14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#include "acpi.h"
120#include "acdebug.h"
121#include "acnamesp.h"
122#include "actables.h"
123
124#if (defined ACPI_DEBUGGER || defined ACPI_DISASSEMBLER)
125
126#define _COMPONENT ACPI_CA_DEBUGGER
127 ACPI_MODULE_NAME ("dbfileio")
128
129
130/*
131 * NOTE: this is here for lack of a better place. It is used in all
132 * flavors of the debugger, need LCD file
133 */
134#ifdef ACPI_APPLICATION
135#include <stdio.h>
136FILE *AcpiGbl_DebugFile = NULL;
137#endif
138
139
140#ifdef ACPI_DEBUGGER
141/*******************************************************************************
142 *
143 * FUNCTION: AcpiDbCloseDebugFile
144 *
145 * PARAMETERS: None
146 *
147 * RETURN: Status
148 *
149 * DESCRIPTION: If open, close the current debug output file
150 *
151 ******************************************************************************/
152
153void
154AcpiDbCloseDebugFile (
155 void)
156{
157
158#ifdef ACPI_APPLICATION
159
160 if (AcpiGbl_DebugFile)
161 {
162 fclose (AcpiGbl_DebugFile);
163 AcpiGbl_DebugFile = NULL;
164 AcpiGbl_DbOutputToFile = FALSE;
165 AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
166 }
167#endif
168}
169
170
171/*******************************************************************************
172 *
173 * FUNCTION: AcpiDbOpenDebugFile
174 *
175 * PARAMETERS: Name - Filename to open
176 *
177 * RETURN: Status
178 *
179 * DESCRIPTION: Open a file where debug output will be directed.
180 *
181 ******************************************************************************/
182
183void
184AcpiDbOpenDebugFile (
185 char *Name)
186{
187
188#ifdef ACPI_APPLICATION
189
190 AcpiDbCloseDebugFile ();
191 AcpiGbl_DebugFile = fopen (Name, "w+");
192 if (AcpiGbl_DebugFile)
193 {
194 AcpiOsPrintf ("Debug output file %s opened\n", Name);
195 ACPI_STRCPY (AcpiGbl_DbDebugFilename, Name);
196 AcpiGbl_DbOutputToFile = TRUE;
197 }
198 else
199 {
200 AcpiOsPrintf ("Could not open debug file %s\n", Name);
201 }
202
203#endif
204}
205#endif
206
207
208#ifdef ACPI_APPLICATION
209
210/*******************************************************************************
211 *
212 * FUNCTION: AcpiDbCheckTextModeCorruption
213 *
214 * PARAMETERS: Table - Table buffer
215 * TableLength - Length of table from the table header
216 * FileLength - Length of the file that contains the table
217 *
218 * RETURN: Status
219 *
220 * DESCRIPTION: Check table for text mode file corruption where all linefeed
221 * characters (LF) have been replaced by carriage return linefeed
222 * pairs (CR/LF).
223 *
224 ******************************************************************************/
225
226static ACPI_STATUS
227AcpiDbCheckTextModeCorruption (
228 UINT8 *Table,
229 UINT32 TableLength,
230 UINT32 FileLength)
231{
232 UINT32 i;
233 UINT32 Pairs = 0;
234
235
236 if (TableLength != FileLength)
237 {
238 ACPI_REPORT_WARNING (("File length (0x%X) is not the same as the table length (0x%X)\n",
239 FileLength, TableLength));
240 }
241
242 /* Scan entire table to determine if each LF has been prefixed with a CR */
243
244 for (i = 1; i < FileLength; i++)
245 {
246 if (Table[i] == 0x0A)
247 {
248 if (Table[i - 1] != 0x0D)
249 {
250 /* the LF does not have a preceeding CR, table is not corrupted */
251
252 return (AE_OK);
253 }
254 else
255 {
256 /* Found a CR/LF pair */
257
258 Pairs++;
259 }
260 i++;
261 }
262 }
263
264 /*
265 * Entire table scanned, each CR is part of a CR/LF pair --
266 * meaning that the table was treated as a text file somewhere.
267 *
268 * NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
269 * original table are left untouched by the text conversion process --
270 * meaning that we cannot simply replace CR/LF pairs with LFs.
