// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2022 Intel Corporation. #include #include #include #include #include #include #include #include #include #include #define OV08D10_SCLK 144000000ULL #define OV08D10_XVCLK_19_2 19200000 #define OV08D10_ROWCLK 36000 #define OV08D10_DATA_LANES 2 #define OV08D10_RGB_DEPTH 10 #define OV08D10_REG_PAGE 0xfd #define OV08D10_REG_GLOBAL_EFFECTIVE 0x01 #define OV08D10_REG_CHIP_ID_0 0x00 #define OV08D10_REG_CHIP_ID_1 0x01 #define OV08D10_ID_MASK GENMASK(15, 0) #define OV08D10_CHIP_ID 0x5608 #define OV08D10_REG_MODE_SELECT 0xa0 #define OV08D10_MODE_STANDBY 0x00 #define OV08D10_MODE_STREAMING 0x01 /* vertical-timings from sensor */ #define OV08D10_REG_VTS_H 0x05 #define OV08D10_REG_VTS_L 0x06 #define OV08D10_VTS_MAX 0x7fff /* Exposure controls from sensor */ #define OV08D10_REG_EXPOSURE_H 0x02 #define OV08D10_REG_EXPOSURE_M 0x03 #define OV08D10_REG_EXPOSURE_L 0x04 #define OV08D10_EXPOSURE_MIN 6 #define OV08D10_EXPOSURE_MAX_MARGIN 6 #define OV08D10_EXPOSURE_STEP 1 /* Analog gain controls from sensor */ #define OV08D10_REG_ANALOG_GAIN 0x24 #define OV08D10_ANAL_GAIN_MIN 128 #define OV08D10_ANAL_GAIN_MAX 2047 #define OV08D10_ANAL_GAIN_STEP 1 /* Digital gain controls from sensor */ #define OV08D10_REG_MWB_DGAIN_C 0x21 #define OV08D10_REG_MWB_DGAIN_F 0x22 #define OV08D10_DGTL_GAIN_MIN 0 #define OV08D10_DGTL_GAIN_MAX 4095 #define OV08D10_DGTL_GAIN_STEP 1 #define OV08D10_DGTL_GAIN_DEFAULT 1024 /* Test Pattern Control */ #define OV08D10_REG_TEST_PATTERN 0x12 #define OV08D10_TEST_PATTERN_ENABLE 0x01 #define OV08D10_TEST_PATTERN_DISABLE 0x00 /* Flip Mirror Controls from sensor */ #define OV08D10_REG_FLIP_OPT 0x32 #define OV08D10_REG_FLIP_MASK 0x3 #define to_ov08d10(_sd) container_of(_sd, struct ov08d10, sd) struct ov08d10_reg { u8 address; u8 val; }; struct ov08d10_reg_list { u32 num_of_regs; const struct ov08d10_reg *regs; }; struct ov08d10_link_freq_config { const struct ov08d10_reg_list reg_list; }; struct ov08d10_mode { /* Frame width in pixels */ u32 width; /* Frame height in pixels */ u32 height; /* Horizontal timining size */ u32 hts; /* Default vertical timining size */ u32 vts_def; /* Min vertical timining size */ u32 vts_min; /* Link frequency needed for this resolution */ u32 link_freq_index; /* Sensor register settings for this resolution */ const struct ov08d10_reg_list reg_list; /* Number of data lanes */ u8 data_lanes; }; /* 3280x2460, 3264x2448 need 720Mbps/lane, 2 lanes */ static const struct ov08d10_reg mipi_data_rate_720mbps[] = { {0xfd, 0x00}, {0x11, 0x2a}, {0x14, 0x43}, {0x1a, 0x04}, {0x1b, 0xe1}, {0x1e, 0x13}, {0xb7, 0x02} }; /* 1632x1224 needs 360Mbps/lane, 2 lanes */ static const struct ov08d10_reg mipi_data_rate_360mbps[] = { {0xfd, 0x00}, {0x1a, 0x04}, {0x1b, 0xe1}, {0x1d, 0x00}, {0x1c, 0x19}, {0x11, 0x2a}, {0x14, 0x54}, {0x1e, 0x13}, {0xb7, 0x02} }; static const struct ov08d10_reg lane_2_mode_3280x2460[] = { /* 3280x2460 resolution */ {0xfd, 0x01}, {0x12, 0x00}, {0x03, 0x12}, {0x04, 0x58}, {0x07, 0x05}, {0x21, 0x02}, {0x24, 0x30}, {0x33, 0x03}, {0x01, 0x03}, {0x19, 0x10}, {0x42, 0x55}, {0x43, 0x00}, {0x47, 0x07}, {0x48, 0x08}, {0xb2, 0x7f}, {0xb3, 0x7b}, {0xbd, 0x08}, {0xd2, 0x57}, {0xd3, 0x10}, {0xd4, 0x08}, {0xd5, 0x08}, {0xd6, 0x06}, {0xb1, 0x00}, {0xb4, 0x00}, {0xb7, 0x0a}, {0xbc, 0x44}, {0xbf, 0x48}, {0xc1, 0x10}, {0xc3, 0x24}, {0xc8, 0x03}, {0xc9, 0xf8}, {0xe1, 0x33}, {0xe2, 0xbb}, {0x51, 0x0c}, {0x52, 0x0a}, {0x57, 0x8c}, {0x59, 0x09}, {0x5a, 0x08}, {0x5e, 0x10}, {0x60, 0x02}, {0x6d, 0x5c}, {0x76, 0x16}, {0x7c, 0x11}, {0x90, 0x28}, {0x91, 0x16}, {0x92, 0x1c}, {0x93, 0x24}, {0x95, 0x48}, {0x9c, 0x06}, {0xca, 0x0c}, {0xce, 0x0d}, {0xfd, 0x01}, {0xc0, 0x00}, {0xdd, 