topic Re: MIPI CSI-2 camera input on iMX6Q in i.MX Processors

MIPI CSI-2 camera input on iMX6Q

hyunhoshin — Tue, 26 Feb 2013 11:57:31 GMT

I'm using iMX6Q custom board(base on mx6q_sabresd)

8mega pixel(3264x2448) MIPI CSI-2 camera input

camera module output is 3264x2446@11fps, UYVY

I can get only below 1024 x 1024 size image via V4L2 interface.

(i couldn't get 1920x1080 or 3264x2448 pixel size image)

i don't know what is wrong...

I'm using 3.0.15 kernel..

help me... please...

Original Attachment has been moved to: v4l_sample_app.zip

Re: MIPI CSI-2 camera input on iMX6Q

LeonardoSandova — Tue, 26 Feb 2013 23:39:47 GMT

could you show the command you are using to capture the data?

Re: MIPI CSI-2 camera input on iMX6Q

hyunhoshin — Wed, 27 Feb 2013 00:20:06 GMT

I attached v4l2 sample application("v4l_sample_app.zip")

this application work fine with UVC camera

you see only "capture_raw_frames.c" in zip file

command line is : $ ./capture_test -c 5 -w 3264 -e 2400 -o

(option description -c [capture frame number] -w [output image width] -e [output image height] -o(output to yuv file)

Re: MIPI CSI-2 camera input on iMX6Q

yossishukron — Tue, 09 Apr 2013 23:48:24 GMT

-m i is defining the sensor resolution did you try to use it ?

Re: MIPI CSI-2 camera input on iMX6Q

karina_valencia — Fri, 19 Apr 2013 15:57:49 GMT

LeonardoSandovalGonzalez / hyunhoshin can you answer the question from Yossi?

Re: MIPI CSI-2 camera input on iMX6Q

hyunhoshin — Mon, 22 Apr 2013 01:15:07 GMT

i try to -m option but it's same result.

Re: MIPI CSI-2 camera input on iMX6Q

yossishukron — Mon, 22 Apr 2013 03:29:03 GMT

those are the options for -m which one did you try.

VGA_640_480 -iw 640 -ih 480 -m 0

QVGA_320_240 -iw 320 -ih 240 -m 1

NTSC_720_480 -iw 720 -ih 480 -m 2

PAL_720_576 -iw 720 -ih 576 -m 3

720P_1280_720 -iw 1280 -ih 720 -m 4

1080P_1920_1080 -iw 1920 -ih 1080 -m 5

QSXGA_2592_1944 -iw 2592 -ih 1944 -m 6

QCIF_176_144 -iw 176 -ih144 -m 7

XGA_1024_768 -iw 1024 -ih 768 -m 8

did you check if the CSI registers change ?

CSI_SENS_FRM_SIZE_ suppose to change.

Re: MIPI CSI-2 camera input on iMX6Q

hyunhoshin — Fri, 10 May 2013 01:04:17 GMT

this problem is solved

it was problem of IC(Image Converter) limitation.

i can get more than 1024 x 1024 pixel image without IC

thanks for your concern

Re: MIPI CSI-2 camera input on iMX6Q

johnturnur — Mon, 13 May 2013 06:38:44 GMT

Hi,

hyunho shin

What changes does it requires to do this?

Can you provide the patch?

Re: MIPI CSI-2 camera input on iMX6Q

hyunhoshin — Mon, 13 May 2013 11:23:35 GMT

Hi john,

you can disable IC(Image Converter) by below code

struct v4l2_control ctrl;

ctrl.id = V4L2_CID_MXC_SWITCH_CAM;

ctrl.value = 1;

ioctl(fd, VIDIOC_S_CTRL, &ctrl);

fd is device number of v4l2 camera device node

(also "ctrl.value = 0" is enable IC)

good luck!

Re: MIPI CSI-2 camera input on iMX6Q

yingtaoqian — Thu, 10 May 2018 08:24:12 GMT

Thinks！

This's I need.