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/*
* Vhost-user GPIO virtio device
*
* Copyright (c) 2022 Viresh Kumar <viresh.kumar@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/virtio-bus.h"
#include "hw/virtio/vhost-user-gpio.h"
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_gpio.h"
static const Property vgpio_properties[] = {
DEFINE_PROP_CHR("chardev", VHostUserBase, chardev),
};
static void vgpio_realize(DeviceState *dev, Error **errp)
{
VHostUserBase *vub = VHOST_USER_BASE(dev);
VHostUserBaseClass *vubc = VHOST_USER_BASE_GET_CLASS(dev);
/* Fixed for GPIO */
vub->virtio_id = VIRTIO_ID_GPIO;
vub->num_vqs = 2;
vub->config_size = sizeof(struct virtio_gpio_config);
vubc->parent_realize(dev, errp);
}
static const VMStateDescription vu_gpio_vmstate = {
.name = "vhost-user-gpio",
.unmigratable = 1,
};
static void vu_gpio_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VHostUserBaseClass *vubc = VHOST_USER_BASE_CLASS(klass);
dc->vmsd = &vu_gpio_vmstate;
device_class_set_props(dc, vgpio_properties);
device_class_set_parent_realize(dc, vgpio_realize,
&vubc->parent_realize);
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
}
static const TypeInfo vu_gpio_info = {
.name = TYPE_VHOST_USER_GPIO,
.parent = TYPE_VHOST_USER_BASE,
.instance_size = sizeof(VHostUserGPIO),
.class_init = vu_gpio_class_init,
};
static void vu_gpio_register_types(void)
{
type_register_static(&vu_gpio_info);
}
type_init(vu_gpio_register_types)
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