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fb0b259e | 1 | /** @file\r |
dfe687ca | 2 | Console Platform DXE Driver, install Console Device Guids and update Console\r |
9359e53f | 3 | Environment Variables.\r |
95276127 | 4 | \r |
d1102dba | 5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 6 | This program and the accompanying materials\r |
95276127 | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
fb0b259e | 14 | **/\r |
95276127 | 15 | \r |
0ad02bbd | 16 | #include "ConPlatform.h"\r |
95276127 | 17 | \r |
95276127 | 18 | \r |
19 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextInDriverBinding = {\r | |
20 | ConPlatformTextInDriverBindingSupported,\r | |
21 | ConPlatformTextInDriverBindingStart,\r | |
22 | ConPlatformTextInDriverBindingStop,\r | |
23 | 0xa,\r | |
24 | NULL,\r | |
25 | NULL\r | |
26 | };\r | |
27 | \r | |
28 | EFI_DRIVER_BINDING_PROTOCOL gConPlatformTextOutDriverBinding = {\r | |
29 | ConPlatformTextOutDriverBindingSupported,\r | |
30 | ConPlatformTextOutDriverBindingStart,\r | |
31 | ConPlatformTextOutDriverBindingStop,\r | |
32 | 0xa,\r | |
33 | NULL,\r | |
34 | NULL\r | |
35 | };\r | |
36 | \r | |
37 | /**\r | |
c5ed97f6 | 38 | Entrypoint of this module.\r |
39 | \r | |
40 | This function is the entrypoint of this module. It installs Driver Binding\r | |
41 | Protocols together with Component Name Protocols.\r | |
95276127 | 42 | \r |
7b9ff698 | 43 | @param ImageHandle The firmware allocated handle for the EFI image.\r |
44 | @param SystemTable A pointer to the EFI System Table.\r | |
c62a593c | 45 | \r |
95276127 | 46 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
95276127 | 47 | \r |
48 | **/\r | |
49 | EFI_STATUS\r | |
50 | EFIAPI\r | |
51 | InitializeConPlatform(\r | |
52 | IN EFI_HANDLE ImageHandle,\r | |
53 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
54 | )\r | |
55 | {\r | |
56 | EFI_STATUS Status;\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 | |
c5ed97f6 | 78 | return EFI_SUCCESS;\r |
95276127 | 79 | }\r |
80 | \r | |
81 | \r | |
9359e53f | 82 | /**\r |
d1102dba | 83 | Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.\r |
9359e53f | 84 | \r |
85 | @param This Protocol instance pointer.\r | |
86 | @param ControllerHandle Handle of device to test.\r | |
87 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
88 | device to start.\r | |
89 | \r | |
7b9ff698 | 90 | @retval EFI_SUCCESS This driver supports this device.\r |
91 | @retval other This driver does not support this device.\r | |
9359e53f | 92 | \r |
93 | **/\r | |
95276127 | 94 | EFI_STATUS\r |
95 | EFIAPI\r | |
96 | ConPlatformTextInDriverBindingSupported (\r | |
97 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
98 | IN EFI_HANDLE ControllerHandle,\r | |
c5ed97f6 | 99 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
95276127 | 100 | )\r |
95276127 | 101 | {\r |
102 | return ConPlatformDriverBindingSupported (\r | |
c5ed97f6 | 103 | This,\r |
104 | ControllerHandle,\r | |
105 | &gEfiSimpleTextInProtocolGuid\r | |
106 | );\r | |
95276127 | 107 | }\r |
108 | \r | |
9359e53f | 109 | \r |
110 | /**\r | |
d1102dba | 111 | Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.\r |
9359e53f | 112 | \r |
113 | @param This Protocol instance pointer.\r | |
114 | @param ControllerHandle Handle of device to test.\r | |
115 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
116 | device to start.\r | |
117 | \r | |
7b9ff698 | 118 | @retval EFI_SUCCESS This driver supports this device.\r |
119 | @retval other This driver does not support this device.\r | |
9359e53f | 120 | \r |
121 | **/\r | |
95276127 | 122 | EFI_STATUS\r |
123 | EFIAPI\r | |
124 | ConPlatformTextOutDriverBindingSupported (\r | |
125 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
126 | IN EFI_HANDLE ControllerHandle,\r | |
c5ed97f6 | 127 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
95276127 | 128 | )\r |
95276127 | 129 | {\r |
130 | return ConPlatformDriverBindingSupported (\r | |
c5ed97f6 | 131 | This,\r |
132 | ControllerHandle,\r | |
133 | &gEfiSimpleTextOutProtocolGuid\r | |
134 | );\r | |
95276127 | 135 | }\r |
136 | \r | |
9359e53f | 137 | \r |
138 | /**\r | |
d1102dba | 139 | Test to see if the specified protocol is supported on ControllerHandle.\r |
9359e53f | 140 | \r |
141 | @param This Protocol instance pointer.\r | |
142 | @param ControllerHandle Handle of device to test.\r | |
9359e53f | 143 | @param ProtocolGuid The specfic protocol.\r |
144 | \r | |
7b9ff698 | 145 | @retval EFI_SUCCESS This driver supports this device.\r |
146 | @retval other This driver does not support this device.\r | |
9359e53f | 147 | \r |
148 | **/\r | |
95276127 | 149 | EFI_STATUS\r |
150 | ConPlatformDriverBindingSupported (\r | |
151 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
152 | IN EFI_HANDLE ControllerHandle,\r | |
95276127 | 153 | IN EFI_GUID *ProtocolGuid\r |
154 | )\r | |
95276127 | 155 | {\r |
156 | EFI_STATUS Status;\r | |
157 | VOID *Interface;\r | |
158 | \r | |
159 | //\r | |
7b9ff698 | 160 | // Test to see if this is a physical device by checking if\r |
