1/* $NetBSD: api_up1000.c,v 1.28 2011/07/01 19:22:35 dyoung 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: api_up1000.c,v 1.28 2011/07/01 19:22:35 dyoung 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 <machine/alpha.h>
47#include <machine/rpb.h>
48#include <machine/autoconf.h>
49#include <machine/cpuconf.h>
50#include <sys/bus.h>
51
52#include <dev/ic/comreg.h>
53#include <dev/ic/comvar.h>
54
55#include <dev/isa/isareg.h>
56#include <dev/isa/isavar.h>
57#include <dev/ic/i8042reg.h>
58#include <dev/ic/pckbcvar.h>
59#include <dev/pci/pcireg.h>
60#include <dev/pci/pcivar.h>
61
62#include <alpha/pci/irongatereg.h>
63#include <alpha/pci/irongatevar.h>
64
65#include <dev/scsipi/scsi_all.h>
66#include <dev/scsipi/scsipi_all.h>
67#include <dev/scsipi/scsiconf.h>
68#include <dev/ata/atavar.h>
69
70#include "pckbd.h"
71
72#ifndef CONSPEED
73#define CONSPEED TTYDEF_SPEED
74#endif
75static int comcnrate = CONSPEED;
76
77#define	DPRINTF(x)	if (bootdev_debug) printf x
78
79void api_up1000_init(void);
80static void api_up1000_cons_init(void);
81static void api_up1000_device_register(device_t, void *);
82
83#ifdef KGDB
84#include <machine/db_machdep.h>
85
86static const char *kgdb_devlist[] = {
87	"com",
88	NULL,
89};
90#endif /* KGDB */
91
92void
93api_up1000_init(void)
94{
95
96	platform.family = "Alpha Processor, Inc. UP1000";
97
98	if ((platform.model = alpha_dsr_sysname()) == NULL) {
99		/* XXX Don't know the system variations, yet. */
100		platform.model = alpha_unknown_sysname();
101	}
102
103	platform.iobus = "irongate";
104	platform.cons_init = api_up1000_cons_init;
105	platform.device_register = api_up1000_device_register;
106}
107
108static void
109api_up1000_cons_init(void)
110{
111	struct ctb *ctb;
112	struct irongate_config *icp;
113	extern struct irongate_config irongate_configuration;
114
115	icp = &irongate_configuration;
116	irongate_init(icp, 0);
117
118	ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
119
120	switch (ctb->ctb_term_type) {
121	case CTB_PRINTERPORT:
122		/* serial console ... */
123		/* XXX */
124		{
125			/*
126			 * Delay to allow PROM putchars to complete.
127			 * FIFO depth * character time,
128			 * character time = (1000000 / (defaultrate / 10))
129			 */
130			DELAY(160000000 / comcnrate);
131
132			if(comcnattach(&icp->ic_iot, 0x3f8, comcnrate,
133			    COM_FREQ, COM_TYPE_NORMAL,
134			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
135				panic("can't init serial console");
136
137			break;
138		}
139
140	case CTB_GRAPHICS:
141#if NPCKBD > 0
142		/* display console ... */
143		/* XXX */
144		(void) pckbc_cnattach(&icp->ic_iot, IO_KBD, KBCMDP,
145		    PCKBC_KBD_SLOT);
146
147		if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
148		    CTB_TURBOSLOT_TYPE_ISA)
149			isa_display_console(&icp->ic_iot, &icp->ic_memt);
150		else
151			pci_display_console(&icp->ic_iot, &icp->ic_memt,
152			    &icp->ic_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
153			    CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
154#else
155		panic("not configured to use display && keyboard console");
156#endif
157		break;
158
159	default:
160		printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
161		printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
162
163		panic("consinit: unknown console type %ld",
164		    ctb->ctb_term_type);
165	}
166#ifdef KGDB
167	/* Attach the KGDB device. */
168	alpha_kgdb_init(kgdb_devlist, &icp->ic_iot);
169#endif /* KGDB */
170}
171
172static void
173api_up1000_device_register(device_t dev, void *aux)
174{
175	static int found, initted, diskboot, netboot;
176	static device_t pcidev, ctrlrdev;
177	struct bootdev_data *b = bootdev_data;
178	device_t parent = device_parent(dev);
179
180	if (found)
181		return;
182
183	if (!initted) {
184		diskboot = (strcasecmp(b->protocol, "SCSI") == 0) ||
185		    (strcasecmp(b->protocol, "IDE") == 0);
186		netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
187		    (strcasecmp(b->protocol, "MOP") == 0);
188		DPRINTF(("\ndiskboot = %d, netboot = %d\n", diskboot, netboot));
189		initted = 1;
190	}
191
192	if (pcidev == NULL) {
193		if (!device_is_a(dev, "pci"))
194			return;
195		else {
196			struct pcibus_attach_args *pba = aux;
197
198			if ((b->slot / 1000) != pba->pba_bus)
199				return;
200
201			pcidev = dev;
202			DPRINTF(("\npcidev = %s\n", device_xname(dev)));
203			return;
204		}
205	}
206
207	if (ctrlrdev == NULL) {
208		if (parent != pcidev)
209			return;
210		else {
211			struct pci_attach_args *pa = aux;
212			int slot;
213
214			slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
215			    pa->pa_device;
216			if (b->slot != slot)
217				return;
218
219			if (netboot) {
220				booted_device = dev;
221				DPRINTF(("\nbooted_device = %s\n",
222				    device_xname(dev)));
223				found = 1;
224			} else {
225				ctrlrdev = dev;
226				DPRINTF(("\nctrlrdev = %s\n", device_xname(dev)));
227			}
228			return;
229		}
230	}
231
232	if (!diskboot)
233		return;
234
235	if (device_is_a(dev, "sd") ||
236	    device_is_a(dev, "st") ||
237	    device_is_a(dev, "cd")) {
238		struct scsipibus_attach_args *sa = aux;
239		struct scsipi_periph *periph = sa->sa_periph;
240		int unit;
241
242		if (device_parent(parent) != ctrlrdev)
243			return;
244
245		unit = periph->periph_target * 100 + periph->periph_lun;
246		if (b->unit != unit)
247			return;
248		if (b->channel != periph->periph_channel->chan_channel)
249			return;
250
251		/* we've found it! */
252		booted_device = dev;
253		DPRINTF(("\nbooted_device = %s\n", device_xname(dev)));
254		found = 1;
255	}
256
257	/*
258	 * Support to boot from IDE drives.
259	 */
260	if (device_is_a(dev, "wd")) {
261		struct ata_device *adev = aux;
262
263		if (!device_is_a(parent, "atabus"))
264			return;
265		if (device_parent(parent) != ctrlrdev)
266			return;
267
268		DPRINTF(("\natapi info: drive %d, channel %d\n",
269		    adev->adev_drv_data->drive, adev->adev_channel));
270		DPRINTF(("bootdev info: unit: %d, channel: %d\n",
271		    b->unit, b->channel));
272		if (b->unit != adev->adev_drv_data->drive ||
273		    b->channel != adev->adev_channel)
274			return;
275
276		/* we've found it! */
277		booted_device = dev;
278		DPRINTF(("booted_device = %s\n", device_xname(dev)));
279		found = 1;
280	}
281}
282