0x18}, {0xde, 0x19}, {0xdf, 0x32}, {0xe0, 0x70}, {0xfd, 0x01}, {0xc2, 0x05}, {0xd7, 0x88}, {0xd8, 0x77}, {0xd9, 0x00}, {0xfd, 0x07}, {0x00, 0xf8}, {0x01, 0x2b}, {0x05, 0x40}, {0x08, 0x06}, {0x09, 0x11}, {0x28, 0x6f}, {0x2a, 0x20}, {0x2b, 0x05}, {0x5e, 0x10}, {0x52, 0x00}, {0x53, 0x7c}, {0x54, 0x00}, {0x55, 0x7c}, {0x56, 0x00}, {0x57, 0x7c}, {0x58, 0x00}, {0x59, 0x7c}, {0xfd, 0x02}, {0x9a, 0x30}, {0xa8, 0x02}, {0xfd, 0x02}, {0xa1, 0x01}, {0xa2, 0x09}, {0xa3, 0x9c}, {0xa5, 0x00}, {0xa6, 0x0c}, {0xa7, 0xd0}, {0xfd, 0x00}, {0x24, 0x01}, {0xc0, 0x16}, {0xc1, 0x08}, {0xc2, 0x30}, {0x8e, 0x0c}, {0x8f, 0xd0}, {0x90, 0x09}, {0x91, 0x9c}, {0xfd, 0x05}, {0x04, 0x40}, {0x07, 0x00}, {0x0d, 0x01}, {0x0f, 0x01}, {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x0c}, {0x13, 0xcf}, {0x14, 0x00}, {0x15, 0x00}, {0xfd, 0x00}, {0x20, 0x0f}, {0xe7, 0x03}, {0xe7, 0x00} }; static const struct ov08d10_reg lane_2_mode_3264x2448[] = { /* 3264x2448 resolution */ {0xfd, 0x01}, {0x12, 0x00}, {0x03, 0x12}, {0x04, 0x58}, {0x07, 0x05}, {0x21, 0x02}, {0x24, 0x30}, {0x33, 0x03}, {0x01, 0x03}, {0x19, 0x10}, {0x42, 0x55}, {0x43, 0x00}, {0x47, 0x07}, {0x48, 0x08}, {0xb2, 0x7f}, {0xb3, 0x7b}, {0xbd, 0x08}, {0xd2, 0x57}, {0xd3, 0x10}, {0xd4, 0x08}, {0xd5, 0x08}, {0xd6, 0x06}, {0xb1, 0x00}, {0xb4, 0x00}, {0xb7, 0x0a}, {0xbc, 0x44}, {0xbf, 0x48}, {0xc1, 0x10}, {0xc3, 0x24}, {0xc8, 0x03}, {0xc9, 0xf8}, {0xe1, 0x33}, {0xe2, 0xbb}, {0x51, 0x0c}, {0x52, 0x0a}, {0x57, 0x8c}, {0x59, 0x09}, {0x5a, 0x08}, {0x5e, 0x10}, {0x60, 0x02}, {0x6d, 0x5c}, {0x76, 0x16}, {0x7c, 0x11}, {0x90, 0x28}, {0x91, 0x16}, {0x92, 0x1c}, {0x93, 0x24}, {0x95, 0x48}, {0x9c, 0x06}, {0xca, 0x0c}, {0xce, 0x0d}, {0xfd, 0x01}, {0xc0, 0x00}, {0xdd, 0x18}, {0xde, 0x19}, {0xdf, 0x32}, {0xe0, 0x70}, {0xfd, 0x01}, {0xc2, 0x05}, {0xd7, 0x88}, {0xd8, 0x77}, {0xd9, 0x00}, {0xfd, 0x07}, {0x00, 0xf8}, {0x01, 0x2b}, {0x05, 0x40}, {0x08, 0x06}, {0x09, 0x11}, {0x28, 0x6f}, {0x2a, 0x20}, {0x2b, 0x05}, {0x5e, 0x10}, {0x52, 0x00}, {0x53, 0x7c}, {0x54, 0x00}, {0x55, 0x7c}, {0x56, 0x00}, {0x57, 0x7c}, {0x58, 0x00}, {0x59, 0x7c}, {0xfd, 0x02}, {0x9a, 0x30}, {0xa8, 0x02}, {0xfd, 0x02}, {0xa1, 0x09}, {0xa2, 0x09}, {0xa3, 0x90}, {0xa5, 0x08}, {0xa6, 0x0c}, {0xa7, 0xc0}, {0xfd, 0x00}, {0x24, 0x01}, {0xc0, 0x16}, {0xc1, 0x08}, {0xc2, 0x30}, {0x8e, 0x0c}, {0x8f, 0xc0}, {0x90, 0x09}, {0x91, 0x90}, {0xfd, 0x05}, {0x04, 0x40}, {0x07, 0x00}, {0x0d, 0x01}, {0x0f, 0x01}, {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x0c}, {0x13, 0xcf}, {0x14, 0x00}, {0x15, 0x00}, {0xfd, 0x00}, {0x20, 0x0f}, {0xe7, 0x03}, {0xe7, 0x00} }; static const struct ov08d10_reg lane_2_mode_1632x1224[] = { /* 1640x1232 resolution */ {0xfd, 0x01}, {0x1a, 0x0a}, {0x1b, 0x08}, {0x2a, 0x01}, {0x2b, 0x9a}, {0xfd, 0x01}, {0x12, 0x00}, {0x03, 0x05}, {0x04, 0xe2}, {0x07, 0x05}, {0x21, 0x02}, {0x24, 0x30}, {0x33, 0x03}, {0x31, 0x06}, {0x33, 0x03}, {0x01, 0x03}, {0x19, 0x10}, {0x42, 0x55}, {0x43, 0x00}, {0x47, 0x07}, {0x48, 0x08}, {0xb2, 0x7f}, {0xb3, 0x7b}, {0xbd, 0x08}, {0xd2, 0x57}, {0xd3, 0x10}, {0xd4, 0x08}, {0xd5, 0x08}, {0xd6, 0x06}, {0xb1, 0x00}, {0xb4, 0x00}, {0xb7, 0x0a}, {0xbc, 0x44}, {0xbf, 0x48}, {0xc1, 0x10}, {0xc3, 0x24}, {0xc8, 0x03}, {0xc9, 0xf8}, {0xe1, 0x33}, {0xe2, 0xbb}, {0x51, 0x0c}, {0x52, 0x0a}, {0x57, 0x8c}, {0x59, 0x09}, {0x5a, 0x08}, {0x5e, 0x10}, {0x60, 0x02}, {0x6d, 0x5c}, {0x76, 0x16}, {0x7c, 0x1a}, {0x90, 0x28}, {0x91, 0x16}, {0x92, 0x1c}, {0x93, 0x24}, {0x95, 0x48}, {0x9c, 0x06}, {0xca, 0x0c}, {0xce, 0x0d}, {0xfd, 0x01}, {0xc0, 0x00}, {0xdd, 0x18}, {0xde, 0x19}, {0xdf, 0x32}, {0xe0, 0x70}, {0xfd, 0x01}, {0xc2, 0x05}, {0xd7, 0x88}, {0xd8, 0x77}, {0xd9, 0x00}, {0xfd, 0x07}, {0x00, 0xf8}, {0x01, 0x2b}, {0x05, 0x40}, {0x08, 