161 | // it has a Device Path Protocol.\r | |
95276127 | 162 | //\r |
163 | Status = gBS->OpenProtocol (\r | |
164 | ControllerHandle,\r | |
165 | &gEfiDevicePathProtocolGuid,\r | |
166 | NULL,\r | |
167 | This->DriverBindingHandle,\r | |
168 | ControllerHandle,\r | |
169 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
170 | );\r | |
171 | if (EFI_ERROR (Status)) {\r | |
172 | return Status;\r | |
173 | }\r | |
174 | //\r | |
7b9ff698 | 175 | // Test to see if this device supports the specified Protocol.\r |
95276127 | 176 | //\r |
177 | Status = gBS->OpenProtocol (\r | |
178 | ControllerHandle,\r | |
179 | ProtocolGuid,\r | |
180 | (VOID **) &Interface,\r | |
181 | This->DriverBindingHandle,\r | |
182 | ControllerHandle,\r | |
183 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
184 | );\r | |
185 | if (EFI_ERROR (Status)) {\r | |
186 | return Status;\r | |
187 | }\r | |
188 | \r | |
189 | gBS->CloseProtocol (\r | |
c5ed97f6 | 190 | ControllerHandle,\r |
191 | ProtocolGuid,\r | |
192 | This->DriverBindingHandle,\r | |
193 | ControllerHandle\r | |
194 | );\r | |
95276127 | 195 | \r |
196 | return EFI_SUCCESS;\r | |
197 | }\r | |
198 | \r | |
9359e53f | 199 | /**\r |
c5ed97f6 | 200 | Start this driver on the device for console input.\r |
201 | \r | |
202 | Start this driver on ControllerHandle by opening Simple Text Input Protocol,\r | |
24248368 | 203 | reading Device Path, and installing Console In Devcice GUID on ControllerHandle.\r |
9359e53f | 204 | \r |
d1102dba | 205 | If this devcie is not one hot-plug devce, append its device path into the\r |
9359e53f | 206 | console environment variables ConInDev.\r |
d1102dba | 207 | \r |
9359e53f | 208 | @param This Protocol instance pointer.\r |
209 | @param ControllerHandle Handle of device to bind driver to\r | |
210 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
211 | device to start.\r | |
212 | \r | |
213 | @retval EFI_SUCCESS This driver is added to ControllerHandle\r | |
214 | @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r | |
415df2a3 | 215 | @retval other This driver does not support this device.\r |
9359e53f | 216 | \r |
217 | **/\r | |
95276127 | 218 | EFI_STATUS\r |
219 | EFIAPI\r | |
220 | ConPlatformTextInDriverBindingStart (\r | |
221 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
222 | IN EFI_HANDLE ControllerHandle,\r | |
223 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
224 | )\r | |
95276127 | 225 | {\r |
c5ed97f6 | 226 | EFI_STATUS Status;\r |
227 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
95276127 | 228 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *TextIn;\r |
ca6b86ef | 229 | BOOLEAN IsInConInVariable;\r |
95276127 | 230 | \r |
231 | //\r | |
232 | // Get the Device Path Protocol so the environment variables can be updated\r | |
233 | //\r | |
234 | Status = gBS->OpenProtocol (\r | |
235 | ControllerHandle,\r | |
236 | &gEfiDevicePathProtocolGuid,\r | |
237 | (VOID **) &DevicePath,\r | |
238 | This->DriverBindingHandle,\r | |
239 | ControllerHandle,\r | |
240 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
241 | );\r | |
242 | if (EFI_ERROR (Status)) {\r | |
243 | return Status;\r | |
244 | }\r | |
245 | //\r | |
c5ed97f6 | 246 | // Open the Simple Text Input Protocol BY_DRIVER\r |
95276127 | 247 | //\r |
248 | Status = gBS->OpenProtocol (\r | |
249 | ControllerHandle,\r | |
250 | &gEfiSimpleTextInProtocolGuid,\r | |
251 | (VOID **) &TextIn,\r | |
252 | This->DriverBindingHandle,\r | |
253 | ControllerHandle,\r | |
254 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
255 | );\r | |
256 | if (EFI_ERROR (Status)) {\r | |
257 | return Status;\r | |
258 | }\r | |
ca6b86ef | 259 | //\r |
260 | // Check if the device path is in ConIn Variable\r | |
261 | //\r | |
262 | IsInConInVariable = FALSE;\r | |
263 | Status = ConPlatformUpdateDeviceVariable (\r | |
264 | L"ConIn",\r | |
265 | DevicePath,\r | |
1ccdbf2a | 266 | Check\r |
ca6b86ef | 267 | );\r |
268 | if (!EFI_ERROR (Status)) {\r | |
269 | IsInConInVariable = TRUE;\r | |
270 | }\r | |
271 | \r | |
95276127 | 272 | //\r |
f1aec6cc | 273 | // Check the device path, if it is a hot plug device,\r |
95276127 | 274 | // do not put the device path into ConInDev, and install\r |
275 | // gEfiConsoleInDeviceGuid to the device handle directly.\r | |
276 | // The policy is, make hot plug device plug in and play immediately.\r | |
277 | //\r | |
f1aec6cc | 278 | if (IsHotPlugDevice (DevicePath)) {\r |
95276127 | 279 | gBS->InstallMultipleProtocolInterfaces (\r |
c5ed97f6 | 280 | &ControllerHandle,\r |
281 | &gEfiConsoleInDeviceGuid,\r | |
282 | NULL,\r | |
283 | NULL\r | |
284 | );\r | |
ca6b86ef | 285 | //\r |
286 | // Append the device path to ConInDev only if it is in ConIn variable.\r | |
287 | //\r | |
288 | if (IsInConInVariable) {\r | |
289 | ConPlatformUpdateDeviceVariable (\r | |
290 | L"ConInDev",\r | |
291 | DevicePath,\r | |
1ccdbf2a | 292 | Append\r |
ca6b86ef | 293 | );\r |
294 | }\r | |
95276127 | 295 | } else {\r |
296 | //\r | |
c5ed97f6 | 297 | // If it is not a hot-plug device, append the device path to the\r |
298 | // ConInDev environment variable\r | |
