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/*
* 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.rtems.com/license/LICENSE.
*/
#ifndef __LIBCHIP_RTC_h
#define __LIBCHIP_RTC_h
#include <stdbool.h>
#include <stdint.h>
#include <rtems.h>
/*
* Types for get and set register routines
*/
typedef uint32_t (*getRegister_f)(uintptr_t port, uint8_t reg);
typedef void (*setRegister_f)(uintptr_t port, uint8_t reg, uint32_t value);
typedef struct _rtc_fns {
void (*deviceInitialize)(int minor);
int (*deviceGetTime)(int minor, rtems_time_of_day *time);
int (*deviceSetTime)(int minor, const 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_MC146818A /* Motorola MC146818A */
} 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.
*
* 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 {
const char *sDeviceName;
rtc_devs deviceType;
const rtc_fns *pDeviceFns;
bool (*deviceProbe)(int minor);
void *pDeviceParams;
uintptr_t ulCtrlPort1;
uintptr_t ulDataPort;
getRegister_f getRegister;
setRegister_f setRegister;
} rtc_tbl;
extern rtc_tbl RTC_Table[];
extern size_t RTC_Count;
extern bool rtc_probe( int minor );
#endif
/* end of include file */
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