/* Created by (C) Chester Kuo <chester@linux.org.tw>,released under GPL
 * , drived from sa1100_frontligt.c!
 *
 * Test the LCD backlight/contrast[/frontlight] driver. 
 */

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

#include "sa1100_frontlight.h"

int main(void) {

	int i, fd, retval;
	int temp;
   fd = open ("/dev/sa1100-fl", O_WRONLY);

   if (fd ==  -1) {
     perror("/dev/sa1100-fl");
     exit(errno);
   }

   printf("\n\t\t\tFrontlight Driver Test Example.\n\n");

   for (i=0; i<5; i++) {
     printf("Turning OFF Frontlight...\n");
     retval = ioctl(fd, _SA1100_FL_IOCTL_OFF, 0);
     if (retval == -1) {
       perror("ioctl");
       exit(errno);
     }

     sleep(1);


     printf("Turning ON Frontlight...\n");
     retval = ioctl(fd, _SA1100_FL_IOCTL_ON, 0);
     if (retval == -1) {
       perror("ioctl");
       exit(errno);
     }

     sleep(1);

   }

#if 0
   printf("Turning OFF Frontlight...\n");
   retval = ioctl(fd, _SA1100_FL_IOCTL_OFF, 0);
   if (retval == -1) {
     perror("ioctl");
     exit(errno);
   }
#endif
  
   printf("Testing the backlight from 1 to 100\n");
	for (temp=0;temp<=100;temp++)
	retval = ioctl(fd,_SA1100_FL_IOCTL_BACKLIGHT,temp);
   if (retval == -1) {
      perror("error in ioctl at setting backlight\n");
	exit(errno);
    }

	printf("Test the contrast from 1 to 100\n");
        for (temp=0;temp<=100;temp++)
    	retval = ioctl(fd,_SA1100_FL_IOCTL_CONTRAST,temp);
    if (retval == -1) {
 	perror("error in ioctl at contrast \n");
	exit(errno);
     }

   fprintf(stderr, "Done.\n");

 }