diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-07-23 15:03:34 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-13 16:29:31 -0300 |
| commit | 9ec670e2aad515bbb36c020a6ebdc707ace4f24d (patch) | |
| tree | d734661805139e394b827a06a546a074a9c9f680 /drivers/media/i2c | |
| parent | e9a50e4c2dd8ca871c20480e49125ef67da84722 (diff) | |
[media] mt9v032: Export horizontal and vertical blanking as V4L2 controls
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/mt9v032.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c index bf591b891a74..e2177405dad2 100644 --- a/drivers/media/i2c/mt9v032.c +++ b/drivers/media/i2c/mt9v032.c @@ -52,9 +52,11 @@ #define MT9V032_WINDOW_WIDTH_MAX 752 #define MT9V032_HORIZONTAL_BLANKING 0x05 #define MT9V032_HORIZONTAL_BLANKING_MIN 43 +#define MT9V032_HORIZONTAL_BLANKING_DEF 94 #define MT9V032_HORIZONTAL_BLANKING_MAX 1023 #define MT9V032_VERTICAL_BLANKING 0x06 #define MT9V032_VERTICAL_BLANKING_MIN 4 +#define MT9V032_VERTICAL_BLANKING_DEF 45 #define MT9V032_VERTICAL_BLANKING_MAX 3000 #define MT9V032_CHIP_CONTROL 0x07 #define MT9V032_CHIP_CONTROL_MASTER_MODE (1 << 3) @@ -138,6 +140,7 @@ struct mt9v032 { u32 sysclk; u16 chip_control; u16 aec_agc; + u16 hblank; }; static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd) @@ -195,6 +198,16 @@ mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable) return 0; } +static int +mt9v032_update_hblank(struct mt9v032 *mt9v032) +{ + struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); + struct v4l2_rect *crop = &mt9v032->crop; + + return mt9v032_write(client, MT9V032_HORIZONTAL_BLANKING, + max_t(s32, mt9v032->hblank, 660 - crop->width)); +} + #define EXT_CLK 25000000 static int mt9v032_power_on(struct mt9v032 *mt9v032) @@ -329,8 +342,7 @@ static int mt9v032_s_stream(struct v4l2_subdev *subdev, int enable) if (ret < 0) return ret; - ret = mt9v032_write(client, MT9V032_HORIZONTAL_BLANKING, - max(43, 660 - crop->width)); + ret = mt9v032_update_hblank(mt9v032); if (ret < 0) return ret; @@ -514,6 +526,14 @@ static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl) return mt9v032_write(client, MT9V032_TOTAL_SHUTTER_WIDTH, ctrl->val); + case V4L2_CID_HBLANK: + mt9v032->hblank = ctrl->val; + return mt9v032_update_hblank(mt9v032); + + case V4L2_CID_VBLANK: + return mt9v032_write(client, MT9V032_VERTICAL_BLANKING, + ctrl->val); + case V4L2_CID_PIXEL_RATE: case V4L2_CID_LINK_FREQ: if (mt9v032->link_freq == NULL) @@ -721,7 +741,7 @@ static int mt9v032_probe(struct i2c_client *client, mutex_init(&mt9v032->power_lock); mt9v032->pdata = pdata; - v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 6); + v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 8); v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); @@ -735,6 +755,14 @@ static int mt9v032_probe(struct i2c_client *client, V4L2_CID_EXPOSURE, MT9V032_TOTAL_SHUTTER_WIDTH_MIN, MT9V032_TOTAL_SHUTTER_WIDTH_MAX, 1, MT9V032_TOTAL_SHUTTER_WIDTH_DEF); + v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, + V4L2_CID_HBLANK, MT9V032_HORIZONTAL_BLANKING_MIN, + MT9V032_HORIZONTAL_BLANKING_MAX, 1, + MT9V032_HORIZONTAL_BLANKING_DEF); + v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, + V4L2_CID_VBLANK, MT9V032_VERTICAL_BLANKING_MIN, + MT9V032_VERTICAL_BLANKING_MAX, 1, + MT9V032_VERTICAL_BLANKING_DEF); mt9v032->pixel_rate = v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, @@ -777,6 +805,7 @@ static int mt9v032_probe(struct i2c_client *client, mt9v032->format.colorspace = V4L2_COLORSPACE_SRGB; mt9v032->aec_agc = MT9V032_AEC_ENABLE | MT9V032_AGC_ENABLE; + mt9v032->hblank = MT9V032_HORIZONTAL_BLANKING_DEF; mt9v032->sysclk = MT9V032_SYSCLK_FREQ_DEF; v4l2_i2c_subdev_init(&mt9v032->subdev, client, &mt9v032_subdev_ops); |