static int alarm_release(struct inode *inode, struct file *file)
{
int i;
unsigned long flags;
spin_lock_irqsave(&alarm_slock, flags);
if (file->private_data) {
for (i = 0; i < ANDROID_ALARM_TYPE_COUNT; i++) {
uint32_t alarm_type_mask = 1U << i;
if (alarm_enabled & alarm_type_mask) {
alarm_dbg(INFO,
"%s: clear alarm, pending %d\n",
__func__,
!!(alarm_pending & alarm_type_mask));
alarm_enabled &= ~alarm_type_mask;
}
spin_unlock_irqrestore(&alarm_slock, flags);
devalarm_cancel(&alarms[i]);
spin_lock_irqsave(&alarm_slock, flags);
}
if (alarm_pending | wait_pending) {
if (alarm_pending)
alarm_dbg(INFO, "%s: clear pending alarms %x\n",
__func__, alarm_pending);
__pm_relax(&alarm_wake_lock);
wait_pending = 0;
alarm_pending = 0;
}
alarm_opened = 0;
}
spin_unlock_irqrestore(&alarm_slock, flags);
return 0;
}
static int alarm_set_rtc(struct timespec *ts)
{
struct rtc_time new_rtc_tm;
struct rtc_device *rtc_dev;
unsigned long flags;
int rv = 0;
rtc_time_to_tm(ts->tv_sec, &new_rtc_tm);
alarm_dbg(INFO, "set rtc %ld %ld - rtc %02d:%02d:%02d %02d/%02d/%04d\n",
ts->tv_sec, ts->tv_nsec,
new_rtc_tm.tm_hour, new_rtc_tm.tm_min,
new_rtc_tm.tm_sec, new_rtc_tm.tm_mon + 1,
new_rtc_tm.tm_mday,
new_rtc_tm.tm_year + 1900);
rtc_dev = alarmtimer_get_rtcdev();
rv = do_settimeofday(ts);
if (rv < 0)
return rv;
if (rtc_dev)
rv = rtc_set_time(rtc_dev, &new_rtc_tm);
spin_lock_irqsave(&alarm_slock, flags);
alarm_pending |= ANDROID_ALARM_TIME_CHANGE_MASK;
wake_up(&alarm_wait_queue);
spin_unlock_irqrestore(&alarm_slock, flags);
return rv;
}
void alarm_set_power_on(struct timespec new_pwron_time, bool logo)
{
unsigned long pwron_time;
struct rtc_wkalrm alm;
struct rtc_device *alarm_rtc_dev;
alarm_dbg(INFO, "alarm set power on\n");
#ifdef RTC_PWRON_SEC
/* round down the second */
new_pwron_time.tv_sec = (new_pwron_time.tv_sec / 60) * 60;
#endif
if (new_pwron_time.tv_sec > 0) {
pwron_time = new_pwron_time.tv_sec;
#ifdef RTC_PWRON_SEC
pwron_time += RTC_PWRON_SEC;
#endif
alm.enabled = (logo ? 3 : 2);
} else {
pwron_time = 0;
alm.enabled = 4;
}
alarm_rtc_dev = alarmtimer_get_rtcdev();
rtc_time_to_tm(pwron_time, &alm.time);
rtc_set_alarm(alarm_rtc_dev, &alm);
rtc_set_alarm_poweron(alarm_rtc_dev, &alm);
}
static int alarm_wait(void)
{
unsigned long flags;
int rv = 0;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm wait\n");
if (!alarm_pending && wait_pending) {
__pm_relax(&alarm_wake_lock);
wait_pending = 0;
}
spin_unlock_irqrestore(&alarm_slock, flags);
rv = wait_event_interruptible(alarm_wait_queue, alarm_pending);
if (rv)
return rv;
spin_lock_irqsave(&alarm_slock, flags);
rv = alarm_pending;
wait_pending = 1;
alarm_pending = 0;
spin_unlock_irqrestore(&alarm_slock, flags);
return rv;
}
static void alarm_clear(enum android_alarm_type alarm_type,
struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
alarm_dbg(IO, "alarm %d clear\n", alarm_type);
if (alarm_type == ANDROID_ALARM_POWER_ON ||
alarm_type == ANDROID_ALARM_POWER_ON_LOGO) {
ts->tv_sec = 0;
alarm_set_power_on(*ts, false);
return;
}
spin_lock_irqsave(&alarm_slock, flags);
