diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:11:22 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:11:22 +0000 |
commit | b20732900e4636a467c0183a47f7396700f5f743 (patch) | |
tree | 42f079ff82e701ebcb76829974b4caca3e5b6798 /drivers/media/i2c/ov08x40.c | |
parent | Adding upstream version 6.8.12. (diff) | |
download | linux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz linux-b20732900e4636a467c0183a47f7396700f5f743.zip |
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/i2c/ov08x40.c')
-rw-r--r-- | drivers/media/i2c/ov08x40.c | 1307 |
1 files changed, 129 insertions, 1178 deletions
diff --git a/drivers/media/i2c/ov08x40.c b/drivers/media/i2c/ov08x40.c index abbb0b774d..48df077522 100644 --- a/drivers/media/i2c/ov08x40.c +++ b/drivers/media/i2c/ov08x40.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2022 Intel Corporation. +#include <asm-generic/unaligned.h> #include <linux/acpi.h> #include <linux/i2c.h> #include <linux/module.h> @@ -34,7 +35,7 @@ /* V_TIMING internal */ #define OV08X40_REG_VTS 0x380e -#define OV08X40_VTS_30FPS 0x1388 +#define OV08X40_VTS_30FPS 0x09c4 /* the VTS need to be half in normal mode */ #define OV08X40_VTS_BIN_30FPS 0x115c #define OV08X40_VTS_MAX 0x7fff @@ -44,8 +45,9 @@ /* Exposure control */ #define OV08X40_REG_EXPOSURE 0x3500 -#define OV08X40_EXPOSURE_MAX_MARGIN 31 -#define OV08X40_EXPOSURE_MIN 1 +#define OV08X40_EXPOSURE_MAX_MARGIN 8 +#define OV08X40_EXPOSURE_BIN_MAX_MARGIN 2 +#define OV08X40_EXPOSURE_MIN 4 #define OV08X40_EXPOSURE_STEP 1 #define OV08X40_EXPOSURE_DEFAULT 0x40 @@ -94,6 +96,12 @@ /* Vertical Window Offset */ #define OV08X40_REG_V_WIN_OFFSET 0x3813 +/* Burst Register */ +#define OV08X40_REG_XTALK_FIRST_A 0x5a80 +#define OV08X40_REG_XTALK_LAST_A 0x5b9f +#define OV08X40_REG_XTALK_FIRST_B 0x5bc0 +#define OV08X40_REG_XTALK_LAST_B 0x5f1f + enum { OV08X40_LINK_FREQ_400MHZ_INDEX, }; @@ -126,13 +134,17 @@ struct ov08x40_mode { u32 vts_def; u32 vts_min; - /* HTS */ - u32 hts; + /* Line Length Pixels */ + u32 llp; /* Index of Link frequency config to be used */ u32 link_freq_index; /* Default register values */ struct ov08x40_reg_list reg_list; + + /* Exposure calculation */ + u16 exposure_margin; + u16 exposure_shift; }; static const struct ov08x40_reg mipi_data_rate_800mbps[] = { @@ -665,1158 +677,6 @@ static const struct ov08x40_reg mode_3856x2416_regs[] = { {0x3502, 0x10}, {0x3508, 0x0f}, {0x3509, 0x80}, - {0x5a80, 0x75}, - {0x5a81, 0x75}, - {0x5a82, 0x75}, - {0x5a83, 0x75}, - {0x5a84, 0x75}, - {0x5a85, 0x75}, - {0x5a86, 0x75}, - {0x5a87, 0x75}, - {0x5a88, 0x75}, - {0x5a89, 0x75}, - {0x5a8a, 0x75}, - {0x5a8b, 0x75}, - {0x5a8c, 0x75}, - {0x5a8d, 0x75}, - {0x5a8e, 0x75}, - {0x5a8f, 0x75}, - {0x5a90, 0x75}, - {0x5a91, 0x75}, - {0x5a92, 0x75}, - {0x5a93, 0x75}, - {0x5a94, 0x75}, - {0x5a95, 0x75}, - {0x5a96, 0x75}, - {0x5a97, 0x75}, - {0x5a98, 0x75}, - {0x5a99, 0x75}, - {0x5a9a, 0x75}, - {0x5a9b, 0x75}, - {0x5a9c, 0x75}, - {0x5a9d, 0x75}, - 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{0x5eae, 0x75}, - {0x5eaf, 0x75}, - {0x5eb0, 0x75}, - {0x5eb1, 0x75}, - {0x5eb2, 0x75}, - {0x5eb3, 0x75}, - {0x5eb4, 0x75}, - {0x5eb5, 0x75}, - {0x5eb6, 0x75}, - {0x5eb7, 0x75}, - {0x5eb8, 