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/*
* QEMU IndustryPack emulation
*
* Copyright (C) 2012 Igalia, S.L.
* Author: Alberto Garcia <berto@igalia.com>
*
* This code is licensed under the GNU GPL v2 or (at your option) any
* later version.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "hw/ipack/ipack.h"
#include "hw/irq.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot)
{
BusChild *kid;
QTAILQ_FOREACH(kid, &BUS(bus)->children, sibling) {
DeviceState *qdev = kid->child;
IPackDevice *ip = IPACK_DEVICE(qdev);
if (ip->slot == slot) {
return ip;
}
}
return NULL;
}
void ipack_bus_init(IPackBus *bus, size_t bus_size,
DeviceState *parent,
uint8_t n_slots,
qemu_irq_handler handler)
{
qbus_init(bus, bus_size, TYPE_IPACK_BUS, parent, NULL);
bus->n_slots = n_slots;
bus->set_irq = handler;
}
static void ipack_device_realize(DeviceState *dev, Error **errp)
{
IPackDevice *idev = IPACK_DEVICE(dev);
IPackBus *bus = IPACK_BUS(qdev_get_parent_bus(dev));
IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
if (idev->slot < 0) {
idev->slot = bus->free_slot;
}
if (idev->slot >= bus->n_slots) {
error_setg(errp, "Only %" PRIu8 " slots available.", bus->n_slots);
return;
}
bus->free_slot = idev->slot + 1;
idev->irq = qemu_allocate_irqs(bus->set_irq, idev, 2);
k->realize(dev, errp);
}
static void ipack_device_unrealize(DeviceState *dev)
{
IPackDevice *idev = IPACK_DEVICE(dev);
IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
if (k->unrealize) {
k->unrealize(dev);
return;
}
qemu_free_irqs(idev->irq, 2);
}
static Property ipack_device_props[] = {
DEFINE_PROP_INT32("slot", IPackDevice, slot, -1),
DEFINE_PROP_END_OF_LIST()
};
static void ipack_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *k = DEVICE_CLASS(klass);
set_bit(DEVICE_CATEGORY_INPUT, k->categories);
k->bus_type = TYPE_IPACK_BUS;
k->realize = ipack_device_realize;
k->unrealize = ipack_device_unrealize;
device_class_set_props(k, ipack_device_props);
}
const VMStateDescription vmstate_ipack_device = {
.name = "ipack_device",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_INT32(slot, IPackDevice),
VMSTATE_END_OF_LIST()
}
};
static const TypeInfo ipack_device_info = {
.name = TYPE_IPACK_DEVICE,
.parent = TYPE_DEVICE,
.instance_size = sizeof(IPackDevice),
.class_size = sizeof(IPackDeviceClass),
.class_init = ipack_device_class_init,
.abstract = true,
};
static const TypeInfo ipack_bus_info = {
.name = TYPE_IPACK_BUS,
.parent = TYPE_BUS,
.instance_size = sizeof(IPackBus),
};
static void ipack_register_types(void)
{
type_register_static(&ipack_device_info);
type_register_static(&ipack_bus_info);
}
type_init(ipack_register_types)
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