autoconf.c revision 1.108 
1/*	$NetBSD: autoconf.c,v 1.108 2011/08/04 17:48:50 rkujawa Exp $	*/
2
3/*
4 * Copyright (c) 1994 Christian E. Hopps
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Christian E. Hopps.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.108 2011/08/04 17:48:50 rkujawa Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/reboot.h>
39#include <sys/conf.h>
40#include <sys/buf.h>
41#include <sys/device.h>
42#include <sys/disklabel.h>
43#include <sys/disk.h>
44#include <sys/proc.h>
45#include <machine/cpu.h>
46#include <amiga/amiga/cfdev.h>
47#include <amiga/amiga/device.h>
48#include <amiga/amiga/custom.h>
49#ifdef DRACO
50#include <amiga/amiga/drcustom.h>
51#endif
52#include <dev/pci/pcireg.h>
53#include <dev/pci/pcivar.h>
54#include <dev/pci/pcidevs.h>
55
56static void findroot(void);
57void mbattach(device_t, device_t, void *);
58int mbprint(void *, const char *);
59int mbmatch(device_t, cfdata_t, void *);
60
61#include <sys/kernel.h>
62
63u_long boot_partition;
64
65int amiga_realconfig;
66
67/*
68 * called at boot time, configure all devices on system
69 */
70void
71cpu_configure(void)
72{
73	int s;
74#ifdef DEBUG_KERNEL_START
75	int i;
76#endif
77
78	/*
79	 * this is the real thing baby (i.e. not console init)
80	 */
81	amiga_realconfig = 1;
82#ifdef DRACO
83	if (is_draco()) {
84		*draco_intena &= ~DRIRQ_GLOBAL;
85	} else
86#endif
87	custom.intena = INTF_INTEN;
88	s = splhigh();
89
90	if (config_rootfound("mainbus", NULL) == NULL)
91		panic("no mainbus found");
92
93#ifdef DEBUG_KERNEL_START
94	printf("survived autoconf, going to enable interrupts\n");
95#endif
96
97#ifdef DRACO
98	if (is_draco()) {
99		*draco_intena |= DRIRQ_GLOBAL;
100		/* softints always enabled */
101	} else
102#endif
103	{
104		custom.intena = INTF_SETCLR | INTF_INTEN;
105
106		/* also enable hardware aided software interrupts */
107		custom.intena = INTF_SETCLR | INTF_SOFTINT;
108	}
109#ifdef DEBUG_KERNEL_START
110	for (i=splhigh(); i>=s ;i-=0x100) {
111		splx(i);
112		printf("%d...", (i>>8) & 7);
113	}
114	printf("survived interrupt enable\n");
115#else
116	splx(s);
117#endif
118#ifdef DEBUG_KERNEL_START
119	printf("survived configure...\n");
120#endif
121}
122
123void
124cpu_rootconf(void)
125{
126	findroot();
127#ifdef DEBUG_KERNEL_START
128	printf("survived findroot()\n");
129#endif
130	setroot(booted_device, booted_partition);
131#ifdef DEBUG_KERNEL_START
132	printf("survived setroot()\n");
133#endif
134}
135
136/*ARGSUSED*/
137int
138simple_devprint(void *auxp, const char *pnp)
139{
140	return(QUIET);
141}
142
143int
144matchname(const char *fp, const char *sp)
145{
146	int len;
147
148	len = strlen(fp);
149	if (strlen(sp) != len)
150		return(0);
151	if (memcmp(fp, sp, len) == 0)
152		return(1);
153	return(0);
154}
155
156/*
157 * use config_search_ia to find appropriate device, then call that device
158 * directly with NULL device variable storage.  A device can then
159 * always tell the difference betwean the real and console init
160 * by checking for NULL.