0x75}, - {0x5eb9, 0x75}, - {0x5eba, 0x75}, - {0x5ebb, 0x75}, - {0x5ebc, 0x75}, - {0x5ebd, 0x75}, - {0x5ebe, 0x75}, - {0x5ebf, 0x75}, - {0x5ec0, 0x75}, - {0x5ec1, 0x75}, - {0x5ec2, 0x75}, - {0x5ec3, 0x75}, - {0x5ec4, 0x75}, - {0x5ec5, 0x75}, - {0x5ec6, 0x75}, - {0x5ec7, 0x75}, - {0x5ec8, 0x75}, - {0x5ec9, 0x75}, - {0x5eca, 0x75}, - {0x5ecb, 0x75}, - {0x5ecc, 0x75}, - {0x5ecd, 0x75}, - {0x5ece, 0x75}, - {0x5ecf, 0x75}, - {0x5ed0, 0x75}, - {0x5ed1, 0x75}, - {0x5ed2, 0x75}, - {0x5ed3, 0x75}, - {0x5ed4, 0x75}, - {0x5ed5, 0x75}, - {0x5ed6, 0x75}, - {0x5ed7, 0x75}, - {0x5ed8, 0x75}, - {0x5ed9, 0x75}, - {0x5eda, 0x75}, - {0x5edb, 0x75}, - {0x5edc, 0x75}, - {0x5edd, 0x75}, - {0x5ede, 0x75}, - {0x5edf, 0x75}, - {0x5ee0, 0x75}, - {0x5ee1, 0x75}, - {0x5ee2, 0x75}, - {0x5ee3, 0x75}, - {0x5ee4, 0x75}, - {0x5ee5, 0x75}, - {0x5ee6, 0x75}, - {0x5ee7, 0x75}, - {0x5ee8, 0x75}, - {0x5ee9, 0x75}, - {0x5eea, 0x75}, - {0x5eeb, 0x75}, - {0x5eec, 0x75}, - {0x5eed, 0x75}, - {0x5eee, 0x75}, - {0x5eef, 0x75}, - {0x5ef0, 0x75}, - {0x5ef1, 0x75}, - {0x5ef2, 0x75}, - {0x5ef3, 0x75}, - {0x5ef4, 0x75}, - {0x5ef5, 0x75}, - {0x5ef6, 0x75}, - {0x5ef7, 0x75}, - {0x5ef8, 0x75}, - {0x5ef9, 0x75}, - {0x5efa, 0x75}, - {0x5efb, 0x75}, - {0x5efc, 0x75}, - {0x5efd, 0x75}, - {0x5efe, 0x75}, - {0x5eff, 0x75}, - {0x5f00, 0x75}, - {0x5f01, 0x75}, - {0x5f02, 0x75}, - {0x5f03, 0x75}, - {0x5f04, 0x75}, - {0x5f05, 0x75}, - {0x5f06, 0x75}, - {0x5f07, 0x75}, - {0x5f08, 0x75}, - {0x5f09, 0x75}, - {0x5f0a, 0x75}, - {0x5f0b, 0x75}, - {0x5f0c, 0x75}, - {0x5f0d, 0x75}, - {0x5f0e, 0x75}, - {0x5f0f, 0x75}, - {0x5f10, 0x75}, - {0x5f11, 0x75}, - {0x5f12, 0x75}, - {0x5f13, 0x75}, - {0x5f14, 0x75}, - {0x5f15, 0x75}, - {0x5f16, 0x75}, - {0x5f17, 0x75}, - {0x5f18, 0x75}, - {0x5f19, 0x75}, - {0x5f1a, 0x75}, - {0x5f1b, 0x75}, - {0x5f1c, 0x75}, - {0x5f1d, 0x75}, - {0x5f1e, 0x75}, - {0x5f1f, 0x75}, }; static const struct ov08x40_reg mode_1928x1208_regs[] = { @@ -2354,7 +1214,7 @@ static const char * const ov08x40_test_pattern_menu[] = { /* Configurations for supported link frequencies */ #define OV08X40_LINK_FREQ_400MHZ 400000000ULL - +#define OV08X40_SCLK_96MHZ 96000000ULL #define OV08X40_EXT_CLK 19200000 #define OV08X40_DATA_LANES 4 @@ -2392,26 +1252,30 @@ static const struct ov08x40_mode supported_modes[] = { .height = 2416, .vts_def = OV08X40_VTS_30FPS, .vts_min = OV08X40_VTS_30FPS, - .hts = 640, + .llp = 0x10aa, /* in normal mode, tline time = 2 * HTS / SCLK */ .lanes = 4, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_3856x2416_regs), .regs = mode_3856x2416_regs, }, .link_freq_index = OV08X40_LINK_FREQ_400MHZ_INDEX, + .exposure_shift = 1, + .exposure_margin = OV08X40_EXPOSURE_MAX_MARGIN, }, { .width = 1928, .height = 1208, .vts_def = OV08X40_VTS_BIN_30FPS, .vts_min = OV08X40_VTS_BIN_30FPS, - .hts = 720, + .llp = 0x960, .lanes = 4, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_1928x1208_regs), .regs = mode_1928x1208_regs, }, .link_freq_index = OV08X40_LINK_FREQ_400MHZ_INDEX, + .exposure_shift = 0, + .exposure_margin = OV08X40_EXPOSURE_BIN_MAX_MARGIN, }, }; @@ -2432,6 +1296,9 @@ struct ov08x40 { /* Mutex for serialized access */ struct mutex mutex; + + /* True if the device has