uboot.c revision 1.2 
1/*	$NetBSD: uboot.c,v 1.2 1997/02/04 19:40:07 thorpej 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 <a.out.h>
41
42#include <lib/libsa/stand.h>
43
44#include <hp300/stand/common/samachdep.h>
45
46/*
47 * Boot program... bits in `howto' determine whether boot stops to
48 * ask for system name.	 Boot device is derived from ROM provided
49 * information.
50 */
51
52char line[100];
53
54extern	u_int opendev;
55extern	char *lowram;
56extern	int noconsole;
57
58/*
59 * XXX UFS accepts a /, NFS doesn't.
60 */
61char *name;
62char *names[] = {
63	"netbsd",		"netbsd.gz",
64	"netbsd.bak",		"netbsd.bak.gz",
65	"netbsd.old",		"netbsd.old.gz",
66	"onetbsd",		"onetbsd.gz",
67	NULL
68};
69#define NUMNAMES	(sizeof(names) / sizeof(char *))
70
71static int bdev, badapt, bctlr, bunit, bpart;
72
73main()
74{
75	int currname = 0;
76
77	printf("\n");
78	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
79	printf(">> (%s, %s)\n", bootprog_maker, bootprog_date);
80	printf(">> HP 9000/%s CPU\n", getmachineid());
81	printf(">> Enter \"reset\" to reset system.\n");
82
83	bdev   = B_TYPE(bootdev);
84	badapt = B_ADAPTOR(bootdev);
85	bctlr  = B_CONTROLLER(bootdev);
86	bunit  = B_UNIT(bootdev);
87	bpart  = B_PARTITION(bootdev);
88
89	for (;;) {
90		name = names[currname++];
91		if (currname == NUMNAMES)
92			currname = 0;
93
94		if (!noconsole) {
95			howto = 0;
96			getbootdev(&howto);
97		} else
98			printf(": %s\n", name);
99
100		exec(name, lowram, howto);
101		printf("boot: %s\n", strerror(errno));
102	}
103}
104
105getbootdev(howto)
106	int *howto;
107{
108	char c, *ptr = line;
109
110	printf("Boot: [[[%s%d%c:]%s][-s][-a][-d]] :- ",
111	    devsw[bdev].dv_name, bctlr + (8 * badapt), 'a' + bpart, name);
112
113	if (tgets(line)) {
114		if (strcmp(line, "reset") == 0) {
115			call_req_reboot();      /* reset machine */
116			printf("panic: can't reboot, halting\n");
117			asm("stop #0x2700");
118		}
119		while (c = *ptr) {
120			while (c == ' ')
121				c = *++ptr;
122			if (!c)
123				return;
124			if (c == '-')
125				while ((c = *++ptr) && c != ' ')
126					switch (c) {
127					case 'a':
128						*howto |= RB_ASKNAME;
129						continue;
130					case 's':
131						*howto |= RB_SINGLE;
132						continue;
133					case 'd':
134						*howto |= RB_KDB;
135						continue;
136					case 'b':
137						*howto |= RB_HALT;
138						continue;
139					}
140			else {
141				name = ptr;
142				while ((c = *++ptr) && c != ' ');
143				if (c)
144					*ptr++ = 0;
145			}
146		}
147	} else
148		printf("\n");
149}
150