271 */
272 AcpiOsPrintf ("Table has been corrupted by text mode conversion\n");
273 AcpiOsPrintf ("All LFs (%d) were changed to CR/LF pairs\n", Pairs);
274 AcpiOsPrintf ("Table cannot be repaired!\n");
275 return (AE_BAD_VALUE);
276}
277
278
279/*******************************************************************************
280 *
281 * FUNCTION: AcpiDbReadTable
282 *
283 * PARAMETERS: fp - File that contains table
284 * Table - Return value, buffer with table
285 * TableLength - Return value, length of table
286 *
287 * RETURN: Status
288 *
289 * DESCRIPTION: Load the DSDT from the file pointer
290 *
291 ******************************************************************************/
292
293static ACPI_STATUS
294AcpiDbReadTable (
295 FILE *fp,
296 ACPI_TABLE_HEADER **Table,
297 UINT32 *TableLength)
298{
299 ACPI_TABLE_HEADER TableHeader;
300 UINT32 Actual;
301 ACPI_STATUS Status;
302 UINT32 FileSize;
303
304
305 fseek (fp, 0, SEEK_END);
306 FileSize = ftell (fp);
307 fseek (fp, 0, SEEK_SET);
308
309 /* Read the table header */
310
311 if (fread (&TableHeader, 1, sizeof (TableHeader), fp) != sizeof (ACPI_TABLE_HEADER))
312 {
313 AcpiOsPrintf ("Couldn't read the table header\n");
314 return (AE_BAD_SIGNATURE);
315 }
316
317 /* Validate the table header/length */
318
319 Status = AcpiTbValidateTableHeader (&TableHeader);
320 if ((ACPI_FAILURE (Status)) ||
321 (TableHeader.Length > 0x800000)) /* 8 Mbyte should be enough */
322 {
323 AcpiOsPrintf ("Table header is invalid!\n");
324 return (AE_ERROR);
325 }
326
327 /* We only support a limited number of table types */
328
329 if (ACPI_STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
330 ACPI_STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
331 ACPI_STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
332 {
333 AcpiOsPrintf ("Table signature is invalid\n");
334 ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
335 return (AE_ERROR);
336 }
337
338 /* Allocate a buffer for the table */
339
340 *TableLength = TableHeader.Length;
341 *Table = AcpiOsAllocate ((size_t) (FileSize));
342 if (!*Table)
343 {
344 AcpiOsPrintf ("Could not allocate memory for ACPI table %4.4s (size=%X)\n",
345 TableHeader.Signature, TableHeader.Length);
346 return (AE_NO_MEMORY);
347 }
348
349 /* Get the rest of the table */
350
351 fseek (fp, 0, SEEK_SET);
352 Actual = fread (*Table, 1, (size_t) FileSize, fp);
353 if (Actual == FileSize)
354 {
355 /* Now validate the checksum */
356
357 Status = AcpiTbVerifyTableChecksum (*Table);
358
359 if (Status == AE_BAD_CHECKSUM)
360 {
361 Status = AcpiDbCheckTextModeCorruption ((UINT8 *) *Table,
362 FileSize, (*Table)->Length);
363 return (Status);
364 }
365 return (AE_OK);
366 }
367
368 if (Actual > 0)
369 {
370 AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n",
371 FileSize, Actual);
372 return (AE_OK);
373 }
374
375 AcpiOsPrintf ("Error - could not read the table file\n");
376 AcpiOsFree (*Table);
377 *Table = NULL;
378 *TableLength = 0;
379
380 return (AE_ERROR);
381}
382#endif
383
384
385/*******************************************************************************
386 *
387 * FUNCTION: AeLocalLoadTable
388 *
389 * PARAMETERS: Table - pointer to a buffer containing the entire
390 * table to be loaded
391 *
392 * RETURN: Status
393 *
394 * DESCRIPTION: This function is called to load a table from the caller's
395 * buffer. The buffer must contain an entire ACPI Table including
396 * a valid header. The header fields will be verified, and if it
397 * is determined that the table is invalid, the call will fail.
