mc146818.h

QNX ADS BSP code for i.MX27 chips

/*
 * $QNXLicenseC: 
 * Copyright 2007, QNX Software Systems.  
 *  
 * Licensed under the Apache License, Version 2.0 (the "License"). You  
 * may not reproduce, modify or distribute this software except in  
 * compliance with the License. You may obtain a copy of the License  
 * at: http://www.apache.org/licenses/LICENSE-2.0  
 *  
 * Unless required by applicable law or agreed to in writing, software  
 * distributed under the License is distributed on an "AS IS" basis,  
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied. 
 * 
 * This file may contain contributions from others, either as  
 * contributors under the License or as licensors under other terms.   
 * Please review this entire file for other proprietary rights or license  
 * notices, as well as the QNX Development Suite License Guide at  
 * http://licensing.qnx.com/license-guide/ for other information. 
 * $
 */
 
 #define MC146818_SRA		0x0A	/* MC146818 Status Register A */
#define MC146818_SRA_UIP	0x80	/* Update in progress */

#define	MC146818_SRB		0x0B	/* MC146818 Status Register B */
#define MC146818_SRB_DSE	0x01
#define MC146818_SRB_24_12	0x02
#define MC146818_SRB_DM		0x04
#define MC146818_SRB_SQWE	0x08
#define MC146818_SRB_UIE	0x10
#define MC146818_SRB_AIE	0x20	/* Alarm interrupt enable */
#define MC146818_SRB_PIE	0x40
#define MC146818_SRB_SET 	0x80 	/* Snap User Copy of time */

#define	MC146818_SRC		0x0C		/* MC146818 Status Register C */
#define MC146818_SRD		0x0D		/* MC146818 Status Register D */

extern int      rtc_read(struct tm *tmbuf);
extern int      rtc_write(struct tm *tmbuf);
extern unsigned __rcmos(unsigned addr);
extern unsigned __wcmos(unsigned addr, unsigned value);