Hi,
On 27.04.2016 08:05, Ivaylo Dimitrov wrote:
Hi,
On 27.04.2016 06:08, Sebastian Reichel wrote:
Hi,
On Mon, Apr 25, 2016 at 12:08:00AM +0300, Ivaylo Dimitrov wrote:
Those patch series make cameras on Nokia N900 partially working.
Some more patches are needed, but I've already sent them for
upstreaming so they are not part of the series:
https://lkml.org/lkml/2016/4/16/14
https://lkml.org/lkml/2016/4/16/33
As omap3isp driver supports only one endpoint on ccp2 interface,
but cameras on N900 require different strobe settings, so far
it is not possible to have both cameras correctly working with
the same board DTS. DTS patch in the series has the correct
settings for the front camera. This is a problem still to be
solved.
The needed pipeline could be made with:
media-ctl -r
media-ctl -l '"vs6555 binner 2-0010":1 -> "video-bus-switch":2 [1]'
media-ctl -l '"video-bus-switch":0 -> "OMAP3 ISP CCP2":0 [1]'
media-ctl -l '"OMAP3 ISP CCP2":1 -> "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 '"vs6555 pixel array 2-0010":0 [SGRBG10/648x488
(0,0)/648x488 (0,0)/648x488]'
media-ctl -V '"vs6555 binner 2-0010":1 [SGRBG10/648x488 (0,0)/648x488
(0,0)/648x488]'
media-ctl -V '"OMAP3 ISP CCP2":0 [SGRBG10 648x488]'
media-ctl -V '"OMAP3 ISP CCP2":1 [SGRBG10 648x488]'
media-ctl -V '"OMAP3 ISP CCDC":2 [SGRBG10 648x488]'
media-ctl -V '"OMAP3 ISP preview":1 [UYVY 648x488]'
media-ctl -V '"OMAP3 ISP resizer":1 [UYVY 656x488]'
and tested with:
mplayer -tv
driver=v4l2:width=656:height=488:outfmt=uyvy:device=/dev/video6 -vo
xv -vf screenshot tv://
4.6-rc4 + twl regulator patch + the patches mentioned above + this
patchset (I put everything together here [0]) do _not_ work for me.
The error matches what I have seen when I was working on it: No
image data seems to be received by the ISP. For example there are
no related IRQs:
root@n900:~# cat /proc/interrupts | grep ISP
40: 0 INTC 24 Edge 480bd400.mmu, OMAP3 ISP
I tested with mpv and yavta (yavta --capture=8 --pause --skip 0
--format UYVY --size 656x488 /dev/video6)
[0]
https://git.kernel.org/cgit/linux/kernel/git/sre/linux-n900.git/log/?h=n900-camera-ivo
Ok, going to diff with my tree to see what I have missed to send in the
patchset
Now, that's getting weird.
I cloned n900-camera-ivo, copied rx51_defconfig from my tree, added:
CONFIG_VIDEO_SMIAREGS=m
CONFIG_VIDEO_ET8EK8=m
CONFIG_VIDEO_BUS_SWITCH=m
to it, make mrproper, built the kernel using rx51_defconfig and made
initrd for rescueos, so to be sure that maemo5 did not influence cameras
somehow.
Booted the device with flasher3.5:
sudo flasher-3.5 -k zImage -n ramfs -l -b"rootdelay root=/dev/ram0
mtdoops.mtddev=log log_buf_len=1M"
ivo@ivo-H81M-S2PV:~/maemo/rescueos$ sudo ifconfig usb0 192.168.2.14
ivo@ivo-H81M-S2PV:~/maemo/rescueos$ telnet 192.168.2.15
Trying 192.168.2.15...
Connected to 192.168.2.15.
