1 /* $NetBSD: dec_kn20aa.c,v 1.68 2024/03/31 19:06:31 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996, 1997 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 * Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
31 */
32
33 #include "opt_kgdb.h"
34
35 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
36
37 __KERNEL_RCSID(0, "$NetBSD: dec_kn20aa.c,v 1.68 2024/03/31 19:06:31 thorpej Exp $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/device.h>
42 #include <sys/lwp.h>
43 #include <sys/termios.h>
44
45 #include <sys/conf.h>
46 #include <dev/cons.h>
47
48 #include <machine/rpb.h>
49 #include <machine/autoconf.h>
50 #include <machine/cpuconf.h>
51 #include <sys/bus.h>
52 #include <machine/alpha.h>
53 #include <machine/logout.h>
54
55 #include <dev/ic/comreg.h>
56 #include <dev/ic/comvar.h>
57
58 #include <dev/isa/isareg.h>
59 #include <dev/isa/isavar.h>
60 #include <dev/ic/i8042reg.h>
61 #include <dev/ic/pckbcvar.h>
62 #include <dev/pci/pcireg.h>
63 #include <dev/pci/pcivar.h>
64
65 #include <alpha/pci/ciareg.h>
66 #include <alpha/pci/ciavar.h>
67
68 #include <dev/scsipi/scsi_all.h>
69 #include <dev/scsipi/scsipi_all.h>
70 #include <dev/scsipi/scsiconf.h>
71
72 #include "pckbd.h"
73
74 #ifndef CONSPEED
75 #define CONSPEED TTYDEF_SPEED
76 #endif
77 static int comcnrate = CONSPEED;
78
79 void dec_kn20aa_init(void);
80 static void dec_kn20aa_cons_init(void);
81 static void dec_kn20aa_device_register(device_t, void *);
82
83 static void dec_kn20aa_mcheck_handler
84 (unsigned long, struct trapframe *, unsigned long, unsigned long);
85
86 static void dec_kn20aa_mcheck(unsigned long, unsigned long,
87 unsigned long, struct trapframe *);
88
89 #ifdef KGDB
90 #include <machine/db_machdep.h>
91
92 static const char *kgdb_devlist[] = {
93 "com",
94 NULL,
95 };
96 #endif /* KGDB */
97
98 const struct alpha_variation_table dec_kn20aa_variations[] = {
99 { 0, "AlphaStation 500 or 600 (KN20AA)" },
100 { 0, NULL },
101 };
102
103 void
dec_kn20aa_init(void)104 dec_kn20aa_init(void)
105 {
106 uint64_t variation;
107
108 platform.family = "AlphaStation 500 or 600 (KN20AA)";
109
110 if ((platform.model = alpha_dsr_sysname()) == NULL) {
111 variation = hwrpb->rpb_variation & SV_ST_MASK;
112 if ((platform.model = alpha_variation_name(variation,
113 dec_kn20aa_variations)) == NULL)
114 platform.model = alpha_unknown_sysname();
115 }
116
117 platform.iobus = "cia";
118 platform.cons_init = dec_kn20aa_cons_init;
119 platform.device_register = dec_kn20aa_device_register;
120 platform.mcheck_handler = dec_kn20aa_mcheck_handler;
121 }
122
123 static void
dec_kn20aa_cons_init(void)124 dec_kn20aa_cons_init(void)
125 {
126 struct ctb *ctb;
127 struct cia_config *ccp;
128 extern struct cia_config cia_configuration;
129
130 ccp = &cia_configuration;
131 cia_init(ccp);
132
133 ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
134
135 switch (ctb->ctb_term_type) {
136 case CTB_PRINTERPORT:
137 /* serial console ... */
138 /* XXX */
139 {
140 /*
141 * Delay to allow PROM putchars to complete.
