LXR qemu/hw/pci-bridge/i82801b11.c

   1/*
   2 * Copyright (c) 2006 Fabrice Bellard
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a copy
   5 * of this software and associated documentation files (the "Software"), to deal
   6 * in the Software without restriction, including without limitation the rights
   7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8 * copies of the Software, and to permit persons to whom the Software is
   9 * furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20 * THE SOFTWARE.
  21 */
  22/*
  23 * QEMU i82801b11 dmi-to-pci Bridge Emulation
  24 *
  25 *  Copyright (c) 2009, 2010, 2011
  26 *                Isaku Yamahata <yamahata at valinux co jp>
  27 *                VA Linux Systems Japan K.K.
  28 *  Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
  29 *
  30 * This library is free software; you can redistribute it and/or
  31 * modify it under the terms of the GNU Lesser General Public
  32 * License as published by the Free Software Foundation; either
  33 * version 2 of the License, or (at your option) any later version.
  34 *
  35 * This library is distributed in the hope that it will be useful,
  36 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  37 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  38 * Lesser General Public License for more details.
  39 *
  40 * You should have received a copy of the GNU Lesser General Public
  41 * License along with this library; if not, see <http://www.gnu.org/licenses/>
  42 */
  43
  44#include "qemu/osdep.h"
  45#include "hw/pci/pci.h"
  46#include "migration/vmstate.h"
  47#include "qemu/module.h"
  48#include "hw/i386/ich9.h"
  49
  50/*****************************************************************************/
  51/* ICH9 DMI-to-PCI bridge */
  52#define I82801ba_SSVID_OFFSET   0x50
  53#define I82801ba_SSVID_SVID     0
  54#define I82801ba_SSVID_SSID     0
  55
  56typedef struct I82801b11Bridge {
  57    /*< private >*/
  58    PCIBridge parent_obj;
  59    /*< public >*/
  60} I82801b11Bridge;
  61
  62static void i82801b11_bridge_realize(PCIDevice *d, Error **errp)
  63{
  64    int rc;
  65
  66    pci_bridge_initfn(d, TYPE_PCI_BUS);
  67
  68    rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET,
  69                               I82801ba_SSVID_SVID, I82801ba_SSVID_SSID,
  70                               errp);
  71    if (rc < 0) {
  72        goto err_bridge;
  73    }
  74    pci_config_set_prog_interface(d->config, PCI_CLASS_BRIDGE_PCI_INF_SUB);
  75    return;
  76
  77err_bridge:
  78    pci_bridge_exitfn(d);
  79}
  80
  81static const VMStateDescription i82801b11_bridge_dev_vmstate = {
  82    .name = "i82801b11_bridge",
  83    .priority = MIG_PRI_PCI_BUS,
  84    .fields = (VMStateField[]) {
  85        VMSTATE_PCI_DEVICE(parent_obj, PCIBridge),
  86        VMSTATE_END_OF_LIST()
  87    }
  88};
  89
  90static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
  91{
  92    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
  93    DeviceClass *dc = DEVICE_CLASS(klass);
  94
  95    k->is_bridge = true;
  96    k->vendor_id = PCI_VENDOR_ID_INTEL;
  97    k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;
  98    k->revision = ICH9_D2P_A2_REVISION;
  99    k->realize = i82801b11_bridge_realize;
 100    k->config_write = pci_bridge_write_config;
 101    dc->vmsd = &i82801b11_bridge_dev_vmstate;
 102    dc->reset = pci_bridge_reset;
 103    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 104}
 105
 106static const TypeInfo i82801b11_bridge_info = {
 107    .name          = "i82801b11-bridge",
 108    .parent        = TYPE_PCI_BRIDGE,
 109    .instance_size = sizeof(I82801b11Bridge),
 110    .class_init    = i82801b11_bridge_class_init,
 111    .interfaces = (InterfaceInfo[]) {
 112        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
 113        { },
 114    },
 115};
 116
 117static void d2pbr_register(void)
 118{
 119    type_register_static(&i82801b11_bridge_info);
 120}
 121
 122type_init(d2pbr_register);
 123