| 1 | /* CRIS device support |
| 2 | Copyright (C) 2004, 2005 Free Software Foundation, Inc. |
| 3 | Contributed by Axis Communications. |
| 4 | |
| 5 | This file is part of the GNU simulators. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License along |
| 18 | with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 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 | /* Placeholder definition. */ |
| 31 | struct _device { char dummy; } cris_devices; |
| 32 | |
| 33 | void |
| 34 | device_error (device *me ATTRIBUTE_UNUSED, |
| 35 | char *message ATTRIBUTE_UNUSED, |
| 36 | ...) |
| 37 | { |
| 38 | abort (); |
| 39 | } |
| 40 | |
| 41 | int |
| 42 | device_io_read_buffer (device *me ATTRIBUTE_UNUSED, |
| 43 | void *source ATTRIBUTE_UNUSED, |
| 44 | int space ATTRIBUTE_UNUSED, |
| 45 | address_word addr ATTRIBUTE_UNUSED, |
| 46 | unsigned nr_bytes ATTRIBUTE_UNUSED, |
| 47 | SIM_DESC sd ATTRIBUTE_UNUSED, |
| 48 | SIM_CPU *cpu ATTRIBUTE_UNUSED, |
| 49 | sim_cia cia ATTRIBUTE_UNUSED) |
| 50 | { |
| 51 | abort (); |
| 52 | } |
| 53 | |
| 54 | int |
| 55 | device_io_write_buffer (device *me ATTRIBUTE_UNUSED, |
| 56 | const void *source, |
| 57 | int space ATTRIBUTE_UNUSED, |
| 58 | address_word addr, unsigned nr_bytes, |
| 59 | SIM_DESC sd, SIM_CPU *cpu, sim_cia cia) |
| 60 | { |
| 61 | static const unsigned char ok[] = { 4, 0, 0, 0x90}; |
| 62 | static const unsigned char bad[] = { 8, 0, 0, 0x90}; |
| 63 | |
| 64 | if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0) |
| 65 | cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia); |
| 66 | else if (addr == 0x90000008 |
| 67 | && memcmp (source, bad, sizeof bad) == 0) |
| 68 | cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia); |
| 69 | |
| 70 | /* If it wasn't one of those, send an invalid-memory signal. */ |
| 71 | sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr, |
| 72 | write_transfer, sim_core_unmapped_signal); |
| 73 | } |