1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <asm/ioctl.h>
//#include <linux/rtc.h>
#include <linux/android_alarm.h>
int alarm_main(int argc, char *argv[])
{
int c;
int res;
struct tm tm;
time_t t;
struct timespec ts;
// struct rtc_time rtc_time;
char strbuf[26];
int afd;
int nfd;
// struct timeval timeout = { 0, 0 };
int wait = 0;
fd_set rfds;
const char wake_lock_id[] = "alarm_test";
int waitalarmmask = 0;
int useutc = 0;
android_alarm_type_t alarmtype_low = ANDROID_ALARM_RTC_WAKEUP;
android_alarm_type_t alarmtype_high = ANDROID_ALARM_RTC_WAKEUP;
android_alarm_type_t alarmtype = 0;
do {
//c = getopt(argc, argv, "uw:");
c = getopt(argc, argv, "uwat:");
if (c == EOF)
break;
switch (c) {
case 'u':
useutc = 1;
break;
case 't':
alarmtype_low = alarmtype_high = strtol(optarg, NULL, 0);
break;
case 'a':
alarmtype_low = ANDROID_ALARM_RTC_WAKEUP;
alarmtype_high = ANDROID_ALARM_TYPE_COUNT - 1;
break;
case 'w':
//timeout.tv_sec = strtol(optarg, NULL, 0);
wait = 1;
break;
case '?':
fprintf(stderr, "%s: invalid option -%c\n",
argv[0], optopt);
exit(1);
}
} while (1);
if(optind + 2 < argc) {
fprintf(stderr,"%s [-uwa] [-t type] [seconds]\n", argv[0]);
return 1;
}
afd = open("/dev/alarm", O_RDWR);
if(afd < 0) {
fprintf(stderr, "Unable to open rtc: %s\n", strerror(errno));
return 1;
}
if(optind == argc) {
for(alarmtype = alarmtype_low; alarmtype <= alarmtype_high; alarmtype++) {
waitalarmmask |= 1U << alarmtype;
}
#if 0
res = ioctl(fd, RTC_ALM_READ, &tm);
if(res < 0) {
fprintf(stderr, "Unable to read alarm: %s\n", strerror(errno));
return 1;
}
#endif
#if 0
t = timegm(&tm);
if(useutc)
gmtime_r(&t, &tm);
else
localtime_r(&t, &tm);
#endif
#if 0
asctime_r(&tm, strbuf);
printf("%s", strbuf);
#endif
}
else if(optind + 1 == argc) {
#if 0
res = ioctl(fd, RTC_RD_TIME, &tm);
if(res < 0) {
fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno));
return 1;
}
asctime_r(&tm, strbuf);
printf("Now: %s", strbuf);
time(&tv.tv_sec);
#endif
#if 0
time(&ts.tv_sec);
ts.tv_nsec = 0;
//strptime(argv[optind], NULL, &tm);
//tv.tv_sec = mktime(&tm);
//tv.tv_usec = 0;
#endif
for(alarmtype = alarmtype_low; alarmtype <= alarmtype_high; alarmtype++) {
waitalarmmask |= 1U << alarmtype;
res = ioctl(afd, ANDROID_ALARM_GET_TIME(alarmtype), &ts);
if(res < 0) {
fprintf(stderr, "Unable to get current time: %s\n", strerror(errno));
return 1;
}
ts.tv_sec += strtol(argv[optind], NULL, 0);
//strtotimeval(argv[optind], &tv);
gmtime_r(&ts.tv_sec, &tm);
printf("time %s -> %ld.%09ld\n", argv[optind], ts.tv_sec, ts.tv_nsec);
asctime_r(&tm, strbuf);
printf("Requested %s", strbuf);
res = ioctl(afd, ANDROID_ALARM_SET(alarmtype), &ts);
if(res < 0) {
fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno));
return 1;
}
}
#if 0
res = ioctl(fd, RTC_ALM_SET, &tm);
if(res < 0) {
fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno));
return 1;
}
res = ioctl(fd, RTC_AIE_ON);
if(res < 0) {
fprintf(stderr, "Unable to enable alarm: %s\n", strerror(errno));
return 1;
}
#endif
}
else {
fprintf(stderr,"%s [-u] [date]\n", argv[0]);
return 1;
}
if(wait) {
while(waitalarmmask) {
printf("wait for alarm %x\n", waitalarmmask);
res = ioctl(afd, ANDROID_ALARM_WAIT);
if(res < 0) {
fprintf(stderr, "alarm wait failed\n");
}
printf("got alarm %x\n", res);
waitalarmmask &= ~res;
nfd = open("/sys/android_power/acquire_full_wake_lock", O_RDWR);
write(nfd, wake_lock_id, sizeof(wake_lock_id) - 1);
close(nfd);
//sleep(5);
nfd = open("/sys/android_power/release_wake_lock", O_RDWR);
write(nfd, wake_lock_id, sizeof(wake_lock_id) - 1);
close(nfd);
}
printf("done\n");
}
#if 0
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
res = select(fd + 1, &rfds, NULL, NULL, &timeout);
if(res < 0) {
fprintf(stderr, "select failed: %s\n", strerror(errno));
return 1;
}
if(res > 0) {
int event;
read(fd, &event, sizeof(event));
fprintf(stderr, "got %x\n", event);
}
else {
fprintf(stderr, "timeout waiting for alarm\n");
}
#endif
close(afd);
return 0;
}
|
