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sboot.c revision 1.6 
      1 /*	$NetBSD: sboot.c,v 1.6 2008/01/12 09:54:33 tsutsui Exp $	*/
      2 
      3 /*
      4  *
      5  * Copyright (c) 1995 Charles D. Cranor and Seth Widoff
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed by Charles D. Cranor
     19  *	and Seth Widoff.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 /*
     35  * main driver, plus machdep stuff
     36  */
     37 
     38 #include "sboot.h"
     39 
     40 void sboot(void);
     41 
     42 extern char bootprog_rev[];
     43 
     44 void
     45 sboot(void)
     46 {
     47 	char buf[128], *ebuf;
     48 
     49 	buf[0] = '0';
     50 	consinit();
     51 	printf("\nsboot: serial line bootstrap program (&end = %p) [%s]\n\n",
     52 	    &end, bootprog_rev);
     53 	if (reboot) {  /* global flag from AAstart.s */
     54 		reboot = 0;
     55 		printf("[rebooting...]\n");
     56 		buf[0] = 'b';
     57 		buf[1] = 0;
     58 		do_cmd(buf, &buf[1]);
     59 	}
     60 	for (;;) {
     61 		printf(">>> ");
     62 		ebuf = ngets(buf, sizeof(buf));
     63 		do_cmd(buf, ebuf);
     64 	}
     65 	/* not reached */
     66 }
     67 
     68 /*
     69  * exit to rom
     70  */
     71 
     72 void
     73 callrom(void)
     74 {
     75 
     76 	__asm("trap #15; .word 0x0063");
     77 }
     78 
     79 /*
     80  * do_cmd: do a command
     81  */
     82 
     83 void
     84 do_cmd(char *buf, char *ebuf)
     85 {
     86 
     87 	switch (*buf) {
     88 	case '\0':
     89 		return;
     90 	case 'a':
     91 		if (rev_arp()) {
     92 			printf("My ip address is: %d.%d.%d.%d\n",
     93 			    myip[0], myip[1], myip[2], myip[3]);
     94 			printf("Server ip address is: %d.%d.%d.%d\n",
     95 			    servip[0], servip[1], servip[2], servip[3]);
     96 		} else  {
     97 			printf("Failed.\n");
     98 		}
     99 		return;
    100 	case 'e':
    101 		printf("exiting to ROM\n");
    102 		callrom();
    103 		return;
    104 	case 'f':
    105 		if (do_get_file() == 1) {
    106 			printf("Download Failed\n");
    107 		} else {
    108 			printf("Download was a success!\n");
    109 		}
    110 		return;
    111 	case 'b':
    112 		le_init();
    113 		if (rev_arp()) {
    114 			printf("My ip address is: %d.%d.%d.%d\n",
    115 			    myip[0], myip[1], myip[2], myip[3]);
    116 			printf("Server ip address is: %d.%d.%d.%d\n",
    117 			    servip[0], servip[1], servip[2], servip[3]);
    118 		} else  {
    119 			printf("REVARP: Failed.\n");
    120 			return;
    121 		}
    122 		if (do_get_file() == 1) {
    123 			printf("Download Failed\n");
    124 			return;
    125 		} else {
    126 			printf("Download was a success!\n");
    127 		}
    128 		/*FALLTHROUGH*/
    129 	case 'g':
    130 		printf("Start @ 0x%x ... \n", LOAD_ADDR);
    131 		go(LOAD_ADDR, buf+1, ebuf);
    132 		return;
    133 	case 'h':
    134 	case '?':
    135 		printf("valid commands\n");
    136 		printf("a - send a RARP\n");
    137 		printf("b - boot the system\n");
    138 		printf("e - exit to ROM\n");
    139 		printf("f - ftp the boot file\n");
    140 		printf("g - execute the boot file\n");
    141 		printf("h - help\n");
    142 		printf("i - init LANCE enet chip\n");
    143 		return;
    144 	case 'i':
    145 		le_init();
    146 		return;
    147 	default:
    148 		printf("sboot: %s: Unknown command\n", buf);
    149 	}
    150 }
    151