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95276127 | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation\r | |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | Terminal.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Revision History:\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | \r | |
95276127 | 23 | \r |
24 | #include "Terminal.h"\r | |
25 | \r | |
95276127 | 26 | //\r |
27 | // Globals\r | |
28 | //\r | |
29 | EFI_DRIVER_BINDING_PROTOCOL gTerminalDriverBinding = {\r | |
30 | TerminalDriverBindingSupported,\r | |
31 | TerminalDriverBindingStart,\r | |
32 | TerminalDriverBindingStop,\r | |
33 | 0xa,\r | |
34 | NULL,\r | |
35 | NULL\r | |
36 | };\r | |
37 | \r | |
38 | \r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | TerminalDriverBindingSupported (\r | |
42 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
43 | IN EFI_HANDLE Controller,\r | |
44 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
45 | )\r | |
46 | {\r | |
47 | EFI_STATUS Status;\r | |
48 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
49 | EFI_SERIAL_IO_PROTOCOL *SerialIo;\r | |
50 | VENDOR_DEVICE_PATH *Node;\r | |
51 | \r | |
52 | //\r | |
53 | // If remaining device path is not NULL, then make sure it is a\r | |
54 | // device path that describes a terminal communications protocol.\r | |
55 | //\r | |
56 | if (RemainingDevicePath != NULL) {\r | |
57 | \r | |
58 | Node = (VENDOR_DEVICE_PATH *) RemainingDevicePath;\r | |
59 | \r | |
60 | if (Node->Header.Type != MESSAGING_DEVICE_PATH ||\r | |
61 | Node->Header.SubType != MSG_VENDOR_DP ||\r | |
62 | DevicePathNodeLength(&Node->Header) != sizeof(VENDOR_DEVICE_PATH)) {\r | |
63 | \r | |
64 | return EFI_UNSUPPORTED;\r | |
65 | \r | |
66 | }\r | |
67 | //\r | |
68 | // only supports PC ANSI, VT100, VT100+ and VT-UTF8 terminal types\r | |
69 | //\r | |
70 | if (!CompareGuid (&Node->Guid, &gEfiPcAnsiGuid) &&\r | |
71 | !CompareGuid (&Node->Guid, &gEfiVT100Guid) &&\r | |
72 | !CompareGuid (&Node->Guid, &gEfiVT100PlusGuid) &&\r | |
73 | !CompareGuid (&Node->Guid, &gEfiVTUTF8Guid)) {\r | |
74 | \r | |
75 | return EFI_UNSUPPORTED;\r | |
76 | }\r | |
77 | }\r | |
78 | //\r | |
79 | // Open the IO Abstraction(s) needed to perform the supported test\r | |
80 | //\r | |
81 | Status = gBS->OpenProtocol (\r | |
82 | Controller,\r | |
83 | &gEfiDevicePathProtocolGuid,\r | |
84 | (VOID **) &ParentDevicePath,\r | |
85 | This->DriverBindingHandle,\r | |
86 | Controller,\r | |
87 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
88 | );\r | |
89 | if (Status == EFI_ALREADY_STARTED) {\r | |
90 | return EFI_SUCCESS;\r | |
91 | }\r | |
92 | \r | |
93 | if (EFI_ERROR (Status)) {\r | |
94 | return Status;\r | |
95 | }\r | |
96 | \r | |
97 | gBS->CloseProtocol (\r | |
98 | Controller,\r | |
99 | &gEfiDevicePathProtocolGuid,\r | |
100 | This->DriverBindingHandle,\r | |
101 | Controller\r | |
102 | );\r | |
103 | \r | |
104 | //\r | |
105 | // The Controller must support the Serial I/O Protocol.\r | |
106 | // This driver is a bus driver with at most 1 child device, so it is\r | |
107 | // ok for it to be already started.\r | |
108 | //\r | |
109 | Status = gBS->OpenProtocol (\r | |
110 | Controller,\r | |
111 | &gEfiSerialIoProtocolGuid,\r | |
112 | (VOID **) &SerialIo,\r | |
113 | This->DriverBindingHandle,\r | |
114 | Controller,\r | |
115 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
116 | );\r | |
117 | if (Status == EFI_ALREADY_STARTED) {\r | |
118 | return EFI_SUCCESS;\r | |
119 | }\r | |
120 | \r | |
121 | if (EFI_ERROR (Status)) {\r | |
122 | return Status;\r | |
123 | }\r | |
124 | //\r | |
125 | // Close the I/O Abstraction(s) used to perform the supported test\r | |
126 | //\r | |
127 | gBS->CloseProtocol (\r | |
128 | Controller,\r | |
129 | &gEfiSerialIoProtocolGuid,\r | |
130 | This->DriverBindingHandle,\r | |
131 | Controller\r | |
132 | );\r | |
133 | \r | |
134 | return Status;\r | |
135 | }\r | |
136 | \r | |
137 | EFI_STATUS\r | |
138 | EFIAPI\r | |
139 | TerminalDriverBindingStart (\r | |
140 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
141 | IN EFI_HANDLE Controller,\r | |
142 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
143 | )\r | |
144 | /*++\r | |
145 | \r | |
146 | Routine Description:\r | |
147 | \r | |
148 | Start the controller.\r | |
149 | \r | |
150 | Arguments:\r | |
151 | \r | |
152 | This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
153 | Controller - The handle of the controller to start.\r | |
154 | RemainingDevicePath - A pointer to the remaining portion of a devcie path.\r | |
155 | \r | |
156 | Returns:\r | |
157 | \r | |
158 | EFI_SUCCESS.\r | |
159 | \r | |
160 | --*/\r | |
161 | {\r | |
162 | EFI_STATUS Status;\r | |
163 | EFI_SERIAL_IO_PROTOCOL *SerialIo;\r | |
164 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
165 | VENDOR_DEVICE_PATH *Node;\r | |
166 | VENDOR_DEVICE_PATH *DefaultNode;\r | |
167 | EFI_SERIAL_IO_MODE *Mode;\r | |
