vb->num_planes; i++) + vb2_set_plane_payload(vb, i, 0); + + vbuf->field = V4L2_FIELD_NONE; + vbuf->sequence = + get_q_data(ctx, vb->vb2_queue->type)->sequence++; + + v4l2_m2m_last_buffer_done(ctx->fh.m2m_ctx, vbuf); + v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); + return; + } + + /* buf_queue handles only the first source change event */ + if (ctx->first_source_change_sent) { + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); + return; + } + + /* + * if both queues are streaming, the source change event is + * handled in job_ready + */ + if (vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out)) { + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); + return; + } + + /* + * source change event is relevant only for the stateful decoder + * in the compressed stream + */ + if (ctx->is_stateless || ctx->is_enc || + V4L2_TYPE_IS_CAPTURE(vb->vb2_queue->type)) { + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); + return; + } + + do { + enum vb2_buffer_state state = + get_next_header(ctx, &p, p_src + sz - p); + + if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { + v4l2_m2m_buf_done(vbuf, state); + return; + } + header_valid = is_header_valid(&ctx->state.header); + /* + * p points right after the end of the header in the + * buffer. If the header is invalid we set p to point + * to the next byte after the start of the header + */ + if (!header_valid) { + p = p - sizeof(struct fwht_cframe_hdr) + 1; + if (p < p_src) + p = p_src; + ctx->header_size = 0; + ctx->comp_magic_cnt = 0; + } + + } while (!header_valid); + + ctx->cur_buf_offset = p - p_src; + update_capture_data_from_header(ctx); + ctx->first_source_change_sent = true; + v4l2_event_queue_fh(&ctx->fh, &rs_event); + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); +} + +static void vicodec_return_bufs(struct vb2_queue *q, u32 state) +{ + struct vicodec_ctx *ctx = vb2_get_drv_priv(q); + struct vb2_v4l2_buffer *vbuf; + + for (;;) { + if (V4L2_TYPE_IS_OUTPUT(q->type)) + vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); + else + vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); + if (vbuf == NULL) + return; + v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, + &ctx->hdl); + spin_lock(ctx->lock); + v4l2_m2m_buf_done(vbuf, state); + spin_unlock(ctx->lock); + } +} + +static unsigned int total_frame_size(struct vicodec_q_data *q_data) +{ + unsigned int size; + unsigned int chroma_div; + + if (!q_data->info) { + WARN_ON(1); + return 0; + } + size = q_data->coded_width * q_data->coded_height; + chroma_div = q_data->info->width_div * q_data->info->height_div; + + if (q_data->info->components_num == 4) + return 2 * size + 2 * (size / chroma_div); + else if (q_data->info->components_num == 3) + return size + 2 * (size / chroma_div); + return size; +} + +static int vicodec_start_streaming(struct vb2_queue *q, + unsigned int count) +{ + struct vicodec_ctx *ctx = vb2_get_drv_priv(q); + struct vicodec_q_data *q_data = get_q_data(ctx, q->type); + struct v4l2_fwht_state *state = &ctx->state; + const struct v4l2_fwht_pixfmt_info *info = q_data->info; + unsigned int size = q_data->coded_width * q_data->coded_height; + unsigned int chroma_div; + unsigned int total_planes_size; + u8 *new_comp_frame = NULL; + + chroma_div = info->width_div * info->height_div; + q_data->sequence = 0; + + v4l2_m2m_update_start_streaming_state(ctx->fh.m2m_ctx, q); + + state->gop_cnt = 0; + + if ((V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || + (V4L2_TYPE_IS_CAPTURE(q->type) && ctx->is_enc)) + return 0; + + if (info->id == V4L2_PIX_FMT_FWHT || + info->id == V4L2_PIX_FMT_FWHT_STATELESS) { + vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); + return -EINVAL; + } + total_planes_size = total_frame_size(q_data); + ctx->comp_max_size = total_planes_size; + + state->visible_width = q_data->visible_width; + state->visible_height = q_data->visible_height; + state->coded_width = q_data->coded_width; + state->coded_height = q_data->coded_height; + state->stride = q_data->coded_width * + info->bytesperline_mult; + + if (ctx->is_stateless) { + state->ref_stride = state->stride; + return 0; + } + state->ref_stride = q_data->coded_width * info->luma_alpha_step; + + state->ref_frame.buf = kvmalloc(total_planes_size, GFP_KERNEL); + state->ref_frame.luma = state->ref_frame.buf; + new_comp_frame = kvmalloc(ctx->comp_max_size, GFP_KERNEL); + + if (!state->ref_frame.luma || !new_comp_frame) { + kvfree(state->ref_frame.luma); + kvfree(new_comp_frame); + vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); + return -ENOMEM; + } + /* + * if state->compressed_frame was already allocated then + * it contain data of the first frame of the new resolution + */ + if (state->compressed_frame) { + if (ctx->comp_size > ctx->comp_max_size) + ctx->comp_size = ctx->comp_max_size; + + memcpy(new_comp_frame, + state->compressed_frame, ctx->comp_size); + } + + kvfree(state->compressed_frame); + state->compressed_frame = new_comp_frame; + + if (info->components_num < 3) { + state->ref_frame.cb = NULL; + state->ref_frame.cr = NULL; + state->ref_frame.alpha = NULL; + return 0; + } + + state->ref_frame.cb = state->ref_frame.luma + size; + state->ref_frame.cr = state->ref_frame.cb + size / chroma_div; + + if (info->components_num == 4) + state->ref_frame.alpha = + state->ref_frame.cr + size / chroma_div; + else + state->ref_frame.alpha = NULL; + + return 0; +} + +static void vicodec_stop_streaming(struct vb2_queue *q) +{ + struct vicodec_ctx *ctx = vb2_get_drv_priv(q); + + vicodec_return_bufs(q, VB2_BUF_STATE_ERROR); + + v4l2_m2m_update_stop_streaming_state(ctx->fh.m2m_ctx, q); + + if (V4L2_TYPE_IS_OUTPUT(q->type) && + v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) + v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); + + if (!ctx->is_enc && V4L2_TYPE_IS_OUTPUT(q->type)) + ctx->first_source_change_sent = false; + + if ((!V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || + (V4L2_TYPE_IS_OUTPUT(q->type) && ctx->is_enc)) { + if (!ctx->is_stateless) + kvfree(ctx->state.ref_frame.buf); + ctx->state.ref_frame.buf = NULL; + ctx->state.ref_frame.luma = NULL; + ctx->comp_max_size = 0; + ctx->source_changed = false; + } + if (V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) { + ctx->cur_buf_offset = 0; + ctx->comp_size = 0; + ctx->header_size = 0; + ctx->comp_magic_cnt = 0; + ctx->comp_has_frame = false; + ctx->comp_has_next_frame = false; + } +} + +static void vicodec_buf_request_complete(struct vb2_buffer *vb) +{ + struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl); +} + + +static const struct vb2_ops vicodec_qops = { + .queue_setup = vicodec_queue_setup, + .buf_out_validate = vicodec_buf_out_validate, + .buf_prepare = vicodec_buf_prepare, + .buf_queue = vicodec_buf_queue, + .buf_request_complete = vicodec_buf_request_complete, + .start_streaming = vicodec_start_streaming, + .stop_streaming = vicodec_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct vicodec_ctx *ctx = priv; + int ret; + + src_vq->type = (multiplanar ? + V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : + V4L2_BUF_TYPE_VIDEO_OUTPUT); + src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + src_vq->drv_priv = ctx; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + src_vq->ops = &vicodec_qops; + src_vq->mem_ops = &vb2_vmalloc_memops; + src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + if (ctx->is_enc) + src_vq->lock = &ctx->dev->stateful_enc.mutex; + else if (ctx->is_stateless) + src_vq->lock = &ctx->dev->stateless_dec.mutex; + else + src_vq->lock = &ctx->dev->stateful_dec.mutex; + src_vq->supports_requests = ctx->is_stateless; + src_vq->requires_requests = ctx->is_stateless; + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + dst_vq->type = (multiplanar ? + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : + V4L2_BUF_TYPE_VIDEO_CAPTURE); + dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + dst_vq->drv_priv = ctx; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + dst_vq->ops = &vicodec_qops; + dst_vq->mem_ops = &vb2_vmalloc_memops; + dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + dst_vq->lock = src_vq->lock; + + return vb2_queue_init(dst_vq); +} + +static int vicodec_try_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vicodec_ctx *ctx = container_of(ctrl->handler, + struct vicodec_ctx, hdl); + const struct v4l2_ctrl_fwht_params *params; + struct vicodec_q_data *q_dst = get_q_data(ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + + switch (ctrl->id) { + case V4L2_CID_STATELESS_FWHT_PARAMS: + if (!q_dst->info) + return -EINVAL; + params = ctrl->p_new.p_fwht_params; + if (params->width > q_dst->coded_width || + params->width < MIN_WIDTH || + params->height > q_dst->coded_height || + params->height < MIN_HEIGHT) + return -EINVAL; + if (!validate_by_version(params->flags, params->version)) + return -EINVAL; + if (!validate_stateless_params_flags(params, q_dst->info)) + return -EINVAL; + return 0; + default: + return 0; + } + return 0; +} + +static void update_header_from_stateless_params(struct vicodec_ctx *ctx, + const struct v4l2_ctrl_fwht_params *params) +{ + struct fwht_cframe_hdr *p_hdr = &ctx->state.header; + + p_hdr->magic1 = FWHT_MAGIC1; + p_hdr->magic2 = FWHT_MAGIC2; + p_hdr->version = htonl(params->version); + p_hdr->width = htonl(params->width); + p_hdr->height = htonl(params->height); + p_hdr->flags = htonl(params->flags); + p_hdr->colorspace = htonl(params->colorspace); + p_hdr->xfer_func = htonl(params->xfer_func); + p_hdr->ycbcr_enc = htonl(params->ycbcr_enc); + p_hdr->quantization = htonl(params->quantization); +} + +static int vicodec_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vicodec_ctx *ctx = container_of(ctrl->handler, + struct vicodec_ctx, hdl); + const struct v4l2_ctrl_fwht_params *params; + + switch (ctrl->id) { + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: + ctx->state.gop_size = ctrl->val; + return 0; + case V4L2_CID_FWHT_I_FRAME_QP: + ctx->state.i_frame_qp = ctrl->val; + return 0; + case V4L2_CID_FWHT_P_FRAME_QP: + ctx->state.p_frame_qp = ctrl->val; + return 0; + case V4L2_CID_STATELESS_FWHT_PARAMS: + params = ctrl->p_new.p_fwht_params; + update_header_from_stateless_params(ctx, params); + ctx->state.ref_frame_ts = params->backward_ref_ts; + return 0; + } + return -EINVAL; +} + +static const struct v4l2_ctrl_ops vicodec_ctrl_ops = { + .s_ctrl = vicodec_s_ctrl, + .try_ctrl = vicodec_try_ctrl, +}; + +static const struct v4l2_ctrl_config vicodec_ctrl_stateless_state = { + .ops = &vicodec_ctrl_ops, + .id = V4L2_CID_STATELESS_FWHT_PARAMS, + .elem_size = sizeof(struct v4l2_ctrl_fwht_params), +}; + +/* + * File operations + */ +static int vicodec_open(struct file *file) +{ + const struct v4l2_fwht_pixfmt_info *info = v4l2_fwht_get_pixfmt(0); + struct video_device *vfd = video_devdata(file); + struct vicodec_dev *dev = video_drvdata(file); + struct vicodec_ctx *ctx = NULL; + struct v4l2_ctrl_handler *hdl; + unsigned int raw_size; + unsigned int comp_size; + int rc = 0; + + if (mutex_lock_interruptible(vfd->lock)) + return -ERESTARTSYS; + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) { + rc = -ENOMEM; + goto open_unlock; + } + + if (vfd == &dev->stateful_enc.vfd) + ctx->is_enc = true; + else if (vfd == &dev->stateless_dec.vfd) + ctx->is_stateless = true; + + v4l2_fh_init(&ctx->fh, video_devdata(file)); + file->private_data = &ctx->fh; + ctx->dev = dev; + hdl = &ctx->hdl; + v4l2_ctrl_handler_init(hdl, 5); + v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE, + 1, 16, 1, 10); + v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_I_FRAME_QP, + 1, 31, 1, 20); + v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP, + 1, 31, 1, 20); + if (ctx->is_enc) + v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, + V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 1, 1, 1); + if (ctx->is_stateless) + v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL); + if (hdl->error) { + rc = hdl->error; + v4l2_ctrl_handler_free(hdl); + kfree(ctx); + goto open_unlock; + } + ctx->fh.ctrl_handler = hdl; + v4l2_ctrl_handler_setup(hdl); + + if (ctx->is_enc) + ctx->q_data[V4L2_M2M_SRC].info = info; + else if (ctx->is_stateless) + ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_stateless_fwht; + else + ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_fwht; + ctx->q_data[V4L2_M2M_SRC].coded_width = 1280; + ctx->q_data[V4L2_M2M_SRC].coded_height = 720; + ctx->q_data[V4L2_M2M_SRC].visible_width = 1280; + ctx->q_data[V4L2_M2M_SRC].visible_height = 720; + raw_size = 1280 * 720 * info->sizeimage_mult / info->sizeimage_div; + comp_size = 1280 * 720 * pixfmt_fwht.sizeimage_mult / + pixfmt_fwht.sizeimage_div; + if (ctx->is_enc) + ctx->q_data[V4L2_M2M_SRC].sizeimage = raw_size; + else if (ctx->is_stateless) + ctx->q_data[V4L2_M2M_SRC].sizeimage = comp_size; + else + ctx->q_data[V4L2_M2M_SRC].sizeimage = + comp_size + sizeof(struct fwht_cframe_hdr); + ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; + if (ctx->is_enc) { + ctx->q_data[V4L2_M2M_DST].info = &pixfmt_fwht; + ctx->q_data[V4L2_M2M_DST].sizeimage = + comp_size + sizeof(struct fwht_cframe_hdr); + } else { + ctx->q_data[V4L2_M2M_DST].info = info; + ctx->q_data[V4L2_M2M_DST].sizeimage = raw_size; + } + + ctx->state.colorspace = V4L2_COLORSPACE_REC709; + + if (ctx->is_enc) { + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_enc.m2m_dev, + ctx, &queue_init); + ctx->lock = &dev->stateful_enc.lock; + } else if (ctx->is_stateless) { + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateless_dec.m2m_dev, + ctx, &queue_init); + ctx->lock = &dev->stateless_dec.lock; + } else { + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_dec.m2m_dev, + ctx, &queue_init); + ctx->lock = &dev->stateful_dec.lock; + } + + if (IS_ERR(ctx->fh.m2m_ctx)) { + rc = PTR_ERR(ctx->fh.m2m_ctx); + + v4l2_ctrl_handler_free(hdl); + v4l2_fh_exit(&ctx->fh); + kfree(ctx); + goto open_unlock; + } + + v4l2_fh_add(&ctx->fh); + +open_unlock: + mutex_unlock(vfd->lock); + return rc; +} + +static int vicodec_release(struct file *file) +{ + struct video_device *vfd = video_devdata(file); + struct vicodec_ctx *ctx = file2ctx(file); + + mutex_lock(vfd->lock); + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); + mutex_unlock(vfd->lock); + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + v4l2_ctrl_handler_free(&ctx->hdl); + kvfree(ctx->state.compressed_frame); + kfree(ctx); + + return 0; +} + +static int vicodec_request_validate(struct media_request *req) +{ + struct media_request_object *obj; + struct v4l2_ctrl_handler *parent_hdl, *hdl; + struct vicodec_ctx *ctx = NULL; + struct v4l2_ctrl *ctrl; + unsigned int count; + + list_for_each_entry(obj, &req->objects, list) { + struct vb2_buffer *vb; + + if (vb2_request_object_is_buffer(obj)) { + vb = container_of(obj, struct vb2_buffer, req_obj); + ctx = vb2_get_drv_priv(vb->vb2_queue); + + break; + } + } + + if (!ctx) { + pr_err("No buffer was provided with the request\n"); + return -ENOENT; + } + + count = vb2_request_buffer_cnt(req); + if (!count) { + v4l2_info(&ctx->dev->v4l2_dev, + "No buffer was provided with the request\n"); + return -ENOENT; + } else if (count > 1) { + v4l2_info(&ctx->dev->v4l2_dev, + "More than one buffer was provided with the request\n"); + return -EINVAL; + } + + parent_hdl = &ctx->hdl; + + hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl); + if (!hdl) { + v4l2_info(&ctx->dev->v4l2_dev, "Missing codec control\n"); + return -ENOENT; + } + ctrl = v4l2_ctrl_request_hdl_ctrl_find(hdl, + vicodec_ctrl_stateless_state.id); + v4l2_ctrl_request_hdl_put(hdl); + if (!ctrl) { + v4l2_info(&ctx->dev->v4l2_dev, + "Missing required codec control\n"); + return -ENOENT; + } + + return vb2_request_validate(req); +} + +static const struct v4l2_file_operations vicodec_fops = { + .owner = THIS_MODULE, + .open = vicodec_open, + .release = vicodec_release, + .poll = v4l2_m2m_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = v4l2_m2m_fop_mmap, +}; + +static const struct video_device vicodec_videodev = { + .name = VICODEC_NAME, + .vfl_dir = VFL_DIR_M2M, + .fops = &vicodec_fops, + .ioctl_ops = &vicodec_ioctl_ops, + .minor = -1, + .release = video_device_release_empty, +}; + +static const struct media_device_ops vicodec_m2m_media_ops = { + .req_validate = vicodec_request_validate, + .req_queue = v4l2_m2m_request_queue, +}; + +static const struct v4l2_m2m_ops m2m_ops = { + .device_run = device_run, + .job_ready = job_ready, +}; + +static int register_instance(struct vicodec_dev *dev, + struct vicodec_dev_instance *dev_instance, + const char *name, bool is_enc) +{ + struct video_device *vfd; + int ret; + + spin_lock_init(&dev_instance->lock); + mutex_init(&dev_instance->mutex); + dev_instance->m2m_dev = v4l2_m2m_init(&m2m_ops); + if (IS_ERR(dev_instance->m2m_dev)) { + v4l2_err(&dev->v4l2_dev, "Failed to init vicodec enc device\n"); + return PTR_ERR(dev_instance->m2m_dev); + } + + dev_instance->vfd = vicodec_videodev; + vfd = &dev_instance->vfd; + vfd->lock = &dev_instance->mutex; + vfd->v4l2_dev = &dev->v4l2_dev; + strscpy(vfd->name, name, sizeof(vfd->name)); + vfd->device_caps = V4L2_CAP_STREAMING | + (multiplanar ? V4L2_CAP_VIDEO_M2M_MPLANE : V4L2_CAP_VIDEO_M2M); + if (is_enc) { + v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); + v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); + } else { + v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD); + v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); + } + video_set_drvdata(vfd, dev); + + ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to register video device '%s'\n", name); + v4l2_m2m_release(dev_instance->m2m_dev); + return ret; + } + v4l2_info(&dev->v4l2_dev, "Device '%s' registered as /dev/video%d\n", + name, vfd->num); + return 0; +} + +static void vicodec_v4l2_dev_release(struct v4l2_device *v4l2_dev) +{ + struct vicodec_dev *dev = container_of(v4l2_dev, struct vicodec_dev, v4l2_dev); + + v4l2_device_unregister(&dev->v4l2_dev); + v4l2_m2m_release(dev->stateful_enc.m2m_dev); + v4l2_m2m_release(dev->stateful_dec.m2m_dev); + v4l2_m2m_release(dev->stateless_dec.m2m_dev); +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_cleanup(&dev->mdev); +#endif + kfree(dev); +} + +static int vicodec_probe(struct platform_device *pdev) +{ + struct vicodec_dev *dev; + int ret; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); + if (ret) + goto free_dev; + + dev->v4l2_dev.release = vicodec_v4l2_dev_release; + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->mdev.dev = &pdev->dev; + strscpy(dev->mdev.model, "vicodec", sizeof(dev->mdev.model)); + strscpy(dev->mdev.bus_info, "platform:vicodec", + sizeof(dev->mdev.bus_info)); + media_device_init(&dev->mdev); + dev->mdev.ops = &vicodec_m2m_media_ops; + dev->v4l2_dev.mdev = &dev->mdev; +#endif + + platform_set_drvdata(pdev, dev); + + ret = register_instance(dev, &dev->stateful_enc, "stateful-encoder", + true); + if (ret) + goto unreg_dev; + + ret = register_instance(dev, &dev->stateful_dec, "stateful-decoder", + false); + if (ret) + goto unreg_sf_enc; + + ret = register_instance(dev, &dev->stateless_dec, "stateless-decoder", + false); + if (ret) + goto unreg_sf_dec; + +#ifdef CONFIG_MEDIA_CONTROLLER + ret = v4l2_m2m_register_media_controller(dev->stateful_enc.m2m_dev, + &dev->stateful_enc.vfd, + MEDIA_ENT_F_PROC_VIDEO_ENCODER); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for enc\n"); + goto unreg_m2m; + } + + ret = v4l2_m2m_register_media_controller(dev->stateful_dec.m2m_dev, + &dev->stateful_dec.vfd, + MEDIA_ENT_F_PROC_VIDEO_DECODER); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for dec\n"); + goto unreg_m2m_sf_enc_mc; + } + + ret = v4l2_m2m_register_media_controller(dev->stateless_dec.m2m_dev, + &dev->stateless_dec.vfd, + MEDIA_ENT_F_PROC_VIDEO_DECODER); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for stateless dec\n"); + goto unreg_m2m_sf_dec_mc; + } + + ret = media_device_register(&dev->mdev); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); + goto unreg_m2m_sl_dec_mc; + } +#endif + return 0; + +#ifdef CONFIG_MEDIA_CONTROLLER +unreg_m2m_sl_dec_mc: + v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); +unreg_m2m_sf_dec_mc: + v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); +unreg_m2m_sf_enc_mc: + v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); +unreg_m2m: + video_unregister_device(&dev->stateless_dec.vfd); + v4l2_m2m_release(dev->stateless_dec.m2m_dev); +#endif +unreg_sf_dec: + video_unregister_device(&dev->stateful_dec.vfd); + v4l2_m2m_release(dev->stateful_dec.m2m_dev); +unreg_sf_enc: + video_unregister_device(&dev->stateful_enc.vfd); + v4l2_m2m_release(dev->stateful_enc.m2m_dev); +unreg_dev: + v4l2_device_unregister(&dev->v4l2_dev); +free_dev: + kfree(dev); + + return ret; +} + +static int vicodec_remove(struct platform_device *pdev) +{ + struct vicodec_dev *dev = platform_get_drvdata(pdev); + + v4l2_info(&dev->v4l2_dev, "Removing " VICODEC_NAME); + +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_unregister(&dev->mdev); + v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); + v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); + v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); +#endif + + video_unregister_device(&dev->stateful_enc.vfd); + video_unregister_device(&dev->stateful_dec.vfd); + video_unregister_device(&dev->stateless_dec.vfd); + v4l2_device_put(&dev->v4l2_dev); + + return 0; +} + +static struct platform_driver vicodec_pdrv = { + .probe = vicodec_probe, + .remove = vicodec_remove, + .driver = { + .name = VICODEC_NAME, + }, +}; + +static void __exit vicodec_exit(void) +{ + platform_driver_unregister(&vicodec_pdrv); + platform_device_unregister(&vicodec_pdev); +} + +static int __init vicodec_init(void) +{ + int ret; + + ret = platform_device_register(&vicodec_pdev); + if (ret) + return ret; + + ret = platform_driver_register(&vicodec_pdrv); + if (ret) + platform_device_unregister(&vicodec_pdev); + + return ret; +} + +module_init(vicodec_init); +module_exit(vicodec_exit); diff --git a/drivers/media/test-drivers/vidtv/Kconfig b/drivers/media/test-drivers/vidtv/Kconfig new file mode 100644 index 000000000..e511e51c0 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/Kconfig @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +config DVB_VIDTV + tristate "Virtual DVB Driver (vidtv)" + depends on DVB_CORE && MEDIA_SUPPORT && I2C + help + The virtual DVB test driver serves as a reference DVB driver and helps + validate the existing APIs in the media subsystem. It can also aid developers + working on userspace applications. + + When in doubt, say N. diff --git a/drivers/media/test-drivers/vidtv/Makefile b/drivers/media/test-drivers/vidtv/Makefile new file mode 100644 index 000000000..330089e3b --- /dev/null +++ b/drivers/media/test-drivers/vidtv/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 + +dvb-vidtv-tuner-objs := vidtv_tuner.o +dvb-vidtv-demod-objs := vidtv_demod.o +dvb-vidtv-bridge-objs := vidtv_bridge.o vidtv_common.o vidtv_ts.o vidtv_psi.o \ + vidtv_pes.o vidtv_s302m.o vidtv_channel.o vidtv_mux.o + +obj-$(CONFIG_DVB_VIDTV) += dvb-vidtv-tuner.o dvb-vidtv-demod.o \ + dvb-vidtv-bridge.o diff --git a/drivers/media/test-drivers/vidtv/vidtv_bridge.c b/drivers/media/test-drivers/vidtv/vidtv_bridge.c new file mode 100644 index 000000000..dff7265a4 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.c @@ -0,0 +1,608 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The Virtual DTV test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * When this module is loaded, it will attempt to modprobe 'dvb_vidtv_tuner' + * and 'dvb_vidtv_demod'. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#include <linux/dev_printk.h> +#include <linux/moduleparam.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/time.h> +#include <linux/types.h> +#include <linux/workqueue.h> +#include <media/dvbdev.h> +#include <media/media-device.h> + +#include "vidtv_bridge.h" +#include "vidtv_common.h" +#include "vidtv_demod.h" +#include "vidtv_mux.h" +#include "vidtv_ts.h" +#include "vidtv_tuner.h" + +#define MUX_BUF_MIN_SZ 90164 +#define MUX_BUF_MAX_SZ (MUX_BUF_MIN_SZ * 10) +#define TUNER_DEFAULT_ADDR 0x68 +#define DEMOD_DEFAULT_ADDR 0x60 +#define VIDTV_DEFAULT_NETWORK_ID 0xff44 +#define VIDTV_DEFAULT_NETWORK_NAME "LinuxTV.org" +#define VIDTV_DEFAULT_TS_ID 0x4081 + +/* + * The LNBf fake parameters here are the ranges used by an + * Universal (extended) European LNBf, which is likely the most common LNBf + * found on Satellite digital TV system nowadays. + */ +#define LNB_CUT_FREQUENCY 11700000 /* high IF frequency */ +#define LNB_LOW_FREQ 9750000 /* low IF frequency */ +#define LNB_HIGH_FREQ 10600000 /* transition frequency */ + +static unsigned int drop_tslock_prob_on_low_snr; +module_param(drop_tslock_prob_on_low_snr, uint, 0); +MODULE_PARM_DESC(drop_tslock_prob_on_low_snr, + "Probability of losing the TS lock if the signal quality is bad"); + +static unsigned int recover_tslock_prob_on_good_snr; +module_param(recover_tslock_prob_on_good_snr, uint, 0); +MODULE_PARM_DESC(recover_tslock_prob_on_good_snr, + "Probability recovering the TS lock when the signal improves"); + +static unsigned int mock_power_up_delay_msec; +module_param(mock_power_up_delay_msec, uint, 0); +MODULE_PARM_DESC(mock_power_up_delay_msec, "Simulate a power up delay"); + +static unsigned int mock_tune_delay_msec; +module_param(mock_tune_delay_msec, uint, 0); +MODULE_PARM_DESC(mock_tune_delay_msec, "Simulate a tune delay"); + +static unsigned int vidtv_valid_dvb_t_freqs[NUM_VALID_TUNER_FREQS] = { + 474000000 +}; + +module_param_array(vidtv_valid_dvb_t_freqs, uint, NULL, 0); +MODULE_PARM_DESC(vidtv_valid_dvb_t_freqs, + "Valid DVB-T frequencies to simulate, in Hz"); + +static unsigned int vidtv_valid_dvb_c_freqs[NUM_VALID_TUNER_FREQS] = { + 474000000 +}; + +module_param_array(vidtv_valid_dvb_c_freqs, uint, NULL, 0); +MODULE_PARM_DESC(vidtv_valid_dvb_c_freqs, + "Valid DVB-C frequencies to simulate, in Hz"); + +static unsigned int vidtv_valid_dvb_s_freqs[NUM_VALID_TUNER_FREQS] = { + 11362000 +}; +module_param_array(vidtv_valid_dvb_s_freqs, uint, NULL, 0); +MODULE_PARM_DESC(vidtv_valid_dvb_s_freqs, + "Valid DVB-S/S2 frequencies to simulate at Ku-Band, in kHz"); + +static unsigned int max_frequency_shift_hz; +module_param(max_frequency_shift_hz, uint, 0); +MODULE_PARM_DESC(max_frequency_shift_hz, + "Maximum shift in HZ allowed when tuning in a channel"); + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nums); + +/* + * Influences the signal acquisition time. See ISO/IEC 13818-1 : 2000. p. 113. + */ +static unsigned int si_period_msec = 40; +module_param(si_period_msec, uint, 0); +MODULE_PARM_DESC(si_period_msec, "How often to send SI packets. Default: 40ms"); + +static unsigned int pcr_period_msec = 40; +module_param(pcr_period_msec, uint, 0); +MODULE_PARM_DESC(pcr_period_msec, + "How often to send PCR packets. Default: 40ms"); + +static unsigned int mux_rate_kbytes_sec = 4096; +module_param(mux_rate_kbytes_sec, uint, 0); +MODULE_PARM_DESC(mux_rate_kbytes_sec, "Mux rate: will pad stream if below"); + +static unsigned int pcr_pid = 0x200; +module_param(pcr_pid, uint, 0); +MODULE_PARM_DESC(pcr_pid, "PCR PID for all channels: defaults to 0x200"); + +static unsigned int mux_buf_sz_pkts; +module_param(mux_buf_sz_pkts, uint, 0); +MODULE_PARM_DESC(mux_buf_sz_pkts, + "Size for the internal mux buffer in multiples of 188 bytes"); + +static u32 vidtv_bridge_mux_buf_sz_for_mux_rate(void) +{ + u32 max_elapsed_time_msecs = VIDTV_MAX_SLEEP_USECS / USEC_PER_MSEC; + u32 mux_buf_sz = mux_buf_sz_pkts * TS_PACKET_LEN; + u32 nbytes_expected; + + nbytes_expected = mux_rate_kbytes_sec; + nbytes_expected *= max_elapsed_time_msecs; + + mux_buf_sz = roundup(nbytes_expected, TS_PACKET_LEN); + mux_buf_sz += mux_buf_sz / 10; + + if (mux_buf_sz < MUX_BUF_MIN_SZ) + mux_buf_sz = MUX_BUF_MIN_SZ; + + if (mux_buf_sz > MUX_BUF_MAX_SZ) + mux_buf_sz = MUX_BUF_MAX_SZ; + + return mux_buf_sz; +} + +static bool vidtv_bridge_check_demod_lock(struct vidtv_dvb *dvb, u32 n) +{ + enum fe_status status; + + dvb->fe[n]->ops.read_status(dvb->fe[n], &status); + + return status == (FE_HAS_SIGNAL | + FE_HAS_CARRIER | + FE_HAS_VITERBI | + FE_HAS_SYNC | + FE_HAS_LOCK); +} + +/* + * called on a separate thread by the mux when new packets become available + */ +static void vidtv_bridge_on_new_pkts_avail(void *priv, u8 *buf, u32 npkts) +{ + struct vidtv_dvb *dvb = priv; + + /* drop packets if we lose the lock */ + if (vidtv_bridge_check_demod_lock(dvb, 0)) + dvb_dmx_swfilter_packets(&dvb->demux, buf, npkts); +} + +static int vidtv_start_streaming(struct vidtv_dvb *dvb) +{ + struct vidtv_mux_init_args mux_args = { + .mux_rate_kbytes_sec = mux_rate_kbytes_sec, + .on_new_packets_available_cb = vidtv_bridge_on_new_pkts_avail, + .pcr_period_usecs = pcr_period_msec * USEC_PER_MSEC, + .si_period_usecs = si_period_msec * USEC_PER_MSEC, + .pcr_pid = pcr_pid, + .transport_stream_id = VIDTV_DEFAULT_TS_ID, + .network_id = VIDTV_DEFAULT_NETWORK_ID, + .network_name = VIDTV_DEFAULT_NETWORK_NAME, + .priv = dvb, + }; + struct device *dev = &dvb->pdev->dev; + u32 mux_buf_sz; + + if (dvb->streaming) { + dev_warn_ratelimited(dev, "Already streaming. Skipping.\n"); + return 0; + } + + if (mux_buf_sz_pkts) + mux_buf_sz = mux_buf_sz_pkts; + else + mux_buf_sz = vidtv_bridge_mux_buf_sz_for_mux_rate(); + + mux_args.mux_buf_sz = mux_buf_sz; + + dvb->streaming = true; + dvb->mux = vidtv_mux_init(dvb->fe[0], dev, &mux_args); + if (!dvb->mux) + return -ENOMEM; + vidtv_mux_start_thread(dvb->mux); + + dev_dbg_ratelimited(dev, "Started streaming\n"); + return 0; +} + +static int vidtv_stop_streaming(struct vidtv_dvb *dvb) +{ + struct device *dev = &dvb->pdev->dev; + + dvb->streaming = false; + vidtv_mux_stop_thread(dvb->mux); + vidtv_mux_destroy(dvb->mux); + dvb->mux = NULL; + + dev_dbg_ratelimited(dev, "Stopped streaming\n"); + return 0; +} + +static int vidtv_start_feed(struct dvb_demux_feed *feed) +{ + struct dvb_demux *demux = feed->demux; + struct vidtv_dvb *dvb = demux->priv; + int ret; + int rc; + + if (!demux->dmx.frontend) + return -EINVAL; + + mutex_lock(&dvb->feed_lock); + + dvb->nfeeds++; + rc = dvb->nfeeds; + + if (dvb->nfeeds == 1) { + ret = vidtv_start_streaming(dvb); + if (ret < 0) + rc = ret; + } + + mutex_unlock(&dvb->feed_lock); + return rc; +} + +static int vidtv_stop_feed(struct dvb_demux_feed *feed) +{ + struct dvb_demux *demux = feed->demux; + struct vidtv_dvb *dvb = demux->priv; + int err = 0; + + mutex_lock(&dvb->feed_lock); + dvb->nfeeds--; + + if (!dvb->nfeeds) + err = vidtv_stop_streaming(dvb); + + mutex_unlock(&dvb->feed_lock); + return err; +} + +static struct dvb_frontend *vidtv_get_frontend_ptr(struct i2c_client *c) +{ + struct vidtv_demod_state *state = i2c_get_clientdata(c); + + /* the demod will set this when its probe function runs */ + return &state->frontend; +} + +static int vidtv_master_xfer(struct i2c_adapter *i2c_adap, + struct i2c_msg msgs[], + int num) +{ + /* + * Right now, this virtual driver doesn't really send or receive + * messages from I2C. A real driver will require an implementation + * here. + */ + return 0; +} + +static u32 vidtv_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static const struct i2c_algorithm vidtv_i2c_algorithm = { + .master_xfer = vidtv_master_xfer, + .functionality = vidtv_i2c_func, +}; + +static int vidtv_bridge_i2c_register_adap(struct vidtv_dvb *dvb) +{ + struct i2c_adapter *i2c_adapter = &dvb->i2c_adapter; + + strscpy(i2c_adapter->name, "vidtv_i2c", sizeof(i2c_adapter->name)); + i2c_adapter->owner = THIS_MODULE; + i2c_adapter->algo = &vidtv_i2c_algorithm; + i2c_adapter->algo_data = NULL; + i2c_adapter->timeout = 500; + i2c_adapter->retries = 3; + i2c_adapter->dev.parent = &dvb->pdev->dev; + + i2c_set_adapdata(i2c_adapter, dvb); + return i2c_add_adapter(&dvb->i2c_adapter); +} + +static int vidtv_bridge_register_adap(struct vidtv_dvb *dvb) +{ + int ret = 0; + + ret = dvb_register_adapter(&dvb->adapter, + KBUILD_MODNAME, + THIS_MODULE, + &dvb->i2c_adapter.dev, + adapter_nums); + + return ret; +} + +static int vidtv_bridge_dmx_init(struct vidtv_dvb *dvb) +{ + dvb->demux.dmx.capabilities = DMX_TS_FILTERING | + DMX_SECTION_FILTERING; + + dvb->demux.priv = dvb; + dvb->demux.filternum = 256; + dvb->demux.feednum = 256; + dvb->demux.start_feed = vidtv_start_feed; + dvb->demux.stop_feed = vidtv_stop_feed; + + return dvb_dmx_init(&dvb->demux); +} + +static int vidtv_bridge_dmxdev_init(struct vidtv_dvb *dvb) +{ + dvb->dmx_dev.filternum = 256; + dvb->dmx_dev.demux = &dvb->demux.dmx; + dvb->dmx_dev.capabilities = 0; + + return dvb_dmxdev_init(&dvb->dmx_dev, &dvb->adapter); +} + +static int vidtv_bridge_probe_demod(struct vidtv_dvb *dvb, u32 n) +{ + struct vidtv_demod_config cfg = { + .drop_tslock_prob_on_low_snr = drop_tslock_prob_on_low_snr, + .recover_tslock_prob_on_good_snr = recover_tslock_prob_on_good_snr, + }; + dvb->i2c_client_demod[n] = dvb_module_probe("dvb_vidtv_demod", + NULL, + &dvb->i2c_adapter, + DEMOD_DEFAULT_ADDR, + &cfg); + + /* driver will not work anyways so bail out */ + if (!dvb->i2c_client_demod[n]) + return -ENODEV; + + /* retrieve a ptr to the frontend state */ + dvb->fe[n] = vidtv_get_frontend_ptr(dvb->i2c_client_demod[n]); + + return 0; +} + +static int vidtv_bridge_probe_tuner(struct vidtv_dvb *dvb, u32 n) +{ + struct vidtv_tuner_config cfg = { + .fe = dvb->fe[n], + .mock_power_up_delay_msec = mock_power_up_delay_msec, + .mock_tune_delay_msec = mock_tune_delay_msec, + }; + u32 freq; + int i; + + /* TODO: check if the frequencies are at a valid range */ + + memcpy(cfg.vidtv_valid_dvb_t_freqs, + vidtv_valid_dvb_t_freqs, + sizeof(vidtv_valid_dvb_t_freqs)); + + memcpy(cfg.vidtv_valid_dvb_c_freqs, + vidtv_valid_dvb_c_freqs, + sizeof(vidtv_valid_dvb_c_freqs)); + + /* + * Convert Satellite frequencies from Ku-band in kHZ into S-band + * frequencies in Hz. + */ + for (i = 0; i < ARRAY_SIZE(vidtv_valid_dvb_s_freqs); i++) { + freq = vidtv_valid_dvb_s_freqs[i]; + if (freq) { + if (freq < LNB_CUT_FREQUENCY) + freq = abs(freq - LNB_LOW_FREQ); + else + freq = abs(freq - LNB_HIGH_FREQ); + } + cfg.vidtv_valid_dvb_s_freqs[i] = freq; + } + + cfg.max_frequency_shift_hz = max_frequency_shift_hz; + + dvb->i2c_client_tuner[n] = dvb_module_probe("dvb_vidtv_tuner", + NULL, + &dvb->i2c_adapter, + TUNER_DEFAULT_ADDR, + &cfg); + + return (dvb->i2c_client_tuner[n]) ? 0 : -ENODEV; +} + +static int vidtv_bridge_dvb_init(struct vidtv_dvb *dvb) +{ + int ret, i, j; + + ret = vidtv_bridge_i2c_register_adap(dvb); + if (ret < 0) + goto fail_i2c; + + ret = vidtv_bridge_register_adap(dvb); + if (ret < 0) + goto fail_adapter; + dvb_register_media_controller(&dvb->adapter, &dvb->mdev); + + for (i = 0; i < NUM_FE; ++i) { + ret = vidtv_bridge_probe_demod(dvb, i); + if (ret < 0) + goto fail_demod_probe; + + ret = vidtv_bridge_probe_tuner(dvb, i); + if (ret < 0) + goto fail_tuner_probe; + + ret = dvb_register_frontend(&dvb->adapter, dvb->fe[i]); + if (ret < 0) + goto fail_fe; + } + + ret = vidtv_bridge_dmx_init(dvb); + if (ret < 0) + goto fail_dmx; + + ret = vidtv_bridge_dmxdev_init(dvb); + if (ret < 0) + goto fail_dmx_dev; + + for (j = 0; j < NUM_FE; ++j) { + ret = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, + &dvb->dmx_fe[j]); + if (ret < 0) + goto fail_dmx_conn; + + /* + * The source of the demux is a frontend connected + * to the demux. + */ + dvb->dmx_fe[j].source = DMX_FRONTEND_0; + } + + return ret; + +fail_dmx_conn: + for (j = j - 1; j >= 0; --j) + dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, + &dvb->dmx_fe[j]); + dvb_dmxdev_release(&dvb->dmx_dev); +fail_dmx_dev: + dvb_dmx_release(&dvb->demux); +fail_dmx: +fail_demod_probe: + for (i = i - 1; i >= 0; --i) { + dvb_unregister_frontend(dvb->fe[i]); +fail_fe: + dvb_module_release(dvb->i2c_client_tuner[i]); +fail_tuner_probe: + dvb_module_release(dvb->i2c_client_demod[i]); + } +fail_adapter: + dvb_unregister_adapter(&dvb->adapter); +fail_i2c: + i2c_del_adapter(&dvb->i2c_adapter); + + return ret; +} + +static int vidtv_bridge_probe(struct platform_device *pdev) +{ + struct vidtv_dvb *dvb; + int ret; + + dvb = kzalloc(sizeof(*dvb), GFP_KERNEL); + if (!dvb) + return -ENOMEM; + + dvb->pdev = pdev; + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + dvb->mdev.dev = &pdev->dev; + + strscpy(dvb->mdev.model, "vidtv", sizeof(dvb->mdev.model)); + strscpy(dvb->mdev.bus_info, "platform:vidtv", sizeof(dvb->mdev.bus_info)); + + media_device_init(&dvb->mdev); +#endif + + ret = vidtv_bridge_dvb_init(dvb); + if (ret < 0) + goto err_dvb; + + mutex_init(&dvb->feed_lock); + + platform_set_drvdata(pdev, dvb); + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + ret = media_device_register(&dvb->mdev); + if (ret) { + dev_err(dvb->mdev.dev, + "media device register failed (err=%d)\n", ret); + goto err_media_device_register; + } +#endif /* CONFIG_MEDIA_CONTROLLER_DVB */ + + dev_info(&pdev->dev, "Successfully initialized vidtv!\n"); + return ret; + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB +err_media_device_register: + media_device_cleanup(&dvb->mdev); +#endif /* CONFIG_MEDIA_CONTROLLER_DVB */ +err_dvb: + kfree(dvb); + return ret; +} + +static int vidtv_bridge_remove(struct platform_device *pdev) +{ + struct vidtv_dvb *dvb; + u32 i; + + dvb = platform_get_drvdata(pdev); + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + media_device_unregister(&dvb->mdev); + media_device_cleanup(&dvb->mdev); +#endif /* CONFIG_MEDIA_CONTROLLER_DVB */ + + mutex_destroy(&dvb->feed_lock); + + for (i = 0; i < NUM_FE; ++i) { + dvb_unregister_frontend(dvb->fe[i]); + dvb_module_release(dvb->i2c_client_tuner[i]); + dvb_module_release(dvb->i2c_client_demod[i]); + } + + dvb_dmxdev_release(&dvb->dmx_dev); + dvb_dmx_release(&dvb->demux); + dvb_unregister_adapter(&dvb->adapter); + dev_info(&pdev->dev, "Successfully removed vidtv\n"); + + return 0; +} + +static void vidtv_bridge_dev_release(struct device *dev) +{ + struct vidtv_dvb *dvb; + + dvb = dev_get_drvdata(dev); + kfree(dvb); +} + +static struct platform_device vidtv_bridge_dev = { + .name = VIDTV_PDEV_NAME, + .dev.release = vidtv_bridge_dev_release, +}; + +static struct platform_driver vidtv_bridge_driver = { + .driver = { + .name = VIDTV_PDEV_NAME, + }, + .probe = vidtv_bridge_probe, + .remove = vidtv_bridge_remove, +}; + +static void __exit vidtv_bridge_exit(void) +{ + platform_driver_unregister(&vidtv_bridge_driver); + platform_device_unregister(&vidtv_bridge_dev); +} + +static int __init vidtv_bridge_init(void) +{ + int ret; + + ret = platform_device_register(&vidtv_bridge_dev); + if (ret) + return ret; + + ret = platform_driver_register(&vidtv_bridge_driver); + if (ret) + platform_device_unregister(&vidtv_bridge_dev); + + return ret; +} + +module_init(vidtv_bridge_init); +module_exit(vidtv_bridge_exit); + +MODULE_DESCRIPTION("Virtual Digital TV Test Driver"); +MODULE_AUTHOR("Daniel W. S. Almeida"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("vidtv"); +MODULE_ALIAS("dvb_vidtv"); diff --git a/drivers/media/test-drivers/vidtv/vidtv_bridge.h b/drivers/media/test-drivers/vidtv/vidtv_bridge.h new file mode 100644 index 000000000..de47ce6e7 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The Virtual DTV test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * When this module is loaded, it will attempt to modprobe 'dvb_vidtv_tuner' and 'dvb_vidtv_demod'. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_BRIDGE_H +#define VIDTV_BRIDGE_H + +/* + * For now, only one frontend is supported. See vidtv_start_streaming() + */ +#define NUM_FE 1 +#define VIDTV_PDEV_NAME "vidtv" + +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/types.h> + +#include <media/dmxdev.h> +#include <media/dvb_demux.h> +#include <media/dvb_frontend.h> +#include <media/media-device.h> + +#include "vidtv_mux.h" + +/** + * struct vidtv_dvb - Vidtv bridge state + * @pdev: The platform device. Obtained when the bridge is probed. + * @fe: The frontends. Obtained when probing the demodulator modules. + * @adapter: Represents a DTV adapter. See 'dvb_register_adapter'. + * @demux: The demux used by the dvb_dmx_swfilter_packets() call. + * @dmx_dev: Represents a demux device. + * @dmx_fe: The frontends associated with the demux. + * @i2c_adapter: The i2c_adapter associated with the bridge driver. + * @i2c_client_demod: The i2c_clients associated with the demodulator modules. + * @i2c_client_tuner: The i2c_clients associated with the tuner modules. + * @nfeeds: The number of feeds active. + * @feed_lock: Protects access to the start/stop stream logic/data. + * @streaming: Whether we are streaming now. + * @mux: The abstraction responsible for delivering MPEG TS packets to the bridge. + * @mdev: The media_device struct for media controller support. + */ +struct vidtv_dvb { + struct platform_device *pdev; + struct dvb_frontend *fe[NUM_FE]; + struct dvb_adapter adapter; + struct dvb_demux demux; + struct dmxdev dmx_dev; + struct dmx_frontend dmx_fe[NUM_FE]; + struct i2c_adapter i2c_adapter; + struct i2c_client *i2c_client_demod[NUM_FE]; + struct i2c_client *i2c_client_tuner[NUM_FE]; + + u32 nfeeds; + struct mutex feed_lock; /* Protects access to the start/stop stream logic/data. */ + + bool streaming; + + struct vidtv_mux *mux; + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + struct media_device mdev; +#endif /* CONFIG_MEDIA_CONTROLLER_DVB */ +}; + +#endif // VIDTV_BRIDG_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_channel.c b/drivers/media/test-drivers/vidtv/vidtv_channel.c new file mode 100644 index 000000000..7838e6272 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_channel.c @@ -0,0 +1,546 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the code for a 'channel' abstraction. + * + * When vidtv boots, it will create some hardcoded channels. + * Their services will be concatenated to populate the SDT. + * Their programs will be concatenated to populate the PAT + * Their events will be concatenated to populate the EIT + * For each program in the PAT, a PMT section will be created + * The PMT section for a channel will be assigned its streams. + * Every stream will have its corresponding encoder polled to produce TS packets + * These packets may be interleaved by the mux and then delivered to the bridge + * + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#include <linux/dev_printk.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/types.h> + +#include "vidtv_channel.h" +#include "vidtv_common.h" +#include "vidtv_encoder.h" +#include "vidtv_mux.h" +#include "vidtv_psi.h" +#include "vidtv_s302m.h" + +static void vidtv_channel_encoder_destroy(struct vidtv_encoder *e) +{ + struct vidtv_encoder *tmp = NULL; + struct vidtv_encoder *curr = e; + + while (curr) { + /* forward the call to the derived type */ + tmp = curr; + curr = curr->next; + tmp->destroy(tmp); + } +} + +#define ENCODING_ISO8859_15 "\x0b" +#define TS_NIT_PID 0x10 + +/* + * init an audio only channel with a s302m encoder + */ +struct vidtv_channel +*vidtv_channel_s302m_init(struct vidtv_channel *head, u16 transport_stream_id) +{ + const __be32 s302m_fid = cpu_to_be32(VIDTV_S302M_FORMAT_IDENTIFIER); + char *event_text = ENCODING_ISO8859_15 "Bagatelle No. 25 in A minor for solo piano, also known as F\xfcr Elise, composed by Ludwig van Beethoven"; + char *event_name = ENCODING_ISO8859_15 "Ludwig van Beethoven: F\xfcr Elise"; + struct vidtv_s302m_encoder_init_args encoder_args = {}; + char *iso_language_code = ENCODING_ISO8859_15 "eng"; + char *provider = ENCODING_ISO8859_15 "LinuxTV.org"; + char *name = ENCODING_ISO8859_15 "Beethoven"; + const u16 s302m_es_pid = 0x111; /* packet id for the ES */ + const u16 s302m_program_pid = 0x101; /* packet id for PMT*/ + const u16 s302m_service_id = 0x880; + const u16 s302m_program_num = 0x880; + const u16 s302m_beethoven_event_id = 1; + struct vidtv_channel *s302m; + + s302m = kzalloc(sizeof(*s302m), GFP_KERNEL); + if (!s302m) + return NULL; + + s302m->name = kstrdup(name, GFP_KERNEL); + if (!s302m->name) + goto free_s302m; + + s302m->service = vidtv_psi_sdt_service_init(NULL, s302m_service_id, false, true); + if (!s302m->service) + goto free_name; + + s302m->service->descriptor = (struct vidtv_psi_desc *) + vidtv_psi_service_desc_init(NULL, + DIGITAL_RADIO_SOUND_SERVICE, + name, + provider); + if (!s302m->service->descriptor) + goto free_service; + + s302m->transport_stream_id = transport_stream_id; + + s302m->program = vidtv_psi_pat_program_init(NULL, + s302m_service_id, + s302m_program_pid); + if (!s302m->program) + goto free_service; + + s302m->program_num = s302m_program_num; + + s302m->streams = vidtv_psi_pmt_stream_init(NULL, + STREAM_PRIVATE_DATA, + s302m_es_pid); + if (!s302m->streams) + goto free_program; + + s302m->streams->descriptor = (struct vidtv_psi_desc *) + vidtv_psi_registration_desc_init(NULL, + s302m_fid, + NULL, + 0); + if (!s302m->streams->descriptor) + goto free_streams; + + encoder_args.es_pid = s302m_es_pid; + + s302m->encoders = vidtv_s302m_encoder_init(encoder_args); + if (!s302m->encoders) + goto free_streams; + + s302m->events = vidtv_psi_eit_event_init(NULL, s302m_beethoven_event_id); + if (!s302m->events) + goto free_encoders; + s302m->events->descriptor = (struct vidtv_psi_desc *) + vidtv_psi_short_event_desc_init(NULL, + iso_language_code, + event_name, + event_text); + if (!s302m->events->descriptor) + goto free_events; + + if (head) { + while (head->next) + head = head->next; + + head->next = s302m; + } + + return s302m; + +free_events: + vidtv_psi_eit_event_destroy(s302m->events); +free_encoders: + vidtv_s302m_encoder_destroy(s302m->encoders); +free_streams: + vidtv_psi_pmt_stream_destroy(s302m->streams); +free_program: + vidtv_psi_pat_program_destroy(s302m->program); +free_service: + vidtv_psi_sdt_service_destroy(s302m->service); +free_name: + kfree(s302m->name); +free_s302m: + kfree(s302m); + + return NULL; +} + +static struct vidtv_psi_table_eit_event +*vidtv_channel_eit_event_cat_into_new(struct vidtv_mux *m) +{ + /* Concatenate the events */ + const struct vidtv_channel *cur_chnl = m->channels; + struct vidtv_psi_table_eit_event *curr = NULL; + struct vidtv_psi_table_eit_event *head = NULL; + struct vidtv_psi_table_eit_event *tail = NULL; + struct vidtv_psi_desc *desc = NULL; + u16 event_id; + + if (!cur_chnl) + return NULL; + + while (cur_chnl) { + curr = cur_chnl->events; + + if (!curr) + dev_warn_ratelimited(m->dev, + "No events found for channel %s\n", + cur_chnl->name); + + while (curr) { + event_id = be16_to_cpu(curr->event_id); + tail = vidtv_psi_eit_event_init(tail, event_id); + if (!tail) { + vidtv_psi_eit_event_destroy(head); + return NULL; + } + + desc = vidtv_psi_desc_clone(curr->descriptor); + vidtv_psi_desc_assign(&tail->descriptor, desc); + + if (!head) + head = tail; + + curr = curr->next; + } + + cur_chnl = cur_chnl->next; + } + + return head; +} + +static struct vidtv_psi_table_sdt_service +*vidtv_channel_sdt_serv_cat_into_new(struct vidtv_mux *m) +{ + /* Concatenate the services */ + const struct vidtv_channel *cur_chnl = m->channels; + + struct vidtv_psi_table_sdt_service *curr = NULL; + struct vidtv_psi_table_sdt_service *head = NULL; + struct vidtv_psi_table_sdt_service *tail = NULL; + + struct vidtv_psi_desc *desc = NULL; + u16 service_id; + + if (!cur_chnl) + return NULL; + + while (cur_chnl) { + curr = cur_chnl->service; + + if (!curr) + dev_warn_ratelimited(m->dev, + "No services found for channel %s\n", + cur_chnl->name); + + while (curr) { + service_id = be16_to_cpu(curr->service_id); + tail = vidtv_psi_sdt_service_init(tail, + service_id, + curr->EIT_schedule, + curr->EIT_present_following); + if (!tail) + goto free; + + desc = vidtv_psi_desc_clone(curr->descriptor); + if (!desc) + goto free_tail; + vidtv_psi_desc_assign(&tail->descriptor, desc); + + if (!head) + head = tail; + + curr = curr->next; + } + + cur_chnl = cur_chnl->next; + } + + return head; + +free_tail: + vidtv_psi_sdt_service_destroy(tail); +free: + vidtv_psi_sdt_service_destroy(head); + return NULL; +} + +static struct vidtv_psi_table_pat_program* +vidtv_channel_pat_prog_cat_into_new(struct vidtv_mux *m) +{ + /* Concatenate the programs */ + const struct vidtv_channel *cur_chnl = m->channels; + struct vidtv_psi_table_pat_program *curr = NULL; + struct vidtv_psi_table_pat_program *head = NULL; + struct vidtv_psi_table_pat_program *tail = NULL; + u16 serv_id; + u16 pid; + + if (!cur_chnl) + return NULL; + + while (cur_chnl) { + curr = cur_chnl->program; + + if (!curr) + dev_warn_ratelimited(m->dev, + "No programs found for channel %s\n", + cur_chnl->name); + + while (curr) { + serv_id = be16_to_cpu(curr->service_id); + pid = vidtv_psi_get_pat_program_pid(curr); + tail = vidtv_psi_pat_program_init(tail, + serv_id, + pid); + if (!tail) { + vidtv_psi_pat_program_destroy(head); + return NULL; + } + + if (!head) + head = tail; + + curr = curr->next; + } + + cur_chnl = cur_chnl->next; + } + /* Add the NIT table */ + vidtv_psi_pat_program_init(tail, 0, TS_NIT_PID); + + return head; +} + +/* + * Match channels to their respective PMT sections, then assign the + * streams + */ +static void +vidtv_channel_pmt_match_sections(struct vidtv_channel *channels, + struct vidtv_psi_table_pmt **sections, + u32 nsections) +{ + struct vidtv_psi_table_pmt *curr_section = NULL; + struct vidtv_psi_table_pmt_stream *head = NULL; + struct vidtv_psi_table_pmt_stream *tail = NULL; + struct vidtv_psi_table_pmt_stream *s = NULL; + struct vidtv_channel *cur_chnl = channels; + struct vidtv_psi_desc *desc = NULL; + u16 e_pid; /* elementary stream pid */ + u16 curr_id; + u32 j; + + while (cur_chnl) { + for (j = 0; j < nsections; ++j) { + curr_section = sections[j]; + + if (!curr_section) + continue; + + curr_id = be16_to_cpu(curr_section->header.id); + + /* we got a match */ + if (curr_id == cur_chnl->program_num) { + s = cur_chnl->streams; + + /* clone the streams for the PMT */ + while (s) { + e_pid = vidtv_psi_pmt_stream_get_elem_pid(s); + tail = vidtv_psi_pmt_stream_init(tail, + s->type, + e_pid); + + if (!head) + head = tail; + + desc = vidtv_psi_desc_clone(s->descriptor); + vidtv_psi_desc_assign(&tail->descriptor, + desc); + + s = s->next; + } + + vidtv_psi_pmt_stream_assign(curr_section, head); + break; + } + } + + cur_chnl = cur_chnl->next; + } +} + +static void +vidtv_channel_destroy_service_list(struct vidtv_psi_desc_service_list_entry *e) +{ + struct vidtv_psi_desc_service_list_entry *tmp; + + while (e) { + tmp = e; + e = e->next; + kfree(tmp); + } +} + +static struct vidtv_psi_desc_service_list_entry +*vidtv_channel_build_service_list(struct vidtv_psi_table_sdt_service *s) +{ + struct vidtv_psi_desc_service_list_entry *curr_e = NULL; + struct vidtv_psi_desc_service_list_entry *head_e = NULL; + struct vidtv_psi_desc_service_list_entry *prev_e = NULL; + struct vidtv_psi_desc *desc = s->descriptor; + struct vidtv_psi_desc_service *s_desc; + + while (s) { + while (desc) { + if (s->descriptor->type != SERVICE_DESCRIPTOR) + goto next_desc; + + s_desc = (struct vidtv_psi_desc_service *)desc; + + curr_e = kzalloc(sizeof(*curr_e), GFP_KERNEL); + if (!curr_e) { + vidtv_channel_destroy_service_list(head_e); + return NULL; + } + + curr_e->service_id = s->service_id; + curr_e->service_type = s_desc->service_type; + + if (!head_e) + head_e = curr_e; + if (prev_e) + prev_e->next = curr_e; + + prev_e = curr_e; + +next_desc: + desc = desc->next; + } + s = s->next; + } + return head_e; +} + +int vidtv_channel_si_init(struct vidtv_mux *m) +{ + struct vidtv_psi_desc_service_list_entry *service_list = NULL; + struct vidtv_psi_table_pat_program *programs = NULL; + struct vidtv_psi_table_sdt_service *services = NULL; + struct vidtv_psi_table_eit_event *events = NULL; + + m->si.pat = vidtv_psi_pat_table_init(m->transport_stream_id); + if (!m->si.pat) + return -ENOMEM; + + m->si.sdt = vidtv_psi_sdt_table_init(m->network_id, + m->transport_stream_id); + if (!m->si.sdt) + goto free_pat; + + programs = vidtv_channel_pat_prog_cat_into_new(m); + if (!programs) + goto free_sdt; + services = vidtv_channel_sdt_serv_cat_into_new(m); + if (!services) + goto free_programs; + + events = vidtv_channel_eit_event_cat_into_new(m); + if (!events) + goto free_services; + + /* look for a service descriptor for every service */ + service_list = vidtv_channel_build_service_list(services); + if (!service_list) + goto free_events; + + /* use these descriptors to build the NIT */ + m->si.nit = vidtv_psi_nit_table_init(m->network_id, + m->transport_stream_id, + m->network_name, + service_list); + if (!m->si.nit) + goto free_service_list; + + m->si.eit = vidtv_psi_eit_table_init(m->network_id, + m->transport_stream_id, + programs->service_id); + if (!m->si.eit) + goto free_nit; + + /* assemble all programs and assign to PAT */ + vidtv_psi_pat_program_assign(m->si.pat, programs); + + /* assemble all services and assign to SDT */ + vidtv_psi_sdt_service_assign(m->si.sdt, services); + + /* assemble all events and assign to EIT */ + vidtv_psi_eit_event_assign(m->si.eit, events); + + m->si.pmt_secs = vidtv_psi_pmt_create_sec_for_each_pat_entry(m->si.pat, + m->pcr_pid); + if (!m->si.pmt_secs) + goto free_eit; + + vidtv_channel_pmt_match_sections(m->channels, + m->si.pmt_secs, + m->si.pat->num_pmt); + + vidtv_channel_destroy_service_list(service_list); + + return 0; + +free_eit: + vidtv_psi_eit_table_destroy(m->si.eit); +free_nit: + vidtv_psi_nit_table_destroy(m->si.nit); +free_service_list: + vidtv_channel_destroy_service_list(service_list); +free_events: + vidtv_psi_eit_event_destroy(events); +free_services: + vidtv_psi_sdt_service_destroy(services); +free_programs: + vidtv_psi_pat_program_destroy(programs); +free_sdt: + vidtv_psi_sdt_table_destroy(m->si.sdt); +free_pat: + vidtv_psi_pat_table_destroy(m->si.pat); + return 0; +} + +void vidtv_channel_si_destroy(struct vidtv_mux *m) +{ + u32 i; + + for (i = 0; i < m->si.pat->num_pmt; ++i) + vidtv_psi_pmt_table_destroy(m->si.pmt_secs[i]); + + vidtv_psi_pat_table_destroy(m->si.pat); + + kfree(m->si.pmt_secs); + vidtv_psi_sdt_table_destroy(m->si.sdt); + vidtv_psi_nit_table_destroy(m->si.nit); + vidtv_psi_eit_table_destroy(m->si.eit); +} + +int vidtv_channels_init(struct vidtv_mux *m) +{ + /* this is the place to add new 'channels' for vidtv */ + m->channels = vidtv_channel_s302m_init(NULL, m->transport_stream_id); + + if (!m->channels) + return -ENOMEM; + + return 0; +} + +void vidtv_channels_destroy(struct vidtv_mux *m) +{ + struct vidtv_channel *curr = m->channels; + struct vidtv_channel *tmp = NULL; + + while (curr) { + kfree(curr->name); + vidtv_psi_sdt_service_destroy(curr->service); + vidtv_psi_pat_program_destroy(curr->program); + vidtv_psi_pmt_stream_destroy(curr->streams); + vidtv_channel_encoder_destroy(curr->encoders); + vidtv_psi_eit_event_destroy(curr->events); + + tmp = curr; + curr = curr->next; + kfree(tmp); + } +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_channel.h b/drivers/media/test-drivers/vidtv/vidtv_channel.h new file mode 100644 index 000000000..fff2e501d --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_channel.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the code for a 'channel' abstraction. + * + * When vidtv boots, it will create some hardcoded channels. + * Their services will be concatenated to populate the SDT. + * Their programs will be concatenated to populate the PAT + * Their events will be concatenated to populate the EIT + * For each program in the PAT, a PMT section will be created + * The PMT section for a channel will be assigned its streams. + * Every stream will have its corresponding encoder polled to produce TS packets + * These packets may be interleaved by the mux and then delivered to the bridge + * + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_CHANNEL_H +#define VIDTV_CHANNEL_H + +#include <linux/types.h> + +#include "vidtv_encoder.h" +#include "vidtv_mux.h" +#include "vidtv_psi.h" + +/** + * struct vidtv_channel - A 'channel' abstraction + * + * When vidtv boots, it will create some hardcoded channels. + * Their services will be concatenated to populate the SDT. + * Their programs will be concatenated to populate the PAT + * For each program in the PAT, a PMT section will be created + * The PMT section for a channel will be assigned its streams. + * Every stream will have its corresponding encoder polled to produce TS packets + * These packets may be interleaved by the mux and then delivered to the bridge + * + * @name: name of the channel + * @transport_stream_id: a number to identify the TS, chosen at will. + * @service: A _single_ service. Will be concatenated into the SDT. + * @program_num: The link between PAT, PMT and SDT. + * @program: A _single_ program with one or more streams associated with it. + * Will be concatenated into the PAT. + * @streams: A stream loop used to populate the PMT section for 'program' + * @encoders: A encoder loop. There must be one encoder for each stream. + * @events: Optional event information. This will feed into the EIT. + * @next: Optionally chain this channel. + */ +struct vidtv_channel { + char *name; + u16 transport_stream_id; + struct vidtv_psi_table_sdt_service *service; + u16 program_num; + struct vidtv_psi_table_pat_program *program; + struct vidtv_psi_table_pmt_stream *streams; + struct vidtv_encoder *encoders; + struct vidtv_psi_table_eit_event *events; + struct vidtv_channel *next; +}; + +/** + * vidtv_channel_si_init - Init the PSI tables from the channels in the mux + * @m: The mux containing the channels. + */ +int vidtv_channel_si_init(struct vidtv_mux *m); +void vidtv_channel_si_destroy(struct vidtv_mux *m); + +/** + * vidtv_channels_init - Init hardcoded, fake 'channels'. + * @m: The mux to store the channels into. + */ +int vidtv_channels_init(struct vidtv_mux *m); +struct vidtv_channel +*vidtv_channel_s302m_init(struct vidtv_channel *head, u16 transport_stream_id); +void vidtv_channels_destroy(struct vidtv_mux *m); + +#endif //VIDTV_CHANNEL_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_common.c b/drivers/media/test-drivers/vidtv/vidtv_common.c new file mode 100644 index 000000000..63b3055bd --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_common.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ +#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__ + +#include <linux/printk.h> +#include <linux/ratelimit.h> +#include <linux/string.h> +#include <linux/types.h> + +#include "vidtv_common.h" + +/** + * vidtv_memcpy() - wrapper routine to be used by MPEG-TS + * generator, in order to avoid going past the + * output buffer. + * @to: Starting element to where a MPEG-TS packet will + * be copied. + * @to_offset: Starting position of the @to buffer to be filled. + * @to_size: Size of the @to buffer. + * @from: Starting element of the buffer to be copied. + * @len: Number of elements to be copy from @from buffer + * into @to+ @to_offset buffer. + * + * Note: + * Real digital TV demod drivers should not have memcpy + * wrappers. We use it here because emulating MPEG-TS + * generation at kernelspace requires some extra care. + * + * Return: + * Returns the number of bytes written + */ +u32 vidtv_memcpy(void *to, + size_t to_offset, + size_t to_size, + const void *from, + size_t len) +{ + if (unlikely(to_offset + len > to_size)) { + pr_err_ratelimited("overflow detected, skipping. Try increasing the buffer size. Needed %zu, had %zu\n", + to_offset + len, + to_size); + return 0; + } + + memcpy(to + to_offset, from, len); + return len; +} + +/** + * vidtv_memset() - wrapper routine to be used by MPEG-TS + * generator, in order to avoid going past the + * output buffer. + * @to: Starting element to set + * @to_offset: Starting position of the @to buffer to be filled. + * @to_size: Size of the @to buffer. + * @c: The value to set the memory to. + * @len: Number of elements to be copy from @from buffer + * into @to+ @to_offset buffer. + * + * Note: + * Real digital TV demod drivers should not have memset + * wrappers. We use it here because emulating MPEG-TS + * generation at kernelspace requires some extra care. + * + * Return: + * Returns the number of bytes written + */ +u32 vidtv_memset(void *to, + size_t to_offset, + size_t to_size, + const int c, + size_t len) +{ + if (unlikely(to_offset + len > to_size)) { + pr_err_ratelimited("overflow detected, skipping. Try increasing the buffer size. Needed %zu, had %zu\n", + to_offset + len, + to_size); + return 0; + } + + memset(to + to_offset, c, len); + return len; +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_common.h b/drivers/media/test-drivers/vidtv/vidtv_common.h new file mode 100644 index 000000000..42f63fdee --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_common.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_COMMON_H +#define VIDTV_COMMON_H + +#include <linux/types.h> + +#define CLOCK_UNIT_90KHZ 90000 +#define CLOCK_UNIT_27MHZ 27000000 +#define VIDTV_SLEEP_USECS 10000 +#define VIDTV_MAX_SLEEP_USECS (2 * VIDTV_SLEEP_USECS) + +u32 vidtv_memcpy(void *to, + size_t to_offset, + size_t to_size, + const void *from, + size_t len); + +u32 vidtv_memset(void *to, + size_t to_offset, + size_t to_size, + int c, + size_t len); + +#endif // VIDTV_COMMON_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_demod.c b/drivers/media/test-drivers/vidtv/vidtv_demod.c new file mode 100644 index 000000000..e7959ab1a --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_demod.c @@ -0,0 +1,462 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + * Based on the example driver written by Emard <emard@softhome.net> + */ + +#include <linux/errno.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/printk.h> +#include <linux/random.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/workqueue.h> + +#include <media/dvb_frontend.h> + +#include "vidtv_demod.h" + +#define POLL_THRD_TIME 2000 /* ms */ + +static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_c_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QAM_256, FEC_NONE, 34000, 38000}, + { QAM_64, FEC_NONE, 30000, 34000}, +}; + +static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_s_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QPSK, FEC_1_2, 7000, 10000}, + { QPSK, FEC_2_3, 9000, 12000}, + { QPSK, FEC_3_4, 10000, 13000}, + { QPSK, FEC_5_6, 11000, 14000}, + { QPSK, FEC_7_8, 12000, 15000}, +}; + +static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_s2_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QPSK, FEC_1_2, 9000, 12000}, + { QPSK, FEC_2_3, 11000, 14000}, + { QPSK, FEC_3_4, 12000, 15000}, + { QPSK, FEC_5_6, 12000, 15000}, + { QPSK, FEC_8_9, 13000, 16000}, + { QPSK, FEC_9_10, 13500, 16500}, + { PSK_8, FEC_2_3, 14500, 17500}, + { PSK_8, FEC_3_4, 16000, 19000}, + { PSK_8, FEC_5_6, 17500, 20500}, + { PSK_8, FEC_8_9, 19000, 22000}, +}; + +static const struct vidtv_demod_cnr_to_qual_s vidtv_demod_t_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db*/ + { QPSK, FEC_1_2, 4100, 5900}, + { QPSK, FEC_2_3, 6100, 9600}, + { QPSK, FEC_3_4, 7200, 12400}, + { QPSK, FEC_5_6, 8500, 15600}, + { QPSK, FEC_7_8, 9200, 17500}, + { QAM_16, FEC_1_2, 9800, 11800}, + { QAM_16, FEC_2_3, 12100, 15300}, + { QAM_16, FEC_3_4, 13400, 18100}, + { QAM_16, FEC_5_6, 14800, 21300}, + { QAM_16, FEC_7_8, 15700, 23600}, + { QAM_64, FEC_1_2, 14000, 16000}, + { QAM_64, FEC_2_3, 19900, 25400}, + { QAM_64, FEC_3_4, 24900, 27900}, + { QAM_64, FEC_5_6, 21300, 23300}, + { QAM_64, FEC_7_8, 22000, 24000}, +}; + +static const struct vidtv_demod_cnr_to_qual_s *vidtv_match_cnr_s(struct dvb_frontend *fe) +{ + const struct vidtv_demod_cnr_to_qual_s *cnr2qual = NULL; + struct device *dev = fe->dvb->device; + struct dtv_frontend_properties *c; + u32 array_size = 0; + u32 i; + + c = &fe->dtv_property_cache; + + switch (c->delivery_system) { + case SYS_DVBT: + case SYS_DVBT2: + cnr2qual = vidtv_demod_t_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_demod_t_cnr_2_qual); + break; + + case SYS_DVBS: + cnr2qual = vidtv_demod_s_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_demod_s_cnr_2_qual); + break; + + case SYS_DVBS2: + cnr2qual = vidtv_demod_s2_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_demod_s2_cnr_2_qual); + break; + + case SYS_DVBC_ANNEX_A: + cnr2qual = vidtv_demod_c_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_demod_c_cnr_2_qual); + break; + + default: + dev_warn_ratelimited(dev, + "%s: unsupported delivery system: %u\n", + __func__, + c->delivery_system); + break; + } + + for (i = 0; i < array_size; i++) + if (cnr2qual[i].modulation == c->modulation && + cnr2qual[i].fec == c->fec_inner) + return &cnr2qual[i]; + + return NULL; /* not found */ +} + +static void vidtv_clean_stats(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + + /* Fill the length of each status counter */ + + /* Signal is always available */ + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_DECIBEL; + c->strength.stat[0].svalue = 0; + + /* Usually available only after Viterbi lock */ + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->cnr.stat[0].svalue = 0; + c->cnr.len = 1; + + /* Those depends on full lock */ + c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->pre_bit_error.stat[0].uvalue = 0; + c->pre_bit_error.len = 1; + c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->pre_bit_count.stat[0].uvalue = 0; + c->pre_bit_count.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_error.stat[0].uvalue = 0; + c->post_bit_error.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.stat[0].uvalue = 0; + c->post_bit_count.len = 1; + c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->block_error.stat[0].uvalue = 0; + c->block_error.len = 1; + c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->block_count.stat[0].uvalue = 0; + c->block_count.len = 1; +} + +static void vidtv_demod_update_stats(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct vidtv_demod_state *state = fe->demodulator_priv; + u32 scale; + + if (state->status & FE_HAS_LOCK) { + scale = FE_SCALE_COUNTER; + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + } else { + scale = FE_SCALE_NOT_AVAILABLE; + c->cnr.stat[0].scale = scale; + } + + c->pre_bit_error.stat[0].scale = scale; + c->pre_bit_count.stat[0].scale = scale; + c->post_bit_error.stat[0].scale = scale; + c->post_bit_count.stat[0].scale = scale; + c->block_error.stat[0].scale = scale; + c->block_count.stat[0].scale = scale; + + /* + * Add a 0.5% of randomness at the signal strength and CNR, + * and make them different, as we want to have something closer + * to a real case scenario. + * + * Also, usually, signal strength is a negative number in dBm. + */ + c->strength.stat[0].svalue = state->tuner_cnr; + c->strength.stat[0].svalue -= prandom_u32_max(state->tuner_cnr / 50); + c->strength.stat[0].svalue -= 68000; /* Adjust to a better range */ + + c->cnr.stat[0].svalue = state->tuner_cnr; + c->cnr.stat[0].svalue -= prandom_u32_max(state->tuner_cnr / 50); +} + +static int vidtv_demod_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct vidtv_demod_state *state = fe->demodulator_priv; + const struct vidtv_demod_cnr_to_qual_s *cnr2qual = NULL; + struct vidtv_demod_config *config = &state->config; + u16 snr = 0; + + /* Simulate random lost of signal due to a bad-tuned channel */ + cnr2qual = vidtv_match_cnr_s(&state->frontend); + + if (cnr2qual && state->tuner_cnr < cnr2qual->cnr_good && + state->frontend.ops.tuner_ops.get_rf_strength) { + state->frontend.ops.tuner_ops.get_rf_strength(&state->frontend, + &snr); + + if (snr < cnr2qual->cnr_ok) { + /* eventually lose the TS lock */ + if (prandom_u32_max(100) < config->drop_tslock_prob_on_low_snr) + state->status = 0; + } else { + /* recover if the signal improves */ + if (prandom_u32_max(100) < + config->recover_tslock_prob_on_good_snr) + state->status = FE_HAS_SIGNAL | + FE_HAS_CARRIER | + FE_HAS_VITERBI | + FE_HAS_SYNC | + FE_HAS_LOCK; + } + } + + vidtv_demod_update_stats(&state->frontend); + + *status = state->status; + + return 0; +} + +static int vidtv_demod_read_signal_strength(struct dvb_frontend *fe, + u16 *strength) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + + *strength = c->strength.stat[0].uvalue; + + return 0; +} + +/* + * NOTE: + * This is implemented here just to be used as an example for real + * demod drivers. + * + * Should only be implemented if it actually reads something from the hardware. + * Also, it should check for the locks, in order to avoid report wrong data + * to userspace. + */ +static int vidtv_demod_get_frontend(struct dvb_frontend *fe, + struct dtv_frontend_properties *p) +{ + return 0; +} + +static int vidtv_demod_set_frontend(struct dvb_frontend *fe) +{ + struct vidtv_demod_state *state = fe->demodulator_priv; + u32 tuner_status = 0; + int ret; + + if (!fe->ops.tuner_ops.set_params) + return 0; + + fe->ops.tuner_ops.set_params(fe); + + /* store the CNR returned by the tuner */ + ret = fe->ops.tuner_ops.get_rf_strength(fe, &state->tuner_cnr); + if (ret < 0) + return ret; + + fe->ops.tuner_ops.get_status(fe, &tuner_status); + state->status = (state->tuner_cnr > 0) ? FE_HAS_SIGNAL | + FE_HAS_CARRIER | + FE_HAS_VITERBI | + FE_HAS_SYNC | + FE_HAS_LOCK : + 0; + + vidtv_demod_update_stats(fe); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + return 0; +} + +/* + * NOTE: + * This is implemented here just to be used as an example for real + * demod drivers. + * + * Should only be implemented if the demod has support for DVB-S or DVB-S2 + */ +static int vidtv_demod_set_tone(struct dvb_frontend *fe, + enum fe_sec_tone_mode tone) +{ + return 0; +} + +/* + * NOTE: + * This is implemented here just to be used as an example for real + * demod drivers. + * + * Should only be implemented if the demod has support for DVB-S or DVB-S2 + */ +static int vidtv_demod_set_voltage(struct dvb_frontend *fe, + enum fe_sec_voltage voltage) +{ + return 0; +} + +/* + * NOTE: + * This is implemented here just to be used as an example for real + * demod drivers. + * + * Should only be implemented if the demod has support for DVB-S or DVB-S2 + */ +static int vidtv_send_diseqc_msg(struct dvb_frontend *fe, + struct dvb_diseqc_master_cmd *cmd) +{ + return 0; +} + +/* + * NOTE: + * This is implemented here just to be used as an example for real + * demod drivers. + * + * Should only be implemented if the demod has support for DVB-S or DVB-S2 + */ +static int vidtv_diseqc_send_burst(struct dvb_frontend *fe, + enum fe_sec_mini_cmd burst) +{ + return 0; +} + +static void vidtv_demod_release(struct dvb_frontend *fe) +{ + struct vidtv_demod_state *state = fe->demodulator_priv; + + kfree(state); +} + +static const struct dvb_frontend_ops vidtv_demod_ops = { + .delsys = { + SYS_DVBT, + SYS_DVBT2, + SYS_DVBC_ANNEX_A, + SYS_DVBS, + SYS_DVBS2, + }, + + .info = { + .name = "Dummy demod for DVB-T/T2/C/S/S2", + .frequency_min_hz = 51 * MHz, + .frequency_max_hz = 2150 * MHz, + .frequency_stepsize_hz = 62500, + .frequency_tolerance_hz = 29500 * kHz, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + + .caps = FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_4_5 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_6_7 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_8_9 | + FE_CAN_QAM_16 | + FE_CAN_QAM_64 | + FE_CAN_QAM_32 | + FE_CAN_QAM_128 | + FE_CAN_QAM_256 | + FE_CAN_QAM_AUTO | + FE_CAN_QPSK | + FE_CAN_FEC_AUTO | + FE_CAN_INVERSION_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = vidtv_demod_release, + + .set_frontend = vidtv_demod_set_frontend, + .get_frontend = vidtv_demod_get_frontend, + + .read_status = vidtv_demod_read_status, + .read_signal_strength = vidtv_demod_read_signal_strength, + + /* For DVB-S/S2 */ + .set_voltage = vidtv_demod_set_voltage, + .set_tone = vidtv_demod_set_tone, + .diseqc_send_master_cmd = vidtv_send_diseqc_msg, + .diseqc_send_burst = vidtv_diseqc_send_burst, + +}; + +static const struct i2c_device_id vidtv_demod_i2c_id_table[] = { + {"dvb_vidtv_demod", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, vidtv_demod_i2c_id_table); + +static int vidtv_demod_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct vidtv_tuner_config *config = client->dev.platform_data; + struct vidtv_demod_state *state; + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, + &vidtv_demod_ops, + sizeof(struct dvb_frontend_ops)); + + memcpy(&state->config, config, sizeof(state->config)); + + state->frontend.demodulator_priv = state; + i2c_set_clientdata(client, state); + + vidtv_clean_stats(&state->frontend); + + return 0; +} + +static void vidtv_demod_i2c_remove(struct i2c_client *client) +{ + struct vidtv_demod_state *state = i2c_get_clientdata(client); + + kfree(state); +} + +static struct i2c_driver vidtv_demod_i2c_driver = { + .driver = { + .name = "dvb_vidtv_demod", + .suppress_bind_attrs = true, + }, + .probe = vidtv_demod_i2c_probe, + .remove = vidtv_demod_i2c_remove, + .id_table = vidtv_demod_i2c_id_table, +}; + +module_i2c_driver(vidtv_demod_i2c_driver); + +MODULE_DESCRIPTION("Virtual DVB Demodulator Driver"); +MODULE_AUTHOR("Daniel W. S. Almeida"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/test-drivers/vidtv/vidtv_demod.h b/drivers/media/test-drivers/vidtv/vidtv_demod.h new file mode 100644 index 000000000..2b8404661 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_demod.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * The Virtual DTV test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + * Based on the example driver written by Emard <emard@softhome.net> + */ + +#ifndef VIDTV_DEMOD_H +#define VIDTV_DEMOD_H + +#include <linux/dvb/frontend.h> + +#include <media/dvb_frontend.h> + +/** + * struct vidtv_demod_cnr_to_qual_s - Map CNR values to a given combination of + * modulation and fec_inner + * @modulation: see enum fe_modulation + * @fec: see enum fe_fec_rate + * @cnr_ok: S/N threshold to consider the signal as OK. Below that, there's + * a chance of losing sync. + * @cnr_good: S/N threshold to consider the signal strong. + * + * This struct matches values for 'good' and 'ok' CNRs given the combination + * of modulation and fec_inner in use. We might simulate some noise if the + * signal quality is not too good. + * + * The values were taken from libdvbv5. + */ +struct vidtv_demod_cnr_to_qual_s { + u32 modulation; + u32 fec; + u32 cnr_ok; + u32 cnr_good; +}; + +/** + * struct vidtv_demod_config - Configuration used to init the demod + * @drop_tslock_prob_on_low_snr: probability of losing the lock due to low snr + * @recover_tslock_prob_on_good_snr: probability of recovering when the signal + * improves + * + * The configuration used to init the demodulator module, usually filled + * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the + * demodulator module is probed. + */ +struct vidtv_demod_config { + u8 drop_tslock_prob_on_low_snr; + u8 recover_tslock_prob_on_good_snr; +}; + +/** + * struct vidtv_demod_state - The demodulator state + * @frontend: The frontend structure allocated by the demod. + * @config: The config used to init the demod. + * @status: the demod status. + * @tuner_cnr: current S/N ratio for the signal carrier + */ +struct vidtv_demod_state { + struct dvb_frontend frontend; + struct vidtv_demod_config config; + enum fe_status status; + u16 tuner_cnr; +}; +#endif // VIDTV_DEMOD_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_encoder.h b/drivers/media/test-drivers/vidtv/vidtv_encoder.h new file mode 100644 index 000000000..50e3cf4eb --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_encoder.h @@ -0,0 +1,165 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains a generic encoder type that can provide data for a stream + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_ENCODER_H +#define VIDTV_ENCODER_H + +#include <linux/types.h> + +enum vidtv_encoder_id { + /* add IDs here when implementing new encoders */ + S302M, +}; + +struct vidtv_access_unit { + u32 num_samples; + u64 pts; + u64 dts; + u32 nbytes; + u32 offset; + struct vidtv_access_unit *next; +}; + +/* Some musical notes, used by a tone generator. Values are in Hz */ +enum musical_notes { + NOTE_SILENT = 0, + + NOTE_C_2 = 65, + NOTE_CS_2 = 69, + NOTE_D_2 = 73, + NOTE_DS_2 = 78, + NOTE_E_2 = 82, + NOTE_F_2 = 87, + NOTE_FS_2 = 93, + NOTE_G_2 = 98, + NOTE_GS_2 = 104, + NOTE_A_2 = 110, + NOTE_AS_2 = 117, + NOTE_B_2 = 123, + NOTE_C_3 = 131, + NOTE_CS_3 = 139, + NOTE_D_3 = 147, + NOTE_DS_3 = 156, + NOTE_E_3 = 165, + NOTE_F_3 = 175, + NOTE_FS_3 = 185, + NOTE_G_3 = 196, + NOTE_GS_3 = 208, + NOTE_A_3 = 220, + NOTE_AS_3 = 233, + NOTE_B_3 = 247, + NOTE_C_4 = 262, + NOTE_CS_4 = 277, + NOTE_D_4 = 294, + NOTE_DS_4 = 311, + NOTE_E_4 = 330, + NOTE_F_4 = 349, + NOTE_FS_4 = 370, + NOTE_G_4 = 392, + NOTE_GS_4 = 415, + NOTE_A_4 = 440, + NOTE_AS_4 = 466, + NOTE_B_4 = 494, + NOTE_C_5 = 523, + NOTE_CS_5 = 554, + NOTE_D_5 = 587, + NOTE_DS_5 = 622, + NOTE_E_5 = 659, + NOTE_F_5 = 698, + NOTE_FS_5 = 740, + NOTE_G_5 = 784, + NOTE_GS_5 = 831, + NOTE_A_5 = 880, + NOTE_AS_5 = 932, + NOTE_B_5 = 988, + NOTE_C_6 = 1047, + NOTE_CS_6 = 1109, + NOTE_D_6 = 1175, + NOTE_DS_6 = 1245, + NOTE_E_6 = 1319, + NOTE_F_6 = 1397, + NOTE_FS_6 = 1480, + NOTE_G_6 = 1568, + NOTE_GS_6 = 1661, + NOTE_A_6 = 1760, + NOTE_AS_6 = 1865, + NOTE_B_6 = 1976, + NOTE_C_7 = 2093 +}; + +/** + * struct vidtv_encoder - A generic encoder type. + * @id: So we can cast to a concrete implementation when needed. + * @name: Usually the same as the stream name. + * @encoder_buf: The encoder internal buffer for the access units. + * @encoder_buf_sz: The encoder buffer size, in bytes + * @encoder_buf_offset: Our byte position in the encoder buffer. + * @sample_count: How many samples we have encoded in total. + * @access_units: encoder payload units, used for clock references + * @src_buf: The source of raw data to be encoded, encoder might set a + * default if null. + * @src_buf_sz: size of @src_buf. + * @src_buf_offset: Our position in the source buffer. + * @is_video_encoder: Whether this a video encoder (as opposed to audio) + * @ctx: Encoder-specific state. + * @stream_id: Examples: Audio streams (0xc0-0xdf), Video streams + * (0xe0-0xef). + * @es_pid: The TS PID to use for the elementary stream in this encoder. + * @encode: Prepare enough AUs for the given amount of time. + * @clear: Clear the encoder output. + * @sync: Attempt to synchronize with this encoder. + * @sampling_rate_hz: The sampling rate (or fps, if video) used. + * @last_sample_cb: Called when the encoder runs out of data.This is + * so the source can read data in a + * piecemeal fashion instead of having to + * provide it all at once. + * @destroy: Destroy this encoder, freeing allocated resources. + * @next: Next in the chain + */ +struct vidtv_encoder { + enum vidtv_encoder_id id; + char *name; + + u8 *encoder_buf; + u32 encoder_buf_sz; + u32 encoder_buf_offset; + + u64 sample_count; + + struct vidtv_access_unit *access_units; + + void *src_buf; + u32 src_buf_sz; + u32 src_buf_offset; + + bool is_video_encoder; + void *ctx; + + __be16 stream_id; + + __be16 es_pid; + + void *(*encode)(struct vidtv_encoder *e); + + u32 (*clear)(struct vidtv_encoder *e); + + struct vidtv_encoder *sync; + + u32 sampling_rate_hz; + + void (*last_sample_cb)(u32 sample_no); + + void (*destroy)(struct vidtv_encoder *e); + + struct vidtv_encoder *next; +}; + +#endif /* VIDTV_ENCODER_H */ diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.c b/drivers/media/test-drivers/vidtv/vidtv_mux.c new file mode 100644 index 000000000..f99878eff --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_mux.c @@ -0,0 +1,551 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the multiplexer logic for TS packets from different + * elementary streams + * + * Loosely based on libavcodec/mpegtsenc.c + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#include <linux/delay.h> +#include <linux/dev_printk.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/math64.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/vmalloc.h> + +#include "vidtv_channel.h" +#include "vidtv_common.h" +#include "vidtv_encoder.h" +#include "vidtv_mux.h" +#include "vidtv_pes.h" +#include "vidtv_psi.h" +#include "vidtv_ts.h" + +static struct vidtv_mux_pid_ctx +*vidtv_mux_get_pid_ctx(struct vidtv_mux *m, u16 pid) +{ + struct vidtv_mux_pid_ctx *ctx; + + hash_for_each_possible(m->pid_ctx, ctx, h, pid) + if (ctx->pid == pid) + return ctx; + return NULL; +} + +static struct vidtv_mux_pid_ctx +*vidtv_mux_create_pid_ctx_once(struct vidtv_mux *m, u16 pid) +{ + struct vidtv_mux_pid_ctx *ctx; + + ctx = vidtv_mux_get_pid_ctx(m, pid); + if (ctx) + return ctx; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return NULL; + + ctx->pid = pid; + ctx->cc = 0; + hash_add(m->pid_ctx, &ctx->h, pid); + + return ctx; +} + +static void vidtv_mux_pid_ctx_destroy(struct vidtv_mux *m) +{ + struct vidtv_mux_pid_ctx *ctx; + struct hlist_node *tmp; + int bkt; + + hash_for_each_safe(m->pid_ctx, bkt, tmp, ctx, h) { + hash_del(&ctx->h); + kfree(ctx); + } +} + +static int vidtv_mux_pid_ctx_init(struct vidtv_mux *m) +{ + struct vidtv_psi_table_pat_program *p = m->si.pat->program; + u16 pid; + + hash_init(m->pid_ctx); + /* push the pcr pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, m->pcr_pid)) + return -ENOMEM; + /* push the NULL packet pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, TS_NULL_PACKET_PID)) + goto free; + /* push the PAT pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_PAT_PID)) + goto free; + /* push the SDT pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_SDT_PID)) + goto free; + /* push the NIT pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_NIT_PID)) + goto free; + /* push the EIT pid ctx */ + if (!vidtv_mux_create_pid_ctx_once(m, VIDTV_EIT_PID)) + goto free; + + /* add a ctx for all PMT sections */ + while (p) { + pid = vidtv_psi_get_pat_program_pid(p); + vidtv_mux_create_pid_ctx_once(m, pid); + p = p->next; + } + + return 0; + +free: + vidtv_mux_pid_ctx_destroy(m); + return -ENOMEM; +} + +static void vidtv_mux_update_clk(struct vidtv_mux *m) +{ + /* call this at every thread iteration */ + u64 elapsed_time; + + m->timing.past_jiffies = m->timing.current_jiffies; + m->timing.current_jiffies = get_jiffies_64(); + + elapsed_time = jiffies_to_usecs(m->timing.current_jiffies - + m->timing.past_jiffies); + + /* update the 27Mhz clock proportionally to the elapsed time */ + m->timing.clk += (CLOCK_UNIT_27MHZ / USEC_PER_SEC) * elapsed_time; +} + +static u32 vidtv_mux_push_si(struct vidtv_mux *m) +{ + struct vidtv_psi_pat_write_args pat_args = { + .buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .pat = m->si.pat, + }; + struct vidtv_psi_pmt_write_args pmt_args = { + .buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .pcr_pid = m->pcr_pid, + }; + struct vidtv_psi_sdt_write_args sdt_args = { + .buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .sdt = m->si.sdt, + }; + struct vidtv_psi_nit_write_args nit_args = { + .buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .nit = m->si.nit, + + }; + struct vidtv_psi_eit_write_args eit_args = { + .buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .eit = m->si.eit, + }; + u32 initial_offset = m->mux_buf_offset; + struct vidtv_mux_pid_ctx *pat_ctx; + struct vidtv_mux_pid_ctx *pmt_ctx; + struct vidtv_mux_pid_ctx *sdt_ctx; + struct vidtv_mux_pid_ctx *nit_ctx; + struct vidtv_mux_pid_ctx *eit_ctx; + u32 nbytes; + u16 pmt_pid; + u32 i; + + pat_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_PAT_PID); + sdt_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_SDT_PID); + nit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_NIT_PID); + eit_ctx = vidtv_mux_get_pid_ctx(m, VIDTV_EIT_PID); + + pat_args.offset = m->mux_buf_offset; + pat_args.continuity_counter = &pat_ctx->cc; + + m->mux_buf_offset += vidtv_psi_pat_write_into(&pat_args); + + for (i = 0; i < m->si.pat->num_pmt; ++i) { + pmt_pid = vidtv_psi_pmt_get_pid(m->si.pmt_secs[i], + m->si.pat); + + if (pmt_pid > TS_LAST_VALID_PID) { + dev_warn_ratelimited(m->dev, + "PID: %d not found\n", pmt_pid); + continue; + } + + pmt_ctx = vidtv_mux_get_pid_ctx(m, pmt_pid); + + pmt_args.offset = m->mux_buf_offset; + pmt_args.pmt = m->si.pmt_secs[i]; + pmt_args.pid = pmt_pid; + pmt_args.continuity_counter = &pmt_ctx->cc; + + /* write each section into buffer */ + m->mux_buf_offset += vidtv_psi_pmt_write_into(&pmt_args); + } + + sdt_args.offset = m->mux_buf_offset; + sdt_args.continuity_counter = &sdt_ctx->cc; + + m->mux_buf_offset += vidtv_psi_sdt_write_into(&sdt_args); + + nit_args.offset = m->mux_buf_offset; + nit_args.continuity_counter = &nit_ctx->cc; + + m->mux_buf_offset += vidtv_psi_nit_write_into(&nit_args); + + eit_args.offset = m->mux_buf_offset; + eit_args.continuity_counter = &eit_ctx->cc; + + m->mux_buf_offset += vidtv_psi_eit_write_into(&eit_args); + + nbytes = m->mux_buf_offset - initial_offset; + + m->num_streamed_si++; + + return nbytes; +} + +static u32 vidtv_mux_push_pcr(struct vidtv_mux *m) +{ + struct pcr_write_args args = {}; + struct vidtv_mux_pid_ctx *ctx; + u32 nbytes = 0; + + ctx = vidtv_mux_get_pid_ctx(m, m->pcr_pid); + args.dest_buf = m->mux_buf; + args.pid = m->pcr_pid; + args.buf_sz = m->mux_buf_sz; + args.continuity_counter = &ctx->cc; + + /* the 27Mhz clock will feed both parts of the PCR bitfield */ + args.pcr = m->timing.clk; + + nbytes += vidtv_ts_pcr_write_into(args); + m->mux_buf_offset += nbytes; + + m->num_streamed_pcr++; + + return nbytes; +} + +static bool vidtv_mux_should_push_pcr(struct vidtv_mux *m) +{ + u64 next_pcr_at; + + if (m->num_streamed_pcr == 0) + return true; + + next_pcr_at = m->timing.start_jiffies + + usecs_to_jiffies(m->num_streamed_pcr * + m->timing.pcr_period_usecs); + + return time_after64(m->timing.current_jiffies, next_pcr_at); +} + +static bool vidtv_mux_should_push_si(struct vidtv_mux *m) +{ + u64 next_si_at; + + if (m->num_streamed_si == 0) + return true; + + next_si_at = m->timing.start_jiffies + + usecs_to_jiffies(m->num_streamed_si * + m->timing.si_period_usecs); + + return time_after64(m->timing.current_jiffies, next_si_at); +} + +static u32 vidtv_mux_packetize_access_units(struct vidtv_mux *m, + struct vidtv_encoder *e) +{ + struct pes_write_args args = { + .dest_buf = m->mux_buf, + .dest_buf_sz = m->mux_buf_sz, + .pid = be16_to_cpu(e->es_pid), + .encoder_id = e->id, + .stream_id = be16_to_cpu(e->stream_id), + .send_pts = true, /* forbidden value '01'... */ + .send_dts = false, /* ...for PTS_DTS flags */ + }; + struct vidtv_access_unit *au = e->access_units; + u32 initial_offset = m->mux_buf_offset; + struct vidtv_mux_pid_ctx *pid_ctx; + u32 nbytes = 0; + u8 *buf = NULL; + + /* see SMPTE 302M clause 6.4 */ + if (args.encoder_id == S302M) { + args.send_dts = false; + args.send_pts = true; + } + + pid_ctx = vidtv_mux_create_pid_ctx_once(m, be16_to_cpu(e->es_pid)); + args.continuity_counter = &pid_ctx->cc; + + while (au) { + buf = e->encoder_buf + au->offset; + args.from = buf; + args.access_unit_len = au->nbytes; + args.dest_offset = m->mux_buf_offset; + args.pts = au->pts; + args.pcr = m->timing.clk; + + m->mux_buf_offset += vidtv_pes_write_into(&args); + + au = au->next; + } + + /* + * clear the encoder state once the ES data has been written to the mux + * buffer + */ + e->clear(e); + + nbytes = m->mux_buf_offset - initial_offset; + return nbytes; +} + +static u32 vidtv_mux_poll_encoders(struct vidtv_mux *m) +{ + struct vidtv_channel *cur_chnl = m->channels; + struct vidtv_encoder *e = NULL; + u32 nbytes = 0; + u32 au_nbytes; + + while (cur_chnl) { + e = cur_chnl->encoders; + + while (e) { + e->encode(e); + /* get the TS packets into the mux buffer */ + au_nbytes = vidtv_mux_packetize_access_units(m, e); + nbytes += au_nbytes; + m->mux_buf_offset += au_nbytes; + /* grab next encoder */ + e = e->next; + } + + /* grab the next channel */ + cur_chnl = cur_chnl->next; + } + + return nbytes; +} + +static u32 vidtv_mux_pad_with_nulls(struct vidtv_mux *m, u32 npkts) +{ + struct null_packet_write_args args = { + .dest_buf = m->mux_buf, + .buf_sz = m->mux_buf_sz, + .dest_offset = m->mux_buf_offset, + }; + u32 initial_offset = m->mux_buf_offset; + struct vidtv_mux_pid_ctx *ctx; + u32 nbytes; + u32 i; + + ctx = vidtv_mux_get_pid_ctx(m, TS_NULL_PACKET_PID); + + args.continuity_counter = &ctx->cc; + + for (i = 0; i < npkts; ++i) { + m->mux_buf_offset += vidtv_ts_null_write_into(args); + args.dest_offset = m->mux_buf_offset; + } + + nbytes = m->mux_buf_offset - initial_offset; + + /* sanity check */ + if (nbytes != npkts * TS_PACKET_LEN) + dev_err_ratelimited(m->dev, "%d != %d\n", + nbytes, npkts * TS_PACKET_LEN); + + return nbytes; +} + +static void vidtv_mux_clear(struct vidtv_mux *m) +{ + /* clear the packets currently in the mux */ + memset(m->mux_buf, 0, m->mux_buf_sz * sizeof(*m->mux_buf)); + /* point to the beginning of the buffer again */ + m->mux_buf_offset = 0; +} + +#define ERR_RATE 10000000 +static void vidtv_mux_tick(struct work_struct *work) +{ + struct vidtv_mux *m = container_of(work, + struct vidtv_mux, + mpeg_thread); + struct dtv_frontend_properties *c = &m->fe->dtv_property_cache; + u32 tot_bits = 0; + u32 nbytes; + u32 npkts; + + while (m->streaming) { + nbytes = 0; + + vidtv_mux_update_clk(m); + + if (vidtv_mux_should_push_pcr(m)) + nbytes += vidtv_mux_push_pcr(m); + + if (vidtv_mux_should_push_si(m)) + nbytes += vidtv_mux_push_si(m); + + nbytes += vidtv_mux_poll_encoders(m); + nbytes += vidtv_mux_pad_with_nulls(m, 256); + + npkts = nbytes / TS_PACKET_LEN; + + /* if the buffer is not aligned there is a bug somewhere */ + if (nbytes % TS_PACKET_LEN) + dev_err_ratelimited(m->dev, "Misaligned buffer\n"); + + if (m->on_new_packets_available_cb) + m->on_new_packets_available_cb(m->priv, + m->mux_buf, + npkts); + + vidtv_mux_clear(m); + + /* + * Update bytes and packet counts at DVBv5 stats + * + * For now, both pre and post bit counts are identical, + * but post BER count can be lower than pre BER, if the error + * correction logic discards packages. + */ + c->pre_bit_count.stat[0].uvalue = nbytes * 8; + c->post_bit_count.stat[0].uvalue = nbytes * 8; + c->block_count.stat[0].uvalue += npkts; + + /* + * Even without any visible errors for the user, the pre-BER + * stats usually have an error range up to 1E-6. So, + * add some random error increment count to it. + * + * Please notice that this is a poor guy's implementation, + * as it will produce one corrected bit error every time + * ceil(total bytes / ERR_RATE) is incremented, without + * any sort of (pseudo-)randomness. + */ + tot_bits += nbytes * 8; + if (tot_bits > ERR_RATE) { + c->pre_bit_error.stat[0].uvalue++; + tot_bits -= ERR_RATE; + } + + usleep_range(VIDTV_SLEEP_USECS, VIDTV_MAX_SLEEP_USECS); + } +} + +void vidtv_mux_start_thread(struct vidtv_mux *m) +{ + if (m->streaming) { + dev_warn_ratelimited(m->dev, "Already streaming. Skipping.