| /* |
| * QEMU PIIX4 PCI Bridge Emulation |
| * |
| * 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. |
| */ |
| |
| #include "hw/hw.h" |
| #include "hw/i386/pc.h" |
| #include "hw/pci/pci.h" |
| #include "hw/isa/isa.h" |
| #include "hw/sysbus.h" |
| |
| PCIDevice *piix4_dev; |
| |
| typedef struct PIIX4State { |
| PCIDevice dev; |
| } PIIX4State; |
| |
| static void piix4_reset(void *opaque) |
| { |
| PIIX4State *d = opaque; |
| uint8_t *pci_conf = d->dev.config; |
| |
| pci_conf[0x04] = 0x07; // master, memory and I/O |
| pci_conf[0x05] = 0x00; |
| pci_conf[0x06] = 0x00; |
| pci_conf[0x07] = 0x02; // PCI_status_devsel_medium |
| pci_conf[0x4c] = 0x4d; |
| pci_conf[0x4e] = 0x03; |
| pci_conf[0x4f] = 0x00; |
| pci_conf[0x60] = 0x0a; // PCI A -> IRQ 10 |
| pci_conf[0x61] = 0x0a; // PCI B -> IRQ 10 |
| pci_conf[0x62] = 0x0b; // PCI C -> IRQ 11 |
| pci_conf[0x63] = 0x0b; // PCI D -> IRQ 11 |
| pci_conf[0x69] = 0x02; |
| pci_conf[0x70] = 0x80; |
| pci_conf[0x76] = 0x0c; |
| pci_conf[0x77] = 0x0c; |
| pci_conf[0x78] = 0x02; |
| pci_conf[0x79] = 0x00; |
| pci_conf[0x80] = 0x00; |
| pci_conf[0x82] = 0x00; |
| pci_conf[0xa0] = 0x08; |
| pci_conf[0xa2] = 0x00; |
| pci_conf[0xa3] = 0x00; |
| pci_conf[0xa4] = 0x00; |
| pci_conf[0xa5] = 0x00; |
| pci_conf[0xa6] = 0x00; |
| pci_conf[0xa7] = 0x00; |
| pci_conf[0xa8] = 0x0f; |
| pci_conf[0xaa] = 0x00; |
| pci_conf[0xab] = 0x00; |
| pci_conf[0xac] = 0x00; |
| pci_conf[0xae] = 0x00; |
| } |
| |
| static const VMStateDescription vmstate_piix4 = { |
| .name = "PIIX4", |
| .version_id = 2, |
| .minimum_version_id = 2, |
| .minimum_version_id_old = 2, |
| .fields = (VMStateField[]) { |
| VMSTATE_PCI_DEVICE(dev, PIIX4State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static int piix4_initfn(PCIDevice *dev) |
| { |
| PIIX4State *d = DO_UPCAST(PIIX4State, dev, dev); |
| |
| isa_bus_new(&d->dev.qdev, pci_address_space_io(dev)); |
| piix4_dev = &d->dev; |
| qemu_register_reset(piix4_reset, d); |
| return 0; |
| } |
| |
| int piix4_init(PCIBus *bus, ISABus **isa_bus, int devfn) |
| { |
| PCIDevice *d; |
| |
| d = pci_create_simple_multifunction(bus, devfn, true, "PIIX4"); |
| *isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(d), "isa.0")); |
| return d->devfn; |
| } |
| |
| static void piix4_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->init = piix4_initfn; |
| k->vendor_id = PCI_VENDOR_ID_INTEL; |
| k->device_id = PCI_DEVICE_ID_INTEL_82371AB_0; |
| k->class_id = PCI_CLASS_BRIDGE_ISA; |
| dc->desc = "ISA bridge"; |
| dc->vmsd = &vmstate_piix4; |
| /* |
| * Reason: part of PIIX4 southbridge, needs to be wired up, |
| * e.g. by mips_malta_init() |
| */ |
| dc->cannot_instantiate_with_device_add_yet = true; |
| dc->hotpluggable = false; |
| } |
| |
| static const TypeInfo piix4_info = { |
| .name = "PIIX4", |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(PIIX4State), |
| .class_init = piix4_class_init, |
| }; |
| |
| static void piix4_register_types(void) |
| { |
| type_register_static(&piix4_info); |
| } |
| |
| type_init(piix4_register_types) |