gd32450i-eval/app/test_app/test.c

/* include path: ..../A2F/root/usr/include */

#include <stdio.h>
#include <fcntl.h>
#include <linux/types.h>
//#include <linux/jiffies.h>
#include <unistd.h>

typedef unsigned char uint8_t;
typedef unsigned long uint32_t;

typedef struct {
	uint32_t address;
	uint8_t	 data;
} cpld_t;

typedef struct {
	uint32_t	clockspeed;
	uint32_t	ownAddr;
	uint8_t DevAddr;
	uint8_t buf[100];
	uint8_t Size;	
} i2c_arg_t;


#define  GENERATE_CMD(__MAGIC__, __MAJOR__, __CMD__) \
	((0x3<<30) | (__MAJOR__<<16) | (__MAGIC__<<8) | __CMD__)

#define SET_ADDR GENERATE_CMD('x', 101, 2)
#define TRANSFER GENERATE_CMD('x', 101, 4)
#define MASTER_RCV GENERATE_CMD('x', 101, 5)
#define SLAVE_RCV GENERATE_CMD('x', 101, 6)
int main()
{
/*	//FMC test app
	cpld_t cpld_arg;
	printf("This is test app!\n");
	int fd;
	fd = open("/dev/fmc_cpld", O_RDWR);
	if(fd == NULL)
		printf("Open failed\n");

	cpld_arg.address = 0x64000000;
	cpld_arg.data = 0x55;
	ioctl(fd, 0, &cpld_arg);
	cpld_arg.data = 0;
	ioctl(fd, 1, &cpld_arg);
	printf("Read from cpld: %#x\n", cpld_arg.data);

	close(fd);
*/
	
/*	//gpio interrup test app
	int fd;
	uint8_t buf;
	int ret = 0;
	fd = open("/dev/test_module", O_RDWR);
	if(fd == NULL)
		printf("open failed\n");
	while(1)
	{
		ret = read(fd, &buf, 1);
		printf("test app read %#x\n", buf);
	}

	close(fd);*/

	int fd;
	int i;
	i2c_arg_t i2c_arg;
	fd = open("/dev/i2c1", O_RDWR);
	if(fd == NULL)
		printf("open failed\n");

	i2c_arg.ownAddr = 0;
	i2c_arg.DevAddr = 0x92;
	i2c_arg.buf[0] = 1;
	i2c_arg.buf[1] = 2;
	i2c_arg.buf[2] = 3;
	i2c_arg.Size	= 0;
	while(1)
	{
	//	ioctl(fd, 1, &i2c_arg);	//get speed
	//	printf("speed: %d\n", i2c_arg.clockspeed);
	//	sleep(1);
	//	
	//	i2c_arg.clockspeed = 400000;
	//	ioctl(fd, 0, &i2c_arg);	//set speed
	//	sleep(1);
	//	
//		ioctl(fd, 3, &i2c_arg);	//get addr
//		printf("addr: %#x\n", i2c_arg.ownAddr);
//		sleep(1);
		
//		i2c_arg.ownAddr = 0x42;
//		ioctl(fd, SET_ADDR, &i2c_arg);	//set addr
//		sleep(1);

//		ioctl(fd, MASTER_RCV, &i2c_arg);
//		printf("Read: %#x, %#x\n", i2c_arg.buf[0], i2c_arg.buf[1]);
		//	sleep(1);
		
		ioctl(fd, SLAVE_RCV, &i2c_arg);
		printf("\ni2c1 rec: ");
		for(i=0;i<i2c_arg.Size;i++)
			printf("%#x ", i2c_arg.buf[i]);
		printf("\n");

	}
	
	close(fd);
	
	
	
	return 0;
}