\n"); + return; + } + + m->streaming = true; + m->timing.start_jiffies = get_jiffies_64(); + schedule_work(&m->mpeg_thread); +} + +void vidtv_mux_stop_thread(struct vidtv_mux *m) +{ + if (m->streaming) { + m->streaming = false; /* thread will quit */ + cancel_work_sync(&m->mpeg_thread); + } +} + +struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe, + struct device *dev, + struct vidtv_mux_init_args *args) +{ + struct vidtv_mux *m; + + m = kzalloc(sizeof(*m), GFP_KERNEL); + if (!m) + return NULL; + + m->dev = dev; + m->fe = fe; + m->timing.pcr_period_usecs = args->pcr_period_usecs; + m->timing.si_period_usecs = args->si_period_usecs; + + m->mux_rate_kbytes_sec = args->mux_rate_kbytes_sec; + + m->on_new_packets_available_cb = args->on_new_packets_available_cb; + + m->mux_buf = vzalloc(args->mux_buf_sz); + if (!m->mux_buf) + goto free_mux; + + m->mux_buf_sz = args->mux_buf_sz; + + m->pcr_pid = args->pcr_pid; + m->transport_stream_id = args->transport_stream_id; + m->priv = args->priv; + m->network_id = args->network_id; + m->network_name = kstrdup(args->network_name, GFP_KERNEL); + if (!m->network_name) + goto free_mux_buf; + + m->timing.current_jiffies = get_jiffies_64(); + + if (args->channels) + m->channels = args->channels; + else + if (vidtv_channels_init(m) < 0) + goto free_mux_network_name; + + /* will alloc data for pmt_sections after initializing pat */ + if (vidtv_channel_si_init(m) < 0) + goto free_channels; + + INIT_WORK(&m->mpeg_thread, vidtv_mux_tick); + + if (vidtv_mux_pid_ctx_init(m) < 0) + goto free_channel_si; + + return m; + +free_channel_si: + vidtv_channel_si_destroy(m); +free_channels: + vidtv_channels_destroy(m); +free_mux_network_name: + kfree(m->network_name); +free_mux_buf: + vfree(m->mux_buf); +free_mux: + kfree(m); + return NULL; +} + +void vidtv_mux_destroy(struct vidtv_mux *m) +{ + vidtv_mux_stop_thread(m); + vidtv_mux_pid_ctx_destroy(m); + vidtv_channel_si_destroy(m); + vidtv_channels_destroy(m); + kfree(m->network_name); + vfree(m->mux_buf); + kfree(m); +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_mux.h b/drivers/media/test-drivers/vidtv/vidtv_mux.h new file mode 100644 index 000000000..ad82eb72b --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_mux.h @@ -0,0 +1,182 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the muxer logic for TS packets from different + * elementary streams. + * + * Loosely based on libavcodec/mpegtsenc.c + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_MUX_H +#define VIDTV_MUX_H + +#include <linux/hashtable.h> +#include <linux/types.h> +#include <linux/workqueue.h> + +#include <media/dvb_frontend.h> + +#include "vidtv_psi.h" + +/** + * struct vidtv_mux_timing - Timing related information + * + * This is used to decide when PCR or PSI packets should be sent. This will also + * provide storage for the clock, which is used to compute the value for the PCR. + * + * @start_jiffies: The value of 'jiffies' when we started the mux thread. + * @current_jiffies: The value of 'jiffies' for the current iteration. + * @past_jiffies: The value of 'jiffies' for the past iteration. + * @clk: A 27Mhz clock from which we will drive the PCR. Updated proportionally + * on every iteration. + * @pcr_period_usecs: How often we should send PCR packets. + * @si_period_usecs: How often we should send PSI packets. + */ +struct vidtv_mux_timing { + u64 start_jiffies; + u64 current_jiffies; + u64 past_jiffies; + + u64 clk; + + u64 pcr_period_usecs; + u64 si_period_usecs; +}; + +/** + * struct vidtv_mux_si - Store the PSI context. + * + * This is used to store the PAT, PMT sections and SDT in use by the muxer. + * + * The muxer acquire these by looking into the hardcoded channels in + * vidtv_channel and then periodically sends the TS packets for them> + * + * @pat: The PAT in use by the muxer. + * @pmt_secs: The PMT sections in use by the muxer. One for each program in the PAT. + * @sdt: The SDT in use by the muxer. + * @nit: The NIT in use by the muxer. + * @eit: the EIT in use by the muxer. + */ +struct vidtv_mux_si { + /* the SI tables */ + struct vidtv_psi_table_pat *pat; + struct vidtv_psi_table_pmt **pmt_secs; /* the PMT sections */ + struct vidtv_psi_table_sdt *sdt; + struct vidtv_psi_table_nit *nit; + struct vidtv_psi_table_eit *eit; +}; + +/** + * struct vidtv_mux_pid_ctx - Store the context for a given TS PID. + * @pid: The TS PID. + * @cc: The continuity counter for this PID. It is incremented on every TS + * pack and it will wrap around at 0xf0. If the decoder notices a sudden jump in + * this counter this will trigger a discontinuity state. + * @h: This is embedded in a hash table, mapping pid -> vidtv_mux_pid_ctx + */ +struct vidtv_mux_pid_ctx { + u16 pid; + u8 cc; /* continuity counter */ + struct hlist_node h; +}; + +/** + * struct vidtv_mux - A muxer abstraction loosely based in libavcodec/mpegtsenc.c + * @fe: The frontend structure allocated by the muxer. + * @dev: pointer to struct device. + * @timing: Keeps track of timing related information. + * @mux_rate_kbytes_sec: The bit rate for the TS, in kbytes. + * @pid_ctx: A hash table to keep track of per-PID metadata. + * @on_new_packets_available_cb: A callback to inform of new TS packets ready. + * @mux_buf: A pointer to a buffer for this muxer. TS packets are stored there + * and then passed on to the bridge driver. + * @mux_buf_sz: The size for 'mux_buf'. + * @mux_buf_offset: The current offset into 'mux_buf'. + * @channels: The channels associated with this muxer. + * @si: Keeps track of the PSI context. + * @num_streamed_pcr: Number of PCR packets streamed. + * @num_streamed_si: The number of PSI packets streamed. + * @mpeg_thread: Thread responsible for the muxer loop. + * @streaming: whether 'mpeg_thread' is running. + * @pcr_pid: The TS PID used for the PSI packets. All channels will share the + * same PCR. + * @transport_stream_id: The transport stream ID + * @network_id: The network ID + * @network_name: The network name + * @priv: Private data. + */ +struct vidtv_mux { + struct dvb_frontend *fe; + struct device *dev; + + struct vidtv_mux_timing timing; + + u32 mux_rate_kbytes_sec; + + DECLARE_HASHTABLE(pid_ctx, 3); + + void (*on_new_packets_available_cb)(void *priv, u8 *buf, u32 npackets); + + u8 *mux_buf; + u32 mux_buf_sz; + u32 mux_buf_offset; + + struct vidtv_channel *channels; + + struct vidtv_mux_si si; + u64 num_streamed_pcr; + u64 num_streamed_si; + + struct work_struct mpeg_thread; + bool streaming; + + u16 pcr_pid; + u16 transport_stream_id; + u16 network_id; + char *network_name; + void *priv; +}; + +/** + * struct vidtv_mux_init_args - Arguments used to inix the muxer. + * @mux_rate_kbytes_sec: The bit rate for the TS, in kbytes. + * @on_new_packets_available_cb: A callback to inform of new TS packets ready. + * @mux_buf_sz: The size for 'mux_buf'. + * @pcr_period_usecs: How often we should send PCR packets. + * @si_period_usecs: How often we should send PSI packets. + * @pcr_pid: The TS PID used for the PSI packets. All channels will share the + * same PCR. + * @transport_stream_id: The transport stream ID + * @channels: an optional list of channels to use + * @network_id: The network ID + * @network_name: The network name + * @priv: Private data. + */ +struct vidtv_mux_init_args { + u32 mux_rate_kbytes_sec; + void (*on_new_packets_available_cb)(void *priv, u8 *buf, u32 npackets); + u32 mux_buf_sz; + u64 pcr_period_usecs; + u64 si_period_usecs; + u16 pcr_pid; + u16 transport_stream_id; + struct vidtv_channel *channels; + u16 network_id; + char *network_name; + void *priv; +}; + +struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe, + struct device *dev, + struct vidtv_mux_init_args *args); +void vidtv_mux_destroy(struct vidtv_mux *m); + +void vidtv_mux_start_thread(struct vidtv_mux *m); +void vidtv_mux_stop_thread(struct vidtv_mux *m); + +#endif //VIDTV_MUX_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_pes.c b/drivers/media/test-drivers/vidtv/vidtv_pes.c new file mode 100644 index 000000000..782e5e7fb --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_pes.c @@ -0,0 +1,425 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the logic to translate the ES data for one access unit + * from an encoder into MPEG TS packets. It does so by first encapsulating it + * with a PES header and then splitting it into TS packets. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__ + +#include <linux/types.h> +#include <linux/printk.h> +#include <linux/ratelimit.h> + +#include "vidtv_pes.h" +#include "vidtv_common.h" +#include "vidtv_encoder.h" +#include "vidtv_ts.h" + +#define PRIVATE_STREAM_1_ID 0xbd /* private_stream_1. See SMPTE 302M-2007 p.6 */ +#define PES_HEADER_MAX_STUFFING_BYTES 32 +#define PES_TS_HEADER_MAX_STUFFING_BYTES 182 + +static u32 vidtv_pes_op_get_len(bool send_pts, bool send_dts) +{ + u32 len = 0; + + /* the flags must always be sent */ + len += sizeof(struct vidtv_pes_optional); + + /* From all optionals, we might send these for now */ + if (send_pts && send_dts) + len += sizeof(struct vidtv_pes_optional_pts_dts); + else if (send_pts) + len += sizeof(struct vidtv_pes_optional_pts); + + return len; +} + +#define SIZE_PCR (6 + sizeof(struct vidtv_mpeg_ts_adaption)) + +static u32 vidtv_pes_h_get_len(bool send_pts, bool send_dts) +{ + u32 len = 0; + + /* PES header length notwithstanding stuffing bytes */ + + len += sizeof(struct vidtv_mpeg_pes); + len += vidtv_pes_op_get_len(send_pts, send_dts); + + return len; +} + +static u32 vidtv_pes_write_header_stuffing(struct pes_header_write_args *args) +{ + /* + * This is a fixed 8-bit value equal to '0xFF' that can be inserted + * by the encoder, for example to meet the requirements of the channel. + * It is discarded by the decoder. No more than 32 stuffing bytes shall + * be present in one PES packet header. + */ + if (args->n_pes_h_s_bytes > PES_HEADER_MAX_STUFFING_BYTES) { + pr_warn_ratelimited("More than %d stuffing bytes in PES packet header\n", + PES_HEADER_MAX_STUFFING_BYTES); + args->n_pes_h_s_bytes = PES_HEADER_MAX_STUFFING_BYTES; + } + + return vidtv_memset(args->dest_buf, + args->dest_offset, + args->dest_buf_sz, + TS_FILL_BYTE, + args->n_pes_h_s_bytes); +} + +static u32 vidtv_pes_write_pts_dts(struct pes_header_write_args *args) +{ + u32 nbytes = 0; /* the number of bytes written by this function */ + + struct vidtv_pes_optional_pts pts = {}; + struct vidtv_pes_optional_pts_dts pts_dts = {}; + void *op = NULL; + size_t op_sz = 0; + u64 mask1; + u64 mask2; + u64 mask3; + + if (!args->send_pts && args->send_dts) + return 0; + + mask1 = GENMASK_ULL(32, 30); + mask2 = GENMASK_ULL(29, 15); + mask3 = GENMASK_ULL(14, 0); + + /* see ISO/IEC 13818-1 : 2000 p. 32 */ + if (args->send_pts && args->send_dts) { + pts_dts.pts1 = (0x3 << 4) | ((args->pts & mask1) >> 29) | 0x1; + pts_dts.pts2 = cpu_to_be16(((args->pts & mask2) >> 14) | 0x1); + pts_dts.pts3 = cpu_to_be16(((args->pts & mask3) << 1) | 0x1); + + pts_dts.dts1 = (0x1 << 4) | ((args->dts & mask1) >> 29) | 0x1; + pts_dts.dts2 = cpu_to_be16(((args->dts & mask2) >> 14) | 0x1); + pts_dts.dts3 = cpu_to_be16(((args->dts & mask3) << 1) | 0x1); + + op = &pts_dts; + op_sz = sizeof(pts_dts); + + } else if (args->send_pts) { + pts.pts1 = (0x1 << 5) | ((args->pts & mask1) >> 29) | 0x1; + pts.pts2 = cpu_to_be16(((args->pts & mask2) >> 14) | 0x1); + pts.pts3 = cpu_to_be16(((args->pts & mask3) << 1) | 0x1); + + op = &pts; + op_sz = sizeof(pts); + } + + /* copy PTS/DTS optional */ + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + op, + op_sz); + + return nbytes; +} + +static u32 vidtv_pes_write_h(struct pes_header_write_args *args) +{ + u32 nbytes = 0; /* the number of bytes written by this function */ + + struct vidtv_mpeg_pes pes_header = {}; + struct vidtv_pes_optional pes_optional = {}; + struct pes_header_write_args pts_dts_args; + u32 stream_id = (args->encoder_id == S302M) ? PRIVATE_STREAM_1_ID : args->stream_id; + u16 pes_opt_bitfield = 0x01 << 15; + + pes_header.bitfield = cpu_to_be32((PES_START_CODE_PREFIX << 8) | stream_id); + + pes_header.length = cpu_to_be16(vidtv_pes_op_get_len(args->send_pts, + args->send_dts) + + args->access_unit_len); + + if (args->send_pts && args->send_dts) + pes_opt_bitfield |= (0x3 << 6); + else if (args->send_pts) + pes_opt_bitfield |= (0x1 << 7); + + pes_optional.bitfield = cpu_to_be16(pes_opt_bitfield); + pes_optional.length = vidtv_pes_op_get_len(args->send_pts, args->send_dts) + + args->n_pes_h_s_bytes - + sizeof(struct vidtv_pes_optional); + + /* copy header */ + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + &pes_header, + sizeof(pes_header)); + + /* copy optional header bits */ + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + &pes_optional, + sizeof(pes_optional)); + + /* copy the timing information */ + pts_dts_args = *args; + pts_dts_args.dest_offset = args->dest_offset + nbytes; + nbytes += vidtv_pes_write_pts_dts(&pts_dts_args); + + /* write any PES header stuffing */ + nbytes += vidtv_pes_write_header_stuffing(args); + + return nbytes; +} + +static u32 vidtv_pes_write_pcr_bits(u8 *to, u32 to_offset, u64 pcr) +{ + /* Exact same from ffmpeg. PCR is a counter driven by a 27Mhz clock */ + u64 div; + u64 rem; + u8 *buf = to + to_offset; + u64 pcr_low; + u64 pcr_high; + + div = div64_u64_rem(pcr, 300, &rem); + + pcr_low = rem; /* pcr_low = pcr % 300 */ + pcr_high = div; /* pcr_high = pcr / 300 */ + + *buf++ = pcr_high >> 25; + *buf++ = pcr_high >> 17; + *buf++ = pcr_high >> 9; + *buf++ = pcr_high >> 1; + *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e; + *buf++ = pcr_low; + + return 6; +} + +static u32 vidtv_pes_write_stuffing(struct pes_ts_header_write_args *args, + u32 dest_offset, bool need_pcr, + u64 *last_pcr) +{ + struct vidtv_mpeg_ts_adaption ts_adap = {}; + int stuff_nbytes; + u32 nbytes = 0; + + if (!args->n_stuffing_bytes) + return 0; + + ts_adap.random_access = 1; + + /* length _immediately_ following 'adaptation_field_length' */ + if (need_pcr) { + ts_adap.PCR = 1; + ts_adap.length = SIZE_PCR; + } else { + ts_adap.length = sizeof(ts_adap); + } + stuff_nbytes = args->n_stuffing_bytes - ts_adap.length; + + ts_adap.length -= sizeof(ts_adap.length); + + if (unlikely(stuff_nbytes < 0)) + stuff_nbytes = 0; + + ts_adap.length += stuff_nbytes; + + /* write the adap after the TS header */ + nbytes += vidtv_memcpy(args->dest_buf, + dest_offset + nbytes, + args->dest_buf_sz, + &ts_adap, + sizeof(ts_adap)); + + /* write the optional PCR */ + if (need_pcr) { + nbytes += vidtv_pes_write_pcr_bits(args->dest_buf, + dest_offset + nbytes, + args->pcr); + + *last_pcr = args->pcr; + } + + /* write the stuffing bytes, if are there anything left */ + if (stuff_nbytes) + nbytes += vidtv_memset(args->dest_buf, + dest_offset + nbytes, + args->dest_buf_sz, + TS_FILL_BYTE, + stuff_nbytes); + + /* + * The n_stuffing_bytes contain a pre-calculated value of + * the amount of data that this function would read, made from + * vidtv_pes_h_get_len(). If something went wrong, print a warning + */ + if (nbytes != args->n_stuffing_bytes) + pr_warn_ratelimited("write size was %d, expected %d\n", + nbytes, args->n_stuffing_bytes); + + return nbytes; +} + +static u32 vidtv_pes_write_ts_h(struct pes_ts_header_write_args args, + bool need_pcr, u64 *last_pcr) +{ + /* number of bytes written by this function */ + u32 nbytes = 0; + struct vidtv_mpeg_ts ts_header = {}; + u16 payload_start = !args.wrote_pes_header; + + ts_header.sync_byte = TS_SYNC_BYTE; + ts_header.bitfield = cpu_to_be16((payload_start << 14) | args.pid); + ts_header.scrambling = 0; + ts_header.adaptation_field = (args.n_stuffing_bytes) > 0; + ts_header.payload = (args.n_stuffing_bytes) < PES_TS_HEADER_MAX_STUFFING_BYTES; + + ts_header.continuity_counter = *args.continuity_counter; + + vidtv_ts_inc_cc(args.continuity_counter); + + /* write the TS header */ + nbytes += vidtv_memcpy(args.dest_buf, + args.dest_offset + nbytes, + args.dest_buf_sz, + &ts_header, + sizeof(ts_header)); + + /* write stuffing, if any */ + nbytes += vidtv_pes_write_stuffing(&args, args.dest_offset + nbytes, + need_pcr, last_pcr); + + return nbytes; +} + +u32 vidtv_pes_write_into(struct pes_write_args *args) +{ + u32 unaligned_bytes = (args->dest_offset % TS_PACKET_LEN); + struct pes_ts_header_write_args ts_header_args = { + .dest_buf = args->dest_buf, + .dest_buf_sz = args->dest_buf_sz, + .pid = args->pid, + .pcr = args->pcr, + .continuity_counter = args->continuity_counter, + }; + struct pes_header_write_args pes_header_args = { + .dest_buf = args->dest_buf, + .dest_buf_sz = args->dest_buf_sz, + .encoder_id = args->encoder_id, + .send_pts = args->send_pts, + .pts = args->pts, + .send_dts = args->send_dts, + .dts = args->dts, + .stream_id = args->stream_id, + .n_pes_h_s_bytes = args->n_pes_h_s_bytes, + .access_unit_len = args->access_unit_len, + }; + u32 remaining_len = args->access_unit_len; + bool wrote_pes_header = false; + u64 last_pcr = args->pcr; + bool need_pcr = true; + u32 available_space; + u32 payload_size; + u32 stuff_bytes; + u32 nbytes = 0; + + if (unaligned_bytes) { + pr_warn_ratelimited("buffer is misaligned, while starting PES\n"); + + /* forcibly align and hope for the best */ + nbytes += vidtv_memset(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + TS_FILL_BYTE, + TS_PACKET_LEN - unaligned_bytes); + } + + while (remaining_len) { + available_space = TS_PAYLOAD_LEN; + /* + * The amount of space initially available in the TS packet. + * if this is the beginning of the PES packet, take into account + * the space needed for the TS header _and_ for the PES header + */ + if (!wrote_pes_header) + available_space -= vidtv_pes_h_get_len(args->send_pts, + args->send_dts); + + /* + * if the encoder has inserted stuffing bytes in the PES + * header, account for them. + */ + available_space -= args->n_pes_h_s_bytes; + + /* Take the extra adaptation into account if need to send PCR */ + if (need_pcr) { + available_space -= SIZE_PCR; + stuff_bytes = SIZE_PCR; + } else { + stuff_bytes = 0; + } + + /* + * how much of the _actual_ payload should be written in this + * packet. + */ + if (remaining_len >= available_space) { + payload_size = available_space; + } else { + /* Last frame should ensure 188-bytes PS alignment */ + payload_size = remaining_len; + stuff_bytes += available_space - payload_size; + + /* + * Ensure that the stuff bytes will be within the + * allowed range, decrementing the number of payload + * bytes to write if needed. + */ + if (stuff_bytes > PES_TS_HEADER_MAX_STUFFING_BYTES) { + u32 tmp = stuff_bytes - PES_TS_HEADER_MAX_STUFFING_BYTES; + + stuff_bytes = PES_TS_HEADER_MAX_STUFFING_BYTES; + payload_size -= tmp; + } + } + + /* write ts header */ + ts_header_args.dest_offset = args->dest_offset + nbytes; + ts_header_args.wrote_pes_header = wrote_pes_header; + ts_header_args.n_stuffing_bytes = stuff_bytes; + + nbytes += vidtv_pes_write_ts_h(ts_header_args, need_pcr, + &last_pcr); + + need_pcr = false; + + if (!wrote_pes_header) { + /* write the PES header only once */ + pes_header_args.dest_offset = args->dest_offset + + nbytes; + nbytes += vidtv_pes_write_h(&pes_header_args); + wrote_pes_header = true; + } + + /* write as much of the payload as we possibly can */ + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + args->from, + payload_size); + + args->from += payload_size; + + remaining_len -= payload_size; + } + + return nbytes; +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_pes.h b/drivers/media/test-drivers/vidtv/vidtv_pes.h new file mode 100644 index 000000000..963c59155 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_pes.h @@ -0,0 +1,193 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the logic to translate the ES data for one access unit + * from an encoder into MPEG TS packets. It does so by first encapsulating it + * with a PES header and then splitting it into TS packets. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_PES_H +#define VIDTV_PES_H + +#include <linux/types.h> + +#include "vidtv_common.h" + +#define PES_MAX_LEN 65536 /* Set 'length' to 0 if greater. Only possible for video. */ +#define PES_START_CODE_PREFIX 0x001 /* 00 00 01 */ + +/* Used when sending PTS, but not DTS */ +struct vidtv_pes_optional_pts { + u8 pts1; + __be16 pts2; + __be16 pts3; +} __packed; + +/* Used when sending both PTS and DTS */ +struct vidtv_pes_optional_pts_dts { + u8 pts1; + __be16 pts2; + __be16 pts3; + + u8 dts1; + __be16 dts2; + __be16 dts3; +} __packed; + +/* PES optional flags */ +struct vidtv_pes_optional { + /* + * These flags show which components are actually + * present in the "optional fields" in the optional PES + * header and which are not + * + * u16 two:2; //0x2 + * u16 PES_scrambling_control:2; + * u16 PES_priority:1; + * u16 data_alignment_indicator:1; // unused + * u16 copyright:1; + * u16 original_or_copy:1; + * u16 PTS_DTS:2; + * u16 ESCR:1; + * u16 ES_rate:1; + * u16 DSM_trick_mode:1; + * u16 additional_copy_info:1; + * u16 PES_CRC:1; + * u16 PES_extension:1; + */ + __be16 bitfield; + u8 length; +} __packed; + +/* The PES header */ +struct vidtv_mpeg_pes { + __be32 bitfield; /* packet_start_code_prefix:24, stream_id: 8 */ + /* after this field until the end of the PES data payload */ + __be16 length; + struct vidtv_pes_optional optional[]; +} __packed; + +/** + * struct pes_header_write_args - Arguments to write a PES header. + * @dest_buf: The buffer to write into. + * @dest_offset: where to start writing in the dest_buffer. + * @dest_buf_sz: The size of the dest_buffer + * @encoder_id: Encoder id (see vidtv_encoder.h) + * @send_pts: Should we send PTS? + * @pts: PTS value to send. + * @send_dts: Should we send DTS? + * @dts: DTS value to send. + * @stream_id: The stream id to use. Ex: Audio streams (0xc0-0xdf), Video + * streams (0xe0-0xef). + * @n_pes_h_s_bytes: Padding bytes. Might be used by an encoder if needed, gets + * discarded by the decoder. + * @access_unit_len: The size of _one_ access unit (with any headers it might need) + */ +struct pes_header_write_args { + void *dest_buf; + u32 dest_offset; + u32 dest_buf_sz; + u32 encoder_id; + + bool send_pts; + u64 pts; + + bool send_dts; + u64 dts; + + u16 stream_id; + /* might be used by an encoder if needed, gets discarded by decoder */ + u32 n_pes_h_s_bytes; + u32 access_unit_len; +}; + +/** + * struct pes_ts_header_write_args - Arguments to write a TS header. + * @dest_buf: The buffer to write into. + * @dest_offset: where to start writing in the dest_buffer. + * @dest_buf_sz: The size of the dest_buffer + * @pid: The PID to use for the TS packets. + * @continuity_counter: Incremented on every new TS packet. + * @wrote_pes_header: Flag to indicate that the PES header was written + * @n_stuffing_bytes: Padding bytes. Might be used by an encoder if needed, gets + * discarded by the decoder. + * @pcr: counter driven by a 27Mhz clock. + */ +struct pes_ts_header_write_args { + void *dest_buf; + u32 dest_offset; + u32 dest_buf_sz; + u16 pid; + u8 *continuity_counter; + bool wrote_pes_header; + u32 n_stuffing_bytes; + u64 pcr; +}; + +/** + * struct pes_write_args - Arguments for the packetizer. + * @dest_buf: The buffer to write into. + * @from: A pointer to the encoder buffer containing one access unit. + * @access_unit_len: The size of _one_ access unit (with any headers it might need) + * @dest_offset: where to start writing in the dest_buffer. + * @dest_buf_sz: The size of the dest_buffer + * @pid: The PID to use for the TS packets. + * @encoder_id: Encoder id (see vidtv_encoder.h) + * @continuity_counter: Incremented on every new TS packet. + * @stream_id: The stream id to use. Ex: Audio streams (0xc0-0xdf), Video + * streams (0xe0-0xef). + * @send_pts: Should we send PTS? + * @pts: PTS value to send. + * @send_dts: Should we send DTS? + * @dts: DTS value to send. + * @n_pes_h_s_bytes: Padding bytes. Might be used by an encoder if needed, gets + * discarded by the decoder. + * @pcr: counter driven by a 27Mhz clock. + */ +struct pes_write_args { + void *dest_buf; + void *from; + u32 access_unit_len; + + u32 dest_offset; + u32 dest_buf_sz; + u16 pid; + + u32 encoder_id; + + u8 *continuity_counter; + + u16 stream_id; + + bool send_pts; + u64 pts; + + bool send_dts; + u64 dts; + + u32 n_pes_h_s_bytes; + u64 pcr; +}; + +/** + * vidtv_pes_write_into - Write a PES packet as MPEG-TS packets into a buffer. + * @args: The args to use when writing + * + * This function translate the ES data for one access unit + * from an encoder into MPEG TS packets. It does so by first encapsulating it + * with a PES header and then splitting it into TS packets. + * + * The data is then written into the buffer pointed to by 'args.buf' + * + * Return: The number of bytes written into the buffer. This is usually NOT + * equal to the size of the access unit, since we need space for PES headers, TS headers + * and padding bytes, if any. + */ +u32 vidtv_pes_write_into(struct pes_write_args *args); + +#endif // VIDTV_PES_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.c b/drivers/media/test-drivers/vidtv/vidtv_psi.c new file mode 100644 index 000000000..c45828bc5 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_psi.c @@ -0,0 +1,2053 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This file contains the logic to work with MPEG Program-Specific Information. + * These are defined both in ISO/IEC 13818-1 (systems) and ETSI EN 300 468. + * PSI is carried in the form of table structures, and although each table might + * technically be broken into one or more sections, we do not do this here, + * hence 'table' and 'section' are interchangeable for vidtv. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__ + +#include <linux/bcd.h> +#include <linux/crc32.h> +#include <linux/kernel.h> +#include <linux/ktime.h> +#include <linux/printk.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/time.h> +#include <linux/types.h> + +#include "vidtv_common.h" +#include "vidtv_psi.h" +#include "vidtv_ts.h" + +#define CRC_SIZE_IN_BYTES 4 +#define MAX_VERSION_NUM 32 +#define INITIAL_CRC 0xffffffff +#define ISO_LANGUAGE_CODE_LEN 3 + +static const u32 CRC_LUT[256] = { + /* from libdvbv5 */ + 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, + 0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, + 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7, + 0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, + 0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, + 0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039, + 0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef, + 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, + 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb, + 0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, + 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0, + 0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072, + 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4, + 0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde, + 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, + 0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, + 0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc, + 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6, + 0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050, + 0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, + 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34, + 0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, + 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1, + 0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53, + 0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, + 0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, + 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9, + 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, + 0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, + 0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, + 0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71, + 0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3, + 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2, + 0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, + 0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, + 0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec, + 0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a, + 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, + 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676, + 0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, + 0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662, + 0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668, + 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 +}; + +static u32 dvb_crc32(u32 crc, u8 *data, u32 len) +{ + /* from libdvbv5 */ + while (len--) + crc = (crc << 8) ^ CRC_LUT[((crc >> 24) ^ *data++) & 0xff]; + return crc; +} + +static void vidtv_psi_update_version_num(struct vidtv_psi_table_header *h) +{ + h->version++; +} + +static u16 vidtv_psi_get_sec_len(struct vidtv_psi_table_header *h) +{ + u16 mask; + + mask = GENMASK(11, 0); + + return be16_to_cpu(h->bitfield) & mask; +} + +u16 vidtv_psi_get_pat_program_pid(struct vidtv_psi_table_pat_program *p) +{ + u16 mask; + + mask = GENMASK(12, 0); + + return be16_to_cpu(p->bitfield) & mask; +} + +u16 vidtv_psi_pmt_stream_get_elem_pid(struct vidtv_psi_table_pmt_stream *s) +{ + u16 mask; + + mask = GENMASK(12, 0); + + return be16_to_cpu(s->bitfield) & mask; +} + +static void vidtv_psi_set_desc_loop_len(__be16 *bitfield, u16 new_len, + u8 desc_len_nbits) +{ + __be16 new; + u16 mask; + + mask = GENMASK(15, desc_len_nbits); + + new = cpu_to_be16((be16_to_cpu(*bitfield) & mask) | new_len); + *bitfield = new; +} + +static void vidtv_psi_set_sec_len(struct vidtv_psi_table_header *h, u16 new_len) +{ + u16 old_len = vidtv_psi_get_sec_len(h); + __be16 new; + u16 mask; + + mask = GENMASK(15, 13); + + new = cpu_to_be16((be16_to_cpu(h->bitfield) & mask) | new_len); + + if (old_len > MAX_SECTION_LEN) + pr_warn_ratelimited("section length: %d > %d, old len was %d\n", + new_len, + MAX_SECTION_LEN, + old_len); + + h->bitfield = new; +} + +/* + * Packetize PSI sections into TS packets: + * push a TS header (4bytes) every 184 bytes + * manage the continuity_counter + * add stuffing (i.e. padding bytes) after the CRC + */ +static u32 vidtv_psi_ts_psi_write_into(struct psi_write_args *args) +{ + struct vidtv_mpeg_ts ts_header = { + .sync_byte = TS_SYNC_BYTE, + .bitfield = cpu_to_be16((args->new_psi_section << 14) | args->pid), + .scrambling = 0, + .payload = 1, + .adaptation_field = 0, /* no adaptation field */ + }; + u32 nbytes_past_boundary = (args->dest_offset % TS_PACKET_LEN); + bool aligned = (nbytes_past_boundary == 0); + u32 remaining_len = args->len; + u32 payload_write_len = 0; + u32 payload_offset = 0; + u32 nbytes = 0; + + if (!args->crc && !args->is_crc) + pr_warn_ratelimited("Missing CRC for chunk\n"); + + if (args->crc) + *args->crc = dvb_crc32(*args->crc, args->from, args->len); + + if (args->new_psi_section && !aligned) { + pr_warn_ratelimited("Cannot write a new PSI section in a misaligned buffer\n"); + + /* forcibly align and hope for the best */ + nbytes += vidtv_memset(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + TS_FILL_BYTE, + TS_PACKET_LEN - nbytes_past_boundary); + } + + while (remaining_len) { + nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN; + aligned = (nbytes_past_boundary == 0); + + if (aligned) { + /* if at a packet boundary, write a new TS header */ + ts_header.continuity_counter = *args->continuity_counter; + + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + &ts_header, + sizeof(ts_header)); + /* + * This will trigger a discontinuity if the buffer is full, + * effectively dropping the packet. + */ + vidtv_ts_inc_cc(args->continuity_counter); + } + + /* write the pointer_field in the first byte of the payload */ + if (args->new_psi_section) + nbytes += vidtv_memset(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + 0x0, + 1); + + /* write as much of the payload as possible */ + nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN; + payload_write_len = min(TS_PACKET_LEN - nbytes_past_boundary, remaining_len); + + nbytes += vidtv_memcpy(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + args->from + payload_offset, + payload_write_len); + + /* 'payload_write_len' written from a total of 'len' requested*/ + remaining_len -= payload_write_len; + payload_offset += payload_write_len; + } + + /* + * fill the rest of the packet if there is any remaining space unused + */ + + nbytes_past_boundary = (args->dest_offset + nbytes) % TS_PACKET_LEN; + + if (args->is_crc) + nbytes += vidtv_memset(args->dest_buf, + args->dest_offset + nbytes, + args->dest_buf_sz, + TS_FILL_BYTE, + TS_PACKET_LEN - nbytes_past_boundary); + + return nbytes; +} + +static u32 table_section_crc32_write_into(struct crc32_write_args *args) +{ + struct psi_write_args psi_args = { + .dest_buf = args->dest_buf, + .from = &args->crc, + .len = CRC_SIZE_IN_BYTES, + .dest_offset = args->dest_offset, + .pid = args->pid, + .new_psi_section = false, + .continuity_counter = args->continuity_counter, + .is_crc = true, + .dest_buf_sz = args->dest_buf_sz, + }; + + /* the CRC is the last entry in the section */ + + return vidtv_psi_ts_psi_write_into(&psi_args); +} + +static void vidtv_psi_desc_chain(struct vidtv_psi_desc *head, struct vidtv_psi_desc *desc) +{ + if (head) { + while (head->next) + head = head->next; + + head->next = desc; + } +} + +struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc *head, + enum service_type service_type, + char *service_name, + char *provider_name) +{ + struct vidtv_psi_desc_service *desc; + u32 service_name_len = service_name ? strlen(service_name) : 0; + u32 provider_name_len = provider_name ? strlen(provider_name) : 0; + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) + return NULL; + + desc->type = SERVICE_DESCRIPTOR; + + desc->length = sizeof_field(struct vidtv_psi_desc_service, service_type) + + sizeof_field(struct vidtv_psi_desc_service, provider_name_len) + + provider_name_len + + sizeof_field(struct vidtv_psi_desc_service, service_name_len) + + service_name_len; + + desc->service_type = service_type; + + desc->service_name_len = service_name_len; + + if (service_name && service_name_len) { + desc->service_name = kstrdup(service_name, GFP_KERNEL); + if (!desc->service_name) + goto free_desc; + } + + desc->provider_name_len = provider_name_len; + + if (provider_name && provider_name_len) { + desc->provider_name = kstrdup(provider_name, GFP_KERNEL); + if (!desc->provider_name) + goto free_desc_service_name; + } + + vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc); + return desc; + +free_desc_service_name: + if (service_name && service_name_len) + kfree(desc->service_name); +free_desc: + kfree(desc); + return NULL; +} + +struct vidtv_psi_desc_registration +*vidtv_psi_registration_desc_init(struct vidtv_psi_desc *head, + __be32 format_id, + u8 *additional_ident_info, + u32 additional_info_len) +{ + struct vidtv_psi_desc_registration *desc; + + desc = kzalloc(sizeof(*desc) + sizeof(format_id) + additional_info_len, GFP_KERNEL); + if (!desc) + return NULL; + + desc->type = REGISTRATION_DESCRIPTOR; + + desc->length = sizeof_field(struct vidtv_psi_desc_registration, format_id) + + additional_info_len; + + desc->format_id = format_id; + + if (additional_ident_info && additional_info_len) + memcpy(desc->additional_identification_info, + additional_ident_info, + additional_info_len); + + vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc); + return desc; +} + +struct vidtv_psi_desc_network_name +*vidtv_psi_network_name_desc_init(struct vidtv_psi_desc *head, char *network_name) +{ + u32 network_name_len = network_name ? strlen(network_name) : 0; + struct vidtv_psi_desc_network_name *desc; + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) + return NULL; + + desc->type = NETWORK_NAME_DESCRIPTOR; + + desc->length = network_name_len; + + if (network_name && network_name_len) { + desc->network_name = kstrdup(network_name, GFP_KERNEL); + if (!desc->network_name) { + kfree(desc); + return NULL; + } + } + + vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc); + return desc; +} + +struct vidtv_psi_desc_service_list +*vidtv_psi_service_list_desc_init(struct vidtv_psi_desc *head, + struct vidtv_psi_desc_service_list_entry *entry) +{ + struct vidtv_psi_desc_service_list_entry *curr_e = NULL; + struct vidtv_psi_desc_service_list_entry *head_e = NULL; + struct vidtv_psi_desc_service_list_entry *prev_e = NULL; + struct vidtv_psi_desc_service_list *desc; + u16 length = 0; + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) + return NULL; + + desc->type = SERVICE_LIST_DESCRIPTOR; + + while (entry) { + curr_e = kzalloc(sizeof(*curr_e), GFP_KERNEL); + if (!curr_e) { + while (head_e) { + curr_e = head_e; + head_e = head_e->next; + kfree(curr_e); + } + kfree(desc); + return NULL; + } + + curr_e->service_id = entry->service_id; + curr_e->service_type = entry->service_type; + + length += sizeof(struct vidtv_psi_desc_service_list_entry) - + sizeof(struct vidtv_psi_desc_service_list_entry *); + + if (!head_e) + head_e = curr_e; + if (prev_e) + prev_e->next = curr_e; + + prev_e = curr_e; + entry = entry->next; + } + + desc->length = length; + desc->service_list = head_e; + + vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc); + return desc; +} + +struct vidtv_psi_desc_short_event +*vidtv_psi_short_event_desc_init(struct vidtv_psi_desc *head, + char *iso_language_code, + char *event_name, + char *text) +{ + u32 iso_len = iso_language_code ? strlen(iso_language_code) : 0; + u32 event_name_len = event_name ? strlen(event_name) : 0; + struct vidtv_psi_desc_short_event *desc; + u32 text_len = text ? strlen(text) : 0; + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) + return NULL; + + desc->type = SHORT_EVENT_DESCRIPTOR; + + desc->length = ISO_LANGUAGE_CODE_LEN + + sizeof_field(struct vidtv_psi_desc_short_event, event_name_len) + + event_name_len + + sizeof_field(struct vidtv_psi_desc_short_event, text_len) + + text_len; + + desc->event_name_len = event_name_len; + desc->text_len = text_len; + + if (iso_len != ISO_LANGUAGE_CODE_LEN) + iso_language_code = "eng"; + + desc->iso_language_code = kstrdup(iso_language_code, GFP_KERNEL); + if (!desc->iso_language_code) + goto free_desc; + + if (event_name && event_name_len) { + desc->event_name = kstrdup(event_name, GFP_KERNEL); + if (!desc->event_name) + goto free_desc_language_code; + } + + if (text && text_len) { + desc->text = kstrdup(text, GFP_KERNEL); + if (!desc->text) + goto free_desc_event_name; + } + + vidtv_psi_desc_chain(head, (struct vidtv_psi_desc *)desc); + return desc; + +free_desc_event_name: + if (event_name && event_name_len) + kfree(desc->event_name); +free_desc_language_code: + kfree(desc->iso_language_code); +free_desc: + kfree(desc); + return NULL; +} + +struct vidtv_psi_desc *vidtv_psi_desc_clone(struct vidtv_psi_desc *desc) +{ + struct vidtv_psi_desc_network_name *desc_network_name; + struct vidtv_psi_desc_service_list *desc_service_list; + struct vidtv_psi_desc_short_event *desc_short_event; + struct vidtv_psi_desc_service *service; + struct vidtv_psi_desc *head = NULL; + struct vidtv_psi_desc *prev = NULL; + struct vidtv_psi_desc *curr = NULL; + + while (desc) { + switch (desc->type) { + case SERVICE_DESCRIPTOR: + service = (struct vidtv_psi_desc_service *)desc; + curr = (struct vidtv_psi_desc *) + vidtv_psi_service_desc_init(head, + service->service_type, + service->service_name, + service->provider_name); + break; + + case NETWORK_NAME_DESCRIPTOR: + desc_network_name = (struct vidtv_psi_desc_network_name *)desc; + curr = (struct vidtv_psi_desc *) + vidtv_psi_network_name_desc_init(head, + desc_network_name->network_name); + break; + + case SERVICE_LIST_DESCRIPTOR: + desc_service_list = (struct vidtv_psi_desc_service_list *)desc; + curr = (struct vidtv_psi_desc *) + vidtv_psi_service_list_desc_init(head, + desc_service_list->service_list); + break; + + case SHORT_EVENT_DESCRIPTOR: + desc_short_event = (struct vidtv_psi_desc_short_event *)desc; + curr = (struct vidtv_psi_desc *) + vidtv_psi_short_event_desc_init(head, + desc_short_event->iso_language_code, + desc_short_event->event_name, + desc_short_event->text); + break; + + case REGISTRATION_DESCRIPTOR: + default: + curr = kmemdup(desc, sizeof(*desc) + desc->length, GFP_KERNEL); + if (!curr) + return NULL; + } + + if (!curr) + return NULL; + + curr->next = NULL; + if (!head) + head = curr; + if (prev) + prev->next = curr; + + prev = curr; + desc = desc->next; + } + + return head; +} + +void vidtv_psi_desc_destroy(struct vidtv_psi_desc *desc) +{ + struct vidtv_psi_desc_service_list_entry *sl_entry_tmp = NULL; + struct vidtv_psi_desc_service_list_entry *sl_entry = NULL; + struct vidtv_psi_desc *curr = desc; + struct vidtv_psi_desc *tmp = NULL; + + while (curr) { + tmp = curr; + curr = curr->next; + + switch (tmp->type) { + case SERVICE_DESCRIPTOR: + kfree(((struct vidtv_psi_desc_service *)tmp)->provider_name); + kfree(((struct vidtv_psi_desc_service *)tmp)->service_name); + + break; + case REGISTRATION_DESCRIPTOR: + /* nothing to do */ + break; + + case NETWORK_NAME_DESCRIPTOR: + kfree(((struct vidtv_psi_desc_network_name *)tmp)->network_name); + break; + + case SERVICE_LIST_DESCRIPTOR: + sl_entry = ((struct vidtv_psi_desc_service_list *)tmp)->service_list; + while (sl_entry) { + sl_entry_tmp = sl_entry; + sl_entry = sl_entry->next; + kfree(sl_entry_tmp); + } + break; + + case SHORT_EVENT_DESCRIPTOR: + kfree(((struct vidtv_psi_desc_short_event *)tmp)->iso_language_code); + kfree(((struct vidtv_psi_desc_short_event *)tmp)->event_name); + kfree(((struct vidtv_psi_desc_short_event *)tmp)->text); + break; + + default: + pr_warn_ratelimited("Possible leak: not handling descriptor type %d\n", + tmp->type); + break; + } + + kfree(tmp); + } +} + +static u16 +vidtv_psi_desc_comp_loop_len(struct vidtv_psi_desc *desc) +{ + u32 length = 0; + + if (!desc) + return 0; + + while (desc) { + length += sizeof_field(struct vidtv_psi_desc, type); + length += sizeof_field(struct vidtv_psi_desc, length); + length += desc->length; /* from 'length' field until the end of the descriptor */ + desc = desc->next; + } + + return length; +} + +void vidtv_psi_desc_assign(struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc) +{ + if (desc == *to) + return; + + if (*to) + vidtv_psi_desc_destroy(*to); + + *to = desc; +} + +void vidtv_pmt_desc_assign(struct vidtv_psi_table_pmt *pmt, + struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc) +{ + vidtv_psi_desc_assign(to, desc); + vidtv_psi_pmt_table_update_sec_len(pmt); + + if (vidtv_psi_get_sec_len(&pmt->header) > MAX_SECTION_LEN) + vidtv_psi_desc_assign(to, NULL); + + vidtv_psi_update_version_num(&pmt->header); +} + +void vidtv_sdt_desc_assign(struct vidtv_psi_table_sdt *sdt, + struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc) +{ + vidtv_psi_desc_assign(to, desc); + vidtv_psi_sdt_table_update_sec_len(sdt); + + if (vidtv_psi_get_sec_len(&sdt->header) > MAX_SECTION_LEN) + vidtv_psi_desc_assign(to, NULL); + + vidtv_psi_update_version_num(&sdt->header); +} + +static u32 vidtv_psi_desc_write_into(struct desc_write_args *args) +{ + struct psi_write_args psi_args = { + .dest_buf = args->dest_buf, + .from = &args->desc->type, + .pid = args->pid, + .new_psi_section = false, + .continuity_counter = args->continuity_counter, + .is_crc = false, + .dest_buf_sz = args->dest_buf_sz, + .crc = args->crc, + .len = sizeof_field(struct vidtv_psi_desc, type) + + sizeof_field(struct vidtv_psi_desc, length), + }; + struct vidtv_psi_desc_service_list_entry *serv_list_entry = NULL; + u32 nbytes = 0; + + psi_args.dest_offset = args->dest_offset + nbytes; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + switch (args->desc->type) { + case SERVICE_DESCRIPTOR: + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = sizeof_field(struct vidtv_psi_desc_service, service_type) + + sizeof_field(struct vidtv_psi_desc_service, provider_name_len); + psi_args.from = &((struct vidtv_psi_desc_service *)args->desc)->service_type; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = ((struct vidtv_psi_desc_service *)args->desc)->provider_name_len; + psi_args.from = ((struct vidtv_psi_desc_service *)args->desc)->provider_name; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = sizeof_field(struct vidtv_psi_desc_service, service_name_len); + psi_args.from = &((struct vidtv_psi_desc_service *)args->desc)->service_name_len; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = ((struct vidtv_psi_desc_service *)args->desc)->service_name_len; + psi_args.from = ((struct vidtv_psi_desc_service *)args->desc)->service_name; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + break; + + case NETWORK_NAME_DESCRIPTOR: + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = args->desc->length; + psi_args.from = ((struct vidtv_psi_desc_network_name *)args->desc)->network_name; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + break; + + case SERVICE_LIST_DESCRIPTOR: + serv_list_entry = ((struct vidtv_psi_desc_service_list *)args->desc)->service_list; + while (serv_list_entry) { + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = sizeof(struct vidtv_psi_desc_service_list_entry) - + sizeof(struct vidtv_psi_desc_service_list_entry *); + psi_args.from = serv_list_entry; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + serv_list_entry = serv_list_entry->next; + } + break; + + case SHORT_EVENT_DESCRIPTOR: + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = ISO_LANGUAGE_CODE_LEN; + psi_args.from = ((struct vidtv_psi_desc_short_event *) + args->desc)->iso_language_code; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = sizeof_field(struct vidtv_psi_desc_short_event, event_name_len); + psi_args.from = &((struct vidtv_psi_desc_short_event *) + args->desc)->event_name_len; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = ((struct vidtv_psi_desc_short_event *)args->desc)->event_name_len; + psi_args.from = ((struct vidtv_psi_desc_short_event *)args->desc)->event_name; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = sizeof_field(struct vidtv_psi_desc_short_event, text_len); + psi_args.from = &((struct vidtv_psi_desc_short_event *)args->desc)->text_len; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = ((struct vidtv_psi_desc_short_event *)args->desc)->text_len; + psi_args.from = ((struct vidtv_psi_desc_short_event *)args->desc)->text; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + break; + + case REGISTRATION_DESCRIPTOR: + default: + psi_args.dest_offset = args->dest_offset + nbytes; + psi_args.len = args->desc->length; + psi_args.from = &args->desc->data; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + break; + } + + return nbytes; +} + +static u32 +vidtv_psi_table_header_write_into(struct header_write_args *args) +{ + struct psi_write_args psi_args = { + .dest_buf = args->dest_buf, + .from = args->h, + .len = sizeof(struct vidtv_psi_table_header), + .dest_offset = args->dest_offset, + .pid = args->pid, + .new_psi_section = true, + .continuity_counter = args->continuity_counter, + .is_crc = false, + .dest_buf_sz = args->dest_buf_sz, + .crc = args->crc, + }; + + return vidtv_psi_ts_psi_write_into(&psi_args); +} + +void +vidtv_psi_pat_table_update_sec_len(struct vidtv_psi_table_pat *pat) +{ + u16 length = 0; + u32 i; + + /* see ISO/IEC 13818-1 : 2000 p.43 */ + + /* from immediately after 'section_length' until 'last_section_number'*/ + length += PAT_LEN_UNTIL_LAST_SECTION_NUMBER; + + /* do not count the pointer */ + for (i = 0; i < pat->num_pat; ++i) + length += sizeof(struct vidtv_psi_table_pat_program) - + sizeof(struct vidtv_psi_table_pat_program *); + + length += CRC_SIZE_IN_BYTES; + + vidtv_psi_set_sec_len(&pat->header, length); +} + +void vidtv_psi_pmt_table_update_sec_len(struct vidtv_psi_table_pmt *pmt) +{ + struct vidtv_psi_table_pmt_stream *s = pmt->stream; + u16 desc_loop_len; + u16 length = 0; + + /* see ISO/IEC 13818-1 : 2000 p.46 */ + + /* from immediately after 'section_length' until 'program_info_length'*/ + length += PMT_LEN_UNTIL_PROGRAM_INFO_LENGTH; + + desc_loop_len = vidtv_psi_desc_comp_loop_len(pmt->descriptor); + vidtv_psi_set_desc_loop_len(&pmt->bitfield2, desc_loop_len, 10); + + length += desc_loop_len; + + while (s) { + /* skip both pointers at the end */ + length += sizeof(struct vidtv_psi_table_pmt_stream) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_pmt_stream *); + + desc_loop_len = vidtv_psi_desc_comp_loop_len(s->descriptor); + vidtv_psi_set_desc_loop_len(&s->bitfield2, desc_loop_len, 10); + + length += desc_loop_len; + + s = s->next; + } + + length += CRC_SIZE_IN_BYTES; + + vidtv_psi_set_sec_len(&pmt->header, length); +} + +void vidtv_psi_sdt_table_update_sec_len(struct vidtv_psi_table_sdt *sdt) +{ + struct vidtv_psi_table_sdt_service *s = sdt->service; + u16 desc_loop_len; + u16 length = 0; + + /* see ETSI EN 300 468 V 1.10.1 p.24 */ + + /* + * from immediately after 'section_length' until + * 'reserved_for_future_use' + */ + length += SDT_LEN_UNTIL_RESERVED_FOR_FUTURE_USE; + + while (s) { + /* skip both pointers at the end */ + length += sizeof(struct vidtv_psi_table_sdt_service) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_sdt_service *); + + desc_loop_len = vidtv_psi_desc_comp_loop_len(s->descriptor); + vidtv_psi_set_desc_loop_len(&s->bitfield, desc_loop_len, 12); + + length += desc_loop_len; + + s = s->next; + } + + length += CRC_SIZE_IN_BYTES; + vidtv_psi_set_sec_len(&sdt->header, length); +} + +struct vidtv_psi_table_pat_program* +vidtv_psi_pat_program_init(struct vidtv_psi_table_pat_program *head, + u16 service_id, + u16 program_map_pid) +{ + struct vidtv_psi_table_pat_program *program; + const u16 RESERVED = 0x07; + + program = kzalloc(sizeof(*program), GFP_KERNEL); + if (!program) + return NULL; + + program->service_id = cpu_to_be16(service_id); + + /* pid for the PMT section in the TS */ + program->bitfield = cpu_to_be16((RESERVED << 13) | program_map_pid); + program->next = NULL; + + if (head) { + while (head->next) + head = head->next; + + head->next = program; + } + + return program; +} + +void +vidtv_psi_pat_program_destroy(struct vidtv_psi_table_pat_program *p) +{ + struct vidtv_psi_table_pat_program *tmp = NULL; + struct vidtv_psi_table_pat_program *curr = p; + + while (curr) { + tmp = curr; + curr = curr->next; + kfree(tmp); + } +} + +/* This function transfers ownership of p to the table */ +void +vidtv_psi_pat_program_assign(struct vidtv_psi_table_pat *pat, + struct vidtv_psi_table_pat_program *p) +{ + struct vidtv_psi_table_pat_program *program; + u16 program_count; + + do { + program_count = 0; + program = p; + + if (p == pat->program) + return; + + while (program) { + ++program_count; + program = program->next; + } + + pat->num_pat = program_count; + pat->program = p; + + /* Recompute section length */ + vidtv_psi_pat_table_update_sec_len(pat); + + p = NULL; + } while (vidtv_psi_get_sec_len(&pat->header) > MAX_SECTION_LEN); + + vidtv_psi_update_version_num(&pat->header); +} + +struct vidtv_psi_table_pat *vidtv_psi_pat_table_init(u16 transport_stream_id) +{ + struct vidtv_psi_table_pat *pat; + const u16 SYNTAX = 0x1; + const u16 ZERO = 0x0; + const u16 ONES = 0x03; + + pat = kzalloc(sizeof(*pat), GFP_KERNEL); + if (!pat) + return NULL; + + pat->header.table_id = 0x0; + + pat->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ZERO << 14) | (ONES << 12)); + pat->header.id = cpu_to_be16(transport_stream_id); + pat->header.current_next = 0x1; + + pat->header.version = 0x1f; + + pat->header.one2 = 0x03; + pat->header.section_id = 0x0; + pat->header.last_section = 0x0; + + vidtv_psi_pat_table_update_sec_len(pat); + + return pat; +} + +u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args) +{ + struct vidtv_psi_table_pat_program *p = args->pat->program; + struct header_write_args h_args = { + .dest_buf = args->buf, + .dest_offset = args->offset, + .pid = VIDTV_PAT_PID, + .h = &args->pat->header, + .continuity_counter = args->continuity_counter, + .dest_buf_sz = args->buf_sz, + }; + struct psi_write_args psi_args = { + .dest_buf = args->buf, + .pid = VIDTV_PAT_PID, + .new_psi_section = false, + .continuity_counter = args->continuity_counter, + .is_crc = false, + .dest_buf_sz = args->buf_sz, + }; + struct crc32_write_args c_args = { + .dest_buf = args->buf, + .pid = VIDTV_PAT_PID, + .dest_buf_sz = args->buf_sz, + }; + u32 crc = INITIAL_CRC; + u32 nbytes = 0; + + vidtv_psi_pat_table_update_sec_len(args->pat); + + h_args.crc = &crc; + + nbytes += vidtv_psi_table_header_write_into(&h_args); + + /* note that the field 'u16 programs' is not really part of the PAT */ + + psi_args.crc = &crc; + + while (p) { + /* copy the PAT programs */ + psi_args.from = p; + /* skip the pointer */ + psi_args.len = sizeof(*p) - + sizeof(struct vidtv_psi_table_pat_program *); + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + p = p->next; + } + + c_args.dest_offset = args->offset + nbytes; + c_args.continuity_counter = args->continuity_counter; + c_args.crc = cpu_to_be32(crc); + + /* Write the CRC32 at the end */ + nbytes += table_section_crc32_write_into(&c_args); + + return nbytes; +} + +void +vidtv_psi_pat_table_destroy(struct vidtv_psi_table_pat *p) +{ + vidtv_psi_pat_program_destroy(p->program); + kfree(p); +} + +struct vidtv_psi_table_pmt_stream* +vidtv_psi_pmt_stream_init(struct vidtv_psi_table_pmt_stream *head, + enum vidtv_psi_stream_types stream_type, + u16 es_pid) +{ + struct vidtv_psi_table_pmt_stream *stream; + const u16 RESERVED1 = 0x07; + const u16 RESERVED2 = 0x0f; + const u16 ZERO = 0x0; + u16 desc_loop_len; + + stream = kzalloc(sizeof(*stream), GFP_KERNEL); + if (!stream) + return NULL; + + stream->type = stream_type; + + stream->bitfield = cpu_to_be16((RESERVED1 << 13) | es_pid); + + desc_loop_len = vidtv_psi_desc_comp_loop_len(stream->descriptor); + + stream->bitfield2 = cpu_to_be16((RESERVED2 << 12) | + (ZERO << 10) | + desc_loop_len); + stream->next = NULL; + + if (head) { + while (head->next) + head = head->next; + + head->next = stream; + } + + return stream; +} + +void vidtv_psi_pmt_stream_destroy(struct vidtv_psi_table_pmt_stream *s) +{ + struct vidtv_psi_table_pmt_stream *tmp_stream = NULL; + struct vidtv_psi_table_pmt_stream *curr_stream = s; + + while (curr_stream) { + tmp_stream = curr_stream; + curr_stream = curr_stream->next; + vidtv_psi_desc_destroy(tmp_stream->descriptor); + kfree(tmp_stream); + } +} + +void vidtv_psi_pmt_stream_assign(struct vidtv_psi_table_pmt *pmt, + struct vidtv_psi_table_pmt_stream *s) +{ + do { + /* This function transfers ownership of s to the table */ + if (s == pmt->stream) + return; + + pmt->stream = s; + vidtv_psi_pmt_table_update_sec_len(pmt); + + s = NULL; + } while (vidtv_psi_get_sec_len(&pmt->header) > MAX_SECTION_LEN); + + vidtv_psi_update_version_num(&pmt->header); +} + +u16 vidtv_psi_pmt_get_pid(struct vidtv_psi_table_pmt *section, + struct vidtv_psi_table_pat *pat) +{ + struct vidtv_psi_table_pat_program *program = pat->program; + + /* + * service_id is the same as program_number in the + * corresponding program_map_section + * see ETSI EN 300 468 v1.15.1 p. 24 + */ + while (program) { + if (program->service_id == section->header.id) + return vidtv_psi_get_pat_program_pid(program); + + program = program->next; + } + + return TS_LAST_VALID_PID + 1; /* not found */ +} + +struct vidtv_psi_table_pmt *vidtv_psi_pmt_table_init(u16 program_number, + u16 pcr_pid) +{ + struct vidtv_psi_table_pmt *pmt; + const u16 RESERVED1 = 0x07; + const u16 RESERVED2 = 0x0f; + const u16 SYNTAX = 0x1; + const u16 ONES = 0x03; + const u16 ZERO = 0x0; + u16 desc_loop_len; + + pmt = kzalloc(sizeof(*pmt), GFP_KERNEL); + if (!pmt) + return NULL; + + if (!pcr_pid) + pcr_pid = 0x1fff; + + pmt->header.table_id = 0x2; + + pmt->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ZERO << 14) | (ONES << 12)); + + pmt->header.id = cpu_to_be16(program_number); + pmt->header.current_next = 0x1; + + pmt->header.version = 0x1f; + + pmt->header.one2 = ONES; + pmt->header.section_id = 0; + pmt->header.last_section = 0; + + pmt->bitfield = cpu_to_be16((RESERVED1 << 13) | pcr_pid); + + desc_loop_len = vidtv_psi_desc_comp_loop_len(pmt->descriptor); + + pmt->bitfield2 = cpu_to_be16((RESERVED2 << 12) | + (ZERO << 10) | + desc_loop_len); + + vidtv_psi_pmt_table_update_sec_len(pmt); + + return pmt; +} + +u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args *args) +{ + struct vidtv_psi_desc *table_descriptor = args->pmt->descriptor; + struct vidtv_psi_table_pmt_stream *stream = args->pmt->stream; + struct vidtv_psi_desc *stream_descriptor; + u32 crc = INITIAL_CRC; + u32 nbytes = 0; + struct header_write_args h_args = { + .dest_buf = args->buf, + .dest_offset = args->offset, + .h = &args->pmt->header, + .pid = args->pid, + .continuity_counter = args->continuity_counter, + .dest_buf_sz = args->buf_sz, + }; + struct psi_write_args psi_args = { + .dest_buf = args->buf, + .from = &args->pmt->bitfield, + .len = sizeof_field(struct vidtv_psi_table_pmt, bitfield) + + sizeof_field(struct vidtv_psi_table_pmt, bitfield2), + .pid = args->pid, + .new_psi_section = false, + .is_crc = false, + .dest_buf_sz = args->buf_sz, + .crc = &crc, + }; + struct desc_write_args d_args = { + .dest_buf = args->buf, + .desc = table_descriptor, + .pid = args->pid, + .dest_buf_sz = args->buf_sz, + }; + struct crc32_write_args c_args = { + .dest_buf = args->buf, + .pid = args->pid, + .dest_buf_sz = args->buf_sz, + }; + + vidtv_psi_pmt_table_update_sec_len(args->pmt); + + h_args.crc = &crc; + + nbytes += vidtv_psi_table_header_write_into(&h_args); + + /* write the two bitfields */ + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + while (table_descriptor) { + /* write the descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + table_descriptor = table_descriptor->next; + } + + psi_args.len += sizeof_field(struct vidtv_psi_table_pmt_stream, type); + while (stream) { + /* write the streams, if any */ + psi_args.from = stream; + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + stream_descriptor = stream->descriptor; + + while (stream_descriptor) { + /* write the stream descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.desc = stream_descriptor; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + stream_descriptor = stream_descriptor->next; + } + + stream = stream->next; + } + + c_args.dest_offset = args->offset + nbytes; + c_args.crc = cpu_to_be32(crc); + c_args.continuity_counter = args->continuity_counter; + + /* Write the CRC32 at the end */ + nbytes += table_section_crc32_write_into(&c_args); + + return nbytes; +} + +void vidtv_psi_pmt_table_destroy(struct vidtv_psi_table_pmt *pmt) +{ + vidtv_psi_desc_destroy(pmt->descriptor); + vidtv_psi_pmt_stream_destroy(pmt->stream); + kfree(pmt); +} + +struct vidtv_psi_table_sdt *vidtv_psi_sdt_table_init(u16 network_id, + u16 transport_stream_id) +{ + struct vidtv_psi_table_sdt *sdt; + const u16 RESERVED = 0xff; + const u16 SYNTAX = 0x1; + const u16 ONES = 0x03; + const u16 ONE = 0x1; + + sdt = kzalloc(sizeof(*sdt), GFP_KERNEL); + if (!sdt) + return NULL; + + sdt->header.table_id = 0x42; + sdt->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12)); + + /* + * This is a 16-bit field which serves as a label for identification + * of the TS, about which the SDT informs, from any other multiplex + * within the delivery system. + */ + sdt->header.id = cpu_to_be16(transport_stream_id); + sdt->header.current_next = ONE; + + sdt->header.version = 0x1f; + + sdt->header.one2 = ONES; + sdt->header.section_id = 0; + sdt->header.last_section = 0; + + /* + * FIXME: The network_id range from 0xFF01 to 0xFFFF is used to + * indicate temporary private use. For now, let's use the first + * value. + * This can be changed to something more useful, when support for + * NIT gets added + */ + sdt->network_id = cpu_to_be16(network_id); + sdt->reserved = RESERVED; + + vidtv_psi_sdt_table_update_sec_len(sdt); + + return sdt; +} + +u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args *args) +{ + struct header_write_args h_args = { + .dest_buf = args->buf, + .dest_offset = args->offset, + .h = &args->sdt->header, + .pid = VIDTV_SDT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct psi_write_args psi_args = { + .dest_buf = args->buf, + .len = sizeof_field(struct vidtv_psi_table_sdt, network_id) + + sizeof_field(struct vidtv_psi_table_sdt, reserved), + .pid = VIDTV_SDT_PID, + .new_psi_section = false, + .is_crc = false, + .dest_buf_sz = args->buf_sz, + }; + struct desc_write_args d_args = { + .dest_buf = args->buf, + .pid = VIDTV_SDT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct crc32_write_args c_args = { + .dest_buf = args->buf, + .pid = VIDTV_SDT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct vidtv_psi_table_sdt_service *service = args->sdt->service; + struct vidtv_psi_desc *service_desc; + u32 nbytes = 0; + u32 crc = INITIAL_CRC; + + /* see ETSI EN 300 468 v1.15.1 p. 11 */ + + vidtv_psi_sdt_table_update_sec_len(args->sdt); + + h_args.continuity_counter = args->continuity_counter; + h_args.crc = &crc; + + nbytes += vidtv_psi_table_header_write_into(&h_args); + + psi_args.from = &args->sdt->network_id; + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + psi_args.crc = &crc; + + /* copy u16 network_id + u8 reserved)*/ + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + /* skip both pointers at the end */ + psi_args.len = sizeof(struct vidtv_psi_table_sdt_service) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_sdt_service *); + + while (service) { + /* copy the services, if any */ + psi_args.from = service; + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + service_desc = service->descriptor; + + while (service_desc) { + /* copy the service descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.desc = service_desc; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + service_desc = service_desc->next; + } + + service = service->next; + } + + c_args.dest_offset = args->offset + nbytes; + c_args.crc = cpu_to_be32(crc); + c_args.continuity_counter = args->continuity_counter; + + /* Write the CRC at the end */ + nbytes += table_section_crc32_write_into(&c_args); + + return nbytes; +} + +void vidtv_psi_sdt_table_destroy(struct vidtv_psi_table_sdt *sdt) +{ + vidtv_psi_sdt_service_destroy(sdt->service); + kfree(sdt); +} + +struct vidtv_psi_table_sdt_service +*vidtv_psi_sdt_service_init(struct vidtv_psi_table_sdt_service *head, + u16 service_id, + bool eit_schedule, + bool eit_present_following) +{ + struct vidtv_psi_table_sdt_service *service; + + service = kzalloc(sizeof(*service), GFP_KERNEL); + if (!service) + return NULL; + + /* + * ETSI 300 468: this is a 16bit field which serves as a label to + * identify this service from any other service within the TS. + * The service id is the same as the program number in the + * corresponding program_map_section + */ + service->service_id = cpu_to_be16(service_id); + service->EIT_schedule = eit_schedule; + service->EIT_present_following = eit_present_following; + service->reserved = 0x3f; + + service->bitfield = cpu_to_be16(RUNNING << 13); + + if (head) { + while (head->next) + head = head->next; + + head->next = service; + } + + return service; +} + +void +vidtv_psi_sdt_service_destroy(struct vidtv_psi_table_sdt_service *service) +{ + struct vidtv_psi_table_sdt_service *curr = service; + struct vidtv_psi_table_sdt_service *tmp = NULL; + + while (curr) { + tmp = curr; + curr = curr->next; + vidtv_psi_desc_destroy(tmp->descriptor); + kfree(tmp); + } +} + +void +vidtv_psi_sdt_service_assign(struct vidtv_psi_table_sdt *sdt, + struct vidtv_psi_table_sdt_service *service) +{ + do { + if (service == sdt->service) + return; + + sdt->service = service; + + /* recompute section length */ + vidtv_psi_sdt_table_update_sec_len(sdt); + + service = NULL; + } while (vidtv_psi_get_sec_len(&sdt->header) > MAX_SECTION_LEN); + + vidtv_psi_update_version_num(&sdt->header); +} + +/* + * PMTs contain information about programs. For each program, + * there is one PMT section. This function will create a section + * for each program found in the PAT + */ +struct vidtv_psi_table_pmt** +vidtv_psi_pmt_create_sec_for_each_pat_entry(struct vidtv_psi_table_pat *pat, + u16 pcr_pid) + +{ + struct vidtv_psi_table_pat_program *program; + struct vidtv_psi_table_pmt **pmt_secs; + u32 i = 0, num_pmt = 0; + + /* + * The number of PMT entries is the number of PAT entries + * that contain service_id. That exclude special tables, like NIT + */ + program = pat->program; + while (program) { + if (program->service_id) + num_pmt++; + program = program->next; + } + + pmt_secs = kcalloc(num_pmt, + sizeof(struct vidtv_psi_table_pmt *), + GFP_KERNEL); + if (!pmt_secs) + return NULL; + + for (program = pat->program; program; program = program->next) { + if (!program->service_id) + continue; + pmt_secs[i] = vidtv_psi_pmt_table_init(be16_to_cpu(program->service_id), + pcr_pid); + + if (!pmt_secs[i]) { + while (i > 0) { + i--; + vidtv_psi_pmt_table_destroy(pmt_secs[i]); + } + return NULL; + } + i++; + } + pat->num_pmt = num_pmt; + + return pmt_secs; +} + +/* find the PMT section associated with 'program_num' */ +struct vidtv_psi_table_pmt +*vidtv_psi_find_pmt_sec(struct vidtv_psi_table_pmt **pmt_sections, + u16 nsections, + u16 program_num) +{ + struct vidtv_psi_table_pmt *sec = NULL; + u32 i; + + for (i = 0; i < nsections; ++i) { + sec = pmt_sections[i]; + if (be16_to_cpu(sec->header.id) == program_num) + return sec; + } + + return NULL; /* not found */ +} + +static void vidtv_psi_nit_table_update_sec_len(struct vidtv_psi_table_nit *nit) +{ + u16 length = 0; + struct vidtv_psi_table_transport *t = nit->transport; + u16 desc_loop_len; + u16 transport_loop_len = 0; + + /* + * from immediately after 'section_length' until + * 'network_descriptor_length' + */ + length += NIT_LEN_UNTIL_NETWORK_DESCRIPTOR_LEN; + + desc_loop_len = vidtv_psi_desc_comp_loop_len(nit->descriptor); + vidtv_psi_set_desc_loop_len(&nit->bitfield, desc_loop_len, 12); + + length += desc_loop_len; + + length += sizeof_field(struct vidtv_psi_table_nit, bitfield2); + + while (t) { + /* skip both pointers at the end */ + transport_loop_len += sizeof(struct vidtv_psi_table_transport) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_transport *); + + length += transport_loop_len; + + desc_loop_len = vidtv_psi_desc_comp_loop_len(t->descriptor); + vidtv_psi_set_desc_loop_len(&t->bitfield, desc_loop_len, 12); + + length += desc_loop_len; + + t = t->next; + } + + // Actually sets the transport stream loop len, maybe rename this function later + vidtv_psi_set_desc_loop_len(&nit->bitfield2, transport_loop_len, 12); + length += CRC_SIZE_IN_BYTES; + + vidtv_psi_set_sec_len(&nit->header, length); +} + +struct vidtv_psi_table_nit +*vidtv_psi_nit_table_init(u16 network_id, + u16 transport_stream_id, + char *network_name, + struct vidtv_psi_desc_service_list_entry *service_list) +{ + struct vidtv_psi_table_transport *transport; + struct vidtv_psi_table_nit *nit; + const u16 SYNTAX = 0x1; + const u16 ONES = 0x03; + const u16 ONE = 0x1; + + nit = kzalloc(sizeof(*nit), GFP_KERNEL); + if (!nit) + return NULL; + + transport = kzalloc(sizeof(*transport), GFP_KERNEL); + if (!transport) + goto free_nit; + + nit->header.table_id = 0x40; // ACTUAL_NETWORK + + nit->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12)); + + nit->header.id = cpu_to_be16(network_id); + nit->header.current_next = ONE; + + nit->header.version = 0x1f; + + nit->header.one2 = ONES; + nit->header.section_id = 0; + nit->header.last_section = 0; + + nit->bitfield = cpu_to_be16(0xf); + nit->bitfield2 = cpu_to_be16(0xf); + + nit->descriptor = (struct vidtv_psi_desc *) + vidtv_psi_network_name_desc_init(NULL, network_name); + if (!nit->descriptor) + goto free_transport; + + transport->transport_id = cpu_to_be16(transport_stream_id); + transport->network_id = cpu_to_be16(network_id); + transport->bitfield = cpu_to_be16(0xf); + transport->descriptor = (struct vidtv_psi_desc *) + vidtv_psi_service_list_desc_init(NULL, service_list); + if (!transport->descriptor) + goto free_nit_desc; + + nit->transport = transport; + + vidtv_psi_nit_table_update_sec_len(nit); + + return nit; + +free_nit_desc: + vidtv_psi_desc_destroy((struct vidtv_psi_desc *)nit->descriptor); + +free_transport: + kfree(transport); +free_nit: + kfree(nit); + return NULL; +} + +u32 vidtv_psi_nit_write_into(struct vidtv_psi_nit_write_args *args) +{ + struct header_write_args h_args = { + .dest_buf = args->buf, + .dest_offset = args->offset, + .h = &args->nit->header, + .pid = VIDTV_NIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct psi_write_args psi_args = { + .dest_buf = args->buf, + .from = &args->nit->bitfield, + .len = sizeof_field(struct vidtv_psi_table_nit, bitfield), + .pid = VIDTV_NIT_PID, + .new_psi_section = false, + .is_crc = false, + .dest_buf_sz = args->buf_sz, + }; + struct desc_write_args d_args = { + .dest_buf = args->buf, + .pid = VIDTV_NIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct crc32_write_args c_args = { + .dest_buf = args->buf, + .pid = VIDTV_NIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct vidtv_psi_desc *table_descriptor = args->nit->descriptor; + struct vidtv_psi_table_transport *transport = args->nit->transport; + struct vidtv_psi_desc *transport_descriptor; + u32 crc = INITIAL_CRC; + u32 nbytes = 0; + + vidtv_psi_nit_table_update_sec_len(args->nit); + + h_args.continuity_counter = args->continuity_counter; + h_args.crc = &crc; + + nbytes += vidtv_psi_table_header_write_into(&h_args); + + /* write the bitfield */ + + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + psi_args.crc = &crc; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + while (table_descriptor) { + /* write the descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.desc = table_descriptor; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + table_descriptor = table_descriptor->next; + } + + /* write the second bitfield */ + psi_args.from = &args->nit->bitfield2; + psi_args.len = sizeof_field(struct vidtv_psi_table_nit, bitfield2); + psi_args.dest_offset = args->offset + nbytes; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + psi_args.len = sizeof_field(struct vidtv_psi_table_transport, transport_id) + + sizeof_field(struct vidtv_psi_table_transport, network_id) + + sizeof_field(struct vidtv_psi_table_transport, bitfield); + while (transport) { + /* write the transport sections, if any */ + psi_args.from = transport; + psi_args.dest_offset = args->offset + nbytes; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + transport_descriptor = transport->descriptor; + + while (transport_descriptor) { + /* write the transport descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.desc = transport_descriptor; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + transport_descriptor = transport_descriptor->next; + } + + transport = transport->next; + } + + c_args.dest_offset = args->offset + nbytes; + c_args.crc = cpu_to_be32(crc); + c_args.continuity_counter = args->continuity_counter; + + /* Write the CRC32 at the end */ + nbytes += table_section_crc32_write_into(&c_args); + + return nbytes; +} + +static void vidtv_psi_transport_destroy(struct vidtv_psi_table_transport *t) +{ + struct vidtv_psi_table_transport *tmp_t = NULL; + struct vidtv_psi_table_transport *curr_t = t; + + while (curr_t) { + tmp_t = curr_t; + curr_t = curr_t->next; + vidtv_psi_desc_destroy(tmp_t->descriptor); + kfree(tmp_t); + } +} + +void vidtv_psi_nit_table_destroy(struct vidtv_psi_table_nit *nit) +{ + vidtv_psi_desc_destroy(nit->descriptor); + vidtv_psi_transport_destroy(nit->transport); + kfree(nit); +} + +void vidtv_psi_eit_table_update_sec_len(struct vidtv_psi_table_eit *eit) +{ + struct vidtv_psi_table_eit_event *e = eit->event; + u16 desc_loop_len; + u16 length = 0; + + /* + * from immediately after 'section_length' until + * 'last_table_id' + */ + length += EIT_LEN_UNTIL_LAST_TABLE_ID; + + while (e) { + /* skip both pointers at the end */ + length += sizeof(struct vidtv_psi_table_eit_event) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_eit_event *); + + desc_loop_len = vidtv_psi_desc_comp_loop_len(e->descriptor); + vidtv_psi_set_desc_loop_len(&e->bitfield, desc_loop_len, 12); + + length += desc_loop_len; + + e = e->next; + } + + length += CRC_SIZE_IN_BYTES; + + vidtv_psi_set_sec_len(&eit->header, length); +} + +void vidtv_psi_eit_event_assign(struct vidtv_psi_table_eit *eit, + struct vidtv_psi_table_eit_event *e) +{ + do { + if (e == eit->event) + return; + + eit->event = e; + vidtv_psi_eit_table_update_sec_len(eit); + + e = NULL; + } while (vidtv_psi_get_sec_len(&eit->header) > EIT_MAX_SECTION_LEN); + + vidtv_psi_update_version_num(&eit->header); +} + +struct vidtv_psi_table_eit +*vidtv_psi_eit_table_init(u16 network_id, + u16 transport_stream_id, + __be16 service_id) +{ + struct vidtv_psi_table_eit *eit; + const u16 SYNTAX = 0x1; + const u16 ONE = 0x1; + const u16 ONES = 0x03; + + eit = kzalloc(sizeof(*eit), GFP_KERNEL); + if (!eit) + return NULL; + + eit->header.table_id = 0x4e; //actual_transport_stream: present/following + + eit->header.bitfield = cpu_to_be16((SYNTAX << 15) | (ONE << 14) | (ONES << 12)); + + eit->header.id = service_id; + eit->header.current_next = ONE; + + eit->header.version = 0x1f; + + eit->header.one2 = ONES; + eit->header.section_id = 0; + eit->header.last_section = 0; + + eit->transport_id = cpu_to_be16(transport_stream_id); + eit->network_id = cpu_to_be16(network_id); + + eit->last_segment = eit->header.last_section; /* not implemented */ + eit->last_table_id = eit->header.table_id; /* not implemented */ + + vidtv_psi_eit_table_update_sec_len(eit); + + return eit; +} + +u32 vidtv_psi_eit_write_into(struct vidtv_psi_eit_write_args *args) +{ + struct header_write_args h_args = { + .dest_buf = args->buf, + .dest_offset = args->offset, + .h = &args->eit->header, + .pid = VIDTV_EIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct psi_write_args psi_args = { + .dest_buf = args->buf, + .len = sizeof_field(struct vidtv_psi_table_eit, transport_id) + + sizeof_field(struct vidtv_psi_table_eit, network_id) + + sizeof_field(struct vidtv_psi_table_eit, last_segment) + + sizeof_field(struct vidtv_psi_table_eit, last_table_id), + .pid = VIDTV_EIT_PID, + .new_psi_section = false, + .is_crc = false, + .dest_buf_sz = args->buf_sz, + }; + struct desc_write_args d_args = { + .dest_buf = args->buf, + .pid = VIDTV_EIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct crc32_write_args c_args = { + .dest_buf = args->buf, + .pid = VIDTV_EIT_PID, + .dest_buf_sz = args->buf_sz, + }; + struct vidtv_psi_table_eit_event *event = args->eit->event; + struct vidtv_psi_desc *event_descriptor; + u32 crc = INITIAL_CRC; + u32 nbytes = 0; + + vidtv_psi_eit_table_update_sec_len(args->eit); + + h_args.continuity_counter = args->continuity_counter; + h_args.crc = &crc; + + nbytes += vidtv_psi_table_header_write_into(&h_args); + + psi_args.from = &args->eit->transport_id; + psi_args.dest_offset = args->offset + nbytes; + psi_args.continuity_counter = args->continuity_counter; + psi_args.crc = &crc; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + /* skip both pointers at the end */ + psi_args.len = sizeof(struct vidtv_psi_table_eit_event) - + sizeof(struct vidtv_psi_desc *) - + sizeof(struct vidtv_psi_table_eit_event *); + while (event) { + /* copy the events, if any */ + psi_args.from = event; + psi_args.dest_offset = args->offset + nbytes; + + nbytes += vidtv_psi_ts_psi_write_into(&psi_args); + + event_descriptor = event->descriptor; + + while (event_descriptor) { + /* copy the event descriptors, if any */ + d_args.dest_offset = args->offset + nbytes; + d_args.desc = event_descriptor; + d_args.continuity_counter = args->continuity_counter; + d_args.crc = &crc; + + nbytes += vidtv_psi_desc_write_into(&d_args); + + event_descriptor = event_descriptor->next; + } + + event = event->next; + } + + c_args.dest_offset = args->offset + nbytes; + c_args.crc = cpu_to_be32(crc); + c_args.continuity_counter = args->continuity_counter; + + /* Write the CRC at the end */ + nbytes += table_section_crc32_write_into(&c_args); + + return nbytes; +} + +struct vidtv_psi_table_eit_event +*vidtv_psi_eit_event_init(struct vidtv_psi_table_eit_event *head, u16 event_id) +{ + const u8 DURATION[] = {0x23, 0x59, 0x59}; /* BCD encoded */ + struct vidtv_psi_table_eit_event *e; + struct timespec64 ts; + struct tm time; + int mjd, l; + __be16 mjd_be; + + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) + return NULL; + + e->event_id = cpu_to_be16(event_id); + + ts = ktime_to_timespec64(ktime_get_real()); + time64_to_tm(ts.tv_sec, 0, &time); + + /* Convert date to Modified Julian Date - per EN 300 468 Annex C */ + if (time.tm_mon < 2) + l = 1; + else + l = 0; + + mjd = 14956 + time.tm_mday; + mjd += (time.tm_year - l) * 36525 / 100; + mjd += (time.tm_mon + 2 + l * 12) * 306001 / 10000; + mjd_be = cpu_to_be16(mjd); + + /* + * Store MJD and hour/min/sec to the event. + * + * Let's make the event to start on a full hour + */ + memcpy(e->start_time, &mjd_be, sizeof(mjd_be)); + e->start_time[2] = bin2bcd(time.tm_hour); + e->start_time[3] = 0; + e->start_time[4] = 0; + + /* + * TODO: for now, the event will last for a day. Should be + * enough for testing purposes, but if one runs the driver + * for more than that, the current event will become invalid. + * So, we need a better code here in order to change the start + * time once the event expires. + */ + memcpy(e->duration, DURATION, sizeof(e->duration)); + + e->bitfield = cpu_to_be16(RUNNING << 13); + + if (head) { + while (head->next) + head = head->next; + + head->next = e; + } + + return e; +} + +void vidtv_psi_eit_event_destroy(struct vidtv_psi_table_eit_event *e) +{ + struct vidtv_psi_table_eit_event *tmp_e = NULL; + struct vidtv_psi_table_eit_event *curr_e = e; + + while (curr_e) { + tmp_e = curr_e; + curr_e = curr_e->next; + vidtv_psi_desc_destroy(tmp_e->descriptor); + kfree(tmp_e); + } +} + +void vidtv_psi_eit_table_destroy(struct vidtv_psi_table_eit *eit) +{ + vidtv_psi_eit_event_destroy(eit->event); + kfree(eit); +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_psi.h b/drivers/media/test-drivers/vidtv/vidtv_psi.h new file mode 100644 index 000000000..fdc825e54 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_psi.h @@ -0,0 +1,809 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * This file contains the logic to work with MPEG Program-Specific Information. + * These are defined both in ISO/IEC 13818-1 (systems) and ETSI EN 300 468. + * PSI is carried in the form of table structures, and although each table might + * technically be broken into one or more sections, we do not do this here, + * hence 'table' and 'section' are interchangeable for vidtv. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_PSI_H +#define VIDTV_PSI_H + +#include <linux/types.h> + +/* + * all section lengths start immediately after the 'section_length' field + * see ISO/IEC 13818-1 : 2000 and ETSI EN 300 468 V 1.10.1 for + * reference + */ +#define PAT_LEN_UNTIL_LAST_SECTION_NUMBER 5 +#define PMT_LEN_UNTIL_PROGRAM_INFO_LENGTH 9 +#define SDT_LEN_UNTIL_RESERVED_FOR_FUTURE_USE 8 +#define NIT_LEN_UNTIL_NETWORK_DESCRIPTOR_LEN 7 +#define EIT_LEN_UNTIL_LAST_TABLE_ID 11 +#define MAX_SECTION_LEN 1021 +#define EIT_MAX_SECTION_LEN 4093 /* see ETSI 300 468 v.1.10.1 p. 26 */ +#define VIDTV_PAT_PID 0 /* mandated by the specs */ +#define VIDTV_SDT_PID 0x0011 /* mandated by the specs */ +#define VIDTV_NIT_PID 0x0010 /* mandated by the specs */ +#define VIDTV_EIT_PID 0x0012 /*mandated by the specs */ + +enum vidtv_psi_descriptors { + REGISTRATION_DESCRIPTOR = 0x05, /* See ISO/IEC 13818-1 section 2.6.8 */ + NETWORK_NAME_DESCRIPTOR = 0x40, /* See ETSI EN 300 468 section 6.2.27 */ + SERVICE_LIST_DESCRIPTOR = 0x41, /* See ETSI EN 300 468 section 6.2.35 */ + SERVICE_DESCRIPTOR = 0x48, /* See ETSI EN 300 468 section 6.2.33 */ + SHORT_EVENT_DESCRIPTOR = 0x4d, /* See ETSI EN 300 468 section 6.2.37 */ +}; + +enum vidtv_psi_stream_types { + STREAM_PRIVATE_DATA = 0x06, /* see ISO/IEC 13818-1 2000 p. 48 */ +}; + +/* + * struct vidtv_psi_desc - A generic PSI descriptor type. + * The descriptor length is an 8-bit field specifying the total number of bytes of the data portion + * of the descriptor following the byte defining the value of this field. + */ +struct vidtv_psi_desc { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + u8 data[]; +} __packed; + +/* + * struct vidtv_psi_desc_service - Service descriptor. + * See ETSI EN 300 468 section 6.2.33. + */ +struct vidtv_psi_desc_service { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + + u8 service_type; + u8 provider_name_len; + char *provider_name; + u8 service_name_len; + char *service_name; +} __packed; + +/* + * struct vidtv_psi_desc_registration - A registration descriptor. + * See ISO/IEC 13818-1 section 2.6.8 + */ +struct vidtv_psi_desc_registration { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + + /* + * The format_identifier is a 32-bit value obtained from a Registration + * Authority as designated by ISO/IEC JTC 1/SC 29. + */ + __be32 format_id; + /* + * The meaning of additional_identification_info bytes, if any, are + * defined by the assignee of that format_identifier, and once defined + * they shall not change. + */ + u8 additional_identification_info[]; +} __packed; + +/* + * struct vidtv_psi_desc_network_name - A network name descriptor + * see ETSI EN 300 468 v1.15.1 section 6.2.27 + */ +struct vidtv_psi_desc_network_name { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + char *network_name; +} __packed; + +struct vidtv_psi_desc_service_list_entry { + __be16 service_id; + u8 service_type; + struct vidtv_psi_desc_service_list_entry *next; +} __packed; + +/* + * struct vidtv_psi_desc_service_list - A service list descriptor + * see ETSI EN 300 468 v1.15.1 section 6.2.35 + */ +struct vidtv_psi_desc_service_list { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + struct vidtv_psi_desc_service_list_entry *service_list; +} __packed; + +/* + * struct vidtv_psi_desc_short_event - A short event descriptor + * see ETSI EN 300 468 v1.15.1 section 6.2.37 + */ +struct vidtv_psi_desc_short_event { + struct vidtv_psi_desc *next; + u8 type; + u8 length; + char *iso_language_code; + u8 event_name_len; + char *event_name; + u8 text_len; + char *text; +} __packed; + +struct vidtv_psi_desc_short_event +*vidtv_psi_short_event_desc_init(struct vidtv_psi_desc *head, + char *iso_language_code, + char *event_name, + char *text); + +/* + * struct vidtv_psi_table_header - A header that is present for all PSI tables. + */ +struct vidtv_psi_table_header { + u8 table_id; + + __be16 bitfield; /* syntax: 1, zero: 1, one: 2, section_length: 13 */ + + __be16 id; /* TS ID */ + u8 current_next:1; + u8 version:5; + u8 one2:2; + u8 section_id; /* section_number */ + u8 last_section; /* last_section_number */ +} __packed; + +/* + * struct vidtv_psi_table_pat_program - A single program in the PAT + * See ISO/IEC 13818-1 : 2000 p.43 + */ +struct vidtv_psi_table_pat_program { + __be16 service_id; + __be16 bitfield; /* reserved: 3, program_map_pid/network_pid: 13 */ + struct vidtv_psi_table_pat_program *next; +} __packed; + +/* + * struct vidtv_psi_table_pat - The Program Allocation Table (PAT) + * See ISO/IEC 13818-1 : 2000 p.43 + */ +struct vidtv_psi_table_pat { + struct vidtv_psi_table_header header; + u16 num_pat; + u16 num_pmt; + struct vidtv_psi_table_pat_program *program; +} __packed; + +/* + * struct vidtv_psi_table_sdt_service - Represents a service in the SDT. + * see ETSI EN 300 468 v1.15.1 section 5.2.3. + */ +struct vidtv_psi_table_sdt_service { + __be16 service_id; + u8 EIT_present_following:1; + u8 EIT_schedule:1; + u8 reserved:6; + __be16 bitfield; /* running_status: 3, free_ca:1, desc_loop_len:12 */ + struct vidtv_psi_desc *descriptor; + struct vidtv_psi_table_sdt_service *next; +} __packed; + +/* + * struct vidtv_psi_table_sdt - Represents the Service Description Table + * see ETSI EN 300 468 v1.15.1 section 5.2.3. + */ + +struct vidtv_psi_table_sdt { + struct vidtv_psi_table_header header; + __be16 network_id; /* original_network_id */ + u8 reserved; + struct vidtv_psi_table_sdt_service *service; +} __packed; + +/* + * enum service_running_status - Status of a SDT service. + * see ETSI EN 300 468 v1.15.1 section 5.2.3 table 6. + */ +enum service_running_status { + RUNNING = 0x4, +}; + +/* + * enum service_type - The type of a SDT service. + * see ETSI EN 300 468 v1.15.1 section 6.2.33, table 81. + */ +enum service_type { + /* see ETSI EN 300 468 v1.15.1 p. 77 */ + DIGITAL_TELEVISION_SERVICE = 0x1, + DIGITAL_RADIO_SOUND_SERVICE = 0X2, +}; + +/* + * struct vidtv_psi_table_pmt_stream - A single stream in the PMT. + * See ISO/IEC 13818-1 : 2000 p.46. + */ +struct vidtv_psi_table_pmt_stream { + u8 type; + __be16 bitfield; /* reserved: 3, elementary_pid: 13 */ + __be16 bitfield2; /*reserved: 4, zero: 2, desc_length: 10 */ + struct vidtv_psi_desc *descriptor; + struct vidtv_psi_table_pmt_stream *next; +} __packed; + +/* + * struct vidtv_psi_table_pmt - The Program Map Table (PMT). + * See ISO/IEC 13818-1 : 2000 p.46. + */ +struct vidtv_psi_table_pmt { + struct vidtv_psi_table_header header; + __be16 bitfield; /* reserved:3, pcr_pid: 13 */ + __be16 bitfield2; /* reserved: 4, zero: 2, desc_len: 10 */ + struct vidtv_psi_desc *descriptor; + struct vidtv_psi_table_pmt_stream *stream; +} __packed; + +/** + * struct psi_write_args - Arguments for the PSI packetizer. + * @dest_buf: The buffer to write into. + * @from: PSI data to be copied. + * @len: How much to write. + * @dest_offset: where to start writing in the dest_buffer. + * @pid: TS packet ID. + * @new_psi_section: Set when starting a table section. + * @continuity_counter: Incremented on every new packet. + * @is_crc: Set when writing the CRC at the end. + * @dest_buf_sz: The size of the dest_buffer + * @crc: a pointer to store the crc for this chunk + */ +struct psi_write_args { + void *dest_buf; + void *from; + size_t len; + u32 dest_offset; + u16 pid; + bool new_psi_section; + u8 *continuity_counter; + bool is_crc; + u32 dest_buf_sz; + u32 *crc; +}; + +/** + * struct desc_write_args - Arguments in order to write a descriptor. + * @dest_buf: The buffer to write into. + * @dest_offset: where to start writing in the dest_buffer. + * @desc: A pointer to the descriptor + * @pid: TS packet ID. + * @continuity_counter: Incremented on every new packet. + * @dest_buf_sz: The size of the dest_buffer + * @crc: a pointer to store the crc for this chunk + */ +struct desc_write_args { + void *dest_buf; + u32 dest_offset; + struct vidtv_psi_desc *desc; + u16 pid; + u8 *continuity_counter; + u32 dest_buf_sz; + u32 *crc; +}; + +/** + * struct crc32_write_args - Arguments in order to write the CRC at the end of + * the PSI tables. + * @dest_buf: The buffer to write into. + * @dest_offset: where to start writing in the dest_buffer. + * @crc: the CRC value to write + * @pid: TS packet ID. + * @continuity_counter: Incremented on every new packet. + * @dest_buf_sz: The size of the dest_buffer + */ +struct crc32_write_args { + void *dest_buf; + u32 dest_offset; + __be32 crc; + u16 pid; + u8 *continuity_counter; + u32 dest_buf_sz; +}; + +/** + * struct header_write_args - Arguments in order to write the common table + * header + * @dest_buf: The buffer to write into. + * @dest_offset: where to start writing in the dest_buffer. + * @h: a pointer to the header. + * @pid: TS packet ID. + * @continuity_counter: Incremented on every new packet. + * @dest_buf_sz: The size of the dest_buffer + * @crc: a pointer to store the crc for this chunk + */ +struct header_write_args { + void *dest_buf; + u32 dest_offset; + struct vidtv_psi_table_header *h; + u16 pid; + u8 *continuity_counter; + u32 dest_buf_sz; + u32 *crc; +}; + +struct vidtv_psi_desc_service *vidtv_psi_service_desc_init(struct vidtv_psi_desc *head, + enum service_type service_type, + char *service_name, + char *provider_name); + +struct vidtv_psi_desc_registration +*vidtv_psi_registration_desc_init(struct vidtv_psi_desc *head, + __be32 format_id, + u8 *additional_ident_info, + u32 additional_info_len); + +struct vidtv_psi_desc_network_name +*vidtv_psi_network_name_desc_init(struct vidtv_psi_desc *head, char *network_name); + +struct vidtv_psi_desc_service_list +*vidtv_psi_service_list_desc_init(struct vidtv_psi_desc *head, + struct vidtv_psi_desc_service_list_entry *entry); + +struct vidtv_psi_table_pat_program +*vidtv_psi_pat_program_init(struct vidtv_psi_table_pat_program *head, + u16 service_id, + u16 program_map_pid); + +struct vidtv_psi_table_pmt_stream* +vidtv_psi_pmt_stream_init(struct vidtv_psi_table_pmt_stream *head, + enum vidtv_psi_stream_types stream_type, + u16 es_pid); + +struct vidtv_psi_table_pat *vidtv_psi_pat_table_init(u16 transport_stream_id); + +struct vidtv_psi_table_pmt *vidtv_psi_pmt_table_init(u16 program_number, + u16 pcr_pid); + +struct vidtv_psi_table_sdt *vidtv_psi_sdt_table_init(u16 network_id, + u16 transport_stream_id); + +struct vidtv_psi_table_sdt_service* +vidtv_psi_sdt_service_init(struct vidtv_psi_table_sdt_service *head, + u16 service_id, + bool eit_schedule, + bool eit_present_following); + +void +vidtv_psi_desc_destroy(struct vidtv_psi_desc *desc); + +void +vidtv_psi_pat_program_destroy(struct vidtv_psi_table_pat_program *p); + +void +vidtv_psi_pat_table_destroy(struct vidtv_psi_table_pat *p); + +void +vidtv_psi_pmt_stream_destroy(struct vidtv_psi_table_pmt_stream *s); + +void +vidtv_psi_pmt_table_destroy(struct vidtv_psi_table_pmt *pmt); + +void +vidtv_psi_sdt_table_destroy(struct vidtv_psi_table_sdt *sdt); + +void +vidtv_psi_sdt_service_destroy(struct vidtv_psi_table_sdt_service *service); + +/** + * vidtv_psi_sdt_service_assign - Assigns the service loop to the SDT. + * @sdt: The SDT to assign to. + * @service: The service loop (one or more services) + * + * This will free the previous service loop in the table. + * This will assign ownership of the service loop to the table, i.e. the table + * will free this service loop when a call to its destroy function is made. + */ +void +vidtv_psi_sdt_service_assign(struct vidtv_psi_table_sdt *sdt, + struct vidtv_psi_table_sdt_service *service); + +/** + * vidtv_psi_desc_assign - Assigns a descriptor loop at some point + * @to: Where to assign this descriptor loop to + * @desc: The descriptor loop that will be assigned. + * + * This will free the loop in 'to', if any. + */ +void vidtv_psi_desc_assign(struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc); + +/** + * vidtv_pmt_desc_assign - Assigns a descriptor loop at some point in a PMT section. + * @pmt: The PMT section that will contain the descriptor loop + * @to: Where in the PMT to assign this descriptor loop to + * @desc: The descriptor loop that will be assigned. + * + * This will free the loop in 'to', if any. + * This will assign ownership of the loop to the table, i.e. the table + * will free this loop when a call to its destroy function is made. + */ +void vidtv_pmt_desc_assign(struct vidtv_psi_table_pmt *pmt, + struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc); + +/** + * vidtv_sdt_desc_assign - Assigns a descriptor loop at some point in a SDT. + * @sdt: The SDT that will contain the descriptor loop + * @to: Where in the PMT to assign this descriptor loop to + * @desc: The descriptor loop that will be assigned. + * + * This will free the loop in 'to', if any. + * This will assign ownership of the loop to the table, i.e. the table + * will free this loop when a call to its destroy function is made. + */ +void vidtv_sdt_desc_assign(struct vidtv_psi_table_sdt *sdt, + struct vidtv_psi_desc **to, + struct vidtv_psi_desc *desc); + +/** + * vidtv_psi_pat_program_assign - Assigns the program loop to the PAT. + * @pat: The PAT to assign to. + * @p: The program loop (one or more programs) + * + * This will free the previous program loop in the table. + * This will assign ownership of the program loop to the table, i.e. the table + * will free this program loop when a call to its destroy function is made. + */ +void vidtv_psi_pat_program_assign(struct vidtv_psi_table_pat *pat, + struct vidtv_psi_table_pat_program *p); + +/** + * vidtv_psi_pmt_stream_assign - Assigns the stream loop to the PAT. + * @pmt: The PMT to assign to. + * @s: The stream loop (one or more streams) + * + * This will free the previous stream loop in the table. + * This will assign ownership of the stream loop to the table, i.e. the table + * will free this stream loop when a call to its destroy function is made. + */ +void vidtv_psi_pmt_stream_assign(struct vidtv_psi_table_pmt *pmt, + struct vidtv_psi_table_pmt_stream *s); + +struct vidtv_psi_desc *vidtv_psi_desc_clone(struct vidtv_psi_desc *desc); + +/** + * vidtv_psi_pmt_create_sec_for_each_pat_entry - Create a PMT section for each + * program found in the PAT + * @pat: The PAT to look for programs. + * @pcr_pid: packet ID for the PCR to be used for the program described in this + * PMT section + */ +struct vidtv_psi_table_pmt** +vidtv_psi_pmt_create_sec_for_each_pat_entry(struct vidtv_psi_table_pat *pat, u16 pcr_pid); + +/** + * vidtv_psi_pmt_get_pid - Get the TS PID for a PMT section. + * @section: The PMT section whose PID we want to retrieve. + * @pat: The PAT table to look into. + * + * Returns: the TS PID for 'section' + */ +u16 vidtv_psi_pmt_get_pid(struct vidtv_psi_table_pmt *section, + struct vidtv_psi_table_pat *pat); + +/** + * vidtv_psi_pat_table_update_sec_len - Recompute and update the PAT section length. + * @pat: The PAT whose length is to be updated. + * + * This will traverse the table and accumulate the length of its components, + * which is then used to replace the 'section_length' field. + * + * If section_length > MAX_SECTION_LEN, the operation fails. + */ +void vidtv_psi_pat_table_update_sec_len(struct vidtv_psi_table_pat *pat); + +/** + * vidtv_psi_pmt_table_update_sec_len - Recompute and update the PMT section length. + * @pmt: The PMT whose length is to be updated. + * + * This will traverse the table and accumulate the length of its components, + * which is then used to replace the 'section_length' field. + * + * If section_length > MAX_SECTION_LEN, the operation fails. + */ +void vidtv_psi_pmt_table_update_sec_len(struct vidtv_psi_table_pmt *pmt); + +/** + * vidtv_psi_sdt_table_update_sec_len - Recompute and update the SDT section length. + * @sdt: The SDT whose length is to be updated. + * + * This will traverse the table and accumulate the length of its components, + * which is then used to replace the 'section_length' field. + * + * If section_length > MAX_SECTION_LEN, the operation fails. + */ +void vidtv_psi_sdt_table_update_sec_len(struct vidtv_psi_table_sdt *sdt); + +/** + * struct vidtv_psi_pat_write_args - Arguments for writing a PAT table + * @buf: The destination buffer. + * @offset: The offset into the destination buffer. + * @pat: A pointer to the PAT. + * @buf_sz: The size of the destination buffer. + * @continuity_counter: A pointer to the CC. Incremented on every new packet. + * + */ +struct vidtv_psi_pat_write_args { + char *buf; + u32 offset; + struct vidtv_psi_table_pat *pat; + u32 buf_sz; + u8 *continuity_counter; +}; + +/** + * vidtv_psi_pat_write_into - Write PAT as MPEG-TS packets into a buffer. + * @args: An instance of struct vidtv_psi_pat_write_args + * + * This function writes the MPEG TS packets for a PAT table into a buffer. + * Calling code will usually generate the PAT via a call to its init function + * and thus is responsible for freeing it. + * + * Return: The number of bytes written into the buffer. This is NOT + * equal to the size of the PAT, since more space is needed for TS headers during TS + * encapsulation. + */ +u32 vidtv_psi_pat_write_into(struct vidtv_psi_pat_write_args *args); + +/** + * struct vidtv_psi_sdt_write_args - Arguments for writing a SDT table + * @buf: The destination buffer. + * @offset: The offset into the destination buffer. + * @sdt: A pointer to the SDT. + * @buf_sz: The size of the destination buffer. + * @continuity_counter: A pointer to the CC. Incremented on every new packet. + * + */ + +struct vidtv_psi_sdt_write_args { + char *buf; + u32 offset; + struct vidtv_psi_table_sdt *sdt; + u32 buf_sz; + u8 *continuity_counter; +}; + +/** + * vidtv_psi_sdt_write_into - Write SDT as MPEG-TS packets into a buffer. + * @args: an instance of struct vidtv_psi_sdt_write_args + * + * This function writes the MPEG TS packets for a SDT table into a buffer. + * Calling code will usually generate the SDT via a call to its init function + * and thus is responsible for freeing it. + * + * Return: The number of bytes written into the buffer. This is NOT + * equal to the size of the SDT, since more space is needed for TS headers during TS + * encapsulation. + */ +u32 vidtv_psi_sdt_write_into(struct vidtv_psi_sdt_write_args *args); + +/** + * struct vidtv_psi_pmt_write_args - Arguments for writing a PMT section + * @buf: The destination buffer. + * @offset: The offset into the destination buffer. + * @pmt: A pointer to the PMT. + * @pid: Program ID + * @buf_sz: The size of the destination buffer. + * @continuity_counter: A pointer to the CC. Incremented on every new packet. + * @pcr_pid: The TS PID used for the PSI packets. All channels will share the + * same PCR. + */ +struct vidtv_psi_pmt_write_args { + char *buf; + u32 offset; + struct vidtv_psi_table_pmt *pmt; + u16 pid; + u32 buf_sz; + u8 *continuity_counter; + u16 pcr_pid; +}; + +/** + * vidtv_psi_pmt_write_into - Write PMT as MPEG-TS packets into a buffer. + * @args: an instance of struct vidtv_psi_pmt_write_args + * + * This function writes the MPEG TS packets for a PMT section into a buffer. + * Calling code will usually generate the PMT section via a call to its init function + * and thus is responsible for freeing it. + * + * Return: The number of bytes written into the buffer. This is NOT + * equal to the size of the PMT section, since more space is needed for TS headers + * during TS encapsulation. + */ +u32 vidtv_psi_pmt_write_into(struct vidtv_psi_pmt_write_args *args); + +/** + * vidtv_psi_find_pmt_sec - Finds the PMT section for 'program_num' + * @pmt_sections: The sections to look into. + * @nsections: The number of sections. + * @program_num: The 'program_num' from PAT pointing to a PMT section. + * + * Return: A pointer to the PMT, if found, or NULL. + */ +struct vidtv_psi_table_pmt *vidtv_psi_find_pmt_sec(struct vidtv_psi_table_pmt **pmt_sections, + u16 nsections, + u16 program_num); + +u16 vidtv_psi_get_pat_program_pid(struct vidtv_psi_table_pat_program *p); +u16 vidtv_psi_pmt_stream_get_elem_pid(struct vidtv_psi_table_pmt_stream *s); + +/** + * struct vidtv_psi_table_transport - A entry in the TS loop for the NIT and/or other tables. + * See ETSI 300 468 section 5.2.1 + * @transport_id: The TS ID being described + * @network_id: The network_id that contains the TS ID + * @bitfield: Contains the descriptor loop length + * @descriptor: A descriptor loop + * @next: Pointer to the next entry + * + */ +struct vidtv_psi_table_transport { + __be16 transport_id; + __be16 network_id; + __be16 bitfield; /* desc_len: 12, reserved: 4 */ + struct vidtv_psi_desc *descriptor; + struct vidtv_psi_table_transport *next; +} __packed; + +/** + * struct vidtv_psi_table_nit - A Network Information Table (NIT). See ETSI 300 + * 468 section 5.2.1 + * @header: A PSI table header + * @bitfield: Contains the network descriptor length + * @descriptor: A descriptor loop describing the network + * @bitfield2: Contains the transport stream loop length + * @transport: The transport stream loop + * + */ +struct vidtv_psi_table_nit { + struct vidtv_psi_table_header header; + __be16 bitfield; /* network_desc_len: 12, reserved:4 */ + struct vidtv_psi_desc *descriptor; + __be16 bitfield2; /* ts_loop_len: 12, reserved: 4 */ + struct vidtv_psi_table_transport *transport; +} __packed; + +struct vidtv_psi_table_nit +*vidtv_psi_nit_table_init(u16 network_id, + u16 transport_stream_id, + char *network_name, + struct vidtv_psi_desc_service_list_entry *service_list); + +/** + * struct vidtv_psi_nit_write_args - Arguments for writing a NIT section + * @buf: The destination buffer. + * @offset: The offset into the destination buffer. + * @nit: A pointer to the NIT + * @buf_sz: The size of the destination buffer. + * @continuity_counter: A pointer to the CC. Incremented on every new packet. + * + */ +struct vidtv_psi_nit_write_args { + char *buf; + u32 offset; + struct vidtv_psi_table_nit *nit; + u32 buf_sz; + u8 *continuity_counter; +}; + +/** + * vidtv_psi_nit_write_into - Write NIT as MPEG-TS packets into a buffer. + * @args: an instance of struct vidtv_psi_nit_write_args + * + * This function writes the MPEG TS packets for a NIT table into a buffer. + * Calling code will usually generate the NIT via a call to its init function + * and thus is responsible for freeing it. + * + * Return: The number of bytes written into the buffer. This is NOT + * equal to the size of the NIT, since more space is needed for TS headers during TS + * encapsulation. + */ +u32 vidtv_psi_nit_write_into(struct vidtv_psi_nit_write_args *args); + +void vidtv_psi_nit_table_destroy(struct vidtv_psi_table_nit *nit); + +/* + * struct vidtv_psi_desc_short_event - A short event descriptor + * see ETSI EN 300 468 v1.15.1 section 6.2.37 + */ +struct vidtv_psi_table_eit_event { + __be16 event_id; + u8 start_time[5]; + u8 duration[3]; + __be16 bitfield; /* desc_length: 12, free_CA_mode: 1, running_status: 1 */ + struct vidtv_psi_desc *descriptor; + struct vidtv_psi_table_eit_event *next; +} __packed; + +/* + * struct vidtv_psi_table_eit - A Event Information Table (EIT) + * See ETSI 300 468 section 5.2.4 + */ +struct vidtv_psi_table_eit { + struct vidtv_psi_table_header header; + __be16 transport_id; + __be16 network_id; + u8 last_segment; + u8 last_table_id; + struct vidtv_psi_table_eit_event *event; +} __packed; + +struct vidtv_psi_table_eit +*vidtv_psi_eit_table_init(u16 network_id, + u16 transport_stream_id, + __be16 service_id); + +/** + * struct vidtv_psi_eit_write_args - Arguments for writing an EIT section + * @buf: The destination buffer. + * @offset: The offset into the destination buffer. + * @eit: A pointer to the EIT + * @buf_sz: The size of the destination buffer. + * @continuity_counter: A pointer to the CC. Incremented on every new packet. + * + */ +struct vidtv_psi_eit_write_args { + char *buf; + u32 offset; + struct vidtv_psi_table_eit *eit; + u32 buf_sz; + u8 *continuity_counter; +}; + +/** + * vidtv_psi_eit_write_into - Write EIT as MPEG-TS packets into a buffer. + * @args: an instance of struct vidtv_psi_nit_write_args + * + * This function writes the MPEG TS packets for a EIT table into a buffer. + * Calling code will usually generate the EIT via a call to its init function + * and thus is responsible for freeing it. + * + * Return: The number of bytes written into the buffer. This is NOT + * equal to the size of the EIT, since more space is needed for TS headers during TS + * encapsulation. + */ +u32 vidtv_psi_eit_write_into(struct vidtv_psi_eit_write_args *args); + +void vidtv_psi_eit_table_destroy(struct vidtv_psi_table_eit *eit); + +/** + * vidtv_psi_eit_table_update_sec_len - Recompute and update the EIT section length. + * @eit: The EIT whose length is to be updated. + * + * This will traverse the table and accumulate the length of its components, + * which is then used to replace the 'section_length' field. + * + * If section_length > EIT_MAX_SECTION_LEN, the operation fails. + */ +void vidtv_psi_eit_table_update_sec_len(struct vidtv_psi_table_eit *eit); + +/** + * vidtv_psi_eit_event_assign - Assigns the event loop to the EIT. + * @eit: The EIT to assign to. + * @e: The event loop + * + * This will free the previous event loop in the table. + * This will assign ownership of the stream loop to the table, i.e. the table + * will free this stream loop when a call to its destroy function is made. + */ +void vidtv_psi_eit_event_assign(struct vidtv_psi_table_eit *eit, + struct vidtv_psi_table_eit_event *e); + +struct vidtv_psi_table_eit_event +*vidtv_psi_eit_event_init(struct vidtv_psi_table_eit_event *head, u16 event_id); + +void vidtv_psi_eit_event_destroy(struct vidtv_psi_table_eit_event *e); + +#endif // VIDTV_PSI_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.c b/drivers/media/test-drivers/vidtv/vidtv_s302m.c new file mode 100644 index 000000000..9da18eac0 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.c @@ -0,0 +1,524 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the code for an AES3 (also known as AES/EBU) encoder. + * It is based on EBU Tech 3250 and SMPTE 302M technical documents. + * + * This encoder currently supports 16bit AES3 subframes using 16bit signed + * integers. + * + * Note: AU stands for Access Unit, and AAU stands for Audio Access Unit + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__ + +#include <linux/bug.h> +#include <linux/crc32.h> +#include <linux/fixp-arith.