diff options
Diffstat (limited to 'include/linux/alarmtimer.h')
| -rw-r--r-- | include/linux/alarmtimer.h | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h index a899402a5a0e..3ffa5341dce2 100644 --- a/include/linux/alarmtimer.h +++ b/include/linux/alarmtimer.h @@ -1,24 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_ALARMTIMER_H #define _LINUX_ALARMTIMER_H #include <linux/time.h> #include <linux/hrtimer.h> #include <linux/timerqueue.h> -#include <linux/rtc.h> + +struct rtc_device; enum alarmtimer_type { ALARM_REALTIME, ALARM_BOOTTIME, + /* Supported types end here */ ALARM_NUMTYPE, -}; -enum alarmtimer_restart { - ALARMTIMER_NORESTART, - ALARMTIMER_RESTART, + /* Used for tracing information. No usable types. */ + ALARM_REALTIME_FREEZER, + ALARM_BOOTTIME_FREEZER, }; - #define ALARMTIMER_STATE_INACTIVE 0x00 #define ALARMTIMER_STATE_ENQUEUED 0x01 @@ -26,25 +27,25 @@ enum alarmtimer_restart { * struct alarm - Alarm timer structure * @node: timerqueue node for adding to the event list this value * also includes the expiration time. - * @period: Period for recuring alarms + * @timer: hrtimer used to schedule events while running * @function: Function pointer to be executed when the timer fires. - * @type: Alarm type (BOOTTIME/REALTIME) - * @enabled: Flag that represents if the alarm is set to fire or not + * @type: Alarm type (BOOTTIME/REALTIME). + * @state: Flag that represents if the alarm is set to fire or not. * @data: Internal data value. */ struct alarm { struct timerqueue_node node; struct hrtimer timer; - enum alarmtimer_restart (*function)(struct alarm *, ktime_t now); + void (*function)(struct alarm *, ktime_t now); enum alarmtimer_type type; int state; void *data; }; void alarm_init(struct alarm *alarm, enum alarmtimer_type type, - enum alarmtimer_restart (*function)(struct alarm *, ktime_t)); -int alarm_start(struct alarm *alarm, ktime_t start); -int alarm_start_relative(struct alarm *alarm, ktime_t start); + void (*function)(struct alarm *, ktime_t)); +void alarm_start(struct alarm *alarm, ktime_t start); +void alarm_start_relative(struct alarm *alarm, ktime_t start); void alarm_restart(struct alarm *alarm); int alarm_try_to_cancel(struct alarm *alarm); int alarm_cancel(struct alarm *alarm); @@ -53,7 +54,11 @@ u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval); u64 alarm_forward_now(struct alarm *alarm, ktime_t interval); ktime_t alarm_expires_remaining(const struct alarm *alarm); +#ifdef CONFIG_RTC_CLASS /* Provide way to access the rtc device being used by alarmtimers */ struct rtc_device *alarmtimer_get_rtcdev(void); +#else +static inline struct rtc_device *alarmtimer_get_rtcdev(void) { return NULL; } +#endif #endif |