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/* CRIS device support
Copyright (C) 2004-2012 Free Software Foundation, Inc.
Contributed by Axis Communications.
This file is part of the GNU simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Based on the i960 devices.c (for the purposes, the same as all the
others). */
#include "sim-main.h"
#ifdef HAVE_DV_SOCKSER
#include "dv-sockser.h"
#endif
#include "hw-device.h"
/* Placeholder definition. */
struct _device { char dummy; } cris_devices;
void
device_error (device *me ATTRIBUTE_UNUSED,
const char *message ATTRIBUTE_UNUSED,
...)
{
abort ();
}
int
device_io_read_buffer (device *me ATTRIBUTE_UNUSED,
void *source ATTRIBUTE_UNUSED,
int space ATTRIBUTE_UNUSED,
address_word addr ATTRIBUTE_UNUSED,
unsigned nr_bytes ATTRIBUTE_UNUSED,
SIM_DESC sd ATTRIBUTE_UNUSED,
SIM_CPU *cpu ATTRIBUTE_UNUSED,
sim_cia cia ATTRIBUTE_UNUSED)
{
#if WITH_HW
return hw_io_read_buffer ((struct hw *) me, source, space, addr, nr_bytes);
#else
abort ();
#endif
}
int
device_io_write_buffer (device *me ATTRIBUTE_UNUSED,
const void *source,
int space ATTRIBUTE_UNUSED,
address_word addr, unsigned nr_bytes,
SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
{
static const unsigned char ok[] = { 4, 0, 0, 0x90};
static const unsigned char bad[] = { 8, 0, 0, 0x90};
if (cris_have_900000xxif)
{
if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
else if (addr == 0x90000008
&& memcmp (source, bad, sizeof bad) == 0)
return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
}
#if WITH_HW
else
return hw_io_write_buffer ((struct hw *) me, source, space, addr, nr_bytes);
#endif
/* If it wasn't one of those, send an invalid-memory signal. */
sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
write_transfer, sim_core_unmapped_signal);
return 0;
}
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