1 /* $NetBSD: tcasic.c,v 1.52 2021/08/07 16:18:41 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30 #include "opt_dec_3000_300.h"
31 #include "opt_dec_3000_500.h"
32
33 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
34
35 __KERNEL_RCSID(0, "$NetBSD: tcasic.c,v 1.52 2021/08/07 16:18:41 thorpej Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/cpu.h>
40 #include <sys/device.h>
41
42 #include <machine/autoconf.h>
43 #include <machine/rpb.h>
44 #include <machine/alpha.h>
45
46 #include <dev/tc/tcvar.h>
47 #include <alpha/tc/tc_conf.h>
48
49 /* Definition of the driver for autoconfig. */
50 static int tcasicmatch(device_t, cfdata_t, void *);
51 static void tcasicattach(device_t, device_t, void *);
52
53 CFATTACH_DECL_NEW(tcasic, 0,
54 tcasicmatch, tcasicattach, NULL, NULL);
55
56 extern struct cfdriver tcasic_cd;
57
58 static int tcasicprint(void *, const char *);
59
60 /* There can be only one. */
61 static int tcasicfound;
62
63 static int
tcasicmatch(device_t parent,cfdata_t cf,void * aux)64 tcasicmatch(device_t parent, cfdata_t cf, void *aux)
65 {
66 struct mainbus_attach_args *ma = aux;
67
68 /* Make sure that we're looking for a TURBOchannel ASIC. */
69 if (strcmp(ma->ma_name, tcasic_cd.cd_name))
70 return (0);
71
72 /* Make sure that the system supports a TURBOchannel ASIC. */
73 if ((cputype != ST_DEC_3000_500) && (cputype != ST_DEC_3000_300))
74 return (0);
75
76 if (tcasicfound)
77 return (0);
78
79 return (1);
80 }
81
82 static void
tcasicattach(device_t parent,device_t self,void * aux)83 tcasicattach(device_t parent, device_t self, void *aux)
84 {
85 struct tcbus_attach_args tba;
86 void (*intr_setup)(void);
87 void (*iointr)(void *, unsigned long);
88
89 printf("\n");
90 tcasicfound = 1;
91
92 switch (cputype) {
93 #ifdef DEC_3000_500
94 case ST_DEC_3000_500:
95
96 intr_setup = tc_3000_500_intr_setup;
97 iointr = tc_3000_500_iointr;
98
99 tba.tba_speed = TC_SPEED_25_MHZ;
100 tba.tba_nslots = tc_3000_500_nslots;
101 tba.tba_slots = tc_3000_500_slots;
102 if (hwrpb->rpb_variation & SV_GRAPHICS) {
103 tba.tba_nbuiltins = tc_3000_500_graphics_nbuiltins;
104 tba.tba_builtins = tc_3000_500_graphics_builtins;
105 } else {
106 tba.tba_nbuiltins = tc_3000_500_nographics_nbuiltins;
107 tba.tba_builtins = tc_3000_500_nographics_builtins;
108 }
109 tba.tba_intr_evcnt = tc_3000_500_intr_evcnt;
110 tba.tba_intr_establish = tc_3000_500_intr_establish;
111 tba.tba_intr_disestablish = tc_3000_500_intr_disestablish;
112 tba.tba_get_dma_tag = tc_dma_get_tag_3000_500;
113
114 /* Do 3000/500-specific DMA setup now. */
115 tc_dma_init_3000_500(tc_3000_500_nslots);
116 break;
117 #endif /* DEC_3000_500 */
118
119 #ifdef DEC_3000_300
120 case ST_DEC_3000_300:
121
122 intr_setup = tc_3000_300_intr_setup;
123 iointr = tc_3000_300_iointr;
124
125 tba.tba_speed = TC_SPEED_12_5_MHZ;
126 tba.tba_nslots = tc_3000_300_nslots;
