summaryrefslogtreecommitdiff
path: root/sys/arch/alpha/tc/ioasicreg.h
blob: 2c09ef47776b8d08a8ea8e1568a218f06b06e04a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
/*	$OpenBSD: ioasicreg.h,v 1.3 1996/10/30 22:41:09 niklas Exp $	*/
/*	$NetBSD: ioasicreg.h,v 1.1 1995/12/20 00:43:22 cgd Exp $	*/

/* 
 * Copyright (c) 1991,1990,1989,1994,1995 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */

/*-
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * The Mach Operating System project at Carnegie-Mellon University,
 * Ralph Campbell and Rick Macklem.
 *
 * 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 the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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.
 *
 *	@(#)asic.h	8.1 (Berkeley) 6/10/93
 */

/*
 * Slot definitions
 */

#define	IOASIC_SLOT_0_START		0x000000
#define	IOASIC_SLOT_1_START		0x040000
#define	IOASIC_SLOT_2_START		0x080000
#define	IOASIC_SLOT_3_START		0x0c0000
#define	IOASIC_SLOT_4_START		0x100000
#define	IOASIC_SLOT_5_START		0x140000
#define	IOASIC_SLOT_6_START		0x180000
#define	IOASIC_SLOT_7_START		0x1c0000
#define	IOASIC_SLOT_8_START		0x200000
#define	IOASIC_SLOT_9_START		0x240000
#define	IOASIC_SLOT_10_START		0x280000
#define	IOASIC_SLOT_11_START		0x2c0000
#define	IOASIC_SLOT_12_START		0x300000
#define	IOASIC_SLOT_13_START		0x340000
#define	IOASIC_SLOT_14_START		0x380000
#define	IOASIC_SLOT_15_START		0x3c0000
#define	IOASIC_SLOTS_END		0x3fffff

/*
 *  Register offsets (slot 1)
 */

#define	IOASIC_SCSI_DMAPTR		IOASIC_SLOT_1_START+0x000
#define	IOASIC_SCSI_NEXTPTR		IOASIC_SLOT_1_START+0x010
#define	IOASIC_LANCE_DMAPTR		IOASIC_SLOT_1_START+0x020
#define	IOASIC_SCC_T1_DMAPTR		IOASIC_SLOT_1_START+0x030
#define	IOASIC_SCC_R1_DMAPTR		IOASIC_SLOT_1_START+0x040
#define	IOASIC_SCC_T2_DMAPTR		IOASIC_SLOT_1_START+0x050
#define	IOASIC_SCC_R2_DMAPTR		IOASIC_SLOT_1_START+0x060
#define	IOASIC_FLOPPY_DMAPTR		IOASIC_SLOT_1_START+0x070
#define	IOASIC_ISDN_X_DMAPTR		IOASIC_SLOT_1_START+0x080
#define	IOASIC_ISDN_X_NEXTPTR		IOASIC_SLOT_1_START+0x090
#define	IOASIC_ISDN_R_DMAPTR		IOASIC_SLOT_1_START+0x0a0
#define	IOASIC_ISDN_R_NEXTPTR		IOASIC_SLOT_1_START+0x0b0
#define	IOASIC_BUFF0			IOASIC_SLOT_1_START+0x0c0
#define	IOASIC_BUFF1			IOASIC_SLOT_1_START+0x0d0
#define	IOASIC_BUFF2			IOASIC_SLOT_1_START+0x0e0
#define	IOASIC_BUFF3			IOASIC_SLOT_1_START+0x0f0
#define	IOASIC_CSR			IOASIC_SLOT_1_START+0x100
#define	IOASIC_INTR			IOASIC_SLOT_1_START+0x110
#define	IOASIC_IMSK			IOASIC_SLOT_1_START+0x120
#define	IOASIC_CURADDR			IOASIC_SLOT_1_START+0x130
#define	IOASIC_ISDN_X_DATA		IOASIC_SLOT_1_START+0x140
#define	IOASIC_ISDN_R_DATA		IOASIC_SLOT_1_START+0x150
#define	IOASIC_LANCE_DECODE		IOASIC_SLOT_1_START+0x160
#define	IOASIC_SCSI_DECODE		IOASIC_SLOT_1_START+0x170
#define	IOASIC_SCC0_DECODE		IOASIC_SLOT_1_START+0x180
#define	IOASIC_SCC1_DECODE		IOASIC_SLOT_1_START+0x190
#define	IOASIC_FLOPPY_DECODE		IOASIC_SLOT_1_START+0x1a0
#define	IOASIC_SCSI_SCR			IOASIC_SLOT_1_START+0x1b0
#define	IOASIC_SCSI_SDR0		IOASIC_SLOT_1_START+0x1c0
#define	IOASIC_SCSI_SDR1		IOASIC_SLOT_1_START+0x1d0

