/*      $NetBSD: sboot.c,v 1.7 2011/02/02 17:53:41 chuck Exp $  */

/*
 * Copyright (c) 1995 Charles D. Cranor and Seth Widoff
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/*
 * main driver, plus machdep stuff
 */

#include "sboot.h"

void sboot(void);

extern char bootprog_rev[];

void
sboot(void) 
{
        char buf[128], *ebuf;

        buf[0] = '0';
        consinit();
        printf("\nsboot: serial line bootstrap program (&end = %p) [%s]\n\n",
            &end, bootprog_rev);
        if (reboot) {  /* global flag from AAstart.s */
                reboot = 0;
                printf("[rebooting...]\n");
                buf[0] = 'b';
                buf[1] = 0;
                do_cmd(buf, &buf[1]);
        }
        for (;;) {
                printf(">>> ");
                ebuf = ngets(buf, sizeof(buf));
                do_cmd(buf, ebuf);
        }
        /* not reached */
}

/*
 * exit to rom
 */

void
callrom(void) 
{

        __asm("trap #15; .word 0x0063");
}

/*
 * do_cmd: do a command
 */

void
do_cmd(char *buf, char *ebuf)
{

        switch (*buf) {
        case '\0':
                return;
        case 'a':
                if (rev_arp()) {
                        printf("My ip address is: %d.%d.%d.%d\n",
                            myip[0], myip[1], myip[2], myip[3]);
                        printf("Server ip address is: %d.%d.%d.%d\n",
                            servip[0], servip[1], servip[2], servip[3]);
                } else  {
                        printf("Failed.\n");
                } 
                return;
        case 'e':
                printf("exiting to ROM\n");
                callrom();
                return; 
        case 'f':
                if (do_get_file() == 1) {
                        printf("Download Failed\n");
                } else {
                        printf("Download was a success!\n");
                }
                return;
        case 'b':
                le_init();
                if (rev_arp()) {
                        printf("My ip address is: %d.%d.%d.%d\n",
                            myip[0], myip[1], myip[2], myip[3]);
                        printf("Server ip address is: %d.%d.%d.%d\n",
                            servip[0], servip[1], servip[2], servip[3]);
                } else  {
                        printf("REVARP: Failed.\n");
                        return;
                }
                if (do_get_file() == 1) {
                        printf("Download Failed\n");
                        return;
                } else {
                        printf("Download was a success!\n");
                }
                /*FALLTHROUGH*/
        case 'g':
                printf("Start @ 0x%x ... \n", LOAD_ADDR);
                go(LOAD_ADDR, buf+1, ebuf);
                return;
        case 'h':
        case '?':
                printf("valid commands\n");
                printf("a - send a RARP\n");
                printf("b - boot the system\n");
                printf("e - exit to ROM\n");
                printf("f - ftp the boot file\n");
                printf("g - execute the boot file\n");
                printf("h - help\n");
                printf("i - init LANCE enet chip\n");
                return;
        case 'i':
                le_init();
                return;
        default:
                printf("sboot: %s: Unknown command\n", buf);
        }
}