Message-Id: <BF96E22A-7884-413D-9CEA-2C992B22F756@goldelico.com>
Date:   Mon, 3 Jul 2017 11:14:19 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Hugues FRUCHET <hugues.fruchet@...com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@....fi>
Cc:     Pavel Machek <pavel@....cz>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 0/6] Add support of OV9655 camera

Hi Hugues,

> Am 03.07.2017 um 10:16 schrieb Hugues FRUCHET <hugues.fruchet@...com>:
> 
> Hi Nikolaus,
> Could you enable V4L2 UAPI traces ? Something like:
> echo 0xFF >  /sys/devices/platform/soc/<isp address>.<isp 
> name>/video4linux/video2/dev_debug
> 
> you will see then in kernel dmesg the V4L2 calls and their 
> parameters/return values.

Nice.

> root@...ux:~# echo 255 >/sys/devices/platform/68000000.ocp/480bc000.isp/video4linux/video2/dev_debug
> root@...ux:~# ./camera-demo sxga
> Camera: /dev/v4l-subdev8
> Setting mode sxga
> media-ctl -r
> media-ctl -l '"ov965x":0 -> "OMAP3 ISP CCDC":0[1]'
> media-ctl -l '"OMAP3 ISP CCDC":1 -> "OMAP3 ISP CCDC output":0[1]'
> media-ctl -V '"ov965x":0 [UYVY2X8 1280x1024]'
> media-ctl -V '"OMAP3 ISP CCDC":0 [UYVY2X8 1280x1024]'
> media-ctl -V '"OMAP3 ISP CCDC":1 [UYVY 1280x1024]'
> ### starting mplayer in sxga mode ###
> mplayer tv:// -vf rotate=2 -tv driver=v4l2:device=/dev/video2:outfmt=uyvy:width=1280:height=1024:fps=15 -vo x11
> MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team
> 
> Playing tv://.
> Detected file format: TV
> Selected driver: v4l2
>  name: Video 4 Linux 2 input
>  author: Martin Olschewski <olschewski@....uni-koeln.de>
>  comment: first try, more to come ;-)
> [  425.216094] video2: open (0)
> [  425.219329] video2: VIDIOC_QUERYCAP: driver=ispvideo, card=OMAP3 ISP CCDC output, bus=media, version=0x00040c00, capabilities=0x84200003, device_caps=0x04200001
> [  425.236389] video2: VIDIOC_G_FMT: type=vid-cap, width=0, height=0, pixelformat=, field=any, bytesperline=0, sizeimage=0, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.254699] video2: VIDIOC_G_STD: error -25: std=0x00000000
> [  425.260620] video2: VIDIOC_G_PARM: error -22: type=vid-cap, capability=0x0, capturemode=0x0, timeperframe=0/0, extendedmode=0, readbuffers=0
> v4l2: ioctl get standard failed: Invalid argumen[  425.275573] video2: VIDIOC_ENUMSTD: error -25: index=0, id=0x0, name=, fps=0/0, framelines=0
> t
> Selected device: OMAP3 ISP CCDC output
>  Capa[  425.289398] video2: VIDIOC_ENUMINPUT: index=0, name=camera, type=2, audioset=0x0, tuner=0, std=0x00000000, status=0x0, capabilities=0x0
> bilities:  video capture  video output  streamin[  425.306396] video2: VIDIOC_ENUMINPUT: error -22: index=1, name=, type=0, audioset=0x0, tuner=0, std=0x00000000, status=0x0, capabilities=0x0
> g
>  supported norms:
>  inputs: 0 = camera;[  425.323822] video2: VIDIOC_G_INPUT: value=0
> 
>  Current input: 0
> [  425.332580] video2: VIDIOC_ENUM_FMT: error -25: index=0, type=vid-cap, flags=0x0, pixelformat=, description=''
>  Current format: unknown (0x0)
