/*	Copyright 2001, 2002 Georges Menie (www.menie.org)	This file is part of Tftpnaive.    Tftpnaive is free software; you can redistribute it and/or modify    it under the terms of the GNU Lesser General Public License as published by    the Free Software Foundation; either version 2 of the License, or    (at your option) any later version.    Tftpnaive is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    GNU Lesser General Public License for more details.    You should have received a copy of the GNU Lesser General Public License    along with Tftpnaive; if not, write to the Free Software    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#include "tftpnaive.h"#include "68vz328.h"#include "io.h"#include "net.h"#include "baselib.h"#include "timer.h"#include "cs89x.h"#include "bootstd.h"int errno;_bsc1 (unsigned char *, gethwaddr, int, a)int netUp (void){	int error;	timerInit ();	memcpy (netif.IEEEIA, gethwaddr (0), sizeof netif.IEEEIA);	netif.send = cs89xSend;	/* disable IRQ */	orl (1 << IRQ_NUM, IMR);	orb (0x01, PFSEL);			/* output /sleep */	orw (0x0101, PFDIR);		/* not sleeping */	andb (~0x02, PFSEL);		/* input irq5 */	andw (~0x0202, PFDIR);		/* irq5 fcn on */	writew (0x8000, CSGBB);		/* 0x04000000 */	writew (0x01e1, CSB);		/* read/write, 128k, 12ws, FLASH enable, 16 bits bus */	if (cs89xReset ()) {		printf ("Network interface reset failed\n");		return 1;	}	/* set interrupt service routine: IRQ5 -> level 5 */	writel ((int) cs89xISR, ((readb (IVR) & 0xf8) + 5) << 2);	/* IRQ 5 setup */	orw (0x0080, ICR);			/* +ve pol irq */	/* network chip initialization	 * if there is a error other than a cable problem	 * the function returns to the caller.	 * if there is a cable problem, loop and try again after 1s	 */	error = cs89xSetup ();	while (error) {		if (error != ERR_LINK) {			printf ("Network interface init failed: code %d\n", error);			return 1;		}		printf ("No network, cable problem ?\n");		usleep (1000000);		error = cs89xStatus ();	}	/* enable IRQ */	orl (1 << IRQ_NUM, ISR);	andl (~(1 << IRQ_NUM), IMR);	return 0;}int netDown (void){	/* disable IRQ */	orl (1 << IRQ_NUM, IMR);	orl (1 << IRQ_NUM, ISR);	if (cs89xReset ()) {		printf ("Network interface reset failed\n");		return 1;	}	/* erase IP */	netif.ip = 0;	return 0;}int main (void){	timerInit ();	if (netUp ())		return 1;	while (1) {		netRequestIP ();		if (netBoot () == 0)			break;	}	netDown ();	if (tftp_req && tftp_req->sts && tftp_req->strtf) {		jump ((void *) tftp_req->strt);	}	return 0;}