398 *
399 ******************************************************************************/
400
401ACPI_STATUS
402AeLocalLoadTable (
403 ACPI_TABLE_HEADER *Table)
404{
405 ACPI_STATUS Status;
406 ACPI_TABLE_DESC TableInfo;
407
408
409 ACPI_FUNCTION_TRACE ("AeLocalLoadTable");
410
411
412 if (!Table)
413 {
414 return_ACPI_STATUS (AE_BAD_PARAMETER);
415 }
416
417 TableInfo.Pointer = Table;
418 Status = AcpiTbRecognizeTable (&TableInfo, ACPI_TABLE_ALL);
419 if (ACPI_FAILURE (Status))
420 {
421 return_ACPI_STATUS (Status);
422 }
423
424 /* Install the new table into the local data structures */
425
426 Status = AcpiTbInstallTable (&TableInfo);
427 if (ACPI_FAILURE (Status))
428 {
429 /* Free table allocated by AcpiTbGetTable */
430
431 AcpiTbDeleteSingleTable (&TableInfo);
432 return_ACPI_STATUS (Status);
433 }
434
435#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
436
437 Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
438 if (ACPI_FAILURE (Status))
439 {
440 /* Uninstall table and free the buffer */
441
442 AcpiTbDeleteTablesByType (ACPI_TABLE_DSDT);
443 return_ACPI_STATUS (Status);
444 }
445#endif
446
447 return_ACPI_STATUS (Status);
448}
449
450
451#ifdef ACPI_APPLICATION
452/*******************************************************************************
453 *
454 * FUNCTION: AcpiDbReadTableFromFile
455 *
456 * PARAMETERS: Filename - File where table is located
457 * Table - Where a pointer to the table is returned
458 *
459 * RETURN: Status
460 *
461 * DESCRIPTION: Get an ACPI table from a file
462 *
463 ******************************************************************************/
464
465ACPI_STATUS
466AcpiDbReadTableFromFile (
467 char *Filename,
468 ACPI_TABLE_HEADER **Table)
469{
470 FILE *fp;
471 UINT32 TableLength;
472 ACPI_STATUS Status;
473
474
475 /* Open the file */
476
477 fp = fopen (Filename, "rb");
478 if (!fp)
479 {
480 AcpiOsPrintf ("Could not open input file %s\n", Filename);
481 return (AE_ERROR);
482 }
483
484 /* Get the entire file */
485
486 fprintf (stderr, "Loading Acpi table from file %s\n", Filename);
487 Status = AcpiDbReadTable (fp, Table, &TableLength);
488 fclose(fp);
489
490 if (ACPI_FAILURE (Status))
491 {
492 AcpiOsPrintf ("Couldn't get table from the file\n");
493 return (Status);
494 }
495
496 return (AE_OK);
497 }
498#endif
499
500
501/*******************************************************************************
502 *
503 * FUNCTION: AcpiDbGetTableFromFile
504 *
505 * PARAMETERS: Filename - File where table is located
506 * Table - Where a pointer to the table is returned
507 *
508 * RETURN: Status
509 *
510 * DESCRIPTION: Load an ACPI table from a file
511 *
512 ******************************************************************************/
513
514ACPI_STATUS
515AcpiDbGetTableFromFile (
516 char *Filename,
517 ACPI_TABLE_HEADER **ReturnTable)
518{
519#ifdef ACPI_APPLICATION
520 ACPI_STATUS Status;
521 ACPI_TABLE_HEADER *Table;
522
523
524 Status = AcpiDbReadTableFromFile (Filename, &Table);
525 if (ACPI_FAILURE (Status))
526 {
527 return (Status);
528 }
529
530 /* Attempt to recognize and install the table */
531
532 Status = AeLocalLoadTable (Table);
533 if (ACPI_FAILURE (Status))
534 {
535 if (Status == AE_ALREADY_EXISTS)
536 {
537 AcpiOsPrintf ("Table %4.4s is already installed\n",
538 Table->Signature);
539 }
540 else
541 {
542 AcpiOsPrintf ("Could not install table, %s\n",
543 AcpiFormatException (Status));
544 }
545
546 return (Status);
547 }
548
549 fprintf (stderr, "Acpi table [%4.4s] successfully installed and loaded\n",
550 Table->Signature);
551
552 AcpiGbl_AcpiHardwarePresent = FALSE;
553 if (ReturnTable)
554 {
555 *ReturnTable = Table;
556 }
557
558
559#endif /* ACPI_APPLICATION */
560 return (AE_OK);
561}
562
563#endif /* ACPI_DEBUGGER */