> [  425.345428] video2: VIDIOC_G_FMT: type=vid-cap, width=0, height=0, pixelformat=, field=any, bytesperline=0, sizeimage=0, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.367858] video2: VIDIOC_S_FMT: type=vid-cap, width=640, height=480, pixelformat=, field=none, bytesperline=0, sizeimage=0, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.386627] video2: VIDIOC_G_FMT: type=vid-cap, width=640, height=480, pixelformat=, field=none, bytesperline=0, sizeimage=0, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.405334] video2: VIDIOC_S_FMT: type=vid-cap, width=640, height=480, pixelformat=UYVY, field=none, bytesperline=1280, sizeimage=614400, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.425720] video2: VIDIOC_ENUMINPUT: index=0, name=camera, type=2, audioset=0x0, tuner=0, std=0x00000000, status=0x0, capabilities=0x0
> [  425.439727] video2: VIDIOC_S_INPUT: value=0
> [  425.445159] video2: VIDIOC_ENUMSTD: error -25: index=0, id=0x0, name=, fps=0/0, framelines=0
> tv.c: norm_from_string(pal): Bogus norm paramete[  425.455871] video2: VIDIOC_ENUMSTD: error -25: index=0, id=0x0, name=, fps=0/0, framelines=0
> r, setting default.
> v4l2: ioctl enum norm failed: In[  425.470397] video2: VIDIOC_G_FMT: type=vid-cap, width=640, height=480, pixelformat=UYVY, field=none, bytesperline=1280, sizeimage=614400, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> appropriate ioctl for device
> Error: Cannot set [  425.493743] video2: VIDIOC_S_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> norm!
> [  425.517669] video2: VIDIOC_G_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.538238] video2: VIDIOC_S_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.558990] video2: VIDIOC_G_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.579498] video2: VIDIOC_S_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> Selected input hasn't got a tuner!
> [  425.600646] video2: VIDIOC_G_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.623840] video2: VIDIOC_G_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.644317] video2: VIDIOC_G_FMT: type=vid-cap, width=1280, height=1024, pixelformat=UYVY, field=none, bytesperline=2560, sizeimage=2621440, colorspace=0, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
> [  425.676971] video2: VIDIOC_REQBUFS: count=2, type=vid-cap, memory=mmap
> [  425.684082] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=0, type=vid-cap, flags=0x00002000, field=any, sequence=0, memory=mmap, bytesused=0, offset/userptr=0x0, length=2621440
> [  425.702117] timecode=00:00:00 type=0, flags=0x00000000, frames=0, userbits=0x00000000
> [  425.713073] video2: mmap (0)
> [  425.716400] video2: VIDIOC_QBUF: 00:00:00.00000000 index=0, type=vid-cap, flags=0x00002003, field=any, sequence=0, memory=mmap, bytesused=2621440, offset/userptr=0x0, length=2621440
> [  425.734436] timecode=00:00:00 type=0, flags=0x00000000, frames=0, userbits=0x00000000
> [  425.743499] video2: VIDIOC_QUERYBUF: 00:00:00.00000000 index=1, type=vid-cap, flags=0x00002000, field=any, sequence=0, memory=mmap, bytesused=0, offset/userptr=0x280000, length=2621440
> [  425.761688] timecode=00:00:00 type=0, flags=0x00000000, frames=0, userbits=0x00000000
> [  425.772186] video2: mmap (0)
> [  425.775299] video2: VIDIOC_QBUF: 00:00:00.00000000 index=1, type=vid-cap, flags=0x00002003, field=any, sequence=0, memory=mmap, bytesused=2621440, offset/userptr=0x280000, length=2621440
> [  425.793670] timecode=00:00:00 type=0, flags=0x00000000, frames=0, userbits=0x00000000
> [  425.802703] video2: VIDIOC_S_CTRL: error -25: id=0x980909, value=0
