1 /* 2 * PowerMac MacIO device emulation 3 * 4 * Copyright (c) 2005-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 #include "hw.h" 26 #include "ppc_mac.h" 27 #include "pci.h" 28 #include "escc.h" 29 30 typedef struct MacIOState 31 { 32 PCIDevice parent; 33 int is_oldworld; 34 MemoryRegion bar; 35 MemoryRegion *pic_mem; 36 MemoryRegion *dbdma_mem; 37 MemoryRegion *cuda_mem; 38 MemoryRegion *escc_mem; 39 void *nvram; 40 int nb_ide; 41 MemoryRegion *ide_mem[4]; 42 } MacIOState; 43 44 static void macio_bar_setup(MacIOState *macio_state) 45 { 46 int i; 47 MemoryRegion *bar = &macio_state->bar; 48 49 memory_region_init(bar, "macio", 0x80000); 50 if (macio_state->pic_mem) { 51 if (macio_state->is_oldworld) { 52 /* Heathrow PIC */ 53 memory_region_add_subregion(bar, 0x00000, macio_state->pic_mem); 54 } else { 55 /* OpenPIC */ 56 memory_region_add_subregion(bar, 0x40000, macio_state->pic_mem); 57 } 58 } 59 if (macio_state->dbdma_mem) { 60 memory_region_add_subregion(bar, 0x08000, macio_state->dbdma_mem); 61 } 62 if (macio_state->escc_mem) { 63 memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem); 64 } 65 if (macio_state->cuda_mem) { 66 memory_region_add_subregion(bar, 0x16000, macio_state->cuda_mem); 67 } 68 for (i = 0; i < macio_state->nb_ide; i++) { 69 if (macio_state->ide_mem[i]) { 70 memory_region_add_subregion(bar, 0x1f000 + (i * 0x1000), 71 macio_state->ide_mem[i]); 72 } 73 } 74 if (macio_state->nvram != NULL) 75 macio_nvram_setup_bar(macio_state->nvram, bar, 0x60000); 76 } 77 78 static int macio_initfn(PCIDevice *d) 79 { 80 d->config[0x3d] = 0x01; // interrupt on pin 1 81 return 0; 82 } 83 84 static void macio_class_init(ObjectClass *klass, void *data) 85 { 86 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 87 88 k->init = macio_initfn; 89 k->vendor_id = PCI_VENDOR_ID_APPLE; 90 k->class_id = PCI_CLASS_OTHERS << 8; 91 } 92 93 static TypeInfo macio_info = { 94 .name = "macio", 95 .parent = TYPE_PCI_DEVICE, 96 .instance_size = sizeof(MacIOState), 97 .class_init = macio_class_init, 98 }; 99 100 static void macio_register(void) 101 { 102 type_register_static(&macio_info); 103 } 104 105 device_init(macio_register); 106 107 void macio_init (PCIBus *bus, int device_id, int is_oldworld, 108 MemoryRegion *pic_mem, MemoryRegion *dbdma_mem, 109 MemoryRegion *cuda_mem, void *nvram, 110 int nb_ide, MemoryRegion **ide_mem, 111 MemoryRegion *escc_mem) 112 { 113 PCIDevice *d; 114 MacIOState *macio_state; 115 int i; 116 117 d = pci_create_simple(bus, -1, "macio"); 118 119 macio_state = DO_UPCAST(MacIOState, parent, d); 120 macio_state->is_oldworld = is_oldworld; 121 macio_state->pic_mem = pic_mem; 122 macio_state->dbdma_mem = dbdma_mem; 123 macio_state->cuda_mem = cuda_mem; 124 macio_state->escc_mem = escc_mem; 125 macio_state->nvram = nvram; 126 if (nb_ide > 4) 127 nb_ide = 4; 128 macio_state->nb_ide = nb_ide; 129 for (i = 0; i < nb_ide; i++) 130 macio_state->ide_mem[i] = ide_mem[i]; 131 for (; i < 4; i++) 132 macio_state->ide_mem[i] = NULL; 133 /* Note: this code is strongly inspirated from the corresponding code 134 in PearPC */ 135 136 pci_config_set_device_id(d->config, device_id); 137 138 macio_bar_setup(macio_state); 139 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &macio_state->bar); 140 } 141