Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Module Name: utmisc - common utility procedures | |
4 | * | |
5 | ******************************************************************************/ | |
6 | ||
7 | /* | |
77848130 | 8 | * Copyright (C) 2000 - 2012, Intel Corp. |
1da177e4 LT |
9 | * All rights reserved. |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
1da177e4 | 44 | #include <acpi/acpi.h> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acnamesp.h" | |
1da177e4 | 47 | |
1da177e4 | 48 | #define _COMPONENT ACPI_UTILITIES |
4be44fcd | 49 | ACPI_MODULE_NAME("utmisc") |
44f6c012 | 50 | |
26181bf4 | 51 | #if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP |
c6e1733e BM |
52 | /******************************************************************************* |
53 | * | |
54 | * FUNCTION: ut_convert_backslashes | |
55 | * | |
ba494bee | 56 | * PARAMETERS: pathname - File pathname string to be converted |
c6e1733e BM |
57 | * |
58 | * RETURN: Modifies the input Pathname | |
59 | * | |
60 | * DESCRIPTION: Convert all backslashes (0x5C) to forward slashes (0x2F) within | |
61 | * the entire input file pathname string. | |
62 | * | |
63 | ******************************************************************************/ | |
64 | void ut_convert_backslashes(char *pathname) | |
65 | { | |
66 | ||
67 | if (!pathname) { | |
68 | return; | |
69 | } | |
70 | ||
71 | while (*pathname) { | |
72 | if (*pathname == '\\') { | |
73 | *pathname = '/'; | |
74 | } | |
75 | ||
76 | pathname++; | |
77 | } | |
78 | } | |
26181bf4 | 79 | #endif |
c6e1733e | 80 | |
15b8dd53 BM |
81 | /******************************************************************************* |
82 | * | |
83 | * FUNCTION: acpi_ut_is_pci_root_bridge | |
84 | * | |
ba494bee | 85 | * PARAMETERS: id - The HID/CID in string format |
15b8dd53 BM |
86 | * |
87 | * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge | |
88 | * | |
89 | * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. | |
90 | * | |
91 | ******************************************************************************/ | |
92 | ||
93 | u8 acpi_ut_is_pci_root_bridge(char *id) | |
94 | { | |
95 | ||
96 | /* | |
97 | * Check if this is a PCI root bridge. | |
98 | * ACPI 3.0+: check for a PCI Express root also. | |
99 | */ | |
100 | if (!(ACPI_STRCMP(id, | |
101 | PCI_ROOT_HID_STRING)) || | |
102 | !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) { | |
103 | return (TRUE); | |
104 | } | |
105 | ||
106 | return (FALSE); | |
107 | } | |
108 | ||
793c2388 BM |
109 | /******************************************************************************* |
110 | * | |
111 | * FUNCTION: acpi_ut_is_aml_table | |
112 | * | |
ba494bee | 113 | * PARAMETERS: table - An ACPI table |
793c2388 BM |
114 | * |
115 | * RETURN: TRUE if table contains executable AML; FALSE otherwise | |
116 | * | |
117 | * DESCRIPTION: Check ACPI Signature for a table that contains AML code. | |
118 | * Currently, these are DSDT,SSDT,PSDT. All other table types are | |
119 | * data tables that do not contain AML code. | |
120 | * | |
121 | ******************************************************************************/ | |
84fb2c97 | 122 | |
793c2388 BM |
123 | u8 acpi_ut_is_aml_table(struct acpi_table_header *table) |
124 | { | |
125 | ||
f6dd9221 | 126 | /* These are the only tables that contain executable AML */ |
793c2388 | 127 | |
f3d2e786 BM |
128 | if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) || |
129 | ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) || | |
130 | ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) { | |
793c2388 BM |
131 | return (TRUE); |
132 | } | |
133 | ||
134 | return (FALSE); | |
135 | } | |
136 | ||
f9f4601f RM |
137 | /******************************************************************************* |
138 | * | |
139 | * FUNCTION: acpi_ut_allocate_owner_id | |
140 | * | |
141 | * PARAMETERS: owner_id - Where the new owner ID is returned | |
142 | * | |
0c9938cc RM |
143 | * RETURN: Status |
144 | * | |
145 | * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to | |
146 | * track objects created by the table or method, to be deleted | |
147 | * when the method exits or the table is unloaded. | |
f9f4601f RM |
148 | * |
149 | ******************************************************************************/ | |
793c2388 | 150 | |
4be44fcd | 151 | acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) |
f9f4601f | 152 | { |
67a119f9 BM |
153 | u32 i; |
154 | u32 j; | |
155 | u32 k; | |
4be44fcd | 156 | acpi_status status; |
f9f4601f | 157 | |
b229cf92 | 158 | ACPI_FUNCTION_TRACE(ut_allocate_owner_id); |
f9f4601f | 159 | |
aff8c277 RM |
160 | /* Guard against multiple allocations of ID to the same location */ |
161 | ||
162 | if (*owner_id) { | |
f6a22b0b | 163 | ACPI_ERROR((AE_INFO, "Owner ID [0x%2.2X] already exists", |
b8e4d893 | 164 | *owner_id)); |
aff8c277 RM |
165 | return_ACPI_STATUS(AE_ALREADY_EXISTS); |
166 | } | |
167 | ||
0c9938cc RM |
168 | /* Mutex for the global ID mask */ |
169 | ||
4be44fcd LB |
170 | status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); |
171 | if (ACPI_FAILURE(status)) { | |
172 | return_ACPI_STATUS(status); | |
f9f4601f RM |
173 | } |
174 | ||
c51a4de8 BM |
175 | /* |
176 | * Find a free owner ID, cycle through all possible IDs on repeated | |
28f55ebc BM |
177 | * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have |
178 | * to be scanned twice. | |
c51a4de8 | 179 | */ |
28f55ebc BM |
180 | for (i = 0, j = acpi_gbl_last_owner_id_index; |
181 | i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) { | |
182 | if (j >= ACPI_NUM_OWNERID_MASKS) { | |
183 | j = 0; /* Wraparound to start of mask array */ | |
c51a4de8 BM |
184 | } |
185 | ||
28f55ebc BM |
186 | for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) { |
187 | if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) { | |
52fc0b02 | 188 | |
28f55ebc BM |
189 | /* There are no free IDs in this mask */ |
190 | ||
191 | break; | |
192 | } | |
193 | ||
194 | if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) { | |
195 | /* | |
196 | * Found a free ID. The actual ID is the bit index plus one, | |
197 | * making zero an invalid Owner ID. Save this as the last ID | |
198 | * allocated and update the global ID mask. | |
199 | */ | |
200 | acpi_gbl_owner_id_mask[j] |= (1 << k); | |
201 | ||
6d33b6be LZ |
202 | acpi_gbl_last_owner_id_index = (u8)j; |
203 | acpi_gbl_next_owner_id_offset = (u8)(k + 1); | |
28f55ebc BM |
204 | |
205 | /* | |
206 | * Construct encoded ID from the index and bit position | |
207 | * | |
208 | * Note: Last [j].k (bit 255) is never used and is marked | |
209 | * permanently allocated (prevents +1 overflow) | |
210 | */ | |
211 | *owner_id = | |
212 | (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j)); | |
213 | ||
214 | ACPI_DEBUG_PRINT((ACPI_DB_VALUES, | |
b229cf92 | 215 | "Allocated OwnerId: %2.2X\n", |
28f55ebc BM |
216 | (unsigned int)*owner_id)); |
217 | goto exit; | |
218 | } | |
f9f4601f | 219 | } |
28f55ebc BM |
220 | |
221 | acpi_gbl_next_owner_id_offset = 0; | |
f9f4601f RM |
222 | } |
223 | ||
224 | /* | |
c51a4de8 | 225 | * All owner_ids have been allocated. This typically should |
f9f4601f RM |
226 | * not happen since the IDs are reused after deallocation. The IDs are |
227 | * allocated upon table load (one per table) and method execution, and | |
228 | * they are released when a table is unloaded or a method completes | |
229 | * execution. | |
c51a4de8 BM |
230 | * |
231 | * If this error happens, there may be very deep nesting of invoked control | |
232 | * methods, or there may be a bug where the IDs are not released. | |
f9f4601f RM |
233 | */ |
234 | status = AE_OWNER_ID_LIMIT; | |
b8e4d893 | 235 | ACPI_ERROR((AE_INFO, |
b229cf92 | 236 | "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT")); |
f9f4601f | 237 | |
4be44fcd LB |
238 | exit: |
