dec_6600.c revision 1.7 
1/* $NetBSD: dec_6600.c,v 1.7 2000/06/20 03:48:54 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#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
31
32__KERNEL_RCSID(0, "$NetBSD: dec_6600.c,v 1.7 2000/06/20 03:48:54 matt Exp $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/device.h>
37#include <sys/termios.h>
38#include <dev/cons.h>
39
40#include <machine/rpb.h>
41#include <machine/autoconf.h>
42#include <machine/conf.h>
43#include <machine/bus.h>
44
45#include <dev/ic/comreg.h>
46#include <dev/ic/comvar.h>
47
48#include <dev/isa/isareg.h>
49#include <dev/isa/isavar.h>
50#include <dev/ic/i8042reg.h>
51#include <dev/ic/pckbcvar.h>
52#include <dev/pci/pcireg.h>
53#include <dev/pci/pcivar.h>
54
55#include <alpha/pci/tsreg.h>
56#include <alpha/pci/tsvar.h>
57
58#include <dev/scsipi/scsi_all.h>
59#include <dev/scsipi/scsipi_all.h>
60#include <dev/scsipi/scsiconf.h>
61#include <dev/ata/atavar.h>
62
63#include "pckbd.h"
64
65#ifndef CONSPEED
66#define CONSPEED TTYDEF_SPEED
67#endif
68
69#define	DR_VERBOSE(f) while (0)
70
71static int comcnrate __attribute__((unused)) = CONSPEED;
72
73void dec_6600_init __P((void));
74static void dec_6600_cons_init __P((void));
75static void dec_6600_device_register __P((struct device *, void *));
76
77void
78dec_6600_init()
79{
80
81	platform.family = "6600";
82
83	if ((platform.model = alpha_dsr_sysname()) == NULL) {
84		/* XXX Don't know the system variations, yet. */
85		platform.model = alpha_unknown_sysname();
86	}
87
88	platform.iobus = "tsc";
89	platform.cons_init = dec_6600_cons_init;
90	platform.device_register = dec_6600_device_register;
91	STQP(TS_C_DIM0) = 0UL;
92	STQP(TS_C_DIM1) = 0UL;
93}
94
95static void
96dec_6600_cons_init()
97{
98	struct ctb *ctb;
99	u_int64_t ctbslot;
100	struct tsp_config *tsp;
101
102	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
103	ctbslot = ctb->ctb_turboslot;
104
105	tsp = tsp_init(0, 0);
106
107	switch (ctb->ctb_term_type) {
108	case 2:
109		/* serial console ... */
110		assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
111		/* XXX */
112		{
113			/*
114			 * Delay to allow PROM putchars to complete.
115			 * FIFO depth * character time,
116			 * character time = (1000000 / (defaultrate / 10))
117			 */
118			DELAY(160000000 / comcnrate);
119
120			if(comcnattach(&tsp->pc_iot, 0x3f8, comcnrate,
121			    COM_FREQ,
122			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
123				panic("can't init serial console");
124
125			break;
126		}
127
128	case 3:
129#if NPCKBD > 0
130		/* display console ... */
131		/* XXX */
132		(void) pckbc_cnattach(&tsp->pc_iot, IO_KBD, KBCMDP,
133		    PCKBC_KBD_SLOT);
134
135		if (CTB_TURBOSLOT_TYPE(ctbslot) ==
136		    CTB_TURBOSLOT_TYPE_ISA)
137			isa_display_console(&tsp->pc_iot, &tsp->pc_memt);
138		else {
139			/* The display PCI might be different */
140			tsp = tsp_init(0, CTB_TURBOSLOT_HOSE(ctbslot));
141			pci_display_console(&tsp->pc_iot, &tsp->pc_memt,
142			    &tsp->pc_pc, CTB_TURBOSLOT_BUS(ctbslot),
143			    CTB_TURBOSLOT_SLOT(ctbslot), 0);
144		}
145#else
146		panic("not configured to use display && keyboard console");
147#endif
148		break;
149
150	default:
151		printf("ctb_term_type = 0x%lx ctb_turboslot = 0x%lx"
152		    " hose = %ld\n", ctb->ctb_term_type, ctbslot,
153		    CTB_TURBOSLOT_HOSE(ctbslot));
154
155		panic("consinit: unknown console type %ld\n",
156		    ctb->ctb_term_type);
157	}
158}
159
160static void
161dec_6600_device_register(dev, aux)
162	struct device *dev;
163	void *aux;
164{
165	static int found, initted, scsiboot, ideboot, netboot;
166	static struct device *primarydev, *pcidev, *scsipidev;
167	struct bootdev_data *b = bootdev_data;
168	struct device *parent = dev->dv_parent;
169	struct cfdata *cf = dev->dv_cfdata;
170	struct cfdriver *cd = cf->cf_driver;
171
172	if (found)
173		return;
174
175	if (!initted) {
176		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
177		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
178		    (strcmp(b->protocol, "MOP") == 0);
179		/*
180		 * Add an extra check to boot from ide drives:
181		 * Newer SRM firmware use the protocol identifier IDE,
182		 * older SRM firmware use the protocol identifier SCSI.