/* System Status and control Register (SSR). */
#define IOASIC_CSR_DMAEN_T1		0x80000000	/* rw */
#define IOASIC_CSR_DMAEN_R1		0x40000000	/* rw */
#define IOASIC_CSR_DMAEN_T2		0x20000000	/* rw */
#define IOASIC_CSR_DMAEN_R2		0x10000000	/* rw */
#define	IOASIC_CSR_FASTMODE		0x08000000	/* rw */
#define IOASIC_CSR_xxx			0x07800000	/* unused/reserved */
#define IOASIC_CSR_FLOPPY_DIR		0x00400000	/* rw */
#define IOASIC_CSR_DMAEN_FLOPPY		0x00200000	/* rw */
#define IOASIC_CSR_DMAEN_ISDN_T		0x00100000	/* rw */
#define IOASIC_CSR_DMAEN_ISDN_R		0x00080000	/* rw */
#define IOASIC_CSR_SCSI_DIR		0x00040000	/* rw */
#define IOASIC_CSR_DMAEN_SCSI		0x00020000	/* rw */
#define IOASIC_CSR_DMAEN_LANCE		0x00010000	/* rw */
/* low 16 bits are rw gp outputs */

/* System Interrupt Register (and Interrupt Mask Register). */
#define	IOASIC_INTR_T1_PAGE_END		0x80000000	/* rz */
#define	IOASIC_INTR_T1_READ_E		0x40000000	/* rz */
#define	IOASIC_INTR_R1_HALF_PAGE	0x20000000	/* rz */
#define	IOASIC_INTR_R1_DMA_OVRUN	0x10000000	/* rz */
#define	IOASIC_INTR_T2_PAGE_END		0x08000000	/* rz */
#define	IOASIC_INTR_T2_READ_E		0x04000000	/* rz */
#define	IOASIC_INTR_R2_HALF_PAGE	0x02000000	/* rz */
#define	IOASIC_INTR_R2_DMA_OVRUN	0x01000000	/* rz */
#define	IOASIC_INTR_FLOPPY_DMA_E	0x00800000	/* rz */
#define	IOASIC_INTR_ISDN_PTR_LOAD	0x00400000	/* rz */
#define	IOASIC_INTR_ISDN_OVRUN		0x00200000	/* rz */
#define	IOASIC_INTR_ISDN_READ_E		0x00100000	/* rz */
#define	IOASIC_INTR_SCSI_PTR_LOAD	0x00080000	/* rz */
#define	IOASIC_INTR_SCSI_OVRUN		0x00040000	/* rz */
#define	IOASIC_INTR_SCSI_READ_E		0x00020000	/* rz */
#define	IOASIC_INTR_LANCE_READ_E	0x00010000	/* rz */
#define	IOASIC_INTR_ISDN		0x00002000	/* ro */
#define	IOASIC_INTR_SEC_CON		0x00000200	/* ro */
#define IOASIC_INTR_LANCE		0x00000100	/* ro */
#define	IOASIC_INTR_SCC_1		0x00000080	/* ro */
#define	IOASIC_INTR_SCC_0		0x00000040	/* ro */
#define	IOASIC_INTR_ALT_CON		0x00000008	/* ro - 3000/500 */
#define	IOASIC_INTR_300_OPT1		IOASIC_INTR_ALT_CON /* ro - 3000/300 */
#define	IOASIC_INTR_300_OPT0		0x00000004	/* ro - 3000/300 */

/* DMA pointer registers (SCSI, Comm, ...) */

#define	IOASIC_DMAPTR_MASK		0xffffffe0
#define	IOASIC_DMAPTR_SHIFT		5
#define	IOASIC_DMAPTR_SET(reg,val) \
    (reg) = (((val)<<IOASIC_DMAPTR_SHIFT)&IOASIC_DMAPTR_MASK)
#define	IOASIC_DMAPTR_GET(reg,val) \
    (val) = (((reg)&IOASIC_DMAPTR_MASK)>>IOASIC_DMAPTR_SHIFT)
#define	IOASIC_DMA_ADDR(p)		(((unsigned)p) << (5-2))

