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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2008-12-18 11:29:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:40:18 -0200 |
| commit | 39bf372f606448de2df93a90f40efc613cb5c909 (patch) | |
| tree | dea2dc72b87cfe5cfa26199364da5c1941b085d5 /drivers/media/video/mt9m111.c | |
| parent | bd73b36f0c41b0c02ef4b10a307db1c43537e006 (diff) | |
| download | linux-39bf372f606448de2df93a90f40efc613cb5c909.tar.gz linux-39bf372f606448de2df93a90f40efc613cb5c909.tar.bz2 linux-39bf372f606448de2df93a90f40efc613cb5c909.zip | |
V4L/DVB (10073): mt9m111: Add automatic white balance control
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/mt9m111.c')
| -rw-r--r-- | drivers/media/video/mt9m111.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c index b0e6046ea967..2ab1e0f4925d 100644 --- a/drivers/media/video/mt9m111.c +++ b/drivers/media/video/mt9m111.c @@ -90,7 +90,7 @@ #define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b #define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14) - +#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1) #define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14) #define MT9M111_OUTFMT_BYPASS_IFP (1 << 10) @@ -163,6 +163,7 @@ struct mt9m111 { unsigned int swap_rgb_red_blue:1; unsigned int swap_yuv_y_chromas:1; unsigned int swap_yuv_cb_cr:1; + unsigned int autowhitebalance:1; }; static int reg_page_map_set(struct i2c_client *client, const u16 reg) @@ -702,6 +703,23 @@ static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on) return ret; } + +static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on) +{ + struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd); + int ret; + + if (on) + ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); + else + ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); + + if (!ret) + mt9m111->autowhitebalance = on; + + return ret; +} + static int mt9m111_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl) { @@ -738,6 +756,9 @@ static int mt9m111_get_control(struct soc_camera_device *icd, case V4L2_CID_EXPOSURE_AUTO: ctrl->value = mt9m111->autoexposure; break; + case V4L2_CID_AUTO_WHITE_BALANCE: + ctrl->value = mt9m111->autowhitebalance; + break; } return 0; } @@ -771,6 +792,9 @@ static int mt9m111_set_control(struct soc_camera_device *icd, case V4L2_CID_EXPOSURE_AUTO: ret = mt9m111_set_autoexposure(icd, ctrl->value); break; + case V4L2_CID_AUTO_WHITE_BALANCE: + ret = mt9m111_set_autowhitebalance(icd, ctrl->value); + break; default: ret = -EINVAL; } @@ -789,6 +813,7 @@ static int mt9m111_restore_state(struct soc_camera_device *icd) mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS); mt9m111_set_global_gain(icd, icd->gain); mt9m111_set_autoexposure(icd, mt9m111->autoexposure); + mt9m111_set_autowhitebalance(icd, mt9m111->autowhitebalance); return 0; } @@ -883,6 +908,7 @@ static int mt9m111_video_probe(struct soc_camera_device *icd) goto eisis; mt9m111->autoexposure = 1; + mt9m111->autowhitebalance = 1; mt9m111->swap_rgb_even_odd = 1; mt9m111->swap_rgb_red_blue = 1; |