been identified */ + bool identified; }; #define to_ov08x40(_sd) container_of(_sd, struct ov08x40, sd) @@ -2472,6 +1339,40 @@ static int ov08x40_read_reg(struct ov08x40 *ov08x, return 0; } +static int ov08x40_burst_fill_regs(struct ov08x40 *ov08x, u16 first_reg, + u16 last_reg, u8 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + struct i2c_msg msgs; + size_t i, num_regs; + int ret; + + num_regs = last_reg - first_reg + 1; + msgs.addr = client->addr; + msgs.flags = 0; + msgs.len = 2 + num_regs; + msgs.buf = kmalloc(msgs.len, GFP_KERNEL); + + if (!msgs.buf) + return -ENOMEM; + + put_unaligned_be16(first_reg, msgs.buf); + + for (i = 0; i < num_regs; ++i) + msgs.buf[2 + i] = val; + + ret = i2c_transfer(client->adapter, &msgs, 1); + + kfree(msgs.buf); + + if (ret != 1) { + dev_err(&client->dev, "Failed regs transferred: %d\n", ret); + return -EIO; + } + + return 0; +} + /* Write registers up to 4 at a time */ static int ov08x40_write_reg(struct ov08x40 *ov08x, u16 reg, u32 len, u32 __val) @@ -2664,13 +1565,23 @@ static int ov08x40_set_ctrl(struct v4l2_ctrl *ctrl) struct ov08x40, ctrl_handler); struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); s64 max; + int exp; + int fll; int ret = 0; /* Propagate change of current control to all related controls */ switch (ctrl->id) { case V4L2_CID_VBLANK: /* Update max exposure while meeting expected vblanking */ - max = ov08x->cur_mode->height + ctrl->val - OV08X40_EXPOSURE_MAX_MARGIN; + /* + * because in normal mode, 1 HTS = 0.5 tline + * fps = sclk / hts / vts + * so the vts value needs to be double + */ + max = ((ov08x->cur_mode->height + ctrl->val) << + ov08x->cur_mode->exposure_shift) - + ov08x->cur_mode->exposure_margin; + __v4l2_ctrl_modify_range(ov08x->exposure, ov08x->exposure->minimum, max, ov08x->exposure->step, max); @@ -2694,15 +1605,20 @@ static int ov08x40_set_ctrl(struct v4l2_ctrl *ctrl) ret = ov08x40_update_digital_gain(ov08x, ctrl->val); break; case V4L2_CID_EXPOSURE: + exp = (ctrl->val << ov08x->cur_mode->exposure_shift) - + ov08x->cur_mode->exposure_margin; + ret = ov08x40_write_reg(ov08x, OV08X40_REG_EXPOSURE, OV08X40_REG_VALUE_24BIT, - ctrl->val); + exp); break; case V4L2_CID_VBLANK: + fll = ((ov08x->cur_mode->height + ctrl->val) << + ov08x->cur_mode->exposure_shift); + ret = ov08x40_write_reg(ov08x, OV08X40_REG_VTS, OV08X40_REG_VALUE_16BIT, - ov08x->cur_mode->height - + ctrl->val); + fll); break; case V4L2_CID_TEST_PATTERN: ret = ov08x40_enable_test_pattern(ov08x, ctrl->val); @@ -2812,6 +1728,7 @@ ov08x40_set_pad_format(struct v4l2_subdev *sd, s64 h_blank; s64 pixel_rate; s64 link_freq; + u64 steps; mutex_lock(&ov08x->mutex); @@ -2839,13 +1756,22 @@ ov08x40_set_pad_format(struct v4l2_subdev *sd, ov08x->cur_mode->height; vblank_min = ov08x->cur_mode->vts_min - ov08x->cur_mode->height; + + /* + * The frame length line should be aligned to a multiple of 4, + * as provided by the sensor vendor, in normal mode. + */ + steps = mode->exposure_shift == 1 ? 