142 * FIFO depth * character time,
143 * character time = (1000000 / (defaultrate / 10))
144 */
145 DELAY(160000000 / comcnrate);
146
147 if(comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
148 COM_FREQ, COM_TYPE_NORMAL,
149 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
150 panic("can't init serial console");
151
152 break;
153 }
154
155 case CTB_GRAPHICS:
156 #if NPCKBD > 0
157 /* display console ... */
158 /* XXX */
159 (void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
160 PCKBC_KBD_SLOT, 0);
161
162 if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
163 CTB_TURBOSLOT_TYPE_ISA)
164 isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
165 else
166 pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
167 &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
168 CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
169 #else
170 panic("not configured to use display && keyboard console");
171 #endif
172 break;
173
174 default:
175 printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
176 printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
177
178 panic("consinit: unknown console type %ld",
179 ctb->ctb_term_type);
180 }
181 #ifdef KGDB
182 /* Attach the KGDB device. */
183 alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
184 #endif /* KGDB */
185 }
186
187 static void
dec_kn20aa_device_register(device_t dev,void * aux)188 dec_kn20aa_device_register(device_t dev, void *aux)
189 {
190 static int found, initted, diskboot, netboot;
191 static device_t pcidev, ctrlrdev;
192 struct bootdev_data *b = bootdev_data;
193 device_t parent = device_parent(dev);
194
195 if (b == NULL || found)
196 return;
197
198 if (!initted) {
199 diskboot = (strcasecmp(b->protocol, "SCSI") == 0);
200 netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
201 (strcasecmp(b->protocol, "MOP") == 0);
202 #if 0
203 printf("diskboot = %d, netboot = %d\n", diskboot, netboot);
204 #endif
205 initted =1;
206 }
207
208 if (pcidev == NULL) {
209 if (!device_is_a(dev, "pci"))
210 return;
211 else {
212 struct pcibus_attach_args *pba = aux;
213
214 if ((b->slot / 1000) != pba->pba_bus)
215 return;
216
217 pcidev = dev;
218 #if 0
219 printf("\npcidev = %s\n", device_xname(dev));
220 #endif
221 return;
222 }
223 }
224
225 if (ctrlrdev == NULL) {
226 if (parent != pcidev)
227 return;
228 else {
229 struct pci_attach_args *pa = aux;
230 int slot;
231
232 slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
233 pa->pa_device;
234 if (b->slot != slot)
235 return;
236
237 if (netboot) {
238 booted_device = dev;
239 #if 0
240 printf("\nbooted_device = %s\n", device_xname(dev));
241 #endif
242 found = 1;
243 } else {
244 ctrlrdev = dev;
245 #if 0
246 printf("\nctrlrdev = %s\n", device_xname(dev));
247 #endif
248 }
249 return;
250 }
251 }
252
253 if (!diskboot)
254 return;
255
256 if (device_is_a(dev, "sd") ||
257 device_is_a(dev, "st") ||
258 device_is_a(dev, "cd")) {
259 struct scsipibus_attach_args *sa = aux;
260 struct scsipi_periph *periph = sa->sa_periph;
261 int unit;
262
263 if (device_parent(parent) != ctrlrdev)
264 return;
265
266 unit = periph->periph_target * 100 + periph->periph_lun;
267 if (b->unit != unit)
268 return;
269 if (b->channel != periph->periph_channel->chan_channel)
270 return;
271
272 /* we've found it! */
273 booted_device = dev;
274 #if 0
275 printf("\nbooted_device = %s\n", device_xname(dev));
276 #endif
277 found = 1;
278 }
279 }
280
281 static void
dec_kn20aa_mcheck(unsigned long mces,unsigned long type,unsigned long logout,struct trapframe * framep)282 dec_kn20aa_mcheck(unsigned long mces, unsigned long type, unsigned long logout, struct trapframe *framep)
283 {
284 struct mchkinfo *mcp;
285 mc_hdr_ev5 *hdr;
286 mc_uc_ev5 *mptr;
287
288 /*
289 * If we expected a machine check, just go handle it in common code.
290 */
291 mcp = &curcpu()->ci_mcinfo;
292 if (mcp->mc_expected) {
293 machine_check(mces, framep, type, logout);
294 return;
295 }
296
297 hdr = (mc_hdr_ev5 *) logout;
298 mptr = (mc_uc_ev5 *) (logout + sizeof (*hdr));
299
300 /*
301 * Now we can finally print some stuff...
302 */
303 ev5_logout_print(hdr, mptr);
304
305 machine_check(mces, framep, type, logout);
306 }
307
308 static void
dec_kn20aa_mcheck_handler(unsigned long mces,struct trapframe * framep,unsigned long vector,unsigned long param)309 dec_kn20aa_mcheck_handler(unsigned long mces, struct trapframe *framep, unsigned long vector, unsigned long param)
310 {
311
312 switch (vector) {
313 case ALPHA_SYS_MCHECK:
314 case ALPHA_PROC_MCHECK:
315 dec_kn20aa_mcheck(mces, vector, param, framep);
316 break;
317 default:
318 printf("KN20AA_MCHECK: unknown check vector 0x%lx\n", vector);
319 machine_check(mces, framep, vector, param);
320 break;
321 }
322 }
323