0x03}, {0x09, 0x08}, {0x28, 0x6f}, {0x2a, 0x20}, {0x2b, 0x05}, {0x2c, 0x01}, {0x50, 0x02}, {0x51, 0x03}, {0x5e, 0x00}, {0x52, 0x00}, {0x53, 0x7c}, {0x54, 0x00}, {0x55, 0x7c}, {0x56, 0x00}, {0x57, 0x7c}, {0x58, 0x00}, {0x59, 0x7c}, {0xfd, 0x02}, {0x9a, 0x30}, {0xa8, 0x02}, {0xfd, 0x02}, {0xa9, 0x04}, {0xaa, 0xd0}, {0xab, 0x06}, {0xac, 0x68}, {0xa1, 0x09}, {0xa2, 0x04}, {0xa3, 0xc8}, {0xa5, 0x04}, {0xa6, 0x06}, {0xa7, 0x60}, {0xfd, 0x05}, {0x06, 0x80}, {0x18, 0x06}, {0x19, 0x68}, {0xfd, 0x00}, {0x24, 0x01}, {0xc0, 0x16}, {0xc1, 0x08}, {0xc2, 0x30}, {0x8e, 0x06}, {0x8f, 0x60}, {0x90, 0x04}, {0x91, 0xc8}, {0x93, 0x0e}, {0x94, 0x77}, {0x95, 0x77}, {0x96, 0x10}, {0x98, 0x88}, {0x9c, 0x1a}, {0xfd, 0x05}, {0x04, 0x40}, {0x07, 0x99}, {0x0d, 0x03}, {0x0f, 0x03}, {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x0c}, {0x13, 0xcf}, {0x14, 0x00}, {0x15, 0x00}, {0xfd, 0x00}, {0x20, 0x0f}, {0xe7, 0x03}, {0xe7, 0x00}, }; static const char * const ov08d10_test_pattern_menu[] = { "Disabled", "Standard Color Bar", }; struct ov08d10 { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_ctrl_handler ctrl_handler; struct clk *xvclk; /* V4L2 Controls */ struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *vblank; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vflip; struct v4l2_ctrl *hflip; struct v4l2_ctrl *exposure; /* Current mode */ const struct ov08d10_mode *cur_mode; /* To serialize asynchronus callbacks */ struct mutex mutex; /* lanes index */ u8 nlanes; const struct ov08d10_lane_cfg *priv_lane; u8 modes_size; }; struct ov08d10_lane_cfg { const s64 link_freq_menu[2]; const struct ov08d10_link_freq_config link_freq_configs[2]; const struct ov08d10_mode sp_modes[3]; }; static const struct ov08d10_lane_cfg lane_cfg_2 = { { 720000000, 360000000, }, {{ .reg_list = { .num_of_regs = ARRAY_SIZE(mipi_data_rate_720mbps), .regs = mipi_data_rate_720mbps, } }, { .reg_list = { .num_of_regs = ARRAY_SIZE(mipi_data_rate_360mbps), .regs = mipi_data_rate_360mbps, } }}, {{ .width = 3280, .height = 2460, .hts = 1840, .vts_def = 2504, .vts_min = 2504, .reg_list = { .num_of_regs = ARRAY_SIZE(lane_2_mode_3280x2460), .regs = lane_2_mode_3280x2460, }, .link_freq_index = 0, .data_lanes = 2, }, { .width = 3264, .height = 2448, .hts = 1840, .vts_def = 2504, .vts_min = 2504, .reg_list = { .num_of_regs = ARRAY_SIZE(lane_2_mode_3264x2448), .regs = lane_2_mode_3264x2448, }, .link_freq_index = 0, .data_lanes = 2, }, { .width = 1632, .height = 1224, .hts = 1912, .vts_def = 3736, .vts_min = 3736, .reg_list = { .num_of_regs = ARRAY_SIZE(lane_2_mode_1632x1224), .regs = lane_2_mode_1632x1224, }, .link_freq_index = 1, .data_lanes = 2, }} }; static u32 ov08d10_get_format_code(struct ov08d10 *ov08d10) { static const u32 codes[2][2] = { { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10}, { MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SGBRG10_1X10}, }; return codes[ov08d10->vflip->val][ov08d10->hflip->val]; } static unsigned int ov08d10_modes_num(const struct ov08d10 *ov08d10) { unsigned int i, count = 0; for (i = 0; i < ARRAY_SIZE(ov08d10->priv_lane->sp_modes); i++) { if (ov08d10->priv_lane->sp_modes[i].width == 0) break; count++; } return count; } static u64 to_rate(const s64 *link_freq_menu, u32 f_index, u8 nlanes) { u64 pixel_rate = link_freq_menu[f_index] * 2 * nlanes; do_div(pixel_rate, OV08D10_RGB_DEPTH); return pixel_rate; } static u64 to_pixels_per_line(const s64 *link_freq_menu, u32 hts, u32 f_index, u8 nlanes) { u64 ppl = hts * to_rate(link_freq_menu, f_index, nlanes); do_div(ppl, OV08D10_SCLK); return ppl; } static int ov08d10_write_reg_list(struct ov08d10 *ov08d10, const struct ov08d10_reg_list *r_list) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); unsigned int i; int ret; for (i = 0; i < r_list->num_of_regs; i++) { ret = i2c_smbus_write_byte_data(client, r_list->regs[i].address, r_list->regs[i].val); if (ret) { dev_err_ratelimited(&client->dev, "failed to write reg 0x%2.2x. error = %d", r_list->regs[i].address, ret); return ret; } } return 0; } static int ov08d10_update_analog_gain(struct ov08d10 *ov08d10, u32 a_gain) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; int ret; val = ((a_gain >> 3) & 0xFF); /* CIS control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; /* update AGAIN */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_ANALOG_GAIN, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_update_digital_gain(struct ov08d10 *ov08d10, u32 d_gain) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; int ret; d_gain = (d_gain >> 1); /* CIS control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; val = ((d_gain >> 8) & 0x3F); /* update DGAIN */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_MWB_DGAIN_C, val); if (ret < 0) return ret; val = d_gain & 0xFF; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_MWB_DGAIN_F, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_set_exposure(struct ov08d10 *ov08d10, u32 exposure) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; u8 hts_h, hts_l; u32 hts, cur_vts, exp_cal; int ret; cur_vts = ov08d10->cur_mode->vts_def; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; hts_h = i2c_smbus_read_byte_data(client, 0x37); hts_l = i2c_smbus_read_byte_data(client, 0x38); hts = ((hts_h << 8) | (hts_l)); exp_cal = 66 * OV08D10_ROWCLK / hts; exposure = exposure * exp_cal / (cur_vts - OV08D10_EXPOSURE_MAX_MARGIN); /* CIS control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; /* update exposure */ val = ((exposure >> 16) & 0xFF); ret = i2c_smbus_write_byte_data(client, OV08D10_REG_EXPOSURE_H, val); if (ret < 0) return ret; val = ((exposure >> 8) & 0xFF); ret = i2c_smbus_write_byte_data(client, OV08D10_REG_EXPOSURE_M, val); if (ret < 0) return ret; val = exposure & 0xFF; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_EXPOSURE_L, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_set_vblank(struct ov08d10 *ov08d10, u32 vblank) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; int ret; /* CIS control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; val = ((vblank >> 8) & 0xFF); /* update vblank */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_VTS_H, val); if (ret < 0) return ret; val = vblank & 0xFF; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_VTS_L, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_test_pattern(struct ov08d10 *ov08d10, u32 pattern) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; int ret; if (pattern) val = OV08D10_TEST_PATTERN_ENABLE; else val = OV08D10_TEST_PATTERN_DISABLE; /* CIS control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_TEST_PATTERN, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_set_ctrl_flip(struct ov08d10 *ov08d10, u32 ctrl_val) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u8 val; int ret; /* System control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; ret = i2c_smbus_read_byte_data(client, OV08D10_REG_FLIP_OPT); if (ret < 0) return ret; val = ret | (ctrl_val & OV08D10_REG_FLIP_MASK); ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) return ret; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_FLIP_OPT, val); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_GLOBAL_EFFECTIVE, 0x01); } static int ov08d10_set_ctrl(struct v4l2_ctrl *ctrl) { struct ov08d10 *ov08d10 = container_of(ctrl->handler, struct ov08d10, ctrl_handler); struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); s64 