4 : 1; + __v4l2_ctrl_modify_range(ov08x->vblank, vblank_min, OV08X40_VTS_MAX - ov08x->cur_mode->height, - 1, + steps, vblank_def); __v4l2_ctrl_s_ctrl(ov08x->vblank, vblank_def); - h_blank = ov08x->cur_mode->hts; + + h_blank = ov08x->cur_mode->llp - ov08x->cur_mode->width; + __v4l2_ctrl_modify_range(ov08x->hblank, h_blank, h_blank, 1, h_blank); } @@ -2887,6 +1813,22 @@ static int ov08x40_start_streaming(struct ov08x40 *ov08x) return ret; } + /* Use i2c burst to write register on full size registers */ + if (ov08x->cur_mode->exposure_shift == 1) { + ret = ov08x40_burst_fill_regs(ov08x, OV08X40_REG_XTALK_FIRST_A, + OV08X40_REG_XTALK_LAST_A, 0x75); + if (ret == 0) + ret = ov08x40_burst_fill_regs(ov08x, + OV08X40_REG_XTALK_FIRST_B, + OV08X40_REG_XTALK_LAST_B, + 0x75); + } + + if (ret) { + dev_err(&client->dev, "%s failed to set regs\n", __func__); + return ret; + } + /* Apply customized values from user */ ret = __v4l2_ctrl_handler_setup(ov08x->sd.ctrl_handler); if (ret) @@ -2948,6 +1890,9 @@ static int ov08x40_identify_module(struct ov08x40 *ov08x) int ret; u32 val; + if (ov08x->identified) + return 0; + ret = ov08x40_read_reg(ov08x, OV08X40_REG_CHIP_ID, OV08X40_REG_VALUE_24BIT, &val); if (ret) @@ -2956,9 +1901,11 @@ static int ov08x40_identify_module(struct ov08x40 *ov08x) if (val != OV08X40_CHIP_ID) { dev_err(&client->dev, "chip id mismatch: %x!=%x\n", OV08X40_CHIP_ID, val); - return -EIO; + return -ENXIO; } + ov08x->identified = true; + return 0; } @@ -3035,7 +1982,8 @@ static int ov08x40_init_controls(struct ov08x40 *ov08x) OV08X40_VTS_MAX - mode->height, 1, vblank_def); - hblank = ov08x->cur_mode->hts; + hblank = ov08x->cur_mode->llp - ov08x->cur_mode->width; + ov08x->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, V4L2_CID_HBLANK, hblank, hblank, 1, hblank); @@ -3175,6 +2123,7 @@ static int ov08x40_probe(struct i2c_client *client) { struct ov08x40 *ov08x; int ret; + bool full_power; /* Check HW config */ ret = ov08x40_check_hwcfg(&client->dev); @@ -3190,11 +2139,14 @@ static int ov08x40_probe(struct i2c_client *client) /* Initialize subdev */ v4l2_i2c_subdev_init(&ov08x->sd, client, &ov08x40_subdev_ops); - /* Check module identity */ - ret = ov08x40_identify_module(ov08x); - if (ret) { - dev_err(&client->dev, "failed to find sensor: %d\n", ret); - return ret; + full_power = acpi_dev_state_d0(&client->dev); + if (full_power) { + /* Check module identity */ + ret = ov08x40_identify_module(ov08x); + if (ret) { + dev_err(&client->dev, "failed to find sensor: %d\n", ret); + return ret; + } } /* Set default mode to max resolution */ @@ -3222,11 +2174,8 @@ static int ov08x40_probe(struct i2c_client *client) if (ret < 0) goto error_media_entity; - /* - * Device is already turned on by i2c-core with ACPI domain PM. - * Enable runtime PM and turn off the device. - */ - pm_runtime_set_active(&client->dev); + if (full_power) + pm_runtime_set_active(&client->dev); pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); @@ -3270,11 +2219,13 @@ static struct i2c_driver ov08x40_i2c_driver = { }, .probe = ov08x40_probe, .remove = ov08x40_remove, + .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE, }; module_i2c_driver(ov08x40_i2c_driver); MODULE_AUTHOR("Jason Chen <jason.z.chen@intel.com>"); +MODULE_AUTHOR("Qingwu Zhang <qingwu.zhang@intel.com>"); MODULE_AUTHOR("Shawn Tu"); MODULE_DESCRIPTION("OmniVision OV08X40 sensor driver"); MODULE_LICENSE("GPL"); |