168 | UINTN SerialInTimeOut;\r | |
169 | TERMINAL_DEV *TerminalDevice;\r | |
170 | UINT8 TerminalType;\r | |
171 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r | |
172 | UINTN EntryCount;\r | |
173 | UINTN Index;\r | |
174 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
175 | \r | |
176 | TerminalDevice = NULL;\r | |
177 | DefaultNode = NULL;\r | |
178 | //\r | |
179 | // Get the Device Path Protocol to build the device path of the child device\r | |
180 | //\r | |
181 | Status = gBS->OpenProtocol (\r | |
182 | Controller,\r | |
183 | &gEfiDevicePathProtocolGuid,\r | |
184 | (VOID **) &ParentDevicePath,\r | |
185 | This->DriverBindingHandle,\r | |
186 | Controller,\r | |
187 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
188 | );\r | |
189 | if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r | |
190 | return Status;\r | |
191 | }\r | |
95276127 | 192 | \r |
193 | //\r | |
194 | // Open the Serial I/O Protocol BY_DRIVER. It might already be started.\r | |
195 | //\r | |
196 | Status = gBS->OpenProtocol (\r | |
197 | Controller,\r | |
198 | &gEfiSerialIoProtocolGuid,\r | |
199 | (VOID **) &SerialIo,\r | |
200 | This->DriverBindingHandle,\r | |
201 | Controller,\r | |
202 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
203 | );\r | |
204 | if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r | |
205 | return Status;\r | |
206 | }\r | |
207 | \r | |
208 | if (Status != EFI_ALREADY_STARTED) {\r | |
209 | //\r | |
210 | // If Serial I/O is not already open by this driver, then tag the handle\r | |
211 | // with the Terminal Driver GUID and update the ConInDev, ConOutDev, and\r | |
212 | // StdErrDev variables with the list of possible terminal types on this\r | |
213 | // serial port.\r | |
214 | //\r | |
215 | Status = gBS->OpenProtocol (\r | |
216 | Controller,\r | |
217 | &gEfiCallerIdGuid,\r | |
218 | NULL,\r | |
219 | This->DriverBindingHandle,\r | |
220 | Controller,\r | |
221 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
222 | );\r | |
223 | if (EFI_ERROR (Status)) {\r | |
224 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
225 | &Controller,\r | |
226 | &gEfiCallerIdGuid,\r | |
227 | DuplicateDevicePath (ParentDevicePath),\r | |
228 | NULL\r | |
229 | );\r | |
230 | if (EFI_ERROR (Status)) {\r | |
231 | goto Error;\r | |
232 | }\r | |
233 | //\r | |
234 | // if the serial device is a hot plug device, do not update the\r | |
235 | // ConInDev, ConOutDev, and StdErrDev variables.\r | |
236 | //\r | |
237 | Status = gBS->OpenProtocol (\r | |
238 | Controller,\r | |
239 | &gEfiHotPlugDeviceGuid,\r | |
240 | NULL,\r | |
241 | This->DriverBindingHandle,\r | |
242 | Controller,\r | |
243 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
244 | );\r | |
245 | if (EFI_ERROR (Status)) {\r | |
246 | TerminalUpdateConsoleDevVariable ((CHAR16 *)VarConsoleInpDev, ParentDevicePath);\r | |
247 | TerminalUpdateConsoleDevVariable ((CHAR16 *)VarConsoleOutDev, ParentDevicePath);\r | |
248 | TerminalUpdateConsoleDevVariable ((CHAR16 *)VarErrorOutDev, ParentDevicePath);\r | |
249 | }\r | |
250 | }\r | |
251 | }\r | |
252 | //\r | |
253 | // Make sure a child handle does not already exist. This driver can only\r | |
254 | // produce one child per serial port.\r | |
255 | //\r | |
256 | Status = gBS->OpenProtocolInformation (\r | |
257 | Controller,\r | |
258 | &gEfiSerialIoProtocolGuid,\r | |
259 | &OpenInfoBuffer,\r | |
260 | &EntryCount\r | |
261 | );\r | |
262 | if (!EFI_ERROR (Status)) {\r | |
263 | Status = EFI_SUCCESS;\r | |
264 | for (Index = 0; Index < EntryCount; Index++) {\r | |
265 | if (OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) {\r | |
266 | Status = EFI_ALREADY_STARTED;\r | |
267 | }\r | |
268 | }\r | |
269 | \r | |
270 | FreePool (OpenInfoBuffer);\r | |
271 | if (EFI_ERROR (Status)) {\r | |
272 | return Status;\r | |
273 | }\r | |
274 | }\r | |
275 | //\r | |
276 | // If RemainingDevicePath is NULL, then create default device path node\r | |
277 | //\r | |
278 | if (RemainingDevicePath == NULL) {\r | |
279 | DefaultNode = AllocatePool (sizeof (VENDOR_DEVICE_PATH));\r | |
280 | if (DefaultNode == NULL) {\r | |
281 | Status = EFI_OUT_OF_RESOURCES;\r | |
282 | goto Error;\r | |
283 | }\r | |
284 | \r | |
285 | CopyMem (&DefaultNode->Guid, &gEfiPcAnsiGuid, sizeof (EFI_GUID));\r | |
286 | RemainingDevicePath = (EFI_DEVICE_PATH_PROTOCOL*) DefaultNode;\r | |
287 | }\r | |
288 | //\r | |
289 | // Use the RemainingDevicePath to determine the terminal type\r | |
290 | //\r | |
291 | Node = (VENDOR_DEVICE_PATH *) RemainingDevicePath;\r | |
292 | \r | |
293 | if (CompareGuid (&Node->Guid, &gEfiPcAnsiGuid)) {\r | |
294 | \r | |
295 | TerminalType = PcAnsiType;\r | |
296 | \r | |
297 | } else if (CompareGuid (&Node->Guid, &gEfiVT100Guid)) {\r | |
298 | \r | |
299 | TerminalType = VT100Type;\r | |
300 | \r | |
301 | } else if (CompareGuid (&Node->Guid, &gEfiVT100PlusGuid)) {\r | |
302 | \r | |
