1 /* $NetBSD: viareg.h,v 1.9 2012/02/01 02:02:07 matt Exp $ */
2
3 /*-
4 * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
5 * Michael L. Finch, Bradley A. Grantham, and
6 * Lawrence A. Kesteloot
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the Alice Group.
20 * 4. The names of the Alice Group or any of its members may not be used
21 * to endorse or promote products derived from this software without
22 * specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 */
36 /*
37
38 Prototype VIA control definitions
39
40 06/04/92,22:33:57 BG Let's see what I can do.
41
42 */
43
44
45 /* VIA1 data register A */
46 #define DA1I_vSCCWrReq 0x80
47 #define DA1O_vPage2 0x40
48 #define DA1I_CPU_ID1 0x40
49 #define DA1O_vHeadSel 0x20
50 #define DA1O_vOverlay 0x10
51 #define DA1O_vSync 0x08
52 #define DA1O_RESERVED2 0x04
53 #define DA1O_RESERVED1 0x02
54 #define DA1O_RESERVED0 0x01
55
56 /* VIA1 data register B */
57 #define DB1I_Par_Err 0x80
58 #define DB1O_vSndEnb 0x80
59 #define DB1O_Par_Enb 0x40
60 #define DB1O_vFDesk2 0x20
61 #define DB1O_vFDesk1 0x10
62 #define DB1I_vFDBInt 0x08
63 #define DB1O_rTCEnb 0x04
64 #define DB1O_rTCCLK 0x02
65 #define DB1O_rTCData 0x01
66 #define DB1I_rTCData 0x01
67
68 /* VIA2 data register A */
69 #define DA2O_v2Ram1 0x80
70 #define DA2O_v2Ram0 0x40
71 #define DA2I_v2IRQ0 0x40
72 #define DA2I_v2IRQE 0x20
73 #define DA2I_v2IRQD 0x10
74 #define DA2I_v2IRQC 0x08
75 #define DA2I_v2IRQB 0x04
76 #define DA2I_v2IRQA 0x02
77 #define DA2I_v2IRQ9 0x01
78
79 /* VIA2 data register B */
80 #define DB2O_v2VBL 0x80
81 #define DB2O_Par_Test 0x80
82 #define DB2I_v2SNDEXT 0x40
83 #define DB2I_v2TM0A 0x20
84 #define DB2I_v2TM1A 0x10
85 #define DB2I_vFC3 0x08
86 #define DB2O_vFC3 0x08
87 #define DB2O_v2PowerOff 0x04
88 #define DB2O_v2BusLk 0x02
89 #define DB2O_vCDis 0x01
90 #define DB2O_CEnable 0x01
91
92 /*
93 * VIA1 interrupts
94 */
95 #define VIA1_T1 6
96 #define VIA1_T2 5
97 #define VIA1_ADBCLK 4
98 #define VIA1_ADBDATA 3
99 #define VIA1_ADBRDY 2
100 #define VIA1_VBLNK 1
101 #define VIA1_ONESEC 0
102
103 /* VIA1 interrupt bits */
104 #define V1IF_IRQ 0x80
105 #define V1IF_T1 (1 << VIA1_T1)
106 #define V1IF_T2 (1 << VIA1_T2)
107 #define V1IF_ADBCLK (1 << VIA1_ADBCLK)
108 #define V1IF_ADBDATA (1 << VIA1_ADBDATA)
109 #define V1IF_ADBRDY (1 << VIA1_ADBRDY)
110 #define V1IF_VBLNK (1 << VIA1_VBLNK)
111 #define V1IF_ONESEC (1 << VIA1_ONESEC)
112
113 /*
114 * VIA2 interrupts
115 */
116 #define VIA2_T1 6
117 #define VIA2_T2 5
118 #define VIA2_ASC 4
119 #define VIA2_SCSIIRQ 3
120 #define VIA2_EXPIRQ 2
121 #define VIA2_SLOTINT 1
122 #define VIA2_SCSIDRQ 0
123
124 /* VIA2 interrupt bits */
125 #define V2IF_IRQ 0x80
126 #define V2IF_T1 (1 << VIA2_T1)
127 #define V2IF_T2 (1 << VIA2_T2)
128 #define V2IF_ASC (1 << VIA2_ASC)
129 #define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)
130 #define V2IF_EXPIRQ (1 << VIA2_EXPIRQ)
131 #define V2IF_SLOTINT (1 << VIA2_SLOTINT)
132 #define V2IF_SCSIDRQ (1 << VIA2_SCSIDRQ)
133
134 #define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
135 #define VIA2_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
136 V2IF_SCSIDRQ)
137
138 #define RBV_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
139 V2IF_SCSIDRQ | V1IF_ADBRDY)
140
141 #define ACR_T1LATCH 0x40
142
143 extern volatile unsigned char *Via1Base;
144 #define VIA1_addr Via1Base /* at PA 0x50f00000 */
145 #define VIA2OFF 1 /* VIA2 addr = VIA1_addr * 0x2000 */
146 #define RBVOFF 0x13 /* RBV addr = VIA1_addr * 0x13000 */