95276127 | 299 | //\r |
300 | ConPlatformUpdateDeviceVariable (\r | |
ff37790d | 301 | L"ConInDev",\r |
95276127 | 302 | DevicePath,\r |
1ccdbf2a | 303 | Append\r |
95276127 | 304 | );\r |
305 | \r | |
306 | //\r | |
9fdeb098 | 307 | // If the device path is an instance in the ConIn environment variable,\r |
95276127 | 308 | // then install EfiConsoleInDeviceGuid onto ControllerHandle\r |
309 | //\r | |
ca6b86ef | 310 | if (IsInConInVariable) {\r |
95276127 | 311 | gBS->InstallMultipleProtocolInterfaces (\r |
c5ed97f6 | 312 | &ControllerHandle,\r |
313 | &gEfiConsoleInDeviceGuid,\r | |
314 | NULL,\r | |
315 | NULL\r | |
316 | );\r | |
95276127 | 317 | } else {\r |
318 | gBS->CloseProtocol (\r | |
c5ed97f6 | 319 | ControllerHandle,\r |
320 | &gEfiSimpleTextInProtocolGuid,\r | |
321 | This->DriverBindingHandle,\r | |
322 | ControllerHandle\r | |
323 | );\r | |
95276127 | 324 | }\r |
325 | }\r | |
326 | \r | |
327 | return EFI_SUCCESS;\r | |
328 | }\r | |
329 | \r | |
9359e53f | 330 | /**\r |
0a18956d | 331 | Start this driver on the device for console output and standard error output.\r |
c5ed97f6 | 332 | \r |
333 | Start this driver on ControllerHandle by opening Simple Text Output Protocol,\r | |
24248368 | 334 | reading Device Path, and installing Console Out Devcic GUID, Standard Error\r |
9359e53f | 335 | Device GUID on ControllerHandle.\r |
336 | \r | |
d1102dba | 337 | If this devcie is not one hot-plug devce, append its device path into the\r |
7772b176 | 338 | console environment variables ConOutDev, ErrOutDev.\r |
d1102dba | 339 | \r |
9359e53f | 340 | @param This Protocol instance pointer.\r |
341 | @param ControllerHandle Handle of device to bind driver to\r | |
342 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
343 | device to start.\r | |
344 | \r | |
345 | @retval EFI_SUCCESS This driver is added to ControllerHandle\r | |
346 | @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r | |
347 | @retval other This driver does not support this device\r | |
348 | \r | |
349 | **/\r | |
95276127 | 350 | EFI_STATUS\r |
351 | EFIAPI\r | |
352 | ConPlatformTextOutDriverBindingStart (\r | |
353 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
354 | IN EFI_HANDLE ControllerHandle,\r | |
355 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
356 | )\r | |
95276127 | 357 | {\r |
c5ed97f6 | 358 | EFI_STATUS Status;\r |
359 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
95276127 | 360 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *TextOut;\r |
c5ed97f6 | 361 | BOOLEAN NeedClose;\r |
ca6b86ef | 362 | BOOLEAN IsInConOutVariable;\r |
363 | BOOLEAN IsInErrOutVariable;\r | |
95276127 | 364 | \r |
365 | NeedClose = TRUE;\r | |
366 | \r | |
367 | //\r | |
368 | // Get the Device Path Protocol so the environment variables can be updated\r | |
369 | //\r | |
370 | Status = gBS->OpenProtocol (\r | |
371 | ControllerHandle,\r | |
372 | &gEfiDevicePathProtocolGuid,\r | |
373 | (VOID **) &DevicePath,\r | |
374 | This->DriverBindingHandle,\r | |
375 | ControllerHandle,\r | |
376 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
377 | );\r | |
378 | if (EFI_ERROR (Status)) {\r | |
379 | return Status;\r | |
380 | }\r | |
381 | //\r | |
382 | // Open the Simple Text Output Protocol BY_DRIVER\r | |
383 | //\r | |
384 | Status = gBS->OpenProtocol (\r | |
385 | ControllerHandle,\r | |
386 | &gEfiSimpleTextOutProtocolGuid,\r | |
387 | (VOID **) &TextOut,\r | |
388 | This->DriverBindingHandle,\r | |
389 | ControllerHandle,\r | |
390 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
391 | );\r | |
392 | if (EFI_ERROR (Status)) {\r | |
393 | return Status;\r | |
394 | }\r | |
ca6b86ef | 395 | //\r |
396 | // Check if the device path is in ConOut & ErrOut Variable\r | |
397 | //\r | |
398 | IsInConOutVariable = FALSE;\r | |
399 | Status = ConPlatformUpdateDeviceVariable (\r | |
400 | L"ConOut",\r | |
401 | DevicePath,\r | |
1ccdbf2a | 402 | Check\r |
ca6b86ef | 403 | );\r |
404 | if (!EFI_ERROR (Status)) {\r | |
405 | IsInConOutVariable = TRUE;\r | |
406 | }\r | |
407 | \r | |
408 | IsInErrOutVariable = FALSE;\r | |
409 | Status = ConPlatformUpdateDeviceVariable (\r | |
410 | L"ErrOut",\r | |
411 | DevicePath,\r | |
1ccdbf2a | 412 | Check\r |
ca6b86ef | 413 | );\r |
414 | if (!EFI_ERROR (Status)) {\r | |
415 | IsInErrOutVariable = TRUE;\r | |
416 | }\r | |
417 | \r | |
95276127 | 418 | //\r |
f1aec6cc | 419 | // Check the device path, if it is a hot plug device,\r |
7772b176 | 420 | // do not put the device path into ConOutDev and ErrOutDev,\r |
95276127 | 421 | // and install gEfiConsoleOutDeviceGuid to the device handle directly.\r |
422 | // The policy is, make hot plug device plug in and play immediately.\r | |
423 | //\r | |
f1aec6cc | 424 | if (IsHotPlugDevice (DevicePath)) {\r |
95276127 | 425 | gBS->InstallMultipleProtocolInterfaces (\r |
c5ed97f6 | 426 | &ControllerHandle,\r |
427 | &gEfiConsoleOutDeviceGuid,\r | |
428 | NULL,\r | |
429 | NULL\r | |
430 | );\r | |
ca6b86ef | 431 | //\r |
432 | // Append the device path to ConOutDev only if it is in ConOut variable.\r | |
