91 lines
3.5 KiB
C
91 lines
3.5 KiB
C
/* $NetBSD: intersil7170.h,v 1.1.1.1 1998/06/20 04:58:52 eeh Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1993 Adam Glass
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Adam Glass.
|
|
* 4. The name of the Author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Driver support for the intersil7170 used in sun[34]s to provide
|
|
* real time clock and time-of-day support.
|
|
*
|
|
* Derived from: datasheet "ICM7170 a uP-Compatible Real-Time Clock"
|
|
* document #301680-005, Dec 85
|
|
*/
|
|
|
|
struct date_time { /* from p. 7 of 10 */
|
|
volatile unsigned char dt_csec;
|
|
volatile unsigned char dt_hour;
|
|
volatile unsigned char dt_min;
|
|
volatile unsigned char dt_sec;
|
|
volatile unsigned char dt_month;
|
|
volatile unsigned char dt_day;
|
|
volatile unsigned char dt_year;
|
|
volatile unsigned char dt_dow;
|
|
};
|
|
|
|
struct intersil7170 {
|
|
struct date_time counters;
|
|
struct date_time clk_ram; /* should be ok as both are word aligned */
|
|
volatile unsigned char clk_intr_reg;
|
|
volatile unsigned char clk_cmd_reg;
|
|
};
|
|
|
|
/* bit assignments for command register, p. 6 of 10, write-only */
|
|
#define INTERSIL_CMD_FREQ_32K 0x0
|
|
#define INTERSIL_CMD_FREQ_1M 0x1
|
|
#define INTERSIL_CMD_FREQ_2M 0x2
|
|
#define INTERSIL_CMD_FREQ_4M 0x3
|
|
|
|
#define INTERSIL_CMD_12HR_MODE 0x0
|
|
#define INTERSIL_CMD_24HR_MODE 0x4
|
|
|
|
#define INTERSIL_CMD_STOP 0x0
|
|
#define INTERSIL_CMD_RUN 0x8
|
|
|
|
#define INTERSIL_CMD_IDISABLE 0x0
|
|
#define INTERSIL_CMD_IENABLE 0x10
|
|
|
|
#define INTERSIL_CMD_TEST_MODE 0x20
|
|
#define INTERSIL_CMD_NORMAL_MODE 0x0
|
|
|
|
/* bit assignments for interrupt register r/w, p 7 of 10*/
|
|
|
|
#define INTERSIL_INTER_ALARM 0x1 /* r/w */
|
|
#define INTERSIL_INTER_CSECONDS 0x2 /* r/w */
|
|
#define INTERSIL_INTER_DSECONDS 0x4 /* r/w */
|
|
#define INTERSIL_INTER_SECONDS 0x8 /* r/w */
|
|
#define INTERSIL_INTER_MINUTES 0x10 /* r/w */
|
|
#define INTERSIL_INTER_HOURS 0x20 /* r/w */
|
|
#define INTERSIL_INTER_DAYS 0x40 /* r/w */
|
|
#define INTERSIL_INTER_PENDING 0x80 /* read-only */
|
|
|
|
#define INTERSIL_INTER_BITS "\20\10PENDING\7DAYS\6HRS\5MIN\4SCDS\3DSEC\2CSEC\1ALARM"
|
|
|