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/math64.h> +#include <linux/printk.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/vmalloc.h> + +#include "vidtv_common.h" +#include "vidtv_encoder.h" +#include "vidtv_s302m.h" + +#define S302M_SAMPLING_RATE_HZ 48000 +#define PES_PRIVATE_STREAM_1 0xbd /* PES: private_stream_1 */ +#define S302M_BLOCK_SZ 192 +#define S302M_SIN_LUT_NUM_ELEM 1024 + +/* these are retrieved empirically from ffmpeg/libavcodec */ +#define FF_S302M_DEFAULT_NUM_FRAMES 1115 +#define FF_S302M_DEFAULT_PTS_INCREMENT 2090 +#define FF_S302M_DEFAULT_PTS_OFFSET 100000 + +/* Used by the tone generator: number of samples for PI */ +#define PI 180 + +static const u8 reverse[256] = { + /* from ffmpeg */ + 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, + 0x30, 0xB0, 0x70, 0xF0, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, + 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 0x04, 0x84, 0x44, 0xC4, + 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, + 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, + 0x3C, 0xBC, 0x7C, 0xFC, 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, + 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, 0x0A, 0x8A, 0x4A, 0xCA, + 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, + 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, + 0x36, 0xB6, 0x76, 0xF6, 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, + 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, 0x01, 0x81, 0x41, 0xC1, + 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, + 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, + 0x39, 0xB9, 0x79, 0xF9, 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, + 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, 0x0D, 0x8D, 0x4D, 0xCD, + 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, + 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, + 0x33, 0xB3, 0x73, 0xF3, 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, + 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, 0x07, 0x87, 0x47, 0xC7, + 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, + 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, + 0x3F, 0xBF, 0x7F, 0xFF, +}; + +struct tone_duration { + enum musical_notes note; + int duration; +}; + +#define COMPASS 100 /* beats per minute */ +static const struct tone_duration beethoven_fur_elise[] = { + { NOTE_SILENT, 512}, + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_GS_5, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_5, 128}, + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_C_6, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_SILENT, 128}, + + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_GS_5, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_5, 128}, + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_C_6, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_B_4, 128}, + { NOTE_C_5, 128}, { NOTE_D_5, 128}, { NOTE_C_4, 128}, + { NOTE_G_4, 128}, { NOTE_C_5, 128}, { NOTE_G_4, 128}, + { NOTE_F_5, 128}, { NOTE_E_5, 128}, { NOTE_G_3, 128}, + { NOTE_G_4, 128}, { NOTE_B_3, 128}, { NOTE_F_4, 128}, + { NOTE_E_5, 128}, { NOTE_D_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_4, 128}, + { NOTE_D_5, 128}, { NOTE_C_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_E_5, 128}, { NOTE_E_5, 128}, + { NOTE_E_6, 128}, { NOTE_E_5, 128}, { NOTE_E_6, 128}, + { NOTE_E_5, 128}, { NOTE_E_5, 128}, { NOTE_DS_5, 128}, + { NOTE_E_5, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_5, 128}, { NOTE_E_5, 128}, { NOTE_DS_6, 128}, + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_GS_5, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_5, 128}, + { NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128}, + { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128}, + { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128}, + { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128}, + { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128}, + { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128}, + { NOTE_C_6, 128}, { NOTE_B_5, 128}, { NOTE_A_5, 512}, + { NOTE_SILENT, 256}, +}; + +static struct vidtv_access_unit *vidtv_s302m_access_unit_init(struct vidtv_access_unit *head) +{ + struct vidtv_access_unit *au; + + au = kzalloc(sizeof(*au), GFP_KERNEL); + if (!au) + return NULL; + + if (head) { + while (head->next) + head = head->next; + + head->next = au; + } + + return au; +} + +static void vidtv_s302m_access_unit_destroy(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *head = e->access_units; + struct vidtv_access_unit *tmp = NULL; + + while (head) { + tmp = head; + head = head->next; + kfree(tmp); + } + + e->access_units = NULL; +} + +static void vidtv_s302m_alloc_au(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *sync_au = NULL; + struct vidtv_access_unit *temp = NULL; + + if (e->sync && e->sync->is_video_encoder) { + sync_au = e->sync->access_units; + + while (sync_au) { + temp = vidtv_s302m_access_unit_init(e->access_units); + if (!e->access_units) + e->access_units = temp; + + sync_au = sync_au->next; + } + + return; + } + + e->access_units = vidtv_s302m_access_unit_init(NULL); +} + +static void +vidtv_s302m_compute_sample_count_from_video(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *sync_au = e->sync->access_units; + struct vidtv_access_unit *au = e->access_units; + u32 sample_duration_usecs; + u32 vau_duration_usecs; + u32 s; + + vau_duration_usecs = USEC_PER_SEC / e->sync->sampling_rate_hz; + sample_duration_usecs = USEC_PER_SEC / e->sampling_rate_hz; + + while (au && sync_au) { + s = DIV_ROUND_UP(vau_duration_usecs, sample_duration_usecs); + au->num_samples = s; + au = au->next; + sync_au = sync_au->next; + } +} + +static void vidtv_s302m_compute_pts_from_video(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *au = e->access_units; + struct vidtv_access_unit *sync_au = e->sync->access_units; + + /* use the same pts from the video access unit*/ + while (au && sync_au) { + au->pts = sync_au->pts; + au = au->next; + sync_au = sync_au->next; + } +} + +static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e) +{ + u16 sample; + int pos; + struct vidtv_s302m_ctx *ctx = e->ctx; + + if (!e->src_buf) { + /* + * Simple tone generator: play the tones at the + * beethoven_fur_elise array. + */ + if (ctx->last_duration <= 0) { + if (e->src_buf_offset >= ARRAY_SIZE(beethoven_fur_elise)) + e->src_buf_offset = 0; + + ctx->last_tone = beethoven_fur_elise[e->src_buf_offset].note; + ctx->last_duration = beethoven_fur_elise[e->src_buf_offset].duration * + S302M_SAMPLING_RATE_HZ / COMPASS / 5; + e->src_buf_offset++; + ctx->note_offset = 0; + } else { + ctx->last_duration--; + } + + /* Handle pause notes */ + if (!ctx->last_tone) + return 0x8000; + + pos = (2 * PI * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ; + ctx->note_offset++; + + return (fixp_sin32(pos % (2 * PI)) >> 16) + 0x8000; + } + + /* bug somewhere */ + if (e->src_buf_offset > e->src_buf_sz) { + pr_err_ratelimited("overflow detected: %d > %d, wrapping.\n", + e->src_buf_offset, + e->src_buf_sz); + + e->src_buf_offset = 0; + } + + if (e->src_buf_offset >= e->src_buf_sz) { + /* let the source know we are out of data */ + if (e->last_sample_cb) + e->last_sample_cb(e->sample_count); + + e->src_buf_offset = 0; + } + + sample = *(u16 *)(e->src_buf + e->src_buf_offset); + + return sample; +} + +static u32 vidtv_s302m_write_frame(struct vidtv_encoder *e, + u16 sample) +{ + struct vidtv_s302m_ctx *ctx = e->ctx; + struct vidtv_s302m_frame_16 f = {}; + u32 nbytes = 0; + + /* from ffmpeg: see s302enc.c */ + + u8 vucf = ctx->frame_index == 0 ? 0x10 : 0; + + f.data[0] = sample & 0xFF; + f.data[1] = (sample & 0xFF00) >> 8; + f.data[2] = ((sample & 0x0F) << 4) | vucf; + f.data[3] = (sample & 0x0FF0) >> 4; + f.data[4] = (sample & 0xF000) >> 12; + + f.data[0] = reverse[f.data[0]]; + f.data[1] = reverse[f.data[1]]; + f.data[2] = reverse[f.data[2]]; + f.data[3] = reverse[f.data[3]]; + f.data[4] = reverse[f.data[4]]; + + nbytes += vidtv_memcpy(e->encoder_buf, + e->encoder_buf_offset, + VIDTV_S302M_BUF_SZ, + &f, + sizeof(f)); + + e->encoder_buf_offset += nbytes; + + ctx->frame_index++; + if (ctx->frame_index >= S302M_BLOCK_SZ) + ctx->frame_index = 0; + + return nbytes; +} + +static u32 vidtv_s302m_write_h(struct vidtv_encoder *e, u32 p_sz) +{ + struct vidtv_smpte_s302m_es h = {}; + u32 nbytes = 0; + + /* 2 channels, ident: 0, 16 bits per sample */ + h.bitfield = cpu_to_be32((p_sz << 16)); + + nbytes += vidtv_memcpy(e->encoder_buf, + e->encoder_buf_offset, + e->encoder_buf_sz, + &h, + sizeof(h)); + + e->encoder_buf_offset += nbytes; + return nbytes; +} + +static void vidtv_s302m_write_frames(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *au = e->access_units; + struct vidtv_s302m_ctx *ctx = e->ctx; + u32 nbytes_per_unit = 0; + u32 nbytes = 0; + u32 au_sz = 0; + u16 sample; + u32 j; + + while (au) { + au_sz = au->num_samples * + sizeof(struct vidtv_s302m_frame_16); + + nbytes_per_unit = vidtv_s302m_write_h(e, au_sz); + + for (j = 0; j < au->num_samples; ++j) { + sample = vidtv_s302m_get_sample(e); + nbytes_per_unit += vidtv_s302m_write_frame(e, sample); + + if (e->src_buf) + e->src_buf_offset += sizeof(u16); + + e->sample_count++; + } + + au->nbytes = nbytes_per_unit; + + if (au_sz + sizeof(struct vidtv_smpte_s302m_es) != nbytes_per_unit) { + pr_warn_ratelimited("write size was %u, expected %zu\n", + nbytes_per_unit, + au_sz + sizeof(struct vidtv_smpte_s302m_es)); + } + + nbytes += nbytes_per_unit; + au->offset = nbytes - nbytes_per_unit; + + nbytes_per_unit = 0; + ctx->au_count++; + + au = au->next; + } +} + +static void *vidtv_s302m_encode(struct vidtv_encoder *e) +{ + struct vidtv_s302m_ctx *ctx = e->ctx; + + /* + * According to SMPTE 302M, an audio access unit is specified as those + * AES3 words that are associated with a corresponding video frame. + * Therefore, there is one audio access unit for every video access unit + * in the corresponding video encoder ('sync'), using the same values + * for PTS as used by the video encoder. + * + * Assuming that it is also possible to send audio without any + * associated video, as in a radio-like service, a single audio access unit + * is created with values for 'num_samples' and 'pts' taken empirically from + * ffmpeg + */ + + vidtv_s302m_access_unit_destroy(e); + vidtv_s302m_alloc_au(e); + + if (e->sync && e->sync->is_video_encoder) { + vidtv_s302m_compute_sample_count_from_video(e); + vidtv_s302m_compute_pts_from_video(e); + } else { + e->access_units->num_samples = FF_S302M_DEFAULT_NUM_FRAMES; + e->access_units->pts = (ctx->au_count * FF_S302M_DEFAULT_PTS_INCREMENT) + + FF_S302M_DEFAULT_PTS_OFFSET; + } + + vidtv_s302m_write_frames(e); + + return e->encoder_buf; +} + +static u32 vidtv_s302m_clear(struct vidtv_encoder *e) +{ + struct vidtv_access_unit *au = e->access_units; + u32 count = 0; + + while (au) { + count++; + au = au->next; + } + + vidtv_s302m_access_unit_destroy(e); + memset(e->encoder_buf, 0, VIDTV_S302M_BUF_SZ); + e->encoder_buf_offset = 0; + + return count; +} + +struct vidtv_encoder +*vidtv_s302m_encoder_init(struct vidtv_s302m_encoder_init_args args) +{ + u32 priv_sz = sizeof(struct vidtv_s302m_ctx); + struct vidtv_s302m_ctx *ctx; + struct vidtv_encoder *e; + + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) + return NULL; + + e->id = S302M; + + if (args.name) + e->name = kstrdup(args.name, GFP_KERNEL); + + e->encoder_buf = vzalloc(VIDTV_S302M_BUF_SZ); + if (!e->encoder_buf) + goto out_kfree_e; + + e->encoder_buf_sz = VIDTV_S302M_BUF_SZ; + e->encoder_buf_offset = 0; + + e->sample_count = 0; + + e->src_buf = (args.src_buf) ? args.src_buf : NULL; + e->src_buf_sz = (args.src_buf) ? args.src_buf_sz : 0; + e->src_buf_offset = 0; + + e->is_video_encoder = false; + + ctx = kzalloc(priv_sz, GFP_KERNEL); + if (!ctx) + goto out_kfree_buf; + + e->ctx = ctx; + ctx->last_duration = 0; + + e->encode = vidtv_s302m_encode; + e->clear = vidtv_s302m_clear; + + e->es_pid = cpu_to_be16(args.es_pid); + e->stream_id = cpu_to_be16(PES_PRIVATE_STREAM_1); + + e->sync = args.sync; + e->sampling_rate_hz = S302M_SAMPLING_RATE_HZ; + + e->last_sample_cb = args.last_sample_cb; + + e->destroy = vidtv_s302m_encoder_destroy; + + if (args.head) { + while (args.head->next) + args.head = args.head->next; + + args.head->next = e; + } + + e->next = NULL; + + return e; + +out_kfree_buf: + vfree(e->encoder_buf); + +out_kfree_e: + kfree(e->name); + kfree(e); + return NULL; +} + +void vidtv_s302m_encoder_destroy(struct vidtv_encoder *e) +{ + if (e->id != S302M) { + pr_err_ratelimited("Encoder type mismatch, skipping.\n"); + return; + } + + vidtv_s302m_access_unit_destroy(e); + kfree(e->name); + vfree(e->encoder_buf); + kfree(e->ctx); + kfree(e); +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.h b/drivers/media/test-drivers/vidtv/vidtv_s302m.h new file mode 100644 index 000000000..9cc94e4a8 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Vidtv serves as a reference DVB driver and helps validate the existing APIs + * in the media subsystem. It can also aid developers working on userspace + * applications. + * + * This file contains the code for an AES3 (also known as AES/EBU) encoder. + * It is based on EBU Tech 3250 and SMPTE 302M technical documents. + * + * This encoder currently supports 16bit AES3 subframes using 16bit signed + * integers. + * + * Note: AU stands for Access Unit, and AAU stands for Audio Access Unit + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_S302M_H +#define VIDTV_S302M_H + +#include <linux/types.h> + +#include "vidtv_encoder.h" + +/* see SMPTE 302M 2007 clause 7.3 */ +#define VIDTV_S302M_BUF_SZ 65024 + +/* see ETSI TS 102 154 v.1.2.1 clause 7.3.5 */ +#define VIDTV_S302M_FORMAT_IDENTIFIER 0x42535344 + +/** + * struct vidtv_s302m_ctx - s302m encoder context. + * @enc: A pointer to the containing encoder structure. + * @frame_index: The current frame in a block + * @au_count: The total number of access units encoded up to now + * @last_duration: Duration of the tone currently being played + * @note_offset: Position at the music tone array + * @last_tone: Tone currently being played + */ +struct vidtv_s302m_ctx { + struct vidtv_encoder *enc; + u32 frame_index; + u32 au_count; + int last_duration; + unsigned int note_offset; + enum musical_notes last_tone; +}; + +/* + * struct vidtv_smpte_s302m_es - s302m MPEG Elementary Stream header. + * + * See SMPTE 302M 2007 table 1. + */ +struct vidtv_smpte_s302m_es { + /* + * + * audio_packet_size:16; + * num_channels:2; + * channel_identification:8; + * bits_per_sample:2; // 0x0 for 16bits + * zero:4; + */ + __be32 bitfield; +} __packed; + +struct vidtv_s302m_frame_16 { + u8 data[5]; +} __packed; + +/** + * struct vidtv_s302m_encoder_init_args - Args for the s302m encoder. + * + * @name: A name to identify this particular instance + * @src_buf: The source buffer, encoder will default to a sine wave if this is NULL. + * @src_buf_sz: The size of the source buffer. + * @es_pid: The MPEG Elementary Stream PID to use. + * @sync: Attempt to synchronize audio with this video encoder, if not NULL. + * @last_sample_cb: A callback called when the encoder runs out of data. + * @head: Add to this chain + */ +struct vidtv_s302m_encoder_init_args { + char *name; + void *src_buf; + u32 src_buf_sz; + u16 es_pid; + struct vidtv_encoder *sync; + void (*last_sample_cb)(u32 sample_no); + + struct vidtv_encoder *head; +}; + +struct vidtv_encoder +*vidtv_s302m_encoder_init(struct vidtv_s302m_encoder_init_args args); + +void vidtv_s302m_encoder_destroy(struct vidtv_encoder *encoder); + +#endif /* VIDTV_S302M_H */ diff --git a/drivers/media/test-drivers/vidtv/vidtv_ts.c b/drivers/media/test-drivers/vidtv/vidtv_ts.c new file mode 100644 index 000000000..ca4bb9c40 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_ts.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__ + +#include <linux/math64.h> +#include <linux/printk.h> +#include <linux/ratelimit.h> +#include <linux/types.h> + +#include "vidtv_common.h" +#include "vidtv_ts.h" + +static u32 vidtv_ts_write_pcr_bits(u8 *to, u32 to_offset, u64 pcr) +{ + /* Exact same from ffmpeg. PCR is a counter driven by a 27Mhz clock */ + u64 div; + u64 rem; + u8 *buf = to + to_offset; + u64 pcr_low; + u64 pcr_high; + + div = div64_u64_rem(pcr, 300, &rem); + + pcr_low = rem; /* pcr_low = pcr % 300 */ + pcr_high = div; /* pcr_high = pcr / 300 */ + + *buf++ = pcr_high >> 25; + *buf++ = pcr_high >> 17; + *buf++ = pcr_high >> 9; + *buf++ = pcr_high >> 1; + *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e; + *buf++ = pcr_low; + + return 6; +} + +void vidtv_ts_inc_cc(u8 *continuity_counter) +{ + ++*continuity_counter; + if (*continuity_counter > TS_CC_MAX_VAL) + *continuity_counter = 0; +} + +u32 vidtv_ts_null_write_into(struct null_packet_write_args args) +{ + u32 nbytes = 0; + struct vidtv_mpeg_ts ts_header = {}; + + ts_header.sync_byte = TS_SYNC_BYTE; + ts_header.bitfield = cpu_to_be16(TS_NULL_PACKET_PID); + ts_header.payload = 1; + ts_header.continuity_counter = *args.continuity_counter; + + /* copy TS header */ + nbytes += vidtv_memcpy(args.dest_buf, + args.dest_offset + nbytes, + args.buf_sz, + &ts_header, + sizeof(ts_header)); + + vidtv_ts_inc_cc(args.continuity_counter); + + /* fill the rest with empty data */ + nbytes += vidtv_memset(args.dest_buf, + args.dest_offset + nbytes, + args.buf_sz, + TS_FILL_BYTE, + TS_PACKET_LEN - nbytes); + + /* we should have written exactly _one_ 188byte packet */ + if (nbytes != TS_PACKET_LEN) + pr_warn_ratelimited("Expected exactly %d bytes, got %d\n", + TS_PACKET_LEN, + nbytes); + + return nbytes; +} + +u32 vidtv_ts_pcr_write_into(struct pcr_write_args args) +{ + u32 nbytes = 0; + struct vidtv_mpeg_ts ts_header = {}; + struct vidtv_mpeg_ts_adaption ts_adap = {}; + + ts_header.sync_byte = TS_SYNC_BYTE; + ts_header.bitfield = cpu_to_be16(args.pid); + ts_header.scrambling = 0; + /* cc is not incremented, but it is needed. see 13818-1 clause 2.4.3.3 */ + ts_header.continuity_counter = *args.continuity_counter; + ts_header.payload = 0; + ts_header.adaptation_field = 1; + + /* 13818-1 clause 2.4.3.5 */ + ts_adap.length = 183; + ts_adap.PCR = 1; + + /* copy TS header */ + nbytes += vidtv_memcpy(args.dest_buf, + args.dest_offset + nbytes, + args.buf_sz, + &ts_header, + sizeof(ts_header)); + + /* write the adap after the TS header */ + nbytes += vidtv_memcpy(args.dest_buf, + args.dest_offset + nbytes, + args.buf_sz, + &ts_adap, + sizeof(ts_adap)); + + /* write the PCR optional */ + nbytes += vidtv_ts_write_pcr_bits(args.dest_buf, + args.dest_offset + nbytes, + args.pcr); + + nbytes += vidtv_memset(args.dest_buf, + args.dest_offset + nbytes, + args.buf_sz, + TS_FILL_BYTE, + TS_PACKET_LEN - nbytes); + + /* we should have written exactly _one_ 188byte packet */ + if (nbytes != TS_PACKET_LEN) + pr_warn_ratelimited("Expected exactly %d bytes, got %d\n", + TS_PACKET_LEN, + nbytes); + + return nbytes; +} diff --git a/drivers/media/test-drivers/vidtv/vidtv_ts.h b/drivers/media/test-drivers/vidtv/vidtv_ts.h new file mode 100644 index 000000000..09b4ffd02 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_ts.h @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_TS_H +#define VIDTV_TS_H + +#include <linux/types.h> + +#define TS_SYNC_BYTE 0x47 +#define TS_PACKET_LEN 188 +#define TS_PAYLOAD_LEN 184 +#define TS_NULL_PACKET_PID 0x1fff +#define TS_CC_MAX_VAL 0x0f /* 4 bits */ +#define TS_LAST_VALID_PID 8191 +#define TS_FILL_BYTE 0xff /* the byte used in packet stuffing */ + +struct vidtv_mpeg_ts_adaption { + u8 length; + struct { + u8 extension:1; + u8 private_data:1; + u8 splicing_point:1; + u8 OPCR:1; + u8 PCR:1; + u8 priority:1; + u8 random_access:1; + u8 discontinued:1; + } __packed; + u8 data[]; +} __packed; + +struct vidtv_mpeg_ts { + u8 sync_byte; + __be16 bitfield; /* tei: 1, payload_start:1 priority: 1, pid:13 */ + struct { + u8 continuity_counter:4; + u8 payload:1; + u8 adaptation_field:1; + u8 scrambling:2; + } __packed; +} __packed; + +/** + * struct pcr_write_args - Arguments for the pcr_write_into function. + * @dest_buf: The buffer to write into. + * @dest_offset: The byte offset into the buffer. + * @pid: The TS PID for the PCR packets. + * @buf_sz: The size of the buffer in bytes. + * @continuity_counter: The TS continuity_counter. + * @pcr: A sample from the system clock. + */ +struct pcr_write_args { + void *dest_buf; + u32 dest_offset; + u16 pid; + u32 buf_sz; + u8 *continuity_counter; + u64 pcr; +}; + +/** + * struct null_packet_write_args - Arguments for the null_write_into function + * @dest_buf: The buffer to write into. + * @dest_offset: The byte offset into the buffer. + * @buf_sz: The size of the buffer in bytes. + * @continuity_counter: The TS continuity_counter. + */ +struct null_packet_write_args { + void *dest_buf; + u32 dest_offset; + u32 buf_sz; + u8 *continuity_counter; +}; + +/* Increment the continuity counter */ +void vidtv_ts_inc_cc(u8 *continuity_counter); + +/** + * vidtv_ts_null_write_into - Write a TS null packet into a buffer. + * @args: the arguments to use when writing. + * + * This function will write a null packet into a buffer. This is usually used to + * pad TS streams. + * + * Return: The number of bytes written into the buffer. + */ +u32 vidtv_ts_null_write_into(struct null_packet_write_args args); + +/** + * vidtv_ts_pcr_write_into - Write a PCR packet into a buffer. + * @args: the arguments to use when writing. + * + * This function will write a PCR packet into a buffer. This is used to + * synchronize the clocks between encoders and decoders. + * + * Return: The number of bytes written into the buffer. + */ +u32 vidtv_ts_pcr_write_into(struct pcr_write_args args); + +#endif //VIDTV_TS_H diff --git a/drivers/media/test-drivers/vidtv/vidtv_tuner.c b/drivers/media/test-drivers/vidtv/vidtv_tuner.c new file mode 100644 index 000000000..aabc97ed7 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_tuner.c @@ -0,0 +1,437 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The Virtual DVB test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * The vidtv tuner should support common TV standards such as + * DVB-T/T2/S/S2, ISDB-T and ATSC when completed. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#include <linux/errno.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/printk.h> +#include <linux/ratelimit.h> +#include <linux/slab.h> +#include <linux/types.h> + +#include <media/dvb_frontend.h> + +#include "vidtv_tuner.h" + +struct vidtv_tuner_cnr_to_qual_s { + /* attempt to use the same values as libdvbv5 */ + u32 modulation; + u32 fec; + u32 cnr_ok; + u32 cnr_good; +}; + +static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_c_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QAM_256, FEC_NONE, 34000, 38000}, + { QAM_64, FEC_NONE, 30000, 34000}, +}; + +static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_s_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QPSK, FEC_1_2, 7000, 10000}, + { QPSK, FEC_2_3, 9000, 12000}, + { QPSK, FEC_3_4, 10000, 13000}, + { QPSK, FEC_5_6, 11000, 14000}, + { QPSK, FEC_7_8, 12000, 15000}, +}; + +static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_s2_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db */ + { QPSK, FEC_1_2, 9000, 12000}, + { QPSK, FEC_2_3, 11000, 14000}, + { QPSK, FEC_3_4, 12000, 15000}, + { QPSK, FEC_5_6, 12000, 15000}, + { QPSK, FEC_8_9, 13000, 16000}, + { QPSK, FEC_9_10, 13500, 16500}, + { PSK_8, FEC_2_3, 14500, 17500}, + { PSK_8, FEC_3_4, 16000, 19000}, + { PSK_8, FEC_5_6, 17500, 20500}, + { PSK_8, FEC_8_9, 19000, 22000}, +}; + +static const struct vidtv_tuner_cnr_to_qual_s vidtv_tuner_t_cnr_2_qual[] = { + /* from libdvbv5 source code, in milli db*/ + { QPSK, FEC_1_2, 4100, 5900}, + { QPSK, FEC_2_3, 6100, 9600}, + { QPSK, FEC_3_4, 7200, 12400}, + { QPSK, FEC_5_6, 8500, 15600}, + { QPSK, FEC_7_8, 9200, 17500}, + { QAM_16, FEC_1_2, 9800, 11800}, + { QAM_16, FEC_2_3, 12100, 15300}, + { QAM_16, FEC_3_4, 13400, 18100}, + { QAM_16, FEC_5_6, 14800, 21300}, + { QAM_16, FEC_7_8, 15700, 23600}, + { QAM_64, FEC_1_2, 14000, 16000}, + { QAM_64, FEC_2_3, 19900, 25400}, + { QAM_64, FEC_3_4, 24900, 27900}, + { QAM_64, FEC_5_6, 21300, 23300}, + { QAM_64, FEC_7_8, 22000, 24000}, +}; + +/** + * struct vidtv_tuner_hardware_state - Simulate the tuner hardware status + * @asleep: whether the tuner is asleep, i.e whether _sleep() or _suspend() was + * called. + * @lock_status: Whether the tuner has managed to lock on the requested + * frequency. + * @if_frequency: The tuner's intermediate frequency. Hardcoded for the purposes + * of simulation. + * @tuned_frequency: The actual tuned frequency. + * @bandwidth: The actual bandwidth. + * + * This structure is meant to simulate the status of the tuner hardware, as if + * we had a physical tuner hardware. + */ +struct vidtv_tuner_hardware_state { + bool asleep; + u32 lock_status; + u32 if_frequency; + u32 tuned_frequency; + u32 bandwidth; +}; + +/** + * struct vidtv_tuner_dev - The tuner struct + * @fe: A pointer to the dvb_frontend structure allocated by vidtv_demod + * @hw_state: A struct to simulate the tuner's hardware state as if we had a + * physical tuner hardware. + * @config: The configuration used to start the tuner module, usually filled + * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the + * tuner module is probed. + */ +struct vidtv_tuner_dev { + struct dvb_frontend *fe; + struct vidtv_tuner_hardware_state hw_state; + struct vidtv_tuner_config config; +}; + +static struct vidtv_tuner_dev* +vidtv_tuner_get_dev(struct dvb_frontend *fe) +{ + return i2c_get_clientdata(fe->tuner_priv); +} + +static int vidtv_tuner_check_frequency_shift(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct vidtv_tuner_config config = tuner_dev->config; + u32 *valid_freqs = NULL; + u32 array_sz = 0; + u32 i; + u32 shift; + + switch (c->delivery_system) { + case SYS_DVBT: + case SYS_DVBT2: + valid_freqs = config.vidtv_valid_dvb_t_freqs; + array_sz = ARRAY_SIZE(config.vidtv_valid_dvb_t_freqs); + break; + case SYS_DVBS: + case SYS_DVBS2: + valid_freqs = config.vidtv_valid_dvb_s_freqs; + array_sz = ARRAY_SIZE(config.vidtv_valid_dvb_s_freqs); + break; + case SYS_DVBC_ANNEX_A: + valid_freqs = config.vidtv_valid_dvb_c_freqs; + array_sz = ARRAY_SIZE(config.vidtv_valid_dvb_c_freqs); + break; + + default: + dev_warn(fe->dvb->device, + "%s: unsupported delivery system: %u\n", + __func__, + c->delivery_system); + + return -EINVAL; + } + + for (i = 0; i < array_sz; i++) { + if (!valid_freqs[i]) + break; + shift = abs(c->frequency - valid_freqs[i]); + + if (!shift) + return 0; + + /* + * This will provide a value from 0 to 100 that would + * indicate how far is the tuned frequency from the + * right one. + */ + if (shift < config.max_frequency_shift_hz) + return shift * 100 / config.max_frequency_shift_hz; + } + + return -EINVAL; +} + +static int +vidtv_tuner_get_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + const struct vidtv_tuner_cnr_to_qual_s *cnr2qual = NULL; + struct device *dev = fe->dvb->device; + u32 array_size = 0; + s32 shift; + u32 i; + + shift = vidtv_tuner_check_frequency_shift(fe); + if (shift < 0) { + tuner_dev->hw_state.lock_status = 0; + *strength = 0; + return 0; + } + + switch (c->delivery_system) { + case SYS_DVBT: + case SYS_DVBT2: + cnr2qual = vidtv_tuner_t_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_tuner_t_cnr_2_qual); + break; + + case SYS_DVBS: + cnr2qual = vidtv_tuner_s_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_tuner_s_cnr_2_qual); + break; + + case SYS_DVBS2: + cnr2qual = vidtv_tuner_s2_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_tuner_s2_cnr_2_qual); + break; + + case SYS_DVBC_ANNEX_A: + cnr2qual = vidtv_tuner_c_cnr_2_qual; + array_size = ARRAY_SIZE(vidtv_tuner_c_cnr_2_qual); + break; + + default: + dev_warn_ratelimited(dev, + "%s: unsupported delivery system: %u\n", + __func__, + c->delivery_system); + return -EINVAL; + } + + for (i = 0; i < array_size; i++) { + if (cnr2qual[i].modulation != c->modulation || + cnr2qual[i].fec != c->fec_inner) + continue; + + if (!shift) { + *strength = cnr2qual[i].cnr_good; + return 0; + } + /* + * Channel tuned at wrong frequency. Simulate that the + * Carrier S/N ratio is not too good. + */ + + *strength = cnr2qual[i].cnr_ok - + (cnr2qual[i].cnr_good - cnr2qual[i].cnr_ok); + return 0; + } + + /* + * do a linear interpolation between 34dB and 10dB if we can't + * match against the table + */ + *strength = 34000 - 24000 * shift / 100; + return 0; +} + +static int vidtv_tuner_init(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + struct vidtv_tuner_config config = tuner_dev->config; + + msleep_interruptible(config.mock_power_up_delay_msec); + + tuner_dev->hw_state.asleep = false; + tuner_dev->hw_state.if_frequency = 5000; + + return 0; +} + +static int vidtv_tuner_sleep(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + tuner_dev->hw_state.asleep = true; + return 0; +} + +static int vidtv_tuner_suspend(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + tuner_dev->hw_state.asleep = true; + return 0; +} + +static int vidtv_tuner_resume(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + tuner_dev->hw_state.asleep = false; + return 0; +} + +static int vidtv_tuner_set_params(struct dvb_frontend *fe) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + struct vidtv_tuner_config config = tuner_dev->config; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + s32 shift; + + u32 min_freq = fe->ops.tuner_ops.info.frequency_min_hz; + u32 max_freq = fe->ops.tuner_ops.info.frequency_max_hz; + u32 min_bw = fe->ops.tuner_ops.info.bandwidth_min; + u32 max_bw = fe->ops.tuner_ops.info.bandwidth_max; + + if (c->frequency < min_freq || c->frequency > max_freq || + c->bandwidth_hz < min_bw || c->bandwidth_hz > max_bw) { + tuner_dev->hw_state.lock_status = 0; + return -EINVAL; + } + + tuner_dev->hw_state.tuned_frequency = c->frequency; + tuner_dev->hw_state.bandwidth = c->bandwidth_hz; + tuner_dev->hw_state.lock_status = TUNER_STATUS_LOCKED; + + msleep_interruptible(config.mock_tune_delay_msec); + + shift = vidtv_tuner_check_frequency_shift(fe); + if (shift < 0) { + tuner_dev->hw_state.lock_status = 0; + return shift; + } + + return 0; +} + +static int vidtv_tuner_set_config(struct dvb_frontend *fe, + void *priv_cfg) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + memcpy(&tuner_dev->config, priv_cfg, sizeof(tuner_dev->config)); + + return 0; +} + +static int vidtv_tuner_get_frequency(struct dvb_frontend *fe, + u32 *frequency) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + *frequency = tuner_dev->hw_state.tuned_frequency; + + return 0; +} + +static int vidtv_tuner_get_bandwidth(struct dvb_frontend *fe, + u32 *bandwidth) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + *bandwidth = tuner_dev->hw_state.bandwidth; + + return 0; +} + +static int vidtv_tuner_get_if_frequency(struct dvb_frontend *fe, + u32 *frequency) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + *frequency = tuner_dev->hw_state.if_frequency; + + return 0; +} + +static int vidtv_tuner_get_status(struct dvb_frontend *fe, u32 *status) +{ + struct vidtv_tuner_dev *tuner_dev = vidtv_tuner_get_dev(fe); + + *status = tuner_dev->hw_state.lock_status; + + return 0; +} + +static const struct dvb_tuner_ops vidtv_tuner_ops = { + .init = vidtv_tuner_init, + .sleep = vidtv_tuner_sleep, + .suspend = vidtv_tuner_suspend, + .resume = vidtv_tuner_resume, + .set_params = vidtv_tuner_set_params, + .set_config = vidtv_tuner_set_config, + .get_bandwidth = vidtv_tuner_get_bandwidth, + .get_frequency = vidtv_tuner_get_frequency, + .get_if_frequency = vidtv_tuner_get_if_frequency, + .get_status = vidtv_tuner_get_status, + .get_rf_strength = vidtv_tuner_get_signal_strength +}; + +static const struct i2c_device_id vidtv_tuner_i2c_id_table[] = { + {"dvb_vidtv_tuner", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, vidtv_tuner_i2c_id_table); + +static int vidtv_tuner_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct vidtv_tuner_config *config = client->dev.platform_data; + struct dvb_frontend *fe = config->fe; + struct vidtv_tuner_dev *tuner_dev = NULL; + + tuner_dev = kzalloc(sizeof(*tuner_dev), GFP_KERNEL); + if (!tuner_dev) + return -ENOMEM; + + tuner_dev->fe = config->fe; + i2c_set_clientdata(client, tuner_dev); + + memcpy(&fe->ops.tuner_ops, + &vidtv_tuner_ops, + sizeof(struct dvb_tuner_ops)); + + memcpy(&tuner_dev->config, config, sizeof(tuner_dev->config)); + fe->tuner_priv = client; + + return 0; +} + +static void vidtv_tuner_i2c_remove(struct i2c_client *client) +{ + struct vidtv_tuner_dev *tuner_dev = i2c_get_clientdata(client); + + kfree(tuner_dev); +} + +static struct i2c_driver vidtv_tuner_i2c_driver = { + .driver = { + .name = "dvb_vidtv_tuner", + .suppress_bind_attrs = true, + }, + .probe = vidtv_tuner_i2c_probe, + .remove = vidtv_tuner_i2c_remove, + .id_table = vidtv_tuner_i2c_id_table, +}; +module_i2c_driver(vidtv_tuner_i2c_driver); + +MODULE_DESCRIPTION("Virtual DVB Tuner"); +MODULE_AUTHOR("Daniel W. S. Almeida"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/test-drivers/vidtv/vidtv_tuner.h b/drivers/media/test-drivers/vidtv/vidtv_tuner.h new file mode 100644 index 000000000..fd55346a5 --- /dev/null +++ b/drivers/media/test-drivers/vidtv/vidtv_tuner.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * The Virtual DTV test driver serves as a reference DVB driver and helps + * validate the existing APIs in the media subsystem. It can also aid + * developers working on userspace applications. + * + * Copyright (C) 2020 Daniel W. S. Almeida + */ + +#ifndef VIDTV_TUNER_H +#define VIDTV_TUNER_H + +#include <linux/types.h> + +#include <media/dvb_frontend.h> + +#define NUM_VALID_TUNER_FREQS 8 + +/** + * struct vidtv_tuner_config - Configuration used to init the tuner. + * @fe: A pointer to the dvb_frontend structure allocated by vidtv_demod. + * @mock_power_up_delay_msec: Simulate a power-up delay. + * @mock_tune_delay_msec: Simulate a tune delay. + * @vidtv_valid_dvb_t_freqs: The valid DVB-T frequencies to simulate. + * @vidtv_valid_dvb_c_freqs: The valid DVB-C frequencies to simulate. + * @vidtv_valid_dvb_s_freqs: The valid DVB-S frequencies to simulate. + * @max_frequency_shift_hz: The maximum frequency shift in HZ allowed when + * tuning in a channel + * + * The configuration used to init the tuner module, usually filled + * by a bridge driver. For vidtv, this is filled by vidtv_bridge before the + * tuner module is probed. + */ +struct vidtv_tuner_config { + struct dvb_frontend *fe; + u32 mock_power_up_delay_msec; + u32 mock_tune_delay_msec; + u32 vidtv_valid_dvb_t_freqs[NUM_VALID_TUNER_FREQS]; + u32 vidtv_valid_dvb_c_freqs[NUM_VALID_TUNER_FREQS]; + u32 vidtv_valid_dvb_s_freqs[NUM_VALID_TUNER_FREQS]; + u8 max_frequency_shift_hz; +}; + +#endif //VIDTV_TUNER_H diff --git a/drivers/media/test-drivers/vim2m.c b/drivers/media/test-drivers/vim2m.c new file mode 100644 index 000000000..7964426bf --- /dev/null +++ b/drivers/media/test-drivers/vim2m.c @@ -0,0 +1,1427 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * A virtual v4l2-mem2mem example device. + * + * This is a virtual device driver for testing mem-to-mem vb2 framework. + * It simulates a device that uses memory buffers for both source and + * destination, processes the data and issues an "irq" (simulated by a delayed + * workqueue). + * The device is capable of multi-instance, multi-buffer-per-transaction + * operation (via the mem2mem framework). + * + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. + * Pawel Osciak, <pawel@osciak.com> + * Marek Szyprowski, <m.szyprowski@samsung.com> + */ +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/fs.h> +#include <linux/sched.h> +#include <linux/slab.h> + +#include <linux/platform_device.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-vmalloc.h> + +MODULE_DESCRIPTION("Virtual device for mem2mem framework testing"); +MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.2"); +MODULE_ALIAS("mem2mem_testdev"); + +static unsigned int debug; +module_param(debug, uint, 0644); +MODULE_PARM_DESC(debug, "debug level"); + +/* Default transaction time in msec */ +static unsigned int default_transtime = 40; /* Max 25 fps */ +module_param(default_transtime, uint, 0644); +MODULE_PARM_DESC(default_transtime, "default transaction time in ms"); + +#define MIN_W 32 +#define MIN_H 32 +#define MAX_W 640 +#define MAX_H 480 + +/* Pixel alignment for non-bayer formats */ +#define WIDTH_ALIGN 2 +#define HEIGHT_ALIGN 1 + +/* Pixel alignment for bayer formats */ +#define BAYER_WIDTH_ALIGN 2 +#define BAYER_HEIGHT_ALIGN 2 + +/* Flags that indicate a format can be used for capture/output */ +#define MEM2MEM_CAPTURE BIT(0) +#define MEM2MEM_OUTPUT BIT(1) + +#define MEM2MEM_NAME "vim2m" + +/* Per queue */ +#define MEM2MEM_DEF_NUM_BUFS VIDEO_MAX_FRAME +/* In bytes, per queue */ +#define MEM2MEM_VID_MEM_LIMIT (16 * 1024 * 1024) + +/* Flags that indicate processing mode */ +#define MEM2MEM_HFLIP BIT(0) +#define MEM2MEM_VFLIP BIT(1) + +#define dprintk(dev, lvl, fmt, arg...) \ + v4l2_dbg(lvl, debug, &(dev)->v4l2_dev, "%s: " fmt, __func__, ## arg) + +static void vim2m_dev_release(struct device *dev) +{} + +static struct platform_device vim2m_pdev = { + .name = MEM2MEM_NAME, + .dev.release = vim2m_dev_release, +}; + +struct vim2m_fmt { + u32 fourcc; + int depth; + /* Types the format can be used for */ + u32 types; +}; + +static struct vim2m_fmt formats[] = { + { + .fourcc = V4L2_PIX_FMT_RGB565, /* rrrrrggg gggbbbbb */ + .depth = 16, + .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + }, { + .fourcc = V4L2_PIX_FMT_RGB565X, /* gggbbbbb rrrrrggg */ + .depth = 16, + .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + }, { + .fourcc = V4L2_PIX_FMT_RGB24, + .depth = 24, + .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + }, { + .fourcc = V4L2_PIX_FMT_BGR24, + .depth = 24, + .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + }, { + .fourcc = V4L2_PIX_FMT_YUYV, + .depth = 16, + .types = MEM2MEM_CAPTURE, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR8, + .depth = 8, + .types = MEM2MEM_CAPTURE, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG8, + .depth = 8, + .types = MEM2MEM_CAPTURE, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG8, + .depth = 8, + .types = MEM2MEM_CAPTURE, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB8, + .depth = 8, + .types = MEM2MEM_CAPTURE, + }, +}; + +#define NUM_FORMATS ARRAY_SIZE(formats) + +/* Per-queue, driver-specific private data */ +struct vim2m_q_data { + unsigned int width; + unsigned int height; + unsigned int sizeimage; + unsigned int sequence; + struct vim2m_fmt *fmt; +}; + +enum { + V4L2_M2M_SRC = 0, + V4L2_M2M_DST = 1, +}; + +#define V4L2_CID_TRANS_TIME_MSEC (V4L2_CID_USER_BASE + 0x1000) +#define V4L2_CID_TRANS_NUM_BUFS (V4L2_CID_USER_BASE + 0x1001) + +static struct vim2m_fmt *find_format(u32 fourcc) +{ + struct vim2m_fmt *fmt; + unsigned int k; + + for (k = 0; k < NUM_FORMATS; k++) { + fmt = &formats[k]; + if (fmt->fourcc == fourcc) + break; + } + + if (k == NUM_FORMATS) + return NULL; + + return &formats[k]; +} + +static void get_alignment(u32 fourcc, + unsigned int *walign, unsigned int *halign) +{ + switch (fourcc) { + case V4L2_PIX_FMT_SBGGR8: + case V4L2_PIX_FMT_SGBRG8: + case V4L2_PIX_FMT_SGRBG8: + case V4L2_PIX_FMT_SRGGB8: + *walign = BAYER_WIDTH_ALIGN; + *halign = BAYER_HEIGHT_ALIGN; + return; + default: + *walign = WIDTH_ALIGN; + *halign = HEIGHT_ALIGN; + return; + } +} + +struct vim2m_dev { + struct v4l2_device v4l2_dev; + struct video_device vfd; +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device mdev; +#endif + + atomic_t num_inst; + struct mutex dev_mutex; + + struct v4l2_m2m_dev *m2m_dev; +}; + +struct vim2m_ctx { + struct v4l2_fh fh; + struct vim2m_dev *dev; + + struct v4l2_ctrl_handler hdl; + + /* Processed buffers in this transaction */ + u8 num_processed; + + /* Transaction length (i.e. how many buffers per transaction) */ + u32 translen; + /* Transaction time (i.e. simulated processing time) in milliseconds */ + u32 transtime; + + struct mutex vb_mutex; + struct delayed_work work_run; + + /* Abort requested by m2m */ + int aborting; + + /* Processing mode */ + int mode; + + enum v4l2_colorspace colorspace; + enum v4l2_ycbcr_encoding ycbcr_enc; + enum v4l2_xfer_func xfer_func; + enum v4l2_quantization quant; + + /* Source and destination queue data */ + struct vim2m_q_data q_data[2]; +}; + +static inline struct vim2m_ctx *file2ctx(struct file *file) +{ + return container_of(file->private_data, struct vim2m_ctx, fh); +} + +static struct vim2m_q_data *get_q_data(struct vim2m_ctx *ctx, + enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + return &ctx->q_data[V4L2_M2M_SRC]; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + return &ctx->q_data[V4L2_M2M_DST]; + default: + return NULL; + } +} + +static const char *type_name(enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + return "Output"; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + return "Capture"; + default: + return "Invalid"; + } +} + +#define CLIP(__color) \ + (u8)(((__color) > 0xff) ? 0xff : (((__color) < 0) ? 0 : (__color))) + +static void copy_line(struct vim2m_q_data *q_data_out, + u8 *src, u8 *dst, bool reverse) +{ + int x, depth = q_data_out->fmt->depth >> 3; + + if (!reverse) { + memcpy(dst, src, q_data_out->width * depth); + } else { + for (x = 0; x < q_data_out->width >> 1; x++) { + memcpy(dst, src, depth); + memcpy(dst + depth, src - depth, depth); + src -= depth << 1; + dst += depth << 1; + } + return; + } +} + +static void copy_two_pixels(struct vim2m_q_data *q_data_in, + struct vim2m_q_data *q_data_out, + u8 *src[2], u8 **dst, int ypos, bool reverse) +{ + struct vim2m_fmt *out = q_data_out->fmt; + struct vim2m_fmt *in = q_data_in->fmt; + u8 _r[2], _g[2], _b[2], *r, *g, *b; + int i; + + /* Step 1: read two consecutive pixels from src pointer */ + + r = _r; + g = _g; + b = _b; + + switch (in->fourcc) { + case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */ + for (i = 0; i < 2; i++) { + u16 pix = le16_to_cpu(*(__le16 *)(src[i])); + + *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07; + *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03; + *b++ = (u8)((pix & 0x1f) << 3) | 0x07; + } + break; + case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */ + for (i = 0; i < 2; i++) { + u16 pix = be16_to_cpu(*(__be16 *)(src[i])); + + *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07; + *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03; + *b++ = (u8)((pix & 0x1f) << 3) | 0x07; + } + break; + default: + case V4L2_PIX_FMT_RGB24: + for (i = 0; i < 2; i++) { + *r++ = src[i][0]; + *g++ = src[i][1]; + *b++ = src[i][2]; + } + break; + case V4L2_PIX_FMT_BGR24: + for (i = 0; i < 2; i++) { + *b++ = src[i][0]; + *g++ = src[i][1]; + *r++ = src[i][2]; + } + break; + } + + /* Step 2: store two consecutive points, reversing them if needed */ + + r = _r; + g = _g; + b = _b; + + switch (out->fourcc) { + case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */ + for (i = 0; i < 2; i++) { + u16 pix; + __le16 *dst_pix = (__le16 *)*dst; + + pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) | + (*b >> 3); + + *dst_pix = cpu_to_le16(pix); + + *dst += 2; + } + return; + case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */ + for (i = 0; i < 2; i++) { + u16 pix; + __be16 *dst_pix = (__be16 *)*dst; + + pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) | + (*b >> 3); + + *dst_pix = cpu_to_be16(pix); + + *dst += 2; + } + return; + case V4L2_PIX_FMT_RGB24: + for (i = 0; i < 2; i++) { + *(*dst)++ = *r++; + *(*dst)++ = *g++; + *(*dst)++ = *b++; + } + return; + case V4L2_PIX_FMT_BGR24: + for (i = 0; i < 2; i++) { + *(*dst)++ = *b++; + *(*dst)++ = *g++; + *(*dst)++ = *r++; + } + return; + case V4L2_PIX_FMT_YUYV: + default: + { + u8 y, y1, u, v; + + y = ((8453 * (*r) + 16594 * (*g) + 3223 * (*b) + + 524288) >> 15); + u = ((-4878 * (*r) - 9578 * (*g) + 14456 * (*b) + + 4210688) >> 15); + v = ((14456 * (*r++) - 12105 * (*g++) - 2351 * (*b++) + + 4210688) >> 15); + y1 = ((8453 * (*r) + 16594 * (*g) + 3223 * (*b) + + 524288) >> 15); + + *(*dst)++ = y; + *(*dst)++ = u; + + *(*dst)++ = y1; + *(*dst)++ = v; + return; + } + case V4L2_PIX_FMT_SBGGR8: + if (!(ypos & 1)) { + *(*dst)++ = *b; + *(*dst)++ = *++g; + } else { + *(*dst)++ = *g; + *(*dst)++ = *++r; + } + return; + case V4L2_PIX_FMT_SGBRG8: + if (!(ypos & 1)) { + *(*dst)++ = *g; + *(*dst)++ = *++b; + } else { + *(*dst)++ = *r; + *(*dst)++ = *++g; + } + return; + case V4L2_PIX_FMT_SGRBG8: + if (!(ypos & 1)) { + *(*dst)++ = *g; + *(*dst)++ = *++r; + } else { + *(*dst)++ = *b; + *(*dst)++ = *++g; + } + return; + case V4L2_PIX_FMT_SRGGB8: + if (!(ypos & 1)) { + *(*dst)++ = *r; + *(*dst)++ = *++g; + } else { + *(*dst)++ = *g; + *(*dst)++ = *++b; + } + return; + } +} + +static int device_process(struct vim2m_ctx *ctx, + struct vb2_v4l2_buffer *in_vb, + struct vb2_v4l2_buffer *out_vb) +{ + struct vim2m_dev *dev = ctx->dev; + struct vim2m_q_data *q_data_in, *q_data_out; + u8 *p_in, *p_line, *p_in_x[2], *p, *p_out; + unsigned int width, height, bytesperline, bytes_per_pixel; + unsigned int x, y, y_in, y_out, x_int, x_fract, x_err, x_offset; + int start, end, step; + + q_data_in = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + if (!q_data_in) + return 0; + bytesperline = (q_data_in->width * q_data_in->fmt->depth) >> 3; + bytes_per_pixel = q_data_in->fmt->depth >> 3; + + q_data_out = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + if (!q_data_out) + return 0; + + /* As we're doing scaling, use the output dimensions here */ + height = q_data_out->height; + width = q_data_out->width; + + p_in = vb2_plane_vaddr(&in_vb->vb2_buf, 0); + p_out = vb2_plane_vaddr(&out_vb->vb2_buf, 0); + if (!p_in || !p_out) { + v4l2_err(&dev->v4l2_dev, + "Acquiring kernel pointers to buffers failed\n"); + return -EFAULT; + } + + out_vb->sequence = q_data_out->sequence++; + in_vb->sequence = q_data_in->sequence++; + v4l2_m2m_buf_copy_metadata(in_vb, out_vb, true); + + if (ctx->mode & MEM2MEM_VFLIP) { + start = height - 1; + end = -1; + step = -1; + } else { + start = 0; + end = height; + step = 1; + } + y_out = 0; + + /* + * When format and resolution are identical, + * we can use a faster copy logic + */ + if (q_data_in->fmt->fourcc == q_data_out->fmt->fourcc && + q_data_in->width == q_data_out->width && + q_data_in->height == q_data_out->height) { + for (y = start; y != end; y += step, y_out++) { + p = p_in + (y * bytesperline); + if (ctx->mode & MEM2MEM_HFLIP) + p += bytesperline - (q_data_in->fmt->depth >> 3); + + copy_line(q_data_out, p, p_out, + ctx->mode & MEM2MEM_HFLIP); + + p_out += bytesperline; + } + return 0; + } + + /* Slower algorithm with format conversion, hflip, vflip and scaler */ + + /* To speed scaler up, use Bresenham for X dimension */ + x_int = q_data_in->width / q_data_out->width; + x_fract = q_data_in->width % q_data_out->width; + + for (y = start; y != end; y += step, y_out++) { + y_in = (y * q_data_in->height) / q_data_out->height; + x_offset = 0; + x_err = 0; + + p_line = p_in + (y_in * bytesperline); + if (ctx->mode & MEM2MEM_HFLIP) + p_line += bytesperline - (q_data_in->fmt->depth >> 3); + p_in_x[0] = p_line; + + for (x = 0; x < width >> 1; x++) { + x_offset += x_int; + x_err += x_fract; + if (x_err > width) { + x_offset++; + x_err -= width; + } + + if (ctx->mode & MEM2MEM_HFLIP) + p_in_x[1] = p_line - x_offset * bytes_per_pixel; + else + p_in_x[1] = p_line + x_offset * bytes_per_pixel; + + copy_two_pixels(q_data_in, q_data_out, + p_in_x, &p_out, y_out, + ctx->mode & MEM2MEM_HFLIP); + + /* Calculate the next p_in_x0 */ + x_offset += x_int; + x_err += x_fract; + if (x_err > width) { + x_offset++; + x_err -= width; + } + + if (ctx->mode & MEM2MEM_HFLIP) + p_in_x[0] = p_line - x_offset * bytes_per_pixel; + else + p_in_x[0] = p_line + x_offset * bytes_per_pixel; + } + } + + return 0; +} + +/* + * mem2mem callbacks + */ + +/* + * job_ready() - check whether an instance is ready to be scheduled to run + */ +static int job_ready(void *priv) +{ + struct vim2m_ctx *ctx = priv; + + if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen + || v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen) { + dprintk(ctx->dev, 1, "Not enough buffers available\n"); + return 0; + } + + return 1; +} + +static void job_abort(void *priv) +{ + struct vim2m_ctx *ctx = priv; + + /* Will cancel the transaction in the next interrupt handler */ + ctx->aborting = 1; +} + +/* device_run() - prepares and starts the device + * + * This simulates all the immediate preparations required before starting + * a device. This will be called by the framework when it decides to schedule + * a particular instance. + */ +static void device_run(void *priv) +{ + struct vim2m_ctx *ctx = priv; + struct vb2_v4l2_buffer *src_buf, *dst_buf; + + src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); + + /* Apply request controls if any */ + v4l2_ctrl_request_setup(src_buf->vb2_buf.req_obj.req, + &ctx->hdl); + + device_process(ctx, src_buf, dst_buf); + + /* Complete request controls if any */ + v4l2_ctrl_request_complete(src_buf->vb2_buf.req_obj.req, + &ctx->hdl); + + /* Run delayed work, which simulates a hardware irq */ + schedule_delayed_work(&ctx->work_run, msecs_to_jiffies(ctx->transtime)); +} + +static void device_work(struct work_struct *w) +{ + struct vim2m_ctx *curr_ctx; + struct vim2m_dev *vim2m_dev; + struct vb2_v4l2_buffer *src_vb, *dst_vb; + + curr_ctx = container_of(w, struct vim2m_ctx, work_run.work); + + vim2m_dev = curr_ctx->dev; + + src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); + dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); + + curr_ctx->num_processed++; + + v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE); + v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE); + + if (curr_ctx->num_processed == curr_ctx->translen + || curr_ctx->aborting) { + dprintk(curr_ctx->dev, 2, "Finishing capture buffer fill\n"); + curr_ctx->num_processed = 0; + v4l2_m2m_job_finish(vim2m_dev->m2m_dev, curr_ctx->fh.m2m_ctx); + } else { + device_run(curr_ctx); + } +} + +/* + * video ioctls + */ +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver)); + strscpy(cap->card, MEM2MEM_NAME, sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "platform:%s", MEM2MEM_NAME); + return 0; +} + +static int enum_fmt(struct v4l2_fmtdesc *f, u32 type) +{ + int i, num; + struct vim2m_fmt *fmt; + + num = 0; + + for (i = 0; i < NUM_FORMATS; ++i) { + if (formats[i].types & type) { + /* index-th format of type type found ? */ + if (num == f->index) + break; + /* + * Correct type but haven't reached our index yet, + * just increment per-type index + */ + ++num; + } + } + + if (i < NUM_FORMATS) { + /* Format found */ + fmt = &formats[i]; + f->pixelformat = fmt->fourcc; + return 0; + } + + /* Format not found */ + return -EINVAL; +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + return enum_fmt(f, MEM2MEM_CAPTURE); +} + +static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + return enum_fmt(f, MEM2MEM_OUTPUT); +} + +static int vidioc_enum_framesizes(struct file *file, void *priv, + struct v4l2_frmsizeenum *fsize) +{ + if (fsize->index != 0) + return -EINVAL; + + if (!find_format(fsize->pixel_format)) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = MIN_W; + fsize->stepwise.min_height = MIN_H; + fsize->stepwise.max_width = MAX_W; + fsize->stepwise.max_height = MAX_H; + + get_alignment(fsize->pixel_format, + &fsize->stepwise.step_width, + &fsize->stepwise.step_height); + return 0; +} + +static int vidioc_g_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f) +{ + struct vb2_queue *vq; + struct vim2m_q_data *q_data; + + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; + + f->fmt.pix.width = q_data->width; + f->fmt.pix.height = q_data->height; + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.pixelformat = q_data->fmt->fourcc; + f->fmt.pix.bytesperline = (q_data->width * q_data->fmt->depth) >> 3; + f->fmt.pix.sizeimage = q_data->sizeimage; + f->fmt.pix.colorspace = ctx->colorspace; + f->fmt.pix.xfer_func = ctx->xfer_func; + f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; + f->fmt.pix.quantization = ctx->quant; + + return 0; +} + +static int vidioc_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(file2ctx(file), f); +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(file2ctx(file), f); +} + +static int vidioc_try_fmt(struct v4l2_format *f, struct vim2m_fmt *fmt) +{ + int walign, halign; + /* + * V4L2 specification specifies the driver corrects the + * format struct if any of the dimensions is unsupported + */ + if (f->fmt.pix.height < MIN_H) + f->fmt.pix.height = MIN_H; + else if (f->fmt.pix.height > MAX_H) + f->fmt.pix.height = MAX_H; + + if (f->fmt.pix.width < MIN_W) + f->fmt.pix.width = MIN_W; + else if (f->fmt.pix.width > MAX_W) + f->fmt.pix.width = MAX_W; + + get_alignment(f->fmt.pix.pixelformat, &walign, &halign); + f->fmt.pix.width &= ~(walign - 1); + f->fmt.pix.height &= ~(halign - 1); + f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; + f->fmt.pix.field = V4L2_FIELD_NONE; + + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vim2m_fmt *fmt; + struct vim2m_ctx *ctx = file2ctx(file); + + fmt = find_format(f->fmt.pix.pixelformat); + if (!fmt) { + f->fmt.pix.pixelformat = formats[0].fourcc; + fmt = find_format(f->fmt.pix.pixelformat); + } + if (!(fmt->types & MEM2MEM_CAPTURE)) { + v4l2_err(&ctx->dev->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + f->fmt.pix.colorspace = ctx->colorspace; + f->fmt.pix.xfer_func = ctx->xfer_func; + f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; + f->fmt.pix.quantization = ctx->quant; + + return vidioc_try_fmt(f, fmt); +} + +static int vidioc_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vim2m_fmt *fmt; + struct vim2m_ctx *ctx = file2ctx(file); + + fmt = find_format(f->fmt.pix.pixelformat); + if (!fmt) { + f->fmt.pix.pixelformat = formats[0].fourcc; + fmt = find_format(f->fmt.pix.pixelformat); + } + if (!(fmt->types & MEM2MEM_OUTPUT)) { + v4l2_err(&ctx->dev->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + if (!f->fmt.pix.colorspace) + f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; + + return vidioc_try_fmt(f, fmt); +} + +static int vidioc_s_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f) +{ + struct vim2m_q_data *q_data; + struct vb2_queue *vq; + + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; + + if (vb2_is_busy(vq)) { + v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__); + return -EBUSY; + } + + q_data->fmt = find_format(f->fmt.pix.pixelformat); + q_data->width = f->fmt.pix.width; + q_data->height = f->fmt.pix.height; + q_data->sizeimage = q_data->width * q_data->height + * q_data->fmt->depth >> 3; + + dprintk(ctx->dev, 1, + "Format for type %s: %dx%d (%d bpp), fmt: %c%c%c%c\n", + type_name(f->type), q_data->width, q_data->height, + q_data->fmt->depth, + (q_data->fmt->fourcc & 0xff), + (q_data->fmt->fourcc >> 8) & 0xff, + (q_data->fmt->fourcc >> 16) & 0xff, + (q_data->fmt->fourcc >> 24) & 0xff); + + return 0; +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + + ret = vidioc_try_fmt_vid_cap(file, priv, f); + if (ret) + return ret; + + return vidioc_s_fmt(file2ctx(file), f); +} + +static int vidioc_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vim2m_ctx *ctx = file2ctx(file); + int ret; + + ret = vidioc_try_fmt_vid_out(file, priv, f); + if (ret) + return ret; + + ret = vidioc_s_fmt(file2ctx(file), f); + if (!ret) { + ctx->colorspace = f->fmt.pix.colorspace; + ctx->xfer_func = f->fmt.pix.xfer_func; + ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc; + ctx->quant = f->fmt.pix.quantization; + } + return ret; +} + +static int vim2m_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vim2m_ctx *ctx = + container_of(ctrl->handler, struct vim2m_ctx, hdl); + + switch (ctrl->id) { + case V4L2_CID_HFLIP: + if (ctrl->val) + ctx->mode |= MEM2MEM_HFLIP; + else + ctx->mode &= ~MEM2MEM_HFLIP; + break; + + case V4L2_CID_VFLIP: + if (ctrl->val) + ctx->mode |= MEM2MEM_VFLIP; + else + ctx->mode &= ~MEM2MEM_VFLIP; + break; + + case V4L2_CID_TRANS_TIME_MSEC: + ctx->transtime = ctrl->val; + if (ctx->transtime < 1) + ctx->transtime = 1; + break; + + case V4L2_CID_TRANS_NUM_BUFS: + ctx->translen = ctrl->val; + break; + + default: + v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n"); + return -EINVAL; + } + + return 0; +} + +static const struct v4l2_ctrl_ops vim2m_ctrl_ops = { + .s_ctrl = vim2m_s_ctrl, +}; + +static const struct v4l2_ioctl_ops vim2m_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_enum_framesizes = vidioc_enum_framesizes, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + + .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, + .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, + .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, + .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, + + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, + .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, + .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, + .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, + + .vidioc_streamon = v4l2_m2m_ioctl_streamon, + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, + + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* + * Queue operations + */ + +static int vim2m_queue_setup(struct vb2_queue *vq, + unsigned int *nbuffers, + unsigned int *nplanes, + unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vim2m_ctx *ctx = vb2_get_drv_priv(vq); + struct vim2m_q_data *q_data; + unsigned int size, count = *nbuffers; + + q_data = get_q_data(ctx, vq->type); + if (!q_data) + return -EINVAL; + + size = q_data->width * q_data->height * q_data->fmt->depth >> 3; + + while (size * count > MEM2MEM_VID_MEM_LIMIT) + (count)--; + *nbuffers = count; + + if (*nplanes) + return sizes[0] < size ? -EINVAL : 0; + + *nplanes = 1; + sizes[0] = size; + + dprintk(ctx->dev, 1, "%s: get %d buffer(s) of size %d each.\n", + type_name(vq->type), count, size); + + return 0; +} + +static int vim2m_buf_out_validate(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + if (vbuf->field == V4L2_FIELD_ANY) + vbuf->field = V4L2_FIELD_NONE; + if (vbuf->field != V4L2_FIELD_NONE) { + dprintk(ctx->dev, 1, "%s field isn't supported\n", __func__); + return -EINVAL; + } + + return 0; +} + +static int vim2m_buf_prepare(struct vb2_buffer *vb) +{ + struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct vim2m_q_data *q_data; + + dprintk(ctx->dev, 2, "type: %s\n", type_name(vb->vb2_queue->type)); + + q_data = get_q_data(ctx, vb->vb2_queue->type); + if (!q_data) + return -EINVAL; + if (vb2_plane_size(vb, 0) < q_data->sizeimage) { + dprintk(ctx->dev, 1, + "%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), + (long)q_data->sizeimage); + return -EINVAL; + } + + vb2_set_plane_payload(vb, 0, q_data->sizeimage); + + return 0; +} + +static void vim2m_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); +} + +static int vim2m_start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct vim2m_ctx *ctx = vb2_get_drv_priv(q); + struct vim2m_q_data *q_data = get_q_data(ctx, q->type); + + if (!q_data) + return -EINVAL; + + if (V4L2_TYPE_IS_OUTPUT(q->type)) + ctx->aborting = 0; + + q_data->sequence = 0; + return 0; +} + +static void vim2m_stop_streaming(struct vb2_queue *q) +{ + struct vim2m_ctx *ctx = vb2_get_drv_priv(q); + struct vb2_v4l2_buffer *vbuf; + + cancel_delayed_work_sync(&ctx->work_run); + + for (;;) { + if (V4L2_TYPE_IS_OUTPUT(q->type)) + vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); + else + vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); + if (!vbuf) + return; + v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, + &ctx->hdl); + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); + } +} + +static void vim2m_buf_request_complete(struct vb2_buffer *vb) +{ + struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl); +} + +static const struct vb2_ops vim2m_qops = { + .queue_setup = vim2m_queue_setup, + .buf_out_validate = vim2m_buf_out_validate, + .buf_prepare = vim2m_buf_prepare, + .buf_queue = vim2m_buf_queue, + .start_streaming = vim2m_start_streaming, + .stop_streaming = vim2m_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, + .buf_request_complete = vim2m_buf_request_complete, +}; + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct vim2m_ctx *ctx = priv; + int ret; + + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + src_vq->drv_priv = ctx; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + src_vq->ops = &vim2m_qops; + src_vq->mem_ops = &vb2_vmalloc_memops; + src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + src_vq->lock = &ctx->vb_mutex; + src_vq->supports_requests = true; + + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + dst_vq->drv_priv = ctx; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + dst_vq->ops = &vim2m_qops; + dst_vq->mem_ops = &vb2_vmalloc_memops; + dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + dst_vq->lock = &ctx->vb_mutex; + + return vb2_queue_init(dst_vq); +} + +static struct v4l2_ctrl_config vim2m_ctrl_trans_time_msec = { + .ops = &vim2m_ctrl_ops, + .id = V4L2_CID_TRANS_TIME_MSEC, + .name = "Transaction Time (msec)", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 1, + .max = 10001, + .step = 1, +}; + +static const struct v4l2_ctrl_config vim2m_ctrl_trans_num_bufs = { + .ops = &vim2m_ctrl_ops, + .id = V4L2_CID_TRANS_NUM_BUFS, + .name = "Buffers Per Transaction", + .type = V4L2_CTRL_TYPE_INTEGER, + .def = 1, + .min = 1, + .max = MEM2MEM_DEF_NUM_BUFS, + .step = 1, +}; + +/* + * File operations + */ +static int vim2m_open(struct file *file) +{ + struct vim2m_dev *dev = video_drvdata(file); + struct vim2m_ctx *ctx = NULL; + struct v4l2_ctrl_handler *hdl; + int rc = 0; + + if (mutex_lock_interruptible(&dev->dev_mutex)) + return -ERESTARTSYS; + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) { + rc = -ENOMEM; + goto open_unlock; + } + + v4l2_fh_init(&ctx->fh, video_devdata(file)); + file->private_data = &ctx->fh; + ctx->dev = dev; + hdl = &ctx->hdl; + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); + + vim2m_ctrl_trans_time_msec.def = default_transtime; + v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_time_msec, NULL); + v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_num_bufs, NULL); + if (hdl->error) { + rc = hdl->error; + v4l2_ctrl_handler_free(hdl); + kfree(ctx); + goto open_unlock; + } + ctx->fh.ctrl_handler = hdl; + v4l2_ctrl_handler_setup(hdl); + + ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0]; + ctx->q_data[V4L2_M2M_SRC].width = 640; + ctx->q_data[V4L2_M2M_SRC].height = 480; + ctx->q_data[V4L2_M2M_SRC].sizeimage = + ctx->q_data[V4L2_M2M_SRC].width * + ctx->q_data[V4L2_M2M_SRC].height * + (ctx->q_data[V4L2_M2M_SRC].fmt->depth >> 3); + ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; + ctx->colorspace = V4L2_COLORSPACE_REC709; + + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); + + mutex_init(&ctx->vb_mutex); + INIT_DELAYED_WORK(&ctx->work_run, device_work); + + if (IS_ERR(ctx->fh.m2m_ctx)) { + rc = PTR_ERR(ctx->fh.m2m_ctx); + + v4l2_ctrl_handler_free(hdl); + v4l2_fh_exit(&ctx->fh); + kfree(ctx); + goto open_unlock; + } + + v4l2_fh_add(&ctx->fh); + atomic_inc(&dev->num_inst); + + dprintk(dev, 1, "Created instance: %p, m2m_ctx: %p\n", + ctx, ctx->fh.m2m_ctx); + +open_unlock: + mutex_unlock(&dev->dev_mutex); + return rc; +} + +static int vim2m_release(struct file *file) +{ + struct vim2m_dev *dev = video_drvdata(file); + struct vim2m_ctx *ctx = file2ctx(file); + + dprintk(dev, 1, "Releasing instance %p\n", ctx); + + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + v4l2_ctrl_handler_free(&ctx->hdl); + mutex_lock(&dev->dev_mutex); + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); + mutex_unlock(&dev->dev_mutex); + kfree(ctx); + + atomic_dec(&dev->num_inst); + + return 0; +} + +static void vim2m_device_release(struct video_device *vdev) +{ + struct vim2m_dev *dev = container_of(vdev, struct vim2m_dev, vfd); + + v4l2_device_unregister(&dev->v4l2_dev); + v4l2_m2m_release(dev->m2m_dev); +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_cleanup(&dev->mdev); +#endif + kfree(dev); +} + +static const struct v4l2_file_operations vim2m_fops = { + .owner = THIS_MODULE, + .open = vim2m_open, + .release = vim2m_release, + .poll = v4l2_m2m_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = v4l2_m2m_fop_mmap, +}; + +static const struct video_device vim2m_videodev = { + .name = MEM2MEM_NAME, + .vfl_dir = VFL_DIR_M2M, + .fops = &vim2m_fops, + .ioctl_ops = &vim2m_ioctl_ops, + .minor = -1, + .release = vim2m_device_release, + .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING, +}; + +static const struct v4l2_m2m_ops m2m_ops = { + .device_run = device_run, + .job_ready = job_ready, + .job_abort = job_abort, +}; + +static const struct media_device_ops m2m_media_ops = { + .req_validate = vb2_request_validate, + .req_queue = v4l2_m2m_request_queue, +}; + +static int vim2m_probe(struct platform_device *pdev) +{ + struct vim2m_dev *dev; + struct video_device *vfd; + int ret; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); + if (ret) + goto error_free; + + atomic_set(&dev->num_inst, 0); + mutex_init(&dev->dev_mutex); + + dev->vfd = vim2m_videodev; + vfd = &dev->vfd; + vfd->lock = &dev->dev_mutex; + vfd->v4l2_dev = &dev->v4l2_dev; + + video_set_drvdata(vfd, dev); + v4l2_info(&dev->v4l2_dev, + "Device registered as /dev/video%d\n", vfd->num); + + platform_set_drvdata(pdev, dev); + + dev->m2m_dev = v4l2_m2m_init(&m2m_ops); + if (IS_ERR(dev->m2m_dev)) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); + ret = PTR_ERR(dev->m2m_dev); + dev->m2m_dev = NULL; + goto error_dev; + } + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->mdev.dev = &pdev->dev; + strscpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model)); + strscpy(dev->mdev.bus_info, "platform:vim2m", + sizeof(dev->mdev.bus_info)); + media_device_init(&dev->mdev); + dev->mdev.ops = &m2m_media_ops; + dev->v4l2_dev.mdev = &dev->mdev; +#endif + + ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); + goto error_m2m; + } + +#ifdef CONFIG_MEDIA_CONTROLLER + ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd, + MEDIA_ENT_F_PROC_VIDEO_SCALER); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n"); + goto error_v4l2; + } + + ret = media_device_register(&dev->mdev); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); + goto error_m2m_mc; + } +#endif + return 0; + +#ifdef CONFIG_MEDIA_CONTROLLER +error_m2m_mc: + v4l2_m2m_unregister_media_controller(dev->m2m_dev); +#endif +error_v4l2: + video_unregister_device(&dev->vfd); + /* vim2m_device_release called by video_unregister_device to release various objects */ + return ret; +error_m2m: + v4l2_m2m_release(dev->m2m_dev); +error_dev: + v4l2_device_unregister(&dev->v4l2_dev); +error_free: + kfree(dev); + + return ret; +} + +static int vim2m_remove(struct platform_device *pdev) +{ + struct vim2m_dev *dev = platform_get_drvdata(pdev); + + v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME); + +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_unregister(&dev->mdev); + v4l2_m2m_unregister_media_controller(dev->m2m_dev); +#endif + video_unregister_device(&dev->vfd); + + return 0; +} + +static struct platform_driver vim2m_pdrv = { + .probe = vim2m_probe, + .remove = vim2m_remove, + .driver = { + .name = MEM2MEM_NAME, + }, +}; + +static void __exit vim2m_exit(void) +{ + platform_driver_unregister(&vim2m_pdrv); + platform_device_unregister(&vim2m_pdev); +} + +static int __init vim2m_init(void) +{ + int ret; + + ret = platform_device_register(&vim2m_pdev); + if (ret) + return ret; + + ret = platform_driver_register(&vim2m_pdrv); + if (ret) + platform_device_unregister(&vim2m_pdev); + + return ret; +} + +module_init(vim2m_init); +module_exit(vim2m_exit); diff --git a/drivers/media/test-drivers/vimc/Kconfig b/drivers/media/test-drivers/vimc/Kconfig new file mode 100644 index 000000000..0d5169819 --- /dev/null +++ b/drivers/media/test-drivers/vimc/Kconfig @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIDEO_VIMC + tristate "Virtual Media Controller Driver (VIMC)" + depends on VIDEO_DEV + select FONT_SUPPORT + select FONT_8x16 + select MEDIA_CONTROLLER + select VIDEO_V4L2_SUBDEV_API + select VIDEOBUF2_VMALLOC + select VIDEOBUF2_DMA_CONTIG + select VIDEO_V4L2_TPG + help + Skeleton driver for Virtual Media Controller + + This driver can be compared to the vivid driver for emulating + a media node that exposes a complex media topology. The topology + is hard coded for now but is meant to be highly configurable in + the future. + + When in doubt, say N. diff --git a/drivers/media/test-drivers/vimc/Makefile b/drivers/media/test-drivers/vimc/Makefile new file mode 100644 index 000000000..9b9631562 --- /dev/null +++ b/drivers/media/test-drivers/vimc/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +vimc-y := vimc-core.o vimc-common.o vimc-streamer.o vimc-capture.o \ + vimc-debayer.o vimc-scaler.o vimc-sensor.o vimc-lens.o + +obj-$(CONFIG_VIDEO_VIMC) += vimc.o + diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c new file mode 100644 index 000000000..aa944270e --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-capture.c @@ -0,0 +1,500 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-capture.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <media/v4l2-ioctl.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> +#include <media/videobuf2-vmalloc.h> + +#include "vimc-common.h" +#include "vimc-streamer.h" + +struct vimc_capture_device { + struct vimc_ent_device ved; + struct video_device vdev; + struct v4l2_pix_format format; + struct vb2_queue queue; + struct list_head buf_list; + /* + * NOTE: in a real driver, a spin lock must be used to access the + * queue because the frames are generated from a hardware interruption + * and the isr is not allowed to sleep. + * Even if it is not necessary a spinlock in the vimc driver, we + * use it here as a code reference + */ + spinlock_t qlock; + struct mutex lock; + u32 sequence; + struct vimc_stream stream; + struct media_pad pad; +}; + +static const struct v4l2_pix_format fmt_default = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_RGB24, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, +}; + +struct vimc_capture_buffer { + /* + * struct vb2_v4l2_buffer must be the first element + * the videobuf2 framework will allocate this struct based on + * buf_struct_size and use the first sizeof(struct vb2_buffer) bytes of + * memory as a vb2_buffer + */ + struct vb2_v4l2_buffer vb2; + struct list_head list; +}; + +static int vimc_capture_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, VIMC_PDEV_NAME, sizeof(cap->driver)); + strscpy(cap->card, KBUILD_MODNAME, sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "platform:%s", VIMC_PDEV_NAME); + + return 0; +} + +static void vimc_capture_get_format(struct vimc_ent_device *ved, + struct v4l2_pix_format *fmt) +{ + struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device, + ved); + + *fmt = vcapture->format; +} + +static int vimc_capture_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vimc_capture_device *vcapture = video_drvdata(file); + + f->fmt.pix = vcapture->format; + + return 0; +} + +static int vimc_capture_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct v4l2_pix_format *format = &f->fmt.pix; + const struct vimc_pix_map *vpix; + + format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH, + VIMC_FRAME_MAX_WIDTH) & ~1; + format->height = clamp_t(u32, format->height, VIMC_FRAME_MIN_HEIGHT, + VIMC_FRAME_MAX_HEIGHT) & ~1; + + /* Don't accept a pixelformat that is not on the table */ + vpix = vimc_pix_map_by_pixelformat(format->pixelformat); + if (!vpix) { + format->pixelformat = fmt_default.pixelformat; + vpix = vimc_pix_map_by_pixelformat(format->pixelformat); + } + /* TODO: Add support for custom bytesperline values */ + format->bytesperline = format->width * vpix->bpp; + format->sizeimage = format->bytesperline * format->height; + + if (format->field == V4L2_FIELD_ANY) + format->field = fmt_default.field; + + vimc_colorimetry_clamp(format); + + if (format->colorspace == V4L2_COLORSPACE_DEFAULT) + format->colorspace = fmt_default.colorspace; + + return 0; +} + +static int vimc_capture_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vimc_capture_device *vcapture = video_drvdata(file); + int ret; + + /* Do not change the format while stream is on */ + if (vb2_is_busy(&vcapture->queue)) + return -EBUSY; + + ret = vimc_capture_try_fmt_vid_cap(file, priv, f); + if (ret) + return ret; + + dev_dbg(vcapture->ved.dev, "%s: format update: " + "old:%dx%d (0x%x, %d, %d, %d, %d) " + "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcapture->vdev.name, + /* old */ + vcapture->format.width, vcapture->format.height, + vcapture->format.pixelformat, vcapture->format.colorspace, + vcapture->format.quantization, vcapture->format.xfer_func, + vcapture->format.ycbcr_enc, + /* new */ + f->fmt.pix.width, f->fmt.pix.height, + f->fmt.pix.pixelformat, f->fmt.pix.colorspace, + f->fmt.pix.quantization, f->fmt.pix.xfer_func, + f->fmt.pix.ycbcr_enc); + + vcapture->format = f->fmt.pix; + + return 0; +} + +static int vimc_capture_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + const struct vimc_pix_map *vpix; + + if (f->mbus_code) { + if (f->index > 0) + return -EINVAL; + + vpix = vimc_pix_map_by_code(f->mbus_code); + } else { + vpix = vimc_pix_map_by_index(f->index); + } + + if (!vpix) + return -EINVAL; + + f->pixelformat = vpix->pixelformat; + + return 0; +} + +static int vimc_capture_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + const struct vimc_pix_map *vpix; + + if (fsize->index) + return -EINVAL; + + /* Only accept code in the pix map table */ + vpix = vimc_pix_map_by_code(fsize->pixel_format); + if (!vpix) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS; + fsize->stepwise.min_width = VIMC_FRAME_MIN_WIDTH; + fsize->stepwise.max_width = VIMC_FRAME_MAX_WIDTH; + fsize->stepwise.min_height = VIMC_FRAME_MIN_HEIGHT; + fsize->stepwise.max_height = VIMC_FRAME_MAX_HEIGHT; + fsize->stepwise.step_width = 1; + fsize->stepwise.step_height = 1; + + return 0; +} + +static const struct v4l2_file_operations vimc_capture_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vb2_fop_mmap, +}; + +static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = { + .vidioc_querycap = vimc_capture_querycap, + + .vidioc_g_fmt_vid_cap = vimc_capture_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vimc_capture_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vimc_capture_try_fmt_vid_cap, + .vidioc_enum_fmt_vid_cap = vimc_capture_enum_fmt_vid_cap, + .vidioc_enum_framesizes = vimc_capture_enum_framesizes, + + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, +}; + +static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture, + enum vb2_buffer_state state) +{ + struct vimc_capture_buffer *vbuf, *node; + + spin_lock(&vcapture->qlock); + + list_for_each_entry_safe(vbuf, node, &vcapture->buf_list, list) { + list_del(&vbuf->list); + vb2_buffer_done(&vbuf->vb2.vb2_buf, state); + } + + spin_unlock(&vcapture->qlock); +} + +static int vimc_capture_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); + int ret; + + vcapture->sequence = 0; + + /* Start the media pipeline */ + ret = video_device_pipeline_start(&vcapture->vdev, &vcapture->stream.pipe); + if (ret) { + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED); + return ret; + } + + ret = vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 1); + if (ret) { + video_device_pipeline_stop(&vcapture->vdev); + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED); + return ret; + } + + return 0; +} + +/* + * Stop the stream engine. Any remaining buffers in the stream queue are + * dequeued and passed on to the vb2 framework marked as STATE_ERROR. + */ +static void vimc_capture_stop_streaming(struct vb2_queue *vq) +{ + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); + + vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 0); + + /* Stop the media pipeline */ + video_device_pipeline_stop(&vcapture->vdev); + + /* Release all active buffers */ + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_ERROR); +} + +static void vimc_capture_buf_queue(struct vb2_buffer *vb2_buf) +{ + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb2_buf->vb2_queue); + struct vimc_capture_buffer *buf = container_of(vb2_buf, + struct vimc_capture_buffer, + vb2.vb2_buf); + + spin_lock(&vcapture->qlock); + list_add_tail(&buf->list, &vcapture->buf_list); + spin_unlock(&vcapture->qlock); +} + +static int vimc_capture_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); + + if (*nplanes) + return sizes[0] < vcapture->format.sizeimage ? -EINVAL : 0; + /* We don't support multiplanes for now */ + *nplanes = 1; + sizes[0] = vcapture->format.sizeimage; + + return 0; +} + +static int vimc_capture_buffer_prepare(struct vb2_buffer *vb) +{ + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size = vcapture->format.sizeimage; + + if (vb2_plane_size(vb, 0) < size) { + dev_err(vcapture->ved.dev, "%s: buffer too small (%lu < %lu)\n", + vcapture->vdev.name, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + return 0; +} + +static const struct vb2_ops vimc_capture_qops = { + .start_streaming = vimc_capture_start_streaming, + .stop_streaming = vimc_capture_stop_streaming, + .buf_queue = vimc_capture_buf_queue, + .queue_setup = vimc_capture_queue_setup, + .buf_prepare = vimc_capture_buffer_prepare, + /* + * Since q->lock is set we can use the standard + * vb2_ops_wait_prepare/finish helper functions. + */ + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static const struct media_entity_operations vimc_capture_mops = { + .link_validate = vimc_vdev_link_validate, +}; + +static void vimc_capture_release(struct vimc_ent_device *ved) +{ + struct vimc_capture_device *vcapture = + container_of(ved, struct vimc_capture_device, ved); + + media_entity_cleanup(vcapture->ved.ent); + kfree(vcapture); +} + +static void vimc_capture_unregister(struct vimc_ent_device *ved) +{ + struct vimc_capture_device *vcapture = + container_of(ved, struct vimc_capture_device, ved); + + vb2_video_unregister_device(&vcapture->vdev); +} + +static void *vimc_capture_process_frame(struct vimc_ent_device *ved, + const void *frame) +{ + struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device, + ved); + struct vimc_capture_buffer *vimc_buf; + void *vbuf; + + spin_lock(&vcapture->qlock); + + /* Get the first entry of the list */ + vimc_buf = list_first_entry_or_null(&vcapture->buf_list, + typeof(*vimc_buf), list); + if (!vimc_buf) { + spin_unlock(&vcapture->qlock); + return ERR_PTR(-EAGAIN); + } + + /* Remove this entry from the list */ + list_del(&vimc_buf->list); + + spin_unlock(&vcapture->qlock); + + /* Fill the buffer */ + vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns(); + vimc_buf->vb2.sequence = vcapture->sequence++; + vimc_buf->vb2.field = vcapture->format.field; + + vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0); + + memcpy(vbuf, frame, vcapture->format.sizeimage); + + /* Set it as ready */ + vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0, + vcapture->format.sizeimage); + vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE); + return NULL; +} + +static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc, + const char *vcfg_name) +{ + struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; + const struct vimc_pix_map *vpix; + struct vimc_capture_device *vcapture; + struct video_device *vdev; + struct vb2_queue *q; + int ret; + + /* Allocate the vimc_capture_device struct */ + vcapture = kzalloc(sizeof(*vcapture), GFP_KERNEL); + if (!vcapture) + return ERR_PTR(-ENOMEM); + + /* Initialize the media entity */ + vcapture->vdev.entity.name = vcfg_name; + vcapture->vdev.entity.function = MEDIA_ENT_F_IO_V4L; + vcapture->pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vcapture->vdev.entity, + 1, &vcapture->pad); + if (ret) + goto err_free_vcapture; + + /* Initialize the lock */ + mutex_init(&vcapture->lock); + + /* Initialize the vb2 queue */ + q = &vcapture->queue; + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_DMABUF; + if (vimc_allocator == VIMC_ALLOCATOR_VMALLOC) + q->io_modes |= VB2_USERPTR; + q->drv_priv = vcapture; + q->buf_struct_size = sizeof(struct vimc_capture_buffer); + q->ops = &vimc_capture_qops; + q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG + ? &vb2_dma_contig_memops : &vb2_vmalloc_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->min_buffers_needed = 2; + q->lock = &vcapture->lock; + q->dev = v4l2_dev->dev; + + ret = vb2_queue_init(q); + if (ret) { + dev_err(vimc->mdev.dev, "%s: vb2 queue init failed (err=%d)\n", + vcfg_name, ret); + goto err_clean_m_ent; + } + + /* Initialize buffer list and its lock */ + INIT_LIST_HEAD(&vcapture->buf_list); + spin_lock_init(&vcapture->qlock); + + /* Set default frame format */ + vcapture->format = fmt_default; + vpix = vimc_pix_map_by_pixelformat(vcapture->format.pixelformat); + vcapture->format.bytesperline = vcapture->format.width * vpix->bpp; + vcapture->format.sizeimage = vcapture->format.bytesperline * + vcapture->format.height; + + /* Fill the vimc_ent_device struct */ + vcapture->ved.ent = &vcapture->vdev.entity; + vcapture->ved.process_frame = vimc_capture_process_frame; + vcapture->ved.vdev_get_format = vimc_capture_get_format; + vcapture->ved.dev = vimc->mdev.dev; + + /* Initialize the video_device struct */ + vdev = &vcapture->vdev; + vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING + | V4L2_CAP_IO_MC; + vdev->entity.ops = &vimc_capture_mops; + vdev->release = video_device_release_empty; + vdev->fops = &vimc_capture_fops; + vdev->ioctl_ops = &vimc_capture_ioctl_ops; + vdev->lock = &vcapture->lock; + vdev->queue = q; + vdev->v4l2_dev = v4l2_dev; + vdev->vfl_dir = VFL_DIR_RX; + strscpy(vdev->name, vcfg_name, sizeof(vdev->name)); + video_set_drvdata(vdev, &vcapture->ved); + + /* Register the video_device with the v4l2 and the media framework */ + ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); + if (ret) { + dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n", + vcapture->vdev.name, ret); + goto err_clean_m_ent; + } + + return &vcapture->ved; + +err_clean_m_ent: + media_entity_cleanup(&vcapture->vdev.entity); +err_free_vcapture: + kfree(vcapture); + + return ERR_PTR(ret); +} + +struct vimc_ent_type vimc_capture_type = { + .add = vimc_capture_add, + .unregister = vimc_capture_unregister, + .release = vimc_capture_release +}; diff --git a/drivers/media/test-drivers/vimc/vimc-common.c b/drivers/media/test-drivers/vimc/vimc-common.c new file mode 100644 index 000000000..7b27153c0 --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-common.c @@ -0,0 +1,400 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-common.