564
| 14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#include "acpi.h"
120#include "acdebug.h"
121#include "acnamesp.h"
122#include "actables.h"
123
124#if (defined ACPI_DEBUGGER || defined ACPI_DISASSEMBLER)
125
126#define _COMPONENT ACPI_CA_DEBUGGER
127 ACPI_MODULE_NAME ("dbfileio")
128
129
130/*
131 * NOTE: this is here for lack of a better place. It is used in all
132 * flavors of the debugger, need LCD file
133 */
134#ifdef ACPI_APPLICATION
135#include <stdio.h>
136FILE *AcpiGbl_DebugFile = NULL;
137#endif
138
139
140#ifdef ACPI_DEBUGGER
141/*******************************************************************************
142 *
143 * FUNCTION: AcpiDbCloseDebugFile
144 *
145 * PARAMETERS: None
146 *
147 * RETURN: Status
148 *
149 * DESCRIPTION: If open, close the current debug output file
150 *
151 ******************************************************************************/
152
153void
154AcpiDbCloseDebugFile (
155 void)
156{
157
158#ifdef ACPI_APPLICATION
159
160 if (AcpiGbl_DebugFile)
161 {
162 fclose (AcpiGbl_DebugFile);
163 AcpiGbl_DebugFile = NULL;
164 AcpiGbl_DbOutputToFile = FALSE;
165 AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
166 }
167#endif
168}
169
170
171/*******************************************************************************
172 *
173 * FUNCTION: AcpiDbOpenDebugFile
174 *
175 * PARAMETERS: Name - Filename to open
176 *
177 * RETURN: Status
178 *
179 * DESCRIPTION: Open a file where debug output will be directed.
180 *
181 ******************************************************************************/
182
183void
184AcpiDbOpenDebugFile (
185 char *Name)
186{
187
188#ifdef ACPI_APPLICATION
189
190 AcpiDbCloseDebugFile ();
191 AcpiGbl_DebugFile = fopen (Name, "w+");
192 if (AcpiGbl_DebugFile)
193 {
194 AcpiOsPrintf ("Debug output file %s opened\n", Name);
195 ACPI_STRCPY (AcpiGbl_DbDebugFilename, Name);
196 AcpiGbl_DbOutputToFile = TRUE;
197 }
198 else
199 {
200 AcpiOsPrintf ("Could not open debug file %s\n", Name);
201 }
202
203#endif
204}
205#endif
206
207
208#ifdef ACPI_APPLICATION
209
210/*******************************************************************************
211 *
212 * FUNCTION: AcpiDbCheckTextModeCorruption
213 *
214 * PARAMETERS: Table - Table buffer
215 * TableLength - Length of table from the table header
216 * FileLength - Length of the file that contains the table
217 *
218 * RETURN: Status
219 *
220 * DESCRIPTION: Check table for text mode file corruption where all linefeed
221 * characters (LF) have been replaced by carriage return linefeed
222 * pairs (CR/LF).
223 *
224 ******************************************************************************/
225
226static ACPI_STATUS
227AcpiDbCheckTextModeCorruption (
228 UINT8 *Table,
229 UINT32 TableLength,
230 UINT32 FileLength)
231{
232 UINT32 i;
233 UINT32 Pairs = 0;
234
235
236 if (TableLength != FileLength)
237 {
238 ACPI_REPORT_WARNING (("File length (0x%X) is not the same as the table length (0x%X)\n",
239 FileLength, TableLength));
240 }
241
242 /* Scan entire table to determine if each LF has been prefixed with a CR */
243
244 for (i = 1; i < FileLength; i++)
245 {
246 if (Table[i] == 0x0A)
247 {
248 if (Table[i - 1] != 0x0D)
249 {
250 /* the LF does not have a preceeding CR, table is not corrupted */
251
252 return (AE_OK);
253 }
254 else
255 {
256 /* Found a CR/LF pair */
257
258 Pairs++;
259 }
260 i++;
261 }
262 }
263
264 /*
265 * Entire table scanned, each CR is part of a CR/LF pair --
266 * meaning that the table was treated as a text file somewhere.
267 *
268 * NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
269 * original table are left untouched by the text conversion process --
270 * meaning that we cannot simply replace CR/LF pairs with LFs.
