text: /*
   * arch/arm/include/asm/mach/time.h
   *
   * Copyright (C) 2004 MontaVista Software, Inc.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #ifndef __ASM_ARM_MACH_TIME_H
  #define __ASM_ARM_MACH_TIME_H
  
  #include <linux/sysdev.h>
  
  /*
   * This is our kernel timer structure.
   *
   * - init
   *   Initialise the kernels jiffy timer source, claim interrupt
   *   using setup_irq.  This is called early on during initialisation
   *   while interrupts are still disabled on the local CPU.
   * - suspend
   *   Suspend the kernel jiffy timer source, if necessary.  This
   *   is called with interrupts disabled, after all normal devices
   *   have been suspended.  If no action is required, set this to
   *   NULL.
   * - resume
   *   Resume the kernel jiffy timer source, if necessary.  This
   *   is called with interrupts disabled before any normal devices
   *   are resumed.  If no action is required, set this to NULL.
   * - offset
   *   Return the timer offset in microseconds since the last timer
   *   interrupt.  Note: this must take account of any unprocessed
   *   timer interrupt which may be pending.
   */
  struct sys_timer {
  	struct sys_device	dev;
  	void			(*init)(void);
  	void			(*suspend)(void);
  	void			(*resume)(void);
  #ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
  	unsigned long		(*offset)(void);
  #endif
  };
  
  extern struct sys_timer *system_timer;
  extern void timer_tick(void);
  
  #endif
  