camera.c

linux下摄像头如何使用的示例代码,目前监控功能太普通了,大家可以参考一下

/*
 * MX21 Camera Library API
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Copyright (C) 2004 Motorola Semiconductors Hong Kong.
 *
 */

#include <stdlib.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <asm/mman.h>
#include <sys/mman.h>
#include <string.h>

#include "csi.h"
#include "csilib.h"
#include "im8012.h"
#include "im8012lib.h"
#include "camera.h"

static CSI_CFG g_csi_cfg;
static IM8012_CFG g_im8012_cfg;

extern void im8012_get_config(IM8012_CFG * _cfg, FILE * _fp);


void camera_run(void)
{
	im8012_standby(0);

	return;
}


void camera_stop(void)
{
	im8012_standby(1);

	return;	
}


int camera_init(FILE * _sensor_cfg_file)
{
//csi config
	csi_open();
	csi_select_config(TIMING_IMAGIC_RGB_PRP, &g_csi_cfg);
	csi_config(&g_csi_cfg);
	csi_dump_config();

//sensor config
	im8012_open();
	im8012_i2c_test();
	im8012_select_config(IM8012_RGB_QVGA, &g_im8012_cfg);
	if(_sensor_cfg_file)
		//in case using config file
		im8012_get_config(&g_im8012_cfg, _sensor_cfg_file);
	im8012_config(&g_im8012_cfg);

//printf("camera init done\n");

	return 0;
}


void camera_exit(void)
{
	im8012_close();
	csi_close();	

//printf("camera exit\n");

	return;
}


void camera_set_preview_mode(void)
{
	im8012_set_preview_mode();

//elapse for 1 frame
	csi_poll_sof();
	
	return;
}


void camera_set_capture_mode(void)
{
	im8012_set_capture_mode();

//elapse for 1 frame
	csi_poll_sof();
	
	return;	
}