1/* $NetBSD: dec_eb64plus.c,v 1.39 2011/06/14 15:34:22 matt 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_eb64plus.c,v 1.39 2011/06/14 15:34:22 matt Exp $");
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/device.h>
42#include <sys/termios.h>
43#include <sys/conf.h>
44#include <dev/cons.h>
45
46#include <uvm/uvm_extern.h>
47
48#include <machine/rpb.h>
49#include <machine/alpha.h>
50#include <machine/autoconf.h>
51#include <machine/cpuconf.h>
52
53#include <dev/ic/comreg.h>
54#include <dev/ic/comvar.h>
55
56#include <dev/isa/isareg.h>
57#include <dev/isa/isavar.h>
58#include <dev/ic/i8042reg.h>
59#include <dev/ic/pckbcvar.h>
60#include <dev/pci/pcireg.h>
61#include <dev/pci/pcivar.h>
62
63#include <alpha/pci/apecsreg.h>
64#include <alpha/pci/apecsvar.h>
65
66#include <dev/scsipi/scsi_all.h>
67#include <dev/scsipi/scsipi_all.h>
68#include <dev/scsipi/scsiconf.h>
69
70#include "pckbd.h"
71
72#ifndef CONSPEED
73#define CONSPEED TTYDEF_SPEED
74#endif
75static int comcnrate = CONSPEED;
76
77void dec_eb64plus_init(void);
78static void dec_eb64plus_cons_init(void);
79static void dec_eb64plus_device_register(device_t, void *);
80
81#ifdef KGDB
82#include <machine/db_machdep.h>
83
84static const char *kgdb_devlist[] = {
85	"com",
86	NULL,
87};
88#endif /* KGDB */
89
90const struct alpha_variation_table dec_eb64plus_variations[] = {
91	{ 0, "DEC EB64+" },
92	{ 0, NULL },
93};
94
95void
96dec_eb64plus_init(void)
97{
98	uint64_t variation;
99
100	platform.family = "EB64+";
101
102	if ((platform.model = alpha_dsr_sysname()) == NULL) {
103		variation = hwrpb->rpb_variation & SV_ST_MASK;
104		if ((platform.model = alpha_variation_name(variation,
105		    dec_eb64plus_variations)) == NULL)
106			platform.model = alpha_unknown_sysname();
107	}
108
109	platform.iobus = "apecs";
110	platform.cons_init = dec_eb64plus_cons_init;
111	platform.device_register = dec_eb64plus_device_register;
112
113	/*
114	 * EB64+ systems can have 512K, 1M, or 2M secondary
115	 * caches.  Default to middle-of-the-road.
116	 *
117	 * XXX Need to dynamically size it!
118	 */
119	uvmexp.ncolors = atop(1 * 1024 * 1024);
120}
121
122static void
123dec_eb64plus_cons_init(void)
124{
125	struct ctb *ctb;
126	struct apecs_config *acp;
127	extern struct apecs_config apecs_configuration;
128
129	acp = &apecs_configuration;
130	apecs_init(acp, 0);
131
132	ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
133
134	switch (ctb->ctb_term_type) {
135	case CTB_PRINTERPORT:
136		/* serial console ... */
137		/* XXX */
138		{
139			/*
140			 * Delay to allow PROM putchars to complete.
141			 * FIFO depth * character time,
142			 * character time = (1000000 / (defaultrate / 10))
143			 */
144			DELAY(160000000 / comcnrate);
145
146			if(comcnattach(&acp->ac_iot, 0x3f8, comcnrate,
147			    COM_FREQ, COM_TYPE_NORMAL,
148			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
149				panic("can't init serial console");
150
151			break;
152		}
153
154	case CTB_GRAPHICS:
155#if NPCKBD > 0
156		/* display console ... */
157		/* XXX */
158		(void) pckbc_cnattach(&acp->ac_iot, IO_KBD, KBCMDP,
159		    PCKBC_KBD_SLOT);
160
161		if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
162		    CTB_TURBOSLOT_TYPE_ISA)
163			isa_display_console(&acp->ac_iot, &acp->ac_memt);
164		else
165			pci_display_console(&acp->ac_iot, &acp->ac_memt,
166			    &acp->ac_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
167			    CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
168#else
169		panic("not configured to use display && keyboard console");
170#endif
171		break;
172
173	default:
174		printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
175		printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
176
177		panic("consinit: unknown console type %ld",
178		    ctb->ctb_term_type);
179	}
180#ifdef KGDB
181	/* Attach the KGDB device. */
182	alpha_kgdb_init(kgdb_devlist, &acp->ac_iot);
183#endif /* KGDB */
184}
185
186static void
187dec_eb64plus_device_register(device_t dev, void *aux)
188{
189	static int found, initted, diskboot, netboot;
190	static device_t pcidev, ctrlrdev;
191	struct bootdev_data *b = bootdev_data;
192	device_t parent = device_parent(dev);
193
194	if (found)
195		return;
196
197	if (!initted) {
198		diskboot = (strcasecmp(b->protocol, "SCSI") == 0);
199		netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
200		    (strcasecmp(b->protocol, "MOP") == 0);
201#if 0
202		printf("diskboot = %d, netboot = %d\n", diskboot, netboot);
203#endif
204		initted =1;
205	}
206
207	if (pcidev == NULL) {
208		if (!device_is_a(dev, "pci"))
209			return;
210		else {
211			struct pcibus_attach_args *pba = aux;
212
213			if ((b->slot / 1000) != pba->pba_bus)
214				return;
215
216			pcidev = dev;
217#if 0
218			printf("\npcidev = %s\n", device_xname(dev));
219#endif
220			return;
221		}
222	}
223
224	if (ctrlrdev == NULL) {
225		if (parent != pcidev)
226			return;
227		else {
228			struct pci_attach_args *pa = aux;
229			int slot;
230
231			slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
232			    pa->pa_device;
233			if (b->slot != slot)
234				return;
235
236			if (netboot) {
237				booted_device = dev;
238#if 0
239				printf("\nbooted_device = %s\n", device_xname(dev));
240#endif
241				found = 1;
242			} else {
243				ctrlrdev = dev;
244#if 0
245				printf("\nctrlrdev = %s\n", device_xname(dev));
246#endif
247			}
248			return;
249		}
250	}
251
252	if (!diskboot)
253		return;
254
255	if (device_is_a(dev, "sd") ||
256	    device_is_a(dev, "st") ||
257	    device_is_a(dev, "cd")) {
258		struct scsipibus_attach_args *sa = aux;
259		struct scsipi_periph *periph = sa->sa_periph;
260		int unit;
261
262		if (device_parent(parent) != ctrlrdev)
263			return;
264
265		unit = periph->periph_target * 100 + periph->periph_lun;
266		if (b->unit != unit)
267			return;
268		if (b->channel != periph->periph_channel->chan_channel)
269			return;
270
271		/* we've found it! */
272		booted_device = dev;
273#if 0
274		printf("\nbooted_device = %s\n", device_xname(dev));
275#endif
276		found = 1;
277	}
278}
279