xref: /netbsd/sys/arch/acorn32/podulebus/rapidereg.h (revision 6550d01e)
1 /*	$NetBSD: rapidereg.h,v 1.1 2001/10/05 22:27:58 reinoud Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Mark Brinicombe
5  * Copyright (c) 1997 Causality Limited
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Mark Brinicombe
18  *	for the NetBSD Project.
19  * 4. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 /*
35  * Thanks to Chris Honey at Raymond Datalink for providing information on
36  * addressing the RapIDE podule.
37  * RapIDE32 is Copyright (C) 1995,1996 Raymond Datalink. RapIDE32 is
38  * manufactured under license by Yellowstone Educational Solutions.
39  */
40 
41 /*
42  * Registers and address offsets for the Yellowstone RapIDE card.
43  *
44  * These are for issue 2 cards only.
45  */
46 
47 /*
48  * This file needs to be extended to provide register information on
49  * both versions of the card.
50  */
51 
52 /* IDE drive registers */
53 
54 #define PRIMARY_DRIVE_REGISTERS_OFFSET		0x400080
55 #define PRIMARY_AUX_REGISTER_OFFSET		0x400298
56 #define PRIMARY_DATA_REGISTER_OFFSET		0x600080
57 
58 #define SECONDARY_DRIVE_REGISTERS_OFFSET	0x400000
59 #define SECONDARY_AUX_REGISTER_OFFSET		0x400218
60 #define SECONDARY_DATA_REGISTER_OFFSET		0x600000
61 
62 #define DRIVE_REGISTERS_SPACE			0x20
63 #define DRIVE_REGISTER_BYTE_SPACING		4
64 
65 /* Other registers */
66 
67 #define CONTROL_REGISTERS_OFFSET		0x200000
68 #define CONTROL_REGISTER_SPACE			16
69 
70 #define IRQ_MASK_REGISTER_OFFSET		0
71 #define IRQ_STATUS_REGISTER_OFFSET		0
72 #define IRQ_REQUEST_REGISTER_OFFSET		1
73 #define IRQ_REQUEST_REGISTER_BYTE_OFFSET	(IRQ_REQUEST_REGISTER_OFFSET << 2)
74 #define IRQ_CLEAR_REGISTER_OFFSET		1
75 #define PRIMARY_IRQ_MASK			0x01
76 #define SECONDARY_IRQ_MASK			0x02
77 #define IRQ_MASK				(PRIMARY_IRQ_MASK | SECONDARY_IRQ_MASK)
78 
79 #define VERSION_REGISTER_OFFSET			3
80 #define VERSION_REGISTER_MASK			0x03
81 #define VERSION_1_ID				0x00
82 #define VERSION_2_ID				0x01
83 
84 #define PIO_MODE_CONTROL_REGISTER_OFFSET	3
85 #define PIO_MODE_0				0
86 #define PIO_MODE_1				1
87 #define PIO_MODE_2				2
88 #define PIO_MODE_3				3
89 #define PIO_MODE_4				4
90