diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c index 4a5e0e5f49417d5f131ff17826804c2d8f0a01e9..58eb62f1ba214449d72a8f06b09e2f21c1eb47c4 100644 --- a/drivers/media/i2c/mt9v032.c +++ b/drivers/media/i2c/mt9v032.c @@ -132,9 +132,16 @@ #define MT9V032_TEST_PATTERN_GRAY_DIAGONAL (3 << 11) #define MT9V032_TEST_PATTERN_ENABLE (1 << 13) #define MT9V032_TEST_PATTERN_FLIP (1 << 14) +#define MT9V032_AEGC_DESIRED_BIN 0xa5 +#define MT9V032_AEC_UPDATE_FREQUENCY 0xa6 +#define MT9V032_AEC_LPF 0xa8 +#define MT9V032_AGC_UPDATE_FREQUENCY 0xa9 +#define MT9V032_AGC_LPF 0xaa #define MT9V032_AEC_AGC_ENABLE 0xaf #define MT9V032_AEC_ENABLE (1 << 0) #define MT9V032_AGC_ENABLE (1 << 1) +#define MT9V034_AEC_MAX_SHUTTER_WIDTH 0xad +#define MT9V032_AEC_MAX_SHUTTER_WIDTH 0xbd #define MT9V032_THERMAL_INFO 0xc1 enum mt9v032_model { @@ -161,6 +168,8 @@ struct mt9v032_model_data { unsigned int min_shutter; unsigned int max_shutter; unsigned int pclk_reg; + unsigned int aec_max_shutter_reg; + const struct v4l2_ctrl_config * const aec_max_shutter_v4l2_ctrl; }; struct mt9v032_model_info { @@ -174,63 +183,6 @@ static const struct mt9v032_model_version mt9v032_versions[] = { { MT9V034_CHIP_ID_REV1, "MT9V024/MT9V034 rev1" }, }; -static const struct mt9v032_model_data mt9v032_model_data[] = { - { - /* MT9V022, MT9V032 revisions 1/2/3 */ - .min_row_time = 660, - .min_hblank = MT9V032_HORIZONTAL_BLANKING_MIN, - .min_vblank = MT9V032_VERTICAL_BLANKING_MIN, - .max_vblank = MT9V032_VERTICAL_BLANKING_MAX, - .min_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MIN, - .max_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MAX, - .pclk_reg = MT9V032_PIXEL_CLOCK, - }, { - /* MT9V024, MT9V034 */ - .min_row_time = 690, - .min_hblank = MT9V034_HORIZONTAL_BLANKING_MIN, - .min_vblank = MT9V034_VERTICAL_BLANKING_MIN, - .max_vblank = MT9V034_VERTICAL_BLANKING_MAX, - .min_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MIN, - .max_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MAX, - .pclk_reg = MT9V034_PIXEL_CLOCK, - }, -}; - -static const struct mt9v032_model_info mt9v032_models[] = { - [MT9V032_MODEL_V022_COLOR] = { - .data = &mt9v032_model_data[0], - .color = true, - }, - [MT9V032_MODEL_V022_MONO] = { - .data = &mt9v032_model_data[0], - .color = false, - }, - [MT9V032_MODEL_V024_COLOR] = { - .data = &mt9v032_model_data[1], - .color = true, - }, - [MT9V032_MODEL_V024_MONO] = { - .data = &mt9v032_model_data[1], - .color = false, - }, - [MT9V032_MODEL_V032_COLOR] = { - .data = &mt9v032_model_data[0], - .color = true, - }, - [MT9V032_MODEL_V032_MONO] = { - .data = &mt9v032_model_data[0], - .color = false, - }, - [MT9V032_MODEL_V034_COLOR] = { - .data = &mt9v032_model_data[1], - .color = true, - }, - [MT9V032_MODEL_V034_MONO] = { - .data = &mt9v032_model_data[1], - .color = false, - }, -}; - struct mt9v032 { struct v4l2_subdev subdev; struct media_pad pad; @@ -646,6 +598,34 @@ static int mt9v032_set_selection(struct v4l2_subdev *subdev, */ #define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_BASE | 0x1001) +/* + * Value between 1 and 64 to set the desired bin. This is effectively a measure + * of how bright the image is supposed to be. Both AGC and AEC try to reach + * this. + */ +#define V4L2_CID_AEGC_DESIRED_BIN (V4L2_CID_USER_BASE | 0x1002) +/* + * LPF is the low pass filter capability of the chip. Both AEC and AGC have + * this setting. This limits the speed in which AGC/AEC adjust their settings. + * Possible values are 0-2. 