433 | //\r | |
434 | if (IsInConOutVariable) {\r | |
435 | ConPlatformUpdateDeviceVariable (\r | |
436 | L"ConOutDev",\r | |
437 | DevicePath,\r | |
1ccdbf2a | 438 | Append\r |
ca6b86ef | 439 | );\r |
440 | }\r | |
441 | //\r | |
442 | // Append the device path to ErrOutDev only if it is in ErrOut variable.\r | |
443 | //\r | |
444 | if (IsInErrOutVariable) {\r | |
445 | ConPlatformUpdateDeviceVariable (\r | |
446 | L"ErrOutDev",\r | |
447 | DevicePath,\r | |
1ccdbf2a | 448 | Append\r |
ca6b86ef | 449 | );\r |
450 | }\r | |
95276127 | 451 | } else {\r |
452 | //\r | |
d1102dba | 453 | // If it is not a hot-plug device, append the device path to\r |
5b7183ef RN |
454 | // the ConOutDev and ErrOutDev environment variable.\r |
455 | // For GOP device path, append the sibling device path as well.\r | |
95276127 | 456 | //\r |
5b7183ef RN |
457 | if (!ConPlatformUpdateGopCandidate (DevicePath)) {\r |
458 | ConPlatformUpdateDeviceVariable (\r | |
459 | L"ConOutDev",\r | |
460 | DevicePath,\r | |
461 | Append\r | |
462 | );\r | |
463 | //\r | |
464 | // Then append the device path to the ErrOutDev environment variable\r | |
465 | //\r | |
466 | ConPlatformUpdateDeviceVariable (\r | |
467 | L"ErrOutDev",\r | |
468 | DevicePath,\r | |
469 | Append\r | |
470 | );\r | |
471 | }\r | |
95276127 | 472 | \r |
473 | //\r | |
9fdeb098 | 474 | // If the device path is an instance in the ConOut environment variable,\r |
95276127 | 475 | // then install EfiConsoleOutDeviceGuid onto ControllerHandle\r |
476 | //\r | |
ca6b86ef | 477 | if (IsInConOutVariable) {\r |
95276127 | 478 | NeedClose = FALSE;\r |
479 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
480 | &ControllerHandle,\r | |
481 | &gEfiConsoleOutDeviceGuid,\r | |
482 | NULL,\r | |
483 | NULL\r | |
484 | );\r | |
485 | }\r | |
486 | //\r | |
9fdeb098 | 487 | // If the device path is an instance in the ErrOut environment variable,\r |
95276127 | 488 | // then install EfiStandardErrorDeviceGuid onto ControllerHandle\r |
489 | //\r | |
ca6b86ef | 490 | if (IsInErrOutVariable) {\r |
95276127 | 491 | NeedClose = FALSE;\r |
492 | gBS->InstallMultipleProtocolInterfaces (\r | |
c5ed97f6 | 493 | &ControllerHandle,\r |
494 | &gEfiStandardErrorDeviceGuid,\r | |
495 | NULL,\r | |
496 | NULL\r | |
497 | );\r | |
95276127 | 498 | }\r |
499 | \r | |
500 | if (NeedClose) {\r | |
501 | gBS->CloseProtocol (\r | |
c5ed97f6 | 502 | ControllerHandle,\r |
503 | &gEfiSimpleTextOutProtocolGuid,\r | |
504 | This->DriverBindingHandle,\r | |
505 | ControllerHandle\r | |
506 | );\r | |
95276127 | 507 | }\r |
508 | }\r | |
509 | \r | |
510 | return EFI_SUCCESS;\r | |
511 | }\r | |
512 | \r | |
9359e53f | 513 | /**\r |
d1102dba | 514 | Stop this driver on ControllerHandle by removing Console In Devcice GUID\r |
c5ed97f6 | 515 | and closing the Simple Text Input protocol on ControllerHandle.\r |
9359e53f | 516 | \r |
517 | @param This Protocol instance pointer.\r | |
518 | @param ControllerHandle Handle of device to stop driver on\r | |
519 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
520 | children is zero stop the entire bus driver.\r | |
521 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
522 | \r | |
523 | @retval EFI_SUCCESS This driver is removed ControllerHandle\r | |
524 | @retval other This driver was not removed from this device\r | |
525 | \r | |
526 | **/\r | |
95276127 | 527 | EFI_STATUS\r |
528 | EFIAPI\r | |
529 | ConPlatformTextInDriverBindingStop (\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 | |
95276127 | 535 | {\r |
536 | EFI_STATUS Status;\r | |
537 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
538 | \r | |
539 | //\r | |
f1aec6cc | 540 | // Get the Device Path Protocol firstly\r |
95276127 | 541 | //\r |
f1aec6cc | 542 | Status = gBS->OpenProtocol (\r |
543 | ControllerHandle,\r | |
544 | &gEfiDevicePathProtocolGuid,\r | |
545 | (VOID **) &DevicePath,\r | |
546 | This->DriverBindingHandle,\r | |
547 | ControllerHandle,\r | |
548 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
549 | );\r | |
550 | //\r | |
551 | // If there is device path on ControllerHandle\r | |
552 | //\r | |
553 | if (!EFI_ERROR (Status)) {\r | |
95276127 | 554 | //\r |
ca6b86ef | 555 | // Remove DevicePath from ConInDev if exists.\r |
4986c561 | 556 | //\r |
ca6b86ef | 557 | ConPlatformUpdateDeviceVariable (\r |
558 | L"ConInDev",\r | |
559 | DevicePath,\r | |
1ccdbf2a | 560 | Delete\r |
ca6b86ef | 561 | );\r |
95276127 | 562 | }\r |
f1aec6cc | 563 | \r |
95276127 | 564 | //\r |
565 | // Uninstall the Console Device GUIDs from Controller Handle\r | |
566 | //\r | |
567 | ConPlatformUnInstallProtocol (\r | |
568 | This,\r | |
569 | ControllerHandle,\r | |
570 | &gEfiConsoleInDeviceGuid\r | |
571 | );\r | |
572 | \r | |
573 | //\r | |
c5ed97f6 | 574 | // Close the Simple Text Input Protocol\r |
95276127 | 575 | //\r |
576 | gBS->CloseProtocol (\r | |
ca6b86ef | 577 | ControllerHandle,\r |
578 | &gEfiSimpleTextInProtocolGuid,\r | |
579 | This->DriverBindingHandle,\r | |
580 | ControllerHandle\r | |
581 | );\r | |
95276127 | 582 | \r |
583 | return EFI_SUCCESS;\r | |
584 | }\r | |
585 | \r | |
9359e53f | 586 | \r |
587 | /**\r | |
d1102dba | 588 | Stop this driver on ControllerHandle by removing Console Out Devcice GUID\r |
c5ed97f6 | 589 | and closing the Simple Text Output protocol on ControllerHandle.\r |
9359e53f | 590 | \r |
591 | @param This Protocol instance pointer.\r | |
592 | @param ControllerHandle Handle of device to stop driver on\r | |
593 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
594 | children is zero stop the entire bus driver.\r | |
595 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
596 | \r | |
597 | @retval EFI_SUCCESS This driver is removed ControllerHandle\r | |
598 | @retval other This driver was not removed from this device\r | |
599 | \r | |
600 | **/\r | |
95276127 | 601 | EFI_STATUS\r |
602 | EFIAPI\r | |
603 | ConPlatformTextOutDriverBindingStop (\r | |
604 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
605 | IN EFI_HANDLE ControllerHandle,\r | |
606 | IN UINTN NumberOfChildren,\r | |
607 | IN EFI_HANDLE *ChildHandleBuffer\r | |
608 | )\r | |
95276127 | 609 | {\r |
610 | EFI_STATUS Status;\r | |
611 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
612 | \r | |
613 | //\r | |
f1aec6cc | 614 | // Get the Device Path Protocol firstly\r |
95276127 | 615 | //\r |
f1aec6cc | 616 | Status = gBS->OpenProtocol (\r |
617 | ControllerHandle,\r | |
618 | &gEfiDevicePathProtocolGuid,\r | |
619 | (VOID **) &DevicePath,\r | |
620 | This->DriverBindingHandle,\r | |
621 | ControllerHandle,\r | |
622 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
623 | );\r | |
624 | if (!EFI_ERROR (Status)) {\r | |
95276127 | 625 | //\r |
ca6b86ef | 626 | // Remove DevicePath from ConOutDev and ErrOutDev if exists.\r |
95276127 | 627 | //\r |
ca6b86ef | 628 | ConPlatformUpdateDeviceVariable (\r |
629 | L"ConOutDev",\r | |
630 | DevicePath,\r | |
1ccdbf2a | 631 | Delete\r |
ca6b86ef | 632 | );\r |
633 | ConPlatformUpdateDeviceVariable (\r | |
634 | L"ErrOutDev",\r | |
635 | DevicePath,\r | |
1ccdbf2a | 636 | Delete\r |
ca6b86ef | 637 | );\r |
95276127 | 638 | }\r |
f1aec6cc | 639 | \r |
95276127 | 640 | //\r |
641 | // Uninstall the Console Device GUIDs from Controller Handle\r | |
642 | //\r | |
643 | ConPlatformUnInstallProtocol (\r | |
644 | This,\r | |
645 | ControllerHandle,\r | |
646 | &gEfiConsoleOutDeviceGuid\r | |
647 | );\r | |
648 | \r | |
649 | ConPlatformUnInstallProtocol (\r | |
650 | This,\r | |
651 | ControllerHandle,\r | |
652 | &gEfiStandardErrorDeviceGuid\r | |
653 | );\r | |
654 | \r | |
655 | //\r | |
656 | // Close the Simple Text Output Protocol\r | |
657 | //\r | |
658 | gBS->CloseProtocol (\r | |
659 | ControllerHandle,\r | |
660 | &gEfiSimpleTextOutProtocolGuid,\r | |
661 | This->DriverBindingHandle,\r | |
662 | ControllerHandle\r | |
663 | );\r | |
664 | \r | |
665 | return EFI_SUCCESS;\r | |
666 | }\r | |
667 | \r | |
668 | \r | |
9359e53f | 669 | /**\r |
7b9ff698 | 670 | Uninstall the specified protocol.\r |
9359e53f | 671 | \r |
672 | @param This Protocol instance pointer.\r | |
7b9ff698 | 673 | @param Handle Handle of device to uninstall protocol on.\r |
674 | @param ProtocolGuid The specified protocol need to be uninstalled.\r | |
9359e53f | 675 | \r |
9359e53f | 676 | **/\r |
95276127 | 677 | VOID\r |
678 | ConPlatformUnInstallProtocol (\r | |
679 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
680 | IN EFI_HANDLE Handle,\r | |
681 | IN EFI_GUID *ProtocolGuid\r | |
682 | )\r | |
683 | {\r | |
684 | EFI_STATUS Status;\r | |
685 | \r | |
686 | Status = gBS->OpenProtocol (\r | |
687 | Handle,\r | |
688 | ProtocolGuid,\r | |
689 | NULL,\r | |
690 | This->DriverBindingHandle,\r | |
691 | Handle,\r | |
692 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
693 | );\r | |
694 | \r | |
695 | if (!EFI_ERROR (Status)) {\r | |
696 | gBS->UninstallMultipleProtocolInterfaces (\r | |
c5ed97f6 | 697 | Handle,\r |
698 | ProtocolGuid,\r | |
699 | NULL,\r | |
700 | NULL\r | |
701 | );\r | |
95276127 | 702 | }\r |
703 | \r | |
704 | return ;\r | |
705 | }\r | |
706 | \r | |
9359e53f | 707 | /**\r |
7772b176 | 708 | Get the necessary size of buffer and read the variable.\r |
c5ed97f6 | 709 | \r |
710 | First get the necessary size of buffer. Then read the\r | |
711 | EFI variable (Name) and return a dynamically allocated\r | |
712 | buffer. On failure return NULL.\r | |
95276127 | 713 | \r |
9359e53f | 714 | @param Name String part of EFI variable name\r |
95276127 | 715 | \r |
9359e53f | 716 | @return Dynamically allocated memory that contains a copy of the EFI variable.\r |
d1102dba | 717 | Caller is repsoncible freeing the buffer. Return NULL means Variable\r |
7b9ff698 | 718 | was not read.\r |
95276127 | 719 | \r |
9359e53f | 720 | **/\r |
721 | VOID *\r | |
722 | ConPlatformGetVariable (\r | |
723 | IN CHAR16 *Name\r | |
724 | )\r | |
95276127 | 725 | {\r |
726 | EFI_STATUS Status;\r | |
727 | VOID *Buffer;\r | |
728 | UINTN BufferSize;\r | |
729 | \r | |
730 | BufferSize = 0;\r | |
731 | Buffer = NULL;\r | |
732 | \r | |
733 | //\r | |
c5ed97f6 | 734 | // Test to see if the variable exists. If it doesn't, return NULL.\r |
