[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>

diff --git a/drivers/media/video/m5mols/m5mols.h b/drivers/media/video/m5mols/m5mols.h
index b7834654dc6cc6744afaf97558fc46dee1e71189..00f8d3162bdc98ebae1fc75bb81cda30c805830f 100644 (file)
--- a/drivers/media/video/m5mols/m5mols.h
+++ b/drivers/media/video/m5mols/m5mols.h
@@ -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;

diff --git a/drivers/media/video/m5mols/m5mols_controls.c b/drivers/media/video/m5mols/m5mols_controls.c
index ebc3a904b960180024e9666bb78cf2b3964f693c..1c3b1e0a7bbaa8d549997a888b77978608b03d0c 100644 (file)
--- a/drivers/media/video/m5mols/m5mols_controls.c
+++ b/drivers/media/video/m5mols/m5mols_controls.c
@@ -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);

diff --git a/drivers/media/video/m5mols/m5mols_reg.h b/drivers/media/video/m5mols/m5mols_reg.h
index ae4aced0f9b23b0789c69647f2810c9cf98426a7..14d4be72aeff67b09c9dafc98416490b1acc3412 100644 (file)
--- a/drivers/media/video/m5mols/m5mols_reg.h
+++ b/drivers/media/video/m5mols/m5mols_reg.h
@@ -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