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8be0ba36 | 1 | /** @file\r |
2 | Function definitions for shell simple text in and out on top of file handles.\r | |
3 | \r | |
dcf9b428 | 4 | Copyright (c) 2013 Hewlett-Packard Development Company, L.P.\r |
733f138d | 5 | Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r |
8be0ba36 | 6 | This program and the accompanying materials\r |
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 | |
14 | **/\r | |
15 | \r | |
8be0ba36 | 16 | #include "Shell.h"\r |
17 | \r | |
18 | typedef struct {\r | |
19 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL SimpleTextIn;\r | |
20 | SHELL_FILE_HANDLE FileHandle;\r | |
21 | EFI_HANDLE TheHandle;\r | |
22 | } SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL;\r | |
23 | \r | |
24 | typedef struct {\r | |
25 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL SimpleTextOut;\r | |
26 | SHELL_FILE_HANDLE FileHandle;\r | |
27 | EFI_HANDLE TheHandle;\r | |
dcf9b428 | 28 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *OriginalSimpleTextOut;\r |
8be0ba36 | 29 | } SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL;\r |
30 | \r | |
31 | /**\r | |
32 | Event notification function for EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey event\r | |
33 | Signal the event if there is key available\r | |
34 | \r | |
35 | @param Event Indicates the event that invoke this function.\r | |
36 | @param Context Indicates the calling context.\r | |
37 | \r | |
38 | **/\r | |
39 | VOID\r | |
40 | EFIAPI\r | |
41 | ConInWaitForKey (\r | |
42 | IN EFI_EVENT Event,\r | |
43 | IN VOID *Context\r | |
44 | )\r | |
45 | {\r | |
46 | UINT64 Position;\r | |
47 | UINT64 Size;\r | |
48 | //\r | |
49 | // Someone is waiting on the keystroke event, if there's\r | |
50 | // a key pending, signal the event\r | |
51 | //\r | |
52 | // Context is the pointer to EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r | |
53 | //\r | |
54 | ShellInfoObject.NewEfiShellProtocol->GetFilePosition(((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)Context)->FileHandle, &Position);\r | |
55 | ShellInfoObject.NewEfiShellProtocol->GetFileSize (((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)Context)->FileHandle, &Size );\r | |
56 | if (Position < Size) {\r | |
57 | gBS->SignalEvent (Event);\r | |
58 | }\r | |
59 | }\r | |
60 | \r | |
61 | /**\r | |
62 | Reset function for the fake simple text input.\r | |
63 | \r | |
64 | @param[in] This A pointer to the SimpleTextIn structure.\r | |
65 | @param[in] ExtendedVerification TRUE for extra validation, FALSE otherwise.\r | |
66 | \r | |
67 | @retval EFI_SUCCESS The reset was successful.\r | |
68 | **/\r | |
69 | EFI_STATUS\r | |
70 | EFIAPI\r | |
71 | FileBasedSimpleTextInReset(\r | |
72 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
73 | IN BOOLEAN ExtendedVerification\r | |
74 | )\r | |
75 | {\r | |
76 | return (EFI_SUCCESS);\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | ReadKeyStroke function for the fake simple text input.\r | |
81 | \r | |
4ff7e37b ED |
82 | @param[in] This A pointer to the SimpleTextIn structure.\r |
83 | @param[in, out] Key A pointer to the Key structure to fill.\r | |
8be0ba36 | 84 | \r |
85 | @retval EFI_SUCCESS The read was successful.\r | |
86 | **/\r | |
87 | EFI_STATUS\r | |
88 | EFIAPI\r | |