95276127 | 735 | //\r |
736 | Status = gRT->GetVariable (\r | |
737 | Name,\r | |
738 | &gEfiGlobalVariableGuid,\r | |
739 | NULL,\r | |
740 | &BufferSize,\r | |
741 | Buffer\r | |
742 | );\r | |
743 | \r | |
744 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
745 | //\r | |
746 | // Allocate the buffer to return\r | |
747 | //\r | |
748 | Buffer = AllocatePool (BufferSize);\r | |
749 | if (Buffer == NULL) {\r | |
750 | return NULL;\r | |
751 | }\r | |
752 | //\r | |
753 | // Read variable into the allocated buffer.\r | |
754 | //\r | |
755 | Status = gRT->GetVariable (\r | |
756 | Name,\r | |
757 | &gEfiGlobalVariableGuid,\r | |
758 | NULL,\r | |
759 | &BufferSize,\r | |
760 | Buffer\r | |
761 | );\r | |
762 | if (EFI_ERROR (Status)) {\r | |
763 | FreePool (Buffer);\r | |
7b9ff698 | 764 | //\r |
765 | // To make sure Buffer is NULL if any error occurs.\r | |
766 | //\r | |
95276127 | 767 | Buffer = NULL;\r |
768 | }\r | |
769 | }\r | |
770 | \r | |
771 | return Buffer;\r | |
772 | }\r | |
773 | \r | |
19f50882 RN |
774 | /**\r |
775 | Function returns TRUE when the two input device paths point to the two\r | |
776 | GOP child handles that have the same parent.\r | |
777 | \r | |
778 | @param Left A pointer to a device path data structure.\r | |
779 | @param Right A pointer to a device path data structure.\r | |
780 | \r | |
781 | @retval TRUE Left and Right share the same parent.\r | |
782 | @retval FALSE Left and Right don't share the same parent or either of them is not\r | |
783 | a GOP device path.\r | |
784 | **/\r | |
785 | BOOLEAN\r | |
786 | IsGopSibling (\r | |
787 | IN EFI_DEVICE_PATH_PROTOCOL *Left,\r | |
788 | IN EFI_DEVICE_PATH_PROTOCOL *Right\r | |
789 | )\r | |
790 | {\r | |
791 | EFI_DEVICE_PATH_PROTOCOL *NodeLeft;\r | |
792 | EFI_DEVICE_PATH_PROTOCOL *NodeRight;\r | |
793 | \r | |
794 | for (NodeLeft = Left; !IsDevicePathEndType (NodeLeft); NodeLeft = NextDevicePathNode (NodeLeft)) {\r | |
fa9bebd8 RN |
795 | if ((DevicePathType (NodeLeft) == ACPI_DEVICE_PATH && DevicePathSubType (NodeLeft) == ACPI_ADR_DP) ||\r |
796 | (DevicePathType (NodeLeft) == HARDWARE_DEVICE_PATH && DevicePathSubType (NodeLeft) == HW_CONTROLLER_DP &&\r | |
797 | DevicePathType (NextDevicePathNode (NodeLeft)) == ACPI_DEVICE_PATH && DevicePathSubType (NextDevicePathNode (NodeLeft)) == ACPI_ADR_DP)) {\r | |
19f50882 RN |
798 | break;\r |
799 | }\r | |
800 | }\r | |
801 | \r | |
802 | if (IsDevicePathEndType (NodeLeft)) {\r | |
803 | return FALSE;\r | |
804 | }\r | |
805 | \r | |
806 | for (NodeRight = Right; !IsDevicePathEndType (NodeRight); NodeRight = NextDevicePathNode (NodeRight)) {\r | |
fa9bebd8 RN |
807 | if ((DevicePathType (NodeRight) == ACPI_DEVICE_PATH && DevicePathSubType (NodeRight) == ACPI_ADR_DP) ||\r |
808 | (DevicePathType (NodeRight) == HARDWARE_DEVICE_PATH && DevicePathSubType (NodeRight) == HW_CONTROLLER_DP &&\r | |
809 | DevicePathType (NextDevicePathNode (NodeRight)) == ACPI_DEVICE_PATH && DevicePathSubType (NextDevicePathNode (NodeRight)) == ACPI_ADR_DP)) {\r | |
19f50882 RN |
810 | break;\r |
811 | }\r | |
812 | }\r | |
813 | \r | |
814 | if (IsDevicePathEndType (NodeRight)) {\r | |
815 | return FALSE;\r | |
816 | }\r | |
817 | \r | |
818 | if (((UINTN) NodeLeft - (UINTN) Left) != ((UINTN) NodeRight - (UINTN) Right)) {\r | |
819 | return FALSE;\r | |
820 | }\r | |
821 | \r | |
822 | return (BOOLEAN) (CompareMem (Left, Right, (UINTN) NodeLeft - (UINTN) Left) == 0);\r | |
823 | }\r | |
824 | \r | |
9359e53f | 825 | /**\r |
95276127 | 826 | Function compares a device path data structure to that of all the nodes of a\r |
827 | second device path instance.\r | |
828 | \r | |
9359e53f | 829 | @param Multi A pointer to a multi-instance device path data structure.\r |
830 | @param Single A pointer to a single-instance device path data structure.\r | |
831 | @param NewDevicePath If Delete is TRUE, this parameter must not be null, and it\r | |
832 | points to the remaining device path data structure.\r | |
833 | (remaining device path = Multi - Single.)\r | |
834 | @param Delete If TRUE, means removing Single from Multi.\r | |
835 | If FALSE, the routine just check whether Single matches\r | |
836 | with any instance in Multi.\r | |
95276127 | 837 | \r |
c5ed97f6 | 838 | @retval EFI_SUCCESS If the Single is contained within Multi.\r |
839 | @retval EFI_NOT_FOUND If the Single is not contained within Multi.\r | |
840 | @retval EFI_INVALID_PARAMETER Multi is NULL.\r | |
841 | @retval EFI_INVALID_PARAMETER Single is NULL.\r | |
842 | @retval EFI_INVALID_PARAMETER NewDevicePath is NULL when Delete is TRUE.\r | |
95276127 | 843 | \r |
9359e53f | 844 | **/\r |
845 | EFI_STATUS\r | |
846 | ConPlatformMatchDevicePaths (\r | |
847 | IN EFI_DEVICE_PATH_PROTOCOL *Multi,\r | |
848 | IN EFI_DEVICE_PATH_PROTOCOL *Single,\r | |
7b9ff698 | 849 | OUT EFI_DEVICE_PATH_PROTOCOL **NewDevicePath OPTIONAL,\r |
9359e53f | 850 | IN BOOLEAN Delete\r |
851 | )\r | |
95276127 | 852 | {\r |
853 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
7b9ff698 | 854 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath1;\r |
