sys/arch/sun68k/stand/libsa/promboot.c

   1 /*      $NetBSD: promboot.c,v 1.2.10.1 2005/01/24 08:35:03 skrll Exp $  */
   2
   3
   4 #include <sys/param.h>
   5 #include <sys/reboot.h>
   6
   7 #include <machine/mon.h>
   8
   9 #include "stand.h"
  10 #include "libsa.h"
  11
  12 #ifdef DEBUG
  13 int     debug = 0;
  14 #endif /* DEBUG */
  15 int     prom_boothow;
  16 char *  prom_bootfile;
  17 char    prom_bootdev[32];
  18
  19 /*
  20  * Get useful info from the PROM bootparams struct, i.e.:
  21  * arg[0] = sd(0,0,0)netbsd
  22  * arg[1] = -sa
  23  */
  24
  25 void
  26 prom_get_boot_info(void)
  27 {
  28         struct bootparam *bp;
  29         char    c, *src, *dst;
  30
  31 #ifdef  DEBUG
  32         printf("prom_get_boot_info\n");
  33 #endif
  34
  35         bp = *romVectorPtr->bootParam;
  36
  37         /* Get device and file names. */
  38         src = bp->argPtr[0];
  39         dst = prom_bootdev;
  40         *dst++ = *src++;
  41         *dst++ = *src++;
  42         if (*src == '(') {
  43                 while (*src) {
  44                         c = *src++;
  45                         *dst++ = c;
  46                         if (c == ')')
  47                                 break;
  48                 }
  49                 *dst = '\0';
  50         }
  51         prom_bootfile = src;
  52
  53         /* Get boothowto flags. */
  54         src = bp->argPtr[1];
  55         if (src && (*src == '-')) {
  56                 while (*src) {
  57                         switch (*src++) {
  58                         case 'a':
  59                                 prom_boothow |= RB_ASKNAME;
  60                                 break;
  61                         case 's':
  62                                 prom_boothow |= RB_SINGLE;
  63                                 break;
  64                         case 'd':
  65                                 prom_boothow |= RB_KDB;
  66 #ifdef DEBUG
  67                                 debug++;
  68 #endif /* DEBUG */
  69                                 break;
  70                         }
  71                 }
  72         }
  73
  74 #ifdef DEBUG
  75         if (debug) {
  76                 printf("Debug level %d - enter c to continue...", debug);
  77                 /* This will print "\nAbort at ...\n" */
  78                 breakpoint();
  79         }
  80 #endif /* DEBUG */
  81 }