89 | FileBasedSimpleTextInReadKeyStroke(\r | |
733f138d | 90 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r |
91 | IN OUT EFI_INPUT_KEY *Key\r | |
8be0ba36 | 92 | )\r |
93 | {\r | |
94 | UINTN Size;\r | |
95 | Size = sizeof(CHAR16);\r | |
96 | if (Key == NULL || This == NULL) {\r | |
97 | return (EFI_INVALID_PARAMETER);\r | |
98 | }\r | |
99 | Key->ScanCode = 0;\r | |
100 | return (ShellInfoObject.NewEfiShellProtocol->ReadFile(\r | |
101 | ((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->FileHandle,\r | |
102 | &Size,\r | |
103 | &Key->UnicodeChar));\r | |
104 | }\r | |
105 | \r | |
106 | /**\r | |
107 | Function to create a EFI_SIMPLE_TEXT_INPUT_PROTOCOL on top of a \r | |
108 | SHELL_FILE_HANDLE to support redirecting input from a file.\r | |
109 | \r | |
110 | @param[in] FileHandleToUse The pointer to the SHELL_FILE_HANDLE to use.\r | |
111 | @param[in] HandleLocation The pointer of a location to copy handle with protocol to.\r | |
112 | \r | |
113 | @retval NULL There was insufficient memory available.\r | |
114 | @return A pointer to the allocated protocol structure;\r | |
115 | **/\r | |
116 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL*\r | |
117 | EFIAPI\r | |
118 | CreateSimpleTextInOnFile(\r | |
119 | IN SHELL_FILE_HANDLE FileHandleToUse,\r | |
120 | IN EFI_HANDLE *HandleLocation\r | |
121 | )\r | |
122 | {\r | |
123 | SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *ProtocolToReturn;\r | |
124 | EFI_STATUS Status;\r | |
125 | \r | |
126 | if (HandleLocation == NULL || FileHandleToUse == NULL) {\r | |
127 | return (NULL);\r | |
128 | }\r | |
129 | \r | |
130 | ProtocolToReturn = AllocateZeroPool(sizeof(SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL));\r | |
131 | if (ProtocolToReturn == NULL) {\r | |
132 | return (NULL);\r | |
133 | }\r | |
134 | ProtocolToReturn->FileHandle = FileHandleToUse;\r | |
135 | ProtocolToReturn->SimpleTextIn.Reset = FileBasedSimpleTextInReset;\r | |
136 | ProtocolToReturn->SimpleTextIn.ReadKeyStroke = FileBasedSimpleTextInReadKeyStroke;\r | |
137 | \r | |
138 | Status = gBS->CreateEvent (\r | |
139 | EVT_NOTIFY_WAIT,\r | |
140 | TPL_NOTIFY,\r | |
141 | ConInWaitForKey,\r | |
142 | &ProtocolToReturn->SimpleTextIn,\r | |
143 | &ProtocolToReturn->SimpleTextIn.WaitForKey\r | |
144 | );\r | |
145 | \r | |
146 | if (EFI_ERROR(Status)) {\r | |
147 | FreePool(ProtocolToReturn);\r | |
148 | return (NULL);\r | |
149 | }\r | |
150 | ///@todo possibly also install SimpleTextInputEx on the handle at this point.\r | |
151 | Status = gBS->InstallProtocolInterface(\r | |
152 | &(ProtocolToReturn->TheHandle), \r | |
153 | &gEfiSimpleTextInProtocolGuid, \r | |
154 | EFI_NATIVE_INTERFACE, \r | |
155 | &(ProtocolToReturn->SimpleTextIn));\r | |
156 | if (!EFI_ERROR(Status)) {\r | |
157 | *HandleLocation = ProtocolToReturn->TheHandle;\r | |
158 | return ((EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)ProtocolToReturn);\r | |
159 | } else {\r | |
160 | FreePool(ProtocolToReturn);\r | |
161 | return (NULL);\r | |
162 | }\r | |
163 | }\r | |
164 | \r | |
165 | /**\r | |
166 | Function to close a EFI_SIMPLE_TEXT_INPUT_PROTOCOL on top of a \r | |
167 | SHELL_FILE_HANDLE to support redirecting input from a file.\r | |
168 | \r | |
169 | @param[in] SimpleTextIn The pointer to the SimpleTextIn to close.\r | |
170 | \r | |