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <linux/init.h> +#include <linux/module.h> + +#include "vimc-common.h" + +/* + * NOTE: non-bayer formats need to come first (necessary for enum_mbus_code + * in the scaler) + */ +static const struct vimc_pix_map vimc_pix_map_list[] = { + /* TODO: add all missing formats */ + + /* RGB formats */ + { + .code = { + MEDIA_BUS_FMT_BGR888_1X24, + MEDIA_BUS_FMT_BGR888_3X8 + }, + .pixelformat = V4L2_PIX_FMT_BGR24, + .bpp = 3, + .bayer = false, + }, + { + .code = { + MEDIA_BUS_FMT_RGB888_1X24, + MEDIA_BUS_FMT_RGB888_2X12_BE, + MEDIA_BUS_FMT_RGB888_2X12_LE, + MEDIA_BUS_FMT_RGB888_3X8, + MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, + MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA, + MEDIA_BUS_FMT_RGB888_1X32_PADHI, + MEDIA_BUS_FMT_GBR888_1X24 + }, + .pixelformat = V4L2_PIX_FMT_RGB24, + .bpp = 3, + .bayer = false, + }, + { + .code = { MEDIA_BUS_FMT_ARGB8888_1X32 }, + .pixelformat = V4L2_PIX_FMT_ARGB32, + .bpp = 4, + .bayer = false, + }, + + /* Bayer formats */ + { + .code = { MEDIA_BUS_FMT_SBGGR8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SBGGR8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGBRG8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGBRG8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGRBG8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGRBG8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SRGGB8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SRGGB8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SBGGR10_1X10 }, + .pixelformat = V4L2_PIX_FMT_SBGGR10, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGBRG10_1X10 }, + .pixelformat = V4L2_PIX_FMT_SGBRG10, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGRBG10_1X10 }, + .pixelformat = V4L2_PIX_FMT_SGRBG10, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SRGGB10_1X10 }, + .pixelformat = V4L2_PIX_FMT_SRGGB10, + .bpp = 2, + .bayer = true, + }, + + /* 10bit raw bayer a-law compressed to 8 bits */ + { + .code = { MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SBGGR10ALAW8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGBRG10ALAW8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGRBG10ALAW8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SRGGB10ALAW8, + .bpp = 1, + .bayer = true, + }, + + /* 10bit raw bayer DPCM compressed to 8 bits */ + { + .code = { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SBGGR10DPCM8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGBRG10DPCM8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8 }, + .pixelformat = V4L2_PIX_FMT_SRGGB10DPCM8, + .bpp = 1, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SBGGR12_1X12 }, + .pixelformat = V4L2_PIX_FMT_SBGGR12, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGBRG12_1X12 }, + .pixelformat = V4L2_PIX_FMT_SGBRG12, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SGRBG12_1X12 }, + .pixelformat = V4L2_PIX_FMT_SGRBG12, + .bpp = 2, + .bayer = true, + }, + { + .code = { MEDIA_BUS_FMT_SRGGB12_1X12 }, + .pixelformat = V4L2_PIX_FMT_SRGGB12, + .bpp = 2, + .bayer = true, + }, +}; + +bool vimc_is_source(struct media_entity *ent) +{ + unsigned int i; + + for (i = 0; i < ent->num_pads; i++) + if (ent->pads[i].flags & MEDIA_PAD_FL_SINK) + return false; + return true; +} + +const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i) +{ + if (i >= ARRAY_SIZE(vimc_pix_map_list)) + return NULL; + + return &vimc_pix_map_list[i]; +} + +u32 vimc_mbus_code_by_index(unsigned int index) +{ + unsigned int i, j; + + for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) { + for (j = 0; j < ARRAY_SIZE(vimc_pix_map_list[i].code); j++) { + if (!vimc_pix_map_list[i].code[j]) + break; + + if (!index) + return vimc_pix_map_list[i].code[j]; + index--; + } + } + return 0; +} + +const struct vimc_pix_map *vimc_pix_map_by_code(u32 code) +{ + unsigned int i, j; + + for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) { + for (j = 0; j < ARRAY_SIZE(vimc_pix_map_list[i].code); j++) { + if (vimc_pix_map_list[i].code[j] == code) + return &vimc_pix_map_list[i]; + } + } + return NULL; +} + +const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) { + if (vimc_pix_map_list[i].pixelformat == pixelformat) + return &vimc_pix_map_list[i]; + } + return NULL; +} + +static int vimc_get_pix_format(struct media_pad *pad, + struct v4l2_pix_format *fmt) +{ + if (is_media_entity_v4l2_subdev(pad->entity)) { + struct v4l2_subdev *sd = + media_entity_to_v4l2_subdev(pad->entity); + struct v4l2_subdev_format sd_fmt; + const struct vimc_pix_map *pix_map; + int ret; + + sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + sd_fmt.pad = pad->index; + + ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt); + if (ret) + return ret; + + v4l2_fill_pix_format(fmt, &sd_fmt.format); + pix_map = vimc_pix_map_by_code(sd_fmt.format.code); + fmt->pixelformat = pix_map->pixelformat; + } else if (is_media_entity_v4l2_video_device(pad->entity)) { + struct video_device *vdev = container_of(pad->entity, + struct video_device, + entity); + struct vimc_ent_device *ved = video_get_drvdata(vdev); + + if (!ved->vdev_get_format) + return -ENOIOCTLCMD; + + ved->vdev_get_format(ved, fmt); + } else { + return -EINVAL; + } + + return 0; +} + +int vimc_vdev_link_validate(struct media_link *link) +{ + struct v4l2_pix_format source_fmt, sink_fmt; + int ret; + + ret = vimc_get_pix_format(link->source, &source_fmt); + if (ret) + return ret; + + ret = vimc_get_pix_format(link->sink, &sink_fmt); + if (ret) + return ret; + + pr_info("vimc link validate: " + "%s:src:%dx%d (0x%x, %d, %d, %d, %d) " + "%s:snk:%dx%d (0x%x, %d, %d, %d, %d)\n", + /* src */ + link->source->entity->name, + source_fmt.width, source_fmt.height, + source_fmt.pixelformat, source_fmt.colorspace, + source_fmt.quantization, source_fmt.xfer_func, + source_fmt.ycbcr_enc, + /* sink */ + link->sink->entity->name, + sink_fmt.width, sink_fmt.height, + sink_fmt.pixelformat, sink_fmt.colorspace, + sink_fmt.quantization, sink_fmt.xfer_func, + sink_fmt.ycbcr_enc); + + /* The width, height and pixelformat must match. */ + if (source_fmt.width != sink_fmt.width || + source_fmt.height != sink_fmt.height || + source_fmt.pixelformat != sink_fmt.pixelformat) + return -EPIPE; + + /* + * The field order must match, or the sink field order must be NONE + * to support interlaced hardware connected to bridges that support + * progressive formats only. + */ + if (source_fmt.field != sink_fmt.field && + sink_fmt.field != V4L2_FIELD_NONE) + return -EPIPE; + + /* + * If colorspace is DEFAULT, then assume all the colorimetry is also + * DEFAULT, return 0 to skip comparing the other colorimetry parameters + */ + if (source_fmt.colorspace == V4L2_COLORSPACE_DEFAULT || + sink_fmt.colorspace == V4L2_COLORSPACE_DEFAULT) + return 0; + + /* Colorspace must match. */ + if (source_fmt.colorspace != sink_fmt.colorspace) + return -EPIPE; + + /* Colorimetry must match if they are not set to DEFAULT */ + if (source_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT && + sink_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT && + source_fmt.ycbcr_enc != sink_fmt.ycbcr_enc) + return -EPIPE; + + if (source_fmt.quantization != V4L2_QUANTIZATION_DEFAULT && + sink_fmt.quantization != V4L2_QUANTIZATION_DEFAULT && + source_fmt.quantization != sink_fmt.quantization) + return -EPIPE; + + if (source_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT && + sink_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT && + source_fmt.xfer_func != sink_fmt.xfer_func) + return -EPIPE; + + return 0; +} + +static const struct media_entity_operations vimc_ent_sd_mops = { + .link_validate = v4l2_subdev_link_validate, +}; + +int vimc_ent_sd_register(struct vimc_ent_device *ved, + struct v4l2_subdev *sd, + struct v4l2_device *v4l2_dev, + const char *const name, + u32 function, + u16 num_pads, + struct media_pad *pads, + const struct v4l2_subdev_ops *sd_ops) +{ + int ret; + + /* Fill the vimc_ent_device struct */ + ved->ent = &sd->entity; + + /* Initialize the subdev */ + v4l2_subdev_init(sd, sd_ops); + sd->entity.function = function; + sd->entity.ops = &vimc_ent_sd_mops; + sd->owner = THIS_MODULE; + strscpy(sd->name, name, sizeof(sd->name)); + v4l2_set_subdevdata(sd, ved); + + /* Expose this subdev to user space */ + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + if (sd->ctrl_handler) + sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS; + + /* Initialize the media entity */ + ret = media_entity_pads_init(&sd->entity, num_pads, pads); + if (ret) + return ret; + + /* Register the subdev with the v4l2 and the media framework */ + ret = v4l2_device_register_subdev(v4l2_dev, sd); + if (ret) { + dev_err(v4l2_dev->dev, + "%s: subdev register failed (err=%d)\n", + name, ret); + goto err_clean_m_ent; + } + + return 0; + +err_clean_m_ent: + media_entity_cleanup(&sd->entity); + return ret; +} diff --git a/drivers/media/test-drivers/vimc/vimc-common.h b/drivers/media/test-drivers/vimc/vimc-common.h new file mode 100644 index 000000000..7641a101a --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-common.h @@ -0,0 +1,241 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * vimc-common.h Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#ifndef _VIMC_COMMON_H_ +#define _VIMC_COMMON_H_ + +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <media/media-device.h> +#include <media/v4l2-device.h> + +#define VIMC_PDEV_NAME "vimc" + +/* VIMC-specific controls */ +#define VIMC_CID_VIMC_BASE (0x00f00000 | 0xf000) +#define VIMC_CID_VIMC_CLASS (0x00f00000 | 1) +#define VIMC_CID_TEST_PATTERN (VIMC_CID_VIMC_BASE + 0) +#define VIMC_CID_MEAN_WIN_SIZE (VIMC_CID_VIMC_BASE + 1) +#define VIMC_CID_OSD_TEXT_MODE (VIMC_CID_VIMC_BASE + 2) + +#define VIMC_FRAME_MAX_WIDTH 4096 +#define VIMC_FRAME_MAX_HEIGHT 2160 +#define VIMC_FRAME_MIN_WIDTH 16 +#define VIMC_FRAME_MIN_HEIGHT 16 + +#define VIMC_FRAME_INDEX(lin, col, width, bpp) ((lin * width + col) * bpp) + +/* Source and sink pad checks */ +#define VIMC_IS_SRC(pad) (pad) +#define VIMC_IS_SINK(pad) (!(pad)) + +#define VIMC_PIX_FMT_MAX_CODES 8 + +extern unsigned int vimc_allocator; + +enum vimc_allocator_type { + VIMC_ALLOCATOR_VMALLOC = 0, + VIMC_ALLOCATOR_DMA_CONTIG = 1, +}; + +/** + * vimc_colorimetry_clamp - Adjust colorimetry parameters + * + * @fmt: the pointer to struct v4l2_pix_format or + * struct v4l2_mbus_framefmt + * + * Entities must check if colorimetry given by the userspace is valid, if not + * then set them as DEFAULT + */ +#define vimc_colorimetry_clamp(fmt) \ +do { \ + if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT \ + || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) { \ + (fmt)->colorspace = V4L2_COLORSPACE_DEFAULT; \ + (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ + (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ + (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ + } \ + if ((fmt)->ycbcr_enc > V4L2_YCBCR_ENC_SMPTE240M) \ + (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ + if ((fmt)->quantization > V4L2_QUANTIZATION_LIM_RANGE) \ + (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ + if ((fmt)->xfer_func > V4L2_XFER_FUNC_SMPTE2084) \ + (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ +} while (0) + +/** + * struct vimc_pix_map - maps media bus code with v4l2 pixel format + * + * @code: media bus format code defined by MEDIA_BUS_FMT_* macros + * @bpp: number of bytes each pixel occupies + * @pixelformat: pixel format defined by V4L2_PIX_FMT_* macros + * @bayer: true if this is a bayer format + * + * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding + * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp) + */ +struct vimc_pix_map { + unsigned int code[VIMC_PIX_FMT_MAX_CODES]; + unsigned int bpp; + u32 pixelformat; + bool bayer; +}; + +/** + * struct vimc_ent_device - core struct that represents an entity in the + * topology + * + * @dev: a pointer of the device struct of the driver + * @ent: the pointer to struct media_entity for the node + * @process_frame: callback send a frame to that node + * @vdev_get_format: callback that returns the current format a pad, used + * only when is_media_entity_v4l2_video_device(ent) returns + * true + * + * Each node of the topology must create a vimc_ent_device struct. Depending on + * the node it will be of an instance of v4l2_subdev or video_device struct + * where both contains a struct media_entity. + * Those structures should embedded the vimc_ent_device struct through + * v4l2_set_subdevdata() and video_set_drvdata() respectively, allowing the + * vimc_ent_device struct to be retrieved from the corresponding struct + * media_entity + */ +struct vimc_ent_device { + struct device *dev; + struct media_entity *ent; + void * (*process_frame)(struct vimc_ent_device *ved, + const void *frame); + void (*vdev_get_format)(struct vimc_ent_device *ved, + struct v4l2_pix_format *fmt); +}; + +/** + * struct vimc_device - main device for vimc driver + * + * @pipe_cfg: pointer to the vimc pipeline configuration structure + * @ent_devs: array of vimc_ent_device pointers + * @mdev: the associated media_device parent + * @v4l2_dev: Internal v4l2 parent device + */ +struct vimc_device { + const struct vimc_pipeline_config *pipe_cfg; + struct vimc_ent_device **ent_devs; + struct media_device mdev; + struct v4l2_device v4l2_dev; +}; + +/** + * struct vimc_ent_type Structure for the callbacks of the entity types + * + * + * @add: initializes and registers + * vimc entity - called from vimc-core + * @unregister: unregisters vimc entity - called from vimc-core + * @release: releases vimc entity - called from the v4l2_dev + * release callback + */ +struct vimc_ent_type { + struct vimc_ent_device *(*add)(struct vimc_device *vimc, + const char *vcfg_name); + void (*unregister)(struct vimc_ent_device *ved); + void (*release)(struct vimc_ent_device *ved); +}; + +/** + * struct vimc_ent_config Structure which describes individual + * configuration for each entity + * + * @name: entity name + * @type: contain the callbacks of this entity type + * + */ +struct vimc_ent_config { + const char *name; + struct vimc_ent_type *type; +}; + +/** + * vimc_is_source - returns true if the entity has only source pads + * + * @ent: pointer to &struct media_entity + * + */ +bool vimc_is_source(struct media_entity *ent); + +extern struct vimc_ent_type vimc_sensor_type; +extern struct vimc_ent_type vimc_debayer_type; +extern struct vimc_ent_type vimc_scaler_type; +extern struct vimc_ent_type vimc_capture_type; +extern struct vimc_ent_type vimc_lens_type; + +/** + * vimc_pix_map_by_index - get vimc_pix_map struct by its index + * + * @i: index of the vimc_pix_map struct in vimc_pix_map_list + */ +const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i); + +/** + * vimc_mbus_code_by_index - get mbus code by its index + * + * @index: index of the mbus code in vimc_pix_map_list + * + * Returns 0 if no mbus code is found for the given index. + */ +u32 vimc_mbus_code_by_index(unsigned int index); + +/** + * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code + * + * @code: media bus format code defined by MEDIA_BUS_FMT_* macros + */ +const struct vimc_pix_map *vimc_pix_map_by_code(u32 code); + +/** + * vimc_pix_map_by_pixelformat - get vimc_pix_map struct by v4l2 pixel format + * + * @pixelformat: pixel format defined by V4L2_PIX_FMT_* macros + */ +const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat); + +/** + * vimc_ent_sd_register - initialize and register a subdev node + * + * @ved: the vimc_ent_device struct to be initialize + * @sd: the v4l2_subdev struct to be initialize and registered + * @v4l2_dev: the v4l2 device to register the v4l2_subdev + * @name: name of the sub-device. Please notice that the name must be + * unique. + * @function: media entity function defined by MEDIA_ENT_F_* macros + * @num_pads: number of pads to initialize + * @pads: the array of pads of the entity, the caller should set the + * flags of the pads + * @sd_ops: pointer to &struct v4l2_subdev_ops. + * + * Helper function initialize and register the struct vimc_ent_device and struct + * v4l2_subdev which represents a subdev node in the topology + */ +int vimc_ent_sd_register(struct vimc_ent_device *ved, + struct v4l2_subdev *sd, + struct v4l2_device *v4l2_dev, + const char *const name, + u32 function, + u16 num_pads, + struct media_pad *pads, + const struct v4l2_subdev_ops *sd_ops); + +/** + * vimc_vdev_link_validate - validates a media link + * + * @link: pointer to &struct media_link + * + * This function calls validates if a media link is valid for streaming. + */ +int vimc_vdev_link_validate(struct media_link *link); + +#endif diff --git a/drivers/media/test-drivers/vimc/vimc-core.c b/drivers/media/test-drivers/vimc/vimc-core.c new file mode 100644 index 000000000..e82cfa5ff --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-core.c @@ -0,0 +1,455 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-core.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <linux/dma-mapping.h> +#include <linux/font.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <media/media-device.h> +#include <media/tpg/v4l2-tpg.h> +#include <media/v4l2-device.h> + +#include "vimc-common.h" + +unsigned int vimc_allocator; +module_param_named(allocator, vimc_allocator, uint, 0444); +MODULE_PARM_DESC(allocator, " memory allocator selection, default is 0.\n" + "\t\t 0 == vmalloc\n" + "\t\t 1 == dma-contig"); + +#define VIMC_MDEV_MODEL_NAME "VIMC MDEV" + +#define VIMC_DATA_LINK(src, srcpad, sink, sinkpad, link_flags) { \ + .src_ent = src, \ + .src_pad = srcpad, \ + .sink_ent = sink, \ + .sink_pad = sinkpad, \ + .flags = link_flags, \ +} + +#define VIMC_ANCILLARY_LINK(primary, ancillary) { \ + .primary_ent = primary, \ + .ancillary_ent = ancillary \ +} + +/* Structure which describes data links between entities */ +struct vimc_data_link { + unsigned int src_ent; + u16 src_pad; + unsigned int sink_ent; + u16 sink_pad; + u32 flags; +}; + +/* Enum to improve clarity when defining vimc_data_links */ +enum vimc_data_link_ents { + SENSOR_A, + SENSOR_B, + DEBAYER_A, + DEBAYER_B, + RAW_CAPTURE_0, + RAW_CAPTURE_1, + RGB_YUV_INPUT, + SCALER, + RGB_YUV_CAPTURE, + LENS_A, + LENS_B, +}; + +/* Structure which describes ancillary links between entities */ +struct vimc_ancillary_link { + unsigned int primary_ent; + unsigned int ancillary_ent; +}; + +/* Structure which describes the whole topology */ +struct vimc_pipeline_config { + const struct vimc_ent_config *ents; + size_t num_ents; + const struct vimc_data_link *data_links; + size_t num_data_links; + const struct vimc_ancillary_link *ancillary_links; + size_t num_ancillary_links; +}; + +/* -------------------------------------------------------------------------- + * Topology Configuration + */ + +static struct vimc_ent_config ent_config[] = { + [SENSOR_A] = { + .name = "Sensor A", + .type = &vimc_sensor_type + }, + [SENSOR_B] = { + .name = "Sensor B", + .type = &vimc_sensor_type + }, + [DEBAYER_A] = { + .name = "Debayer A", + .type = &vimc_debayer_type + }, + [DEBAYER_B] = { + .name = "Debayer B", + .type = &vimc_debayer_type + }, + [RAW_CAPTURE_0] = { + .name = "Raw Capture 0", + .type = &vimc_capture_type + }, + [RAW_CAPTURE_1] = { + .name = "Raw Capture 1", + .type = &vimc_capture_type + }, + [RGB_YUV_INPUT] = { + /* TODO: change this to vimc-input when it is implemented */ + .name = "RGB/YUV Input", + .type = &vimc_sensor_type + }, + [SCALER] = { + .name = "Scaler", + .type = &vimc_scaler_type + }, + [RGB_YUV_CAPTURE] = { + .name = "RGB/YUV Capture", + .type = &vimc_capture_type + }, + [LENS_A] = { + .name = "Lens A", + .type = &vimc_lens_type + }, + [LENS_B] = { + .name = "Lens B", + .type = &vimc_lens_type + }, +}; + +static const struct vimc_data_link data_links[] = { + /* Link: Sensor A (Pad 0)->(Pad 0) Debayer A */ + VIMC_DATA_LINK(SENSOR_A, 0, DEBAYER_A, 0, + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), + /* Link: Sensor A (Pad 0)->(Pad 0) Raw Capture 0 */ + VIMC_DATA_LINK(SENSOR_A, 0, RAW_CAPTURE_0, 0, + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), + /* Link: Sensor B (Pad 0)->(Pad 0) Debayer B */ + VIMC_DATA_LINK(SENSOR_B, 0, DEBAYER_B, 0, + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), + /* Link: Sensor B (Pad 0)->(Pad 0) Raw Capture 1 */ + VIMC_DATA_LINK(SENSOR_B, 0, RAW_CAPTURE_1, 0, + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), + /* Link: Debayer A (Pad 1)->(Pad 0) Scaler */ + VIMC_DATA_LINK(DEBAYER_A, 1, SCALER, 0, MEDIA_LNK_FL_ENABLED), + /* Link: Debayer B (Pad 1)->(Pad 0) Scaler */ + VIMC_DATA_LINK(DEBAYER_B, 1, SCALER, 0, 0), + /* Link: RGB/YUV Input (Pad 0)->(Pad 0) Scaler */ + VIMC_DATA_LINK(RGB_YUV_INPUT, 0, SCALER, 0, 0), + /* Link: Scaler (Pad 1)->(Pad 0) RGB/YUV Capture */ + VIMC_DATA_LINK(SCALER, 1, RGB_YUV_CAPTURE, 0, + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE), +}; + +static const struct vimc_ancillary_link ancillary_links[] = { + /* Link: Sensor A -> Lens A */ + VIMC_ANCILLARY_LINK(0, 9), + /* Link: Sensor B -> Lens B */ + VIMC_ANCILLARY_LINK(1, 10), +}; + +static struct vimc_pipeline_config pipe_cfg = { + .ents = ent_config, + .num_ents = ARRAY_SIZE(ent_config), + .data_links = data_links, + .num_data_links = ARRAY_SIZE(data_links), + .ancillary_links = ancillary_links, + .num_ancillary_links = ARRAY_SIZE(ancillary_links), +}; + +/* -------------------------------------------------------------------------- */ + +static void vimc_rm_links(struct vimc_device *vimc) +{ + unsigned int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) + media_entity_remove_links(vimc->ent_devs[i]->ent); +} + +static int vimc_create_links(struct vimc_device *vimc) +{ + unsigned int i; + int ret; + + /* Initialize the links between entities */ + for (i = 0; i < vimc->pipe_cfg->num_data_links; i++) { + const struct vimc_data_link *link = &vimc->pipe_cfg->data_links[i]; + + struct vimc_ent_device *ved_src = + vimc->ent_devs[link->src_ent]; + struct vimc_ent_device *ved_sink = + vimc->ent_devs[link->sink_ent]; + + ret = media_create_pad_link(ved_src->ent, link->src_pad, + ved_sink->ent, link->sink_pad, + link->flags); + if (ret) + goto err_rm_links; + } + + for (i = 0; i < vimc->pipe_cfg->num_ancillary_links; i++) { + const struct vimc_ancillary_link *link = &vimc->pipe_cfg->ancillary_links[i]; + + struct vimc_ent_device *ved_primary = + vimc->ent_devs[link->primary_ent]; + struct vimc_ent_device *ved_ancillary = + vimc->ent_devs[link->ancillary_ent]; + struct media_link *ret_link = + media_create_ancillary_link(ved_primary->ent, ved_ancillary->ent); + + if (IS_ERR(ret_link)) { + ret = PTR_ERR(ret_link); + goto err_rm_links; + } + } + + return 0; + +err_rm_links: + vimc_rm_links(vimc); + return ret; +} + +static void vimc_release_subdevs(struct vimc_device *vimc) +{ + unsigned int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) + if (vimc->ent_devs[i]) + vimc->pipe_cfg->ents[i].type->release(vimc->ent_devs[i]); +} + +static void vimc_unregister_subdevs(struct vimc_device *vimc) +{ + unsigned int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) + if (vimc->ent_devs[i] && vimc->pipe_cfg->ents[i].type->unregister) + vimc->pipe_cfg->ents[i].type->unregister(vimc->ent_devs[i]); +} + +static int vimc_add_subdevs(struct vimc_device *vimc) +{ + unsigned int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) { + dev_dbg(vimc->mdev.dev, "new entity for %s\n", + vimc->pipe_cfg->ents[i].name); + vimc->ent_devs[i] = vimc->pipe_cfg->ents[i].type->add(vimc, + vimc->pipe_cfg->ents[i].name); + if (IS_ERR(vimc->ent_devs[i])) { + int err = PTR_ERR(vimc->ent_devs[i]); + + dev_err(vimc->mdev.dev, "adding entity %s failed (%d)\n", + vimc->pipe_cfg->ents[i].name, err); + vimc->ent_devs[i] = NULL; + vimc_unregister_subdevs(vimc); + vimc_release_subdevs(vimc); + return err; + } + } + return 0; +} + +static void vimc_v4l2_dev_release(struct v4l2_device *v4l2_dev) +{ + struct vimc_device *vimc = + container_of(v4l2_dev, struct vimc_device, v4l2_dev); + + vimc_release_subdevs(vimc); + media_device_cleanup(&vimc->mdev); + kfree(vimc->ent_devs); + kfree(vimc); +} + +static int vimc_register_devices(struct vimc_device *vimc) +{ + int ret; + + /* Register the v4l2 struct */ + ret = v4l2_device_register(vimc->mdev.dev, &vimc->v4l2_dev); + if (ret) { + dev_err(vimc->mdev.dev, + "v4l2 device register failed (err=%d)\n", ret); + return ret; + } + /* allocate ent_devs */ + vimc->ent_devs = kcalloc(vimc->pipe_cfg->num_ents, + sizeof(*vimc->ent_devs), GFP_KERNEL); + if (!vimc->ent_devs) { + ret = -ENOMEM; + goto err_v4l2_unregister; + } + + /* Invoke entity config hooks to initialize and register subdevs */ + ret = vimc_add_subdevs(vimc); + if (ret) + goto err_free_ent_devs; + + /* Initialize links */ + ret = vimc_create_links(vimc); + if (ret) + goto err_rm_subdevs; + + /* Register the media device */ + ret = media_device_register(&vimc->mdev); + if (ret) { + dev_err(vimc->mdev.dev, + "media device register failed (err=%d)\n", ret); + goto err_rm_subdevs; + } + + /* Expose all subdev's nodes*/ + ret = v4l2_device_register_subdev_nodes(&vimc->v4l2_dev); + if (ret) { + dev_err(vimc->mdev.dev, + "vimc subdev nodes registration failed (err=%d)\n", + ret); + goto err_mdev_unregister; + } + + return 0; + +err_mdev_unregister: + media_device_unregister(&vimc->mdev); +err_rm_subdevs: + vimc_unregister_subdevs(vimc); + vimc_release_subdevs(vimc); +err_free_ent_devs: + kfree(vimc->ent_devs); +err_v4l2_unregister: + v4l2_device_unregister(&vimc->v4l2_dev); + + return ret; +} + +static int vimc_probe(struct platform_device *pdev) +{ + const struct font_desc *font = find_font("VGA8x16"); + struct vimc_device *vimc; + int ret; + + dev_dbg(&pdev->dev, "probe"); + + if (!font) { + dev_err(&pdev->dev, "could not find font\n"); + return -ENODEV; + } + + tpg_set_font(font->data); + + if (vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG) + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + + vimc = kzalloc(sizeof(*vimc), GFP_KERNEL); + if (!vimc) + return -ENOMEM; + + vimc->pipe_cfg = &pipe_cfg; + + /* Link the media device within the v4l2_device */ + vimc->v4l2_dev.mdev = &vimc->mdev; + + /* Initialize media device */ + strscpy(vimc->mdev.model, VIMC_MDEV_MODEL_NAME, + sizeof(vimc->mdev.model)); + snprintf(vimc->mdev.bus_info, sizeof(vimc->mdev.bus_info), + "platform:%s", VIMC_PDEV_NAME); + vimc->mdev.dev = &pdev->dev; + media_device_init(&vimc->mdev); + + ret = vimc_register_devices(vimc); + if (ret) { + media_device_cleanup(&vimc->mdev); + kfree(vimc); + return ret; + } + /* + * the release cb is set only after successful registration. + * if the registration fails, we release directly from probe + */ + + vimc->v4l2_dev.release = vimc_v4l2_dev_release; + platform_set_drvdata(pdev, vimc); + return 0; +} + +static int vimc_remove(struct platform_device *pdev) +{ + struct vimc_device *vimc = platform_get_drvdata(pdev); + + dev_dbg(&pdev->dev, "remove"); + + vimc_unregister_subdevs(vimc); + media_device_unregister(&vimc->mdev); + v4l2_device_unregister(&vimc->v4l2_dev); + v4l2_device_put(&vimc->v4l2_dev); + + return 0; +} + +static void vimc_dev_release(struct device *dev) +{ +} + +static struct platform_device vimc_pdev = { + .name = VIMC_PDEV_NAME, + .dev.release = vimc_dev_release, +}; + +static struct platform_driver vimc_pdrv = { + .probe = vimc_probe, + .remove = vimc_remove, + .driver = { + .name = VIMC_PDEV_NAME, + }, +}; + +static int __init vimc_init(void) +{ + int ret; + + ret = platform_device_register(&vimc_pdev); + if (ret) { + dev_err(&vimc_pdev.dev, + "platform device registration failed (err=%d)\n", ret); + return ret; + } + + ret = platform_driver_register(&vimc_pdrv); + if (ret) { + dev_err(&vimc_pdev.dev, + "platform driver registration failed (err=%d)\n", ret); + platform_device_unregister(&vimc_pdev); + return ret; + } + + return 0; +} + +static void __exit vimc_exit(void) +{ + platform_driver_unregister(&vimc_pdrv); + + platform_device_unregister(&vimc_pdev); +} + +module_init(vimc_init); +module_exit(vimc_exit); + +MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC)"); +MODULE_AUTHOR("Helen Fornazier <helen.fornazier@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/test-drivers/vimc/vimc-debayer.c b/drivers/media/test-drivers/vimc/vimc-debayer.c new file mode 100644 index 000000000..f671251fd --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-debayer.c @@ -0,0 +1,626 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-debayer.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <linux/moduleparam.h> +#include <linux/platform_device.h> +#include <linux/vmalloc.h> +#include <linux/v4l2-mediabus.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/v4l2-subdev.h> + +#include "vimc-common.h" + +enum vimc_debayer_rgb_colors { + VIMC_DEBAYER_RED = 0, + VIMC_DEBAYER_GREEN = 1, + VIMC_DEBAYER_BLUE = 2, +}; + +struct vimc_debayer_pix_map { + u32 code; + enum vimc_debayer_rgb_colors order[2][2]; +}; + +struct vimc_debayer_device { + struct vimc_ent_device ved; + struct v4l2_subdev sd; + /* The active format */ + struct v4l2_mbus_framefmt sink_fmt; + u32 src_code; + void (*set_rgb_src)(struct vimc_debayer_device *vdebayer, + unsigned int lin, unsigned int col, + unsigned int rgb[3]); + /* Values calculated when the stream starts */ + u8 *src_frame; + const struct vimc_debayer_pix_map *sink_pix_map; + unsigned int sink_bpp; + unsigned int mean_win_size; + struct v4l2_ctrl_handler hdl; + struct media_pad pads[2]; +}; + +static const struct v4l2_mbus_framefmt sink_fmt_default = { + .width = 640, + .height = 480, + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, +}; + +static const u32 vimc_debayer_src_mbus_codes[] = { + MEDIA_BUS_FMT_GBR888_1X24, + MEDIA_BUS_FMT_BGR888_1X24, + MEDIA_BUS_FMT_BGR888_3X8, + MEDIA_BUS_FMT_RGB888_1X24, + MEDIA_BUS_FMT_RGB888_2X12_BE, + MEDIA_BUS_FMT_RGB888_2X12_LE, + MEDIA_BUS_FMT_RGB888_3X8, + MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, + MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA, + MEDIA_BUS_FMT_RGB888_1X32_PADHI, +}; + +static const struct vimc_debayer_pix_map vimc_debayer_pix_map_list[] = { + { + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } } + }, + { + .code = MEDIA_BUS_FMT_SGBRG8_1X8, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE }, + { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SGRBG8_1X8, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED }, + { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } } + }, + { + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } } + }, + { + .code = MEDIA_BUS_FMT_SGBRG10_1X10, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE }, + { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SGRBG10_1X10, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED }, + { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } } + }, + { + .code = MEDIA_BUS_FMT_SBGGR12_1X12, + .order = { { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED } } + }, + { + .code = MEDIA_BUS_FMT_SGBRG12_1X12, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE }, + { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SGRBG12_1X12, + .order = { { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_RED }, + { VIMC_DEBAYER_BLUE, VIMC_DEBAYER_GREEN } } + }, + { + .code = MEDIA_BUS_FMT_SRGGB12_1X12, + .order = { { VIMC_DEBAYER_RED, VIMC_DEBAYER_GREEN }, + { VIMC_DEBAYER_GREEN, VIMC_DEBAYER_BLUE } } + }, +}; + +static const struct vimc_debayer_pix_map *vimc_debayer_pix_map_by_code(u32 code) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(vimc_debayer_pix_map_list); i++) + if (vimc_debayer_pix_map_list[i].code == code) + return &vimc_debayer_pix_map_list[i]; + + return NULL; +} + +static bool vimc_debayer_src_code_is_valid(u32 code) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(vimc_debayer_src_mbus_codes); i++) + if (vimc_debayer_src_mbus_codes[i] == code) + return true; + + return false; +} + +static int vimc_debayer_init_cfg(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state) +{ + struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *mf; + unsigned int i; + + mf = v4l2_subdev_get_try_format(sd, sd_state, 0); + *mf = sink_fmt_default; + + for (i = 1; i < sd->entity.num_pads; i++) { + mf = v4l2_subdev_get_try_format(sd, sd_state, i); + *mf = sink_fmt_default; + mf->code = vdebayer->src_code; + } + + return 0; +} + +static int vimc_debayer_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (VIMC_IS_SRC(code->pad)) { + if (code->index >= ARRAY_SIZE(vimc_debayer_src_mbus_codes)) + return -EINVAL; + + code->code = vimc_debayer_src_mbus_codes[code->index]; + } else { + if (code->index >= ARRAY_SIZE(vimc_debayer_pix_map_list)) + return -EINVAL; + + code->code = vimc_debayer_pix_map_list[code->index].code; + } + + return 0; +} + +static int vimc_debayer_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index) + return -EINVAL; + + if (VIMC_IS_SINK(fse->pad)) { + const struct vimc_debayer_pix_map *vpix = + vimc_debayer_pix_map_by_code(fse->code); + + if (!vpix) + return -EINVAL; + } else if (!vimc_debayer_src_code_is_valid(fse->code)) { + return -EINVAL; + } + + fse->min_width = VIMC_FRAME_MIN_WIDTH; + fse->max_width = VIMC_FRAME_MAX_WIDTH; + fse->min_height = VIMC_FRAME_MIN_HEIGHT; + fse->max_height = VIMC_FRAME_MAX_HEIGHT; + + return 0; +} + +static int vimc_debayer_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd); + + /* Get the current sink format */ + fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ? + *v4l2_subdev_get_try_format(sd, sd_state, 0) : + vdebayer->sink_fmt; + + /* Set the right code for the source pad */ + if (VIMC_IS_SRC(fmt->pad)) + fmt->format.code = vdebayer->src_code; + + return 0; +} + +static void vimc_debayer_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt) +{ + const struct vimc_debayer_pix_map *vpix; + + /* Don't accept a code that is not on the debayer table */ + vpix = vimc_debayer_pix_map_by_code(fmt->code); + if (!vpix) + fmt->code = sink_fmt_default.code; + + fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH, + VIMC_FRAME_MAX_WIDTH) & ~1; + fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT, + VIMC_FRAME_MAX_HEIGHT) & ~1; + + if (fmt->field == V4L2_FIELD_ANY) + fmt->field = sink_fmt_default.field; + + vimc_colorimetry_clamp(fmt); +} + +static int vimc_debayer_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *sink_fmt; + u32 *src_code; + + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + /* Do not change the format while stream is on */ + if (vdebayer->src_frame) + return -EBUSY; + + sink_fmt = &vdebayer->sink_fmt; + src_code = &vdebayer->src_code; + } else { + sink_fmt = v4l2_subdev_get_try_format(sd, sd_state, 0); + src_code = &v4l2_subdev_get_try_format(sd, sd_state, 1)->code; + } + + /* + * Do not change the format of the source pad, + * it is propagated from the sink + */ + if (VIMC_IS_SRC(fmt->pad)) { + u32 code = fmt->format.code; + + fmt->format = *sink_fmt; + + if (vimc_debayer_src_code_is_valid(code)) + *src_code = code; + + fmt->format.code = *src_code; + } else { + /* Set the new format in the sink pad */ + vimc_debayer_adjust_sink_fmt(&fmt->format); + + dev_dbg(vdebayer->ved.dev, "%s: sink format update: " + "old:%dx%d (0x%x, %d, %d, %d, %d) " + "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vdebayer->sd.name, + /* old */ + sink_fmt->width, sink_fmt->height, sink_fmt->code, + sink_fmt->colorspace, sink_fmt->quantization, + sink_fmt->xfer_func, sink_fmt->ycbcr_enc, + /* new */ + fmt->format.width, fmt->format.height, fmt->format.code, + fmt->format.colorspace, fmt->format.quantization, + fmt->format.xfer_func, fmt->format.ycbcr_enc); + + *sink_fmt = fmt->format; + } + + return 0; +} + +static const struct v4l2_subdev_pad_ops vimc_debayer_pad_ops = { + .init_cfg = vimc_debayer_init_cfg, + .enum_mbus_code = vimc_debayer_enum_mbus_code, + .enum_frame_size = vimc_debayer_enum_frame_size, + .get_fmt = vimc_debayer_get_fmt, + .set_fmt = vimc_debayer_set_fmt, +}; + +static void vimc_debayer_process_rgb_frame(struct vimc_debayer_device *vdebayer, + unsigned int lin, + unsigned int col, + unsigned int rgb[3]) +{ + const struct vimc_pix_map *vpix; + unsigned int i, index; + + vpix = vimc_pix_map_by_code(vdebayer->src_code); + index = VIMC_FRAME_INDEX(lin, col, vdebayer->sink_fmt.width, 3); + for (i = 0; i < 3; i++) { + switch (vpix->pixelformat) { + case V4L2_PIX_FMT_RGB24: + vdebayer->src_frame[index + i] = rgb[i]; + break; + case V4L2_PIX_FMT_BGR24: + vdebayer->src_frame[index + i] = rgb[2 - i]; + break; + } + } +} + +static int vimc_debayer_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct vimc_debayer_device *vdebayer = v4l2_get_subdevdata(sd); + + if (enable) { + const struct vimc_pix_map *vpix; + unsigned int frame_size; + + if (vdebayer->src_frame) + return 0; + + /* Calculate the frame size of the source pad */ + vpix = vimc_pix_map_by_code(vdebayer->src_code); + frame_size = vdebayer->sink_fmt.width * vdebayer->sink_fmt.height * + vpix->bpp; + + /* Save the bytes per pixel of the sink */ + vpix = vimc_pix_map_by_code(vdebayer->sink_fmt.code); + vdebayer->sink_bpp = vpix->bpp; + + /* Get the corresponding pixel map from the table */ + vdebayer->sink_pix_map = + vimc_debayer_pix_map_by_code(vdebayer->sink_fmt.code); + + /* + * Allocate the frame buffer. Use vmalloc to be able to + * allocate a large amount of memory + */ + vdebayer->src_frame = vmalloc(frame_size); + if (!vdebayer->src_frame) + return -ENOMEM; + + } else { + if (!vdebayer->src_frame) + return 0; + + vfree(vdebayer->src_frame); + vdebayer->src_frame = NULL; + } + + return 0; +} + +static const struct v4l2_subdev_core_ops vimc_debayer_core_ops = { + .log_status = v4l2_ctrl_subdev_log_status, + .subscribe_event = v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, +}; + +static const struct v4l2_subdev_video_ops vimc_debayer_video_ops = { + .s_stream = vimc_debayer_s_stream, +}; + +static const struct v4l2_subdev_ops vimc_debayer_ops = { + .core = &vimc_debayer_core_ops, + .pad = &vimc_debayer_pad_ops, + .video = &vimc_debayer_video_ops, +}; + +static unsigned int vimc_debayer_get_val(const u8 *bytes, + const unsigned int n_bytes) +{ + unsigned int i; + unsigned int acc = 0; + + for (i = 0; i < n_bytes; i++) + acc = acc + (bytes[i] << (8 * i)); + + return acc; +} + +static void vimc_debayer_calc_rgb_sink(struct vimc_debayer_device *vdebayer, + const u8 *frame, + const unsigned int lin, + const unsigned int col, + unsigned int rgb[3]) +{ + unsigned int i, seek, wlin, wcol; + unsigned int n_rgb[3] = {0, 0, 0}; + + for (i = 0; i < 3; i++) + rgb[i] = 0; + + /* + * Calculate how many we need to subtract to get to the pixel in + * the top left corner of the mean window (considering the current + * pixel as the center) + */ + seek = vdebayer->mean_win_size / 2; + + /* Sum the values of the colors in the mean window */ + + dev_dbg(vdebayer->ved.dev, + "deb: %s: --- Calc pixel %dx%d, window mean %d, seek %d ---\n", + vdebayer->sd.name, lin, col, vdebayer->sink_fmt.height, seek); + + /* + * Iterate through all the lines in the mean window, start + * with zero if the pixel is outside the frame and don't pass + * the height when the pixel is in the bottom border of the + * frame + */ + for (wlin = seek > lin ? 0 : lin - seek; + wlin < lin + seek + 1 && wlin < vdebayer->sink_fmt.height; + wlin++) { + + /* + * Iterate through all the columns in the mean window, start + * with zero if the pixel is outside the frame and don't pass + * the width when the pixel is in the right border of the + * frame + */ + for (wcol = seek > col ? 0 : col - seek; + wcol < col + seek + 1 && wcol < vdebayer->sink_fmt.width; + wcol++) { + enum vimc_debayer_rgb_colors color; + unsigned int index; + + /* Check which color this pixel is */ + color = vdebayer->sink_pix_map->order[wlin % 2][wcol % 2]; + + index = VIMC_FRAME_INDEX(wlin, wcol, + vdebayer->sink_fmt.width, + vdebayer->sink_bpp); + + dev_dbg(vdebayer->ved.dev, + "deb: %s: RGB CALC: frame index %d, win pos %dx%d, color %d\n", + vdebayer->sd.name, index, wlin, wcol, color); + + /* Get its value */ + rgb[color] = rgb[color] + + vimc_debayer_get_val(&frame[index], + vdebayer->sink_bpp); + + /* Save how many values we already added */ + n_rgb[color]++; + + dev_dbg(vdebayer->ved.dev, "deb: %s: RGB CALC: val %d, n %d\n", + vdebayer->sd.name, rgb[color], n_rgb[color]); + } + } + + /* Calculate the mean */ + for (i = 0; i < 3; i++) { + dev_dbg(vdebayer->ved.dev, + "deb: %s: PRE CALC: %dx%d Color %d, val %d, n %d\n", + vdebayer->sd.name, lin, col, i, rgb[i], n_rgb[i]); + + if (n_rgb[i]) + rgb[i] = rgb[i] / n_rgb[i]; + + dev_dbg(vdebayer->ved.dev, + "deb: %s: FINAL CALC: %dx%d Color %d, val %d\n", + vdebayer->sd.name, lin, col, i, rgb[i]); + } +} + +static void *vimc_debayer_process_frame(struct vimc_ent_device *ved, + const void *sink_frame) +{ + struct vimc_debayer_device *vdebayer = + container_of(ved, struct vimc_debayer_device, ved); + + unsigned int rgb[3]; + unsigned int i, j; + + /* If the stream in this node is not active, just return */ + if (!vdebayer->src_frame) + return ERR_PTR(-EINVAL); + + for (i = 0; i < vdebayer->sink_fmt.height; i++) + for (j = 0; j < vdebayer->sink_fmt.width; j++) { + vimc_debayer_calc_rgb_sink(vdebayer, sink_frame, i, j, rgb); + vdebayer->set_rgb_src(vdebayer, i, j, rgb); + } + + return vdebayer->src_frame; +} + +static int vimc_debayer_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vimc_debayer_device *vdebayer = + container_of(ctrl->handler, struct vimc_debayer_device, hdl); + + switch (ctrl->id) { + case VIMC_CID_MEAN_WIN_SIZE: + vdebayer->mean_win_size = ctrl->val; + break; + default: + return -EINVAL; + } + return 0; +} + +static const struct v4l2_ctrl_ops vimc_debayer_ctrl_ops = { + .s_ctrl = vimc_debayer_s_ctrl, +}; + +static void vimc_debayer_release(struct vimc_ent_device *ved) +{ + struct vimc_debayer_device *vdebayer = + container_of(ved, struct vimc_debayer_device, ved); + + v4l2_ctrl_handler_free(&vdebayer->hdl); + media_entity_cleanup(vdebayer->ved.ent); + kfree(vdebayer); +} + +static const struct v4l2_ctrl_config vimc_debayer_ctrl_class = { + .flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY, + .id = VIMC_CID_VIMC_CLASS, + .name = "VIMC Controls", + .type = V4L2_CTRL_TYPE_CTRL_CLASS, +}; + +static const struct v4l2_ctrl_config vimc_debayer_ctrl_mean_win_size = { + .ops = &vimc_debayer_ctrl_ops, + .id = VIMC_CID_MEAN_WIN_SIZE, + .name = "Debayer Mean Window Size", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 1, + .max = 25, + .step = 2, + .def = 3, +}; + +static struct vimc_ent_device *vimc_debayer_add(struct vimc_device *vimc, + const char *vcfg_name) +{ + struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; + struct vimc_debayer_device *vdebayer; + int ret; + + /* Allocate the vdebayer struct */ + vdebayer = kzalloc(sizeof(*vdebayer), GFP_KERNEL); + if (!vdebayer) + return ERR_PTR(-ENOMEM); + + /* Create controls: */ + v4l2_ctrl_handler_init(&vdebayer->hdl, 2); + v4l2_ctrl_new_custom(&vdebayer->hdl, &vimc_debayer_ctrl_class, NULL); + v4l2_ctrl_new_custom(&vdebayer->hdl, &vimc_debayer_ctrl_mean_win_size, NULL); + vdebayer->sd.ctrl_handler = &vdebayer->hdl; + if (vdebayer->hdl.error) { + ret = vdebayer->hdl.error; + goto err_free_vdebayer; + } + + /* Initialize ved and sd */ + vdebayer->pads[0].flags = MEDIA_PAD_FL_SINK; + vdebayer->pads[1].flags = MEDIA_PAD_FL_SOURCE; + + ret = vimc_ent_sd_register(&vdebayer->ved, &vdebayer->sd, v4l2_dev, + vcfg_name, + MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV, 2, + vdebayer->pads, &vimc_debayer_ops); + if (ret) + goto err_free_hdl; + + vdebayer->ved.process_frame = vimc_debayer_process_frame; + vdebayer->ved.dev = vimc->mdev.dev; + vdebayer->mean_win_size = vimc_debayer_ctrl_mean_win_size.def; + + /* Initialize the frame format */ + vdebayer->sink_fmt = sink_fmt_default; + /* + * TODO: Add support for more output formats, we only support + * RGB888 for now + * NOTE: the src format is always the same as the sink, except + * for the code + */ + vdebayer->src_code = MEDIA_BUS_FMT_RGB888_1X24; + vdebayer->set_rgb_src = vimc_debayer_process_rgb_frame; + + return &vdebayer->ved; + +err_free_hdl: + v4l2_ctrl_handler_free(&vdebayer->hdl); +err_free_vdebayer: + kfree(vdebayer); + + return ERR_PTR(ret); +} + +struct vimc_ent_type vimc_debayer_type = { + .add = vimc_debayer_add, + .release = vimc_debayer_release +}; diff --git a/drivers/media/test-drivers/vimc/vimc-lens.c b/drivers/media/test-drivers/vimc/vimc-lens.c new file mode 100644 index 000000000..3ce7f4b4d --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-lens.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-lens.c Virtual Media Controller Driver + * Copyright (C) 2022 Google, Inc + * Author: yunkec@google.com (Yunke Cao) + */ + +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/v4l2-subdev.h> + +#include "vimc-common.h" + +#define VIMC_LENS_MAX_FOCUS_POS 1023 +#define VIMC_LENS_MAX_FOCUS_STEP 1 + +struct vimc_lens_device { + struct vimc_ent_device ved; + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; + u32 focus_absolute; +}; + +static const struct v4l2_subdev_core_ops vimc_lens_core_ops = { + .log_status = v4l2_ctrl_subdev_log_status, + .subscribe_event = v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, +}; + +static const struct v4l2_subdev_ops vimc_lens_ops = { + .core = &vimc_lens_core_ops +}; + +static int vimc_lens_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vimc_lens_device *vlens = + container_of(ctrl->handler, struct vimc_lens_device, hdl); + if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE) { + vlens->focus_absolute = ctrl->val; + return 0; + } + return -EINVAL; +} + +static const struct v4l2_ctrl_ops vimc_lens_ctrl_ops = { + .s_ctrl = vimc_lens_s_ctrl, +}; + +static struct vimc_ent_device *vimc_lens_add(struct vimc_device *vimc, + const char *vcfg_name) +{ + struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; + struct vimc_lens_device *vlens; + int ret; + + /* Allocate the vlens struct */ + vlens = kzalloc(sizeof(*vlens), GFP_KERNEL); + if (!vlens) + return ERR_PTR(-ENOMEM); + + v4l2_ctrl_handler_init(&vlens->hdl, 1); + + v4l2_ctrl_new_std(&vlens->hdl, &vimc_lens_ctrl_ops, + V4L2_CID_FOCUS_ABSOLUTE, 0, + VIMC_LENS_MAX_FOCUS_POS, VIMC_LENS_MAX_FOCUS_STEP, 0); + vlens->sd.ctrl_handler = &vlens->hdl; + if (vlens->hdl.error) { + ret = vlens->hdl.error; + goto err_free_vlens; + } + vlens->ved.dev = vimc->mdev.dev; + + ret = vimc_ent_sd_register(&vlens->ved, &vlens->sd, v4l2_dev, + vcfg_name, MEDIA_ENT_F_LENS, 0, + NULL, &vimc_lens_ops); + if (ret) + goto err_free_hdl; + + return &vlens->ved; + +err_free_hdl: + v4l2_ctrl_handler_free(&vlens->hdl); +err_free_vlens: + kfree(vlens); + + return ERR_PTR(ret); +} + +static void vimc_lens_release(struct vimc_ent_device *ved) +{ + struct vimc_lens_device *vlens = + container_of(ved, struct vimc_lens_device, ved); + + v4l2_ctrl_handler_free(&vlens->hdl); + media_entity_cleanup(vlens->ved.ent); + kfree(vlens); +} + +struct vimc_ent_type vimc_lens_type = { + .add = vimc_lens_add, + .release = vimc_lens_release +}; diff --git a/drivers/media/test-drivers/vimc/vimc-scaler.c b/drivers/media/test-drivers/vimc/vimc-scaler.c new file mode 100644 index 000000000..b671774e2 --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-scaler.c @@ -0,0 +1,444 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-scaler.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <linux/moduleparam.h> +#include <linux/string.h> +#include <linux/vmalloc.h> +#include <linux/v4l2-mediabus.h> +#include <media/v4l2-rect.h> +#include <media/v4l2-subdev.h> + +#include "vimc-common.h" + +/* Pad identifier */ +enum vic_sca_pad { + VIMC_SCALER_SINK = 0, + VIMC_SCALER_SRC = 1, +}; + +#define VIMC_SCALER_FMT_WIDTH_DEFAULT 640 +#define VIMC_SCALER_FMT_HEIGHT_DEFAULT 480 + +struct vimc_scaler_device { + struct vimc_ent_device ved; + struct v4l2_subdev sd; + struct v4l2_rect crop_rect; + /* Frame format for both sink and src pad */ + struct v4l2_mbus_framefmt fmt[2]; + /* Values calculated when the stream starts */ + u8 *src_frame; + unsigned int bpp; + struct media_pad pads[2]; +}; + +static const struct v4l2_mbus_framefmt fmt_default = { + .width = VIMC_SCALER_FMT_WIDTH_DEFAULT, + .height = VIMC_SCALER_FMT_HEIGHT_DEFAULT, + .code = MEDIA_BUS_FMT_RGB888_1X24, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, +}; + +static const struct v4l2_rect crop_rect_default = { + .width = VIMC_SCALER_FMT_WIDTH_DEFAULT, + .height = VIMC_SCALER_FMT_HEIGHT_DEFAULT, + .top = 0, + .left = 0, +}; + +static const struct v4l2_rect crop_rect_min = { + .width = VIMC_FRAME_MIN_WIDTH, + .height = VIMC_FRAME_MIN_HEIGHT, + .top = 0, + .left = 0, +}; + +static struct v4l2_rect +vimc_scaler_get_crop_bound_sink(const struct v4l2_mbus_framefmt *sink_fmt) +{ + /* Get the crop bounds to clamp the crop rectangle correctly */ + struct v4l2_rect r = { + .left = 0, + .top = 0, + .width = sink_fmt->width, + .height = sink_fmt->height, + }; + return r; +} + +static int vimc_scaler_init_cfg(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state) +{ + struct v4l2_mbus_framefmt *mf; + struct v4l2_rect *r; + unsigned int i; + + for (i = 0; i < sd->entity.num_pads; i++) { + mf = v4l2_subdev_get_try_format(sd, sd_state, i); + *mf = fmt_default; + } + + r = v4l2_subdev_get_try_crop(sd, sd_state, VIMC_SCALER_SINK); + *r = crop_rect_default; + + return 0; +} + +static int vimc_scaler_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + u32 mbus_code = vimc_mbus_code_by_index(code->index); + const struct vimc_pix_map *vpix; + + if (!mbus_code) + return -EINVAL; + + vpix = vimc_pix_map_by_code(mbus_code); + + /* We don't support bayer format */ + if (!vpix || vpix->bayer) + return -EINVAL; + + code->code = mbus_code; + + return 0; +} + +static int vimc_scaler_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + const struct vimc_pix_map *vpix; + + if (fse->index) + return -EINVAL; + + /* Only accept code in the pix map table in non bayer format */ + vpix = vimc_pix_map_by_code(fse->code); + if (!vpix || vpix->bayer) + return -EINVAL; + + fse->min_width = VIMC_FRAME_MIN_WIDTH; + fse->min_height = VIMC_FRAME_MIN_HEIGHT; + + fse->max_width = VIMC_FRAME_MAX_WIDTH; + fse->max_height = VIMC_FRAME_MAX_HEIGHT; + + return 0; +} + +static struct v4l2_mbus_framefmt * +vimc_scaler_pad_format(struct vimc_scaler_device *vscaler, + struct v4l2_subdev_state *sd_state, u32 pad, + enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(&vscaler->sd, sd_state, pad); + else + return &vscaler->fmt[pad]; +} + +static struct v4l2_rect * +vimc_scaler_pad_crop(struct vimc_scaler_device *vscaler, + struct v4l2_subdev_state *sd_state, + enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_crop(&vscaler->sd, sd_state, + VIMC_SCALER_SINK); + else + return &vscaler->crop_rect; +} + +static int vimc_scaler_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *format) +{ + struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd); + + format->format = *vimc_scaler_pad_format(vscaler, sd_state, format->pad, + format->which); + return 0; +} + +static int vimc_scaler_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *format) +{ + struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *fmt; + + /* Do not change the active format while stream is on */ + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE && vscaler->src_frame) + return -EBUSY; + + fmt = vimc_scaler_pad_format(vscaler, sd_state, format->pad, format->which); + + /* + * The media bus code and colorspace can only be changed on the sink + * pad, the source pad only follows. + */ + if (format->pad == VIMC_SCALER_SINK) { + const struct vimc_pix_map *vpix; + + /* Only accept code in the pix map table in non bayer format. */ + vpix = vimc_pix_map_by_code(format->format.code); + if (vpix && !vpix->bayer) + fmt->code = format->format.code; + else + fmt->code = fmt_default.code; + + /* Clamp the colorspace to valid values. */ + fmt->colorspace = format->format.colorspace; + fmt->ycbcr_enc = format->format.ycbcr_enc; + fmt->quantization = format->format.quantization; + fmt->xfer_func = format->format.xfer_func; + vimc_colorimetry_clamp(fmt); + } + + /* Clamp and align the width and height */ + fmt->width = clamp_t(u32, format->format.width, VIMC_FRAME_MIN_WIDTH, + VIMC_FRAME_MAX_WIDTH) & ~1; + fmt->height = clamp_t(u32, format->format.height, VIMC_FRAME_MIN_HEIGHT, + VIMC_FRAME_MAX_HEIGHT) & ~1; + + /* + * Propagate the sink pad format to the crop rectangle and the source + * pad. + */ + if (format->pad == VIMC_SCALER_SINK) { + struct v4l2_mbus_framefmt *src_fmt; + struct v4l2_rect *crop; + + crop = vimc_scaler_pad_crop(vscaler, sd_state, format->which); + crop->width = fmt->width; + crop->height = fmt->height; + crop->top = 0; + crop->left = 0; + + src_fmt = vimc_scaler_pad_format(vscaler, sd_state, VIMC_SCALER_SRC, + format->which); + *src_fmt = *fmt; + } + + format->format = *fmt; + + return 0; +} + +static int vimc_scaler_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_selection *sel) +{ + struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *sink_fmt; + + if (VIMC_IS_SRC(sel->pad)) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + sel->r = *vimc_scaler_pad_crop(vscaler, sd_state, sel->which); + break; + case V4L2_SEL_TGT_CROP_BOUNDS: + sink_fmt = vimc_scaler_pad_format(vscaler, sd_state, VIMC_SCALER_SINK, + sel->which); + sel->r = vimc_scaler_get_crop_bound_sink(sink_fmt); + break; + default: + return -EINVAL; + } + + return 0; +} + +static void vimc_scaler_adjust_sink_crop(struct v4l2_rect *r, + const struct v4l2_mbus_framefmt *sink_fmt) +{ + const struct v4l2_rect sink_rect = + vimc_scaler_get_crop_bound_sink(sink_fmt); + + /* Disallow rectangles smaller than the minimal one. */ + v4l2_rect_set_min_size(r, &crop_rect_min); + v4l2_rect_map_inside(r, &sink_rect); +} + +static int vimc_scaler_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_selection *sel) +{ + struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *sink_fmt; + struct v4l2_rect *crop_rect; + + /* Only support setting the crop of the sink pad */ + if (VIMC_IS_SRC(sel->pad) || sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && vscaler->src_frame) + return -EBUSY; + + crop_rect = vimc_scaler_pad_crop(vscaler, sd_state, sel->which); + sink_fmt = vimc_scaler_pad_format(vscaler, sd_state, VIMC_SCALER_SINK, + sel->which); + vimc_scaler_adjust_sink_crop(&sel->r, sink_fmt); + *crop_rect = sel->r; + + return 0; +} + +static const struct v4l2_subdev_pad_ops vimc_scaler_pad_ops = { + .init_cfg = vimc_scaler_init_cfg, + .enum_mbus_code = vimc_scaler_enum_mbus_code, + .enum_frame_size = vimc_scaler_enum_frame_size, + .get_fmt = vimc_scaler_get_fmt, + .set_fmt = vimc_scaler_set_fmt, + .get_selection = vimc_scaler_get_selection, + .set_selection = vimc_scaler_set_selection, +}; + +static int vimc_scaler_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct vimc_scaler_device *vscaler = v4l2_get_subdevdata(sd); + + if (enable) { + const struct vimc_pix_map *vpix; + unsigned int frame_size; + + if (vscaler->src_frame) + return 0; + + /* Save the bytes per pixel of the sink */ + vpix = vimc_pix_map_by_code(vscaler->fmt[VIMC_SCALER_SINK].code); + vscaler->bpp = vpix->bpp; + + /* Calculate the frame size of the source pad */ + frame_size = vscaler->fmt[VIMC_SCALER_SRC].width + * vscaler->fmt[VIMC_SCALER_SRC].height * vscaler->bpp; + + /* Allocate the frame buffer. Use vmalloc to be able to + * allocate a large amount of memory + */ + vscaler->src_frame = vmalloc(frame_size); + if (!vscaler->src_frame) + return -ENOMEM; + + } else { + if (!vscaler->src_frame) + return 0; + + vfree(vscaler->src_frame); + vscaler->src_frame = NULL; + } + + return 0; +} + +static const struct v4l2_subdev_video_ops vimc_scaler_video_ops = { + .s_stream = vimc_scaler_s_stream, +}; + +static const struct v4l2_subdev_ops vimc_scaler_ops = { + .pad = &vimc_scaler_pad_ops, + .video = &vimc_scaler_video_ops, +}; + +static void vimc_scaler_fill_src_frame(const struct vimc_scaler_device *const vscaler, + const u8 *const sink_frame) +{ + const struct v4l2_mbus_framefmt *src_fmt = &vscaler->fmt[VIMC_SCALER_SRC]; + const struct v4l2_rect *r = &vscaler->crop_rect; + unsigned int snk_width = vscaler->fmt[VIMC_SCALER_SINK].width; + unsigned int src_x, src_y; + u8 *walker = vscaler->src_frame; + + /* Set each pixel at the src_frame to its sink_frame equivalent */ + for (src_y = 0; src_y < src_fmt->height; src_y++) { + unsigned int snk_y, y_offset; + + snk_y = (src_y * r->height) / src_fmt->height + r->top; + y_offset = snk_y * snk_width * vscaler->bpp; + + for (src_x = 0; src_x < src_fmt->width; src_x++) { + unsigned int snk_x, x_offset, index; + + snk_x = (src_x * r->width) / src_fmt->width + r->left; + x_offset = snk_x * vscaler->bpp; + index = y_offset + x_offset; + memcpy(walker, &sink_frame[index], vscaler->bpp); + walker += vscaler->bpp; + } + } +} + +static void *vimc_scaler_process_frame(struct vimc_ent_device *ved, + const void *sink_frame) +{ + struct vimc_scaler_device *vscaler = container_of(ved, struct vimc_scaler_device, + ved); + + /* If the stream in this node is not active, just return */ + if (!vscaler->src_frame) + return ERR_PTR(-EINVAL); + + vimc_scaler_fill_src_frame(vscaler, sink_frame); + + return vscaler->src_frame; +}; + +static void vimc_scaler_release(struct vimc_ent_device *ved) +{ + struct vimc_scaler_device *vscaler = + container_of(ved, struct vimc_scaler_device, ved); + + media_entity_cleanup(vscaler->ved.ent); + kfree(vscaler); +} + +static struct vimc_ent_device *vimc_scaler_add(struct vimc_device *vimc, + const char *vcfg_name) +{ + struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; + struct vimc_scaler_device *vscaler; + int ret; + + /* Allocate the vscaler struct */ + vscaler = kzalloc(sizeof(*vscaler), GFP_KERNEL); + if (!vscaler) + return ERR_PTR(-ENOMEM); + + /* Initialize ved and sd */ + vscaler->pads[VIMC_SCALER_SINK].flags = MEDIA_PAD_FL_SINK; + vscaler->pads[VIMC_SCALER_SRC].flags = MEDIA_PAD_FL_SOURCE; + + ret = vimc_ent_sd_register(&vscaler->ved, &vscaler->sd, v4l2_dev, + vcfg_name, + MEDIA_ENT_F_PROC_VIDEO_SCALER, 2, + vscaler->pads, &vimc_scaler_ops); + if (ret) { + kfree(vscaler); + return ERR_PTR(ret); + } + + vscaler->ved.process_frame = vimc_scaler_process_frame; + vscaler->ved.dev = vimc->mdev.dev; + + /* Initialize the frame format */ + vscaler->fmt[VIMC_SCALER_SINK] = fmt_default; + vscaler->fmt[VIMC_SCALER_SRC] = fmt_default; + + /* Initialize the crop selection */ + vscaler->crop_rect = crop_rect_default; + + return &vscaler->ved; +} + +struct vimc_ent_type vimc_scaler_type = { + .add = vimc_scaler_add, + .release = vimc_scaler_release +}; diff --git a/drivers/media/test-drivers/vimc/vimc-sensor.c b/drivers/media/test-drivers/vimc/vimc-sensor.c new file mode 100644 index 000000000..41a3dce2d --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-sensor.c @@ -0,0 +1,453 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * vimc-sensor.c Virtual Media Controller Driver + * + * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> + */ + +#include <linux/v4l2-mediabus.h> +#include <linux/vmalloc.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/v4l2-subdev.h> +#include <media/tpg/v4l2-tpg.h> + +#include "vimc-common.h" + +enum vimc_sensor_osd_mode { + VIMC_SENSOR_OSD_SHOW_ALL = 0, + VIMC_SENSOR_OSD_SHOW_COUNTERS = 1, + VIMC_SENSOR_OSD_SHOW_NONE = 2 +}; + +struct vimc_sensor_device { + struct vimc_ent_device ved; + struct v4l2_subdev sd; + struct tpg_data tpg; + u8 *frame; + enum vimc_sensor_osd_mode osd_value; + u64 start_stream_ts; + /* The active format */ + struct v4l2_mbus_framefmt mbus_format; + struct v4l2_ctrl_handler hdl; + struct media_pad pad; +}; + +static const struct v4l2_mbus_framefmt fmt_default = { + .width = 640, + .height = 480, + .code = MEDIA_BUS_FMT_RGB888_1X24, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, +}; + +static int vimc_sensor_init_cfg(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state) +{ + unsigned int i; + + for (i = 0; i < sd->entity.num_pads; i++) { + struct v4l2_mbus_framefmt *mf; + + mf = v4l2_subdev_get_try_format(sd, sd_state, i); + *mf = fmt_default; + } + + return 0; +} + +static int vimc_sensor_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + u32 mbus_code = vimc_mbus_code_by_index(code->index); + + if (!mbus_code) + return -EINVAL; + + code->code = mbus_code; + + return 0; +} + +static int vimc_sensor_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + const struct vimc_pix_map *vpix; + + if (fse->index) + return -EINVAL; + + /* Only accept code in the pix map table */ + vpix = vimc_pix_map_by_code(fse->code); + if (!vpix) + return -EINVAL; + + fse->min_width = VIMC_FRAME_MIN_WIDTH; + fse->max_width = VIMC_FRAME_MAX_WIDTH; + fse->min_height = VIMC_FRAME_MIN_HEIGHT; + fse->max_height = VIMC_FRAME_MAX_HEIGHT; + + return 0; +} + +static int vimc_sensor_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct vimc_sensor_device *vsensor = + container_of(sd, struct vimc_sensor_device, sd); + + fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ? + *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) : + vsensor->mbus_format; + + return 0; +} + +static void vimc_sensor_tpg_s_format(struct vimc_sensor_device *vsensor) +{ + const struct vimc_pix_map *vpix = + vimc_pix_map_by_code(vsensor->mbus_format.code); + + tpg_reset_source(&vsensor->tpg, vsensor->mbus_format.width, + vsensor->mbus_format.height, vsensor->mbus_format.field); + tpg_s_bytesperline(&vsensor->tpg, 0, vsensor->mbus_format.width * vpix->bpp); + tpg_s_buf_height(&vsensor->tpg, vsensor->mbus_format.height); + tpg_s_fourcc(&vsensor->tpg, vpix->pixelformat); + /* TODO: add support for V4L2_FIELD_ALTERNATE */ + tpg_s_field(&vsensor->tpg, vsensor->mbus_format.field, false); + tpg_s_colorspace(&vsensor->tpg, vsensor->mbus_format.colorspace); + tpg_s_ycbcr_enc(&vsensor->tpg, vsensor->mbus_format.ycbcr_enc); + tpg_s_quantization(&vsensor->tpg, vsensor->mbus_format.quantization); + tpg_s_xfer_func(&vsensor->tpg, vsensor->mbus_format.xfer_func); +} + +static void vimc_sensor_adjust_fmt(struct v4l2_mbus_framefmt *fmt) +{ + const struct vimc_pix_map *vpix; + + /* Only accept code in the pix map table */ + vpix = vimc_pix_map_by_code(fmt->code); + if (!vpix) + fmt->code = fmt_default.code; + + fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH, + VIMC_FRAME_MAX_WIDTH) & ~1; + fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT, + VIMC_FRAME_MAX_HEIGHT) & ~1; + + /* TODO: add support for V4L2_FIELD_ALTERNATE */ + if (fmt->field == V4L2_FIELD_ANY || fmt->field == V4L2_FIELD_ALTERNATE) + fmt->field = fmt_default.field; + + vimc_colorimetry_clamp(fmt); +} + +static int vimc_sensor_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct vimc_sensor_device *vsensor = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *mf; + + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + /* Do not change the format while stream is on */ + if (vsensor->frame) + return -EBUSY; + + mf = &vsensor->mbus_format; + } else { + mf = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); + } + + /* Set the new format */ + vimc_sensor_adjust_fmt(&fmt->format); + + dev_dbg(vsensor->ved.dev, "%s: format update: " + "old:%dx%d (0x%x, %d, %d, %d, %d) " + "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsensor->sd.name, + /* old */ + mf->width, mf->height, mf->code, + mf->colorspace, mf->quantization, + mf->xfer_func, mf->ycbcr_enc, + /* new */ + fmt->format.width, fmt->format.height, fmt->format.code, + fmt->format.colorspace, fmt->format.quantization, + fmt->format.xfer_func, fmt->format.ycbcr_enc); + + *mf = fmt->format; + + return 0; +} + +static const struct v4l2_subdev_pad_ops vimc_sensor_pad_ops = { + .init_cfg = vimc_sensor_init_cfg, + .enum_mbus_code = vimc_sensor_enum_mbus_code, + .enum_frame_size = vimc_sensor_enum_frame_size, + .get_fmt = vimc_sensor_get_fmt, + .set_fmt = vimc_sensor_set_fmt, +}; + +static void *vimc_sensor_process_frame(struct vimc_ent_device *ved, + const void *sink_frame) +{ + struct vimc_sensor_device *vsensor = + container_of(ved, struct vimc_sensor_device, ved); + + const unsigned int line_height = 16; + u8 *basep[TPG_MAX_PLANES][2]; + unsigned int line = 1; + char str[100]; + + tpg_fill_plane_buffer(&vsensor->tpg, 0, 0, vsensor->frame); + tpg_calc_text_basep(&vsensor->tpg, basep, 0, vsensor->frame); + switch (vsensor->osd_value) { + case VIMC_SENSOR_OSD_SHOW_ALL: { + const char *order = tpg_g_color_order(&vsensor->tpg); + + tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, + 16, order); + snprintf(str, sizeof(str), + "brightness %3d, contrast %3d, saturation %3d, hue %d ", + vsensor->tpg.brightness, + vsensor->tpg.contrast, + vsensor->tpg.saturation, + vsensor->tpg.hue); + tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str); + snprintf(str, sizeof(str), "sensor size: %dx%d", + vsensor->mbus_format.width, + vsensor->mbus_format.height); + tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str); + fallthrough; + } + case VIMC_SENSOR_OSD_SHOW_COUNTERS: { + unsigned int ms; + + ms = div_u64(ktime_get_ns() - vsensor->start_stream_ts, 1000000); + snprintf(str, sizeof(str), "%02d:%02d:%02d:%03d", + (ms / (60 * 60 * 1000)) % 24, + (ms / (60 * 1000)) % 60, + (ms / 1000) % 60, + ms % 1000); + tpg_gen_text(&vsensor->tpg, basep, line++ * line_height, 16, str); + break; + } + case VIMC_SENSOR_OSD_SHOW_NONE: + default: + break; + } + + return vsensor->frame; +} + +static int vimc_sensor_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct vimc_sensor_device *vsensor = + container_of(sd, struct vimc_sensor_device, sd); + + if (enable) { + const struct vimc_pix_map *vpix; + unsigned int frame_size; + + vsensor->start_stream_ts = ktime_get_ns(); + + /* Calculate the frame size */ + vpix = vimc_pix_map_by_code(vsensor->mbus_format.code); + frame_size = vsensor->mbus_format.width * vpix->bpp * + vsensor->mbus_format.height; + + /* + * Allocate the frame buffer. Use vmalloc to be able to + * allocate a large amount of memory + */ + vsensor->frame = vmalloc(frame_size); + if (!vsensor->frame) + return -ENOMEM; + + /* configure the test pattern generator */ + vimc_sensor_tpg_s_format(vsensor); + + } else { + + vfree(vsensor->frame); + vsensor->frame = NULL; + } + + return 0; +} + +static const struct v4l2_subdev_core_ops vimc_sensor_core_ops = { + .log_status = v4l2_ctrl_subdev_log_status, + .subscribe_event = v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, +}; + +static const struct v4l2_subdev_video_ops vimc_sensor_video_ops = { + .s_stream = vimc_sensor_s_stream, +}; + +static const struct v4l2_subdev_ops vimc_sensor_ops = { + .core = &vimc_sensor_core_ops, + .pad = &vimc_sensor_pad_ops, + .video = &vimc_sensor_video_ops, +}; + +static int vimc_sensor_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vimc_sensor_device *vsensor = + container_of(ctrl->handler, struct vimc_sensor_device, hdl); + + switch (ctrl->id) { + case VIMC_CID_TEST_PATTERN: + tpg_s_pattern(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_HFLIP: + tpg_s_hflip(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_VFLIP: + tpg_s_vflip(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_BRIGHTNESS: + tpg_s_brightness(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_CONTRAST: + tpg_s_contrast(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_HUE: + tpg_s_hue(&vsensor->tpg, ctrl->val); + break; + case V4L2_CID_SATURATION: + tpg_s_saturation(&vsensor->tpg, ctrl->val); + break; + case VIMC_CID_OSD_TEXT_MODE: + vsensor->osd_value = ctrl->val; + break; + default: + return -EINVAL; + } + return 0; +} + +static const struct v4l2_ctrl_ops vimc_sensor_ctrl_ops = { + .s_ctrl = vimc_sensor_s_ctrl, +}; + +static void vimc_sensor_release(struct vimc_ent_device *ved) +{ + struct vimc_sensor_device *vsensor = + container_of(ved, struct vimc_sensor_device, ved); + + v4l2_ctrl_handler_free(&vsensor->hdl); + tpg_free(&vsensor->tpg); + media_entity_cleanup(vsensor->ved.ent); + kfree(vsensor); +} + +/* Image Processing Controls */ +static const struct v4l2_ctrl_config vimc_sensor_ctrl_class = { + .flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY, + .id = VIMC_CID_VIMC_CLASS, + .name = "VIMC Controls", + .type = V4L2_CTRL_TYPE_CTRL_CLASS, +}; + +static const struct v4l2_ctrl_config vimc_sensor_ctrl_test_pattern = { + .ops = &vimc_sensor_ctrl_ops, + .id = VIMC_CID_TEST_PATTERN, + .name = "Test Pattern", + .type = V4L2_CTRL_TYPE_MENU, + .max = TPG_PAT_NOISE, + .qmenu = tpg_pattern_strings, +}; + +static const char * const vimc_ctrl_osd_mode_strings[] = { + "All", + "Counters Only", + "None", + NULL, +}; + +static const struct v4l2_ctrl_config vimc_sensor_ctrl_osd_mode = { + .ops = &vimc_sensor_ctrl_ops, + .id = VIMC_CID_OSD_TEXT_MODE, + .name = "Show Information", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vimc_ctrl_osd_mode_strings) - 2, + .qmenu = vimc_ctrl_osd_mode_strings, +}; + +static struct vimc_ent_device *vimc_sensor_add(struct vimc_device *vimc, + const char *vcfg_name) +{ + struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; + struct vimc_sensor_device *vsensor; + int ret; + + /* Allocate the vsensor struct */ + vsensor = kzalloc(sizeof(*vsensor), GFP_KERNEL); + if (!vsensor) + return ERR_PTR(-ENOMEM); + + v4l2_ctrl_handler_init(&vsensor->hdl, 4); + + v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_class, NULL); + v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_test_pattern, NULL); + v4l2_ctrl_new_custom(&vsensor->hdl, &vimc_sensor_ctrl_osd_mode, NULL); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 128); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_HUE, -128, 127, 1, 0); + v4l2_ctrl_new_std(&vsensor->hdl, &vimc_sensor_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 128); + vsensor->sd.ctrl_handler = &vsensor->hdl; + if (vsensor->hdl.error) { + ret = vsensor->hdl.error; + goto err_free_vsensor; + } + + /* Initialize the test pattern generator */ + tpg_init(&vsensor->tpg, vsensor->mbus_format.width, + vsensor->mbus_format.height); + ret = tpg_alloc(&vsensor->tpg, VIMC_FRAME_MAX_WIDTH); + if (ret) + goto err_free_hdl; + + /* Initialize ved and sd */ + vsensor->pad.flags = MEDIA_PAD_FL_SOURCE; + ret = vimc_ent_sd_register(&vsensor->ved, &vsensor->sd, v4l2_dev, + vcfg_name, + MEDIA_ENT_F_CAM_SENSOR, 1, &vsensor->pad, + &vimc_sensor_ops); + if (ret) + goto err_free_tpg; + + vsensor->ved.process_frame = vimc_sensor_process_frame; + vsensor->ved.dev = vimc->mdev.dev; + + /* Initialize the frame format */ + vsensor->mbus_format = fmt_default; + + return &vsensor->ved; + +err_free_tpg: + tpg_free(&vsensor->tpg); +err_free_hdl: + v4l2_ctrl_handler_free(&vsensor->hdl); +err_free_vsensor: + kfree(vsensor); + + return ERR_PTR(ret); +} + +struct vimc_ent_type vimc_sensor_type = { + .add = vimc_sensor_add, + .release = vimc_sensor_release +}; diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.c b/drivers/media/test-drivers/vimc/vimc-streamer.c new file mode 100644 index 000000000..807551a51 --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-streamer.c @@ -0,0 +1,238 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * vimc-streamer.c Virtual Media Controller Driver + * + * Copyright (C) 2018 Lucas A. M. Magalhães <lucmaga@gmail.com> + * + */ + +#include <linux/init.h> +#include <linux/freezer.h> +#include <linux/kthread.h> + +#include "vimc-streamer.h" + +/** + * vimc_get_source_entity - get the entity connected with the first sink pad + * + * @ent: reference media_entity + * + * Helper function that returns the media entity containing the source pad + * linked with the first sink pad from the given media entity pad list. + * + * Return: The source pad or NULL, if it wasn't found. + */ +static struct media_entity *vimc_get_source_entity(struct media_entity *ent) +{ + struct media_pad *pad; + int i; + + for (i = 0; i < ent->num_pads; i++) { + if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE) + continue; + pad = media_pad_remote_pad_first(&ent->pads[i]); + return pad ? pad->entity : NULL; + } + return NULL; +} + +/** + * vimc_streamer_pipeline_terminate - Disable stream in all ved in stream + * + * @stream: the pointer to the stream structure with the pipeline to be + * disabled. + * + * Calls s_stream to disable the stream in each entity of the pipeline + * + */ +static void vimc_streamer_pipeline_terminate(struct vimc_stream *stream) +{ + struct vimc_ent_device *ved; + struct v4l2_subdev *sd; + + while (stream->pipe_size) { + stream->pipe_size--; + ved = stream->ved_pipeline[stream->pipe_size]; + stream->ved_pipeline[stream->pipe_size] = NULL; + + if (!is_media_entity_v4l2_subdev(ved->ent)) + continue; + + sd = media_entity_to_v4l2_subdev(ved->ent); + v4l2_subdev_call(sd, video, s_stream, 0); + } +} + +/** + * vimc_streamer_pipeline_init - Initializes the stream structure + * + * @stream: the pointer to the stream structure to be initialized + * @ved: the pointer to the vimc entity initializing the stream + * + * Initializes the stream structure. Walks through the entity graph to + * construct the pipeline used later on the streamer thread. + * Calls vimc_streamer_s_stream() to enable stream in all entities of + * the pipeline. + * + * Return: 0 if success, error code otherwise. + */ +static int vimc_streamer_pipeline_init(struct vimc_stream *stream, + struct vimc_ent_device *ved) +{ + struct media_entity *entity; + struct video_device *vdev; + struct v4l2_subdev *sd; + int ret = 0; + + stream->pipe_size = 0; + while (stream->pipe_size < VIMC_STREAMER_PIPELINE_MAX_SIZE) { + if (!ved) { + vimc_streamer_pipeline_terminate(stream); + return -EINVAL; + } + stream->ved_pipeline[stream->pipe_size++] = ved; + + if (is_media_entity_v4l2_subdev(ved->ent)) { + sd = media_entity_to_v4l2_subdev(ved->ent); + ret = v4l2_subdev_call(sd, video, s_stream, 1); + if (ret && ret != -ENOIOCTLCMD) { + dev_err(ved->dev, "subdev_call error %s\n", + ved->ent->name); + vimc_streamer_pipeline_terminate(stream); + return ret; + } + } + + entity = vimc_get_source_entity(ved->ent); + /* Check if the end of the pipeline was reached */ + if (!entity) { + /* the first entity of the pipe should be source only */ + if (!vimc_is_source(ved->ent)) { + dev_err(ved->dev, + "first entity in the pipe '%s' is not a source\n", + ved->ent->name); + vimc_streamer_pipeline_terminate(stream); + return -EPIPE; + } + return 0; + } + + /* Get the next device in the pipeline */ + if (is_media_entity_v4l2_subdev(entity)) { + sd = media_entity_to_v4l2_subdev(entity); + ved = v4l2_get_subdevdata(sd); + } else { + vdev = container_of(entity, + struct video_device, + entity); + ved = video_get_drvdata(vdev); + } + } + + vimc_streamer_pipeline_terminate(stream); + return -EINVAL; +} + +/** + * vimc_streamer_thread - Process frames through the pipeline + * + * @data: vimc_stream struct of the current stream + * + * From the source to the sink, gets a frame from each subdevice and send to + * the next one of the pipeline at a fixed framerate. + * + * Return: + * Always zero (created as ``int`` instead of ``void`` to comply with + * kthread API). + */ +static int vimc_streamer_thread(void *data) +{ + struct vimc_stream *stream = data; + u8 *frame = NULL; + int i; + + set_freezable(); + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + for (i = stream->pipe_size - 1; i >= 0; i--) { + frame = stream->ved_pipeline[i]->process_frame( + stream->ved_pipeline[i], frame); + if (!frame || IS_ERR(frame)) + break; + } + //wait for 60hz + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(HZ / 60); + } + + return 0; +} + +/** + * vimc_streamer_s_stream - Start/stop the streaming on the media pipeline + * + * @stream: the pointer to the stream structure of the current stream + * @ved: pointer to the vimc entity of the entity of the stream + * @enable: flag to determine if stream should start/stop + * + * When starting, check if there is no ``stream->kthread`` allocated. This + * should indicate that a stream is already running. Then, it initializes the + * pipeline, creates and runs a kthread to consume buffers through the pipeline. + * When stopping, analogously check if there is a stream running, stop the + * thread and terminates the pipeline. + * + * Return: 0 if success, error code otherwise. + */ +int vimc_streamer_s_stream(struct vimc_stream *stream, + struct vimc_ent_device *ved, + int enable) +{ + int ret; + + if (!stream || !ved) + return -EINVAL; + + if (enable) { + if (stream->kthread) + return 0; + + ret = vimc_streamer_pipeline_init(stream, ved); + if (ret) + return ret; + + stream->kthread = kthread_run(vimc_streamer_thread, stream, + "vimc-streamer thread"); + + if (IS_ERR(stream->kthread)) { + ret = PTR_ERR(stream->kthread); + dev_err(ved->dev, "kthread_run failed with %d\n", ret); + vimc_streamer_pipeline_terminate(stream); + stream->kthread = NULL; + return ret; + } + + } else { + if (!stream->kthread) + return 0; + + ret = kthread_stop(stream->kthread); + /* + * kthread_stop returns -EINTR in cases when streamon was + * immediately followed by streamoff, and the thread didn't had + * a chance to run. Ignore errors to stop the stream in the + * pipeline. + */ + if (ret) + dev_dbg(ved->dev, "kthread_stop returned '%d'\n", ret); + + stream->kthread = NULL; + + vimc_streamer_pipeline_terminate(stream); + } + + return 0; +} diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.h b/drivers/media/test-drivers/vimc/vimc-streamer.h new file mode 100644 index 000000000..3bb6731b8 --- /dev/null +++ b/drivers/media/test-drivers/vimc/vimc-streamer.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * vimc-streamer.h Virtual Media Controller Driver + * + * Copyright (C) 2018 Lucas A. M. Magalhães <lucmaga@gmail.com> + * + */ + +#ifndef _VIMC_STREAMER_H_ +#define _VIMC_STREAMER_H_ + +#include <media/media-device.h> + +#include "vimc-common.h" + +#define VIMC_STREAMER_PIPELINE_MAX_SIZE 16 + +/** + * struct vimc_stream - struct that represents a stream in the pipeline + * + * @pipe: the media pipeline object associated with this stream + * @ved_pipeline: array containing all the entities participating in the + * stream. The order is from a video device (usually a + * capture device) where stream_on was called, to the + * entity generating the first base image to be + * processed in the pipeline. + * @pipe_size: size of @ved_pipeline + * @kthread: thread that generates the frames of the stream. + * + * When the user call stream_on in a video device, struct vimc_stream is + * used to keep track of all entities and subdevices that generates and + * process frames for the stream. + */ +struct vimc_stream { + struct media_pipeline pipe; + struct vimc_ent_device *ved_pipeline[VIMC_STREAMER_PIPELINE_MAX_SIZE]; + unsigned int pipe_size; + struct task_struct *kthread; +}; + +int vimc_streamer_s_stream(struct vimc_stream *stream, + struct vimc_ent_device *ved, + int enable); + +#endif //_VIMC_STREAMER_H_ diff --git a/drivers/media/test-drivers/vivid/Kconfig b/drivers/media/test-drivers/vivid/Kconfig new file mode 100644 index 000000000..318799d31 --- /dev/null +++ b/drivers/media/test-drivers/vivid/Kconfig @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIDEO_VIVID + tristate "Virtual Video Test Driver" + depends on VIDEO_DEV && !SPARC32 && !SPARC64 && FB + depends on HAS_DMA + select FONT_SUPPORT + select FONT_8x16 + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + select VIDEOBUF2_VMALLOC + select VIDEOBUF2_DMA_CONTIG + select VIDEO_V4L2_TPG + select MEDIA_CONTROLLER + select MEDIA_CONTROLLER_REQUEST_API + help + Enables a virtual video driver. This driver emulates a webcam, + TV, S-Video and HDMI capture hardware, including VBI support for + the SDTV inputs. Also video output, VBI output, radio receivers, + transmitters and software defined radio capture is emulated. + + It is highly configurable and is ideal for testing applications. + Error injection is supported to test rare errors that are hard + to reproduce in real hardware. + + Say Y here if you want to test video apps or debug V4L devices. + When in doubt, say N. + +config VIDEO_VIVID_CEC + bool "Enable CEC emulation support" + depends on VIDEO_VIVID + select CEC_CORE + help + When selected the vivid module will emulate the optional + HDMI CEC feature. + +config VIDEO_VIVID_MAX_DEVS + int "Maximum number of devices" + depends on VIDEO_VIVID + default "64" + help + This allows you to specify the maximum number of devices supported + by the vivid driver. diff --git a/drivers/media/test-drivers/vivid/Makefile b/drivers/media/test-drivers/vivid/Makefile new file mode 100644 index 000000000..b12ad0152 --- /dev/null +++ b/drivers/media/test-drivers/vivid/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \ + vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.o \ + vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \ + vivid-rds-gen.o vivid-sdr-cap.o vivid-vbi-cap.o vivid-vbi-out.o \ + vivid-osd.o vivid-meta-cap.o vivid-meta-out.o \ + vivid-kthread-touch.o vivid-touch-cap.o +ifeq ($(CONFIG_VIDEO_VIVID_CEC),y) + vivid-objs += vivid-cec.o +endif + +obj-$(CONFIG_VIDEO_VIVID) += vivid.o diff --git a/drivers/media/test-drivers/vivid/vivid-cec.c b/drivers/media/test-drivers/vivid/vivid-cec.c new file mode 100644 index 000000000..1f7469ff0 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-cec.c @@ -0,0 +1,325 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-cec.c - A Virtual Video Test Driver, cec emulation + * + * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/delay.h> +#include <media/cec.h> + +#include "vivid-core.h" +#include "vivid-cec.h" + +#define CEC_START_BIT_US 4500 +#define CEC_DATA_BIT_US 2400 +#define CEC_MARGIN_US 350 + +struct xfer_on_bus { + struct cec_adapter *adap; + u8 status; +}; + +static bool find_dest_adap(struct vivid_dev *dev, + struct cec_adapter *adap, u8 dest) +{ + unsigned int i; + + if (dest >= 0xf) + return false; + + if (adap != dev->cec_rx_adap && dev->cec_rx_adap && + dev->cec_rx_adap->is_configured && + cec_has_log_addr(dev->cec_rx_adap, dest)) + return true; + + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) { + if (adap == dev->cec_tx_adap[i]) + continue; + if (!dev->cec_tx_adap[i]->is_configured) + continue; + if (cec_has_log_addr(dev->cec_tx_adap[i], dest)) + return true; + } + return false; +} + +static bool xfer_ready(struct vivid_dev *dev) +{ + unsigned int i; + bool ready = false; + + spin_lock(&dev->cec_xfers_slock); + for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) { + if (dev->xfers[i].sft && + dev->xfers[i].sft <= dev->cec_sft) { + ready = true; + break; + } + } + spin_unlock(&dev->cec_xfers_slock); + + return ready; +} + +/* + * If an adapter tries to send successive messages, it must wait for the + * longest signal-free time between its transmissions. But, if another + * adapter sends a message in the interim, then the wait can be reduced + * because the messages are no longer successive. Make these adjustments + * if necessary. Should be called holding cec_xfers_slock. + */ +static void adjust_sfts(struct vivid_dev *dev) +{ + unsigned int i; + u8 initiator; + + for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) { + if (dev->xfers[i].sft <= CEC_SIGNAL_FREE_TIME_RETRY) + continue; + initiator = dev->xfers[i].msg[0] >> 4; + if (initiator == dev->last_initiator) + dev->xfers[i].sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER; + else + dev->xfers[i].sft = CEC_SIGNAL_FREE_TIME_NEW_INITIATOR; + } +} + +/* + * The main emulation of the bus on which CEC adapters attempt to send + * messages to each other. The bus keeps track of how long it has been + * signal-free and accepts a pending transmission only if the state of + * the bus matches the transmission's signal-free requirements. It calls + * cec_transmit_attempt_done() for all transmits that enter the bus and + * cec_received_msg() for successful transmits. + */ +int vivid_cec_bus_thread(void *_dev) +{ + u32 last_sft; + unsigned int i; + unsigned int dest; + ktime_t start, end; + s64 delta_us, retry_us; + struct vivid_dev *dev = _dev; + + dev->cec_sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER; + for (;;) { + bool first = true; + int wait_xfer_us = 0; + bool valid_dest = false; + int wait_arb_lost_us = 0; + unsigned int first_idx = 0; + unsigned int first_status = 0; + struct cec_msg first_msg = {}; + struct xfer_on_bus xfers_on_bus[MAX_OUTPUTS] = {}; + + wait_event_interruptible(dev->kthread_waitq_cec, xfer_ready(dev) || + kthread_should_stop()); + if (kthread_should_stop()) + break; + last_sft = dev->cec_sft; + dev->cec_sft = 0; + /* + * Move the messages that are ready onto the bus. The adapter with + * the most leading zeros will win control of the bus and any other + * adapters will lose arbitration. + */ + spin_lock(&dev->cec_xfers_slock); + for (i = 0; i < ARRAY_SIZE(dev->xfers); i++) { + if (!dev->xfers[i].sft || dev->xfers[i].sft > last_sft) + continue; + if (first) { + first = false; + first_idx = i; + xfers_on_bus[first_idx].adap = dev->xfers[i].adap; + memcpy(first_msg.msg, dev->xfers[i].msg, dev->xfers[i].len); + first_msg.len = dev->xfers[i].len; + } else { + xfers_on_bus[i].adap = dev->xfers[i].adap; + xfers_on_bus[i].status = CEC_TX_STATUS_ARB_LOST; + /* + * For simplicity wait for all 4 bits of the initiator's + * address even though HDMI specification uses bit-level + * precision. + */ + wait_arb_lost_us = 4 * CEC_DATA_BIT_US + CEC_START_BIT_US; + } + dev->xfers[i].sft = 0; + } + dev->last_initiator = cec_msg_initiator(&first_msg); + adjust_sfts(dev); + spin_unlock(&dev->cec_xfers_slock); + + dest = cec_msg_destination(&first_msg); + valid_dest = cec_msg_is_broadcast(&first_msg); + if (!valid_dest) + valid_dest = find_dest_adap(dev, xfers_on_bus[first_idx].adap, dest); + if (valid_dest) { + first_status = CEC_TX_STATUS_OK; + /* + * Message length is in bytes, but each byte is transmitted in + * a block of 10 bits. + */ + wait_xfer_us = first_msg.len * 10 * CEC_DATA_BIT_US; + } else { + first_status = CEC_TX_STATUS_NACK; + /* + * A message that is not acknowledged stops transmitting after + * the header block of 10 bits. + */ + wait_xfer_us = 10 * CEC_DATA_BIT_US; + } + wait_xfer_us += CEC_START_BIT_US; + xfers_on_bus[first_idx].status = first_status; + + /* Sleep as if sending messages on a real hardware bus. */ + start = ktime_get(); + if (wait_arb_lost_us) { + usleep_range(wait_arb_lost_us - CEC_MARGIN_US, wait_arb_lost_us); + for (i = 0; i < ARRAY_SIZE(xfers_on_bus); i++) { + if (xfers_on_bus[i].status != CEC_TX_STATUS_ARB_LOST) + continue; + cec_transmit_attempt_done(xfers_on_bus[i].adap, + CEC_TX_STATUS_ARB_LOST); + } + if (kthread_should_stop()) + break; + } + wait_xfer_us -= wait_arb_lost_us; + usleep_range(wait_xfer_us - CEC_MARGIN_US, wait_xfer_us); + cec_transmit_attempt_done(xfers_on_bus[first_idx].adap, first_status); + if (kthread_should_stop()) + break; + if (first_status == CEC_TX_STATUS_OK) { + if (xfers_on_bus[first_idx].adap != dev->cec_rx_adap) + cec_received_msg(dev->cec_rx_adap, &first_msg); + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) + if (xfers_on_bus[first_idx].adap != dev->cec_tx_adap[i]) + cec_received_msg(dev->cec_tx_adap[i], &first_msg); + } + end = ktime_get(); + /* + * If the emulated transfer took more or less time than it should + * have, then compensate by adjusting the wait time needed for the + * bus to be signal-free for 3 bit periods (the retry time). + */ + delta_us = div_s64(end - start, 1000); + delta_us -= wait_xfer_us + wait_arb_lost_us; + retry_us = CEC_SIGNAL_FREE_TIME_RETRY * CEC_DATA_BIT_US - delta_us; + if (retry_us > CEC_MARGIN_US) + usleep_range(retry_us - CEC_MARGIN_US, retry_us); + dev->cec_sft = CEC_SIGNAL_FREE_TIME_RETRY; + /* + * If there are no messages that need to be retried, check if any + * adapters that did not just transmit a message are ready to + * transmit. If none of these adapters are ready, then increase + * the signal-free time so that the bus is available to all + * adapters and go back to waiting for a transmission. + */ + while (dev->cec_sft >= CEC_SIGNAL_FREE_TIME_RETRY && + dev->cec_sft < CEC_SIGNAL_FREE_TIME_NEXT_XFER && + !xfer_ready(dev) && !kthread_should_stop()) { + usleep_range(2 * CEC_DATA_BIT_US - CEC_MARGIN_US, + 2 * CEC_DATA_BIT_US); + dev->cec_sft += 2; + } + } + return 0; +} + +static int vivid_cec_adap_enable(struct cec_adapter *adap, bool enable) +{ + adap->cec_pin_is_high = true; + return 0; +} + +static int vivid_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) +{ + return 0; +} + +static int vivid_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, + u32 signal_free_time, struct cec_msg *msg) +{ + struct vivid_dev *dev = cec_get_drvdata(adap); + u8 idx = cec_msg_initiator(msg); + + spin_lock(&dev->cec_xfers_slock); + dev->xfers[idx].adap = adap; + memcpy(dev->xfers[idx].msg, msg->msg, CEC_MAX_MSG_SIZE); + dev->xfers[idx].len = msg->len; + dev->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_RETRY; + if (signal_free_time > CEC_SIGNAL_FREE_TIME_RETRY) { + if (idx == dev->last_initiator) + dev->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_NEXT_XFER; + else + dev->xfers[idx].sft = CEC_SIGNAL_FREE_TIME_NEW_INITIATOR; + } + spin_unlock(&dev->cec_xfers_slock); + wake_up_interruptible(&dev->kthread_waitq_cec); + + return 0; +} + +static int vivid_received(struct cec_adapter *adap, struct cec_msg *msg) +{ + struct vivid_dev *dev = cec_get_drvdata(adap); + struct cec_msg reply; + u8 dest = cec_msg_destination(msg); + u8 disp_ctl; + char osd[14]; + + if (cec_msg_is_broadcast(msg)) + dest = adap->log_addrs.log_addr[0]; + cec_msg_init(&reply, dest, cec_msg_initiator(msg)); + + switch (cec_msg_opcode(msg)) { + case CEC_MSG_SET_OSD_STRING: + if (!cec_is_sink(adap)) + return -ENOMSG; + cec_ops_set_osd_string(msg, &disp_ctl, osd); + switch (disp_ctl) { + case CEC_OP_DISP_CTL_DEFAULT: + strscpy(dev->osd, osd, sizeof(dev->osd)); + dev->osd_jiffies = jiffies; + break; + case CEC_OP_DISP_CTL_UNTIL_CLEARED: + strscpy(dev->osd, osd, sizeof(dev->osd)); + dev->osd_jiffies = 0; + break; + case CEC_OP_DISP_CTL_CLEAR: + dev->osd[0] = 0; + dev->osd_jiffies = 0; + break; + default: + cec_msg_feature_abort(&reply, cec_msg_opcode(msg), + CEC_OP_ABORT_INVALID_OP); + cec_transmit_msg(adap, &reply, false); + break; + } + break; + default: + return -ENOMSG; + } + return 0; +} + +static const struct cec_adap_ops vivid_cec_adap_ops = { + .adap_enable = vivid_cec_adap_enable, + .adap_log_addr = vivid_cec_adap_log_addr, + .adap_transmit = vivid_cec_adap_transmit, + .received = vivid_received, +}; + +struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev, + unsigned int idx, + bool is_source) +{ + u32 caps = CEC_CAP_DEFAULTS | CEC_CAP_MONITOR_ALL | CEC_CAP_MONITOR_PIN; + char name[32]; + + snprintf(name, sizeof(name), "vivid-%03d-vid-%s%d", + dev->inst, is_source ? "out" : "cap", idx); + return cec_allocate_adapter(&vivid_cec_adap_ops, dev, + name, caps, CEC_MAX_LOG_ADDRS); +} diff --git a/drivers/media/test-drivers/vivid/vivid-cec.h b/drivers/media/test-drivers/vivid/vivid-cec.h new file mode 100644 index 000000000..b2bcddb50 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-cec.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-cec.h - A Virtual Video Test Driver, cec emulation + * + * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifdef CONFIG_VIDEO_VIVID_CEC +struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev, + unsigned int idx, + bool is_source); +int vivid_cec_bus_thread(void *_dev); +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c new file mode 100644 index 000000000..f28440e6c --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-core.c @@ -0,0 +1,2183 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-core.c - A Virtual Video Test Driver, core initialization + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/font.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/videobuf2-vmalloc.h> +#include <media/videobuf2-dma-contig.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-vid-cap.h" +#include "vivid-vid-out.h" +#include "vivid-radio-common.h" +#include "vivid-radio-rx.h" +#include "vivid-radio-tx.h" +#include "vivid-sdr-cap.h" +#include "vivid-vbi-cap.h" +#include "vivid-vbi-out.h" +#include "vivid-osd.h" +#include "vivid-cec.h" +#include "vivid-ctrls.h" +#include "vivid-meta-cap.h" +#include "vivid-meta-out.h" +#include "vivid-touch-cap.h" + +#define VIVID_MODULE_NAME "vivid" + +/* The maximum number of vivid devices */ +#define VIVID_MAX_DEVS CONFIG_VIDEO_VIVID_MAX_DEVS + +MODULE_DESCRIPTION("Virtual Video Test Driver"); +MODULE_AUTHOR("Hans Verkuil"); +MODULE_LICENSE("GPL"); + +static unsigned n_devs = 1; +module_param(n_devs, uint, 0444); +MODULE_PARM_DESC(n_devs, " number of driver instances to create"); + +static int vid_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(vid_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(vid_cap_nr, " videoX start number, -1 is autodetect"); + +static int vid_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(vid_out_nr, int, NULL, 0444); +MODULE_PARM_DESC(vid_out_nr, " videoX start number, -1 is autodetect"); + +static int vbi_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(vbi_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(vbi_cap_nr, " vbiX start number, -1 is autodetect"); + +static int vbi_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(vbi_out_nr, int, NULL, 0444); +MODULE_PARM_DESC(vbi_out_nr, " vbiX start number, -1 is autodetect"); + +static int sdr_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(sdr_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(sdr_cap_nr, " swradioX start number, -1 is autodetect"); + +static int radio_rx_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(radio_rx_nr, int, NULL, 0444); +MODULE_PARM_DESC(radio_rx_nr, " radioX start number, -1 is autodetect"); + +static int radio_tx_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(radio_tx_nr, int, NULL, 0444); +MODULE_PARM_DESC(radio_tx_nr, " radioX start number, -1 is autodetect"); + +static int meta_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(meta_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(meta_cap_nr, " videoX start number, -1 is autodetect"); + +static int meta_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(meta_out_nr, int, NULL, 0444); +MODULE_PARM_DESC(meta_out_nr, " videoX start number, -1 is autodetect"); + +static int touch_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(touch_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(touch_cap_nr, " v4l-touchX start number, -1 is autodetect"); + +static int ccs_cap_mode[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(ccs_cap_mode, int, NULL, 0444); +MODULE_PARM_DESC(ccs_cap_mode, " capture crop/compose/scale mode:\n" + "\t\t bit 0=crop, 1=compose, 2=scale,\n" + "\t\t -1=user-controlled (default)"); + +static int ccs_out_mode[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(ccs_out_mode, int, NULL, 0444); +MODULE_PARM_DESC(ccs_out_mode, " output crop/compose/scale mode:\n" + "\t\t bit 0=crop, 1=compose, 2=scale,\n" + "\t\t -1=user-controlled (default)"); + +static unsigned multiplanar[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 1 }; +module_param_array(multiplanar, uint, NULL, 0444); +MODULE_PARM_DESC(multiplanar, " 1 (default) creates a single planar device, 2 creates a multiplanar device."); + +/* + * Default: video + vbi-cap (raw and sliced) + radio rx + radio tx + sdr + + * vbi-out + vid-out + meta-cap + */ +static unsigned int node_types[VIVID_MAX_DEVS] = { + [0 ... (VIVID_MAX_DEVS - 1)] = 0xe1d3d +}; +module_param_array(node_types, uint, NULL, 0444); +MODULE_PARM_DESC(node_types, " node types, default is 0xe1d3d. Bitmask with the following meaning:\n" + "\t\t bit 0: Video Capture node\n" + "\t\t bit 2-3: VBI Capture node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n" + "\t\t bit 4: Radio Receiver node\n" + "\t\t bit 5: Software Defined Radio Receiver node\n" + "\t\t bit 8: Video Output node\n" + "\t\t bit 10-11: VBI Output node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n" + "\t\t bit 12: Radio Transmitter node\n" + "\t\t bit 16: Framebuffer for testing overlays\n" + "\t\t bit 17: Metadata Capture node\n" + "\t\t bit 18: Metadata Output node\n" + "\t\t bit 19: Touch Capture node\n"); + +/* Default: 4 inputs */ +static unsigned num_inputs[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 4 }; +module_param_array(num_inputs, uint, NULL, 0444); +MODULE_PARM_DESC(num_inputs, " number of inputs, default is 4"); + +/* Default: input 0 = WEBCAM, 1 = TV, 2 = SVID, 3 = HDMI */ +static unsigned input_types[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 0xe4 }; +module_param_array(input_types, uint, NULL, 0444); +MODULE_PARM_DESC(input_types, " input types, default is 0xe4. Two bits per input,\n" + "\t\t bits 0-1 == input 0, bits 31-30 == input 15.\n" + "\t\t Type 0 == webcam, 1 == TV, 2 == S-Video, 3 == HDMI"); + +/* Default: 2 outputs */ +static unsigned num_outputs[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 2 }; +module_param_array(num_outputs, uint, NULL, 0444); +MODULE_PARM_DESC(num_outputs, " number of outputs, default is 2"); + +/* Default: output 0 = SVID, 1 = HDMI */ +static unsigned output_types[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 2 }; +module_param_array(output_types, uint, NULL, 0444); +MODULE_PARM_DESC(output_types, " output types, default is 0x02. One bit per output,\n" + "\t\t bit 0 == output 0, bit 15 == output 15.\n" + "\t\t Type 0 == S-Video, 1 == HDMI"); + +unsigned vivid_debug; +module_param(vivid_debug, uint, 0644); +MODULE_PARM_DESC(vivid_debug, " activates debug info"); + +static bool no_error_inj; +module_param(no_error_inj, bool, 0444); +MODULE_PARM_DESC(no_error_inj, " if set disable the error injecting controls"); + +static unsigned int allocators[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 0 }; +module_param_array(allocators, uint, NULL, 0444); +MODULE_PARM_DESC(allocators, " memory allocator selection, default is 0.\n" + "\t\t 0 == vmalloc\n" + "\t\t 1 == dma-contig"); + +static unsigned int cache_hints[VIVID_MAX_DEVS] = { + [0 ... (VIVID_MAX_DEVS - 1)] = 0 +}; +module_param_array(cache_hints, uint, NULL, 0444); +MODULE_PARM_DESC(cache_hints, " user-space cache hints, default is 0.\n" + "\t\t 0 == forbid\n" + "\t\t 1 == allow"); + +static unsigned int supports_requests[VIVID_MAX_DEVS] = { + [0 ... (VIVID_MAX_DEVS - 1)] = 1 +}; +module_param_array(supports_requests, uint, NULL, 0444); +MODULE_PARM_DESC(supports_requests, " support for requests, default is 1.