Re: [PATCH 00/17] various fixes for atomisp to make it work

[Tsuchiya Yuto <kitakar@gmail.com>]

<Fixed Cc list>

On Mon, 2021-10-18 at 01:19 +0900, Tsuchiya Yuto wrote:
> [...]
>   ## taking a picture with atomisp
> 
> Note that to try to take a picture, please also apply at least the
> this RFC patch ("[BUG][RFC] media: atomisp: pci: assume run_mode is
> PREVIEW") I'll send as almost a BUG report later.
> 
> You need to use firmware version irci_stable_candrpv_0415_20150521_0458,
> which is available from the intel-aero [1]

Just in case, the hash (as well as version) of firmware which I
downloaded from intel-aero and I use to capture is the following:

        $ sha256sum /lib/firmware/shisp_2401a0_v21.bin
        e89359f4e4934c410c83d525e283f34c5fcce9cb5caa75ad8a32d66d3842d95c  /lib/firmware/shisp_2401a0_v21.bin

        $ strings /lib/firmware/shisp_2401a0_v21.bin | grep 2015
        irci_stable_candrpv_0415_20150521_0458

Regards,
Tsuchiya Yuto

> The atomisp (ipu2), like the ipu3, needs userspace support. The libcamera
> has now decent ipu3 support but does not have atomisp support yet.
> 
> I found some userspace tools for atomisp that run on Linux:
> 
>   - capturev4l2 from intel-aero/sample-apps
>     (https://github.com/intel-aero/sample-apps/tree/master/capturev4l2)
>   - hd-camera from intel-aero/sample-apps
>     (https://github.com/intel-aero/sample-apps/tree/master/hd-camera)
>   - intel/nvt
>     (https://github.com/intel/nvt)
> 
> It looks like the nvt is the most feature-rich, like exposure and white
> balance. Note that current upstreamed atomisp dropped 32-bit support.
> So, you need to build it with `-m64` (change it in Makefile). Here is
> the example of usage I use on mipad2:
> 
>         $ ./v4l2n -o testimage_@.raw \
>                 --device /dev/video2 \
>                 --input 0 \
>                 --exposure=30000,30000,30000,30000 \
>                 --parm type=1,capturemode=CI_MODE_PREVIEW \
>                 --fmt type=1,width=1920,height=1080,pixelformat=NV12 \
>                 --reqbufs count=2,memory=USERPTR \
>                 --parameters=wb_config.r=32768,wb_config.gr=21043,wb_config.gb=21043,wb_config.b=30863 \
>                 --capture=2 \
> 
>         ./raw2pnm -x1920 -y1080 -fNV12 testimage_001.raw testimage_001.pnm
>         feh *.pnm # open the converted image
>         rm testimage*
> 
> Note that I see the following warn/err after capture:
> 
>         kern  :warn  : [72660.793335] atomisp-isp2 0000:00:03.0: stop stream timeout.
>         kern  :err   : [72660.973629] atomisp-isp2 0000:00:03.0: atomisp_reset
> 
> but I see the same message on the Android kernel, too. So, I think this
> is not a real issue (I hope).
> 
> [1] https://github.com/intel-aero/meta-intel-aero-base/tree/master/recipes-kernel/linux/linux-yocto
>     filename shisp_2401a0_v21.bin