Hi Laurent,
2014-05-16 2:45 GMT+02:00 Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>:
> Hi Mauro,
>
> The following changes since commit ba0d342ecc21fbbe2f6c178f4479944d1fb34f3b:
>
> saa7134-alsa: include vmalloc.h (2014-05-13 23:05:15 -0300)
>
> are available in the git repository at:
>
> git://linuxtv.org/pinchartl/media.git sensors/next
>
> for you to fetch changes up to a3a7145c6cecbd9752311b8ae1e431f6755ad5f3:
>
> mt9p031: Fix BLC configuration restore when disabling test pattern
> (2014-05-16 02:43:50 +0200)
>
> ----------------------------------------------------------------
> Laurent Pinchart (2):
> mt9p031: Really disable Black Level Calibration in test pattern mode
> mt9p031: Fix BLC configuration restore when disabling test pattern
>
> drivers/media/i2c/mt9p031.c | 53
> +++++++++++++++++++++++++++++++++++++++--------------
> 1 file changed, 39 insertions(+), 14 deletions(-)
>
I'm trying to test omap3-isp and a board with mt9p031 sensor with
current mainline. For now I'm using tag version 3.15 (which is close
to current mainline). First, when I tried to use the test patterns I
only saw a black screen, but after applying these two patches I saw an
improvement, although I can see the test pattern correctly.
After some modifications the subdevs_group for my board is as follows:
+static struct isp_v4l2_subdevs_group igep00x0_camera_subdevs[] = {
+ {
+ .subdevs = cam0020_primary_subdevs,
+ .interface = ISP_INTERFACE_PARALLEL,
+ .bus = {
+ .parallel = {
+ /* CAM[11:0] */
+ .data_lane_shift = ISP_LANE_SHIFT_2,
+ /* Sample on falling edge */
+ .clk_pol = 1,
+ }
+ },
+ },
+ { },
+};
As I have some problems I would ask some questions, maybe you can help me.
In the past in the data_lane_shift was ISP_LANE_SHIFT_0, but now, it
seems I should to use ISP_LANE_SHIFT_2 (CAM[11:0] - as I saw in the
include file). ISP_LANE_SHIFT_0 is for CAM[13:0] but OMAP3 has only 12
data bus signals. Is that right ?
Another thing is I'm not able to capture the image correctly, also if
if configure to ouput a test pattern, doesn't looks good. See as
example [1] and [2]. Do you know what could be the problem ?
For your information these are the pipeline that I'm using :
media-ctl -v -r -l '"mt9p031 1-005d":0->"OMAP3 ISP CCDC":0[1],
"OMAP3 ISP CCDC":2->"OMAP3 ISP preview":0[1], "OMAP3 ISP
preview":1->"OMAP3 ISP resizer":0[1], "OMAP3 ISP resizer":1->"OMAP3
ISP resizer output":0[1]'
media-ctl -v -f '"mt9p031 1-005d":0[SGRBG12 720x480], "OMAP3 ISP
CCDC":2[SGRBG8 720x480], "OMAP3 ISP preview":1[UYVY 720x480], "OMAP3
ISP resizer":1[UYVY 720x480]'
# Set Vertical Color Bars as test pattern
yavta -w '0x009f0903 9' /dev/v4l-subdev8
# Capture data with
yavta -f UYVY -s 720x480 --capture=5 --skip=1 --file=image-# /dev/video6
# And convert with
raw2rgbpnm -s 720x480 image-00000.uyuv image-00000.pnm
Thanks in advance and any help will be appreciate.
Regards,
Enric
[1] http://downloads.isee.biz/pub/files/tmp/9-Vertical Color Bars.pnm
[2] http://downloads.isee.biz/pub/files/tmp/9-Vertical Color Bars.uyvy
> --
> Regards,
>
> Laurent Pinchart
>
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