Diff of /trunk/mkinitrd-magellan/busybox/util-linux/rtcwake.c

Parent Directory | Revision Log | Patch

	revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC	revision 984 by niro, Sun May 30 11:32:42 2010 UTC
#	Line 3	Line 3
3	*	*
4	* This version was taken from util-linux and scrubbed down for busybox.	* This version was taken from util-linux and scrubbed down for busybox.
5	*	*
6		* Licensed under GPLv2, see file LICENSE in this tarball for details.
7		*
8	* This uses cross-platform Linux interfaces to enter a system sleep state,	* This uses cross-platform Linux interfaces to enter a system sleep state,
9	* and leave it no later than a specified time.  It uses any RTC framework	* and leave it no later than a specified time.  It uses any RTC framework
10	* driver that supports standard driver model wakeup flags.	* driver that supports standard driver model wakeup flags.
#	Line 28	Line 30
30	#define SYS_POWER_PATH "/sys/power/state"	#define SYS_POWER_PATH "/sys/power/state"
31	#define DEFAULT_MODE   "standby"	#define DEFAULT_MODE   "standby"
32
33	static time_t rtc_time;	static NOINLINE bool may_wakeup(const char *rtcname)
	static bool may_wakeup(const char *rtcname)
34	{	{
35	ssize_t ret;	ssize_t ret;
36	char buf[128];	char buf[128];
#	Line 48  static bool may_wakeup(const char *rtcna	Line 48  static bool may_wakeup(const char *rtcna
48	return strncmp(buf, "enabled\n", 8) == 0;	return strncmp(buf, "enabled\n", 8) == 0;
49	}	}
50
51	static void setup_alarm(int fd, time_t *wakeup)	static NOINLINE void setup_alarm(int fd, time_t *wakeup, time_t rtc_time)
52	{	{
53	struct tm *tm;	struct tm *ptm;
54	struct linux_rtc_wkalrm wake;	struct linux_rtc_wkalrm wake;
55
56	/* The wakeup time is in POSIX time (more or less UTC).	/* The wakeup time is in POSIX time (more or less UTC).
#	Line 63  static void setup_alarm(int fd, time_t *	Line 63  static void setup_alarm(int fd, time_t *
63	* Else mode is local so the time given to the RTC	* Else mode is local so the time given to the RTC
64	* will instead use the local time zone.	* will instead use the local time zone.
65	*/	*/
66	tm = localtime(wakeup);	ptm = localtime(wakeup);
67
68	wake.time.tm_sec = tm->tm_sec;	wake.time.tm_sec = ptm->tm_sec;
69	wake.time.tm_min = tm->tm_min;	wake.time.tm_min = ptm->tm_min;
70	wake.time.tm_hour = tm->tm_hour;	wake.time.tm_hour = ptm->tm_hour;
71	wake.time.tm_mday = tm->tm_mday;	wake.time.tm_mday = ptm->tm_mday;
72	wake.time.tm_mon = tm->tm_mon;	wake.time.tm_mon = ptm->tm_mon;
73	wake.time.tm_year = tm->tm_year;	wake.time.tm_year = ptm->tm_year;
74	/* wday, yday, and isdst fields are unused by Linux */	/* wday, yday, and isdst fields are unused by Linux */
75	wake.time.tm_wday = -1;	wake.time.tm_wday = -1;
76	wake.time.tm_yday = -1;	wake.time.tm_yday = -1;
#	Line 100  static void setup_alarm(int fd, time_t *	Line 100  static void setup_alarm(int fd, time_t *
100	int rtcwake_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;	int rtcwake_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
101	int rtcwake_main(int argc UNUSED_PARAM, char **argv)	int rtcwake_main(int argc UNUSED_PARAM, char **argv)
102	{	{
103		time_t rtc_time;
104
105	unsigned opt;	unsigned opt;
106	const char *rtcname = NULL;	const char *rtcname = NULL;
107	const char *suspend;	const char *suspend;
#	Line 112  int rtcwake_main(int argc UNUSED_PARAM,	Line 114  int rtcwake_main(int argc UNUSED_PARAM,
114	int utc = -1;	int utc = -1;
115	int fd;	int fd;
116
117	#if ENABLE_GETOPT_LONG	#if ENABLE_LONG_OPTS
118	static const char rtcwake_longopts[] ALIGN1 =	static const char rtcwake_longopts[] ALIGN1 =
119	"auto\0"    No_argument "a"	"auto\0"    No_argument "a"
120	"local\0"   No_argument "l"	"local\0"   No_argument "l"
#	Line 139  int rtcwake_main(int argc UNUSED_PARAM,	Line 141  int rtcwake_main(int argc UNUSED_PARAM,
141	seconds = xatoi(opt_seconds);	seconds = xatoi(opt_seconds);
142	if (opt & RTCWAKE_OPT_TIME)	if (opt & RTCWAKE_OPT_TIME)
143	/* alarm time, time_t (absolute, seconds since 1/1 1970 UTC) */	/* alarm time, time_t (absolute, seconds since 1/1 1970 UTC) */
144	alarm_time = xatoi(opt_time);	alarm_time = xatol(opt_time);
145
146	if (!alarm_time && !seconds)	if (!alarm_time && !seconds)
147	bb_error_msg_and_die("must provide wake time");	bb_error_msg_and_die("must provide wake time");
#	Line 157  int rtcwake_main(int argc UNUSED_PARAM,	Line 159  int rtcwake_main(int argc UNUSED_PARAM,
159	bb_error_msg_and_die("%s not enabled for wakeup events", rtcname);	bb_error_msg_and_die("%s not enabled for wakeup events", rtcname);
160
161	/* relative or absolute alarm time, normalized to time_t */	/* relative or absolute alarm time, normalized to time_t */
162	sys_time = time(0);	sys_time = time(NULL);
163	if (sys_time == (time_t)-1)	{
164	bb_perror_msg_and_die("read system time");	struct tm tm_time;
165	rtc_time = rtc_read_time(fd, utc);	rtc_read_tm(&tm_time, fd);
166		rtc_time = rtc_tm2time(&tm_time, utc);
167		}
168
169
170	if (alarm_time) {	if (alarm_time) {
171	if (alarm_time < sys_time)	if (alarm_time < sys_time)
#	Line 168  int rtcwake_main(int argc UNUSED_PARAM,	Line 173  int rtcwake_main(int argc UNUSED_PARAM,
173	alarm_time += sys_time - rtc_time;	alarm_time += sys_time - rtc_time;
174	} else	} else
175	alarm_time = rtc_time + seconds + 1;	alarm_time = rtc_time + seconds + 1;
176	setup_alarm(fd, &alarm_time);	setup_alarm(fd, &alarm_time, rtc_time);
177
178	sync();	sync();
179	printf("wakeup from \"%s\" at %s", suspend, ctime(&alarm_time));	printf("wakeup from \"%s\" at %s", suspend, ctime(&alarm_time));
180	fflush(stdout);	fflush_all();
181	usleep(10 * 1000);	usleep(10 * 1000);
182
183	if (strcmp(suspend, "on"))	if (strcmp(suspend, "on"))

---

Colored Diff Long Colored Diff Full Colored Diff Unidiff Context Diff Side by Side

Legend: Removed from v.983   changed lines   Added in v.984