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      1 /*	$NetBSD: ds1687reg.h,v 1.1 2002/02/10 12:26:01 chris Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Mark Brinicombe.
      5  * Copyright (c) 1998 Causality Limited.
      6  * All rights reserved.
      7  *
      8  * Written by Mark Brinicombe, Causality Limited
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by Mark Brinicombe
     21  *	for the NetBSD Project.
     22  * 4. The name of the company nor the name of the author may be used to
     23  *    endorse or promote products derived from this software without specific
     24  *    prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY CAUASLITY LIMITED ``AS IS'' AND ANY EXPRESS
     27  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     28  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     29  * DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     32  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  */
     38 
     39 #define RTC_ADDR		0x72
     40 #define RTC_ADDR_REG		0x00
     41 #define RTC_DATA_REG		0x01
     42 
     43 #define	RTC_SECONDS		0x00
     44 #define	RTC_SECONDS_ALARM	0x01
     45 #define RTC_MINUTES		0x02
     46 #define RTC_MINUTES_ALARM	0x03
     47 #define	RTC_HOURS		0x04
     48 #define	RTC_HOURS_ALARM		0x05
     49 #define	RTC_DAYOFWEEK		0x06
     50 #define	RTC_DAYOFMONTH		0x07
     51 #define	RTC_MONTH		0x08
     52 #define RTC_YEAR		0x09
     53 
     54 #define RTC_REG_A		0x0a
     55 #define  RTC_REG_A_UIP		0x80	/* Update In Progress */
     56 #define  RTC_REG_A_DV2		0x40	/* Countdown CHain */
     57 #define  RTC_REG_A_DV1		0x20	/* Oscillator Enable */
     58 #define  RTC_REG_A_DV0		0x10	/* Bank Select */
     59 #define  RTC_REG_A_BANK_MASK	RTC_REG_A_DV0
     60 #define  RTC_REG_A_BANK1	RTC_REG_A_DV0
     61 #define  RTC_REG_A_BANK0	0x00
     62 #define  RTC_REG_A_RS_MASK	0x0f	/* Rate select mask */
     63 #define  RTC_REG_A_RS_NONE	0x00
     64 #define  RTC_REG_A_RS_256HZ_1	0x01
     65 #define  RTC_REG_A_RS_128HZ_1	0x02
     66 #define  RTC_REG_A_RS_8192HZ	0x03
     67 #define  RTC_REG_A_RS_4096HZ	0x04
     68 #define  RTC_REG_A_RS_2048HZ	0x05
     69 #define  RTC_REG_A_RS_1024HZ	0x06
     70 #define  RTC_REG_A_RS_512HZ	0x07
     71 #define  RTC_REG_A_RS_256HZ	0x08
     72 #define  RTC_REG_A_RS_128HZ	0x09
     73 #define  RTC_REG_A_RS_64HZ	0x0A
     74 #define  RTC_REG_A_RS_32HZ	0x0B
     75 #define  RTC_REG_A_RS_16HZ	0x0C
     76 #define  RTC_REG_A_RS_8HZ	0x0D
     77 #define  RTC_REG_A_RS_4HZ	0x0E
     78 #define  RTC_REG_A_RS_2HZ	0x0F
     79 
     80 #define RTC_REG_B		0x0b
     81 #define  RTC_REG_B_SET		0x80	/* Inhibit update */
     82 #define  RTC_REG_B_PIE		0x40	/* Periodic Interrupt Enable */
     83 #define  RTC_REG_B_AIE		0x20	/* Alarm Interrupt Enable */
     84 #define  RTC_REG_B_UIE		0x10	/* Updated Ended Interrupt Enable */
     85 #define  RTC_REG_B_SQWE		0x08	/* Square Wave Enable */
     86 #define  RTC_REG_B_DM		0x04	/* Data Mode */
     87 #define  RTC_REG_B_BINARY	RTC_REG_B_DM
     88 #define  RTC_REG_B_BCD		0
     89 #define  RTC_REG_B_24_12	0x02	/* Hour format */
     90 #define  RTC_REG_B_24_HOUR	RTC_REG_B_24_12
     91 #define  RTC_REG_B_12_HOUR	0
     92 #define  RTC_REG_B_DSE		0x01	/* Daylight Savings Enable */
     93 
     94 #define RTC_REG_C		0x0c
     95 #define  RTC_REG_C_IRQF		0x80	/* Interrupt Request Flag */
     96 #define  RTC_REG_C_PF		0x40	/* Periodic Interrupt Flag */
     97 #define  RTC_REG_C_AF		0x20	/* Alarm Interrupt Flag */
     98 #define  RTC_REG_C_UF		0x10	/* Update Ended Flags */
     99 
    100 #define RTC_REG_D		0x0d
    101 #define  RTC_REG_D_VRT		0x80	/* Valid RAM and Time */
    102 
    103 #define RTC_PC_RAM_START	0x0e
    104 #define RTC_PC_RAM_SIZE		50
    105 
    106 #define RTC_BANK0_RAM_START	0x40
    107 #define RTC_BANK0_RAM_SIZE	0x40
    108 
    109 #define RTC_MODEL		0x40
    110 #define RTC_SERIAL_1		0x41
    111 #define RTC_SERIAL_2		0x42
    112 #define RTC_SERIAL_3		0x43
    113 #define RTC_SERIAL_4		0x44
    114 #define RTC_SERIAL_5		0x45
    115 #define RTC_SERIAL_6		0x46
    116 #define RTC_CRC			0x47
    117 #define RTC_CENTURY		0x48
    118 #define RTC_DATE_ALARM		0x49
    119 #define RTC_REG_4A		0x4a
    120 #define  RTC_REG_4A_VRT2	0x80
    121 #define  RTC_REG_4A_INCR	0x40
    122 #define  RTC_REG_4A_PAB		0x08
    123 #define  RTC_REG_4A_RF		0x04
    124 #define RTC_REG_4B		0x4b
    125 #define RTC_EXT_RAM_ADDRESS	0x50
    126 #define RTC_EXT_RAM_DATA	0x53
    127 #define RTC_EXT_RAM_START	0x00
    128 #define RTC_EXT_RAM_SIZE	0x80
    129