171 | @retval EFI_SUCCESS The object was closed.\r | |
172 | **/\r | |
173 | EFI_STATUS\r | |
174 | EFIAPI\r | |
175 | CloseSimpleTextInOnFile(\r | |
176 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleTextIn\r | |
177 | )\r | |
178 | {\r | |
179 | EFI_STATUS Status;\r | |
180 | EFI_STATUS Status1;\r | |
181 | \r | |
182 | if (SimpleTextIn == NULL) {\r | |
183 | return (EFI_INVALID_PARAMETER);\r | |
184 | }\r | |
185 | \r | |
186 | Status = gBS->CloseEvent(((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)SimpleTextIn)->SimpleTextIn.WaitForKey);\r | |
187 | \r | |
188 | Status1 = gBS->UninstallProtocolInterface(\r | |
189 | ((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)SimpleTextIn)->TheHandle, \r | |
190 | &gEfiSimpleTextInProtocolGuid, \r | |
191 | &(((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)SimpleTextIn)->SimpleTextIn));\r | |
192 | \r | |
193 | FreePool(SimpleTextIn);\r | |
194 | if (!EFI_ERROR(Status)) {\r | |
195 | return (Status1);\r | |
196 | } else {\r | |
197 | return (Status);\r | |
198 | }\r | |
199 | }\r | |
200 | \r | |
201 | /**\r | |
202 | Reset the text output device hardware and optionaly run diagnostics.\r | |
203 | \r | |
204 | @param This pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL\r | |
205 | @param ExtendedVerification Indicates that a more extensive test may be performed\r | |
206 | \r | |
207 | @retval EFI_SUCCESS The text output device was reset.\r | |
208 | **/\r | |
209 | EFI_STATUS\r | |
210 | EFIAPI\r | |
211 | FileBasedSimpleTextOutReset (\r | |
212 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
213 | IN BOOLEAN ExtendedVerification\r | |
214 | )\r | |
215 | {\r | |
216 | return (EFI_SUCCESS);\r | |
217 | }\r | |
218 | \r | |
219 | /**\r | |
220 | Verifies that all characters in a Unicode string can be output to the\r | |
221 | target device.\r | |
222 | \r | |
223 | @param[in] This Protocol instance pointer.\r | |
224 | @param[in] WString The NULL-terminated Unicode string to be examined.\r | |
225 | \r | |
226 | @retval EFI_SUCCESS The device(s) are capable of rendering the output string.\r | |
227 | **/\r | |
228 | EFI_STATUS\r | |
229 | EFIAPI\r | |
230 | FileBasedSimpleTextOutTestString (\r | |
231 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
232 | IN CHAR16 *WString\r | |
233 | )\r | |
234 | {\r | |
235 | return (EFI_SUCCESS);\r | |
236 | }\r | |
237 | \r | |
238 | /**\r | |
239 | Returns information for an available text mode that the output device(s)\r | |
240 | supports.\r | |
241 | \r | |
242 | @param[in] This Protocol instance pointer.\r | |
243 | @param[in] ModeNumber The mode number to return information on.\r | |
244 | @param[out] Columns Upon return, the number of columns in the selected geometry\r | |
245 | @param[out] Rows Upon return, the number of rows in the selected geometry\r | |
246 | \r | |
247 | @retval EFI_UNSUPPORTED The mode number was not valid.\r | |
248 | **/\r | |
249 | EFI_STATUS\r | |
250 | EFIAPI\r | |
251 | FileBasedSimpleTextOutQueryMode (\r | |
252 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
253 | IN UINTN ModeNumber,\r | |
254 | OUT UINTN *Columns,\r | |
255 | OUT UINTN *Rows\r | |
256 | )\r | |
257 | {\r | |
6f05676d SQ |
258 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *PassThruProtocol;\r |
259 | \r | |
