80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/* Copyright (c) 2012, 2014, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ARCH_ARM_MACH_MSM_EVENT_TIMER_H
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#define __ARCH_ARM_MACH_MSM_EVENT_TIMER_H
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#include <linux/hrtimer.h>
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struct event_timer_info;
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#ifdef CONFIG_MSM_EVENT_TIMER
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/**
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* add_event_timer() : Add a wakeup event. Intended to be called
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* by clients once. Returns a handle to be used
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* for future transactions.
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* @irq : Interrupt number to track affinity.
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* @function : The callback function will be called when event
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* timer expires.
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* @data : Callback data provided by client.
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*/
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struct event_timer_info *add_event_timer(uint32_t irq,
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void (*function)(void *), void *data);
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/** activate_event_timer() : Set the expiration time for an event in absolute
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* ktime. This is a oneshot event timer, clients
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* should call this again to set another expiration.
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* @event : Event handle.
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* @event_time : Event time in absolute ktime.
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*/
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void activate_event_timer(struct event_timer_info *event, ktime_t event_time);
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/**
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* deactivate_event_timer() : Deactivate an event timer.
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* @event: event handle.
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*/
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void deactivate_event_timer(struct event_timer_info *event);
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/**
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* destroy_event_timer() : Free the event info data structure allocated during
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* add_event_timer().
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* @event: event handle.
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*/
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void destroy_event_timer(struct event_timer_info *event);
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/**
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* get_next_event_timer() : Get the next wakeup event.
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* returns a ktime value of the next
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* expiring event.
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*/
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ktime_t get_next_event_time(int cpu);
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#else
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static inline void *add_event_timer(uint32_t irq, void (*function)(void *),
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void *data)
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{
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return NULL;
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}
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static inline void activate_event_timer(void *event, ktime_t event_time) {}
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static inline void deactivate_event_timer(void *event) {}
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static inline void destroy_event_timer(void *event) {}
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static inline ktime_t get_next_event_time(int cpu)
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{
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return ns_to_ktime(0);
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}
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#endif /* CONFIG_MSM_EVENT_TIMER_MANAGER */
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#endif /* __ARCH_ARM_MACH_MSM_EVENT_TIMER_H */
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