i2c-test.c

cmmb if101 linux driver sample

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>  
#include <signal.h>
#include <string.h>
#include "innoaccess.h"

void sighandler(int signo)
{    
	if (signo==SIGINT){
		printf("SIGINT occurs.\r\n");
	}
	return;
}

int main(int argc, char **argv)
{
	int fd;
	int ret;
	int i;
	inno_reg_t reg_data={0};
	unsigned char bank = 0;
	char* endptr;
	struct sigaction action;

	printf("argc == %d", argc);

	if(argc < 3){
		printf("usage:\n");
		printf("read register data:\t%s -r reg\r\n", argv[0]);
		printf("write register data:\t%s -w reg data\r\n", argv[0]);
		printf("read bank registers data:\t%s -br bank\r\n", argv[0]);
	//	return 0;
	}
	printf("DEV_NAME = %s", DEV_NAME);
	fd = open(DEV_NAME, O_RDWR);
	if(fd == -1){
		printf("open failed.\r\n");
		return -1;
	}
    memset(&action, 0, sizeof(action));    
	action.sa_handler = sighandler;
	action.sa_flags = 0;
	sigaction(SIGINT, &action, NULL);

	if(strcmp(argv[1], "-r")==0){
		reg_data.reg = (unsigned short)strtoul(argv[2], &endptr, 0);
		printf("R%x ", reg_data.reg);
		ret = ioctl(fd, INNO_READ_REG, (long*)&reg_data);
		printf("= %x.\n",  reg_data.data);
	}else if(strcmp(argv[1], "-br")==0){
		bank = (unsigned short)strtoul(argv[2], &endptr, 0);
		for(i=0; i<0xFF; i++){
			reg_data.reg = REG_ADDR(bank, i);
			printf("R%x ", reg_data.reg);
			ret = ioctl(fd, INNO_READ_REG, (long*)&reg_data);
			printf("= %x.\n", reg_data.data);
		}
	}else if(strcmp(argv[1], "-w")==0){
		reg_data.reg = (unsigned short)strtoul(argv[2], &endptr, 0);
		reg_data.data = (unsigned char)strtoul(argv[3], &endptr, 0);
		ret = ioctl(fd, INNO_WRITE_REG, (long*)&reg_data); 
	}
printf("close..\r\n");	
	close(fd);

	return 0;
}