Annotation of sys/dev/ic/intersil7170.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: intersil7170.h,v 1.1 1997/08/08 08:13:04 downsj Exp $ */
2: /* $NetBSD: intersil7170.h,v 1.1 1997/05/02 06:15:28 jeremy Exp $ */
3:
4: /*-
5: * Copyright (c) 1996 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Adam Glass.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #ifndef _INTERSIL7170_H
41: #define _INTERSIL7170_H
42:
43: /*
44: * Driver support for the intersil7170 used in sun[34]s to provide
45: * real time clock and time-of-day support.
46: *
47: * Derived from: datasheet "ICM7170 a uP-Compatible Real-Time Clock"
48: * document #301680-005, Dec 85
49: */
50:
51: struct intersil_dt { /* from p. 7 of 10 */
52: u_int8_t dt_csec;
53: u_int8_t dt_hour;
54: u_int8_t dt_min;
55: u_int8_t dt_sec;
56: u_int8_t dt_month;
57: u_int8_t dt_day;
58: u_int8_t dt_year;
59: u_int8_t dt_dow;
60: };
61:
62: struct intersil7170 {
63: struct intersil_dt counters;
64: struct intersil_dt clk_ram; /* should be ok as both are word aligned */
65: u_int8_t clk_intr_reg;
66: u_int8_t clk_cmd_reg;
67: };
68:
69: /* bit assignments for command register, p. 6 of 10, write-only */
70: #define INTERSIL_CMD_FREQ_32K 0x0
71: #define INTERSIL_CMD_FREQ_1M 0x1
72: #define INTERSIL_CMD_FREQ_2M 0x2
73: #define INTERSIL_CMD_FREQ_4M 0x3
74:
75: #define INTERSIL_CMD_12HR_MODE 0x0
76: #define INTERSIL_CMD_24HR_MODE 0x4
77:
78: #define INTERSIL_CMD_STOP 0x0
79: #define INTERSIL_CMD_RUN 0x8
80:
81: #define INTERSIL_CMD_IDISABLE 0x0
82: #define INTERSIL_CMD_IENABLE 0x10
83:
84: #define INTERSIL_CMD_TEST_MODE 0x20
85: #define INTERSIL_CMD_NORMAL_MODE 0x0
86:
87: /* bit assignments for interrupt register r/w, p 7 of 10*/
88:
89: #define INTERSIL_INTER_ALARM 0x1 /* r/w */
90: #define INTERSIL_INTER_CSECONDS 0x2 /* r/w */
91: #define INTERSIL_INTER_DSECONDS 0x4 /* r/w */
92: #define INTERSIL_INTER_SECONDS 0x8 /* r/w */
93: #define INTERSIL_INTER_MINUTES 0x10 /* r/w */
94: #define INTERSIL_INTER_HOURS 0x20 /* r/w */
95: #define INTERSIL_INTER_DAYS 0x40 /* r/w */
96: #define INTERSIL_INTER_PENDING 0x80 /* read-only */
97:
98: #define INTERSIL_INTER_BITS "\20\10PENDING\7DAYS\6HRS\5MIN\4SCDS\3DSEC\2CSEC\1ALARM"
99:
100: #endif /* _INTERSIL7170_H */
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