0 means no LPF. For 1 and 2 this equation is used: + * + * if |(calculated new exp - current exp)| > (current exp / 4) + * next exp = calculated new exp + * else + * next exp = current exp + ((calculated new exp - current exp) / 2^LPF) + */ +#define V4L2_CID_AEC_LPF (V4L2_CID_USER_BASE | 0x1003) +#define V4L2_CID_AGC_LPF (V4L2_CID_USER_BASE | 0x1004) +/* + * Value between 0 and 15. This is the number of frames being skipped before + * updating the auto exposure/gain. + */ +#define V4L2_CID_AEC_UPDATE_INTERVAL (V4L2_CID_USER_BASE | 0x1005) +#define V4L2_CID_AGC_UPDATE_INTERVAL (V4L2_CID_USER_BASE | 0x1006) +/* + * Maximum shutter width used for AEC. + */ +#define V4L2_CID_AEC_MAX_SHUTTER_WIDTH (V4L2_CID_USER_BASE | 0x1007) static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl) { @@ -715,6 +695,28 @@ static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl) break; } return regmap_write(map, MT9V032_TEST_PATTERN, data); + + case V4L2_CID_AEGC_DESIRED_BIN: + return regmap_write(map, MT9V032_AEGC_DESIRED_BIN, ctrl->val); + + case V4L2_CID_AEC_LPF: + return regmap_write(map, MT9V032_AEC_LPF, ctrl->val); + + case V4L2_CID_AGC_LPF: + return regmap_write(map, MT9V032_AGC_LPF, ctrl->val); + + case V4L2_CID_AEC_UPDATE_INTERVAL: + return regmap_write(map, MT9V032_AEC_UPDATE_FREQUENCY, + ctrl->val); + + case V4L2_CID_AGC_UPDATE_INTERVAL: + return regmap_write(map, MT9V032_AGC_UPDATE_FREQUENCY, + ctrl->val); + + case V4L2_CID_AEC_MAX_SHUTTER_WIDTH: + return regmap_write(map, + mt9v032->model->data->aec_max_shutter_reg, + ctrl->val); } return 0; @@ -744,6 +746,84 @@ static const struct v4l2_ctrl_config mt9v032_test_pattern_color = { .flags = 0, }; +static const struct v4l2_ctrl_config mt9v032_aegc_controls[] = { + { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AEGC_DESIRED_BIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AEC/AGC Desired Bin", + .min = 1, + .max = 64, + .step = 1, + .def = 58, + .flags = 0, + }, { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AEC_LPF, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AEC Low Pass Filter", + .min = 0, + .max = 2, + .step = 1, + .def = 0, + .flags = 0, + }, { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AGC_LPF, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AGC Low Pass Filter", + .min = 0, + .max = 2, + .step = 1, + .def = 2, + .flags = 0, + }, { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AEC_UPDATE_INTERVAL, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AEC Update Interval", + .min = 0, + .max = 16, + .step = 1, + .def = 2, + .flags = 0, + }, { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AGC_UPDATE_INTERVAL, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AGC Update Interval", + .min = 0, + .max = 16, + .step = 1, + .def = 2, + .flags = 0, + } +}; + +static const struct v4l2_ctrl_config mt9v032_aec_max_shutter_width = { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AEC_MAX_SHUTTER_WIDTH, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AEC Max Shutter Width", + .min = 1, + .max = 2047, + .step = 1, + .def = 480, + .flags = 0, +}; + +static const struct v4l2_ctrl_config