diff options
Diffstat (limited to 'drivers/media/pci/cx88/cx88-blackbird.c')
| -rw-r--r-- | drivers/media/pci/cx88/cx88-blackbird.c | 1253 |
1 files changed, 1253 insertions, 0 deletions
diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c new file mode 100644 index 000000000..c1b41a928 --- /dev/null +++ b/drivers/media/pci/cx88/cx88-blackbird.c @@ -0,0 +1,1253 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Support for a cx23416 mpeg encoder via cx2388x host port. + * "blackbird" reference design. + * + * (c) 2004 Jelle Foks <jelle@foks.us> + * (c) 2004 Gerd Knorr <kraxel@bytesex.org> + * + * (c) 2005-2006 Mauro Carvalho Chehab <mchehab@kernel.org> + * - video_ioctl2 conversion + * + * Includes parts from the ivtv driver <http://sourceforge.net/projects/ivtv/> + */ + +#include "cx88.h" + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/fs.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firmware.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/drv-intf/cx2341x.h> + +MODULE_DESCRIPTION("driver for cx2388x/cx23416 based mpeg encoder cards"); +MODULE_AUTHOR("Jelle Foks <jelle@foks.us>, Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); +MODULE_LICENSE("GPL v2"); +MODULE_VERSION(CX88_VERSION); + +static unsigned int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "enable debug messages [blackbird]"); + +#define dprintk(level, fmt, arg...) do { \ + if (debug + 1 > level) \ + printk(KERN_DEBUG pr_fmt("%s: blackbird:" fmt), \ + __func__, ##arg); \ +} while (0) + +/* ------------------------------------------------------------------ */ + +#define BLACKBIRD_FIRM_IMAGE_SIZE 376836 + +/* defines below are from ivtv-driver.h */ + +#define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF + +/* Firmware API commands */ +#define IVTV_API_STD_TIMEOUT 500 + +enum blackbird_capture_type { + BLACKBIRD_MPEG_CAPTURE, + BLACKBIRD_RAW_CAPTURE, + BLACKBIRD_RAW_PASSTHRU_CAPTURE +}; + +enum blackbird_capture_bits { + BLACKBIRD_RAW_BITS_NONE = 0x00, + BLACKBIRD_RAW_BITS_YUV_CAPTURE = 0x01, + BLACKBIRD_RAW_BITS_PCM_CAPTURE = 0x02, + BLACKBIRD_RAW_BITS_VBI_CAPTURE = 0x04, + BLACKBIRD_RAW_BITS_PASSTHRU_CAPTURE = 0x08, + BLACKBIRD_RAW_BITS_TO_HOST_CAPTURE = 0x10 +}; + +enum blackbird_capture_end { + BLACKBIRD_END_AT_GOP, /* stop at the end of gop, generate irq */ + BLACKBIRD_END_NOW, /* stop immediately, no irq */ +}; + +enum blackbird_framerate { + BLACKBIRD_FRAMERATE_NTSC_30, /* NTSC: 30fps */ + BLACKBIRD_FRAMERATE_PAL_25 /* PAL: 25fps */ +}; + +enum blackbird_stream_port { + BLACKBIRD_OUTPUT_PORT_MEMORY, + BLACKBIRD_OUTPUT_PORT_STREAMING, + BLACKBIRD_OUTPUT_PORT_SERIAL +}; + +enum blackbird_data_xfer_status { + BLACKBIRD_MORE_BUFFERS_FOLLOW, + BLACKBIRD_LAST_BUFFER, +}; + +enum blackbird_picture_mask { + BLACKBIRD_PICTURE_MASK_NONE, + BLACKBIRD_PICTURE_MASK_I_FRAMES, + BLACKBIRD_PICTURE_MASK_I_P_FRAMES = 0x3, + BLACKBIRD_PICTURE_MASK_ALL_FRAMES = 0x7, +}; + +enum blackbird_vbi_mode_bits { + BLACKBIRD_VBI_BITS_SLICED, + BLACKBIRD_VBI_BITS_RAW, +}; + +enum blackbird_vbi_insertion_bits { + BLACKBIRD_VBI_BITS_INSERT_IN_XTENSION_USR_DATA, + BLACKBIRD_VBI_BITS_INSERT_IN_PRIVATE_PACKETS = 0x1 << 1, + BLACKBIRD_VBI_BITS_SEPARATE_STREAM = 0x2 << 1, + BLACKBIRD_VBI_BITS_SEPARATE_STREAM_USR_DATA = 0x4 << 1, + BLACKBIRD_VBI_BITS_SEPARATE_STREAM_PRV_DATA = 0x5 << 1, +}; + +enum blackbird_dma_unit { + BLACKBIRD_DMA_BYTES, + BLACKBIRD_DMA_FRAMES, +}; + +enum blackbird_dma_transfer_status_bits { + BLACKBIRD_DMA_TRANSFER_BITS_DONE = 0x01, + BLACKBIRD_DMA_TRANSFER_BITS_ERROR = 0x04, + BLACKBIRD_DMA_TRANSFER_BITS_LL_ERROR = 0x10, +}; + +enum blackbird_pause { + BLACKBIRD_PAUSE_ENCODING, + BLACKBIRD_RESUME_ENCODING, +}; + +enum blackbird_copyright { + BLACKBIRD_COPYRIGHT_OFF, + BLACKBIRD_COPYRIGHT_ON, +}; + +enum blackbird_notification_type { + BLACKBIRD_NOTIFICATION_REFRESH, +}; + +enum blackbird_notification_status { + BLACKBIRD_NOTIFICATION_OFF, + BLACKBIRD_NOTIFICATION_ON, +}; + +enum blackbird_notification_mailbox { + BLACKBIRD_NOTIFICATION_NO_MAILBOX = -1, +}; + +enum blackbird_field1_lines { + BLACKBIRD_FIELD1_SAA7114 = 0x00EF, /* 