260 | PassThruProtocol = ((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *)This)->OriginalSimpleTextOut;\r | |
dcf9b428 CP |
261 | \r |
262 | // Pass the QueryMode call thru to the original SimpleTextOutProtocol\r | |
263 | return (PassThruProtocol->QueryMode(\r | |
264 | PassThruProtocol,\r | |
265 | ModeNumber,\r | |
266 | Columns,\r | |
267 | Rows));\r | |
8be0ba36 | 268 | }\r |
269 | \r | |
270 | /**\r | |
271 | Sets the output device(s) to a specified mode.\r | |
272 | \r | |
273 | @param[in] This Protocol instance pointer.\r | |
274 | @param[in] ModeNumber The mode number to set.\r | |
275 | \r | |
276 | @retval EFI_UNSUPPORTED The mode number was not valid.\r | |
277 | **/\r | |
278 | EFI_STATUS\r | |
279 | EFIAPI\r | |
280 | FileBasedSimpleTextOutSetMode (\r | |
281 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
282 | IN UINTN ModeNumber\r | |
283 | )\r | |
284 | {\r | |
285 | return (EFI_UNSUPPORTED);\r | |
286 | }\r | |
287 | \r | |
288 | /**\r | |
289 | Sets the background and foreground colors for the OutputString () and\r | |
290 | ClearScreen () functions.\r | |
291 | \r | |
292 | @param[in] This Protocol instance pointer.\r | |
293 | @param[in] Attribute The attribute to set. Bits 0..3 are the foreground color, and\r | |
294 | bits 4..6 are the background color. All other bits are undefined\r | |
295 | and must be zero. The valid Attributes are defined in this file.\r | |
296 | \r | |
297 | @retval EFI_SUCCESS The attribute was set.\r | |
298 | **/\r | |
299 | EFI_STATUS\r | |
300 | EFIAPI\r | |
301 | FileBasedSimpleTextOutSetAttribute (\r | |
302 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
303 | IN UINTN Attribute\r | |
304 | )\r | |
305 | {\r | |
306 | return (EFI_SUCCESS);\r | |
307 | }\r | |
308 | \r | |
309 | /**\r | |
310 | Clears the output device(s) display to the currently selected background\r | |
311 | color.\r | |
312 | \r | |
313 | @param[in] This Protocol instance pointer.\r | |
314 | \r | |
315 | @retval EFI_UNSUPPORTED The output device is not in a valid text mode.\r | |
316 | **/\r | |
317 | EFI_STATUS\r | |
318 | EFIAPI\r | |
319 | FileBasedSimpleTextOutClearScreen (\r | |
320 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This\r | |
321 | )\r | |
322 | {\r | |
323 | return (EFI_SUCCESS);\r | |
324 | }\r | |
325 | \r | |
326 | /**\r | |
327 | Sets the current coordinates of the cursor position\r | |
328 | \r | |
329 | @param[in] This Protocol instance pointer.\r | |
330 | @param[in] Column Column to put the cursor in. Must be between zero and Column returned from QueryMode\r | |
331 | @param[in] Row Row to put the cursor in. Must be between zero and Row returned from QueryMode\r | |
332 | \r | |
333 | @retval EFI_SUCCESS The operation completed successfully.\r | |
334 | **/\r | |
335 | EFI_STATUS\r | |
336 | EFIAPI\r | |
337 | FileBasedSimpleTextOutSetCursorPosition (\r | |
338 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
339 | IN UINTN Column,\r | |
340 | IN UINTN Row\r | |
341 | )\r | |
342 | {\r | |
343 | return (EFI_SUCCESS);\r | |
344 | }\r | |
345 | \r | |
346 | /**\r | |
347 | Makes the cursor visible or invisible\r | |
348 | \r | |
349 | @param[in] This Protocol instance pointer.\r | |
350 | @param[in] Visible If TRUE, the cursor is set to be visible. If FALSE, the cursor is\r | |
351 | set to be invisible.\r | |