\n" + "\t\t 0 == no support\n" + "\t\t 1 == supports requests\n" + "\t\t 2 == requires requests"); + +static struct vivid_dev *vivid_devs[VIVID_MAX_DEVS]; + +const struct v4l2_rect vivid_min_rect = { + 0, 0, MIN_WIDTH, MIN_HEIGHT +}; + +const struct v4l2_rect vivid_max_rect = { + 0, 0, MAX_WIDTH * MAX_ZOOM, MAX_HEIGHT * MAX_ZOOM +}; + +static const u8 vivid_hdmi_edid[256] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, + 0x31, 0xd8, 0x34, 0x12, 0x00, 0x00, 0x00, 0x00, + 0x22, 0x1a, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78, + 0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, + 0x0f, 0x50, 0x54, 0x2f, 0xcf, 0x00, 0x31, 0x59, + 0x45, 0x59, 0x81, 0x80, 0x81, 0x40, 0x90, 0x40, + 0x95, 0x00, 0xa9, 0x40, 0xb3, 0x00, 0x08, 0xe8, + 0x00, 0x30, 0xf2, 0x70, 0x5a, 0x80, 0xb0, 0x58, + 0x8a, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x55, 0x18, + 0x87, 0x3c, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x76, + 0x69, 0x76, 0x69, 0x64, 0x0a, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0x10, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7b, + + 0x02, 0x03, 0x3f, 0xf1, 0x51, 0x61, 0x60, 0x5f, + 0x5e, 0x5d, 0x10, 0x1f, 0x04, 0x13, 0x22, 0x21, + 0x20, 0x05, 0x14, 0x02, 0x11, 0x01, 0x23, 0x09, + 0x07, 0x07, 0x83, 0x01, 0x00, 0x00, 0x6d, 0x03, + 0x0c, 0x00, 0x10, 0x00, 0x00, 0x3c, 0x21, 0x00, + 0x60, 0x01, 0x02, 0x03, 0x67, 0xd8, 0x5d, 0xc4, + 0x01, 0x78, 0x00, 0x00, 0xe2, 0x00, 0xca, 0xe3, + 0x05, 0x00, 0x00, 0xe3, 0x06, 0x01, 0x00, 0x4d, + 0xd0, 0x00, 0xa0, 0xf0, 0x70, 0x3e, 0x80, 0x30, + 0x20, 0x35, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00, + 0x1e, 0x1a, 0x36, 0x80, 0xa0, 0x70, 0x38, 0x1f, + 0x40, 0x30, 0x20, 0x35, 0x00, 0xc0, 0x1c, 0x32, + 0x00, 0x00, 0x1a, 0x1a, 0x1d, 0x00, 0x80, 0x51, + 0xd0, 0x1c, 0x20, 0x40, 0x80, 0x35, 0x00, 0xc0, + 0x1c, 0x32, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x82, +}; + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct vivid_dev *dev = video_drvdata(file); + + strscpy(cap->driver, "vivid", sizeof(cap->driver)); + strscpy(cap->card, "vivid", sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "platform:%s", dev->v4l2_dev.name); + + cap->capabilities = dev->vid_cap_caps | dev->vid_out_caps | + dev->vbi_cap_caps | dev->vbi_out_caps | + dev->radio_rx_caps | dev->radio_tx_caps | + dev->sdr_cap_caps | dev->meta_cap_caps | + dev->meta_out_caps | dev->touch_cap_caps | + V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int vidioc_s_hw_freq_seek(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_rx_s_hw_freq_seek(file, fh, a); + return -ENOTTY; +} + +static int vidioc_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_rx_enum_freq_bands(file, fh, band); + if (vdev->vfl_type == VFL_TYPE_SDR) + return vivid_sdr_enum_freq_bands(file, fh, band); + return -ENOTTY; +} + +static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_rx_g_tuner(file, fh, vt); + if (vdev->vfl_type == VFL_TYPE_SDR) + return vivid_sdr_g_tuner(file, fh, vt); + return vivid_video_g_tuner(file, fh, vt); +} + +static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_rx_s_tuner(file, fh, vt); + if (vdev->vfl_type == VFL_TYPE_SDR) + return vivid_sdr_s_tuner(file, fh, vt); + return vivid_video_s_tuner(file, fh, vt); +} + +static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_g_frequency(file, + vdev->vfl_dir == VFL_DIR_RX ? + &dev->radio_rx_freq : &dev->radio_tx_freq, vf); + if (vdev->vfl_type == VFL_TYPE_SDR) + return vivid_sdr_g_frequency(file, fh, vf); + return vivid_video_g_frequency(file, fh, vf); +} + +static int vidioc_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_RADIO) + return vivid_radio_s_frequency(file, + vdev->vfl_dir == VFL_DIR_RX ? + &dev->radio_rx_freq : &dev->radio_tx_freq, vf); + if (vdev->vfl_type == VFL_TYPE_SDR) + return vivid_sdr_s_frequency(file, fh, vf); + return vivid_video_s_frequency(file, fh, vf); +} + +static int vidioc_overlay(struct file *file, void *fh, unsigned i) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_overlay(file, fh, i); + return vivid_vid_out_overlay(file, fh, i); +} + +static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *a) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_g_fbuf(file, fh, a); + return vivid_vid_out_g_fbuf(file, fh, a); +} + +/* + * Only support the framebuffer of one of the vivid instances. + * Anything else is rejected. + */ +bool vivid_validate_fb(const struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev; + int i; + + for (i = 0; i < n_devs; i++) { + dev = vivid_devs[i]; + if (!dev || !dev->video_pbase) + continue; + if ((unsigned long)a->base == dev->video_pbase && + a->fmt.width <= dev->display_width && + a->fmt.height <= dev->display_height && + a->fmt.bytesperline <= dev->display_byte_stride) + return true; + } + return false; +} + +static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *a) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_s_fbuf(file, fh, a); + return vivid_vid_out_s_fbuf(file, fh, a); +} + +static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_s_std(file, fh, id); + return vivid_vid_out_s_std(file, fh, id); +} + +static int vidioc_s_dv_timings(struct file *file, void *fh, struct v4l2_dv_timings *timings) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_s_dv_timings(file, fh, timings); + return vivid_vid_out_s_dv_timings(file, fh, timings); +} + +static int vidioc_g_pixelaspect(struct file *file, void *fh, + int type, struct v4l2_fract *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_g_pixelaspect(file, fh, type, f); + return vivid_vid_out_g_pixelaspect(file, fh, type, f); +} + +static int vidioc_g_selection(struct file *file, void *fh, + struct v4l2_selection *sel) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_g_selection(file, fh, sel); + return vivid_vid_out_g_selection(file, fh, sel); +} + +static int vidioc_s_selection(struct file *file, void *fh, + struct v4l2_selection *sel) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_s_selection(file, fh, sel); + return vivid_vid_out_s_selection(file, fh, sel); +} + +static int vidioc_g_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_parm_tch(file, fh, parm); + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_g_parm(file, fh, parm); + return vivid_vid_out_g_parm(file, fh, parm); +} + +static int vidioc_s_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_vid_cap_s_parm(file, fh, parm); + return -ENOTTY; +} + +static int vidioc_log_status(struct file *file, void *fh) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + v4l2_ctrl_log_status(file, fh); + if (vdev->vfl_dir == VFL_DIR_RX && vdev->vfl_type == VFL_TYPE_VIDEO) + tpg_log_status(&dev->tpg); + return 0; +} + +static ssize_t vivid_radio_read(struct file *file, char __user *buf, + size_t size, loff_t *offset) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_TX) + return -EINVAL; + return vivid_radio_rx_read(file, buf, size, offset); +} + +static ssize_t vivid_radio_write(struct file *file, const char __user *buf, + size_t size, loff_t *offset) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return -EINVAL; + return vivid_radio_tx_write(file, buf, size, offset); +} + +static __poll_t vivid_radio_poll(struct file *file, struct poll_table_struct *wait) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) + return vivid_radio_rx_poll(file, wait); + return vivid_radio_tx_poll(file, wait); +} + +static int vivid_enum_input(struct file *file, void *priv, + struct v4l2_input *inp) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_input_tch(file, priv, inp); + return vidioc_enum_input(file, priv, inp); +} + +static int vivid_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_input_tch(file, priv, i); + return vidioc_g_input(file, priv, i); +} + +static int vivid_s_input(struct file *file, void *priv, unsigned int i) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_s_input_tch(file, priv, i); + return vidioc_s_input(file, priv, i); +} + +static int vivid_enum_fmt_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_fmt_tch(file, priv, f); + return vivid_enum_fmt_vid(file, priv, f); +} + +static int vivid_g_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_g_fmt_vid_cap(file, priv, f); +} + +static int vivid_try_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_try_fmt_vid_cap(file, priv, f); +} + +static int vivid_s_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_s_fmt_vid_cap(file, priv, f); +} + +static int vivid_g_fmt_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch_mplane(file, priv, f); + return vidioc_g_fmt_vid_cap_mplane(file, priv, f); +} + +static int vivid_try_fmt_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch_mplane(file, priv, f); + return vidioc_try_fmt_vid_cap_mplane(file, priv, f); +} + +static int vivid_s_fmt_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch_mplane(file, priv, f); + return vidioc_s_fmt_vid_cap_mplane(file, priv, f); +} + +static bool vivid_is_in_use(bool valid, struct video_device *vdev) +{ + unsigned long flags; + bool res; + + if (!valid) + return false; + spin_lock_irqsave(&vdev->fh_lock, flags); + res = !list_empty(&vdev->fh_list); + spin_unlock_irqrestore(&vdev->fh_lock, flags); + return res; +} + +static bool vivid_is_last_user(struct vivid_dev *dev) +{ + unsigned int uses = + vivid_is_in_use(dev->has_vid_cap, &dev->vid_cap_dev) + + vivid_is_in_use(dev->has_vid_out, &dev->vid_out_dev) + + vivid_is_in_use(dev->has_vbi_cap, &dev->vbi_cap_dev) + + vivid_is_in_use(dev->has_vbi_out, &dev->vbi_out_dev) + + vivid_is_in_use(dev->has_radio_rx, &dev->radio_rx_dev) + + vivid_is_in_use(dev->has_radio_tx, &dev->radio_tx_dev) + + vivid_is_in_use(dev->has_sdr_cap, &dev->sdr_cap_dev) + + vivid_is_in_use(dev->has_meta_cap, &dev->meta_cap_dev) + + vivid_is_in_use(dev->has_meta_out, &dev->meta_out_dev) + + vivid_is_in_use(dev->has_touch_cap, &dev->touch_cap_dev); + + return uses == 1; +} + +static void vivid_reconnect(struct vivid_dev *dev) +{ + if (dev->has_vid_cap) + set_bit(V4L2_FL_REGISTERED, &dev->vid_cap_dev.flags); + if (dev->has_vid_out) + set_bit(V4L2_FL_REGISTERED, &dev->vid_out_dev.flags); + if (dev->has_vbi_cap) + set_bit(V4L2_FL_REGISTERED, &dev->vbi_cap_dev.flags); + if (dev->has_vbi_out) + set_bit(V4L2_FL_REGISTERED, &dev->vbi_out_dev.flags); + if (dev->has_radio_rx) + set_bit(V4L2_FL_REGISTERED, &dev->radio_rx_dev.flags); + if (dev->has_radio_tx) + set_bit(V4L2_FL_REGISTERED, &dev->radio_tx_dev.flags); + if (dev->has_sdr_cap) + set_bit(V4L2_FL_REGISTERED, &dev->sdr_cap_dev.flags); + if (dev->has_meta_cap) + set_bit(V4L2_FL_REGISTERED, &dev->meta_cap_dev.flags); + if (dev->has_meta_out) + set_bit(V4L2_FL_REGISTERED, &dev->meta_out_dev.flags); + if (dev->has_touch_cap) + set_bit(V4L2_FL_REGISTERED, &dev->touch_cap_dev.flags); + dev->disconnect_error = false; +} + +static int vivid_fop_release(struct file *file) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + mutex_lock(&dev->mutex); + if (!no_error_inj && v4l2_fh_is_singular_file(file) && + dev->disconnect_error && !video_is_registered(vdev) && + vivid_is_last_user(dev)) { + /* + * I am the last user of this driver, and a disconnect + * was forced (since this video_device is unregistered), + * so re-register all video_device's again. + */ + v4l2_info(&dev->v4l2_dev, "reconnect\n"); + vivid_reconnect(dev); + } + mutex_unlock(&dev->mutex); + if (file->private_data == dev->overlay_cap_owner) + dev->overlay_cap_owner = NULL; + if (file->private_data == dev->radio_rx_rds_owner) { + dev->radio_rx_rds_last_block = 0; + dev->radio_rx_rds_owner = NULL; + } + if (file->private_data == dev->radio_tx_rds_owner) { + dev->radio_tx_rds_last_block = 0; + dev->radio_tx_rds_owner = NULL; + } + if (vdev->queue) + return vb2_fop_release(file); + return v4l2_fh_release(file); +} + +static const struct v4l2_file_operations vivid_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vivid_fop_release, + .read = vb2_fop_read, + .write = vb2_fop_write, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vb2_fop_mmap, +}; + +static const struct v4l2_file_operations vivid_radio_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vivid_fop_release, + .read = vivid_radio_read, + .write = vivid_radio_write, + .poll = vivid_radio_poll, + .unlocked_ioctl = video_ioctl2, +}; + +static int vidioc_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *p) +{ + struct video_device *vdev = video_devdata(file); + int r; + + /* + * Sliced and raw VBI capture share the same queue so we must + * change the type. + */ + if (p->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE || + p->type == V4L2_BUF_TYPE_VBI_CAPTURE) { + r = vb2_queue_change_type(vdev->queue, p->type); + if (r) + return r; + } + + return vb2_ioctl_reqbufs(file, priv, p); +} + +static int vidioc_create_bufs(struct file *file, void *priv, + struct v4l2_create_buffers *p) +{ + struct video_device *vdev = video_devdata(file); + int r; + + /* + * Sliced and raw VBI capture share the same queue so we must + * change the type. + */ + if (p->format.type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE || + p->format.type == V4L2_BUF_TYPE_VBI_CAPTURE) { + r = vb2_queue_change_type(vdev->queue, p->format.type); + if (r) + return r; + } + + return vb2_ioctl_create_bufs(file, priv, p); +} + +static const struct v4l2_ioctl_ops vivid_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + + .vidioc_enum_fmt_vid_cap = vivid_enum_fmt_cap, + .vidioc_g_fmt_vid_cap = vivid_g_fmt_cap, + .vidioc_try_fmt_vid_cap = vivid_try_fmt_cap, + .vidioc_s_fmt_vid_cap = vivid_s_fmt_cap, + .vidioc_g_fmt_vid_cap_mplane = vivid_g_fmt_cap_mplane, + .vidioc_try_fmt_vid_cap_mplane = vivid_try_fmt_cap_mplane, + .vidioc_s_fmt_vid_cap_mplane = vivid_s_fmt_cap_mplane, + + .vidioc_enum_fmt_vid_out = vivid_enum_fmt_vid, + .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, + .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, + .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, + .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out_mplane, + .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out_mplane, + .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out_mplane, + + .vidioc_g_selection = vidioc_g_selection, + .vidioc_s_selection = vidioc_s_selection, + .vidioc_g_pixelaspect = vidioc_g_pixelaspect, + + .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, + + .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, + .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_fmt_sliced_vbi_cap, + .vidioc_s_fmt_sliced_vbi_cap = vidioc_s_fmt_sliced_vbi_cap, + .vidioc_g_sliced_vbi_cap = vidioc_g_sliced_vbi_cap, + + .vidioc_g_fmt_vbi_out = vidioc_g_fmt_vbi_out, + .vidioc_try_fmt_vbi_out = vidioc_g_fmt_vbi_out, + .vidioc_s_fmt_vbi_out = vidioc_s_fmt_vbi_out, + + .vidioc_g_fmt_sliced_vbi_out = vidioc_g_fmt_sliced_vbi_out, + .vidioc_try_fmt_sliced_vbi_out = vidioc_try_fmt_sliced_vbi_out, + .vidioc_s_fmt_sliced_vbi_out = vidioc_s_fmt_sliced_vbi_out, + + .vidioc_enum_fmt_sdr_cap = vidioc_enum_fmt_sdr_cap, + .vidioc_g_fmt_sdr_cap = vidioc_g_fmt_sdr_cap, + .vidioc_try_fmt_sdr_cap = vidioc_try_fmt_sdr_cap, + .vidioc_s_fmt_sdr_cap = vidioc_s_fmt_sdr_cap, + + .vidioc_overlay = vidioc_overlay, + .vidioc_enum_framesizes = vidioc_enum_framesizes, + .vidioc_enum_frameintervals = vidioc_enum_frameintervals, + .vidioc_g_parm = vidioc_g_parm, + .vidioc_s_parm = vidioc_s_parm, + + .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, + .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, + .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, + .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, + .vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_out_overlay, + .vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_out_overlay, + .vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_out_overlay, + .vidioc_g_fbuf = vidioc_g_fbuf, + .vidioc_s_fbuf = vidioc_s_fbuf, + + .vidioc_reqbufs = vidioc_reqbufs, + .vidioc_create_bufs = vidioc_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + + .vidioc_enum_input = vivid_enum_input, + .vidioc_g_input = vivid_g_input, + .vidioc_s_input = vivid_s_input, + .vidioc_s_audio = vidioc_s_audio, + .vidioc_g_audio = vidioc_g_audio, + .vidioc_enumaudio = vidioc_enumaudio, + .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_modulator = vidioc_s_modulator, + .vidioc_g_modulator = vidioc_g_modulator, + .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, + .vidioc_enum_freq_bands = vidioc_enum_freq_bands, + + .vidioc_enum_output = vidioc_enum_output, + .vidioc_g_output = vidioc_g_output, + .vidioc_s_output = vidioc_s_output, + .vidioc_s_audout = vidioc_s_audout, + .vidioc_g_audout = vidioc_g_audout, + .vidioc_enumaudout = vidioc_enumaudout, + + .vidioc_querystd = vidioc_querystd, + .vidioc_g_std = vidioc_g_std, + .vidioc_s_std = vidioc_s_std, + .vidioc_s_dv_timings = vidioc_s_dv_timings, + .vidioc_g_dv_timings = vidioc_g_dv_timings, + .vidioc_query_dv_timings = vidioc_query_dv_timings, + .vidioc_enum_dv_timings = vidioc_enum_dv_timings, + .vidioc_dv_timings_cap = vidioc_dv_timings_cap, + .vidioc_g_edid = vidioc_g_edid, + .vidioc_s_edid = vidioc_s_edid, + + .vidioc_log_status = vidioc_log_status, + .vidioc_subscribe_event = vidioc_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, + + .vidioc_enum_fmt_meta_cap = vidioc_enum_fmt_meta_cap, + .vidioc_g_fmt_meta_cap = vidioc_g_fmt_meta_cap, + .vidioc_s_fmt_meta_cap = vidioc_g_fmt_meta_cap, + .vidioc_try_fmt_meta_cap = vidioc_g_fmt_meta_cap, + + .vidioc_enum_fmt_meta_out = vidioc_enum_fmt_meta_out, + .vidioc_g_fmt_meta_out = vidioc_g_fmt_meta_out, + .vidioc_s_fmt_meta_out = vidioc_g_fmt_meta_out, + .vidioc_try_fmt_meta_out = vidioc_g_fmt_meta_out, +}; + +/* ----------------------------------------------------------------- + Initialization and module stuff + ------------------------------------------------------------------*/ + +static void vivid_dev_release(struct v4l2_device *v4l2_dev) +{ + struct vivid_dev *dev = container_of(v4l2_dev, struct vivid_dev, v4l2_dev); + + vivid_free_controls(dev); + v4l2_device_unregister(&dev->v4l2_dev); +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_cleanup(&dev->mdev); +#endif + vfree(dev->scaled_line); + vfree(dev->blended_line); + vfree(dev->edid); + vfree(dev->bitmap_cap); + vfree(dev->bitmap_out); + tpg_free(&dev->tpg); + kfree(dev->query_dv_timings_qmenu); + kfree(dev->query_dv_timings_qmenu_strings); + kfree(dev); +} + +#ifdef CONFIG_MEDIA_CONTROLLER +static int vivid_req_validate(struct media_request *req) +{ + struct vivid_dev *dev = container_of(req->mdev, struct vivid_dev, mdev); + + if (dev->req_validate_error) { + dev->req_validate_error = false; + return -EINVAL; + } + return vb2_request_validate(req); +} + +static const struct media_device_ops vivid_media_ops = { + .req_validate = vivid_req_validate, + .req_queue = vb2_request_queue, +}; +#endif + +static int vivid_create_queue(struct vivid_dev *dev, + struct vb2_queue *q, + u32 buf_type, + unsigned int min_buffers_needed, + const struct vb2_ops *ops) +{ + if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->multiplanar) + buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + else if (buf_type == V4L2_BUF_TYPE_VIDEO_OUTPUT && dev->multiplanar) + buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + else if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE && !dev->has_raw_vbi_cap) + buf_type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; + else if (buf_type == V4L2_BUF_TYPE_VBI_OUTPUT && !dev->has_raw_vbi_out) + buf_type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT; + + q->type = buf_type; + q->io_modes = VB2_MMAP | VB2_DMABUF; + q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ; + if (allocators[dev->inst] != 1) + q->io_modes |= VB2_USERPTR; + q->drv_priv = dev; + q->buf_struct_size = sizeof(struct vivid_buffer); + q->ops = ops; + q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops : + &vb2_vmalloc_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->min_buffers_needed = supports_requests[dev->inst] ? 0 : min_buffers_needed; + q->lock = &dev->mutex; + q->dev = dev->v4l2_dev.dev; + q->supports_requests = supports_requests[dev->inst]; + q->requires_requests = supports_requests[dev->inst] >= 2; + q->allow_cache_hints = (cache_hints[dev->inst] == 1); + + return vb2_queue_init(q); +} + +static int vivid_detect_feature_set(struct vivid_dev *dev, int inst, + unsigned node_type, + bool *has_tuner, + bool *has_modulator, + int *ccs_cap, + int *ccs_out, + unsigned in_type_counter[4], + unsigned out_type_counter[4]) +{ + int i; + + /* do we use single- or multi-planar? */ + dev->multiplanar = multiplanar[inst] > 1; + v4l2_info(&dev->v4l2_dev, "using %splanar format API\n", + dev->multiplanar ? "multi" : "single "); + + /* how many inputs do we have and of what type? */ + dev->num_inputs = num_inputs[inst]; + if (node_type & 0x20007) { + if (dev->num_inputs < 1) + dev->num_inputs = 1; + } else { + dev->num_inputs = 0; + } + if (dev->num_inputs >= MAX_INPUTS) + dev->num_inputs = MAX_INPUTS; + for (i = 0; i < dev->num_inputs; i++) { + dev->input_type[i] = (input_types[inst] >> (i * 2)) & 0x3; + dev->input_name_counter[i] = in_type_counter[dev->input_type[i]]++; + } + dev->has_audio_inputs = in_type_counter[TV] && in_type_counter[SVID]; + if (in_type_counter[HDMI] == 16) { + /* The CEC physical address only allows for max 15 inputs */ + in_type_counter[HDMI]--; + dev->num_inputs--; + } + dev->num_hdmi_inputs = in_type_counter[HDMI]; + + /* how many outputs do we have and of what type? */ + dev->num_outputs = num_outputs[inst]; + if (node_type & 0x40300) { + if (dev->num_outputs < 1) + dev->num_outputs = 1; + } else { + dev->num_outputs = 0; + } + if (dev->num_outputs >= MAX_OUTPUTS) + dev->num_outputs = MAX_OUTPUTS; + for (i = 0; i < dev->num_outputs; i++) { + dev->output_type[i] = ((output_types[inst] >> i) & 1) ? HDMI : SVID; + dev->output_name_counter[i] = out_type_counter[dev->output_type[i]]++; + dev->display_present[i] = true; + } + dev->has_audio_outputs = out_type_counter[SVID]; + if (out_type_counter[HDMI] == 16) { + /* + * The CEC physical address only allows for max 15 inputs, + * so outputs are also limited to 15 to allow for easy + * CEC output to input mapping. + */ + out_type_counter[HDMI]--; + dev->num_outputs--; + } + dev->num_hdmi_outputs = out_type_counter[HDMI]; + + /* do we create a video capture device? */ + dev->has_vid_cap = node_type & 0x0001; + + /* do we create a vbi capture device? */ + if (in_type_counter[TV] || in_type_counter[SVID]) { + dev->has_raw_vbi_cap = node_type & 0x0004; + dev->has_sliced_vbi_cap = node_type & 0x0008; + dev->has_vbi_cap = dev->has_raw_vbi_cap | dev->has_sliced_vbi_cap; + } + + /* do we create a meta capture device */ + dev->has_meta_cap = node_type & 0x20000; + + /* sanity checks */ + if ((in_type_counter[WEBCAM] || in_type_counter[HDMI]) && + !dev->has_vid_cap && !dev->has_meta_cap) { + v4l2_warn(&dev->v4l2_dev, + "Webcam or HDMI input without video or metadata nodes\n"); + return -EINVAL; + } + if ((in_type_counter[TV] || in_type_counter[SVID]) && + !dev->has_vid_cap && !dev->has_vbi_cap && !dev->has_meta_cap) { + v4l2_warn(&dev->v4l2_dev, + "TV or S-Video input without video, VBI or metadata nodes\n"); + return -EINVAL; + } + + /* do we create a video output device? */ + dev->has_vid_out = node_type & 0x0100; + + /* do we create a vbi output device? */ + if (out_type_counter[SVID]) { + dev->has_raw_vbi_out = node_type & 0x0400; + dev->has_sliced_vbi_out = node_type & 0x0800; + dev->has_vbi_out = dev->has_raw_vbi_out | dev->has_sliced_vbi_out; + } + + /* do we create a metadata output device */ + dev->has_meta_out = node_type & 0x40000; + + /* sanity checks */ + if (out_type_counter[SVID] && + !dev->has_vid_out && !dev->has_vbi_out && !dev->has_meta_out) { + v4l2_warn(&dev->v4l2_dev, + "S-Video output without video, VBI or metadata nodes\n"); + return -EINVAL; + } + if (out_type_counter[HDMI] && !dev->has_vid_out && !dev->has_meta_out) { + v4l2_warn(&dev->v4l2_dev, + "HDMI output without video or metadata nodes\n"); + return -EINVAL; + } + + /* do we create a radio receiver device? */ + dev->has_radio_rx = node_type & 0x0010; + + /* do we create a radio transmitter device? */ + dev->has_radio_tx = node_type & 0x1000; + + /* do we create a software defined radio capture device? */ + dev->has_sdr_cap = node_type & 0x0020; + + /* do we have a TV tuner? */ + dev->has_tv_tuner = in_type_counter[TV]; + + /* do we have a tuner? */ + *has_tuner = ((dev->has_vid_cap || dev->has_vbi_cap) && in_type_counter[TV]) || + dev->has_radio_rx || dev->has_sdr_cap; + + /* do we have a modulator? */ + *has_modulator = dev->has_radio_tx; + + if (dev->has_vid_cap) + /* do we have a framebuffer for overlay testing? */ + dev->has_fb = node_type & 0x10000; + + /* can we do crop/compose/scaling while capturing? */ + if (no_error_inj && *ccs_cap == -1) + *ccs_cap = 7; + + /* if ccs_cap == -1, then the user can select it using controls */ + if (*ccs_cap != -1) { + dev->has_crop_cap = *ccs_cap & 1; + dev->has_compose_cap = *ccs_cap & 2; + dev->has_scaler_cap = *ccs_cap & 4; + v4l2_info(&dev->v4l2_dev, "Capture Crop: %c Compose: %c Scaler: %c\n", + dev->has_crop_cap ? 'Y' : 'N', + dev->has_compose_cap ? 'Y' : 'N', + dev->has_scaler_cap ? 'Y' : 'N'); + } + + /* can we do crop/compose/scaling with video output? */ + if (no_error_inj && *ccs_out == -1) + *ccs_out = 7; + + /* if ccs_out == -1, then the user can select it using controls */ + if (*ccs_out != -1) { + dev->has_crop_out = *ccs_out & 1; + dev->has_compose_out = *ccs_out & 2; + dev->has_scaler_out = *ccs_out & 4; + v4l2_info(&dev->v4l2_dev, "Output Crop: %c Compose: %c Scaler: %c\n", + dev->has_crop_out ? 'Y' : 'N', + dev->has_compose_out ? 'Y' : 'N', + dev->has_scaler_out ? 'Y' : 'N'); + } + + /* do we create a touch capture device */ + dev->has_touch_cap = node_type & 0x80000; + + return 0; +} + +static void vivid_set_capabilities(struct vivid_dev *dev) +{ + if (dev->has_vid_cap) { + /* set up the capabilities of the video capture device */ + dev->vid_cap_caps = dev->multiplanar ? + V4L2_CAP_VIDEO_CAPTURE_MPLANE : + V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY; + dev->vid_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_inputs) + dev->vid_cap_caps |= V4L2_CAP_AUDIO; + if (dev->has_tv_tuner) + dev->vid_cap_caps |= V4L2_CAP_TUNER; + } + if (dev->has_vid_out) { + /* set up the capabilities of the video output device */ + dev->vid_out_caps = dev->multiplanar ? + V4L2_CAP_VIDEO_OUTPUT_MPLANE : + V4L2_CAP_VIDEO_OUTPUT; + if (dev->has_fb) + dev->vid_out_caps |= V4L2_CAP_VIDEO_OUTPUT_OVERLAY; + dev->vid_out_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_outputs) + dev->vid_out_caps |= V4L2_CAP_AUDIO; + } + if (dev->has_vbi_cap) { + /* set up the capabilities of the vbi capture device */ + dev->vbi_cap_caps = (dev->has_raw_vbi_cap ? V4L2_CAP_VBI_CAPTURE : 0) | + (dev->has_sliced_vbi_cap ? V4L2_CAP_SLICED_VBI_CAPTURE : 0); + dev->vbi_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_inputs) + dev->vbi_cap_caps |= V4L2_CAP_AUDIO; + if (dev->has_tv_tuner) + dev->vbi_cap_caps |= V4L2_CAP_TUNER; + } + if (dev->has_vbi_out) { + /* set up the capabilities of the vbi output device */ + dev->vbi_out_caps = (dev->has_raw_vbi_out ? V4L2_CAP_VBI_OUTPUT : 0) | + (dev->has_sliced_vbi_out ? V4L2_CAP_SLICED_VBI_OUTPUT : 0); + dev->vbi_out_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_outputs) + dev->vbi_out_caps |= V4L2_CAP_AUDIO; + } + if (dev->has_sdr_cap) { + /* set up the capabilities of the sdr capture device */ + dev->sdr_cap_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_TUNER; + dev->sdr_cap_caps |= V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + } + /* set up the capabilities of the radio receiver device */ + if (dev->has_radio_rx) + dev->radio_rx_caps = V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE | + V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_TUNER | + V4L2_CAP_READWRITE; + /* set up the capabilities of the radio transmitter device */ + if (dev->has_radio_tx) + dev->radio_tx_caps = V4L2_CAP_RDS_OUTPUT | V4L2_CAP_MODULATOR | + V4L2_CAP_READWRITE; + + /* set up the capabilities of meta capture device */ + if (dev->has_meta_cap) { + dev->meta_cap_caps = V4L2_CAP_META_CAPTURE | + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_inputs) + dev->meta_cap_caps |= V4L2_CAP_AUDIO; + if (dev->has_tv_tuner) + dev->meta_cap_caps |= V4L2_CAP_TUNER; + } + /* set up the capabilities of meta output device */ + if (dev->has_meta_out) { + dev->meta_out_caps = V4L2_CAP_META_OUTPUT | + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (dev->has_audio_outputs) + dev->meta_out_caps |= V4L2_CAP_AUDIO; + } + /* set up the capabilities of the touch capture device */ + if (dev->has_touch_cap) { + dev->touch_cap_caps = V4L2_CAP_TOUCH | V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE; + dev->touch_cap_caps |= dev->multiplanar ? + V4L2_CAP_VIDEO_CAPTURE_MPLANE : V4L2_CAP_VIDEO_CAPTURE; + } +} + +static void vivid_disable_unused_ioctls(struct vivid_dev *dev, + bool has_tuner, + bool has_modulator, + unsigned in_type_counter[4], + unsigned out_type_counter[4]) +{ + /* disable invalid ioctls based on the feature set */ + if (!dev->has_audio_inputs) { + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_AUDIO); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_AUDIO); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUMAUDIO); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_AUDIO); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_AUDIO); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_ENUMAUDIO); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_AUDIO); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_AUDIO); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_ENUMAUDIO); + } + if (!dev->has_audio_outputs) { + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_AUDOUT); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_AUDOUT); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUMAUDOUT); + v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_S_AUDOUT); + v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_G_AUDOUT); + v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_ENUMAUDOUT); + v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_S_AUDOUT); + v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_G_AUDOUT); + v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_ENUMAUDOUT); + } + if (!in_type_counter[TV] && !in_type_counter[SVID]) { + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_STD); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_STD); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUMSTD); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_QUERYSTD); + } + if (!out_type_counter[SVID]) { + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_STD); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_STD); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUMSTD); + } + if (!has_tuner && !has_modulator) { + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_FREQUENCY); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_FREQUENCY); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_FREQUENCY); + } + if (!has_tuner) { + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_TUNER); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_TUNER); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_TUNER); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_G_TUNER); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_TUNER); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_G_TUNER); + } + if (in_type_counter[HDMI] == 0) { + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_EDID); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_EDID); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_DV_TIMINGS_CAP); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_G_DV_TIMINGS); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_DV_TIMINGS); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_ENUM_DV_TIMINGS); + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_QUERY_DV_TIMINGS); + } + if (out_type_counter[HDMI] == 0) { + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_EDID); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_DV_TIMINGS_CAP); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_DV_TIMINGS); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_DV_TIMINGS); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_DV_TIMINGS); + } + if (!dev->has_fb) { + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_FBUF); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_FBUF); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_OVERLAY); + } + v4l2_disable_ioctl(&dev->vid_cap_dev, VIDIOC_S_HW_FREQ_SEEK); + v4l2_disable_ioctl(&dev->vbi_cap_dev, VIDIOC_S_HW_FREQ_SEEK); + v4l2_disable_ioctl(&dev->sdr_cap_dev, VIDIOC_S_HW_FREQ_SEEK); + v4l2_disable_ioctl(&dev->meta_cap_dev, VIDIOC_S_HW_FREQ_SEEK); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_FREQUENCY); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_FRAMESIZES); + v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_ENUM_FRAMEINTERVALS); + v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->vbi_out_dev, VIDIOC_G_FREQUENCY); + v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_S_FREQUENCY); + v4l2_disable_ioctl(&dev->meta_out_dev, VIDIOC_G_FREQUENCY); + v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_S_PARM); + v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_ENUM_FRAMESIZES); + v4l2_disable_ioctl(&dev->touch_cap_dev, VIDIOC_ENUM_FRAMEINTERVALS); +} + +static int vivid_init_dv_timings(struct vivid_dev *dev) +{ + int i; + + while (v4l2_dv_timings_presets[dev->query_dv_timings_size].bt.width) + dev->query_dv_timings_size++; + + /* + * Create a char pointer array that points to the names of all the + * preset timings + */ + dev->query_dv_timings_qmenu = kmalloc_array(dev->query_dv_timings_size, + sizeof(char *), GFP_KERNEL); + /* + * Create a string array containing the names of all the preset + * timings. Each name is max 31 chars long (+ terminating 0). + */ + dev->query_dv_timings_qmenu_strings = + kmalloc_array(dev->query_dv_timings_size, 32, GFP_KERNEL); + + if (!dev->query_dv_timings_qmenu || + !dev->query_dv_timings_qmenu_strings) + return -ENOMEM; + + for (i = 0; i < dev->query_dv_timings_size; i++) { + const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt; + char *p = dev->query_dv_timings_qmenu_strings + i * 32; + u32 htot, vtot; + + dev->query_dv_timings_qmenu[i] = p; + + htot = V4L2_DV_BT_FRAME_WIDTH(bt); + vtot = V4L2_DV_BT_FRAME_HEIGHT(bt); + snprintf(p, 32, "%ux%u%s%u", + bt->width, bt->height, bt->interlaced ? "i" : "p", + (u32)bt->pixelclock / (htot * vtot)); + } + + return 0; +} + +static int vivid_create_queues(struct vivid_dev *dev) +{ + int ret; + + /* start creating the vb2 queues */ + if (dev->has_vid_cap) { + /* initialize vid_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_vid_cap_q, + V4L2_BUF_TYPE_VIDEO_CAPTURE, 2, + &vivid_vid_cap_qops); + if (ret) + return ret; + } + + if (dev->has_vid_out) { + /* initialize vid_out queue */ + ret = vivid_create_queue(dev, &dev->vb_vid_out_q, + V4L2_BUF_TYPE_VIDEO_OUTPUT, 2, + &vivid_vid_out_qops); + if (ret) + return ret; + } + + if (dev->has_vbi_cap) { + /* initialize vbi_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_vbi_cap_q, + V4L2_BUF_TYPE_VBI_CAPTURE, 2, + &vivid_vbi_cap_qops); + if (ret) + return ret; + } + + if (dev->has_vbi_out) { + /* initialize vbi_out queue */ + ret = vivid_create_queue(dev, &dev->vb_vbi_out_q, + V4L2_BUF_TYPE_VBI_OUTPUT, 2, + &vivid_vbi_out_qops); + if (ret) + return ret; + } + + if (dev->has_sdr_cap) { + /* initialize sdr_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_sdr_cap_q, + V4L2_BUF_TYPE_SDR_CAPTURE, 8, + &vivid_sdr_cap_qops); + if (ret) + return ret; + } + + if (dev->has_meta_cap) { + /* initialize meta_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_meta_cap_q, + V4L2_BUF_TYPE_META_CAPTURE, 2, + &vivid_meta_cap_qops); + if (ret) + return ret; + } + + if (dev->has_meta_out) { + /* initialize meta_out queue */ + ret = vivid_create_queue(dev, &dev->vb_meta_out_q, + V4L2_BUF_TYPE_META_OUTPUT, 1, + &vivid_meta_out_qops); + if (ret) + return ret; + } + + if (dev->has_touch_cap) { + /* initialize touch_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_touch_cap_q, + V4L2_BUF_TYPE_VIDEO_CAPTURE, 1, + &vivid_touch_cap_qops); + if (ret) + return ret; + } + + if (dev->has_fb) { + /* Create framebuffer for testing capture/output overlay */ + ret = vivid_fb_init(dev); + if (ret) + return ret; + v4l2_info(&dev->v4l2_dev, "Framebuffer device registered as fb%d\n", + dev->fb_info.node); + } + return 0; +} + +static int vivid_create_devnodes(struct platform_device *pdev, + struct vivid_dev *dev, int inst, + unsigned int cec_tx_bus_cnt, + v4l2_std_id tvnorms_cap, + v4l2_std_id tvnorms_out, + unsigned in_type_counter[4], + unsigned out_type_counter[4]) +{ + struct video_device *vfd; + int ret; + + if (dev->has_vid_cap) { + vfd = &dev->vid_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vid-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->vid_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_vid_cap_q; + vfd->tvnorms = tvnorms_cap; + + /* + * Provide a mutex to v4l2 core. It will be used to protect + * all fops and v4l2 ioctls. + */ + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->vid_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_cap_pad); + if (ret) + return ret; +#endif + +#ifdef CONFIG_VIDEO_VIVID_CEC + if (in_type_counter[HDMI]) { + ret = cec_register_adapter(dev->cec_rx_adap, &pdev->dev); + if (ret < 0) { + cec_delete_adapter(dev->cec_rx_adap); + dev->cec_rx_adap = NULL; + return ret; + } + cec_s_phys_addr(dev->cec_rx_adap, 0, false); + v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI input 0\n", + dev_name(&dev->cec_rx_adap->devnode.dev)); + } +#endif + + ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_cap_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_vid_out) { +#ifdef CONFIG_VIDEO_VIVID_CEC + int i; +#endif + vfd = &dev->vid_out_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vid-out", inst); + vfd->vfl_dir = VFL_DIR_TX; + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->vid_out_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_vid_out_q; + vfd->tvnorms = tvnorms_out; + + /* + * Provide a mutex to v4l2 core. It will be used to protect + * all fops and v4l2 ioctls. + */ + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->vid_out_pad.flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_out_pad); + if (ret) + return ret; +#endif + +#ifdef CONFIG_VIDEO_VIVID_CEC + for (i = 0; i < cec_tx_bus_cnt; i++) { + ret = cec_register_adapter(dev->cec_tx_adap[i], &pdev->dev); + if (ret < 0) { + for (; i < cec_tx_bus_cnt; i++) { + cec_delete_adapter(dev->cec_tx_adap[i]); + dev->cec_tx_adap[i] = NULL; + } + return ret; + } + v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI output %d\n", + dev_name(&dev->cec_tx_adap[i]->devnode.dev), i); + if (i < out_type_counter[HDMI]) + cec_s_phys_addr(dev->cec_tx_adap[i], (i + 1) << 12, false); + else + cec_s_phys_addr(dev->cec_tx_adap[i], 0x1000, false); + } +#endif + + ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_out_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_vbi_cap) { + vfd = &dev->vbi_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vbi-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->vbi_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_vbi_cap_q; + vfd->lock = &dev->mutex; + vfd->tvnorms = tvnorms_cap; + video_set_drvdata(vfd, dev); + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->vbi_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_cap_pad); + if (ret) + return ret; +#endif + + ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_cap_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s, supports %s VBI\n", + video_device_node_name(vfd), + (dev->has_raw_vbi_cap && dev->has_sliced_vbi_cap) ? + "raw and sliced" : + (dev->has_raw_vbi_cap ? "raw" : "sliced")); + } + + if (dev->has_vbi_out) { + vfd = &dev->vbi_out_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vbi-out", inst); + vfd->vfl_dir = VFL_DIR_TX; + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->vbi_out_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_vbi_out_q; + vfd->lock = &dev->mutex; + vfd->tvnorms = tvnorms_out; + video_set_drvdata(vfd, dev); + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->vbi_out_pad.flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_out_pad); + if (ret) + return ret; +#endif + + ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_out_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s, supports %s VBI\n", + video_device_node_name(vfd), + (dev->has_raw_vbi_out && dev->has_sliced_vbi_out) ? + "raw and sliced" : + (dev->has_raw_vbi_out ? "raw" : "sliced")); + } + + if (dev->has_sdr_cap) { + vfd = &dev->sdr_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-sdr-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->sdr_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_sdr_cap_q; + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->sdr_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, &dev->sdr_cap_pad); + if (ret) + return ret; +#endif + + ret = video_register_device(vfd, VFL_TYPE_SDR, sdr_cap_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_radio_rx) { + vfd = &dev->radio_rx_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-rad-rx", inst); + vfd->fops = &vivid_radio_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->radio_rx_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); + + ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_rx_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 receiver device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_radio_tx) { + vfd = &dev->radio_tx_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-rad-tx", inst); + vfd->vfl_dir = VFL_DIR_TX; + vfd->fops = &vivid_radio_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->radio_tx_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); + + ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_tx_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, "V4L2 transmitter device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_meta_cap) { + vfd = &dev->meta_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-meta-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->meta_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_meta_cap_q; + vfd->lock = &dev->mutex; + vfd->tvnorms = tvnorms_cap; + video_set_drvdata(vfd, dev); +#ifdef CONFIG_MEDIA_CONTROLLER + dev->meta_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, + &dev->meta_cap_pad); + if (ret) + return ret; +#endif + ret = video_register_device(vfd, VFL_TYPE_VIDEO, + meta_cap_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, + "V4L2 metadata capture device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_meta_out) { + vfd = &dev->meta_out_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-meta-out", inst); + vfd->vfl_dir = VFL_DIR_TX; + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->meta_out_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_meta_out_q; + vfd->lock = &dev->mutex; + vfd->tvnorms = tvnorms_out; + video_set_drvdata(vfd, dev); +#ifdef CONFIG_MEDIA_CONTROLLER + dev->meta_out_pad.flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&vfd->entity, 1, + &dev->meta_out_pad); + if (ret) + return ret; +#endif + ret = video_register_device(vfd, VFL_TYPE_VIDEO, + meta_out_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, + "V4L2 metadata output device registered as %s\n", + video_device_node_name(vfd)); + } + + if (dev->has_touch_cap) { + vfd = &dev->touch_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-touch-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->touch_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_touch_cap_q; + vfd->tvnorms = tvnorms_cap; + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); +#ifdef CONFIG_MEDIA_CONTROLLER + dev->touch_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, + &dev->touch_cap_pad); + if (ret) + return ret; +#endif + ret = video_register_device(vfd, VFL_TYPE_TOUCH, + touch_cap_nr[inst]); + if (ret < 0) + return ret; + v4l2_info(&dev->v4l2_dev, + "V4L2 touch capture device registered as %s\n", + video_device_node_name(vfd)); + } + +#ifdef CONFIG_MEDIA_CONTROLLER + /* Register the media device */ + ret = media_device_register(&dev->mdev); + if (ret) { + dev_err(dev->mdev.dev, + "media device register failed (err=%d)\n", ret); + return ret; + } +#endif + return 0; +} + +static int vivid_create_instance(struct platform_device *pdev, int inst) +{ + static const struct v4l2_dv_timings def_dv_timings = + V4L2_DV_BT_CEA_1280X720P60; + unsigned in_type_counter[4] = { 0, 0, 0, 0 }; + unsigned out_type_counter[4] = { 0, 0, 0, 0 }; + int ccs_cap = ccs_cap_mode[inst]; + int ccs_out = ccs_out_mode[inst]; + bool has_tuner; + bool has_modulator; + struct vivid_dev *dev; + unsigned node_type = node_types[inst]; + v4l2_std_id tvnorms_cap = 0, tvnorms_out = 0; + unsigned int cec_tx_bus_cnt = 0; + int ret; + int i; + + /* allocate main vivid state structure */ + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + dev->inst = inst; + +#ifdef CONFIG_MEDIA_CONTROLLER + dev->v4l2_dev.mdev = &dev->mdev; + + /* Initialize media device */ + strscpy(dev->mdev.model, VIVID_MODULE_NAME, sizeof(dev->mdev.model)); + snprintf(dev->mdev.bus_info, sizeof(dev->mdev.bus_info), + "platform:%s-%03d", VIVID_MODULE_NAME, inst); + dev->mdev.dev = &pdev->dev; + media_device_init(&dev->mdev); + dev->mdev.ops = &vivid_media_ops; +#endif + + /* register v4l2_device */ + snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), + "%s-%03d", VIVID_MODULE_NAME, inst); + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); + if (ret) { + kfree(dev); + return ret; + } + dev->v4l2_dev.release = vivid_dev_release; + + ret = vivid_detect_feature_set(dev, inst, node_type, + &has_tuner, &has_modulator, + &ccs_cap, &ccs_out, + in_type_counter, out_type_counter); + if (ret) + goto free_dev; + + vivid_set_capabilities(dev); + + ret = -ENOMEM; + /* initialize the test pattern generator */ + tpg_init(&dev->tpg, 640, 360); + if (tpg_alloc(&dev->tpg, array_size(MAX_WIDTH, MAX_ZOOM))) + goto free_dev; + dev->scaled_line = vzalloc(array_size(MAX_WIDTH, MAX_ZOOM)); + if (!dev->scaled_line) + goto free_dev; + dev->blended_line = vzalloc(array_size(MAX_WIDTH, MAX_ZOOM)); + if (!dev->blended_line) + goto free_dev; + + /* load the edid */ + dev->edid = vmalloc(array_size(256, 128)); + if (!dev->edid) + goto free_dev; + + ret = vivid_init_dv_timings(dev); + if (ret < 0) + goto free_dev; + + vivid_disable_unused_ioctls(dev, has_tuner, has_modulator, + in_type_counter, out_type_counter); + + /* configure internal data */ + dev->fmt_cap = &vivid_formats[0]; + dev->fmt_out = &vivid_formats[0]; + if (!dev->multiplanar) + vivid_formats[0].data_offset[0] = 0; + dev->webcam_size_idx = 1; + dev->webcam_ival_idx = 3; + tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc); + dev->std_out = V4L2_STD_PAL; + if (dev->input_type[0] == TV || dev->input_type[0] == SVID) + tvnorms_cap = V4L2_STD_ALL; + if (dev->output_type[0] == SVID) + tvnorms_out = V4L2_STD_ALL; + for (i = 0; i < MAX_INPUTS; i++) { + dev->dv_timings_cap[i] = def_dv_timings; + dev->std_cap[i] = V4L2_STD_PAL; + } + dev->dv_timings_out = def_dv_timings; + dev->tv_freq = 2804 /* 175.25 * 16 */; + dev->tv_audmode = V4L2_TUNER_MODE_STEREO; + dev->tv_field_cap = V4L2_FIELD_INTERLACED; + dev->tv_field_out = V4L2_FIELD_INTERLACED; + dev->radio_rx_freq = 95000 * 16; + dev->radio_rx_audmode = V4L2_TUNER_MODE_STEREO; + if (dev->has_radio_tx) { + dev->radio_tx_freq = 95500 * 16; + dev->radio_rds_loop = false; + } + dev->radio_tx_subchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_RDS; + dev->sdr_adc_freq = 300000; + dev->sdr_fm_freq = 50000000; + dev->sdr_pixelformat = V4L2_SDR_FMT_CU8; + dev->sdr_buffersize = SDR_CAP_SAMPLES_PER_BUF * 2; + + dev->edid_max_blocks = dev->edid_blocks = 2; + memcpy(dev->edid, vivid_hdmi_edid, sizeof(vivid_hdmi_edid)); + dev->radio_rds_init_time = ktime_get(); + + /* create all controls */ + ret = vivid_create_controls(dev, ccs_cap == -1, ccs_out == -1, no_error_inj, + in_type_counter[TV] || in_type_counter[SVID] || + out_type_counter[SVID], + in_type_counter[HDMI] || out_type_counter[HDMI]); + if (ret) + goto unreg_dev; + + /* enable/disable interface specific controls */ + if (dev->num_outputs && dev->output_type[0] != HDMI) + v4l2_ctrl_activate(dev->ctrl_display_present, false); + if (dev->num_inputs && dev->input_type[0] != HDMI) { + v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode, false); + v4l2_ctrl_activate(dev->ctrl_dv_timings, false); + } else if (dev->num_inputs && dev->input_type[0] == HDMI) { + v4l2_ctrl_activate(dev->ctrl_std_signal_mode, false); + v4l2_ctrl_activate(dev->ctrl_standard, false); + } + + /* + * update the capture and output formats to do a proper initial + * configuration. + */ + vivid_update_format_cap(dev, false); + vivid_update_format_out(dev); + + /* initialize overlay */ + dev->fb_cap.fmt.width = dev->src_rect.width; + dev->fb_cap.fmt.height = dev->src_rect.height; + dev->fb_cap.fmt.pixelformat = dev->fmt_cap->fourcc; + dev->fb_cap.fmt.bytesperline = dev->src_rect.width * tpg_g_twopixelsize(&dev->tpg, 0) / 2; + dev->fb_cap.fmt.sizeimage = dev->src_rect.height * dev->fb_cap.fmt.bytesperline; + + /* update touch configuration */ + dev->timeperframe_tch_cap.numerator = 1; + dev->timeperframe_tch_cap.denominator = 10; + vivid_set_touch(dev, 0); + + /* initialize locks */ + spin_lock_init(&dev->slock); + mutex_init(&dev->mutex); + + /* init dma queues */ + INIT_LIST_HEAD(&dev->vid_cap_active); + INIT_LIST_HEAD(&dev->vid_out_active); + INIT_LIST_HEAD(&dev->vbi_cap_active); + INIT_LIST_HEAD(&dev->vbi_out_active); + INIT_LIST_HEAD(&dev->sdr_cap_active); + INIT_LIST_HEAD(&dev->meta_cap_active); + INIT_LIST_HEAD(&dev->meta_out_active); + INIT_LIST_HEAD(&dev->touch_cap_active); + + spin_lock_init(&dev->cec_xfers_slock); + + if (allocators[inst] == 1) + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + + ret = vivid_create_queues(dev); + if (ret) + goto unreg_dev; + +#ifdef CONFIG_VIDEO_VIVID_CEC + if (dev->has_vid_cap && in_type_counter[HDMI]) { + struct cec_adapter *adap; + + adap = vivid_cec_alloc_adap(dev, 0, false); + ret = PTR_ERR_OR_ZERO(adap); + if (ret < 0) + goto unreg_dev; + dev->cec_rx_adap = adap; + } + + if (dev->has_vid_out) { + for (i = 0; i < dev->num_outputs; i++) { + struct cec_adapter *adap; + + if (dev->output_type[i] != HDMI) + continue; + + dev->cec_output2bus_map[i] = cec_tx_bus_cnt; + adap = vivid_cec_alloc_adap(dev, cec_tx_bus_cnt, true); + ret = PTR_ERR_OR_ZERO(adap); + if (ret < 0) { + for (i = 0; i < dev->num_outputs; i++) + cec_delete_adapter(dev->cec_tx_adap[i]); + goto unreg_dev; + } + + dev->cec_tx_adap[cec_tx_bus_cnt] = adap; + cec_tx_bus_cnt++; + } + } + + if (dev->cec_rx_adap || cec_tx_bus_cnt) { + init_waitqueue_head(&dev->kthread_waitq_cec); + dev->kthread_cec = kthread_run(vivid_cec_bus_thread, dev, + "vivid_cec-%s", dev->v4l2_dev.name); + if (IS_ERR(dev->kthread_cec)) { + ret = PTR_ERR(dev->kthread_cec); + dev->kthread_cec = NULL; + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + goto unreg_dev; + } + } + +#endif + + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vid_cap); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vid_out); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vbi_cap); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_vbi_out); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_radio_rx); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_radio_tx); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_sdr_cap); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_cap); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_out); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_touch_cap); + + /* finally start creating the device nodes */ + ret = vivid_create_devnodes(pdev, dev, inst, cec_tx_bus_cnt, + tvnorms_cap, tvnorms_out, + in_type_counter, out_type_counter); + if (ret) + goto unreg_dev; + + /* Now that everything is fine, let's add it to device list */ + vivid_devs[inst] = dev; + + return 0; + +unreg_dev: + vb2_video_unregister_device(&dev->touch_cap_dev); + vb2_video_unregister_device(&dev->meta_out_dev); + vb2_video_unregister_device(&dev->meta_cap_dev); + video_unregister_device(&dev->radio_tx_dev); + video_unregister_device(&dev->radio_rx_dev); + vb2_video_unregister_device(&dev->sdr_cap_dev); + vb2_video_unregister_device(&dev->vbi_out_dev); + vb2_video_unregister_device(&dev->vbi_cap_dev); + vb2_video_unregister_device(&dev->vid_out_dev); + vb2_video_unregister_device(&dev->vid_cap_dev); + cec_unregister_adapter(dev->cec_rx_adap); + for (i = 0; i < MAX_OUTPUTS; i++) + cec_unregister_adapter(dev->cec_tx_adap[i]); + if (dev->kthread_cec) + kthread_stop(dev->kthread_cec); +free_dev: + v4l2_device_put(&dev->v4l2_dev); + return ret; +} + +/* This routine allocates from 1 to n_devs virtual drivers. + + The real maximum number of virtual drivers will depend on how many drivers + will succeed. This is limited to the maximum number of devices that + videodev supports, which is equal to VIDEO_NUM_DEVICES. + */ +static int vivid_probe(struct platform_device *pdev) +{ + const struct font_desc *font = find_font("VGA8x16"); + int ret = 0, i; + + if (font == NULL) { + pr_err("vivid: could not find font\n"); + return -ENODEV; + } + + tpg_set_font(font->data); + + n_devs = clamp_t(unsigned, n_devs, 1, VIVID_MAX_DEVS); + + for (i = 0; i < n_devs; i++) { + ret = vivid_create_instance(pdev, i); + if (ret) { + /* If some instantiations succeeded, keep driver */ + if (i) + ret = 0; + break; + } + } + + if (ret < 0) { + pr_err("vivid: error %d while loading driver\n", ret); + return ret; + } + + /* n_devs will reflect the actual number of allocated devices */ + n_devs = i; + + return ret; +} + +static int vivid_remove(struct platform_device *pdev) +{ + struct vivid_dev *dev; + unsigned int i, j; + + for (i = 0; i < n_devs; i++) { + dev = vivid_devs[i]; + if (!dev) + continue; + + if (dev->disconnect_error) + vivid_reconnect(dev); +#ifdef CONFIG_MEDIA_CONTROLLER + media_device_unregister(&dev->mdev); +#endif + + if (dev->has_vid_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->vid_cap_dev)); + vb2_video_unregister_device(&dev->vid_cap_dev); + } + if (dev->has_vid_out) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->vid_out_dev)); + vb2_video_unregister_device(&dev->vid_out_dev); + } + if (dev->has_vbi_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->vbi_cap_dev)); + vb2_video_unregister_device(&dev->vbi_cap_dev); + } + if (dev->has_vbi_out) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->vbi_out_dev)); + vb2_video_unregister_device(&dev->vbi_out_dev); + } + if (dev->has_sdr_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->sdr_cap_dev)); + vb2_video_unregister_device(&dev->sdr_cap_dev); + } + if (dev->has_radio_rx) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->radio_rx_dev)); + video_unregister_device(&dev->radio_rx_dev); + } + if (dev->has_radio_tx) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->radio_tx_dev)); + video_unregister_device(&dev->radio_tx_dev); + } + if (dev->has_fb) { + v4l2_info(&dev->v4l2_dev, "unregistering fb%d\n", + dev->fb_info.node); + unregister_framebuffer(&dev->fb_info); + vivid_fb_release_buffers(dev); + } + if (dev->has_meta_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->meta_cap_dev)); + vb2_video_unregister_device(&dev->meta_cap_dev); + } + if (dev->has_meta_out) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->meta_out_dev)); + vb2_video_unregister_device(&dev->meta_out_dev); + } + if (dev->has_touch_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->touch_cap_dev)); + vb2_video_unregister_device(&dev->touch_cap_dev); + } + cec_unregister_adapter(dev->cec_rx_adap); + for (j = 0; j < MAX_OUTPUTS; j++) + cec_unregister_adapter(dev->cec_tx_adap[j]); + if (dev->kthread_cec) + kthread_stop(dev->kthread_cec); + v4l2_device_put(&dev->v4l2_dev); + vivid_devs[i] = NULL; + } + return 0; +} + +static void vivid_pdev_release(struct device *dev) +{ +} + +static struct platform_device vivid_pdev = { + .name = "vivid", + .dev.release = vivid_pdev_release, +}; + +static struct platform_driver vivid_pdrv = { + .probe = vivid_probe, + .remove = vivid_remove, + .driver = { + .name = "vivid", + }, +}; + +static int __init vivid_init(void) +{ + int ret; + + ret = platform_device_register(&vivid_pdev); + if (ret) + return ret; + + ret = platform_driver_register(&vivid_pdrv); + if (ret) + platform_device_unregister(&vivid_pdev); + + return ret; +} + +static void __exit vivid_exit(void) +{ + platform_driver_unregister(&vivid_pdrv); + platform_device_unregister(&vivid_pdev); +} + +module_init(vivid_init); +module_exit(vivid_exit); diff --git a/drivers/media/test-drivers/vivid/vivid-core.h b/drivers/media/test-drivers/vivid/vivid-core.h new file mode 100644 index 000000000..473f3598d --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-core.h @@ -0,0 +1,618 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-core.h - core datastructures + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_CORE_H_ +#define _VIVID_CORE_H_ + +#include <linux/fb.h> +#include <linux/workqueue.h> +#include <media/cec.h> +#include <media/videobuf2-v4l2.h> +#include <media/v4l2-device.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-ctrls.h> +#include <media/tpg/v4l2-tpg.h> +#include "vivid-rds-gen.h" +#include "vivid-vbi-gen.h" + +#define dprintk(dev, level, fmt, arg...) \ + v4l2_dbg(level, vivid_debug, &dev->v4l2_dev, fmt, ## arg) + +/* The maximum number of clip rectangles */ +#define MAX_CLIPS 16 +/* The maximum number of inputs */ +#define MAX_INPUTS 16 +/* The maximum number of outputs */ +#define MAX_OUTPUTS 16 +/* The maximum up or down scaling factor is 4 */ +#define MAX_ZOOM 4 +/* The maximum image width/height are set to 4K DMT */ +#define MAX_WIDTH 4096 +#define MAX_HEIGHT 2160 +/* The minimum image width/height */ +#define MIN_WIDTH 16 +#define MIN_HEIGHT MIN_WIDTH +/* Pixel Array control divider */ +#define PIXEL_ARRAY_DIV MIN_WIDTH +/* The data_offset of plane 0 for the multiplanar formats */ +#define PLANE0_DATA_OFFSET 128 + +/* The supported TV frequency range in MHz */ +#define MIN_TV_FREQ (44U * 16U) +#define MAX_TV_FREQ (958U * 16U) + +/* The number of samples returned in every SDR buffer */ +#define SDR_CAP_SAMPLES_PER_BUF 0x4000 + +/* used by the threads to know when to resync internal counters */ +#define JIFFIES_PER_DAY (3600U * 24U * HZ) +#define JIFFIES_RESYNC (JIFFIES_PER_DAY * (0xf0000000U / JIFFIES_PER_DAY)) + +extern const struct v4l2_rect vivid_min_rect; +extern const struct v4l2_rect vivid_max_rect; +extern unsigned vivid_debug; + +struct vivid_fmt { + u32 fourcc; /* v4l2 format id */ + enum tgp_color_enc color_enc; + bool can_do_overlay; + u8 vdownsampling[TPG_MAX_PLANES]; + u32 alpha_mask; + u8 planes; + u8 buffers; + u32 data_offset[TPG_MAX_PLANES]; + u32 bit_depth[TPG_MAX_PLANES]; +}; + +extern struct vivid_fmt vivid_formats[]; + +/* buffer for one video frame */ +struct vivid_buffer { + /* common v4l buffer stuff -- must be first */ + struct vb2_v4l2_buffer vb; + struct list_head list; +}; + +enum vivid_input { + WEBCAM, + TV, + SVID, + HDMI, +}; + +enum vivid_signal_mode { + CURRENT_DV_TIMINGS, + CURRENT_STD = CURRENT_DV_TIMINGS, + NO_SIGNAL, + NO_LOCK, + OUT_OF_RANGE, + SELECTED_DV_TIMINGS, + SELECTED_STD = SELECTED_DV_TIMINGS, + CYCLE_DV_TIMINGS, + CYCLE_STD = CYCLE_DV_TIMINGS, + CUSTOM_DV_TIMINGS, +}; + +enum vivid_colorspace { + VIVID_CS_170M, + VIVID_CS_709, + VIVID_CS_SRGB, + VIVID_CS_OPRGB, + VIVID_CS_2020, + VIVID_CS_DCI_P3, + VIVID_CS_240M, + VIVID_CS_SYS_M, + VIVID_CS_SYS_BG, +}; + +#define VIVID_INVALID_SIGNAL(mode) \ + ((mode) == NO_SIGNAL || (mode) == NO_LOCK || (mode) == OUT_OF_RANGE) + +struct vivid_cec_xfer { + struct cec_adapter *adap; + u8 msg[CEC_MAX_MSG_SIZE]; + u32 len; + u32 sft; +}; + +struct vivid_dev { + unsigned inst; + struct v4l2_device v4l2_dev; +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device mdev; + struct media_pad vid_cap_pad; + struct media_pad vid_out_pad; + struct media_pad vbi_cap_pad; + struct media_pad vbi_out_pad; + struct media_pad sdr_cap_pad; + struct media_pad meta_cap_pad; + struct media_pad meta_out_pad; + struct media_pad touch_cap_pad; +#endif + struct v4l2_ctrl_handler ctrl_hdl_user_gen; + struct v4l2_ctrl_handler ctrl_hdl_user_vid; + struct v4l2_ctrl_handler ctrl_hdl_user_aud; + struct v4l2_ctrl_handler ctrl_hdl_streaming; + struct v4l2_ctrl_handler ctrl_hdl_sdtv_cap; + struct v4l2_ctrl_handler ctrl_hdl_loop_cap; + struct v4l2_ctrl_handler ctrl_hdl_fb; + struct video_device vid_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_vid_cap; + struct video_device vid_out_dev; + struct v4l2_ctrl_handler ctrl_hdl_vid_out; + struct video_device vbi_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_vbi_cap; + struct video_device vbi_out_dev; + struct v4l2_ctrl_handler ctrl_hdl_vbi_out; + struct video_device radio_rx_dev; + struct v4l2_ctrl_handler ctrl_hdl_radio_rx; + struct video_device radio_tx_dev; + struct v4l2_ctrl_handler ctrl_hdl_radio_tx; + struct video_device sdr_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_sdr_cap; + struct video_device meta_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_meta_cap; + struct video_device meta_out_dev; + struct v4l2_ctrl_handler ctrl_hdl_meta_out; + struct video_device touch_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_touch_cap; + + spinlock_t slock; + struct mutex mutex; + + /* capabilities */ + u32 vid_cap_caps; + u32 vid_out_caps; + u32 vbi_cap_caps; + u32 vbi_out_caps; + u32 sdr_cap_caps; + u32 radio_rx_caps; + u32 radio_tx_caps; + u32 meta_cap_caps; + u32 meta_out_caps; + u32 touch_cap_caps; + + /* supported features */ + bool multiplanar; + unsigned num_inputs; + unsigned int num_hdmi_inputs; + u8 input_type[MAX_INPUTS]; + u8 input_name_counter[MAX_INPUTS]; + unsigned num_outputs; + unsigned int num_hdmi_outputs; + u8 output_type[MAX_OUTPUTS]; + u8 output_name_counter[MAX_OUTPUTS]; + bool has_audio_inputs; + bool has_audio_outputs; + bool has_vid_cap; + bool has_vid_out; + bool has_vbi_cap; + bool has_raw_vbi_cap; + bool has_sliced_vbi_cap; + bool has_vbi_out; + bool has_raw_vbi_out; + bool has_sliced_vbi_out; + bool has_radio_rx; + bool has_radio_tx; + bool has_sdr_cap; + bool has_fb; + bool has_meta_cap; + bool has_meta_out; + bool has_tv_tuner; + bool has_touch_cap; + + bool can_loop_video; + + /* controls */ + struct v4l2_ctrl *brightness; + struct v4l2_ctrl *contrast; + struct v4l2_ctrl *saturation; + struct v4l2_ctrl *hue; + struct { + /* autogain/gain cluster */ + struct v4l2_ctrl *autogain; + struct v4l2_ctrl *gain; + }; + struct v4l2_ctrl *volume; + struct v4l2_ctrl *mute; + struct v4l2_ctrl *alpha; + struct v4l2_ctrl *button; + struct v4l2_ctrl *boolean; + struct v4l2_ctrl *int32; + struct v4l2_ctrl *int64; + struct v4l2_ctrl *menu; + struct v4l2_ctrl *string; + struct v4l2_ctrl *bitmask; + struct v4l2_ctrl *int_menu; + struct v4l2_ctrl *ro_int32; + struct v4l2_ctrl *pixel_array; + struct v4l2_ctrl *test_pattern; + struct v4l2_ctrl *colorspace; + struct v4l2_ctrl *rgb_range_cap; + struct v4l2_ctrl *real_rgb_range_cap; + struct { + /* std_signal_mode/standard cluster */ + struct v4l2_ctrl *ctrl_std_signal_mode; + struct v4l2_ctrl *ctrl_standard; + }; + struct { + /* dv_timings_signal_mode/timings cluster */ + struct v4l2_ctrl *ctrl_dv_timings_signal_mode; + struct v4l2_ctrl *ctrl_dv_timings; + }; + struct v4l2_ctrl *ctrl_display_present; + struct v4l2_ctrl *ctrl_has_crop_cap; + struct v4l2_ctrl *ctrl_has_compose_cap; + struct v4l2_ctrl *ctrl_has_scaler_cap; + struct v4l2_ctrl *ctrl_has_crop_out; + struct v4l2_ctrl *ctrl_has_compose_out; + struct v4l2_ctrl *ctrl_has_scaler_out; + struct v4l2_ctrl *ctrl_tx_mode; + struct v4l2_ctrl *ctrl_tx_rgb_range; + struct v4l2_ctrl *ctrl_tx_edid_present; + struct v4l2_ctrl *ctrl_tx_hotplug; + struct v4l2_ctrl *ctrl_tx_rxsense; + + struct v4l2_ctrl *ctrl_rx_power_present; + + struct v4l2_ctrl *radio_tx_rds_pi; + struct v4l2_ctrl *radio_tx_rds_pty; + struct v4l2_ctrl *radio_tx_rds_mono_stereo; + struct v4l2_ctrl *radio_tx_rds_art_head; + struct v4l2_ctrl *radio_tx_rds_compressed; + struct v4l2_ctrl *radio_tx_rds_dyn_pty; + struct v4l2_ctrl *radio_tx_rds_ta; + struct v4l2_ctrl *radio_tx_rds_tp; + struct v4l2_ctrl *radio_tx_rds_ms; + struct v4l2_ctrl *radio_tx_rds_psname; + struct v4l2_ctrl *radio_tx_rds_radiotext; + + struct v4l2_ctrl *radio_rx_rds_pty; + struct v4l2_ctrl *radio_rx_rds_ta; + struct v4l2_ctrl *radio_rx_rds_tp; + struct v4l2_ctrl *radio_rx_rds_ms; + struct v4l2_ctrl *radio_rx_rds_psname; + struct v4l2_ctrl *radio_rx_rds_radiotext; + + unsigned input_brightness[MAX_INPUTS]; + unsigned osd_mode; + unsigned button_pressed; + bool sensor_hflip; + bool sensor_vflip; + bool hflip; + bool vflip; + bool vbi_cap_interlaced; + bool loop_video; + bool reduced_fps; + + /* Framebuffer */ + unsigned long video_pbase; + void *video_vbase; + u32 video_buffer_size; + int display_width; + int display_height; + int display_byte_stride; + int bits_per_pixel; + int bytes_per_pixel; + struct fb_info fb_info; + struct fb_var_screeninfo fb_defined; + struct fb_fix_screeninfo fb_fix; + + /* Error injection */ + bool disconnect_error; + bool queue_setup_error; + bool buf_prepare_error; + bool start_streaming_error; + bool dqbuf_error; + bool req_validate_error; + bool seq_wrap; + u64 time_wrap; + u64 time_wrap_offset; + unsigned perc_dropped_buffers; + enum vivid_signal_mode std_signal_mode[MAX_INPUTS]; + unsigned int query_std_last[MAX_INPUTS]; + v4l2_std_id query_std[MAX_INPUTS]; + enum tpg_video_aspect std_aspect_ratio[MAX_INPUTS]; + + enum vivid_signal_mode dv_timings_signal_mode[MAX_INPUTS]; + char **query_dv_timings_qmenu; + char *query_dv_timings_qmenu_strings; + unsigned query_dv_timings_size; + unsigned int query_dv_timings_last[MAX_INPUTS]; + unsigned int query_dv_timings[MAX_INPUTS]; + enum tpg_video_aspect dv_timings_aspect_ratio[MAX_INPUTS]; + + /* Input */ + unsigned input; + v4l2_std_id std_cap[MAX_INPUTS]; + struct v4l2_dv_timings dv_timings_cap[MAX_INPUTS]; + int dv_timings_cap_sel[MAX_INPUTS]; + u32 service_set_cap; + struct vivid_vbi_gen_data vbi_gen; + u8 *edid; + unsigned edid_blocks; + unsigned edid_max_blocks; + unsigned webcam_size_idx; + unsigned webcam_ival_idx; + unsigned tv_freq; + unsigned tv_audmode; + unsigned tv_field_cap; + unsigned tv_audio_input; + + u32 power_present; + + /* Capture Overlay */ + struct v4l2_framebuffer fb_cap; + struct v4l2_fh *overlay_cap_owner; + void *fb_vbase_cap; + int overlay_cap_top, overlay_cap_left; + enum v4l2_field overlay_cap_field; + void *bitmap_cap; + struct v4l2_clip clips_cap[MAX_CLIPS]; + struct v4l2_clip try_clips_cap[MAX_CLIPS]; + unsigned clipcount_cap; + + /* Output */ + unsigned output; + v4l2_std_id std_out; + struct v4l2_dv_timings dv_timings_out; + u32 colorspace_out; + u32 ycbcr_enc_out; + u32 hsv_enc_out; + u32 quantization_out; + u32 xfer_func_out; + u32 service_set_out; + unsigned bytesperline_out[TPG_MAX_PLANES]; + unsigned tv_field_out; + unsigned tv_audio_output; + bool vbi_out_have_wss; + u8 vbi_out_wss[2]; + bool vbi_out_have_cc[2]; + u8 vbi_out_cc[2][2]; + bool dvi_d_out; + u8 *scaled_line; + u8 *blended_line; + unsigned cur_scaled_line; + bool display_present[MAX_OUTPUTS]; + + /* Output Overlay */ + void *fb_vbase_out; + bool overlay_out_enabled; + int overlay_out_top, overlay_out_left; + void *bitmap_out; + struct v4l2_clip clips_out[MAX_CLIPS]; + struct v4l2_clip try_clips_out[MAX_CLIPS]; + unsigned clipcount_out; + unsigned fbuf_out_flags; + u32 chromakey_out; + u8 global_alpha_out; + + /* video capture */ + struct tpg_data tpg; + unsigned ms_vid_cap; + bool must_blank[VIDEO_MAX_FRAME]; + + const struct vivid_fmt *fmt_cap; + struct v4l2_fract timeperframe_vid_cap; + enum v4l2_field field_cap; + struct v4l2_rect src_rect; + struct v4l2_rect fmt_cap_rect; + struct v4l2_rect crop_cap; + struct v4l2_rect compose_cap; + struct v4l2_rect crop_bounds_cap; + struct vb2_queue vb_vid_cap_q; + struct list_head vid_cap_active; + struct vb2_queue vb_vbi_cap_q; + struct list_head vbi_cap_active; + struct vb2_queue vb_meta_cap_q; + struct list_head meta_cap_active; + struct vb2_queue vb_touch_cap_q; + struct list_head touch_cap_active; + + /* thread for generating video capture stream */ + struct task_struct *kthread_vid_cap; + unsigned long jiffies_vid_cap; + u64 cap_stream_start; + u64 cap_frame_period; + u64 cap_frame_eof_offset; + u32 cap_seq_offset; + u32 cap_seq_count; + bool cap_seq_resync; + u32 vid_cap_seq_start; + u32 vid_cap_seq_count; + bool vid_cap_streaming; + u32 vbi_cap_seq_start; + u32 vbi_cap_seq_count; + bool vbi_cap_streaming; + u32 meta_cap_seq_start; + u32 meta_cap_seq_count; + bool meta_cap_streaming; + + /* Touch capture */ + struct task_struct *kthread_touch_cap; + unsigned long jiffies_touch_cap; + u64 touch_cap_stream_start; + u32 touch_cap_seq_offset; + bool touch_cap_seq_resync; + u32 touch_cap_seq_start; + u32 touch_cap_seq_count; + u32 touch_cap_with_seq_wrap_count; + bool touch_cap_streaming; + struct v4l2_fract timeperframe_tch_cap; + struct v4l2_pix_format tch_format; + int tch_pat_random; + + /* video output */ + const struct vivid_fmt *fmt_out; + struct v4l2_fract timeperframe_vid_out; + enum v4l2_field field_out; + struct v4l2_rect sink_rect; + struct v4l2_rect fmt_out_rect; + struct v4l2_rect crop_out; + struct v4l2_rect compose_out; + struct v4l2_rect compose_bounds_out; + struct vb2_queue vb_vid_out_q; + struct list_head vid_out_active; + struct vb2_queue vb_vbi_out_q; + struct list_head vbi_out_active; + struct vb2_queue vb_meta_out_q; + struct list_head meta_out_active; + + /* video loop precalculated rectangles */ + + /* + * Intersection between what the output side composes and the capture side + * crops. I.e., what actually needs to be copied from the output buffer to + * the capture buffer. + */ + struct v4l2_rect loop_vid_copy; + /* The part of the output buffer that (after scaling) corresponds to loop_vid_copy. */ + struct v4l2_rect loop_vid_out; + /* The part of the capture buffer that (after scaling) corresponds to loop_vid_copy. */ + struct v4l2_rect loop_vid_cap; + /* + * The intersection of the framebuffer, the overlay output window and + * loop_vid_copy. I.e., the part of the framebuffer that actually should be + * blended with the compose_out rectangle. This uses the framebuffer origin. + */ + struct v4l2_rect loop_fb_copy; + /* The same as loop_fb_copy but with compose_out origin. */ + struct v4l2_rect loop_vid_overlay; + /* + * The part of the capture buffer that (after scaling) corresponds + * to loop_vid_overlay. + */ + struct v4l2_rect loop_vid_overlay_cap; + + /* thread for generating video output stream */ + struct task_struct *kthread_vid_out; + unsigned long jiffies_vid_out; + u32 out_seq_offset; + u32 out_seq_count; + bool out_seq_resync; + u32 vid_out_seq_start; + u32 vid_out_seq_count; + bool vid_out_streaming; + u32 vbi_out_seq_start; + u32 vbi_out_seq_count; + bool vbi_out_streaming; + bool stream_sliced_vbi_out; + u32 meta_out_seq_start; + u32 meta_out_seq_count; + bool meta_out_streaming; + + /* SDR capture */ + struct vb2_queue vb_sdr_cap_q; + struct list_head sdr_cap_active; + u32 sdr_pixelformat; /* v4l2 format id */ + unsigned sdr_buffersize; + unsigned sdr_adc_freq; + unsigned sdr_fm_freq; + unsigned sdr_fm_deviation; + int sdr_fixp_src_phase; + int sdr_fixp_mod_phase; + + bool tstamp_src_is_soe; + bool has_crop_cap; + bool has_compose_cap; + bool has_scaler_cap; + bool has_crop_out; + bool has_compose_out; + bool has_scaler_out; + + /* thread for generating SDR stream */ + struct task_struct *kthread_sdr_cap; + unsigned long jiffies_sdr_cap; + u32 sdr_cap_seq_offset; + u32 sdr_cap_seq_start; + u32 sdr_cap_seq_count; + u32 sdr_cap_with_seq_wrap_count; + bool sdr_cap_seq_resync; + + /* RDS generator */ + struct vivid_rds_gen rds_gen; + + /* Radio receiver */ + unsigned radio_rx_freq; + unsigned radio_rx_audmode; + int radio_rx_sig_qual; + unsigned radio_rx_hw_seek_mode; + bool radio_rx_hw_seek_prog_lim; + bool radio_rx_rds_controls; + bool radio_rx_rds_enabled; + unsigned radio_rx_rds_use_alternates; + unsigned radio_rx_rds_last_block; + struct v4l2_fh *radio_rx_rds_owner; + + /* Radio transmitter */ + unsigned radio_tx_freq; + unsigned radio_tx_subchans; + bool radio_tx_rds_controls; + unsigned radio_tx_rds_last_block; + struct v4l2_fh *radio_tx_rds_owner; + + /* Shared between radio receiver and transmitter */ + bool radio_rds_loop; + ktime_t radio_rds_init_time; + + /* CEC */ + struct cec_adapter *cec_rx_adap; + struct cec_adapter *cec_tx_adap[MAX_OUTPUTS]; + u8 cec_output2bus_map[MAX_OUTPUTS]; + struct task_struct *kthread_cec; + wait_queue_head_t kthread_waitq_cec; + struct vivid_cec_xfer xfers[MAX_OUTPUTS]; + spinlock_t cec_xfers_slock; /* read and write cec messages */ + u32 cec_sft; /* bus signal free time, in bit periods */ + u8 last_initiator; + + /* CEC OSD String */ + char osd[14]; + unsigned long osd_jiffies; + + bool meta_pts; + bool meta_scr; +}; + +static inline bool vivid_is_webcam(const struct vivid_dev *dev) +{ + return dev->input_type[dev->input] == WEBCAM; +} + +static inline bool vivid_is_tv_cap(const struct vivid_dev *dev) +{ + return dev->input_type[dev->input] == TV; +} + +static inline bool vivid_is_svid_cap(const struct vivid_dev *dev) +{ + return dev->input_type[dev->input] == SVID; +} + +static inline bool vivid_is_hdmi_cap(const struct vivid_dev *dev) +{ + return dev->input_type[dev->input] == HDMI; +} + +static inline bool vivid_is_sdtv_cap(const struct vivid_dev *dev) +{ + return vivid_is_tv_cap(dev) || vivid_is_svid_cap(dev); +} + +static inline bool vivid_is_svid_out(const struct vivid_dev *dev) +{ + return dev->output_type[dev->output] == SVID; +} + +static inline bool vivid_is_hdmi_out(const struct vivid_dev *dev) +{ + return dev->output_type[dev->output] == HDMI; +} + +bool vivid_validate_fb(const struct v4l2_framebuffer *a); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.c b/drivers/media/test-drivers/vivid/vivid-ctrls.c new file mode 100644 index 000000000..92b1a7598 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c @@ -0,0 +1,2002 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-ctrls.c - control support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include <media/v4l2-event.h> +#include <media/v4l2-common.h> + +#include "vivid-core.h" +#include "vivid-vid-cap.h" +#include "vivid-vid-out.h" +#include "vivid-vid-common.h" +#include "vivid-radio-common.h" +#include "vivid-osd.h" +#include "vivid-ctrls.h" +#include "vivid-cec.h" + +#define VIVID_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000) +#define VIVID_CID_BUTTON (VIVID_CID_CUSTOM_BASE + 0) +#define VIVID_CID_BOOLEAN (VIVID_CID_CUSTOM_BASE + 1) +#define VIVID_CID_INTEGER (VIVID_CID_CUSTOM_BASE + 2) +#define VIVID_CID_INTEGER64 (VIVID_CID_CUSTOM_BASE + 3) +#define VIVID_CID_MENU (VIVID_CID_CUSTOM_BASE + 4) +#define VIVID_CID_STRING (VIVID_CID_CUSTOM_BASE + 5) +#define VIVID_CID_BITMASK (VIVID_CID_CUSTOM_BASE + 6) +#define VIVID_CID_INTMENU (VIVID_CID_CUSTOM_BASE + 7) +#define VIVID_CID_U32_ARRAY (VIVID_CID_CUSTOM_BASE + 8) +#define VIVID_CID_U16_MATRIX (VIVID_CID_CUSTOM_BASE + 9) +#define VIVID_CID_U8_4D_ARRAY (VIVID_CID_CUSTOM_BASE + 10) +#define VIVID_CID_AREA (VIVID_CID_CUSTOM_BASE + 11) +#define VIVID_CID_RO_INTEGER (VIVID_CID_CUSTOM_BASE + 12) +#define VIVID_CID_U32_DYN_ARRAY (VIVID_CID_CUSTOM_BASE + 13) +#define VIVID_CID_U8_PIXEL_ARRAY (VIVID_CID_CUSTOM_BASE + 14) + +#define VIVID_CID_VIVID_BASE (0x00f00000 | 0xf000) +#define VIVID_CID_VIVID_CLASS (0x00f00000 | 1) +#define VIVID_CID_TEST_PATTERN (VIVID_CID_VIVID_BASE + 0) +#define VIVID_CID_OSD_TEXT_MODE (VIVID_CID_VIVID_BASE + 1) +#define VIVID_CID_HOR_MOVEMENT (VIVID_CID_VIVID_BASE + 2) +#define VIVID_CID_VERT_MOVEMENT (VIVID_CID_VIVID_BASE + 3) +#define VIVID_CID_SHOW_BORDER (VIVID_CID_VIVID_BASE + 4) +#define VIVID_CID_SHOW_SQUARE (VIVID_CID_VIVID_BASE + 5) +#define VIVID_CID_INSERT_SAV (VIVID_CID_VIVID_BASE + 6) +#define VIVID_CID_INSERT_EAV (VIVID_CID_VIVID_BASE + 7) +#define VIVID_CID_VBI_CAP_INTERLACED (VIVID_CID_VIVID_BASE + 8) +#define VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND (VIVID_CID_VIVID_BASE + 9) + +#define VIVID_CID_HFLIP (VIVID_CID_VIVID_BASE + 20) +#define VIVID_CID_VFLIP (VIVID_CID_VIVID_BASE + 21) +#define VIVID_CID_STD_ASPECT_RATIO (VIVID_CID_VIVID_BASE + 22) +#define VIVID_CID_DV_TIMINGS_ASPECT_RATIO (VIVID_CID_VIVID_BASE + 23) +#define VIVID_CID_TSTAMP_SRC (VIVID_CID_VIVID_BASE + 24) +#define VIVID_CID_COLORSPACE (VIVID_CID_VIVID_BASE + 25) +#define VIVID_CID_XFER_FUNC (VIVID_CID_VIVID_BASE + 26) +#define VIVID_CID_YCBCR_ENC (VIVID_CID_VIVID_BASE + 27) +#define VIVID_CID_QUANTIZATION (VIVID_CID_VIVID_BASE + 28) +#define VIVID_CID_LIMITED_RGB_RANGE (VIVID_CID_VIVID_BASE + 29) +#define VIVID_CID_ALPHA_MODE (VIVID_CID_VIVID_BASE + 30) +#define VIVID_CID_HAS_CROP_CAP (VIVID_CID_VIVID_BASE + 31) +#define VIVID_CID_HAS_COMPOSE_CAP (VIVID_CID_VIVID_BASE + 32) +#define VIVID_CID_HAS_SCALER_CAP (VIVID_CID_VIVID_BASE + 33) +#define VIVID_CID_HAS_CROP_OUT (VIVID_CID_VIVID_BASE + 34) +#define VIVID_CID_HAS_COMPOSE_OUT (VIVID_CID_VIVID_BASE + 35) +#define VIVID_CID_HAS_SCALER_OUT (VIVID_CID_VIVID_BASE + 36) +#define VIVID_CID_LOOP_VIDEO (VIVID_CID_VIVID_BASE + 37) +#define VIVID_CID_SEQ_WRAP (VIVID_CID_VIVID_BASE + 38) +#define VIVID_CID_TIME_WRAP (VIVID_CID_VIVID_BASE + 39) +#define VIVID_CID_MAX_EDID_BLOCKS (VIVID_CID_VIVID_BASE + 40) +#define VIVID_CID_PERCENTAGE_FILL (VIVID_CID_VIVID_BASE + 41) +#define VIVID_CID_REDUCED_FPS (VIVID_CID_VIVID_BASE + 42) +#define VIVID_CID_HSV_ENC (VIVID_CID_VIVID_BASE + 43) +#define VIVID_CID_DISPLAY_PRESENT (VIVID_CID_VIVID_BASE + 44) + +#define VIVID_CID_STD_SIGNAL_MODE (VIVID_CID_VIVID_BASE + 60) +#define VIVID_CID_STANDARD (VIVID_CID_VIVID_BASE + 61) +#define VIVID_CID_DV_TIMINGS_SIGNAL_MODE (VIVID_CID_VIVID_BASE + 62) +#define VIVID_CID_DV_TIMINGS (VIVID_CID_VIVID_BASE + 63) +#define VIVID_CID_PERC_DROPPED (VIVID_CID_VIVID_BASE + 64) +#define VIVID_CID_DISCONNECT (VIVID_CID_VIVID_BASE + 65) +#define VIVID_CID_DQBUF_ERROR (VIVID_CID_VIVID_BASE + 66) +#define VIVID_CID_QUEUE_SETUP_ERROR (VIVID_CID_VIVID_BASE + 67) +#define VIVID_CID_BUF_PREPARE_ERROR (VIVID_CID_VIVID_BASE + 68) +#define VIVID_CID_START_STR_ERROR (VIVID_CID_VIVID_BASE + 69) +#define VIVID_CID_QUEUE_ERROR (VIVID_CID_VIVID_BASE + 70) +#define VIVID_CID_CLEAR_FB (VIVID_CID_VIVID_BASE + 71) +#define VIVID_CID_REQ_VALIDATE_ERROR (VIVID_CID_VIVID_BASE + 72) + +#define VIVID_CID_RADIO_SEEK_MODE (VIVID_CID_VIVID_BASE + 90) +#define VIVID_CID_RADIO_SEEK_PROG_LIM (VIVID_CID_VIVID_BASE + 91) +#define VIVID_CID_RADIO_RX_RDS_RBDS (VIVID_CID_VIVID_BASE + 92) +#define VIVID_CID_RADIO_RX_RDS_BLOCKIO (VIVID_CID_VIVID_BASE + 93) + +#define VIVID_CID_RADIO_TX_RDS_BLOCKIO (VIVID_CID_VIVID_BASE + 94) + +#define VIVID_CID_SDR_CAP_FM_DEVIATION (VIVID_CID_VIVID_BASE + 110) + +#define VIVID_CID_META_CAP_GENERATE_PTS (VIVID_CID_VIVID_BASE + 111) +#define VIVID_CID_META_CAP_GENERATE_SCR (VIVID_CID_VIVID_BASE + 112) + +/* General User Controls */ + +static void vivid_unregister_dev(bool valid, struct video_device *vdev) +{ + if (!valid) + return; + clear_bit(V4L2_FL_REGISTERED, &vdev->flags); + v4l2_event_wake_all(vdev); +} + +static int vivid_user_gen_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_gen); + + switch (ctrl->id) { + case VIVID_CID_DISCONNECT: + v4l2_info(&dev->v4l2_dev, "disconnect\n"); + dev->disconnect_error = true; + vivid_unregister_dev(dev->has_vid_cap, &dev->vid_cap_dev); + vivid_unregister_dev(dev->has_vid_out, &dev->vid_out_dev); + vivid_unregister_dev(dev->has_vbi_cap, &dev->vbi_cap_dev); + vivid_unregister_dev(dev->has_vbi_out, &dev->vbi_out_dev); + vivid_unregister_dev(dev->has_radio_rx, &dev->radio_rx_dev); + vivid_unregister_dev(dev->has_radio_tx, &dev->radio_tx_dev); + vivid_unregister_dev(dev->has_sdr_cap, &dev->sdr_cap_dev); + vivid_unregister_dev(dev->has_meta_cap, &dev->meta_cap_dev); + vivid_unregister_dev(dev->has_meta_out, &dev->meta_out_dev); + vivid_unregister_dev(dev->has_touch_cap, &dev->touch_cap_dev); + break; + case VIVID_CID_BUTTON: + dev->button_pressed = 30; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_user_gen_ctrl_ops = { + .s_ctrl = vivid_user_gen_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_button = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_BUTTON, + .name = "Button", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_boolean = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_BOOLEAN, + .name = "Boolean", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .min = 0, + .max = 1, + .step = 1, + .def = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_int32 = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_INTEGER, + .name = "Integer 32 Bits", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 0xffffffff80000000ULL, + .max = 0x7fffffff, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_int64 = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_INTEGER64, + .name = "Integer 64 Bits", + .type = V4L2_CTRL_TYPE_INTEGER64, + .min = 0x8000000000000000ULL, + .max = 0x7fffffffffffffffLL, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_u32_array = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_U32_ARRAY, + .name = "U32 1 Element Array", + .type = V4L2_CTRL_TYPE_U32, + .def = 0x18, + .min = 0x10, + .max = 0x20000, + .step = 1, + .dims = { 1 }, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_u32_dyn_array = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_U32_DYN_ARRAY, + .name = "U32 Dynamic Array", + .type = V4L2_CTRL_TYPE_U32, + .flags = V4L2_CTRL_FLAG_DYNAMIC_ARRAY, + .def = 50, + .min = 10, + .max = 90, + .step = 1, + .dims = { 100 }, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_u16_matrix = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_U16_MATRIX, + .name = "U16 8x16 Matrix", + .type = V4L2_CTRL_TYPE_U16, + .def = 0x18, + .min = 0x10, + .max = 0x2000, + .step = 1, + .dims = { 8, 16 }, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_u8_4d_array = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_U8_4D_ARRAY, + .name = "U8 2x3x4x5 Array", + .type = V4L2_CTRL_TYPE_U8, + .def = 0x18, + .min = 0x10, + .max = 0x20, + .step = 1, + .dims = { 2, 3, 4, 5 }, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_u8_pixel_array = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_U8_PIXEL_ARRAY, + .name = "U8 Pixel Array", + .type = V4L2_CTRL_TYPE_U8, + .def = 0x80, + .min = 0x00, + .max = 0xff, + .step = 1, + .dims = { 640 / PIXEL_ARRAY_DIV, 360 / PIXEL_ARRAY_DIV }, +}; + +static const char * const vivid_ctrl_menu_strings[] = { + "Menu Item 0 (Skipped)", + "Menu Item 1", + "Menu Item 2 (Skipped)", + "Menu Item 3", + "Menu Item 4", + "Menu Item 5 (Skipped)", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_menu = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_MENU, + .name = "Menu", + .type = V4L2_CTRL_TYPE_MENU, + .min = 1, + .max = 4, + .def = 3, + .menu_skip_mask = 0x04, + .qmenu = vivid_ctrl_menu_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_string = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_STRING, + .name = "String", + .type = V4L2_CTRL_TYPE_STRING, + .min = 2, + .max = 4, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_bitmask = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_BITMASK, + .name = "Bitmask", + .type = V4L2_CTRL_TYPE_BITMASK, + .def = 0x80002000, + .min = 0, + .max = 0x80402010, + .step = 0, +}; + +static const s64 vivid_ctrl_int_menu_values[] = { + 1, 1, 2, 3, 5, 8, 13, 21, 42, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_int_menu = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_INTMENU, + .name = "Integer Menu", + .type = V4L2_CTRL_TYPE_INTEGER_MENU, + .min = 1, + .max = 8, + .def = 4, + .menu_skip_mask = 0x02, + .qmenu_int = vivid_ctrl_int_menu_values, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_disconnect = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_DISCONNECT, + .name = "Disconnect", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_area area = { + .width = 1000, + .height = 2000, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_area = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_AREA, + .name = "Area", + .type = V4L2_CTRL_TYPE_AREA, + .p_def.p_const = &area, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_ro_int32 = { + .ops = &vivid_user_gen_ctrl_ops, + .id = VIVID_CID_RO_INTEGER, + .name = "Read-Only Integer 32 Bits", + .type = V4L2_CTRL_TYPE_INTEGER, + .flags = V4L2_CTRL_FLAG_READ_ONLY, + .min = 0, + .max = 255, + .step = 1, +}; + +/* Framebuffer Controls */ + +static int vivid_fb_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, + struct vivid_dev, ctrl_hdl_fb); + + switch (ctrl->id) { + case VIVID_CID_CLEAR_FB: + vivid_clear_fb(dev); + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_fb_ctrl_ops = { + .s_ctrl = vivid_fb_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_clear_fb = { + .ops = &vivid_fb_ctrl_ops, + .id = VIVID_CID_CLEAR_FB, + .name = "Clear Framebuffer", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + + +/* Video User Controls */ + +static int vivid_user_vid_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_vid); + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + dev->gain->val = (jiffies_to_msecs(jiffies) / 1000) & 0xff; + break; + } + return 0; +} + +static int vivid_user_vid_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_user_vid); + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + dev->input_brightness[dev->input] = ctrl->val - dev->input * 128; + tpg_s_brightness(&dev->tpg, dev->input_brightness[dev->input]); + break; + case V4L2_CID_CONTRAST: + tpg_s_contrast(&dev->tpg, ctrl->val); + break; + case V4L2_CID_SATURATION: + tpg_s_saturation(&dev->tpg, ctrl->val); + break; + case V4L2_CID_HUE: + tpg_s_hue(&dev->tpg, ctrl->val); + break; + case V4L2_CID_HFLIP: + dev->hflip = ctrl->val; + tpg_s_hflip(&dev->tpg, dev->sensor_hflip ^ dev->hflip); + break; + case V4L2_CID_VFLIP: + dev->vflip = ctrl->val; + tpg_s_vflip(&dev->tpg, dev->sensor_vflip ^ dev->vflip); + break; + case V4L2_CID_ALPHA_COMPONENT: + tpg_s_alpha_component(&dev->tpg, ctrl->val); + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_user_vid_ctrl_ops = { + .g_volatile_ctrl = vivid_user_vid_g_volatile_ctrl, + .s_ctrl = vivid_user_vid_s_ctrl, +}; + + +/* Video Capture Controls */ + +static int vivid_vid_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + static const u32 colorspaces[] = { + V4L2_COLORSPACE_SMPTE170M, + V4L2_COLORSPACE_REC709, + V4L2_COLORSPACE_SRGB, + V4L2_COLORSPACE_OPRGB, + V4L2_COLORSPACE_BT2020, + V4L2_COLORSPACE_DCI_P3, + V4L2_COLORSPACE_SMPTE240M, + V4L2_COLORSPACE_470_SYSTEM_M, + V4L2_COLORSPACE_470_SYSTEM_BG, + }; + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vid_cap); + unsigned int i, j; + + switch (ctrl->id) { + case VIVID_CID_TEST_PATTERN: + vivid_update_quality(dev); + tpg_s_pattern(&dev->tpg, ctrl->val); + break; + case VIVID_CID_COLORSPACE: + tpg_s_colorspace(&dev->tpg, colorspaces[ctrl->val]); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + vivid_send_source_change(dev, WEBCAM); + break; + case VIVID_CID_XFER_FUNC: + tpg_s_xfer_func(&dev->tpg, ctrl->val); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + vivid_send_source_change(dev, WEBCAM); + break; + case VIVID_CID_YCBCR_ENC: + tpg_s_ycbcr_enc(&dev->tpg, ctrl->val); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + vivid_send_source_change(dev, WEBCAM); + break; + case VIVID_CID_HSV_ENC: + tpg_s_hsv_enc(&dev->tpg, ctrl->val ? V4L2_HSV_ENC_256 : + V4L2_HSV_ENC_180); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + vivid_send_source_change(dev, WEBCAM); + break; + case VIVID_CID_QUANTIZATION: + tpg_s_quantization(&dev->tpg, ctrl->val); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + vivid_send_source_change(dev, WEBCAM); + break; + case V4L2_CID_DV_RX_RGB_RANGE: + if (!vivid_is_hdmi_cap(dev)) + break; + tpg_s_rgb_range(&dev->tpg, ctrl->val); + break; + case VIVID_CID_LIMITED_RGB_RANGE: + tpg_s_real_rgb_range(&dev->tpg, ctrl->val ? + V4L2_DV_RGB_RANGE_LIMITED : V4L2_DV_RGB_RANGE_FULL); + break; + case VIVID_CID_ALPHA_MODE: + tpg_s_alpha_mode(&dev->tpg, ctrl->val); + break; + case VIVID_CID_HOR_MOVEMENT: + tpg_s_mv_hor_mode(&dev->tpg, ctrl->val); + break; + case VIVID_CID_VERT_MOVEMENT: + tpg_s_mv_vert_mode(&dev->tpg, ctrl->val); + break; + case VIVID_CID_OSD_TEXT_MODE: + dev->osd_mode = ctrl->val; + break; + case VIVID_CID_PERCENTAGE_FILL: + tpg_s_perc_fill(&dev->tpg, ctrl->val); + for (i = 0; i < VIDEO_MAX_FRAME; i++) + dev->must_blank[i] = ctrl->val < 100; + break; + case VIVID_CID_INSERT_SAV: + tpg_s_insert_sav(&dev->tpg, ctrl->val); + break; + case VIVID_CID_INSERT_EAV: + tpg_s_insert_eav(&dev->tpg, ctrl->val); + break; + case VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND: + tpg_s_insert_hdmi_video_guard_band(&dev->tpg, ctrl->val); + break; + case VIVID_CID_HFLIP: + dev->sensor_hflip = ctrl->val; + tpg_s_hflip(&dev->tpg, dev->sensor_hflip ^ dev->hflip); + break; + case VIVID_CID_VFLIP: + dev->sensor_vflip = ctrl->val; + tpg_s_vflip(&dev->tpg, dev->sensor_vflip ^ dev->vflip); + break; + case VIVID_CID_REDUCED_FPS: + dev->reduced_fps = ctrl->val; + vivid_update_format_cap(dev, true); + break; + case VIVID_CID_HAS_CROP_CAP: + dev->has_crop_cap = ctrl->val; + vivid_update_format_cap(dev, true); + break; + case VIVID_CID_HAS_COMPOSE_CAP: + dev->has_compose_cap = ctrl->val; + vivid_update_format_cap(dev, true); + break; + case VIVID_CID_HAS_SCALER_CAP: + dev->has_scaler_cap = ctrl->val; + vivid_update_format_cap(dev, true); + break; + case VIVID_CID_SHOW_BORDER: + tpg_s_show_border(&dev->tpg, ctrl->val); + break; + case VIVID_CID_SHOW_SQUARE: + tpg_s_show_square(&dev->tpg, ctrl->val); + break; + case VIVID_CID_STD_ASPECT_RATIO: + dev->std_aspect_ratio[dev->input] = ctrl->val; + tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev)); + break; + case VIVID_CID_DV_TIMINGS_SIGNAL_MODE: + dev->dv_timings_signal_mode[dev->input] = + dev->ctrl_dv_timings_signal_mode->val; + dev->query_dv_timings[dev->input] = dev->ctrl_dv_timings->val; + + dev->power_present = 0; + for (i = 0, j = 0; + i < ARRAY_SIZE(dev->dv_timings_signal_mode); + i++) + if (dev->input_type[i] == HDMI) { + if (dev->dv_timings_signal_mode[i] != NO_SIGNAL) + dev->power_present |= (1 << j); + j++; + } + __v4l2_ctrl_s_ctrl(dev->ctrl_rx_power_present, + dev->power_present); + + v4l2_ctrl_activate(dev->ctrl_dv_timings, + dev->dv_timings_signal_mode[dev->input] == + SELECTED_DV_TIMINGS); + + vivid_update_quality(dev); + vivid_send_source_change(dev, HDMI); + break; + case VIVID_CID_DV_TIMINGS_ASPECT_RATIO: + dev->dv_timings_aspect_ratio[dev->input] = ctrl->val; + tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev)); + break; + case VIVID_CID_TSTAMP_SRC: + dev->tstamp_src_is_soe = ctrl->val; + dev->vb_vid_cap_q.timestamp_flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; + if (dev->tstamp_src_is_soe) + dev->vb_vid_cap_q.timestamp_flags |= V4L2_BUF_FLAG_TSTAMP_SRC_SOE; + break; + case VIVID_CID_MAX_EDID_BLOCKS: + dev->edid_max_blocks = ctrl->val; + if (dev->edid_blocks > dev->edid_max_blocks) + dev->edid_blocks = dev->edid_max_blocks; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_vid_cap_ctrl_ops = { + .s_ctrl = vivid_vid_cap_s_ctrl, +}; + +static const char * const vivid_ctrl_hor_movement_strings[] = { + "Move Left Fast", + "Move Left", + "Move Left Slow", + "No Movement", + "Move Right Slow", + "Move Right", + "Move Right Fast", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_hor_movement = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HOR_MOVEMENT, + .name = "Horizontal Movement", + .type = V4L2_CTRL_TYPE_MENU, + .max = TPG_MOVE_POS_FAST, + .def = TPG_MOVE_NONE, + .qmenu = vivid_ctrl_hor_movement_strings, +}; + +static const char * const vivid_ctrl_vert_movement_strings[] = { + "Move Up Fast", + "Move Up", + "Move Up Slow", + "No Movement", + "Move Down Slow", + "Move Down", + "Move Down Fast", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_vert_movement = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_VERT_MOVEMENT, + .name = "Vertical Movement", + .type = V4L2_CTRL_TYPE_MENU, + .max = TPG_MOVE_POS_FAST, + .def = TPG_MOVE_NONE, + .qmenu = vivid_ctrl_vert_movement_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_show_border = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_SHOW_BORDER, + .name = "Show Border", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_show_square = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_SHOW_SQUARE, + .name = "Show Square", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const char * const vivid_ctrl_osd_mode_strings[] = { + "All", + "Counters Only", + "None", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_osd_mode = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_OSD_TEXT_MODE, + .name = "OSD Text Mode", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_osd_mode_strings) - 2, + .qmenu = vivid_ctrl_osd_mode_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_perc_fill = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_PERCENTAGE_FILL, + .name = "Fill Percentage of Frame", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 0, + .max = 100, + .def = 100, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_insert_sav = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_INSERT_SAV, + .name = "Insert SAV Code in Image", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_insert_eav = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_INSERT_EAV, + .name = "Insert EAV Code in Image", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_insert_hdmi_video_guard_band = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_INSERT_HDMI_VIDEO_GUARD_BAND, + .name = "Insert Video Guard Band", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_hflip = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HFLIP, + .name = "Sensor Flipped Horizontally", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_vflip = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_VFLIP, + .name = "Sensor Flipped Vertically", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_reduced_fps = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_REDUCED_FPS, + .name = "Reduced Framerate", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_crop_cap = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HAS_CROP_CAP, + .name = "Enable Capture Cropping", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_compose_cap = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HAS_COMPOSE_CAP, + .name = "Enable Capture Composing", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_scaler_cap = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HAS_SCALER_CAP, + .name = "Enable Capture