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bade7f42 PG |
1 | /** @file\r |
2 | SSDT Serial Port Fixup Library.\r | |
3 | \r | |
42c0019f | 4 | Copyright (c) 2019 - 2021, Arm Limited. All rights reserved.<BR>\r |
bade7f42 PG |
5 | \r |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7 | \r | |
8 | @par Reference(s):\r | |
9 | - Arm Server Base Boot Requirements (SBBR), s4.2.1.8 "SPCR".\r | |
10 | - Microsoft Debug Port Table 2 (DBG2) Specification - December 10, 2015.\r | |
11 | **/\r | |
12 | \r | |
13 | #include <IndustryStandard/DebugPort2Table.h>\r | |
14 | #include <Library/AcpiLib.h>\r | |
15 | #include <Library/BaseLib.h>\r | |
16 | #include <Library/BaseMemoryLib.h>\r | |
17 | #include <Library/DebugLib.h>\r | |
18 | #include <Library/MemoryAllocationLib.h>\r | |
bade7f42 PG |
19 | #include <Protocol/AcpiTable.h>\r |
20 | \r | |
21 | // Module specific include files.\r | |
22 | #include <AcpiTableGenerator.h>\r | |
23 | #include <ConfigurationManagerObject.h>\r | |
24 | #include <ConfigurationManagerHelper.h>\r | |
0875443f | 25 | #include <Library/AcpiHelperLib.h>\r |
bade7f42 | 26 | #include <Library/AmlLib/AmlLib.h>\r |
bade7f42 PG |
27 | #include <Protocol/ConfigurationManagerProtocol.h>\r |
28 | \r | |
29 | /** C array containing the compiled AML template.\r | |
30 | This symbol is defined in the auto generated C file\r | |
31 | containing the AML bytecode array.\r | |
32 | */\r | |
33 | extern CHAR8 ssdtserialporttemplate_aml_code[];\r | |
34 | \r | |
35 | /** UART address range length.\r | |
36 | */\r | |
37 | #define MIN_UART_ADDRESS_LENGTH 0x1000U\r | |
38 | \r | |
39 | /** Validate the Serial Port Information.\r | |
40 | \r | |
41 | @param [in] SerialPortInfoTable Table of CM_ARM_SERIAL_PORT_INFO.\r | |
42 | @param [in] SerialPortCount Count of SerialPort in the table.\r | |
43 | \r | |
44 | @retval EFI_SUCCESS Success.\r | |
45 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
46 | **/\r | |
47 | EFI_STATUS\r | |
48 | EFIAPI\r | |
49 | ValidateSerialPortInfo (\r | |
50 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfoTable,\r | |
51 | IN UINT32 SerialPortCount\r | |
52 | )\r | |
53 | {\r | |
54 | UINT32 Index;\r | |
55 | CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo;\r | |
56 | \r | |
57 | if ((SerialPortInfoTable == NULL) ||\r | |
58 | (SerialPortCount == 0)) {\r | |
59 | ASSERT (0);\r | |
60 | return EFI_INVALID_PARAMETER;\r | |
61 | }\r | |
62 | \r | |
63 | for (Index = 0; Index < SerialPortCount; Index++) {\r | |
64 | SerialPortInfo = &SerialPortInfoTable[Index];\r | |
65 | ASSERT (SerialPortInfo != NULL);\r | |
66 | \r | |
67 | if ((SerialPortInfo == NULL ) ||\r | |
68 | (SerialPortInfo->BaseAddress == 0)) {\r | |
69 | DEBUG ((\r | |
70 | DEBUG_ERROR,\r | |
71 | "ERROR: UART port base address is invalid. BaseAddress = 0x%llx\n",\r | |
72 | SerialPortInfo->BaseAddress\r | |
73 | ));\r | |
74 | return EFI_INVALID_PARAMETER;\r | |
75 | }\r | |
76 | \r | |
77 | if ((SerialPortInfo->PortSubtype !=\r | |
78 | EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_PL011_UART) &&\r | |
79 | (SerialPortInfo->PortSubtype !=\r | |
80 | EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART_2X) &&\r | |
81 | (SerialPortInfo->PortSubtype !=\r | |
82 | EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART) &&\r | |
