arch/powerpc/include/asm/mpic_timer.h

   1 /*
   2  * arch/powerpc/include/asm/mpic_timer.h
   3  *
   4  * Header file for Mpic Global Timer
   5  *
   6  * Copyright 2013 Freescale Semiconductor, Inc.
   7  *
   8  * Author: Wang Dongsheng <Dongsheng.Wang@freescale.com>
   9  *         Li Yang <leoli@freescale.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the
  13  * Free Software Foundation; either version 2 of the License, or (at your
  14  * option) any later version.
  15  */
  16
  17 #ifndef __MPIC_TIMER__
  18 #define __MPIC_TIMER__
  19
  20 #include <linux/interrupt.h>
  21 #include <linux/time.h>
  22
  23 struct mpic_timer {
  24         void                    *dev;
  25         struct cascade_priv     *cascade_handle;
  26         unsigned int            num;
  27         unsigned int            irq;
  28 };
  29
  30 #ifdef CONFIG_MPIC_TIMER
  31 struct mpic_timer *mpic_request_timer(irq_handler_t fn,  void *dev,
  32                 const struct timeval *time);
  33 void mpic_start_timer(struct mpic_timer *handle);
  34 void mpic_stop_timer(struct mpic_timer *handle);
  35 void mpic_get_remain_time(struct mpic_timer *handle, struct timeval *time);
  36 void mpic_free_timer(struct mpic_timer *handle);
  37 #else
  38 struct mpic_timer *mpic_request_timer(irq_handler_t fn,  void *dev,
  39                 const struct timeval *time) { return NULL; }
  40 void mpic_start_timer(struct mpic_timer *handle) { }
  41 void mpic_stop_timer(struct mpic_timer *handle) { }
  42 void mpic_get_remain_time(struct mpic_timer *handle, struct timeval *time) { }
  43 void mpic_free_timer(struct mpic_timer *handle) { }
  44 #endif
  45
  46 #endif