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am 796be8f1: am b1a82bcb: am f1da46d2: am d27498cb: Merge "toolbox: date: use RTC subsystem on devices without /dev/alarm"

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* commit '796be8f1432fd02d83f2dae9dbcf11a0976df3b5':
  toolbox: date: use RTC subsystem on devices without /dev/alarm
This commit is contained in:
Greg Hackmann 2013-12-18 00:35:07 +00:00 committed by Android Git Automerger
commit 2f77ecb813
1 changed files with 80 additions and 14 deletions
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94
toolbox/date.c
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@ -6,15 +6,87 @@
#include <errno.h>
#include <time.h>
#include <linux/android_alarm.h>
#include <linux/rtc.h>
#include <sys/ioctl.h>
static int settime_alarm(struct timespec *ts) {
int fd, ret;
fd = open("/dev/alarm", O_RDWR);
if (fd < 0)
return fd;
ret = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
close(fd);
return ret;
}
static int settime_alarm_tm(struct tm *tm) {
time_t t;
struct timespec ts;
t = mktime(tm);
ts.tv_sec = t;
ts.tv_nsec = 0;
return settime_alarm(&ts);
}
static int settime_alarm_timeval(struct timeval *tv) {
struct timespec ts;
ts.tv_sec = tv->tv_sec;
ts.tv_nsec = tv->tv_usec * 1000;
return settime_alarm(&ts);
}
static int settime_rtc_tm(struct tm *tm) {
int fd, ret;
struct timeval tv;
struct rtc_time rtc;
fd = open("/dev/rtc0", O_RDWR);
if (fd < 0)
return fd;
tv.tv_sec = mktime(tm);
tv.tv_usec = 0;
ret = settimeofday(&tv, NULL);
if (ret < 0)
goto done;
memset(&rtc, 0, sizeof(rtc));
rtc.tm_sec = tm->tm_sec;
rtc.tm_min = tm->tm_min;
rtc.tm_hour = tm->tm_hour;
rtc.tm_mday = tm->tm_mday;
rtc.tm_mon = tm->tm_mon;
rtc.tm_year = tm->tm_year;
rtc.tm_wday = tm->tm_wday;
rtc.tm_yday = tm->tm_yday;
rtc.tm_isdst = tm->tm_isdst;
ret = ioctl(fd, RTC_SET_TIME, rtc);
done:
close(fd);
return ret;
}
static int settime_rtc_timeval(struct timeval *tv) {
struct tm tm, *err;
time_t t = tv->tv_sec;
err = gmtime_r(&t, &tm);
if (!err)
return -1;
return settime_rtc_tm(&tm);
}
static void settime(char *s) {
struct tm tm;
int day = atoi(s);
int hour;
time_t t;
int fd;
struct timespec ts;
while (*s && *s != '.')
s++;
@ -32,12 +104,8 @@ static void settime(char *s) {
tm.tm_sec = (hour % 100);
tm.tm_isdst = -1;
t = mktime(&tm);
fd = open("/dev/alarm", O_RDWR);
ts.tv_sec = t;
ts.tv_nsec = 0;
ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
if (settime_alarm_tm(&tm) < 0)
settime_rtc_tm(&tm);
}
int date_main(int argc, char *argv[])
@ -115,11 +183,9 @@ int date_main(int argc, char *argv[])
//tv.tv_usec = 0;
strtotimeval(argv[optind], &tv);
printf("time %s -> %lu.%lu\n", argv[optind], tv.tv_sec, tv.tv_usec);
fd = open("/dev/alarm", O_RDWR);
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * 1000;
res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
//res = settimeofday(&tv, NULL);
res = settime_alarm_timeval(&tv);
if (res < 0)
res = settime_rtc_timeval(&tv);
if(res < 0) {
fprintf(stderr,"settimeofday failed %s\n", strerror(errno));
return 1;