352 | \r | |
353 | @retval EFI_SUCCESS The operation completed successfully.\r | |
354 | **/\r | |
355 | EFI_STATUS\r | |
356 | EFIAPI\r | |
357 | FileBasedSimpleTextOutEnableCursor (\r | |
358 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
359 | IN BOOLEAN Visible\r | |
360 | )\r | |
361 | {\r | |
362 | return (EFI_SUCCESS);\r | |
363 | }\r | |
364 | \r | |
365 | /**\r | |
366 | Write a Unicode string to the output device.\r | |
367 | \r | |
368 | @param[in] This Protocol instance pointer.\r | |
369 | @param[in] WString The NULL-terminated Unicode string to be displayed on the output\r | |
370 | device(s). All output devices must also support the Unicode\r | |
371 | drawing defined in this file.\r | |
372 | @retval EFI_SUCCESS The string was output to the device.\r | |
373 | @retval EFI_DEVICE_ERROR The device reported an error while attempting to output\r | |
374 | the text.\r | |
375 | @retval EFI_UNSUPPORTED The output device's mode is not currently in a\r | |
376 | defined text mode.\r | |
377 | @retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the\r | |
378 | characters in the Unicode string could not be\r | |
379 | rendered and were skipped.\r | |
380 | **/\r | |
381 | EFI_STATUS\r | |
382 | EFIAPI\r | |
383 | FileBasedSimpleTextOutOutputString (\r | |
384 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,\r | |
385 | IN CHAR16 *WString\r | |
386 | )\r | |
387 | {\r | |
388 | UINTN Size;\r | |
389 | Size = StrLen(WString) * sizeof(CHAR16);\r | |
390 | return (ShellInfoObject.NewEfiShellProtocol->WriteFile(\r | |
391 | ((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *)This)->FileHandle,\r | |
392 | &Size,\r | |
393 | WString));\r | |
394 | }\r | |
395 | \r | |
396 | /**\r | |
397 | Function to create a EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on top of a \r | |
398 | SHELL_FILE_HANDLE to support redirecting output from a file.\r | |
399 | \r | |
dcf9b428 CP |
400 | @param[in] FileHandleToUse The pointer to the SHELL_FILE_HANDLE to use.\r |
401 | @param[in] HandleLocation The pointer of a location to copy handle with protocol to.\r | |
402 | @param[in] OriginalProtocol The pointer to the original output protocol for pass thru of functions.\r | |
8be0ba36 | 403 | \r |
404 | @retval NULL There was insufficient memory available.\r | |
405 | @return A pointer to the allocated protocol structure;\r | |
406 | **/\r | |
407 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*\r | |
408 | EFIAPI\r | |
409 | CreateSimpleTextOutOnFile(\r | |
dcf9b428 CP |
410 | IN SHELL_FILE_HANDLE FileHandleToUse,\r |
411 | IN EFI_HANDLE *HandleLocation,\r | |
412 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *OriginalProtocol\r | |
8be0ba36 | 413 | )\r |
414 | {\r | |
415 | SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ProtocolToReturn;\r | |
416 | EFI_STATUS Status;\r | |
417 | \r | |
418 | if (HandleLocation == NULL || FileHandleToUse == NULL) {\r | |
419 | return (NULL);\r | |
420 | }\r | |
421 | \r | |
422 | ProtocolToReturn = AllocateZeroPool(sizeof(SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL));\r | |
423 | if (ProtocolToReturn == NULL) {\r | |
424 | return (NULL);\r | |
425 | }\r | |
426 | ProtocolToReturn->FileHandle = FileHandleToUse;\r | |
dcf9b428 | 427 | ProtocolToReturn->OriginalSimpleTextOut = OriginalProtocol;\r |