303 | TerminalType = VT100PlusType;\r | |
304 | \r | |
305 | } else if (CompareGuid (&Node->Guid, &gEfiVTUTF8Guid)) {\r | |
306 | \r | |
307 | TerminalType = VTUTF8Type;\r | |
308 | \r | |
309 | } else {\r | |
310 | goto Error;\r | |
311 | }\r | |
312 | //\r | |
313 | // Initialize the Terminal Dev\r | |
314 | //\r | |
315 | TerminalDevice = AllocatePool (sizeof (TERMINAL_DEV));\r | |
316 | if (TerminalDevice == NULL) {\r | |
317 | Status = EFI_OUT_OF_RESOURCES;\r | |
318 | goto Error;\r | |
319 | }\r | |
320 | \r | |
321 | ZeroMem (TerminalDevice, sizeof (TERMINAL_DEV));\r | |
322 | \r | |
323 | TerminalDevice->Signature = TERMINAL_DEV_SIGNATURE;\r | |
324 | \r | |
325 | TerminalDevice->TerminalType = TerminalType;\r | |
326 | \r | |
327 | TerminalDevice->SerialIo = SerialIo;\r | |
328 | \r | |
329 | //\r | |
330 | // Simple Input Protocol\r | |
331 | //\r | |
332 | TerminalDevice->SimpleInput.Reset = TerminalConInReset;\r | |
333 | TerminalDevice->SimpleInput.ReadKeyStroke = TerminalConInReadKeyStroke;\r | |
334 | \r | |
335 | Status = gBS->CreateEvent (\r | |
336 | EVT_NOTIFY_WAIT,\r | |
337 | TPL_NOTIFY,\r | |
338 | TerminalConInWaitForKey,\r | |
339 | &TerminalDevice->SimpleInput,\r | |
340 | &TerminalDevice->SimpleInput.WaitForKey\r | |
341 | );\r | |
342 | if (EFI_ERROR (Status)) {\r | |
343 | goto Error;\r | |
344 | }\r | |
345 | //\r | |
346 | // initialize the FIFO buffer used for accommodating\r | |
347 | // the pre-read pending characters\r | |
348 | //\r | |
349 | InitializeRawFiFo (TerminalDevice);\r | |
350 | InitializeUnicodeFiFo (TerminalDevice);\r | |
351 | InitializeEfiKeyFiFo (TerminalDevice);\r | |
352 | \r | |
353 | //\r | |
354 | // Set the timeout value of serial buffer for\r | |
355 | // keystroke response performance issue\r | |
356 | //\r | |
357 | Mode = TerminalDevice->SerialIo->Mode;\r | |
358 | \r | |
359 | SerialInTimeOut = 0;\r | |
360 | if (Mode->BaudRate != 0) {\r | |
361 | SerialInTimeOut = (1 + Mode->DataBits + Mode->StopBits) * 2 * 1000000 / (UINTN) Mode->BaudRate;\r | |
362 | }\r | |
363 | \r | |
364 | Status = TerminalDevice->SerialIo->SetAttributes (\r | |
365 | TerminalDevice->SerialIo,\r | |
366 | Mode->BaudRate,\r | |
367 | Mode->ReceiveFifoDepth,\r | |
368 | (UINT32) SerialInTimeOut,\r | |
369 | (EFI_PARITY_TYPE) (Mode->Parity),\r | |
370 | (UINT8) Mode->DataBits,\r | |
371 | (EFI_STOP_BITS_TYPE) (Mode->StopBits)\r | |
372 | );\r | |
373 | if (EFI_ERROR (Status)) {\r | |
374 | //\r | |
375 | // if set attributes operation fails, invalidate\r | |
376 | // the value of SerialInTimeOut,thus make it\r | |
377 | // inconsistent with the default timeout value\r | |
378 | // of serial buffer. This will invoke the recalculation\r | |
379 | // in the readkeystroke routine.\r | |
380 | //\r | |
381 | TerminalDevice->SerialInTimeOut = 0;\r | |
382 | } else {\r | |
383 | TerminalDevice->SerialInTimeOut = SerialInTimeOut;\r | |
384 | }\r | |
385 | //\r | |
386 | // Build the device path for the child device\r | |
387 | //\r | |
388 | Status = SetTerminalDevicePath (\r | |
389 | TerminalDevice->TerminalType,\r | |
390 | ParentDevicePath,\r | |
391 | &TerminalDevice->DevicePath\r | |
392 | );\r | |
393 | if (EFI_ERROR (Status)) {\r | |
394 | goto Error;\r | |
395 | }\r | |
396 | \r | |
397 | DevicePath = TerminalDevice->DevicePath;\r | |
398 | \r | |
399 | Status = TerminalDevice->SimpleInput.Reset (\r | |
400 | &TerminalDevice->SimpleInput,\r | |
401 | FALSE\r | |
402 | );\r | |
403 | if (EFI_ERROR (Status)) {\r | |
404 | //\r | |
405 | // Need to report Error Code first\r | |
406 | //\r | |
407 | goto ReportError;\r | |
408 | }\r | |
409 | //\r | |
410 | // Simple Text Output Protocol\r | |
411 | //\r | |
412 | TerminalDevice->SimpleTextOutput.Reset = TerminalConOutReset;\r | |
413 | TerminalDevice->SimpleTextOutput.OutputString = TerminalConOutOutputString;\r | |
414 | TerminalDevice->SimpleTextOutput.TestString = TerminalConOutTestString;\r | |
415 | TerminalDevice->SimpleTextOutput.QueryMode = TerminalConOutQueryMode;\r | |
416 | TerminalDevice->SimpleTextOutput.SetMode = TerminalConOutSetMode;\r | |
417 | TerminalDevice->SimpleTextOutput.SetAttribute = TerminalConOutSetAttribute;\r | |
418 | TerminalDevice->SimpleTextOutput.ClearScreen = TerminalConOutClearScreen;\r | |
419 | TerminalDevice->SimpleTextOutput.SetCursorPosition = TerminalConOutSetCursorPosition;\r | |
420 | TerminalDevice->SimpleTextOutput.EnableCursor = TerminalConOutEnableCursor;\r | |
421 | TerminalDevice->SimpleTextOutput.Mode = &TerminalDevice->SimpleTextOutputMode;\r | |
422 | \r | |
423 | TerminalDevice->SimpleTextOutputMode.MaxMode = 1;\r | |
424 | //\r | |
425 | // For terminal devices, cursor is always visible\r | |
426 | //\r | |
427 | TerminalDevice->SimpleTextOutputMode.CursorVisible = TRUE;\r | |
428 | TerminalDevice->SimpleTextOutputMode.Attribute = EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK);\r | |
429 | \r | |
