mjpeg_config.c

MJPEG Driver 3.0.1

/*
 * mjpeg_config.c
 *
 * Copyright(C) 2003 Dojip Kim <[e-mail]>
 *
 * 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; with out 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
 */

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include "ncplus_mjpeg.h"

static void usage(void);
static char read_key(void);
//static int select_video(int fd);
//static int set_register(int fd);
//static int read_value(void);

static void usage(void)
{
	printf("Choose what you want to do
		0: Reset
		q: Quit\n");
}

static char read_key(void)
{
	char buffer[BUFSIZ];
	//int  i;

	read(0, buffer, BUFSIZ);
	
	return (buffer[0]);
}

#if 0
static int select_video(int fd)
{
	unsigned long i;
	char cmd;

	printf("Select video input (0-3) :");
	fflush(stdout);
	cmd = read_key();
	switch (cmd) {
		case '0':
			i = 0;
			break;
		case '1':
			i = 1;
			break;
		case '2':
			i = 2;
			break;
		case '3': 
			i = 3;
			break;
		default:
			return -1;
	}

	ioctl(fd, SAA_IOCTSELVIDEO, i);
	
	return 0;
}

static int set_register(int fd)
{
	unsigned long arg;

	arg = (unsigned long)read_value();

	ioctl(fd, SAA_IOCTSETREG, arg);

	return 0;
}
#endif

/*
 * 0x0000 00   00
 * 0x0000[val][reg]
 */
/*
static int read_value(void)
{
	int i = 0;
	int arg = 0;

	printf ("Enter register address (hex type) : ");
	fflush (stdout);
	scanf ("%x", &i);
	//printf ("0x%02x\n", i);
	
	arg |= (i & 0xff);

	printf ("Enter register value (hex type) : ");
	fflush (stdout);
	scanf ("%x", &i);
	//printf ("0x%02x\n", i);

	arg |= ( (i & 0xff) << 8 );

	return arg;
}
*/

int main(void)
{
	int fd;
	char cmd;

#if 1
	if ((fd = open("/dev/mjpeg", O_RDWR)) < 0) {
		return -1;
	}
#endif

	while(1) {
		usage();
		printf("Enter the command : ");
		fflush(stdout);
		cmd = read_key();
		/*
		if (cmd < '0' || cmd > '9') 
			continue;
		*/
		switch(cmd) {
			case '0':
				ioctl(fd, MJPEG_IOCRESET);
				break;
			case 'q':
				exit(0);
			default:
				continue;
		}
	}

	return 0;
}