239 */ + BLACKBIRD_FIELD1_SAA7115 = 0x00F0, /* 240 */ + BLACKBIRD_FIELD1_MICRONAS = 0x0105, /* 261 */ +}; + +enum blackbird_field2_lines { + BLACKBIRD_FIELD2_SAA7114 = 0x00EF, /* 239 */ + BLACKBIRD_FIELD2_SAA7115 = 0x00F0, /* 240 */ + BLACKBIRD_FIELD2_MICRONAS = 0x0106, /* 262 */ +}; + +enum blackbird_custom_data_type { + BLACKBIRD_CUSTOM_EXTENSION_USR_DATA, + BLACKBIRD_CUSTOM_PRIVATE_PACKET, +}; + +enum blackbird_mute { + BLACKBIRD_UNMUTE, + BLACKBIRD_MUTE, +}; + +enum blackbird_mute_video_mask { + BLACKBIRD_MUTE_VIDEO_V_MASK = 0x0000FF00, + BLACKBIRD_MUTE_VIDEO_U_MASK = 0x00FF0000, + BLACKBIRD_MUTE_VIDEO_Y_MASK = 0xFF000000, +}; + +enum blackbird_mute_video_shift { + BLACKBIRD_MUTE_VIDEO_V_SHIFT = 8, + BLACKBIRD_MUTE_VIDEO_U_SHIFT = 16, + BLACKBIRD_MUTE_VIDEO_Y_SHIFT = 24, +}; + +/* Registers */ +#define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8 /*| IVTV_REG_OFFSET*/) +#define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC /*| IVTV_REG_OFFSET*/) +#define IVTV_REG_SPU (0x9050 /*| IVTV_REG_OFFSET*/) +#define IVTV_REG_HW_BLOCKS (0x9054 /*| IVTV_REG_OFFSET*/) +#define IVTV_REG_VPU (0x9058 /*| IVTV_REG_OFFSET*/) +#define IVTV_REG_APU (0xA064 /*| IVTV_REG_OFFSET*/) + +/* ------------------------------------------------------------------ */ + +static void host_setup(struct cx88_core *core) +{ + /* toggle reset of the host */ + cx_write(MO_GPHST_SOFT_RST, 1); + udelay(100); + cx_write(MO_GPHST_SOFT_RST, 0); + udelay(100); + + /* host port setup */ + cx_write(MO_GPHST_WSC, 0x44444444U); + cx_write(MO_GPHST_XFR, 0); + cx_write(MO_GPHST_WDTH, 15); + cx_write(MO_GPHST_HDSHK, 0); + cx_write(MO_GPHST_MUX16, 0x44448888U); + cx_write(MO_GPHST_MODE, 0); +} + +/* ------------------------------------------------------------------ */ + +#define P1_MDATA0 0x390000 +#define P1_MDATA1 0x390001 +#define P1_MDATA2 0x390002 +#define P1_MDATA3 0x390003 +#define P1_MADDR2 0x390004 +#define P1_MADDR1 0x390005 +#define P1_MADDR0 0x390006 +#define P1_RDATA0 0x390008 +#define P1_RDATA1 0x390009 +#define P1_RDATA2 0x39000A +#define P1_RDATA3 0x39000B +#define P1_RADDR0 0x39000C +#define P1_RADDR1 0x39000D +#define P1_RRDWR 0x39000E + +static int wait_ready_gpio0_bit1(struct cx88_core *core, u32 state) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(1); + u32 gpio0, need; + + need = state ? 2 : 0; + for (;;) { + gpio0 = cx_read(MO_GP0_IO) & 2; + if (need == gpio0) + return 0; + if (time_after(jiffies, timeout)) + return -1; + udelay(1); + } +} + +static int memory_write(struct cx88_core *core, u32 address, u32 value) +{ + /* Warning: address is dword address (4 bytes) */ + cx_writeb(P1_MDATA0, (unsigned int)value); + cx_writeb(P1_MDATA1, (unsigned int)(value >> 8)); + cx_writeb(P1_MDATA2, (unsigned int)(value >> 16)); + cx_writeb(P1_MDATA3, (unsigned int)(value >> 24)); + cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) | 0x40); + cx_writeb(P1_MADDR1, (unsigned int)(address >> 8)); + cx_writeb(P1_MADDR0, (unsigned int)address); + cx_read(P1_MDATA0); + cx_read(P1_MADDR0); + + return wait_ready_gpio0_bit1(core, 1); +} + +static int memory_read(struct cx88_core *core, u32 address, u32 *value) +{ + int retval; + u32 val; + + /* Warning: address is dword address (4 bytes) */ + cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) & ~0xC0); + cx_writeb(P1_MADDR1, (unsigned int)(address >> 8)); + cx_writeb(P1_MADDR0, (unsigned int)address); + cx_read(P1_MADDR0); + + retval = wait_ready_gpio0_bit1(core, 1); + + cx_writeb(P1_MDATA3, 0); + val = (unsigned char)cx_read(P1_MDATA3) << 24; + cx_writeb(P1_MDATA2, 0); + val |= (unsigned char)cx_read(P1_MDATA2) << 16; + cx_writeb(P1_MDATA1, 0); + val |= (unsigned char)cx_read(P1_MDATA1) << 8; + cx_writeb(P1_MDATA0, 0); + val |= (unsigned char)cx_read(P1_MDATA0); + + *value = val; + return retval; +} + +static int register_write(struct cx88_core *core, u32 address, u32 value) +{ + cx_writeb(P1_RDATA0, (unsigned int)value); + cx_writeb(P1_RDATA1, (unsigned int)(value >> 8)); + cx_writeb(P1_RDATA2, (unsigned int)(value >> 16)); + cx_writeb(P1_RDATA3, (unsigned int)(value >> 24)); + cx_writeb(P1_RADDR0, (unsigned