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/*
* Copyright (C) 2004 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_sn.c,v 1.5 2005/01/09 01:55:25 debug Exp $
*
* National Semiconductor SONIC ("sn") DP83932 ethernet.
*
*
* TODO
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "memory.h"
#include "misc.h"
#include "devices.h"
#include "dp83932reg.h"
struct sn_data {
int irq_nr;
uint32_t reg[SONIC_NREGS];
};
/*
* dev_sn_access():
*/
int dev_sn_access(struct cpu *cpu, struct memory *mem,
uint64_t relative_addr, unsigned char *data, size_t len,
int writeflag, void *extra)
{
struct sn_data *d = (struct sn_data *) extra;
uint64_t idata = 0, odata = 0;
int regnr;
idata = memory_readmax64(cpu, data, len);
regnr = relative_addr / sizeof(uint32_t);
if (regnr < SONIC_NREGS) {
if (writeflag == MEM_WRITE)
d->reg[regnr] = idata;
else
odata = d->reg[regnr];
}
switch (regnr) {
default:
if (writeflag == MEM_WRITE) {
fatal("[ sn: unimplemented write to address 0x%x (regnr %i), data=0x%02x ]\n",
(int)relative_addr, regnr, (int)idata);
} else {
fatal("[ sn: unimplemented read from address 0x%x (regnr %i) ]\n",
(int)relative_addr, regnr);
}
}
if (writeflag == MEM_READ)
memory_writemax64(cpu, data, len, odata);
return 1;
}
/*
* dev_sn_init():
*/
void dev_sn_init(struct cpu *cpu, struct memory *mem,
uint64_t baseaddr, int irq_nr)
{
struct sn_data *d = malloc(sizeof(struct sn_data));
if (d == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
memset(d, 0, sizeof(struct sn_data));
d->irq_nr = irq_nr;
memory_device_register(mem, "sn", baseaddr, DEV_SN_LENGTH,
dev_sn_access, (void *)d, MEM_DEFAULT, NULL);
}
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