430 | Status = TerminalDevice->SimpleTextOutput.Reset (\r | |
431 | &TerminalDevice->SimpleTextOutput,\r | |
432 | FALSE\r | |
433 | );\r | |
434 | if (EFI_ERROR (Status)) {\r | |
435 | goto ReportError;\r | |
436 | }\r | |
437 | \r | |
438 | Status = TerminalDevice->SimpleTextOutput.SetMode (\r | |
439 | &TerminalDevice->SimpleTextOutput,\r | |
440 | 0\r | |
441 | );\r | |
442 | if (EFI_ERROR (Status)) {\r | |
443 | goto ReportError;\r | |
444 | }\r | |
445 | \r | |
446 | Status = TerminalDevice->SimpleTextOutput.EnableCursor (\r | |
447 | &TerminalDevice->SimpleTextOutput,\r | |
448 | TRUE\r | |
449 | );\r | |
450 | if (EFI_ERROR (Status)) {\r | |
451 | goto ReportError;\r | |
452 | }\r | |
453 | //\r | |
454 | //\r | |
455 | //\r | |
456 | TerminalDevice->InputState = INPUT_STATE_DEFAULT;\r | |
457 | TerminalDevice->ResetState = RESET_STATE_DEFAULT;\r | |
458 | \r | |
459 | Status = gBS->CreateEvent (\r | |
460 | EVT_TIMER,\r | |
461 | TPL_CALLBACK,\r | |
462 | NULL,\r | |
463 | NULL,\r | |
464 | &TerminalDevice->TwoSecondTimeOut\r | |
465 | );\r | |
466 | \r | |
467 | //\r | |
468 | // Build the component name for the child device\r | |
469 | //\r | |
470 | TerminalDevice->ControllerNameTable = NULL;\r | |
471 | switch (TerminalDevice->TerminalType) {\r | |
472 | case PcAnsiType:\r | |
473 | AddUnicodeString (\r | |
474 | "eng",\r | |
475 | gTerminalComponentName.SupportedLanguages,\r | |
476 | &TerminalDevice->ControllerNameTable,\r | |
477 | (CHAR16 *)L"PC-ANSI Serial Console"\r | |
478 | );\r | |
479 | break;\r | |
480 | \r | |
481 | case VT100Type:\r | |
482 | AddUnicodeString (\r | |
483 | "eng",\r | |
484 | gTerminalComponentName.SupportedLanguages,\r | |
485 | &TerminalDevice->ControllerNameTable,\r | |
486 | (CHAR16 *)L"VT-100 Serial Console"\r | |
487 | );\r | |
488 | break;\r | |
489 | \r | |
490 | case VT100PlusType:\r | |
491 | AddUnicodeString (\r | |
492 | "eng",\r | |
493 | gTerminalComponentName.SupportedLanguages,\r | |
494 | &TerminalDevice->ControllerNameTable,\r | |
495 | (CHAR16 *)L"VT-100+ Serial Console"\r | |
496 | );\r | |
497 | break;\r | |
498 | \r | |
499 | case VTUTF8Type:\r | |
500 | AddUnicodeString (\r | |
501 | "eng",\r | |
502 | gTerminalComponentName.SupportedLanguages,\r | |
503 | &TerminalDevice->ControllerNameTable,\r | |
504 | (CHAR16 *)L"VT-UTF8 Serial Console"\r | |
505 | );\r | |
506 | break;\r | |
507 | }\r | |
508 | //\r | |
509 | // Install protocol interfaces for the serial device.\r | |
510 | //\r | |
511 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
512 | &TerminalDevice->Handle,\r | |
513 | &gEfiDevicePathProtocolGuid,\r | |
514 | TerminalDevice->DevicePath,\r | |
515 | &gEfiSimpleTextInProtocolGuid,\r | |
516 | &TerminalDevice->SimpleInput,\r | |
517 | &gEfiSimpleTextOutProtocolGuid,\r | |
518 | &TerminalDevice->SimpleTextOutput,\r | |
519 | NULL\r | |
520 | );\r | |
521 | if (EFI_ERROR (Status)) {\r | |
522 | goto Error;\r | |
523 | }\r | |
524 | //\r | |
525 | // if the serial device is a hot plug device, attaches the HotPlugGuid\r | |
526 | // onto the terminal device handle.\r | |
527 | //\r | |
528 | Status = gBS->OpenProtocol (\r | |
529 | Controller,\r | |
530 | &gEfiHotPlugDeviceGuid,\r | |
531 | NULL,\r | |
532 | This->DriverBindingHandle,\r | |
533 | Controller,\r | |
534 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
535 | );\r | |
536 | if (!EFI_ERROR (Status)) {\r | |
537 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
538 | &TerminalDevice->Handle,\r | |
539 | &gEfiHotPlugDeviceGuid,\r | |
540 | NULL,\r | |
541 | NULL\r | |
542 | );\r | |
543 | }\r | |
544 | //\r | |
545 | // Register the Parent-Child relationship via\r | |
546 | // EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r | |
547 | //\r | |
548 | Status = gBS->OpenProtocol (\r | |
549 | Controller,\r | |
550 | &gEfiSerialIoProtocolGuid,\r | |
551 | (VOID **) &TerminalDevice->SerialIo,\r | |
552 | This->DriverBindingHandle,\r | |
553 | TerminalDevice->Handle,\r | |
554 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
555 | );\r | |
556 | if (EFI_ERROR (Status)) {\r | |
557 | goto Error;\r | |
558 | }\r | |
559 | \r | |
560 | if (DefaultNode != NULL) {\r | |
561 | FreePool (DefaultNode);\r | |
562 | }\r | |
563 | \r | |
564 | return EFI_SUCCESS;\r | |
565 | \r | |
566 | ReportError:\r | |
567 | //\r | |
568 | // Report error code before exiting\r | |
569 | //\r | |
570 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
571 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
97a079ed | 572 | PcdGet32 (PcdStatusCodeValueRemoteConsoleError),\r |
95276127 | 573 | DevicePath\r |
574 | );\r | |
575 | \r | |
576 | Error:\r | |
577 | //\r | |
578 | // Use the Stop() function to free all resources allocated in Start()\r | |
579 | //\r | |
580 | if (TerminalDevice != NULL) {\r | |
581 | \r | |
582 | if (TerminalDevice->Handle != NULL) {\r | |
583 | This->Stop (This, Controller, 1, &TerminalDevice->Handle);\r | |
