diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c index 8fadccfbc1c6..326e232672c3 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c @@ -115,6 +115,16 @@ static int ov2680_set_hflip(struct ov2680_device *sensor, s32 val) return 0; } +static int ov2680_exposure_set(struct ov2680_device *sensor, u32 exp) +{ + return ov_write_reg24(sensor->client, OV2680_REG_EXPOSURE_PK_HIGH, exp << 4); +} + +static int ov2680_gain_set(struct ov2680_device *sensor, u32 gain) +{ + return ov_write_reg16(sensor->client, OV2680_REG_GAIN_PK, gain); +} + static int ov2680_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sd(ctrl); @@ -133,6 +143,12 @@ static int ov2680_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_HFLIP: ret = ov2680_set_hflip(sensor, ctrl->val); break; + case V4L2_CID_EXPOSURE: + ret = ov2680_exposure_set(sensor, ctrl->val); + break; + case V4L2_CID_GAIN: + ret = ov2680_gain_set(sensor, ctrl->val); + break; default: ret = -EINVAL; } @@ -385,10 +401,7 @@ static int ov2680_set_fmt(struct v4l2_subdev *sd, goto err; } - /* - * recall flip functions to avoid flip registers - * were overridden by default setting - */ + /* Restore value of all ctrls */ ret = __v4l2_ctrl_handler_setup(&dev->ctrls.handler); if (ret < 0) goto err; @@ -627,13 +640,17 @@ static int ov2680_init_controls(struct ov2680_device *sensor) const struct v4l2_ctrl_ops *ops = &ov2680_ctrl_ops; struct ov2680_ctrls *ctrls = &sensor->ctrls; struct v4l2_ctrl_handler *hdl = &ctrls->handler; + int exp_max = sensor->res->lines_per_frame - OV2680_INTEGRATION_TIME_MARGIN; - v4l2_ctrl_handler_init(hdl, 2); + v4l2_ctrl_handler_init(hdl, 4); hdl->lock = &sensor->input_lock; ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); + ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, + 0, exp_max, 1, exp_max); + ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, 0, 1023, 1, 250); ctrls->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; ctrls->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; diff --git a/drivers/staging/media/atomisp/i2c/ov2680.h b/drivers/staging/media/atomisp/i2c/ov2680.h index 64a03a7c3e19..17cd982bc822 100644 --- a/drivers/staging/media/atomisp/i2c/ov2680.h +++ b/drivers/staging/media/atomisp/i2c/ov2680.h @@ -90,11 +90,8 @@ #define OV2680_GROUP_ACCESS 0x3208 /*Bit[7:4] Group control, Bit[3:0] Group ID*/ -#define OV2680_EXPOSURE_H 0x3500 /*Bit[3:0] Bit[19:16] of exposure, remaining 16 bits lies in Reg0x3501&Reg0x3502*/ -#define OV2680_EXPOSURE_M 0x3501 -#define OV2680_EXPOSURE_L 0x3502 -#define OV2680_AGC_H 0x350A /*Bit[1:0] means Bit[9:8] of gain*/ -#define OV2680_AGC_L 0x350B /*Bit[7:0] of gain*/ +#define OV2680_REG_EXPOSURE_PK_HIGH 0x3500 +#define OV2680_REG_GAIN_PK 0x350a #define OV2680_HORIZONTAL_START_H 0x3800 /*Bit[11:8]*/ #define OV2680_HORIZONTAL_START_L 0x3801 /*Bit[7:0]*/ @@ -172,6 +169,8 @@ struct ov2680_device { struct v4l2_ctrl_handler handler; struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; + struct v4l2_ctrl *exposure; + struct v4l2_ctrl *gain; } ctrls; };