[PATCH 00/10] Qualcomm 8x16 Camera Subsystem driver

[Todor Tomov]

This patchset adds basic support for the Qualcomm Camera Subsystem found
on Qualcomm MSM8916 and APQ8016 processors.

The driver implements V4L2, Media controller and V4L2 subdev interfaces.
Camera sensor using V4L2 subdev interface in the kernel is supported.

The driver is implemented using as a reference the Qualcomm Camera
Subsystem driver for Android as found in Code Aurora [1].

The driver supports raw dump of the input data to memory. ISP processing
is not supported.

The driver is tested on Dragonboard 410C (APQ8016) with one and two
OV5645 camera sensors. media-ctl [2] and yavta [3] applications were
used for testing. Also Gstreamer 1.4.4 with v4l2src plugin is supported.

More information is present in the document added by the third patch.


The patchset depends on:
v4l: Add packed Bayer raw12 pixel formats [4]
media: venus: enable building of Venus video codec driver [5]


V4L2 compliance test result:

root@linaro-alip:~/v4l-utils/utils/v4l2-compliance# ./v4l2-compliance -s -d /dev/video0
v4l2-compliance SHA   : 6a760145f1a6809591a1cb17ee1b06913e4fddd1

Driver Info:
        Driver name   : qcom-camss
        Card type     : Qualcomm Camera Subsystem
        Bus info      : platform:qcom-camss
        Driver version: 4.9.0
        Capabilities  : 0x84200001
                Video Capture
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps   : 0x04200001
                Video Capture
                Streaming
                Extended Pix Format

Compliance test for device /dev/video0 (not using libv4l2):

Required ioctls:
        test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
        test second video open: OK
        test VIDIOC_QUERYCAP: OK
        test VIDIOC_G/S_PRIORITY: OK
        test for unlimited opens: OK

Debug ioctls:
        test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
        test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
        test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
        test VIDIOC_ENUMAUDIO: OK (Not Supported)
        test VIDIOC_G/S/ENUMINPUT: OK
        test VIDIOC_G/S_AUDIO: OK (Not Supported)
        Inputs: 1 Audio Inputs: 0 Tuners: 0

Output ioctls:
        test VIDIOC_G/S_MODULATOR: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_ENUMAUDOUT: OK (Not Supported)
        test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDOUT: OK (Not Supported)
        Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
        test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
        test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
        test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
        test VIDIOC_G/S_EDID: OK (Not Supported)

Test input 0:

        Control ioctls:
                test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
                test VIDIOC_QUERYCTRL: OK (Not Supported)
                test VIDIOC_G/S_CTRL: OK (Not Supported)
                test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
                test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
                test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
                Standard Controls: 0 Private Controls: 0

        Format ioctls:
                test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
                test VIDIOC_G/S_PARM: OK (Not Supported)
                test VIDIOC_G_FBUF: OK (Not Supported)
                test VIDIOC_G_FMT: OK
                test VIDIOC_TRY_FMT: OK
                test VIDIOC_S_FMT: OK
                test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
                test Cropping: OK (Not Supported)
                test Composing: OK (Not Supported)
                test Scaling: OK (Not Supported)

        Codec ioctls:
                test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
                test VIDIOC_G_ENC_INDEX: OK (Not Supported)
                test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

        Buffer ioctls:
                test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
                test VIDIOC_EXPBUF: OK (Not Supported)

Test input 0:

Streaming ioctls:
        test read/write: OK (Not Supported)
        test MMAP: OK                                     
        test USERPTR: OK (Not Supported)
        test DMABUF: OK (Not Supported)


Total: 47, Succeeded: 47, Failed: 0, Warnings: 0


[1] https://source.codeaurora.org/quic/la/kernel/msm-3.10/
[2] https://git.linuxtv.org//v4l-utils.git
[3] http://git.ideasonboard.org/yavta.git
[4] http://www.spinics.net/lists/linux-media/msg107494.html
[5] http://www.spinics.net/lists/linux-media/msg104013.html


Todor Tomov (10):
  doc: DT: camss: Binding document for Qualcomm Camera subsystem driver
  MAINTAINERS: Add Qualcomm Camera subsystem driver
  doc: media/v4l-drivers: Add Qualcomm Camera Subsystem driver document
  media: camss: Add CSIPHY files
  media: camss: Add CSID files
  media: camss: Add ISPIF files
  media: camss: Add VFE files
  media: camss: Add files which handle the video device nodes
  media: camms: Add core files
  media: camss: Add Makefiles and Kconfig files

 .../devicetree/bindings/media/qcom,camss.txt       |  196 ++
 Documentation/media/v4l-drivers/index.rst          |    1 +
 Documentation/media/v4l-drivers/qcom_camss.rst     |  124 ++
 MAINTAINERS                                        |    8 +
 drivers/media/platform/qcom/Kconfig                |    5 +
 drivers/media/platform/qcom/Makefile               |    1 +
 drivers/media/platform/qcom/camss-8x16/Makefile    |   12 +
 drivers/media/platform/qcom/camss-8x16/camss.c     |  603 +++++++
 drivers/media/platform/qcom/camss-8x16/camss.h     |   93 +
 drivers/media/platform/qcom/camss-8x16/csid.c      | 1071 +++++++++++
 drivers/media/platform/qcom/camss-8x16/csid.h      |   82 +
 drivers/media/platform/qcom/camss-8x16/csiphy.c    |  685 +++++++
 drivers/media/platform/qcom/camss-8x16/csiphy.h    |   77 +
 drivers/media/platform/qcom/camss-8x16/ispif.c     | 1105 ++++++++++++
 drivers/media/platform/qcom/camss-8x16/ispif.h     |   85 +
 drivers/media/platform/qcom/camss-8x16/vfe.c       | 1877 ++++++++++++++++++++
 drivers/media/platform/qcom/camss-8x16/vfe.h       |  112 ++
 drivers/media/platform/qcom/camss-8x16/video.c     |  597 +++++++
 drivers/media/platform/qcom/camss-8x16/video.h     |   67 +
 19 files changed, 6801 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,camss.txt
 create mode 100644 Documentation/media/v4l-drivers/qcom_camss.rst
 create mode 100644 drivers/media/platform/qcom/Kconfig
 create mode 100644 drivers/media/platform/qcom/Makefile
 create mode 100644 drivers/media/platform/qcom/camss-8x16/Makefile
 create mode 100644 drivers/media/platform/qcom/camss-8x16/camss.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/camss.h
 create mode 100644 drivers/media/platform/qcom/camss-8x16/csid.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/csid.h
 create mode 100644 drivers/media/platform/qcom/camss-8x16/csiphy.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/csiphy.h
 create mode 100644 drivers/media/platform/qcom/camss-8x16/ispif.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/ispif.h
 create mode 100644 drivers/media/platform/qcom/camss-8x16/vfe.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/vfe.h
 create mode 100644 drivers/media/platform/qcom/camss-8x16/video.c
 create mode 100644 drivers/media/platform/qcom/camss-8x16/video.h

-- 
1.9.1