mbox series

[v12,00/11] Implement UVC v1.5 ROI

Message ID 20230817071750.2830271-1-yunkec@google.com
Headers show
Series Implement UVC v1.5 ROI | expand

Message

Yunke Cao Aug. 17, 2023, 7:17 a.m. UTC 
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(-)