> v4l2: ioctl set mute failed: Inappropriate ioctl[  425.809661] video2: VIDIOC_QUERYCTRL: error -25: id=0x980900, type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000
>  for device
> v4l2: ioctl query control failed: Inappropriate [  425.826965] video2: VIDIOC_QUERYCTRL: error -25: id=0x980903, type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000
> ioctl for device
> v4l2: ioctl query control failed[  425.844055] video2: VIDIOC_QUERYCTRL: error -25: id=0x980902, type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000
> : Inappropriate ioctl for device
> v4l2: ioctl quer[  425.860198] video2: VIDIOC_QUERYCTRL: error -25: id=0x980901, type=0, name=, min/max=0/0, step=0, default=0, flags=0x00000000
> y control failed: Inappropriate ioctl for device
> v4l2: ioctl query control failed: Inappropriate ioctl for device
> [  425.930206] configuring for 1280(2560)x1024
> [  425.943481] omap3isp 480bc000.isp: -------------CCDC Register dump-------------
> [  425.951171] omap3isp 480bc000.isp: ###CCDC PCR=0x00000000
> [  425.958007] omap3isp 480bc000.isp: ###CCDC SYN_MODE=0x00071704
> [  425.964996] omap3isp 480bc000.isp: ###CCDC HD_VD_WID=0x00000000
> [  425.972656] omap3isp 480bc000.isp: ###CCDC PIX_LINES=0x00000000
> [  425.978881] omap3isp 480bc000.isp: ###CCDC HORZ_INFO=0x000004ff
> [  425.986114] omap3isp 480bc000.isp: ###CCDC VERT_START=0x00000000
> [  425.993255] omap3isp 480bc000.isp: ###CCDC VERT_LINES=0x000003ff
> [  425.999694] omap3isp 480bc000.isp: ###CCDC CULLING=0xffff00ff
> [  426.006530] omap3isp 480bc000.isp: ###CCDC HSIZE_OFF=0x00000a00
> [  426.013580] omap3isp 480bc000.isp: ###CCDC SDOFST=0x00000000
> [  426.019531] omap3isp 480bc000.isp: ###CCDC SDR_ADDR=0x40000000
> [  426.026550] omap3isp 480bc000.isp: ###CCDC CLAMP=0x00000010
> [  426.033142] omap3isp 480bc000.isp: ###CCDC DCSUB=0x00000000
> [  426.039123] omap3isp 480bc000.isp: ###CCDC COLPTN=0xbb11bb11
> [  426.046020] omap3isp 480bc000.isp: ###CCDC BLKCMP=0x00000000
> [  426.052795] omap3isp 480bc000.isp: ###CCDC FPC=0x00000000
> [  426.058532] omap3isp 480bc000.isp: ###CCDC FPC_ADDR=0x00000000
> [  426.065551] omap3isp 480bc000.isp: ###CCDC VDINT=0x03fe02aa
> [  426.072143] omap3isp 480bc000.isp: ###CCDC ALAW=0x00000006
> [  426.078033] omap3isp 480bc000.isp: ###CCDC REC656IF=0x00000000
> [  426.084960] omap3isp 480bc000.isp: ###CCDC CFG=0x00008800
> [  426.090759] omap3isp 480bc000.isp: ###CCDC FMTCFG=0x00000000
> [  426.097869] omap3isp 480bc000.isp: ###CCDC FMT_HORZ=0x00000000
> [  426.104949] omap3isp 480bc000.isp: ###CCDC FMT_VERT=0x00000000
> [  426.111053] omap3isp 480bc000.isp: ###CCDC PRGEVEN0=0x00000000
> [  426.118103] omap3isp 480bc000.isp: ###CCDC PRGEVEN1=0x00000000
> [  426.124999] omap3isp 480bc000.isp: ###CCDC PRGODD0=0x00000000
> [  426.131164] omap3isp 480bc000.isp: ###CCDC PRGODD1=0x00000000
> [  426.138000] omap3isp 480bc000.isp: ###CCDC VP_OUT=0x00000000
> [  426.144744] omap3isp 480bc000.isp: ###CCDC LSC_CONFIG=0x00006600
> [  426.151062] omap3isp 480bc000.isp: ###CCDC LSC_INITIAL=0x00000000
> [  426.158325] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_BASE=0x00000000
> [  426.165740] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_OFFSET=0x00000000
> [  426.173400] omap3isp 480bc000.isp: --------------------------------------------