584 | } else {\r | |
585 | \r | |
586 | if (TerminalDevice->TwoSecondTimeOut != NULL) {\r | |
587 | gBS->CloseEvent (TerminalDevice->TwoSecondTimeOut);\r | |
588 | }\r | |
589 | \r | |
590 | if (TerminalDevice->SimpleInput.WaitForKey != NULL) {\r | |
591 | gBS->CloseEvent (TerminalDevice->SimpleInput.WaitForKey);\r | |
592 | }\r | |
593 | \r | |
594 | if (TerminalDevice->ControllerNameTable != NULL) {\r | |
595 | FreeUnicodeStringTable (TerminalDevice->ControllerNameTable);\r | |
596 | }\r | |
597 | \r | |
598 | if (TerminalDevice->DevicePath != NULL) {\r | |
599 | FreePool (TerminalDevice->DevicePath);\r | |
600 | }\r | |
601 | \r | |
602 | FreePool (TerminalDevice);\r | |
603 | }\r | |
604 | }\r | |
605 | \r | |
606 | if (DefaultNode != NULL) {\r | |
607 | FreePool (DefaultNode);\r | |
608 | }\r | |
609 | \r | |
610 | This->Stop (This, Controller, 0, NULL);\r | |
611 | \r | |
612 | return Status;\r | |
613 | }\r | |
614 | \r | |
615 | EFI_STATUS\r | |
616 | EFIAPI\r | |
617 | TerminalDriverBindingStop (\r | |
618 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
619 | IN EFI_HANDLE Controller,\r | |
620 | IN UINTN NumberOfChildren,\r | |
621 | IN EFI_HANDLE *ChildHandleBuffer\r | |
622 | )\r | |
623 | /*++\r | |
624 | \r | |
625 | Routine Description:\r | |
626 | \r | |
627 | Stop a device controller.\r | |
628 | \r | |
629 | Arguments:\r | |
630 | \r | |
631 | This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
632 | Controller - A handle to the device being stopped.\r | |
633 | NumberOfChildren - The number of child device handles in ChildHandleBuffer.\r | |
634 | ChildHandleBuffer - An array of child handles to be freed.\r | |
635 | \r | |
636 | Returns:\r | |
637 | \r | |
638 | EFI_SUCCESS - Operation successful.\r | |
639 | EFI_DEVICE_ERROR - Devices error.\r | |
640 | \r | |
641 | --*/\r | |
642 | {\r | |
643 | EFI_STATUS Status;\r | |
644 | UINTN Index;\r | |
645 | BOOLEAN AllChildrenStopped;\r | |
646 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOutput;\r | |
647 | TERMINAL_DEV *TerminalDevice;\r | |
648 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
649 | EFI_SERIAL_IO_PROTOCOL *SerialIo;\r | |
650 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
651 | \r | |
652 | Status = gBS->HandleProtocol (\r | |
653 | Controller,\r | |
654 | &gEfiDevicePathProtocolGuid,\r | |
655 | (VOID **) &DevicePath\r | |
656 | );\r | |
657 | if (EFI_ERROR (Status)) {\r | |
658 | return Status;\r | |
659 | }\r | |
95276127 | 660 | \r |
661 | //\r | |
662 | // Complete all outstanding transactions to Controller.\r | |
663 | // Don't allow any new transaction to Controller to be started.\r | |
664 | //\r | |
665 | if (NumberOfChildren == 0) {\r | |
666 | //\r | |
667 | // Close the bus driver\r | |
668 | //\r | |
669 | Status = gBS->OpenProtocol (\r | |
670 | Controller,\r | |
671 | &gEfiCallerIdGuid,\r | |
672 | (VOID **) &ParentDevicePath,\r | |
673 | This->DriverBindingHandle,\r | |
674 | Controller,\r | |
675 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
676 | );\r | |
677 | if (!EFI_ERROR (Status)) {\r | |
678 | //\r | |
679 | // Remove Parent Device Path from\r | |
680 | // the Console Device Environment Variables\r | |
681 | //\r | |
682 | TerminalRemoveConsoleDevVariable ((CHAR16 *)VarConsoleInpDev, ParentDevicePath);\r | |
683 | TerminalRemoveConsoleDevVariable ((CHAR16 *)VarConsoleOutDev, ParentDevicePath);\r | |
684 | TerminalRemoveConsoleDevVariable ((CHAR16 *)VarErrorOutDev, ParentDevicePath);\r | |
685 | \r | |
686 | //\r | |
687 | // Uninstall the Terminal Driver's GUID Tag from the Serial controller\r | |
688 | //\r | |
689 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
690 | Controller,\r | |
691 | &gEfiCallerIdGuid,\r | |
692 | ParentDevicePath,\r | |
693 | NULL\r | |
694 | );\r | |
695 | \r | |
696 | //\r | |
697 | // Free the ParentDevicePath that was duplicated in Start()\r | |
698 | //\r | |
699 | if (!EFI_ERROR (Status)) {\r | |
700 | FreePool (ParentDevicePath);\r | |
701 | }\r | |
702 | }\r | |
703 | \r | |
704 | gBS->CloseProtocol (\r | |
705 | Controller,\r | |
706 | &gEfiSerialIoProtocolGuid,\r | |
707 | This->DriverBindingHandle,\r | |
708 | Controller\r | |
709 | );\r | |
710 | \r | |
711 | gBS->CloseProtocol (\r | |
712 | Controller,\r | |
713 | &gEfiDevicePathProtocolGuid,\r | |
714 | This->DriverBindingHandle,\r | |
715 | Controller\r | |
716 | );\r | |
717 | \r | |
718 | return EFI_SUCCESS;\r | |
719 | }\r | |
720 | \r | |
721 | AllChildrenStopped = TRUE;\r | |
722 | \r | |
723 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
724 | \r | |
725 | Status = gBS->OpenProtocol (\r | |
726 | ChildHandleBuffer[Index],\r | |
727 | &gEfiSimpleTextOutProtocolGuid,\r | |
728 | (VOID **) &SimpleTextOutput,\r | |
729 | This->DriverBindingHandle,\r | |
730 | ChildHandleBuffer[Index],\r | |
731 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
732 | );\r | |
733 | if (!EFI_ERROR (Status)) {\r | |
