81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
|
/* Copyright (c) 2012, 2014, 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.
|
||
|
|
* @irq : Interrupt number to track affinity.
|
||
|
|
* @function : The callback function will be called when event
|
||
|
|
* timer expires.
|
||
|
|
* @data : Callback data provided by client.
|
||
|
|
*/
|
||
|
|
struct event_timer_info *add_event_timer(uint32_t irq,
|
||
|
|
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(int cpu);
|
||
|
|
#else
|
||
|
|
static inline void *add_event_timer(uint32_t irq, 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(int cpu)
|
||
|
|
{
|
||
|
|
return ns_to_ktime(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* CONFIG_MSM_EVENT_TIMER_MANAGER */
|
||
|
|
#endif /* __ARCH_ARM_MACH_MSM_EVENT_TIMER_H */
|