Implementation of Video 4 Linux interface for embedded systems based on Samsung S3C2440 CPU

Building & Installing

• obtain ARM-Linux GCC 4.3.2 and Linux 2.6.29 from FriendlyARM
• setup environment variables CC,CPP etc, use this as a reference
• compile linux kernel , without S3C2440_CAMERA ( find line CONFIG_S3C2440_CAMERA=y and replace with CONFIG_S3C2440_CAMERA=m)
• install new kernel
• compile new camera module , make KERNELDIR=<whenever you have linux kernel>
• (optional) compile test program make test_capture
• (optional) compile tiff capture program make tiff_capture TIFFDIR=<where you have libtiff>
• copy kernel module s3c2440camera.ko to mini2440
• load kernel module insmod s3c2440camera.ko
• run the test capture program: ./test_capture /dev/video0 <width> <height> <filename base> [number of frames]
• Output of a sample session:

[root@FriendlyARM /] insmod s3c2440camera.ko 
Loading OV9650 driver.........
SCCB address 0x60, manufacture ID 0x7FA2, expect 0x7FA2
SCCB address 0x60, product ID 0x9652, expect 0x9650
OV9650 setting format 1  640x480 126 parameters!
ov9650 init done!
[root@FriendlyARM /]# ./test_capture /dev/video0 640 480 test 10  
OV9650 setting format 0  1280x1024 125 parameters!
OV9650 setting format 1  640x480 126 parameters!
Goint to capture frames 640 x 480 format: 422P framesize: 614400
About to capture 10 images to test
**********
29.886700 fps, Saving collectected frames...
0	1	2	3	4	5	6	7	8	9	

Prebuild binaries

• Prebuild binaries based on r1 ara available: kernel , s3c2440camera.ko
• mjpg-streamer adopted for mini2440 : mjpg-streamer-mini2440