mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-30 15:00:34 +00:00
8063396bf3
This converts existing DECLARE_INSTANCE_CHECKER usage to OBJECT_DECLARE_SIMPLE_TYPE when possible. $ ./scripts/codeconverter/converter.py -i \ --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20200916182519.415636-6-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
|
|
* QEMU Empty Slot
|
|
*
|
|
* The empty_slot device emulates known to a bus but not connected devices.
|
|
*
|
|
* Copyright (c) 2010 Artyom Tarasenko
|
|
*
|
|
* This code is licensed under the GNU GPL v2 or (at your option) any later
|
|
* version.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "hw/sysbus.h"
|
|
#include "hw/qdev-properties.h"
|
|
#include "hw/misc/empty_slot.h"
|
|
#include "qapi/error.h"
|
|
#include "trace.h"
|
|
#include "qom/object.h"
|
|
|
|
#define TYPE_EMPTY_SLOT "empty_slot"
|
|
OBJECT_DECLARE_SIMPLE_TYPE(EmptySlot, EMPTY_SLOT)
|
|
|
|
struct EmptySlot {
|
|
SysBusDevice parent_obj;
|
|
|
|
MemoryRegion iomem;
|
|
char *name;
|
|
uint64_t size;
|
|
};
|
|
|
|
static uint64_t empty_slot_read(void *opaque, hwaddr addr,
|
|
unsigned size)
|
|
{
|
|
EmptySlot *s = EMPTY_SLOT(opaque);
|
|
|
|
trace_empty_slot_write(addr, size << 1, 0, size, s->name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void empty_slot_write(void *opaque, hwaddr addr,
|
|
uint64_t val, unsigned size)
|
|
{
|
|
EmptySlot *s = EMPTY_SLOT(opaque);
|
|
|
|
trace_empty_slot_write(addr, size << 1, val, size, s->name);
|
|
}
|
|
|
|
static const MemoryRegionOps empty_slot_ops = {
|
|
.read = empty_slot_read,
|
|
.write = empty_slot_write,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
};
|
|
|
|
void empty_slot_init(const char *name, hwaddr addr, uint64_t slot_size)
|
|
{
|
|
if (slot_size > 0) {
|
|
/* Only empty slots larger than 0 byte need handling. */
|
|
DeviceState *dev;
|
|
|
|
dev = qdev_new(TYPE_EMPTY_SLOT);
|
|
|
|
qdev_prop_set_uint64(dev, "size", slot_size);
|
|
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
|
|
|
|
sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, addr, -10000);
|
|
}
|
|
}
|
|
|
|
static void empty_slot_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
EmptySlot *s = EMPTY_SLOT(dev);
|
|
|
|
if (s->name == NULL) {
|
|
s->name = g_strdup("empty-slot");
|
|
}
|
|
memory_region_init_io(&s->iomem, OBJECT(s), &empty_slot_ops, s,
|
|
s->name, s->size);
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
|
|
}
|
|
|
|
static Property empty_slot_properties[] = {
|
|
DEFINE_PROP_UINT64("size", EmptySlot, size, 0),
|
|
DEFINE_PROP_STRING("name", EmptySlot, name),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void empty_slot_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
dc->realize = empty_slot_realize;
|
|
device_class_set_props(dc, empty_slot_properties);
|
|
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo empty_slot_info = {
|
|
.name = TYPE_EMPTY_SLOT,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(EmptySlot),
|
|
.class_init = empty_slot_class_init,
|
|
};
|
|
|
|
static void empty_slot_register_types(void)
|
|
{
|
|
type_register_static(&empty_slot_info);
|
|
}
|
|
|
|
type_init(empty_slot_register_types)
|