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/*******************************************************************************
* Copyright (c) 2013 Linaro
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Linaro <linaro-dev@lists.linaro.org>
*******************************************************************************/
/*
* alarm-dev-test.c Trivial Android Alarm-dev unit test
*
* By: John Stultz <john.stultz@linaro.org>
*
* For each alarm type, gets, sets and waits for an alarm.
* Then sets the RTC back 10 seconds.
*
* TODO:
*/
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <errno.h>
#include <unistd.h>
#include "android_alarm.h"
int alarmfd;
int alarm_set(int type, struct timespec *ts)
{
return ioctl(alarmfd, ANDROID_ALARM_SET(type), ts);
}
int alarm_get_time(int type, struct timespec *ts)
{
return ioctl(alarmfd, ANDROID_ALARM_GET_TIME(type), ts);
}
int alarm_set_and_wait(int type, struct timespec *ts)
{
return ioctl(alarmfd, ANDROID_ALARM_SET_AND_WAIT(type), ts);
}
int alarm_wait(void)
{
return ioctl(alarmfd, ANDROID_ALARM_WAIT, 0);
}
int alarm_clear(int type)
{
return ioctl(alarmfd, ANDROID_ALARM_CLEAR(type),0);
}
int alarm_set_rtc(struct timespec *ts)
{
return ioctl(alarmfd, ANDROID_ALARM_SET_RTC, ts);
}
#define DELAY 5
int main(void)
{
struct timespec target, now;
int ret;
int alarm_type;
if (getuid()) {
printf("Error: Need to run as root\n");
return -1;
}
alarmfd = open("/dev/alarm", O_RDWR);
if (alarmfd < 1) {
printf("Error opening /dev/alarm\n");
return -1;
}
for (alarm_type = ANDROID_ALARM_RTC_WAKEUP;
alarm_type < ANDROID_ALARM_TYPE_COUNT; alarm_type++) {
ret = alarm_get_time(alarm_type, &now);
if (ret < 0) {
perror("Error: alarm_get_time");
return -1;
}
printf("(%i) gettime(%i): %ld:%ld\n", ret, alarm_type, now.tv_sec, now.tv_nsec);
target = now;
target.tv_sec += DELAY;
ret = alarm_set_and_wait(alarm_type, &target);
if (ret < 0) {
if (errno == EBUSY) {
printf("Warning: EBUSY on alarm_set_and_wait, this is likely due to the "
"Android environment using this alarm type(%d). Skipping.", alarm_type);
continue;
}
perror("Error: alarm_set_and_wait");
return -1;
}
printf("(0x%x) alarm_set_and_wait(0x%x)\n", ret, alarm_type);
if (!(ret & (1 << alarm_type))) {
printf("Error: alarm_wait: expected bit 0x%x set, got 0x%x", 1 << alarm_type, ret);
return -1;
}
ret = alarm_get_time(alarm_type, &now);
if (ret < 0) {
perror("Error: alarm_get_time");
return -1;
}
if (now.tv_sec < target.tv_sec) {
printf("Error: Early timer return!\n");
return -1;
}
if (now.tv_sec > target.tv_sec + 1) {
printf("Error: Late timer return!\n");
return -1;
}
target.tv_sec += DELAY;
ret = alarm_set(alarm_type, &target);
if (ret < 0) {
perror("Error: alarm_set");
return -1;
}
printf("(%i) alarm_set(%i)\n", ret, alarm_type);
ret = alarm_wait();
if (ret < 0) {
perror("Error: alarm_wait");
}
printf("(0x%x) alarm_wait()\n", ret);
if (!(ret & (1 << alarm_type))) {
printf("Error: alarm_wait: expected bit 0x%x set, got 0x%x", 1 << alarm_type, ret);
return -1;
}
ret = alarm_get_time(alarm_type, &now);
if (ret < 0) {
perror("Error: alarm_get_time");
return -1;
}
if (now.tv_sec < target.tv_sec) {
printf("Error: Early timer return!\n");
return -1;
}
if (now.tv_sec > target.tv_sec + 1) {
printf("Error: Late timer return!\n");
return -1;
}
ret = alarm_clear(alarm_type);
printf("(%i) alarm_clear()\n", ret);
if (ret < 0) {
perror("Error: alarm_clear");
return -1;
}
target.tv_sec += DELAY;
ret = alarm_set(alarm_type, &target);
printf("(%i) alarm_set(%i)\n", ret, alarm_type);
if (ret < 0) {
perror("Error: alarm_set");
return -1;
}
ret = alarm_clear(alarm_type);
printf("(%i) alarm_clear()\n", ret);
if (ret < 0) {
perror("Error: alarm_clear");
return -1;
}
}
ret = alarm_get_time(ANDROID_ALARM_RTC, &now);
if (ret < 0) {
perror("Error: alarm_get_time");
return -1;
}
printf("(%i) gettime(ANDROID_ALARM_RTC): %ld:%ld\n", ret, now.tv_sec, now.tv_nsec);
target = now;
target.tv_sec -= 10;
ret = alarm_set_rtc(&target);
if (ret < 0) {
perror("Error: alarm_set_rtc");
return -1;
}
printf("(%i) setting rtc back 10 sec (%ld:%ld)\n", ret, target.tv_sec, target.tv_nsec);
ret = alarm_get_time(ANDROID_ALARM_RTC, &now);
if (ret < 0) {
perror("Error: alarm_get_time");
return -1;
}
printf("(%i) gettime(ANDROID_ALARM_RTC): %ld:%ld\n", ret, now.tv_sec, now.tv_nsec);
if (now.tv_sec < target.tv_sec) {
printf("Error: Bad time!\n");
return -1;
}
printf("Pass\n");
return 0;
}
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