int)address); + cx_writeb(P1_RADDR1, (unsigned int)(address >> 8)); + cx_writeb(P1_RRDWR, 1); + cx_read(P1_RDATA0); + cx_read(P1_RADDR0); + + return wait_ready_gpio0_bit1(core, 1); +} + +static int register_read(struct cx88_core *core, u32 address, u32 *value) +{ + int retval; + u32 val; + + cx_writeb(P1_RADDR0, (unsigned int)address); + cx_writeb(P1_RADDR1, (unsigned int)(address >> 8)); + cx_writeb(P1_RRDWR, 0); + cx_read(P1_RADDR0); + + retval = wait_ready_gpio0_bit1(core, 1); + val = (unsigned char)cx_read(P1_RDATA0); + val |= (unsigned char)cx_read(P1_RDATA1) << 8; + val |= (unsigned char)cx_read(P1_RDATA2) << 16; + val |= (unsigned char)cx_read(P1_RDATA3) << 24; + + *value = val; + return retval; +} + +/* ------------------------------------------------------------------ */ + +static int blackbird_mbox_func(void *priv, u32 command, int in, + int out, u32 data[CX2341X_MBOX_MAX_DATA]) +{ + struct cx8802_dev *dev = priv; + unsigned long timeout; + u32 value, flag, retval; + int i; + + dprintk(1, "%s: 0x%X\n", __func__, command); + + /* + * this may not be 100% safe if we can't read any memory location + * without side effects + */ + memory_read(dev->core, dev->mailbox - 4, &value); + if (value != 0x12345678) { + dprintk(0, + "Firmware and/or mailbox pointer not initialized or corrupted\n"); + return -EIO; + } + + memory_read(dev->core, dev->mailbox, &flag); + if (flag) { + dprintk(0, "ERROR: Mailbox appears to be in use (%x)\n", flag); + return -EIO; + } + + flag |= 1; /* tell 'em we're working on it */ + memory_write(dev->core, dev->mailbox, flag); + + /* write command + args + fill remaining with zeros */ + memory_write(dev->core, dev->mailbox + 1, command); /* command code */ + /* timeout */ + memory_write(dev->core, dev->mailbox + 3, IVTV_API_STD_TIMEOUT); + for (i = 0; i < in; i++) { + memory_write(dev->core, dev->mailbox + 4 + i, data[i]); + dprintk(1, "API Input %d = %d\n", i, data[i]); + } + for (; i < CX2341X_MBOX_MAX_DATA; i++) + memory_write(dev->core, dev->mailbox + 4 + i, 0); + + flag |= 3; /* tell 'em we're done writing */ + memory_write(dev->core, dev->mailbox, flag); + + /* wait for firmware to handle the API command */ + timeout = jiffies + msecs_to_jiffies(1000); + for (;;) { + memory_read(dev->core, dev->mailbox, &flag); + if (0 != (flag & 4)) + break; + if (time_after(jiffies, timeout)) { + dprintk(0, "ERROR: API Mailbox timeout %x\n", command); + return -EIO; + } + udelay(10); + } + + /* read output values */ + for (i = 0; i < out; i++) { + memory_read(dev->core, dev->mailbox + 4 + i, data + i); + dprintk(1, "API Output %d = %d\n", i, data[i]); + } + + memory_read(dev->core, dev->mailbox + 2, &retval); + dprintk(1, "API result = %d\n", retval); + + flag = 0; + memory_write(dev->core, dev->mailbox, flag); + return retval; +} + +/* ------------------------------------------------------------------ */ + +/* + * We don't need to call the API often, so using just one mailbox + * will probably suffice + */ +static int blackbird_api_cmd(struct cx8802_dev *dev, u32 command, + u32 inputcnt, u32 outputcnt, ...) +{ + u32 data[CX2341X_MBOX_MAX_DATA]; + va_list vargs; + int i, err; + + va_start(vargs, outputcnt); + + for (i = 0; i < inputcnt; i++) + data[i] = va_arg(vargs, int); + + err = blackbird_mbox_func(dev, command, inputcnt, outputcnt, data); + for (i = 0; i < outputcnt; i++) { + int *vptr = va_arg(vargs, int *); + *vptr = data[i]; + } + va_end(vargs); + return err; +} + +static int blackbird_find_mailbox(struct cx8802_dev *dev) +{ + u32 signature[4] = {0x12345678, 0x34567812, 0x56781234, 0x78123456}; + int signaturecnt = 0; + u32 value; + int i; + + for (i = 0; i < BLACKBIRD_FIRM_IMAGE_SIZE; i++) { + memory_read(dev->core, i, &value); + if (value == signature[signaturecnt]) + signaturecnt++; + else + signaturecnt = 0; + if (signaturecnt == 4) { + dprintk(1, "Mailbox signature found\n"); + return i + 1; + } + } + dprintk(0, "Mailbox signature values not found!