83 | (SerialPortInfo->PortSubtype !=\r | |
84 | EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_DCC) &&\r | |
85 | (SerialPortInfo->PortSubtype !=\r | |
86 | EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_FULL_16550)) {\r | |
87 | DEBUG ((\r | |
88 | DEBUG_ERROR,\r | |
89 | "ERROR: UART port subtype is invalid."\r | |
90 | " UART Base = 0x%llx, PortSubtype = 0x%x\n",\r | |
91 | SerialPortInfo->BaseAddress,\r | |
92 | SerialPortInfo->PortSubtype\r | |
93 | ));\r | |
94 | return EFI_INVALID_PARAMETER;\r | |
95 | }\r | |
96 | \r | |
97 | DEBUG ((DEBUG_INFO, "UART Configuration:\n"));\r | |
98 | DEBUG ((\r | |
99 | DEBUG_INFO,\r | |
100 | " UART Base = 0x%llx\n", SerialPortInfo->BaseAddress\r | |
101 | ));\r | |
102 | DEBUG ((\r | |
103 | DEBUG_INFO,\r | |
104 | " Length = 0x%llx\n",\r | |
105 | SerialPortInfo->BaseAddressLength\r | |
106 | ));\r | |
107 | DEBUG ((DEBUG_INFO, " Clock = %lu\n", SerialPortInfo->Clock));\r | |
108 | DEBUG ((DEBUG_INFO, " BaudRate = %llu\n", SerialPortInfo->BaudRate));\r | |
109 | DEBUG ((DEBUG_INFO, " Interrupt = %lu\n", SerialPortInfo->Interrupt));\r | |
110 | } // for\r | |
111 | \r | |
112 | return EFI_SUCCESS;\r | |
113 | }\r | |
114 | \r | |
115 | /** Fixup the Serial Port Ids (_UID, _HID, _CID).\r | |
116 | \r | |
117 | @param [in] RootNodeHandle Pointer to the root of an AML tree.\r | |
118 | @param [in] Uid UID for the Serial Port.\r | |
119 | @param [in] SerialPortInfo Pointer to a Serial Port Information\r | |
120 | structure.\r | |
121 | Get the Serial Port Information from there.\r | |
122 | \r | |
123 | @retval EFI_SUCCESS The function completed successfully.\r | |
124 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
125 | @retval EFI_NOT_FOUND Could not find information.\r | |
126 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r | |
127 | **/\r | |
128 | STATIC\r | |
129 | EFI_STATUS\r | |
130 | EFIAPI\r | |
131 | FixupIds (\r | |
e3c7db50 SM |
132 | IN AML_ROOT_NODE_HANDLE RootNodeHandle,\r |
133 | IN CONST UINT64 Uid,\r | |
134 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo\r | |
bade7f42 PG |
135 | )\r |
136 | {\r | |
137 | EFI_STATUS Status;\r | |
138 | AML_OBJECT_NODE_HANDLE NameOpIdNode;\r | |
139 | CONST CHAR8 * HidString;\r | |
140 | CONST CHAR8 * CidString;\r | |
42c0019f | 141 | CONST CHAR8 * NonBsaHid;\r |
bade7f42 PG |
142 | \r |
143 | // Get the _CID and _HID value to write.\r | |
144 | switch (SerialPortInfo->PortSubtype) {\r | |
145 | case EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_FULL_16550:\r | |
146 | {\r | |
42c0019f JG |
147 | // If there is a non-BSA compliant HID, use that.\r |
148 | NonBsaHid = (CONST CHAR8*)PcdGetPtr (PcdNonBsaCompliant16550SerialHid);\r | |
149 | if ((NonBsaHid != NULL) && (AsciiStrLen (NonBsaHid) != 0)) {\r | |
16136f21 JG |
150 | if (!(IsValidPnpId (NonBsaHid) || IsValidAcpiId (NonBsaHid))) {\r |
151 | return EFI_INVALID_PARAMETER;\r | |
152 | }\r | |
153 | \r | |
42c0019f JG |
154 | HidString = NonBsaHid;\r |
155 | CidString = "";\r | |
156 | } else {\r | |
157 | HidString = "PNP0501";\r | |
158 | CidString = "PNP0500";\r | |
159 | }\r | |
bade7f42 PG |
160 | break;\r |
161 | }\r | |
162 | case EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_PL011_UART:\r | |
163 | {\r | |
164 | HidString = "ARMH0011";\r | |
165 | CidString = "ARMHB000";\r | |
