Add support for the newly defined V4L2_CID_LOCATION read-only control
used to report the camera device mounting position.
Signed-off-by: Jacopo Mondi <jac...@jmondi.org>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 7 +++++++
include/uapi/linux/v4l2-controls.h | 4 ++++
2 files changed, 11 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c
b/drivers/media/v4l2-core/v4l2-ctrls.c
index 7d3a33258748..8ab0857df59a 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -943,6 +943,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_AUTO_FOCUS_RANGE: return "Auto Focus, Range";
case V4L2_CID_PAN_SPEED: return "Pan, Speed";
case V4L2_CID_TILT_SPEED: return "Tilt, Speed";
+ case V4L2_CID_LOCATION: return "Location";
/* FM Radio Modulator controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */
@@ -1300,6 +1301,12 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum
v4l2_ctrl_type *type,
break;
case V4L2_CID_MPEG_VIDEO_FWHT_PARAMS:
*type = V4L2_CTRL_TYPE_FWHT_PARAMS;
+ case V4L2_CID_LOCATION:
+ *type = V4L2_CTRL_TYPE_INTEGER;
+ *flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ *min = V4L2_LOCATION_FRONT;
+ *max = V4L2_LOCATION_BACK;
+ *step = 1;
break;
default:
*type = V4L2_CTRL_TYPE_INTEGER;
diff --git a/include/uapi/linux/v4l2-controls.h
b/include/uapi/linux/v4l2-controls.h
index 37807f23231e..5c4c7b245921 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -889,6 +889,10 @@ enum v4l2_auto_focus_range {
#define V4L2_CID_PAN_SPEED (V4L2_CID_CAMERA_CLASS_BASE+32)
#define V4L2_CID_TILT_SPEED (V4L2_CID_CAMERA_CLASS_BASE+33)
+#define V4L2_CID_LOCATION (V4L2_CID_CAMERA_CLASS_BASE+34)
+#define V4L2_LOCATION_FRONT (0 << 0)
+#define V4L2_LOCATION_BACK (1 << 0)
+
/* FM Modulator class control IDs */
#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
--
2.22.0
