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 "hw/pci/pci.h" 45 #include "hw/i386/ich9.h" 46 47 48 /*****************************************************************************/ 49 /* ICH9 DMI-to-PCI bridge */ 50 #define I82801ba_SSVID_OFFSET 0x50 51 #define I82801ba_SSVID_SVID 0 52 #define I82801ba_SSVID_SSID 0 53 54 typedef struct I82801b11Bridge { 55 /*< private >*/ 56 PCIBridge parent_obj; 57 /*< public >*/ 58 } I82801b11Bridge; 59 60 static int i82801b11_bridge_initfn(PCIDevice *d) 61 { 62 int rc; 63 64 rc = pci_bridge_initfn(d, TYPE_PCI_BUS); 65 if (rc < 0) { 66 return rc; 67 } 68 69 rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET, 70 I82801ba_SSVID_SVID, I82801ba_SSVID_SSID); 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 0; 76 77 err_bridge: 78 pci_bridge_exitfn(d); 79 80 return rc; 81 } 82 83 static void i82801b11_bridge_class_init(ObjectClass *klass, void *data) 84 { 85 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 86 DeviceClass *dc = DEVICE_CLASS(klass); 87 88 k->is_bridge = 1; 89 k->vendor_id = PCI_VENDOR_ID_INTEL; 90 k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11; 91 k->revision = ICH9_D2P_A2_REVISION; 92 k->init = i82801b11_bridge_initfn; 93 k->config_write = pci_bridge_write_config; 94 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 95 } 96 97 static const TypeInfo i82801b11_bridge_info = { 98 .name = "i82801b11-bridge", 99 .parent = TYPE_PCI_BRIDGE, 100 .instance_size = sizeof(I82801b11Bridge), 101 .class_init = i82801b11_bridge_class_init, 102 }; 103 104 PCIBus *ich9_d2pbr_init(PCIBus *bus, int devfn, int sec_bus) 105 { 106 PCIDevice *d; 107 PCIBridge *br; 108 char buf[16]; 109 DeviceState *qdev; 110 111 d = pci_create_multifunction(bus, devfn, true, "i82801b11-bridge"); 112 if (!d) { 113 return NULL; 114 } 115 br = PCI_BRIDGE(d); 116 qdev = DEVICE(d); 117 118 snprintf(buf, sizeof(buf), "pci.%d", sec_bus); 119 pci_bridge_map_irq(br, buf, pci_swizzle_map_irq_fn); 120 qdev_init_nofail(qdev); 121 122 return pci_bridge_get_sec_bus(br); 123 } 124 125 static void d2pbr_register(void) 126 { 127 type_register_static(&i82801b11_bridge_info); 128 } 129 130 type_init(d2pbr_register); 131