clockdrv.h

来自「开放源码的嵌入式开发环境」· C头文件 代码 · 共 55 行

/**
 * @file rtems/clockdrv.h
 */

/*  clock.h
 *
 *  This file describes the Clock Driver for all boards.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: clockdrv.h,v 1.12 2005/01/28 08:04:27 ralf Exp $
 */

#ifndef _RTEMS_CLOCKDRV_H
#define _RTEMS_CLOCKDRV_H

#ifdef __cplusplus
extern "C" {
#endif

/* variables */

extern volatile uint32_t   Clock_driver_ticks;
extern rtems_device_major_number rtems_clock_major;
extern rtems_device_minor_number rtems_clock_minor;

/* default clock driver entry */

#define CLOCK_DRIVER_TABLE_ENTRY \
  { Clock_initialize, NULL, NULL, NULL, NULL, Clock_control }

rtems_device_driver Clock_initialize(
  rtems_device_major_number,
  rtems_device_minor_number,
  void *
);

rtems_device_driver Clock_control(
  rtems_device_major_number major,
  rtems_device_minor_number minor,
  void *pargp
);

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */