| 95276127 |
1 | /*++\r |
| 2 | \r |
| 3 | Copyright (c) 2006 - 2007, 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 |
| 12 | Module Name:\r |
| 13 | \r |
| 14 | ConPlatform.c\r |
| 15 | \r |
| 16 | Abstract:\r |
| 17 | \r |
| 18 | --*/\r |
| 19 | \r |
| 859b72fa |
20 | #include <ConPlatform.h>\r |
| 95276127 |
21 | \r |
| 95276127 |
22 | \r |
| 23 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextInDriverBinding = {\r |
| 24 | ConPlatformTextInDriverBindingSupported,\r |
| 25 | ConPlatformTextInDriverBindingStart,\r |
| 26 | ConPlatformTextInDriverBindingStop,\r |
| 27 | 0xa,\r |
| 28 | NULL,\r |
| 29 | NULL\r |
| 30 | };\r |
| 31 | \r |
| 32 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextOutDriverBinding = {\r |
| 33 | ConPlatformTextOutDriverBindingSupported,\r |
| 34 | ConPlatformTextOutDriverBindingStart,\r |
| 35 | ConPlatformTextOutDriverBindingStop,\r |
| 36 | 0xa,\r |
| 37 | NULL,\r |
| 38 | NULL\r |
| 39 | };\r |
| 40 | \r |
| 41 | /**\r |
| 42 | The user Entry Point for module ConPlatform. The user code starts with this function.\r |
| 43 | \r |
| 44 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r |
| 45 | @param[in] SystemTable A pointer to the EFI System Table.\r |
| 46 | \r |
| 47 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
| 48 | @retval other Some error occurs when executing this entry point.\r |
| 49 | \r |
| 50 | **/\r |
| 51 | EFI_STATUS\r |
| 52 | EFIAPI\r |
| 53 | InitializeConPlatform(\r |
| 54 | IN EFI_HANDLE ImageHandle,\r |
| 55 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 56 | )\r |
| 57 | {\r |
| 58 | EFI_STATUS Status;\r |
| 59 | \r |
| 60 | //\r |
| 61 | // Install driver model protocol(s).\r |
| 62 | //\r |
| 63 | Status = EfiLibInstallAllDriverProtocols (\r |
| 64 | ImageHandle,\r |
| 65 | SystemTable,\r |
| 66 | &gConPlatformTextInDriverBinding,\r |
| 67 | ImageHandle,\r |
| 68 | &gConPlatformComponentName,\r |
| 69 | NULL,\r |
| 70 | NULL\r |
| 71 | );\r |
| 72 | ASSERT_EFI_ERROR (Status);\r |
| 73 | \r |
| 74 | Status = EfiLibInstallAllDriverProtocols (\r |
| 75 | ImageHandle,\r |
| 76 | SystemTable,\r |
| 77 | &gConPlatformTextOutDriverBinding,\r |
| 78 | NULL,\r |
| 79 | &gConPlatformComponentName,\r |
| 80 | NULL,\r |
| 81 | NULL\r |
| 82 | );\r |
| 83 | ASSERT_EFI_ERROR (Status);\r |
| 84 | \r |
| 85 | \r |
| 86 | return Status;\r |
| 87 | }\r |
| 88 | \r |
| 89 | \r |
| 90 | EFI_STATUS\r |
| 91 | EFIAPI\r |
| 92 | ConPlatformTextInDriverBindingSupported (\r |
| 93 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 94 | IN EFI_HANDLE ControllerHandle,\r |
| 95 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 96 | )\r |
| 97 | /*++\r |
| 98 | \r |
| 99 | Routine Description:\r |
| 100 | Supported\r |
| 101 | \r |
| 102 | Arguments:\r |
| 103 | (Standard DriverBinding Protocol Supported() function)\r |
| 104 | \r |
| 105 | Returns:\r |
| 106 | \r |
| 107 | None\r |
| 108 | \r |
| 109 | --*/\r |
| 110 | {\r |
| 111 | return ConPlatformDriverBindingSupported (\r |
| 112 | This,\r |
| 113 | ControllerHandle,\r |
| 114 | RemainingDevicePath,\r |
| 115 | &gEfiSimpleTextInProtocolGuid\r |
| 116 | );\r |
| 117 | }\r |
| 118 | \r |
| 119 | EFI_STATUS\r |
| 120 | EFIAPI\r |
| 121 | ConPlatformTextOutDriverBindingSupported (\r |
| 122 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 123 | IN EFI_HANDLE ControllerHandle,\r |
| 124 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 125 | )\r |
| 126 | /*++\r |
| 127 | \r |
| 128 | Routine Description:\r |
| 129 | Supported\r |
| 130 | \r |
| 131 | Arguments:\r |
| 132 | (Standard DriverBinding Protocol Supported() function)\r |
| 133 | \r |
| 134 | Returns:\r |
| 135 | \r |
| 136 | None\r |
| 137 | \r |
| 138 | --*/\r |
| 139 | {\r |
| 140 | return ConPlatformDriverBindingSupported (\r |
| 141 | This,\r |
| 142 | ControllerHandle,\r |
| 143 | RemainingDevicePath,\r |
| 144 | &gEfiSimpleTextOutProtocolGuid\r |
| 145 | );\r |
| 146 | }\r |
| 147 | \r |
| 148 | EFI_STATUS\r |
| 149 | ConPlatformDriverBindingSupported (\r |
| 150 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 151 | IN EFI_HANDLE ControllerHandle,\r |
| 152 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath,\r |
| 153 | IN EFI_GUID *ProtocolGuid\r |
| 154 | )\r |
| 155 | /*++\r |
| 156 | \r |
| 157 | Routine Description:\r |
| 158 | Supported\r |
| 159 | \r |
| 160 | Arguments:\r |
| 161 | (Standard DriverBinding Protocol Supported() function)\r |
| 162 | \r |
| 163 | Returns:\r |
| 164 | \r |
| 165 | None\r |
| 166 | \r |
| 167 | --*/\r |
| 168 | {\r |
| 169 | EFI_STATUS Status;\r |
| 170 | VOID *Interface;\r |
| 171 | \r |
| 172 | //\r |
| 173 | // Test to see if this is a physical device by checking to see if\r |
| 174 | // it has a Device Path Protocol\r |
| 175 | //\r |
| 176 | Status = gBS->OpenProtocol (\r |
| 177 | ControllerHandle,\r |
| 178 | &gEfiDevicePathProtocolGuid,\r |
| 179 | NULL,\r |
| 180 | This->DriverBindingHandle,\r |
| 181 | ControllerHandle,\r |
| 182 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 183 | );\r |
| 184 | if (EFI_ERROR (Status)) {\r |
| 185 | return Status;\r |
| 186 | }\r |
| 187 | //\r |
| 188 | // Test to see if this device supports the Simple Text Output Protocol\r |
| 189 | //\r |
| 190 | Status = gBS->OpenProtocol (\r |
| 191 | ControllerHandle,\r |
| 192 | ProtocolGuid,\r |
| 193 | (VOID **) &Interface,\r |
| 194 | This->DriverBindingHandle,\r |
| 195 | ControllerHandle,\r |
| 196 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 197 | );\r |
| 198 | if (EFI_ERROR (Status)) {\r |
| 199 | return Status;\r |
| 200 | }\r |
| 201 | \r |
| 202 | gBS->CloseProtocol (\r |
| 203 | ControllerHandle,\r |
| 204 | ProtocolGuid,\r |
| 205 | This->DriverBindingHandle,\r |
| 206 | ControllerHandle\r |
| 207 | );\r |
| 208 | \r |
| 209 | return EFI_SUCCESS;\r |
| 210 | }\r |
| 211 | \r |
| 212 | EFI_STATUS\r |
| 213 | EFIAPI\r |
| 214 | ConPlatformTextInDriverBindingStart (\r |
| 215 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 216 | IN EFI_HANDLE ControllerHandle,\r |
| 217 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 218 | )\r |
| 219 | /*++\r |
| 220 | \r |
| 221 | Routine Description:\r |
| 222 | \r |
| 223 | \r |
| 224 | Arguments:\r |
| 225 | (Standard DriverBinding Protocol Start() function)\r |
| 226 | \r |
| 227 | Returns:\r |
| 228 | \r |
| 229 | \r |
| 230 | --*/\r |
| 231 | {\r |
| 232 | EFI_STATUS Status;\r |
| 233 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 234 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;\r |
| 235 | \r |
| 236 | //\r |
| 237 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 238 | //\r |
| 239 | Status = gBS->OpenProtocol (\r |
| 240 | ControllerHandle,\r |
| 241 | &gEfiDevicePathProtocolGuid,\r |
| 242 | (VOID **) &DevicePath,\r |
| 243 | This->DriverBindingHandle,\r |
| 244 | ControllerHandle,\r |
| 245 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 246 | );\r |
| 247 | if (EFI_ERROR (Status)) {\r |
| 248 | return Status;\r |
| 249 | }\r |
| 250 | //\r |
| 251 | // Open the Simple Input Protocol BY_DRIVER\r |
| 252 | //\r |
| 253 | Status = gBS->OpenProtocol (\r |
| 254 | ControllerHandle,\r |
| 255 | &gEfiSimpleTextInProtocolGuid,\r |
| 256 | (VOID **) &TextIn,\r |
| 257 | This->DriverBindingHandle,\r |
| 258 | ControllerHandle,\r |
| 259 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 260 | );\r |
| 261 | if (EFI_ERROR (Status)) {\r |
| 262 | return Status;\r |
| 263 | }\r |
| 264 | //\r |
| 265 | // Check the device handle, if it is a hot plug device,\r |
| 266 | // do not put the device path into ConInDev, and install\r |
| 267 | // gEfiConsoleInDeviceGuid to the device handle directly.\r |
| 268 | // The policy is, make hot plug device plug in and play immediately.\r |
| 269 | //\r |
| 270 | if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 271 | gBS->InstallMultipleProtocolInterfaces (\r |
| 272 | &ControllerHandle,\r |
| 273 | &gEfiConsoleInDeviceGuid,\r |
| 274 | NULL,\r |
| 275 | NULL\r |
| 276 | );\r |
| 277 | } else {\r |
| 278 | //\r |
| 279 | // Append the device path to the ConInDev environment variable\r |
| 280 | //\r |
| 281 | ConPlatformUpdateDeviceVariable (\r |
| 282 | VarConsoleInpDev,\r |
| 283 | DevicePath,\r |
| 284 | APPEND\r |
| 285 | );\r |
| 286 | \r |
| 287 | //\r |
| 288 | // If the device path is an instance in the ConIn environment variable,\r |
| 289 | // then install EfiConsoleInDeviceGuid onto ControllerHandle\r |
| 290 | //\r |
| 291 | Status = ConPlatformUpdateDeviceVariable (\r |
| 292 | VarConsoleInp,\r |
| 293 | DevicePath,\r |
| 294 | CHECK\r |
| 295 | );\r |
| 296 | \r |
| 297 | if (!EFI_ERROR (Status)) {\r |
| 298 | gBS->InstallMultipleProtocolInterfaces (\r |
| 299 | &ControllerHandle,\r |
| 300 | &gEfiConsoleInDeviceGuid,\r |
| 301 | NULL,\r |
| 302 | NULL\r |
| 303 | );\r |
| 304 | } else {\r |
| 305 | gBS->CloseProtocol (\r |
| 306 | ControllerHandle,\r |
| 307 | &gEfiSimpleTextInProtocolGuid,\r |
| 308 | This->DriverBindingHandle,\r |
| 309 | ControllerHandle\r |
| 310 | );\r |
| 311 | }\r |
| 312 | }\r |
| 313 | \r |
| 314 | return EFI_SUCCESS;\r |
| 315 | }\r |
| 316 | \r |
| 317 | EFI_STATUS\r |
| 318 | EFIAPI\r |
| 319 | ConPlatformTextOutDriverBindingStart (\r |
| 320 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 321 | IN EFI_HANDLE ControllerHandle,\r |
| 322 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 323 | )\r |
| 324 | /*++\r |
| 325 | \r |
| 326 | Routine Description:\r |
| 327 | \r |
| 328 | \r |
| 329 | Arguments:\r |
| 330 | (Standard DriverBinding Protocol Start() function)\r |
| 331 | \r |
| 332 | Returns:\r |
| 333 | \r |
| 334 | \r |
| 335 | --*/\r |
| 336 | {\r |
| 337 | EFI_STATUS Status;\r |
| 338 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 339 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;\r |
| 340 | BOOLEAN NeedClose;\r |
| 341 | \r |
| 342 | NeedClose = TRUE;\r |
| 343 | \r |
| 344 | //\r |
| 345 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 346 | //\r |
| 347 | Status = gBS->OpenProtocol (\r |
| 348 | ControllerHandle,\r |
| 349 | &gEfiDevicePathProtocolGuid,\r |
| 350 | (VOID **) &DevicePath,\r |
| 351 | This->DriverBindingHandle,\r |
| 352 | ControllerHandle,\r |
| 353 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 354 | );\r |
| 355 | if (EFI_ERROR (Status)) {\r |
| 356 | return Status;\r |
| 357 | }\r |
| 358 | //\r |
| 359 | // Open the Simple Text Output Protocol BY_DRIVER\r |
| 360 | //\r |
| 361 | Status = gBS->OpenProtocol (\r |
| 362 | ControllerHandle,\r |
| 363 | &gEfiSimpleTextOutProtocolGuid,\r |
| 364 | (VOID **) &TextOut,\r |
| 365 | This->DriverBindingHandle,\r |
| 366 | ControllerHandle,\r |
| 367 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 368 | );\r |
| 369 | if (EFI_ERROR (Status)) {\r |
| 370 | return Status;\r |
| 371 | }\r |
| 372 | //\r |
| 373 | // Check the device handle, if it is a hot plug device,\r |
| 374 | // do not put the device path into ConOutDev and StdErrDev,\r |
| 375 | // and install gEfiConsoleOutDeviceGuid to the device handle directly.\r |
| 376 | // The policy is, make hot plug device plug in and play immediately.\r |
| 377 | //\r |
| 378 | if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 379 | gBS->InstallMultipleProtocolInterfaces (\r |
| 380 | &ControllerHandle,\r |
| 381 | &gEfiConsoleOutDeviceGuid,\r |
| 382 | NULL,\r |
| 383 | NULL\r |
| 384 | );\r |
| 385 | } else {\r |
| 386 | //\r |
| 387 | // Append the device path to the ConOutDev environment variable\r |
| 388 | //\r |
| 389 | ConPlatformUpdateDeviceVariable (\r |
| 390 | VarConsoleOutDev,\r |
| 391 | DevicePath,\r |
| 392 | APPEND\r |
| 393 | );\r |
| 394 | //\r |
| 395 | // Append the device path to the StdErrDev environment variable\r |
| 396 | //\r |
| 397 | ConPlatformUpdateDeviceVariable (\r |
| 398 | VarErrorOutDev,\r |
| 399 | DevicePath,\r |
| 400 | APPEND\r |
| 401 | );\r |
| 402 | \r |
| 403 | //\r |
| 404 | // If the device path is an instance in the ConOut environment variable,\r |
| 405 | // then install EfiConsoleOutDeviceGuid onto ControllerHandle\r |
| 406 | //\r |
| 407 | Status = ConPlatformUpdateDeviceVariable (\r |
| 408 | VarConsoleOut,\r |
| 409 | DevicePath,\r |
| 410 | CHECK\r |
| 411 | );\r |
| 412 | \r |
| 413 | if (!EFI_ERROR (Status)) {\r |
| 414 | NeedClose = FALSE;\r |
| 415 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 416 | &ControllerHandle,\r |
| 417 | &gEfiConsoleOutDeviceGuid,\r |
| 418 | NULL,\r |
| 419 | NULL\r |
| 420 | );\r |
| 421 | }\r |
| 422 | //\r |
| 423 | // If the device path is an instance in the StdErr environment variable,\r |
| 424 | // then install EfiStandardErrorDeviceGuid onto ControllerHandle\r |
| 425 | //\r |
| 426 | Status = ConPlatformUpdateDeviceVariable (\r |
| 427 | VarErrorOut,\r |
| 428 | DevicePath,\r |
| 429 | CHECK\r |
| 430 | );\r |
| 431 | if (!EFI_ERROR (Status)) {\r |
| 432 | NeedClose = FALSE;\r |
| 433 | gBS->InstallMultipleProtocolInterfaces (\r |
| 434 | &ControllerHandle,\r |
| 435 | &gEfiStandardErrorDeviceGuid,\r |
| 436 | NULL,\r |
| 437 | NULL\r |
| 438 | );\r |
| 439 | }\r |
| 440 | \r |
| 441 | if (NeedClose) {\r |
| 442 | gBS->CloseProtocol (\r |
| 443 | ControllerHandle,\r |
| 444 | &gEfiSimpleTextOutProtocolGuid,\r |
| 445 | This->DriverBindingHandle,\r |
| 446 | ControllerHandle\r |
| 447 | );\r |
| 448 | }\r |
| 449 | }\r |
| 450 | \r |
| 451 | return EFI_SUCCESS;\r |
| 452 | }\r |
| 453 | \r |
| 454 | EFI_STATUS\r |
| 455 | EFIAPI\r |
| 456 | ConPlatformTextInDriverBindingStop (\r |
| 457 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 458 | IN EFI_HANDLE ControllerHandle,\r |
| 459 | IN UINTN NumberOfChildren,\r |
| 460 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 461 | )\r |
| 462 | /*++\r |
| 463 | \r |
| 464 | Routine Description:\r |
| 465 | \r |
| 466 | Arguments:\r |
| 467 | (Standard DriverBinding Protocol Stop() function)\r |
| 468 | \r |
| 469 | Returns:\r |
| 470 | \r |
| 471 | None\r |
| 472 | \r |
| 473 | --*/\r |
| 474 | {\r |
| 475 | EFI_STATUS Status;\r |
| 476 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 477 | \r |
| 478 | //\r |
| 479 | // hot plug device is not included into the console associated variables,\r |
| 480 | // so no need to check variable for those hot plug devices.\r |
| 481 | //\r |
| 482 | if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 483 | //\r |
| 484 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 485 | //\r |
| 486 | Status = gBS->OpenProtocol (\r |
| 487 | ControllerHandle,\r |
| 488 | &gEfiDevicePathProtocolGuid,\r |
| 489 | (VOID **) &DevicePath,\r |
| 490 | This->DriverBindingHandle,\r |
| 491 | ControllerHandle,\r |
| 492 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 493 | );\r |
| 494 | if (!EFI_ERROR (Status)) {\r |
| 495 | //\r |
| 496 | // Remove DevicePath from ConInDev\r |
| 497 | //\r |
| 498 | ConPlatformUpdateDeviceVariable (\r |
| 499 | VarConsoleInpDev,\r |
| 500 | DevicePath,\r |
| 501 | DELETE\r |
| 502 | );\r |
| 503 | }\r |
| 504 | }\r |
| 505 | //\r |
| 506 | // Uninstall the Console Device GUIDs from Controller Handle\r |
| 507 | //\r |
| 508 | ConPlatformUnInstallProtocol (\r |
| 509 | This,\r |
| 510 | ControllerHandle,\r |
| 511 | &gEfiConsoleInDeviceGuid\r |
| 512 | );\r |
| 513 | \r |
| 514 | //\r |
| 515 | // Close the Simple Input Protocol\r |
| 516 | //\r |
| 517 | gBS->CloseProtocol (\r |
| 518 | ControllerHandle,\r |
| 519 | &gEfiSimpleTextInProtocolGuid,\r |
| 520 | This->DriverBindingHandle,\r |
| 521 | ControllerHandle\r |
| 522 | );\r |
| 523 | \r |
| 524 | return EFI_SUCCESS;\r |
| 525 | }\r |
| 526 | \r |
| 527 | EFI_STATUS\r |
| 528 | EFIAPI\r |
| 529 | ConPlatformTextOutDriverBindingStop (\r |
| 530 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 531 | IN EFI_HANDLE ControllerHandle,\r |
| 532 | IN UINTN NumberOfChildren,\r |
| 533 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 534 | )\r |
| 535 | /*++\r |
| 536 | \r |
| 537 | Routine Description:\r |
| 538 | \r |
| 539 | Arguments:\r |
| 540 | (Standard DriverBinding Protocol Stop() function)\r |
| 541 | \r |
| 542 | Returns:\r |
| 543 | \r |
| 544 | None\r |
| 545 | \r |
| 546 | --*/\r |
| 547 | {\r |
| 548 | EFI_STATUS Status;\r |
| 549 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 550 | \r |
| 551 | //\r |
| 552 | // hot plug device is not included into the console associated variables,\r |
| 553 | // so no need to check variable for those hot plug devices.\r |
| 554 | //\r |
| 555 | if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 556 | //\r |
| 557 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 558 | //\r |
| 559 | Status = gBS->OpenProtocol (\r |
| 560 | ControllerHandle,\r |
| 561 | &gEfiDevicePathProtocolGuid,\r |
| 562 | (VOID **) &DevicePath,\r |
| 563 | This->DriverBindingHandle,\r |
| 564 | ControllerHandle,\r |
| 565 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 566 | );\r |
| 567 | if (!EFI_ERROR (Status)) {\r |
| 568 | //\r |
| 569 | // Remove DevicePath from ConOutDev, and StdErrDev\r |
| 570 | //\r |
| 571 | ConPlatformUpdateDeviceVariable (\r |
| 572 | VarConsoleOutDev,\r |
| 573 | DevicePath,\r |
| 574 | DELETE\r |
| 575 | );\r |
| 576 | ConPlatformUpdateDeviceVariable (\r |
| 577 | VarErrorOutDev,\r |
| 578 | DevicePath,\r |
| 579 | DELETE\r |
| 580 | );\r |
| 581 | }\r |
| 582 | }\r |
| 583 | //\r |
| 584 | // Uninstall the Console Device GUIDs from Controller Handle\r |
| 585 | //\r |
| 586 | ConPlatformUnInstallProtocol (\r |
| 587 | This,\r |
| 588 | ControllerHandle,\r |
| 589 | &gEfiConsoleOutDeviceGuid\r |
| 590 | );\r |
| 591 | \r |
| 592 | ConPlatformUnInstallProtocol (\r |
| 593 | This,\r |
| 594 | ControllerHandle,\r |
| 595 | &gEfiStandardErrorDeviceGuid\r |
| 596 | );\r |
| 597 | \r |
| 598 | //\r |
| 599 | // Close the Simple Text Output Protocol\r |
| 600 | //\r |
| 601 | gBS->CloseProtocol (\r |
| 602 | ControllerHandle,\r |
| 603 | &gEfiSimpleTextOutProtocolGuid,\r |
| 604 | This->DriverBindingHandle,\r |
| 605 | ControllerHandle\r |
| 606 | );\r |
| 607 | \r |
| 608 | return EFI_SUCCESS;\r |
| 609 | }\r |
| 610 | \r |
| 611 | \r |
| 612 | VOID\r |
| 613 | ConPlatformUnInstallProtocol (\r |
| 614 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 615 | IN EFI_HANDLE Handle,\r |
| 616 | IN EFI_GUID *ProtocolGuid\r |
| 617 | )\r |
| 618 | {\r |
| 619 | EFI_STATUS Status;\r |
| 620 | \r |
| 621 | Status = gBS->OpenProtocol (\r |
| 622 | Handle,\r |
| 623 | ProtocolGuid,\r |
| 624 | NULL,\r |
| 625 | This->DriverBindingHandle,\r |
| 626 | Handle,\r |
| 627 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 628 | );\r |
| 629 | \r |
| 630 | if (!EFI_ERROR (Status)) {\r |
| 631 | gBS->UninstallMultipleProtocolInterfaces (\r |
| 632 | Handle,\r |
| 633 | ProtocolGuid,\r |
| 634 | NULL,\r |
| 635 | NULL\r |
| 636 | );\r |
| 637 | }\r |
| 638 | \r |
| 639 | return ;\r |
| 640 | }\r |
| 641 | \r |
| 642 | VOID *\r |
| 643 | ConPlatformGetVariable (\r |
| 644 | IN CHAR16 *Name\r |
| 645 | )\r |
| 646 | /*++\r |
| 647 | \r |
| 648 | Routine Description:\r |
| 649 | Read the EFI variable (Name) and return a dynamically allocated\r |
| 650 | buffer, and the size of the buffer. On failure return NULL.\r |
| 651 | \r |
| 652 | Arguments:\r |
| 653 | Name - String part of EFI variable name\r |
| 654 | \r |
| 655 | Returns:\r |
| 656 | Dynamically allocated memory that contains a copy of the EFI variable.\r |
| 657 | Caller is repsoncible freeing the buffer.\r |
| 658 | \r |
| 659 | NULL - Variable was not read\r |
| 660 | \r |
| 661 | --*/\r |
| 662 | {\r |
| 663 | EFI_STATUS Status;\r |
| 664 | VOID *Buffer;\r |
| 665 | UINTN BufferSize;\r |
| 666 | \r |
| 667 | BufferSize = 0;\r |
| 668 | Buffer = NULL;\r |
| 669 | \r |
| 670 | //\r |
| 671 | // Test to see if the variable exists. If it doesn't reuturn NULL\r |
| 672 | //\r |
| 673 | Status = gRT->GetVariable (\r |
| 674 | Name,\r |
| 675 | &gEfiGlobalVariableGuid,\r |
| 676 | NULL,\r |
| 677 | &BufferSize,\r |
| 678 | Buffer\r |
| 679 | );\r |
| 680 | \r |
| 681 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
| 682 | //\r |
| 683 | // Allocate the buffer to return\r |
| 684 | //\r |
| 685 | Buffer = AllocatePool (BufferSize);\r |
| 686 | if (Buffer == NULL) {\r |
| 687 | return NULL;\r |
| 688 | }\r |
| 689 | //\r |
| 690 | // Read variable into the allocated buffer.\r |
| 691 | //\r |
| 692 | Status = gRT->GetVariable (\r |
| 693 | Name,\r |
| 694 | &gEfiGlobalVariableGuid,\r |
| 695 | NULL,\r |
| 696 | &BufferSize,\r |
| 697 | Buffer\r |
| 698 | );\r |
| 699 | if (EFI_ERROR (Status)) {\r |
| 700 | FreePool (Buffer);\r |
| 701 | Buffer = NULL;\r |
| 702 | }\r |
| 703 | }\r |
| 704 | \r |
| 705 | return Buffer;\r |
| 706 | }\r |
| 707 | \r |
| 708 | EFI_STATUS\r |
| 709 | ConPlatformMatchDevicePaths (\r |
| 710 | IN EFI_DEVICE_PATH_PROTOCOL * Multi,\r |
| 711 | IN EFI_DEVICE_PATH_PROTOCOL * Single,\r |
| 712 | IN EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL,\r |
| 713 | IN BOOLEAN Delete\r |
| 714 | )\r |
| 715 | /*++\r |
| 716 | \r |
| 717 | Routine Description:\r |
| 718 | Function compares a device path data structure to that of all the nodes of a\r |
| 719 | second device path instance.\r |
| 720 | \r |
| 721 | Arguments:\r |
| 722 | Multi - A pointer to a multi-instance device path data structure.\r |
| 723 | \r |
| 724 | Single - A pointer to a single-instance device path data structure.\r |
| 725 | \r |
| 726 | NewDevicePath - If Delete is TRUE, this parameter must not be null, and it\r |
| 727 | points to the remaining device path data structure.\r |
| 728 | (remaining device path = Multi - Single.)\r |
| 729 | \r |
| 730 | Delete - If TRUE, means removing Single from Multi.\r |
| 731 | If FALSE, the routine just check whether Single matches\r |
| 732 | with any instance in Multi.\r |
| 733 | \r |
| 734 | Returns:\r |
| 735 | \r |
| 736 | The function returns EFI_SUCCESS if the Single is contained within Multi.\r |
| 737 | Otherwise, EFI_NOT_FOUND is returned.\r |
| 738 | \r |
| 739 | --*/\r |
| 740 | {\r |
| 741 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 742 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath1;\r |
| 743 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath2;\r |
| 744 | EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;\r |
| 745 | UINTN Size;\r |
| 746 | \r |
| 747 | //\r |
| 748 | // The passed in DevicePath should not be NULL\r |
| 749 | //\r |
| 750 | if ((!Multi) || (!Single)) {\r |
| 751 | return EFI_NOT_FOUND;\r |
| 752 | }\r |
| 753 | //\r |
| 754 | // if performing Delete operation, the NewDevicePath must not be NULL.\r |
| 755 | //\r |
| 756 | TempDevicePath1 = NULL;\r |
| 757 | \r |
| 758 | DevicePath = Multi;\r |
| 759 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r |
| 760 | \r |
| 761 | //\r |
| 762 | // search for the match of 'Single' in 'Multi'\r |
| 763 | //\r |
| 764 | while (DevicePathInst) {\r |
| 765 | if (CompareMem (Single, DevicePathInst, Size) == 0) {\r |
| 766 | if (!Delete) {\r |
| 767 | FreePool (DevicePathInst);\r |
| 768 | return EFI_SUCCESS;\r |
| 769 | }\r |
| 770 | } else {\r |
| 771 | if (Delete) {\r |
| 772 | TempDevicePath2 = AppendDevicePathInstance (\r |
| 773 | TempDevicePath1,\r |
| 774 | DevicePathInst\r |
| 775 | );\r |
| 776 | if (TempDevicePath1 != NULL) {\r |
| 777 | FreePool (TempDevicePath1);\r |
| 778 | }\r |
| 779 | TempDevicePath1 = TempDevicePath2;\r |
| 780 | }\r |
| 781 | }\r |
| 782 | \r |
| 783 | FreePool (DevicePathInst);\r |
| 784 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r |
| 785 | }\r |
| 786 | \r |
| 787 | if (Delete) {\r |
| 788 | *NewDevicePath = TempDevicePath1;\r |
| 789 | return EFI_SUCCESS;\r |
| 790 | }\r |
| 791 | \r |
| 792 | return EFI_NOT_FOUND;\r |
| 793 | }\r |
| 794 | \r |
| 795 | EFI_STATUS\r |
| 796 | ConPlatformUpdateDeviceVariable (\r |
| 797 | IN CHAR16 *VariableName,\r |
| 798 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r |
| 799 | IN CONPLATFORM_VAR_OPERATION Operation\r |
| 800 | )\r |
| 801 | /*++\r |
| 802 | \r |
| 803 | Routine Description:\r |
| 804 | \r |
| 805 | \r |
| 806 | Arguments:\r |
| 807 | \r |
| 808 | Returns:\r |
| 809 | \r |
| 810 | None\r |
| 811 | \r |
| 812 | --*/\r |
| 813 | {\r |
| 814 | EFI_STATUS Status;\r |
| 815 | EFI_DEVICE_PATH_PROTOCOL *VariableDevicePath;\r |
| 816 | EFI_DEVICE_PATH_PROTOCOL *NewVariableDevicePath;\r |
| 817 | \r |
| 818 | VariableDevicePath = NULL;\r |
| 819 | NewVariableDevicePath = NULL;\r |
| 820 | \r |
| 821 | //\r |
| 822 | // Get Variable according to variable name.\r |
| 823 | // The memory for Variable is allocated within ConPlatformGetVarible(),\r |
| 824 | // it is the caller's responsibility to free the memory before return.\r |
| 825 | //\r |
| 826 | VariableDevicePath = ConPlatformGetVariable (VariableName);\r |
| 827 | \r |
| 828 | if (Operation != DELETE) {\r |
| 829 | \r |
| 830 | Status = ConPlatformMatchDevicePaths (\r |
| 831 | VariableDevicePath,\r |
| 832 | DevicePath,\r |
| 833 | NULL,\r |
| 834 | FALSE\r |
| 835 | );\r |
| 836 | \r |
| 837 | if ((Operation == CHECK) || (!EFI_ERROR (Status))) {\r |
| 838 | //\r |
| 839 | // The device path is already in the variable\r |
| 840 | //\r |
| 841 | if (VariableDevicePath != NULL) {\r |
| 842 | FreePool (VariableDevicePath);\r |
| 843 | }\r |
| 844 | \r |
| 845 | return Status;\r |
| 846 | }\r |
| 847 | //\r |
| 848 | // The device path is not in variable. Append DevicePath to the\r |
| 849 | // environment variable that is a multi-instance device path.\r |
| 850 | //\r |
| 851 | Status = EFI_SUCCESS;\r |
| 852 | NewVariableDevicePath = AppendDevicePathInstance (\r |
| 853 | VariableDevicePath,\r |
| 854 | DevicePath\r |
| 855 | );\r |
| 856 | if (NewVariableDevicePath == NULL) {\r |
| 857 | Status = EFI_OUT_OF_RESOURCES;\r |
| 858 | }\r |
| 859 | \r |
| 860 | } else {\r |
| 861 | //\r |
| 862 | // Remove DevicePath from the environment variable that\r |
| 863 | // is a multi-instance device path.\r |
| 864 | //\r |
| 865 | Status = ConPlatformMatchDevicePaths (\r |
| 866 | VariableDevicePath,\r |
| 867 | DevicePath,\r |
| 868 | &NewVariableDevicePath,\r |
| 869 | TRUE\r |
| 870 | );\r |
| 871 | }\r |
| 872 | \r |
| 873 | if (VariableDevicePath != NULL) {\r |
| 874 | FreePool (VariableDevicePath);\r |
| 875 | }\r |
| 876 | \r |
| 877 | if (EFI_ERROR (Status)) {\r |
| 878 | return Status;\r |
| 879 | }\r |
| 880 | \r |
| 881 | Status = gRT->SetVariable (\r |
| 882 | VariableName,\r |
| 883 | &gEfiGlobalVariableGuid,\r |
| 884 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r |
| 885 | GetDevicePathSize (NewVariableDevicePath),\r |
| 886 | NewVariableDevicePath\r |
| 887 | );\r |
| 888 | \r |
| 889 | FreePool (NewVariableDevicePath);\r |
| 890 | \r |
| 891 | return Status;\r |
| 892 | }\r |
| 893 | \r |
| 894 | BOOLEAN\r |
| 895 | IsHotPlugDevice (\r |
| 896 | EFI_HANDLE DriverBindingHandle,\r |
| 897 | EFI_HANDLE ControllerHandle\r |
| 898 | )\r |
| 899 | {\r |
| 900 | EFI_STATUS Status;\r |
| 901 | \r |
| 902 | //\r |
| 903 | // HotPlugDeviceGuid indicates ControllerHandle stands for a hot plug device.\r |
| 904 | //\r |
| 905 | Status = gBS->OpenProtocol (\r |
| 906 | ControllerHandle,\r |
| 907 | &gEfiHotPlugDeviceGuid,\r |
| 908 | NULL,\r |
| 909 | DriverBindingHandle,\r |
| 910 | ControllerHandle,\r |
| 911 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 912 | );\r |
| 913 | if (EFI_ERROR (Status)) {\r |
| 914 | return FALSE;\r |
| 915 | }\r |
| 916 | \r |
| 917 | return TRUE;\r |
| 918 | }\r |
projects / mirror_edk2.git / blame