Escape character is '^]'.
rescueos login: root
Password:
~$ modprobe smiapp
~$ cd /camera/
/camera$ export LD_LIBRARY_PATH=./
/camera$ ./media-ctl -r
/camera$ ./media-ctl -l '"vs6555 binner 2-0010":1 ->
"video-bus-switch":2 [1]'
/camera$ ./media-ctl -l '"video-bus-switch":0 -> "OMAP3 ISP CCP2":0 [1]'
/camera$ ./media-ctl -l '"OMAP3 ISP CCP2":1 -> "OMAP3 ISP CCDC":0 [1]'
/camera$ ./media-ctl -l '"OMAP3 ISP CCDC":2 -> "OMAP3 ISP preview":0 [1]'
/camera$ ./media-ctl -l '"OMAP3 ISP preview":1 -> "OMAP3 ISP resizer":0 [1]'
/camera$ ./media-ctl -l '"OMAP3 ISP resizer":1 -> "OMAP3 ISP resizer
output":0 [1]'
/camera$ ./media-ctl -V '"vs6555 pixel array 2-0010":0 [SGRBG10/648x488
(0,0)/648x488 (0,0)/648x488]'
/camera$ ./media-ctl -V '"vs6555 binner 2-0010":1 [SGRBG10/648x488
(0,0)/648x488 (0,0)/648x488]'
/camera$ ./media-ctl -V '"OMAP3 ISP CCP2":0 [SGRBG10 648x488]'
/camera$ ./media-ctl -V '"OMAP3 ISP CCP2":1 [SGRBG10 648x488]'
/camera$ ./media-ctl -V '"OMAP3 ISP CCDC":2 [SGRBG10 648x488]'
/camera$ ./media-ctl -V '"OMAP3 ISP preview":1 [UYVY 648x488]'
/camera$ ./media-ctl -V '"OMAP3 ISP resizer":1 [UYVY 656x488]'
/camera$ ./yavta --capture=8 --pause --skip 0 --format UYVY --size
656x488 /dev/video6
Device /dev/video6 opened.
Device `OMAP3 ISP resizer output' on `media' is a video capture device.
Video format set: UYVY (59565955) 656x488 (stride 1312) buffer size 640256
Video format: UYVY (59565955) 656x488 (stride 1312) buffer size 640256
8 buffers requested.
length: 640256 offset: 0 timestamp type: monotonic
Buffer 0 mapped at address 0xb6de5000.
length: 640256 offset: 643072 timestamp type: monotonic
Buffer 1 mapped at address 0xb6d48000.
length: 640256 offset: 1286144 timestamp type: monotonic
Buffer 2 mapped at address 0xb6cab000.
length: 640256 offset: 1929216 timestamp type: monotonic
Buffer 3 mapped at address 0xb6c0e000.
length: 640256 offset: 2572288 timestamp type: monotonic
Buffer 4 mapped at address 0xb6b71000.
length: 640256 offset: 3215360 timestamp type: monotonic
Buffer 5 mapped at address 0xb6ad4000.
length: 640256 offset: 3858432 timestamp type: monotonic
Buffer 6 mapped at address 0xb6a37000.
length: 640256 offset: 4501504 timestamp type: monotonic
Buffer 7 mapped at address 0xb699a000.
Press enter to start capture
0 (0) [-] 0 640256 bytes 211.742779 211.742932 28.518 fps
1 (1) [-] 1 640256 bytes 211.808148 211.808331 15.298 fps
2 (2) [-] 2 640256 bytes 211.873547 211.873669 15.291 fps
3 (3) [-] 3 640256 bytes 211.938946 211.939099 15.291 fps
4 (4) [-] 4 640256 bytes 212.004345 212.004498 15.291 fps
5 (5) [-] 5 640256 bytes 212.069714 212.069836 15.298 fps
6 (6) [-] 6 640256 bytes 212.135113 212.135296 15.291 fps
7 (7) [-] 7 640256 bytes 212.200512 212.200665 15.291 fps
Captured 8 frames in 0.492950 seconds (16.228812 fps, 10390594.234990 B/s).
8 buffers released.
/camera$ cat /proc/interrupts | grep ISP
40: 30 INTC 24 Edge 480bd400.mmu, OMAP3 ISP
41: 0 INTC 25 Edge OMAP DISPC
/camera$ uname -a
Linux rescueos 4.6.0-rc4+ #1 PREEMPT Wed Apr 27 08:55:02 EEST 2016
armv7l GNU/Linux
I you want to try it, zImage and initrd are on
http://46.249.74.23/linux/camera-n900/
Please, Sebastian and Pavel, make sure you're not using some development
devices, old board versions need VAUX3 enabled as well, and this is not
supported in the $subject patchset. I guess you may try to make VAUX3
always-on in board DTS if that's the case, but I've never tested that,
my device is a production one.
Thanks,
Ivo
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