| fb0b259e |
1 | /** @file\r |
| 2 | Console Platfrom DXE Driver, install Console protocols.\r |
| 95276127 |
3 | \r |
| fb0b259e |
4 | Copyright (c) 2006 - 2007, Intel Corporation. <BR>\r |
| 95276127 |
5 | All rights reserved. This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r |
| 8 | http://opensource.org/licenses/bsd-license.php\r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | \r |
| fb0b259e |
13 | **/\r |
| 95276127 |
14 | \r |
| 859b72fa |
15 | #include <ConPlatform.h>\r |
| 95276127 |
16 | \r |
| 95276127 |
17 | \r |
| 18 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextInDriverBinding = {\r |
| 19 | ConPlatformTextInDriverBindingSupported,\r |
| 20 | ConPlatformTextInDriverBindingStart,\r |
| 21 | ConPlatformTextInDriverBindingStop,\r |
| 22 | 0xa,\r |
| 23 | NULL,\r |
| 24 | NULL\r |
| 25 | };\r |
| 26 | \r |
| 27 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextOutDriverBinding = {\r |
| 28 | ConPlatformTextOutDriverBindingSupported,\r |
| 29 | ConPlatformTextOutDriverBindingStart,\r |
| 30 | ConPlatformTextOutDriverBindingStop,\r |
| 31 | 0xa,\r |
| 32 | NULL,\r |
| 33 | NULL\r |
| 34 | };\r |
| 35 | \r |
| 36 | /**\r |
| 37 | The user Entry Point for module ConPlatform. The user code starts with this function.\r |
| 38 | \r |
| c62a593c |
39 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r |
| 95276127 |
40 | @param[in] SystemTable A pointer to the EFI System Table.\r |
| c62a593c |
41 | \r |
| 95276127 |
42 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
| 43 | @retval other Some error occurs when executing this entry point.\r |
| 44 | \r |
| 45 | **/\r |
| 46 | EFI_STATUS\r |
| 47 | EFIAPI\r |
| 48 | InitializeConPlatform(\r |
| 49 | IN EFI_HANDLE ImageHandle,\r |
| 50 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 51 | )\r |
| 52 | {\r |
| 53 | EFI_STATUS Status;\r |
| 54 | \r |
| 55 | //\r |
| 56 | // Install driver model protocol(s).\r |
| 57 | //\r |
| 5bca971e |
58 | Status = EfiLibInstallDriverBindingComponentName2 (\r |
| 95276127 |
59 | ImageHandle,\r |
| 60 | SystemTable,\r |
| 61 | &gConPlatformTextInDriverBinding,\r |
| 62 | ImageHandle,\r |
| 63 | &gConPlatformComponentName,\r |
| 5bca971e |
64 | &gConPlatformComponentName2\r |
| 95276127 |
65 | );\r |
| 66 | ASSERT_EFI_ERROR (Status);\r |
| 67 | \r |
| 5bca971e |
68 | Status = EfiLibInstallDriverBindingComponentName2 (\r |
| 95276127 |
69 | ImageHandle,\r |
| 70 | SystemTable,\r |
| 71 | &gConPlatformTextOutDriverBinding,\r |
| 72 | NULL,\r |
| 73 | &gConPlatformComponentName,\r |
| 5bca971e |
74 | &gConPlatformComponentName2\r |
| 95276127 |
75 | );\r |
| 76 | ASSERT_EFI_ERROR (Status);\r |
| 77 | \r |
| 78 | \r |
| 79 | return Status;\r |
| 80 | }\r |
| 81 | \r |
| 82 | \r |
| 83 | EFI_STATUS\r |
| 84 | EFIAPI\r |
| 85 | ConPlatformTextInDriverBindingSupported (\r |
| 86 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 87 | IN EFI_HANDLE ControllerHandle,\r |
| 88 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 89 | )\r |
| 90 | /*++\r |
| 91 | \r |
| 92 | Routine Description:\r |
| 93 | Supported\r |
| 94 | \r |
| 95 | Arguments:\r |
| 96 | (Standard DriverBinding Protocol Supported() function)\r |
| 97 | \r |
| 98 | Returns:\r |
| 99 | \r |
| 100 | None\r |
| 101 | \r |
| 102 | --*/\r |
| 103 | {\r |
| 104 | return ConPlatformDriverBindingSupported (\r |
| 105 | This,\r |
| 106 | ControllerHandle,\r |
| 107 | RemainingDevicePath,\r |
| 108 | &gEfiSimpleTextInProtocolGuid\r |
| 109 | );\r |
| 110 | }\r |
| 111 | \r |
| 112 | EFI_STATUS\r |
| 113 | EFIAPI\r |
| 114 | ConPlatformTextOutDriverBindingSupported (\r |
| 115 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 116 | IN EFI_HANDLE ControllerHandle,\r |
| 117 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 118 | )\r |
| 119 | /*++\r |
| 120 | \r |
| 121 | Routine Description:\r |
| 122 | Supported\r |
| 123 | \r |
| 124 | Arguments:\r |
| 125 | (Standard DriverBinding Protocol Supported() function)\r |
| 126 | \r |
| 127 | Returns:\r |
| 128 | \r |
| 129 | None\r |
| 130 | \r |
| 131 | --*/\r |
| 132 | {\r |
| 133 | return ConPlatformDriverBindingSupported (\r |
| 134 | This,\r |
| 135 | ControllerHandle,\r |
| 136 | RemainingDevicePath,\r |
| 137 | &gEfiSimpleTextOutProtocolGuid\r |
| 138 | );\r |
| 139 | }\r |
| 140 | \r |
| 141 | EFI_STATUS\r |
| 142 | ConPlatformDriverBindingSupported (\r |
| 143 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 144 | IN EFI_HANDLE ControllerHandle,\r |
| 145 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath,\r |
| 146 | IN EFI_GUID *ProtocolGuid\r |
| 147 | )\r |
| 148 | /*++\r |
| 149 | \r |
| 150 | Routine Description:\r |
| 151 | Supported\r |
| 152 | \r |
| 153 | Arguments:\r |
| 154 | (Standard DriverBinding Protocol Supported() function)\r |
| 155 | \r |
| 156 | Returns:\r |
| 157 | \r |
| 158 | None\r |
| 159 | \r |
| 160 | --*/\r |
| 161 | {\r |
| 162 | EFI_STATUS Status;\r |
| 163 | VOID *Interface;\r |
| 164 | \r |
| 165 | //\r |
| 166 | // Test to see if this is a physical device by checking to see if\r |
| 167 | // it has a Device Path Protocol\r |
| 168 | //\r |
| 169 | Status = gBS->OpenProtocol (\r |
| 170 | ControllerHandle,\r |
| 171 | &gEfiDevicePathProtocolGuid,\r |
| 172 | NULL,\r |
| 173 | This->DriverBindingHandle,\r |
| 174 | ControllerHandle,\r |
| 175 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 176 | );\r |
| 177 | if (EFI_ERROR (Status)) {\r |
| 178 | return Status;\r |
| 179 | }\r |
| 180 | //\r |
| 181 | // Test to see if this device supports the Simple Text Output Protocol\r |
| 182 | //\r |
| 183 | Status = gBS->OpenProtocol (\r |
| 184 | ControllerHandle,\r |
| 185 | ProtocolGuid,\r |
| 186 | (VOID **) &Interface,\r |
| 187 | This->DriverBindingHandle,\r |
| 188 | ControllerHandle,\r |
| 189 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 190 | );\r |
| 191 | if (EFI_ERROR (Status)) {\r |
| 192 | return Status;\r |
| 193 | }\r |
| 194 | \r |
| 195 | gBS->CloseProtocol (\r |
| 196 | ControllerHandle,\r |
| 197 | ProtocolGuid,\r |
| 198 | This->DriverBindingHandle,\r |
| 199 | ControllerHandle\r |
| 200 | );\r |
| 201 | \r |
| 202 | return EFI_SUCCESS;\r |
| 203 | }\r |
| 204 | \r |
| 205 | EFI_STATUS\r |
| 206 | EFIAPI\r |
| 207 | ConPlatformTextInDriverBindingStart (\r |
| 208 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 209 | IN EFI_HANDLE ControllerHandle,\r |
| 210 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 211 | )\r |
| 212 | /*++\r |
| 213 | \r |
| 214 | Routine Description:\r |
| 215 | \r |
| 216 | \r |
| 217 | Arguments:\r |
| 218 | (Standard DriverBinding Protocol Start() function)\r |
| 219 | \r |
| 220 | Returns:\r |
| 221 | \r |
| 222 | \r |
| 223 | --*/\r |
| 224 | {\r |
| 225 | EFI_STATUS Status;\r |
| 226 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 227 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;\r |
| 228 | \r |
| 229 | //\r |
| 230 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 231 | //\r |
| 232 | Status = gBS->OpenProtocol (\r |
| 233 | ControllerHandle,\r |
| 234 | &gEfiDevicePathProtocolGuid,\r |
| 235 | (VOID **) &DevicePath,\r |
| 236 | This->DriverBindingHandle,\r |
| 237 | ControllerHandle,\r |
| 238 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 239 | );\r |
| 240 | if (EFI_ERROR (Status)) {\r |
| 241 | return Status;\r |
| 242 | }\r |
| 243 | //\r |
| 244 | // Open the Simple Input Protocol BY_DRIVER\r |
| 245 | //\r |
| 246 | Status = gBS->OpenProtocol (\r |
| 247 | ControllerHandle,\r |
| 248 | &gEfiSimpleTextInProtocolGuid,\r |
| 249 | (VOID **) &TextIn,\r |
| 250 | This->DriverBindingHandle,\r |
| 251 | ControllerHandle,\r |
| 252 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 253 | );\r |
| 254 | if (EFI_ERROR (Status)) {\r |
| 255 | return Status;\r |
| 256 | }\r |
| 257 | //\r |
| 258 | // Check the device handle, if it is a hot plug device,\r |
| 259 | // do not put the device path into ConInDev, and install\r |
| 260 | // gEfiConsoleInDeviceGuid to the device handle directly.\r |
| 261 | // The policy is, make hot plug device plug in and play immediately.\r |
| 262 | //\r |
| 263 | if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 264 | gBS->InstallMultipleProtocolInterfaces (\r |
| 265 | &ControllerHandle,\r |
| 266 | &gEfiConsoleInDeviceGuid,\r |
| 267 | NULL,\r |
| 268 | NULL\r |
| 269 | );\r |
| 270 | } else {\r |
| 271 | //\r |
| 272 | // Append the device path to the ConInDev environment variable\r |
| 273 | //\r |
| 274 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
275 | L"ConInDev",\r |
| 95276127 |
276 | DevicePath,\r |
| 277 | APPEND\r |
| 278 | );\r |
| 279 | \r |
| 280 | //\r |
| 281 | // If the device path is an instance in the ConIn environment variable,\r |
| 282 | // then install EfiConsoleInDeviceGuid onto ControllerHandle\r |
| 283 | //\r |
| 284 | Status = ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
285 | L"ConIn",\r |
| 95276127 |
286 | DevicePath,\r |
| 287 | CHECK\r |
| 288 | );\r |
| 289 | \r |
| 290 | if (!EFI_ERROR (Status)) {\r |
| 291 | gBS->InstallMultipleProtocolInterfaces (\r |
| 292 | &ControllerHandle,\r |
| 293 | &gEfiConsoleInDeviceGuid,\r |
| 294 | NULL,\r |
| 295 | NULL\r |
| 296 | );\r |
| 297 | } else {\r |
| 298 | gBS->CloseProtocol (\r |
| 299 | ControllerHandle,\r |
| 300 | &gEfiSimpleTextInProtocolGuid,\r |
| 301 | This->DriverBindingHandle,\r |
| 302 | ControllerHandle\r |
| 303 | );\r |
| 304 | }\r |
| 305 | }\r |
| 306 | \r |
| 307 | return EFI_SUCCESS;\r |
| 308 | }\r |
| 309 | \r |
| 310 | EFI_STATUS\r |
| 311 | EFIAPI\r |
| 312 | ConPlatformTextOutDriverBindingStart (\r |
| 313 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 314 | IN EFI_HANDLE ControllerHandle,\r |
| 315 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 316 | )\r |
| 317 | /*++\r |
| 318 | \r |
| 319 | Routine Description:\r |
| 320 | \r |
| 321 | \r |
| 322 | Arguments:\r |
| 323 | (Standard DriverBinding Protocol Start() function)\r |
| 324 | \r |
| 325 | Returns:\r |
| 326 | \r |
| 327 | \r |
| 328 | --*/\r |
| 329 | {\r |
| 330 | EFI_STATUS Status;\r |
| 331 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 332 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;\r |
| 333 | BOOLEAN NeedClose;\r |
| 334 | \r |
| 335 | NeedClose = TRUE;\r |
| 336 | \r |
| 337 | //\r |
| 338 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 339 | //\r |
| 340 | Status = gBS->OpenProtocol (\r |
| 341 | ControllerHandle,\r |
| 342 | &gEfiDevicePathProtocolGuid,\r |
| 343 | (VOID **) &DevicePath,\r |
| 344 | This->DriverBindingHandle,\r |
| 345 | ControllerHandle,\r |
| 346 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 347 | );\r |
| 348 | if (EFI_ERROR (Status)) {\r |
| 349 | return Status;\r |
| 350 | }\r |
| 351 | //\r |
| 352 | // Open the Simple Text Output Protocol BY_DRIVER\r |
| 353 | //\r |
| 354 | Status = gBS->OpenProtocol (\r |
| 355 | ControllerHandle,\r |
| 356 | &gEfiSimpleTextOutProtocolGuid,\r |
| 357 | (VOID **) &TextOut,\r |
| 358 | This->DriverBindingHandle,\r |
| 359 | ControllerHandle,\r |
| 360 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 361 | );\r |
| 362 | if (EFI_ERROR (Status)) {\r |
| 363 | return Status;\r |
| 364 | }\r |
| 365 | //\r |
| 366 | // Check the device handle, if it is a hot plug device,\r |
| 367 | // do not put the device path into ConOutDev and StdErrDev,\r |
| 368 | // and install gEfiConsoleOutDeviceGuid to the device handle directly.\r |
| 369 | // The policy is, make hot plug device plug in and play immediately.\r |
| 370 | //\r |
| 371 | if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 372 | gBS->InstallMultipleProtocolInterfaces (\r |
| 373 | &ControllerHandle,\r |
| 374 | &gEfiConsoleOutDeviceGuid,\r |
| 375 | NULL,\r |
| 376 | NULL\r |
| 377 | );\r |
| 378 | } else {\r |
| 379 | //\r |
| 380 | // Append the device path to the ConOutDev environment variable\r |
| 381 | //\r |
| 382 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
383 | L"ConOutDev",\r |
| 95276127 |
384 | DevicePath,\r |
| 385 | APPEND\r |
| 386 | );\r |
| 387 | //\r |
| 388 | // Append the device path to the StdErrDev environment variable\r |
| 389 | //\r |
| 390 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
391 | L"ErrOutDev",\r |
| 95276127 |
392 | DevicePath,\r |
| 393 | APPEND\r |
| 394 | );\r |
| 395 | \r |
| 396 | //\r |
| 397 | // If the device path is an instance in the ConOut environment variable,\r |
| 398 | // then install EfiConsoleOutDeviceGuid onto ControllerHandle\r |
| 399 | //\r |
| 400 | Status = ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
401 | L"ConOut",\r |
| 95276127 |
402 | DevicePath,\r |
| 403 | CHECK\r |
| 404 | );\r |
| 405 | \r |
| 406 | if (!EFI_ERROR (Status)) {\r |
| 407 | NeedClose = FALSE;\r |
| 408 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 409 | &ControllerHandle,\r |
| 410 | &gEfiConsoleOutDeviceGuid,\r |
| 411 | NULL,\r |
| 412 | NULL\r |
| 413 | );\r |
| 414 | }\r |
| 415 | //\r |
| 416 | // If the device path is an instance in the StdErr environment variable,\r |
| 417 | // then install EfiStandardErrorDeviceGuid onto ControllerHandle\r |
| 418 | //\r |
| 419 | Status = ConPlatformUpdateDeviceVariable (\r |
| 244071a6 |
420 | L"ErrOut",\r |
| 95276127 |
421 | DevicePath,\r |
| 422 | CHECK\r |
| 423 | );\r |
| 424 | if (!EFI_ERROR (Status)) {\r |
| 425 | NeedClose = FALSE;\r |
| 426 | gBS->InstallMultipleProtocolInterfaces (\r |
| 427 | &ControllerHandle,\r |
| 428 | &gEfiStandardErrorDeviceGuid,\r |
| 429 | NULL,\r |
| 430 | NULL\r |
| 431 | );\r |
| 432 | }\r |
| 433 | \r |
| 434 | if (NeedClose) {\r |
| 435 | gBS->CloseProtocol (\r |
| 436 | ControllerHandle,\r |
| 437 | &gEfiSimpleTextOutProtocolGuid,\r |
| 438 | This->DriverBindingHandle,\r |
| 439 | ControllerHandle\r |
| 440 | );\r |
| 441 | }\r |
| 442 | }\r |
| 443 | \r |
| 444 | return EFI_SUCCESS;\r |
| 445 | }\r |
| 446 | \r |
| 447 | EFI_STATUS\r |
| 448 | EFIAPI\r |
| 449 | ConPlatformTextInDriverBindingStop (\r |
| 450 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 451 | IN EFI_HANDLE ControllerHandle,\r |
| 452 | IN UINTN NumberOfChildren,\r |
| 453 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 454 | )\r |
| 455 | /*++\r |
| 456 | \r |
| 457 | Routine Description:\r |
| 458 | \r |
| 459 | Arguments:\r |
| 460 | (Standard DriverBinding Protocol Stop() function)\r |
| 461 | \r |
| 462 | Returns:\r |
| 463 | \r |
| 464 | None\r |
| 465 | \r |
| 466 | --*/\r |
| 467 | {\r |
| 468 | EFI_STATUS Status;\r |
| 469 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 470 | \r |
| 471 | //\r |
| 472 | // hot plug device is not included into the console associated variables,\r |
| 473 | // so no need to check variable for those hot plug devices.\r |
| 474 | //\r |
| 475 | if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 476 | //\r |
| 477 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 478 | //\r |
| 479 | Status = gBS->OpenProtocol (\r |
| 480 | ControllerHandle,\r |
| 481 | &gEfiDevicePathProtocolGuid,\r |
| 482 | (VOID **) &DevicePath,\r |
| 483 | This->DriverBindingHandle,\r |
| 484 | ControllerHandle,\r |
| 485 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 486 | );\r |
| 487 | if (!EFI_ERROR (Status)) {\r |
| 488 | //\r |
| 489 | // Remove DevicePath from ConInDev\r |
| 490 | //\r |
| 491 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
492 | L"ConInDev",\r |
| 95276127 |
493 | DevicePath,\r |
| 494 | DELETE\r |
| 495 | );\r |
| 496 | }\r |
| 497 | }\r |
| 498 | //\r |
| 499 | // Uninstall the Console Device GUIDs from Controller Handle\r |
| 500 | //\r |
| 501 | ConPlatformUnInstallProtocol (\r |
| 502 | This,\r |
| 503 | ControllerHandle,\r |
| 504 | &gEfiConsoleInDeviceGuid\r |
| 505 | );\r |
| 506 | \r |
| 507 | //\r |
| 508 | // Close the Simple Input Protocol\r |
| 509 | //\r |
| 510 | gBS->CloseProtocol (\r |
| 511 | ControllerHandle,\r |
| 512 | &gEfiSimpleTextInProtocolGuid,\r |
| 513 | This->DriverBindingHandle,\r |
| 514 | ControllerHandle\r |
| 515 | );\r |
| 516 | \r |
| 517 | return EFI_SUCCESS;\r |
| 518 | }\r |
| 519 | \r |
| 520 | EFI_STATUS\r |
| 521 | EFIAPI\r |
| 522 | ConPlatformTextOutDriverBindingStop (\r |
| 523 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 524 | IN EFI_HANDLE ControllerHandle,\r |
| 525 | IN UINTN NumberOfChildren,\r |
| 526 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 527 | )\r |
| 528 | /*++\r |
| 529 | \r |
| 530 | Routine Description:\r |
| 531 | \r |
| 532 | Arguments:\r |
| 533 | (Standard DriverBinding Protocol Stop() function)\r |
| 534 | \r |
| 535 | Returns:\r |
| 536 | \r |
| 537 | None\r |
| 538 | \r |
| 539 | --*/\r |
| 540 | {\r |
| 541 | EFI_STATUS Status;\r |
| 542 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| 543 | \r |
| 544 | //\r |
| 545 | // hot plug device is not included into the console associated variables,\r |
| 546 | // so no need to check variable for those hot plug devices.\r |
| 547 | //\r |
| 548 | if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {\r |
| 549 | //\r |
| 550 | // Get the Device Path Protocol so the environment variables can be updated\r |
| 551 | //\r |
| 552 | Status = gBS->OpenProtocol (\r |
| 553 | ControllerHandle,\r |
| 554 | &gEfiDevicePathProtocolGuid,\r |
| 555 | (VOID **) &DevicePath,\r |
| 556 | This->DriverBindingHandle,\r |
| 557 | ControllerHandle,\r |
| 558 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 559 | );\r |
| 560 | if (!EFI_ERROR (Status)) {\r |
| 561 | //\r |
| 562 | // Remove DevicePath from ConOutDev, and StdErrDev\r |
| 563 | //\r |
| 564 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
565 | L"ConOutDev",\r |
| 95276127 |
566 | DevicePath,\r |
| 567 | DELETE\r |
| 568 | );\r |
| 569 | ConPlatformUpdateDeviceVariable (\r |
| ff37790d |
570 | L"ErrOutDev",\r |
| 95276127 |
571 | DevicePath,\r |
| 572 | DELETE\r |
| 573 | );\r |
| 574 | }\r |
| 575 | }\r |
| 576 | //\r |
| 577 | // Uninstall the Console Device GUIDs from Controller Handle\r |
| 578 | //\r |
| 579 | ConPlatformUnInstallProtocol (\r |
| 580 | This,\r |
| 581 | ControllerHandle,\r |
| 582 | &gEfiConsoleOutDeviceGuid\r |
| 583 | );\r |
| 584 | \r |
| 585 | ConPlatformUnInstallProtocol (\r |
| 586 | This,\r |
| 587 | ControllerHandle,\r |
| 588 | &gEfiStandardErrorDeviceGuid\r |
| 589 | );\r |
| 590 | \r |
| 591 | //\r |
| 592 | // Close the Simple Text Output Protocol\r |
| 593 | //\r |
| 594 | gBS->CloseProtocol (\r |
| 595 | ControllerHandle,\r |
| 596 | &gEfiSimpleTextOutProtocolGuid,\r |
| 597 | This->DriverBindingHandle,\r |
| 598 | ControllerHandle\r |
| 599 | );\r |
| 600 | \r |
| 601 | return EFI_SUCCESS;\r |
| 602 | }\r |
| 603 | \r |
| 604 | \r |
| 605 | VOID\r |
| 606 | ConPlatformUnInstallProtocol (\r |
| 607 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 608 | IN EFI_HANDLE Handle,\r |
| 609 | IN EFI_GUID *ProtocolGuid\r |
| 610 | )\r |
| 611 | {\r |
| 612 | EFI_STATUS Status;\r |
| 613 | \r |
| 614 | Status = gBS->OpenProtocol (\r |
| 615 | Handle,\r |
| 616 | ProtocolGuid,\r |
| 617 | NULL,\r |
| 618 | This->DriverBindingHandle,\r |
| 619 | Handle,\r |
| 620 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 621 | );\r |
| 622 | \r |
| 623 | if (!EFI_ERROR (Status)) {\r |
| 624 | gBS->UninstallMultipleProtocolInterfaces (\r |
| 625 | Handle,\r |
| 626 | ProtocolGuid,\r |
| 627 | NULL,\r |
| 628 | NULL\r |
| 629 | );\r |
| 630 | }\r |
| 631 | \r |
| 632 | return ;\r |
| 633 | }\r |
| 634 | \r |
| 635 | VOID *\r |
| 636 | ConPlatformGetVariable (\r |
| 637 | IN CHAR16 *Name\r |
| 638 | )\r |
| 639 | /*++\r |
| 640 | \r |
| 641 | Routine Description:\r |
| 642 | Read the EFI variable (Name) and return a dynamically allocated\r |
| 643 | buffer, and the size of the buffer. On failure return NULL.\r |
| 644 | \r |
| 645 | Arguments:\r |
| 646 | Name - String part of EFI variable name\r |
| 647 | \r |
| 648 | Returns:\r |
| 649 | Dynamically allocated memory that contains a copy of the EFI variable.\r |
| 650 | Caller is repsoncible freeing the buffer.\r |
| 651 | \r |
| 652 | NULL - Variable was not read\r |
| 653 | \r |
| 654 | --*/\r |
| 655 | {\r |
| 656 | EFI_STATUS Status;\r |
| 657 | VOID *Buffer;\r |
| 658 | UINTN BufferSize;\r |
| 659 | \r |
| 660 | BufferSize = 0;\r |
| 661 | Buffer = NULL;\r |
| 662 | \r |
| 663 | //\r |
| 664 | // Test to see if the variable exists. If it doesn't reuturn NULL\r |
| 665 | //\r |
| 666 | Status = gRT->GetVariable (\r |
| 667 | Name,\r |
| 668 | &gEfiGlobalVariableGuid,\r |
| 669 | NULL,\r |
| 670 | &BufferSize,\r |
| 671 | Buffer\r |
| 672 | );\r |
| 673 | \r |
| 674 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
| 675 | //\r |
| 676 | // Allocate the buffer to return\r |
| 677 | //\r |
| 678 | Buffer = AllocatePool (BufferSize);\r |
| 679 | if (Buffer == NULL) {\r |
| 680 | return NULL;\r |
| 681 | }\r |
| 682 | //\r |
| 683 | // Read variable into the allocated buffer.\r |
| 684 | //\r |
| 685 | Status = gRT->GetVariable (\r |
| 686 | Name,\r |
| 687 | &gEfiGlobalVariableGuid,\r |
| 688 | NULL,\r |
| 689 | &BufferSize,\r |
| 690 | Buffer\r |
| 691 | );\r |
| 692 | if (EFI_ERROR (Status)) {\r |
| 693 | FreePool (Buffer);\r |
| 694 | Buffer = NULL;\r |
| 695 | }\r |
| 696 | }\r |
| 697 | \r |
| 698 | return Buffer;\r |
| 699 | }\r |
| 700 | \r |
| 701 | EFI_STATUS\r |
| 702 | ConPlatformMatchDevicePaths (\r |
| 703 | IN EFI_DEVICE_PATH_PROTOCOL * Multi,\r |
| 704 | IN EFI_DEVICE_PATH_PROTOCOL * Single,\r |
| 705 | IN EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL,\r |
| 706 | IN BOOLEAN Delete\r |
| 707 | )\r |
| 708 | /*++\r |
| 709 | \r |
| 710 | Routine Description:\r |
| 711 | Function compares a device path data structure to that of all the nodes of a\r |
| 712 | second device path instance.\r |
| 713 | \r |
| 714 | Arguments:\r |
| 715 | Multi - A pointer to a multi-instance device path data structure.\r |
| 716 | \r |
| 717 | Single - A pointer to a single-instance device path data structure.\r |
| 718 | \r |
| 719 | NewDevicePath - If Delete is TRUE, this parameter must not be null, and it\r |
| 720 | points to the remaining device path data structure.\r |
| 721 | (remaining device path = Multi - Single.)\r |
| 722 | \r |
| 723 | Delete - If TRUE, means removing Single from Multi.\r |
| 724 | If FALSE, the routine just check whether Single matches\r |
| 725 | with any instance in Multi.\r |
| 726 | \r |
| 727 | Returns:\r |
| 728 | \r |
| 729 | The function returns EFI_SUCCESS if the Single is contained within Multi.\r |
| 730 | Otherwise, EFI_NOT_FOUND is returned.\r |
| 731 | \r |
| 732 | --*/\r |
| 733 | {\r |
| 734 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
| c62a593c |
735 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r |
| 95276127 |
736 | EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;\r |
| 737 | UINTN Size;\r |
| 738 | \r |
| 739 | //\r |
| 740 | // The passed in DevicePath should not be NULL\r |
| 741 | //\r |
| 742 | if ((!Multi) || (!Single)) {\r |
| 743 | return EFI_NOT_FOUND;\r |
| 744 | }\r |
| 745 | //\r |
| 746 | // if performing Delete operation, the NewDevicePath must not be NULL.\r |
| 747 | //\r |
| c62a593c |
748 | TempDevicePath = NULL;\r |
| 95276127 |
749 | \r |
| 750 | DevicePath = Multi;\r |
| 751 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r |
| 752 | \r |
| 753 | //\r |
| 754 | // search for the match of 'Single' in 'Multi'\r |
| 755 | //\r |
| 756 | while (DevicePathInst) {\r |
| 757 | if (CompareMem (Single, DevicePathInst, Size) == 0) {\r |
| 758 | if (!Delete) {\r |
| 759 | FreePool (DevicePathInst);\r |
| 760 | return EFI_SUCCESS;\r |
| 761 | }\r |
| 762 | } else {\r |
| 763 | if (Delete) {\r |
| c62a593c |
764 | TempDevicePath = AppendDevicePathInstance (\r |
| 765 | NULL,\r |
| 95276127 |
766 | DevicePathInst\r |
| 767 | );\r |
| 95276127 |
768 | }\r |
| 769 | }\r |
| 770 | \r |
| 771 | FreePool (DevicePathInst);\r |
| 772 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r |
| 773 | }\r |
| 774 | \r |
| 775 | if (Delete) {\r |
| c62a593c |
776 | *NewDevicePath = TempDevicePath;\r |
| 95276127 |
777 | return EFI_SUCCESS;\r |
| 778 | }\r |
| 779 | \r |
| 780 | return EFI_NOT_FOUND;\r |
| 781 | }\r |
| 782 | \r |
| 783 | EFI_STATUS\r |
| 784 | ConPlatformUpdateDeviceVariable (\r |
| 785 | IN CHAR16 *VariableName,\r |
| 786 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r |
| 787 | IN CONPLATFORM_VAR_OPERATION Operation\r |
| 788 | )\r |
| 789 | /*++\r |
| 790 | \r |
| 791 | Routine Description:\r |
| 792 | \r |
| 793 | \r |
| 794 | Arguments:\r |
| 795 | \r |
| 796 | Returns:\r |
| 797 | \r |
| 798 | None\r |
| 799 | \r |
| 800 | --*/\r |
| 801 | {\r |
| 802 | EFI_STATUS Status;\r |
| 803 | EFI_DEVICE_PATH_PROTOCOL *VariableDevicePath;\r |
| 804 | EFI_DEVICE_PATH_PROTOCOL *NewVariableDevicePath;\r |
| 805 | \r |
| 806 | VariableDevicePath = NULL;\r |
| 807 | NewVariableDevicePath = NULL;\r |
| 808 | \r |
| 809 | //\r |
| 810 | // Get Variable according to variable name.\r |
| 811 | // The memory for Variable is allocated within ConPlatformGetVarible(),\r |
| 812 | // it is the caller's responsibility to free the memory before return.\r |
| 813 | //\r |
| 814 | VariableDevicePath = ConPlatformGetVariable (VariableName);\r |
| 815 | \r |
| 816 | if (Operation != DELETE) {\r |
| 817 | \r |
| 818 | Status = ConPlatformMatchDevicePaths (\r |
| 819 | VariableDevicePath,\r |
| 820 | DevicePath,\r |
| 821 | NULL,\r |
| 822 | FALSE\r |
| 823 | );\r |
| 824 | \r |
| 825 | if ((Operation == CHECK) || (!EFI_ERROR (Status))) {\r |
| 826 | //\r |
| 827 | // The device path is already in the variable\r |
| 828 | //\r |
| 829 | if (VariableDevicePath != NULL) {\r |
| 830 | FreePool (VariableDevicePath);\r |
| 831 | }\r |
| 832 | \r |
| 833 | return Status;\r |
| 834 | }\r |
| 835 | //\r |
| 836 | // The device path is not in variable. Append DevicePath to the\r |
| 837 | // environment variable that is a multi-instance device path.\r |
| 838 | //\r |
| 839 | Status = EFI_SUCCESS;\r |
| 840 | NewVariableDevicePath = AppendDevicePathInstance (\r |
| 841 | VariableDevicePath,\r |
| 842 | DevicePath\r |
| 843 | );\r |
| 844 | if (NewVariableDevicePath == NULL) {\r |
| 845 | Status = EFI_OUT_OF_RESOURCES;\r |
| 846 | }\r |
| 847 | \r |
| 848 | } else {\r |
| 849 | //\r |
| 850 | // Remove DevicePath from the environment variable that\r |
| 851 | // is a multi-instance device path.\r |
| 852 | //\r |
| 853 | Status = ConPlatformMatchDevicePaths (\r |
| 854 | VariableDevicePath,\r |
| 855 | DevicePath,\r |
| 856 | &NewVariableDevicePath,\r |
| 857 | TRUE\r |
| 858 | );\r |
| 859 | }\r |
| 860 | \r |
| 861 | if (VariableDevicePath != NULL) {\r |
| 862 | FreePool (VariableDevicePath);\r |
| 863 | }\r |
| 864 | \r |
| 865 | if (EFI_ERROR (Status)) {\r |
| 866 | return Status;\r |
| 867 | }\r |
| 868 | \r |
| c62a593c |
869 | if (NewVariableDevicePath != NULL) {\r |
| 870 | Status = gRT->SetVariable (\r |
| 871 | VariableName,\r |
| 872 | &gEfiGlobalVariableGuid,\r |
| 873 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r |
| 874 | GetDevicePathSize (NewVariableDevicePath),\r |
| 875 | NewVariableDevicePath\r |
| 876 | );\r |
| 95276127 |
877 | \r |
| c62a593c |
878 | FreePool (NewVariableDevicePath);\r |
| 879 | }\r |
| 95276127 |
880 | \r |
| 881 | return Status;\r |
| 882 | }\r |
| 883 | \r |
| 884 | BOOLEAN\r |
| 885 | IsHotPlugDevice (\r |
| 886 | EFI_HANDLE DriverBindingHandle,\r |
| 887 | EFI_HANDLE ControllerHandle\r |
| 888 | )\r |
| 889 | {\r |
| 890 | EFI_STATUS Status;\r |
| 891 | \r |
| 892 | //\r |
| 893 | // HotPlugDeviceGuid indicates ControllerHandle stands for a hot plug device.\r |
| 894 | //\r |
| 895 | Status = gBS->OpenProtocol (\r |
| 896 | ControllerHandle,\r |
| 897 | &gEfiHotPlugDeviceGuid,\r |
| 898 | NULL,\r |
| 899 | DriverBindingHandle,\r |
| 900 | ControllerHandle,\r |
| 901 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 902 | );\r |
| 903 | if (EFI_ERROR (Status)) {\r |
| 904 | return FALSE;\r |
| 905 | }\r |
| 906 | \r |
| 907 | return TRUE;\r |
| 908 | }\r |
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