Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752822AbdGCIRH (ORCPT ); Mon, 3 Jul 2017 04:17:07 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:48928 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751016AbdGCIRF (ORCPT ); Mon, 3 Jul 2017 04:17:05 -0400 From: Hugues FRUCHET To: "H. Nikolaus Schaller" , Laurent Pinchart , Sakari Ailus , Pavel Machek CC: Discussions about the Letux Kernel , LKML Subject: Re: [PATCH v1 0/6] Add support of OV9655 camera Thread-Topic: [PATCH v1 0/6] Add support of OV9655 camera Thread-Index: AQHS8q0cqllmgbGV10O4wgorZl1bt6JBooYA Date: Mon, 3 Jul 2017 08:16:42 +0000 Message-ID: References: <1498143942-12682-1-git-send-email-hugues.fruchet@st.com> <385A82AC-CC23-41BD-9F57-0232F713FED9@goldelico.com> <1E453955-0C1A-414B-BBB2-C64B6D0EF378@goldelico.com> <20170625091856.GA22791@amd> <20170626083927.GB9621@amd>

<658307f3-7abe-5738-7a8a-2eff6e0902a1@st.com> <95B10899-9966-4844-9667-D2434968A492@goldelico.com> <85e62c47-e319-c801-376c-95f4d9cbf75a@st.com> <77bd3b8fe52643d68ecc821ec22bc0e6@SFHDAG5NODE1.st.com> <14B52F58-AE2B-46F7-851A-F31D4485C230@goldelico.com> In-Reply-To: <14B52F58-AE2B-46F7-851A-F31D4485C230@goldelico.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.48] Content-Type: text/plain; charset="utf-8" Content-ID: <936D45250295234A895B3FDE509EBDFF@st.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-07-03_04:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id v638HCLn020844 Content-Length: 7677 Lines: 174 Hi Nikolaus, Could you enable V4L2 UAPI traces ? Something like: echo 0xFF > /sys/devices/platform/soc/./video4linux/video2/dev_debug you will see then in kernel dmesg the V4L2 calls and their parameters/return values. BR, Hugues. On 07/01/2017 11:00 PM, H. Nikolaus Schaller wrote: > Hi, > > Firstly, it turned out that we also must have V4L2_CID_PIXEL_RATE for omap3isp compatibility > (see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?&id=0bc77f3f06fcf2ca7b7fad782d70926cd4d235f1 ). > > And secondly, I have tried to add some SXGA config and it looks good by oscilloscope: > - XCLK ca. 24 MHz > - PCLK ca. 12 MHz > - HREF ca. 15.6 kHz negative going impulses > - VSYNC ca. 15 Hz (fps) positive going impulses > - D8 data line shows changing 0/1 patterns which depend on light falling in camera lens > > But mplayer still shows a green screen and reports v4l2: select timeout. > > I assume we should see a at least scrambled image but not a green screen, > even if sync position and polarity or data format would not be correctly > set up. > > This time the omap3isp is fully initialized and does a register dump: > >> root@letux:~# ./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 > > NOTE: /dev/video2 is $(media-ctl -e "OMAP3 ISP CCDC output") > >> 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 >> comment: first try, more to come ;-) >> v4l2: ioctl get standard failed: Invalid argument > > ^^^ does not look harmful > >> Selected device: OMAP3 ISP CCDC output >> Capabilities: video capture video output streaming >> supported norms: >> inputs: 0 = camera; >> Current input: 0 >> Current format: unknown (0x0) >> tv.c: norm_from_string(pal): Bogus norm parameter, setting default. >> v4l2: ioctl enum norm failed: Inappropriate ioctl for device > > ^^^ does not look harmful > >> Error: Cannot set norm! >> Selected input hasn't got a tuner! > > ^^^ does not look harmful > >> v4l2: ioctl set mute failed: Inappropriate ioctl for device >> v4l2: ioctl query control failed: Inappropriate ioctl for device >> v4l2: ioctl query control failed: Inappropriate ioctl for device >> v4l2: ioctl query control failed: Inappropriate ioctl for device >> v4l2: ioctl query control failed: Inappropriate ioctl for device > > ^^^ does not look harmful > >> [ 558.848815] configuring for 1280(2560)x1024 >> [ 558.854003] omap3isp 480bc000.isp: -------------CCDC Register dump------------- >> [ 558.863983] omap3isp 480bc000.isp: ###CCDC PCR=0x00000000 >> [ 558.870880] omap3isp 480bc000.isp: ###CCDC SYN_MODE=0x00071704 >> [ 558.877227] omap3isp 480bc000.isp: ###CCDC HD_VD_WID=0x00000000 >> [ 558.884613] omap3isp 480bc000.isp: ###CCDC PIX_LINES=0x00000000 >> [ 558.891876] omap3isp 480bc000.isp: ###CCDC HORZ_INFO=0x000004ff >> [ 558.898132] omap3isp 480bc000.isp: ###CCDC VERT_START=0x00000000 >> [ 558.905700] omap3isp 480bc000.isp: ###CCDC VERT_LINES=0x000003ff >> [ 558.913421] omap3isp 480bc000.isp: ###CCDC CULLING=0xffff00ff >> [ 558.920471] omap3isp 480bc000.isp: ###CCDC HSIZE_OFF=0x00000a00 >> [ 558.926727] omap3isp 480bc000.isp: ###CCDC SDOFST=0x00000000 >> [ 558.933929] omap3isp 480bc000.isp: ###CCDC SDR_ADDR=0x40000000 >> [ 558.940948] omap3isp 480bc000.isp: ###CCDC CLAMP=0x00000010 >> [ 558.946990] omap3isp 480bc000.isp: ###CCDC DCSUB=0x00000000 >> [ 558.953948] omap3isp 480bc000.isp: ###CCDC COLPTN=0xbb11bb11 >> [ 558.960845] omap3isp 480bc000.isp: ###CCDC BLKCMP=0x00000000 >> [ 558.966888] omap3isp 480bc000.isp: ###CCDC FPC=0x00000000 >> [ 558.973724] omap3isp 480bc000.isp: ###CCDC FPC_ADDR=0x00000000 >> [ 558.982757] omap3isp 480bc000.isp: ###CCDC VDINT=0x03fe02aa >> [ 558.988769] omap3isp 480bc000.isp: ###CCDC ALAW=0x00000004 >> [ 558.995483] omap3isp 480bc000.isp: ###CCDC REC656IF=0x00000000 >> [ 559.002380] omap3isp 480bc000.isp: ###CCDC CFG=0x00008800 >> [ 559.008056] omap3isp 480bc000.isp: ###CCDC FMTCFG=0x00000000 >> [ 559.014892] omap3isp 480bc000.isp: ###CCDC FMT_HORZ=0x00000000 >> [ 559.021697] omap3isp 480bc000.isp: ###CCDC FMT_VERT=0x00000000 >> [ 559.027954] omap3isp 480bc000.isp: ###CCDC PRGEVEN0=0x00000000 >> [ 559.034912] omap3isp 480bc000.isp: ###CCDC PRGEVEN1=0x00000000 >> [ 559.041748] omap3isp 480bc000.isp: ###CCDC PRGODD0=0x00000000 >> [ 559.047790] omap3isp 480bc000.isp: ###CCDC PRGODD1=0x00000000 >> [ 559.054687] omap3isp 480bc000.isp: ###CCDC VP_OUT=0x00000000 >> [ 559.061645] omap3isp 480bc000.isp: ###CCDC LSC_CONFIG=0x00006600 >> [ 559.068084] omap3isp 480bc000.isp: ###CCDC LSC_INITIAL=0x00000000 >> [ 559.075378] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_BASE=0x00000000 >> [ 559.082916] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_OFFSET=0x00000000 >> [ 559.090454] omap3isp 480bc000.isp: -------------------------------------------- >> [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... >> v4l2: select timeout >> V: 0.0 1/ 1 ??% ??% ??,?% 0 0 >> v4l2: select timeout >> V: 0.0 3/ 3 ??% ??% ??,?% 0 0 >> v4l2: select timeout >> V: 0.0 4/ 4 ??% ??% ??,?% 0 0 >> v4l2: select timeout >> V: 0.0 5/ 5 ??% ??% ??,?% 0 0 >> v4l2: select timeout >> >> >> MPlayer interrupted by signal 2 in module: filter_video >> V: 0.0 6/ 6 ??% ??% ??,?% 0 0 >> v4l2: select timeout >> [ 565.122406] omap3isp 480bc000.isp: OMAP3 ISP AEWB: user wants to disable module. >> [ 565.130950] omap3isp 480bc000.isp: OMAP3 ISP AEWB: module is being disabled >> [ 565.138397] omap3isp 480bc000.isp: OMAP3 ISP AF: user wants to disable module. >> [ 565.149047] omap3isp 480bc000.isp: OMAP3 ISP AF: module is being disabled >> [ 565.158660] omap3isp 480bc000.isp: OMAP3 ISP histogram: user wants to disable module. >> [ 565.168945] omap3isp 480bc000.isp: OMAP3 ISP histogram: module is being disabled >> [ 567.221099] omap3isp 480bc000.isp: CCDC stop timeout! >> [ 567.226593] omap3isp 480bc000.isp: Unable to stop OMAP3 ISP CCDC > > ^^^ that looks like some lockup of the CCDC? > >> v4l2: ioctl set mute failed: Inappropriate ioctl for device >> v4l2: 0 frames successfully processed, 1 frames dropped. >> >> Exiting... (Quit) >> root@letux:~# > > Latest patches are here: > > http://git.goldelico.com/?p=gta04-kernel.git;a=shortlog;h=refs/heads/extern/ov9655-v2 > > Device tree: > > http://git.goldelico.com/?p=gta04-kernel.git;a=blob;f=arch/arm/boot/dts/omap3-gta04.dtsi;hb=80a33790b381c83fd6e99af15cb5bd6c97abb0a7#l941 > > Any ideas how to debug 'v4l2: select timeout'? > > BR and thanks, > Nikolaus >