Bingbu On Mon, 2023-08-21 at 08:55 +0200, Claus Stovgaard wrote: > Bingbu > > On Mon, 2023-08-21 at 14:22 +0800, Bingbu Cao wrote: > > > > Claus, > > > > > > On 8/21/23 11:14 AM, Bingbu Cao wrote: > > > > > > I see that the ivsc driver has not been in master branch. Before > > that, > > could you try several hack to check whether camera can work on > > master? > > > > https://github.com/bingbucao/linux/commits/ipu_dev > > > > 7ebff51284d9 media: ov01a10: hack ivsc to make camera can work > > 01cc9f3d1b61 i2c: ljca: Call acpi_dev_clear_dependencies() > > 92e5d122e105 vsc: Defer firmware loading to avoid long probing time > > 5f5d5f0df06b driver: ivsc: add intel ivsc driver > > 0f4819dec533 Revert "gpio: Add support for Intel LJCA USB GPIO > > driver" > > Thanks for your quick reply. > > I was missing understanding of ivsc when I wrote the mail yesterday. > Got some basic understanding yesterday after I wrote, and big thanks > for confirming it, and also thanks for your ipu_dev branch. Has just > cloned it, and is building as I write. > > Just fyi, I was trying to hack something together yesterday, and got > further, but not yet working. > > My hack was to combine the out-of-tree ivsc drivers and firmware from > > * https://github.com/intel/ivsc-firmware.git > * https://github.com/intel/ivsc-driver.git > > Though noticed that I need some changes to the sensor driver so was > also building all the drivers from ipu6-drivers (with minor changes > to > get_pages) as out-of-tree modules. > > * https://github.com/intel/ipu6-drivers.git ; > > Here I used everything beside media/pci/*.ko files. I could see the > sensor and got further, but was missing the last. > > Looking forward to try your branch. Looks much cleaner, and would be > nice to get working :) > I got it to work on Dell XPS 9320. With some minor changes compared to your guide in Documentation/admin- guide/media/ipu6-isys.rst [root@xps-1 ]# uname -a Linux xps-1 6.5.0-rc7-g7ebff51284d9 #1 SMP PREEMPT_DYNAMIC Mon Aug 21 09:02:20 CEST 2023 x86_64 GNU/Linux [root@xps-1 ]# media-ctl -d /dev/media0 -p | tail -n10 - entity 2149: ov01a10 16-0036 (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev4 pad0: Source [fmt:SBGGR10_1X10/1280x800 field:none colorspace:raw crop.bounds:(0,0)/1296x816 crop:(8,8)/1280x800] -> "Intel IPU6 CSI2 2":0 [] So i2c is 16-0036 - and we use it for setup like your guide. export MDEV=/dev/media0 media-ctl -d $MDEV -l "\"ov01a10 17-0036\":0 -> \"Intel IPU6 CSI2 2\":0[1]" media-ctl -d $MDEV -V "\"ov01a10 17-0036\":0 [fmt:SBGGR10/1280x800]" media-ctl -d $MDEV -V "\"Intel IPU6 CSI2 2\":0 [fmt:SBGGR10/1280x800]" media-ctl -d $MDEV -V "\"Intel IPU6 CSI2 2\":1 [fmt:SBGGR10/1280x800]" media-ctl -d $MDEV -l "\"ov01a10 17-0036\":0 -> \"Intel IPU6 CSI2 2\":0[1]" media-ctl -d $MDEV -l "\"Intel IPU6 CSI2 2\":1 ->\"Intel IPU6 ISYS Capture 0\":0[5]" Though yavta does not work in the way as described in the guide. [root@xps-1 ]# yavta --data-prefix -u -c10 -n5 -I -s 1280x800 -- file=/tmp/frame-#.bin -f SBGGR10 /dev/video0 Device /dev/video0 opened. Device `ipu6' on `PCI:0000:00:05.0' (driver 'isys') supports video, capture, with mplanes. Video format set: SBGGR10 (30314742) 1280x800 field none, 1 planes: * Stride 2560, buffer size 2050560 Video format: SBGGR10 (30314742) 1280x800 field none, 1 planes: * Stride 2560, buffer size 2050560 Unable to request buffers: Invalid argument (22). So I changed to use v4l2-ctl [root@xps-1 ]# v4l2-ctl -d /dev/video0 --set-fmt-video width=1280,height=800,pixelformat=BG10 --stream-mmap --stream-count=1 - -stream-to=frame.bin With this I created raw data in BG10 format, and later used a small python script with numpy and opencv to look at the data. #!/usr/bin/env python3 # Demosaicing Bayer Raw image import cv2 import numpy as np width = 1280 height = 800 with open("frame.bin", "rb") as rawimg: # Read the bayer data data = np.fromfile(rawimg, np.uint16, width * height) bayer = np.reshape(data, (height, width)) # Just a offset gain to be able to see something for x in range(0, len(bayer)): for y in range(0, len(bayer[0])): bayer[x, y] = (bayer[x,y] << 8) rgb = cv2.cvtColor(bayer, cv2.COLOR_BayerBGGR2RGB) cv2.imshow('rgb', rgb) cv2.waitKey() cv2.destroyAllWindows() Thanks for the help, and now we know what is needed to make it work on top of yesterdays rc7 /Claus
