Juan Quintela | 823e675 | 2009-08-28 15:28:13 +0200 | [diff] [blame] | 1 | /* |
| 2 | * QEMU PIIX4 PCI Bridge Emulation |
| 3 | * |
| 4 | * Copyright (c) 2006 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #include "hw.h" |
| 26 | #include "pc.h" |
| 27 | #include "pci.h" |
| 28 | #include "isa.h" |
| 29 | #include "sysbus.h" |
| 30 | |
| 31 | PCIDevice *piix4_dev; |
| 32 | |
| 33 | static void piix4_reset(void *opaque) |
| 34 | { |
| 35 | PCIDevice *d = opaque; |
| 36 | uint8_t *pci_conf = d->config; |
| 37 | |
| 38 | pci_conf[0x04] = 0x07; // master, memory and I/O |
| 39 | pci_conf[0x05] = 0x00; |
| 40 | pci_conf[0x06] = 0x00; |
| 41 | pci_conf[0x07] = 0x02; // PCI_status_devsel_medium |
| 42 | pci_conf[0x4c] = 0x4d; |
| 43 | pci_conf[0x4e] = 0x03; |
| 44 | pci_conf[0x4f] = 0x00; |
| 45 | pci_conf[0x60] = 0x0a; // PCI A -> IRQ 10 |
| 46 | pci_conf[0x61] = 0x0a; // PCI B -> IRQ 10 |
| 47 | pci_conf[0x62] = 0x0b; // PCI C -> IRQ 11 |
| 48 | pci_conf[0x63] = 0x0b; // PCI D -> IRQ 11 |
| 49 | pci_conf[0x69] = 0x02; |
| 50 | pci_conf[0x70] = 0x80; |
| 51 | pci_conf[0x76] = 0x0c; |
| 52 | pci_conf[0x77] = 0x0c; |
| 53 | pci_conf[0x78] = 0x02; |
| 54 | pci_conf[0x79] = 0x00; |
| 55 | pci_conf[0x80] = 0x00; |
| 56 | pci_conf[0x82] = 0x00; |
| 57 | pci_conf[0xa0] = 0x08; |
| 58 | pci_conf[0xa2] = 0x00; |
| 59 | pci_conf[0xa3] = 0x00; |
| 60 | pci_conf[0xa4] = 0x00; |
| 61 | pci_conf[0xa5] = 0x00; |
| 62 | pci_conf[0xa6] = 0x00; |
| 63 | pci_conf[0xa7] = 0x00; |
| 64 | pci_conf[0xa8] = 0x0f; |
| 65 | pci_conf[0xaa] = 0x00; |
| 66 | pci_conf[0xab] = 0x00; |
| 67 | pci_conf[0xac] = 0x00; |
| 68 | pci_conf[0xae] = 0x00; |
| 69 | } |
| 70 | |
| 71 | static void piix_save(QEMUFile* f, void *opaque) |
| 72 | { |
| 73 | PCIDevice *d = opaque; |
| 74 | pci_device_save(d, f); |
| 75 | } |
| 76 | |
| 77 | static int piix_load(QEMUFile* f, void *opaque, int version_id) |
| 78 | { |
| 79 | PCIDevice *d = opaque; |
| 80 | if (version_id != 2) |
| 81 | return -EINVAL; |
| 82 | return pci_device_load(d, f); |
| 83 | } |
| 84 | |
| 85 | static int piix4_initfn(PCIDevice *d) |
| 86 | { |
| 87 | uint8_t *pci_conf; |
| 88 | |
Stefan Weil | ae027ad | 2009-08-28 19:37:00 +0200 | [diff] [blame] | 89 | isa_bus_new(&d->qdev); |
Juan Quintela | 823e675 | 2009-08-28 15:28:13 +0200 | [diff] [blame] | 90 | register_savevm("PIIX4", 0, 2, piix_save, piix_load, d); |
| 91 | |
| 92 | pci_conf = d->config; |
| 93 | pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL); |
| 94 | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82371AB_0); // 82371AB/EB/MB PIIX4 PCI-to-ISA bridge |
| 95 | pci_config_set_class(pci_conf, PCI_CLASS_BRIDGE_ISA); |
| 96 | pci_conf[PCI_HEADER_TYPE] = |
| 97 | PCI_HEADER_TYPE_NORMAL | PCI_HEADER_TYPE_MULTI_FUNCTION; // header_type = PCI_multifunction, generic |
| 98 | |
| 99 | piix4_dev = d; |
Juan Quintela | 823e675 | 2009-08-28 15:28:13 +0200 | [diff] [blame] | 100 | qemu_register_reset(piix4_reset, d); |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | int piix4_init(PCIBus *bus, int devfn) |
| 105 | { |
| 106 | PCIDevice *d; |
| 107 | |
| 108 | d = pci_create_simple(bus, devfn, "PIIX4"); |
| 109 | return d->devfn; |
| 110 | } |
| 111 | |
| 112 | static PCIDeviceInfo piix4_info[] = { |
| 113 | { |
| 114 | .qdev.name = "PIIX4", |
| 115 | .qdev.desc = "ISA bridge", |
| 116 | .qdev.size = sizeof(PCIDevice), |
| 117 | .qdev.no_user = 1, |
| 118 | .init = piix4_initfn, |
| 119 | },{ |
| 120 | /* end of list */ |
| 121 | } |
| 122 | }; |
| 123 | |
| 124 | static void piix4_register(void) |
| 125 | { |
| 126 | pci_qdev_register_many(piix4_info); |
| 127 | } |
| 128 | device_init(piix4_register); |