dec_6600.c revision 1.2 
1/* $NetBSD: dec_6600.c,v 1.2 1999/12/03 22:48:22 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#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
31
32__KERNEL_RCSID(0, "$NetBSD: dec_6600.c,v 1.2 1999/12/03 22:48:22 thorpej 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/pckbcvar.h>
51#include <dev/pci/pcireg.h>
52#include <dev/pci/pcivar.h>
53
54#include <alpha/pci/tsreg.h>
55#include <alpha/pci/tsvar.h>
56
57#include <dev/scsipi/scsi_all.h>
58#include <dev/scsipi/scsipi_all.h>
59#include <dev/scsipi/scsiconf.h>
60
61#include "pckbd.h"
62
63#ifndef CONSPEED
64#define CONSPEED TTYDEF_SPEED
65#endif
66
67#define	DR_VERBOSE(f) while (0)
68
69static int comcnrate __attribute__((unused)) = CONSPEED;
70
71void dec_6600_init __P((void));
72static void dec_6600_cons_init __P((void));
73static void dec_6600_device_register __P((struct device *, void *));
74
75void
76dec_6600_init()
77{
78
79	platform.family = "6600";
80
81	if ((platform.model = alpha_dsr_sysname()) == NULL) {
82		/* XXX Don't know the system variations, yet. */
83		platform.model = alpha_unknown_sysname();
84	}
85
86	platform.iobus = "tsc";
87	platform.cons_init = dec_6600_cons_init;
88	platform.device_register = dec_6600_device_register;
89	STQP(TS_C_DIM0) = 0UL;
90	STQP(TS_C_DIM1) = 0UL;
91}
92
93static void
94dec_6600_cons_init()
95{
96	struct ctb *ctb;
97	u_int64_t ctbslot;
98	struct tsp_config *tsp;
99
100	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
101	ctbslot = ctb->ctb_turboslot;
102
103	tsp = tsp_init(0, 0);
104
105	switch (ctb->ctb_term_type) {
106	case 2:
107		/* serial console ... */
108		assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
109		/* XXX */
110		{
111			/*
112			 * Delay to allow PROM putchars to complete.
113			 * FIFO depth * character time,
114			 * character time = (1000000 / (defaultrate / 10))
115			 */
116			DELAY(160000000 / comcnrate);
117
118			if(comcnattach(&tsp->pc_iot, 0x3f8, comcnrate,
119			    COM_FREQ,
120			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
121				panic("can't init serial console");
122
123			break;
124		}
125
126	case 3:
127#if NPCKBD > 0
128		/* display console ... */
129		/* XXX */
130		(void) pckbc_cnattach(&tsp->pc_iot, IO_KBD, PCKBC_KBD_SLOT);
131
132		if (CTB_TURBOSLOT_TYPE(ctbslot) ==
133		    CTB_TURBOSLOT_TYPE_ISA)
134			isa_display_console(&tsp->pc_iot, &tsp->pc_memt);
135		else {
136			/* The display PCI might be different */
137			tsp = tsp_init(0, CTB_TURBOSLOT_HOSE(ctbslot));
138			pci_display_console(&tsp->pc_iot, &tsp->pc_memt,
139			    &tsp->pc_pc, CTB_TURBOSLOT_BUS(ctbslot),
140			    CTB_TURBOSLOT_SLOT(ctbslot), 0);
141		}
142#else
143		panic("not configured to use display && keyboard console");
144#endif
145		break;
146
147	default:
148		printf("ctb_term_type = 0x%lx ctb_turboslot = 0x%lx"
149		    " hose = %ld\n", ctb->ctb_term_type, ctbslot,
150		    CTB_TURBOSLOT_HOSE(ctbslot));
151
152		panic("consinit: unknown console type %ld\n",
153		    ctb->ctb_term_type);
154	}
155}
156
157static void
158dec_6600_device_register(dev, aux)
159	struct device *dev;
160	void *aux;
161{
162	static int found, initted, scsiboot, ideboot, netboot;
163	static struct device *primarydev, *pcidev, *scsipidev;
164	struct bootdev_data *b = bootdev_data;
165	struct device *parent = dev->dv_parent;
166	struct cfdata *cf = dev->dv_cfdata;
167	struct cfdriver *cd = cf->cf_driver;
168
169	if (found)
170		return;
171
172	if (!initted) {
173		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
174		netboot = (strcmp(b->protocol, "BOOTP") == 0);
175		/*
176		 * Add an extra check to boot from ide drives:
177		 * Newer SRM firmware use the protocol identifier IDE,
178		 * older SRM firmware use the protocol identifier SCSI.