734 | \r | |
735 | TerminalDevice = TERMINAL_CON_OUT_DEV_FROM_THIS (SimpleTextOutput);\r | |
736 | \r | |
737 | gBS->CloseProtocol (\r | |
738 | Controller,\r | |
739 | &gEfiSerialIoProtocolGuid,\r | |
740 | This->DriverBindingHandle,\r | |
741 | ChildHandleBuffer[Index]\r | |
742 | );\r | |
743 | \r | |
744 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
745 | ChildHandleBuffer[Index],\r | |
746 | &gEfiSimpleTextInProtocolGuid,\r | |
747 | &TerminalDevice->SimpleInput,\r | |
748 | &gEfiSimpleTextOutProtocolGuid,\r | |
749 | &TerminalDevice->SimpleTextOutput,\r | |
750 | &gEfiDevicePathProtocolGuid,\r | |
751 | TerminalDevice->DevicePath,\r | |
752 | NULL\r | |
753 | );\r | |
754 | if (EFI_ERROR (Status)) {\r | |
755 | gBS->OpenProtocol (\r | |
756 | Controller,\r | |
757 | &gEfiSerialIoProtocolGuid,\r | |
758 | (VOID **) &SerialIo,\r | |
759 | This->DriverBindingHandle,\r | |
760 | ChildHandleBuffer[Index],\r | |
761 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
762 | );\r | |
763 | } else {\r | |
764 | \r | |
765 | if (TerminalDevice->ControllerNameTable != NULL) {\r | |
766 | FreeUnicodeStringTable (TerminalDevice->ControllerNameTable);\r | |
767 | }\r | |
768 | \r | |
769 | Status = gBS->OpenProtocol (\r | |
770 | ChildHandleBuffer[Index],\r | |
771 | &gEfiHotPlugDeviceGuid,\r | |
772 | NULL,\r | |
773 | This->DriverBindingHandle,\r | |
774 | Controller,\r | |
775 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
776 | );\r | |
777 | if (!EFI_ERROR (Status)) {\r | |
778 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
779 | ChildHandleBuffer[Index],\r | |
780 | &gEfiHotPlugDeviceGuid,\r | |
781 | NULL,\r | |
782 | NULL\r | |
783 | );\r | |
784 | } else {\r | |
785 | Status = EFI_SUCCESS;\r | |
786 | }\r | |
787 | \r | |
788 | gBS->CloseEvent (TerminalDevice->TwoSecondTimeOut);\r | |
789 | gBS->CloseEvent (TerminalDevice->SimpleInput.WaitForKey);\r | |
790 | FreePool (TerminalDevice->DevicePath);\r | |
791 | FreePool (TerminalDevice);\r | |
792 | }\r | |
793 | }\r | |
794 | \r | |
795 | if (EFI_ERROR (Status)) {\r | |
796 | AllChildrenStopped = FALSE;\r | |
797 | }\r | |
798 | }\r | |
799 | \r | |
800 | if (!AllChildrenStopped) {\r | |
801 | return EFI_DEVICE_ERROR;\r | |
802 | }\r | |
803 | \r | |
804 | return EFI_SUCCESS;\r | |
805 | }\r | |
806 | \r | |
807 | VOID\r | |
808 | TerminalUpdateConsoleDevVariable (\r | |
809 | IN CHAR16 *VariableName,\r | |
810 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath\r | |
811 | )\r | |
812 | {\r | |
813 | EFI_STATUS Status;\r | |
814 | UINTN VariableSize;\r | |
815 | UINT8 TerminalType;\r | |
816 | EFI_DEVICE_PATH_PROTOCOL *Variable;\r | |
817 | EFI_DEVICE_PATH_PROTOCOL *NewVariable;\r | |
818 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
819 | \r | |
820 | Variable = NULL;\r | |
821 | \r | |
822 | //\r | |
823 | // Get global variable and its size according to the name given.\r | |
824 | //\r | |
825 | Variable = TerminalGetVariableAndSize (\r | |
826 | VariableName,\r | |
827 | &gEfiGlobalVariableGuid,\r | |
828 | &VariableSize\r | |
829 | );\r | |
830 | //\r | |
831 | // Append terminal device path onto the variable.\r | |
832 | //\r | |
833 | for (TerminalType = PcAnsiType; TerminalType <= VTUTF8Type; TerminalType++) {\r | |
834 | SetTerminalDevicePath (TerminalType, ParentDevicePath, &TempDevicePath);\r | |
835 | NewVariable = AppendDevicePathInstance (Variable, TempDevicePath);\r | |
836 | if (Variable != NULL) {\r | |
837 | FreePool (Variable);\r | |
838 | }\r | |
839 | \r | |
840 | if (TempDevicePath != NULL) {\r | |
841 | FreePool (TempDevicePath);\r | |
842 | }\r | |
843 | \r | |
844 | Variable = NewVariable;\r | |
845 | }\r | |
846 | \r | |
847 | VariableSize = GetDevicePathSize (Variable);\r | |
848 | \r | |
849 | Status = gRT->SetVariable (\r | |
850 | VariableName,\r | |
851 | &gEfiGlobalVariableGuid,\r | |
852 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
853 | VariableSize,\r | |
854 | Variable\r | |
855 | );\r | |
856 | ASSERT_EFI_ERROR (Status);\r | |
857 | FreePool (Variable);\r | |
858 | \r | |
859 | return ;\r | |
860 | }\r | |
861 | \r | |
862 | VOID\r | |
863 | TerminalRemoveConsoleDevVariable (\r | |
864 | IN CHAR16 *VariableName,\r | |
865 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath\r | |
866 | )\r | |
867 | /*++\r | |
868 | \r | |
869 | Routine Description:\r | |
870 | \r | |
871 | Remove console device variable.\r | |
872 | \r | |
873 | Arguments:\r | |
874 | \r | |
875 | VariableName - A pointer to the variable name.\r | |
876 | ParentDevicePath - A pointer to the parent device path.\r | |
877 | \r | |
878 | Returns:\r | |
879 | \r | |
880 | --*/\r | |
881 | {\r | |
882 | EFI_STATUS Status;\r | |
883 | BOOLEAN FoundOne;\r | |
884 | BOOLEAN Match;\r | |
885 | UINTN VariableSize;\r | |
886 | UINTN InstanceSize;\r | |
887 | UINT8 TerminalType;\r | |
888 | EFI_DEVICE_PATH_PROTOCOL *Instance;\r | |
889 | EFI_DEVICE_PATH_PROTOCOL *Variable;\r | |
890 | EFI_DEVICE_PATH_PROTOCOL *OriginalVariable;\r | |
891 | EFI_DEVICE_PATH_PROTOCOL *NewVariable;\r | |
892 | EFI_DEVICE_PATH_PROTOCOL *SavedNewVariable;\r | |
893 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
894 | \r | |
895 | Variable = NULL;\r | |
896 | Instance = NULL;\r | |
897 | \r | |
898 | //\r | |
899 | // Get global variable and its size according to the name given.\r | |
900 | //\r | |
901 | Variable = TerminalGetVariableAndSize (\r | |
902 | VariableName,\r | |
903 | &gEfiGlobalVariableGuid,\r | |
904 | &VariableSize\r | |
905 | );\r | |
906 | if (Variable == NULL) {\r | |
907 | return ;\r | |
908 | }\r | |
909 | \r | |
910 | FoundOne = FALSE;\r | |
911 | OriginalVariable = Variable;\r | |
912 | NewVariable = NULL;\r | |
913 | \r | |
914 | //\r | |
915 | // Get first device path instance from Variable\r | |
916 | //\r | |
917 | Instance = GetNextDevicePathInstance (&Variable, &InstanceSize);\r | |
918 | if (Instance == NULL) {\r | |
919 | FreePool (OriginalVariable);\r | |
920 | return ;\r | |
921 | }\r | |
922 | //\r | |
923 | // Loop through all the device path instances of Variable\r | |
924 | //\r | |
925 | do {\r | |
926 | //\r | |
927 | // Loop through all the terminal types that this driver supports\r | |
928 | //\r | |
929 | Match = FALSE;\r | |
930 | for (TerminalType = PcAnsiType; TerminalType <= VTUTF8Type; TerminalType++) {\r | |
931 | \r | |
932 | SetTerminalDevicePath (TerminalType, ParentDevicePath, &TempDevicePath);\r | |
933 | \r | |
934 | //\r | |
935 | // Compare the genterated device path to the current device path instance\r | |
936 | //\r | |
937 | if (TempDevicePath != NULL) {\r | |
938 | if (CompareMem (Instance, TempDevicePath, InstanceSize) == 0) {\r | |
939 | Match = TRUE;\r | |
940 | FoundOne = TRUE;\r | |
941 | }\r | |
942 | \r | |
943 | FreePool (TempDevicePath);\r | |
944 | }\r | |
945 | }\r | |
946 | //\r | |
947 | // If a match was not found, then keep the current device path instance\r | |
948 | //\r | |
949 | if (!Match) {\r | |
950 | SavedNewVariable = NewVariable;\r | |
951 | NewVariable = AppendDevicePathInstance (NewVariable, Instance);\r | |
952 | if (SavedNewVariable != NULL) {\r | |
953 | FreePool (SavedNewVariable);\r | |
954 | }\r | |
955 | }\r | |
956 | //\r | |
957 | // Get next device path instance from Variable\r | |
958 | //\r | |
959 | FreePool (Instance);\r | |
960 | Instance = GetNextDevicePathInstance (&Variable, &InstanceSize);\r | |
961 | } while (Instance != NULL);\r | |
962 | \r | |
963 | FreePool (OriginalVariable);\r | |
964 | \r | |
965 | if (FoundOne) {\r | |
966 | VariableSize = GetDevicePathSize (NewVariable);\r | |
967 | \r | |
968 | Status = gRT->SetVariable (\r | |
969 | VariableName,\r | |
970 | &gEfiGlobalVariableGuid,\r | |
971 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
972 | VariableSize,\r | |
973 | NewVariable\r | |
974 | );\r | |
975 | ASSERT_EFI_ERROR (Status);\r | |
976 | }\r | |
977 | \r | |
978 | if (NewVariable != NULL) {\r | |
979 | FreePool (NewVariable);\r | |
980 | }\r | |
981 | \r | |
982 | return ;\r | |
983 | }\r | |
984 | \r | |
985 | VOID *\r | |
986 | TerminalGetVariableAndSize (\r | |
987 | IN CHAR16 *Name,\r | |
988 | IN EFI_GUID *VendorGuid,\r | |
989 | OUT UINTN *VariableSize\r | |
990 | )\r | |
991 | /*++\r | |
992 | \r | |
993 | Routine Description:\r | |
994 | Read the EFI variable (VendorGuid/Name) and return a dynamically allocated\r | |
995 | buffer, and the size of the buffer. On failure return NULL.\r | |
996 | \r | |
997 | Arguments:\r | |
998 | Name - String part of EFI variable name\r | |
999 | \r | |
1000 | VendorGuid - GUID part of EFI variable name\r | |
1001 | \r | |
1002 | VariableSize - Returns the size of the EFI variable that was read\r | |
1003 | \r | |
1004 | Returns:\r | |
1005 | Dynamically allocated memory that contains a copy of the EFI variable.\r | |
1006 | Caller is repsoncible freeing the buffer.\r | |
1007 | \r | |
1008 | NULL - Variable was not read\r | |
1009 | \r | |
1010 | --*/\r | |
1011 | {\r | |
1012 | EFI_STATUS Status;\r | |
1013 | UINTN BufferSize;\r | |
1014 | VOID *Buffer;\r | |
1015 | \r | |
1016 | Buffer = NULL;\r | |
1017 | \r | |
1018 | //\r | |
1019 | // Pass in a small size buffer to find the actual variable size.\r | |
1020 | //\r | |
1021 | BufferSize = 1;\r | |
1022 | Buffer = AllocatePool (BufferSize);\r | |
1023 | if (Buffer == NULL) {\r | |
1024 | *VariableSize = 0;\r | |
1025 | return NULL;\r | |
1026 | }\r | |
1027 | \r | |
1028 | Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);\r | |
1029 | \r | |
1030 | if (Status == EFI_SUCCESS) {\r | |
1031 | *VariableSize = BufferSize;\r | |
1032 | return Buffer;\r | |
1033 | \r | |
1034 | } else if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
1035 | //\r | |
1036 | // Allocate the buffer to return\r | |
1037 | //\r | |
1038 | FreePool (Buffer);\r | |
1039 | Buffer = AllocatePool (BufferSize);\r | |