devalarm_try_to_cancel(&alarms[alarm_type]);
if (alarm_pending) {
alarm_pending &= ~alarm_type_mask;
if (!alarm_pending && !wait_pending)
__pm_relax(&alarm_wake_lock);
}
alarm_enabled &= ~alarm_type_mask;
spin_unlock_irqrestore(&alarm_slock, flags);
}
static void alarm_clear(enum android_alarm_type alarm_type)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
#ifdef CONFIG_BCM_RTC_ALARM_BOOT
if (alarm_type == ANDROID_ALARM_RTC_POWERON)
alarm_poweron_cancel();
#endif
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d clear\n", alarm_type);
#ifdef CONFIG_BCM_RTC_ALARM_BOOT
if (alarm_type != ANDROID_ALARM_RTC_POWERON)
devalarm_try_to_cancel(&alarms[alarm_type]);
#else
devalarm_try_to_cancel(&alarms[alarm_type]);
#endif /*CONFIG_BCM_RTC_ALARM_BOOT*/
if (alarm_pending) {
alarm_pending &= ~alarm_type_mask;
if (!alarm_pending && !wait_pending)
__pm_relax(&alarm_wake_lock);
}
alarm_enabled &= ~alarm_type_mask;
spin_unlock_irqrestore(&alarm_slock, flags);
}
static enum hrtimer_restart devalarm_hrthandler(struct hrtimer *hrt)
{
struct devalarm *devalrm = container_of(hrt, struct devalarm, u.hrt);
alarm_dbg(INT, "devalarm_hrthandler\n");
devalarm_triggered(devalrm);
return HRTIMER_NORESTART;
}
static enum alarmtimer_restart devalarm_alarmhandler(struct alarm *alrm,
ktime_t now)
{
struct devalarm *devalrm = container_of(alrm, struct devalarm, u.alrm);
alarm_dbg(INT, "devalarm_alarmhandler\n");
devalarm_triggered(devalrm);
return ALARMTIMER_NORESTART;
}
static ssize_t alarm_sysfs_store_rtc_local_time(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int retval;
retval = sscanf(buf, " %d ", &rtc_local_time);
if (retval != 1) {
alarm_dbg(INFO, "Failed to store rtc local time.\n");
return -EINVAL;
}
return retval ? retval : count;
}
static void alarm_set(enum android_alarm_type alarm_type,
struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d set %ld.%09ld\n",
alarm_type, ts->tv_sec, ts->tv_nsec);
alarm_enabled |= alarm_type_mask;
devalarm_start(&alarms[alarm_type], timespec_to_ktime(*ts));
spin_unlock_irqrestore(&alarm_slock, flags);
}
static void devalarm_triggered(struct devalarm *alarm)
{
unsigned long flags;
uint32_t alarm_type_mask = 1U << alarm->type;
alarm_dbg(INT, "devalarm_triggered type %d\n", alarm->type);
spin_lock_irqsave(&alarm_slock, flags);
if (alarm_enabled & alarm_type_mask) {
wake_lock_timeout(&alarm_wake_lock, 5 * HZ);
alarm_enabled &= ~alarm_type_mask;
alarm_pending |= alarm_type_mask;
wake_up(&alarm_wait_queue);
}
spin_unlock_irqrestore(&alarm_slock, flags);
}
static void devalarm_triggered(struct devalarm *alarm)
{
unsigned long flags;
uint32_t alarm_type_mask = 1U << alarm->type;
alarm_dbg(INT, "%s: type %d\n", __func__, alarm->type);
spin_lock_irqsave(&alarm_slock, flags);
if (alarm_enabled & alarm_type_mask) {
__pm_wakeup_event(&alarm_wake_lock, 5000); /* 5secs */
alarm_enabled &= ~alarm_type_mask;
alarm_pending |= alarm_type_mask;
wake_up(&alarm_wait_queue);
}
spin_unlock_irqrestore(&alarm_slock, flags);
}
static void alarm_set(enum android_alarm_type alarm_type,
struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d set %ld.%09ld\n",
alarm_type, ts->tv_sec, ts->tv_nsec);
alarm_enabled |= alarm_type_mask;
devalarm_start(&alarms[alarm_type], timespec_to_ktime(*ts));
spin_unlock_irqrestore(&alarm_slock, flags);
if (alarm_type == ANDROID_ALARM_RTC_POWEROFF_WAKEUP)
set_power_on_alarm(ts->tv_sec, 1);
}
static void alarm_clear(enum android_alarm_type alarm_type)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d clear\n", alarm_type);
devalarm_try_to_cancel(&alarms[alarm_type]);
if (alarm_pending) {
alarm_pending &= ~alarm_type_mask;
if (!alarm_pending && !wait_pending)
__pm_relax(&alarm_wake_lock);
}
alarm_enabled &= ~alarm_type_mask;
spin_unlock_irqrestore(&alarm_slock, flags);
}
static void alarm_clear(enum android_alarm_type alarm_type, struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
mutex_lock(&alarm_mutex);
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d clear\n", alarm_type);
devalarm_try_to_cancel(&alarms[alarm_type]);
if (alarm_pending) {
alarm_pending &= ~alarm_type_mask;
if (!alarm_pending && !wait_pending)
__pm_relax(&alarm_wake_lock);
}
alarm_enabled &= ~alarm_type_mask;
spin_unlock_irqrestore(&alarm_slock, flags);
if (alarm_type == ANDROID_ALARM_RTC_POWEROFF_WAKEUP)
set_power_on_alarm(ts->tv_sec, 0);
mutex_unlock(&alarm_mutex);
}
static void alarm_set(enum android_alarm_type alarm_type,
struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
alarm_dbg(INFO, "alarm %d set %ld.%09ld\n",
alarm_type, ts->tv_sec, ts->tv_nsec);
if (alarm_type == ANDROID_ALARM_POWER_ON) {
alarm_set_power_on(*ts, false);
return;
}
if (alarm_type == ANDROID_ALARM_POWER_ON_LOGO) {
alarm_set_power_on(*ts, true);
return;
}
spin_lock_irqsave(&alarm_slock, flags);
alarm_enabled |= alarm_type_mask;
devalarm_start(&alarms[alarm_type], timespec_to_ktime(*ts));
spin_unlock_irqrestore(&alarm_slock, flags);
}
static int alarm_wait(void)
{
unsigned long flags;
int rv = 0;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm wait\n");
if (!alarm_pending && wait_pending) {
__pm_relax(&alarm_wake_lock);
wait_pending = 0;
}
spin_unlock_irqrestore(&alarm_slock, flags);
rv = wait_event_interruptible(alarm_wait_queue, alarm_pending);
if (rv)
return rv;
spin_lock_irqsave(&alarm_slock, flags);
//AndyPan add
#ifdef LENOVO_ALARM
if (alarm_pending & pwoff_mask)
{
printk("andy alarm_pending &= ~ pwoff_mask =%d \r\n",alarm_pending);
alarm_pending &= ~ pwoff_mask;
alarm_pending |= deviceup_mask;
printk("andy alarm_pending |= deviceup_mask =%d \r\n",alarm_pending);
}
//AndyPan add
#endif
rv = alarm_pending;
wait_pending = 1;
alarm_pending = 0;
spin_unlock_irqrestore(&alarm_slock, flags);
return rv;
}
static void alarm_set(enum android_alarm_type alarm_type,
struct timespec *ts)
{
uint32_t alarm_type_mask = 1U << alarm_type;
unsigned long flags;
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d set %ld.%09ld\n",
alarm_type, ts->tv_sec, ts->tv_nsec);
alarm_enabled |= alarm_type_mask;
#ifdef CONFIG_BCM_RTC_ALARM_BOOT