166 | break;\r | |
167 | }\r | |
168 | case EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART:\r | |
169 | case EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART_2X:\r | |
170 | {\r | |
171 | HidString = "ARMH0011";\r | |
172 | CidString = "";\r | |
173 | break;\r | |
174 | }\r | |
175 | default:\r | |
176 | {\r | |
177 | return EFI_INVALID_PARAMETER;\r | |
178 | }\r | |
179 | } // switch\r | |
180 | \r | |
181 | // Get the _UID NameOp object defined by the "Name ()" statement,\r | |
182 | // and update its value.\r | |
183 | Status = AmlFindNode (\r | |
184 | RootNodeHandle,\r | |
185 | "\\_SB_.COM0._UID",\r | |
186 | &NameOpIdNode\r | |
187 | );\r | |
188 | if (EFI_ERROR (Status)) {\r | |
189 | return Status;\r | |
190 | }\r | |
191 | \r | |
192 | Status = AmlNameOpUpdateInteger (NameOpIdNode, (UINT64)Uid);\r | |
193 | if (EFI_ERROR (Status)) {\r | |
194 | return Status;\r | |
195 | }\r | |
196 | \r | |
197 | // Get the _HID NameOp object defined by the "Name ()" statement,\r | |
198 | // and update its value.\r | |
199 | Status = AmlFindNode (\r | |
200 | RootNodeHandle,\r | |
201 | "\\_SB_.COM0._HID",\r | |
202 | &NameOpIdNode\r | |
203 | );\r | |
204 | if (EFI_ERROR (Status)) {\r | |
205 | return Status;\r | |
206 | }\r | |
207 | \r | |
208 | Status = AmlNameOpUpdateString (NameOpIdNode, HidString);\r | |
209 | if (EFI_ERROR (Status)) {\r | |
210 | return Status;\r | |
211 | }\r | |
212 | \r | |
213 | // Get the _CID NameOp object defined by the "Name ()" statement,\r | |
214 | // and update its value.\r | |
215 | Status = AmlFindNode (\r | |
216 | RootNodeHandle,\r | |
217 | "\\_SB_.COM0._CID",\r | |
218 | &NameOpIdNode\r | |
219 | );\r | |
220 | if (EFI_ERROR (Status)) {\r | |
221 | return Status;\r | |
222 | }\r | |
223 | \r | |
224 | // If we have a CID then update a _CID node else delete the node.\r | |
225 | if (AsciiStrLen (CidString) != 0) {\r | |
226 | Status = AmlNameOpUpdateString (NameOpIdNode, CidString);\r | |
227 | } else {\r | |
228 | // First detach the node from the tree.\r | |
229 | Status = AmlDetachNode (NameOpIdNode);\r | |
230 | if (EFI_ERROR (Status)) {\r | |
231 | return Status;\r | |
232 | }\r | |
233 | \r | |
234 | // Delete the detached node.\r | |
235 | Status = AmlDeleteTree (NameOpIdNode);\r | |
236 | }\r | |
237 | \r | |
238 | return Status;\r | |
239 | }\r | |
240 | \r | |
241 | /** Fixup the Serial Port _CRS values (BaseAddress, ...).\r | |
242 | \r | |
243 | @param [in] RootNodeHandle Pointer to the root of an AML tree.\r | |
244 | @param [in] SerialPortInfo Pointer to a Serial Port Information\r | |
245 | structure.\r | |
246 | Get the Serial Port Information from there.\r | |
247 | \r | |
248 | @retval EFI_SUCCESS The function completed successfully.\r | |
249 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
250 | @retval EFI_NOT_FOUND Could not find information.\r | |
251 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r | |
252 | **/\r | |
253 | STATIC\r | |
254 | EFI_STATUS\r | |
255 | EFIAPI\r | |
256 | FixupCrs (\r | |
e3c7db50 SM |
257 | IN AML_ROOT_NODE_HANDLE RootNodeHandle,\r |
258 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo\r | |
bade7f42 PG |
259 | )\r |
260 | {\r | |
261 | EFI_STATUS Status;\r | |
262 | AML_OBJECT_NODE_HANDLE NameOpCrsNode;\r | |
263 | AML_DATA_NODE_HANDLE QWordRdNode;\r | |
264 | AML_DATA_NODE_HANDLE InterruptRdNode;\r | |
265 | \r | |
266 | // Get the "_CRS" object defined by the "Name ()" statement.\r | |
267 | Status = AmlFindNode (\r | |
268 | RootNodeHandle,\r | |
269 | "\\_SB_.COM0._CRS",\r | |
270 | &NameOpCrsNode\r | |
271 | );\r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | return Status;\r | |
274 | }\r | |
275 | \r | |
276 | // Get the first Rd node in the "_CRS" object.\r | |
691c5f77 | 277 | Status = AmlNameOpGetFirstRdNode (NameOpCrsNode, &QWordRdNode);\r |
bade7f42 PG |
278 | if (EFI_ERROR (Status)) {\r |
279 | return Status;\r | |
280 | }\r | |
281 | \r | |
282 | if (QWordRdNode == NULL) {\r | |
283 | return EFI_INVALID_PARAMETER;\r | |
284 | }\r | |
285 | \r | |
286 | // Update the Serial Port base address and length.\r | |
287 | Status = AmlUpdateRdQWord (\r | |
288 | QWordRdNode,\r | |
289 | SerialPortInfo->BaseAddress,\r | |
290 | ((SerialPortInfo->BaseAddressLength < MIN_UART_ADDRESS_LENGTH) ?\r | |
291 | MIN_UART_ADDRESS_LENGTH: SerialPortInfo->BaseAddressLength)\r | |
292 | );\r | |
293 | if (EFI_ERROR (Status)) {\r | |
294 | return Status;\r | |
295 | }\r | |
296 | \r | |
297 | // Get the Interrupt node.\r | |
298 | // It is the second Resource Data element in the NameOpCrsNode's\r | |
299 | // variable list of arguments.\r | |
691c5f77 | 300 | Status = AmlNameOpGetNextRdNode (QWordRdNode, &InterruptRdNode);\r |
bade7f42 PG |
301 | if (EFI_ERROR (Status)) {\r |
302 | return Status;\r | |
303 | }\r | |
304 | \r | |
305 | if (InterruptRdNode == NULL) {\r | |
306 | return EFI_INVALID_PARAMETER;\r | |
307 | }\r | |
308 | \r | |
309 | // Update the interrupt number.\r | |
310 | return AmlUpdateRdInterrupt (InterruptRdNode, SerialPortInfo->Interrupt);\r | |
311 | }\r | |
312 | \r | |
313 | /** Fixup the Serial Port device name.\r | |
314 | \r | |
315 | @param [in] RootNodeHandle Pointer to the root of an AML tree.\r | |
316 | @param [in] SerialPortInfo Pointer to a Serial Port Information\r | |
317 | structure.\r | |
318 | Get the Serial Port Information from there.\r | |
319 | @param [in] Name The Name to give to the Device.\r | |
320 | Must be a NULL-terminated ASL NameString\r | |
321 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
322 | \r | |
323 | @retval EFI_SUCCESS The function completed successfully.\r | |
324 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
325 | @retval EFI_NOT_FOUND Could not find information.\r | |
326 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r | |
327 | **/\r | |
328 | STATIC\r | |
329 | EFI_STATUS\r | |
330 | EFIAPI\r | |
331 | FixupName (\r | |
e3c7db50 SM |
332 | IN AML_ROOT_NODE_HANDLE RootNodeHandle,\r |
333 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo,\r | |
334 | IN CONST CHAR8 * Name\r | |
bade7f42 PG |
335 | )\r |
336 | {\r | |
337 | EFI_STATUS Status;\r | |
338 | AML_OBJECT_NODE_HANDLE DeviceNode;\r | |
339 | \r | |
340 | // Get the COM0 variable defined by the "Device ()" statement.\r | |
341 | Status = AmlFindNode (RootNodeHandle, "\\_SB_.COM0", &DeviceNode);\r | |
342 | if (EFI_ERROR (Status)) {\r | |
343 | return Status;\r | |
344 | }\r | |
345 | \r | |
346 | // Update the Device's name.\r | |
347 | return AmlDeviceOpUpdateName (DeviceNode, (CHAR8*)Name);\r | |
348 | }\r | |
349 | \r | |
350 | /** Fixup the Serial Port Information in the AML tree.\r | |