exposure_max; int ret; /* Propagate change of current control to all related controls */ if (ctrl->id == V4L2_CID_VBLANK) { /* Update max exposure while meeting expected vblanking */ exposure_max = ov08d10->cur_mode->height + ctrl->val - OV08D10_EXPOSURE_MAX_MARGIN; __v4l2_ctrl_modify_range(ov08d10->exposure, ov08d10->exposure->minimum, exposure_max, ov08d10->exposure->step, exposure_max); } /* V4L2 controls values will be applied only when power is already up */ if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_ANALOGUE_GAIN: ret = ov08d10_update_analog_gain(ov08d10, ctrl->val); break; case V4L2_CID_DIGITAL_GAIN: ret = ov08d10_update_digital_gain(ov08d10, ctrl->val); break; case V4L2_CID_EXPOSURE: ret = ov08d10_set_exposure(ov08d10, ctrl->val); break; case V4L2_CID_VBLANK: ret = ov08d10_set_vblank(ov08d10, ctrl->val); break; case V4L2_CID_TEST_PATTERN: ret = ov08d10_test_pattern(ov08d10, ctrl->val); break; case V4L2_CID_HFLIP: case V4L2_CID_VFLIP: ret = ov08d10_set_ctrl_flip(ov08d10, ov08d10->hflip->val | ov08d10->vflip->val << 1); break; default: ret = -EINVAL; break; } pm_runtime_put(&client->dev); return ret; } static const struct v4l2_ctrl_ops ov08d10_ctrl_ops = { .s_ctrl = ov08d10_set_ctrl, }; static int ov08d10_init_controls(struct ov08d10 *ov08d10) { struct v4l2_ctrl_handler *ctrl_hdlr; u8 link_freq_size; s64 exposure_max; s64 vblank_def; s64 vblank_min; s64 h_blank; s64 pixel_rate_max; const struct ov08d10_mode *mode; int ret; ctrl_hdlr = &ov08d10->ctrl_handler; ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); if (ret) return ret; ctrl_hdlr->lock = &ov08d10->mutex; link_freq_size = ARRAY_SIZE(ov08d10->priv_lane->link_freq_menu); ov08d10->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_LINK_FREQ, link_freq_size - 1, 0, ov08d10->priv_lane->link_freq_menu); if (ov08d10->link_freq) ov08d10->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; pixel_rate_max = to_rate(ov08d10->priv_lane->link_freq_menu, 0, ov08d10->cur_mode->data_lanes); ov08d10->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_PIXEL_RATE, 0, pixel_rate_max, 1, pixel_rate_max); mode = ov08d10->cur_mode; vblank_def = mode->vts_def - mode->height; vblank_min = mode->vts_min - mode->height; ov08d10->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_VBLANK, vblank_min, OV08D10_VTS_MAX - mode->height, 1, vblank_def); h_blank = to_pixels_per_line(ov08d10->priv_lane->link_freq_menu, mode->hts, mode->link_freq_index, mode->data_lanes) - mode->width; ov08d10->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_HBLANK, h_blank, h_blank, 1, h_blank); if (ov08d10->hblank) ov08d10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, OV08D10_ANAL_GAIN_MIN, OV08D10_ANAL_GAIN_MAX, OV08D10_ANAL_GAIN_STEP, OV08D10_ANAL_GAIN_MIN); v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_DIGITAL_GAIN, OV08D10_DGTL_GAIN_MIN, OV08D10_DGTL_GAIN_MAX, OV08D10_DGTL_GAIN_STEP, OV08D10_DGTL_GAIN_DEFAULT); exposure_max = mode->vts_def - OV08D10_EXPOSURE_MAX_MARGIN; ov08d10->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_EXPOSURE, OV08D10_EXPOSURE_MIN, exposure_max, OV08D10_EXPOSURE_STEP, exposure_max); v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov08d10_test_pattern_menu) - 1, 0, 0, ov08d10_test_pattern_menu); ov08d10->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); if (ov08d10->hflip) ov08d10->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; ov08d10->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &ov08d10_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); if (ov08d10->vflip) ov08d10->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; if (ctrl_hdlr->error) return