/*********************************************
 * Benjamin Krill <ben@codiert.org>
 *********************************************/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <libfpga.h>

int
main(int argv, char **argc)
{
	int fd, sta, rnd, i;
	char *c, buf[4];

	if ((fd = open("tdat", O_RDONLY, 0)) == -1 ) {
		printf("ERROR-1: %s\n", strerror(errno));
		return -1;
	}

	if (fpgafs_create_context(fd, "dbg") == -1) {
		printf("ERROR-2: Cannot create fpgafs context\n");
		close(fd);
		return -1;
	}

//	while (fpgafs_get_stat() < 0x10) {
	for(i=0; i < 10; i++) {
		rnd = rand();
		c = (char *)&rnd;
		printf("write data: %x\n",c[0], c[1], c[2], c[3]);
		if ((sta=fpgafs_send_data(&c[0], 4)) != 4) {
			printf("ERROR-3: Cannot send specified length (%d)\n", sta);
			return -1;
		}

		if ((sta=fpgafs_recv_data(&c[0], 4)) != 4) {
			printf("ERROR-3: Cannot send specified length (%d)\n", sta);
			return -1;
		}
		printf("read data: %x\n",buf[0], buf[1], buf[2], buf[3]);
	}
	return 0;
}