Scaler", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const char * const vivid_ctrl_tstamp_src_strings[] = { + "End of Frame", + "Start of Exposure", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_tstamp_src = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_TSTAMP_SRC, + .name = "Timestamp Source", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_tstamp_src_strings) - 2, + .qmenu = vivid_ctrl_tstamp_src_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_std_aspect_ratio = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_STD_ASPECT_RATIO, + .name = "Standard Aspect Ratio", + .type = V4L2_CTRL_TYPE_MENU, + .min = 1, + .max = 4, + .def = 1, + .qmenu = tpg_aspect_strings, +}; + +static const char * const vivid_ctrl_dv_timings_signal_mode_strings[] = { + "Current DV Timings", + "No Signal", + "No Lock", + "Out of Range", + "Selected DV Timings", + "Cycle Through All DV Timings", + "Custom DV Timings", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_dv_timings_signal_mode = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_DV_TIMINGS_SIGNAL_MODE, + .name = "DV Timings Signal Mode", + .type = V4L2_CTRL_TYPE_MENU, + .max = 5, + .qmenu = vivid_ctrl_dv_timings_signal_mode_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_dv_timings_aspect_ratio = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_DV_TIMINGS_ASPECT_RATIO, + .name = "DV Timings Aspect Ratio", + .type = V4L2_CTRL_TYPE_MENU, + .max = 3, + .qmenu = tpg_aspect_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_max_edid_blocks = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_MAX_EDID_BLOCKS, + .name = "Maximum EDID Blocks", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 1, + .max = 256, + .def = 2, + .step = 1, +}; + +static const char * const vivid_ctrl_colorspace_strings[] = { + "SMPTE 170M", + "Rec. 709", + "sRGB", + "opRGB", + "BT.2020", + "DCI-P3", + "SMPTE 240M", + "470 System M", + "470 System BG", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_colorspace = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_COLORSPACE, + .name = "Colorspace", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_colorspace_strings) - 2, + .def = 2, + .qmenu = vivid_ctrl_colorspace_strings, +}; + +static const char * const vivid_ctrl_xfer_func_strings[] = { + "Default", + "Rec. 709", + "sRGB", + "opRGB", + "SMPTE 240M", + "None", + "DCI-P3", + "SMPTE 2084", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_xfer_func = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_XFER_FUNC, + .name = "Transfer Function", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_xfer_func_strings) - 2, + .qmenu = vivid_ctrl_xfer_func_strings, +}; + +static const char * const vivid_ctrl_ycbcr_enc_strings[] = { + "Default", + "ITU-R 601", + "Rec. 709", + "xvYCC 601", + "xvYCC 709", + "", + "BT.2020", + "BT.2020 Constant Luminance", + "SMPTE 240M", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_ycbcr_enc = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_YCBCR_ENC, + .name = "Y'CbCr Encoding", + .type = V4L2_CTRL_TYPE_MENU, + .menu_skip_mask = 1 << 5, + .max = ARRAY_SIZE(vivid_ctrl_ycbcr_enc_strings) - 2, + .qmenu = vivid_ctrl_ycbcr_enc_strings, +}; + +static const char * const vivid_ctrl_hsv_enc_strings[] = { + "Hue 0-179", + "Hue 0-256", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_hsv_enc = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_HSV_ENC, + .name = "HSV Encoding", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_hsv_enc_strings) - 2, + .qmenu = vivid_ctrl_hsv_enc_strings, +}; + +static const char * const vivid_ctrl_quantization_strings[] = { + "Default", + "Full Range", + "Limited Range", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_quantization = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_QUANTIZATION, + .name = "Quantization", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_quantization_strings) - 2, + .qmenu = vivid_ctrl_quantization_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_alpha_mode = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_ALPHA_MODE, + .name = "Apply Alpha To Red Only", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_limited_rgb_range = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_LIMITED_RGB_RANGE, + .name = "Limited RGB Range (16-235)", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + + +/* Video Loop Control */ + +static int vivid_loop_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_loop_cap); + + switch (ctrl->id) { + case VIVID_CID_LOOP_VIDEO: + dev->loop_video = ctrl->val; + vivid_update_quality(dev); + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_loop_cap_ctrl_ops = { + .s_ctrl = vivid_loop_cap_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_loop_video = { + .ops = &vivid_loop_cap_ctrl_ops, + .id = VIVID_CID_LOOP_VIDEO, + .name = "Loop Video", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + + +/* VBI Capture Control */ + +static int vivid_vbi_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vbi_cap); + + switch (ctrl->id) { + case VIVID_CID_VBI_CAP_INTERLACED: + dev->vbi_cap_interlaced = ctrl->val; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_vbi_cap_ctrl_ops = { + .s_ctrl = vivid_vbi_cap_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_vbi_cap_interlaced = { + .ops = &vivid_vbi_cap_ctrl_ops, + .id = VIVID_CID_VBI_CAP_INTERLACED, + .name = "Interlaced VBI Format", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + + +/* Video Output Controls */ + +static int vivid_vid_out_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_vid_out); + struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt; + u32 display_present = 0; + unsigned int i, j, bus_idx; + + switch (ctrl->id) { + case VIVID_CID_HAS_CROP_OUT: + dev->has_crop_out = ctrl->val; + vivid_update_format_out(dev); + break; + case VIVID_CID_HAS_COMPOSE_OUT: + dev->has_compose_out = ctrl->val; + vivid_update_format_out(dev); + break; + case VIVID_CID_HAS_SCALER_OUT: + dev->has_scaler_out = ctrl->val; + vivid_update_format_out(dev); + break; + case V4L2_CID_DV_TX_MODE: + dev->dvi_d_out = ctrl->val == V4L2_DV_TX_MODE_DVI_D; + if (!vivid_is_hdmi_out(dev)) + break; + if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) { + if (bt->width == 720 && bt->height <= 576) + dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M; + else + dev->colorspace_out = V4L2_COLORSPACE_REC709; + dev->quantization_out = V4L2_QUANTIZATION_DEFAULT; + } else { + dev->colorspace_out = V4L2_COLORSPACE_SRGB; + dev->quantization_out = dev->dvi_d_out ? + V4L2_QUANTIZATION_LIM_RANGE : + V4L2_QUANTIZATION_DEFAULT; + } + if (dev->loop_video) + vivid_send_source_change(dev, HDMI); + break; + case VIVID_CID_DISPLAY_PRESENT: + if (dev->output_type[dev->output] != HDMI) + break; + + dev->display_present[dev->output] = ctrl->val; + for (i = 0, j = 0; i < dev->num_outputs; i++) + if (dev->output_type[i] == HDMI) + display_present |= + dev->display_present[i] << j++; + + __v4l2_ctrl_s_ctrl(dev->ctrl_tx_rxsense, display_present); + + if (dev->edid_blocks) { + __v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, + display_present); + __v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, + display_present); + } + + bus_idx = dev->cec_output2bus_map[dev->output]; + if (!dev->cec_tx_adap[bus_idx]) + break; + + if (ctrl->val && dev->edid_blocks) + cec_s_phys_addr(dev->cec_tx_adap[bus_idx], + dev->cec_tx_adap[bus_idx]->phys_addr, + false); + else + cec_phys_addr_invalidate(dev->cec_tx_adap[bus_idx]); + + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_vid_out_ctrl_ops = { + .s_ctrl = vivid_vid_out_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_crop_out = { + .ops = &vivid_vid_out_ctrl_ops, + .id = VIVID_CID_HAS_CROP_OUT, + .name = "Enable Output Cropping", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_compose_out = { + .ops = &vivid_vid_out_ctrl_ops, + .id = VIVID_CID_HAS_COMPOSE_OUT, + .name = "Enable Output Composing", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_has_scaler_out = { + .ops = &vivid_vid_out_ctrl_ops, + .id = VIVID_CID_HAS_SCALER_OUT, + .name = "Enable Output Scaler", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_display_present = { + .ops = &vivid_vid_out_ctrl_ops, + .id = VIVID_CID_DISPLAY_PRESENT, + .name = "Display Present", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +/* Streaming Controls */ + +static int vivid_streaming_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_streaming); + + switch (ctrl->id) { + case VIVID_CID_DQBUF_ERROR: + dev->dqbuf_error = true; + break; + case VIVID_CID_PERC_DROPPED: + dev->perc_dropped_buffers = ctrl->val; + break; + case VIVID_CID_QUEUE_SETUP_ERROR: + dev->queue_setup_error = true; + break; + case VIVID_CID_BUF_PREPARE_ERROR: + dev->buf_prepare_error = true; + break; + case VIVID_CID_START_STR_ERROR: + dev->start_streaming_error = true; + break; + case VIVID_CID_REQ_VALIDATE_ERROR: + dev->req_validate_error = true; + break; + case VIVID_CID_QUEUE_ERROR: + if (vb2_start_streaming_called(&dev->vb_vid_cap_q)) + vb2_queue_error(&dev->vb_vid_cap_q); + if (vb2_start_streaming_called(&dev->vb_vbi_cap_q)) + vb2_queue_error(&dev->vb_vbi_cap_q); + if (vb2_start_streaming_called(&dev->vb_vid_out_q)) + vb2_queue_error(&dev->vb_vid_out_q); + if (vb2_start_streaming_called(&dev->vb_vbi_out_q)) + vb2_queue_error(&dev->vb_vbi_out_q); + if (vb2_start_streaming_called(&dev->vb_sdr_cap_q)) + vb2_queue_error(&dev->vb_sdr_cap_q); + break; + case VIVID_CID_SEQ_WRAP: + dev->seq_wrap = ctrl->val; + break; + case VIVID_CID_TIME_WRAP: + dev->time_wrap = ctrl->val; + if (dev->time_wrap == 1) + dev->time_wrap = (1ULL << 63) - NSEC_PER_SEC * 16ULL; + else if (dev->time_wrap == 2) + dev->time_wrap = ((1ULL << 31) - 16) * NSEC_PER_SEC; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_streaming_ctrl_ops = { + .s_ctrl = vivid_streaming_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_dqbuf_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_DQBUF_ERROR, + .name = "Inject V4L2_BUF_FLAG_ERROR", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_perc_dropped = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_PERC_DROPPED, + .name = "Percentage of Dropped Buffers", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 0, + .max = 100, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_queue_setup_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_QUEUE_SETUP_ERROR, + .name = "Inject VIDIOC_REQBUFS Error", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_buf_prepare_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_BUF_PREPARE_ERROR, + .name = "Inject VIDIOC_QBUF Error", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_start_streaming_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_START_STR_ERROR, + .name = "Inject VIDIOC_STREAMON Error", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_queue_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_QUEUE_ERROR, + .name = "Inject Fatal Streaming Error", + .type = V4L2_CTRL_TYPE_BUTTON, +}; + +#ifdef CONFIG_MEDIA_CONTROLLER +static const struct v4l2_ctrl_config vivid_ctrl_req_validate_error = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_REQ_VALIDATE_ERROR, + .name = "Inject req_validate() Error", + .type = V4L2_CTRL_TYPE_BUTTON, +}; +#endif + +static const struct v4l2_ctrl_config vivid_ctrl_seq_wrap = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_SEQ_WRAP, + .name = "Wrap Sequence Number", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const char * const vivid_ctrl_time_wrap_strings[] = { + "None", + "64 Bit", + "32 Bit", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_time_wrap = { + .ops = &vivid_streaming_ctrl_ops, + .id = VIVID_CID_TIME_WRAP, + .name = "Wrap Timestamp", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_time_wrap_strings) - 2, + .qmenu = vivid_ctrl_time_wrap_strings, +}; + + +/* SDTV Capture Controls */ + +static int vivid_sdtv_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_sdtv_cap); + + switch (ctrl->id) { + case VIVID_CID_STD_SIGNAL_MODE: + dev->std_signal_mode[dev->input] = + dev->ctrl_std_signal_mode->val; + if (dev->std_signal_mode[dev->input] == SELECTED_STD) + dev->query_std[dev->input] = + vivid_standard[dev->ctrl_standard->val]; + v4l2_ctrl_activate(dev->ctrl_standard, + dev->std_signal_mode[dev->input] == + SELECTED_STD); + vivid_update_quality(dev); + vivid_send_source_change(dev, TV); + vivid_send_source_change(dev, SVID); + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_sdtv_cap_ctrl_ops = { + .s_ctrl = vivid_sdtv_cap_s_ctrl, +}; + +static const char * const vivid_ctrl_std_signal_mode_strings[] = { + "Current Standard", + "No Signal", + "No Lock", + "", + "Selected Standard", + "Cycle Through All Standards", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_std_signal_mode = { + .ops = &vivid_sdtv_cap_ctrl_ops, + .id = VIVID_CID_STD_SIGNAL_MODE, + .name = "Standard Signal Mode", + .type = V4L2_CTRL_TYPE_MENU, + .max = ARRAY_SIZE(vivid_ctrl_std_signal_mode_strings) - 2, + .menu_skip_mask = 1 << 3, + .qmenu = vivid_ctrl_std_signal_mode_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_standard = { + .ops = &vivid_sdtv_cap_ctrl_ops, + .id = VIVID_CID_STANDARD, + .name = "Standard", + .type = V4L2_CTRL_TYPE_MENU, + .max = 14, + .qmenu = vivid_ctrl_standard_strings, +}; + + + +/* Radio Receiver Controls */ + +static int vivid_radio_rx_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_radio_rx); + + switch (ctrl->id) { + case VIVID_CID_RADIO_SEEK_MODE: + dev->radio_rx_hw_seek_mode = ctrl->val; + break; + case VIVID_CID_RADIO_SEEK_PROG_LIM: + dev->radio_rx_hw_seek_prog_lim = ctrl->val; + break; + case VIVID_CID_RADIO_RX_RDS_RBDS: + dev->rds_gen.use_rbds = ctrl->val; + break; + case VIVID_CID_RADIO_RX_RDS_BLOCKIO: + dev->radio_rx_rds_controls = ctrl->val; + dev->radio_rx_caps &= ~V4L2_CAP_READWRITE; + dev->radio_rx_rds_use_alternates = false; + if (!dev->radio_rx_rds_controls) { + dev->radio_rx_caps |= V4L2_CAP_READWRITE; + __v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, 0); + __v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, 0); + __v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, 0); + __v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, 0); + __v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, ""); + __v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, ""); + } + v4l2_ctrl_activate(dev->radio_rx_rds_pty, dev->radio_rx_rds_controls); + v4l2_ctrl_activate(dev->radio_rx_rds_psname, dev->radio_rx_rds_controls); + v4l2_ctrl_activate(dev->radio_rx_rds_radiotext, dev->radio_rx_rds_controls); + v4l2_ctrl_activate(dev->radio_rx_rds_ta, dev->radio_rx_rds_controls); + v4l2_ctrl_activate(dev->radio_rx_rds_tp, dev->radio_rx_rds_controls); + v4l2_ctrl_activate(dev->radio_rx_rds_ms, dev->radio_rx_rds_controls); + dev->radio_rx_dev.device_caps = dev->radio_rx_caps; + break; + case V4L2_CID_RDS_RECEPTION: + dev->radio_rx_rds_enabled = ctrl->val; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_radio_rx_ctrl_ops = { + .s_ctrl = vivid_radio_rx_s_ctrl, +}; + +static const char * const vivid_ctrl_radio_rds_mode_strings[] = { + "Block I/O", + "Controls", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_radio_rx_rds_blockio = { + .ops = &vivid_radio_rx_ctrl_ops, + .id = VIVID_CID_RADIO_RX_RDS_BLOCKIO, + .name = "RDS Rx I/O Mode", + .type = V4L2_CTRL_TYPE_MENU, + .qmenu = vivid_ctrl_radio_rds_mode_strings, + .max = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_radio_rx_rds_rbds = { + .ops = &vivid_radio_rx_ctrl_ops, + .id = VIVID_CID_RADIO_RX_RDS_RBDS, + .name = "Generate RBDS Instead of RDS", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + +static const char * const vivid_ctrl_radio_hw_seek_mode_strings[] = { + "Bounded", + "Wrap Around", + "Both", + NULL, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_radio_hw_seek_mode = { + .ops = &vivid_radio_rx_ctrl_ops, + .id = VIVID_CID_RADIO_SEEK_MODE, + .name = "Radio HW Seek Mode", + .type = V4L2_CTRL_TYPE_MENU, + .max = 2, + .qmenu = vivid_ctrl_radio_hw_seek_mode_strings, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_radio_hw_seek_prog_lim = { + .ops = &vivid_radio_rx_ctrl_ops, + .id = VIVID_CID_RADIO_SEEK_PROG_LIM, + .name = "Radio Programmable HW Seek", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .step = 1, +}; + + +/* Radio Transmitter Controls */ + +static int vivid_radio_tx_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_radio_tx); + + switch (ctrl->id) { + case VIVID_CID_RADIO_TX_RDS_BLOCKIO: + dev->radio_tx_rds_controls = ctrl->val; + dev->radio_tx_caps &= ~V4L2_CAP_READWRITE; + if (!dev->radio_tx_rds_controls) + dev->radio_tx_caps |= V4L2_CAP_READWRITE; + dev->radio_tx_dev.device_caps = dev->radio_tx_caps; + break; + case V4L2_CID_RDS_TX_PTY: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, ctrl->val); + break; + case V4L2_CID_RDS_TX_PS_NAME: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, ctrl->p_new.p_char); + break; + case V4L2_CID_RDS_TX_RADIO_TEXT: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, ctrl->p_new.p_char); + break; + case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, ctrl->val); + break; + case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, ctrl->val); + break; + case V4L2_CID_RDS_TX_MUSIC_SPEECH: + if (dev->radio_rx_rds_controls) + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, ctrl->val); + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_radio_tx_ctrl_ops = { + .s_ctrl = vivid_radio_tx_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_radio_tx_rds_blockio = { + .ops = &vivid_radio_tx_ctrl_ops, + .id = VIVID_CID_RADIO_TX_RDS_BLOCKIO, + .name = "RDS Tx I/O Mode", + .type = V4L2_CTRL_TYPE_MENU, + .qmenu = vivid_ctrl_radio_rds_mode_strings, + .max = 1, + .def = 1, +}; + + +/* SDR Capture Controls */ + +static int vivid_sdr_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, ctrl_hdl_sdr_cap); + + switch (ctrl->id) { + case VIVID_CID_SDR_CAP_FM_DEVIATION: + dev->sdr_fm_deviation = ctrl->val; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_sdr_cap_ctrl_ops = { + .s_ctrl = vivid_sdr_cap_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_sdr_cap_fm_deviation = { + .ops = &vivid_sdr_cap_ctrl_ops, + .id = VIVID_CID_SDR_CAP_FM_DEVIATION, + .name = "FM Deviation", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = 100, + .max = 200000, + .def = 75000, + .step = 1, +}; + +/* Metadata Capture Control */ + +static int vivid_meta_cap_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vivid_dev *dev = container_of(ctrl->handler, struct vivid_dev, + ctrl_hdl_meta_cap); + + switch (ctrl->id) { + case VIVID_CID_META_CAP_GENERATE_PTS: + dev->meta_pts = ctrl->val; + break; + case VIVID_CID_META_CAP_GENERATE_SCR: + dev->meta_scr = ctrl->val; + break; + } + return 0; +} + +static const struct v4l2_ctrl_ops vivid_meta_cap_ctrl_ops = { + .s_ctrl = vivid_meta_cap_s_ctrl, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_meta_has_pts = { + .ops = &vivid_meta_cap_ctrl_ops, + .id = VIVID_CID_META_CAP_GENERATE_PTS, + .name = "Generate PTS", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_meta_has_src_clk = { + .ops = &vivid_meta_cap_ctrl_ops, + .id = VIVID_CID_META_CAP_GENERATE_SCR, + .name = "Generate SCR", + .type = V4L2_CTRL_TYPE_BOOLEAN, + .max = 1, + .def = 1, + .step = 1, +}; + +static const struct v4l2_ctrl_config vivid_ctrl_class = { + .ops = &vivid_user_gen_ctrl_ops, + .flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY, + .id = VIVID_CID_VIVID_CLASS, + .name = "Vivid Controls", + .type = V4L2_CTRL_TYPE_CTRL_CLASS, +}; + +int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap, + bool show_ccs_out, bool no_error_inj, + bool has_sdtv, bool has_hdmi) +{ + struct v4l2_ctrl_handler *hdl_user_gen = &dev->ctrl_hdl_user_gen; + struct v4l2_ctrl_handler *hdl_user_vid = &dev->ctrl_hdl_user_vid; + struct v4l2_ctrl_handler *hdl_user_aud = &dev->ctrl_hdl_user_aud; + struct v4l2_ctrl_handler *hdl_streaming = &dev->ctrl_hdl_streaming; + struct v4l2_ctrl_handler *hdl_sdtv_cap = &dev->ctrl_hdl_sdtv_cap; + struct v4l2_ctrl_handler *hdl_loop_cap = &dev->ctrl_hdl_loop_cap; + struct v4l2_ctrl_handler *hdl_fb = &dev->ctrl_hdl_fb; + struct v4l2_ctrl_handler *hdl_vid_cap = &dev->ctrl_hdl_vid_cap; + struct v4l2_ctrl_handler *hdl_vid_out = &dev->ctrl_hdl_vid_out; + struct v4l2_ctrl_handler *hdl_vbi_cap = &dev->ctrl_hdl_vbi_cap; + struct v4l2_ctrl_handler *hdl_vbi_out = &dev->ctrl_hdl_vbi_out; + struct v4l2_ctrl_handler *hdl_radio_rx = &dev->ctrl_hdl_radio_rx; + struct v4l2_ctrl_handler *hdl_radio_tx = &dev->ctrl_hdl_radio_tx; + struct v4l2_ctrl_handler *hdl_sdr_cap = &dev->ctrl_hdl_sdr_cap; + struct v4l2_ctrl_handler *hdl_meta_cap = &dev->ctrl_hdl_meta_cap; + struct v4l2_ctrl_handler *hdl_meta_out = &dev->ctrl_hdl_meta_out; + struct v4l2_ctrl_handler *hdl_tch_cap = &dev->ctrl_hdl_touch_cap; + + struct v4l2_ctrl_config vivid_ctrl_dv_timings = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_DV_TIMINGS, + .name = "DV Timings", + .type = V4L2_CTRL_TYPE_MENU, + }; + int i; + + v4l2_ctrl_handler_init(hdl_user_gen, 10); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_user_vid, 9); + v4l2_ctrl_new_custom(hdl_user_vid, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_user_aud, 2); + v4l2_ctrl_new_custom(hdl_user_aud, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_streaming, 8); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_sdtv_cap, 2); + v4l2_ctrl_new_custom(hdl_sdtv_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_loop_cap, 1); + v4l2_ctrl_new_custom(hdl_loop_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_fb, 1); + v4l2_ctrl_new_custom(hdl_fb, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_vid_cap, 55); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_vid_out, 26); + if (!no_error_inj || dev->has_fb || dev->num_hdmi_outputs) + v4l2_ctrl_new_custom(hdl_vid_out, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_vbi_cap, 21); + v4l2_ctrl_new_custom(hdl_vbi_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_vbi_out, 19); + if (!no_error_inj) + v4l2_ctrl_new_custom(hdl_vbi_out, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_radio_rx, 17); + v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_radio_tx, 17); + v4l2_ctrl_new_custom(hdl_radio_tx, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_sdr_cap, 19); + v4l2_ctrl_new_custom(hdl_sdr_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_meta_cap, 2); + v4l2_ctrl_new_custom(hdl_meta_cap, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_meta_out, 2); + v4l2_ctrl_new_custom(hdl_meta_out, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_tch_cap, 2); + v4l2_ctrl_new_custom(hdl_tch_cap, &vivid_ctrl_class, NULL); + + /* User Controls */ + dev->volume = v4l2_ctrl_new_std(hdl_user_aud, NULL, + V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200); + dev->mute = v4l2_ctrl_new_std(hdl_user_aud, NULL, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); + if (dev->has_vid_cap) { + dev->brightness = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + for (i = 0; i < MAX_INPUTS; i++) + dev->input_brightness[i] = 128; + dev->contrast = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 128); + dev->saturation = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 128); + dev->hue = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_HUE, -128, 128, 1, 0); + v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + dev->autogain = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + dev->gain = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_GAIN, 0, 255, 1, 100); + dev->alpha = v4l2_ctrl_new_std(hdl_user_vid, &vivid_user_vid_ctrl_ops, + V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0); + } + dev->button = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_button, NULL); + dev->int32 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int32, NULL); + dev->int64 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int64, NULL); + dev->boolean = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_boolean, NULL); + dev->menu = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_menu, NULL); + dev->string = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_string, NULL); + dev->bitmask = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_bitmask, NULL); + dev->int_menu = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int_menu, NULL); + dev->ro_int32 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_ro_int32, NULL); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_area, NULL); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_array, NULL); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_dyn_array, NULL); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u16_matrix, NULL); + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u8_4d_array, NULL); + dev->pixel_array = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u8_pixel_array, NULL); + + if (dev->has_vid_cap) { + /* Image Processing Controls */ + struct v4l2_ctrl_config vivid_ctrl_test_pattern = { + .ops = &vivid_vid_cap_ctrl_ops, + .id = VIVID_CID_TEST_PATTERN, + .name = "Test Pattern", + .type = V4L2_CTRL_TYPE_MENU, + .max = TPG_PAT_NOISE, + .qmenu = tpg_pattern_strings, + }; + + dev->test_pattern = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_test_pattern, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_perc_fill, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hor_movement, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_vert_movement, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_osd_mode, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_show_border, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_show_square, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hflip, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_vflip, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_sav, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_eav, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_insert_hdmi_video_guard_band, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_reduced_fps, NULL); + if (show_ccs_cap) { + dev->ctrl_has_crop_cap = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_has_crop_cap, NULL); + dev->ctrl_has_compose_cap = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_has_compose_cap, NULL); + dev->ctrl_has_scaler_cap = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_has_scaler_cap, NULL); + } + + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_tstamp_src, NULL); + dev->colorspace = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_colorspace, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_xfer_func, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_ycbcr_enc, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hsv_enc, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_quantization, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_alpha_mode, NULL); + } + + if (dev->has_vid_out && show_ccs_out) { + dev->ctrl_has_crop_out = v4l2_ctrl_new_custom(hdl_vid_out, + &vivid_ctrl_has_crop_out, NULL); + dev->ctrl_has_compose_out = v4l2_ctrl_new_custom(hdl_vid_out, + &vivid_ctrl_has_compose_out, NULL); + dev->ctrl_has_scaler_out = v4l2_ctrl_new_custom(hdl_vid_out, + &vivid_ctrl_has_scaler_out, NULL); + } + + /* + * Testing this driver with v4l2-compliance will trigger the error + * injection controls, and after that nothing will work as expected. + * So we have a module option to drop these error injecting controls + * allowing us to run v4l2_compliance again. + */ + if (!no_error_inj) { + v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_disconnect, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_dqbuf_error, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_perc_dropped, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_queue_setup_error, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_buf_prepare_error, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_start_streaming_error, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_queue_error, NULL); +#ifdef CONFIG_MEDIA_CONTROLLER + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_req_validate_error, NULL); +#endif + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_seq_wrap, NULL); + v4l2_ctrl_new_custom(hdl_streaming, &vivid_ctrl_time_wrap, NULL); + } + + if (has_sdtv && (dev->has_vid_cap || dev->has_vbi_cap)) { + if (dev->has_vid_cap) + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_std_aspect_ratio, NULL); + dev->ctrl_std_signal_mode = v4l2_ctrl_new_custom(hdl_sdtv_cap, + &vivid_ctrl_std_signal_mode, NULL); + dev->ctrl_standard = v4l2_ctrl_new_custom(hdl_sdtv_cap, + &vivid_ctrl_standard, NULL); + if (dev->ctrl_std_signal_mode) + v4l2_ctrl_cluster(2, &dev->ctrl_std_signal_mode); + if (dev->has_raw_vbi_cap) + v4l2_ctrl_new_custom(hdl_vbi_cap, &vivid_ctrl_vbi_cap_interlaced, NULL); + } + + if (dev->num_hdmi_inputs) { + s64 hdmi_input_mask = GENMASK(dev->num_hdmi_inputs - 1, 0); + + dev->ctrl_dv_timings_signal_mode = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_dv_timings_signal_mode, NULL); + + vivid_ctrl_dv_timings.max = dev->query_dv_timings_size - 1; + vivid_ctrl_dv_timings.qmenu = + (const char * const *)dev->query_dv_timings_qmenu; + dev->ctrl_dv_timings = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_dv_timings, NULL); + if (dev->ctrl_dv_timings_signal_mode) + v4l2_ctrl_cluster(2, &dev->ctrl_dv_timings_signal_mode); + + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_dv_timings_aspect_ratio, NULL); + v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_max_edid_blocks, NULL); + dev->real_rgb_range_cap = v4l2_ctrl_new_custom(hdl_vid_cap, + &vivid_ctrl_limited_rgb_range, NULL); + dev->rgb_range_cap = v4l2_ctrl_new_std_menu(hdl_vid_cap, + &vivid_vid_cap_ctrl_ops, + V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, + 0, V4L2_DV_RGB_RANGE_AUTO); + dev->ctrl_rx_power_present = v4l2_ctrl_new_std(hdl_vid_cap, + NULL, V4L2_CID_DV_RX_POWER_PRESENT, 0, hdmi_input_mask, + 0, hdmi_input_mask); + + } + if (dev->num_hdmi_outputs) { + s64 hdmi_output_mask = GENMASK(dev->num_hdmi_outputs - 1, 0); + + /* + * We aren't doing anything with this at the moment, but + * HDMI outputs typically have this controls. + */ + dev->ctrl_tx_rgb_range = v4l2_ctrl_new_std_menu(hdl_vid_out, NULL, + V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, + 0, V4L2_DV_RGB_RANGE_AUTO); + dev->ctrl_tx_mode = v4l2_ctrl_new_std_menu(hdl_vid_out, NULL, + V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI, + 0, V4L2_DV_TX_MODE_HDMI); + dev->ctrl_display_present = v4l2_ctrl_new_custom(hdl_vid_out, + &vivid_ctrl_display_present, NULL); + dev->ctrl_tx_hotplug = v4l2_ctrl_new_std(hdl_vid_out, + NULL, V4L2_CID_DV_TX_HOTPLUG, 0, hdmi_output_mask, + 0, hdmi_output_mask); + dev->ctrl_tx_rxsense = v4l2_ctrl_new_std(hdl_vid_out, + NULL, V4L2_CID_DV_TX_RXSENSE, 0, hdmi_output_mask, + 0, hdmi_output_mask); + dev->ctrl_tx_edid_present = v4l2_ctrl_new_std(hdl_vid_out, + NULL, V4L2_CID_DV_TX_EDID_PRESENT, 0, hdmi_output_mask, + 0, hdmi_output_mask); + } + if ((dev->has_vid_cap && dev->has_vid_out) || + (dev->has_vbi_cap && dev->has_vbi_out)) + v4l2_ctrl_new_custom(hdl_loop_cap, &vivid_ctrl_loop_video, NULL); + + if (dev->has_fb) + v4l2_ctrl_new_custom(hdl_fb, &vivid_ctrl_clear_fb, NULL); + + if (dev->has_radio_rx) { + v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_hw_seek_mode, NULL); + v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_hw_seek_prog_lim, NULL); + v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_rx_rds_blockio, NULL); + v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_rx_rds_rbds, NULL); + v4l2_ctrl_new_std(hdl_radio_rx, &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RECEPTION, 0, 1, 1, 1); + dev->radio_rx_rds_pty = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_PTY, 0, 31, 1, 0); + dev->radio_rx_rds_psname = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_PS_NAME, 0, 8, 8, 0); + dev->radio_rx_rds_radiotext = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_RADIO_TEXT, 0, 64, 64, 0); + dev->radio_rx_rds_ta = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0); + dev->radio_rx_rds_tp = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_TRAFFIC_PROGRAM, 0, 1, 1, 0); + dev->radio_rx_rds_ms = v4l2_ctrl_new_std(hdl_radio_rx, + &vivid_radio_rx_ctrl_ops, + V4L2_CID_RDS_RX_MUSIC_SPEECH, 0, 1, 1, 1); + } + if (dev->has_radio_tx) { + v4l2_ctrl_new_custom(hdl_radio_tx, + &vivid_ctrl_radio_tx_rds_blockio, NULL); + dev->radio_tx_rds_pi = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, 0x8088); + dev->radio_tx_rds_pty = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_PTY, 0, 31, 1, 3); + dev->radio_tx_rds_psname = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_PS_NAME, 0, 8, 8, 0); + if (dev->radio_tx_rds_psname) + v4l2_ctrl_s_ctrl_string(dev->radio_tx_rds_psname, "VIVID-TX"); + dev->radio_tx_rds_radiotext = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_RADIO_TEXT, 0, 64 * 2, 64, 0); + if (dev->radio_tx_rds_radiotext) + v4l2_ctrl_s_ctrl_string(dev->radio_tx_rds_radiotext, + "This is a VIVID default Radio Text template text, change at will"); + dev->radio_tx_rds_mono_stereo = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_MONO_STEREO, 0, 1, 1, 1); + dev->radio_tx_rds_art_head = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_ARTIFICIAL_HEAD, 0, 1, 1, 0); + dev->radio_tx_rds_compressed = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_COMPRESSED, 0, 1, 1, 0); + dev->radio_tx_rds_dyn_pty = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_DYNAMIC_PTY, 0, 1, 1, 0); + dev->radio_tx_rds_ta = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0); + dev->radio_tx_rds_tp = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_TRAFFIC_PROGRAM, 0, 1, 1, 1); + dev->radio_tx_rds_ms = v4l2_ctrl_new_std(hdl_radio_tx, + &vivid_radio_tx_ctrl_ops, + V4L2_CID_RDS_TX_MUSIC_SPEECH, 0, 1, 1, 1); + } + if (dev->has_sdr_cap) { + v4l2_ctrl_new_custom(hdl_sdr_cap, + &vivid_ctrl_sdr_cap_fm_deviation, NULL); + } + if (dev->has_meta_cap) { + v4l2_ctrl_new_custom(hdl_meta_cap, + &vivid_ctrl_meta_has_pts, NULL); + v4l2_ctrl_new_custom(hdl_meta_cap, + &vivid_ctrl_meta_has_src_clk, NULL); + } + + if (hdl_user_gen->error) + return hdl_user_gen->error; + if (hdl_user_vid->error) + return hdl_user_vid->error; + if (hdl_user_aud->error) + return hdl_user_aud->error; + if (hdl_streaming->error) + return hdl_streaming->error; + if (hdl_sdr_cap->error) + return hdl_sdr_cap->error; + if (hdl_loop_cap->error) + return hdl_loop_cap->error; + + if (dev->autogain) + v4l2_ctrl_auto_cluster(2, &dev->autogain, 0, true); + + if (dev->has_vid_cap) { + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_vid, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_user_aud, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_streaming, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_sdtv_cap, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_loop_cap, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_cap, hdl_fb, NULL, false); + if (hdl_vid_cap->error) + return hdl_vid_cap->error; + dev->vid_cap_dev.ctrl_handler = hdl_vid_cap; + } + if (dev->has_vid_out) { + v4l2_ctrl_add_handler(hdl_vid_out, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_out, hdl_user_aud, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_out, hdl_streaming, NULL, false); + v4l2_ctrl_add_handler(hdl_vid_out, hdl_fb, NULL, false); + if (hdl_vid_out->error) + return hdl_vid_out->error; + dev->vid_out_dev.ctrl_handler = hdl_vid_out; + } + if (dev->has_vbi_cap) { + v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_streaming, NULL, false); + v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_sdtv_cap, NULL, false); + v4l2_ctrl_add_handler(hdl_vbi_cap, hdl_loop_cap, NULL, false); + if (hdl_vbi_cap->error) + return hdl_vbi_cap->error; + dev->vbi_cap_dev.ctrl_handler = hdl_vbi_cap; + } + if (dev->has_vbi_out) { + v4l2_ctrl_add_handler(hdl_vbi_out, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_vbi_out, hdl_streaming, NULL, false); + if (hdl_vbi_out->error) + return hdl_vbi_out->error; + dev->vbi_out_dev.ctrl_handler = hdl_vbi_out; + } + if (dev->has_radio_rx) { + v4l2_ctrl_add_handler(hdl_radio_rx, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_radio_rx, hdl_user_aud, NULL, false); + if (hdl_radio_rx->error) + return hdl_radio_rx->error; + dev->radio_rx_dev.ctrl_handler = hdl_radio_rx; + } + if (dev->has_radio_tx) { + v4l2_ctrl_add_handler(hdl_radio_tx, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_radio_tx, hdl_user_aud, NULL, false); + if (hdl_radio_tx->error) + return hdl_radio_tx->error; + dev->radio_tx_dev.ctrl_handler = hdl_radio_tx; + } + if (dev->has_sdr_cap) { + v4l2_ctrl_add_handler(hdl_sdr_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_sdr_cap, hdl_streaming, NULL, false); + if (hdl_sdr_cap->error) + return hdl_sdr_cap->error; + dev->sdr_cap_dev.ctrl_handler = hdl_sdr_cap; + } + if (dev->has_meta_cap) { + v4l2_ctrl_add_handler(hdl_meta_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_meta_cap, hdl_streaming, NULL, false); + if (hdl_meta_cap->error) + return hdl_meta_cap->error; + dev->meta_cap_dev.ctrl_handler = hdl_meta_cap; + } + if (dev->has_meta_out) { + v4l2_ctrl_add_handler(hdl_meta_out, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_meta_out, hdl_streaming, NULL, false); + if (hdl_meta_out->error) + return hdl_meta_out->error; + dev->meta_out_dev.ctrl_handler = hdl_meta_out; + } + if (dev->has_touch_cap) { + v4l2_ctrl_add_handler(hdl_tch_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_tch_cap, hdl_streaming, NULL, false); + if (hdl_tch_cap->error) + return hdl_tch_cap->error; + dev->touch_cap_dev.ctrl_handler = hdl_tch_cap; + } + return 0; +} + +void vivid_free_controls(struct vivid_dev *dev) +{ + v4l2_ctrl_handler_free(&dev->ctrl_hdl_vid_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_vid_out); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_vbi_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_vbi_out); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_radio_rx); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_radio_tx); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_sdr_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_gen); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_vid); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_user_aud); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_streaming); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_sdtv_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_loop_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_fb); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_cap); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_out); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_touch_cap); +} diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.h b/drivers/media/test-drivers/vivid/vivid-ctrls.h new file mode 100644 index 000000000..6fad5f5d0 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-ctrls.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-ctrls.h - control support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_CTRLS_H_ +#define _VIVID_CTRLS_H_ + +enum vivid_hw_seek_modes { + VIVID_HW_SEEK_BOUNDED, + VIVID_HW_SEEK_WRAP, + VIVID_HW_SEEK_BOTH, +}; + +int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap, + bool show_ccs_out, bool no_error_inj, + bool has_sdtv, bool has_hdmi); +void vivid_free_controls(struct vivid_dev *dev); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-cap.c b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c new file mode 100644 index 000000000..690daada7 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c @@ -0,0 +1,1015 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-kthread-cap.h - video/vbi capture thread support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/font.h> +#include <linux/mutex.h> +#include <linux/videodev2.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/random.h> +#include <linux/v4l2-dv-timings.h> +#include <linux/jiffies.h> +#include <asm/div64.h> +#include <media/videobuf2-vmalloc.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> +#include <media/v4l2-rect.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-vid-cap.h" +#include "vivid-vid-out.h" +#include "vivid-radio-common.h" +#include "vivid-radio-rx.h" +#include "vivid-radio-tx.h" +#include "vivid-sdr-cap.h" +#include "vivid-vbi-cap.h" +#include "vivid-vbi-out.h" +#include "vivid-osd.h" +#include "vivid-ctrls.h" +#include "vivid-kthread-cap.h" +#include "vivid-meta-cap.h" + +static inline v4l2_std_id vivid_get_std_cap(const struct vivid_dev *dev) +{ + if (vivid_is_sdtv_cap(dev)) + return dev->std_cap[dev->input]; + return 0; +} + +static void copy_pix(struct vivid_dev *dev, int win_y, int win_x, + u16 *cap, const u16 *osd) +{ + u16 out; + int left = dev->overlay_out_left; + int top = dev->overlay_out_top; + int fb_x = win_x + left; + int fb_y = win_y + top; + int i; + + out = *cap; + *cap = *osd; + if (dev->bitmap_out) { + const u8 *p = dev->bitmap_out; + unsigned stride = (dev->compose_out.width + 7) / 8; + + win_x -= dev->compose_out.left; + win_y -= dev->compose_out.top; + if (!(p[stride * win_y + win_x / 8] & (1 << (win_x & 7)))) + return; + } + + for (i = 0; i < dev->clipcount_out; i++) { + struct v4l2_rect *r = &dev->clips_out[i].c; + + if (fb_y >= r->top && fb_y < r->top + r->height && + fb_x >= r->left && fb_x < r->left + r->width) + return; + } + if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_CHROMAKEY) && + *osd != dev->chromakey_out) + return; + if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) && + out == dev->chromakey_out) + return; + if (dev->fmt_cap->alpha_mask) { + if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) && + dev->global_alpha_out) + return; + if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) && + *cap & dev->fmt_cap->alpha_mask) + return; + if ((dev->fbuf_out_flags & V4L2_FBUF_FLAG_LOCAL_INV_ALPHA) && + !(*cap & dev->fmt_cap->alpha_mask)) + return; + } + *cap = out; +} + +static void blend_line(struct vivid_dev *dev, unsigned y_offset, unsigned x_offset, + u8 *vcapbuf, const u8 *vosdbuf, + unsigned width, unsigned pixsize) +{ + unsigned x; + + for (x = 0; x < width; x++, vcapbuf += pixsize, vosdbuf += pixsize) { + copy_pix(dev, y_offset, x_offset + x, + (u16 *)vcapbuf, (const u16 *)vosdbuf); + } +} + +static void scale_line(const u8 *src, u8 *dst, unsigned srcw, unsigned dstw, unsigned twopixsize) +{ + /* Coarse scaling with Bresenham */ + unsigned int_part; + unsigned fract_part; + unsigned src_x = 0; + unsigned error = 0; + unsigned x; + + /* + * We always combine two pixels to prevent color bleed in the packed + * yuv case. + */ + srcw /= 2; + dstw /= 2; + int_part = srcw / dstw; + fract_part = srcw % dstw; + for (x = 0; x < dstw; x++, dst += twopixsize) { + memcpy(dst, src + src_x * twopixsize, twopixsize); + src_x += int_part; + error += fract_part; + if (error >= dstw) { + error -= dstw; + src_x++; + } + } +} + +/* + * Precalculate the rectangles needed to perform video looping: + * + * The nominal pipeline is that the video output buffer is cropped by + * crop_out, scaled to compose_out, overlaid with the output overlay, + * cropped on the capture side by crop_cap and scaled again to the video + * capture buffer using compose_cap. + * + * To keep things efficient we calculate the intersection of compose_out + * and crop_cap (since that's the only part of the video that will + * actually end up in the capture buffer), determine which part of the + * video output buffer that is and which part of the video capture buffer + * so we can scale the video straight from the output buffer to the capture + * buffer without any intermediate steps. + * + * If we need to deal with an output overlay, then there is no choice and + * that intermediate step still has to be taken. For the output overlay + * support we calculate the intersection of the framebuffer and the overlay + * window (which may be partially or wholly outside of the framebuffer + * itself) and the intersection of that with loop_vid_copy (i.e. the part of + * the actual looped video that will be overlaid). The result is calculated + * both in framebuffer coordinates (loop_fb_copy) and compose_out coordinates + * (loop_vid_overlay). Finally calculate the part of the capture buffer that + * will receive that overlaid video. + */ +static void vivid_precalc_copy_rects(struct vivid_dev *dev) +{ + /* Framebuffer rectangle */ + struct v4l2_rect r_fb = { + 0, 0, dev->display_width, dev->display_height + }; + /* Overlay window rectangle in framebuffer coordinates */ + struct v4l2_rect r_overlay = { + dev->overlay_out_left, dev->overlay_out_top, + dev->compose_out.width, dev->compose_out.height + }; + + v4l2_rect_intersect(&dev->loop_vid_copy, &dev->crop_cap, &dev->compose_out); + + dev->loop_vid_out = dev->loop_vid_copy; + v4l2_rect_scale(&dev->loop_vid_out, &dev->compose_out, &dev->crop_out); + dev->loop_vid_out.left += dev->crop_out.left; + dev->loop_vid_out.top += dev->crop_out.top; + + dev->loop_vid_cap = dev->loop_vid_copy; + v4l2_rect_scale(&dev->loop_vid_cap, &dev->crop_cap, &dev->compose_cap); + + dprintk(dev, 1, + "loop_vid_copy: %dx%d@%dx%d loop_vid_out: %dx%d@%dx%d loop_vid_cap: %dx%d@%dx%d\n", + dev->loop_vid_copy.width, dev->loop_vid_copy.height, + dev->loop_vid_copy.left, dev->loop_vid_copy.top, + dev->loop_vid_out.width, dev->loop_vid_out.height, + dev->loop_vid_out.left, dev->loop_vid_out.top, + dev->loop_vid_cap.width, dev->loop_vid_cap.height, + dev->loop_vid_cap.left, dev->loop_vid_cap.top); + + v4l2_rect_intersect(&r_overlay, &r_fb, &r_overlay); + + /* shift r_overlay to the same origin as compose_out */ + r_overlay.left += dev->compose_out.left - dev->overlay_out_left; + r_overlay.top += dev->compose_out.top - dev->overlay_out_top; + + v4l2_rect_intersect(&dev->loop_vid_overlay, &r_overlay, &dev->loop_vid_copy); + dev->loop_fb_copy = dev->loop_vid_overlay; + + /* shift dev->loop_fb_copy back again to the fb origin */ + dev->loop_fb_copy.left -= dev->compose_out.left - dev->overlay_out_left; + dev->loop_fb_copy.top -= dev->compose_out.top - dev->overlay_out_top; + + dev->loop_vid_overlay_cap = dev->loop_vid_overlay; + v4l2_rect_scale(&dev->loop_vid_overlay_cap, &dev->crop_cap, &dev->compose_cap); + + dprintk(dev, 1, + "loop_fb_copy: %dx%d@%dx%d loop_vid_overlay: %dx%d@%dx%d loop_vid_overlay_cap: %dx%d@%dx%d\n", + dev->loop_fb_copy.width, dev->loop_fb_copy.height, + dev->loop_fb_copy.left, dev->loop_fb_copy.top, + dev->loop_vid_overlay.width, dev->loop_vid_overlay.height, + dev->loop_vid_overlay.left, dev->loop_vid_overlay.top, + dev->loop_vid_overlay_cap.width, dev->loop_vid_overlay_cap.height, + dev->loop_vid_overlay_cap.left, dev->loop_vid_overlay_cap.top); +} + +static void *plane_vaddr(struct tpg_data *tpg, struct vivid_buffer *buf, + unsigned p, unsigned bpl[TPG_MAX_PLANES], unsigned h) +{ + unsigned i; + void *vbuf; + + if (p == 0 || tpg_g_buffers(tpg) > 1) + return vb2_plane_vaddr(&buf->vb.vb2_buf, p); + vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + for (i = 0; i < p; i++) + vbuf += bpl[i] * h / tpg->vdownsampling[i]; + return vbuf; +} + +static noinline_for_stack int vivid_copy_buffer(struct vivid_dev *dev, unsigned p, + u8 *vcapbuf, struct vivid_buffer *vid_cap_buf) +{ + bool blank = dev->must_blank[vid_cap_buf->vb.vb2_buf.index]; + struct tpg_data *tpg = &dev->tpg; + struct vivid_buffer *vid_out_buf = NULL; + unsigned vdiv = dev->fmt_out->vdownsampling[p]; + unsigned twopixsize = tpg_g_twopixelsize(tpg, p); + unsigned img_width = tpg_hdiv(tpg, p, dev->compose_cap.width); + unsigned img_height = dev->compose_cap.height; + unsigned stride_cap = tpg->bytesperline[p]; + unsigned stride_out = dev->bytesperline_out[p]; + unsigned stride_osd = dev->display_byte_stride; + unsigned hmax = (img_height * tpg->perc_fill) / 100; + u8 *voutbuf; + u8 *vosdbuf = NULL; + unsigned y; + bool blend = dev->bitmap_out || dev->clipcount_out || dev->fbuf_out_flags; + /* Coarse scaling with Bresenham */ + unsigned vid_out_int_part; + unsigned vid_out_fract_part; + unsigned vid_out_y = 0; + unsigned vid_out_error = 0; + unsigned vid_overlay_int_part = 0; + unsigned vid_overlay_fract_part = 0; + unsigned vid_overlay_y = 0; + unsigned vid_overlay_error = 0; + unsigned vid_cap_left = tpg_hdiv(tpg, p, dev->loop_vid_cap.left); + unsigned vid_cap_right; + bool quick; + + vid_out_int_part = dev->loop_vid_out.height / dev->loop_vid_cap.height; + vid_out_fract_part = dev->loop_vid_out.height % dev->loop_vid_cap.height; + + if (!list_empty(&dev->vid_out_active)) + vid_out_buf = list_entry(dev->vid_out_active.next, + struct vivid_buffer, list); + if (vid_out_buf == NULL) + return -ENODATA; + + vid_cap_buf->vb.field = vid_out_buf->vb.field; + + voutbuf = plane_vaddr(tpg, vid_out_buf, p, + dev->bytesperline_out, dev->fmt_out_rect.height); + if (p < dev->fmt_out->buffers) + voutbuf += vid_out_buf->vb.vb2_buf.planes[p].data_offset; + voutbuf += tpg_hdiv(tpg, p, dev->loop_vid_out.left) + + (dev->loop_vid_out.top / vdiv) * stride_out; + vcapbuf += tpg_hdiv(tpg, p, dev->compose_cap.left) + + (dev->compose_cap.top / vdiv) * stride_cap; + + if (dev->loop_vid_copy.width == 0 || dev->loop_vid_copy.height == 0) { + /* + * If there is nothing to copy, then just fill the capture window + * with black. + */ + for (y = 0; y < hmax / vdiv; y++, vcapbuf += stride_cap) + memcpy(vcapbuf, tpg->black_line[p], img_width); + return 0; + } + + if (dev->overlay_out_enabled && + dev->loop_vid_overlay.width && dev->loop_vid_overlay.height) { + vosdbuf = dev->video_vbase; + vosdbuf += (dev->loop_fb_copy.left * twopixsize) / 2 + + dev->loop_fb_copy.top * stride_osd; + vid_overlay_int_part = dev->loop_vid_overlay.height / + dev->loop_vid_overlay_cap.height; + vid_overlay_fract_part = dev->loop_vid_overlay.height % + dev->loop_vid_overlay_cap.height; + } + + vid_cap_right = tpg_hdiv(tpg, p, dev->loop_vid_cap.left + dev->loop_vid_cap.width); + /* quick is true if no video scaling is needed */ + quick = dev->loop_vid_out.width == dev->loop_vid_cap.width; + + dev->cur_scaled_line = dev->loop_vid_out.height; + for (y = 0; y < hmax; y += vdiv, vcapbuf += stride_cap) { + /* osdline is true if this line requires overlay blending */ + bool osdline = vosdbuf && y >= dev->loop_vid_overlay_cap.top && + y < dev->loop_vid_overlay_cap.top + dev->loop_vid_overlay_cap.height; + + /* + * If this line of the capture buffer doesn't get any video, then + * just fill with black. + */ + if (y < dev->loop_vid_cap.top || + y >= dev->loop_vid_cap.top + dev->loop_vid_cap.height) { + memcpy(vcapbuf, tpg->black_line[p], img_width); + continue; + } + + /* fill the left border with black */ + if (dev->loop_vid_cap.left) + memcpy(vcapbuf, tpg->black_line[p], vid_cap_left); + + /* fill the right border with black */ + if (vid_cap_right < img_width) + memcpy(vcapbuf + vid_cap_right, tpg->black_line[p], + img_width - vid_cap_right); + + if (quick && !osdline) { + memcpy(vcapbuf + vid_cap_left, + voutbuf + vid_out_y * stride_out, + tpg_hdiv(tpg, p, dev->loop_vid_cap.width)); + goto update_vid_out_y; + } + if (dev->cur_scaled_line == vid_out_y) { + memcpy(vcapbuf + vid_cap_left, dev->scaled_line, + tpg_hdiv(tpg, p, dev->loop_vid_cap.width)); + goto update_vid_out_y; + } + if (!osdline) { + scale_line(voutbuf + vid_out_y * stride_out, dev->scaled_line, + tpg_hdiv(tpg, p, dev->loop_vid_out.width), + tpg_hdiv(tpg, p, dev->loop_vid_cap.width), + tpg_g_twopixelsize(tpg, p)); + } else { + /* + * Offset in bytes within loop_vid_copy to the start of the + * loop_vid_overlay rectangle. + */ + unsigned offset = + ((dev->loop_vid_overlay.left - dev->loop_vid_copy.left) * + twopixsize) / 2; + u8 *osd = vosdbuf + vid_overlay_y * stride_osd; + + scale_line(voutbuf + vid_out_y * stride_out, dev->blended_line, + dev->loop_vid_out.width, dev->loop_vid_copy.width, + tpg_g_twopixelsize(tpg, p)); + if (blend) + blend_line(dev, vid_overlay_y + dev->loop_vid_overlay.top, + dev->loop_vid_overlay.left, + dev->blended_line + offset, osd, + dev->loop_vid_overlay.width, twopixsize / 2); + else + memcpy(dev->blended_line + offset, + osd, (dev->loop_vid_overlay.width * twopixsize) / 2); + scale_line(dev->blended_line, dev->scaled_line, + dev->loop_vid_copy.width, dev->loop_vid_cap.width, + tpg_g_twopixelsize(tpg, p)); + } + dev->cur_scaled_line = vid_out_y; + memcpy(vcapbuf + vid_cap_left, dev->scaled_line, + tpg_hdiv(tpg, p, dev->loop_vid_cap.width)); + +update_vid_out_y: + if (osdline) { + vid_overlay_y += vid_overlay_int_part; + vid_overlay_error += vid_overlay_fract_part; + if (vid_overlay_error >= dev->loop_vid_overlay_cap.height) { + vid_overlay_error -= dev->loop_vid_overlay_cap.height; + vid_overlay_y++; + } + } + vid_out_y += vid_out_int_part; + vid_out_error += vid_out_fract_part; + if (vid_out_error >= dev->loop_vid_cap.height / vdiv) { + vid_out_error -= dev->loop_vid_cap.height / vdiv; + vid_out_y++; + } + } + + if (!blank) + return 0; + for (; y < img_height; y += vdiv, vcapbuf += stride_cap) + memcpy(vcapbuf, tpg->contrast_line[p], img_width); + return 0; +} + +static void vivid_fillbuff(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + struct tpg_data *tpg = &dev->tpg; + unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1; + unsigned line_height = 16 / factor; + bool is_tv = vivid_is_sdtv_cap(dev); + bool is_60hz = is_tv && (dev->std_cap[dev->input] & V4L2_STD_525_60); + unsigned p; + int line = 1; + u8 *basep[TPG_MAX_PLANES][2]; + unsigned ms; + char str[100]; + s32 gain; + bool is_loop = false; + + if (dev->loop_video && dev->can_loop_video && + ((vivid_is_svid_cap(dev) && + !VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) || + (vivid_is_hdmi_cap(dev) && + !VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])))) + is_loop = true; + + buf->vb.sequence = dev->vid_cap_seq_count; + v4l2_ctrl_s_ctrl(dev->ro_int32, buf->vb.sequence & 0xff); + if (dev->field_cap == V4L2_FIELD_ALTERNATE) { + /* + * 60 Hz standards start with the bottom field, 50 Hz standards + * with the top field. So if the 0-based seq_count is even, + * then the field is TOP for 50 Hz and BOTTOM for 60 Hz + * standards. + */ + buf->vb.field = ((dev->vid_cap_seq_count & 1) ^ is_60hz) ? + V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP; + /* + * The sequence counter counts frames, not fields. So divide + * by two. + */ + buf->vb.sequence /= 2; + } else { + buf->vb.field = dev->field_cap; + } + tpg_s_field(tpg, buf->vb.field, + dev->field_cap == V4L2_FIELD_ALTERNATE); + tpg_s_perc_fill_blank(tpg, dev->must_blank[buf->vb.vb2_buf.index]); + + vivid_precalc_copy_rects(dev); + + for (p = 0; p < tpg_g_planes(tpg); p++) { + void *vbuf = plane_vaddr(tpg, buf, p, + tpg->bytesperline, tpg->buf_height); + + /* + * The first plane of a multiplanar format has a non-zero + * data_offset. This helps testing whether the application + * correctly supports non-zero data offsets. + */ + if (p < tpg_g_buffers(tpg) && dev->fmt_cap->data_offset[p]) { + memset(vbuf, dev->fmt_cap->data_offset[p] & 0xff, + dev->fmt_cap->data_offset[p]); + vbuf += dev->fmt_cap->data_offset[p]; + } + tpg_calc_text_basep(tpg, basep, p, vbuf); + if (!is_loop || vivid_copy_buffer(dev, p, vbuf, buf)) + tpg_fill_plane_buffer(tpg, vivid_get_std_cap(dev), + p, vbuf); + } + dev->must_blank[buf->vb.vb2_buf.index] = false; + + /* Updates stream time, only update at the start of a new frame. */ + if (dev->field_cap != V4L2_FIELD_ALTERNATE || + (dev->vid_cap_seq_count & 1) == 0) + dev->ms_vid_cap = + jiffies_to_msecs(jiffies - dev->jiffies_vid_cap); + + ms = dev->ms_vid_cap; + if (dev->osd_mode <= 1) { + snprintf(str, sizeof(str), " %02d:%02d:%02d:%03d %u%s", + (ms / (60 * 60 * 1000)) % 24, + (ms / (60 * 1000)) % 60, + (ms / 1000) % 60, + ms % 1000, + buf->vb.sequence, + (dev->field_cap == V4L2_FIELD_ALTERNATE) ? + (buf->vb.field == V4L2_FIELD_TOP ? + " top" : " bottom") : ""); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + } + if (dev->osd_mode == 0) { + snprintf(str, sizeof(str), " %dx%d, input %d ", + dev->src_rect.width, dev->src_rect.height, dev->input); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + + gain = v4l2_ctrl_g_ctrl(dev->gain); + mutex_lock(dev->ctrl_hdl_user_vid.lock); + snprintf(str, sizeof(str), + " brightness %3d, contrast %3d, saturation %3d, hue %d ", + dev->brightness->cur.val, + dev->contrast->cur.val, + dev->saturation->cur.val, + dev->hue->cur.val); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + snprintf(str, sizeof(str), + " autogain %d, gain %3d, alpha 0x%02x ", + dev->autogain->cur.val, gain, dev->alpha->cur.val); + mutex_unlock(dev->ctrl_hdl_user_vid.lock); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + mutex_lock(dev->ctrl_hdl_user_aud.lock); + snprintf(str, sizeof(str), + " volume %3d, mute %d ", + dev->volume->cur.val, dev->mute->cur.val); + mutex_unlock(dev->ctrl_hdl_user_aud.lock); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + mutex_lock(dev->ctrl_hdl_user_gen.lock); + snprintf(str, sizeof(str), " int32 %d, ro_int32 %d, int64 %lld, bitmask %08x ", + dev->int32->cur.val, + dev->ro_int32->cur.val, + *dev->int64->p_cur.p_s64, + dev->bitmask->cur.val); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ", + dev->boolean->cur.val, + dev->menu->qmenu[dev->menu->cur.val], + dev->string->p_cur.p_char); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + snprintf(str, sizeof(str), " integer_menu %lld, value %d ", + dev->int_menu->qmenu_int[dev->int_menu->cur.val], + dev->int_menu->cur.val); + mutex_unlock(dev->ctrl_hdl_user_gen.lock); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + if (dev->button_pressed) { + dev->button_pressed--; + snprintf(str, sizeof(str), " button pressed!"); + tpg_gen_text(tpg, basep, line++ * line_height, 16, str); + } + if (dev->osd[0]) { + if (vivid_is_hdmi_cap(dev)) { + snprintf(str, sizeof(str), + " OSD \"%s\"", dev->osd); + tpg_gen_text(tpg, basep, line++ * line_height, + 16, str); + } + if (dev->osd_jiffies && + time_is_before_jiffies(dev->osd_jiffies + 5 * HZ)) { + dev->osd[0] = 0; + dev->osd_jiffies = 0; + } + } + } +} + +/* + * Return true if this pixel coordinate is a valid video pixel. + */ +static bool valid_pix(struct vivid_dev *dev, int win_y, int win_x, int fb_y, int fb_x) +{ + int i; + + if (dev->bitmap_cap) { + /* + * Only if the corresponding bit in the bitmap is set can + * the video pixel be shown. Coordinates are relative to + * the overlay window set by VIDIOC_S_FMT. + */ + const u8 *p = dev->bitmap_cap; + unsigned stride = (dev->compose_cap.width + 7) / 8; + + if (!(p[stride * win_y + win_x / 8] & (1 << (win_x & 7)))) + return false; + } + + for (i = 0; i < dev->clipcount_cap; i++) { + /* + * Only if the framebuffer coordinate is not in any of the + * clip rectangles will be video pixel be shown. + */ + struct v4l2_rect *r = &dev->clips_cap[i].c; + + if (fb_y >= r->top && fb_y < r->top + r->height && + fb_x >= r->left && fb_x < r->left + r->width) + return false; + } + return true; +} + +/* + * Draw the image into the overlay buffer. + * Note that the combination of overlay and multiplanar is not supported. + */ +static void vivid_overlay(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + struct tpg_data *tpg = &dev->tpg; + unsigned pixsize = tpg_g_twopixelsize(tpg, 0) / 2; + void *vbase = dev->fb_vbase_cap; + void *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + unsigned img_width = dev->compose_cap.width; + unsigned img_height = dev->compose_cap.height; + unsigned stride = tpg->bytesperline[0]; + /* if quick is true, then valid_pix() doesn't have to be called */ + bool quick = dev->bitmap_cap == NULL && dev->clipcount_cap == 0; + int x, y, w, out_x = 0; + + /* + * Overlay support is only supported for formats that have a twopixelsize + * that's >= 2. Warn and bail out if that's not the case. + */ + if (WARN_ON(pixsize == 0)) + return; + if ((dev->overlay_cap_field == V4L2_FIELD_TOP || + dev->overlay_cap_field == V4L2_FIELD_BOTTOM) && + dev->overlay_cap_field != buf->vb.field) + return; + + vbuf += dev->compose_cap.left * pixsize + dev->compose_cap.top * stride; + x = dev->overlay_cap_left; + w = img_width; + if (x < 0) { + out_x = -x; + w = w - out_x; + x = 0; + } else { + w = dev->fb_cap.fmt.width - x; + if (w > img_width) + w = img_width; + } + if (w <= 0) + return; + if (dev->overlay_cap_top >= 0) + vbase += dev->overlay_cap_top * dev->fb_cap.fmt.bytesperline; + for (y = dev->overlay_cap_top; + y < dev->overlay_cap_top + (int)img_height; + y++, vbuf += stride) { + int px; + + if (y < 0 || y > dev->fb_cap.fmt.height) + continue; + if (quick) { + memcpy(vbase + x * pixsize, + vbuf + out_x * pixsize, w * pixsize); + vbase += dev->fb_cap.fmt.bytesperline; + continue; + } + for (px = 0; px < w; px++) { + if (!valid_pix(dev, y - dev->overlay_cap_top, + px + out_x, y, px + x)) + continue; + memcpy(vbase + (px + x) * pixsize, + vbuf + (px + out_x) * pixsize, + pixsize); + } + vbase += dev->fb_cap.fmt.bytesperline; + } +} + +static void vivid_cap_update_frame_period(struct vivid_dev *dev) +{ + u64 f_period; + + f_period = (u64)dev->timeperframe_vid_cap.numerator * 1000000000; + if (WARN_ON(dev->timeperframe_vid_cap.denominator == 0)) + dev->timeperframe_vid_cap.denominator = 1; + do_div(f_period, dev->timeperframe_vid_cap.denominator); + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + f_period >>= 1; + /* + * If "End of Frame", then offset the exposure time by 0.9 + * of the frame period. + */ + dev->cap_frame_eof_offset = f_period * 9; + do_div(dev->cap_frame_eof_offset, 10); + dev->cap_frame_period = f_period; +} + +static noinline_for_stack void vivid_thread_vid_cap_tick(struct vivid_dev *dev, + int dropped_bufs) +{ + struct vivid_buffer *vid_cap_buf = NULL; + struct vivid_buffer *vbi_cap_buf = NULL; + struct vivid_buffer *meta_cap_buf = NULL; + u64 f_time = 0; + + dprintk(dev, 1, "Video Capture Thread Tick\n"); + + while (dropped_bufs-- > 1) + tpg_update_mv_count(&dev->tpg, + dev->field_cap == V4L2_FIELD_NONE || + dev->field_cap == V4L2_FIELD_ALTERNATE); + + /* Drop a certain percentage of buffers. */ + if (dev->perc_dropped_buffers && + prandom_u32_max(100) < dev->perc_dropped_buffers) + goto update_mv; + + spin_lock(&dev->slock); + if (!list_empty(&dev->vid_cap_active)) { + vid_cap_buf = list_entry(dev->vid_cap_active.next, struct vivid_buffer, list); + list_del(&vid_cap_buf->list); + } + if (!list_empty(&dev->vbi_cap_active)) { + if (dev->field_cap != V4L2_FIELD_ALTERNATE || + (dev->vbi_cap_seq_count & 1)) { + vbi_cap_buf = list_entry(dev->vbi_cap_active.next, + struct vivid_buffer, list); + list_del(&vbi_cap_buf->list); + } + } + if (!list_empty(&dev->meta_cap_active)) { + meta_cap_buf = list_entry(dev->meta_cap_active.next, + struct vivid_buffer, list); + list_del(&meta_cap_buf->list); + } + + spin_unlock(&dev->slock); + + if (!vid_cap_buf && !vbi_cap_buf && !meta_cap_buf) + goto update_mv; + + f_time = ktime_get_ns() + dev->time_wrap_offset; + + if (vid_cap_buf) { + v4l2_ctrl_request_setup(vid_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_cap); + /* Fill buffer */ + vivid_fillbuff(dev, vid_cap_buf); + dprintk(dev, 1, "filled buffer %d\n", + vid_cap_buf->vb.vb2_buf.index); + + /* Handle overlay */ + if (dev->overlay_cap_owner && dev->fb_cap.base && + dev->fb_cap.fmt.pixelformat == dev->fmt_cap->fourcc) + vivid_overlay(dev, vid_cap_buf); + + v4l2_ctrl_request_complete(vid_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_cap); + vb2_buffer_done(&vid_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "vid_cap buffer %d done\n", + vid_cap_buf->vb.vb2_buf.index); + + vid_cap_buf->vb.vb2_buf.timestamp = f_time; + if (!dev->tstamp_src_is_soe) + vid_cap_buf->vb.vb2_buf.timestamp += dev->cap_frame_eof_offset; + } + + if (vbi_cap_buf) { + u64 vbi_period; + + v4l2_ctrl_request_setup(vbi_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_cap); + if (vbi_cap_buf->vb.vb2_buf.type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) + vivid_sliced_vbi_cap_process(dev, vbi_cap_buf); + else + vivid_raw_vbi_cap_process(dev, vbi_cap_buf); + v4l2_ctrl_request_complete(vbi_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_cap); + vb2_buffer_done(&vbi_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "vbi_cap %d done\n", + vbi_cap_buf->vb.vb2_buf.index); + + /* If capturing a VBI, offset by 0.05 */ + vbi_period = dev->cap_frame_period * 5; + do_div(vbi_period, 100); + vbi_cap_buf->vb.vb2_buf.timestamp = f_time + dev->cap_frame_eof_offset + vbi_period; + } + + if (meta_cap_buf) { + v4l2_ctrl_request_setup(meta_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_cap); + vivid_meta_cap_fillbuff(dev, meta_cap_buf, f_time); + v4l2_ctrl_request_complete(meta_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_cap); + vb2_buffer_done(&meta_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "meta_cap %d done\n", + meta_cap_buf->vb.vb2_buf.index); + meta_cap_buf->vb.vb2_buf.timestamp = f_time + dev->cap_frame_eof_offset; + } + + dev->dqbuf_error = false; + +update_mv: + /* Update the test pattern movement counters */ + tpg_update_mv_count(&dev->tpg, dev->field_cap == V4L2_FIELD_NONE || + dev->field_cap == V4L2_FIELD_ALTERNATE); +} + +static int vivid_thread_vid_cap(void *data) +{ + struct vivid_dev *dev = data; + u64 numerators_since_start; + u64 buffers_since_start; + u64 next_jiffies_since_start; + unsigned long jiffies_since_start; + unsigned long cur_jiffies; + unsigned wait_jiffies; + unsigned numerator; + unsigned denominator; + int dropped_bufs; + + dprintk(dev, 1, "Video Capture Thread Start\n"); + + set_freezable(); + + /* Resets frame counters */ + dev->cap_seq_offset = 0; + dev->cap_seq_count = 0; + dev->cap_seq_resync = false; + dev->jiffies_vid_cap = jiffies; + dev->cap_stream_start = ktime_get_ns(); + if (dev->time_wrap) + dev->time_wrap_offset = dev->time_wrap - dev->cap_stream_start; + else + dev->time_wrap_offset = 0; + vivid_cap_update_frame_period(dev); + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + if (!mutex_trylock(&dev->mutex)) { + schedule(); + continue; + } + + cur_jiffies = jiffies; + if (dev->cap_seq_resync) { + dev->jiffies_vid_cap = cur_jiffies; + dev->cap_seq_offset = dev->cap_seq_count + 1; + dev->cap_seq_count = 0; + dev->cap_stream_start += dev->cap_frame_period * + dev->cap_seq_offset; + vivid_cap_update_frame_period(dev); + dev->cap_seq_resync = false; + } + numerator = dev->timeperframe_vid_cap.numerator; + denominator = dev->timeperframe_vid_cap.denominator; + + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + denominator *= 2; + + /* Calculate the number of jiffies since we started streaming */ + jiffies_since_start = cur_jiffies - dev->jiffies_vid_cap; + /* Get the number of buffers streamed since the start */ + buffers_since_start = (u64)jiffies_since_start * denominator + + (HZ * numerator) / 2; + do_div(buffers_since_start, HZ * numerator); + + /* + * After more than 0xf0000000 (rounded down to a multiple of + * 'jiffies-per-day' to ease jiffies_to_msecs calculation) + * jiffies have passed since we started streaming reset the + * counters and keep track of the sequence offset. + */ + if (jiffies_since_start > JIFFIES_RESYNC) { + dev->jiffies_vid_cap = cur_jiffies; + dev->cap_seq_offset = buffers_since_start; + buffers_since_start = 0; + } + dropped_bufs = buffers_since_start + dev->cap_seq_offset - dev->cap_seq_count; + dev->cap_seq_count = buffers_since_start + dev->cap_seq_offset; + dev->vid_cap_seq_count = dev->cap_seq_count - dev->vid_cap_seq_start; + dev->vbi_cap_seq_count = dev->cap_seq_count - dev->vbi_cap_seq_start; + dev->meta_cap_seq_count = dev->cap_seq_count - dev->meta_cap_seq_start; + + vivid_thread_vid_cap_tick(dev, dropped_bufs); + + /* + * Calculate the number of 'numerators' streamed since we started, + * including the current buffer. + */ + numerators_since_start = ++buffers_since_start * numerator; + + /* And the number of jiffies since we started */ + jiffies_since_start = jiffies - dev->jiffies_vid_cap; + + mutex_unlock(&dev->mutex); + + /* + * Calculate when that next buffer is supposed to start + * in jiffies since we started streaming. + */ + next_jiffies_since_start = numerators_since_start * HZ + + denominator / 2; + do_div(next_jiffies_since_start, denominator); + /* If it is in the past, then just schedule asap */ + if (next_jiffies_since_start < jiffies_since_start) + next_jiffies_since_start = jiffies_since_start; + + wait_jiffies = next_jiffies_since_start - jiffies_since_start; + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && + !kthread_should_stop()) + schedule(); + } + dprintk(dev, 1, "Video Capture Thread End\n"); + return 0; +} + +static void vivid_grab_controls(struct vivid_dev *dev, bool grab) +{ + v4l2_ctrl_grab(dev->ctrl_has_crop_cap, grab); + v4l2_ctrl_grab(dev->ctrl_has_compose_cap, grab); + v4l2_ctrl_grab(dev->ctrl_has_scaler_cap, grab); +} + +int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (dev->kthread_vid_cap) { + u32 seq_count = dev->cap_seq_count + dev->seq_wrap * 128; + + if (pstreaming == &dev->vid_cap_streaming) + dev->vid_cap_seq_start = seq_count; + else if (pstreaming == &dev->vbi_cap_streaming) + dev->vbi_cap_seq_start = seq_count; + else + dev->meta_cap_seq_start = seq_count; + *pstreaming = true; + return 0; + } + + /* Resets frame counters */ + tpg_init_mv_count(&dev->tpg); + + dev->vid_cap_seq_start = dev->seq_wrap * 128; + dev->vbi_cap_seq_start = dev->seq_wrap * 128; + dev->meta_cap_seq_start = dev->seq_wrap * 128; + + dev->kthread_vid_cap = kthread_run(vivid_thread_vid_cap, dev, + "%s-vid-cap", dev->v4l2_dev.name); + + if (IS_ERR(dev->kthread_vid_cap)) { + int err = PTR_ERR(dev->kthread_vid_cap); + + dev->kthread_vid_cap = NULL; + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + return err; + } + *pstreaming = true; + vivid_grab_controls(dev, true); + + dprintk(dev, 1, "returning from %s\n", __func__); + return 0; +} + +void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (dev->kthread_vid_cap == NULL) + return; + + *pstreaming = false; + if (pstreaming == &dev->vid_cap_streaming) { + /* Release all active buffers */ + while (!list_empty(&dev->vid_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->vid_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "vid_cap buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (pstreaming == &dev->vbi_cap_streaming) { + while (!list_empty(&dev->vbi_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->vbi_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "vbi_cap buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (pstreaming == &dev->meta_cap_streaming) { + while (!list_empty(&dev->meta_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->meta_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "meta_cap buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (dev->vid_cap_streaming || dev->vbi_cap_streaming || + dev->meta_cap_streaming) + return; + + /* shutdown control thread */ + vivid_grab_controls(dev, false); + kthread_stop(dev->kthread_vid_cap); + dev->kthread_vid_cap = NULL; +} diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-cap.h b/drivers/media/test-drivers/vivid/vivid-kthread-cap.h new file mode 100644 index 000000000..0f4301530 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-cap.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-kthread-cap.h - video/vbi capture thread support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_KTHREAD_CAP_H_ +#define _VIVID_KTHREAD_CAP_H_ + +int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming); +void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-out.c b/drivers/media/test-drivers/vivid/vivid-kthread-out.c new file mode 100644 index 000000000..0833e021b --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-out.c @@ -0,0 +1,357 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-kthread-out.h - video/vbi output thread support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/font.h> +#include <linux/mutex.h> +#include <linux/videodev2.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/random.h> +#include <linux/v4l2-dv-timings.h> +#include <linux/jiffies.h> +#include <asm/div64.h> +#include <media/videobuf2-vmalloc.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-vid-cap.h" +#include "vivid-vid-out.h" +#include "vivid-radio-common.h" +#include "vivid-radio-rx.h" +#include "vivid-radio-tx.h" +#include "vivid-sdr-cap.h" +#include "vivid-vbi-cap.h" +#include "vivid-vbi-out.h" +#include "vivid-osd.h" +#include "vivid-ctrls.h" +#include "vivid-kthread-out.h" +#include "vivid-meta-out.h" + +static void vivid_thread_vid_out_tick(struct vivid_dev *dev) +{ + struct vivid_buffer *vid_out_buf = NULL; + struct vivid_buffer *vbi_out_buf = NULL; + struct vivid_buffer *meta_out_buf = NULL; + + dprintk(dev, 1, "Video Output Thread Tick\n"); + + /* Drop a certain percentage of buffers. */ + if (dev->perc_dropped_buffers && + prandom_u32_max(100) < dev->perc_dropped_buffers) + return; + + spin_lock(&dev->slock); + /* + * Only dequeue buffer if there is at least one more pending. + * This makes video loopback possible. + */ + if (!list_empty(&dev->vid_out_active) && + !list_is_singular(&dev->vid_out_active)) { + vid_out_buf = list_entry(dev->vid_out_active.next, + struct vivid_buffer, list); + list_del(&vid_out_buf->list); + } + if (!list_empty(&dev->vbi_out_active) && + (dev->field_out != V4L2_FIELD_ALTERNATE || + (dev->vbi_out_seq_count & 1))) { + vbi_out_buf = list_entry(dev->vbi_out_active.next, + struct vivid_buffer, list); + list_del(&vbi_out_buf->list); + } + if (!list_empty(&dev->meta_out_active)) { + meta_out_buf = list_entry(dev->meta_out_active.next, + struct vivid_buffer, list); + list_del(&meta_out_buf->list); + } + spin_unlock(&dev->slock); + + if (!vid_out_buf && !vbi_out_buf && !meta_out_buf) + return; + + if (vid_out_buf) { + v4l2_ctrl_request_setup(vid_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_out); + v4l2_ctrl_request_complete(vid_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_out); + vid_out_buf->vb.sequence = dev->vid_out_seq_count; + if (dev->field_out == V4L2_FIELD_ALTERNATE) { + /* + * The sequence counter counts frames, not fields. + * So divide by two. + */ + vid_out_buf->vb.sequence /= 2; + } + vid_out_buf->vb.vb2_buf.timestamp = + ktime_get_ns() + dev->time_wrap_offset; + vb2_buffer_done(&vid_out_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "vid_out buffer %d done\n", + vid_out_buf->vb.vb2_buf.index); + } + + if (vbi_out_buf) { + v4l2_ctrl_request_setup(vbi_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_out); + v4l2_ctrl_request_complete(vbi_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_out); + if (dev->stream_sliced_vbi_out) + vivid_sliced_vbi_out_process(dev, vbi_out_buf); + + vbi_out_buf->vb.sequence = dev->vbi_out_seq_count; + vbi_out_buf->vb.vb2_buf.timestamp = + ktime_get_ns() + dev->time_wrap_offset; + vb2_buffer_done(&vbi_out_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "vbi_out buffer %d done\n", + vbi_out_buf->vb.vb2_buf.index); + } + if (meta_out_buf) { + v4l2_ctrl_request_setup(meta_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_out); + v4l2_ctrl_request_complete(meta_out_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_out); + vivid_meta_out_process(dev, meta_out_buf); + meta_out_buf->vb.sequence = dev->meta_out_seq_count; + meta_out_buf->vb.vb2_buf.timestamp = + ktime_get_ns() + dev->time_wrap_offset; + vb2_buffer_done(&meta_out_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "meta_out buffer %d done\n", + meta_out_buf->vb.vb2_buf.index); + } + + dev->dqbuf_error = false; +} + +static int vivid_thread_vid_out(void *data) +{ + struct vivid_dev *dev = data; + u64 numerators_since_start; + u64 buffers_since_start; + u64 next_jiffies_since_start; + unsigned long jiffies_since_start; + unsigned long cur_jiffies; + unsigned wait_jiffies; + unsigned numerator; + unsigned denominator; + + dprintk(dev, 1, "Video Output Thread Start\n"); + + set_freezable(); + + /* Resets frame counters */ + dev->out_seq_offset = 0; + dev->out_seq_count = 0; + dev->jiffies_vid_out = jiffies; + dev->out_seq_resync = false; + if (dev->time_wrap) + dev->time_wrap_offset = dev->time_wrap - ktime_get_ns(); + else + dev->time_wrap_offset = 0; + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + if (!mutex_trylock(&dev->mutex)) { + schedule(); + continue; + } + + cur_jiffies = jiffies; + if (dev->out_seq_resync) { + dev->jiffies_vid_out = cur_jiffies; + dev->out_seq_offset = dev->out_seq_count + 1; + dev->out_seq_count = 0; + dev->out_seq_resync = false; + } + numerator = dev->timeperframe_vid_out.numerator; + denominator = dev->timeperframe_vid_out.denominator; + + if (dev->field_out == V4L2_FIELD_ALTERNATE) + denominator *= 2; + + /* Calculate the number of jiffies since we started streaming */ + jiffies_since_start = cur_jiffies - dev->jiffies_vid_out; + /* Get the number of buffers streamed since the start */ + buffers_since_start = (u64)jiffies_since_start * denominator + + (HZ * numerator) / 2; + do_div(buffers_since_start, HZ * numerator); + + /* + * After more than 0xf0000000 (rounded down to a multiple of + * 'jiffies-per-day' to ease jiffies_to_msecs calculation) + * jiffies have passed since we started streaming reset the + * counters and keep track of the sequence offset. + */ + if (jiffies_since_start > JIFFIES_RESYNC) { + dev->jiffies_vid_out = cur_jiffies; + dev->out_seq_offset = buffers_since_start; + buffers_since_start = 0; + } + dev->out_seq_count = buffers_since_start + dev->out_seq_offset; + dev->vid_out_seq_count = dev->out_seq_count - dev->vid_out_seq_start; + dev->vbi_out_seq_count = dev->out_seq_count - dev->vbi_out_seq_start; + dev->meta_out_seq_count = dev->out_seq_count - dev->meta_out_seq_start; + + vivid_thread_vid_out_tick(dev); + mutex_unlock(&dev->mutex); + + /* + * Calculate the number of 'numerators' streamed since we started, + * not including the current buffer. + */ + numerators_since_start = buffers_since_start * numerator; + + /* And the number of jiffies since we started */ + jiffies_since_start = jiffies - dev->jiffies_vid_out; + + /* Increase by the 'numerator' of one buffer */ + numerators_since_start += numerator; + /* + * Calculate when that next buffer is supposed to start + * in jiffies since we started streaming. + */ + next_jiffies_since_start = numerators_since_start * HZ + + denominator / 2; + do_div(next_jiffies_since_start, denominator); + /* If it is in the past, then just schedule asap */ + if (next_jiffies_since_start < jiffies_since_start) + next_jiffies_since_start = jiffies_since_start; + + wait_jiffies = next_jiffies_since_start - jiffies_since_start; + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && + !kthread_should_stop()) + schedule(); + } + dprintk(dev, 1, "Video Output Thread End\n"); + return 0; +} + +static void vivid_grab_controls(struct vivid_dev *dev, bool grab) +{ + v4l2_ctrl_grab(dev->ctrl_has_crop_out, grab); + v4l2_ctrl_grab(dev->ctrl_has_compose_out, grab); + v4l2_ctrl_grab(dev->ctrl_has_scaler_out, grab); + v4l2_ctrl_grab(dev->ctrl_tx_mode, grab); + v4l2_ctrl_grab(dev->ctrl_tx_rgb_range, grab); +} + +int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (dev->kthread_vid_out) { + u32 seq_count = dev->out_seq_count + dev->seq_wrap * 128; + + if (pstreaming == &dev->vid_out_streaming) + dev->vid_out_seq_start = seq_count; + else if (pstreaming == &dev->vbi_out_streaming) + dev->vbi_out_seq_start = seq_count; + else + dev->meta_out_seq_start = seq_count; + *pstreaming = true; + return 0; + } + + /* Resets frame counters */ + dev->jiffies_vid_out = jiffies; + dev->vid_out_seq_start = dev->seq_wrap * 128; + dev->vbi_out_seq_start = dev->seq_wrap * 128; + dev->meta_out_seq_start = dev->seq_wrap * 128; + + dev->kthread_vid_out = kthread_run(vivid_thread_vid_out, dev, + "%s-vid-out", dev->v4l2_dev.name); + + if (IS_ERR(dev->kthread_vid_out)) { + int err = PTR_ERR(dev->kthread_vid_out); + + dev->kthread_vid_out = NULL; + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + return err; + } + *pstreaming = true; + vivid_grab_controls(dev, true); + + dprintk(dev, 1, "returning from %s\n", __func__); + return 0; +} + +void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (dev->kthread_vid_out == NULL) + return; + + *pstreaming = false; + if (pstreaming == &dev->vid_out_streaming) { + /* Release all active buffers */ + while (!list_empty(&dev->vid_out_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->vid_out_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vid_out); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "vid_out buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (pstreaming == &dev->vbi_out_streaming) { + while (!list_empty(&dev->vbi_out_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->vbi_out_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_vbi_out); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "vbi_out buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (pstreaming == &dev->meta_out_streaming) { + while (!list_empty(&dev->meta_out_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->meta_out_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_meta_out); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "meta_out buffer %d done\n", + buf->vb.vb2_buf.index); + } + } + + if (dev->vid_out_streaming || dev->vbi_out_streaming || + dev->meta_out_streaming) + return; + + /* shutdown control thread */ + vivid_grab_controls(dev, false); + kthread_stop(dev->kthread_vid_out); + dev->kthread_vid_out = NULL; +} diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-out.h b/drivers/media/test-drivers/vivid/vivid-kthread-out.h new file mode 100644 index 000000000..d5bcf44bb --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-out.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-kthread-out.h - video/vbi output thread support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_KTHREAD_OUT_H_ +#define _VIVID_KTHREAD_OUT_H_ + +int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming); +void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-touch.c b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c new file mode 100644 index 000000000..fa711ee36 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-kthread-touch.c - touch capture thread support functions. + * + */ + +#include <linux/freezer.h> +#include <linux/jiffies.h> +#include "vivid-core.h" +#include "vivid-kthread-touch.h" +#include "vivid-touch-cap.h" + +static noinline_for_stack void vivid_thread_tch_cap_tick(struct vivid_dev *dev, + int dropped_bufs) +{ + struct vivid_buffer *tch_cap_buf = NULL; + + spin_lock(&dev->slock); + if (!list_empty(&dev->touch_cap_active)) { + tch_cap_buf = list_entry(dev->touch_cap_active.next, + struct vivid_buffer, list); + list_del(&tch_cap_buf->list); + } + + spin_unlock(&dev->slock); + + if (tch_cap_buf) { + v4l2_ctrl_request_setup(tch_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + + vivid_fillbuff_tch(dev, tch_cap_buf); + v4l2_ctrl_request_complete(tch_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + vb2_buffer_done(&tch_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "touch_cap buffer %d done\n", + tch_cap_buf->vb.vb2_buf.index); + + tch_cap_buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset; + } + dev->dqbuf_error = false; +} + +static int vivid_thread_touch_cap(void *data) +{ + struct vivid_dev *dev = data; + u64 numerators_since_start; + u64 buffers_since_start; + u64 next_jiffies_since_start; + unsigned long jiffies_since_start; + unsigned long cur_jiffies; + unsigned int wait_jiffies; + unsigned int numerator; + unsigned int denominator; + int dropped_bufs; + + dprintk(dev, 1, "Touch Capture Thread Start\n"); + + set_freezable(); + + /* Resets frame counters */ + dev->touch_cap_seq_offset = 0; + dev->touch_cap_seq_count = 0; + dev->touch_cap_seq_resync = false; + dev->jiffies_touch_cap = jiffies; + if (dev->time_wrap) + dev->time_wrap_offset = dev->time_wrap - ktime_get_ns(); + else + dev->time_wrap_offset = 0; + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + if (!mutex_trylock(&dev->mutex)) { + schedule(); + continue; + } + cur_jiffies = jiffies; + if (dev->touch_cap_seq_resync) { + dev->jiffies_touch_cap = cur_jiffies; + dev->touch_cap_seq_offset = dev->touch_cap_seq_count + 1; + dev->touch_cap_seq_count = 0; + dev->cap_seq_resync = false; + } + denominator = dev->timeperframe_tch_cap.denominator; + numerator = dev->timeperframe_tch_cap.numerator; + + /* Calculate the number of jiffies since we started streaming */ + jiffies_since_start = cur_jiffies - dev->jiffies_touch_cap; + /* Get the number of buffers streamed since the start */ + buffers_since_start = (u64)jiffies_since_start * denominator + + (HZ * numerator) / 2; + do_div(buffers_since_start, HZ * numerator); + + /* + * After more than 0xf0000000 (rounded down to a multiple of + * 'jiffies-per-day' to ease jiffies_to_msecs calculation) + * jiffies have passed since we started streaming reset the + * counters and keep track of the sequence offset. + */ + if (jiffies_since_start > JIFFIES_RESYNC) { + dev->jiffies_touch_cap = cur_jiffies; + dev->cap_seq_offset = buffers_since_start; + buffers_since_start = 0; + } + dropped_bufs = buffers_since_start + dev->touch_cap_seq_offset - dev->touch_cap_seq_count; + dev->touch_cap_seq_count = buffers_since_start + dev->touch_cap_seq_offset; + dev->touch_cap_with_seq_wrap_count = + dev->touch_cap_seq_count - dev->touch_cap_seq_start; + + vivid_thread_tch_cap_tick(dev, dropped_bufs); + + /* + * Calculate the number of 'numerators' streamed + * since we started, including the current buffer. + */ + numerators_since_start = ++buffers_since_start * numerator; + + /* And the number of jiffies since we started */ + jiffies_since_start = jiffies - dev->jiffies_touch_cap; + + mutex_unlock(&dev->mutex); + + /* + * Calculate when that next buffer is supposed to start + * in jiffies since we started streaming. + */ + next_jiffies_since_start = numerators_since_start * HZ + + denominator / 2; + do_div(next_jiffies_since_start, denominator); + /* If it is in the past, then just schedule asap */ + if (next_jiffies_since_start < jiffies_since_start) + next_jiffies_since_start = jiffies_since_start; + + wait_jiffies = next_jiffies_since_start - jiffies_since_start; + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && + !kthread_should_stop()) + schedule(); + } + dprintk(dev, 1, "Touch Capture Thread End\n"); + return 0; +} + +int vivid_start_generating_touch_cap(struct vivid_dev *dev) +{ + if (dev->kthread_touch_cap) { + dev->touch_cap_streaming = true; + return 0; + } + + dev->touch_cap_seq_start = dev->seq_wrap * 128; + dev->kthread_touch_cap = kthread_run(vivid_thread_touch_cap, dev, + "%s-tch-cap", dev->v4l2_dev.name); + + if (IS_ERR(dev->kthread_touch_cap)) { + int err = PTR_ERR(dev->kthread_touch_cap); + + dev->kthread_touch_cap = NULL; + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + return err; + } + dev->touch_cap_streaming = true; + dprintk(dev, 1, "returning from %s\n", __func__); + return 0; +} + +void vivid_stop_generating_touch_cap(struct vivid_dev *dev) +{ + if (!dev->kthread_touch_cap) + return; + + dev->touch_cap_streaming = false; + + while (!list_empty(&dev->touch_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->touch_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "touch_cap buffer %d done\n", + buf->vb.vb2_buf.index); + } + + kthread_stop(dev->kthread_touch_cap); + dev->kthread_touch_cap = NULL; +} diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-touch.h b/drivers/media/test-drivers/vivid/vivid-kthread-touch.h new file mode 100644 index 000000000..ecf79b462 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-kthread-touch.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-kthread-cap.h - video/vbi capture thread support functions. + * + */ + +#ifndef _VIVID_KTHREAD_CAP_H_ +#define _VIVID_KTHREAD_CAP_H_ + +int vivid_start_generating_touch_cap(struct vivid_dev *dev); +void vivid_stop_generating_touch_cap(struct vivid_dev *dev); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c new file mode 100644 index 000000000..780f96860 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c @@ -0,0 +1,201 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-meta-cap.c - meta capture support functions. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <linux/usb/video.h> + +#include "vivid-core.h" +#include "vivid-kthread-cap.h" +#include "vivid-meta-cap.h" + +static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + unsigned int size = sizeof(struct vivid_uvc_meta_buf); + + if (!vivid_is_webcam(dev)) + return -EINVAL; + + if (*nplanes) { + if (sizes[0] < size) + return -EINVAL; + } else { + sizes[0] = size; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int meta_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned int size = sizeof(struct vivid_uvc_meta_buf); + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void meta_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->meta_cap_active); + spin_unlock(&dev->slock); +} + +static int meta_cap_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dprintk(dev, 1, "%s\n", __func__); + dev->meta_cap_seq_count = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_cap(dev, + &dev->meta_cap_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, + &dev->meta_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void meta_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_cap(dev, &dev->meta_cap_streaming); +} + +static void meta_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_meta_cap); +} + +const struct vb2_ops vivid_meta_cap_qops = { + .queue_setup = meta_cap_queue_setup, + .buf_prepare = meta_cap_buf_prepare, + .buf_queue = meta_cap_buf_queue, + .start_streaming = meta_cap_start_streaming, + .stop_streaming = meta_cap_stop_streaming, + .buf_request_complete = meta_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vidioc_enum_fmt_meta_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_webcam(dev)) + return -EINVAL; + + if (f->index > 0) + return -EINVAL; + + f->type = V4L2_BUF_TYPE_META_CAPTURE; + f->pixelformat = V4L2_META_FMT_UVC; + return 0; +} + +int vidioc_g_fmt_meta_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_meta_format *meta = &f->fmt.meta; + + if (!vivid_is_webcam(dev) || !dev->has_meta_cap) + return -EINVAL; + + meta->dataformat = V4L2_META_FMT_UVC; + meta->buffersize = sizeof(struct vivid_uvc_meta_buf); + return 0; +} + +void vivid_meta_cap_fillbuff(struct vivid_dev *dev, + struct vivid_buffer *buf, u64 soe) +{ + struct vivid_uvc_meta_buf *meta = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + int buf_off = 0; + + buf->vb.sequence = dev->meta_cap_seq_count; + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + buf->vb.sequence /= 2; + memset(meta, 1, vb2_plane_size(&buf->vb.vb2_buf, 0)); + + meta->ns = ktime_get_ns(); + meta->sof = buf->vb.sequence * 30; + meta->length = sizeof(*meta) - offsetof(struct vivid_uvc_meta_buf, length); + meta->flags = UVC_STREAM_EOH | UVC_STREAM_EOF; + + if ((buf->vb.sequence % 2) == 0) + meta->flags |= UVC_STREAM_FID; + + dprintk(dev, 2, "%s ns:%llu sof:%4d len:%u flags: 0x%02x", + __func__, meta->ns, meta->sof, meta->length, meta->flags); + if (dev->meta_pts) { + meta->flags |= UVC_STREAM_PTS; + meta->buf[0] = div_u64(soe, VIVID_META_CLOCK_UNIT); + buf_off = 4; + dprintk(dev, 2, " pts: %u\n", *(__u32 *)(meta->buf)); + } + + if (dev->meta_scr) { + meta->flags |= UVC_STREAM_SCR; + meta->buf[buf_off] = div_u64((soe + dev->cap_frame_eof_offset), + VIVID_META_CLOCK_UNIT); + + meta->buf[buf_off + 4] = (buf->vb.sequence * 30) % 1000; + dprintk(dev, 2, " stc: %u, sof counter: %u\n", + *(__u32 *)(meta->buf + buf_off), + *(__u16 *)(meta->buf + buf_off + 4)); + } + dprintk(dev, 2, "\n"); +} diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.h b/drivers/media/test-drivers/vivid/vivid-meta-cap.h new file mode 100644 index 000000000..4670d00d1 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-meta-cap.h - meta capture support functions. + */ +#ifndef _VIVID_META_CAP_H_ +#define _VIVID_META_CAP_H_ + +#define VIVID_META_CLOCK_UNIT 10 /* 100 MHz */ + +struct vivid_uvc_meta_buf { + __u64 ns; + __u16 sof; + __u8 length; + __u8 flags; + __u8 buf[10]; /* PTS(4)+STC(4)+SOF(2) */ +} __packed; + +void vivid_meta_cap_fillbuff(struct vivid_dev *dev, + struct vivid_buffer *buf, u64 soe); + +int vidioc_enum_fmt_meta_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f); + +int vidioc_g_fmt_meta_cap(struct file *file, void *priv, + struct v4l2_format *f); + +extern const struct vb2_ops vivid_meta_cap_qops; + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c new file mode 100644 index 000000000..95835b52b --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-meta-out.c - meta output support functions. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <linux/usb/video.h> + +#include "vivid-core.h" +#include "vivid-kthread-out.h" +#include "vivid-meta-out.h" + +static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + unsigned int size = sizeof(struct vivid_meta_out_buf); + + if (!vivid_is_webcam(dev)) + return -EINVAL; + + if (*nplanes) { + if (sizes[0] < size) + return -EINVAL; + } else { + sizes[0] = size; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int meta_out_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned int size = sizeof(struct vivid_meta_out_buf); + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void meta_out_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->meta_out_active); + spin_unlock(&dev->slock); +} + +static int meta_out_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dprintk(dev, 1, "%s\n", __func__); + dev->meta_out_seq_count = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_out(dev, + &dev->meta_out_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, + &dev->meta_out_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void meta_out_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_out(dev, &dev->meta_out_streaming); +} + +static void meta_out_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_meta_out); +} + +const struct vb2_ops vivid_meta_out_qops = { + .queue_setup = meta_out_queue_setup, + .buf_prepare = meta_out_buf_prepare, + .buf_queue = meta_out_buf_queue, + .start_streaming = meta_out_start_streaming, + .stop_streaming = meta_out_stop_streaming, + .buf_request_complete = meta_out_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vidioc_enum_fmt_meta_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_webcam(dev)) + return -EINVAL; + + if (f->index > 0) + return -EINVAL; + + f->type = V4L2_BUF_TYPE_META_OUTPUT; + f->pixelformat = V4L2_META_FMT_VIVID; + return 0; +} + +int vidioc_g_fmt_meta_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_meta_format *meta = &f->fmt.meta; + + if (!vivid_is_webcam(dev) || !dev->has_meta_out) + return -EINVAL; + + meta->dataformat = V4L2_META_FMT_VIVID; + meta->buffersize = sizeof(struct vivid_meta_out_buf); + return 0; +} + +void vivid_meta_out_process(struct vivid_dev *dev, + struct vivid_buffer *buf) +{ + struct vivid_meta_out_buf *meta = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + v4l2_ctrl_s_ctrl(dev->brightness, meta->brightness); + v4l2_ctrl_s_ctrl(dev->contrast, meta->contrast); + v4l2_ctrl_s_ctrl(dev->saturation, meta->saturation); + v4l2_ctrl_s_ctrl(dev->hue, meta->hue); + + dprintk(dev, 2, " %s brightness %u contrast %u saturation %u hue %d\n", + __func__, meta->brightness, meta->contrast, + meta->saturation, meta->hue); +} diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.h b/drivers/media/test-drivers/vivid/vivid-meta-out.h new file mode 100644 index 000000000..0c639b7c2 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-meta-out.