161 */
162int
163amiga_config_found(cfdata_t pcfp, device_t pdp, void *auxp, cfprint_t pfn)
164{
165	struct device temp;
166	cfdata_t cf;
167	const struct cfattach *ca;
168
169	if (amiga_realconfig)
170		return(config_found(pdp, auxp, pfn) != NULL);
171
172	if (pdp == NULL) {
173		memset(&temp, 0, sizeof temp);
174		pdp = &temp;
175	}
176
177	pdp->dv_cfdata = pcfp;
178	pdp->dv_cfdriver = config_cfdriver_lookup(pcfp->cf_name);
179	pdp->dv_unit = pcfp->cf_unit;
180
181	if ((cf = config_search_ia(NULL, pdp, NULL, auxp)) != NULL) {
182		ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname);
183		if (ca != NULL) {
184			(*ca->ca_attach)(pdp, NULL, auxp);
185			pdp->dv_cfdata = NULL;
186			return(1);
187		}
188	}
189	pdp->dv_cfdata = NULL;
190	return(0);
191}
192
193/*
194 * this function needs to get enough configured to do a console
195 * basically this means start attaching the grfxx's that support
196 * the console. Kinda hacky but it works.
197 */
198void
199config_console(void)
200{
201	cfdata_t cf;
202
203	config_init();
204
205	/*
206	 * we need mainbus' cfdata.
207	 */
208	cf = config_rootsearch(NULL, "mainbus", NULL);
209	if (cf == NULL) {
210		panic("no mainbus");
211	}
212	/*
213	 * delay clock calibration.
214	 */
215	amiga_config_found(cf, NULL, __UNCONST("clock"), NULL);
216
217	/*
218	 * internal grf.
219	 */
220#ifdef DRACO
221	if (!(is_draco()))
222#endif
223		amiga_config_found(cf, NULL, __UNCONST("grfcc"), NULL);
224
225	/*
226	 * zbus knows when its not for real and will
227	 * only configure the appropriate hardware
228	 */
229	amiga_config_found(cf, NULL, __UNCONST("zbus"), NULL);
230}
231
232/*
233 * mainbus driver
234 */
235CFATTACH_DECL_NEW(mainbus, 0,
236    mbmatch, mbattach, NULL, NULL);
237
238int
239mbmatch(device_t pdp, cfdata_t cfp, void *auxp)
240{
241#if 0	/*
242	 * XXX is this right? but we need to be found twice
243	 * (early console init hack)
244	 */
245	static int mainbus_matched = 0;
246
247	/* Allow only one instance. */
248	if (mainbus_matched)
249		return (0);
250
251	mainbus_matched = 1;
252#endif
253	return (1);
254}
255
256/*
257 * "find" all the things that should be there.
258 */
259void
260mbattach(device_t pdp, device_t dp, void *auxp)
261{
262	printf("\n");
263	config_found(dp, __UNCONST("clock"), simple_devprint);
264	if (is_a3000() || is_a4000()) {
265		config_found(dp, __UNCONST("a34kbbc"), simple_devprint);
266	} else
267#ifdef DRACO
268	if (!is_draco())
269#endif
270	{
271		config_found(dp, __UNCONST("a2kbbc"), simple_devprint);
272	}
273#ifdef DRACO
274	if (is_draco()) {
275		config_found(dp, __UNCONST("drbbc"), simple_devprint);
276		config_found(dp, __UNCONST("kbd"), simple_devprint);
277		config_found(dp, __UNCONST("drsc"), simple_devprint);
278		config_found(dp, __UNCONST("drsupio"), simple_devprint);
279	} else
280#endif
281	{
282		config_found(dp, __UNCONST("ser"), simple_devprint);
