linux-kernel - Re: [PATCH v2 00/11] Rockchip ISP1 Driver

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Message-ID: <CAFLEztQaQf2EHGEkZN-KT-SF-xoB+MCz0+P2T=4bQwHp0YEqgA@mail.gmail.com>
Date:   Fri, 24 Nov 2017 14:15:51 +0800
From:   Jacob Chen <jacob-chen@...wrt.com>
To:     "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Shunqian Zheng <zhengsq@...k-chips.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        钟以崇 <zyc@...k-chips.com>,
        Eddie Cai <eddie.cai.linux@...il.com>,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Allon Huang <allon.huang@...k-chips.com>,
        devicetree@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        robh+dt@...nel.org, Jacob Chen <jacob-chen@...wrt.com>
Subject: Re: [PATCH v2 00/11] Rockchip ISP1 Driver

HI all,

2017-11-24 10:36 GMT+08:00 Jacob Chen <jacob-chen@...wrt.com>:
> This patch series add a ISP(Camera) v4l2 driver for rockchip rk3288/rk3399 SoC.
>
> Kernel Branch:
> https://github.com/wzyy2/linux/tree/rkisp1/drivers/media/platform/rockchip/isp1
>
> Below are some infomations about driver/hardware:
>
> Rockchip ISP1 have many Hardware Blocks(simplied):
>
>   MIPI      --> ISP --> DCrop(Mainpath) --> RSZ(Mainpath) --> DMA(Mainpath)
>   DMA-Input -->     --> DCrop(Selfpath) --> RSZ(Selfpath) --> DMA(Selfpath);)
>
> (Acutally the TRM(rk3288, isp) could be found online...... which contains a more detailed block diagrams ;-P)
>
> The funcitons of each hardware block:
>
>   Mainpath : up to 4k resolution, support raw/yuv format
>   Selfpath : up tp 1080p, support rotate, support rgb/yuv format
>   RSZ: scaling
>   DCrop: crop
>   ISP: 3A, Color processing, Crop
>   MIPI: MIPI Camera interface
>
> Media pipelines:
>
>   Mainpath, Selfpath <-- ISP subdev <-- MIPI  <-- Sensor
>   3A stats           <--            <-- 3A parms
>
> Code struct:
>
>   capture.c : Mainpath, Selfpath, RSZ, DCROP : capture device.
>   rkisp1.c : ISP : v4l2 sub-device.
>   isp_params.c : 3A parms : output device.
>   isp_stats.c : 3A stats : capture device.
>   mipi_dphy_sy.c : MIPI : sperated v4l2 sub-device.
>
> Usage:
>   ChromiumOS:
>     use below v4l2-ctl command to capture frames.
>
>       v4l2-ctl --verbose -d /dev/video4 --stream-mmap=2
>       --stream-to=/tmp/stream.out --stream-count=60 --stream-poll
>
>     use below command to playback the video on your PC.
>
>       mplayer /tmp/stream.out -loop 0 --demuxer=rawvideo
>       --rawvideo=w=800:h=600:size=$((800*600*2)):format=yuy2
>     or
>       mplayer ./stream.out -loop 0 -demuxer rawvideo -rawvideo
>       w=800:h=600:size=$((800*600*2)):format=yuy2
>
>   Linux:
>     use rkcamsrc gstreamer plugin(just a modified v4l2src) to preview.
>
>       gst-launch-1.0 rkcamsrc device=/dev/video0 io-mode=4 disable-3A=true
>       videoconvert ! video/x-raw,format=NV12,width=640,height=480 ! kmssink
>
> Jacob Chen (7):
>   media: rkisp1: add rockchip isp1 driver
>   media: rkisp1: add Rockchip MIPI Synopsys DPHY driver
>   dt-bindings: Document the Rockchip ISP1 bindings
>   dt-bindings: Document the Rockchip MIPI RX D-PHY bindings
>   ARM: dts: rockchip: add isp node for rk3288
>   ARM: dts: rockchip: add rx0 mipi-phy for rk3288
>   MAINTAINERS: add entry for Rockchip ISP1 driver
>
> Jeffy Chen (1):
>   media: rkisp1: Add user space ABI definitions
>
> Shunqian Zheng (3):
