Hi, This patch set implements UVC v1.5 region of interest using V4L2 control API. ROI control is consisted two uvc specific controls. 1. A rectangle control with a newly added type V4L2_CTRL_TYPE_RECT. 2. An auto control with type bitmask. V4L2_CTRL_WHICH_MIN/MAX_VAL is added to support the rectangle control. A patchset in v4l-utils will be sent separately. Tested with v4l2-compliance, v4l2-ctl, calling ioctls on usb cameras and VIVID with a newly added V4L2_CTRL_TYPE_RECT control. 1/11 adds V4L2_CTRL_TYPE_RECT. 2/11, 3/11, 4/11 refactors uvc_ctrl.c. 5/11 adds support for compound controls. 6/11 is a cherry-pick for Hans' implementation of V4L2_CTRL_WHICH_MIN/MAX_VAL in v4l2-core. 7/11 addes the rectangle control in VIVID. 8/11 supports MIN/MAX in UVC. 9/11 implements ROI in UVC. 10/11 initializes ROI control to default value. 11/11 documents the ROI changes. Changes since v11 - Git rid of media: v4l2: document the usage of min/max for V4L2_CTRL_TYPE_RECT. - Added a rectangle control in VIVID. - Addressed comments in 6/11, details in patch. Hans Verkuil (1): v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL Yunke Cao (10): media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT media: uvcvideo: add uvc_ctrl_get_boundary for getting default value media: uvcvideo: introduce __uvc_ctrl_get_std() media: uvcvideo: Split uvc_control_mapping.size to v4l2 and data size media: uvcvideo: Add support for compound controls media: vivid: Add an rectangle control media: uvcvideo: support V4L2_CTRL_WHICH_MIN/MAX_VAL media: uvcvideo: implement UVC v1.5 ROI media: uvcvideo: initilaize ROI control to default value media: uvcvideo: document UVC v1.5 ROI .../userspace-api/media/drivers/uvcvideo.rst | 64 +- .../media/v4l/vidioc-g-ext-ctrls.rst | 20 +- .../media/v4l/vidioc-queryctrl.rst | 14 + .../media/videodev2.h.rst.exceptions | 4 + drivers/media/i2c/imx214.c | 5 +- .../media/platform/qcom/venus/venc_ctrls.c | 9 +- .../media/test-drivers/vivid/vivid-ctrls.c | 34 + drivers/media/usb/uvc/uvc_ctrl.c | 721 ++++++++++++++---- drivers/media/usb/uvc/uvc_v4l2.c | 18 +- drivers/media/usb/uvc/uvcvideo.h | 24 +- drivers/media/v4l2-core/v4l2-ctrls-api.c | 54 +- drivers/media/v4l2-core/v4l2-ctrls-core.c | 176 ++++- drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- include/media/v4l2-ctrls.h | 36 +- include/uapi/linux/usb/video.h | 1 + include/uapi/linux/uvcvideo.h | 13 + include/uapi/linux/v4l2-controls.h | 9 + include/uapi/linux/videodev2.h | 5 + 18 files changed, 1001 insertions(+), 210 deletions(-) -- 2.41.0.694.ge786442a9b-goog
