1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <fcntl.h> 4 #include <string.h> 5 #include <errno.h> 6 #include <time.h> 7 #include <asm/ioctl.h> 8 //#include <linux/rtc.h> 9 #include <linux/android_alarm.h> 10 11 int alarm_main(int argc, char *argv[]) 12 { 13 int c; 14 int res; 15 struct tm tm; 16 time_t t; 17 struct timespec ts; 18 // struct rtc_time rtc_time; 19 char strbuf[26]; 20 int afd; 21 int nfd; 22 // struct timeval timeout = { 0, 0 }; 23 int wait = 0; 24 fd_set rfds; 25 const char wake_lock_id[] = "alarm_test"; 26 int waitalarmmask = 0; 27 28 int useutc = 0; 29 android_alarm_type_t alarmtype_low = ANDROID_ALARM_RTC_WAKEUP; 30 android_alarm_type_t alarmtype_high = ANDROID_ALARM_RTC_WAKEUP; 31 android_alarm_type_t alarmtype = 0; 32 33 do { 34 //c = getopt(argc, argv, "uw:"); 35 c = getopt(argc, argv, "uwat:"); 36 if (c == EOF) 37 break; 38 switch (c) { 39 case 'u': 40 useutc = 1; 41 break; 42 case 't': 43 alarmtype_low = alarmtype_high = strtol(optarg, NULL, 0); 44 break; 45 case 'a': 46 alarmtype_low = ANDROID_ALARM_RTC_WAKEUP; 47 alarmtype_high = ANDROID_ALARM_TYPE_COUNT - 1; 48 break; 49 case 'w': 50 //timeout.tv_sec = strtol(optarg, NULL, 0); 51 wait = 1; 52 break; 53 case '?': 54 fprintf(stderr, "%s: invalid option -%c\n", 55 argv[0], optopt); 56 exit(1); 57 } 58 } while (1); 59 if(optind + 2 < argc) { 60 fprintf(stderr,"%s [-uwa] [-t type] [seconds]\n", argv[0]); 61 return 1; 62 } 63 64 afd = open("/dev/alarm", O_RDWR); 65 if(afd < 0) { 66 fprintf(stderr, "Unable to open rtc: %s\n", strerror(errno)); 67 return 1; 68 } 69 70 if(optind == argc) { 71 for(alarmtype = alarmtype_low; alarmtype <= alarmtype_high; alarmtype++) { 72 waitalarmmask |= 1U << alarmtype; 73 } 74 #if 0 75 res = ioctl(fd, RTC_ALM_READ, &tm); 76 if(res < 0) { 77 fprintf(stderr, "Unable to read alarm: %s\n", strerror(errno)); 78 return 1; 79 } 80 #endif 81 #if 0 82 t = timegm(&tm); 83 if(useutc) 84 gmtime_r(&t, &tm); 85 else 86 localtime_r(&t, &tm); 87 #endif 88 #if 0 89 asctime_r(&tm, strbuf); 90 printf("%s", strbuf); 91 #endif 92 } 93 else if(optind + 1 == argc) { 94 #if 0 95 res = ioctl(fd, RTC_RD_TIME, &tm); 96 if(res < 0) { 97 fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno)); 98 return 1; 99 } 100 asctime_r(&tm, strbuf); 101 printf("Now: %s", strbuf); 102 time(&tv.tv_sec); 103 #endif 104 #if 0 105 time(&ts.tv_sec); 106 ts.tv_nsec = 0; 107 108 //strptime(argv[optind], NULL, &tm); 109 //tv.tv_sec = mktime(&tm); 110 //tv.tv_usec = 0; 111 #endif 112 for(alarmtype = alarmtype_low; alarmtype <= alarmtype_high; alarmtype++) { 113 waitalarmmask |= 1U << alarmtype; 114 res = ioctl(afd, ANDROID_ALARM_GET_TIME(alarmtype), &ts); 115 if(res < 0) { 116 fprintf(stderr, "Unable to get current time: %s\n", strerror(errno)); 117 return 1; 118 } 119 ts.tv_sec += strtol(argv[optind], NULL, 0); 120 //strtotimeval(argv[optind], &tv); 121 gmtime_r(&ts.tv_sec, &tm); 122 printf("time %s -> %ld.%09ld\n", argv[optind], ts.tv_sec, ts.tv_nsec); 123 asctime_r(&tm, strbuf); 124 printf("Requested %s", strbuf); 125 126 res = ioctl(afd, ANDROID_ALARM_SET(alarmtype), &ts); 127 if(res < 0) { 128 fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno)); 129 return 1; 130 } 131 } 132 #if 0 133 res = ioctl(fd, RTC_ALM_SET, &tm); 134 if(res < 0) { 135 fprintf(stderr, "Unable to set alarm: %s\n", strerror(errno)); 136 return 1; 137 } 138 res = ioctl(fd, RTC_AIE_ON); 139 if(res < 0) { 140 fprintf(stderr, "Unable to enable alarm: %s\n", strerror(errno)); 141 return 1; 142 } 143 #endif 144 } 145 else { 146 fprintf(stderr,"%s [-u] [date]\n", argv[0]); 147 return 1; 148 } 149 150 if(wait) { 151 while(waitalarmmask) { 152 printf("wait for alarm %x\n", waitalarmmask); 153 res = ioctl(afd, ANDROID_ALARM_WAIT); 154 if(res < 0) { 155 fprintf(stderr, "alarm wait failed\n"); 156 } 157 printf("got alarm %x\n", res); 158 waitalarmmask &= ~res; 159 nfd = open("/sys/android_power/acquire_full_wake_lock", O_RDWR); 160 write(nfd, wake_lock_id, sizeof(wake_lock_id) - 1); 161 close(nfd); 162 //sleep(5); 163 nfd = open("/sys/android_power/release_wake_lock", O_RDWR); 164 write(nfd, wake_lock_id, sizeof(wake_lock_id) - 1); 165 close(nfd); 166 } 167 printf("done\n"); 168 } 169 #if 0 170 FD_ZERO(&rfds); 171 FD_SET(fd, &rfds); 172 res = select(fd + 1, &rfds, NULL, NULL, &timeout); 173 if(res < 0) { 174 fprintf(stderr, "select failed: %s\n", strerror(errno)); 175 return 1; 176 } 177 if(res > 0) { 178 int event; 179 read(fd, &event, sizeof(event)); 180 fprintf(stderr, "got %x\n", event); 181 } 182 else { 183 fprintf(stderr, "timeout waiting for alarm\n"); 184 } 185 #endif 186 187 close(afd); 188 189 return 0; 190 } 191
