qemu-e2k/hw/tricore/tricore_testdevice.c

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/*
* Copyright (c) 2018-2021 Bastian Koppelmann Paderborn University
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "hw/qdev-properties.h"
#include "hw/tricore/tricore_testdevice.h"
static void tricore_testdevice_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
exit(value);
}
static uint64_t tricore_testdevice_read(void *opaque, hwaddr offset,
unsigned size)
{
return 0xdeadbeef;
}
static void tricore_testdevice_reset(DeviceState *dev)
{
}
static const MemoryRegionOps tricore_testdevice_ops = {
.read = tricore_testdevice_read,
.write = tricore_testdevice_write,
.valid = {
.min_access_size = 4,
.max_access_size = 4,
},
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void tricore_testdevice_init(Object *obj)
{
TriCoreTestDeviceState *s = TRICORE_TESTDEVICE(obj);
/* map memory */
memory_region_init_io(&s->iomem, OBJECT(s), &tricore_testdevice_ops, s,
"tricore_testdevice", 0x4);
}
static Property tricore_testdevice_properties[] = {
DEFINE_PROP_END_OF_LIST()
};
static void tricore_testdevice_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
device_class_set_props(dc, tricore_testdevice_properties);
dc->reset = tricore_testdevice_reset;
}
static const TypeInfo tricore_testdevice_info = {
.name = TYPE_TRICORE_TESTDEVICE,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(TriCoreTestDeviceState),
.instance_init = tricore_testdevice_init,
.class_init = tricore_testdevice_class_init,
};
static void tricore_testdevice_register_types(void)
{
type_register_static(&tricore_testdevice_info);
}
type_init(tricore_testdevice_register_types)