| 1 |
330 |
jeremybenn |
/* CRIS device support
|
| 2 |
|
|
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
|
| 3 |
|
|
Free Software Foundation, Inc.
|
| 4 |
|
|
Contributed by Axis Communications.
|
| 5 |
|
|
|
| 6 |
|
|
This file is part of the GNU simulators.
|
| 7 |
|
|
|
| 8 |
|
|
This program is free software; you can redistribute it and/or modify
|
| 9 |
|
|
it under the terms of the GNU General Public License as published by
|
| 10 |
|
|
the Free Software Foundation; either version 3 of the License, or
|
| 11 |
|
|
(at your option) any later version.
|
| 12 |
|
|
|
| 13 |
|
|
This program is distributed in the hope that it will be useful,
|
| 14 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 15 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 16 |
|
|
GNU General Public License for more details.
|
| 17 |
|
|
|
| 18 |
|
|
You should have received a copy of the GNU General Public License
|
| 19 |
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
| 20 |
|
|
|
| 21 |
|
|
/* Based on the i960 devices.c (for the purposes, the same as all the
|
| 22 |
|
|
others). */
|
| 23 |
|
|
|
| 24 |
|
|
#include "sim-main.h"
|
| 25 |
|
|
|
| 26 |
|
|
#ifdef HAVE_DV_SOCKSER
|
| 27 |
|
|
#include "dv-sockser.h"
|
| 28 |
|
|
#endif
|
| 29 |
|
|
|
| 30 |
|
|
#include "hw-device.h"
|
| 31 |
|
|
|
| 32 |
|
|
/* Placeholder definition. */
|
| 33 |
|
|
struct _device { char dummy; } cris_devices;
|
| 34 |
|
|
|
| 35 |
|
|
void
|
| 36 |
|
|
device_error (device *me ATTRIBUTE_UNUSED,
|
| 37 |
|
|
const char *message ATTRIBUTE_UNUSED,
|
| 38 |
|
|
...)
|
| 39 |
|
|
{
|
| 40 |
|
|
abort ();
|
| 41 |
|
|
}
|
| 42 |
|
|
|
| 43 |
|
|
int
|
| 44 |
|
|
device_io_read_buffer (device *me ATTRIBUTE_UNUSED,
|
| 45 |
|
|
void *source ATTRIBUTE_UNUSED,
|
| 46 |
|
|
int space ATTRIBUTE_UNUSED,
|
| 47 |
|
|
address_word addr ATTRIBUTE_UNUSED,
|
| 48 |
|
|
unsigned nr_bytes ATTRIBUTE_UNUSED,
|
| 49 |
|
|
SIM_DESC sd ATTRIBUTE_UNUSED,
|
| 50 |
|
|
SIM_CPU *cpu ATTRIBUTE_UNUSED,
|
| 51 |
|
|
sim_cia cia ATTRIBUTE_UNUSED)
|
| 52 |
|
|
{
|
| 53 |
|
|
#if WITH_HW
|
| 54 |
|
|
return hw_io_read_buffer ((struct hw *) me, source, space, addr, nr_bytes);
|
| 55 |
|
|
#else
|
| 56 |
|
|
abort ();
|
| 57 |
|
|
#endif
|
| 58 |
|
|
}
|
| 59 |
|
|
|
| 60 |
|
|
int
|
| 61 |
|
|
device_io_write_buffer (device *me ATTRIBUTE_UNUSED,
|
| 62 |
|
|
const void *source,
|
| 63 |
|
|
int space ATTRIBUTE_UNUSED,
|
| 64 |
|
|
address_word addr, unsigned nr_bytes,
|
| 65 |
|
|
SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
|
| 66 |
|
|
{
|
| 67 |
|
|
static const unsigned char ok[] = { 4, 0, 0, 0x90};
|
| 68 |
|
|
static const unsigned char bad[] = { 8, 0, 0, 0x90};
|
| 69 |
|
|
|
| 70 |
|
|
if (cris_have_900000xxif)
|
| 71 |
|
|
{
|
| 72 |
|
|
if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
|
| 73 |
|
|
return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
|
| 74 |
|
|
else if (addr == 0x90000008
|
| 75 |
|
|
&& memcmp (source, bad, sizeof bad) == 0)
|
| 76 |
|
|
return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
|
| 77 |
|
|
}
|
| 78 |
|
|
#if WITH_HW
|
| 79 |
|
|
else
|
| 80 |
|
|
return hw_io_write_buffer ((struct hw *) me, source, space, addr, nr_bytes);
|
| 81 |
|
|
#endif
|
| 82 |
|
|
|
| 83 |
|
|
/* If it wasn't one of those, send an invalid-memory signal. */
|
| 84 |
|
|
sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
|
| 85 |
|
|
write_transfer, sim_core_unmapped_signal);
|
| 86 |
|
|
|
| 87 |
|
|
return 0;
|
| 88 |
|
|
}
|