if (alarm_type != ANDROID_ALARM_RTC_POWERON)
devalarm_start(&alarms[alarm_type],
timespec_to_ktime(new_alarm_time));
#else
devalarm_start(&alarms[alarm_type], timespec_to_ktime(*ts));
#endif /*CONFIG_BCM_RTC_ALARM_BOOT*/
spin_unlock_irqrestore(&alarm_slock, flags);
#ifdef CONFIG_BCM_RTC_ALARM_BOOT
if (alarm_type == ANDROID_ALARM_RTC_POWERON)
alarm_poweron_set_alarm(new_alarm_time);
#endif
}
static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int rv = 0;
unsigned long flags;
struct timespec new_alarm_time;
struct timespec new_rtc_time;
struct timespec tmp_time;
struct rtc_time new_rtc_tm;
struct rtc_device *rtc_dev;
enum android_alarm_type alarm_type = ANDROID_ALARM_IOCTL_TO_TYPE(cmd);
uint32_t alarm_type_mask = 1U << alarm_type;
if (alarm_type >= ANDROID_ALARM_TYPE_COUNT)
return -EINVAL;
if (ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_GET_TIME(0)) {
if ((file->f_flags & O_ACCMODE) == O_RDONLY)
return -EPERM;
if (file->private_data == NULL &&
cmd != ANDROID_ALARM_SET_RTC) {
spin_lock_irqsave(&alarm_slock, flags);
if (alarm_opened) {
spin_unlock_irqrestore(&alarm_slock, flags);
return -EBUSY;
}
alarm_opened = 1;
file->private_data = (void *)1;
spin_unlock_irqrestore(&alarm_slock, flags);
}
}
switch (ANDROID_ALARM_BASE_CMD(cmd)) {
case ANDROID_ALARM_CLEAR(0):
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d clear\n", alarm_type);
devalarm_try_to_cancel(&alarms[alarm_type]);
if (alarm_pending) {
alarm_pending &= ~alarm_type_mask;
if (!alarm_pending && !wait_pending)
__pm_relax(&alarm_wake_lock);
}
alarm_enabled &= ~alarm_type_mask;
spin_unlock_irqrestore(&alarm_slock, flags);
break;
case ANDROID_ALARM_SET_OLD:
case ANDROID_ALARM_SET_AND_WAIT_OLD:
if (get_user(new_alarm_time.tv_sec, (int __user *)arg)) {
rv = -EFAULT;
goto err1;
}
new_alarm_time.tv_nsec = 0;
goto from_old_alarm_set;
case ANDROID_ALARM_SET_AND_WAIT(0):
case ANDROID_ALARM_SET(0):
if (copy_from_user(&new_alarm_time, (void __user *)arg,
sizeof(new_alarm_time))) {
rv = -EFAULT;
goto err1;
}
from_old_alarm_set:
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm %d set %ld.%09ld\n",
alarm_type,
new_alarm_time.tv_sec, new_alarm_time.tv_nsec);
alarm_enabled |= alarm_type_mask;
devalarm_start(&alarms[alarm_type],
timespec_to_ktime(new_alarm_time));
spin_unlock_irqrestore(&alarm_slock, flags);
if (ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_SET_AND_WAIT(0)
&& cmd != ANDROID_ALARM_SET_AND_WAIT_OLD)
break;
/* fall though */
case ANDROID_ALARM_WAIT:
spin_lock_irqsave(&alarm_slock, flags);
alarm_dbg(IO, "alarm wait\n");
if (!alarm_pending && wait_pending) {
__pm_relax(&alarm_wake_lock);
wait_pending = 0;
}
spin_unlock_irqrestore(&alarm_slock, flags);
rv = wait_event_interruptible(alarm_wait_queue, alarm_pending);
if (rv)
goto err1;
spin_lock_irqsave(&alarm_slock, flags);
rv = alarm_pending;
wait_pending = 1;
alarm_pending = 0;
spin_unlock_irqrestore(&alarm_slock, flags);
break;
case ANDROID_ALARM_SET_RTC:
if (copy_from_user(&new_rtc_time, (void __user *)arg,
sizeof(new_rtc_time))) {
rv = -EFAULT;
goto err1;
}