8be0ba36 | 428 | ProtocolToReturn->SimpleTextOut.Reset = FileBasedSimpleTextOutReset;\r |
429 | ProtocolToReturn->SimpleTextOut.TestString = FileBasedSimpleTextOutTestString;\r | |
430 | ProtocolToReturn->SimpleTextOut.QueryMode = FileBasedSimpleTextOutQueryMode;\r | |
431 | ProtocolToReturn->SimpleTextOut.SetMode = FileBasedSimpleTextOutSetMode;\r | |
432 | ProtocolToReturn->SimpleTextOut.SetAttribute = FileBasedSimpleTextOutSetAttribute;\r | |
433 | ProtocolToReturn->SimpleTextOut.ClearScreen = FileBasedSimpleTextOutClearScreen;\r | |
434 | ProtocolToReturn->SimpleTextOut.SetCursorPosition = FileBasedSimpleTextOutSetCursorPosition;\r | |
435 | ProtocolToReturn->SimpleTextOut.EnableCursor = FileBasedSimpleTextOutEnableCursor;\r | |
436 | ProtocolToReturn->SimpleTextOut.OutputString = FileBasedSimpleTextOutOutputString;\r | |
437 | ProtocolToReturn->SimpleTextOut.Mode = AllocateZeroPool(sizeof(EFI_SIMPLE_TEXT_OUTPUT_MODE));\r | |
438 | if (ProtocolToReturn->SimpleTextOut.Mode == NULL) {\r | |
439 | FreePool(ProtocolToReturn);\r | |
440 | return (NULL);\r | |
441 | }\r | |
dcf9b428 CP |
442 | ProtocolToReturn->SimpleTextOut.Mode->MaxMode = OriginalProtocol->Mode->MaxMode;\r |
443 | ProtocolToReturn->SimpleTextOut.Mode->Mode = OriginalProtocol->Mode->Mode;\r | |
444 | ProtocolToReturn->SimpleTextOut.Mode->Attribute = OriginalProtocol->Mode->Attribute;\r | |
445 | ProtocolToReturn->SimpleTextOut.Mode->CursorColumn = OriginalProtocol->Mode->CursorColumn;\r | |
446 | ProtocolToReturn->SimpleTextOut.Mode->CursorRow = OriginalProtocol->Mode->CursorRow;\r | |
447 | ProtocolToReturn->SimpleTextOut.Mode->CursorVisible = OriginalProtocol->Mode->CursorVisible;\r | |
8be0ba36 | 448 | \r |
449 | Status = gBS->InstallProtocolInterface(\r | |
450 | &(ProtocolToReturn->TheHandle), \r | |
451 | &gEfiSimpleTextOutProtocolGuid, \r | |
452 | EFI_NATIVE_INTERFACE, \r | |
453 | &(ProtocolToReturn->SimpleTextOut));\r | |
454 | if (!EFI_ERROR(Status)) {\r | |
455 | *HandleLocation = ProtocolToReturn->TheHandle;\r | |
456 | return ((EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)ProtocolToReturn);\r | |
457 | } else {\r | |
458 | FreePool(ProtocolToReturn);\r | |
459 | return (NULL);\r | |
460 | }\r | |
461 | }\r | |
462 | \r | |
463 | /**\r | |
464 | Function to close a EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on top of a \r | |
465 | SHELL_FILE_HANDLE to support redirecting output from a file.\r | |
466 | \r | |
733f138d | 467 | @param[in] SimpleTextOut The pointer to the SimpleTextOUT to close.\r |
8be0ba36 | 468 | \r |
469 | @retval EFI_SUCCESS The object was closed.\r | |
470 | **/\r | |
471 | EFI_STATUS\r | |
472 | EFIAPI\r | |
473 | CloseSimpleTextOutOnFile(\r | |
733f138d | 474 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut\r |
8be0ba36 | 475 | )\r |
476 | {\r | |
477 | EFI_STATUS Status;\r | |
478 | if (SimpleTextOut == NULL) {\r | |
479 | return (EFI_INVALID_PARAMETER);\r | |
480 | }\r | |
481 | Status = gBS->UninstallProtocolInterface(\r | |
482 | ((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)SimpleTextOut)->TheHandle, \r | |
483 | &gEfiSimpleTextOutProtocolGuid, \r | |
484 | &(((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)SimpleTextOut)->SimpleTextOut));\r | |
485 | FreePool(SimpleTextOut);\r | |
486 | return (Status);\r | |
487 | }\r |