qemu/hw/usb/hcd-ehci-sysbus.c

/*
 * QEMU USB EHCI Emulation
 *
 * 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 General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "hw/usb/hcd-ehci.h"
#include "hw/sysbus.h"

typedef struct EHCISysBusState {
    SysBusDevice busdev;
    EHCIState ehci;
} EHCISysBusState;

static const VMStateDescription vmstate_ehci_sysbus = {
    .name        = "ehci-sysbus",
    .version_id  = 2,
    .minimum_version_id  = 1,
    .fields      = (VMStateField[]) {
        VMSTATE_STRUCT(ehci, EHCISysBusState, 2, vmstate_ehci, EHCIState),
        VMSTATE_END_OF_LIST()
    }
};

static Property ehci_sysbus_properties[] = {
    DEFINE_PROP_UINT32("maxframes", EHCISysBusState, ehci.maxframes, 128),
    DEFINE_PROP_END_OF_LIST(),
};

static int usb_ehci_sysbus_initfn(SysBusDevice *dev)
{
    EHCISysBusState *i = FROM_SYSBUS(EHCISysBusState, dev);
    EHCIState *s = &i->ehci;

    s->capsbase = 0x100;
    s->opregbase = 0x140;
    s->dma = &dma_context_memory;

    usb_ehci_initfn(s, DEVICE(dev));
    sysbus_init_irq(dev, &s->irq);
    sysbus_init_mmio(dev, &s->mem);
    return 0;
}

static void ehci_sysbus_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);

    k->init = usb_ehci_sysbus_initfn;
    dc->vmsd = &vmstate_ehci_sysbus;
    dc->props = ehci_sysbus_properties;
}

TypeInfo ehci_xlnx_type_info = {
    .name          = "xlnx,ps7-usb",
    .parent        = TYPE_SYS_BUS_DEVICE,
    .instance_size = sizeof(EHCISysBusState),
    .class_init    = ehci_sysbus_class_init,
};

static void ehci_sysbus_register_types(void)
{
    type_register_static(&ehci_xlnx_type_info);
}

type_init(ehci_sysbus_register_types)