uboot.c revision 1.10 
1/*	$NetBSD: uboot.c,v 1.10 2003/08/07 16:27:44 agc 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. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)boot.c	8.1 (Berkeley) 6/10/93
32 */
33
34#include <sys/param.h>
35#include <sys/boot_flag.h>
36
37#include <lib/libsa/stand.h>
38
39#include <hp300/stand/common/samachdep.h>
40
41/*
42 * Boot program... bits in `howto' determine whether boot stops to
43 * ask for system name.	 Boot device is derived from ROM provided
44 * information.
45 */
46
47char line[100];
48
49extern	u_int opendev;
50extern	char *lowram;
51extern	int noconsole;
52
53/*
54 * XXX UFS accepts a /, NFS doesn't.
55 */
56char *name;
57char *names[] = {
58	"netbsd",		"netbsd.gz",
59	"netbsd.bak",		"netbsd.bak.gz",
60	"netbsd.old",		"netbsd.old.gz",
61	"onetbsd",		"onetbsd.gz",
62	NULL
63};
64#define NUMNAMES	(sizeof(names) / sizeof(char *))
65
66static int bdev, badapt, bctlr, bunit, bpart;
67
68void main __P((void));
69void getbootdev __P((int *));
70
71void
72main()
73{
74	int currname = 0;
75
76	printf("\n");
77	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
78	printf(">> (%s, %s)\n", bootprog_maker, bootprog_date);
79	printf(">> HP 9000/%s SPU\n", getmachineid());
80	printf(">> Enter \"reset\" to reset system.\n");
81
82	bdev   = B_TYPE(bootdev);
83	badapt = B_ADAPTOR(bootdev);
84	bctlr  = B_CONTROLLER(bootdev);
85	bunit  = B_UNIT(bootdev);
86	bpart  = B_PARTITION(bootdev);
87
88	for (;;) {
89		name = names[currname++];
90		if (currname == NUMNAMES)
91			currname = 0;
92
93		if (!noconsole) {
94			howto = 0;
95			getbootdev(&howto);
96		} else
97			printf(": %s\n", name);
98		exec_hp300(name, (u_long)lowram, howto);
99		printf("boot: %s\n", strerror(errno));
100	}
101}
102
103void
104getbootdev(howto)
105	int *howto;
106{
107	char c, *ptr = line;
108
109	printf("Boot: [[[%s%d%c:]%s][-a][-c][-d][-s][-v][-q]] :- ",
110	    devsw[bdev].dv_name, bctlr + (8 * badapt), 'a' + bpart, name);
111
112	if (tgets(line)) {
113		if (strcmp(line, "reset") == 0) {
114			call_req_reboot();      /* reset machine */
115			printf("panic: can't reboot, halting\n");
116			asm("stop #0x2700");
117		}
118		while ((c = *ptr) != '\0') {
119			while (c == ' ')
120				c = *++ptr;
121			if (!c)
122				return;
123			if (c == '-')
124				while ((c = *++ptr) && c != ' ')
125					BOOT_FLAG(c, *howto);
126			else {
127				name = ptr;
128				while ((c = *++ptr) && c != ' ');
129				if (c)
130					*ptr++ = 0;
131			}
132		}
133	} else
134		printf("\n");
135}
136