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sboot.c revision 1.1 
      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];
     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     do_cmd("b");
     50   }
     51   while (1) {
     52     printf(">>> ");
     53     ngets(buf, sizeof(buf));
     54     do_cmd(buf);
     55   }
     56   /* not reached */
     57 }
     58 
     59 /*
     60  * exit to rom
     61  */
     62 
     63 void callrom ()
     64 {
     65   asm("trap #15; .word 0x0063");
     66 }
     67 
     68 /*
     69  * do_cmd: do a command
     70  */
     71 
     72 void do_cmd(buf)
     73 
     74 char *buf;
     75 
     76 {
     77   switch (*buf) {
     78   case '\0':
     79     return;
     80   case 'a':
     81     if ( rev_arp() ) {
     82 	printf ("My ip address is: %d.%d.%d.%d\n", myip[0],
     83 		myip[1], myip[2], myip[3]);
     84 	printf ("Server ip address is: %d.%d.%d.%d\n", servip[0],
     85 		servip[1], servip[2], servip[3]);
     86     } else  {
     87 	printf ("Failed.\n");
     88     }
     89     return;
     90   case 'e':
     91     printf("exiting to ROM\n");
     92     callrom();
     93     return;
     94   case 'f':
     95     if (do_get_file() == 1) {
     96       printf("Download Failed\n");
     97     } else {
     98       printf("Download was a success!\n");
     99     }
    100     return;
    101   case 'b':
    102     le_init();
    103     if ( rev_arp() ) {
    104 	printf ("My ip address is: %d.%d.%d.%d\n", myip[0],
    105 		myip[1], myip[2], myip[3]);
    106 	printf ("Server ip address is: %d.%d.%d.%d\n", servip[0],
    107 		servip[1], servip[2], servip[3]);
    108     } else  {
    109 	printf ("REVARP: Failed.\n");
    110 	return;
    111     }
    112     if (do_get_file() == 1) {
    113         printf("Download Failed\n");
    114         return;
    115     } else {
    116         printf("Download was a success!\n");
    117     }
    118     go(buf);
    119     return;
    120   case 'h':
    121   case '?':
    122     printf("valid commands\n");
    123     printf("a - send a RARP\n");
    124     printf("b - boot the system\n");
    125     printf("e - exit to ROM\n");
    126     printf("f - ftp the boot file\n");
    127     printf("g - execute the boot file\n");
    128     printf("h - help\n");
    129     printf("i - init LANCE enet chip\n");
    130     return;
    131   case 'i':
    132     le_init();
    133     return;
    134   case 'g':
    135     go(buf);
    136     return;
    137   default:
    138     printf("sboot: %s: Unknown command\n", buf);
    139   }
    140 }
    141 
    142 go(buf)
    143 char *buf;
    144 
    145 {
    146   void (*entry)() =  (void (*)) LOAD_ADDR ;
    147   printf("Start @ 0x%x ... \n", entry);
    148   (*entry)(buf);
    149 }
    150 
    151