Subversion Repositories openrisc_2011-10-31

/*

 *  This file contains the Real-Time Clock definitions.

 *

 *  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.OARcorp.com/rtems/license.html.

 *

 *

 *  $Id: rtc.h,v 1.2 2001-09-27 12:01:42 chris Exp $

 */

#ifndef __LIBCHIP_RTC_h

#define __LIBCHIP_RTC_h

/*

 *  Types for get and set register routines

 */

typedef unsigned32 (*getRegister_f)(unsigned32 port, unsigned8 register);

typedef void       (*setRegister_f)(

                            unsigned32 port, unsigned8 reg, unsigned32 value);

typedef struct _rtc_fns {

  void    (*deviceInitialize)(int minor);

  int     (*deviceGetTime)(int minor, rtems_time_of_day *time);

  int     (*deviceSetTime)(int minor, rtems_time_of_day *time);

} rtc_fns;

typedef enum {

  RTC_M48T08,                  /* SGS-Thomsom M48T08 or M48T18 */

  RTC_ICM7170,                 /* Harris ICM-7170 */

  RTC_CUSTOM                   /* BSP specific driver */

} rtc_devs;

/*

 * Each field is interpreted thus:

 *

 * sDeviceName  This is the name of the device.

 *

 * deviceType   This indicates the chip type.

 *

 * pDeviceFns   This is a pointer to the set of driver routines to use.

 *

 * pDeviceParams This contains either device specific data or a pointer to a

 *              device specific information table.

 *

 * ulCtrlPort1  This is the primary control port number for the device.

 *

 * ulCtrlPort2  This is the secondary control port number.

 *

 * ulDataPort   This is the port number for the data port of the device

 *

 * getRegister  This is the routine used to read register values.

 *

 * setRegister  This is the routine used to write register values.

 */

typedef struct _rtc_tbl {

  char          *sDeviceName;

  rtc_devs       deviceType;

  rtc_fns       *pDeviceFns;

  boolean      (*deviceProbe)(int minor);

  void          *pDeviceParams;

  unsigned32     ulCtrlPort1;

  unsigned32     ulDataPort;

  getRegister_f  getRegister;

  setRegister_f  setRegister;

} rtc_tbl;

extern rtc_tbl        RTC_Table[];

extern unsigned long  RTC_Count;

boolean rtc_probe( int minor );

#endif

/* end of include file */