351 | \r | |
352 | For each template value:\r | |
353 | - find the node to update;\r | |
354 | - update the value.\r | |
355 | \r | |
356 | @param [in] RootNodeHandle Pointer to the root of the AML tree.\r | |
357 | @param [in] SerialPortInfo Pointer to a Serial Port Information\r | |
358 | structure.\r | |
359 | Get the Serial Port Information from there.\r | |
360 | @param [in] Name The Name to give to the Device.\r | |
361 | Must be a NULL-terminated ASL NameString\r | |
362 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
363 | @param [in] Uid UID for the Serial Port.\r | |
364 | @param [out] Table If success, contains the serialized\r | |
365 | SSDT table.\r | |
366 | \r | |
367 | @retval EFI_SUCCESS The function completed successfully.\r | |
368 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
369 | @retval EFI_NOT_FOUND Could not find information.\r | |
370 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r | |
371 | **/\r | |
372 | STATIC\r | |
373 | EFI_STATUS\r | |
374 | EFIAPI\r | |
375 | FixupSerialPortInfo (\r | |
e3c7db50 | 376 | IN AML_ROOT_NODE_HANDLE RootNodeHandle,\r |
bade7f42 PG |
377 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo,\r |
378 | IN CONST CHAR8 * Name,\r | |
379 | IN CONST UINT64 Uid,\r | |
380 | OUT EFI_ACPI_DESCRIPTION_HEADER ** Table\r | |
381 | )\r | |
382 | {\r | |
383 | EFI_STATUS Status;\r | |
384 | \r | |
385 | ASSERT (RootNodeHandle != NULL);\r | |
386 | ASSERT (SerialPortInfo != NULL);\r | |
387 | ASSERT (Name != NULL);\r | |
388 | ASSERT (Table != NULL);\r | |
389 | \r | |
390 | // Fixup the _UID, _HID and _CID values.\r | |
391 | Status = FixupIds (RootNodeHandle, Uid, SerialPortInfo);\r | |
392 | if (EFI_ERROR (Status)) {\r | |
393 | return Status;\r | |
394 | }\r | |
395 | \r | |
396 | // Fixup the _CRS values.\r | |
397 | Status = FixupCrs (RootNodeHandle, SerialPortInfo);\r | |
398 | if (EFI_ERROR (Status)) {\r | |
399 | return Status;\r | |
400 | }\r | |
401 | \r | |
402 | // Fixup the serial-port name.\r | |
403 | // This MUST be done at the end, otherwise AML paths won't be valid anymore.\r | |
404 | return FixupName (RootNodeHandle, SerialPortInfo, Name);\r | |
405 | }\r | |
406 | \r | |
407 | /** Free an SSDT table previously created by\r | |
408 | the BuildSsdtSerialTable function.\r | |
409 | \r | |
410 | @param [in] Table Pointer to a SSDT table allocated by\r | |
411 | the BuildSsdtSerialTable function.\r | |
412 | \r | |
413 | @retval EFI_SUCCESS Success.\r | |
414 | **/\r | |
415 | EFI_STATUS\r | |
416 | EFIAPI\r | |
417 | FreeSsdtSerialPortTable (\r | |
418 | IN EFI_ACPI_DESCRIPTION_HEADER * Table\r | |
419 | )\r | |
420 | {\r | |
421 | ASSERT (Table != NULL);\r | |
422 | FreePool (Table);\r | |
423 | return EFI_SUCCESS;\r | |
424 | }\r | |
425 | \r | |
426 | /** Build a SSDT table describing the input serial port.\r | |
427 | \r | |
428 | The table created by this function must be freed by FreeSsdtSerialTable.\r | |
429 | \r | |
430 | @param [in] AcpiTableInfo Pointer to the ACPI table information.\r | |
431 | @param [in] SerialPortInfo Serial port to describe in the SSDT table.\r | |
432 | @param [in] Name The Name to give to the Device.\r | |
433 | Must be a NULL-terminated ASL NameString\r | |
434 | e.g.: "DEV0", "DV15.DEV0", etc.\r | |
435 | @param [in] Uid UID for the Serial Port.\r | |
