104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/* This file is part of the program psim.
|
|
|
|
Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
|
|
|
|
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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
|
|
#ifndef _HW_TRACE_C_
|
|
#define _HW_TRACE_C_
|
|
|
|
#include "device_table.h"
|
|
#include <stdarg.h>
|
|
|
|
/* DEVICE
|
|
|
|
trace - the properties of this dummy device specify trace options
|
|
|
|
DESCRIPTION
|
|
|
|
The properties of this device are used, during initialization, to
|
|
specify the value various simulation trace options. The
|
|
initialization can occure implicitly (during device tree init) or
|
|
explicitly using this devices ioctl method.
|
|
|
|
The actual options and their default values (for a given target)
|
|
are defined in the file debug.
|
|
|
|
This device is normally a child of the /openprom node.
|
|
|
|
EXAMPLE
|
|
|
|
The trace option dump-device-tree can be enabled by specifying the
|
|
option:
|
|
|
|
| -o '/openprom/trace/dump-device-tree 0x1'
|
|
|
|
Alternativly the shorthand version:
|
|
|
|
| -t dump-device-tree
|
|
|
|
can be used. */
|
|
|
|
|
|
/* Hook to allow the initialization of the trace options at any time */
|
|
|
|
static int
|
|
hw_trace_ioctl(device *me,
|
|
cpu *processor,
|
|
unsigned_word cia,
|
|
device_ioctl_request request,
|
|
va_list ap)
|
|
{
|
|
switch (request) {
|
|
case device_ioctl_set_trace:
|
|
{
|
|
const device_property *prop = device_find_property(me, NULL);
|
|
while (prop != NULL) {
|
|
const char *name = prop->name;
|
|
unsigned32 value = device_find_integer_property(me, name);
|
|
trace_option(name, value);
|
|
prop = device_next_property(prop);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
device_error(me, "insupported ioctl request");
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static device_callbacks const hw_trace_callbacks = {
|
|
{ NULL, }, /* init */
|
|
{ NULL, }, /* address */
|
|
{ NULL, }, /* IO */
|
|
{ NULL, }, /* DMA */
|
|
{ NULL, }, /* interrupt */
|
|
{ NULL, }, /* unit */
|
|
NULL, /* instance-create */
|
|
hw_trace_ioctl,
|
|
};
|
|
|
|
const device_descriptor hw_trace_device_descriptor[] = {
|
|
{ "trace", NULL, &hw_trace_callbacks },
|
|
{ NULL },
|
|
};
|
|
|
|
#endif /* _HW_TRACE_C_ */
|