855 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath2;\r | |
95276127 | 856 | EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;\r |
857 | UINTN Size;\r | |
858 | \r | |
859 | //\r | |
860 | // The passed in DevicePath should not be NULL\r | |
861 | //\r | |
9359e53f | 862 | if ((Multi == NULL) || (Single == NULL)) {\r |
c5ed97f6 | 863 | return EFI_INVALID_PARAMETER;\r |
95276127 | 864 | }\r |
7b9ff698 | 865 | \r |
95276127 | 866 | //\r |
7b9ff698 | 867 | // If performing Delete operation, the NewDevicePath must not be NULL.\r |
95276127 | 868 | //\r |
7b9ff698 | 869 | if (Delete) {\r |
c5ed97f6 | 870 | if (NewDevicePath == NULL) {\r |
871 | return EFI_INVALID_PARAMETER;\r | |
872 | }\r | |
7b9ff698 | 873 | }\r |
874 | \r | |
875 | TempDevicePath1 = NULL;\r | |
95276127 | 876 | \r |
877 | DevicePath = Multi;\r | |
878 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r | |
879 | \r | |
880 | //\r | |
7b9ff698 | 881 | // Search for the match of 'Single' in 'Multi'\r |
95276127 | 882 | //\r |
9359e53f | 883 | while (DevicePathInst != NULL) {\r |
19f50882 | 884 | if ((CompareMem (Single, DevicePathInst, Size) == 0) || IsGopSibling (Single, DevicePathInst)) {\r |
95276127 | 885 | if (!Delete) {\r |
7b9ff698 | 886 | //\r |
887 | // If Delete is FALSE, return EFI_SUCCESS if Single is found in Multi.\r | |
888 | //\r | |
95276127 | 889 | FreePool (DevicePathInst);\r |
890 | return EFI_SUCCESS;\r | |
891 | }\r | |
892 | } else {\r | |
893 | if (Delete) {\r | |
7b9ff698 | 894 | //\r |
c5ed97f6 | 895 | // If the node of Multi does not match Single, then added it back to the result.\r |
896 | // That is, the node matching Single will be dropped and deleted from result.\r | |
7b9ff698 | 897 | //\r |
898 | TempDevicePath2 = AppendDevicePathInstance (\r | |
899 | TempDevicePath1,\r | |
95276127 | 900 | DevicePathInst\r |
901 | );\r | |
676df92c | 902 | if (TempDevicePath1 != NULL) {\r |
903 | FreePool (TempDevicePath1);\r | |
904 | }\r | |
7b9ff698 | 905 | TempDevicePath1 = TempDevicePath2;\r |
95276127 | 906 | }\r |
907 | }\r | |
908 | \r | |
909 | FreePool (DevicePathInst);\r | |
910 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r | |
911 | }\r | |
912 | \r | |
913 | if (Delete) {\r | |
7b9ff698 | 914 | //\r |
c5ed97f6 | 915 | // Return the new device path data structure with specified node deleted.\r |
7b9ff698 | 916 | //\r |
917 | *NewDevicePath = TempDevicePath1;\r | |
95276127 | 918 | return EFI_SUCCESS;\r |
919 | }\r | |
920 | \r | |
921 | return EFI_NOT_FOUND;\r | |
922 | }\r | |
923 | \r | |
9359e53f | 924 | /**\r |
d1102dba | 925 | Update console environment variables.\r |
9359e53f | 926 | \r |
927 | @param VariableName Console environment variables, ConOutDev, ConInDev\r | |
7772b176 | 928 | ErrOutDev, ConIn ,ConOut or ErrOut.\r |
9359e53f | 929 | @param DevicePath Console devcie's device path.\r |
c5ed97f6 | 930 | @param Operation Variable operations, including APPEND, CHECK and DELETE.\r |
9359e53f | 931 | \r |
932 | @retval EFI_SUCCESS Variable operates successfully.\r | |
933 | @retval EFI_OUT_OF_RESOURCES If variable cannot be appended.\r | |
934 | @retval other Variable updating failed.\r | |
935 | \r | |
936 | **/\r | |
95276127 | 937 | EFI_STATUS\r |
938 | ConPlatformUpdateDeviceVariable (\r | |
939 | IN CHAR16 *VariableName,\r | |
940 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
941 | IN CONPLATFORM_VAR_OPERATION Operation\r | |
942 | )\r | |
95276127 | 943 | {\r |
944 | EFI_STATUS Status;\r | |
945 | EFI_DEVICE_PATH_PROTOCOL *VariableDevicePath;\r | |
946 | EFI_DEVICE_PATH_PROTOCOL *NewVariableDevicePath;\r | |
947 | \r | |
948 | VariableDevicePath = NULL;\r | |
949 | NewVariableDevicePath = NULL;\r | |
950 | \r | |
951 | //\r | |
952 | // Get Variable according to variable name.\r | |
953 | // The memory for Variable is allocated within ConPlatformGetVarible(),\r | |
954 | // it is the caller's responsibility to free the memory before return.\r | |
955 | //\r | |
956 | VariableDevicePath = ConPlatformGetVariable (VariableName);\r | |
957 | \r | |
1ccdbf2a | 958 | if (Operation != Delete) {\r |
7b9ff698 | 959 | //\r |
960 | // Match specified DevicePath in Console Variable.\r | |
d1102dba | 961 | //\r |
95276127 | 962 | Status = ConPlatformMatchDevicePaths (\r |
c5ed97f6 | 963 | VariableDevicePath,\r |
964 | DevicePath,\r | |
965 | NULL,\r | |
966 | FALSE\r | |
967 | );\r | |
95276127 | 968 | \r |
1ccdbf2a | 969 | if ((Operation == Check) || (!EFI_ERROR (Status))) {\r |
95276127 | 970 | //\r |
c5ed97f6 | 971 | // Branch here includes 2 cases:\r |
972 | // 1. Operation is CHECK, simply return Status.\r | |
973 | // 2. Operation is APPEND, and device path already exists in variable, also return.\r | |
95276127 | 974 | //\r |
975 | if (VariableDevicePath != NULL) {\r | |
976 | FreePool (VariableDevicePath);\r | |
977 | }\r | |
978 | \r | |
979 | return Status;\r | |
980 | }\r | |
981 | //\r | |
c5ed97f6 | 982 | // We reach here to append a device path that does not exist in variable.\r |
95276127 | 983 | //\r |
984 | Status = EFI_SUCCESS;\r | |
985 | NewVariableDevicePath = AppendDevicePathInstance (\r | |
986 | VariableDevicePath,\r | |
987 | DevicePath\r | |
988 | );\r | |
989 | if (NewVariableDevicePath == NULL) {\r | |
990 | Status = EFI_OUT_OF_RESOURCES;\r | |
991 | }\r | |
992 | \r | |
993 | } else {\r | |
994 | //\r | |
c5ed97f6 | 995 | // We reach here to remove DevicePath from the environment variable that\r |
95276127 | 996 | // is a multi-instance device path.\r |
997 | //\r | |
998 | Status = ConPlatformMatchDevicePaths (\r | |
c5ed97f6 | 999 | VariableDevicePath,\r |
1000 | DevicePath,\r | |
1001 | &NewVariableDevicePath,\r | |
1002 | TRUE\r | |
1003 | );\r | |
95276127 | 1004 | }\r |
1005 | \r | |
1006 | if (VariableDevicePath != NULL) {\r | |
1007 | FreePool (VariableDevicePath);\r | |
1008 | }\r | |
1009 | \r | |
1010 | if (EFI_ERROR (Status)) {\r | |
1011 | return Status;\r | |
1012 | }\r | |
1013 | \r | |
c62a593c | 1014 | if (NewVariableDevicePath != NULL) {\r |
7b9ff698 | 1015 | //\r |
1016 | // Update Console Environment Variable.\r | |
1017 | //\r | |
c62a593c | 1018 | Status = gRT->SetVariable (\r |
1019 | VariableName,\r | |
1020 | &gEfiGlobalVariableGuid,\r | |
1021 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
1022 | GetDevicePathSize (NewVariableDevicePath),\r | |
1023 | NewVariableDevicePath\r | |
1024 | );\r | |
95276127 | 1025 | \r |
c62a593c | 1026 | FreePool (NewVariableDevicePath);\r |
1027 | }\r | |
95276127 | 1028 | \r |
1029 | return Status;\r | |
1030 | }\r | |
1031 | \r | |
9359e53f | 1032 | /**\r |
f1aec6cc | 1033 | Check if the device supports hot-plug through its device path.\r |
1034 | \r | |
1035 | This function could be updated to check more types of Hot Plug devices.\r | |
1036 | Currently, it checks USB and PCCard device.\r | |
9359e53f | 1037 | \r |
f1aec6cc | 1038 | @param DevicePath Pointer to device's device path.\r |
9359e53f | 1039 | \r |
1040 | @retval TRUE The devcie is a hot-plug device\r | |
1041 | @retval FALSE The devcie is not a hot-plug device.\r | |
1042 | \r | |
1043 | **/\r | |
95276127 | 1044 | BOOLEAN\r |
1045 | IsHotPlugDevice (\r | |
f1aec6cc | 1046 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r |
95276127 | 1047 | )\r |
1048 | {\r | |
f1aec6cc | 1049 | EFI_DEVICE_PATH_PROTOCOL *CheckDevicePath;\r |
aa8f4f55 | 1050 | \r |
f1aec6cc | 1051 | CheckDevicePath = DevicePath;\r |
1052 | while (!IsDevicePathEnd (CheckDevicePath)) {\r | |
1053 | //\r | |
1054 | // Check device whether is hot plug device or not throught Device Path\r | |
d1102dba | 1055 | //\r |
f1aec6cc | 1056 | if ((DevicePathType (CheckDevicePath) == MESSAGING_DEVICE_PATH) &&\r |
1057 | (DevicePathSubType (CheckDevicePath) == MSG_USB_DP ||\r | |
1058 | DevicePathSubType (CheckDevicePath) == MSG_USB_CLASS_DP ||\r | |
1059 | DevicePathSubType (CheckDevicePath) == MSG_USB_WWID_DP)) {\r | |
1060 | //\r | |
1061 | // If Device is USB device\r | |
1062 | //\r | |
1063 | return TRUE;\r | |
1064 | }\r | |
1065 | if ((DevicePathType (CheckDevicePath) == HARDWARE_DEVICE_PATH) &&\r | |
1066 | (DevicePathSubType (CheckDevicePath) == HW_PCCARD_DP)) {\r | |
1067 | //\r | |
1068 | // If Device is PCCard\r | |
1069 | //\r | |
1070 | return TRUE;\r | |
1071 | }\r | |
d1102dba | 1072 | \r |
f1aec6cc | 1073 | CheckDevicePath = NextDevicePathNode (CheckDevicePath);\r |
95276127 | 1074 | }\r |
1075 | \r | |
f1aec6cc | 1076 | return FALSE;\r |
95276127 | 1077 | }\r |
f1aec6cc | 1078 | \r |
5b7183ef RN |
1079 | /**\r |
1080 | Update ConOutDev and ErrOutDev variables to add the device path of\r | |
1081 | GOP controller itself and the sibling controllers.\r | |
1082 | \r | |
1083 | @param DevicePath Pointer to device's device path.\r | |
1084 | \r | |
1085 | @retval TRUE The devcie is a GOP device.\r | |
1086 | @retval FALSE The devcie is not a GOP device.\r | |
1087 | \r | |
1088 | **/\r | |
1089 | BOOLEAN\r | |
1090 | ConPlatformUpdateGopCandidate (\r | |
1091 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1092 | )\r | |
1093 | {\r | |
1094 | EFI_STATUS Status;\r | |
1095 | EFI_HANDLE PciHandle;\r | |
1096 | EFI_HANDLE GopHandle;\r | |
5b7183ef RN |
1097 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r |
1098 | \r | |
1099 | //\r | |
1100 | // Check whether it's a GOP device.\r | |
1101 | //\r | |
1102 | TempDevicePath = DevicePath;\r | |
1103 | Status = gBS->LocateDevicePath (&gEfiGraphicsOutputProtocolGuid, &TempDevicePath, &GopHandle);\r | |
1104 | if (EFI_ERROR (Status)) {\r | |
1105 | return FALSE;\r | |
1106 | }\r | |
1107 | //\r | |
1108 | // Get the parent PciIo handle in order to find all the children\r | |
1109 | //\r | |
1110 | Status = gBS->LocateDevicePath (&gEfiPciIoProtocolGuid, &DevicePath, &PciHandle);\r | |
1111 | if (EFI_ERROR (Status)) {\r | |
1112 | return FALSE;\r | |
1113 | }\r | |
56dee83a RN |
1114 | TempDevicePath = EfiBootManagerGetGopDevicePath (PciHandle);\r |
1115 | if (TempDevicePath != NULL) {\r | |
1116 | ConPlatformUpdateDeviceVariable (L"ConOutDev", TempDevicePath, Append);\r | |
1117 | ConPlatformUpdateDeviceVariable (L"ErrOutDev", TempDevicePath, Append);\r | |
5b7183ef | 1118 | }\r |
5b7183ef RN |
1119 | return TRUE;\r |
1120 | }\r |