>   media: videodev2.h, v4l2-ioctl: add rkisp1 meta buffer format
>   arm64: dts: rockchip: add isp0 node for rk3399
>   arm64: dts: rockchip: add rx0 mipi-phy for rk3399
>
>  .../devicetree/bindings/media/rockchip-isp1.txt    |   61 +
>  .../bindings/media/rockchip-mipi-dphy.txt          |   77 +
>  MAINTAINERS                                        |   10 +
>  arch/arm/boot/dts/rk3288.dtsi                      |   24 +
>  arch/arm64/boot/dts/rockchip/rk3399.dtsi           |   26 +
>  drivers/media/platform/Kconfig                     |   10 +
>  drivers/media/platform/Makefile                    |    1 +
>  drivers/media/platform/rockchip/isp1/Makefile      |    8 +
>  drivers/media/platform/rockchip/isp1/capture.c     | 1691 ++++++++++++++++++++
>  drivers/media/platform/rockchip/isp1/capture.h     |   46 +
>  drivers/media/platform/rockchip/isp1/common.h      |  330 ++++
>  drivers/media/platform/rockchip/isp1/dev.c         |  632 ++++++++
>  drivers/media/platform/rockchip/isp1/isp_params.c  | 1556 ++++++++++++++++++
>  drivers/media/platform/rockchip/isp1/isp_params.h  |   81 +
>  drivers/media/platform/rockchip/isp1/isp_stats.c   |  537 +++++++
>  drivers/media/platform/rockchip/isp1/isp_stats.h   |   81 +
>  .../media/platform/rockchip/isp1/mipi_dphy_sy.c    |  805 ++++++++++
>  drivers/media/platform/rockchip/isp1/regs.c        |  251 +++
>  drivers/media/platform/rockchip/isp1/regs.h        | 1578 ++++++++++++++++++
>  drivers/media/platform/rockchip/isp1/rkisp1.c      | 1230 ++++++++++++++
>  drivers/media/platform/rockchip/isp1/rkisp1.h      |  130 ++
>  drivers/media/v4l2-core/v4l2-ioctl.c               |    2 +
>  include/uapi/linux/rkisp1-config.h                 |  554 +++++++
>  include/uapi/linux/videodev2.h                     |    4 +
>  24 files changed, 9725 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip-isp1.txt
>  create mode 100644 Documentation/devicetree/bindings/media/rockchip-mipi-dphy.txt
>  create mode 100644 drivers/media/platform/rockchip/isp1/Makefile
>  create mode 100644 drivers/media/platform/rockchip/isp1/capture.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/capture.h
>  create mode 100644 drivers/media/platform/rockchip/isp1/common.h
>  create mode 100644 drivers/media/platform/rockchip/isp1/dev.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/isp_params.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/isp_params.h
>  create mode 100644 drivers/media/platform/rockchip/isp1/isp_stats.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/isp_stats.h
>  create mode 100644 drivers/media/platform/rockchip/isp1/mipi_dphy_sy.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/regs.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/regs.h
>  create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.c
>  create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.h
>  create mode 100644 include/uapi/linux/rkisp1-config.h
>
> --
> 2.15.0
>


Sorry, i forget to add a changelog.

changes in V2:
  mipi-phy:
    - use async probing
    - make it be a child device of the GRF

  isp:
    - add dummy buffer
    - change the way to get bus configuration, which make it possible to
            add parallel sensor support in the future(without mipi-phy driver).


I resend it for now because i think v2 patch looks more clearly than
the old one,
the v1 patch could just be superseded.