[PATCH 0/5] Introduce camera subsystem and USB video device

[zhenwei pi]

1, The full picture of this patch set:
   +---------+       +------------+     +---------------+
   |UVC(done)|       |virtio(TODO)|     |other HW device|
   +---------+       +------------+     +---------------+
         |                 |                     |
         |            +------------+             |
         +------------+camera(done)+-------------+
                      +----+-------+
                           |
         +-----------------+---------------------+
         |                 |                     |
  +------+------+     +----+-----+        +------+------+
  |builtin(done)|     |v4l2(done)|        |other drivers|
  +-------------+     +----------+        +-------------+

With this patch set, We can run a desktop VM (Ex Ubuntu-2004), several camera
APPs(cheese, kamoso, guvcview and qcam) work fine.

Some works still in working:
  1, hot-plug
  2, compat with live migration
  3, several actions defined in UVC SPEC

Zhenwei Pi (5):
  camera: Introduce camera subsystem and builtin driver
  camera: v4l2: Introduce v4l2 camera driver
  usb: Introduce video&mescellaneous
  usb: allow max 8192 bytes for desc
  usb-video: Introduce USB video class

 camera/builtin.c        |  717 ++++++++++++++++++++
 camera/camera-int.h     |   19 +
 camera/camera.c         |  522 +++++++++++++++
 camera/meson.build      |   20 +
 camera/trace-events     |   28 +
 camera/trace.h          |    1 +
 camera/v4l2.c           |  637 ++++++++++++++++++
 hw/usb/Kconfig          |    5 +
 hw/usb/desc.c           |   15 +-
 hw/usb/desc.h           |    1 +
 hw/usb/dev-video.c      | 1395 +++++++++++++++++++++++++++++++++++++++
 hw/usb/meson.build      |    1 +
 hw/usb/trace-events     |   11 +
 include/camera/camera.h |  238 +++++++
 include/hw/usb.h        |    2 +
 include/hw/usb/video.h  |  303 +++++++++
 meson.build             |   20 +-
 meson_options.txt       |    3 +
 qapi/camera.json        |  101 +++
 qapi/meson.build        |    1 +
 qapi/qapi-schema.json   |    1 +
 qemu-options.hx         |   13 +
 softmmu/vl.c            |    4 +
 23 files changed, 4050 insertions(+), 8 deletions(-)
 create mode 100644 camera/builtin.c
 create mode 100644 camera/camera-int.h
 create mode 100644 camera/camera.c
 create mode 100644 camera/meson.build
 create mode 100644 camera/trace-events
 create mode 100644 camera/trace.h
 create mode 100644 camera/v4l2.c
 create mode 100644 hw/usb/dev-video.c
 create mode 100644 include/camera/camera.h
 create mode 100644 include/hw/usb/video.h
 create mode 100644 qapi/camera.json

-- 
2.25.1