271 */
272 AcpiOsPrintf ("Table has been corrupted by text mode conversion\n");
273 AcpiOsPrintf ("All LFs (%d) were changed to CR/LF pairs\n", Pairs);
274 AcpiOsPrintf ("Table cannot be repaired!\n");
275 return (AE_BAD_VALUE);
276}
277
278
279/*******************************************************************************
280 *
281 * FUNCTION: AcpiDbReadTable
282 *
283 * PARAMETERS: fp - File that contains table
284 * Table - Return value, buffer with table
285 * TableLength - Return value, length of table
286 *
287 * RETURN: Status
288 *
289 * DESCRIPTION: Load the DSDT from the file pointer
290 *
291 ******************************************************************************/
292
293static ACPI_STATUS
294AcpiDbReadTable (
295 FILE *fp,
296 ACPI_TABLE_HEADER **Table,
297 UINT32 *TableLength)
298{
299 ACPI_TABLE_HEADER TableHeader;
300 UINT32 Actual;
301 ACPI_STATUS Status;
302 UINT32 FileSize;
303
304
305 fseek (fp, 0, SEEK_END);
306 FileSize = ftell (fp);
307 fseek (fp, 0, SEEK_SET);
308
309 /* Read the table header */
310
311 if (fread (&TableHeader, 1, sizeof (TableHeader), fp) != sizeof (ACPI_TABLE_HEADER))
312 {
313 AcpiOsPrintf ("Couldn't read the table header\n");
314 return (AE_BAD_SIGNATURE);
315 }
316
317 /* Validate the table header/length */
318
319 Status = AcpiTbValidateTableHeader (&TableHeader);
320 if ((ACPI_FAILURE (Status)) ||
321 (TableHeader.Length > 0x800000)) /* 8 Mbyte should be enough */
322 {
323 AcpiOsPrintf ("Table header is invalid!\n");
324 return (AE_ERROR);
325 }
326
327 /* We only support a limited number of table types */
328
329 if (ACPI_STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
330 ACPI_STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
331 ACPI_STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
332 {
333 AcpiOsPrintf ("Table signature is invalid\n");
334 ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
335 return (AE_ERROR);
336 }
337
338 /* Allocate a buffer for the table */
339
340 *TableLength = TableHeader.Length;
341 *Table = AcpiOsAllocate ((size_t) (FileSize));
342 if (!*Table)
343 {
344 AcpiOsPrintf ("Could not allocate memory for ACPI table %4.4s (size=%X)\n",
345 TableHeader.Signature, TableHeader.Length);
346 return (AE_NO_MEMORY);
347 }
348
349 /* Get the rest of the table */
350
351 fseek (fp, 0, SEEK_SET);
352 Actual = fread (*Table, 1, (size_t) FileSize, fp);
353 if (Actual == FileSize)
354 {
355 /* Now validate the checksum */
356
357 Status = AcpiTbVerifyTableChecksum (*Table);
358
359 if (Status == AE_BAD_CHECKSUM)
360 {
361 Status = AcpiDbCheckTextModeCorruption ((UINT8 *) *Table,
362 FileSize, (*Table)->Length);
363 return (Status);
364 }
365 return (AE_OK);
366 }
367
368 if (Actual > 0)
369 {
370 AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n",
371 FileSize, Actual);
372 return (AE_OK);
373 }
374
375 AcpiOsPrintf ("Error - could not read the table file\n");
376 AcpiOsFree (*Table);
377 *Table = NULL;
378 *TableLength = 0;
379
380 return (AE_ERROR);
381}
382#endif
383
384
385/*******************************************************************************
386 *
387 * FUNCTION: AeLocalLoadTable
388 *
389 * PARAMETERS: Table - pointer to a buffer containing the entire
390 * table to be loaded
391 *
392 * RETURN: Status
393 *
394 * DESCRIPTION: This function is called to load a table from the caller's
395 * buffer. The buffer must contain an entire ACPI Table including
396 * a valid header. The header fields will be verified, and if it
397 * is determined that the table is invalid, the call will fail.