ctrl_hdlr->error; ov08d10->sd.ctrl_handler = ctrl_hdlr; return 0; } static void ov08d10_update_pad_format(struct ov08d10 *ov08d10, const struct ov08d10_mode *mode, struct v4l2_mbus_framefmt *fmt) { fmt->width = mode->width; fmt->height = mode->height; fmt->code = ov08d10_get_format_code(ov08d10); fmt->field = V4L2_FIELD_NONE; } static int ov08d10_start_streaming(struct ov08d10 *ov08d10) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); const struct ov08d10_reg_list *reg_list; int link_freq_index, ret; link_freq_index = ov08d10->cur_mode->link_freq_index; reg_list = &ov08d10->priv_lane->link_freq_configs[link_freq_index].reg_list; /* soft reset */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x00); if (ret < 0) { dev_err(&client->dev, "failed to reset sensor"); return ret; } ret = i2c_smbus_write_byte_data(client, 0x20, 0x0e); if (ret < 0) { dev_err(&client->dev, "failed to reset sensor"); return ret; } usleep_range(3000, 4000); ret = i2c_smbus_write_byte_data(client, 0x20, 0x0b); if (ret < 0) { dev_err(&client->dev, "failed to reset sensor"); return ret; } /* update sensor setting */ ret = ov08d10_write_reg_list(ov08d10, reg_list); if (ret) { dev_err(&client->dev, "failed to set plls"); return ret; } reg_list = &ov08d10->cur_mode->reg_list; ret = ov08d10_write_reg_list(ov08d10, reg_list); if (ret) { dev_err(&client->dev, "failed to set mode"); return ret; } ret = __v4l2_ctrl_handler_setup(ov08d10->sd.ctrl_handler); if (ret) return ret; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x00); if (ret < 0) return ret; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_MODE_SELECT, OV08D10_MODE_STREAMING); if (ret < 0) return ret; return i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); } static void ov08d10_stop_streaming(struct ov08d10 *ov08d10) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); int ret; ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x00); if (ret < 0) { dev_err(&client->dev, "failed to stop streaming"); return; } ret = i2c_smbus_write_byte_data(client, OV08D10_REG_MODE_SELECT, OV08D10_MODE_STANDBY); if (ret < 0) { dev_err(&client->dev, "failed to stop streaming"); return; } ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x01); if (ret < 0) { dev_err(&client->dev, "failed to stop streaming"); return; } } static int ov08d10_set_stream(struct v4l2_subdev *sd, int enable) { struct ov08d10 *ov08d10 = to_ov08d10(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; mutex_lock(&ov08d10->mutex); if (enable) { ret = pm_runtime_resume_and_get(&client->dev); if (ret < 0) { mutex_unlock(&ov08d10->mutex); return ret; } ret = ov08d10_start_streaming(ov08d10); if (ret) { enable = 0; ov08d10_stop_streaming(ov08d10); pm_runtime_put(&client->dev); } } else { ov08d10_stop_streaming(ov08d10); pm_runtime_put(&client->dev); } /* vflip and hflip cannot change during streaming */ __v4l2_ctrl_grab(ov08d10->vflip, enable); __v4l2_ctrl_grab(ov08d10->hflip, enable); mutex_unlock(&ov08d10->mutex); return ret; } static int ov08d10_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct ov08d10 *ov08d10 = to_ov08d10(sd); const struct ov08d10_mode *mode; s32 vblank_def, h_blank; s64 pixel_rate; mode = v4l2_find_nearest_size(ov08d10->priv_lane->sp_modes, ov08d10->modes_size, width, height, fmt->format.width, fmt->format.height); mutex_lock(&ov08d10->mutex); ov08d10_update_pad_format(ov08d10, mode, &fmt->format); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { *v4l2_subdev_state_get_format(sd_state, fmt->pad) = fmt->format; } else { ov08d10->cur_mode = mode; __v4l2_ctrl_s_ctrl(ov08d10->link_freq, mode->link_freq_index); pixel_rate = to_rate(ov08d10->priv_lane->link_freq_menu, mode->link_freq_index, ov08d10->cur_mode->data_lanes); __v4l2_ctrl_s_ctrl_int64(ov08d10->pixel_rate, pixel_rate); /* Update limits and set FPS to default */ vblank_def = mode->vts_def - mode->height; __v4l2_ctrl_modify_range(ov08d10->vblank, mode->vts_min - mode->height, OV08D10_VTS_MAX - mode->height, 1, vblank_def); __v4l2_ctrl_s_ctrl(ov08d10->vblank, vblank_def); h_blank = to_pixels_per_line(ov08d10->priv_lane->link_freq_menu, mode->hts, mode->link_freq_index, ov08d10->cur_mode->data_lanes) - mode->width; __v4l2_ctrl_modify_range(ov08d10->hblank, h_blank, h_blank, 1, h_blank); } mutex_unlock(&ov08d10->mutex); return 0; } static int ov08d10_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct ov08d10 *ov08d10 = to_ov08d10(sd); mutex_lock(&ov08d10->mutex); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) fmt->format = *v4l2_subdev_state_get_format(sd_state, fmt->pad); else ov08d10_update_pad_format(ov08d10, ov08d10->cur_mode, &fmt->format); mutex_unlock(&ov08d10->mutex); return 0; } static int ov08d10_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { struct ov08d10 *ov08d10 = to_ov08d10(sd); if (code->index > 0) return -EINVAL; mutex_lock(&ov08d10->mutex); code->code = ov08d10_get_format_code(ov08d10); mutex_unlock(&ov08d10->mutex); return 0; } static int ov08d10_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { struct ov08d10 *ov08d10 = to_ov08d10(sd); if (fse->index >= ov08d10->modes_size) return -EINVAL; mutex_lock(&ov08d10->mutex); if (fse->code != ov08d10_get_format_code(ov08d10)) { mutex_unlock(&ov08d10->mutex); return -EINVAL; } mutex_unlock(&ov08d10->mutex); fse->min_width = ov08d10->priv_lane->sp_modes[fse->index].width; fse->max_width = fse->min_width; fse->min_height = ov08d10->priv_lane->sp_modes[fse->index].height; fse->max_height = fse->min_height; return 0; } static int ov08d10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct ov08d10 *ov08d10 = to_ov08d10(sd); mutex_lock(&ov08d10->mutex); ov08d10_update_pad_format(ov08d10, &ov08d10->priv_lane->sp_modes[0], v4l2_subdev_state_get_format(fh->state, 0)); mutex_unlock(&ov08d10->mutex); return 0; } static const struct v4l2_subdev_video_ops ov08d10_video_ops = { .s_stream = ov08d10_set_stream, }; static const struct v4l2_subdev_pad_ops ov08d10_pad_ops = { .set_fmt = ov08d10_set_format, .get_fmt = ov08d10_get_format, .enum_mbus_code = ov08d10_enum_mbus_code, .enum_frame_size = ov08d10_enum_frame_size, }; static const struct v4l2_subdev_ops ov08d10_subdev_ops = { .video = &ov08d10_video_ops, .pad = &ov08d10_pad_ops, }; static const struct v4l2_subdev_internal_ops ov08d10_internal_ops = { .open = ov08d10_open, }; static int ov08d10_identify_module(struct ov08d10 *ov08d10) { struct i2c_client *client = v4l2_get_subdevdata(&ov08d10->sd); u32 val; u16 chip_id; int ret; /* System control registers */ ret = i2c_smbus_write_byte_data(client, OV08D10_REG_PAGE, 0x00); if (ret < 0) return ret; /* Validate the chip ID */ ret = i2c_smbus_read_byte_data(client, OV08D10_REG_CHIP_ID_0); if (ret < 0) return ret; val = ret << 8; ret = i2c_smbus_read_byte_data(client, OV08D10_REG_CHIP_ID_1); if (ret < 0) return ret; chip_id = val | ret; if ((chip_id & OV08D10_ID_MASK) != OV08D10_CHIP_ID) { dev_err(&client->dev, "unexpected sensor id(0x%04x)\n", chip_id); return -EINVAL; } return 0; } static int ov08d10_get_hwcfg(struct ov08d10 *ov08d10, struct device *dev) { struct fwnode_handle *ep; struct fwnode_handle *fwnode = dev_fwnode(dev); struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_CSI2_DPHY }; u32 xvclk_rate; unsigned int i, j; int ret; if (!fwnode) return -ENXIO; ret = fwnode_property_read_u32(fwnode, "clock-frequency", &xvclk_rate); if (ret) return ret; if (xvclk_rate != OV08D10_XVCLK_19_2) dev_warn(dev, "external clock rate %u is unsupported", xvclk_rate); ep = fwnode_graph_get_next_endpoint(fwnode, NULL); if (!ep) return -ENXIO; ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); fwnode_handle_put(ep); if (ret) return ret; /* Get number of data lanes */ if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) { dev_err(dev, "number of CSI2 data lanes %d is not supported", bus_cfg.bus.mipi_csi2.num_data_lanes); ret = -EINVAL; goto check_hwcfg_error; } dev_dbg(dev, "Using %u data lanes\n", ov08d10->cur_mode->data_lanes); ov08d10->priv_lane = &lane_cfg_2; ov08d10->modes_size = ov08d10_modes_num(ov08d10); if (!bus_cfg.nr_of_link_frequencies) { dev_err(dev, "no link frequencies defined"); ret = -EINVAL; goto check_hwcfg_error; } for (i = 0; i < ARRAY_SIZE(ov08d10->priv_lane->link_freq_menu); i++) { for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) { if (ov08d10->priv_lane->link_freq_menu[i] == bus_cfg.link_frequencies[j]) break; } if (j == bus_cfg.nr_of_link_frequencies) { dev_err(dev, "no link frequency %lld supported", ov08d10->priv_lane->link_freq_menu[i]); ret = -EINVAL; goto check_hwcfg_error; } } check_hwcfg_error: v4l2_fwnode_endpoint_free(&bus_cfg); return ret; } static void ov08d10_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov08d10 *ov08d10 = to_ov08d10(sd); v4l2_async_unregister_subdev(sd); media_entity_cleanup(&sd->entity); v4l2_ctrl_handler_free(sd->ctrl_handler); pm_runtime_disable(&client->dev); mutex_destroy(&ov08d10->mutex); } static int ov08d10_probe(struct i2c_client *client) { struct ov08d10 *ov08d10; int ret; ov08d10 = devm_kzalloc(&client->dev, sizeof(*ov08d10), GFP_KERNEL); if (!ov08d10) return -ENOMEM; ret = ov08d10_get_hwcfg(ov08d10, &client->dev); if (ret) { dev_err(&client->dev, "failed to get HW configuration: %d", ret); return ret; } v4l2_i2c_subdev_init(&ov08d10->sd, client, &ov08d10_subdev_ops); ret = ov08d10_identify_module(ov08d10); if (ret) { dev_err(&client->dev, "failed to find sensor: %d", ret); return ret; } mutex_init(&ov08d10->mutex); ov08d10->cur_mode = &ov08d10->priv_lane->sp_modes[0]; ret = ov08d10_init_controls(ov08d10); if (ret) { dev_err(&client->dev, "failed to init controls: %d", ret); goto probe_error_v4l2_ctrl_handler_free; } ov08d10->sd.internal_ops = &ov08d10_internal_ops; ov08d10->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; ov08d10->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; ov08d10->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&ov08d10->sd.entity, 1, &ov08d10->pad); if (ret) { dev_err(&client->dev, "failed to init entity pads: %d", ret); goto probe_error_v4l2_ctrl_handler_free; } ret = v4l2_async_register_subdev_sensor(&ov08d10->sd); if (ret < 0) { dev_err(&client->dev, "failed to register V4L2 subdev: %d", ret); goto probe_error_media_entity_cleanup; } /* * 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); pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); return 0; probe_error_media_entity_cleanup: media_entity_cleanup(&ov08d10->sd.entity); probe_error_v4l2_ctrl_handler_free: v4l2_ctrl_handler_free(ov08d10->sd.ctrl_handler); mutex_destroy(&ov08d10->mutex); return ret; } #ifdef CONFIG_ACPI static const struct acpi_device_id ov08d10_acpi_ids[] = { { "OVTI08D1" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(acpi, ov08d10_acpi_ids); #endif static struct i2c_driver ov08d10_i2c_driver = { .driver = { .name = "ov08d10", .acpi_match_table = ACPI_PTR(ov08d10_acpi_ids), }, .probe = ov08d10_probe, .remove = ov08d10_remove, }; module_i2c_driver(ov08d10_i2c_driver); MODULE_AUTHOR("Su, Jimmy "); MODULE_DESCRIPTION("OmniVision ov08d10 sensor driver"); MODULE_LICENSE("GPL v2");