mt9v034_aec_max_shutter_width = { + .ops = &mt9v032_ctrl_ops, + .id = V4L2_CID_AEC_MAX_SHUTTER_WIDTH, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "AEC Max Shutter Width", + .min = 1, + .max = 32765, + .step = 1, + .def = 480, + .flags = 0, +}; + /* ----------------------------------------------------------------------------- * V4L2 subdev core operations */ @@ -978,7 +1058,8 @@ static int mt9v032_probe(struct i2c_client *client, mt9v032->pdata = pdata; mt9v032->model = (const void *)did->driver_data; - v4l2_ctrl_handler_init(&mt9v032->ctrls, 10); + v4l2_ctrl_handler_init(&mt9v032->ctrls, 11 + + ARRAY_SIZE(mt9v032_aegc_controls)); v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); @@ -1007,6 +1088,13 @@ static int mt9v032_probe(struct i2c_client *client, mt9v032->test_pattern_color = v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_test_pattern_color, NULL); + v4l2_ctrl_new_custom(&mt9v032->ctrls, + mt9v032->model->data->aec_max_shutter_v4l2_ctrl, + NULL); + for (i = 0; i < ARRAY_SIZE(mt9v032_aegc_controls); ++i) + v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_aegc_controls[i], + NULL); + v4l2_ctrl_cluster(2, &mt9v032->test_pattern); mt9v032->pixel_rate = @@ -1095,6 +1183,67 @@ static int mt9v032_remove(struct i2c_client *client) return 0; } +static const struct mt9v032_model_data mt9v032_model_data[] = { + { + /* MT9V022, MT9V032 revisions 1/2/3 */ + .min_row_time = 660, + .min_hblank = MT9V032_HORIZONTAL_BLANKING_MIN, + .min_vblank = MT9V032_VERTICAL_BLANKING_MIN, + .max_vblank = MT9V032_VERTICAL_BLANKING_MAX, + .min_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MIN, + .max_shutter = MT9V032_TOTAL_SHUTTER_WIDTH_MAX, + .pclk_reg = MT9V032_PIXEL_CLOCK, + .aec_max_shutter_reg = MT9V032_AEC_MAX_SHUTTER_WIDTH, + .aec_max_shutter_v4l2_ctrl = &mt9v032_aec_max_shutter_width, + }, { + /* MT9V024, MT9V034 */ + .min_row_time = 690, + .min_hblank = MT9V034_HORIZONTAL_BLANKING_MIN, + .min_vblank = MT9V034_VERTICAL_BLANKING_MIN, + .max_vblank = MT9V034_VERTICAL_BLANKING_MAX, + .min_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MIN, + .max_shutter = MT9V034_TOTAL_SHUTTER_WIDTH_MAX, + .pclk_reg = MT9V034_PIXEL_CLOCK, + .aec_max_shutter_reg = MT9V034_AEC_MAX_SHUTTER_WIDTH, + .aec_max_shutter_v4l2_ctrl = &mt9v034_aec_max_shutter_width, + }, +}; + +static const struct mt9v032_model_info mt9v032_models[] = { + [MT9V032_MODEL_V022_COLOR] = { + .data = &mt9v032_model_data[0], + .color = true, + }, + [MT9V032_MODEL_V022_MONO] = { + .data = &mt9v032_model_data[0], + .color = false, + }, + [MT9V032_MODEL_V024_COLOR] = { + .data = &mt9v032_model_data[1], + .color = true, + }, + [MT9V032_MODEL_V024_MONO] = { + .data = &mt9v032_model_data[1], + .color = false, + }, + [MT9V032_MODEL_V032_COLOR] = { + .data = &mt9v032_model_data[0], + .color = true, + }, + [MT9V032_MODEL_V032_MONO] = { + .data = &mt9v032_model_data[0], + .color = false, + }, + [MT9V032_MODEL_V034_COLOR] = { + .data = &mt9v032_model_data[1], + .color = true, + }, + [MT9V032_MODEL_V034_MONO] = { + .data = &mt9v032_model_data[1], + .color = false, + }, +}; + static const struct i2c_device_id mt9v032_id[] = { { "mt9v022", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V022_COLOR] }, { "mt9v022m", (kernel_ulong_t)&mt9v032_models[MT9V032_MODEL_V022_MONO] },