\n"); + return -EIO; +} + +static int blackbird_load_firmware(struct cx8802_dev *dev) +{ + static const unsigned char magic[8] = { + 0xa7, 0x0d, 0x00, 0x00, 0x66, 0xbb, 0x55, 0xaa + }; + const struct firmware *firmware; + int i, retval = 0; + u32 value = 0; + u32 checksum = 0; + __le32 *dataptr; + + retval = register_write(dev->core, IVTV_REG_VPU, 0xFFFFFFED); + retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, + IVTV_CMD_HW_BLOCKS_RST); + retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_REFRESH, + 0x80000640); + retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_PRECHARGE, + 0x1A); + usleep_range(10000, 20000); + retval |= register_write(dev->core, IVTV_REG_APU, 0); + + if (retval < 0) + dprintk(0, "Error with register_write\n"); + + retval = request_firmware(&firmware, CX2341X_FIRM_ENC_FILENAME, + &dev->pci->dev); + + if (retval != 0) { + pr_err("Hotplug firmware request failed (%s).\n", + CX2341X_FIRM_ENC_FILENAME); + pr_err("Please fix your hotplug setup, the board will not work without firmware loaded!\n"); + return -EIO; + } + + if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) { + pr_err("Firmware size mismatch (have %zd, expected %d)\n", + firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE); + release_firmware(firmware); + return -EINVAL; + } + + if (memcmp(firmware->data, magic, 8) != 0) { + pr_err("Firmware magic mismatch, wrong file?\n"); + release_firmware(firmware); + return -EINVAL; + } + + /* transfer to the chip */ + dprintk(1, "Loading firmware ...\n"); + dataptr = (__le32 *)firmware->data; + for (i = 0; i < (firmware->size >> 2); i++) { + value = le32_to_cpu(*dataptr); + checksum += ~value; + memory_write(dev->core, i, value); + dataptr++; + } + + /* read back to verify with the checksum */ + for (i--; i >= 0; i--) { + memory_read(dev->core, i, &value); + checksum -= ~value; + } + release_firmware(firmware); + if (checksum) { + pr_err("Firmware load might have failed (checksum mismatch).\n"); + return -EIO; + } + dprintk(0, "Firmware upload successful.\n"); + + retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, + IVTV_CMD_HW_BLOCKS_RST); + retval |= register_read(dev->core, IVTV_REG_SPU, &value); + retval |= register_write(dev->core, IVTV_REG_SPU, value & 0xFFFFFFFE); + usleep_range(10000, 20000); + + retval |= register_read(dev->core, IVTV_REG_VPU, &value); + retval |= register_write(dev->core, IVTV_REG_VPU, value & 0xFFFFFFE8); + + if (retval < 0) + dprintk(0, "Error with register_write\n"); + return 0; +} + +/* + * Settings used by the windows tv app for PVR2000: + * ================================================================================================================= + * Profile | Codec | Resolution | CBR/VBR | Video Qlty | V. Bitrate | Frmrate | Audio Codec | A. Bitrate | A. Mode + * ----------------------------------------------------------------------------------------------------------------- + * MPEG-1 | MPEG1 | 352x288PAL | (CBR) | 1000:Optimal | 2000 Kbps | 25fps | MPG1 Layer2 | 224kbps | Stereo + * MPEG-2 | MPEG2 | 720x576PAL | VBR | 600 :Good | 4000 Kbps | 25fps | MPG1 Layer2 | 224kbps | Stereo + * VCD | MPEG1 | 352x288PAL | (CBR) | 1000:Optimal | 1150 Kbps | 25fps | MPG1 Layer2 | 224kbps | Stereo + * DVD | MPEG2 | 720x576PAL | VBR | 600 :Good | 6000 Kbps | 25fps | MPG1 Layer2 | 224kbps | Stereo + * DB* DVD | MPEG2 | 720x576PAL | CBR | 600 :Good | 6000 Kbps | 25fps | MPG1 Layer2 | 224kbps | Stereo + * ================================================================================================================= + * [*] DB: "DirectBurn" + */ + +static void blackbird_codec_settings(struct cx8802_dev *dev) +{ + struct cx88_core *core = dev->core; + + /* assign frame size */ + blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0, + core->height, core->width); + + dev->cxhdl.width = core->width; + dev->cxhdl.height = core->height; + cx2341x_handler_set_50hz(&dev->cxhdl, + dev->core->tvnorm & V4L2_STD_625_50); + cx2341x_handler_setup(&dev->cxhdl); +} + +static int blackbird_initialize_codec(struct cx8802_dev *dev) +{ + struct cx88_core *core = dev->core; + int version; + int retval; + + dprintk(1, "Initialize codec\n"); + retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); /* ping */ + if (retval < 0) { + /* ping was not successful, reset and upload firmware */ + cx_write(MO_SRST_IO, 0); /* SYS_RSTO=0 */ + cx_write(MO_SRST_IO, 1); /* SYS_RSTO=1 */ + retval = blackbird_load_firmware(dev); + if (retval < 0) + return retval; + + retval = blackbird_find_mailbox(dev); + if (retval < 0) + return -1; + + dev->mailbox = retval; + + /* ping */ + retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); + if (retval < 0) { + dprintk(0, "ERROR: Firmware ping failed!