[media] v4l: Image processing control class

Add control class for image processing controls. The control class deals
with controls processing image, for example digital gain or noise filtering,
which can be present in any part of the pipeline.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index 7a2f855d4e21..edb2a6a066ca 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -650,6 +650,11 @@ const char *v4l2_ctrl_get_name(u32 id)
         case V4L2_CID_HBLANK:                   return "Horizontal Blanking";
         case V4L2_CID_ANALOGUE_GAIN:            return "Analogue Gain";
 
+        /* Image processing controls */
+        case V4L2_CID_IMAGE_PROC_CLASS:         return "Image Processing Controls";
+        case V4L2_CID_LINK_FREQ:                return "Link Frequency";
+        case V4L2_CID_PIXEL_RATE:               return "Pixel Rate";
+
         default:
                 return NULL;
         }
@@ -741,6 +746,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
         case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
                 *type = V4L2_CTRL_TYPE_MENU;
                 break;
+        case V4L2_CID_LINK_FREQ:
+                *type = V4L2_CTRL_TYPE_INTEGER_MENU;
+                break;
         case V4L2_CID_RDS_TX_PS_NAME:
         case V4L2_CID_RDS_TX_RADIO_TEXT:
                 *type = V4L2_CTRL_TYPE_STRING;
@@ -752,6 +760,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
         case V4L2_CID_FLASH_CLASS:
         case V4L2_CID_JPEG_CLASS:
         case V4L2_CID_IMAGE_SOURCE_CLASS:
+        case V4L2_CID_IMAGE_PROC_CLASS:
                 *type = V4L2_CTRL_TYPE_CTRL_CLASS;
                 /* You can neither read not write these */
                 *flags |= V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY;
@@ -775,8 +784,11 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
                 break;
         case V4L2_CID_MPEG_VIDEO_DEC_FRAME:
         case V4L2_CID_MPEG_VIDEO_DEC_PTS:
+                *flags |= V4L2_CTRL_FLAG_VOLATILE;
+                /* Fall through */
+        case V4L2_CID_PIXEL_RATE:
                 *type = V4L2_CTRL_TYPE_INTEGER64;
-                *flags |= V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_VOLATILE;
+                *flags |= V4L2_CTRL_FLAG_READ_ONLY;
                 *min = *max = *step = *def = 0;
                 break;
         default: