projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3db51098 | 1 | /**@file\r |
| 2 | \r | |
| ead42efc | 3 | Copyright (c) 2006, Intel Corporation \r |
| 4 | All rights reserved. This program and the accompanying materials \r | |
| 5 | are licensed and made available under the terms and conditions of the BSD License \r | |
| 6 | which accompanies this distribution. The full text of the license may be found at \r | |
| 7 | http://opensource.org/licenses/bsd-license.php \r | |
| 8 | \r | |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 11 | \r | |
| 3db51098 | 12 | **/\r |
| ead42efc | 13 | \r |
| ead42efc | 14 | \r |
| 15 | #include "pcibus.h"\r | |
| 16 | \r | |
| 17 | //\r | |
| 18 | // Internal use only\r | |
| 19 | //\r | |
| 20 | STATIC\r | |
| 21 | EFI_STATUS\r | |
| 22 | ReportErrorStatusCode (\r | |
| 23 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 24 | IN EFI_STATUS_CODE_VALUE Code\r | |
| 25 | );\r | |
| 26 | \r | |
| 27 | //\r | |
| 28 | // PCI I/O Support Function Prototypes\r | |
| 29 | //\r | |
| 30 | //\r | |
| 31 | //\r | |
| 32 | // Pci Io Protocol Interface\r | |
| 33 | //\r | |
| 34 | static EFI_PCI_IO_PROTOCOL PciIoInterface = {\r | |
| 35 | PciIoPollMem,\r | |
| 36 | PciIoPollIo,\r | |
| 37 | {\r | |
| 38 | PciIoMemRead,\r | |
| 39 | PciIoMemWrite\r | |
| 40 | },\r | |
| 41 | {\r | |
| 42 | PciIoIoRead,\r | |
| 43 | PciIoIoWrite\r | |
| 44 | },\r | |
| 45 | {\r | |
| 46 | PciIoConfigRead,\r | |
| 47 | PciIoConfigWrite\r | |
| 48 | },\r | |
| 49 | PciIoCopyMem,\r | |
| 50 | PciIoMap,\r | |
| 51 | PciIoUnmap,\r | |
| 52 | PciIoAllocateBuffer,\r | |
| 53 | PciIoFreeBuffer,\r | |
| 54 | PciIoFlush,\r | |
| 55 | PciIoGetLocation,\r | |
| 56 | PciIoAttributes,\r | |
| 57 | PciIoGetBarAttributes,\r | |
| 58 | PciIoSetBarAttributes,\r | |
| 59 | 0,\r | |
| 60 | NULL\r | |
| 61 | };\r | |
| 62 | \r | |
| 63 | STATIC\r | |
| 64 | EFI_STATUS\r | |
| 65 | ReportErrorStatusCode (\r | |
| 66 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 67 | IN EFI_STATUS_CODE_VALUE Code\r | |
| 68 | )\r | |
| bcd70414 | 69 | /**\r |
| ead42efc | 70 | \r |
| 71 | Routine Description:\r | |
| 72 | \r | |
| 73 | report a error Status code of PCI bus driver controller\r | |
| 74 | \r | |
| 75 | Arguments:\r | |
| 76 | \r | |
| 77 | Returns:\r | |
| 78 | \r | |
| 79 | None\r | |
| 80 | \r | |
| bcd70414 | 81 | **/\r |
| ead42efc | 82 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 83 | // TODO: Code - add argument and description to function comment\r | |
| 84 | {\r | |
| 85 | return REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
| 86 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
| 87 | Code,\r | |
| 88 | PciIoDevice->DevicePath\r | |
| 89 | );\r | |
| 90 | }\r | |
| 91 | \r | |
| 92 | EFI_STATUS\r | |
| 93 | InitializePciIoInstance (\r | |
| 94 | PCI_IO_DEVICE *PciIoDevice\r | |
| 95 | )\r | |
| bcd70414 | 96 | /**\r |
| ead42efc | 97 | \r |
| 98 | Routine Description:\r | |
| 99 | \r | |
| 100 | Initializes a PCI I/O Instance\r | |
| 101 | \r | |
| 102 | Arguments:\r | |
| 103 | \r | |
| 104 | Returns:\r | |
| 105 | \r | |
| 106 | None\r | |
| 107 | \r | |
| bcd70414 | 108 | **/\r |
| ead42efc | 109 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 110 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 111 | {\r | |
| 112 | CopyMem (&PciIoDevice->PciIo, &PciIoInterface, sizeof (EFI_PCI_IO_PROTOCOL));\r | |
| 113 | return EFI_SUCCESS;\r | |
| 114 | }\r | |
| 115 | \r | |
| 116 | EFI_STATUS\r | |
| 117 | PciIoVerifyBarAccess (\r | |
| 118 | PCI_IO_DEVICE *PciIoDevice,\r | |
| 119 | UINT8 BarIndex,\r | |
| 120 | PCI_BAR_TYPE Type,\r | |
| 121 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 122 | IN UINTN Count,\r | |
| 123 | UINT64 *Offset\r | |
| 124 | )\r | |
| bcd70414 | 125 | /**\r |
| ead42efc | 126 | \r |
| 127 | Routine Description:\r | |
| 128 | \r | |
| 129 | Verifies access to a PCI Base Address Register (BAR)\r | |
| 130 | \r | |
| 131 | Arguments:\r | |
| 132 | \r | |
| 133 | Returns:\r | |
| 134 | \r | |
| 135 | None\r | |
| 136 | \r | |
| bcd70414 | 137 | **/\r |
| ead42efc | 138 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 139 | // TODO: BarIndex - add argument and description to function comment\r | |
| 140 | // TODO: Type - add argument and description to function comment\r | |
| 141 | // TODO: Width - add argument and description to function comment\r | |
| 142 | // TODO: Count - add argument and description to function comment\r | |
| 143 | // TODO: Offset - add argument and description to function comment\r | |
| 144 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 145 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 146 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 147 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 148 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 149 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 150 | {\r | |
| 151 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 152 | return EFI_INVALID_PARAMETER;\r | |
| 153 | }\r | |
| 154 | \r | |
| 155 | if (BarIndex == EFI_PCI_IO_PASS_THROUGH_BAR) {\r | |
| 156 | return EFI_SUCCESS;\r | |
| 157 | }\r | |
| 158 | \r | |
| 159 | //\r | |
| 160 | // BarIndex 0-5 is legal\r | |
| 161 | //\r | |
| 162 | if (BarIndex >= PCI_MAX_BAR) {\r | |
| 163 | return EFI_INVALID_PARAMETER;\r | |
| 164 | }\r | |
| 165 | \r | |
| 166 | if (!CheckBarType (PciIoDevice, BarIndex, Type)) {\r | |
| 167 | return EFI_INVALID_PARAMETER;\r | |
| 168 | }\r | |
| 169 | \r | |
| 170 | //\r | |
| 171 | // If Width is EfiPciIoWidthFifoUintX then convert to EfiPciIoWidthUintX\r | |
| 172 | // If Width is EfiPciIoWidthFillUintX then convert to EfiPciIoWidthUintX\r | |
| 173 | //\r | |
| 174 | if (Width >= EfiPciWidthFifoUint8 && Width <= EfiPciWidthFifoUint64) {\r | |
| 175 | Count = 1;\r | |
| 176 | }\r | |
| 177 | \r | |
| 178 | Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & 0x03);\r | |
| 179 | \r | |
| 180 | if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PciIoDevice->PciBar[BarIndex].Length) {\r | |
| 181 | return EFI_INVALID_PARAMETER;\r | |
| 182 | }\r | |
| 183 | \r | |
| 184 | *Offset = *Offset + PciIoDevice->PciBar[BarIndex].BaseAddress;\r | |
| 185 | \r | |
| 186 | return EFI_SUCCESS;\r | |
| 187 | }\r | |
| 188 | \r | |
| 189 | EFI_STATUS\r | |
| 190 | PciIoVerifyConfigAccess (\r | |
| 191 | PCI_IO_DEVICE *PciIoDevice,\r | |
| 192 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 193 | IN UINTN Count,\r | |
| 194 | IN UINT64 *Offset\r | |
| 195 | )\r | |
| bcd70414 | 196 | /**\r |
| ead42efc | 197 | \r |
| 198 | Routine Description:\r | |
| 199 | \r | |
| 200 | Verifies access to a PCI Config Header\r | |
| 201 | \r | |
| 202 | Arguments:\r | |
| 203 | \r | |
| 204 | Returns:\r | |
| 205 | \r | |
| 206 | None\r | |
| 207 | \r | |
| bcd70414 | 208 | **/\r |
| ead42efc | 209 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 210 | // TODO: Width - add argument and description to function comment\r | |
| 211 | // TODO: Count - add argument and description to function comment\r | |
| 212 | // TODO: Offset - add argument and description to function comment\r | |
| 213 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 214 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 215 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 216 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 217 | {\r | |
| 218 | UINT64 ExtendOffset;\r | |
| 219 | \r | |
| 220 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 221 | return EFI_INVALID_PARAMETER;\r | |
| 222 | }\r | |
| 223 | \r | |
| 224 | //\r | |
| 225 | // If Width is EfiPciIoWidthFillUintX then convert to EfiPciIoWidthUintX\r | |
| 226 | //\r | |
| 227 | Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & 0x03);\r | |
| 228 | \r | |
| 229 | if (PciIoDevice->IsPciExp) {\r | |
| 230 | if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PCI_EXP_MAX_CONFIG_OFFSET) {\r | |
| 231 | return EFI_UNSUPPORTED;\r | |
| 232 | }\r | |
| 233 | \r | |
| 234 | ExtendOffset = LShiftU64 (*Offset, 32);\r | |
| 235 | *Offset = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, 0);\r | |
| 236 | *Offset = (*Offset) | ExtendOffset;\r | |
| 237 | \r | |
| 238 | } else {\r | |
| 239 | if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PCI_MAX_CONFIG_OFFSET) {\r | |
| 240 | return EFI_UNSUPPORTED;\r | |
| 241 | }\r | |
| 242 | \r | |
| 243 | *Offset = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, *Offset);\r | |
| 244 | }\r | |
| 245 | \r | |
| 246 | return EFI_SUCCESS;\r | |
| 247 | }\r | |
| 248 | \r | |
| 249 | EFI_STATUS\r | |
| 250 | EFIAPI\r | |
| 251 | PciIoPollMem (\r | |
| 252 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 253 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 254 | IN UINT8 BarIndex,\r | |
| 255 | IN UINT64 Offset,\r | |
| 256 | IN UINT64 Mask,\r | |
| 257 | IN UINT64 Value,\r | |
| 258 | IN UINT64 Delay,\r | |
| 259 | OUT UINT64 *Result\r | |
| 260 | )\r | |
| bcd70414 | 261 | /**\r |
| ead42efc | 262 | \r |
| 263 | Routine Description:\r | |
| 264 | \r | |
| 265 | Poll PCI Memmory\r | |
| 266 | \r | |
| 267 | Arguments:\r | |
| 268 | \r | |
| 269 | Returns:\r | |
| 270 | \r | |
| 271 | None\r | |
| 272 | \r | |
| bcd70414 | 273 | **/\r |
| ead42efc | 274 | // TODO: This - add argument and description to function comment\r |
| 275 | // TODO: Width - add argument and description to function comment\r | |
| 276 | // TODO: BarIndex - add argument and description to function comment\r | |
| 277 | // TODO: Offset - add argument and description to function comment\r | |
| 278 | // TODO: Mask - add argument and description to function comment\r | |
| 279 | // TODO: Value - add argument and description to function comment\r | |
| 280 | // TODO: Delay - add argument and description to function comment\r | |
| 281 | // TODO: Result - add argument and description to function comment\r | |
| 282 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 283 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 284 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 285 | {\r | |
| 286 | EFI_STATUS Status;\r | |
| 287 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 288 | \r | |
| 289 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 290 | \r | |
| 291 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 292 | return EFI_INVALID_PARAMETER;\r | |
| 293 | }\r | |
| 294 | \r | |
| 295 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, 1, &Offset);\r | |
| 296 | if (EFI_ERROR (Status)) {\r | |
| 297 | return EFI_UNSUPPORTED;\r | |
| 298 | }\r | |
| 299 | \r | |
| 300 | if (Width > EfiPciIoWidthUint64) {\r | |
| 301 | return EFI_INVALID_PARAMETER;\r | |
| 302 | }\r | |
| 303 | \r | |
| 304 | Status = PciIoDevice->PciRootBridgeIo->PollMem (\r | |
| 305 | PciIoDevice->PciRootBridgeIo,\r | |
| 306 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 307 | Offset,\r | |
| 308 | Mask,\r | |
| 309 | Value,\r | |
| 310 | Delay,\r | |
| 311 | Result\r | |
| 312 | );\r | |
| 313 | \r | |
| 314 | if (EFI_ERROR (Status)) {\r | |
| 315 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 316 | }\r | |
| 317 | \r | |
| 318 | return Status;\r | |
| 319 | }\r | |
| 320 | \r | |
| 321 | EFI_STATUS\r | |
| 322 | EFIAPI\r | |
| 323 | PciIoPollIo (\r | |
| 324 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 325 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 326 | IN UINT8 BarIndex,\r | |
| 327 | IN UINT64 Offset,\r | |
| 328 | IN UINT64 Mask,\r | |
| 329 | IN UINT64 Value,\r | |
| 330 | IN UINT64 Delay,\r | |
| 331 | OUT UINT64 *Result\r | |
| 332 | )\r | |
| bcd70414 | 333 | /**\r |
| ead42efc | 334 | \r |
| 335 | Routine Description:\r | |
| 336 | \r | |
| 337 | Poll PCI IO\r | |
| 338 | \r | |
| 339 | Arguments:\r | |
| 340 | \r | |
| 341 | Returns:\r | |
| 342 | \r | |
| 343 | None\r | |
| 344 | \r | |
| bcd70414 | 345 | **/\r |
| ead42efc | 346 | // TODO: This - add argument and description to function comment\r |
| 347 | // TODO: Width - add argument and description to function comment\r | |
| 348 | // TODO: BarIndex - add argument and description to function comment\r | |
| 349 | // TODO: Offset - add argument and description to function comment\r | |
| 350 | // TODO: Mask - add argument and description to function comment\r | |
| 351 | // TODO: Value - add argument and description to function comment\r | |
| 352 | // TODO: Delay - add argument and description to function comment\r | |
| 353 | // TODO: Result - add argument and description to function comment\r | |
| 354 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 355 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 356 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 357 | {\r | |
| 358 | EFI_STATUS Status;\r | |
| 359 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 360 | \r | |
| 361 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 362 | \r | |
| 363 | if (Width < 0 || Width > EfiPciIoWidthUint64) {\r | |
| 364 | return EFI_INVALID_PARAMETER;\r | |
| 365 | }\r | |
| 366 | \r | |
| 367 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, 1, &Offset);\r | |
| 368 | if (EFI_ERROR (Status)) {\r | |
| 369 | return EFI_UNSUPPORTED;\r | |
| 370 | }\r | |
| 371 | \r | |
| 372 | Status = PciIoDevice->PciRootBridgeIo->PollIo (\r | |
| 373 | PciIoDevice->PciRootBridgeIo,\r | |
| 374 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 375 | Offset,\r | |
| 376 | Mask,\r | |
| 377 | Value,\r | |
| 378 | Delay,\r | |
| 379 | Result\r | |
| 380 | );\r | |
| 381 | \r | |
| 382 | if (EFI_ERROR (Status)) {\r | |
| 383 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 384 | }\r | |
| 385 | \r | |
| 386 | return Status;\r | |
| 387 | }\r | |
| 388 | \r | |
| 389 | EFI_STATUS\r | |
| 390 | EFIAPI\r | |
| 391 | PciIoMemRead (\r | |
| 392 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 393 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 394 | IN UINT8 BarIndex,\r | |
| 395 | IN UINT64 Offset,\r | |
| 396 | IN UINTN Count,\r | |
| 397 | IN OUT VOID *Buffer\r | |
| 398 | )\r | |
| bcd70414 | 399 | /**\r |
| ead42efc | 400 | \r |
| 401 | Routine Description:\r | |
| 402 | \r | |
| 403 | Performs a PCI Memory Read Cycle\r | |
| 404 | \r | |
| 405 | Arguments:\r | |
| 406 | \r | |
| 407 | Returns:\r | |
| 408 | \r | |
| 409 | None\r | |
| 410 | \r | |
| bcd70414 | 411 | **/\r |
| ead42efc | 412 | // TODO: This - add argument and description to function comment\r |
| 413 | // TODO: Width - add argument and description to function comment\r | |
| 414 | // TODO: BarIndex - add argument and description to function comment\r | |
| 415 | // TODO: Offset - add argument and description to function comment\r | |
| 416 | // TODO: Count - add argument and description to function comment\r | |
| 417 | // TODO: Buffer - add argument and description to function comment\r | |
| 418 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 419 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 420 | {\r | |
| 421 | EFI_STATUS Status;\r | |
| 422 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 423 | \r | |
| 424 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 425 | \r | |
| 426 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 427 | return EFI_INVALID_PARAMETER;\r | |
| 428 | }\r | |
| 429 | \r | |
| 430 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);\r | |
| 431 | if (EFI_ERROR (Status)) {\r | |
| 432 | return EFI_UNSUPPORTED;\r | |
| 433 | }\r | |
| 434 | \r | |
| 435 | Status = PciIoDevice->PciRootBridgeIo->Mem.Read (\r | |
| 436 | PciIoDevice->PciRootBridgeIo,\r | |
| 437 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 438 | Offset,\r | |
| 439 | Count,\r | |
| 440 | Buffer\r | |
| 441 | );\r | |
| 442 | \r | |
| 443 | if (EFI_ERROR (Status)) {\r | |
| 444 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r | |
| 445 | }\r | |
| 446 | \r | |
| 447 | return Status;\r | |
| 448 | }\r | |
| 449 | \r | |
| 450 | EFI_STATUS\r | |
| 451 | EFIAPI\r | |
| 452 | PciIoMemWrite (\r | |
| 453 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 454 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 455 | IN UINT8 BarIndex,\r | |
| 456 | IN UINT64 Offset,\r | |
| 457 | IN UINTN Count,\r | |
| 458 | IN OUT VOID *Buffer\r | |
| 459 | )\r | |
| bcd70414 | 460 | /**\r |
| ead42efc | 461 | \r |
| 462 | Routine Description:\r | |
| 463 | \r | |
| 464 | Performs a PCI Memory Write Cycle\r | |
| 465 | \r | |
| 466 | Arguments:\r | |
| 467 | \r | |
| 468 | Returns:\r | |
| 469 | \r | |
| 470 | None\r | |
| 471 | \r | |
| bcd70414 | 472 | **/\r |
| ead42efc | 473 | // TODO: This - add argument and description to function comment\r |
| 474 | // TODO: Width - add argument and description to function comment\r | |
| 475 | // TODO: BarIndex - add argument and description to function comment\r | |
| 476 | // TODO: Offset - add argument and description to function comment\r | |
| 477 | // TODO: Count - add argument and description to function comment\r | |
| 478 | // TODO: Buffer - add argument and description to function comment\r | |
| 479 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 480 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 481 | {\r | |
| 482 | EFI_STATUS Status;\r | |
| 483 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 484 | \r | |
| 485 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 486 | \r | |
| 487 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 488 | return EFI_INVALID_PARAMETER;\r | |
| 489 | }\r | |
| 490 | \r | |
| 491 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);\r | |
| 492 | if (EFI_ERROR (Status)) {\r | |
| 493 | return EFI_UNSUPPORTED;\r | |
| 494 | }\r | |
| 495 | \r | |
| 496 | Status = PciIoDevice->PciRootBridgeIo->Mem.Write (\r | |
| 497 | PciIoDevice->PciRootBridgeIo,\r | |
| 498 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 499 | Offset,\r | |
| 500 | Count,\r | |
| 501 | Buffer\r | |
| 502 | );\r | |
| 503 | \r | |
| 504 | if (EFI_ERROR (Status)) {\r | |
| 505 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r | |
| 506 | }\r | |
| 507 | \r | |
| 508 | return Status;\r | |
| 509 | }\r | |
| 510 | \r | |
| 511 | EFI_STATUS\r | |
| 512 | EFIAPI\r | |
| 513 | PciIoIoRead (\r | |
| 514 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 515 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 516 | IN UINT8 BarIndex,\r | |
| 517 | IN UINT64 Offset,\r | |
| 518 | IN UINTN Count,\r | |
| 519 | IN OUT VOID *Buffer\r | |
| 520 | )\r | |
| bcd70414 | 521 | /**\r |
| ead42efc | 522 | \r |
| 523 | Routine Description:\r | |
| 524 | \r | |
| 525 | Performs a PCI I/O Read Cycle\r | |
| 526 | \r | |
| 527 | Arguments:\r | |
| 528 | \r | |
| 529 | Returns:\r | |
| 530 | \r | |
| 531 | None\r | |
| 532 | \r | |
| bcd70414 | 533 | **/\r |
| ead42efc | 534 | // TODO: This - add argument and description to function comment\r |
| 535 | // TODO: Width - add argument and description to function comment\r | |
| 536 | // TODO: BarIndex - add argument and description to function comment\r | |
| 537 | // TODO: Offset - add argument and description to function comment\r | |
| 538 | // TODO: Count - add argument and description to function comment\r | |
| 539 | // TODO: Buffer - add argument and description to function comment\r | |
| 540 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 541 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 542 | {\r | |
| 543 | EFI_STATUS Status;\r | |
| 544 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 545 | \r | |
| 546 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 547 | \r | |
| 548 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 549 | return EFI_INVALID_PARAMETER;\r | |
| 550 | }\r | |
| 551 | \r | |
| 552 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);\r | |
| 553 | if (EFI_ERROR (Status)) {\r | |
| 554 | return EFI_UNSUPPORTED;\r | |
| 555 | }\r | |
| 556 | \r | |
| 557 | Status = PciIoDevice->PciRootBridgeIo->Io.Read (\r | |
| 558 | PciIoDevice->PciRootBridgeIo,\r | |
| 559 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 560 | Offset,\r | |
| 561 | Count,\r | |
| 562 | Buffer\r | |
| 563 | );\r | |
| 564 | \r | |
| 565 | if (EFI_ERROR (Status)) {\r | |
| 566 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r | |
| 567 | }\r | |
| 568 | \r | |
| 569 | return Status;\r | |
| 570 | }\r | |
| 571 | \r | |
| 572 | EFI_STATUS\r | |
| 573 | EFIAPI\r | |
| 574 | PciIoIoWrite (\r | |
| 575 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 576 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 577 | IN UINT8 BarIndex,\r | |
| 578 | IN UINT64 Offset,\r | |
| 579 | IN UINTN Count,\r | |
| 580 | IN OUT VOID *Buffer\r | |
| 581 | )\r | |
| bcd70414 | 582 | /**\r |
| ead42efc | 583 | \r |
| 584 | Routine Description:\r | |
| 585 | \r | |
| 586 | Performs a PCI I/O Write Cycle\r | |
| 587 | \r | |
| 588 | Arguments:\r | |
| 589 | \r | |
| 590 | Returns:\r | |
| 591 | \r | |
| 592 | None\r | |
| 593 | \r | |
| bcd70414 | 594 | **/\r |
| ead42efc | 595 | // TODO: This - add argument and description to function comment\r |
| 596 | // TODO: Width - add argument and description to function comment\r | |
| 597 | // TODO: BarIndex - add argument and description to function comment\r | |
| 598 | // TODO: Offset - add argument and description to function comment\r | |
| 599 | // TODO: Count - add argument and description to function comment\r | |
| 600 | // TODO: Buffer - add argument and description to function comment\r | |
| 601 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 602 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 603 | {\r | |
| 604 | EFI_STATUS Status;\r | |
| 605 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 606 | \r | |
| 607 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 608 | \r | |
| 609 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 610 | return EFI_INVALID_PARAMETER;\r | |
| 611 | }\r | |
| 612 | \r | |
| 613 | Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);\r | |
| 614 | if (EFI_ERROR (Status)) {\r | |
| 615 | return EFI_UNSUPPORTED;\r | |
| 616 | }\r | |
| 617 | \r | |
| 618 | Status = PciIoDevice->PciRootBridgeIo->Io.Write (\r | |
| 619 | PciIoDevice->PciRootBridgeIo,\r | |
| 620 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 621 | Offset,\r | |
| 622 | Count,\r | |
| 623 | Buffer\r | |
| 624 | );\r | |
| 625 | \r | |
| 626 | if (EFI_ERROR (Status)) {\r | |
| 627 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r | |
| 628 | }\r | |
| 629 | \r | |
| 630 | return Status;\r | |
| 631 | }\r | |
| 632 | \r | |
| 633 | EFI_STATUS\r | |
| 634 | EFIAPI\r | |
| 635 | PciIoConfigRead (\r | |
| 636 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 637 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 638 | IN UINT32 Offset,\r | |
| 639 | IN UINTN Count,\r | |
| 640 | IN OUT VOID *Buffer\r | |
| 641 | )\r | |
| bcd70414 | 642 | /**\r |
| ead42efc | 643 | \r |
| 644 | Routine Description:\r | |
| 645 | \r | |
| 646 | Performs a PCI Configuration Read Cycle\r | |
| 647 | \r | |
| 648 | Arguments:\r | |
| 649 | \r | |
| 650 | Returns:\r | |
| 651 | \r | |
| 652 | None\r | |
| 653 | \r | |
| bcd70414 | 654 | **/\r |
| ead42efc | 655 | // TODO: This - add argument and description to function comment\r |
| 656 | // TODO: Width - add argument and description to function comment\r | |
| 657 | // TODO: Offset - add argument and description to function comment\r | |
| 658 | // TODO: Count - add argument and description to function comment\r | |
| 659 | // TODO: Buffer - add argument and description to function comment\r | |
| 660 | {\r | |
| 661 | EFI_STATUS Status;\r | |
| 662 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 663 | UINT64 Address;\r | |
| 664 | \r | |
| 665 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 666 | \r | |
| 667 | Address = Offset;\r | |
| 668 | Status = PciIoVerifyConfigAccess (PciIoDevice, Width, Count, &Address);\r | |
| 669 | if (EFI_ERROR (Status)) {\r | |
| 670 | return Status;\r | |
| 671 | }\r | |
| 672 | \r | |
| 673 | Status = PciIoDevice->PciRootBridgeIo->Pci.Read (\r | |
| 674 | PciIoDevice->PciRootBridgeIo,\r | |
| 675 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 676 | Address,\r | |
| 677 | Count,\r | |
| 678 | Buffer\r | |
| 679 | );\r | |
| 680 | \r | |
| 681 | if (EFI_ERROR (Status)) {\r | |
| 682 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r | |
| 683 | }\r | |
| 684 | \r | |
| 685 | return Status;\r | |
| 686 | }\r | |
| 687 | \r | |
| 688 | EFI_STATUS\r | |
| 689 | EFIAPI\r | |
| 690 | PciIoConfigWrite (\r | |
| 691 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 692 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 693 | IN UINT32 Offset,\r | |
| 694 | IN UINTN Count,\r | |
| 695 | IN OUT VOID *Buffer\r | |
| 696 | )\r | |
| bcd70414 | 697 | /**\r |
| ead42efc | 698 | \r |
| 699 | Routine Description:\r | |
| 700 | \r | |
| 701 | Performs a PCI Configuration Write Cycle\r | |
| 702 | \r | |
| 703 | Arguments:\r | |
| 704 | \r | |
| 705 | Returns:\r | |
| 706 | \r | |
| 707 | None\r | |
| 708 | \r | |
| bcd70414 | 709 | **/\r |
| ead42efc | 710 | // TODO: This - add argument and description to function comment\r |
| 711 | // TODO: Width - add argument and description to function comment\r | |
| 712 | // TODO: Offset - add argument and description to function comment\r | |
| 713 | // TODO: Count - add argument and description to function comment\r | |
| 714 | // TODO: Buffer - add argument and description to function comment\r | |
| 715 | {\r | |
| 716 | EFI_STATUS Status;\r | |
| 717 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 718 | UINT64 Address;\r | |
| 719 | \r | |
| 720 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 721 | \r | |
| 722 | Address = Offset;\r | |
| 723 | Status = PciIoVerifyConfigAccess (PciIoDevice, Width, Count, &Address);\r | |
| 724 | if (EFI_ERROR (Status)) {\r | |
| 725 | return Status;\r | |
| 726 | }\r | |
| 727 | \r | |
| 728 | Status = PciIoDevice->PciRootBridgeIo->Pci.Write (\r | |
| 729 | PciIoDevice->PciRootBridgeIo,\r | |
| 730 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 731 | Address,\r | |
| 732 | Count,\r | |
| 733 | Buffer\r | |
| 734 | );\r | |
| 735 | \r | |
| 736 | if (EFI_ERROR (Status)) {\r | |
| 737 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r | |
| 738 | }\r | |
| 739 | \r | |
| 740 | return Status;\r | |
| 741 | }\r | |
| 742 | \r | |
| 743 | EFI_STATUS\r | |
| 744 | EFIAPI\r | |
| 745 | PciIoCopyMem (\r | |
| 746 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 747 | IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r | |
| 748 | IN UINT8 DestBarIndex,\r | |
| 749 | IN UINT64 DestOffset,\r | |
| 750 | IN UINT8 SrcBarIndex,\r | |
| 751 | IN UINT64 SrcOffset,\r | |
| 752 | IN UINTN Count\r | |
| 753 | )\r | |
| bcd70414 | 754 | /**\r |
| ead42efc | 755 | \r |
| 756 | Routine Description:\r | |
| 757 | \r | |
| 758 | Copy PCI Memory\r | |
| 759 | \r | |
| 760 | Arguments:\r | |
| 761 | \r | |
| 762 | Returns:\r | |
| 763 | \r | |
| 764 | None\r | |
| 765 | \r | |
| bcd70414 | 766 | **/\r |
| ead42efc | 767 | // TODO: This - add argument and description to function comment\r |
| 768 | // TODO: Width - add argument and description to function comment\r | |
| 769 | // TODO: DestBarIndex - add argument and description to function comment\r | |
| 770 | // TODO: DestOffset - add argument and description to function comment\r | |
| 771 | // TODO: SrcBarIndex - add argument and description to function comment\r | |
| 772 | // TODO: SrcOffset - add argument and description to function comment\r | |
| 773 | // TODO: Count - add argument and description to function comment\r | |
| 774 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 775 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 776 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 777 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 778 | {\r | |
| 779 | EFI_STATUS Status;\r | |
| 780 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 781 | \r | |
| 782 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 783 | \r | |
| 784 | if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r | |
| 785 | return EFI_INVALID_PARAMETER;\r | |
| 786 | }\r | |
| 787 | \r | |
| 788 | if (Width == EfiPciIoWidthFifoUint8 ||\r | |
| 789 | Width == EfiPciIoWidthFifoUint16 ||\r | |
| 790 | Width == EfiPciIoWidthFifoUint32 ||\r | |
| 791 | Width == EfiPciIoWidthFifoUint64 ||\r | |
| 792 | Width == EfiPciIoWidthFillUint8 ||\r | |
| 793 | Width == EfiPciIoWidthFillUint16 ||\r | |
| 794 | Width == EfiPciIoWidthFillUint32 ||\r | |
| 795 | Width == EfiPciIoWidthFillUint64) {\r | |
| 796 | return EFI_INVALID_PARAMETER;\r | |
| 797 | }\r | |
| 798 | \r | |
| 799 | Status = PciIoVerifyBarAccess (PciIoDevice, DestBarIndex, PciBarTypeMem, Width, Count, &DestOffset);\r | |
| 800 | if (EFI_ERROR (Status)) {\r | |
| 801 | return EFI_UNSUPPORTED;\r | |
| 802 | }\r | |
| 803 | \r | |
| 804 | Status = PciIoVerifyBarAccess (PciIoDevice, SrcBarIndex, PciBarTypeMem, Width, Count, &SrcOffset);\r | |
| 805 | if (EFI_ERROR (Status)) {\r | |
| 806 | return EFI_UNSUPPORTED;\r | |
| 807 | }\r | |
| 808 | \r | |
| 809 | Status = PciIoDevice->PciRootBridgeIo->CopyMem (\r | |
| 810 | PciIoDevice->PciRootBridgeIo,\r | |
| 811 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r | |
| 812 | DestOffset,\r | |
| 813 | SrcOffset,\r | |
| 814 | Count\r | |
| 815 | );\r | |
| 816 | \r | |
| 817 | if (EFI_ERROR (Status)) {\r | |
| 818 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 819 | }\r | |
| 820 | \r | |
| 821 | return Status;\r | |
| 822 | }\r | |
| 823 | \r | |
| 824 | EFI_STATUS\r | |
| 825 | EFIAPI\r | |
| 826 | PciIoMap (\r | |
| 827 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 828 | IN EFI_PCI_IO_PROTOCOL_OPERATION Operation,\r | |
| 829 | IN VOID *HostAddress,\r | |
| 830 | IN OUT UINTN *NumberOfBytes,\r | |
| 831 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r | |
| 832 | OUT VOID **Mapping\r | |
| 833 | )\r | |
| bcd70414 | 834 | /**\r |
| ead42efc | 835 | \r |
| 836 | Routine Description:\r | |
| 837 | \r | |
| 838 | Maps a memory region for DMA\r | |
| 839 | \r | |
| 840 | Arguments:\r | |
| 841 | \r | |
| 842 | Returns:\r | |
| 843 | \r | |
| 844 | None\r | |
| 845 | \r | |
| bcd70414 | 846 | **/\r |
| ead42efc | 847 | // TODO: This - add argument and description to function comment\r |
| 848 | // TODO: Operation - add argument and description to function comment\r | |
| 849 | // TODO: HostAddress - add argument and description to function comment\r | |
| 850 | // TODO: NumberOfBytes - add argument and description to function comment\r | |
| 851 | // TODO: DeviceAddress - add argument and description to function comment\r | |
| 852 | // TODO: Mapping - add argument and description to function comment\r | |
| 853 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 854 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 855 | {\r | |
| 856 | EFI_STATUS Status;\r | |
| 857 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 858 | \r | |
| 859 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 860 | \r | |
| 861 | if (Operation < 0 || Operation >= EfiPciIoOperationMaximum) {\r | |
| 862 | return EFI_INVALID_PARAMETER;\r | |
| 863 | }\r | |
| 864 | \r | |
| 865 | if (HostAddress == NULL || NumberOfBytes == NULL || DeviceAddress == NULL || Mapping == NULL) {\r | |
| 866 | return EFI_INVALID_PARAMETER;\r | |
| 867 | }\r | |
| 868 | \r | |
| 869 | if (PciIoDevice->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) {\r | |
| 870 | Operation = (EFI_PCI_IO_PROTOCOL_OPERATION) (Operation + EfiPciOperationBusMasterRead64);\r | |
| 871 | }\r | |
| 872 | \r | |
| 873 | Status = PciIoDevice->PciRootBridgeIo->Map (\r | |
| 874 | PciIoDevice->PciRootBridgeIo,\r | |
| 875 | (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION) Operation,\r | |
| 876 | HostAddress,\r | |
| 877 | NumberOfBytes,\r | |
| 878 | DeviceAddress,\r | |
| 879 | Mapping\r | |
| 880 | );\r | |
| 881 | \r | |
| 882 | if (EFI_ERROR (Status)) {\r | |
| 883 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 884 | }\r | |
| 885 | \r | |
| 886 | return Status;\r | |
| 887 | }\r | |
| 888 | \r | |
| 889 | EFI_STATUS\r | |
| 890 | EFIAPI\r | |
| 891 | PciIoUnmap (\r | |
| 892 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 893 | IN VOID *Mapping\r | |
| 894 | )\r | |
| bcd70414 | 895 | /**\r |
| ead42efc | 896 | \r |
| 897 | Routine Description:\r | |
| 898 | \r | |
| 899 | Unmaps a memory region for DMA\r | |
| 900 | \r | |
| 901 | Arguments:\r | |
| 902 | \r | |
| 903 | Returns:\r | |
| 904 | \r | |
| 905 | None\r | |
| 906 | \r | |
| bcd70414 | 907 | **/\r |
| ead42efc | 908 | // TODO: This - add argument and description to function comment\r |
| 909 | // TODO: Mapping - add argument and description to function comment\r | |
| 910 | {\r | |
| 911 | EFI_STATUS Status;\r | |
| 912 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 913 | \r | |
| 914 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 915 | \r | |
| 916 | Status = PciIoDevice->PciRootBridgeIo->Unmap (\r | |
| 917 | PciIoDevice->PciRootBridgeIo,\r | |
| 918 | Mapping\r | |
| 919 | );\r | |
| 920 | \r | |
| 921 | if (EFI_ERROR (Status)) {\r | |
| 922 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 923 | }\r | |
| 924 | \r | |
| 925 | return Status;\r | |
| 926 | }\r | |
| 927 | \r | |
| 928 | EFI_STATUS\r | |
| 929 | EFIAPI\r | |
| 930 | PciIoAllocateBuffer (\r | |
| 931 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 932 | IN EFI_ALLOCATE_TYPE Type,\r | |
| 933 | IN EFI_MEMORY_TYPE MemoryType,\r | |
| 934 | IN UINTN Pages,\r | |
| 935 | OUT VOID **HostAddress,\r | |
| 936 | IN UINT64 Attributes\r | |
| 937 | )\r | |
| bcd70414 | 938 | /**\r |
| ead42efc | 939 | \r |
| 940 | Routine Description:\r | |
| 941 | \r | |
| 942 | Allocates a common buffer for DMA\r | |
| 943 | \r | |
| 944 | Arguments:\r | |
| 945 | \r | |
| 946 | Returns:\r | |
| 947 | \r | |
| 948 | None\r | |
| 949 | \r | |
| bcd70414 | 950 | **/\r |
| ead42efc | 951 | // TODO: This - add argument and description to function comment\r |
| 952 | // TODO: Type - add argument and description to function comment\r | |
| 953 | // TODO: MemoryType - add argument and description to function comment\r | |
| 954 | // TODO: Pages - add argument and description to function comment\r | |
| 955 | // TODO: HostAddress - add argument and description to function comment\r | |
| 956 | // TODO: Attributes - add argument and description to function comment\r | |
| 957 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 958 | {\r | |
| 959 | EFI_STATUS Status;\r | |
| 960 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 961 | \r | |
| 962 | if (Attributes &\r | |
| 963 | (~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE | EFI_PCI_ATTRIBUTE_MEMORY_CACHED))) {\r | |
| 964 | return EFI_UNSUPPORTED;\r | |
| 965 | }\r | |
| 966 | \r | |
| 967 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 968 | \r | |
| 969 | if (PciIoDevice->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) {\r | |
| 970 | Attributes |= EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE;\r | |
| 971 | }\r | |
| 972 | \r | |
| 973 | Status = PciIoDevice->PciRootBridgeIo->AllocateBuffer (\r | |
| 974 | PciIoDevice->PciRootBridgeIo,\r | |
| 975 | Type,\r | |
| 976 | MemoryType,\r | |
| 977 | Pages,\r | |
| 978 | HostAddress,\r | |
| 979 | Attributes\r | |
| 980 | );\r | |
| 981 | \r | |
| 982 | if (EFI_ERROR (Status)) {\r | |
| 983 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 984 | }\r | |
| 985 | \r | |
| 986 | return Status;\r | |
| 987 | }\r | |
| 988 | \r | |
| 989 | EFI_STATUS\r | |
| 990 | EFIAPI\r | |
| 991 | PciIoFreeBuffer (\r | |
| 992 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 993 | IN UINTN Pages,\r | |
| 994 | IN VOID *HostAddress\r | |
| 995 | )\r | |
| bcd70414 | 996 | /**\r |
| ead42efc | 997 | \r |
| 998 | Routine Description:\r | |
| 999 | \r | |
| 1000 | Frees a common buffer \r | |
| 1001 | \r | |
| 1002 | Arguments:\r | |
| 1003 | \r | |
| 1004 | Returns:\r | |
| 1005 | \r | |
| 1006 | None\r | |
| 1007 | \r | |
| bcd70414 | 1008 | **/\r |
| ead42efc | 1009 | // TODO: This - add argument and description to function comment\r |
| 1010 | // TODO: Pages - add argument and description to function comment\r | |
| 1011 | // TODO: HostAddress - add argument and description to function comment\r | |
| 1012 | {\r | |
| 1013 | EFI_STATUS Status;\r | |
| 1014 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1015 | \r | |
| 1016 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1017 | \r | |
| 1018 | Status = PciIoDevice->PciRootBridgeIo->FreeBuffer (\r | |
| 1019 | PciIoDevice->PciRootBridgeIo,\r | |
| 1020 | Pages,\r | |
| 1021 | HostAddress\r | |
| 1022 | );\r | |
| 1023 | \r | |
| 1024 | if (EFI_ERROR (Status)) {\r | |
| 1025 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 1026 | }\r | |
| 1027 | \r | |
| 1028 | return Status;\r | |
| 1029 | }\r | |
| 1030 | \r | |
| 1031 | EFI_STATUS\r | |
| 1032 | EFIAPI\r | |
| 1033 | PciIoFlush (\r | |
| 1034 | IN EFI_PCI_IO_PROTOCOL *This\r | |
| 1035 | )\r | |
| bcd70414 | 1036 | /**\r |
| ead42efc | 1037 | \r |
| 1038 | Routine Description:\r | |
| 1039 | \r | |
| 1040 | Flushes a DMA buffer\r | |
| 1041 | \r | |
| 1042 | Arguments:\r | |
| 1043 | \r | |
| 1044 | Returns:\r | |
| 1045 | \r | |
| 1046 | None\r | |
| 1047 | \r | |
| bcd70414 | 1048 | **/\r |
| ead42efc | 1049 | // TODO: This - add argument and description to function comment\r |
| 1050 | {\r | |
| 1051 | EFI_STATUS Status;\r | |
| 1052 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1053 | \r | |
| 1054 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1055 | \r | |
| 1056 | Status = PciIoDevice->PciRootBridgeIo->Flush (\r | |
| 1057 | PciIoDevice->PciRootBridgeIo\r | |
| 1058 | );\r | |
| 1059 | if (EFI_ERROR (Status)) {\r | |
| 1060 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 1061 | }\r | |
| 1062 | \r | |
| 1063 | return Status;\r | |
| 1064 | }\r | |
| 1065 | \r | |
| 1066 | EFI_STATUS\r | |
| 1067 | EFIAPI\r | |
| 1068 | PciIoGetLocation (\r | |
| 1069 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 1070 | OUT UINTN *Segment,\r | |
| 1071 | OUT UINTN *Bus,\r | |
| 1072 | OUT UINTN *Device,\r | |
| 1073 | OUT UINTN *Function\r | |
| 1074 | )\r | |
| bcd70414 | 1075 | /**\r |
| ead42efc | 1076 | \r |
| 1077 | Routine Description:\r | |
| 1078 | \r | |
| 1079 | Gets a PCI device's current bus number, device number, and function number.\r | |
| 1080 | \r | |
| 1081 | Arguments:\r | |
| 1082 | \r | |
| 1083 | Returns:\r | |
| 1084 | \r | |
| 1085 | None\r | |
| 1086 | \r | |
| bcd70414 | 1087 | **/\r |
| ead42efc | 1088 | // TODO: This - add argument and description to function comment\r |
| 1089 | // TODO: Segment - add argument and description to function comment\r | |
| 1090 | // TODO: Bus - add argument and description to function comment\r | |
| 1091 | // TODO: Device - add argument and description to function comment\r | |
| 1092 | // TODO: Function - add argument and description to function comment\r | |
| 1093 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1094 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1095 | {\r | |
| 1096 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1097 | \r | |
| 1098 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1099 | \r | |
| 1100 | if (Segment == NULL || Bus == NULL || Device == NULL || Function == NULL) {\r | |
| 1101 | return EFI_INVALID_PARAMETER;\r | |
| 1102 | }\r | |
| 1103 | \r | |
| 1104 | *Segment = PciIoDevice->PciRootBridgeIo->SegmentNumber;\r | |
| 1105 | *Bus = PciIoDevice->BusNumber;\r | |
| 1106 | *Device = PciIoDevice->DeviceNumber;\r | |
| 1107 | *Function = PciIoDevice->FunctionNumber;\r | |
| 1108 | \r | |
| 1109 | return EFI_SUCCESS;\r | |
| 1110 | }\r | |
| 1111 | \r | |
| 1112 | BOOLEAN\r | |
| 1113 | CheckBarType (\r | |
| 1114 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 1115 | UINT8 BarIndex,\r | |
| 1116 | PCI_BAR_TYPE BarType\r | |
| 1117 | )\r | |
| bcd70414 | 1118 | /**\r |
| ead42efc | 1119 | \r |
| 1120 | Routine Description:\r | |
| 1121 | \r | |
| 1122 | Sets a PCI controllers attributes on a resource range\r | |
| 1123 | \r | |
| 1124 | Arguments:\r | |
| 1125 | \r | |
| 1126 | Returns:\r | |
| 1127 | \r | |
| 1128 | None\r | |
| 1129 | \r | |
| bcd70414 | 1130 | **/\r |
| ead42efc | 1131 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 1132 | // TODO: BarIndex - add argument and description to function comment\r | |
| 1133 | // TODO: BarType - add argument and description to function comment\r | |
| 1134 | {\r | |
| 1135 | switch (BarType) {\r | |
| 1136 | \r | |
| 1137 | case PciBarTypeMem:\r | |
| 1138 | \r | |
| 1139 | if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeMem32 &&\r | |
| 1140 | PciIoDevice->PciBar[BarIndex].BarType != PciBarTypePMem32 &&\r | |
| 1141 | PciIoDevice->PciBar[BarIndex].BarType != PciBarTypePMem64 &&\r | |
| 1142 | PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeMem64 ) {\r | |
| 1143 | return FALSE;\r | |
| 1144 | }\r | |
| 1145 | \r | |
| 1146 | return TRUE;\r | |
| 1147 | \r | |
| 1148 | case PciBarTypeIo:\r | |
| 1149 | if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeIo32 &&\r | |
| 1150 | PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeIo16){\r | |
| 1151 | return FALSE;\r | |
| 1152 | }\r | |
| 1153 | \r | |
| 1154 | return TRUE;\r | |
| 1155 | \r | |
| 1156 | default:\r | |
| 1157 | break;\r | |
| 1158 | }\r | |
| 1159 | \r | |
| 1160 | return FALSE;\r | |
| 1161 | }\r | |
| 1162 | \r | |
| 1163 | EFI_STATUS\r | |
| 1164 | ModifyRootBridgeAttributes (\r | |
| 1165 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 1166 | IN UINT64 Attributes,\r | |
| 1167 | IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation\r | |
| 1168 | )\r | |
| bcd70414 | 1169 | /**\r |
| ead42efc | 1170 | \r |
| 1171 | Routine Description:\r | |
| 1172 | \r | |
| 1173 | Set new attributes to a Root Bridge\r | |
| 1174 | \r | |
| 1175 | Arguments:\r | |
| 1176 | \r | |
| 1177 | Returns:\r | |
| 1178 | \r | |
| 1179 | None\r | |
| 1180 | \r | |
| bcd70414 | 1181 | **/\r |
| ead42efc | 1182 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 1183 | // TODO: Attributes - add argument and description to function comment\r | |
| 1184 | // TODO: Operation - add argument and description to function comment\r | |
| 1185 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1186 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1187 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1188 | {\r | |
| 1189 | UINT64 PciRootBridgeSupports;\r | |
| 1190 | UINT64 PciRootBridgeAttributes;\r | |
| 1191 | UINT64 NewPciRootBridgeAttributes;\r | |
| 1192 | EFI_STATUS Status;\r | |
| 1193 | \r | |
| 1194 | //\r | |
| 1195 | // Get the current attributes of this PCI device's PCI Root Bridge\r | |
| 1196 | //\r | |
| 1197 | Status = PciIoDevice->PciRootBridgeIo->GetAttributes (\r | |
| 1198 | PciIoDevice->PciRootBridgeIo,\r | |
| 1199 | &PciRootBridgeSupports,\r | |
| 1200 | &PciRootBridgeAttributes\r | |
| 1201 | );\r | |
| 1202 | if (EFI_ERROR (Status)) {\r | |
| 1203 | return EFI_UNSUPPORTED;\r | |
| 1204 | }\r | |
| 1205 | \r | |
| 1206 | //\r | |
| 1207 | // Record the new attribute of the Root Bridge\r | |
| 1208 | //\r | |
| 1209 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1210 | NewPciRootBridgeAttributes = PciRootBridgeAttributes | Attributes;\r | |
| 1211 | } else {\r | |
| 1212 | NewPciRootBridgeAttributes = PciRootBridgeAttributes & (~Attributes);\r | |
| 1213 | }\r | |
| 1214 | \r | |
| 1215 | //\r | |
| 1216 | // Call the PCI Root Bridge to attempt to modify the attributes\r | |
| 1217 | //\r | |
| 1218 | if (NewPciRootBridgeAttributes ^ PciRootBridgeAttributes) {\r | |
| 1219 | \r | |
| 1220 | Status = PciIoDevice->PciRootBridgeIo->SetAttributes (\r | |
| 1221 | PciIoDevice->PciRootBridgeIo,\r | |
| 1222 | NewPciRootBridgeAttributes,\r | |
| 1223 | NULL,\r | |
| 1224 | NULL\r | |
| 1225 | );\r | |
| 1226 | if (EFI_ERROR (Status)) {\r | |
| 1227 | //\r | |
| 1228 | // The PCI Root Bridge could not modify the attributes, so return the error.\r | |
| 1229 | //\r | |
| 1230 | return EFI_UNSUPPORTED;\r | |
| 1231 | }\r | |
| 1232 | }\r | |
| 1233 | \r | |
| 1234 | //\r | |
| 1235 | // Also update the attributes for this Root Bridge structure\r | |
| 1236 | //\r | |
| 1237 | PciIoDevice->Attributes = NewPciRootBridgeAttributes;\r | |
| 1238 | return EFI_SUCCESS;\r | |
| 1239 | \r | |
| 1240 | }\r | |
| 1241 | \r | |
| 1242 | EFI_STATUS\r | |
| 1243 | SupportPaletteSnoopAttributes (\r | |
| 1244 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 1245 | IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation\r | |
| 1246 | )\r | |
| bcd70414 | 1247 | /**\r |
| ead42efc | 1248 | \r |
| 1249 | Routine Description:\r | |
| 1250 | \r | |
| 1251 | Check whether this device can be enable/disable to snoop\r | |
| 1252 | \r | |
| 1253 | Arguments:\r | |
| 1254 | \r | |
| 1255 | Returns:\r | |
| 1256 | \r | |
| 1257 | None\r | |
| 1258 | \r | |
| bcd70414 | 1259 | **/\r |
| ead42efc | 1260 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 1261 | // TODO: Operation - add argument and description to function comment\r | |
| 1262 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1263 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1264 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1265 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1266 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1267 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1268 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1269 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1270 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1271 | {\r | |
| 1272 | PCI_IO_DEVICE *Temp;\r | |
| 1273 | UINT16 VGACommand;\r | |
| 1274 | \r | |
| 1275 | //\r | |
| 1276 | // Snoop attribute can be only modified by GFX\r | |
| 1277 | //\r | |
| 1278 | if (!IS_PCI_GFX (&PciIoDevice->Pci)) {\r | |
| 1279 | return EFI_UNSUPPORTED;\r | |
| 1280 | }\r | |
| 1281 | \r | |
| 1282 | //\r | |
| 1283 | // Get the boot VGA on the same segement\r | |
| 1284 | //\r | |
| 1285 | Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice);\r | |
| 1286 | \r | |
| 1287 | if (!Temp) {\r | |
| 1288 | //\r | |
| 1289 | // If there is no VGA device on the segement, set\r | |
| 1290 | // this graphics card to decode the palette range\r | |
| 1291 | //\r | |
| 1292 | return EFI_SUCCESS;\r | |
| 1293 | }\r | |
| 1294 | \r | |
| 1295 | //\r | |
| 1296 | // Check these two agents are on the same path\r | |
| 1297 | //\r | |
| 1298 | if (!PciDevicesOnTheSamePath (Temp, PciIoDevice)) {\r | |
| 1299 | //\r | |
| 1300 | // they are not on the same path, so snoop can be enabled or disabled\r | |
| 1301 | //\r | |
| 1302 | return EFI_SUCCESS;\r | |
| 1303 | }\r | |
| 1304 | //\r | |
| 1305 | // Check if they are on the same bus\r | |
| 1306 | //\r | |
| 1307 | if (Temp->Parent == PciIoDevice->Parent) {\r | |
| 1308 | \r | |
| 1309 | PciReadCommandRegister (Temp, &VGACommand);\r | |
| 1310 | \r | |
| 1311 | //\r | |
| 1312 | // If they are on the same bus, either one can\r | |
| 1313 | // be set to snoop, the other set to decode\r | |
| 1314 | //\r | |
| 1315 | if (VGACommand & EFI_PCI_COMMAND_VGA_PALETTE_SNOOP) {\r | |
| 1316 | //\r | |
| 1317 | // VGA has set to snoop, so GFX can be only set to disable snoop\r | |
| 1318 | //\r | |
| 1319 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1320 | return EFI_UNSUPPORTED;\r | |
| 1321 | }\r | |
| 1322 | } else {\r | |
| 1323 | //\r | |
| 1324 | // VGA has disabled to snoop, so GFX can be only enabled\r | |
| 1325 | //\r | |
| 1326 | if (Operation == EfiPciIoAttributeOperationDisable) {\r | |
| 1327 | return EFI_UNSUPPORTED;\r | |
| 1328 | }\r | |
| 1329 | }\r | |
| 1330 | \r | |
| 1331 | return EFI_SUCCESS;\r | |
| 1332 | }\r | |
| 1333 | \r | |
| 1334 | //\r | |
| 1335 | // If they are on the same path but on the different bus\r | |
| 1336 | // The first agent is set to snoop, the second one set to\r | |
| 1337 | // decode\r | |
| 1338 | //\r | |
| 1339 | \r | |
| 1340 | if (Temp->BusNumber < PciIoDevice->BusNumber) {\r | |
| 1341 | //\r | |
| 1342 | // GFX should be set to decode\r | |
| 1343 | //\r | |
| 1344 | if (Operation == EfiPciIoAttributeOperationDisable) {\r | |
| 1345 | PciEnableCommandRegister (Temp, EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r | |
| 1346 | Temp->Attributes |= EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;\r | |
| 1347 | } else {\r | |
| 1348 | return EFI_UNSUPPORTED;\r | |
| 1349 | }\r | |
| 1350 | \r | |
| 1351 | } else {\r | |
| 1352 | //\r | |
| 1353 | // GFX should be set to snoop\r | |
| 1354 | //\r | |
| 1355 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1356 | PciDisableCommandRegister (Temp, EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r | |
| 1357 | Temp->Attributes &= (~EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r | |
| 1358 | } else {\r | |
| 1359 | return EFI_UNSUPPORTED;\r | |
| 1360 | }\r | |
| 1361 | \r | |
| 1362 | }\r | |
| 1363 | \r | |
| 1364 | return EFI_SUCCESS;\r | |
| 1365 | }\r | |
| 1366 | \r | |
| 1367 | EFI_STATUS\r | |
| 1368 | EFIAPI\r | |
| 1369 | PciIoAttributes (\r | |
| 1370 | IN EFI_PCI_IO_PROTOCOL * This,\r | |
| 1371 | IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,\r | |
| 1372 | IN UINT64 Attributes,\r | |
| 1373 | OUT UINT64 *Result OPTIONAL\r | |
| 1374 | )\r | |
| bcd70414 | 1375 | /**\r |
| ead42efc | 1376 | \r |
| 1377 | Routine Description:\r | |
| 1378 | \r | |
| 1379 | \r | |
| 1380 | Arguments:\r | |
| 1381 | \r | |
| 1382 | Returns:\r | |
| 1383 | \r | |
| 1384 | None\r | |
| 1385 | \r | |
| bcd70414 | 1386 | **/\r |
| ead42efc | 1387 | // TODO: This - add argument and description to function comment\r |
| 1388 | // TODO: Operation - add argument and description to function comment\r | |
| 1389 | // TODO: Attributes - add argument and description to function comment\r | |
| 1390 | // TODO: Result - add argument and description to function comment\r | |
| 1391 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1392 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1393 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1394 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1395 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1396 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1397 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1398 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1399 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1400 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1401 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1402 | {\r | |
| 1403 | EFI_STATUS Status;\r | |
| 1404 | \r | |
| 1405 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1406 | PCI_IO_DEVICE *UpStreamBridge;\r | |
| 1407 | PCI_IO_DEVICE *Temp;\r | |
| 1408 | \r | |
| 1409 | UINT64 Supports;\r | |
| 1410 | UINT64 UpStreamAttributes;\r | |
| 1411 | UINT16 BridgeControl;\r | |
| 1412 | UINT16 Command;\r | |
| 1413 | \r | |
| 1414 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1415 | \r | |
| 1416 | switch (Operation) {\r | |
| 1417 | case EfiPciIoAttributeOperationGet:\r | |
| 1418 | if (Result == NULL) {\r | |
| 1419 | return EFI_INVALID_PARAMETER;\r | |
| 1420 | }\r | |
| 1421 | \r | |
| 1422 | *Result = PciIoDevice->Attributes;\r | |
| 1423 | return EFI_SUCCESS;\r | |
| 1424 | \r | |
| 1425 | case EfiPciIoAttributeOperationSupported:\r | |
| 1426 | if (Result == NULL) {\r | |
| 1427 | return EFI_INVALID_PARAMETER;\r | |
| 1428 | }\r | |
| 1429 | \r | |
| 1430 | *Result = PciIoDevice->Supports;\r | |
| 1431 | return EFI_SUCCESS;\r | |
| 1432 | \r | |
| 1433 | case EfiPciIoAttributeOperationSet:\r | |
| 1434 | Status = PciIoDevice->PciIo.Attributes (\r | |
| 1435 | &(PciIoDevice->PciIo),\r | |
| 1436 | EfiPciIoAttributeOperationEnable,\r | |
| 1437 | Attributes,\r | |
| 1438 | NULL\r | |
| 1439 | );\r | |
| 1440 | if (EFI_ERROR (Status)) {\r | |
| 1441 | return EFI_UNSUPPORTED;\r | |
| 1442 | }\r | |
| 1443 | \r | |
| 1444 | Status = PciIoDevice->PciIo.Attributes (\r | |
| 1445 | &(PciIoDevice->PciIo),\r | |
| 1446 | EfiPciIoAttributeOperationDisable,\r | |
| 1447 | (~Attributes) & (PciIoDevice->Supports),\r | |
| 1448 | NULL\r | |
| 1449 | );\r | |
| 1450 | if (EFI_ERROR (Status)) {\r | |
| 1451 | return EFI_UNSUPPORTED;\r | |
| 1452 | }\r | |
| 1453 | \r | |
| 1454 | return EFI_SUCCESS;\r | |
| 1455 | \r | |
| 1456 | case EfiPciIoAttributeOperationEnable:\r | |
| 1457 | case EfiPciIoAttributeOperationDisable:\r | |
| 1458 | break;\r | |
| 1459 | \r | |
| 1460 | default:\r | |
| 1461 | return EFI_INVALID_PARAMETER;\r | |
| 1462 | }\r | |
| 1463 | //\r | |
| 1464 | // Just a trick for ENABLE attribute\r | |
| 96f6af14 LG |
1465 | // EFI_PCI_DEVICE_ENABLE is not defined in UEFI spec, which is the internal usage.\r |
| 1466 | // So, this logic doesn't confrom to UEFI spec, which should be removed.\r | |
| cb33842e | 1467 | // But this trick logic is still kept for some binary drivers that depend on it.\r |
| ead42efc | 1468 | //\r |
| cb33842e LG |
1469 | if ((Attributes & EFI_PCI_DEVICE_ENABLE) == EFI_PCI_DEVICE_ENABLE) {\r |
| 1470 | Attributes &= (PciIoDevice->Supports);\r | |
| 1471 | \r | |
| 1472 | //\r | |
| 1473 | // Raise the EFI_P_PC_ENABLE Status code\r | |
| 1474 | //\r | |
| 1475 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
| 1476 | EFI_PROGRESS_CODE,\r | |
| 1477 | EFI_IO_BUS_PCI | EFI_P_PC_ENABLE,\r | |
| 1478 | PciIoDevice->DevicePath\r | |
| 1479 | );\r | |
| 1480 | }\r | |
| ead42efc | 1481 | \r |
| 1482 | //\r | |
| 1483 | // If no attributes can be supported, then return.\r | |
| 1484 | // Otherwise, set the attributes that it can support.\r | |
| 1485 | //\r | |
| 1486 | Supports = (PciIoDevice->Supports) & Attributes;\r | |
| 1487 | if (Supports != Attributes) {\r | |
| 1488 | return EFI_UNSUPPORTED;\r | |
| 1489 | }\r | |
| 1490 | \r | |
| 1491 | //\r | |
| 1492 | // For Root Bridge, just call RootBridgeIo to set attributes;\r | |
| 1493 | //\r | |
| 1494 | if (!PciIoDevice->Parent) {\r | |
| 1495 | Status = ModifyRootBridgeAttributes (PciIoDevice, Attributes, Operation);\r | |
| 1496 | return Status;\r | |
| 1497 | }\r | |
| 1498 | \r | |
| 1499 | Command = 0;\r | |
| 1500 | BridgeControl = 0;\r | |
| 1501 | \r | |
| 1502 | //\r | |
| 1503 | // Check VGA and VGA16, they can not be set at the same time\r | |
| 1504 | //\r | |
| 1505 | if (((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO) &&\r | |
| 1506 | (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) ||\r | |
| 1507 | ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO) &&\r | |
| 1508 | (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) ||\r | |
| 1509 | ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO) &&\r | |
| 1510 | (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) ||\r | |
| 1511 | ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO) &&\r | |
| 1512 | (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) ) {\r | |
| 1513 | return EFI_UNSUPPORTED;\r | |
| 1514 | }\r | |
| 1515 | \r | |
| 1516 | //\r | |
| 1517 | // For PPB & P2C, set relevant attribute bits\r | |
| 1518 | //\r | |
| 1519 | if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r | |
| 1520 | \r | |
| 1521 | if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r | |
| 1522 | BridgeControl |= EFI_PCI_BRIDGE_CONTROL_VGA;\r | |
| 1523 | }\r | |
| 1524 | \r | |
| 1525 | if (Attributes & EFI_PCI_IO_ATTRIBUTE_ISA_IO) {\r | |
| 1526 | BridgeControl |= EFI_PCI_BRIDGE_CONTROL_ISA;\r | |
| 1527 | }\r | |
| 1528 | \r | |
| 1529 | if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) {\r | |
| 1530 | Command |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;\r | |
| 1531 | }\r | |
| 1532 | \r | |
| 1533 | if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r | |
| 1534 | BridgeControl |= EFI_PCI_BRIDGE_CONTROL_VGA_16;\r | |
| 1535 | }\r | |
| 1536 | \r | |
| 1537 | } else {\r | |
| 1538 | //\r | |
| 1539 | // Do with the attributes on VGA\r | |
| 1540 | // Only for VGA's legacy resource, we just can enable once.\r | |
| 1541 | //\r | |
| 1542 | if (Attributes &\r | |
| 1543 | (EFI_PCI_IO_ATTRIBUTE_VGA_IO |\r | |
| 1544 | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 |\r | |
| 1545 | EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY)) {\r | |
| 1546 | //\r | |
| 1547 | // Check if a VGA has been enabled before enabling a new one\r | |
| 1548 | //\r | |
| 1549 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1550 | //\r | |
| 1551 | // Check if there have been an active VGA device on the same segment\r | |
| 1552 | //\r | |
| 1553 | Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice);\r | |
| 1554 | if (Temp && Temp != PciIoDevice) {\r | |
| 1555 | //\r | |
| 1556 | // An active VGA has been detected, so can not enable another\r | |
| 1557 | //\r | |
| 1558 | return EFI_UNSUPPORTED;\r | |
| 1559 | }\r | |
| 1560 | }\r | |
| 1561 | }\r | |
| 1562 | \r | |
| 1563 | //\r | |
| 1564 | // Do with the attributes on GFX\r | |
| 1565 | //\r | |
| 1566 | if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) {\r | |
| 1567 | \r | |
| 1568 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1569 | //\r | |
| 1570 | // Check if snoop can be enabled in current configuration\r | |
| 1571 | //\r | |
| 1572 | Status = SupportPaletteSnoopAttributes (PciIoDevice, Operation);\r | |
| 1573 | \r | |
| 1574 | if (EFI_ERROR (Status)) {\r | |
| 1575 | \r | |
| 1576 | //\r | |
| 1577 | // Enable operation is forbidden, so mask the bit in attributes\r | |
| 1578 | // so as to keep consistent with the actual Status\r | |
| 1579 | //\r | |
| 1580 | // Attributes &= (~EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO);\r | |
| 1581 | //\r | |
| 1582 | //\r | |
| 1583 | //\r | |
| 1584 | return EFI_UNSUPPORTED;\r | |
| 1585 | \r | |
| 1586 | }\r | |
| 1587 | }\r | |
| 1588 | \r | |
| 1589 | //\r | |
| 1590 | // It can be supported, so get ready to set the bit\r | |
| 1591 | //\r | |
| 1592 | Command |= EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;\r | |
| 1593 | }\r | |
| 1594 | }\r | |
| 1595 | \r | |
| 1596 | if (Attributes & EFI_PCI_IO_ATTRIBUTE_IO) {\r | |
| 1597 | Command |= EFI_PCI_COMMAND_IO_SPACE;\r | |
| 1598 | }\r | |
| 1599 | \r | |
| 1600 | if (Attributes & EFI_PCI_IO_ATTRIBUTE_MEMORY) {\r | |
| 1601 | Command |= EFI_PCI_COMMAND_MEMORY_SPACE;\r | |
| 1602 | }\r | |
| 1603 | \r | |
| 1604 | if (Attributes & EFI_PCI_IO_ATTRIBUTE_BUS_MASTER) {\r | |
| 1605 | Command |= EFI_PCI_COMMAND_BUS_MASTER;\r | |
| 1606 | }\r | |
| 1607 | //\r | |
| 1608 | // The upstream bridge should be also set to revelant attribute\r | |
| 1609 | // expect for IO, Mem and BusMaster\r | |
| 1610 | //\r | |
| 1611 | UpStreamAttributes = Attributes & \r | |
| 1612 | (~(EFI_PCI_IO_ATTRIBUTE_IO |\r | |
| 1613 | EFI_PCI_IO_ATTRIBUTE_MEMORY |\r | |
| 1614 | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER\r | |
| 1615 | )\r | |
| 1616 | );\r | |
| 1617 | UpStreamBridge = PciIoDevice->Parent;\r | |
| 1618 | \r | |
| 1619 | if (Operation == EfiPciIoAttributeOperationEnable) {\r | |
| 1620 | //\r | |
| 1621 | // Enable relevant attributes to command register and bridge control register\r | |
| 1622 | //\r | |
| 1623 | Status = PciEnableCommandRegister (PciIoDevice, Command);\r | |
| 1624 | if (BridgeControl) {\r | |
| 1625 | Status = PciEnableBridgeControlRegister (PciIoDevice, BridgeControl);\r | |
| 1626 | }\r | |
| 1627 | \r | |
| 1628 | PciIoDevice->Attributes |= Attributes;\r | |
| 1629 | \r | |
| 1630 | //\r | |
| 1631 | // Enable attributes of the upstream bridge\r | |
| 1632 | //\r | |
| 1633 | Status = UpStreamBridge->PciIo.Attributes (\r | |
| 1634 | &(UpStreamBridge->PciIo),\r | |
| 1635 | EfiPciIoAttributeOperationEnable,\r | |
| 1636 | UpStreamAttributes,\r | |
| 1637 | NULL\r | |
| 1638 | );\r | |
| 1639 | } else {\r | |
| 1640 | \r | |
| 1641 | //\r | |
| 1642 | // Disable relevant attributes to command register and bridge control register\r | |
| 1643 | //\r | |
| 1644 | Status = PciDisableCommandRegister (PciIoDevice, Command);\r | |
| 1645 | if (BridgeControl) {\r | |
| 1646 | Status = PciDisableBridgeControlRegister (PciIoDevice, BridgeControl);\r | |
| 1647 | }\r | |
| 1648 | \r | |
| 1649 | PciIoDevice->Attributes &= (~Attributes);\r | |
| 1650 | Status = EFI_SUCCESS;\r | |
| 1651 | \r | |
| 1652 | }\r | |
| 1653 | \r | |
| 1654 | if (EFI_ERROR (Status)) {\r | |
| 1655 | ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r | |
| 1656 | }\r | |
| 1657 | \r | |
| 1658 | return Status;\r | |
| 1659 | }\r | |
| 1660 | \r | |
| 1661 | EFI_STATUS\r | |
| 1662 | EFIAPI\r | |
| 1663 | PciIoGetBarAttributes (\r | |
| 1664 | IN EFI_PCI_IO_PROTOCOL * This,\r | |
| 1665 | IN UINT8 BarIndex,\r | |
| 1666 | OUT UINT64 *Supports, OPTIONAL\r | |
| 1667 | OUT VOID **Resources OPTIONAL\r | |
| 1668 | )\r | |
| bcd70414 | 1669 | /**\r |
| ead42efc | 1670 | \r |
| 1671 | Routine Description:\r | |
| 1672 | \r | |
| 1673 | \r | |
| 1674 | Arguments:\r | |
| 1675 | \r | |
| 1676 | Returns:\r | |
| 1677 | \r | |
| 1678 | None\r | |
| 1679 | \r | |
| bcd70414 | 1680 | **/\r |
| ead42efc | 1681 | // TODO: This - add argument and description to function comment\r |
| 1682 | // TODO: BarIndex - add argument and description to function comment\r | |
| 1683 | // TODO: Supports - add argument and description to function comment\r | |
| 1684 | // TODO: Resources - add argument and description to function comment\r | |
| 1685 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1686 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1687 | // TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r | |
| 1688 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1689 | {\r | |
| 1690 | \r | |
| 1691 | UINT8 *Configuration;\r | |
| 1692 | UINT8 NumConfig;\r | |
| 1693 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1694 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;\r | |
| 1695 | EFI_ACPI_END_TAG_DESCRIPTOR *PtrEnd;\r | |
| 1696 | \r | |
| 1697 | NumConfig = 0;\r | |
| 1698 | \r | |
| 1699 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1700 | \r | |
| 1701 | if (Supports == NULL && Resources == NULL) {\r | |
| 1702 | return EFI_INVALID_PARAMETER;\r | |
| 1703 | }\r | |
| 1704 | \r | |
| 1705 | if (BarIndex >= PCI_MAX_BAR) {\r | |
| 1706 | return EFI_UNSUPPORTED;\r | |
| 1707 | }\r | |
| 1708 | \r | |
| 1709 | //\r | |
| 1710 | // This driver does not support modifications to the WRITE_COMBINE or\r | |
| 1711 | // CACHED attributes for BAR ranges.\r | |
| 1712 | //\r | |
| 1713 | if (Supports != NULL) {\r | |
| 1714 | *Supports = PciIoDevice->Supports & EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED & EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE;\r | |
| 1715 | }\r | |
| 1716 | \r | |
| 1717 | if (Resources != NULL) {\r | |
| 1718 | \r | |
| 1719 | if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeUnknown) {\r | |
| 1720 | NumConfig = 1;\r | |
| 1721 | }\r | |
| 1722 | \r | |
