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[media] m5mols: Add JPEG compression quality control 

Add JPEG compression quality control for snapshot capture.

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>
This commit is contained in:
Sylwester Nawrocki 2012-02-28 06:29:01 -03:00 committed by Mauro Carvalho Chehab
parent 50d3f93e39
commit dd9c471dd3
3 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/video/m5mols/m5mols.h
View File

@ -172,6 +172,7 @@ struct m5mols_version {
* @zoom: zoom control
* @wdr: wide dynamic range control
* @stabilization: image stabilization control
* @jpeg_quality: JPEG compression quality control
* @ver: information of the version
* @cap: the capture mode attributes
* @power: current sensor's power status
@ -213,6 +214,7 @@ struct m5mols_info {
struct v4l2_ctrl *zoom;
struct v4l2_ctrl *wdr;
struct v4l2_ctrl *stabilization;
struct v4l2_ctrl *jpeg_quality;
struct m5mols_version ver;
struct m5mols_capture cap;

10
drivers/media/video/m5mols/m5mols_controls.c
View File

@ -492,6 +492,10 @@ static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl)
case V4L2_CID_IMAGE_STABILIZATION:
ret = m5mols_set_stabilization(info, ctrl->val);
break;
case V4L2_CID_JPEG_COMPRESSION_QUALITY:
ret = m5mols_write(sd, CAPP_JPEG_RATIO, ctrl->val);
break;
}
if (ret == 0 && info->mode != last_mode)
@ -530,8 +534,7 @@ int m5mols_init_controls(struct v4l2_subdev *sd)
return ret;
zoom_step = is_manufacturer(info, REG_SAMSUNG_OPTICS) ? 31 : 1;
v4l2_ctrl_handler_init(&info->handle, 6);
v4l2_ctrl_handler_init(&info->handle, 20);
info->auto_wb = v4l2_ctrl_new_std_menu(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
@ -579,6 +582,9 @@ int m5mols_init_controls(struct v4l2_subdev *sd)
info->stabilization = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops,
V4L2_CID_IMAGE_STABILIZATION, 0, 1, 1, 0);
info->jpeg_quality = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops,
V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, 100, 1, 80);
if (info->handle.error) {
int ret = info->handle.error;
v4l2_err(sd, "Failed to initialize controls: %d\n", ret);

1
drivers/media/video/m5mols/m5mols_reg.h
View File

@ -310,6 +310,7 @@
#define REG_JPEG 0x10
#define CAPP_MAIN_IMAGE_SIZE I2C_REG(CAT_CAPT_PARM, 0x01, 1)
#define CAPP_JPEG_RATIO I2C_REG(CAT_CAPT_PARM, 0x17, 1)
#define CAPP_MCC_MODE I2C_REG(CAT_CAPT_PARM, 0x1d, 1)
#define REG_MCC_OFF 0x00