/*
 *  Copyright (C) 2005-2007  Anders Gavare.  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.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 *   
 *
 *  $Id: dev_ps2_ether.c,v 1.8 2007/06/15 19:57:33 debug Exp $
 *  
 *  COMMENT: PlayStation 2 ethernet (smap and emac3)
 *
 *  TODO
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cpu.h"
#include "device.h"
#include "machine.h"
#include "memory.h"
#include "misc.h"


#define debug fatal

struct ps2_ether_data {
	int	dummy;
};


DEVICE_ACCESS(ps2_ether)
{
	/*  struct ps2_ether_data *d = extra;  */
	uint64_t idata = 0, odata = 0;

	if (writeflag == MEM_WRITE)
		idata = memory_readmax64(cpu, data, len);

	switch (relative_addr) {

	case 0x105c:
		/*  TODO: make these register accesses nicer  */
		break;

	case 0x105e:
		odata = 0x8000;	/*  STACR_OC  */
		break;

	default:
		if (writeflag==MEM_READ) {
			debug("[ ps2_ether: read from addr 0x%x: 0x%llx ]\n",
			    (int)relative_addr, (long long)odata);
		} else {
			debug("[ ps2_ether: write to addr 0x%x: 0x%llx ]\n",
			    (int)relative_addr, (long long)idata);
		}
	}

	if (writeflag == MEM_READ)
		memory_writemax64(cpu, data, len, odata);

	return 1;
}


DEVINIT(ps2_ether)
{
	struct ps2_ether_data *d;

	CHECK_ALLOCATION(d = malloc(sizeof(struct ps2_ether_data)));
	memset(d, 0, sizeof(struct ps2_ether_data));

	memory_device_register(devinit->machine->memory, devinit->name,
	    devinit->addr, 0x4000,
	    dev_ps2_ether_access, d, DM_DEFAULT, NULL);

	return 1;
}