127 tba.tba_slots = tc_3000_300_slots;
128 tba.tba_nbuiltins = tc_3000_300_nbuiltins;
129 tba.tba_builtins = tc_3000_300_builtins;
130 tba.tba_intr_evcnt = tc_3000_300_intr_evcnt;
131 tba.tba_intr_establish = tc_3000_300_intr_establish;
132 tba.tba_intr_disestablish = tc_3000_300_intr_disestablish;
133 tba.tba_get_dma_tag = tc_dma_get_tag_3000_300;
134 break;
135 #endif /* DEC_3000_300 */
136
137 default:
138 panic("tcasicattach: bad cputype");
139 }
140
141 tba.tba_busname = "tc";
142 tba.tba_memt = tc_bus_mem_init(NULL);
143
144 tc_dma_init();
145
146 (*intr_setup)();
147
148 /* They all come in at 0x800. */
149 mutex_enter(&cpu_lock);
150 scb_set(0x800, iointr, NULL);
151 mutex_exit(&cpu_lock);
152
153 config_found(self, &tba, tcasicprint, CFARGS_NONE);
154 }
155
156 static int
tcasicprint(void * aux,const char * pnp)157 tcasicprint(void *aux, const char *pnp)
158 {
159
160 /* only TCs can attach to tcasics; easy. */
161 if (pnp)
162 aprint_normal("tc at %s", pnp);
163 return (UNCONF);
164 }
165
166 #include "wsdisplay.h"
167
168 #if NWSDISPLAY > 0
169
170 #include "sfb.h"
171 #include "sfbp.h"
172 #include "cfb.h"
173 #include "mfb.h"
174 #include "tfb.h"
175 #include "px.h"
176 #include "pxg.h"
177
178 extern void sfb_cnattach(tc_addr_t);
179 extern void sfbp_cnattach(tc_addr_t);
180 extern void cfb_cnattach(tc_addr_t);
181 extern void mfb_cnattach(tc_addr_t);
182 extern void tfb_cnattach(tc_addr_t);
183 extern void px_cnattach(tc_addr_t);
184 extern void pxg_cnattach(tc_addr_t);
185
186 struct cnboards {
187 const char *cb_tcname;
188 void (*cb_cnattach)(tc_addr_t);
189 } static const cnboards[] = {
190 #if NSFB > 0
191 { "PMAGB-BA", sfb_cnattach },
192 #endif
193 #if NSFBP > 0
194 { "PMAGD ", sfbp_cnattach },
195 #endif
196 #if NCFB > 0
197 { "PMAG-BA ", cfb_cnattach },
198 #endif
199 #if NMFB > 0
200 { "PMAG-AA ", mfb_cnattach },
201 #endif
202 #if NTFB > 0
203 { "PMAG-JA ", tfb_cnattach },
204 #endif
205 #if NPX > 0
206 { "PMAG-CA ", px_cnattach },
207 #endif
208 #if NPXG > 0
209 { "PMAG-DA ", pxg_cnattach },
210 { "PMAG-FA ", pxg_cnattach },
211 { "PMAG-FB ", pxg_cnattach },
212 { "PMAGB-FA", pxg_cnattach },
213 { "PMAGB-FB", pxg_cnattach },
214 #endif
215 };
216
217 /*
218 * tc_fb_cnattach --
219 * Attempt to attach the appropriate display driver to the
220 * output console.
221 */
222 int
tc_fb_cnattach(tc_addr_t tcaddr)223 tc_fb_cnattach(tc_addr_t tcaddr)
224 {
225 char tcname[TC_ROM_LLEN];
226 int i;
227
228 if (tc_badaddr(tcaddr) || (tc_checkslot(tcaddr, tcname, NULL) == 0))
229 return (EINVAL);
230
231 for (i = 0; i < sizeof(cnboards) / sizeof(cnboards[0]); i++)
232 if (strncmp(tcname, cnboards[i].cb_tcname, TC_ROM_LLEN) == 0)
233 break;
234
235 if (i == sizeof(cnboards) / sizeof(cnboards[0]))
236 return (ENXIO);
237
238 (cnboards[i].cb_cnattach)(tcaddr);
239 return (0);
240 }
241 #endif /* if NWSDISPLAY > 0 */
242