283		config_found(dp, __UNCONST("par"), simple_devprint);
284		config_found(dp, __UNCONST("kbd"), simple_devprint);
285		config_found(dp, __UNCONST("ms"), simple_devprint);
286		config_found(dp, __UNCONST("grfcc"), simple_devprint);
287		config_found(dp, __UNCONST("amidisplaycc"), simple_devprint);
288		config_found(dp, __UNCONST("fdc"), simple_devprint);
289	}
290	if (is_a4000() || is_a1200() || is_a600())
291		config_found(dp, __UNCONST("wdc"), simple_devprint);
292	if (is_a4000())			/* Try to configure A4000T SCSI */
293		config_found(dp, __UNCONST("afsc"), simple_devprint);
294	if (is_a3000())
295		config_found(dp, __UNCONST("ahsc"), simple_devprint);
296	if (is_a600() || is_a1200())
297		config_found(dp, __UNCONST("pccard"), simple_devprint);
298#ifdef DRACO
299	if (!is_draco())
300#endif
301		config_found(dp, __UNCONST("aucc"), simple_devprint);
302
303	config_found(dp, __UNCONST("zbus"), simple_devprint);
304}
305
306int
307mbprint(void *auxp, const char *pnp)
308{
309	if (pnp)
310		aprint_normal("%s at %s", (char *)auxp, pnp);
311	return(UNCONF);
312}
313
314/*
315 * The system will assign the "booted device" indicator (and thus
316 * rootdev if rootspec is wildcarded) to the first partition 'a'
317 * in preference of boot.  However, it does walk unit backwards
318 * to remain compatible with the old Amiga method of picking the
319 * last root found.
320 */
321#include <sys/fcntl.h>		/* XXXX and all that uses it */
322#include <sys/proc.h>		/* XXXX and all that uses it */
323
324#include "fd.h"
325#include "sd.h"
326#include "cd.h"
327#include "wd.h"
328
329#if NFD > 0
330extern  struct cfdriver fd_cd;
331extern	const struct bdevsw fd_bdevsw;
332#endif
333#if NSD > 0
334extern  struct cfdriver sd_cd;
335extern	const struct bdevsw sd_bdevsw;
336#endif
337#if NCD > 0
338extern  struct cfdriver cd_cd;
339extern	const struct bdevsw cd_bdevsw;
340#endif
341#if NWD > 0
342extern  struct cfdriver wd_cd;
343extern	const struct bdevsw wd_bdevsw;
344#endif
345
346struct cfdriver *genericconf[] = {
347#if NFD > 0
348	&fd_cd,
349#endif
350#if NSD > 0
351	&sd_cd,
352#endif
353#if NWD > 0
354	&wd_cd,
355#endif
356#if NCD > 0
357	&cd_cd,
358#endif
359	NULL,
360};
361
362void
363findroot(void)
364{
365	struct disk *dkp;
366	struct partition *pp;
367	device_t *devs;
368	int i, maj, unit;
369	const struct bdevsw *bdp;
370
371#if NSD > 0
372	/*
373	 * If we have the boot partition offset (boot_partition), try
374	 * to locate the device corresponding to that partition.
375	 */
376#ifdef DEBUG_KERNEL_START
377	printf("Boot partition offset is %ld\n", boot_partition);
378#endif
379	if (boot_partition != 0) {
380
381		for (unit = 0; unit < sd_cd.cd_ndevs; ++unit) {
382#ifdef DEBUG_KERNEL_START
383			printf("probing for sd%d\n", unit);
384#endif
385			if (device_lookup(&sd_cd,unit) == NULL)
386				continue;
387
388			/*
389			 * Find the disk corresponding to the current
390			 * device.
