uboot.c revision 1.4 
1/*	$NetBSD: uboot.c,v 1.4 2000/09/24 12:32:34 jdolecek Exp $	*/
2
3/*-
4 * Copyright (c) 1982, 1986, 1990, 1993
5 *	The Regents of the University of California.  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 the University of
18 *	California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *	@(#)boot.c	8.1 (Berkeley) 6/10/93
36 */
37
38#include <sys/param.h>
39#include <sys/reboot.h>
40#include <sys/boot_flag.h>
41#include <a.out.h>
42
43#include <lib/libsa/stand.h>
44
45#include <hp300/stand/common/samachdep.h>
46
47/*
48 * Boot program... bits in `howto' determine whether boot stops to
49 * ask for system name.	 Boot device is derived from ROM provided
50 * information.
51 */
52
53char line[100];
54
55extern	u_int opendev;
56extern	char *lowram;
57extern	int noconsole;
58
59/*
60 * XXX UFS accepts a /, NFS doesn't.
61 */
62char *name;
63char *names[] = {
64	"netbsd",		"netbsd.gz",
65	"netbsd.bak",		"netbsd.bak.gz",
66	"netbsd.old",		"netbsd.old.gz",
67	"onetbsd",		"onetbsd.gz",
68	NULL
69};
70#define NUMNAMES	(sizeof(names) / sizeof(char *))
71
72static int bdev, badapt, bctlr, bunit, bpart;
73
74main()
75{
76	int currname = 0;
77
78	printf("\n");
79	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
80	printf(">> (%s, %s)\n", bootprog_maker, bootprog_date);
81	printf(">> HP 9000/%s SPU\n", getmachineid());
82	printf(">> Enter \"reset\" to reset system.\n");
83
84	bdev   = B_TYPE(bootdev);
85	badapt = B_ADAPTOR(bootdev);
86	bctlr  = B_CONTROLLER(bootdev);
87	bunit  = B_UNIT(bootdev);
88	bpart  = B_PARTITION(bootdev);
89
90	for (;;) {
91		name = names[currname++];
92		if (currname == NUMNAMES)
93			currname = 0;
94
95		if (!noconsole) {
96			howto = 0;
97			getbootdev(&howto);
98		} else
99			printf(": %s\n", name);
100
101		exec(name, lowram, howto);
102		printf("boot: %s\n", strerror(errno));
103	}
104}
105
106getbootdev(howto)
107	int *howto;
108{
109	char c, *ptr = line;
110
111	printf("Boot: [[[%s%d%c:]%s][-s][-a][-d][-v][-q]] :- ",
112	    devsw[bdev].dv_name, bctlr + (8 * badapt), 'a' + bpart, name);
113
114	if (tgets(line)) {
115		if (strcmp(line, "reset") == 0) {
116			call_req_reboot();      /* reset machine */
117			printf("panic: can't reboot, halting\n");
118			asm("stop #0x2700");
119		}
120		while (c = *ptr) {
121			while (c == ' ')
122				c = *++ptr;
123			if (!c)
124				return;
125			if (c == '-')
126				while ((c = *++ptr) && c != ' ')
127					BOOT_FLAG(c, *howto);
128			else {
129				name = ptr;
130				while ((c = *++ptr) && c != ' ');
131				if (c)
132					*ptr++ = 0;
133			}
134		}
135	} else
136		printf("\n");
137}
138