Home | History | Annotate | Line # | Download | only in sboot
sboot.c revision 1.2 
      1 /*
      2  *
      3  * Copyright (c) 1995 Charles D. Cranor and Seth Widoff
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Charles D. Cranor
     17  *	and Seth Widoff.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 /*
     33  * main driver, plus machdep stuff
     34  */
     35 
     36 #include "sboot.h"
     37 
     38 void sboot()
     39 
     40 {
     41   char * mesg;
     42   char buf[128], *ebuf;
     43   buf[0] = '0';
     44   consinit();
     45   printf("\nsboot: serial line bootstrap program (&end = %x)\n\n", &end);
     46   if (reboot) {  /* global flag from AAstart.s */
     47     reboot = 0;
     48     printf("[rebooting...]\n");
     49     buf[0] = 'b';
     50     buf[1] = 0;
     51     do_cmd(buf, &buf[1]);
     52   }
     53   while (1) {
     54     printf(">>> ");
     55     ebuf = ngets(buf, sizeof(buf));
     56     do_cmd(buf, ebuf);
     57   }
     58   /* not reached */
     59 }
     60 
     61 /*
     62  * exit to rom
     63  */
     64 
     65 void callrom ()
     66 {
     67   asm("trap #15; .word 0x0063");
     68 }
     69 
     70 /*
     71  * do_cmd: do a command
     72  */
     73 
     74 void do_cmd(buf, ebuf)
     75 
     76 char *buf, *ebuf;
     77 
     78 {
     79   switch (*buf) {
     80   case '\0':
     81     return;
     82   case 'a':
     83     if ( rev_arp() ) {
     84 	printf ("My ip address is: %d.%d.%d.%d\n", myip[0],
     85 		myip[1], myip[2], myip[3]);
     86 	printf ("Server ip address is: %d.%d.%d.%d\n", servip[0],
     87 		servip[1], servip[2], servip[3]);
     88     } else  {
     89 	printf ("Failed.\n");
     90     }
     91     return;
     92   case 'e':
     93     printf("exiting to ROM\n");
     94     callrom();
     95     return;
     96   case 'f':
     97     if (do_get_file() == 1) {
     98       printf("Download Failed\n");
     99     } else {
    100       printf("Download was a success!\n");
    101     }
    102     return;
    103   case 'b':
    104     le_init();
    105     if ( rev_arp() ) {
    106 	printf ("My ip address is: %d.%d.%d.%d\n", myip[0],
    107 		myip[1], myip[2], myip[3]);
    108 	printf ("Server ip address is: %d.%d.%d.%d\n", servip[0],
    109 		servip[1], servip[2], servip[3]);
    110     } else  {
    111 	printf ("REVARP: Failed.\n");
    112 	return;
    113     }
    114     if (do_get_file() == 1) {
    115         printf("Download Failed\n");
    116         return;
    117     } else {
    118         printf("Download was a success!\n");
    119     }
    120     /*FALLTHROUGH*/
    121   case 'g':
    122     printf("Start @ 0x%x ... \n", LOAD_ADDR);
    123     go(LOAD_ADDR, buf+1, ebuf);
    124     return;
    125   case 'h':
    126   case '?':
    127     printf("valid commands\n");
    128     printf("a - send a RARP\n");
    129     printf("b - boot the system\n");
    130     printf("e - exit to ROM\n");
    131     printf("f - ftp the boot file\n");
    132     printf("g - execute the boot file\n");
    133     printf("h - help\n");
    134     printf("i - init LANCE enet chip\n");
    135     return;
    136   case 'i':
    137     le_init();
    138     return;
    139   default:
    140     printf("sboot: %s: Unknown command\n", buf);
    141   }
    142 }
    143