391			 */
392			devs = (device_t *)sd_cd.cd_devs;
393			if ((dkp = disk_find(device_xname(device_lookup(&sd_cd, unit)))) == NULL)
394				continue;
395
396			if (dkp->dk_driver == NULL ||
397			    dkp->dk_driver->d_strategy == NULL)
398				continue;
399			bdp = &sd_bdevsw;
400			maj = bdevsw_lookup_major(bdp);
401			if ((*bdp->d_open)(MAKEDISKDEV(maj, unit, RAW_PART),
402			    FREAD | FNONBLOCK, 0, curlwp))
403				continue;
404			(*bdp->d_close)(MAKEDISKDEV(maj, unit, RAW_PART),
405			    FREAD | FNONBLOCK, 0, curlwp);
406			pp = &dkp->dk_label->d_partitions[0];
407			for (i = 0; i < dkp->dk_label->d_npartitions;
408			    i++, pp++) {
409#ifdef DEBUG_KERNEL_START
410				printf("sd%d%c type %d offset %d size %d\n",
411					unit, i+'a', pp->p_fstype,
412					pp->p_offset, pp->p_size);
413#endif
414				if (pp->p_size == 0 ||
415				    (pp->p_fstype != FS_BSDFFS &&
416				    pp->p_fstype != FS_SWAP))
417					continue;
418				if (pp->p_offset == boot_partition) {
419					if (booted_device == NULL) {
420						booted_device = devs[unit];
421						booted_partition = i;
422					} else
423						printf("Ambiguous boot device\n");
424				}
425			}
426		}
427	}
428	if (booted_device != NULL)
429		return;		/* we found the boot device */
430#endif
431
432	for (i = 0; genericconf[i] != NULL; i++) {
433		for (unit = genericconf[i]->cd_ndevs - 1; unit >= 0; unit--) {
434			if (genericconf[i]->cd_devs[unit] == NULL)
435				continue;
436
437			/*
438			 * Find the disk structure corresponding to the
439			 * current device.
440			 */
441			devs = (device_t *)genericconf[i]->cd_devs;
442			if ((dkp = disk_find(device_xname(devs[unit]))) == NULL)
443				continue;
444
445			if (dkp->dk_driver == NULL ||
446			    dkp->dk_driver->d_strategy == NULL)
447				continue;
448
449			bdp = NULL;
450#if NFD > 0
451			if (fd_bdevsw.d_strategy == dkp->dk_driver->d_strategy)
452				bdp = &fd_bdevsw;
453#endif
454#if NSD > 0
455			if (sd_bdevsw.d_strategy == dkp->dk_driver->d_strategy)
456				bdp = &sd_bdevsw;
457#endif
458#if NWD > 0
459			if (wd_bdevsw.d_strategy == dkp->dk_driver->d_strategy)
460				bdp = &wd_bdevsw;
461#endif
462#if NCD > 0
463			if (cd_bdevsw.d_strategy == dkp->dk_driver->d_strategy)
464				bdp = &cd_bdevsw;
465#endif
466#ifdef DIAGNOSTIC
467			if (bdp == NULL)
468				panic("findroot: impossible");
469#endif
470			maj = bdevsw_lookup_major(bdp);
471
472			/* Open disk; forces read of disklabel. */
473			if ((*bdp->d_open)(MAKEDISKDEV(maj,
474			    unit, 0), FREAD|FNONBLOCK, 0, &lwp0))
475				continue;
476			(void)(*bdp->d_close)(MAKEDISKDEV(maj,
477			    unit, 0), FREAD|FNONBLOCK, 0, &lwp0);
478
479			pp = &dkp->dk_label->d_partitions[0];
480			if (pp->p_size != 0 && pp->p_fstype == FS_BSDFFS) {
481				booted_device = devs[unit];
482				booted_partition = 0;
483				return;
484			}
485		}
486	}
487}
488
489/*
490 * Try to determine, of this machine is an A3000, which has a builtin
491 * realtime clock and scsi controller, so that this hardware is only
492 * included as "configured" if this IS an A3000
493 */
494
495int a3000_flag = 1;		/* patchable */
496#ifdef A4000
497int a4000_flag = 1;		/* patchable - default to A4000 */
498#else
499int a4000_flag = 0;		/* patchable */
500#endif
501
502int
503is_a3000()
504{
505	/* this is a dirty kludge.. but how do you do this RIGHT ? :-) */
506	extern long boot_fphystart;
507	short sc;
508
509	if ((machineid >> 16) == 3000)
