Hi Laurent, Many thanks for your time. 2012/9/25 Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>: > Hi Enric, > > On Monday 24 September 2012 15:49:01 Enric Balletbò i Serra wrote: >> 2012/9/24 Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>: >> > On Monday 24 September 2012 10:33:42 Enric Balletbò i Serra wrote: >> >> Hi everybody, >> >> >> >> I'm trying to add support for MT9V034 Aptina image sensor to current >> >> mainline, as a base of my current work I start using the latest >> >> omap3isp-next branch from Laurent's git tree [1]. The MT9V034 image >> >> sensor is very similar to MT9V032 sensor, so I modified current driver >> >> to accept MT9V034 sensor adding the chip ID. The driver recognizes the >> >> sensor and I'm able to capture some frames. >> >> >> >> I started capturing directly frames using the pipeline Sensor -> CCDC >> >> >> >> ./media-ctl -r >> >> ./media-ctl -l '"mt9v032 3-005c":0->"OMAP3 ISP CCDC":0[1]' >> >> ./media-ctl -l '"OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]' >> >> ./media-ctl -f '"mt9v032 3-005c":0 [SGRBG10 752x480]' >> >> ./media-ctl -f '"OMAP3 ISP CCDC":1 [SGRBG10 752x480]' >> >> >> >> # Test pattern >> >> ./yavta --set-control '0x00981901 1' /dev/v4l-subdev8 >> >> >> >> # ./yavta -p -f SGRBG10 -s 752x480 -n 4 --capture=3 /dev/video2 >> >> >> >> --file=img-#.bin >> >> >> >> To convert to jpg I used bayer2rgb [2] program executing following >> >> command, >> >> >> >> $ convert -size 752x480 GRBG_BAYER:./img-000000.bin img-000000.jpg >> >> >> >> And the result image looks like this >> >> >> >> http://downloads.isee.biz/pub/files/patterns/img-from-sensor.jpg >> >> >> >> Seems good, so I tried to use following pipeline Sensor -> CCDC -> >> >> Preview -> Resizer >> >> >> >> ./media-ctl -r >> >> ./media-ctl -l '"mt9v032 3-005c":0->"OMAP3 ISP CCDC":0[1]' >> >> ./media-ctl -l '"OMAP3 ISP CCDC":2->"OMAP3 ISP preview":0[1]' >> >> ./media-ctl -l '"OMAP3 ISP preview":1->"OMAP3 ISP resizer":0[1]' >> >> ./media-ctl -l '"OMAP3 ISP resizer":1->"OMAP3 ISP resizer >> >> output":0[1]' >> >> >> >> ./media-ctl -V '"mt9v032 3-005c":0[SGRBG10 752x480]' >> >> ./media-ctl -V '"OMAP3 ISP CCDC":0 [SGRBG10 752x480]' >> >> ./media-ctl -V '"OMAP3 ISP CCDC":2 [SGRBG10 752x480]' >> >> ./media-ctl -V '"OMAP3 ISP preview":1 [UYVY 752x480]' >> >> ./media-ctl -V '"OMAP3 ISP resizer":1 [UYVY 752x480]' >> >> >> >> # Set Test pattern >> >> >> >> ./yavta --set-control '0x00981901 1' /dev/v4l-subdev8 >> >> >> >> ./yavta -f UYVY -s 752x480 --capture=3 --file=img-#.uyvy /dev/video6 >> >> >> >> I used 'convert' program to pass from UYVY to jpg, >> >> >> >> $ convert -size 752x480 img-000000.uyvy img-000000.jpg >> >> >> >> and the result image looks like this >> >> >> >> http://downloads.isee.biz/pub/files/patterns/img-from-resizer.jpg >> >> >> >> As you can see, the image is wrong and I'm not sure if the problem is >> >> from the sensor, from the previewer, from the resizer or from my >> >> conversion. Anyone have idea where should I look ? Or which is the >> >> source of the problem ? >> > >> > Could you please post the output of all the above media-ctl and yavta >> > runs, as well as the captured raw binary frame ? >> >> Of course, >> >> The log configuring the pipeline Sensor -> CCDC is >> http://pastebin.com/WX8ex5x2 >> and the raw image can be found >> http://downloads.isee.biz/pub/files/patterns/img-000000.bin > > It looks like D9 and D8 have trouble keeping their high-level. Possible > reasons would be conflicts on the signal lines (with something actively > driving them to a low-level, a pull-down wouldn't have such an effect), faulty > cable/solder joints (but I doubt that), or sampling the data on the wrong > edge. In that case don't be the first image also wrong ? (the image that outputs from sensor /dev/video2) http://downloads.isee.biz/pub/files/patterns/img-from-sensor.jpg I'll investigate a bit more following this line. > The last option should be easy to test, just change the struct > isp_v4l2_subdevs_group::bus::parallel::clk_pol field. I tested and seems this is not the problem. > >> And the log configuring the pipeline Sensor -> CCDC -> Previewer -> Resizer >> is http://pastebin.com/wh5ZJwne >> and the raw image can be found >> http://downloads.isee.biz/pub/files/patterns/img-000000.uyvy >> >> >> [1] >> >> http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp- >> >> omap3isp-next >> >> [2] https://github.com/jdthomas/bayer2rgb > > -- > Regards, > > Laurent Pinchart > Regards, Enric -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