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-meta-out.h - meta output support functions. + */ +#ifndef _VIVID_META_OUT_H_ +#define _VIVID_META_OUT_H_ + +struct vivid_meta_out_buf { + u16 brightness; + u16 contrast; + u16 saturation; + s16 hue; +}; + +void vivid_meta_out_process(struct vivid_dev *dev, struct vivid_buffer *buf); +int vidioc_enum_fmt_meta_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f); +int vidioc_g_fmt_meta_out(struct file *file, void *priv, + struct v4l2_format *f); +int vidioc_s_fmt_meta_out(struct file *file, void *priv, + struct v4l2_format *f); + +extern const struct vb2_ops vivid_meta_out_qops; + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-osd.c b/drivers/media/test-drivers/vivid/vivid-osd.c new file mode 100644 index 000000000..ec25edc67 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-osd.c @@ -0,0 +1,388 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-osd.c - osd support for testing overlays. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/font.h> +#include <linux/mutex.h> +#include <linux/videodev2.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/fb.h> +#include <media/videobuf2-vmalloc.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> +#include <media/v4l2-common.h> + +#include "vivid-core.h" +#include "vivid-osd.h" + +#define MAX_OSD_WIDTH 720 +#define MAX_OSD_HEIGHT 576 + +/* + * Order: white, yellow, cyan, green, magenta, red, blue, black, + * and same again with the alpha bit set (if any) + */ +static const u16 rgb555[16] = { + 0x7fff, 0x7fe0, 0x03ff, 0x03e0, 0x7c1f, 0x7c00, 0x001f, 0x0000, + 0xffff, 0xffe0, 0x83ff, 0x83e0, 0xfc1f, 0xfc00, 0x801f, 0x8000 +}; + +static const u16 rgb565[16] = { + 0xffff, 0xffe0, 0x07ff, 0x07e0, 0xf81f, 0xf800, 0x001f, 0x0000, + 0xffff, 0xffe0, 0x07ff, 0x07e0, 0xf81f, 0xf800, 0x001f, 0x0000 +}; + +void vivid_clear_fb(struct vivid_dev *dev) +{ + void *p = dev->video_vbase; + const u16 *rgb = rgb555; + unsigned x, y; + + if (dev->fb_defined.green.length == 6) + rgb = rgb565; + + for (y = 0; y < dev->display_height; y++) { + u16 *d = p; + + for (x = 0; x < dev->display_width; x++) + d[x] = rgb[(y / 16 + x / 16) % 16]; + p += dev->display_byte_stride; + } +} + +/* --------------------------------------------------------------------- */ + +static int vivid_fb_ioctl(struct fb_info *info, unsigned cmd, unsigned long arg) +{ + struct vivid_dev *dev = (struct vivid_dev *)info->par; + + switch (cmd) { + case FBIOGET_VBLANK: { + struct fb_vblank vblank; + + memset(&vblank, 0, sizeof(vblank)); + vblank.flags = FB_VBLANK_HAVE_COUNT | FB_VBLANK_HAVE_VCOUNT | + FB_VBLANK_HAVE_VSYNC; + vblank.count = 0; + vblank.vcount = 0; + vblank.hcount = 0; + if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank))) + return -EFAULT; + return 0; + } + + default: + dprintk(dev, 1, "Unknown ioctl %08x\n", cmd); + return -EINVAL; + } + return 0; +} + +/* Framebuffer device handling */ + +static int vivid_fb_set_var(struct vivid_dev *dev, struct fb_var_screeninfo *var) +{ + dprintk(dev, 1, "vivid_fb_set_var\n"); + + if (var->bits_per_pixel != 16) { + dprintk(dev, 1, "vivid_fb_set_var - Invalid bpp\n"); + return -EINVAL; + } + dev->display_byte_stride = var->xres * dev->bytes_per_pixel; + + return 0; +} + +static int vivid_fb_get_fix(struct vivid_dev *dev, struct fb_fix_screeninfo *fix) +{ + dprintk(dev, 1, "vivid_fb_get_fix\n"); + memset(fix, 0, sizeof(struct fb_fix_screeninfo)); + strscpy(fix->id, "vioverlay fb", sizeof(fix->id)); + fix->smem_start = dev->video_pbase; + fix->smem_len = dev->video_buffer_size; + fix->type = FB_TYPE_PACKED_PIXELS; + fix->visual = FB_VISUAL_TRUECOLOR; + fix->xpanstep = 1; + fix->ypanstep = 1; + fix->ywrapstep = 0; + fix->line_length = dev->display_byte_stride; + fix->accel = FB_ACCEL_NONE; + return 0; +} + +/* Check the requested display mode, returning -EINVAL if we can't + handle it. */ + +static int _vivid_fb_check_var(struct fb_var_screeninfo *var, struct vivid_dev *dev) +{ + dprintk(dev, 1, "vivid_fb_check_var\n"); + + var->bits_per_pixel = 16; + if (var->green.length == 5) { + var->red.offset = 10; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 5; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 15; + var->transp.length = 1; + } else { + var->red.offset = 11; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 6; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 0; + var->transp.length = 0; + } + var->xoffset = var->yoffset = 0; + var->left_margin = var->upper_margin = 0; + var->nonstd = 0; + + var->vmode &= ~FB_VMODE_MASK; + var->vmode |= FB_VMODE_NONINTERLACED; + + /* Dummy values */ + var->hsync_len = 24; + var->vsync_len = 2; + var->pixclock = 84316; + var->right_margin = 776; + var->lower_margin = 591; + return 0; +} + +static int vivid_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + struct vivid_dev *dev = (struct vivid_dev *) info->par; + + dprintk(dev, 1, "vivid_fb_check_var\n"); + return _vivid_fb_check_var(var, dev); +} + +static int vivid_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) +{ + return 0; +} + +static int vivid_fb_set_par(struct fb_info *info) +{ + int rc = 0; + struct vivid_dev *dev = (struct vivid_dev *) info->par; + + dprintk(dev, 1, "vivid_fb_set_par\n"); + + rc = vivid_fb_set_var(dev, &info->var); + vivid_fb_get_fix(dev, &info->fix); + return rc; +} + +static int vivid_fb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, + struct fb_info *info) +{ + u32 color, *palette; + + if (regno >= info->cmap.len) + return -EINVAL; + + color = ((transp & 0xFF00) << 16) | ((red & 0xFF00) << 8) | + (green & 0xFF00) | ((blue & 0xFF00) >> 8); + if (regno >= 16) + return -EINVAL; + + palette = info->pseudo_palette; + if (info->var.bits_per_pixel == 16) { + switch (info->var.green.length) { + case 6: + color = (red & 0xf800) | + ((green & 0xfc00) >> 5) | + ((blue & 0xf800) >> 11); + break; + case 5: + color = ((red & 0xf800) >> 1) | + ((green & 0xf800) >> 6) | + ((blue & 0xf800) >> 11) | + (transp ? 0x8000 : 0); + break; + } + } + palette[regno] = color; + return 0; +} + +/* We don't really support blanking. All this does is enable or + disable the OSD. */ +static int vivid_fb_blank(int blank_mode, struct fb_info *info) +{ + struct vivid_dev *dev = (struct vivid_dev *)info->par; + + dprintk(dev, 1, "Set blanking mode : %d\n", blank_mode); + switch (blank_mode) { + case FB_BLANK_UNBLANK: + break; + case FB_BLANK_NORMAL: + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + break; + } + return 0; +} + +static const struct fb_ops vivid_fb_ops = { + .owner = THIS_MODULE, + .fb_check_var = vivid_fb_check_var, + .fb_set_par = vivid_fb_set_par, + .fb_setcolreg = vivid_fb_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_cursor = NULL, + .fb_ioctl = vivid_fb_ioctl, + .fb_pan_display = vivid_fb_pan_display, + .fb_blank = vivid_fb_blank, +}; + +/* Initialization */ + + +/* Setup our initial video mode */ +static int vivid_fb_init_vidmode(struct vivid_dev *dev) +{ + struct v4l2_rect start_window; + + /* Color mode */ + + dev->bits_per_pixel = 16; + dev->bytes_per_pixel = dev->bits_per_pixel / 8; + + start_window.width = MAX_OSD_WIDTH; + start_window.left = 0; + + dev->display_byte_stride = start_window.width * dev->bytes_per_pixel; + + /* Vertical size & position */ + + start_window.height = MAX_OSD_HEIGHT; + start_window.top = 0; + + dev->display_width = start_window.width; + dev->display_height = start_window.height; + + /* Generate a valid fb_var_screeninfo */ + + dev->fb_defined.xres = dev->display_width; + dev->fb_defined.yres = dev->display_height; + dev->fb_defined.xres_virtual = dev->display_width; + dev->fb_defined.yres_virtual = dev->display_height; + dev->fb_defined.bits_per_pixel = dev->bits_per_pixel; + dev->fb_defined.vmode = FB_VMODE_NONINTERLACED; + dev->fb_defined.left_margin = start_window.left + 1; + dev->fb_defined.upper_margin = start_window.top + 1; + dev->fb_defined.accel_flags = FB_ACCEL_NONE; + dev->fb_defined.nonstd = 0; + /* set default to 1:5:5:5 */ + dev->fb_defined.green.length = 5; + + /* We've filled in the most data, let the usual mode check + routine fill in the rest. */ + _vivid_fb_check_var(&dev->fb_defined, dev); + + /* Generate valid fb_fix_screeninfo */ + + vivid_fb_get_fix(dev, &dev->fb_fix); + + /* Generate valid fb_info */ + + dev->fb_info.node = -1; + dev->fb_info.flags = FBINFO_FLAG_DEFAULT; + dev->fb_info.par = dev; + dev->fb_info.var = dev->fb_defined; + dev->fb_info.fix = dev->fb_fix; + dev->fb_info.screen_base = (u8 __iomem *)dev->video_vbase; + dev->fb_info.fbops = &vivid_fb_ops; + + /* Supply some monitor specs. Bogus values will do for now */ + dev->fb_info.monspecs.hfmin = 8000; + dev->fb_info.monspecs.hfmax = 70000; + dev->fb_info.monspecs.vfmin = 10; + dev->fb_info.monspecs.vfmax = 100; + + /* Allocate color map */ + if (fb_alloc_cmap(&dev->fb_info.cmap, 256, 1)) { + pr_err("abort, unable to alloc cmap\n"); + return -ENOMEM; + } + + /* Allocate the pseudo palette */ + dev->fb_info.pseudo_palette = kmalloc_array(16, sizeof(u32), GFP_KERNEL); + + return dev->fb_info.pseudo_palette ? 0 : -ENOMEM; +} + +/* Release any memory we've grabbed */ +void vivid_fb_release_buffers(struct vivid_dev *dev) +{ + if (dev->video_vbase == NULL) + return; + + /* Release cmap */ + if (dev->fb_info.cmap.len) + fb_dealloc_cmap(&dev->fb_info.cmap); + + /* Release pseudo palette */ + kfree(dev->fb_info.pseudo_palette); + kfree(dev->video_vbase); +} + +/* Initialize the specified card */ + +int vivid_fb_init(struct vivid_dev *dev) +{ + int ret; + + dev->video_buffer_size = MAX_OSD_HEIGHT * MAX_OSD_WIDTH * 2; + dev->video_vbase = kzalloc(dev->video_buffer_size, GFP_KERNEL); + if (dev->video_vbase == NULL) + return -ENOMEM; + dev->video_pbase = virt_to_phys(dev->video_vbase); + + pr_info("Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n", + dev->video_pbase, dev->video_vbase, + dev->video_buffer_size / 1024); + + /* Set the startup video mode information */ + ret = vivid_fb_init_vidmode(dev); + if (ret) { + vivid_fb_release_buffers(dev); + return ret; + } + + vivid_clear_fb(dev); + + /* Register the framebuffer */ + if (register_framebuffer(&dev->fb_info) < 0) { + vivid_fb_release_buffers(dev); + return -EINVAL; + } + + /* Set the card to the requested mode */ + vivid_fb_set_par(&dev->fb_info); + return 0; + +} diff --git a/drivers/media/test-drivers/vivid/vivid-osd.h b/drivers/media/test-drivers/vivid/vivid-osd.h new file mode 100644 index 000000000..f9ac1af25 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-osd.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-osd.h - output overlay support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_OSD_H_ +#define _VIVID_OSD_H_ + +int vivid_fb_init(struct vivid_dev *dev); +void vivid_fb_release_buffers(struct vivid_dev *dev); +void vivid_clear_fb(struct vivid_dev *dev); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-radio-common.c b/drivers/media/test-drivers/vivid/vivid-radio-common.c new file mode 100644 index 000000000..138c7bce6 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-common.c @@ -0,0 +1,177 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-radio-common.c - common radio rx/tx support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/videodev2.h> + +#include "vivid-core.h" +#include "vivid-ctrls.h" +#include "vivid-radio-common.h" +#include "vivid-rds-gen.h" + +/* + * These functions are shared between the vivid receiver and transmitter + * since both use the same frequency bands. + */ + +const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS] = { + /* Band FM */ + { + .type = V4L2_TUNER_RADIO, + .index = 0, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = FM_FREQ_RANGE_LOW, + .rangehigh = FM_FREQ_RANGE_HIGH, + .modulation = V4L2_BAND_MODULATION_FM, + }, + /* Band AM */ + { + .type = V4L2_TUNER_RADIO, + .index = 1, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = AM_FREQ_RANGE_LOW, + .rangehigh = AM_FREQ_RANGE_HIGH, + .modulation = V4L2_BAND_MODULATION_AM, + }, + /* Band SW */ + { + .type = V4L2_TUNER_RADIO, + .index = 2, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = SW_FREQ_RANGE_LOW, + .rangehigh = SW_FREQ_RANGE_HIGH, + .modulation = V4L2_BAND_MODULATION_AM, + }, +}; + +/* + * Initialize the RDS generator. If we can loop, then the RDS generator + * is set up with the values from the RDS TX controls, otherwise it + * will fill in standard values using one of two alternates. + */ +void vivid_radio_rds_init(struct vivid_dev *dev) +{ + struct vivid_rds_gen *rds = &dev->rds_gen; + bool alt = dev->radio_rx_rds_use_alternates; + + /* Do nothing, blocks will be filled by the transmitter */ + if (dev->radio_rds_loop && !dev->radio_tx_rds_controls) + return; + + if (dev->radio_rds_loop) { + v4l2_ctrl_lock(dev->radio_tx_rds_pi); + rds->picode = dev->radio_tx_rds_pi->cur.val; + rds->pty = dev->radio_tx_rds_pty->cur.val; + rds->mono_stereo = dev->radio_tx_rds_mono_stereo->cur.val; + rds->art_head = dev->radio_tx_rds_art_head->cur.val; + rds->compressed = dev->radio_tx_rds_compressed->cur.val; + rds->dyn_pty = dev->radio_tx_rds_dyn_pty->cur.val; + rds->ta = dev->radio_tx_rds_ta->cur.val; + rds->tp = dev->radio_tx_rds_tp->cur.val; + rds->ms = dev->radio_tx_rds_ms->cur.val; + strscpy(rds->psname, + dev->radio_tx_rds_psname->p_cur.p_char, + sizeof(rds->psname)); + strscpy(rds->radiotext, + dev->radio_tx_rds_radiotext->p_cur.p_char + alt * 64, + sizeof(rds->radiotext)); + v4l2_ctrl_unlock(dev->radio_tx_rds_pi); + } else { + vivid_rds_gen_fill(rds, dev->radio_rx_freq, alt); + } + if (dev->radio_rx_rds_controls) { + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_pty, rds->pty); + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ta, rds->ta); + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_tp, rds->tp); + v4l2_ctrl_s_ctrl(dev->radio_rx_rds_ms, rds->ms); + v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_psname, rds->psname); + v4l2_ctrl_s_ctrl_string(dev->radio_rx_rds_radiotext, rds->radiotext); + if (!dev->radio_rds_loop) + dev->radio_rx_rds_use_alternates = !dev->radio_rx_rds_use_alternates; + } + vivid_rds_generate(rds); +} + +/* + * Calculate the emulated signal quality taking into account the frequency + * the transmitter is using. + */ +static void vivid_radio_calc_sig_qual(struct vivid_dev *dev) +{ + int mod = 16000; + int delta = 800; + int sig_qual, sig_qual_tx = mod; + + /* + * For SW and FM there is a channel every 1000 kHz, for AM there is one + * every 100 kHz. + */ + if (dev->radio_rx_freq <= AM_FREQ_RANGE_HIGH) { + mod /= 10; + delta /= 10; + } + sig_qual = (dev->radio_rx_freq + delta) % mod - delta; + if (dev->has_radio_tx) + sig_qual_tx = dev->radio_rx_freq - dev->radio_tx_freq; + if (abs(sig_qual_tx) <= abs(sig_qual)) { + sig_qual = sig_qual_tx; + /* + * Zero the internal rds buffer if we are going to loop + * rds blocks. + */ + if (!dev->radio_rds_loop && !dev->radio_tx_rds_controls) + memset(dev->rds_gen.data, 0, + sizeof(dev->rds_gen.data)); + dev->radio_rds_loop = dev->radio_rx_freq >= FM_FREQ_RANGE_LOW; + } else { + dev->radio_rds_loop = false; + } + if (dev->radio_rx_freq <= AM_FREQ_RANGE_HIGH) + sig_qual *= 10; + dev->radio_rx_sig_qual = sig_qual; +} + +int vivid_radio_g_frequency(struct file *file, const unsigned *pfreq, struct v4l2_frequency *vf) +{ + if (vf->tuner != 0) + return -EINVAL; + vf->frequency = *pfreq; + return 0; +} + +int vivid_radio_s_frequency(struct file *file, unsigned *pfreq, const struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned freq; + unsigned band; + + if (vf->tuner != 0) + return -EINVAL; + + if (vf->frequency >= (FM_FREQ_RANGE_LOW + SW_FREQ_RANGE_HIGH) / 2) + band = BAND_FM; + else if (vf->frequency <= (AM_FREQ_RANGE_HIGH + SW_FREQ_RANGE_LOW) / 2) + band = BAND_AM; + else + band = BAND_SW; + + freq = clamp_t(u32, vf->frequency, vivid_radio_bands[band].rangelow, + vivid_radio_bands[band].rangehigh); + *pfreq = freq; + + /* + * For both receiver and transmitter recalculate the signal quality + * (since that depends on both frequencies) and re-init the rds + * generator. + */ + vivid_radio_calc_sig_qual(dev); + vivid_radio_rds_init(dev); + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-radio-common.h b/drivers/media/test-drivers/vivid/vivid-radio-common.h new file mode 100644 index 000000000..30a9900e5 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-common.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-radio-common.h - common radio rx/tx support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_RADIO_COMMON_H_ +#define _VIVID_RADIO_COMMON_H_ + +/* The supported radio frequency ranges in kHz */ +#define FM_FREQ_RANGE_LOW (64000U * 16U) +#define FM_FREQ_RANGE_HIGH (108000U * 16U) +#define AM_FREQ_RANGE_LOW (520U * 16U) +#define AM_FREQ_RANGE_HIGH (1710U * 16U) +#define SW_FREQ_RANGE_LOW (2300U * 16U) +#define SW_FREQ_RANGE_HIGH (26100U * 16U) + +enum { BAND_FM, BAND_AM, BAND_SW, TOT_BANDS }; + +extern const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS]; + +int vivid_radio_g_frequency(struct file *file, const unsigned *freq, struct v4l2_frequency *vf); +int vivid_radio_s_frequency(struct file *file, unsigned *freq, const struct v4l2_frequency *vf); + +void vivid_radio_rds_init(struct vivid_dev *dev); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-radio-rx.c b/drivers/media/test-drivers/vivid/vivid-radio-rx.c new file mode 100644 index 000000000..8bd09589f --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-rx.c @@ -0,0 +1,278 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-radio-rx.c - radio receiver support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <linux/sched/signal.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> + +#include "vivid-core.h" +#include "vivid-ctrls.h" +#include "vivid-radio-common.h" +#include "vivid-rds-gen.h" +#include "vivid-radio-rx.h" + +ssize_t vivid_radio_rx_read(struct file *file, char __user *buf, + size_t size, loff_t *offset) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rds_data *data = dev->rds_gen.data; + bool use_alternates; + ktime_t timestamp; + unsigned blk; + int perc; + int i; + + if (dev->radio_rx_rds_controls) + return -EINVAL; + if (size < sizeof(*data)) + return 0; + size = sizeof(*data) * (size / sizeof(*data)); + + if (mutex_lock_interruptible(&dev->mutex)) + return -ERESTARTSYS; + if (dev->radio_rx_rds_owner && + file->private_data != dev->radio_rx_rds_owner) { + mutex_unlock(&dev->mutex); + return -EBUSY; + } + if (dev->radio_rx_rds_owner == NULL) { + vivid_radio_rds_init(dev); + dev->radio_rx_rds_owner = file->private_data; + } + +retry: + timestamp = ktime_sub(ktime_get(), dev->radio_rds_init_time); + blk = ktime_divns(timestamp, VIVID_RDS_NSEC_PER_BLK); + use_alternates = (blk % VIVID_RDS_GEN_BLOCKS) & 1; + + if (dev->radio_rx_rds_last_block == 0 || + dev->radio_rx_rds_use_alternates != use_alternates) { + dev->radio_rx_rds_use_alternates = use_alternates; + /* Re-init the RDS generator */ + vivid_radio_rds_init(dev); + } + if (blk >= dev->radio_rx_rds_last_block + VIVID_RDS_GEN_BLOCKS) + dev->radio_rx_rds_last_block = blk - VIVID_RDS_GEN_BLOCKS + 1; + + /* + * No data is available if there hasn't been time to get new data, + * or if the RDS receiver has been disabled, or if we use the data + * from the RDS transmitter and that RDS transmitter has been disabled, + * or if the signal quality is too weak. + */ + if (blk == dev->radio_rx_rds_last_block || !dev->radio_rx_rds_enabled || + (dev->radio_rds_loop && !(dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) || + abs(dev->radio_rx_sig_qual) > 200) { + mutex_unlock(&dev->mutex); + if (file->f_flags & O_NONBLOCK) + return -EWOULDBLOCK; + if (msleep_interruptible(20) && signal_pending(current)) + return -EINTR; + if (mutex_lock_interruptible(&dev->mutex)) + return -ERESTARTSYS; + goto retry; + } + + /* abs(dev->radio_rx_sig_qual) <= 200, map that to a 0-50% range */ + perc = abs(dev->radio_rx_sig_qual) / 4; + + for (i = 0; i < size && blk > dev->radio_rx_rds_last_block; + dev->radio_rx_rds_last_block++) { + unsigned data_blk = dev->radio_rx_rds_last_block % VIVID_RDS_GEN_BLOCKS; + struct v4l2_rds_data rds = data[data_blk]; + + if (data_blk == 0 && dev->radio_rds_loop) + vivid_radio_rds_init(dev); + if (perc && prandom_u32_max(100) < perc) { + switch (prandom_u32_max(4)) { + case 0: + rds.block |= V4L2_RDS_BLOCK_CORRECTED; + break; + case 1: + rds.block |= V4L2_RDS_BLOCK_INVALID; + break; + case 2: + rds.block |= V4L2_RDS_BLOCK_ERROR; + rds.lsb = get_random_u8(); + rds.msb = get_random_u8(); + break; + case 3: /* Skip block altogether */ + if (i) + continue; + /* + * Must make sure at least one block is + * returned, otherwise the application + * might think that end-of-file occurred. + */ + break; + } + } + if (copy_to_user(buf + i, &rds, sizeof(rds))) { + i = -EFAULT; + break; + } + i += sizeof(rds); + } + mutex_unlock(&dev->mutex); + return i; +} + +__poll_t vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait) +{ + return EPOLLIN | EPOLLRDNORM | v4l2_ctrl_poll(file, wait); +} + +int vivid_radio_rx_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band) +{ + if (band->tuner != 0) + return -EINVAL; + + if (band->index >= TOT_BANDS) + return -EINVAL; + + *band = vivid_radio_bands[band->index]; + return 0; +} + +int vivid_radio_rx_s_hw_freq_seek(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned low, high; + unsigned freq; + unsigned spacing; + unsigned band; + + if (a->tuner) + return -EINVAL; + if (a->wrap_around && dev->radio_rx_hw_seek_mode == VIVID_HW_SEEK_BOUNDED) + return -EINVAL; + + if (!a->wrap_around && dev->radio_rx_hw_seek_mode == VIVID_HW_SEEK_WRAP) + return -EINVAL; + if (!a->rangelow ^ !a->rangehigh) + return -EINVAL; + + if (file->f_flags & O_NONBLOCK) + return -EWOULDBLOCK; + + if (a->rangelow) { + for (band = 0; band < TOT_BANDS; band++) + if (a->rangelow >= vivid_radio_bands[band].rangelow && + a->rangehigh <= vivid_radio_bands[band].rangehigh) + break; + if (band == TOT_BANDS) + return -EINVAL; + if (!dev->radio_rx_hw_seek_prog_lim && + (a->rangelow != vivid_radio_bands[band].rangelow || + a->rangehigh != vivid_radio_bands[band].rangehigh)) + return -EINVAL; + low = a->rangelow; + high = a->rangehigh; + } else { + for (band = 0; band < TOT_BANDS; band++) + if (dev->radio_rx_freq >= vivid_radio_bands[band].rangelow && + dev->radio_rx_freq <= vivid_radio_bands[band].rangehigh) + break; + if (band == TOT_BANDS) + return -EINVAL; + low = vivid_radio_bands[band].rangelow; + high = vivid_radio_bands[band].rangehigh; + } + spacing = band == BAND_AM ? 1600 : 16000; + freq = clamp(dev->radio_rx_freq, low, high); + + if (a->seek_upward) { + freq = spacing * (freq / spacing) + spacing; + if (freq > high) { + if (!a->wrap_around) + return -ENODATA; + freq = spacing * (low / spacing) + spacing; + if (freq >= dev->radio_rx_freq) + return -ENODATA; + } + } else { + freq = spacing * ((freq + spacing - 1) / spacing) - spacing; + if (freq < low) { + if (!a->wrap_around) + return -ENODATA; + freq = spacing * ((high + spacing - 1) / spacing) - spacing; + if (freq <= dev->radio_rx_freq) + return -ENODATA; + } + } + return 0; +} + +int vivid_radio_rx_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct vivid_dev *dev = video_drvdata(file); + int delta = 800; + int sig_qual; + + if (vt->index > 0) + return -EINVAL; + + strscpy(vt->name, "AM/FM/SW Receiver", sizeof(vt->name)); + vt->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_FREQ_BANDS | V4L2_TUNER_CAP_RDS | + (dev->radio_rx_rds_controls ? + V4L2_TUNER_CAP_RDS_CONTROLS : + V4L2_TUNER_CAP_RDS_BLOCK_IO) | + (dev->radio_rx_hw_seek_prog_lim ? + V4L2_TUNER_CAP_HWSEEK_PROG_LIM : 0); + switch (dev->radio_rx_hw_seek_mode) { + case VIVID_HW_SEEK_BOUNDED: + vt->capability |= V4L2_TUNER_CAP_HWSEEK_BOUNDED; + break; + case VIVID_HW_SEEK_WRAP: + vt->capability |= V4L2_TUNER_CAP_HWSEEK_WRAP; + break; + case VIVID_HW_SEEK_BOTH: + vt->capability |= V4L2_TUNER_CAP_HWSEEK_WRAP | + V4L2_TUNER_CAP_HWSEEK_BOUNDED; + break; + } + vt->rangelow = AM_FREQ_RANGE_LOW; + vt->rangehigh = FM_FREQ_RANGE_HIGH; + sig_qual = dev->radio_rx_sig_qual; + vt->signal = abs(sig_qual) > delta ? 0 : + 0xffff - ((unsigned)abs(sig_qual) * 0xffff) / delta; + vt->afc = sig_qual > delta ? 0 : sig_qual; + if (abs(sig_qual) > delta) + vt->rxsubchans = 0; + else if (dev->radio_rx_freq < FM_FREQ_RANGE_LOW || vt->signal < 0x8000) + vt->rxsubchans = V4L2_TUNER_SUB_MONO; + else if (dev->radio_rds_loop && !(dev->radio_tx_subchans & V4L2_TUNER_SUB_STEREO)) + vt->rxsubchans = V4L2_TUNER_SUB_MONO; + else + vt->rxsubchans = V4L2_TUNER_SUB_STEREO; + if (dev->radio_rx_rds_enabled && + (!dev->radio_rds_loop || (dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) && + dev->radio_rx_freq >= FM_FREQ_RANGE_LOW && vt->signal >= 0xc000) + vt->rxsubchans |= V4L2_TUNER_SUB_RDS; + if (dev->radio_rx_rds_controls) + vivid_radio_rds_init(dev); + vt->audmode = dev->radio_rx_audmode; + return 0; +} + +int vivid_radio_rx_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (vt->index) + return -EINVAL; + dev->radio_rx_audmode = vt->audmode >= V4L2_TUNER_MODE_STEREO; + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-radio-rx.h b/drivers/media/test-drivers/vivid/vivid-radio-rx.h new file mode 100644 index 000000000..c9c7849f6 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-rx.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-radio-rx.h - radio receiver support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_RADIO_RX_H_ +#define _VIVID_RADIO_RX_H_ + +ssize_t vivid_radio_rx_read(struct file *, char __user *, size_t, loff_t *); +__poll_t vivid_radio_rx_poll(struct file *file, struct poll_table_struct *wait); + +int vivid_radio_rx_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band); +int vivid_radio_rx_s_hw_freq_seek(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a); +int vivid_radio_rx_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt); +int vivid_radio_rx_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-radio-tx.c b/drivers/media/test-drivers/vivid/vivid-radio-tx.c new file mode 100644 index 000000000..049d40b94 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-tx.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-radio-tx.c - radio transmitter support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched/signal.h> +#include <linux/delay.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> + +#include "vivid-core.h" +#include "vivid-ctrls.h" +#include "vivid-radio-common.h" +#include "vivid-radio-tx.h" + +ssize_t vivid_radio_tx_write(struct file *file, const char __user *buf, + size_t size, loff_t *offset) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rds_data *data = dev->rds_gen.data; + ktime_t timestamp; + unsigned blk; + int i; + + if (dev->radio_tx_rds_controls) + return -EINVAL; + + if (size < sizeof(*data)) + return -EINVAL; + size = sizeof(*data) * (size / sizeof(*data)); + + if (mutex_lock_interruptible(&dev->mutex)) + return -ERESTARTSYS; + if (dev->radio_tx_rds_owner && + file->private_data != dev->radio_tx_rds_owner) { + mutex_unlock(&dev->mutex); + return -EBUSY; + } + dev->radio_tx_rds_owner = file->private_data; + +retry: + timestamp = ktime_sub(ktime_get(), dev->radio_rds_init_time); + blk = ktime_divns(timestamp, VIVID_RDS_NSEC_PER_BLK); + if (blk - VIVID_RDS_GEN_BLOCKS >= dev->radio_tx_rds_last_block) + dev->radio_tx_rds_last_block = blk - VIVID_RDS_GEN_BLOCKS + 1; + + /* + * No data is available if there hasn't been time to get new data, + * or if the RDS receiver has been disabled, or if we use the data + * from the RDS transmitter and that RDS transmitter has been disabled, + * or if the signal quality is too weak. + */ + if (blk == dev->radio_tx_rds_last_block || + !(dev->radio_tx_subchans & V4L2_TUNER_SUB_RDS)) { + mutex_unlock(&dev->mutex); + if (file->f_flags & O_NONBLOCK) + return -EWOULDBLOCK; + if (msleep_interruptible(20) && signal_pending(current)) + return -EINTR; + if (mutex_lock_interruptible(&dev->mutex)) + return -ERESTARTSYS; + goto retry; + } + + for (i = 0; i < size && blk > dev->radio_tx_rds_last_block; + dev->radio_tx_rds_last_block++) { + unsigned data_blk = dev->radio_tx_rds_last_block % VIVID_RDS_GEN_BLOCKS; + struct v4l2_rds_data rds; + + if (copy_from_user(&rds, buf + i, sizeof(rds))) { + i = -EFAULT; + break; + } + i += sizeof(rds); + if (!dev->radio_rds_loop) + continue; + if ((rds.block & V4L2_RDS_BLOCK_MSK) == V4L2_RDS_BLOCK_INVALID || + (rds.block & V4L2_RDS_BLOCK_ERROR)) + continue; + rds.block &= V4L2_RDS_BLOCK_MSK; + data[data_blk] = rds; + } + mutex_unlock(&dev->mutex); + return i; +} + +__poll_t vivid_radio_tx_poll(struct file *file, struct poll_table_struct *wait) +{ + return EPOLLOUT | EPOLLWRNORM | v4l2_ctrl_poll(file, wait); +} + +int vidioc_g_modulator(struct file *file, void *fh, struct v4l2_modulator *a) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (a->index > 0) + return -EINVAL; + + strscpy(a->name, "AM/FM/SW Transmitter", sizeof(a->name)); + a->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_FREQ_BANDS | V4L2_TUNER_CAP_RDS | + (dev->radio_tx_rds_controls ? + V4L2_TUNER_CAP_RDS_CONTROLS : + V4L2_TUNER_CAP_RDS_BLOCK_IO); + a->rangelow = AM_FREQ_RANGE_LOW; + a->rangehigh = FM_FREQ_RANGE_HIGH; + a->txsubchans = dev->radio_tx_subchans; + return 0; +} + +int vidioc_s_modulator(struct file *file, void *fh, const struct v4l2_modulator *a) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (a->index) + return -EINVAL; + if (a->txsubchans & ~0x13) + return -EINVAL; + dev->radio_tx_subchans = a->txsubchans; + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-radio-tx.h b/drivers/media/test-drivers/vivid/vivid-radio-tx.h new file mode 100644 index 000000000..c2bf1e7e6 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-radio-tx.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-radio-tx.h - radio transmitter support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_RADIO_TX_H_ +#define _VIVID_RADIO_TX_H_ + +ssize_t vivid_radio_tx_write(struct file *, const char __user *, size_t, loff_t *); +__poll_t vivid_radio_tx_poll(struct file *file, struct poll_table_struct *wait); + +int vidioc_g_modulator(struct file *file, void *fh, struct v4l2_modulator *a); +int vidioc_s_modulator(struct file *file, void *fh, const struct v4l2_modulator *a); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-rds-gen.c b/drivers/media/test-drivers/vivid/vivid-rds-gen.c new file mode 100644 index 000000000..c57771119 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-rds-gen.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-rds-gen.c - rds (radio data system) generator support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/kernel.h> +#include <linux/ktime.h> +#include <linux/string.h> +#include <linux/videodev2.h> + +#include "vivid-rds-gen.h" + +static u8 vivid_get_di(const struct vivid_rds_gen *rds, unsigned grp) +{ + switch (grp) { + case 0: + return (rds->dyn_pty << 2) | (grp & 3); + case 1: + return (rds->compressed << 2) | (grp & 3); + case 2: + return (rds->art_head << 2) | (grp & 3); + case 3: + return (rds->mono_stereo << 2) | (grp & 3); + } + return 0; +} + +/* + * This RDS generator creates 57 RDS groups (one group == four RDS blocks). + * Groups 0-3, 22-25 and 44-47 (spaced 22 groups apart) are filled with a + * standard 0B group containing the PI code and PS name. + * + * Groups 4-19 and 26-41 use group 2A for the radio text. + * + * Group 56 contains the time (group 4A). + * + * All remaining groups use a filler group 15B block that just repeats + * the PI and PTY codes. + */ +void vivid_rds_generate(struct vivid_rds_gen *rds) +{ + struct v4l2_rds_data *data = rds->data; + unsigned grp; + unsigned idx; + struct tm tm; + unsigned date; + unsigned time; + int l; + + for (grp = 0; grp < VIVID_RDS_GEN_GROUPS; grp++, data += VIVID_RDS_GEN_BLKS_PER_GRP) { + data[0].lsb = rds->picode & 0xff; + data[0].msb = rds->picode >> 8; + data[0].block = V4L2_RDS_BLOCK_A | (V4L2_RDS_BLOCK_A << 3); + data[1].lsb = rds->pty << 5; + data[1].msb = (rds->pty >> 3) | (rds->tp << 2); + data[1].block = V4L2_RDS_BLOCK_B | (V4L2_RDS_BLOCK_B << 3); + data[3].block = V4L2_RDS_BLOCK_D | (V4L2_RDS_BLOCK_D << 3); + + switch (grp) { + case 0 ... 3: + case 22 ... 25: + case 44 ... 47: /* Group 0B */ + idx = (grp % 22) % 4; + data[1].lsb |= (rds->ta << 4) | (rds->ms << 3); + data[1].lsb |= vivid_get_di(rds, idx); + data[1].msb |= 1 << 3; + data[2].lsb = rds->picode & 0xff; + data[2].msb = rds->picode >> 8; + data[2].block = V4L2_RDS_BLOCK_C_ALT | (V4L2_RDS_BLOCK_C_ALT << 3); + data[3].lsb = rds->psname[2 * idx + 1]; + data[3].msb = rds->psname[2 * idx]; + break; + case 4 ... 19: + case 26 ... 41: /* Group 2A */ + idx = ((grp - 4) % 22) % 16; + data[1].lsb |= idx; + data[1].msb |= 4 << 3; + data[2].msb = rds->radiotext[4 * idx]; + data[2].lsb = rds->radiotext[4 * idx + 1]; + data[2].block = V4L2_RDS_BLOCK_C | (V4L2_RDS_BLOCK_C << 3); + data[3].msb = rds->radiotext[4 * idx + 2]; + data[3].lsb = rds->radiotext[4 * idx + 3]; + break; + case 56: + /* + * Group 4A + * + * Uses the algorithm from Annex G of the RDS standard + * EN 50067:1998 to convert a UTC date to an RDS Modified + * Julian Day. + */ + time64_to_tm(ktime_get_real_seconds(), 0, &tm); + l = tm.tm_mon <= 1; + date = 14956 + tm.tm_mday + ((tm.tm_year - l) * 1461) / 4 + + ((tm.tm_mon + 2 + l * 12) * 306001) / 10000; + time = (tm.tm_hour << 12) | + (tm.tm_min << 6) | + (sys_tz.tz_minuteswest >= 0 ? 0x20 : 0) | + (abs(sys_tz.tz_minuteswest) / 30); + data[1].lsb &= ~3; + data[1].lsb |= date >> 15; + data[1].msb |= 8 << 3; + data[2].lsb = (date << 1) & 0xfe; + data[2].lsb |= (time >> 16) & 1; + data[2].msb = (date >> 7) & 0xff; + data[2].block = V4L2_RDS_BLOCK_C | (V4L2_RDS_BLOCK_C << 3); + data[3].lsb = time & 0xff; + data[3].msb = (time >> 8) & 0xff; + break; + default: /* Group 15B */ + data[1].lsb |= (rds->ta << 4) | (rds->ms << 3); + data[1].lsb |= vivid_get_di(rds, grp % 22); + data[1].msb |= 0x1f << 3; + data[2].lsb = rds->picode & 0xff; + data[2].msb = rds->picode >> 8; + data[2].block = V4L2_RDS_BLOCK_C_ALT | (V4L2_RDS_BLOCK_C_ALT << 3); + data[3].lsb = rds->pty << 5; + data[3].lsb |= (rds->ta << 4) | (rds->ms << 3); + data[3].lsb |= vivid_get_di(rds, grp % 22); + data[3].msb |= rds->pty >> 3; + data[3].msb |= 0x1f << 3; + break; + } + } +} + +void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq, + bool alt) +{ + /* Alternate PTY between Info and Weather */ + if (rds->use_rbds) { + rds->picode = 0x2e75; /* 'KLNX' call sign */ + rds->pty = alt ? 29 : 2; + } else { + rds->picode = 0x8088; + rds->pty = alt ? 16 : 3; + } + rds->mono_stereo = true; + rds->art_head = false; + rds->compressed = false; + rds->dyn_pty = false; + rds->tp = true; + rds->ta = alt; + rds->ms = true; + snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d", + (freq / 16) % 1000000, (((freq & 0xf) * 10) / 16) % 10); + if (alt) + strscpy(rds->radiotext, + " The Radio Data System can switch between different Radio Texts ", + sizeof(rds->radiotext)); + else + strscpy(rds->radiotext, + "An example of Radio Text as transmitted by the Radio Data System", + sizeof(rds->radiotext)); +} diff --git a/drivers/media/test-drivers/vivid/vivid-rds-gen.h b/drivers/media/test-drivers/vivid/vivid-rds-gen.h new file mode 100644 index 000000000..35ac57423 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-rds-gen.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-rds-gen.h - rds (radio data system) generator support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_RDS_GEN_H_ +#define _VIVID_RDS_GEN_H_ + +/* + * It takes almost exactly 5 seconds to transmit 57 RDS groups. + * Each group has 4 blocks and each block has a payload of 16 bits + a + * block identification. The driver will generate the contents of these + * 57 groups only when necessary and it will just be played continuously. + */ +#define VIVID_RDS_GEN_GROUPS 57 +#define VIVID_RDS_GEN_BLKS_PER_GRP 4 +#define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS) +#define VIVID_RDS_NSEC_PER_BLK (u32)(5ull * NSEC_PER_SEC / VIVID_RDS_GEN_BLOCKS) + +struct vivid_rds_gen { + struct v4l2_rds_data data[VIVID_RDS_GEN_BLOCKS]; + bool use_rbds; + u16 picode; + u8 pty; + bool mono_stereo; + bool art_head; + bool compressed; + bool dyn_pty; + bool ta; + bool tp; + bool ms; + char psname[8 + 1]; + char radiotext[64 + 1]; +}; + +void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq, + bool use_alternate); +void vivid_rds_generate(struct vivid_rds_gen *rds); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-sdr-cap.c b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c new file mode 100644 index 000000000..0ae5628b8 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c @@ -0,0 +1,574 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-sdr-cap.c - software defined radio support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/math64.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> +#include <linux/fixp-arith.h> +#include <linux/jiffies.h> + +#include "vivid-core.h" +#include "vivid-ctrls.h" +#include "vivid-sdr-cap.h" + +/* stream formats */ +struct vivid_format { + u32 pixelformat; + u32 buffersize; +}; + +/* format descriptions for capture and preview */ +static const struct vivid_format formats[] = { + { + .pixelformat = V4L2_SDR_FMT_CU8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, { + .pixelformat = V4L2_SDR_FMT_CS8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, +}; + +static const struct v4l2_frequency_band bands_adc[] = { + { + .tuner = 0, + .type = V4L2_TUNER_ADC, + .index = 0, + .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 300000, + .rangehigh = 300000, + }, + { + .tuner = 0, + .type = V4L2_TUNER_ADC, + .index = 1, + .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 900001, + .rangehigh = 2800000, + }, + { + .tuner = 0, + .type = V4L2_TUNER_ADC, + .index = 2, + .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 3200000, + .rangehigh = 3200000, + }, +}; + +/* ADC band midpoints */ +#define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2) +#define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2) + +static const struct v4l2_frequency_band bands_fm[] = { + { + .tuner = 1, + .type = V4L2_TUNER_RF, + .index = 0, + .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 50000000, + .rangehigh = 2000000000, + }, +}; + +static void vivid_thread_sdr_cap_tick(struct vivid_dev *dev) +{ + struct vivid_buffer *sdr_cap_buf = NULL; + + dprintk(dev, 1, "SDR Capture Thread Tick\n"); + + /* Drop a certain percentage of buffers. */ + if (dev->perc_dropped_buffers && + prandom_u32_max(100) < dev->perc_dropped_buffers) + return; + + spin_lock(&dev->slock); + if (!list_empty(&dev->sdr_cap_active)) { + sdr_cap_buf = list_entry(dev->sdr_cap_active.next, + struct vivid_buffer, list); + list_del(&sdr_cap_buf->list); + } + spin_unlock(&dev->slock); + + if (sdr_cap_buf) { + sdr_cap_buf->vb.sequence = dev->sdr_cap_with_seq_wrap_count; + v4l2_ctrl_request_setup(sdr_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_sdr_cap); + v4l2_ctrl_request_complete(sdr_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_sdr_cap); + vivid_sdr_cap_process(dev, sdr_cap_buf); + sdr_cap_buf->vb.vb2_buf.timestamp = + ktime_get_ns() + dev->time_wrap_offset; + vb2_buffer_done(&sdr_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dev->dqbuf_error = false; + } +} + +static int vivid_thread_sdr_cap(void *data) +{ + struct vivid_dev *dev = data; + u64 samples_since_start; + u64 buffers_since_start; + u64 next_jiffies_since_start; + unsigned long jiffies_since_start; + unsigned long cur_jiffies; + unsigned wait_jiffies; + + dprintk(dev, 1, "SDR Capture Thread Start\n"); + + set_freezable(); + + /* Resets frame counters */ + dev->sdr_cap_seq_offset = 0; + dev->sdr_cap_seq_count = 0; + dev->jiffies_sdr_cap = jiffies; + dev->sdr_cap_seq_resync = false; + if (dev->time_wrap) + dev->time_wrap_offset = dev->time_wrap - ktime_get_ns(); + else + dev->time_wrap_offset = 0; + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + if (!mutex_trylock(&dev->mutex)) { + schedule(); + continue; + } + + cur_jiffies = jiffies; + if (dev->sdr_cap_seq_resync) { + dev->jiffies_sdr_cap = cur_jiffies; + dev->sdr_cap_seq_offset = dev->sdr_cap_seq_count + 1; + dev->sdr_cap_seq_count = 0; + dev->sdr_cap_seq_resync = false; + } + /* Calculate the number of jiffies since we started streaming */ + jiffies_since_start = cur_jiffies - dev->jiffies_sdr_cap; + /* Get the number of buffers streamed since the start */ + buffers_since_start = + (u64)jiffies_since_start * dev->sdr_adc_freq + + (HZ * SDR_CAP_SAMPLES_PER_BUF) / 2; + do_div(buffers_since_start, HZ * SDR_CAP_SAMPLES_PER_BUF); + + /* + * After more than 0xf0000000 (rounded down to a multiple of + * 'jiffies-per-day' to ease jiffies_to_msecs calculation) + * jiffies have passed since we started streaming reset the + * counters and keep track of the sequence offset. + */ + if (jiffies_since_start > JIFFIES_RESYNC) { + dev->jiffies_sdr_cap = cur_jiffies; + dev->sdr_cap_seq_offset = buffers_since_start; + buffers_since_start = 0; + } + dev->sdr_cap_seq_count = + buffers_since_start + dev->sdr_cap_seq_offset; + dev->sdr_cap_with_seq_wrap_count = dev->sdr_cap_seq_count - dev->sdr_cap_seq_start; + + vivid_thread_sdr_cap_tick(dev); + mutex_unlock(&dev->mutex); + + /* + * Calculate the number of samples streamed since we started, + * not including the current buffer. + */ + samples_since_start = buffers_since_start * SDR_CAP_SAMPLES_PER_BUF; + + /* And the number of jiffies since we started */ + jiffies_since_start = jiffies - dev->jiffies_sdr_cap; + + /* Increase by the number of samples in one buffer */ + samples_since_start += SDR_CAP_SAMPLES_PER_BUF; + /* + * Calculate when that next buffer is supposed to start + * in jiffies since we started streaming. + */ + next_jiffies_since_start = samples_since_start * HZ + + dev->sdr_adc_freq / 2; + do_div(next_jiffies_since_start, dev->sdr_adc_freq); + /* If it is in the past, then just schedule asap */ + if (next_jiffies_since_start < jiffies_since_start) + next_jiffies_since_start = jiffies_since_start; + + wait_jiffies = next_jiffies_since_start - jiffies_since_start; + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && + !kthread_should_stop()) + schedule(); + } + dprintk(dev, 1, "SDR Capture Thread End\n"); + return 0; +} + +static int sdr_cap_queue_setup(struct vb2_queue *vq, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], struct device *alloc_devs[]) +{ + /* 2 = max 16-bit sample returned */ + sizes[0] = SDR_CAP_SAMPLES_PER_BUF * 2; + *nplanes = 1; + return 0; +} + +static int sdr_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned size = SDR_CAP_SAMPLES_PER_BUF * 2; + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void sdr_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->sdr_cap_active); + spin_unlock(&dev->slock); +} + +static int sdr_cap_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err = 0; + + dprintk(dev, 1, "%s\n", __func__); + dev->sdr_cap_seq_start = dev->seq_wrap * 128; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else if (dev->kthread_sdr_cap == NULL) { + dev->kthread_sdr_cap = kthread_run(vivid_thread_sdr_cap, dev, + "%s-sdr-cap", dev->v4l2_dev.name); + + if (IS_ERR(dev->kthread_sdr_cap)) { + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + err = PTR_ERR(dev->kthread_sdr_cap); + dev->kthread_sdr_cap = NULL; + } + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->sdr_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void sdr_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + if (dev->kthread_sdr_cap == NULL) + return; + + while (!list_empty(&dev->sdr_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->sdr_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_sdr_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } + + /* shutdown control thread */ + kthread_stop(dev->kthread_sdr_cap); + dev->kthread_sdr_cap = NULL; +} + +static void sdr_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_sdr_cap); +} + +const struct vb2_ops vivid_sdr_cap_qops = { + .queue_setup = sdr_cap_queue_setup, + .buf_prepare = sdr_cap_buf_prepare, + .buf_queue = sdr_cap_buf_queue, + .start_streaming = sdr_cap_start_streaming, + .stop_streaming = sdr_cap_stop_streaming, + .buf_request_complete = sdr_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vivid_sdr_enum_freq_bands(struct file *file, void *fh, + struct v4l2_frequency_band *band) +{ + switch (band->tuner) { + case 0: + if (band->index >= ARRAY_SIZE(bands_adc)) + return -EINVAL; + *band = bands_adc[band->index]; + return 0; + case 1: + if (band->index >= ARRAY_SIZE(bands_fm)) + return -EINVAL; + *band = bands_fm[band->index]; + return 0; + default: + return -EINVAL; + } +} + +int vivid_sdr_g_frequency(struct file *file, void *fh, + struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + + switch (vf->tuner) { + case 0: + vf->frequency = dev->sdr_adc_freq; + vf->type = V4L2_TUNER_ADC; + return 0; + case 1: + vf->frequency = dev->sdr_fm_freq; + vf->type = V4L2_TUNER_RF; + return 0; + default: + return -EINVAL; + } +} + +int vivid_sdr_s_frequency(struct file *file, void *fh, + const struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned freq = vf->frequency; + unsigned band; + + switch (vf->tuner) { + case 0: + if (vf->type != V4L2_TUNER_ADC) + return -EINVAL; + if (freq < BAND_ADC_0) + band = 0; + else if (freq < BAND_ADC_1) + band = 1; + else + band = 2; + + freq = clamp_t(unsigned, freq, + bands_adc[band].rangelow, + bands_adc[band].rangehigh); + + if (vb2_is_streaming(&dev->vb_sdr_cap_q) && + freq != dev->sdr_adc_freq) { + /* resync the thread's timings */ + dev->sdr_cap_seq_resync = true; + } + dev->sdr_adc_freq = freq; + return 0; + case 1: + if (vf->type != V4L2_TUNER_RF) + return -EINVAL; + dev->sdr_fm_freq = clamp_t(unsigned, freq, + bands_fm[0].rangelow, + bands_fm[0].rangehigh); + return 0; + default: + return -EINVAL; + } +} + +int vivid_sdr_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + switch (vt->index) { + case 0: + strscpy(vt->name, "ADC", sizeof(vt->name)); + vt->type = V4L2_TUNER_ADC; + vt->capability = + V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; + vt->rangelow = bands_adc[0].rangelow; + vt->rangehigh = bands_adc[2].rangehigh; + return 0; + case 1: + strscpy(vt->name, "RF", sizeof(vt->name)); + vt->type = V4L2_TUNER_RF; + vt->capability = + V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; + vt->rangelow = bands_fm[0].rangelow; + vt->rangehigh = bands_fm[0].rangehigh; + return 0; + default: + return -EINVAL; + } +} + +int vivid_sdr_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) +{ + if (vt->index > 1) + return -EINVAL; + return 0; +} + +int vidioc_enum_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) +{ + if (f->index >= ARRAY_SIZE(formats)) + return -EINVAL; + f->pixelformat = formats[f->index].pixelformat; + return 0; +} + +int vidioc_g_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + f->fmt.sdr.pixelformat = dev->sdr_pixelformat; + f->fmt.sdr.buffersize = dev->sdr_buffersize; + return 0; +} + +int vidioc_s_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct vb2_queue *q = &dev->vb_sdr_cap_q; + int i; + + if (vb2_is_busy(q)) + return -EBUSY; + + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + dev->sdr_pixelformat = formats[i].pixelformat; + dev->sdr_buffersize = formats[i].buffersize; + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + dev->sdr_pixelformat = formats[0].pixelformat; + dev->sdr_buffersize = formats[0].buffersize; + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; + return 0; +} + +int vidioc_try_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; + return 0; +} + +#define FIXP_N (15) +#define FIXP_FRAC (1 << FIXP_N) +#define FIXP_2PI ((int)(2 * 3.141592653589 * FIXP_FRAC)) +#define M_100000PI (3.14159 * 100000) + +void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + unsigned long i; + unsigned long plane_size = vb2_plane_size(&buf->vb.vb2_buf, 0); + s64 s64tmp; + s32 src_phase_step; + s32 mod_phase_step; + s32 fixp_i; + s32 fixp_q; + + /* calculate phase step */ + #define BEEP_FREQ 1000 /* 1kHz beep */ + src_phase_step = DIV_ROUND_CLOSEST(FIXP_2PI * BEEP_FREQ, + dev->sdr_adc_freq); + + for (i = 0; i < plane_size; i += 2) { + mod_phase_step = fixp_cos32_rad(dev->sdr_fixp_src_phase, + FIXP_2PI) >> (31 - FIXP_N); + + dev->sdr_fixp_src_phase += src_phase_step; + s64tmp = (s64) mod_phase_step * dev->sdr_fm_deviation; + dev->sdr_fixp_mod_phase += div_s64(s64tmp, M_100000PI); + + /* + * Transfer phase angle to [0, 2xPI] in order to avoid variable + * overflow and make it suitable for cosine implementation + * used, which does not support negative angles. + */ + dev->sdr_fixp_src_phase %= FIXP_2PI; + dev->sdr_fixp_mod_phase %= FIXP_2PI; + + if (dev->sdr_fixp_mod_phase < 0) + dev->sdr_fixp_mod_phase += FIXP_2PI; + + fixp_i = fixp_cos32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI); + fixp_q = fixp_sin32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI); + + /* Normalize fraction values represented with 32 bit precision + * to fixed point representation with FIXP_N bits */ + fixp_i >>= (31 - FIXP_N); + fixp_q >>= (31 - FIXP_N); + + switch (dev->sdr_pixelformat) { + case V4L2_SDR_FMT_CU8: + /* convert 'fixp float' to u8 [0, +255] */ + /* u8 = X * 127.5 + 127.5; X is float [-1.0, +1.0] */ + fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275; + fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + case V4L2_SDR_FMT_CS8: + /* convert 'fixp float' to s8 [-128, +127] */ + /* s8 = X * 127.5 - 0.5; X is float [-1.0, +1.0] */ + fixp_i = fixp_i * 1275 - FIXP_FRAC * 5; + fixp_q = fixp_q * 1275 - FIXP_FRAC * 5; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + default: + break; + } + } +} diff --git a/drivers/media/test-drivers/vivid/vivid-sdr-cap.h b/drivers/media/test-drivers/vivid/vivid-sdr-cap.h new file mode 100644 index 000000000..813c9248e --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-sdr-cap.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-sdr-cap.h - software defined radio support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_SDR_CAP_H_ +#define _VIVID_SDR_CAP_H_ + +int vivid_sdr_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band); +int vivid_sdr_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf); +int vivid_sdr_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf); +int vivid_sdr_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt); +int vivid_sdr_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt); +int vidioc_enum_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f); +int vidioc_g_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); +int vidioc_s_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); +int vidioc_try_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); +void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf); + +extern const struct vb2_ops vivid_sdr_cap_qops; + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c new file mode 100644 index 000000000..6cc32eb54 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c @@ -0,0 +1,341 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-touch-cap.c - touch support functions. + */ + +#include "vivid-core.h" +#include "vivid-kthread-touch.h" +#include "vivid-vid-common.h" +#include "vivid-touch-cap.h" + +static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + struct v4l2_pix_format *f = &dev->tch_format; + unsigned int size = f->sizeimage; + + if (*nplanes) { + if (sizes[0] < size) + return -EINVAL; + } else { + sizes[0] = size; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int touch_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct v4l2_pix_format *f = &dev->tch_format; + unsigned int size = f->sizeimage; + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void touch_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + vbuf->field = V4L2_FIELD_NONE; + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->touch_cap_active); + spin_unlock(&dev->slock); +} + +static int touch_cap_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dev->touch_cap_seq_count = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_touch_cap(dev); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, + &dev->touch_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void touch_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + vivid_stop_generating_touch_cap(dev); +} + +static void touch_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_touch_cap); +} + +const struct vb2_ops vivid_touch_cap_qops = { + .queue_setup = touch_cap_queue_setup, + .buf_prepare = touch_cap_buf_prepare, + .buf_queue = touch_cap_buf_queue, + .start_streaming = touch_cap_start_streaming, + .stop_streaming = touch_cap_stop_streaming, + .buf_request_complete = touch_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vivid_enum_fmt_tch(struct file *file, void *priv, struct v4l2_fmtdesc *f) +{ + if (f->index) + return -EINVAL; + + f->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + return 0; +} + +int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + f->fmt.pix = dev->tch_format; + return 0; +} + +int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_format sp_fmt; + + if (!dev->multiplanar) + return -ENOTTY; + sp_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + sp_fmt.fmt.pix = dev->tch_format; + fmt_sp2mp(&sp_fmt, f); + return 0; +} + +int vivid_g_parm_tch(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (parm->type != (dev->multiplanar ? + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : + V4L2_BUF_TYPE_VIDEO_CAPTURE)) + return -EINVAL; + + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe = dev->timeperframe_tch_cap; + parm->parm.capture.readbuffers = 1; + return 0; +} + +int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp) +{ + if (inp->index) + return -EINVAL; + + inp->type = V4L2_INPUT_TYPE_TOUCH; + strscpy(inp->name, "Vivid Touch", sizeof(inp->name)); + inp->capabilities = 0; + return 0; +} + +int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +int vivid_set_touch(struct vivid_dev *dev, unsigned int i) +{ + struct v4l2_pix_format *f = &dev->tch_format; + + if (i) + return -EINVAL; + + f->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + f->width = VIVID_TCH_WIDTH; + f->height = VIVID_TCH_HEIGHT; + f->field = V4L2_FIELD_NONE; + f->colorspace = V4L2_COLORSPACE_RAW; + f->bytesperline = f->width * sizeof(s16); + f->sizeimage = f->width * f->height * sizeof(s16); + return 0; +} + +int vivid_s_input_tch(struct file *file, void *priv, unsigned int i) +{ + return vivid_set_touch(video_drvdata(file), i); +} + +static void vivid_fill_buff_noise(__s16 *tch_buf, int size) +{ + int i; + + /* Fill 10% of the values within range -3 and 3, zero the others */ + for (i = 0; i < size; i++) { + unsigned int rand = get_random_u32(); + + if (rand % 10) + tch_buf[i] = 0; + else + tch_buf[i] = (rand / 10) % 7 - 3; + } +} + +static inline int get_random_pressure(void) +{ + return prandom_u32_max(VIVID_PRESSURE_LIMIT); +} + +static void vivid_tch_buf_set(struct v4l2_pix_format *f, + __s16 *tch_buf, + int index) +{ + unsigned int x = index % f->width; + unsigned int y = index / f->width; + unsigned int offset = VIVID_MIN_PRESSURE; + + tch_buf[index] = offset + get_random_pressure(); + offset /= 2; + if (x) + tch_buf[index - 1] = offset + get_random_pressure(); + if (x < f->width - 1) + tch_buf[index + 1] = offset + get_random_pressure(); + if (y) + tch_buf[index - f->width] = offset + get_random_pressure(); + if (y < f->height - 1) + tch_buf[index + f->width] = offset + get_random_pressure(); + offset /= 2; + if (x && y) + tch_buf[index - 1 - f->width] = offset + get_random_pressure(); + if (x < f->width - 1 && y) + tch_buf[index + 1 - f->width] = offset + get_random_pressure(); + if (x && y < f->height - 1) + tch_buf[index - 1 + f->width] = offset + get_random_pressure(); + if (x < f->width - 1 && y < f->height - 1) + tch_buf[index + 1 + f->width] = offset + get_random_pressure(); +} + +void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + struct v4l2_pix_format *f = &dev->tch_format; + int size = f->width * f->height; + int x, y, xstart, ystart, offset_x, offset_y; + unsigned int test_pattern, test_pat_idx, rand; + + __s16 *tch_buf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + buf->vb.sequence = dev->touch_cap_with_seq_wrap_count; + test_pattern = (buf->vb.sequence / TCH_SEQ_COUNT) % TEST_CASE_MAX; + test_pat_idx = buf->vb.sequence % TCH_SEQ_COUNT; + + vivid_fill_buff_noise(tch_buf, size); + + if (test_pat_idx >= TCH_PATTERN_COUNT) + return; + + if (test_pat_idx == 0) + dev->tch_pat_random = get_random_u32(); + rand = dev->tch_pat_random; + + switch (test_pattern) { + case SINGLE_TAP: + if (test_pat_idx == 2) + vivid_tch_buf_set(f, tch_buf, rand % size); + break; + case DOUBLE_TAP: + if (test_pat_idx == 2 || test_pat_idx == 4) + vivid_tch_buf_set(f, tch_buf, rand % size); + break; + case TRIPLE_TAP: + if (test_pat_idx == 2 || test_pat_idx == 4 || test_pat_idx == 6) + vivid_tch_buf_set(f, tch_buf, rand % size); + break; + case MOVE_LEFT_TO_RIGHT: + vivid_tch_buf_set(f, tch_buf, + (rand % f->height) * f->width + + test_pat_idx * + (f->width / TCH_PATTERN_COUNT)); + break; + case ZOOM_IN: + x = f->width / 2; + y = f->height / 2; + offset_x = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * x) / + TCH_PATTERN_COUNT; + offset_y = ((TCH_PATTERN_COUNT - 1 - test_pat_idx) * y) / + TCH_PATTERN_COUNT; + vivid_tch_buf_set(f, tch_buf, + (x - offset_x) + f->width * (y - offset_y)); + vivid_tch_buf_set(f, tch_buf, + (x + offset_x) + f->width * (y + offset_y)); + break; + case ZOOM_OUT: + x = f->width / 2; + y = f->height / 2; + offset_x = (test_pat_idx * x) / TCH_PATTERN_COUNT; + offset_y = (test_pat_idx * y) / TCH_PATTERN_COUNT; + vivid_tch_buf_set(f, tch_buf, + (x - offset_x) + f->width * (y - offset_y)); + vivid_tch_buf_set(f, tch_buf, + (x + offset_x) + f->width * (y + offset_y)); + break; + case PALM_PRESS: + for (x = 0; x < f->width; x++) + for (y = f->height / 2; y < f->height; y++) + tch_buf[x + f->width * y] = VIVID_MIN_PRESSURE + + get_random_pressure(); + break; + case MULTIPLE_PRESS: + /* 16 pressure points */ + for (y = 0; y < 4; y++) { + for (x = 0; x < 4; x++) { + ystart = (y * f->height) / 4 + f->height / 8; + xstart = (x * f->width) / 4 + f->width / 8; + vivid_tch_buf_set(f, tch_buf, + ystart * f->width + xstart); + } + } + break; + } +#ifdef __BIG_ENDIAN__ + for (x = 0; x < size; x++) + tch_buf[x] = (__force s16)__cpu_to_le16((u16)tch_buf[x]); +#endif +} diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.h b/drivers/media/test-drivers/vivid/vivid-touch-cap.h new file mode 100644 index 000000000..07e514046 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-touch-cap.h - touch support functions. + */ +#ifndef _VIVID_TOUCH_CAP_H_ +#define _VIVID_TOUCH_CAP_H_ + +#define VIVID_TCH_HEIGHT 12 +#define VIVID_TCH_WIDTH 21 +#define VIVID_MIN_PRESSURE 180 +#define VIVID_PRESSURE_LIMIT 40 +#define TCH_SEQ_COUNT 16 +#define TCH_PATTERN_COUNT 12 + +enum vivid_tch_test { + SINGLE_TAP, + DOUBLE_TAP, + TRIPLE_TAP, + MOVE_LEFT_TO_RIGHT, + ZOOM_IN, + ZOOM_OUT, + PALM_PRESS, + MULTIPLE_PRESS, + TEST_CASE_MAX +}; + +extern const struct vb2_ops vivid_touch_cap_qops; + +int vivid_enum_fmt_tch(struct file *file, void *priv, struct v4l2_fmtdesc *f); +int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f); +int vivid_g_fmt_tch_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp); +int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i); +int vivid_s_input_tch(struct file *file, void *priv, unsigned int i); +void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf); +int vivid_set_touch(struct vivid_dev *dev, unsigned int i); +int vivid_g_parm_tch(struct file *file, void *priv, + struct v4l2_streamparm *parm); +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c new file mode 100644 index 000000000..b65b02eee --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c @@ -0,0 +1,361 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vbi-cap.c - vbi capture support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> + +#include "vivid-core.h" +#include "vivid-kthread-cap.h" +#include "vivid-vbi-cap.h" +#include "vivid-vbi-gen.h" + +static void vivid_sliced_vbi_cap_fill(struct vivid_dev *dev, unsigned seqnr) +{ + struct vivid_vbi_gen_data *vbi_gen = &dev->vbi_gen; + bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + + vivid_vbi_gen_sliced(vbi_gen, is_60hz, seqnr); + + if (!is_60hz) { + if (dev->loop_video) { + if (dev->vbi_out_have_wss) { + vbi_gen->data[12].data[0] = dev->vbi_out_wss[0]; + vbi_gen->data[12].data[1] = dev->vbi_out_wss[1]; + } else { + vbi_gen->data[12].id = 0; + } + } else { + switch (tpg_g_video_aspect(&dev->tpg)) { + case TPG_VIDEO_ASPECT_14X9_CENTRE: + vbi_gen->data[12].data[0] = 0x01; + break; + case TPG_VIDEO_ASPECT_16X9_CENTRE: + vbi_gen->data[12].data[0] = 0x0b; + break; + case TPG_VIDEO_ASPECT_16X9_ANAMORPHIC: + vbi_gen->data[12].data[0] = 0x07; + break; + case TPG_VIDEO_ASPECT_4X3: + default: + vbi_gen->data[12].data[0] = 0x08; + break; + } + } + } else if (dev->loop_video && is_60hz) { + if (dev->vbi_out_have_cc[0]) { + vbi_gen->data[0].data[0] = dev->vbi_out_cc[0][0]; + vbi_gen->data[0].data[1] = dev->vbi_out_cc[0][1]; + } else { + vbi_gen->data[0].id = 0; + } + if (dev->vbi_out_have_cc[1]) { + vbi_gen->data[1].data[0] = dev->vbi_out_cc[1][0]; + vbi_gen->data[1].data[1] = dev->vbi_out_cc[1][1]; + } else { + vbi_gen->data[1].id = 0; + } + } +} + +static void vivid_g_fmt_vbi_cap(struct vivid_dev *dev, struct v4l2_vbi_format *vbi) +{ + bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + + vbi->sampling_rate = 27000000; + vbi->offset = 24; + vbi->samples_per_line = 1440; + vbi->sample_format = V4L2_PIX_FMT_GREY; + vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5; + vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5; + vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18; + vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0; + vbi->reserved[0] = 0; + vbi->reserved[1] = 0; +} + +void vivid_raw_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + struct v4l2_vbi_format vbi; + u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + vivid_g_fmt_vbi_cap(dev, &vbi); + buf->vb.sequence = dev->vbi_cap_seq_count; + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + buf->vb.sequence /= 2; + + vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence); + + memset(vbuf, 0x10, vb2_plane_size(&buf->vb.vb2_buf, 0)); + + if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) + vivid_vbi_gen_raw(&dev->vbi_gen, &vbi, vbuf); +} + + +void vivid_sliced_vbi_cap_process(struct vivid_dev *dev, + struct vivid_buffer *buf) +{ + struct v4l2_sliced_vbi_data *vbuf = + vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + buf->vb.sequence = dev->vbi_cap_seq_count; + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + buf->vb.sequence /= 2; + + vivid_sliced_vbi_cap_fill(dev, buf->vb.sequence); + + memset(vbuf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0)); + if (!VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) { + unsigned i; + + for (i = 0; i < 25; i++) + vbuf[i] = dev->vbi_gen.data[i]; + } +} + +static int vbi_cap_queue_setup(struct vb2_queue *vq, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ? + 36 * sizeof(struct v4l2_sliced_vbi_data) : + 1440 * 2 * (is_60hz ? 12 : 18); + + if (!vivid_is_sdtv_cap(dev)) + return -EINVAL; + + sizes[0] = size; + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int vbi_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ? + 36 * sizeof(struct v4l2_sliced_vbi_data) : + 1440 * 2 * (is_60hz ? 12 : 18); + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void vbi_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->vbi_cap_active); + spin_unlock(&dev->slock); +} + +static int vbi_cap_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dprintk(dev, 1, "%s\n", __func__); + dev->vbi_cap_seq_count = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_cap(dev, &dev->vbi_cap_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->vbi_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void vbi_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_cap(dev, &dev->vbi_cap_streaming); +} + +static void vbi_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vbi_cap); +} + +const struct vb2_ops vivid_vbi_cap_qops = { + .queue_setup = vbi_cap_queue_setup, + .buf_prepare = vbi_cap_buf_prepare, + .buf_queue = vbi_cap_buf_queue, + .start_streaming = vbi_cap_start_streaming, + .stop_streaming = vbi_cap_stop_streaming, + .buf_request_complete = vbi_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_vbi_format *vbi = &f->fmt.vbi; + + if (!vivid_is_sdtv_cap(dev) || !dev->has_raw_vbi_cap) + return -EINVAL; + + vivid_g_fmt_vbi_cap(dev, vbi); + return 0; +} + +int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + int ret = vidioc_g_fmt_vbi_cap(file, priv, f); + + if (ret) + return ret; + if (f->type != V4L2_BUF_TYPE_VBI_CAPTURE && vb2_is_busy(&dev->vb_vbi_cap_q)) + return -EBUSY; + return 0; +} + +void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set) +{ + vbi->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + vbi->service_set = service_set; + memset(vbi->service_lines, 0, sizeof(vbi->service_lines)); + memset(vbi->reserved, 0, sizeof(vbi->reserved)); + + if (vbi->service_set == 0) + return; + + if (vbi->service_set & V4L2_SLICED_CAPTION_525) { + vbi->service_lines[0][21] = V4L2_SLICED_CAPTION_525; + vbi->service_lines[1][21] = V4L2_SLICED_CAPTION_525; + } + if (vbi->service_set & V4L2_SLICED_WSS_625) { + unsigned i; + + for (i = 7; i <= 18; i++) + vbi->service_lines[0][i] = + vbi->service_lines[1][i] = V4L2_SLICED_TELETEXT_B; + vbi->service_lines[0][23] = V4L2_SLICED_WSS_625; + } +} + +int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + + if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap) + return -EINVAL; + + vivid_fill_service_lines(vbi, dev->service_set_cap); + return 0; +} + +int vidioc_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + u32 service_set = vbi->service_set; + + if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap) + return -EINVAL; + + service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 : + V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + vivid_fill_service_lines(vbi, service_set); + return 0; +} + +int vidioc_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + int ret = vidioc_try_fmt_sliced_vbi_cap(file, fh, fmt); + + if (ret) + return ret; + if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE && vb2_is_busy(&dev->vb_vbi_cap_q)) + return -EBUSY; + dev->service_set_cap = vbi->service_set; + return 0; +} + +int vidioc_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *cap) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + bool is_60hz; + + if (vdev->vfl_dir == VFL_DIR_RX) { + is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60; + if (!vivid_is_sdtv_cap(dev) || !dev->has_sliced_vbi_cap || + cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) + return -EINVAL; + } else { + is_60hz = dev->std_out & V4L2_STD_525_60; + if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out || + cap->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) + return -EINVAL; + } + + cap->service_set = is_60hz ? V4L2_SLICED_CAPTION_525 : + V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + if (is_60hz) { + cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525; + cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525; + } else { + unsigned i; + + for (i = 7; i <= 18; i++) + cap->service_lines[0][i] = + cap->service_lines[1][i] = V4L2_SLICED_TELETEXT_B; + cap->service_lines[0][23] = V4L2_SLICED_WSS_625; + } + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.h b/drivers/media/test-drivers/vivid/vivid-vbi-cap.h new file mode 100644 index 000000000..91d2de013 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vbi-cap.h - vbi capture support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VBI_CAP_H_ +#define _VIVID_VBI_CAP_H_ + +void vivid_fill_time_of_day_packet(u8 *packet); +void vivid_raw_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf); +void vivid_sliced_vbi_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf); +void vivid_sliced_vbi_out_process(struct vivid_dev *dev, struct vivid_buffer *buf); +int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, + struct v4l2_format *f); +int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, + struct v4l2_format *f); +int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt); +int vidioc_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt); +int vidioc_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt); +int vidioc_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *cap); + +void vivid_fill_service_lines(struct v4l2_sliced_vbi_format *vbi, u32 service_set); + +extern const struct vb2_ops vivid_vbi_cap_qops; + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.c b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c new file mode 100644 index 000000000..a141369a7 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-gen.c @@ -0,0 +1,311 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vbi-gen.c - vbi generator support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/ktime.h> +#include <linux/string.h> +#include <linux/videodev2.h> + +#include "vivid-vbi-gen.h" + +static void wss_insert(u8 *wss, u32 val, unsigned size) +{ + while (size--) + *wss++ = (val & (1 << size)) ? 0xc0 : 0x10; +} + +static void vivid_vbi_gen_wss_raw(const struct v4l2_sliced_vbi_data *data, + u8 *buf, unsigned sampling_rate) +{ + const unsigned rate = 5000000; /* WSS has a 5 MHz transmission rate */ + u8 wss[29 + 24 + 24 + 24 + 18 + 18] = { 0 }; + const unsigned zero = 0x07; + const unsigned one = 0x38; + unsigned bit = 0; + u16 wss_data; + int i; + + wss_insert(wss + bit, 0x1f1c71c7, 29); bit += 29; + wss_insert(wss + bit, 0x1e3c1f, 24); bit += 24; + + wss_data = (data->data[1] << 8) | data->data[0]; + for (i = 0; i <= 13; i++, bit += 6) + wss_insert(wss + bit, (wss_data & (1 << i)) ? one : zero, 6); + + for (i = 0, bit = 0; bit < sizeof(wss); bit++) { + unsigned n = ((bit + 1) * sampling_rate) / rate; + + while (i < n) + buf[i++] = wss[bit]; + } +} + +static void vivid_vbi_gen_teletext_raw(const struct v4l2_sliced_vbi_data *data, + u8 *buf, unsigned sampling_rate) +{ + const unsigned rate = 6937500 / 10; /* Teletext has a 6.9375 MHz transmission rate */ + u8 teletext[45] = { 0x55, 0x55, 0x27 }; + unsigned bit = 0; + int i; + + memcpy(teletext + 3, data->data, sizeof(teletext) - 3); + /* prevents 32 bit overflow */ + sampling_rate /= 10; + + for (i = 0, bit = 0; bit < sizeof(teletext) * 8; bit++) { + unsigned n = ((bit + 1) * sampling_rate) / rate; + u8 val = (teletext[bit / 8] & (1 << (bit & 7))) ? 0xc0 : 0x10; + + while (i < n) + buf[i++] = val; + } +} + +static void cc_insert(u8 *cc, u8 ch) +{ + unsigned tot = 0; + unsigned i; + + for (i = 0; i < 7; i++) { + cc[2 * i] = cc[2 * i + 1] = (ch & (1 << i)) ? 1 : 0; + tot += cc[2 * i]; + } + cc[14] = cc[15] = !(tot & 1); +} + +#define CC_PREAMBLE_BITS (14 + 4 + 2) + +static void vivid_vbi_gen_cc_raw(const struct v4l2_sliced_vbi_data *data, + u8 *buf, unsigned sampling_rate) +{ + const unsigned rate = 1000000; /* CC has a 1 MHz transmission rate */ + + u8 cc[CC_PREAMBLE_BITS + 2 * 16] = { + /* Clock run-in: 7 cycles */ + 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, + /* 2 cycles of 0 */ + 0, 0, 0, 0, + /* Start bit of 1 (each bit is two cycles) */ + 1, 1 + }; + unsigned bit, i; + + cc_insert(cc + CC_PREAMBLE_BITS, data->data[0]); + cc_insert(cc + CC_PREAMBLE_BITS + 16, data->data[1]); + + for (i = 0, bit = 0; bit < sizeof(cc); bit++) { + unsigned n = ((bit + 1) * sampling_rate) / rate; + + while (i < n) + buf[i++] = cc[bit] ? 0xc0 : 0x10; + } +} + +void vivid_vbi_gen_raw(const struct vivid_vbi_gen_data *vbi, + const struct v4l2_vbi_format *vbi_fmt, u8 *buf) +{ + unsigned idx; + + for (idx = 0; idx < 25; idx++) { + const struct v4l2_sliced_vbi_data *data = vbi->data + idx; + unsigned start_2nd_field; + unsigned line = data->line; + u8 *linebuf = buf; + + start_2nd_field = (data->id & V4L2_SLICED_VBI_525) ? 263 : 313; + if (data->field) + line += start_2nd_field; + line -= vbi_fmt->start[data->field]; + + if (vbi_fmt->flags & V4L2_VBI_INTERLACED) + linebuf += (line * 2 + data->field) * + vbi_fmt->samples_per_line; + else + linebuf += (line + data->field * vbi_fmt->count[0]) * + vbi_fmt->samples_per_line; + if (data->id == V4L2_SLICED_CAPTION_525) + vivid_vbi_gen_cc_raw(data, linebuf, vbi_fmt->sampling_rate); + else if (data->id == V4L2_SLICED_WSS_625) + vivid_vbi_gen_wss_raw(data, linebuf, vbi_fmt->sampling_rate); + else if (data->id == V4L2_SLICED_TELETEXT_B) + vivid_vbi_gen_teletext_raw(data, linebuf, vbi_fmt->sampling_rate); + } +} + +static const u8 vivid_cc_sequence1[30] = { + 0x14, 0x20, /* Resume Caption Loading */ + 'H', 'e', + 'l', 'l', + 'o', ' ', + 'w', 'o', + 'r', 'l', + 'd', '!', + 0x14, 0x2f, /* End of Caption */ +}; + +static const u8 vivid_cc_sequence2[30] = { + 0x14, 0x20, /* Resume Caption Loading */ + 'C', 'l', + 'o', 's', + 'e', 'd', + ' ', 'c', + 'a', 'p', + 't', 'i', + 'o', 'n', + 's', ' ', + 't', 'e', + 's', 't', + 0x14, 0x2f, /* End of Caption */ +}; + +static u8 calc_parity(u8 val) +{ + unsigned i; + unsigned tot = 0; + + for (i = 0; i < 7; i++) + tot += (val & (1 << i)) ? 1 : 0; + return val | ((tot & 1) ? 0 : 0x80); +} + +static void vivid_vbi_gen_set_time_of_day(u8 *packet) +{ + struct tm tm; + u8 checksum, i; + + time64_to_tm(ktime_get_real_seconds(), 0, &tm); + packet[0] = calc_parity(0x07); + packet[1] = calc_parity(0x01); + packet[2] = calc_parity(0x40 | tm.tm_min); + packet[3] = calc_parity(0x40 | tm.tm_hour); + packet[4] = calc_parity(0x40 | tm.tm_mday); + if (tm.tm_mday == 1 && tm.tm_mon == 2 && + sys_tz.tz_minuteswest > tm.tm_min + tm.tm_hour * 60) + packet[4] = calc_parity(0x60 | tm.tm_mday); + packet[5] = calc_parity(0x40 | (1 + tm.tm_mon)); + packet[6] = calc_parity(0x40 | (1 + tm.tm_wday)); + packet[7] = calc_parity(0x40 | ((tm.tm_year - 90) & 0x3f)); + packet[8] = calc_parity(0x0f); + for (checksum = i = 0; i <= 8; i++) + checksum += packet[i] & 0x7f; + packet[9] = calc_parity(0x100 - checksum); + checksum = 0; + packet[10] = calc_parity(0x07); + packet[11] = calc_parity(0x04); + if (sys_tz.tz_minuteswest >= 0) + packet[12] = calc_parity(0x40 | ((sys_tz.tz_minuteswest / 60) & 0x1f)); + else + packet[12] = calc_parity(0x40 | ((24 + sys_tz.tz_minuteswest / 60) & 0x1f)); + packet[13] = calc_parity(0); + packet[14] = calc_parity(0x0f); + for (checksum = 0, i = 10; i <= 14; i++) + checksum += packet[i] & 0x7f; + packet[15] = calc_parity(0x100 - checksum); +} + +static const u8 hamming[16] = { + 0x15, 0x02, 0x49, 0x5e, 0x64, 0x73, 0x38, 0x2f, + 0xd0, 0xc7, 0x8c, 0x9b, 0xa1, 0xb6, 0xfd, 0xea +}; + +static void vivid_vbi_gen_teletext(u8 *packet, unsigned line, unsigned frame) +{ + unsigned offset = 2; + unsigned i; + + packet[0] = hamming[1 + ((line & 1) << 3)]; + packet[1] = hamming[line >> 1]; + memset(packet + 2, 0x20, 40); + if (line == 0) { + /* subcode */ + packet[2] = hamming[frame % 10]; + packet[3] = hamming[frame / 10]; + packet[4] = hamming[0]; + packet[5] = hamming[0]; + packet[6] = hamming[0]; + packet[7] = hamming[0]; + packet[8] = hamming[0]; + packet[9] = hamming[1]; + offset = 10; + } + packet += offset; + memcpy(packet, "Page: 100 Row: 10", 17); + packet[7] = '0' + frame / 10; + packet[8] = '0' + frame % 10; + packet[15] = '0' + line / 10; + packet[16] = '0' + line % 10; + for (i = 0; i < 42 - offset; i++) + packet[i] = calc_parity(packet[i]); +} + +void vivid_vbi_gen_sliced(struct vivid_vbi_gen_data *vbi, + bool is_60hz, unsigned seqnr) +{ + struct v4l2_sliced_vbi_data *data0 = vbi->data; + struct v4l2_sliced_vbi_data *data1 = vbi->data + 1; + unsigned frame = seqnr % 60; + + memset(vbi->data, 0, sizeof(vbi->data)); + + if (!is_60hz) { + unsigned i; + + for (i = 0; i <= 11; i++) { + data0->id = V4L2_SLICED_TELETEXT_B; + data0->line = 7 + i; + vivid_vbi_gen_teletext(data0->data, i, frame); + data0++; + } + data0->id = V4L2_SLICED_WSS_625; + data0->line = 23; + /* 4x3 video aspect ratio */ + data0->data[0] = 0x08; + data0++; + for (i = 0; i <= 11; i++) { + data0->id = V4L2_SLICED_TELETEXT_B; + data0->field = 1; + data0->line = 7 + i; + vivid_vbi_gen_teletext(data0->data, 12 + i, frame); + data0++; + } + return; + } + + data0->id = V4L2_SLICED_CAPTION_525; + data0->line = 21; + data1->id = V4L2_SLICED_CAPTION_525; + data1->field = 1; + data1->line = 21; + + if (frame < 15) { + data0->data[0] = calc_parity(vivid_cc_sequence1[2 * frame]); + data0->data[1] = calc_parity(vivid_cc_sequence1[2 * frame + 1]); + } else if (frame >= 30 && frame < 45) { + frame -= 30; + data0->data[0] = calc_parity(vivid_cc_sequence2[2 * frame]); + data0->data[1] = calc_parity(vivid_cc_sequence2[2 * frame + 1]); + } else { + data0->data[0] = calc_parity(0); + data0->data[1] = calc_parity(0); + } + + frame = seqnr % (30 * 60); + switch (frame) { + case 0: + vivid_vbi_gen_set_time_of_day(vbi->time_of_day_packet); + fallthrough; + case 1 ... 7: + data1->data[0] = vbi->time_of_day_packet[frame * 2]; + data1->data[1] = vbi->time_of_day_packet[frame * 2 + 1]; + break; + default: + data1->data[0] = calc_parity(0); + data1->data[1] = calc_parity(0); + break; + } +} diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-gen.h b/drivers/media/test-drivers/vivid/vivid-vbi-gen.h new file mode 100644 index 000000000..2657a7f55 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-gen.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vbi-gen.h - vbi generator support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VBI_GEN_H_ +#define _VIVID_VBI_GEN_H_ + +struct vivid_vbi_gen_data { + struct v4l2_sliced_vbi_data data[25]; + u8 time_of_day_packet[16]; +}; + +void vivid_vbi_gen_sliced(struct vivid_vbi_gen_data *vbi, + bool is_60hz, unsigned seqnr); +void vivid_vbi_gen_raw(const struct vivid_vbi_gen_data *vbi, + const struct v4l2_vbi_format *vbi_fmt, u8 *buf); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c new file mode 100644 index 000000000..cd5647690 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c @@ -0,0 +1,250 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vbi-out.c - vbi output support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> + +#include "vivid-core.h" +#include "vivid-kthread-out.h" +#include "vivid-vbi-out.h" +#include "vivid-vbi-cap.h" + +static int vbi_out_queue_setup(struct vb2_queue *vq, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + bool is_60hz = dev->std_out & V4L2_STD_525_60; + unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ? + 36 * sizeof(struct v4l2_sliced_vbi_data) : + 1440 * 2 * (is_60hz ? 12 : 18); + + if (!vivid_is_svid_out(dev)) + return -EINVAL; + + sizes[0] = size; + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int vbi_out_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + bool is_60hz = dev->std_out & V4L2_STD_525_60; + unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ? + 36 * sizeof(struct v4l2_sliced_vbi_data) : + 1440 * 2 * (is_60hz ? 12 : 18); + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void vbi_out_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->vbi_out_active); + spin_unlock(&dev->slock); +} + +static int vbi_out_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dprintk(dev, 1, "%s\n", __func__); + dev->vbi_out_seq_count = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_out(dev, &dev->vbi_out_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->vbi_out_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void vbi_out_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_out(dev, &dev->vbi_out_streaming); + dev->vbi_out_have_wss = false; + dev->vbi_out_have_cc[0] = false; + dev->vbi_out_have_cc[1] = false; +} + +static void vbi_out_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vbi_out); +} + +const struct vb2_ops vivid_vbi_out_qops = { + .queue_setup = vbi_out_queue_setup, + .buf_prepare = vbi_out_buf_prepare, + .buf_queue = vbi_out_buf_queue, + .start_streaming = vbi_out_start_streaming, + .stop_streaming = vbi_out_stop_streaming, + .buf_request_complete = vbi_out_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vidioc_g_fmt_vbi_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_vbi_format *vbi = &f->fmt.vbi; + bool is_60hz = dev->std_out & V4L2_STD_525_60; + + if (!vivid_is_svid_out(dev) || !dev->has_raw_vbi_out) + return -EINVAL; + + vbi->sampling_rate = 25000000; + vbi->offset = 24; + vbi->samples_per_line = 1440; + vbi->sample_format = V4L2_PIX_FMT_GREY; + vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5; + vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5; + vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18; + vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0; + vbi->reserved[0] = 0; + vbi->reserved[1] = 0; + return 0; +} + +int vidioc_s_fmt_vbi_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + int ret = vidioc_g_fmt_vbi_out(file, priv, f); + + if (ret) + return ret; + if (vb2_is_busy(&dev->vb_vbi_out_q)) + return -EBUSY; + dev->stream_sliced_vbi_out = false; + dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_VBI_OUTPUT; + return 0; +} + +int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + + if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out) + return -EINVAL; + + vivid_fill_service_lines(vbi, dev->service_set_out); + return 0; +} + +int vidioc_try_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + bool is_60hz = dev->std_out & V4L2_STD_525_60; + u32 service_set = vbi->service_set; + + if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out) + return -EINVAL; + + service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 : + V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + vivid_fill_service_lines(vbi, service_set); + return 0; +} + +int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced; + int ret = vidioc_try_fmt_sliced_vbi_out(file, fh, fmt); + + if (ret) + return ret; + if (vb2_is_busy(&dev->vb_vbi_out_q)) + return -EBUSY; + dev->service_set_out = vbi->service_set; + dev->stream_sliced_vbi_out = true; + dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT; + return 0; +} + +void vivid_sliced_vbi_out_process(struct vivid_dev *dev, + struct vivid_buffer *buf) +{ + struct v4l2_sliced_vbi_data *vbi = + vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + unsigned elems = + vb2_get_plane_payload(&buf->vb.vb2_buf, 0) / sizeof(*vbi); + + dev->vbi_out_have_cc[0] = false; + dev->vbi_out_have_cc[1] = false; + dev->vbi_out_have_wss = false; + while (elems--) { + switch (vbi->id) { + case V4L2_SLICED_CAPTION_525: + if ((dev->std_out & V4L2_STD_525_60) && vbi->line == 21) { + dev->vbi_out_have_cc[!!vbi->field] = true; + dev->vbi_out_cc[!!vbi->field][0] = vbi->data[0]; + dev->vbi_out_cc[!!vbi->field][1] = vbi->data[1]; + } + break; + case V4L2_SLICED_WSS_625: + if ((dev->std_out & V4L2_STD_625_50) && + vbi->field == 0 && vbi->line == 23) { + dev->vbi_out_have_wss = true; + dev->vbi_out_wss[0] = vbi->data[0]; + dev->vbi_out_wss[1] = vbi->data[1]; + } + break; + } + vbi++; + } +} diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.h b/drivers/media/test-drivers/vivid/vivid-vbi-out.h new file mode 100644 index 000000000..76584940c --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vbi-out.h - vbi output support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VBI_OUT_H_ +#define _VIVID_VBI_OUT_H_ + +void vivid_sliced_vbi_out_process(struct vivid_dev *dev, struct vivid_buffer *buf); +int vidioc_g_fmt_vbi_out(struct file *file, void *priv, + struct v4l2_format *f); +int vidioc_s_fmt_vbi_out(struct file *file, void *priv, + struct v4l2_format *f); +int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt); +int vidioc_try_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt); +int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt); + +extern const struct vb2_ops vivid_vbi_out_qops; + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c new file mode 100644 index 000000000..c0999581c --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c @@ -0,0 +1,1968 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vid-cap.c - video capture support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/vmalloc.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-rect.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-kthread-cap.h" +#include "vivid-vid-cap.h" + +static const struct vivid_fmt formats_ovl[] = { + { + .