510		return (1);			/* It's an A3000 */
511	if (machineid >> 16)
512		return (0);			/* It's not an A3000 */
513	/* Machine type is unknown, so try to guess it */
514	/* where is fastram on the A4000 ?? */
515	/* if fastram is below 0x07000000, assume it's not an A3000 */
516	if (boot_fphystart < 0x07000000)
517		return(0);
518	/*
519	 * OK, fastram starts at or above 0x07000000, check specific
520	 * machines
521	 */
522	for (sc = 0; sc < ncfdev; sc++) {
523		switch (cfdev[sc].rom.manid) {
524		case 2026:		/* Progressive Peripherals, Inc */
525			switch (cfdev[sc].rom.prodid) {
526			case 0:		/* PPI Mercury - A3000 */
527			case 1:		/* PP&S A3000 '040 */
528				return(1);
529			case 150:	/* PPI Zeus - it's an A2000 */
530			case 105:	/* PP&S A2000 '040 */
531			case 187:	/* PP&S A500 '040 */
532				return(0);
533			}
534			break;
535
536		case 2112:			/* IVS */
537			switch (cfdev[sc].rom.prodid) {
538			case 242:
539				return(0);	/* A2000 accelerator? */
540			}
541			break;
542		}
543	}
544	return (a3000_flag);		/* XXX let flag tell now */
545}
546
547int
548is_a4000()
549{
550	if ((machineid >> 16) == 4000)
551		return (1);		/* It's an A4000 */
552	if ((machineid >> 16) == 1200)
553		return (0);		/* It's an A1200, so not A4000 */
554#ifdef DRACO
555	if (is_draco())
556		return (0);
557#endif
558	/* Do I need this any more? */
559	if ((custom.deniseid & 0xff) == 0xf8)
560		return (1);
561#ifdef DEBUG
562	if (a4000_flag)
563		printf("Denise ID = %04x\n", (unsigned short)custom.deniseid);
564#endif
565	if (machineid >> 16)
566		return (0);		/* It's not an A4000 */
567	return (a4000_flag);		/* Machine type not set */
568}
569
570int
571is_a1200()
572{
573	if ((machineid >> 16) == 1200)
574		return (1);		/* It's an A1200 */
575	return (0);			/* Machine type not set */
576}
577
578int
579is_a600()
580{
581	if ((machineid >> 16) == 600)
582		return (1);		/* It's an A600 */
583	return (0);			/* Machine type not set */
584}
585
586
587void
588device_register(device_t dev, void *aux)
589{
590	prop_dictionary_t dict, parent_dict;
591	struct pci_attach_args *pa = aux;
592
593	if (device_parent(dev) && device_is_a(device_parent(dev), "pci")) {
594
595		dict = device_properties(dev);
596
597		if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY) {
598
599			/* Handle CVPPC/BVPPC card. */
600			if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TI)
601			    && (PCI_PRODUCT(pa->pa_id) ==
602			    PCI_PRODUCT_TI_TVP4020) ) {
603
604				/*
605				 * PCI bridge knows the properties,
606				 * PCI device doesn't - let's copy
607				 * them.
608				 */
609				parent_dict = device_properties(
610				    device_parent(device_parent(dev)));
611
612				prop_dictionary_set(dict, "width",
613				    prop_dictionary_get(parent_dict, "width"));
614
615				prop_dictionary_set(dict, "height",
616				    prop_dictionary_get(parent_dict, "height"));
617
618				prop_dictionary_set(dict, "depth",
619				    prop_dictionary_get(parent_dict, "depth"));
620
621				prop_dictionary_set(dict, "linebytes",
622				    prop_dictionary_get(parent_dict,
623				    "linebytes"));
624
625				prop_dictionary_set(dict, "address",
626				    prop_dictionary_get(parent_dict,
627				    "address"));
628#if (NGENFB > 0)
629				prop_dictionary_set(dict, "virtual_address",
630				    prop_dictionary_get(parent_dict,
631				    "virtual_address"));
632#endif
633			}
634		}
635	}
636}
637
638