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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 */