> [  426.188140] video2: VIDIOC_STREAMON: type=vid-cap
> [  426.194244] video2: poll: 00000000
> [ass] auto-open
> Opening video filter: [rotate=2]
> VIDEO:  1280x1024  15.000 fps    0.0 kbps ( 0.0 kB/s)
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> [swscaler @ 0xb5d45980]using unscaled uyvy422 -> yuv420p special converter
> VO: [x11] 1024x1280 => 1024x1280 Planar YV12 
> [swscaler @ 0xb5d45980]No accelerated colorspace conversion found from yuv420p to bgra.
> Colorspace details not fully supported by selected vo.
> Selected video codec: RAW UYVY [raw]
> Audio: no sound
> Starting playback...
> [  427.194793] video2: poll: 00000000
> v4l2: select timeout
> [  427.203033] video2: poll: 00000000
> [  428.204498] video2: poll: 00000000
> 
> v4l2: select timeout
> [  428.215667] video2: poll: 00000000
> [  429.217102] video2: poll: 00000000
> 
> v4l2: select timeout
> [  429.233978] video2: poll: 00000000
> [  430.235656] video2: poll: 00000000
> 
> v4l2: select timeout
> [  430.240661] video2: poll: 00000000
> [  431.242889] video2: poll: 00000000
> 
> v4l2: select timeout
> [  431.249114] video2: poll: 00000000
> V:   0.0   6/  6 ??% ??% ??,?% 0 0 
> 
> 
> MPlayer interrupted by signal 2 in module: filter_video
> [  432.251220] video2: poll: 00000000
> v4l2: select timeout
> [  432.256713] video2: poll: 00000000
> [  433.258941] video2: poll: 00000000
> 
> v4l2: select timeout
> [  433.266632] omap3isp 480bc000.isp: OMAP3 ISP AEWB: user wants to disable module.
> [  433.280090] omap3isp 480bc000.isp: OMAP3 ISP AEWB: module is being disabled
> [  433.290130] omap3isp 480bc000.isp: OMAP3 ISP AF: user wants to disable module.
> [  433.300140] omap3isp 480bc000.isp: OMAP3 ISP AF: module is being disabled
> [  433.309631] omap3isp 480bc000.isp: OMAP3 ISP histogram: user wants to disable module.
> [  433.319885] omap3isp 480bc000.isp: OMAP3 ISP histogram: module is being disabled
> [  435.373168] omap3isp 480bc000.isp: CCDC stop timeout!
> [  435.380371] omap3isp 480bc000.isp: Unable to stop OMAP3 ISP CCDC
> [  435.391754] video2: VIDIOC_STREAMOFF: type=vid-cap
> [  435.397583] video2: VIDIOC_DQBUF: error -22: 00:00:00.00000000 index=0, type=vid-cap, flags=0x00000000, field=any, sequence=0, memory=mmap, bytesused=0, offset/userptr=0x0, length=0
> [  435.417175] timecode=00:00:00 type=0, flags=0x00000000, frames=0, userbits=0x00000000
> [  435.431549] video2: VIDIOC_S_CTRL: error -25: id=0x980909, value=1
> v4l2: ioctl set mute failed: Inappropriate ioctl for device
> [  435.495422] video2: release
> v4l2: 0 frames successfully processed, 1 frames dropped.
> 
> Exiting... (Quit)
> root@...ux:~# 

Seem as if it tells me not much more than setting "pal" norm does fail and there is no "MUTE".
VIDIOC_STREAMON is successful and the poll times out.

Anyways, this indicates that the problem is probably not in the v4l2 layer but below, i.e. omap3isp+camera.

Maybe as simple as the ISP ignoring the SYNC inputs and then of course failing to capture frames within given time.
I have checked our pinmux setup but didn't find anything suspicious.

So is it somehow possible to check if the omap3isp is running and receiving sync inpulses?

BR and thanks,
Nikolaus

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