1 /* 2 * Copyright 2004-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 * Copyright 2002-2003, Thomas Kurschel. All rights reserved. 4 * 5 * Distributed under the terms of the MIT License. 6 */ 7 8 9 #include <stdio.h> 10 #include <stdlib.h> 11 #include <string.h> 12 13 #include "pci.h" 14 #include "pci_private.h" 15 16 17 // information about one PCI device 18 struct pci_device { 19 PCIDev* device; 20 device_node* node; 21 }; 22 23 24 static uint8 25 pci_device_read_io_8(pci_device* device, addr_t mappedIOAddress) 26 { 27 return pci_read_io_8(mappedIOAddress); 28 } 29 30 31 static void 32 pci_device_write_io_8(pci_device* device, addr_t mappedIOAddress, 33 uint8 value) 34 { 35 pci_write_io_8(mappedIOAddress, value); 36 } 37 38 39 static uint16 40 pci_device_read_io_16(pci_device* device, addr_t mappedIOAddress) 41 { 42 return pci_read_io_16(mappedIOAddress); 43 } 44 45 46 static void 47 pci_device_write_io_16(pci_device* device, addr_t mappedIOAddress, 48 uint16 value) 49 { 50 pci_write_io_16(mappedIOAddress, value); 51 } 52 53 54 static uint32 55 pci_device_read_io_32(pci_device* device, addr_t mappedIOAddress) 56 { 57 return pci_read_io_32(mappedIOAddress); 58 } 59 60 61 static void 62 pci_device_write_io_32(pci_device* device, addr_t mappedIOAddress, uint32 value) 63 { 64 pci_write_io_32(mappedIOAddress, value); 65 } 66 67 68 static uint32 69 pci_device_read_pci_config(pci_device* device, uint16 offset, uint8 size) 70 { 71 return gPCI->ReadConfig(device->device, offset, size); 72 } 73 74 75 static void 76 pci_device_write_pci_config(pci_device* device, uint16 offset, uint8 size, 77 uint32 value) 78 { 79 gPCI->WriteConfig(device->device, offset, size, value); 80 } 81 82 83 static phys_addr_t 84 pci_device_ram_address(pci_device* device, phys_addr_t physicalAddress) 85 { 86 return pci_ram_address(physicalAddress); 87 } 88 89 90 static status_t 91 pci_device_find_capability(pci_device* device, uint8 capID, uint8* offset) 92 { 93 return gPCI->FindCapability(device->device, capID, offset); 94 } 95 96 97 static status_t 98 pci_device_find_extended_capability(pci_device* device, uint16 capID, 99 uint16* offset) 100 { 101 return gPCI->FindExtendedCapability(device->device, capID, offset); 102 } 103 104 105 static void 106 pci_device_get_pci_info(pci_device* device, struct pci_info* info) 107 { 108 if (info == NULL) 109 return; 110 111 *info = device->device->info; 112 } 113 114 115 static status_t 116 pci_device_init_driver(device_node* node, void** _cookie) 117 { 118 uint8 domain; 119 uint8 bus, deviceNumber, function; 120 if (gDeviceManager->get_attr_uint8(node, B_PCI_DEVICE_DOMAIN, &domain, 121 false) != B_OK 122 || gDeviceManager->get_attr_uint8(node, B_PCI_DEVICE_BUS, &bus, 123 false) != B_OK 124 || gDeviceManager->get_attr_uint8(node, B_PCI_DEVICE_DEVICE, 125 &deviceNumber, false) != B_OK 126 || gDeviceManager->get_attr_uint8(node, B_PCI_DEVICE_FUNCTION, 127 &function, false) != B_OK) 128 return B_ERROR; 129 130 PCIDev *dev = gPCI->FindDevice(domain, bus, deviceNumber, function); 131 if (dev == NULL) { 132 panic("device not found!\n"); 133 return ENODEV; 134 } 135 136 pci_device* device = (pci_device*)malloc(sizeof(*device)); 137 if (device == NULL) 138 return B_NO_MEMORY; 139 140 device->device = dev; 141 device->node = node; 142 143 *_cookie = device; 144 return B_OK; 145 } 146 147 148 static void 149 pci_device_uninit_driver(void* cookie) 150 { 151 pci_device* device = (pci_device*)cookie; 152 free(device); 153 } 154 155 156 static status_t 157 pci_device_std_ops(int32 op, ...) 158 { 159 switch (op) { 160 case B_MODULE_INIT: 161 case B_MODULE_UNINIT: 162 return B_OK; 163 } 164 165 return B_BAD_VALUE; 166 } 167 168 169 pci_device_module_info gPCIDeviceModule = { 170 { 171 { 172 PCI_DEVICE_MODULE_NAME, 173 0, 174 pci_device_std_ops 175 }, 176 177 NULL, // supports device 178 NULL, // register device (our parent registered us) 179 pci_device_init_driver, 180 pci_device_uninit_driver, 181 NULL, // register child devices 182 NULL, // rescan devices 183 NULL, // device removed 184 }, 185 186 pci_device_read_io_8, 187 pci_device_write_io_8, 188 pci_device_read_io_16, 189 pci_device_write_io_16, 190 pci_device_read_io_32, 191 pci_device_write_io_32, 192 193 pci_device_ram_address, 194 195 pci_device_read_pci_config, 196 pci_device_write_pci_config, 197 pci_device_find_capability, 198 pci_device_get_pci_info, 199 pci_device_find_extended_capability 200 }; 201