| 1723 | Configuration = AllocatePool (sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * NumConfig + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR));\r | |
| 1724 | if (Configuration == NULL) {\r | |
| 1725 | return EFI_OUT_OF_RESOURCES;\r | |
| 1726 | }\r | |
| 1727 | \r | |
| 1728 | ZeroMem (\r | |
| 1729 | Configuration,\r | |
| 1730 | sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * NumConfig + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR)\r | |
| 1731 | );\r | |
| 1732 | \r | |
| 1733 | Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;\r | |
| 1734 | \r | |
| 1735 | if (NumConfig == 1) {\r | |
| 1736 | Ptr->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;\r | |
| 1737 | Ptr->Len = sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3;\r | |
| 1738 | \r | |
| 1739 | Ptr->AddrRangeMin = PciIoDevice->PciBar[BarIndex].BaseAddress;\r | |
| 1740 | Ptr->AddrLen = PciIoDevice->PciBar[BarIndex].Length;\r | |
| 1741 | Ptr->AddrRangeMax = PciIoDevice->PciBar[BarIndex].Alignment;\r | |
| 1742 | \r | |
| 1743 | switch (PciIoDevice->PciBar[BarIndex].BarType) {\r | |
| 1744 | case PciBarTypeIo16:\r | |
| 1745 | case PciBarTypeIo32:\r | |
| 1746 | //\r | |
| 1747 | // Io\r | |
| 1748 | //\r | |
| 1749 | Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_IO;\r | |
| 1750 | break;\r | |
| 1751 | \r | |
| 1752 | case PciBarTypeMem32:\r | |
| 1753 | //\r | |
| 1754 | // Mem\r | |
| 1755 | //\r | |
| 1756 | Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r | |
| 1757 | //\r | |
| 1758 | // 32 bit\r | |
| 1759 | //\r | |
| 1760 | Ptr->AddrSpaceGranularity = 32;\r | |
| 1761 | break;\r | |
| 1762 | \r | |
| 1763 | case PciBarTypePMem32:\r | |
| 1764 | //\r | |
| 1765 | // Mem\r | |
| 1766 | //\r | |
| 1767 | Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r | |
| 1768 | //\r | |
| 1769 | // prefechable\r | |
| 1770 | //\r | |
| 1771 | Ptr->SpecificFlag = 0x6;\r | |
| 1772 | //\r | |
| 1773 | // 32 bit\r | |
| 1774 | //\r | |
| 1775 | Ptr->AddrSpaceGranularity = 32;\r | |
| 1776 | break;\r | |
| 1777 | \r | |
| 1778 | case PciBarTypeMem64:\r | |
| 1779 | //\r | |
| 1780 | // Mem\r | |
| 1781 | //\r | |
| 1782 | Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r | |
| 1783 | //\r | |
| 1784 | // 64 bit\r | |
| 1785 | //\r | |
| 1786 | Ptr->AddrSpaceGranularity = 64;\r | |
| 1787 | break;\r | |
| 1788 | \r | |
| 1789 | case PciBarTypePMem64:\r | |
| 1790 | //\r | |
| 1791 | // Mem\r | |
| 1792 | //\r | |
| 1793 | Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r | |
| 1794 | //\r | |
| 1795 | // prefechable\r | |
| 1796 | //\r | |
| 1797 | Ptr->SpecificFlag = 0x6;\r | |
| 1798 | //\r | |
| 1799 | // 64 bit\r | |
| 1800 | //\r | |
| 1801 | Ptr->AddrSpaceGranularity = 64;\r | |
| 1802 | break;\r | |
| 1803 | \r | |
| 1804 | default:\r | |
| 1805 | break;\r | |
| 1806 | }\r | |
| 1807 | \r | |
| 1808 | Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) ((UINT8 *) Ptr + sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR));\r | |
| 1809 | }\r | |
| 1810 | \r | |
| 1811 | //\r | |
| 1812 | // put the checksum\r | |
| 1813 | //\r | |
| 1814 | PtrEnd = (EFI_ACPI_END_TAG_DESCRIPTOR *) ((UINT8 *) Ptr);\r | |
| 1815 | PtrEnd->Desc = ACPI_END_TAG_DESCRIPTOR;\r | |
| 1816 | PtrEnd->Checksum = 0;\r | |
| 1817 | \r | |
| 1818 | *Resources = Configuration;\r | |
| 1819 | }\r | |
| 1820 | \r | |
| 1821 | return EFI_SUCCESS;\r | |
| 1822 | }\r | |
| 1823 | \r | |
| 1824 | EFI_STATUS\r | |
| 1825 | EFIAPI\r | |
| 1826 | PciIoSetBarAttributes (\r | |
| 1827 | IN EFI_PCI_IO_PROTOCOL *This,\r | |
| 1828 | IN UINT64 Attributes,\r | |
| 1829 | IN UINT8 BarIndex,\r | |
| 1830 | IN OUT UINT64 *Offset,\r | |
| 1831 | IN OUT UINT64 *Length\r | |
| 1832 | )\r | |
| bcd70414 | 1833 | /**\r |
| ead42efc | 1834 | \r |
| 1835 | Routine Description:\r | |
| 1836 | \r | |
| 1837 | \r | |
| 1838 | Arguments:\r | |
| 1839 | \r | |
| 1840 | Returns:\r | |
| 1841 | \r | |
| 1842 | None\r | |
| 1843 | \r | |
| bcd70414 | 1844 | **/\r |
| ead42efc | 1845 | // TODO: This - add argument and description to function comment\r |
| 1846 | // TODO: Attributes - add argument and description to function comment\r | |
| 1847 | // TODO: BarIndex - add argument and description to function comment\r | |
| 1848 | // TODO: Offset - add argument and description to function comment\r | |
| 1849 | // TODO: Length - add argument and description to function comment\r | |
| 1850 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
| 1851 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1852 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1853 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
| 1854 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1855 | {\r | |
| 1856 | EFI_STATUS Status;\r | |
| 1857 | PCI_IO_DEVICE *PciIoDevice;\r | |
| 1858 | UINT64 NonRelativeOffset;\r | |
| 1859 | UINT64 Supports;\r | |
| 1860 | \r | |
| 1861 | PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r | |
| 1862 | \r | |
| 1863 | //\r | |
| 1864 | // Make sure Offset and Length are not NULL\r | |
| 1865 | //\r | |
| 1866 | if (Offset == NULL || Length == NULL) {\r | |
| 1867 | return EFI_INVALID_PARAMETER;\r | |
| 1868 | }\r | |
| 1869 | \r | |
| 1870 | if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypeUnknown) {\r | |
| 1871 | return EFI_UNSUPPORTED;\r | |
| 1872 | }\r | |
| 1873 | //\r | |
| 1874 | // This driver does not support setting the WRITE_COMBINE or the CACHED attributes.\r | |
| 1875 | // If Attributes is not 0, then return EFI_UNSUPPORTED.\r | |
| 1876 | //\r | |
| 1877 | Supports = PciIoDevice->Supports & EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED & EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE;\r | |
| 1878 | \r | |
| 1879 | if (Attributes != (Attributes & Supports)) {\r | |
| 1880 | return EFI_UNSUPPORTED;\r | |
| 1881 | }\r | |
| 1882 | //\r | |
| 1883 | // Attributes must be supported. Make sure the BAR range describd by BarIndex, Offset, and\r | |
| 1884 | // Length are valid for this PCI device.\r | |
| 1885 | //\r | |
| 1886 | NonRelativeOffset = *Offset;\r | |
| 1887 | Status = PciIoVerifyBarAccess (\r | |
| 1888 | PciIoDevice,\r | |
| 1889 | BarIndex,\r | |
| 1890 | PciBarTypeMem,\r | |
| 1891 | EfiPciIoWidthUint8,\r | |
| 1892 | (UINT32) *Length,\r | |
| 1893 | &NonRelativeOffset\r | |
| 1894 | );\r | |
| 1895 | if (EFI_ERROR (Status)) {\r | |
| 1896 | return EFI_UNSUPPORTED;\r | |
| 1897 | }\r | |
| 1898 | \r | |
| 1899 | return EFI_SUCCESS;\r | |
| 1900 | }\r | |
| 1901 | \r | |
| 1902 | EFI_STATUS\r | |
| 1903 | UpStreamBridgesAttributes (\r | |
| 1904 | IN PCI_IO_DEVICE *PciIoDevice,\r | |
| 1905 | IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,\r | |
| 1906 | IN UINT64 Attributes\r | |
| 1907 | )\r | |
| bcd70414 | 1908 | /**\r |
| ead42efc | 1909 | \r |
| 1910 | Routine Description:\r | |
| 1911 | \r | |
| 1912 | Arguments:\r | |
| 1913 | \r | |
| 1914 | Returns:\r | |
| 1915 | \r | |
| 1916 | None\r | |
| 1917 | \r | |
| bcd70414 | 1918 | **/\r |
| ead42efc | 1919 | // TODO: PciIoDevice - add argument and description to function comment\r |
| 1920 | // TODO: Operation - add argument and description to function comment\r | |
| 1921 | // TODO: Attributes - add argument and description to function comment\r | |
| 1922 | // TODO: EFI_SUCCESS - add return value to function comment\r | |
| 1923 | {\r | |
| 1924 | PCI_IO_DEVICE *Parent;\r | |
| 1925 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
| 1926 | \r | |
| 1927 | Parent = PciIoDevice->Parent;\r | |
| 1928 | \r | |
| 1929 | while (Parent && IS_PCI_BRIDGE (&Parent->Pci)) {\r | |
| 1930 | \r | |
| 1931 | //\r | |
| 1932 | // Get the PciIo Protocol\r | |
| 1933 | //\r | |
| 1934 | PciIo = &Parent->PciIo;\r | |
| 1935 | \r | |
| 1936 | PciIo->Attributes (PciIo, Operation, Attributes, NULL);\r | |
| 1937 | \r | |
| 1938 | Parent = Parent->Parent;\r | |
| 1939 | }\r | |
| 1940 | \r | |
| 1941 | return EFI_SUCCESS;\r | |
| 1942 | }\r | |
| 1943 | \r | |
| 1944 | BOOLEAN\r | |
| 1945 | PciDevicesOnTheSamePath (\r | |
| 1946 | IN PCI_IO_DEVICE *PciDevice1,\r | |
| 1947 | IN PCI_IO_DEVICE *PciDevice2\r | |
| 1948 | )\r | |
| bcd70414 | 1949 | /**\r |
| ead42efc | 1950 | \r |
| 1951 | Routine Description:\r | |
| 1952 | \r | |
| 1953 | Arguments:\r | |
| 1954 | \r | |
| 1955 | Returns:\r | |
| 1956 | \r | |
| 1957 | None\r | |
| 1958 | \r | |
| bcd70414 | 1959 | **/\r |
| ead42efc | 1960 | // TODO: PciDevice1 - add argument and description to function comment\r |
| 1961 | // TODO: PciDevice2 - add argument and description to function comment\r | |
| 1962 | {\r | |
| 1963 | BOOLEAN Existed1;\r | |
| 1964 | BOOLEAN Existed2;\r | |
| 1965 | \r | |
| 1966 | if (PciDevice1->Parent == PciDevice2->Parent) {\r | |
| 1967 | return TRUE;\r | |
| 1968 | }\r | |
| 1969 | \r | |
| 1970 | Existed1 = PciDeviceExisted (PciDevice1->Parent, PciDevice2);\r | |
| 1971 | Existed2 = PciDeviceExisted (PciDevice2->Parent, PciDevice1);\r | |
| 1972 | \r | |
| 1973 | return (BOOLEAN) (Existed1 || Existed2);\r | |
| 1974 | }\r |