179		 */
180		ideboot = (strcmp(b->protocol, "IDE") == 0);
181		DR_VERBOSE(printf("scsiboot = %d, ideboot = %d, netboot = %d\n",
182		    scsiboot, ideboot, netboot));
183		initted = 1;
184	}
185	if (primarydev == NULL) {
186		if (strcmp(cd->cd_name, "tsp"))
187			return;
188		else {
189			struct tsp_attach_args *tsp = aux;
190
191			if (b->bus != tsp->tsp_slot)
192				return;
193			primarydev = dev;
194			DR_VERBOSE(printf("\nprimarydev = %s\n",
195			    primarydev->dv_xname));
196			return;
197		}
198	}
199	if (pcidev == NULL) {
200		if (parent != primarydev)
201			return;
202		if (strcmp(cd->cd_name, "pci"))
203			return;
204		else {
205			struct pcibus_attach_args *pba = aux;
206
207			if ((b->slot / 1000) != pba->pba_bus)
208				return;
209
210			pcidev = dev;
211			DR_VERBOSE(printf("\npcidev = %s\n", pcidev->dv_xname));
212			return;
213		}
214	}
215	if ((ideboot || scsiboot) && scsipidev == NULL) {
216		if (parent != pcidev)
217			return;
218		else {
219			struct pci_attach_args *pa = aux;
220
221			if (b->slot % 1000 / 100 != pa->pa_function)
222				return;
223			if (b->slot % 100 != pa->pa_device)
224				return;
225
226			scsipidev = dev;
227			DR_VERBOSE(printf("\nscsipidev = %s\n",
228			    scsipidev->dv_xname));
229			return;
230		}
231	}
232	if ((scsiboot || ideboot) &&
233	    (!strcmp(cd->cd_name, "sd") ||
234	     !strcmp(cd->cd_name, "st") ||
235	     !strcmp(cd->cd_name, "cd"))) {
236		struct scsipibus_attach_args *sa = aux;
237
238		if (parent->dv_parent != scsipidev)
239			return;
240
241		if (b->unit / 100 != sa->sa_sc_link->scsipi_scsi.target)
242			return;
243
244		/* XXX LUN! */
245
246		switch (b->boot_dev_type) {
247		case 0:
248			if (strcmp(cd->cd_name, "sd") &&
249			    strcmp(cd->cd_name, "cd"))
250				return;
251			break;
252		case 1:
253			if (strcmp(cd->cd_name, "st"))
254				return;
255			break;
256		default:
257			return;
258		}
259
260		/* we've found it! */
261		booted_device = dev;
262		DR_VERBOSE(printf("\nbooted_device = %s\n",
263		    booted_device->dv_xname));
264		found = 1;
265	}
266
267	/*
268	 * Support to boot from IDE drives.
269	 * Should work with all SRM firmware versions, but is at the
270	 * moment limited to hard disks. Support for IDE CD ROM is
271	 * included above, under the theory that it will always be
272	 * via the pci ide controller.
273	 */
274	if ((ideboot || scsiboot) && !strcmp(cd->cd_name, "wd")) {
275		if ((strncmp("pciide", parent->dv_xname, 6) != 0)) {
276			return;
277		} else {
278			if (parent != scsipidev)
279				return;
280		}
281
282		/* we've found it! */
283		booted_device = dev;
284		DR_VERBOSE(printf("\nbooted_device = %s\n",
285		    booted_device->dv_xname));
286		found = 1;
287	}
288	if (netboot) {
289		if (parent != pcidev)
290			return;
291		else {
292			struct pci_attach_args *pa = aux;
293
294			if (b->slot % 1000 / 100 != pa->pa_function)
295				return;
296			if ((b->slot % 100) != pa->pa_device)
297				return;
298
299			booted_device = dev;
300			DR_VERBOSE(printf("\nbooted_device = %s\n",
301			    booted_device->dv_xname));
302			found = 1;
303			return;
304		}
305	}
306}
307