Archipelago » qemu

/*

 * Copyright (c) 2006 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

/*

 * QEMU i82801b11 dmi-to-pci Bridge Emulation

 *

 *  Copyright (c) 2009, 2010, 2011

 *                Isaku Yamahata <yamahata at valinux co jp>

 *                VA Linux Systems Japan K.K.

 *  Copyright (C) 2012 Jason Baron <jbaron@redhat.com>

 *

 * 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 Lesser General Public

 * License along with this library; if not, see <http://www.gnu.org/licenses/>

 */

#include "hw/pci/pci.h"

#include "hw/i386/ich9.h"

/*****************************************************************************/

/* ICH9 DMI-to-PCI bridge */

#define I82801ba_SSVID_OFFSET   0x50

#define I82801ba_SSVID_SVID     0

#define I82801ba_SSVID_SSID     0

typedef struct I82801b11Bridge {

    PCIBridge br;

} I82801b11Bridge;

static int i82801b11_bridge_initfn(PCIDevice *d)

{

    int rc;

    rc = pci_bridge_initfn(d, TYPE_PCI_BUS);

    if (rc < 0) {

        return rc;

    }

    rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET,

                               I82801ba_SSVID_SVID, I82801ba_SSVID_SSID);

    if (rc < 0) {

        goto err_bridge;

    }

    pci_config_set_prog_interface(d->config, PCI_CLASS_BRDIGE_PCI_INF_SUB);

    return 0;

err_bridge:

    pci_bridge_exitfn(d);

    return rc;

}

static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)

{

    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);

    k->is_bridge = 1;

    k->vendor_id = PCI_VENDOR_ID_INTEL;

    k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;

    k->revision = ICH9_D2P_A2_REVISION;

    k->init = i82801b11_bridge_initfn;

}

static const TypeInfo i82801b11_bridge_info = {

    .name          = "i82801b11-bridge",

    .parent        = TYPE_PCI_DEVICE,

    .instance_size = sizeof(I82801b11Bridge),

    .class_init    = i82801b11_bridge_class_init,

};

PCIBus *ich9_d2pbr_init(PCIBus *bus, int devfn, int sec_bus)

{

    PCIDevice *d;

    PCIBridge *br;

    char buf[16];

    DeviceState *qdev;

    d = pci_create_multifunction(bus, devfn, true, "i82801b11-bridge");

    if (!d) {

        return NULL;

    }

    br = DO_UPCAST(PCIBridge, dev, d);

    qdev = &br->dev.qdev;

    snprintf(buf, sizeof(buf), "pci.%d", sec_bus);

    pci_bridge_map_irq(br, buf, pci_swizzle_map_irq_fn);

    qdev_init_nofail(qdev);

    return pci_bridge_get_sec_bus(br);

}

static void d2pbr_register(void)

{

    type_register_static(&i82801b11_bridge_info);

}

type_init(d2pbr_register);