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, +}; + +/* The number of discrete webcam framesizes */ +#define VIVID_WEBCAM_SIZES 6 +/* The number of discrete webcam frameintervals */ +#define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2) + +/* Sizes must be in increasing order */ +static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = { + { 320, 180 }, + { 640, 360 }, + { 640, 480 }, + { 1280, 720 }, + { 1920, 1080 }, + { 3840, 2160 }, +}; + +/* + * Intervals must be in increasing order and there must be twice as many + * elements in this array as there are in webcam_sizes. + */ +static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = { + { 1, 1 }, + { 1, 2 }, + { 1, 4 }, + { 1, 5 }, + { 1, 10 }, + { 2, 25 }, + { 1, 15 }, + { 1, 25 }, + { 1, 30 }, + { 1, 40 }, + { 1, 50 }, + { 1, 60 }, +}; + +static int vid_cap_queue_setup(struct vb2_queue *vq, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + unsigned buffers = tpg_g_buffers(&dev->tpg); + unsigned h = dev->fmt_cap_rect.height; + unsigned p; + + if (dev->field_cap == V4L2_FIELD_ALTERNATE) { + /* + * You cannot use read() with FIELD_ALTERNATE since the field + * information (TOP/BOTTOM) cannot be passed back to the user. + */ + if (vb2_fileio_is_active(vq)) + return -EINVAL; + } + + if (dev->queue_setup_error) { + /* + * Error injection: test what happens if queue_setup() returns + * an error. + */ + dev->queue_setup_error = false; + return -EINVAL; + } + if (*nplanes) { + /* + * Check if the number of requested planes match + * the number of buffers in the current format. You can't mix that. + */ + if (*nplanes != buffers) + return -EINVAL; + for (p = 0; p < buffers; p++) { + if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h + + dev->fmt_cap->data_offset[p]) + return -EINVAL; + } + } else { + for (p = 0; p < buffers; p++) + sizes[p] = (tpg_g_line_width(&dev->tpg, p) * h) / + dev->fmt_cap->vdownsampling[p] + + dev->fmt_cap->data_offset[p]; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = buffers; + + dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers); + for (p = 0; p < buffers; p++) + dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]); + + return 0; +} + +static int vid_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size; + unsigned buffers = tpg_g_buffers(&dev->tpg); + unsigned p; + + dprintk(dev, 1, "%s\n", __func__); + + if (WARN_ON(NULL == dev->fmt_cap)) + return -EINVAL; + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + for (p = 0; p < buffers; p++) { + size = (tpg_g_line_width(&dev->tpg, p) * + dev->fmt_cap_rect.height) / + dev->fmt_cap->vdownsampling[p] + + dev->fmt_cap->data_offset[p]; + + if (vb2_plane_size(vb, p) < size) { + dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n", + __func__, p, vb2_plane_size(vb, p), size); + return -EINVAL; + } + + vb2_set_plane_payload(vb, p, size); + vb->planes[p].data_offset = dev->fmt_cap->data_offset[p]; + } + + return 0; +} + +static void vid_cap_buf_finish(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct v4l2_timecode *tc = &vbuf->timecode; + unsigned fps = 25; + unsigned seq = vbuf->sequence; + + if (!vivid_is_sdtv_cap(dev)) + return; + + /* + * Set the timecode. Rarely used, so it is interesting to + * test this. + */ + vbuf->flags |= V4L2_BUF_FLAG_TIMECODE; + if (dev->std_cap[dev->input] & V4L2_STD_525_60) + fps = 30; + tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS; + tc->flags = 0; + tc->frames = seq % fps; + tc->seconds = (seq / fps) % 60; + tc->minutes = (seq / (60 * fps)) % 60; + tc->hours = (seq / (60 * 60 * fps)) % 24; +} + +static void vid_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->vid_cap_active); + spin_unlock(&dev->slock); +} + +static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + unsigned i; + int err; + + if (vb2_is_streaming(&dev->vb_vid_out_q)) + dev->can_loop_video = vivid_vid_can_loop(dev); + + dev->vid_cap_seq_count = 0; + dprintk(dev, 1, "%s\n", __func__); + for (i = 0; i < VIDEO_MAX_FRAME; i++) + dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void vid_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming); + dev->can_loop_video = false; +} + +static void vid_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap); +} + +const struct vb2_ops vivid_vid_cap_qops = { + .queue_setup = vid_cap_queue_setup, + .buf_prepare = vid_cap_buf_prepare, + .buf_finish = vid_cap_buf_finish, + .buf_queue = vid_cap_buf_queue, + .start_streaming = vid_cap_start_streaming, + .stop_streaming = vid_cap_stop_streaming, + .buf_request_complete = vid_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +/* + * Determine the 'picture' quality based on the current TV frequency: either + * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off + * signal or NOISE for no signal. + */ +void vivid_update_quality(struct vivid_dev *dev) +{ + unsigned freq_modulus; + + if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) { + /* + * The 'noise' will only be replaced by the actual video + * if the output video matches the input video settings. + */ + tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); + return; + } + if (vivid_is_hdmi_cap(dev) && + VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])) { + tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); + return; + } + if (vivid_is_sdtv_cap(dev) && + VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) { + tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); + return; + } + if (!vivid_is_tv_cap(dev)) { + tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0); + return; + } + + /* + * There is a fake channel every 6 MHz at 49.25, 55.25, etc. + * From +/- 0.25 MHz around the channel there is color, and from + * +/- 1 MHz there is grayscale (chroma is lost). + * Everywhere else it is just noise. + */ + freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16); + if (freq_modulus > 2 * 16) { + tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, + next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f); + return; + } + if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/) + tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0); + else + tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0); +} + +/* + * Get the current picture quality and the associated afc value. + */ +static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc) +{ + unsigned freq_modulus; + + if (afc) + *afc = 0; + if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR || + tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) + return tpg_g_quality(&dev->tpg); + + /* + * There is a fake channel every 6 MHz at 49.25, 55.25, etc. + * From +/- 0.25 MHz around the channel there is color, and from + * +/- 1 MHz there is grayscale (chroma is lost). + * Everywhere else it is just gray. + */ + freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16); + if (afc) + *afc = freq_modulus - 1 * 16; + return TPG_QUAL_GRAY; +} + +enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev) +{ + if (vivid_is_sdtv_cap(dev)) + return dev->std_aspect_ratio[dev->input]; + + if (vivid_is_hdmi_cap(dev)) + return dev->dv_timings_aspect_ratio[dev->input]; + + return TPG_VIDEO_ASPECT_IMAGE; +} + +static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev) +{ + if (vivid_is_sdtv_cap(dev)) + return (dev->std_cap[dev->input] & V4L2_STD_525_60) ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + if (vivid_is_hdmi_cap(dev) && + dev->src_rect.width == 720 && dev->src_rect.height <= 576) + return dev->src_rect.height == 480 ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + return TPG_PIXEL_ASPECT_SQUARE; +} + +/* + * Called whenever the format has to be reset which can occur when + * changing inputs, standard, timings, etc. + */ +void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls) +{ + struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt; + u32 dims[V4L2_CTRL_MAX_DIMS] = {}; + unsigned size; + u64 pixelclock; + + switch (dev->input_type[dev->input]) { + case WEBCAM: + default: + dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width; + dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height; + dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx]; + dev->field_cap = V4L2_FIELD_NONE; + tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO); + break; + case TV: + case SVID: + dev->field_cap = dev->tv_field_cap; + dev->src_rect.width = 720; + if (dev->std_cap[dev->input] & V4L2_STD_525_60) { + dev->src_rect.height = 480; + dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 }; + dev->service_set_cap = V4L2_SLICED_CAPTION_525; + } else { + dev->src_rect.height = 576; + dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 }; + dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + } + tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO); + break; + case HDMI: + dev->src_rect.width = bt->width; + dev->src_rect.height = bt->height; + size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt); + if (dev->reduced_fps && can_reduce_fps(bt)) { + pixelclock = div_u64(bt->pixelclock * 1000, 1001); + bt->flags |= V4L2_DV_FL_REDUCED_FPS; + } else { + pixelclock = bt->pixelclock; + bt->flags &= ~V4L2_DV_FL_REDUCED_FPS; + } + dev->timeperframe_vid_cap = (struct v4l2_fract) { + size / 100, (u32)pixelclock / 100 + }; + if (bt->interlaced) + dev->field_cap = V4L2_FIELD_ALTERNATE; + else + dev->field_cap = V4L2_FIELD_NONE; + + /* + * We can be called from within s_ctrl, in that case we can't + * set/get controls. Luckily we don't need to in that case. + */ + if (keep_controls || !dev->colorspace) + break; + if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) { + if (bt->width == 720 && bt->height <= 576) + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); + else + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709); + v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1); + } else { + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); + v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0); + } + tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap)); + break; + } + vfree(dev->bitmap_cap); + dev->bitmap_cap = NULL; + vivid_update_quality(dev); + tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap); + dev->crop_cap = dev->src_rect; + dev->crop_bounds_cap = dev->src_rect; + if (dev->bitmap_cap && + (dev->compose_cap.width != dev->crop_cap.width || + dev->compose_cap.height != dev->crop_cap.height)) { + vfree(dev->bitmap_cap); + dev->bitmap_cap = NULL; + } + dev->compose_cap = dev->crop_cap; + if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap)) + dev->compose_cap.height /= 2; + dev->fmt_cap_rect = dev->compose_cap; + tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev)); + tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev)); + tpg_update_mv_step(&dev->tpg); + + /* + * We can be called from within s_ctrl, in that case we can't + * modify controls. Luckily we don't need to in that case. + */ + if (keep_controls) + return; + + dims[0] = roundup(dev->src_rect.width, PIXEL_ARRAY_DIV); + dims[1] = roundup(dev->src_rect.height, PIXEL_ARRAY_DIV); + v4l2_ctrl_modify_dimensions(dev->pixel_array, dims); +} + +/* Map the field to something that is valid for the current input */ +static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field) +{ + if (vivid_is_sdtv_cap(dev)) { + switch (field) { + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + case V4L2_FIELD_SEQ_TB: + case V4L2_FIELD_SEQ_BT: + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_ALTERNATE: + return field; + case V4L2_FIELD_INTERLACED: + default: + return V4L2_FIELD_INTERLACED; + } + } + if (vivid_is_hdmi_cap(dev)) + return dev->dv_timings_cap[dev->input].bt.interlaced ? + V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE; + return V4L2_FIELD_NONE; +} + +static unsigned vivid_colorspace_cap(struct vivid_dev *dev) +{ + if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) + return tpg_g_colorspace(&dev->tpg); + return dev->colorspace_out; +} + +static unsigned vivid_xfer_func_cap(struct vivid_dev *dev) +{ + if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) + return tpg_g_xfer_func(&dev->tpg); + return dev->xfer_func_out; +} + +static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev) +{ + if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) + return tpg_g_ycbcr_enc(&dev->tpg); + return dev->ycbcr_enc_out; +} + +static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev) +{ + if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) + return tpg_g_hsv_enc(&dev->tpg); + return dev->hsv_enc_out; +} + +static unsigned vivid_quantization_cap(struct vivid_dev *dev) +{ + if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) + return tpg_g_quantization(&dev->tpg); + return dev->quantization_out; +} + +int vivid_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + unsigned p; + + mp->width = dev->fmt_cap_rect.width; + mp->height = dev->fmt_cap_rect.height; + mp->field = dev->field_cap; + mp->pixelformat = dev->fmt_cap->fourcc; + mp->colorspace = vivid_colorspace_cap(dev); + mp->xfer_func = vivid_xfer_func_cap(dev); + if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV) + mp->hsv_enc = vivid_hsv_enc_cap(dev); + else + mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); + mp->quantization = vivid_quantization_cap(dev); + mp->num_planes = dev->fmt_cap->buffers; + for (p = 0; p < mp->num_planes; p++) { + mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p); + mp->plane_fmt[p].sizeimage = + (tpg_g_line_width(&dev->tpg, p) * mp->height) / + dev->fmt_cap->vdownsampling[p] + + dev->fmt_cap->data_offset[p]; + } + return 0; +} + +int vivid_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *pfmt = mp->plane_fmt; + struct vivid_dev *dev = video_drvdata(file); + const struct vivid_fmt *fmt; + unsigned bytesperline, max_bpl; + unsigned factor = 1; + unsigned w, h; + unsigned p; + bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC); + + fmt = vivid_get_format(dev, mp->pixelformat); + if (!fmt) { + dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n", + mp->pixelformat); + mp->pixelformat = V4L2_PIX_FMT_YUYV; + fmt = vivid_get_format(dev, mp->pixelformat); + } + + mp->field = vivid_field_cap(dev, mp->field); + if (vivid_is_webcam(dev)) { + const struct v4l2_frmsize_discrete *sz = + v4l2_find_nearest_size(webcam_sizes, + VIVID_WEBCAM_SIZES, width, + height, mp->width, mp->height); + + w = sz->width; + h = sz->height; + } else if (vivid_is_sdtv_cap(dev)) { + w = 720; + h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576; + } else { + w = dev->src_rect.width; + h = dev->src_rect.height; + } + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + if (vivid_is_webcam(dev) || + (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) { + mp->width = w; + mp->height = h / factor; + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor }; + + v4l2_rect_set_min_size(&r, &vivid_min_rect); + v4l2_rect_set_max_size(&r, &vivid_max_rect); + if (dev->has_scaler_cap && !dev->has_compose_cap) { + struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h }; + + v4l2_rect_set_max_size(&r, &max_r); + } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) { + v4l2_rect_set_max_size(&r, &dev->src_rect); + } else if (!dev->has_scaler_cap && !dev->has_crop_cap) { + v4l2_rect_set_min_size(&r, &dev->src_rect); + } + mp->width = r.width; + mp->height = r.height / factor; + } + + /* This driver supports custom bytesperline values */ + + mp->num_planes = fmt->buffers; + for (p = 0; p < fmt->buffers; p++) { + /* Calculate the minimum supported bytesperline value */ + bytesperline = (mp->width * fmt->bit_depth[p]) >> 3; + /* Calculate the maximum supported bytesperline value */ + max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3; + + if (pfmt[p].bytesperline > max_bpl) + pfmt[p].bytesperline = max_bpl; + if (pfmt[p].bytesperline < bytesperline) + pfmt[p].bytesperline = bytesperline; + + pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) / + fmt->vdownsampling[p] + fmt->data_offset[p]; + + memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved)); + } + for (p = fmt->buffers; p < fmt->planes; p++) + pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height * + (fmt->bit_depth[p] / fmt->vdownsampling[p])) / + (fmt->bit_depth[0] / fmt->vdownsampling[0]); + + if (!user_set_csc || !v4l2_is_colorspace_valid(mp->colorspace)) + mp->colorspace = vivid_colorspace_cap(dev); + + if (!user_set_csc || !v4l2_is_xfer_func_valid(mp->xfer_func)) + mp->xfer_func = vivid_xfer_func_cap(dev); + + if (fmt->color_enc == TGP_COLOR_ENC_HSV) { + if (!user_set_csc || !v4l2_is_hsv_enc_valid(mp->hsv_enc)) + mp->hsv_enc = vivid_hsv_enc_cap(dev); + } else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) { + if (!user_set_csc || !v4l2_is_ycbcr_enc_valid(mp->ycbcr_enc)) + mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); + } else { + mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); + } + + if (fmt->color_enc == TGP_COLOR_ENC_YCBCR || + fmt->color_enc == TGP_COLOR_ENC_RGB) { + if (!user_set_csc || !v4l2_is_quant_valid(mp->quantization)) + mp->quantization = vivid_quantization_cap(dev); + } else { + mp->quantization = vivid_quantization_cap(dev); + } + + memset(mp->reserved, 0, sizeof(mp->reserved)); + return 0; +} + +int vivid_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rect *crop = &dev->crop_cap; + struct v4l2_rect *compose = &dev->compose_cap; + struct vb2_queue *q = &dev->vb_vid_cap_q; + int ret = vivid_try_fmt_vid_cap(file, priv, f); + unsigned factor = 1; + unsigned p; + unsigned i; + + if (ret < 0) + return ret; + + if (vb2_is_busy(q)) { + dprintk(dev, 1, "%s device busy\n", __func__); + return -EBUSY; + } + + if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) { + dprintk(dev, 1, "overlay is active, can't change pixelformat\n"); + return -EBUSY; + } + + dev->fmt_cap = vivid_get_format(dev, mp->pixelformat); + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + + /* Note: the webcam input doesn't support scaling, cropping or composing */ + + if (!vivid_is_webcam(dev) && + (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + if (dev->has_scaler_cap) { + if (dev->has_compose_cap) + v4l2_rect_map_inside(compose, &r); + else + *compose = r; + if (dev->has_crop_cap && !dev->has_compose_cap) { + struct v4l2_rect min_r = { + 0, 0, + r.width / MAX_ZOOM, + factor * r.height / MAX_ZOOM + }; + struct v4l2_rect max_r = { + 0, 0, + r.width * MAX_ZOOM, + factor * r.height * MAX_ZOOM + }; + + v4l2_rect_set_min_size(crop, &min_r); + v4l2_rect_set_max_size(crop, &max_r); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + } else if (dev->has_crop_cap) { + struct v4l2_rect min_r = { + 0, 0, + compose->width / MAX_ZOOM, + factor * compose->height / MAX_ZOOM + }; + struct v4l2_rect max_r = { + 0, 0, + compose->width * MAX_ZOOM, + factor * compose->height * MAX_ZOOM + }; + + v4l2_rect_set_min_size(crop, &min_r); + v4l2_rect_set_max_size(crop, &max_r); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + } + } else if (dev->has_crop_cap && !dev->has_compose_cap) { + r.height *= factor; + v4l2_rect_set_size_to(crop, &r); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + r = *crop; + r.height /= factor; + v4l2_rect_set_size_to(compose, &r); + } else if (!dev->has_crop_cap) { + v4l2_rect_map_inside(compose, &r); + } else { + r.height *= factor; + v4l2_rect_set_max_size(crop, &r); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + compose->top *= factor; + compose->height *= factor; + v4l2_rect_set_size_to(compose, crop); + v4l2_rect_map_inside(compose, &r); + compose->top /= factor; + compose->height /= factor; + } + } else if (vivid_is_webcam(dev)) { + /* Guaranteed to be a match */ + for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++) + if (webcam_sizes[i].width == mp->width && + webcam_sizes[i].height == mp->height) + break; + dev->webcam_size_idx = i; + if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i)) + dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1; + vivid_update_format_cap(dev, false); + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + v4l2_rect_set_size_to(compose, &r); + r.height *= factor; + v4l2_rect_set_size_to(crop, &r); + } + + dev->fmt_cap_rect.width = mp->width; + dev->fmt_cap_rect.height = mp->height; + tpg_s_buf_height(&dev->tpg, mp->height); + tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc); + for (p = 0; p < tpg_g_buffers(&dev->tpg); p++) + tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline); + dev->field_cap = mp->field; + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true); + else + tpg_s_field(&dev->tpg, dev->field_cap, false); + tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap); + if (vivid_is_sdtv_cap(dev)) + dev->tv_field_cap = mp->field; + tpg_update_mv_step(&dev->tpg); + dev->tpg.colorspace = mp->colorspace; + dev->tpg.xfer_func = mp->xfer_func; + if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR) + dev->tpg.ycbcr_enc = mp->ycbcr_enc; + else + dev->tpg.hsv_enc = mp->hsv_enc; + dev->tpg.quantization = mp->quantization; + + return 0; +} + +int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_g_fmt_vid_cap(file, priv, f); +} + +int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_try_fmt_vid_cap(file, priv, f); +} + +int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_s_fmt_vid_cap(file, priv, f); +} + +int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); +} + +int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); +} + +int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); +} + +int vivid_vid_cap_g_selection(struct file *file, void *priv, + struct v4l2_selection *sel) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->has_crop_cap && !dev->has_compose_cap) + return -ENOTTY; + if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (vivid_is_webcam(dev)) + return -ENODATA; + + sel->r.left = sel->r.top = 0; + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_cap) + return -EINVAL; + sel->r = dev->crop_cap; + break; + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP_BOUNDS: + if (!dev->has_crop_cap) + return -EINVAL; + sel->r = dev->src_rect; + break; + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + if (!dev->has_compose_cap) + return -EINVAL; + sel->r = vivid_max_rect; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_cap) + return -EINVAL; + sel->r = dev->compose_cap; + break; + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + if (!dev->has_compose_cap) + return -EINVAL; + sel->r = dev->fmt_cap_rect; + break; + default: + return -EINVAL; + } + return 0; +} + +int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rect *crop = &dev->crop_cap; + struct v4l2_rect *compose = &dev->compose_cap; + unsigned orig_compose_w = compose->width; + unsigned orig_compose_h = compose->height; + unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1; + int ret; + + if (!dev->has_crop_cap && !dev->has_compose_cap) + return -ENOTTY; + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (vivid_is_webcam(dev)) + return -ENODATA; + + switch (s->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_cap) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + v4l2_rect_set_min_size(&s->r, &vivid_min_rect); + v4l2_rect_set_max_size(&s->r, &dev->src_rect); + v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap); + s->r.top /= factor; + s->r.height /= factor; + if (dev->has_scaler_cap) { + struct v4l2_rect fmt = dev->fmt_cap_rect; + struct v4l2_rect max_rect = { + 0, 0, + s->r.width * MAX_ZOOM, + s->r.height * MAX_ZOOM + }; + struct v4l2_rect min_rect = { + 0, 0, + s->r.width / MAX_ZOOM, + s->r.height / MAX_ZOOM + }; + + v4l2_rect_set_min_size(&fmt, &min_rect); + if (!dev->has_compose_cap) + v4l2_rect_set_max_size(&fmt, &max_rect); + if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + if (dev->has_compose_cap) { + v4l2_rect_set_min_size(compose, &min_rect); + v4l2_rect_set_max_size(compose, &max_rect); + v4l2_rect_map_inside(compose, &fmt); + } + dev->fmt_cap_rect = fmt; + tpg_s_buf_height(&dev->tpg, fmt.height); + } else if (dev->has_compose_cap) { + struct v4l2_rect fmt = dev->fmt_cap_rect; + + v4l2_rect_set_min_size(&fmt, &s->r); + if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + dev->fmt_cap_rect = fmt; + tpg_s_buf_height(&dev->tpg, fmt.height); + v4l2_rect_set_size_to(compose, &s->r); + v4l2_rect_map_inside(compose, &dev->fmt_cap_rect); + } else { + if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) && + vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r); + v4l2_rect_set_size_to(compose, &s->r); + v4l2_rect_map_inside(compose, &dev->fmt_cap_rect); + tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height); + } + s->r.top *= factor; + s->r.height *= factor; + *crop = s->r; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_cap) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + v4l2_rect_set_min_size(&s->r, &vivid_min_rect); + v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect); + if (dev->has_scaler_cap) { + struct v4l2_rect max_rect = { + 0, 0, + dev->src_rect.width * MAX_ZOOM, + (dev->src_rect.height / factor) * MAX_ZOOM + }; + + v4l2_rect_set_max_size(&s->r, &max_rect); + if (dev->has_crop_cap) { + struct v4l2_rect min_rect = { + 0, 0, + s->r.width / MAX_ZOOM, + (s->r.height * factor) / MAX_ZOOM + }; + struct v4l2_rect max_rect = { + 0, 0, + s->r.width * MAX_ZOOM, + (s->r.height * factor) * MAX_ZOOM + }; + + v4l2_rect_set_min_size(crop, &min_rect); + v4l2_rect_set_max_size(crop, &max_rect); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + } + } else if (dev->has_crop_cap) { + s->r.top *= factor; + s->r.height *= factor; + v4l2_rect_set_max_size(&s->r, &dev->src_rect); + v4l2_rect_set_size_to(crop, &s->r); + v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); + s->r.top /= factor; + s->r.height /= factor; + } else { + v4l2_rect_set_size_to(&s->r, &dev->src_rect); + s->r.height /= factor; + } + v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect); + *compose = s->r; + break; + default: + return -EINVAL; + } + + if (dev->bitmap_cap && (compose->width != orig_compose_w || + compose->height != orig_compose_h)) { + vfree(dev->bitmap_cap); + dev->bitmap_cap = NULL; + } + tpg_s_crop_compose(&dev->tpg, crop, compose); + return 0; +} + +int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv, + int type, struct v4l2_fract *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + switch (vivid_get_pixel_aspect(dev)) { + case TPG_PIXEL_ASPECT_NTSC: + f->numerator = 11; + f->denominator = 10; + break; + case TPG_PIXEL_ASPECT_PAL: + f->numerator = 54; + f->denominator = 59; + break; + default: + break; + } + return 0; +} + +int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct vivid_fmt *fmt; + + if (dev->multiplanar) + return -ENOTTY; + + if (f->index >= ARRAY_SIZE(formats_ovl)) + return -EINVAL; + + fmt = &formats_ovl[f->index]; + + f->pixelformat = fmt->fourcc; + return 0; +} + +int vidioc_g_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_cap; + struct v4l2_window *win = &f->fmt.win; + unsigned clipcount = win->clipcount; + + if (dev->multiplanar) + return -ENOTTY; + + win->w.top = dev->overlay_cap_top; + win->w.left = dev->overlay_cap_left; + win->w.width = compose->width; + win->w.height = compose->height; + win->field = dev->overlay_cap_field; + win->clipcount = dev->clipcount_cap; + if (clipcount > dev->clipcount_cap) + clipcount = dev->clipcount_cap; + if (dev->bitmap_cap == NULL) + win->bitmap = NULL; + else if (win->bitmap) { + if (copy_to_user(win->bitmap, dev->bitmap_cap, + ((compose->width + 7) / 8) * compose->height)) + return -EFAULT; + } + if (clipcount && win->clips) + memcpy(win->clips, dev->clips_cap, + clipcount * sizeof(dev->clips_cap[0])); + return 0; +} + +int vidioc_try_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_cap; + struct v4l2_window *win = &f->fmt.win; + int i, j; + + if (dev->multiplanar) + return -ENOTTY; + + win->w.left = clamp_t(int, win->w.left, + -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width); + win->w.top = clamp_t(int, win->w.top, + -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height); + win->w.width = compose->width; + win->w.height = compose->height; + if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP) + win->field = V4L2_FIELD_ANY; + win->chromakey = 0; + win->global_alpha = 0; + if (win->clipcount && !win->clips) + win->clipcount = 0; + if (win->clipcount > MAX_CLIPS) + win->clipcount = MAX_CLIPS; + if (win->clipcount) { + memcpy(dev->try_clips_cap, win->clips, + win->clipcount * sizeof(dev->clips_cap[0])); + for (i = 0; i < win->clipcount; i++) { + struct v4l2_rect *r = &dev->try_clips_cap[i].c; + + r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1); + r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top); + r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1); + r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left); + } + /* + * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small + * number and it's typically a one-time deal. + */ + for (i = 0; i < win->clipcount - 1; i++) { + struct v4l2_rect *r1 = &dev->try_clips_cap[i].c; + + for (j = i + 1; j < win->clipcount; j++) { + struct v4l2_rect *r2 = &dev->try_clips_cap[j].c; + + if (v4l2_rect_overlap(r1, r2)) + return -EINVAL; + } + } + memcpy(win->clips, dev->try_clips_cap, + win->clipcount * sizeof(dev->clips_cap[0])); + } + return 0; +} + +int vidioc_s_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_cap; + struct v4l2_window *win = &f->fmt.win; + int ret = vidioc_try_fmt_vid_overlay(file, priv, f); + unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height; + unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]); + void *new_bitmap = NULL; + + if (ret) + return ret; + + if (win->bitmap) { + new_bitmap = vzalloc(bitmap_size); + + if (new_bitmap == NULL) + return -ENOMEM; + if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) { + vfree(new_bitmap); + return -EFAULT; + } + } + + dev->overlay_cap_top = win->w.top; + dev->overlay_cap_left = win->w.left; + dev->overlay_cap_field = win->field; + vfree(dev->bitmap_cap); + dev->bitmap_cap = new_bitmap; + dev->clipcount_cap = win->clipcount; + if (dev->clipcount_cap) + memcpy(dev->clips_cap, dev->try_clips_cap, clips_size); + return 0; +} + +int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + + if (i && dev->fb_vbase_cap == NULL) + return -EINVAL; + + if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) { + dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n"); + return -EINVAL; + } + + if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh) + return -EBUSY; + dev->overlay_cap_owner = i ? fh : NULL; + return 0; +} + +int vivid_vid_cap_g_fbuf(struct file *file, void *fh, + struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + + *a = dev->fb_cap; + a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING | + V4L2_FBUF_CAP_LIST_CLIPPING; + a->flags = V4L2_FBUF_FLAG_PRIMARY; + a->fmt.field = V4L2_FIELD_NONE; + a->fmt.colorspace = V4L2_COLORSPACE_SRGB; + a->fmt.priv = 0; + return 0; +} + +int vivid_vid_cap_s_fbuf(struct file *file, void *fh, + const struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct vivid_fmt *fmt; + + if (dev->multiplanar) + return -ENOTTY; + + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) + return -EPERM; + + if (dev->overlay_cap_owner) + return -EBUSY; + + if (a->base == NULL) { + dev->fb_cap.base = NULL; + dev->fb_vbase_cap = NULL; + return 0; + } + + if (a->fmt.width < 48 || a->fmt.height < 32) + return -EINVAL; + fmt = vivid_get_format(dev, a->fmt.pixelformat); + if (!fmt || !fmt->can_do_overlay) + return -EINVAL; + if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8) + return -EINVAL; + if (a->fmt.bytesperline > a->fmt.sizeimage / a->fmt.height) + return -EINVAL; + + /* + * Only support the framebuffer of one of the vivid instances. + * Anything else is rejected. + */ + if (!vivid_validate_fb(a)) + return -EINVAL; + + dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base); + dev->fb_cap = *a; + dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left, + -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width); + dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top, + -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height); + return 0; +} + +static const struct v4l2_audio vivid_audio_inputs[] = { + { 0, "TV", V4L2_AUDCAP_STEREO }, + { 1, "Line-In", V4L2_AUDCAP_STEREO }, +}; + +int vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *inp) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (inp->index >= dev->num_inputs) + return -EINVAL; + + inp->type = V4L2_INPUT_TYPE_CAMERA; + switch (dev->input_type[inp->index]) { + case WEBCAM: + snprintf(inp->name, sizeof(inp->name), "Webcam %u", + dev->input_name_counter[inp->index]); + inp->capabilities = 0; + break; + case TV: + snprintf(inp->name, sizeof(inp->name), "TV %u", + dev->input_name_counter[inp->index]); + inp->type = V4L2_INPUT_TYPE_TUNER; + inp->std = V4L2_STD_ALL; + if (dev->has_audio_inputs) + inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1; + inp->capabilities = V4L2_IN_CAP_STD; + break; + case SVID: + snprintf(inp->name, sizeof(inp->name), "S-Video %u", + dev->input_name_counter[inp->index]); + inp->std = V4L2_STD_ALL; + if (dev->has_audio_inputs) + inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1; + inp->capabilities = V4L2_IN_CAP_STD; + break; + case HDMI: + snprintf(inp->name, sizeof(inp->name), "HDMI %u", + dev->input_name_counter[inp->index]); + inp->capabilities = V4L2_IN_CAP_DV_TIMINGS; + if (dev->edid_blocks == 0 || + dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL) + inp->status |= V4L2_IN_ST_NO_SIGNAL; + else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK || + dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE) + inp->status |= V4L2_IN_ST_NO_H_LOCK; + break; + } + if (dev->sensor_hflip) + inp->status |= V4L2_IN_ST_HFLIP; + if (dev->sensor_vflip) + inp->status |= V4L2_IN_ST_VFLIP; + if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) { + if (dev->std_signal_mode[dev->input] == NO_SIGNAL) { + inp->status |= V4L2_IN_ST_NO_SIGNAL; + } else if (dev->std_signal_mode[dev->input] == NO_LOCK) { + inp->status |= V4L2_IN_ST_NO_H_LOCK; + } else if (vivid_is_tv_cap(dev)) { + switch (tpg_g_quality(&dev->tpg)) { + case TPG_QUAL_GRAY: + inp->status |= V4L2_IN_ST_COLOR_KILL; + break; + case TPG_QUAL_NOISE: + inp->status |= V4L2_IN_ST_NO_H_LOCK; + break; + default: + break; + } + } + } + return 0; +} + +int vidioc_g_input(struct file *file, void *priv, unsigned *i) +{ + struct vivid_dev *dev = video_drvdata(file); + + *i = dev->input; + return 0; +} + +int vidioc_s_input(struct file *file, void *priv, unsigned i) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt; + unsigned brightness; + + if (i >= dev->num_inputs) + return -EINVAL; + + if (i == dev->input) + return 0; + + if (vb2_is_busy(&dev->vb_vid_cap_q) || + vb2_is_busy(&dev->vb_vbi_cap_q) || + vb2_is_busy(&dev->vb_meta_cap_q)) + return -EBUSY; + + dev->input = i; + dev->vid_cap_dev.tvnorms = 0; + if (dev->input_type[i] == TV || dev->input_type[i] == SVID) { + dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1; + dev->vid_cap_dev.tvnorms = V4L2_STD_ALL; + } + dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms; + dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms; + vivid_update_format_cap(dev, false); + + if (dev->colorspace) { + switch (dev->input_type[i]) { + case WEBCAM: + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); + break; + case TV: + case SVID: + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); + break; + case HDMI: + if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) { + if (dev->src_rect.width == 720 && dev->src_rect.height <= 576) + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); + else + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709); + } else { + v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); + } + break; + } + } + + /* + * Modify the brightness range depending on the input. + * This makes it easy to use vivid to test if applications can + * handle control range modifications and is also how this is + * typically used in practice as different inputs may be hooked + * up to different receivers with different control ranges. + */ + brightness = 128 * i + dev->input_brightness[i]; + v4l2_ctrl_modify_range(dev->brightness, + 128 * i, 255 + 128 * i, 1, 128 + 128 * i); + v4l2_ctrl_s_ctrl(dev->brightness, brightness); + + /* Restore per-input states. */ + v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode, + vivid_is_hdmi_cap(dev)); + v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) && + dev->dv_timings_signal_mode[dev->input] == + SELECTED_DV_TIMINGS); + v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev)); + v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) && + dev->std_signal_mode[dev->input]); + + if (vivid_is_hdmi_cap(dev)) { + v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode, + dev->dv_timings_signal_mode[dev->input]); + v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings, + dev->query_dv_timings[dev->input]); + } else if (vivid_is_sdtv_cap(dev)) { + v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode, + dev->std_signal_mode[dev->input]); + v4l2_ctrl_s_ctrl(dev->ctrl_standard, + dev->std_signal_mode[dev->input]); + } + + return 0; +} + +int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + if (vin->index >= ARRAY_SIZE(vivid_audio_inputs)) + return -EINVAL; + *vin = vivid_audio_inputs[vin->index]; + return 0; +} + +int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_sdtv_cap(dev)) + return -EINVAL; + *vin = vivid_audio_inputs[dev->tv_audio_input]; + return 0; +} + +int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_sdtv_cap(dev)) + return -EINVAL; + if (vin->index >= ARRAY_SIZE(vivid_audio_inputs)) + return -EINVAL; + dev->tv_audio_input = vin->index; + return 0; +} + +int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (vf->tuner != 0) + return -EINVAL; + vf->frequency = dev->tv_freq; + return 0; +} + +int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (vf->tuner != 0) + return -EINVAL; + dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ); + if (vivid_is_tv_cap(dev)) + vivid_update_quality(dev); + return 0; +} + +int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (vt->index != 0) + return -EINVAL; + if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2) + return -EINVAL; + dev->tv_audmode = vt->audmode; + return 0; +} + +int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct vivid_dev *dev = video_drvdata(file); + enum tpg_quality qual; + + if (vt->index != 0) + return -EINVAL; + + vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + vt->audmode = dev->tv_audmode; + vt->rangelow = MIN_TV_FREQ; + vt->rangehigh = MAX_TV_FREQ; + qual = vivid_get_quality(dev, &vt->afc); + if (qual == TPG_QUAL_COLOR) + vt->signal = 0xffff; + else if (qual == TPG_QUAL_GRAY) + vt->signal = 0x8000; + else + vt->signal = 0; + if (qual == TPG_QUAL_NOISE) { + vt->rxsubchans = 0; + } else if (qual == TPG_QUAL_GRAY) { + vt->rxsubchans = V4L2_TUNER_SUB_MONO; + } else { + unsigned int channel_nr = dev->tv_freq / (6 * 16); + unsigned int options = + (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3; + + switch (channel_nr % options) { + case 0: + vt->rxsubchans = V4L2_TUNER_SUB_MONO; + break; + case 1: + vt->rxsubchans = V4L2_TUNER_SUB_STEREO; + break; + case 2: + if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) + vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP; + else + vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + break; + case 3: + vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP; + break; + } + } + strscpy(vt->name, "TV Tuner", sizeof(vt->name)); + return 0; +} + +/* Must remain in sync with the vivid_ctrl_standard_strings array */ +const v4l2_std_id vivid_standard[] = { + V4L2_STD_NTSC_M, + V4L2_STD_NTSC_M_JP, + V4L2_STD_NTSC_M_KR, + V4L2_STD_NTSC_443, + V4L2_STD_PAL_BG | V4L2_STD_PAL_H, + V4L2_STD_PAL_I, + V4L2_STD_PAL_DK, + V4L2_STD_PAL_M, + V4L2_STD_PAL_N, + V4L2_STD_PAL_Nc, + V4L2_STD_PAL_60, + V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, + V4L2_STD_SECAM_DK, + V4L2_STD_SECAM_L, + V4L2_STD_SECAM_LC, + V4L2_STD_UNKNOWN +}; + +/* Must remain in sync with the vivid_standard array */ +const char * const vivid_ctrl_standard_strings[] = { + "NTSC-M", + "NTSC-M-JP", + "NTSC-M-KR", + "NTSC-443", + "PAL-BGH", + "PAL-I", + "PAL-DK", + "PAL-M", + "PAL-N", + "PAL-Nc", + "PAL-60", + "SECAM-BGH", + "SECAM-DK", + "SECAM-L", + "SECAM-Lc", + NULL, +}; + +int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned int last = dev->query_std_last[dev->input]; + + if (!vivid_is_sdtv_cap(dev)) + return -ENODATA; + if (dev->std_signal_mode[dev->input] == NO_SIGNAL || + dev->std_signal_mode[dev->input] == NO_LOCK) { + *id = V4L2_STD_UNKNOWN; + return 0; + } + if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) { + *id = V4L2_STD_UNKNOWN; + } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) { + *id = dev->std_cap[dev->input]; + } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) { + *id = dev->query_std[dev->input]; + } else { + *id = vivid_standard[last]; + dev->query_std_last[dev->input] = + (last + 1) % ARRAY_SIZE(vivid_standard); + } + + return 0; +} + +int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_sdtv_cap(dev)) + return -ENODATA; + if (dev->std_cap[dev->input] == id) + return 0; + if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q)) + return -EBUSY; + dev->std_cap[dev->input] = id; + vivid_update_format_cap(dev, false); + return 0; +} + +static void find_aspect_ratio(u32 width, u32 height, + u32 *num, u32 *denom) +{ + if (!(height % 3) && ((height * 4 / 3) == width)) { + *num = 4; + *denom = 3; + } else if (!(height % 9) && ((height * 16 / 9) == width)) { + *num = 16; + *denom = 9; + } else if (!(height % 10) && ((height * 16 / 10) == width)) { + *num = 16; + *denom = 10; + } else if (!(height % 4) && ((height * 5 / 4) == width)) { + *num = 5; + *denom = 4; + } else if (!(height % 9) && ((height * 15 / 9) == width)) { + *num = 15; + *denom = 9; + } else { /* default to 16:9 */ + *num = 16; + *denom = 9; + } +} + +static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings) +{ + struct v4l2_bt_timings *bt = &timings->bt; + u32 total_h_pixel; + u32 total_v_lines; + u32 h_freq; + + if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, + NULL, NULL)) + return false; + + total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt); + total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt); + + h_freq = (u32)bt->pixelclock / total_h_pixel; + + if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) { + if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width, + bt->polarities, bt->interlaced, timings)) + return true; + } + + if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) { + struct v4l2_fract aspect_ratio; + + find_aspect_ratio(bt->width, bt->height, + &aspect_ratio.numerator, + &aspect_ratio.denominator); + if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync, + bt->polarities, bt->interlaced, + aspect_ratio, timings)) + return true; + } + return false; +} + +int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh, + struct v4l2_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_hdmi_cap(dev)) + return -ENODATA; + if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap, + 0, NULL, NULL) && + !valid_cvt_gtf_timings(timings)) + return -EINVAL; + + if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input], + 0, false)) + return 0; + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + + dev->dv_timings_cap[dev->input] = *timings; + vivid_update_format_cap(dev, false); + return 0; +} + +int vidioc_query_dv_timings(struct file *file, void *_fh, + struct v4l2_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned int input = dev->input; + unsigned int last = dev->query_dv_timings_last[input]; + + if (!vivid_is_hdmi_cap(dev)) + return -ENODATA; + if (dev->dv_timings_signal_mode[input] == NO_SIGNAL || + dev->edid_blocks == 0) + return -ENOLINK; + if (dev->dv_timings_signal_mode[input] == NO_LOCK) + return -ENOLCK; + if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) { + timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2; + return -ERANGE; + } + if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) { + *timings = dev->dv_timings_cap[input]; + } else if (dev->dv_timings_signal_mode[input] == + SELECTED_DV_TIMINGS) { + *timings = + v4l2_dv_timings_presets[dev->query_dv_timings[input]]; + } else { + *timings = + v4l2_dv_timings_presets[last]; + dev->query_dv_timings_last[input] = + (last + 1) % dev->query_dv_timings_size; + } + return 0; +} + +int vidioc_s_edid(struct file *file, void *_fh, + struct v4l2_edid *edid) +{ + struct vivid_dev *dev = video_drvdata(file); + u16 phys_addr; + u32 display_present = 0; + unsigned int i, j; + int ret; + + memset(edid->reserved, 0, sizeof(edid->reserved)); + if (edid->pad >= dev->num_inputs) + return -EINVAL; + if (dev->input_type[edid->pad] != HDMI || edid->start_block) + return -EINVAL; + if (edid->blocks == 0) { + dev->edid_blocks = 0; + v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, 0); + v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, 0); + phys_addr = CEC_PHYS_ADDR_INVALID; + goto set_phys_addr; + } + if (edid->blocks > dev->edid_max_blocks) { + edid->blocks = dev->edid_max_blocks; + return -E2BIG; + } + phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL); + ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL); + if (ret) + return ret; + + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + + dev->edid_blocks = edid->blocks; + memcpy(dev->edid, edid->edid, edid->blocks * 128); + + for (i = 0, j = 0; i < dev->num_outputs; i++) + if (dev->output_type[i] == HDMI) + display_present |= + dev->display_present[i] << j++; + + v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, display_present); + v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, display_present); + +set_phys_addr: + /* TODO: a proper hotplug detect cycle should be emulated here */ + cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false); + + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) + cec_s_phys_addr(dev->cec_tx_adap[i], + dev->display_present[i] ? + v4l2_phys_addr_for_input(phys_addr, i + 1) : + CEC_PHYS_ADDR_INVALID, + false); + return 0; +} + +int vidioc_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_webcam(dev) && !dev->has_scaler_cap) + return -EINVAL; + if (vivid_get_format(dev, fsize->pixel_format) == NULL) + return -EINVAL; + if (vivid_is_webcam(dev)) { + if (fsize->index >= ARRAY_SIZE(webcam_sizes)) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete = webcam_sizes[fsize->index]; + return 0; + } + if (fsize->index) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = MIN_WIDTH; + fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM; + fsize->stepwise.step_width = 2; + fsize->stepwise.min_height = MIN_HEIGHT; + fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM; + fsize->stepwise.step_height = 2; + return 0; +} + +/* timeperframe is arbitrary and continuous */ +int vidioc_enum_frameintervals(struct file *file, void *priv, + struct v4l2_frmivalenum *fival) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct vivid_fmt *fmt; + int i; + + fmt = vivid_get_format(dev, fival->pixel_format); + if (!fmt) + return -EINVAL; + + if (!vivid_is_webcam(dev)) { + if (fival->index) + return -EINVAL; + if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM) + return -EINVAL; + if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM) + return -EINVAL; + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete = dev->timeperframe_vid_cap; + return 0; + } + + for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++) + if (fival->width == webcam_sizes[i].width && + fival->height == webcam_sizes[i].height) + break; + if (i == ARRAY_SIZE(webcam_sizes)) + return -EINVAL; + if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i)) + return -EINVAL; + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete = webcam_intervals[fival->index]; + return 0; +} + +int vivid_vid_cap_g_parm(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (parm->type != (dev->multiplanar ? + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : + V4L2_BUF_TYPE_VIDEO_CAPTURE)) + return -EINVAL; + + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe = dev->timeperframe_vid_cap; + parm->parm.capture.readbuffers = 1; + return 0; +} + +int vivid_vid_cap_s_parm(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct vivid_dev *dev = video_drvdata(file); + unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx); + struct v4l2_fract tpf; + unsigned i; + + if (parm->type != (dev->multiplanar ? + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : + V4L2_BUF_TYPE_VIDEO_CAPTURE)) + return -EINVAL; + if (!vivid_is_webcam(dev)) + return vivid_vid_cap_g_parm(file, priv, parm); + + tpf = parm->parm.capture.timeperframe; + + if (tpf.denominator == 0) + tpf = webcam_intervals[ival_sz - 1]; + for (i = 0; i < ival_sz; i++) + if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i])) + break; + if (i == ival_sz) + i = ival_sz - 1; + dev->webcam_ival_idx = i; + tpf = webcam_intervals[dev->webcam_ival_idx]; + + /* resync the thread's timings */ + dev->cap_seq_resync = true; + dev->timeperframe_vid_cap = tpf; + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe = tpf; + parm->parm.capture.readbuffers = 1; + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.h b/drivers/media/test-drivers/vivid/vivid-vid-cap.h new file mode 100644 index 000000000..1e422a59e --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vid-cap.h - video capture support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VID_CAP_H_ +#define _VIVID_VID_CAP_H_ + +void vivid_update_quality(struct vivid_dev *dev); +void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls); +enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev); + +extern const v4l2_std_id vivid_standard[]; +extern const char * const vivid_ctrl_standard_strings[]; + +extern const struct vb2_ops vivid_vid_cap_qops; + +int vivid_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vivid_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vivid_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f); +int vivid_vid_cap_g_selection(struct file *file, void *priv, struct v4l2_selection *sel); +int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s); +int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f); +int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_fmtdesc *f); +int vidioc_g_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i); +int vivid_vid_cap_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *a); +int vivid_vid_cap_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *a); +int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *inp); +int vidioc_g_input(struct file *file, void *priv, unsigned *i); +int vidioc_s_input(struct file *file, void *priv, unsigned i); +int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin); +int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin); +int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin); +int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf); +int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf); +int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt); +int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt); +int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id); +int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id); +int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings); +int vidioc_query_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings); +int vidioc_s_edid(struct file *file, void *_fh, struct v4l2_edid *edid); +int vidioc_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize); +int vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *fival); +int vivid_vid_cap_g_parm(struct file *file, void *priv, struct v4l2_streamparm *parm); +int vivid_vid_cap_s_parm(struct file *file, void *priv, struct v4l2_streamparm *parm); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vid-common.c b/drivers/media/test-drivers/vivid/vivid-vid-common.c new file mode 100644 index 000000000..38d788b5c --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-common.c @@ -0,0 +1,1075 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vid-common.c - common video support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" + +const struct v4l2_dv_timings_cap vivid_dv_timings_cap = { + .type = V4L2_DV_BT_656_1120, + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(16, MAX_WIDTH, 16, MAX_HEIGHT, 14000000, 775000000, + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF, + V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED) +}; + +/* ------------------------------------------------------------------ + Basic structures + ------------------------------------------------------------------*/ + +struct vivid_fmt vivid_formats[] = { + { + .fourcc = V4L2_PIX_FMT_YUYV, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 1, + .buffers = 1, + .data_offset = { PLANE0_DATA_OFFSET }, + }, + { + .fourcc = V4L2_PIX_FMT_UYVY, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YVYU, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_VYUY, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YUV422P, + .vdownsampling = { 1, 1, 1 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YUV420, + .vdownsampling = { 1, 2, 2 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YVU420, + .vdownsampling = { 1, 2, 2 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV12, + .vdownsampling = { 1, 2 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV21, + .vdownsampling = { 1, 2 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV16, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV61, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV24, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_NV42, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 16 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YUV555, /* uuuvvvvv ayyyyyuu */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x8000, + }, + { + .fourcc = V4L2_PIX_FMT_YUV565, /* uuuvvvvv yyyyyuuu */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YUV444, /* uuuuvvvv aaaayyyy */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0xf000, + }, + { + .fourcc = V4L2_PIX_FMT_YUV32, /* ayuv */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x000000ff, + }, + { + .fourcc = V4L2_PIX_FMT_AYUV32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x000000ff, + }, + { + .fourcc = V4L2_PIX_FMT_XYUV32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_VUYA32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0xff000000, + }, + { + .fourcc = V4L2_PIX_FMT_VUYX32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_YUVA32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0xff000000, + }, + { + .fourcc = V4L2_PIX_FMT_YUVX32, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_GREY, + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .color_enc = TGP_COLOR_ENC_LUMA, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_Y10, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_LUMA, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_Y12, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_LUMA, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_Y16, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_LUMA, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_Y16_BE, + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .color_enc = TGP_COLOR_ENC_LUMA, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_RGB332, /* rrrgggbb */ + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_RGB444, /* ggggbbbb xxxxrrrr */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_XRGB444, /* ggggbbbb xxxxrrrr */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_ARGB444, /* ggggbbbb aaaarrrr */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x00f0, + }, + { + .fourcc = V4L2_PIX_FMT_RGBX444, /* bbbbxxxx rrrrgggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_RGBA444, /* bbbbaaaa rrrrgggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x00f0, + }, + { + .fourcc = V4L2_PIX_FMT_XBGR444, /* ggggrrrr xxxxbbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_ABGR444, /* ggggrrrr aaaabbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x00f0, + }, + { + .fourcc = V4L2_PIX_FMT_BGRX444, /* rrrrxxxx bbbbgggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_BGRA444, /* rrrraaaa bbbbgggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x00f0, + }, + { + .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + .alpha_mask = 0x8000, + }, + { + .fourcc = V4L2_PIX_FMT_RGBX555, /* ggbbbbbx rrrrrggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_RGBA555, /* ggbbbbba rrrrrggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + .alpha_mask = 0x8000, + }, + { + .fourcc = V4L2_PIX_FMT_XBGR555, /* gggrrrrr xbbbbbgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_ABGR555, /* gggrrrrr abbbbbgg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + .alpha_mask = 0x8000, + }, + { + .fourcc = V4L2_PIX_FMT_BGRX555, /* ggrrrrrx bbbbbggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + }, + { + .fourcc = V4L2_PIX_FMT_BGRA555, /* ggrrrrra bbbbbggg */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .can_do_overlay = true, + .alpha_mask = 0x8000, + }, + { + .fourcc = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x0080, + }, + { + .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */ + .vdownsampling = { 1 }, + .bit_depth = { 24 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */ + .vdownsampling = { 1 }, + .bit_depth = { 24 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_BGR666, /* bbbbbbgg ggggrrrr rrxxxxxx */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_RGB32, /* xrgb */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_BGR32, /* bgrx */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_XRGB32, /* xrgb */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_XBGR32, /* bgrx */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_ARGB32, /* argb */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x000000ff, + }, + { + .fourcc = V4L2_PIX_FMT_ABGR32, /* bgra */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0xff000000, + }, + { + .fourcc = V4L2_PIX_FMT_RGBX32, /* rgbx */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_BGRX32, /* xbgr */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_RGBA32, /* rgba */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0x000000ff, + }, + { + .fourcc = V4L2_PIX_FMT_BGRA32, /* abgr */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + .alpha_mask = 0xff000000, + }, + { + .fourcc = V4L2_PIX_FMT_SBGGR8, /* Bayer BG/GR */ + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGBRG8, /* Bayer GB/RG */ + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGRBG8, /* Bayer GR/BG */ + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SRGGB8, /* Bayer RG/GB */ + .vdownsampling = { 1 }, + .bit_depth = { 8 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SBGGR10, /* Bayer BG/GR */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGBRG10, /* Bayer GB/RG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGRBG10, /* Bayer GR/BG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SRGGB10, /* Bayer RG/GB */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SBGGR12, /* Bayer BG/GR */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGBRG12, /* Bayer GB/RG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGRBG12, /* Bayer GR/BG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SRGGB12, /* Bayer RG/GB */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SBGGR16, /* Bayer BG/GR */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGBRG16, /* Bayer GB/RG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SGRBG16, /* Bayer GR/BG */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_SRGGB16, /* Bayer RG/GB */ + .vdownsampling = { 1 }, + .bit_depth = { 16 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_HSV24, /* HSV 24bits */ + .color_enc = TGP_COLOR_ENC_HSV, + .vdownsampling = { 1 }, + .bit_depth = { 24 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_HSV32, /* HSV 32bits */ + .color_enc = TGP_COLOR_ENC_HSV, + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, + + /* Multiplanar formats */ + + { + .fourcc = V4L2_PIX_FMT_NV16M, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 2, + .data_offset = { PLANE0_DATA_OFFSET, 0 }, + }, + { + .fourcc = V4L2_PIX_FMT_NV61M, + .vdownsampling = { 1, 1 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 2, + .data_offset = { 0, PLANE0_DATA_OFFSET }, + }, + { + .fourcc = V4L2_PIX_FMT_YUV420M, + .vdownsampling = { 1, 2, 2 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, + { + .fourcc = V4L2_PIX_FMT_YVU420M, + .vdownsampling = { 1, 2, 2 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, + { + .fourcc = V4L2_PIX_FMT_NV12M, + .vdownsampling = { 1, 2 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 2, + }, + { + .fourcc = V4L2_PIX_FMT_NV21M, + .vdownsampling = { 1, 2 }, + .bit_depth = { 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 2, + .buffers = 2, + }, + { + .fourcc = V4L2_PIX_FMT_YUV422M, + .vdownsampling = { 1, 1, 1 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, + { + .fourcc = V4L2_PIX_FMT_YVU422M, + .vdownsampling = { 1, 1, 1 }, + .bit_depth = { 8, 4, 4 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, + { + .fourcc = V4L2_PIX_FMT_YUV444M, + .vdownsampling = { 1, 1, 1 }, + .bit_depth = { 8, 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, + { + .fourcc = V4L2_PIX_FMT_YVU444M, + .vdownsampling = { 1, 1, 1 }, + .bit_depth = { 8, 8, 8 }, + .color_enc = TGP_COLOR_ENC_YCBCR, + .planes = 3, + .buffers = 3, + }, +}; + +/* There are this many multiplanar formats in the list */ +#define VIVID_MPLANAR_FORMATS 10 + +const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat) +{ + const struct vivid_fmt *fmt; + unsigned k; + + for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) { + fmt = &vivid_formats[k]; + if (fmt->fourcc == pixelformat) + if (fmt->buffers == 1 || dev->multiplanar) + return fmt; + } + + return NULL; +} + +bool vivid_vid_can_loop(struct vivid_dev *dev) +{ + if (dev->src_rect.width != dev->sink_rect.width || + dev->src_rect.height != dev->sink_rect.height) + return false; + if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc) + return false; + if (dev->field_cap != dev->field_out) + return false; + /* + * While this can be supported, it is just too much work + * to actually implement. + */ + if (dev->field_cap == V4L2_FIELD_SEQ_TB || + dev->field_cap == V4L2_FIELD_SEQ_BT) + return false; + if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) { + if (!(dev->std_cap[dev->input] & V4L2_STD_525_60) != + !(dev->std_out & V4L2_STD_525_60)) + return false; + return true; + } + if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev)) + return true; + return false; +} + +void vivid_send_source_change(struct vivid_dev *dev, unsigned type) +{ + struct v4l2_event ev = { + .type = V4L2_EVENT_SOURCE_CHANGE, + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, + }; + unsigned i; + + for (i = 0; i < dev->num_inputs; i++) { + ev.id = i; + if (dev->input_type[i] == type) { + if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap) + v4l2_event_queue(&dev->vid_cap_dev, &ev); + if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap) + v4l2_event_queue(&dev->vbi_cap_dev, &ev); + } + } +} + +/* + * Conversion function that converts a single-planar format to a + * single-plane multiplanar format. + */ +void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt) +{ + struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp; + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; + const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix; + bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT; + + memset(mp->reserved, 0, sizeof(mp->reserved)); + mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + mp->width = pix->width; + mp->height = pix->height; + mp->pixelformat = pix->pixelformat; + mp->field = pix->field; + mp->colorspace = pix->colorspace; + mp->xfer_func = pix->xfer_func; + /* Also copies hsv_enc */ + mp->ycbcr_enc = pix->ycbcr_enc; + mp->quantization = pix->quantization; + mp->num_planes = 1; + mp->flags = pix->flags; + ppix->sizeimage = pix->sizeimage; + ppix->bytesperline = pix->bytesperline; + memset(ppix->reserved, 0, sizeof(ppix->reserved)); +} + +int fmt_sp2mp_func(struct file *file, void *priv, + struct v4l2_format *f, fmtfunc func) +{ + struct v4l2_format fmt; + struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp; + struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0]; + struct v4l2_pix_format *pix = &f->fmt.pix; + int ret; + + /* Converts to a mplane format */ + fmt_sp2mp(f, &fmt); + /* Passes it to the generic mplane format function */ + ret = func(file, priv, &fmt); + /* Copies back the mplane data to the single plane format */ + pix->width = mp->width; + pix->height = mp->height; + pix->pixelformat = mp->pixelformat; + pix->field = mp->field; + pix->colorspace = mp->colorspace; + pix->xfer_func = mp->xfer_func; + /* Also copies hsv_enc */ + pix->ycbcr_enc = mp->ycbcr_enc; + pix->quantization = mp->quantization; + pix->sizeimage = ppix->sizeimage; + pix->bytesperline = ppix->bytesperline; + pix->flags = mp->flags; + return ret; +} + +int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r) +{ + unsigned w = r->width; + unsigned h = r->height; + + /* sanitize w and h in case someone passes ~0 as the value */ + w &= 0xffff; + h &= 0xffff; + if (!(flags & V4L2_SEL_FLAG_LE)) { + w++; + h++; + if (w < 2) + w = 2; + if (h < 2) + h = 2; + } + if (!(flags & V4L2_SEL_FLAG_GE)) { + if (w > MAX_WIDTH) + w = MAX_WIDTH; + if (h > MAX_HEIGHT) + h = MAX_HEIGHT; + } + w = w & ~1; + h = h & ~1; + if (w < 2 || h < 2) + return -ERANGE; + if (w > MAX_WIDTH || h > MAX_HEIGHT) + return -ERANGE; + if (r->top < 0) + r->top = 0; + if (r->left < 0) + r->left = 0; + /* sanitize left and top in case someone passes ~0 as the value */ + r->left &= 0xfffe; + r->top &= 0xfffe; + if (r->left + w > MAX_WIDTH) + r->left = MAX_WIDTH - w; + if (r->top + h > MAX_HEIGHT) + r->top = MAX_HEIGHT - h; + if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) == + (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) && + (r->width != w || r->height != h)) + return -ERANGE; + r->width = w; + r->height = h; + return 0; +} + +int vivid_enum_fmt_vid(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct vivid_fmt *fmt; + + if (f->index >= ARRAY_SIZE(vivid_formats) - + (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS)) + return -EINVAL; + + fmt = &vivid_formats[f->index]; + + f->pixelformat = fmt->fourcc; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && + f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return 0; + /* + * For capture devices, we support the CSC API. + * We allow userspace to: + * 1. set the colorspace + * 2. set the xfer_func + * 3. set the ycbcr_enc on YUV formats + * 4. set the hsv_enc on HSV formats + * 5. set the quantization on YUV and RGB formats + */ + f->flags |= V4L2_FMT_FLAG_CSC_COLORSPACE; + f->flags |= V4L2_FMT_FLAG_CSC_XFER_FUNC; + + if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) { + f->flags |= V4L2_FMT_FLAG_CSC_YCBCR_ENC; + f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION; + } else if (fmt->color_enc == TGP_COLOR_ENC_HSV) { + f->flags |= V4L2_FMT_FLAG_CSC_HSV_ENC; + } else if (fmt->color_enc == TGP_COLOR_ENC_RGB) { + f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION; + } + + return 0; +} + +int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) { + if (!vivid_is_sdtv_cap(dev)) + return -ENODATA; + *id = dev->std_cap[dev->input]; + } else { + if (!vivid_is_svid_out(dev)) + return -ENODATA; + *id = dev->std_out; + } + return 0; +} + +int vidioc_g_dv_timings(struct file *file, void *_fh, + struct v4l2_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) { + if (!vivid_is_hdmi_cap(dev)) + return -ENODATA; + *timings = dev->dv_timings_cap[dev->input]; + } else { + if (!vivid_is_hdmi_out(dev)) + return -ENODATA; + *timings = dev->dv_timings_out; + } + return 0; +} + +int vidioc_enum_dv_timings(struct file *file, void *_fh, + struct v4l2_enum_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) { + if (!vivid_is_hdmi_cap(dev)) + return -ENODATA; + } else { + if (!vivid_is_hdmi_out(dev)) + return -ENODATA; + } + return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap, + NULL, NULL); +} + +int vidioc_dv_timings_cap(struct file *file, void *_fh, + struct v4l2_dv_timings_cap *cap) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_dir == VFL_DIR_RX) { + if (!vivid_is_hdmi_cap(dev)) + return -ENODATA; + } else { + if (!vivid_is_hdmi_out(dev)) + return -ENODATA; + } + *cap = vivid_dv_timings_cap; + return 0; +} + +int vidioc_g_edid(struct file *file, void *_fh, + struct v4l2_edid *edid) +{ + struct vivid_dev *dev = video_drvdata(file); + struct video_device *vdev = video_devdata(file); + struct cec_adapter *adap; + + memset(edid->reserved, 0, sizeof(edid->reserved)); + if (vdev->vfl_dir == VFL_DIR_RX) { + if (edid->pad >= dev->num_inputs) + return -EINVAL; + if (dev->input_type[edid->pad] != HDMI) + return -EINVAL; + adap = dev->cec_rx_adap; + } else { + unsigned int bus_idx; + + if (edid->pad >= dev->num_outputs) + return -EINVAL; + if (dev->output_type[edid->pad] != HDMI) + return -EINVAL; + if (!dev->display_present[edid->pad]) + return -ENODATA; + bus_idx = dev->cec_output2bus_map[edid->pad]; + adap = dev->cec_tx_adap[bus_idx]; + } + if (edid->start_block == 0 && edid->blocks == 0) { + edid->blocks = dev->edid_blocks; + return 0; + } + if (dev->edid_blocks == 0) + return -ENODATA; + if (edid->start_block >= dev->edid_blocks) + return -EINVAL; + if (edid->blocks > dev->edid_blocks - edid->start_block) + edid->blocks = dev->edid_blocks - edid->start_block; + if (adap) + v4l2_set_edid_phys_addr(dev->edid, dev->edid_blocks * 128, adap->phys_addr); + memcpy(edid->edid, dev->edid + edid->start_block * 128, edid->blocks * 128); + return 0; +} diff --git a/drivers/media/test-drivers/vivid/vivid-vid-common.h b/drivers/media/test-drivers/vivid/vivid-vid-common.h new file mode 100644 index 000000000..d908d9725 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-common.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vid-common.h - common video support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VID_COMMON_H_ +#define _VIVID_VID_COMMON_H_ + +typedef int (*fmtfunc)(struct file *file, void *priv, struct v4l2_format *f); + +/* + * Conversion function that converts a single-planar format to a + * single-plane multiplanar format. + */ +void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt); +int fmt_sp2mp_func(struct file *file, void *priv, + struct v4l2_format *f, fmtfunc func); + +extern const struct v4l2_dv_timings_cap vivid_dv_timings_cap; + +const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat); + +bool vivid_vid_can_loop(struct vivid_dev *dev); +void vivid_send_source_change(struct vivid_dev *dev, unsigned type); + +int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r); + +int vivid_enum_fmt_vid(struct file *file, void *priv, struct v4l2_fmtdesc *f); +int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id); +int vidioc_g_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings); +int vidioc_enum_dv_timings(struct file *file, void *_fh, struct v4l2_enum_dv_timings *timings); +int vidioc_dv_timings_cap(struct file *file, void *_fh, struct v4l2_dv_timings_cap *cap); +int vidioc_g_edid(struct file *file, void *_fh, struct v4l2_edid *edid); +int vidioc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub); + +#endif diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c new file mode 100644 index 000000000..9f731f085 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c @@ -0,0 +1,1206 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-vid-out.c - video output support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-rect.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-kthread-out.h" +#include "vivid-vid-out.h" + +static int vid_out_queue_setup(struct vb2_queue *vq, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + const struct vivid_fmt *vfmt = dev->fmt_out; + unsigned planes = vfmt->buffers; + unsigned h = dev->fmt_out_rect.height; + unsigned int size = dev->bytesperline_out[0] * h + vfmt->data_offset[0]; + unsigned p; + + for (p = vfmt->buffers; p < vfmt->planes; p++) + size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p] + + vfmt->data_offset[p]; + + if (dev->field_out == V4L2_FIELD_ALTERNATE) { + /* + * You cannot use write() with FIELD_ALTERNATE since the field + * information (TOP/BOTTOM) cannot be passed to the kernel. + */ + if (vb2_fileio_is_active(vq)) + return -EINVAL; + } + + if (dev->queue_setup_error) { + /* + * Error injection: test what happens if queue_setup() returns + * an error. + */ + dev->queue_setup_error = false; + return -EINVAL; + } + + if (*nplanes) { + /* + * Check if the number of requested planes match + * the number of planes in the current format. You can't mix that. + */ + if (*nplanes != planes) + return -EINVAL; + if (sizes[0] < size) + return -EINVAL; + for (p = 1; p < planes; p++) { + if (sizes[p] < dev->bytesperline_out[p] * h + + vfmt->data_offset[p]) + return -EINVAL; + } + } else { + for (p = 0; p < planes; p++) + sizes[p] = p ? dev->bytesperline_out[p] * h + + vfmt->data_offset[p] : size; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = planes; + + dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers); + for (p = 0; p < planes; p++) + dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]); + return 0; +} + +static int vid_out_buf_out_validate(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->field_out != V4L2_FIELD_ALTERNATE) + vbuf->field = dev->field_out; + else if (vbuf->field != V4L2_FIELD_TOP && + vbuf->field != V4L2_FIELD_BOTTOM) + return -EINVAL; + return 0; +} + +static int vid_out_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + const struct vivid_fmt *vfmt = dev->fmt_out; + unsigned int planes = vfmt->buffers; + unsigned int h = dev->fmt_out_rect.height; + unsigned int size = dev->bytesperline_out[0] * h; + unsigned p; + + for (p = vfmt->buffers; p < vfmt->planes; p++) + size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p]; + + dprintk(dev, 1, "%s\n", __func__); + + if (WARN_ON(NULL == dev->fmt_out)) + return -EINVAL; + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + + for (p = 0; p < planes; p++) { + if (p) + size = dev->bytesperline_out[p] * h; + size += vb->planes[p].data_offset; + + if (vb2_get_plane_payload(vb, p) < size) { + dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %u)\n", + __func__, p, vb2_get_plane_payload(vb, p), size); + return -EINVAL; + } + } + + return 0; +} + +static void vid_out_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->vid_out_active); + spin_unlock(&dev->slock); +} + +static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + if (vb2_is_streaming(&dev->vb_vid_cap_q)) + dev->can_loop_video = vivid_vid_can_loop(dev); + + dev->vid_out_seq_count = 0; + dprintk(dev, 1, "%s\n", __func__); + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void vid_out_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_vid_out(dev, &dev->vid_out_streaming); + dev->can_loop_video = false; +} + +static void vid_out_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_out); +} + +const struct vb2_ops vivid_vid_out_qops = { + .queue_setup = vid_out_queue_setup, + .buf_out_validate = vid_out_buf_out_validate, + .buf_prepare = vid_out_buf_prepare, + .buf_queue = vid_out_buf_queue, + .start_streaming = vid_out_start_streaming, + .stop_streaming = vid_out_stop_streaming, + .buf_request_complete = vid_out_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +/* + * Called whenever the format has to be reset which can occur when + * changing outputs, standard, timings, etc. + */ +void vivid_update_format_out(struct vivid_dev *dev) +{ + struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt; + unsigned size, p; + u64 pixelclock; + + switch (dev->output_type[dev->output]) { + case SVID: + default: + dev->field_out = dev->tv_field_out; + dev->sink_rect.width = 720; + if (dev->std_out & V4L2_STD_525_60) { + dev->sink_rect.height = 480; + dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 }; + dev->service_set_out = V4L2_SLICED_CAPTION_525; + } else { + dev->sink_rect.height = 576; + dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 }; + dev->service_set_out = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + } + dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M; + break; + case HDMI: + dev->sink_rect.width = bt->width; + dev->sink_rect.height = bt->height; + size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt); + + if (can_reduce_fps(bt) && (bt->flags & V4L2_DV_FL_REDUCED_FPS)) + pixelclock = div_u64(bt->pixelclock * 1000, 1001); + else + pixelclock = bt->pixelclock; + + dev->timeperframe_vid_out = (struct v4l2_fract) { + size / 100, (u32)pixelclock / 100 + }; + if (bt->interlaced) + dev->field_out = V4L2_FIELD_ALTERNATE; + else + dev->field_out = V4L2_FIELD_NONE; + if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) { + if (bt->width == 720 && bt->height <= 576) + dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M; + else + dev->colorspace_out = V4L2_COLORSPACE_REC709; + } else { + dev->colorspace_out = V4L2_COLORSPACE_SRGB; + } + break; + } + dev->xfer_func_out = V4L2_XFER_FUNC_DEFAULT; + dev->ycbcr_enc_out = V4L2_YCBCR_ENC_DEFAULT; + dev->hsv_enc_out = V4L2_HSV_ENC_180; + dev->quantization_out = V4L2_QUANTIZATION_DEFAULT; + dev->compose_out = dev->sink_rect; + dev->compose_bounds_out = dev->sink_rect; + dev->crop_out = dev->compose_out; + if (V4L2_FIELD_HAS_T_OR_B(dev->field_out)) + dev->crop_out.height /= 2; + dev->fmt_out_rect = dev->crop_out; + for (p = 0; p < dev->fmt_out->planes; p++) + dev->bytesperline_out[p] = + (dev->sink_rect.width * dev->fmt_out->bit_depth[p]) / 8; +} + +/* Map the field to something that is valid for the current output */ +static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field) +{ + if (vivid_is_svid_out(dev)) { + switch (field) { + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + case V4L2_FIELD_SEQ_TB: + case V4L2_FIELD_SEQ_BT: + case V4L2_FIELD_ALTERNATE: + return field; + case V4L2_FIELD_INTERLACED: + default: + return V4L2_FIELD_INTERLACED; + } + } + if (vivid_is_hdmi_out(dev)) + return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE : + V4L2_FIELD_NONE; + return V4L2_FIELD_NONE; +} + +static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev) +{ + if (vivid_is_svid_out(dev)) + return (dev->std_out & V4L2_STD_525_60) ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + if (vivid_is_hdmi_out(dev) && + dev->sink_rect.width == 720 && dev->sink_rect.height <= 576) + return dev->sink_rect.height == 480 ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + return TPG_PIXEL_ASPECT_SQUARE; +} + +int vivid_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + const struct vivid_fmt *fmt = dev->fmt_out; + unsigned p; + + mp->width = dev->fmt_out_rect.width; + mp->height = dev->fmt_out_rect.height; + mp->field = dev->field_out; + mp->pixelformat = fmt->fourcc; + mp->colorspace = dev->colorspace_out; + mp->xfer_func = dev->xfer_func_out; + mp->ycbcr_enc = dev->ycbcr_enc_out; + mp->quantization = dev->quantization_out; + mp->num_planes = fmt->buffers; + for (p = 0; p < mp->num_planes; p++) { + mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p]; + mp->plane_fmt[p].sizeimage = + mp->plane_fmt[p].bytesperline * mp->height + + fmt->data_offset[p]; + } + for (p = fmt->buffers; p < fmt->planes; p++) { + unsigned stride = dev->bytesperline_out[p]; + + mp->plane_fmt[0].sizeimage += + (stride * mp->height) / fmt->vdownsampling[p]; + } + return 0; +} + +int vivid_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt; + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *pfmt = mp->plane_fmt; + const struct vivid_fmt *fmt; + unsigned bytesperline, max_bpl; + unsigned factor = 1; + unsigned w, h; + unsigned p; + + fmt = vivid_get_format(dev, mp->pixelformat); + if (!fmt) { + dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n", + mp->pixelformat); + mp->pixelformat = V4L2_PIX_FMT_YUYV; + fmt = vivid_get_format(dev, mp->pixelformat); + } + + mp->field = vivid_field_out(dev, mp->field); + if (vivid_is_svid_out(dev)) { + w = 720; + h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576; + } else { + w = dev->sink_rect.width; + h = dev->sink_rect.height; + } + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) { + mp->width = w; + mp->height = h / factor; + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor }; + + v4l2_rect_set_min_size(&r, &vivid_min_rect); + v4l2_rect_set_max_size(&r, &vivid_max_rect); + if (dev->has_scaler_out && !dev->has_crop_out) { + struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h }; + + v4l2_rect_set_max_size(&r, &max_r); + } else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) { + v4l2_rect_set_max_size(&r, &dev->sink_rect); + } else if (!dev->has_scaler_out && !dev->has_compose_out) { + v4l2_rect_set_min_size(&r, &dev->sink_rect); + } + mp->width = r.width; + mp->height = r.height / factor; + } + + /* This driver supports custom bytesperline values */ + + mp->num_planes = fmt->buffers; + for (p = 0; p < fmt->buffers; p++) { + /* Calculate the minimum supported bytesperline value */ + bytesperline = (mp->width * fmt->bit_depth[p]) >> 3; + /* Calculate the maximum supported bytesperline value */ + max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3; + + if (pfmt[p].bytesperline > max_bpl) + pfmt[p].bytesperline = max_bpl; + if (pfmt[p].bytesperline < bytesperline) + pfmt[p].bytesperline = bytesperline; + + pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) / + fmt->vdownsampling[p] + fmt->data_offset[p]; + + memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved)); + } + for (p = fmt->buffers; p < fmt->planes; p++) + pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height * + (fmt->bit_depth[p] / fmt->vdownsampling[p])) / + (fmt->bit_depth[0] / fmt->vdownsampling[0]); + + mp->xfer_func = V4L2_XFER_FUNC_DEFAULT; + mp->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; + mp->quantization = V4L2_QUANTIZATION_DEFAULT; + if (vivid_is_svid_out(dev)) { + mp->colorspace = V4L2_COLORSPACE_SMPTE170M; + } else if (dev->dvi_d_out || !(bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) { + mp->colorspace = V4L2_COLORSPACE_SRGB; + if (dev->dvi_d_out) + mp->quantization = V4L2_QUANTIZATION_LIM_RANGE; + } else if (bt->width == 720 && bt->height <= 576) { + mp->colorspace = V4L2_COLORSPACE_SMPTE170M; + } else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M && + mp->colorspace != V4L2_COLORSPACE_REC709 && + mp->colorspace != V4L2_COLORSPACE_OPRGB && + mp->colorspace != V4L2_COLORSPACE_BT2020 && + mp->colorspace != V4L2_COLORSPACE_SRGB) { + mp->colorspace = V4L2_COLORSPACE_REC709; + } + memset(mp->reserved, 0, sizeof(mp->reserved)); + return 0; +} + +int vivid_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rect *crop = &dev->crop_out; + struct v4l2_rect *compose = &dev->compose_out; + struct vb2_queue *q = &dev->vb_vid_out_q; + int ret = vivid_try_fmt_vid_out(file, priv, f); + unsigned factor = 1; + unsigned p; + + if (ret < 0) + return ret; + + if (vb2_is_busy(q) && + (vivid_is_svid_out(dev) || + mp->width != dev->fmt_out_rect.width || + mp->height != dev->fmt_out_rect.height || + mp->pixelformat != dev->fmt_out->fourcc || + mp->field != dev->field_out)) { + dprintk(dev, 1, "%s device busy\n", __func__); + return -EBUSY; + } + + /* + * Allow for changing the colorspace on the fly. Useful for testing + * purposes, and it is something that HDMI transmitters are able + * to do. + */ + if (vb2_is_busy(q)) + goto set_colorspace; + + dev->fmt_out = vivid_get_format(dev, mp->pixelformat); + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + + if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + if (dev->has_scaler_out) { + if (dev->has_crop_out) + v4l2_rect_map_inside(crop, &r); + else + *crop = r; + if (dev->has_compose_out && !dev->has_crop_out) { + struct v4l2_rect min_r = { + 0, 0, + r.width / MAX_ZOOM, + factor * r.height / MAX_ZOOM + }; + struct v4l2_rect max_r = { + 0, 0, + r.width * MAX_ZOOM, + factor * r.height * MAX_ZOOM + }; + + v4l2_rect_set_min_size(compose, &min_r); + v4l2_rect_set_max_size(compose, &max_r); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + } else if (dev->has_compose_out) { + struct v4l2_rect min_r = { + 0, 0, + crop->width / MAX_ZOOM, + factor * crop->height / MAX_ZOOM + }; + struct v4l2_rect max_r = { + 0, 0, + crop->width * MAX_ZOOM, + factor * crop->height * MAX_ZOOM + }; + + v4l2_rect_set_min_size(compose, &min_r); + v4l2_rect_set_max_size(compose, &max_r); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + } + } else if (dev->has_compose_out && !dev->has_crop_out) { + v4l2_rect_set_size_to(crop, &r); + r.height *= factor; + v4l2_rect_set_size_to(compose, &r); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + } else if (!dev->has_compose_out) { + v4l2_rect_map_inside(crop, &r); + r.height /= factor; + v4l2_rect_set_size_to(compose, &r); + } else { + r.height *= factor; + v4l2_rect_set_max_size(compose, &r); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + crop->top *= factor; + crop->height *= factor; + v4l2_rect_set_size_to(crop, compose); + v4l2_rect_map_inside(crop, &r); + crop->top /= factor; + crop->height /= factor; + } + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + v4l2_rect_set_size_to(crop, &r); + r.height /= factor; + v4l2_rect_set_size_to(compose, &r); + } + + dev->fmt_out_rect.width = mp->width; + dev->fmt_out_rect.height = mp->height; + for (p = 0; p < mp->num_planes; p++) + dev->bytesperline_out[p] = mp->plane_fmt[p].bytesperline; + for (p = dev->fmt_out->buffers; p < dev->fmt_out->planes; p++) + dev->bytesperline_out[p] = + (dev->bytesperline_out[0] * dev->fmt_out->bit_depth[p]) / + dev->fmt_out->bit_depth[0]; + dev->field_out = mp->field; + if (vivid_is_svid_out(dev)) + dev->tv_field_out = mp->field; + +set_colorspace: + dev->colorspace_out = mp->colorspace; + dev->xfer_func_out = mp->xfer_func; + dev->ycbcr_enc_out = mp->ycbcr_enc; + dev->quantization_out = mp->quantization; + if (dev->loop_video) { + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + } + return 0; +} + +int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_g_fmt_vid_out(file, priv, f); +} + +int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_try_fmt_vid_out(file, priv, f); +} + +int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->multiplanar) + return -ENOTTY; + return vivid_s_fmt_vid_out(file, priv, f); +} + +int vidioc_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out); +} + +int vidioc_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out); +} + +int vidioc_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (dev->multiplanar) + return -ENOTTY; + return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out); +} + +int vivid_vid_out_g_selection(struct file *file, void *priv, + struct v4l2_selection *sel) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->has_crop_out && !dev->has_compose_out) + return -ENOTTY; + if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + sel->r.left = sel->r.top = 0; + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_out) + return -EINVAL; + sel->r = dev->crop_out; + break; + case V4L2_SEL_TGT_CROP_DEFAULT: + if (!dev->has_crop_out) + return -EINVAL; + sel->r = dev->fmt_out_rect; + break; + case V4L2_SEL_TGT_CROP_BOUNDS: + if (!dev->has_crop_out) + return -EINVAL; + sel->r = vivid_max_rect; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_out) + return -EINVAL; + sel->r = dev->compose_out; + break; + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + if (!dev->has_compose_out) + return -EINVAL; + sel->r = dev->sink_rect; + break; + default: + return -EINVAL; + } + return 0; +} + +int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rect *crop = &dev->crop_out; + struct v4l2_rect *compose = &dev->compose_out; + unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1; + int ret; + + if (!dev->has_crop_out && !dev->has_compose_out) + return -ENOTTY; + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_out) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + v4l2_rect_set_min_size(&s->r, &vivid_min_rect); + v4l2_rect_set_max_size(&s->r, &dev->fmt_out_rect); + if (dev->has_scaler_out) { + struct v4l2_rect max_rect = { + 0, 0, + dev->sink_rect.width * MAX_ZOOM, + (dev->sink_rect.height / factor) * MAX_ZOOM + }; + + v4l2_rect_set_max_size(&s->r, &max_rect); + if (dev->has_compose_out) { + struct v4l2_rect min_rect = { + 0, 0, + s->r.width / MAX_ZOOM, + (s->r.height * factor) / MAX_ZOOM + }; + struct v4l2_rect max_rect = { + 0, 0, + s->r.width * MAX_ZOOM, + (s->r.height * factor) * MAX_ZOOM + }; + + v4l2_rect_set_min_size(compose, &min_rect); + v4l2_rect_set_max_size(compose, &max_rect); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + } + } else if (dev->has_compose_out) { + s->r.top *= factor; + s->r.height *= factor; + v4l2_rect_set_max_size(&s->r, &dev->sink_rect); + v4l2_rect_set_size_to(compose, &s->r); + v4l2_rect_map_inside(compose, &dev->compose_bounds_out); + s->r.top /= factor; + s->r.height /= factor; + } else { + v4l2_rect_set_size_to(&s->r, &dev->sink_rect); + s->r.height /= factor; + } + v4l2_rect_map_inside(&s->r, &dev->fmt_out_rect); + *crop = s->r; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_out) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + v4l2_rect_set_min_size(&s->r, &vivid_min_rect); + v4l2_rect_set_max_size(&s->r, &dev->sink_rect); + v4l2_rect_map_inside(&s->r, &dev->compose_bounds_out); + s->r.top /= factor; + s->r.height /= factor; + if (dev->has_scaler_out) { + struct v4l2_rect fmt = dev->fmt_out_rect; + struct v4l2_rect max_rect = { + 0, 0, + s->r.width * MAX_ZOOM, + s->r.height * MAX_ZOOM + }; + struct v4l2_rect min_rect = { + 0, 0, + s->r.width / MAX_ZOOM, + s->r.height / MAX_ZOOM + }; + + v4l2_rect_set_min_size(&fmt, &min_rect); + if (!dev->has_crop_out) + v4l2_rect_set_max_size(&fmt, &max_rect); + if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + if (dev->has_crop_out) { + v4l2_rect_set_min_size(crop, &min_rect); + v4l2_rect_set_max_size(crop, &max_rect); + } + dev->fmt_out_rect = fmt; + } else if (dev->has_crop_out) { + struct v4l2_rect fmt = dev->fmt_out_rect; + + v4l2_rect_set_min_size(&fmt, &s->r); + if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + dev->fmt_out_rect = fmt; + v4l2_rect_set_size_to(crop, &s->r); + v4l2_rect_map_inside(crop, &dev->fmt_out_rect); + } else { + if (!v4l2_rect_same_size(&s->r, &dev->fmt_out_rect) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + v4l2_rect_set_size_to(&dev->fmt_out_rect, &s->r); + v4l2_rect_set_size_to(crop, &s->r); + crop->height /= factor; + v4l2_rect_map_inside(crop, &dev->fmt_out_rect); + } + s->r.top *= factor; + s->r.height *= factor; + if (dev->bitmap_out && (compose->width != s->r.width || + compose->height != s->r.height)) { + vfree(dev->bitmap_out); + dev->bitmap_out = NULL; + } + *compose = s->r; + break; + default: + return -EINVAL; + } + + return 0; +} + +int vivid_vid_out_g_pixelaspect(struct file *file, void *priv, + int type, struct v4l2_fract *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + switch (vivid_get_pixel_aspect(dev)) { + case TPG_PIXEL_ASPECT_NTSC: + f->numerator = 11; + f->denominator = 10; + break; + case TPG_PIXEL_ASPECT_PAL: + f->numerator = 54; + f->denominator = 59; + break; + default: + break; + } + return 0; +} + +int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + unsigned clipcount = win->clipcount; + + if (!dev->has_fb) + return -EINVAL; + win->w.top = dev->overlay_out_top; + win->w.left = dev->overlay_out_left; + win->w.width = compose->width; + win->w.height = compose->height; + win->clipcount = dev->clipcount_out; + win->field = V4L2_FIELD_ANY; + win->chromakey = dev->chromakey_out; + win->global_alpha = dev->global_alpha_out; + if (clipcount > dev->clipcount_out) + clipcount = dev->clipcount_out; + if (dev->bitmap_out == NULL) + win->bitmap = NULL; + else if (win->bitmap) { + if (copy_to_user(win->bitmap, dev->bitmap_out, + ((dev->compose_out.width + 7) / 8) * dev->compose_out.height)) + return -EFAULT; + } + if (clipcount && win->clips) + memcpy(win->clips, dev->clips_out, + clipcount * sizeof(dev->clips_out[0])); + return 0; +} + +int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + int i, j; + + if (!dev->has_fb) + return -EINVAL; + win->w.left = clamp_t(int, win->w.left, + -dev->display_width, dev->display_width); + win->w.top = clamp_t(int, win->w.top, + -dev->display_height, dev->display_height); + win->w.width = compose->width; + win->w.height = compose->height; + /* + * It makes no sense for an OSD to overlay only top or bottom fields, + * so always set this to ANY. + */ + win->field = V4L2_FIELD_ANY; + if (win->clipcount && !win->clips) + win->clipcount = 0; + if (win->clipcount > MAX_CLIPS) + win->clipcount = MAX_CLIPS; + if (win->clipcount) { + memcpy(dev->try_clips_out, win->clips, + win->clipcount * sizeof(dev->clips_out[0])); + for (i = 0; i < win->clipcount; i++) { + struct v4l2_rect *r = &dev->try_clips_out[i].c; + + r->top = clamp_t(s32, r->top, 0, dev->display_height - 1); + r->height = clamp_t(s32, r->height, 1, dev->display_height - r->top); + r->left = clamp_t(u32, r->left, 0, dev->display_width - 1); + r->width = clamp_t(u32, r->width, 1, dev->display_width - r->left); + } + /* + * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small + * number and it's typically a one-time deal. + */ + for (i = 0; i < win->clipcount - 1; i++) { + struct v4l2_rect *r1 = &dev->try_clips_out[i].c; + + for (j = i + 1; j < win->clipcount; j++) { + struct v4l2_rect *r2 = &dev->try_clips_out[j].c; + + if (v4l2_rect_overlap(r1, r2)) + return -EINVAL; + } + } + memcpy(win->clips, dev->try_clips_out, + win->clipcount * sizeof(dev->clips_out[0])); + } + return 0; +} + +int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f); + unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height; + unsigned clips_size = win->clipcount * sizeof(dev->clips_out[0]); + void *new_bitmap = NULL; + + if (ret) + return ret; + + if (win->bitmap) { + new_bitmap = vzalloc(bitmap_size); + + if (!new_bitmap) + return -ENOMEM; + if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) { + vfree(new_bitmap); + return -EFAULT; + } + } + + dev->overlay_out_top = win->w.top; + dev->overlay_out_left = win->w.left; + vfree(dev->bitmap_out); + dev->bitmap_out = new_bitmap; + dev->clipcount_out = win->clipcount; + if (dev->clipcount_out) + memcpy(dev->clips_out, dev->try_clips_out, clips_size); + dev->chromakey_out = win->chromakey; + dev->global_alpha_out = win->global_alpha; + return ret; +} + +int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (i && !dev->fmt_out->can_do_overlay) { + dprintk(dev, 1, "unsupported output format for output overlay\n"); + return -EINVAL; + } + + dev->overlay_out_enabled = i; + return 0; +} + +int vivid_vid_out_g_fbuf(struct file *file, void *fh, + struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + + a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | + V4L2_FBUF_CAP_BITMAP_CLIPPING | + V4L2_FBUF_CAP_LIST_CLIPPING | + V4L2_FBUF_CAP_CHROMAKEY | + V4L2_FBUF_CAP_SRC_CHROMAKEY | + V4L2_FBUF_CAP_GLOBAL_ALPHA | + V4L2_FBUF_CAP_LOCAL_ALPHA | + V4L2_FBUF_CAP_LOCAL_INV_ALPHA; + a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags; + a->base = (void *)dev->video_pbase; + a->fmt.width = dev->display_width; + a->fmt.height = dev->display_height; + if (dev->fb_defined.green.length == 5) + a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555; + else + a->fmt.pixelformat = V4L2_PIX_FMT_RGB565; + a->fmt.bytesperline = dev->display_byte_stride; + a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline; + a->fmt.field = V4L2_FIELD_NONE; + a->fmt.colorspace = V4L2_COLORSPACE_SRGB; + a->fmt.priv = 0; + return 0; +} + +int vivid_vid_out_s_fbuf(struct file *file, void *fh, + const struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY | + V4L2_FBUF_FLAG_SRC_CHROMAKEY; + const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA | + V4L2_FBUF_FLAG_LOCAL_ALPHA | + V4L2_FBUF_FLAG_LOCAL_INV_ALPHA; + + + if ((a->flags & chroma_flags) == chroma_flags) + return -EINVAL; + switch (a->flags & alpha_flags) { + case 0: + case V4L2_FBUF_FLAG_GLOBAL_ALPHA: + case V4L2_FBUF_FLAG_LOCAL_ALPHA: + case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA: + break; + default: + return -EINVAL; + } + dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags); + dev->fbuf_out_flags |= a->flags & (chroma_flags | alpha_flags); + return 0; +} + +static const struct v4l2_audioout vivid_audio_outputs[] = { + { 0, "Line-Out 1" }, + { 1, "Line-Out 2" }, +}; + +int vidioc_enum_output(struct file *file, void *priv, + struct v4l2_output *out) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (out->index >= dev->num_outputs) + return -EINVAL; + + out->type = V4L2_OUTPUT_TYPE_ANALOG; + switch (dev->output_type[out->index]) { + case SVID: + snprintf(out->name, sizeof(out->name), "S-Video %u", + dev->output_name_counter[out->index]); + out->std = V4L2_STD_ALL; + if (dev->has_audio_outputs) + out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1; + out->capabilities = V4L2_OUT_CAP_STD; + break; + case HDMI: + snprintf(out->name, sizeof(out->name), "HDMI %u", + dev->output_name_counter[out->index]); + out->capabilities = V4L2_OUT_CAP_DV_TIMINGS; + break; + } + return 0; +} + +int vidioc_g_output(struct file *file, void *priv, unsigned *o) +{ + struct vivid_dev *dev = video_drvdata(file); + + *o = dev->output; + return 0; +} + +int vidioc_s_output(struct file *file, void *priv, unsigned o) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (o >= dev->num_outputs) + return -EINVAL; + + if (o == dev->output) + return 0; + + if (vb2_is_busy(&dev->vb_vid_out_q) || + vb2_is_busy(&dev->vb_vbi_out_q) || + vb2_is_busy(&dev->vb_meta_out_q)) + return -EBUSY; + + dev->output = o; + dev->tv_audio_output = 0; + if (dev->output_type[o] == SVID) + dev->vid_out_dev.tvnorms = V4L2_STD_ALL; + else + dev->vid_out_dev.tvnorms = 0; + + dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms; + dev->meta_out_dev.tvnorms = dev->vid_out_dev.tvnorms; + vivid_update_format_out(dev); + + v4l2_ctrl_activate(dev->ctrl_display_present, vivid_is_hdmi_out(dev)); + if (vivid_is_hdmi_out(dev)) + v4l2_ctrl_s_ctrl(dev->ctrl_display_present, + dev->display_present[dev->output]); + + return 0; +} + +int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout) +{ + if (vout->index >= ARRAY_SIZE(vivid_audio_outputs)) + return -EINVAL; + *vout = vivid_audio_outputs[vout->index]; + return 0; +} + +int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -EINVAL; + *vout = vivid_audio_outputs[dev->tv_audio_output]; + return 0; +} + +int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -EINVAL; + if (vout->index >= ARRAY_SIZE(vivid_audio_outputs)) + return -EINVAL; + dev->tv_audio_output = vout->index; + return 0; +} + +int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -ENODATA; + if (dev->std_out == id) + return 0; + if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q)) + return -EBUSY; + dev->std_out = id; + vivid_update_format_out(dev); + return 0; +} + +static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings) +{ + struct v4l2_bt_timings *bt = &timings->bt; + + if ((bt->standards & (V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF)) && + v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, NULL, NULL)) + return true; + + return false; +} + +int vivid_vid_out_s_dv_timings(struct file *file, void *_fh, + struct v4l2_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + if (!vivid_is_hdmi_out(dev)) + return -ENODATA; + if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap, + 0, NULL, NULL) && + !valid_cvt_gtf_timings(timings)) + return -EINVAL; + if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0, true)) + return 0; + if (vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + dev->dv_timings_out = *timings; + vivid_update_format_out(dev); + return 0; +} + +int vivid_vid_out_g_parm(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (parm->type != (dev->multiplanar ? + V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : + V4L2_BUF_TYPE_VIDEO_OUTPUT)) + return -EINVAL; + + parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.output.timeperframe = dev->timeperframe_vid_out; + parm->parm.output.writebuffers = 1; + + return 0; +} + +int vidioc_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_SOURCE_CHANGE: + if (fh->vdev->vfl_dir == VFL_DIR_RX) + return v4l2_src_change_event_subscribe(fh, sub); + break; + default: + return v4l2_ctrl_subscribe_event(fh, sub); + } + return -EINVAL; +} diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.h b/drivers/media/test-drivers/vivid/vivid-vid-out.h new file mode 100644 index 000000000..8d56314f4 --- /dev/null +++ b/drivers/media/test-drivers/vivid/vivid-vid-out.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-vid-out.h - video output support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _VIVID_VID_OUT_H_ +#define _VIVID_VID_OUT_H_ + +extern const struct vb2_ops vivid_vid_out_qops; + +void vivid_update_format_out(struct vivid_dev *dev); + +int vivid_g_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vivid_try_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vivid_s_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_g_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f); +int vivid_vid_out_g_selection(struct file *file, void *priv, struct v4l2_selection *sel); +int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s); +int vivid_vid_out_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f); +int vidioc_enum_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_fmtdesc *f); +int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv, struct v4l2_format *f); +int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i); +int vivid_vid_out_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *a); +int vivid_vid_out_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *a); +int vidioc_enum_output(struct file *file, void *priv, struct v4l2_output *out); +int vidioc_g_output(struct file *file, void *priv, unsigned *i); +int vidioc_s_output(struct file *file, void *priv, unsigned i); +int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout); +int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout); +int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout); +int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id); +int vivid_vid_out_s_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings); +int vivid_vid_out_g_parm(struct file *file, void *priv, struct v4l2_streamparm *parm); + +#endif |