398 *
399 ******************************************************************************/
400
401ACPI_STATUS
402AeLocalLoadTable (
403 ACPI_TABLE_HEADER *Table)
404{
405 ACPI_STATUS Status;
406 ACPI_TABLE_DESC TableInfo;
407
408
409 ACPI_FUNCTION_TRACE ("AeLocalLoadTable");
410
411
412 if (!Table)
413 {
414 return_ACPI_STATUS (AE_BAD_PARAMETER);
415 }
416
417 TableInfo.Pointer = Table;
418 Status = AcpiTbRecognizeTable (&TableInfo, ACPI_TABLE_ALL);
419 if (ACPI_FAILURE (Status))
420 {
421 return_ACPI_STATUS (Status);
422 }
423
424 /* Install the new table into the local data structures */
425
426 Status = AcpiTbInstallTable (&TableInfo);
427 if (ACPI_FAILURE (Status))
428 {
429 /* Free table allocated by AcpiTbGetTable */
430
431 AcpiTbDeleteSingleTable (&TableInfo);
432 return_ACPI_STATUS (Status);
433 }
434
435#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
436
437 Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
438 if (ACPI_FAILURE (Status))
439 {
440 /* Uninstall table and free the buffer */
441
442 AcpiTbDeleteTablesByType (ACPI_TABLE_DSDT);
443 return_ACPI_STATUS (Status);
444 }
445#endif
446
447 return_ACPI_STATUS (Status);
448}
449
450
451#ifdef ACPI_APPLICATION
452/*******************************************************************************
453 *
454 * FUNCTION: AcpiDbReadTableFromFile
455 *
456 * PARAMETERS: Filename - File where table is located
457 * Table - Where a pointer to the table is returned
458 *
459 * RETURN: Status
460 *
461 * DESCRIPTION: Get an ACPI table from a file
462 *
463 ******************************************************************************/
464
465ACPI_STATUS
466AcpiDbReadTableFromFile (
467 char *Filename,
468 ACPI_TABLE_HEADER **Table)
469{
470 FILE *fp;
471 UINT32 TableLength;
472 ACPI_STATUS Status;
473
474
475 /* Open the file */
476
477 fp = fopen (Filename, "rb");
478 if (!fp)
479 {
480 AcpiOsPrintf ("Could not open input file %s\n", Filename);
481 return (AE_ERROR);
482 }
483
484 /* Get the entire file */
485
486 fprintf (stderr, "Loading Acpi table from file %s\n", Filename);
487 Status = AcpiDbReadTable (fp, Table, &TableLength);
488 fclose(fp);
489
490 if (ACPI_FAILURE (Status))
491 {
492 AcpiOsPrintf ("Couldn't get table from the file\n");
493 return (Status);
494 }
495
496 return (AE_OK);
497 }
498#endif
499
500
501/*******************************************************************************
502 *
503 * FUNCTION: AcpiDbGetTableFromFile
504 *
505 * PARAMETERS: Filename - File where table is located
506 * Table - Where a pointer to the table is returned
507 *
508 * RETURN: Status
509 *
510 * DESCRIPTION: Load an ACPI table from a file
511 *
512 ******************************************************************************/
513
514ACPI_STATUS
515AcpiDbGetTableFromFile (
516 char *Filename,
517 ACPI_TABLE_HEADER **ReturnTable)
518{
519#ifdef ACPI_APPLICATION
520 ACPI_STATUS Status;
521 ACPI_TABLE_HEADER *Table;
522
523
524 Status = AcpiDbReadTableFromFile (Filename, &Table);
525 if (ACPI_FAILURE (Status))
526 {
527 return (Status);
528 }
529
530 /* Attempt to recognize and install the table */
531
532 Status = AeLocalLoadTable (Table);
533 if (ACPI_FAILURE (Status))
534 {
535 if (Status == AE_ALREADY_EXISTS)
536 {
537 AcpiOsPrintf ("Table %4.4s is already installed\n",
538 Table->Signature);
539 }
540 else
541 {
542 AcpiOsPrintf ("Could not install table, %s\n",
543 AcpiFormatException (Status));
544 }
545
546 return (Status);
547 }
548
549 fprintf (stderr, "Acpi table [%4.4s] successfully installed and loaded\n",
550 Table->Signature);
551
552 AcpiGbl_AcpiHardwarePresent = FALSE;
553 if (ReturnTable)
554 {
555 *ReturnTable = Table;
556 }
557
558
559#endif /* ACPI_APPLICATION */
560 return (AE_OK);
561}
562
563#endif /* ACPI_DEBUGGER */
564
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