116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
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/*
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* QEMU IndustryPack emulation
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*
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* Copyright (C) 2012 Igalia, S.L.
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* Author: Alberto Garcia <agarcia@igalia.com>
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*
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* This code is licensed under the GNU GPL v2 or (at your option) any
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* later version.
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*/
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#include "ipack.h"
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IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot)
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{
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BusChild *kid;
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QTAILQ_FOREACH(kid, &BUS(bus)->children, sibling) {
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DeviceState *qdev = kid->child;
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IPackDevice *ip = IPACK_DEVICE(qdev);
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if (ip->slot == slot) {
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return ip;
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}
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}
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return NULL;
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}
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void ipack_bus_new_inplace(IPackBus *bus, DeviceState *parent,
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const char *name, uint8_t n_slots,
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qemu_irq_handler handler)
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{
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qbus_create_inplace(&bus->qbus, TYPE_IPACK_BUS, parent, name);
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bus->n_slots = n_slots;
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bus->set_irq = handler;
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}
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static int ipack_device_dev_init(DeviceState *qdev)
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{
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IPackBus *bus = IPACK_BUS(qdev_get_parent_bus(qdev));
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IPackDevice *dev = IPACK_DEVICE(qdev);
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IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
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if (dev->slot < 0) {
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dev->slot = bus->free_slot;
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}
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if (dev->slot >= bus->n_slots) {
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return -1;
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}
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bus->free_slot = dev->slot + 1;
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dev->irq = qemu_allocate_irqs(bus->set_irq, dev, 2);
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return k->init(dev);
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}
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static int ipack_device_dev_exit(DeviceState *qdev)
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{
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IPackDevice *dev = IPACK_DEVICE(qdev);
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IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
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if (k->exit) {
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k->exit(dev);
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}
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qemu_free_irqs(dev->irq);
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return 0;
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}
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static Property ipack_device_props[] = {
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DEFINE_PROP_INT32("slot", IPackDevice, slot, -1),
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DEFINE_PROP_END_OF_LIST()
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};
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static void ipack_device_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *k = DEVICE_CLASS(klass);
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k->bus_type = TYPE_IPACK_BUS;
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k->init = ipack_device_dev_init;
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k->exit = ipack_device_dev_exit;
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k->props = ipack_device_props;
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}
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const VMStateDescription vmstate_ipack_device = {
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.name = "ipack_device",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.fields = (VMStateField[]) {
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VMSTATE_INT32(slot, IPackDevice),
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VMSTATE_END_OF_LIST()
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}
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};
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static const TypeInfo ipack_device_info = {
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.name = TYPE_IPACK_DEVICE,
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.parent = TYPE_DEVICE,
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.instance_size = sizeof(IPackDevice),
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.class_size = sizeof(IPackDeviceClass),
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.class_init = ipack_device_class_init,
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.abstract = true,
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};
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static const TypeInfo ipack_bus_info = {
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.name = TYPE_IPACK_BUS,
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.parent = TYPE_BUS,
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.instance_size = sizeof(IPackBus),
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};
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static void ipack_register_types(void)
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{
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type_register_static(&ipack_device_info);
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type_register_static(&ipack_bus_info);
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}
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type_init(ipack_register_types)
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