text: /*	$NetBSD: uboot.c,v 1.3 1997/04/27 21:17:13 thorpej Exp $	*/
  
  /*-
   * Copyright (c) 1982, 1986, 1990, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the University of
   *	California, Berkeley and its contributors.
   * 4. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   *	@(#)boot.c	8.1 (Berkeley) 6/10/93
   */
  
  #include <sys/param.h>
  #include <sys/reboot.h>
  #include <a.out.h>
  
  #include <lib/libsa/stand.h>
  
  #include <hp300/stand/common/samachdep.h>
  
  /*
   * Boot program... bits in `howto' determine whether boot stops to
   * ask for system name.	 Boot device is derived from ROM provided
   * information.
   */
  
  char line[100];
  
  extern	u_int opendev;
  extern	char *lowram;
  extern	int noconsole;
  
  /*
   * XXX UFS accepts a /, NFS doesn't.
   */
  char *name;
  char *names[] = {
  	"netbsd",		"netbsd.gz",
  	"netbsd.bak",		"netbsd.bak.gz",
  	"netbsd.old",		"netbsd.old.gz",
  	"onetbsd",		"onetbsd.gz",
  	NULL
  };
  #define NUMNAMES	(sizeof(names) / sizeof(char *))
  
  static int bdev, badapt, bctlr, bunit, bpart;
  
  main()
  {
  	int currname = 0;
  
  	printf("\n");
  	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);  
  	printf(">> (%s, %s)\n", bootprog_maker, bootprog_date);
  	printf(">> HP 9000/%s SPU\n", getmachineid());
  	printf(">> Enter \"reset\" to reset system.\n");
  
  	bdev   = B_TYPE(bootdev);
  	badapt = B_ADAPTOR(bootdev);
  	bctlr  = B_CONTROLLER(bootdev);
  	bunit  = B_UNIT(bootdev);
  	bpart  = B_PARTITION(bootdev);
  
  	for (;;) {
  		name = names[currname++];
  		if (currname == NUMNAMES)
  			currname = 0;
  
  		if (!noconsole) {
  			howto = 0;
  			getbootdev(&howto);
  		} else
  			printf(": %s\n", name);
  
  		exec(name, lowram, howto);
  		printf("boot: %s\n", strerror(errno));
  	}
  }
  
  getbootdev(howto)
  	int *howto;
  {
  	char c, *ptr = line;
  
  	printf("Boot: [[[%s%d%c:]%s][-s][-a][-d]] :- ",
  	    devsw[bdev].dv_name, bctlr + (8 * badapt), 'a' + bpart, name);
  
  	if (tgets(line)) {
  		if (strcmp(line, "reset") == 0) {
  			call_req_reboot();      /* reset machine */
  			printf("panic: can't reboot, halting\n");
  			asm("stop #0x2700");
  		}
  		while (c = *ptr) {
  			while (c == ' ')
  				c = *++ptr;
  			if (!c)
  				return;
  			if (c == '-')
  				while ((c = *++ptr) && c != ' ')
  					switch (c) {
  					case 'a':
  						*howto |= RB_ASKNAME;
  						continue;
  					case 's':
  						*howto |= RB_SINGLE;
  						continue;
  					case 'd':
  						*howto |= RB_KDB;
  						continue;
  					case 'b':
  						*howto |= RB_HALT;
  						continue;
  					}
  			else {
  				name = ptr;
  				while ((c = *++ptr) && c != ' ');
  				if (c)
  					*ptr++ = 0;
  			}
  		}
  	} else
  		printf("\n");
  }
  