\n"); + return -1; + } + + retval = blackbird_api_cmd(dev, CX2341X_ENC_GET_VERSION, + 0, 1, &version); + if (retval < 0) { + dprintk(0, + "ERROR: Firmware get encoder version failed!\n"); + return -1; + } + dprintk(0, "Firmware version is 0x%08x\n", version); + } + + cx_write(MO_PINMUX_IO, 0x88); /* 656-8bit IO and enable MPEG parallel IO */ + cx_clear(MO_INPUT_FORMAT, 0x100); /* chroma subcarrier lock to normal? */ + cx_write(MO_VBOS_CONTROL, 0x84A00); /* no 656 mode, 8-bit pixels, disable VBI */ + cx_clear(MO_OUTPUT_FORMAT, 0x0008); /* Normal Y-limits to let the mpeg encoder sync */ + + blackbird_codec_settings(dev); + + blackbird_api_cmd(dev, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, 0, + BLACKBIRD_FIELD1_SAA7115, BLACKBIRD_FIELD2_SAA7115); + + blackbird_api_cmd(dev, CX2341X_ENC_SET_PLACEHOLDER, 12, 0, + BLACKBIRD_CUSTOM_EXTENSION_USR_DATA, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); + + return 0; +} + +static int blackbird_start_codec(struct cx8802_dev *dev) +{ + struct cx88_core *core = dev->core; + /* start capturing to the host interface */ + u32 reg; + + int i; + int lastchange = -1; + int lastval = 0; + + for (i = 0; (i < 10) && (i < (lastchange + 4)); i++) { + reg = cx_read(AUD_STATUS); + + dprintk(1, "AUD_STATUS:%dL: 0x%x\n", i, reg); + if ((reg & 0x0F) != lastval) { + lastval = reg & 0x0F; + lastchange = i; + } + msleep(100); + } + + /* unmute audio source */ + cx_clear(AUD_VOL_CTL, (1 << 6)); + + blackbird_api_cmd(dev, CX2341X_ENC_REFRESH_INPUT, 0, 0); + + /* initialize the video input */ + blackbird_api_cmd(dev, CX2341X_ENC_INITIALIZE_INPUT, 0, 0); + + cx2341x_handler_set_busy(&dev->cxhdl, 1); + + /* start capturing to the host interface */ + blackbird_api_cmd(dev, CX2341X_ENC_START_CAPTURE, 2, 0, + BLACKBIRD_MPEG_CAPTURE, BLACKBIRD_RAW_BITS_NONE); + + return 0; +} + +static int blackbird_stop_codec(struct cx8802_dev *dev) +{ + blackbird_api_cmd(dev, CX2341X_ENC_STOP_CAPTURE, 3, 0, + BLACKBIRD_END_NOW, + BLACKBIRD_MPEG_CAPTURE, + BLACKBIRD_RAW_BITS_NONE); + + cx2341x_handler_set_busy(&dev->cxhdl, 0); + + return 0; +} + +/* ------------------------------------------------------------------ */ + +static int queue_setup(struct vb2_queue *q, + unsigned int *num_buffers, unsigned int *num_planes, + unsigned int sizes[], struct device *alloc_devs[]) +{ + struct cx8802_dev *dev = q->drv_priv; + + *num_planes = 1; + dev->ts_packet_size = 188 * 4; + dev->ts_packet_count = 32; + sizes[0] = dev->ts_packet_size * dev->ts_packet_count; + return 0; +} + +static int buffer_prepare(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct cx8802_dev *dev = vb->vb2_queue->drv_priv; + struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb); + + return cx8802_buf_prepare(vb->vb2_queue, dev, buf); +} + +static void buffer_finish(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct cx8802_dev *dev = vb->vb2_queue->drv_priv; + struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb); + struct cx88_riscmem *risc = &buf->risc; + + if (risc->cpu) + dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu, + risc->dma); + memset(risc, 0, sizeof(*risc)); +} + +static void buffer_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct cx8802_dev *dev = vb->vb2_queue->drv_priv; + struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb); + + cx8802_buf_queue(dev, buf); +} + +static int start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct cx8802_dev *dev = q->drv_priv; + struct cx88_dmaqueue *dmaq = &dev->mpegq; + struct cx8802_driver *drv; + struct cx88_buffer *buf; + unsigned long flags; + int err; + + /* Make sure