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/*! @file hal-system-power-pmu.c
* @brief Issue ioctl's from methods invoked by HAL.
* @author Richard Hughes <richard@hughsie.com>
* @date 2005-12-11
*/
/*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#ifdef __linux__
#include <linux/pmu.h>
#endif
#include <libhal/libhal.h>
#define PMUDEV "/dev/pmu"
#define __u32 unsigned int
/**
* pmac_sleep:
*
* Returns: Success, TRUE or FALSE
*
* Issues a sleep ioctl
*/
static int
pmac_sleep (void)
{
#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
return FALSE; /* FIXME implement */
#elif sun
return FALSE; /* FIXME implement */
#elif __GNU__
return FALSE; /* FIXME implement */
#else
int ret;
int fd;
fd = open (PMUDEV, O_RDWR);
if (fd < 0) {
fprintf (stderr, "power-pmu : Failed to open " PMUDEV "\n");
return FALSE;
}
/* returns when machine wakes up */
ret = ioctl (fd, PMU_IOC_SLEEP, 0);
close (fd);
if (ret < 0) {
fprintf (stderr, "power-pmu : PMU_IOC_SLEEP failed\n");
return FALSE;
}
return TRUE;
#endif /* ! __FreeBSD__ */
}
/**
* pmac_get_lcd_brightness:
* @val: The returned brightness value, 0..15
*
* Returns: Success, TRUE or FALSE
*
* Gets the LCD brightness
*/
static int
pmac_get_lcd_brightness (int *val)
{
#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
return FALSE; /* FIXME implement */
#elif sun
return FALSE; /* FIXME implement */
#elif __GNU__
return FALSE; /* FIXME implement */
#else
int ret;
int fd;
fd = open (PMUDEV, O_RDWR);
if (fd < 0) {
fprintf (stderr, "power-pmu : Failed to open " PMUDEV "\n");
return FALSE;
}
ret = ioctl (fd, PMU_IOC_GET_BACKLIGHT, val);
close (fd);
if (ret < 0) {
fprintf (stderr, "power-pmu : PMU_IOC_GET_BACKLIGHT failed\n");
return FALSE;
}
return TRUE;
#endif /* ! __FreeBSD__ */
}
/**
* pmac_set_lcd_brightness:
* @val: The brightness value we want to set, 0..15
*
* Returns: Success, TRUE or FALSE
*
* Sets the LCD brightness
*/
static int
pmac_set_lcd_brightness (int val)
{
#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
return FALSE; /* FIXME implement */
#elif sun
return FALSE; /* FIXME implement */
#elif __GNU__
return FALSE; /* FIXME implement */
#else
int ret;
int fd;
fd = open (PMUDEV, O_RDWR);
if (fd < 0) {
fprintf (stderr, "power-pmu : Failed to open " PMUDEV "\n");
return FALSE;
}
ret = ioctl (fd, PMU_IOC_SET_BACKLIGHT, &val);
close (fd);
if (ret < 0) {
fprintf (stderr, "power-pmu : PMU_IOC_SET_BACKLIGHT failed\n");
return FALSE;
}
return TRUE;
#endif /* ! __FreeBSD__ */
}
/**
* usage:
* @argc: Number of arguments given to program
* @argv: Arguments given to program
*
* Print out program usage.
*/
static void
usage (int argc, char *argv[])
{
fprintf (stderr, "\nusage : hal-system-power-pmu "
"[setlcd x] [getlcd] [suspend]\n");
fprintf (stderr,
"\n"
" setlcd x Sets the LCD to a range 0..14 (0 is off)\n"
" getlcd Gets the current LCD brightness value\n"
" backlightoff Turns off the LCD backlight (setlcd turns it on again)\n"
" sleep Initiate an immediate sleep\n"
" help Show this information and exit\n"
"\n"
"This program calls PMU specific ioctls from within scripts run by HAL.\n");
}
/**
* main:
* @argc: Number of arguments given to program
* @argv: Arguments given to program
*
* @return Return code
*
* Main entry point
*/
int
main (int argc, char *argv[])
{
int brightness;
int ret;
if (argc == 2) {
if (strcmp (argv[1], "sleep") == 0) {
ret = pmac_sleep ();
if (ret == FALSE)
return EXIT_FAILURE;
return EXIT_SUCCESS;
}
if (strcmp (argv[1], "getlcd") == 0) {
ret = pmac_get_lcd_brightness (&brightness);
if (ret == FALSE)
return EXIT_FAILURE;
/* we subtract 1 as 0 is backlight disable */
printf ("%i", brightness - 1);
return EXIT_SUCCESS;
}
if (strcmp (argv[1], "backlightoff") == 0) {
ret = pmac_set_lcd_brightness (0);
if (ret == FALSE)
return EXIT_FAILURE;
return EXIT_SUCCESS;
}
} else if (argc == 3) {
if (strcmp (argv[1], "setlcd") == 0) {
/* we add 1 as 0 is backlight disable */
brightness = atoi (argv[2]) + 1;
ret = pmac_set_lcd_brightness (brightness);
if (ret == FALSE)
return EXIT_FAILURE;
return EXIT_SUCCESS;
}
}
usage (argc, argv);
return EXIT_SUCCESS;
}
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