/* For the LANCE DMA pointer register initialization the above suffices */

/* More SCSI DMA registers */

#define	IOASIC_SCR_STATUS		0x00000004
#define	IOASIC_SCR_WORD			0x00000003

/* Various Decode registers */

#define	IOASIC_DECODE_HW_ADDRESS	0x000003f0
#define	IOASIC_DECODE_CHIP_SELECT	0x0000000f

/*
 * Asic register addresses at offset from base.
 */
#define	IOASIC_REG_SCSI_DMAPTR(base)	((base) + IOASIC_SCSI_DMAPTR)
#define	IOASIC_REG_SCSI_DMANPTR(base)	((base) + IOASIC_SCSI_NEXTPTR)
#define	IOASIC_REG_LANCE_DMAPTR(base)	((base) + IOASIC_LANCE_DMAPTR)
#define	IOASIC_REG_SCC_T1_DMAPTR(base)	((base) + IOASIC_SCC_T1_DMAPTR)
#define	IOASIC_REG_SCC_R1_DMAPTR(base)	((base) + IOASIC_SCC_R1_DMAPTR)
#define	IOASIC_REG_SCC_T2_DMAPTR(base)	((base) + IOASIC_SCC_T2_DMAPTR)
#define	IOASIC_REG_SCC_R2_DMAPTR(base)	((base) + IOASIC_SCC_R2_DMAPTR)
#define	IOASIC_REG_FLOPPY_DMAPTR(base)	((base) + IOASIC_FLOPPY_DMAPTR)
#define	IOASIC_REG_ISDN_X_DMAPTR(base)	((base) + IOASIC_ISDN_X_DMAPTR)
#define	IOASIC_REG_ISDN_X_NEXTPTR(base)	((base) + IOASIC_ISDN_X_NEXTPTR)
#define	IOASIC_REG_ISDN_R_DMAPTR(base)	((base) + IOASIC_ISDN_R_DMAPTR)
#define	IOASIC_REG_ISDN_R_NEXTPTR(base)	((base) + IOASIC_ISDN_R_NEXTPTR)
#define	IOASIC_REG_BUFF0(base)		((base) + IOASIC_BUFF0)
#define	IOASIC_REG_BUFF1(base)		((base) + IOASIC_BUFF1)
#define	IOASIC_REG_BUFF2(base)		((base) + IOASIC_BUFF2)
#define	IOASIC_REG_BUFF3(base)		((base) + IOASIC_BUFF3)
#define	IOASIC_REG_CSR(base)		((base) + IOASIC_CSR)
#define	IOASIC_REG_INTR(base)		((base) + IOASIC_INTR)
#define	IOASIC_REG_IMSK(base)		((base) + IOASIC_IMSK)
#define	IOASIC_REG_CURADDR(base)	((base) + IOASIC_CURADDR)
#define	IOASIC_REG_ISDN_X_DATA(base)	((base) + IOASIC_ISDN_X_DATA)
#define	IOASIC_REG_ISDN_R_DATA(base)	((base) + IOASIC_ISDN_R_DATA)
#define	IOASIC_REG_LANCE_DECODE(base)	((base) + IOASIC_LANCE_DECODE)
#define	IOASIC_REG_SCSI_DECODE(base)	((base) + IOASIC_SCSI_DECODE)
#define	IOASIC_REG_SCC0_DECODE(base)	((base) + IOASIC_SCC0_DECODE)
#define	IOASIC_REG_SCC1_DECODE(base)	((base) + IOASIC_SCC1_DECODE)
#define	IOASIC_REG_FLOPPY_DECODE(base)	((base) + IOASIC_FLOPPY_DECODE)
#define	IOASIC_REG_SCSI_SCR(base)	((base) + IOASIC_SCSI_SCR)
#define	IOASIC_REG_SCSI_SDR0(base)	((base) + IOASIC_SCSI_SDR0)
#define	IOASIC_REG_SCSI_SDR1(base)	((base) + IOASIC_SCSI_SDR1)

/*
 * And slot assignments.
 */
#define	IOASIC_SYS_ETHER_ADDRESS(base)	((base) + IOASIC_SLOT_2_START)
#define	IOASIC_SYS_LANCE(base)		((base) + IOASIC_SLOT_3_START)