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, 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 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); }
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; enum android_alarm_type alarm_type = ANDROID_ALARM_IOCTL_TO_TYPE(cmd); uint32_t alarm_type_mask = 1U << alarm_type; #ifdef CONFIG_RTC_AUTO_PWRON char bootalarm_data[14]; #endif 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); pr_alarm(IO, "alarm %d clear\n", alarm_type); alarm_try_to_cancel(&alarms[alarm_type]); if (alarm_pending) { alarm_pending &= ~alarm_type_mask; if (!alarm_pending && !wait_pending) wake_unlock(&alarm_wake_lock); } alarm_enabled &= ~alarm_type_mask; if (alarm_type == ANDROID_ALARM_RTC_WAKEUP) set_power_on_alarm(0); 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); pr_alarm(IO, "alarm %d set %ld.%09ld\n", alarm_type, new_alarm_time.tv_sec, new_alarm_time.tv_nsec); alarm_enabled |= alarm_type_mask; alarm_start_range(&alarms[alarm_type], timespec_to_ktime(new_alarm_time), timespec_to_ktime(new_alarm_time)); if ((alarm_type == ANDROID_ALARM_RTC_WAKEUP) && (ANDROID_ALARM_BASE_CMD(cmd) == ANDROID_ALARM_SET(0))) set_power_on_alarm(new_alarm_time.tv_sec); 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); pr_alarm(IO, "alarm wait\n"); if (!alarm_pending && wait_pending) { wake_unlock(&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; } rv = alarm_set_rtc(new_rtc_time); 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; #ifdef CONFIG_RTC_AUTO_PWRON case ANDROID_ALARM_SET_ALARM: pr_info("[SAPA] %s\n", __func__); if (copy_from_user(bootalarm_data, (void __user *)arg, 14)) { rv = -EFAULT; goto err1; } rv = alarm_set_alarm(bootalarm_data); break; #endif 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: tmp_time = ktime_to_timespec(alarm_get_elapsed_realtime()); break; case ANDROID_ALARM_TYPE_COUNT: case ANDROID_ALARM_SYSTEMTIME: ktime_get_ts(&tmp_time); break; } if (copy_to_user((void __user *)arg, &tmp_time, sizeof(tmp_time))) { rv = -EFAULT; goto err1; } break; default: rv = -EINVAL; goto err1; } err1: return rv; }
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; 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): mutex_lock(&alarm_mutex); spin_lock_irqsave(&alarm_slock, flags); pr_alarm(IO, "alarm %d clear\n", alarm_type); alarm_try_to_cancel(&alarms[alarm_type]); if (alarm_pending) { alarm_pending &= ~alarm_type_mask; if (!alarm_pending && !wait_pending) wake_unlock(&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(0,0); printk("PM_DEBUG_MXP: RTC alarm has been cleared.\n"); } mutex_unlock(&alarm_mutex); 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: mutex_lock(&alarm_mutex); spin_lock_irqsave(&alarm_slock, flags); /*printk("PM_DEBUG_MXP: alarm %d set %ld.%09ld\n", alarm_type, */ alarm_enabled |= alarm_type_mask; alarm_start_range(&alarms[alarm_type], timespec_to_ktime(new_alarm_time), timespec_to_ktime(new_alarm_time)); spin_unlock_irqrestore(&alarm_slock, flags); //[ECID:0000]ZTE_BSP maxiaoping 20140415 modify MSM8X10 alarm driver for power of charge,start. if ((alarm_type == ANDROID_ALARM_RTC_POWEROFF_WAKEUP) && (ANDROID_ALARM_BASE_CMD(cmd) == ANDROID_ALARM_SET(0))) { set_power_on_alarm(new_alarm_time.tv_sec, 1); /*printk("PM_DEBUG_MXP: RTC alarm type %d is set to %ld.%09ld\n", alarm_type, */ } //[ECID:0000]ZTE_BSP maxiaoping 20140415 modify MSM8X10 alarm driver for power of charge,end. mutex_unlock(&alarm_mutex); 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); pr_alarm(IO, "alarm wait\n"); if (!alarm_pending && wait_pending) { wake_unlock(&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; } rv = alarm_set_rtc(new_rtc_time); 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: case ANDROID_ALARM_RTC_POWEROFF_WAKEUP: getnstimeofday(&tmp_time); break; case ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP: case ANDROID_ALARM_ELAPSED_REALTIME: tmp_time = ktime_to_timespec(alarm_get_elapsed_realtime()); break; case ANDROID_ALARM_TYPE_COUNT: case ANDROID_ALARM_SYSTEMTIME: ktime_get_ts(&tmp_time); break; } if (copy_to_user((void __user *)arg, &tmp_time, sizeof(tmp_time))) { rv = -EFAULT; goto err1; } break; default: rv = -EINVAL; goto err1; } err1: return rv; }