1040 | if (Buffer == NULL) {\r | |
1041 | *VariableSize = 0;\r | |
1042 | return NULL;\r | |
1043 | }\r | |
1044 | //\r | |
1045 | // Read variable into the allocated buffer.\r | |
1046 | //\r | |
1047 | Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);\r | |
1048 | if (EFI_ERROR (Status)) {\r | |
1049 | BufferSize = 0;\r | |
1050 | FreePool (Buffer);\r | |
1051 | Buffer = NULL;\r | |
1052 | }\r | |
1053 | } else {\r | |
1054 | //\r | |
1055 | // Variable not found or other errors met.\r | |
1056 | //\r | |
1057 | BufferSize = 0;\r | |
1058 | FreePool (Buffer);\r | |
1059 | Buffer = NULL;\r | |
1060 | }\r | |
1061 | \r | |
1062 | *VariableSize = BufferSize;\r | |
1063 | return Buffer;\r | |
1064 | }\r | |
1065 | \r | |
1066 | EFI_STATUS\r | |
1067 | SetTerminalDevicePath (\r | |
1068 | IN UINT8 TerminalType,\r | |
1069 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r | |
1070 | OUT EFI_DEVICE_PATH_PROTOCOL **TerminalDevicePath\r | |
1071 | )\r | |
1072 | {\r | |
1073 | VENDOR_DEVICE_PATH Node;\r | |
1074 | \r | |
1075 | *TerminalDevicePath = NULL;\r | |
1076 | Node.Header.Type = MESSAGING_DEVICE_PATH;\r | |
1077 | Node.Header.SubType = MSG_VENDOR_DP;\r | |
1078 | \r | |
1079 | //\r | |
1080 | // generate terminal device path node according to terminal type.\r | |
1081 | //\r | |
1082 | switch (TerminalType) {\r | |
1083 | \r | |
1084 | case PcAnsiType:\r | |
1085 | CopyMem (\r | |
1086 | &Node.Guid,\r | |
1087 | &gEfiPcAnsiGuid,\r | |
1088 | sizeof (EFI_GUID)\r | |
1089 | );\r | |
1090 | break;\r | |
1091 | \r | |
1092 | case VT100Type:\r | |
1093 | CopyMem (\r | |
1094 | &Node.Guid,\r | |
1095 | &gEfiVT100Guid,\r | |
1096 | sizeof (EFI_GUID)\r | |
1097 | );\r | |
1098 | break;\r | |
1099 | \r | |
1100 | case VT100PlusType:\r | |
1101 | CopyMem (\r | |
1102 | &Node.Guid,\r | |
1103 | &gEfiVT100PlusGuid,\r | |
1104 | sizeof (EFI_GUID)\r | |
1105 | );\r | |
1106 | break;\r | |
1107 | \r | |
1108 | case VTUTF8Type:\r | |
1109 | CopyMem (\r | |
1110 | &Node.Guid,\r | |
1111 | &gEfiVTUTF8Guid,\r | |
1112 | sizeof (EFI_GUID)\r | |
1113 | );\r | |
1114 | break;\r | |
1115 | \r | |
1116 | default:\r | |
1117 | return EFI_UNSUPPORTED;\r | |
1118 | break;\r | |
1119 | }\r | |
1120 | \r | |
1121 | SetDevicePathNodeLength (\r | |
1122 | &Node.Header,\r | |
1123 | sizeof (VENDOR_DEVICE_PATH)\r | |
1124 | );\r | |
1125 | //\r | |
1126 | // append the terminal node onto parent device path\r | |
1127 | // to generate a complete terminal device path.\r | |
1128 | //\r | |
1129 | *TerminalDevicePath = AppendDevicePathNode (\r | |
1130 | ParentDevicePath,\r | |
1131 | (EFI_DEVICE_PATH_PROTOCOL *) &Node\r | |
1132 | );\r | |
1133 | if (*TerminalDevicePath == NULL) {\r | |
1134 | return EFI_OUT_OF_RESOURCES;\r | |
1135 | }\r | |
1136 | \r | |
1137 | return EFI_SUCCESS;\r | |
1138 | }\r | |
1139 | \r | |
1140 | VOID\r | |
1141 | InitializeRawFiFo (\r | |
1142 | IN TERMINAL_DEV *TerminalDevice\r | |
1143 | )\r | |
1144 | {\r | |
1145 | //\r | |
1146 | // Make the raw fifo empty.\r | |
1147 | //\r | |
1148 | TerminalDevice->RawFiFo.Head = TerminalDevice->RawFiFo.Tail;\r | |
1149 | }\r | |
1150 | \r | |
1151 | VOID\r | |
1152 | InitializeUnicodeFiFo (\r | |
1153 | IN TERMINAL_DEV *TerminalDevice\r | |
1154 | )\r | |
1155 | {\r | |
1156 | //\r | |
1157 | // Make the unicode fifo empty\r | |
1158 | //\r | |
1159 | TerminalDevice->UnicodeFiFo.Head = TerminalDevice->UnicodeFiFo.Tail;\r | |
1160 | }\r | |
1161 | \r | |
1162 | VOID\r | |
1163 | InitializeEfiKeyFiFo (\r | |
1164 | IN TERMINAL_DEV *TerminalDevice\r | |
1165 | )\r | |
1166 | {\r | |
1167 | //\r | |
1168 | // Make the efi key fifo empty\r | |
1169 | //\r | |
1170 | TerminalDevice->EfiKeyFiFo.Head = TerminalDevice->EfiKeyFiFo.Tail;\r | |
1171 | }\r | |
97a079ed A |
1172 | \r |
1173 | \r | |
1174 | /**\r | |
1175 | The user Entry Point for module Terminal. The user code starts with this function.\r | |
1176 | \r | |
1177 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
1178 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
1179 | \r | |
1180 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
1181 | @retval other Some error occurs when executing this entry point.\r | |
1182 | \r | |
1183 | **/\r | |
1184 | EFI_STATUS\r | |
1185 | EFIAPI\r | |
1186 | InitializeTerminal(\r | |
1187 | IN EFI_HANDLE ImageHandle,\r | |
1188 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1189 | )\r | |
1190 | {\r | |
1191 | EFI_STATUS Status;\r | |
1192 | \r | |
1193 | //\r | |
1194 | // Install driver model protocol(s).\r | |
1195 | //\r | |
1196 | Status = EfiLibInstallAllDriverProtocols (\r | |
1197 | ImageHandle,\r | |
1198 | SystemTable,\r | |
1199 | &gTerminalDriverBinding,\r | |
1200 | ImageHandle,\r | |
1201 | &gTerminalComponentName,\r | |
1202 | NULL,\r | |
1203 | NULL\r | |
1204 | );\r | |
1205 | ASSERT_EFI_ERROR (Status);\r | |
1206 | \r | |
1207 | \r | |
1208 | return Status;\r | |
1209 | }\r |