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
|
/* $OpenBSD: viareg.h,v 1.6 1997/03/08 16:17:01 briggs Exp $ */
/* $NetBSD: viareg.h,v 1.6 1997/02/28 07:41:41 scottr Exp $ */
/*-
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
* Michael L. Finch, Bradley A. Grantham, and
* Lawrence A. Kesteloot
* All rights reserved.
*
* 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 Alice Group.
* 4. The names of the Alice Group or any of its members may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``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 ALICE GROUP 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.
*
*/
/*
Prototype VIA control definitions
06/04/92,22:33:57 BG Let's see what I can do.
*/
/* VIA1 data register A */
#define DA1I_vSCCWrReq 0x80
#define DA1O_vPage2 0x40
#define DA1I_CPU_ID1 0x40
#define DA1O_vHeadSel 0x20
#define DA1O_vOverlay 0x10
#define DA1O_vSync 0x08
#define DA1O_RESERVED2 0x04
#define DA1O_RESERVED1 0x02
#define DA1O_RESERVED0 0x01
/* VIA1 data register B */
#define DB1I_Par_Err 0x80
#define DB1O_vSndEnb 0x80
#define DB1O_Par_Enb 0x40
#define DB1O_vFDesk2 0x20
#define DB1O_vFDesk1 0x10
#define DB1I_vFDBInt 0x08
#define DB1O_rTCEnb 0x04
#define DB1O_rTCCLK 0x02
#define DB1O_rTCData 0x01
#define DB1I_rTCData 0x01
/* VIA2 data register A */
#define DA2O_v2Ram1 0x80
#define DA2O_v2Ram0 0x40
#define DA2I_v2IRQ0 0x40
#define DA2I_v2IRQE 0x20
#define DA2I_v2IRQD 0x10
#define DA2I_v2IRQC 0x08
#define DA2I_v2IRQB 0x04
#define DA2I_v2IRQA 0x02
#define DA2I_v2IRQ9 0x01
/* VIA2 data register B */
#define DB2O_v2VBL 0x80
#define DB2O_Par_Test 0x80
#define DB2I_v2SNDEXT 0x40
#define DB2I_v2TM0A 0x20
#define DB2I_v2TM1A 0x10
#define DB2I_vFC3 0x08
#define DB2O_vFC3 0x08
#define DB2O_v2PowerOff 0x04
#define DB2O_v2BusLk 0x02
#define DB2O_vCDis 0x01
#define DB2O_CEnable 0x01
/*
* VIA1 interrupts
*/
#define VIA1_T1 6
#define VIA1_T2 5
#define VIA1_ADBCLK 4
#define VIA1_ADBDATA 3
#define VIA1_ADBRDY 2
#define VIA1_VBLNK 1
#define VIA1_ONESEC 0
/* VIA1 interrupt bits */
#define V1IF_IRQ 0x80
#define V1IF_T1 (1 << VIA1_T1)
#define V1IF_T2 (1 << VIA1_T2)
#define V1IF_ADBCLK (1 << VIA1_ADBCLK)
#define V1IF_ADBDATA (1 << VIA1_ADBDATA)
#define V1IF_ADBRDY (1 << VIA1_ADBRDY)
#define V1IF_VBLNK (1 << VIA1_VBLNK)
#define V1IF_ONESEC (1 << VIA1_ONESEC)
/*
* VIA2 interrupts
*/
#define VIA2_T1 6
#define VIA2_T2 5
#define VIA2_ASC 4
#define VIA2_SCSIIRQ 3
#define VIA2_EXPIRQ 2
#define VIA2_SLOTINT 1
#define VIA2_SCSIDRQ 0
/* VIA2 interrupt bits */
#define V2IF_IRQ 0x80
#define V2IF_T1 (1 << VIA2_T1)
#define V2IF_T2 (1 << VIA2_T2)
#define V2IF_ASC (1 << VIA2_ASC)
#define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)
#define V2IF_EXPIRQ (1 << VIA2_EXPIRQ)
#define V2IF_SLOTINT (1 << VIA2_SLOTINT)
#define V2IF_SCSIDRQ (1 << VIA2_SCSIDRQ)
#define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
#define VIA2_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
V2IF_SCSIDRQ)
#define RBV_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
V2IF_SCSIDRQ | V1IF_ADBRDY)
#define ACR_T1LATCH 0x40
extern volatile unsigned char *Via1Base;
extern volatile unsigned char *Via2Base; /* init in VIA_Initialize */
#define VIA1_addr Via1Base /* at PA 0x50f00000 */
#define VIA2OFF 1 /* VIA2 addr = VIA1_addr * 0x2000 */
#define RBVOFF 0x13 /* RBV addr = VIA1_addr * 0x13000 */
#define VIA1 0
extern int VIA2;
/* VIA interface registers */
#define vBufA 0x1e00 /* register A */
#define vBufB 0 /* register B */
#define vDirA 0x0600 /* data direction register */
#define vDirB 0x0400 /* data direction register */
#define vT1C 0x0800
#define vT1CH 0x0a00
#define vT1L 0x0c00
#define vT1LH 0x0e00
#define vT2C 0x1000
#define vT2CH 0x1200
#define vSR 0x1400 /* shift register */
#define vACR 0x1600 /* aux control register */
#define vPCR 0x1800 /* peripheral control register */
#define vIFR 0x1a00 /* interrupt flag register */
#define vIER 0x1c00 /* interrupt enable register */
/* RBV interface registers */
#define rBufB 0 /* register B */
#define rBufA 2 /* register A */
#define rIFR 0x3 /* interrupt flag register (writes?) */
#define rIER 0x13 /* interrupt enable register */
#define rMonitor 0x10 /* Monitor type */
#define rSlotInt 0x12 /* Slot interrupt */
/* RBV monitor type flags and masks */
#define RBVDepthMask 0x07 /* depth in bits */
#define RBVMonitorMask 0x38 /* Type numbers */
#define RBVOff 0x40 /* monitor turn off */
#define RBVMonIDNone 0x38 /* What RBV actually has for no video */
#define RBVMonIDOff 0x0 /* What rbv_vidstatus() returns for no video */
#define RBVMonID15BWP 0x08 /* BW portrait */
#define RBVMonIDRGB 0x10 /* color monitor */
#define RBVMonIDRGB15 0x28 /* 15 inch RGB */
#define RBVMonIDBW 0x30 /* No internal video */
#define via_reg(v, r) (*(Via1Base+(v)*0x2000+(r)))
#define via2_reg(r) (*(Via2Base+(r)))
#define vDirA_ADBState 0x30
void VIA_initialize __P((void));
int rbv_vidstatus __P((void));
void via_shutdown __P((void));
void via_set_modem __P((int));
int add_nubus_intr __P((int, void (*) __P((void *, int)), void *));
void enable_nubus_intr __P((void));
void via1_register_irq __P((int, void (*)(void *), void *));
void via2_register_irq __P((int, void (*)(void *), void *));
extern void (*via1itab[7]) __P((void *));
extern void (*via2itab[7]) __P((void *));
|