147
148 #define VIA1 0
149 #define VIA2 0
150
151 /* VIA interface registers */
152 #define vBufB 0x0000 /* register B */
153 #define vBufA 0x0200 /* register A */
154 #define vDirB 0x0400 /* data direction register */
155 #define vDirA 0x0600 /* data direction register */
156 #define vT1C 0x0800
157 #define vT1CH 0x0a00
158 #define vT1L 0x0c00
159 #define vT1LH 0x0e00
160 #define vT2C 0x1000
161 #define vT2CH 0x1200
162 #define vSR 0x1400 /* shift register */
163 #define vACR 0x1600 /* aux control register */
164 #define vPCR 0x1800 /* peripheral control register */
165 #define vIFR 0x1a00 /* interrupt flag register */
166 #define vIER 0x1c00 /* interrupt enable register */
167
168 /* RBV interface registers */
169 #define rBufB 0 /* register B */
170 #define rBufA 2 /* register A */
171 #define rIFR 0x3 /* interrupt flag register (writes?) */
172 #define rIER 0x13 /* interrupt enable register */
173 #define rMonitor 0x10 /* Monitor type */
174 #define rSlotInt 0x12 /* Slot interrupt */
175
176 /* RBV monitor type flags and masks */
177 #define RBVDepthMask 0x07 /* depth in bits */
178 #define RBVMonitorMask 0x38 /* Type numbers */
179 #define RBVOff 0x40 /* monitor turn off */
180 #define RBVMonIDNone 0x38 /* What RBV actually has for no video */
181 #define RBVMonIDOff 0x0 /* What rbv_vidstatus() returns for no video */
182 #define RBVMonID15BWP 0x08 /* BW portrait */
183 #define RBVMonIDRGB 0x10 /* color monitor */
184 #define RBVMonIDRGB15 0x28 /* 15 inch RGB */
185 #define RBVMonIDBW 0x30 /* No internal video */
186
187 /* some misc. leftovers */
188 #define vPB 0x0000
189 #define vPB3 0x08
190 #define vPB4 0x10
191 #define vPB5 0x20
192 #define vSR_INT 0x04
193 #define vSR_OUT 0x10
194
195 #define via_reg(v, r) (*(Via1Base + (r)))
196
197 static inline void via_reg_and(int, int, int);
198 static inline void via_reg_or(int, int, int);
199 static inline void via_reg_xor(int, int, int);
200 static inline void write_via_reg(int, int, int);
201 static inline int read_via_reg(int, int);
202
203 static inline void
via_reg_and(int ign,int reg,int val)204 via_reg_and(int ign, int reg, int val)
205 {
206 volatile uint8_t *addr = Via1Base + reg;
207
208 out8(addr, in8(addr) & val);
209 }
210
211 static inline void
via_reg_or(int ign,int reg,int val)212 via_reg_or(int ign, int reg, int val)
213 {
214 volatile uint8_t *addr = Via1Base + reg;
215
216 out8(addr, in8(addr) | val);
217 }
218
219 static inline void
via_reg_xor(int ign,int reg,int val)220 via_reg_xor(int ign, int reg, int val)
221 {
222 volatile uint8_t *addr = Via1Base + reg;
223
224 out8(addr, in8(addr) ^ val);
225 }
226
227 static inline int
read_via_reg(int ign,int reg)228 read_via_reg(int ign, int reg)
229 {
230 volatile uint8_t *addr = Via1Base + reg;
231
232 return in8(addr);
233 }
234
235 static inline void
write_via_reg(int ign,int reg,int val)236 write_via_reg(int ign, int reg, int val)
237 {
238 volatile uint8_t *addr = Via1Base + reg;
239
240 out8(addr, val);
241 }
242
243
244
245 #define vDirA_ADBState 0x30
246
247 void via_init(void);
248 int rbv_vidstatus(void);
249 void via_shutdown(void);
250 void via_set_modem(int);
251 int add_nubus_intr(int, void (*)(void *, int), void *);
252 void enable_nubus_intr(void);
253 void via1_register_irq(int, void (*)(void *), void *);
254 void via2_register_irq(int, void (*)(void *), void *);
255
256 extern void (*via1itab[7])(void *);
257 extern void (*via2itab[7])(void *);
258