436 | @param [out] Table If success, pointer to the created SSDT table.\r | |
437 | \r | |
438 | @retval EFI_SUCCESS Table generated successfully.\r | |
439 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
440 | @retval EFI_NOT_FOUND Could not find information.\r | |
441 | @retval EFI_OUT_OF_RESOURCES Could not allocate memory.\r | |
442 | **/\r | |
443 | EFI_STATUS\r | |
444 | EFIAPI\r | |
445 | BuildSsdtSerialPortTable (\r | |
446 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * AcpiTableInfo,\r | |
447 | IN CONST CM_ARM_SERIAL_PORT_INFO * SerialPortInfo,\r | |
448 | IN CONST CHAR8 * Name,\r | |
449 | IN CONST UINT64 Uid,\r | |
450 | OUT EFI_ACPI_DESCRIPTION_HEADER ** Table\r | |
451 | )\r | |
452 | {\r | |
453 | EFI_STATUS Status;\r | |
454 | EFI_STATUS Status1;\r | |
455 | AML_ROOT_NODE_HANDLE RootNodeHandle;\r | |
456 | \r | |
457 | ASSERT (AcpiTableInfo != NULL);\r | |
458 | ASSERT (SerialPortInfo != NULL);\r | |
459 | ASSERT (Name != NULL);\r | |
460 | ASSERT (Table != NULL);\r | |
461 | \r | |
462 | // Validate the Serial Port Info.\r | |
463 | Status = ValidateSerialPortInfo (SerialPortInfo, 1);\r | |
464 | if (EFI_ERROR (Status)) {\r | |
465 | return Status;\r | |
466 | }\r | |
467 | \r | |
468 | // Parse the SSDT Serial Port Template.\r | |
469 | Status = AmlParseDefinitionBlock (\r | |
470 | (EFI_ACPI_DESCRIPTION_HEADER*)ssdtserialporttemplate_aml_code,\r | |
471 | &RootNodeHandle\r | |
472 | );\r | |
473 | if (EFI_ERROR (Status)) {\r | |
474 | DEBUG ((\r | |
475 | DEBUG_ERROR,\r | |
476 | "ERROR: SSDT-SERIAL-PORT-FIXUP:"\r | |
477 | " Failed to parse SSDT Serial Port Template. Status = %r\n",\r | |
478 | Status\r | |
479 | ));\r | |
480 | return Status;\r | |
481 | }\r | |
482 | \r | |
483 | // Fixup the template values.\r | |
484 | Status = FixupSerialPortInfo (\r | |
485 | RootNodeHandle,\r | |
486 | SerialPortInfo,\r | |
487 | Name,\r | |
488 | Uid,\r | |
489 | Table\r | |
490 | );\r | |
491 | if (EFI_ERROR (Status)) {\r | |
492 | DEBUG ((\r | |
493 | DEBUG_ERROR,\r | |
494 | "ERROR: SSDT-SERIAL-PORT-FIXUP: Failed to fixup SSDT Serial Port Table."\r | |
495 | " Status = %r\n",\r | |
496 | Status\r | |
497 | ));\r | |
498 | goto exit_handler;\r | |
499 | }\r | |
500 | \r | |
501 | // Serialize the tree.\r | |
502 | Status = AmlSerializeDefinitionBlock (\r | |
503 | RootNodeHandle,\r | |
504 | Table\r | |
505 | );\r | |
506 | if (EFI_ERROR (Status)) {\r | |
507 | DEBUG ((\r | |
508 | DEBUG_ERROR,\r | |
509 | "ERROR: SSDT-SERIAL-PORT-FIXUP: Failed to Serialize SSDT Table Data."\r | |
510 | " Status = %r\n",\r | |
511 | Status\r | |
512 | ));\r | |
513 | }\r | |
514 | \r | |
515 | exit_handler:\r | |
516 | // Cleanup\r | |
517 | if (RootNodeHandle != NULL) {\r | |
518 | Status1 = AmlDeleteTree (RootNodeHandle);\r | |
519 | if (EFI_ERROR (Status1)) {\r | |
520 | DEBUG ((\r | |
521 | DEBUG_ERROR,\r | |
522 | "ERROR: SSDT-SERIAL-PORT-FIXUP: Failed to cleanup AML tree."\r | |
523 | " Status = %r\n",\r | |
524 | Status1\r | |
525 | ));\r | |
526 | // If Status was success but we failed to delete the AML Tree\r | |
527 | // return Status1 else return the original error code, i.e. Status.\r | |
528 | if (!EFI_ERROR (Status)) {\r | |
529 | return Status1;\r | |
530 | }\r | |
531 | }\r | |
532 | }\r | |
533 | \r | |
534 | return Status;\r | |
535 | }\r |