we can acquire the hardware */ + drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD); + if (!drv) { + dprintk(1, "%s: blackbird driver is not loaded\n", __func__); + err = -ENODEV; + goto fail; + } + + err = drv->request_acquire(drv); + if (err != 0) { + dprintk(1, "%s: Unable to acquire hardware, %d\n", __func__, + err); + goto fail; + } + + if (blackbird_initialize_codec(dev) < 0) { + drv->request_release(drv); + err = -EINVAL; + goto fail; + } + + err = blackbird_start_codec(dev); + if (err == 0) { + buf = list_entry(dmaq->active.next, struct cx88_buffer, list); + cx8802_start_dma(dev, dmaq, buf); + return 0; + } + +fail: + spin_lock_irqsave(&dev->slock, flags); + while (!list_empty(&dmaq->active)) { + struct cx88_buffer *buf = list_entry(dmaq->active.next, + struct cx88_buffer, list); + + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); + } + spin_unlock_irqrestore(&dev->slock, flags); + return err; +} + +static void stop_streaming(struct vb2_queue *q) +{ + struct cx8802_dev *dev = q->drv_priv; + struct cx88_dmaqueue *dmaq = &dev->mpegq; + struct cx8802_driver *drv = NULL; + unsigned long flags; + + cx8802_cancel_buffers(dev); + blackbird_stop_codec(dev); + + /* Make sure we release the hardware */ + drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD); + WARN_ON(!drv); + if (drv) + drv->request_release(drv); + + spin_lock_irqsave(&dev->slock, flags); + while (!list_empty(&dmaq->active)) { + struct cx88_buffer *buf = list_entry(dmaq->active.next, + struct cx88_buffer, list); + + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } + spin_unlock_irqrestore(&dev->slock, flags); +} + +static const struct vb2_ops blackbird_qops = { + .queue_setup = queue_setup, + .buf_prepare = buffer_prepare, + .buf_finish = buffer_finish, + .buf_queue = buffer_queue, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, +}; + +/* ------------------------------------------------------------------ */ + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + strscpy(cap->driver, "cx88_blackbird", sizeof(cap->driver)); + return cx88_querycap(file, core, cap); +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + if (f->index != 0) + return -EINVAL; + + f->pixelformat = V4L2_PIX_FMT_MPEG; + return 0; +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; + f->fmt.pix.bytesperline = 0; + f->fmt.pix.sizeimage = dev->ts_packet_size * dev->ts_packet_count; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.width = core->width; + f->fmt.pix.height = core->height; + f->fmt.pix.field = core->field; + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + unsigned int maxw, maxh; + enum v4l2_field field; + + f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; + f->fmt.pix.bytesperline = 0; + f->fmt.pix.sizeimage = dev->ts_packet_size * dev->ts_packet_count; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + + maxw = norm_maxw(core->tvnorm); + maxh = norm_maxh(core->tvnorm); + + field = f->fmt.pix.field; + + switch (field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_INTERLACED: + case V4L2_FIELD_SEQ_BT: + case V4L2_FIELD_SEQ_TB: + break; + default: + field = (f->fmt.pix.height > maxh / 2) + ? V4L2_FIELD_INTERLACED + : V4L2_FIELD_BOTTOM; + break; + } + if (V4L2_FIELD_HAS_T_OR_B(field)) + maxh /= 2; + + v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2, + &f->fmt.pix.height, 32, maxh, 0, 0); + f->fmt.pix.field = field; + return 0; +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + if (vb2_is_busy(&dev->vb2_mpegq)) + return -EBUSY; + if (core->v4ldev && (vb2_is_busy(&core->v4ldev->vb2_vidq) || + vb2_is_busy(&core->v4ldev->vb2_vbiq))) + return -EBUSY; + vidioc_try_fmt_vid_cap(file, priv, f); + core->width = f->fmt.pix.width; + core->height = f->fmt.pix.height; + core->field = f->fmt.pix.field; + cx88_set_scale(core, f->fmt.pix.width, f->fmt.pix.height, + f->fmt.pix.field); + blackbird_api_cmd(dev, CX2341X_ENC_SET_FRAME_SIZE, 2, 0, + f->fmt.pix.height, f->fmt.pix.width); + return 0; +} + +static int vidioc_s_frequency(struct file *file, void *priv, + const struct v4l2_frequency *f) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + bool streaming; + + if (unlikely(core->board.tuner_type == UNSET)) + return -EINVAL; + if (unlikely(f->tuner != 0)) + return -EINVAL; + streaming = vb2_start_streaming_called(&dev->vb2_mpegq); + if (streaming) + blackbird_stop_codec(dev); + + cx88_set_freq(core, f); + blackbird_initialize_codec(dev); + cx88_set_scale(core, core->width, core->height, core->field); + if (streaming) + blackbird_start_codec(dev); + return 0; +} + +static int vidioc_log_status(struct file *file, void *priv) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + char name[32 + 2]; + + snprintf(name, sizeof(name), "%s/2", core->name); + call_all(core, core, log_status); + v4l2_ctrl_handler_log_status(&dev->cxhdl.hdl, name); + return 0; +} + +static int vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *i) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + return cx88_enum_input(core, i); +} + +static int vidioc_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + if (unlikely(core->board.tuner_type == UNSET)) + return -EINVAL; + if (unlikely(f->tuner != 0)) + return -EINVAL; + + f->frequency = core->freq; + call_all(core, tuner, g_frequency, f); + + return 0; +} + +static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + *i = core->input; + return 0; +} + +static int vidioc_s_input(struct file *file, void *priv, unsigned int i) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + if (i >= 4) + return -EINVAL; + if (!INPUT(i).type) + return -EINVAL; + + cx88_newstation(core); + cx88_video_mux(core, i); + return 0; +} + +static int vidioc_g_tuner(struct file *file, void *priv, + struct v4l2_tuner *t) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + u32 reg; + + if (unlikely(core->board.tuner_type == UNSET)) + return -EINVAL; + if (t->index != 0) + return -EINVAL; + + strscpy(t->name, "Television", sizeof(t->name)); + t->capability = V4L2_TUNER_CAP_NORM; + t->rangehigh = 0xffffffffUL; + call_all(core, tuner, g_tuner, t); + + cx88_get_stereo(core, t); + reg = cx_read(MO_DEVICE_STATUS); + t->signal = (reg & (1 << 5)) ? 0xffff : 0x0000; + return 0; +} + +static int vidioc_s_tuner(struct file *file, void *priv, + const struct v4l2_tuner *t) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + if (core->board.tuner_type == UNSET) + return -EINVAL; + if (t->index != 0) + return -EINVAL; + + cx88_set_stereo(core, t->audmode, 1); + return 0; +} + +static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorm) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + *tvnorm = core->tvnorm; + return 0; +} + +static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) +{ + struct cx8802_dev *dev = video_drvdata(file); + struct cx88_core *core = dev->core; + + return cx88_set_tvnorm(core, id); +} + +static const struct v4l2_file_operations mpeg_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +static const struct v4l2_ioctl_ops mpeg_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_reqbufs = vb2_ioctl_reqbufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_log_status = vidioc_log_status, + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_std = vidioc_g_std, + .vidioc_s_std = vidioc_s_std, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct video_device cx8802_mpeg_template = { + .name = "cx8802", + .fops = &mpeg_fops, + .ioctl_ops = &mpeg_ioctl_ops, + .tvnorms = CX88_NORMS, +}; + +/* ------------------------------------------------------------------ */ + +/* The CX8802 MPEG API will call this when we can use the hardware */ +static int cx8802_blackbird_advise_acquire(struct cx8802_driver *drv) +{ + struct cx88_core *core = drv->core; + int err = 0; + + switch (core->boardnr) { + case CX88_BOARD_HAUPPAUGE_HVR1300: + /* + * By default, core setup will leave the cx22702 out of reset, + * on the bus. + * We left the hardware on power up with the cx22702 active. + * We're being given access to re-arrange the GPIOs. + * Take the bus off the cx22702 and put the cx23416 on it. + */ + /* Toggle reset on cx22702 leaving i2c active */ + cx_set(MO_GP0_IO, 0x00000080); + udelay(1000); + cx_clear(MO_GP0_IO, 