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#include <hardware_legacy/flashlight.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "qemu.h"
#define FLASHLIGHT "/sys/class/leds/spotlight/brightness"
#define CAMERA_FLASH "/sys/class/timed_output/flash/enable"
#ifdef QEMU_HARDWARE
int qemu_get_flashlight_enabled()
{
char question[256];
char answer[256];
int len;
len = qemu_command_format( question, sizeof question,
"get_flashlight_enabled" );
len = qemu_control_query( question, len, answer, sizeof answer );
if (len <= 0) return 0;
/* we expect an answer of 0 or 1 */
return (answer[0] == '1');
}
int qemu_set_flashlight_enabled(int on)
{
return qemu_control_command( "set_flashlight_enabled:%d", on );
}
int qemu_enable_camera_flash(int milliseconds)
{
return qemu_control_command( "enable_camera_flash:%d", milliseconds );
}
#endif
int get_flashlight_enabled()
{
int fd;
int ret = 0;
char value;
QEMU_FALLBACK(get_flashlight_enabled());
fd = open(FLASHLIGHT, O_RDONLY);
if(fd && read(fd, &value, 1) == 1) {
ret = (value == '1');
}
close(fd);
return ret;
}
int set_flashlight_enabled(int on)
{
int nwr, ret, fd;
char value[20];
QEMU_FALLBACK(set_flashlight_enabled(on));
fd = open(FLASHLIGHT, O_RDWR);
if(fd < 0)
return errno;
nwr = sprintf(value, "%d\n", !!on);
ret = write(fd, value, nwr);
close(fd);
return (ret == nwr) ? 0 : -1;
}
int enable_camera_flash(int milliseconds)
{
int nwr, ret, fd;
char value[20];
QEMU_FALLBACK(enable_camera_flash(milliseconds));
fd = open(CAMERA_FLASH, O_RDWR);
if(fd < 0)
return errno;
nwr = sprintf(value, "%d\n", milliseconds);
ret = write(fd, value, nwr);
close(fd);
return (ret == nwr) ? 0 : -1;
}
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