183		 */
184		ideboot = (strcmp(b->protocol, "IDE") == 0);
185		DR_VERBOSE(printf("scsiboot = %d, ideboot = %d, netboot = %d\n",
186		    scsiboot, ideboot, netboot));
187		initted = 1;
188	}
189	if (primarydev == NULL) {
190		if (strcmp(cd->cd_name, "tsp"))
191			return;
192		else {
193			struct tsp_attach_args *tsp = aux;
194
195			if (b->bus != tsp->tsp_slot)
196				return;
197			primarydev = dev;
198			DR_VERBOSE(printf("\nprimarydev = %s\n",
199			    primarydev->dv_xname));
200			return;
201		}
202	}
203	if (pcidev == NULL) {
204		if (parent != primarydev)
205			return;
206		if (strcmp(cd->cd_name, "pci"))
207			return;
208		else {
209			struct pcibus_attach_args *pba = aux;
210
211			if ((b->slot / 1000) != pba->pba_bus)
212				return;
213
214			pcidev = dev;
215			DR_VERBOSE(printf("\npcidev = %s\n",
216			    pcidev->dv_xname));
217			return;
218		}
219	}
220	if ((ideboot || scsiboot) && (scsipidev == NULL)) {
221		if (parent != pcidev)
222			return;
223		else {
224			struct pci_attach_args *pa = aux;
225
226			if (b->slot % 1000 / 100 != pa->pa_function)
227				return;
228			if (b->slot % 100 != pa->pa_device)
229				return;
230
231			scsipidev = dev;
232			DR_VERBOSE(printf("\nscsipidev = %s\n",
233			    scsipidev->dv_xname));
234			return;
235		}
236	}
237	if ((ideboot || scsiboot) &&
238	    (!strcmp(cd->cd_name, "sd") ||
239	     !strcmp(cd->cd_name, "st") ||
240	     !strcmp(cd->cd_name, "cd"))) {
241		struct scsipibus_attach_args *sa = aux;
242
243		if (parent->dv_parent != scsipidev)
244			return;
245
246		if (sa->sa_sc_link->type == BUS_SCSI
247		    && b->unit / 100 != sa->sa_sc_link->scsipi_scsi.target)
248			return;
249		if (sa->sa_sc_link->type == BUS_ATAPI
250		    && b->unit / 100 != sa->sa_sc_link->scsipi_atapi.drive)
251			return;
252
253		/* XXX LUN! */
254
255		switch (b->boot_dev_type) {
256		case 0:
257			if (strcmp(cd->cd_name, "sd") &&
258			    strcmp(cd->cd_name, "cd"))
259				return;
260			break;
261		case 1:
262			if (strcmp(cd->cd_name, "st"))
263				return;
264			break;
265		default:
266			return;
267		}
268
269		/* we've found it! */
270		booted_device = dev;
271		DR_VERBOSE(printf("\nbooted_device = %s\n",
272		    booted_device->dv_xname));
273		found = 1;
274	}
275
276	/*
277	 * Support to boot from IDE drives.
278	 */
279	if ((ideboot || scsiboot) && !strcmp(cd->cd_name, "wd")) {
280		struct ata_atapi_attach *aa_link = aux;
281		if ((strncmp("pciide", parent->dv_xname, 6) != 0)) {
282			return;
283		} else {
284			if (parent != scsipidev)
285				return;
286		}
287		DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
288		    aa_link->aa_drv_data->drive, aa_link->aa_channel));
289		DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
290		    b->unit, b->channel));
291		if (b->unit != aa_link->aa_drv_data->drive ||
292		    b->channel != aa_link->aa_channel)
293			return;
294
295		/* we've found it! */
296		booted_device = dev;
297		DR_VERBOSE(printf("booted_device = %s\n",
298		    booted_device->dv_xname));
299		found = 1;
300	}
301	if (netboot) {
302		if (parent != pcidev)
303			return;
304		else {
305			struct pci_attach_args *pa = aux;
306
307			if (b->slot % 1000 / 100 != pa->pa_function)
308				return;
309			if ((b->slot % 100) != pa->pa_device)
310				return;
311
312			booted_device = dev;
313			DR_VERBOSE(printf("\nbooted_device = %s\n",
314			    booted_device->dv_xname));
315			found = 1;
316			return;
317		}
318	}
319}
320