0x00000080); + udelay(50); + cx_set(MO_GP0_IO, 0x00000080); + udelay(1000); + /* tri-state the cx22702 pins */ + cx_set(MO_GP0_IO, 0x00000004); + udelay(1000); + break; + default: + err = -ENODEV; + } + return err; +} + +/* The CX8802 MPEG API will call this when we need to release the hardware */ +static int cx8802_blackbird_advise_release(struct cx8802_driver *drv) +{ + struct cx88_core *core = drv->core; + int err = 0; + + switch (core->boardnr) { + case CX88_BOARD_HAUPPAUGE_HVR1300: + /* Exit leaving the cx23416 on the bus */ + break; + default: + err = -ENODEV; + } + return err; +} + +static void blackbird_unregister_video(struct cx8802_dev *dev) +{ + video_unregister_device(&dev->mpeg_dev); +} + +static int blackbird_register_video(struct cx8802_dev *dev) +{ + int err; + + cx88_vdev_init(dev->core, dev->pci, &dev->mpeg_dev, + &cx8802_mpeg_template, "mpeg"); + dev->mpeg_dev.ctrl_handler = &dev->cxhdl.hdl; + video_set_drvdata(&dev->mpeg_dev, dev); + dev->mpeg_dev.queue = &dev->vb2_mpegq; + dev->mpeg_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | + V4L2_CAP_VIDEO_CAPTURE; + if (dev->core->board.tuner_type != UNSET) + dev->mpeg_dev.device_caps |= V4L2_CAP_TUNER; + err = video_register_device(&dev->mpeg_dev, VFL_TYPE_VIDEO, -1); + if (err < 0) { + pr_info("can't register mpeg device\n"); + return err; + } + pr_info("registered device %s [mpeg]\n", + video_device_node_name(&dev->mpeg_dev)); + return 0; +} + +/* ----------------------------------------------------------- */ + +static int cx8802_blackbird_probe(struct cx8802_driver *drv) +{ + struct cx88_core *core = drv->core; + struct cx8802_dev *dev = core->dvbdev; + struct vb2_queue *q; + int err; + + dprintk(1, "%s\n", __func__); + dprintk(1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n", + core->boardnr, + core->name, + core->pci_bus, + core->pci_slot); + + err = -ENODEV; + if (!(core->board.mpeg & CX88_MPEG_BLACKBIRD)) + goto fail_core; + + dev->cxhdl.port = CX2341X_PORT_STREAMING; + dev->cxhdl.width = core->width; + dev->cxhdl.height = core->height; + dev->cxhdl.func = blackbird_mbox_func; + dev->cxhdl.priv = dev; + err = cx2341x_handler_init(&dev->cxhdl, 36); + if (err) + goto fail_core; + v4l2_ctrl_add_handler(&dev->cxhdl.hdl, &core->video_hdl, NULL, false); + + /* blackbird stuff */ + pr_info("cx23416 based mpeg encoder (blackbird reference design)\n"); + host_setup(dev->core); + + blackbird_initialize_codec(dev); + + /* initial device configuration: needed ? */ +// init_controls(core); + cx88_set_tvnorm(core, core->tvnorm); + cx88_video_mux(core, 0); + cx2341x_handler_set_50hz(&dev->cxhdl, core->height == 576); + cx2341x_handler_setup(&dev->cxhdl); + + q = &dev->vb2_mpegq; + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; + q->gfp_flags = GFP_DMA32; + q->min_buffers_needed = 2; + q->drv_priv = dev; + q->buf_struct_size = sizeof(struct cx88_buffer); + q->ops = &blackbird_qops; + q->mem_ops = &vb2_dma_sg_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->lock = &core->lock; + q->dev = &dev->pci->dev; + + err = vb2_queue_init(q); + if (err < 0) + goto fail_core; + + blackbird_register_video(dev); + + return 0; + +fail_core: + return err; +} + +static int cx8802_blackbird_remove(struct cx8802_driver *drv) +{ + struct cx88_core *core = drv->core; + struct cx8802_dev *dev = core->dvbdev; + + /* blackbird */ + blackbird_unregister_video(drv->core->dvbdev); + v4l2_ctrl_handler_free(&dev->cxhdl.hdl); + + return 0; +} + +static struct cx8802_driver cx8802_blackbird_driver = { + .type_id = CX88_MPEG_BLACKBIRD, + .hw_access = CX8802_DRVCTL_SHARED, + .probe = cx8802_blackbird_probe, + .remove = cx8802_blackbird_remove, + .advise_acquire = cx8802_blackbird_advise_acquire, + .advise_release = cx8802_blackbird_advise_release, +}; + +static int __init blackbird_init(void) +{ + pr_info("cx2388x blackbird driver version %s loaded\n", + CX88_VERSION); + return cx8802_register_driver(&cx8802_blackbird_driver); +} + +static void __exit blackbird_fini(void) +{ + cx8802_unregister_driver(&cx8802_blackbird_driver); +} + +module_init(blackbird_init); +module_exit(blackbird_fini); |