[PATCH v6 01/12] v4l: Add Intel IPU3 meta buffer formats

[Yong Zhi]

Add IPU3-specific meta formats for parameter
processing and 3A statistics:

  V4L2_META_FMT_IPU3_PARAMS
  V4L2_META_FMT_IPU3_STAT_3A

Signed-off-by: Yong Zhi <yong....@intel.com>
---
 drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++
 include/uapi/linux/videodev2.h       | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c 
b/drivers/media/v4l2-core/v4l2-ioctl.c
index ec98b93b2a55..5360b3915af7 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1257,6 +1257,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
        case V4L2_META_FMT_VSP1_HGO:    descr = "R-Car VSP1 1-D Histogram"; 
break;
        case V4L2_META_FMT_VSP1_HGT:    descr = "R-Car VSP1 2-D Histogram"; 
break;
        case V4L2_META_FMT_UVC:         descr = "UVC payload header metadata"; 
break;
+       case V4L2_META_FMT_IPU3_PARAMS: descr = "IPU3 processing parameters"; 
break;
+       case V4L2_META_FMT_IPU3_STAT_3A:        descr = "IPU3 3A statistics"; 
break;
 
        default:
                /* Compressed formats */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index e20d10df75c1..83ef5a0fbdc2 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -698,6 +698,10 @@ struct v4l2_pix_format {
 #define V4L2_META_FMT_VSP1_HGT    v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car 
VSP1 2-D Histogram */
 #define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC 
Payload Header metadata */
 
+/* Vendor specific - used for IPU3 camera sub-system */
+#define V4L2_META_FMT_IPU3_PARAMS      v4l2_fourcc('i', 'p', '3', 'p') /* IPU3 
params */
+#define V4L2_META_FMT_IPU3_STAT_3A     v4l2_fourcc('i', 'p', '3', 's') /* IPU3 
3A statistics */
+
 /* priv field value to indicates that subsequent fields are valid. */
 #define V4L2_PIX_FMT_PRIV_MAGIC                0xfeedcafe
 
-- 
2.7.4