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[RFC,v4,6/9] media: uapi: Add V4L2_CID_CONFIG_MODEL control

Message ID 20241220132419.1027206-7-sakari.ailus@linux.intel.com (mailing list archive)
State New
Headers show
Series Sub-device configuration models | expand

Commit Message

Sakari Ailus Dec. 20, 2024, 1:24 p.m. UTC 
Add the V4L2_CID_CONFIG_MODEL control for the configuration model.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 .../userspace-api/media/v4l/ext-ctrls-image-process.rst      | 4 ++++
 drivers/media/v4l2-core/v4l2-ctrls-defs.c                    | 5 +++++
 include/uapi/linux/v4l2-controls.h                           | 3 +++
 3 files changed, 12 insertions(+)
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Patch

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
index 27803dca8d3e..2ae17ed99729 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
@@ -55,3 +55,7 @@  Image Process Control IDs
     control value divided by e.g. 0x100, meaning that to get no
     digital gain the control value needs to be 0x100. The no-gain
     configuration is also typically the default.
+
+``V4L2_CID_CONFIG_MODEL (bitmask)``
+    Which configuration models the sub-device supports. Please see
+    :ref:`media_subdev_config_model`. This is a read-only control.
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
index 1ea52011247a..24c9c25e20d1 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
@@ -1164,6 +1164,7 @@  const char *v4l2_ctrl_get_name(u32 id)
 	case V4L2_CID_TEST_PATTERN:		return "Test Pattern";
 	case V4L2_CID_DEINTERLACING_MODE:	return "Deinterlacing Mode";
 	case V4L2_CID_DIGITAL_GAIN:		return "Digital Gain";
+	case V4L2_CID_CONFIG_MODEL:		return "Sub-device configuration model";
 
 	/* DV controls */
 	/* Keep the order of the 'case's the same as in v4l2-controls.h! */
@@ -1481,6 +1482,10 @@  void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
 	case V4L2_CID_DV_RX_POWER_PRESENT:
 		*type = V4L2_CTRL_TYPE_BITMASK;
 		break;
+	case V4L2_CID_CONFIG_MODEL:
+		*flags |= V4L2_CTRL_FLAG_READ_ONLY;
+		*type = V4L2_CTRL_TYPE_BITMASK;
+		break;
 	case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
 	case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
 		*type = V4L2_CTRL_TYPE_INTEGER;
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 974fd254e573..0152240229ab 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -1225,6 +1225,9 @@  enum v4l2_jpeg_chroma_subsampling {
 #define V4L2_CID_TEST_PATTERN			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 3)
 #define V4L2_CID_DEINTERLACING_MODE		(V4L2_CID_IMAGE_PROC_CLASS_BASE + 4)
 #define V4L2_CID_DIGITAL_GAIN			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 5)
+#define V4L2_CID_CONFIG_MODEL			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 6)
+
+#define V4L2_CID_CONFIG_MODEL_COMMON_RAW	(1ULL << 0)
 
 /*  DV-class control IDs defined by V4L2 */
 #define V4L2_CID_DV_CLASS_BASE			(V4L2_CTRL_CLASS_DV | 0x900)