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Subject[PATCH v5 1/5] v4l: Add new Colorimetry Class
Date
Add Colorimetry control class for colorimetry controls

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 7 ++++++-
include/uapi/linux/v4l2-controls.h | 4 ++++
2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 016cf6204cbb..335cf354f51b 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1201,6 +1201,10 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_STATELESS_H264_SLICE_PARAMS: return "H264 Slice Parameters";
case V4L2_CID_STATELESS_H264_DECODE_PARAMS: return "H264 Decode Parameters";
case V4L2_CID_STATELESS_FWHT_PARAMS: return "FWHT Stateless Parameters";
+
+ /* Colorimetry controls */
+ /* Keep the order of the 'case's the same as in v4l2-controls.h! */
+ case V4L2_CID_COLORIMETRY_CLASS: return "Colorimetry Controls";
default:
return NULL;
}
@@ -1389,8 +1393,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_RF_TUNER_CLASS:
case V4L2_CID_DETECT_CLASS:
case V4L2_CID_CODEC_STATELESS_CLASS:
+ case V4L2_CID_COLORIMETRY_CLASS:
*type = V4L2_CTRL_TYPE_CTRL_CLASS;
- /* You can neither read not write these */
+ /* You can neither read nor write these */
*flags |= V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY;
*min = *max = *step = *def = 0;
break;
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 039c0d7add1b..a41039559193 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -66,6 +66,7 @@
#define V4L2_CTRL_CLASS_RF_TUNER 0x00a20000 /* RF tuner controls */
#define V4L2_CTRL_CLASS_DETECT 0x00a30000 /* Detection controls */
#define V4L2_CTRL_CLASS_CODEC_STATELESS 0x00a40000 /* Stateless codecs controls */
+#define V4L2_CTRL_CLASS_COLORIMETRY 0x00a50000 /* Colorimetry controls */

/* User-class control IDs */

@@ -1657,6 +1658,9 @@ struct v4l2_ctrl_fwht_params {
__u32 quantization;
};

+#define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900)
+#define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1)
+
/* MPEG-compression definitions kept for backwards compatibility */
#ifndef __KERNEL__
#define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC
--
2.25.1
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