sys/arch/hp300/stand/uboot/uboot.c

   1 /*      $NetBSD: uboot.c,v 1.14 2005/12/24 22:45:35 perry 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 #include <lib/libkern/libkern.h>
  39
  40 #include <hp300/stand/common/samachdep.h>
  41
  42 /*
  43  * Boot program... bits in `howto' determine whether boot stops to
  44  * ask for system name.  Boot device is derived from ROM provided
  45  * information.
  46  */
  47
  48 char line[100];
  49
  50 extern  u_int opendev;
  51 extern  char *lowram;
  52 extern  int noconsole;
  53
  54 /*
  55  * XXX UFS accepts a /, NFS doesn't.
  56  */
  57 char *name;
  58 char *names[] = {
  59         "netbsd",               "netbsd.gz",
  60         "netbsd.bak",           "netbsd.bak.gz",
  61         "netbsd.old",           "netbsd.old.gz",
  62         "onetbsd",              "onetbsd.gz",
  63         NULL
  64 };
  65 #define NUMNAMES        (sizeof(names) / sizeof(char *))
  66
  67 static int bdev, badapt, bctlr, bunit, bpart;
  68
  69 void main(void);
  70 void getbootdev(int *);
  71
  72 void
  73 main(void)
  74 {
  75         int currname = 0;
  76
  77         printf("\n");
  78         printf(">> %s, Revision %s (from NetBSD %s)\n",
  79             bootprog_name, bootprog_rev, bootprog_kernrev);
  80         printf(">> HP 9000/%s SPU\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                 exec_hp300(name, (u_long)lowram, howto);
 100                 printf("boot: %s\n", strerror(errno));
 101         }
 102 }
 103
 104 void
 105 getbootdev(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 }