forked from Imagelibrary/rtems
100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* This file contains the Real-Time Clock definitions.
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __LIBCHIP_RTC_h
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#define __LIBCHIP_RTC_h
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#include <stdbool.h>
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#include <stdint.h>
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#include <rtems.h>
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/*
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* Types for get and set register routines
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*/
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typedef uint32_t (*getRegister_f)(uintptr_t port, uint8_t reg);
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typedef void (*setRegister_f)(uintptr_t port, uint8_t reg, uint32_t value);
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typedef struct _rtc_fns {
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void (*deviceInitialize)(int minor);
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int (*deviceGetTime)(int minor, rtems_time_of_day *time);
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int (*deviceSetTime)(int minor, const rtems_time_of_day *time);
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} rtc_fns;
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typedef enum {
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RTC_M48T08, /* SGS-Thomsom M48T08 or M48T18 */
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RTC_ICM7170, /* Harris ICM-7170 */
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RTC_CUSTOM, /* BSP specific driver */
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RTC_MC146818A /* Motorola MC146818A */
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} rtc_devs;
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/*
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* Each field is interpreted thus:
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*
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* sDeviceName This is the name of the device.
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*
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* deviceType This indicates the chip type.
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*
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* pDeviceFns This is a pointer to the set of driver routines to use.
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*
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* pDeviceParams This contains either device specific data or a pointer to a
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* device specific information table.
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*
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* ulCtrlPort1 This is the primary control port number for the device.
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*
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* ulDataPort This is the port number for the data port of the device
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*
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* getRegister This is the routine used to read register values.
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*
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* setRegister This is the routine used to write register values.
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*/
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typedef struct _rtc_tbl {
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const char *sDeviceName;
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rtc_devs deviceType;
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const rtc_fns *pDeviceFns;
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bool (*deviceProbe)(int minor);
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void *pDeviceParams;
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uintptr_t ulCtrlPort1;
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uintptr_t ulDataPort;
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getRegister_f getRegister;
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setRegister_f setRegister;
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} rtc_tbl;
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extern rtc_tbl RTC_Table[];
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extern size_t RTC_Count;
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extern bool rtc_probe( int minor );
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#endif
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/* end of include file */
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