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      1 /*	$NetBSD: sboot.c,v 1.7 2011/02/02 17:53:41 chuck Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Charles D. Cranor and Seth Widoff
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 /*
     28  * main driver, plus machdep stuff
     29  */
     30 
     31 #include "sboot.h"
     32 
     33 void sboot(void);
     34 
     35 extern char bootprog_rev[];
     36 
     37 void
     38 sboot(void)
     39 {
     40 	char buf[128], *ebuf;
     41 
     42 	buf[0] = '0';
     43 	consinit();
     44 	printf("\nsboot: serial line bootstrap program (&end = %p) [%s]\n\n",
     45 	    &end, bootprog_rev);
     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 	for (;;) {
     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
     66 callrom(void)
     67 {
     68 
     69 	__asm("trap #15; .word 0x0063");
     70 }
     71 
     72 /*
     73  * do_cmd: do a command
     74  */
     75 
     76 void
     77 do_cmd(char *buf, char *ebuf)
     78 {
     79 
     80 	switch (*buf) {
     81 	case '\0':
     82 		return;
     83 	case 'a':
     84 		if (rev_arp()) {
     85 			printf("My ip address is: %d.%d.%d.%d\n",
     86 			    myip[0], myip[1], myip[2], myip[3]);
     87 			printf("Server ip address is: %d.%d.%d.%d\n",
     88 			    servip[0], servip[1], servip[2], servip[3]);
     89 		} else  {
     90 			printf("Failed.\n");
     91 		}
     92 		return;
     93 	case 'e':
     94 		printf("exiting to ROM\n");
     95 		callrom();
     96 		return;
     97 	case 'f':
     98 		if (do_get_file() == 1) {
     99 			printf("Download Failed\n");
    100 		} else {
    101 			printf("Download was a success!\n");
    102 		}
    103 		return;
    104 	case 'b':
    105 		le_init();
    106 		if (rev_arp()) {
    107 			printf("My ip address is: %d.%d.%d.%d\n",
    108 			    myip[0], myip[1], myip[2], myip[3]);
    109 			printf("Server ip address is: %d.%d.%d.%d\n",
    110 			    servip[0], servip[1], servip[2], servip[3]);
    111 		} else  {
    112 			printf("REVARP: Failed.\n");
    113 			return;
    114 		}
    115 		if (do_get_file() == 1) {
    116 			printf("Download Failed\n");
    117 			return;
    118 		} else {
    119 			printf("Download was a success!\n");
    120 		}
    121 		/*FALLTHROUGH*/
    122 	case 'g':
    123 		printf("Start @ 0x%x ... \n", LOAD_ADDR);
    124 		go(LOAD_ADDR, buf+1, ebuf);
    125 		return;
    126 	case 'h':
    127 	case '?':
    128 		printf("valid commands\n");
    129 		printf("a - send a RARP\n");
    130 		printf("b - boot the system\n");
    131 		printf("e - exit to ROM\n");
    132 		printf("f - ftp the boot file\n");
    133 		printf("g - execute the boot file\n");
    134 		printf("h - help\n");
    135 		printf("i - init LANCE enet chip\n");
    136 		return;
    137 	case 'i':
    138 		le_init();
    139 		return;
    140 	default:
    141 		printf("sboot: %s: Unknown command\n", buf);
    142 	}
    143 }
    144