test_cam_ioctl.c

来自「it s a source code for how to integrate 」· C语言 代码 · 共 59 行

/* 
 * test_cam_ioctl.c 
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <ctype.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <sys/ioctl.h>

#include "userapp.h"

//#define CMD_DECODER_VIDEO_A 100

int main(int argc, char* argv[])
{
    int cam_fd;
    camif_param_t camif_cfg;

    cam_fd = open( "/dev/misc/preview", O_RDWR ); 
    if( cam_fd < 0 ) {
        printf("cam device open error!!\n");
        goto err; 
    }

    camif_cfg.dst_x = 320;
    camif_cfg.dst_y = 240;
    camif_cfg.bpp = 16;
    camif_cfg.flip = 0;

#if 0
    if( ioctl( cam_fd, CMD_CAMERA_INIT, &camif_cfg ) ) {
        printf("cam device ioctl, CMD_CAMERA_INIT error!!\n");
        goto err;
    }
#endif

    if( argv[1][0] == 'A' )  {
        if( ioctl( cam_fd, CMD_DECODER_VIDEO_A, &camif_cfg ) ) {
            printf("cam device ioctl, CMD_DECODER_VIDEO_A error!!\n");
            goto err;
        }
    }else if( argv[1][0] == 'B' )  {
        if( ioctl( cam_fd, CMD_DECODER_VIDEO_B, &camif_cfg ) ) {
            printf("cam device ioctl, CMD_DECODER_VIDEO_A error!!\n");
            goto err;
        }
    }

err:
    if( cam_fd ) close(cam_fd);

    return 0;
}