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/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __ARCH_ARM_MACH_MSM_EVENT_TIMER_H
#define __ARCH_ARM_MACH_MSM_EVENT_TIMER_H
#include <linux/hrtimer.h>
struct event_timer_info;
#ifdef CONFIG_MSM_EVENT_TIMER
/**
* add_event_timer() : Add a wakeup event. Intended to be called
* by clients once. Returns a handle to be used
* for future transactions.
* @function : The callback function will be called when event
* timer expires.
* @data : Callback data provided by client.
*/
struct event_timer_info *add_event_timer(void (*function)(void *), void *data);
/** activate_event_timer() : Set the expiration time for an event in absolute
* ktime. This is a oneshot event timer, clients
* should call this again to set another expiration.
* @event : Event handle.
* @event_time : Event time in absolute ktime.
*/
void activate_event_timer(struct event_timer_info *event, ktime_t event_time);
/**
* deactivate_event_timer() : Deactivate an event timer.
* @event: event handle.
*/
void deactivate_event_timer(struct event_timer_info *event);
/**
* destroy_event_timer() : Free the event info data structure allocated during
* add_event_timer().
* @event: event handle.
*/
void destroy_event_timer(struct event_timer_info *event);
/**
* get_next_event_timer() : Get the next wakeup event.
* returns a ktime value of the next
* expiring event.
*/
ktime_t get_next_event_time(void);
#else
static inline void *add_event_timer(void (*function)(void *), void *data)
{
return NULL;
}
static inline void activate_event_timer(void *event, ktime_t event_time) {}
static inline void deactivate_event_timer(void *event) {}
static inline void destroy_event_timer(void *event) {}
static inline ktime_t get_next_event_time(void)
{
return ns_to_ktime(0);
}
#endif /* CONFIG_MSM_EVENT_TIMER_MANAGER */
#endif /* __ARCH_ARM_MACH_MSM_EVENT_TIMER_H */