rtc_time_to_tm(new_rtc_time.tv_sec, &new_rtc_tm);
rtc_dev = alarmtimer_get_rtcdev();
rv = do_settimeofday(&new_rtc_time);
if (rv < 0)
goto err1;
if (rtc_dev)
rv = rtc_set_time(rtc_dev, &new_rtc_tm);
spin_lock_irqsave(&alarm_slock, flags);
alarm_pending |= ANDROID_ALARM_TIME_CHANGE_MASK;
wake_up(&alarm_wait_queue);
spin_unlock_irqrestore(&alarm_slock, flags);
if (rv < 0)
goto err1;
break;
case ANDROID_ALARM_GET_TIME(0):
switch (alarm_type) {
case ANDROID_ALARM_RTC_WAKEUP:
case ANDROID_ALARM_RTC:
getnstimeofday(&tmp_time);
break;
case ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP:
case ANDROID_ALARM_ELAPSED_REALTIME:
get_monotonic_boottime(&tmp_time);
break;
case ANDROID_ALARM_SYSTEMTIME:
ktime_get_ts(&tmp_time);
break;
default:
rv = -EINVAL;
goto err1;
}
if (copy_to_user((void __user *)arg, &tmp_time,
sizeof(tmp_time))) {
rv = -EFAULT;
goto err1;
}
break;
default:
rv = -EINVAL;
}
err1:
return rv;
}
static long alarm_do_ioctl(struct file *file, unsigned int cmd,
struct timespec *ts, struct rtc_wkalrm *alm)
{
int rv = 0;
unsigned long flags;
enum android_alarm_type alarm_type = ANDROID_ALARM_IOCTL_TO_TYPE(cmd);
alarm_dbg(INFO, "alarm_do_ioctl cmd:%d type:%d (%lu)\n",
cmd, alarm_type, (uintptr_t)file->private_data);
if (alarm_type >= ANDROID_ALARM_TYPE_COUNT &&
alarm_type != ANDROID_ALARM_POWER_ON &&
alarm_type != ANDROID_ALARM_POWER_ON_LOGO) {
return -EINVAL;
}
if (ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_GET_TIME(0)
&& ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_SET_IPO(0)
&& ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_GET_POWER_ON_IPO) {
if ((file->f_flags & O_ACCMODE) == O_RDONLY)
return -EPERM;
if (file->private_data == NULL &&
cmd != ANDROID_ALARM_SET_RTC) {
spin_lock_irqsave(&alarm_slock, flags);
if (alarm_opened) {
spin_unlock_irqrestore(&alarm_slock, flags);
alarm_dbg(INFO, "alarm_do_ioctl EBUSY\n");
file->private_data = NULL;
return -EBUSY;
}
alarm_opened = 1;
file->private_data = (void *)1;
spin_unlock_irqrestore(&alarm_slock, flags);
alarm_dbg(INFO, "alarm_do_ioctl opened\n");
}
}
switch (ANDROID_ALARM_BASE_CMD(cmd)) {
case ANDROID_ALARM_CLEAR(0):
alarm_clear(alarm_type, ts);
break;
case ANDROID_ALARM_SET(0):
alarm_set(alarm_type, ts);
break;
case ANDROID_ALARM_SET_AND_WAIT(0):
alarm_set(alarm_type, ts);
/* fall though */
case ANDROID_ALARM_WAIT:
rv = alarm_wait();
break;
case ANDROID_ALARM_SET_IPO(0):
alarm_set(alarm_type, ts);
break;
case ANDROID_ALARM_SET_AND_WAIT_IPO(0):
alarm_set(alarm_type, ts);
/* fall though */
case ANDROID_ALARM_WAIT_IPO:
rv = alarm_wait();
break;
case ANDROID_ALARM_SET_RTC:
rv = alarm_set_rtc(ts);
break;
case ANDROID_ALARM_GET_TIME(0):
rv = alarm_get_time(alarm_type, ts);
break;
case ANDROID_ALARM_GET_POWER_ON:
alarm_get_power_on(alm);
break;
case ANDROID_ALARM_GET_POWER_ON_IPO:
alarm_get_power_on(alm);
break;
default:
rv = -EINVAL;
}
return rv;
}
static int alarm_open(struct inode *inode, struct file *file)
{
file->private_data = NULL;
alarm_dbg(INFO, "alarm_open (%d:%d)\n", current->tgid, current->pid);
return 0;
}