diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2012-05-08 13:56:35 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-05-14 21:33:24 +0400 |
| commit | d7a87e4cc39f7ee4f6d1a1a8b8fffc10a7b0c1e9 (patch) | |
| tree | f159ed301587ba2f55ec02bda4dcce16f477bc26 /drivers/media/video | |
| parent | 44b153ca639f7299a94c27fc48708bbbeccf5050 (diff) | |
| download | linux-d7a87e4cc39f7ee4f6d1a1a8b8fffc10a7b0c1e9.tar.xz | |
[media] m5mols: Add auto and preset white balance control
Replace the V4L2_CID_AUTO_WHITE_BALANCE control with its extended
version - V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE so the white balance
presets feature is exposed to user land.
Acked-by: HeungJun Kim <riverful.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
| -rw-r--r-- | drivers/media/video/m5mols/m5mols.h | 4 | ||||
| -rw-r--r-- | drivers/media/video/m5mols/m5mols_controls.c | 47 |
2 files changed, 39 insertions, 12 deletions
diff --git a/drivers/media/video/m5mols/m5mols.h b/drivers/media/video/m5mols/m5mols.h index 598bb0fe6036..fa1f2c145852 100644 --- a/drivers/media/video/m5mols/m5mols.h +++ b/drivers/media/video/m5mols/m5mols.h @@ -164,7 +164,7 @@ struct m5mols_version { * @exposure: manual exposure control * @auto_iso: auto/manual ISO sensitivity control * @iso: manual ISO sensitivity control - * @autowb: Auto White Balance control + * @auto_wb: auto white balance control * @colorfx: color effect control * @saturation: saturation control * @zoom: zoom control @@ -200,8 +200,8 @@ struct m5mols_info { struct v4l2_ctrl *auto_iso; struct v4l2_ctrl *iso; }; - struct v4l2_ctrl *auto_wb; + struct v4l2_ctrl *colorfx; struct v4l2_ctrl *saturation; struct v4l2_ctrl *zoom; diff --git a/drivers/media/video/m5mols/m5mols_controls.c b/drivers/media/video/m5mols/m5mols_controls.c index f1c88507de4b..1ab21f0afa8a 100644 --- a/drivers/media/video/m5mols/m5mols_controls.c +++ b/drivers/media/video/m5mols/m5mols_controls.c @@ -256,16 +256,42 @@ static int m5mols_set_exposure(struct m5mols_info *info, int exposure) return ret; } -static int m5mols_set_white_balance(struct m5mols_info *info, int awb) +static int m5mols_set_white_balance(struct m5mols_info *info, int val) { - int ret; + static const unsigned short wb[][2] = { + { V4L2_WHITE_BALANCE_INCANDESCENT, REG_AWB_INCANDESCENT }, + { V4L2_WHITE_BALANCE_FLUORESCENT, REG_AWB_FLUORESCENT_1 }, + { V4L2_WHITE_BALANCE_FLUORESCENT_H, REG_AWB_FLUORESCENT_2 }, + { V4L2_WHITE_BALANCE_HORIZON, REG_AWB_HORIZON }, + { V4L2_WHITE_BALANCE_DAYLIGHT, REG_AWB_DAYLIGHT }, + { V4L2_WHITE_BALANCE_FLASH, REG_AWB_LEDLIGHT }, + { V4L2_WHITE_BALANCE_CLOUDY, REG_AWB_CLOUDY }, + { V4L2_WHITE_BALANCE_SHADE, REG_AWB_SHADE }, + { V4L2_WHITE_BALANCE_AUTO, REG_AWB_AUTO }, + }; + int i; + struct v4l2_subdev *sd = &info->sd; + int ret = -EINVAL; - ret = m5mols_lock_awb(info, !awb); - if (ret < 0) - return ret; + for (i = 0; i < ARRAY_SIZE(wb); i++) { + int awb; + if (wb[i][0] != val) + continue; + + v4l2_dbg(1, m5mols_debug, sd, + "Setting white balance to: %#x\n", wb[i][0]); - return m5mols_write(&info->sd, AWB_MODE, awb ? REG_AWB_AUTO : - REG_AWB_PRESET); + awb = wb[i][0] == V4L2_WHITE_BALANCE_AUTO; + ret = m5mols_write(sd, AWB_MODE, awb ? REG_AWB_AUTO : + REG_AWB_PRESET); + if (ret < 0) + return ret; + + if (!awb) + ret = m5mols_write(sd, AWB_MANUAL, wb[i][1]); + } + + return ret; } static int m5mols_set_saturation(struct m5mols_info *info, int val) @@ -391,7 +417,7 @@ static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl) ret = m5mols_set_iso(info, ctrl->val); break; - case V4L2_CID_AUTO_WHITE_BALANCE: + case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: ret = m5mols_set_white_balance(info, ctrl->val); break; @@ -437,8 +463,9 @@ int m5mols_init_controls(struct v4l2_subdev *sd) v4l2_ctrl_handler_init(&info->handle, 6); - info->auto_wb = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops, - V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); + info->auto_wb = v4l2_ctrl_new_std_menu(&info->handle, + &m5mols_ctrl_ops, V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, + 9, ~0x3fe, V4L2_WHITE_BALANCE_AUTO); info->auto_exposure = v4l2_ctrl_new_std_menu(&info->handle, &m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, |