1 /*        $NetBSD: intioreg.h,v 1.5 2008/04/28 20:23:19 martin Exp $  */
2 
3 /*-
4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Gregory McGarry.
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  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  *  Registers for interface to the wired devices.
34  */
35 
36 /* HP3xx/4xx registers */
37 #define INTIO_DEV_3xx_PAD0    0
38 #define INTIO_DEV_3xx_DATA    1
39 #define INTIO_DEV_3xx_PAD1    2
40 #define INTIO_DEV_3xx_CMD     3
41 #define INTIO_DEV_3xx_STAT    3
42 
43 /* HP7xx registers - XXX check these */
44 #define INTIO_DEV_7xx_RSTHOLD 0
45 #define INTIO_DEV_7xx_DATA    2048
46 #define INTIO_DEV_7xx_CMD     2049
47 #define INTIO_DEV_7xx_STAT    2049
48 #define INTIO_DEV_7xx_RSTREL  3072
49 
50 /* HP8xx registers - XXX check these */
51 #define INTIO_DEV_8xx_DATA    3
52 #define INTIO_DEV_8xx_CMD     11
53 #define INTIO_DEV_8xx_STAT    11
54 
55 /* Status bits */
56 #define INTIO_DEV_DATA_READY  0x01
57 #define INTIO_DEV_BUSY                  0x02
58 /* the top four bits specify a "service request" status code */
59 #define INTIO_DEV_SRSHIFT     4
60 #define INTIO_DEV_SRMASK      0x0f
61 
62 /* Valid "service request" status codes */
63 #define INTIO_DEV_SR_DATAAVAIL          0x04
64 /* the specific wired device will overload the remaining bits */
65 
66 
67 /* Base address offsets from intiobase of each device */
68 #define FRODO_BASE  0x01c000
69 #define RTC_BASE    0x020000
70 #define HIL_BASE    0x028000
71 #define HPIB_BASE   0x078000
72 #define DMA_BASE    0x100000
73 #define FB_BASE               0x160000
74