diff options
Diffstat (limited to 'drivers/media/i2c/soc_camera/mt9v022.c')
| -rw-r--r-- | drivers/media/i2c/soc_camera/mt9v022.c | 49 |
1 files changed, 45 insertions, 4 deletions
diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c index 13057b966ee9..a5210e4d67af 100644 --- a/drivers/media/i2c/soc_camera/mt9v022.c +++ b/drivers/media/i2c/soc_camera/mt9v022.c @@ -71,6 +71,13 @@ MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\""); #define MT9V022_COLUMN_SKIP 1 #define MT9V022_ROW_SKIP 4 +#define MT9V022_HORIZONTAL_BLANKING_MIN 43 +#define MT9V022_HORIZONTAL_BLANKING_MAX 1023 +#define MT9V022_HORIZONTAL_BLANKING_DEF 94 +#define MT9V022_VERTICAL_BLANKING_MIN 2 +#define MT9V022_VERTICAL_BLANKING_MAX 3000 +#define MT9V022_VERTICAL_BLANKING_DEF 45 + #define is_mt9v024(id) (id == 0x1324) /* MT9V022 has only one fixed colorspace per pixelcode */ @@ -136,6 +143,8 @@ struct mt9v022 { struct v4l2_ctrl *autogain; struct v4l2_ctrl *gain; }; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *vblank; struct v4l2_rect rect; /* Sensor window */ const struct mt9v022_datafmt *fmt; const struct mt9v022_datafmt *fmts; @@ -277,11 +286,10 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a) * Default 94, Phytec driver says: * "width + horizontal blank >= 660" */ - ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING, - rect.width > 660 - 43 ? 43 : - 660 - rect.width); + ret = v4l2_ctrl_s_ctrl(mt9v022->hblank, + rect.width > 660 - 43 ? 43 : 660 - rect.width); if (!ret) - ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45); + ret = v4l2_ctrl_s_ctrl(mt9v022->vblank, 45); if (!ret) ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width); if (!ret) @@ -504,6 +512,18 @@ static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl) range = exp->maximum - exp->minimum; exp->val = ((data - 1) * range + 239) / 479 + exp->minimum; return 0; + case V4L2_CID_HBLANK: + data = reg_read(client, MT9V022_HORIZONTAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; + case V4L2_CID_VBLANK: + data = reg_read(client, MT9V022_VERTICAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; } return -EINVAL; } @@ -585,6 +605,16 @@ static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl) return -EIO; } return 0; + case V4L2_CID_HBLANK: + if (reg_write(client, MT9V022_HORIZONTAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; + case V4L2_CID_VBLANK: + if (reg_write(client, MT9V022_VERTICAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; } return -EINVAL; } @@ -852,10 +882,21 @@ static int mt9v022_probe(struct i2c_client *client, mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE, 1, 255, 1, 255); + mt9v022->hblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_HBLANK, MT9V022_HORIZONTAL_BLANKING_MIN, + MT9V022_HORIZONTAL_BLANKING_MAX, 1, + MT9V022_HORIZONTAL_BLANKING_DEF); + + mt9v022->vblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_VBLANK, MT9V022_VERTICAL_BLANKING_MIN, + MT9V022_VERTICAL_BLANKING_MAX, 1, + MT9V022_VERTICAL_BLANKING_DEF); + mt9v022->subdev.ctrl_handler = &mt9v022->hdl; if (mt9v022->hdl.error) { int err = mt9v022->hdl.error; + dev_err(&client->dev, "control initialisation err %d\n", err); kfree(mt9v022); return err; } |