test.c

arm下的lcd的测试 程序

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>

int main(void)
{
    unsigned char ctrl1 = 0x00;
    unsigned char ctrl2 = 0x11;
    unsigned char row = 0x00;
    unsigned char listh = 0x00;
    unsigned char listl = 0x00;
    unsigned char data1 =0xe0;
    unsigned char data2 =0x2f;
    int i, j, fd, fd_file;
    unsigned char buf[214][318];

    fd_file = open("/home/test.bin", O_RDWR);
    if(fd_file < 0) {
	printf("open \"/home/test.bin\" failed!!!\n");
	return -1;
    }
    lseek(fd_file, 4, SEEK_CUR);
    for(i = 0; i < 214; i++) {
	read(fd_file, buf[i], 318);
    }
    
    
    fd =open("/dev/lcd", O_RDWR);
    if(fd < 0) {
	printf("open \"/dev/lcd\" failed!!!\n");
	return -1;
    }

    ioctl(fd, 1, &ctrl1);
    ioctl(fd, 2, &row);
    ioctl(fd, 3, &listh);
    ioctl(fd, 3, &listl);
    ioctl(fd, 4, &data1);
    
    row = 0x08;
    listl = 0x01;
    for(i = 0; i < 214; i++) {
	ioctl(fd, 2, &row);
	ioctl(fd, 3, &listh);
	ioctl(fd, 3, &listl);
	for(j = 0; j < 318; j++) {
	    write(fd, &buf[i][j], 1);
	}
	row = row + 0x01;
    }

    row = 0x00;
    listl = 0x00;
    ioctl(fd, 1, &ctrl2);
    ioctl(fd, 2, &row);
    ioctl(fd, 3, &listh);
    ioctl(fd, 3, &listl);
    ioctl(fd, 4, &data2);

    row = 0xe0;
    listl = 0x01;

    for(i = 0; i < 214; i++) {
	ioctl(fd, 2, &row);
	ioctl(fd, 3, &listh);
	ioctl(fd, 3, &listl);
	for(j = 0; j < 318; j++) {
	    write(fd, &buf[i][j], 1);
	}
	row = row - 0x01;
    }

    for(i = 0; i < 30; i++)
    {
	ioctl(fd, 1, &ctrl1);
	sleep(2);
	ioctl(fd, 1, &ctrl2);
	sleep(2);
    }

    return 0;
}