239 | (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); | |
240 | return_ACPI_STATUS(status); | |
f9f4601f RM |
241 | } |
242 | ||
f9f4601f RM |
243 | /******************************************************************************* |
244 | * | |
245 | * FUNCTION: acpi_ut_release_owner_id | |
246 | * | |
ba494bee | 247 | * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_ID |
f9f4601f | 248 | * |
0c9938cc RM |
249 | * RETURN: None. No error is returned because we are either exiting a |
250 | * control method or unloading a table. Either way, we would | |
251 | * ignore any error anyway. | |
252 | * | |
73a3090a | 253 | * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255 |
f9f4601f RM |
254 | * |
255 | ******************************************************************************/ | |
256 | ||
4be44fcd | 257 | void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) |
f9f4601f | 258 | { |
4be44fcd LB |
259 | acpi_owner_id owner_id = *owner_id_ptr; |
260 | acpi_status status; | |
67a119f9 | 261 | u32 index; |
28f55ebc | 262 | u32 bit; |
f9f4601f | 263 | |
b229cf92 | 264 | ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id); |
f9f4601f | 265 | |
0c9938cc RM |
266 | /* Always clear the input owner_id (zero is an invalid ID) */ |
267 | ||
268 | *owner_id_ptr = 0; | |
269 | ||
ba494bee | 270 | /* Zero is not a valid owner_ID */ |
0c9938cc | 271 | |
defba1d8 | 272 | if (owner_id == 0) { |
f6a22b0b | 273 | ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id)); |
0c9938cc RM |
274 | return_VOID; |
275 | } | |
276 | ||
277 | /* Mutex for the global ID mask */ | |
278 | ||
4be44fcd LB |
279 | status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); |
280 | if (ACPI_FAILURE(status)) { | |
0c9938cc | 281 | return_VOID; |
f9f4601f RM |
282 | } |
283 | ||
aff8c277 RM |
284 | /* Normalize the ID to zero */ |
285 | ||
286 | owner_id--; | |
0c9938cc | 287 | |
28f55ebc BM |
288 | /* Decode ID to index/offset pair */ |
289 | ||
290 | index = ACPI_DIV_32(owner_id); | |
291 | bit = 1 << ACPI_MOD_32(owner_id); | |
292 | ||
0c9938cc | 293 | /* Free the owner ID only if it is valid */ |
f9f4601f | 294 | |
28f55ebc BM |
295 | if (acpi_gbl_owner_id_mask[index] & bit) { |
296 | acpi_gbl_owner_id_mask[index] ^= bit; | |
297 | } else { | |
b8e4d893 | 298 | ACPI_ERROR((AE_INFO, |
f6a22b0b | 299 | "Release of non-allocated OwnerId: 0x%2.2X", |
b8e4d893 | 300 | owner_id + 1)); |
f9f4601f | 301 | } |
f9f4601f | 302 | |
4be44fcd | 303 | (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); |
0c9938cc | 304 | return_VOID; |
f9f4601f RM |
305 | } |
306 | ||
44f6c012 RM |
307 | /******************************************************************************* |
308 | * | |
309 | * FUNCTION: acpi_ut_strupr (strupr) | |
310 | * | |
311 | * PARAMETERS: src_string - The source string to convert | |
312 | * | |
0c9938cc | 313 | * RETURN: None |
44f6c012 RM |
314 | * |
315 | * DESCRIPTION: Convert string to uppercase | |
316 | * | |
317 | * NOTE: This is not a POSIX function, so it appears here, not in utclib.c | |
318 | * | |
319 | ******************************************************************************/ | |
320 | ||
4be44fcd | 321 | void acpi_ut_strupr(char *src_string) |
44f6c012 | 322 | { |
4be44fcd | 323 | char *string; |
44f6c012 | 324 | |
4be44fcd | 325 | ACPI_FUNCTION_ENTRY(); |
44f6c012 | 326 | |
73459f73 | 327 | if (!src_string) { |
0c9938cc | 328 | return; |
73459f73 RM |
329 | } |
330 | ||
44f6c012 RM |
331 | /* Walk entire string, uppercasing the letters */ |
332 | ||
333 | for (string = src_string; *string; string++) { | |
4be44fcd | 334 | *string = (char)ACPI_TOUPPER(*string); |
44f6c012 RM |
335 | } |
336 | ||
0c9938cc | 337 | return; |
44f6c012 RM |
338 | } |
339 | ||
6d33b6be LZ |
340 | #ifdef ACPI_ASL_COMPILER |
341 | /******************************************************************************* | |
342 | * | |
343 | * FUNCTION: acpi_ut_strlwr (strlwr) | |
344 | * | |
345 | * PARAMETERS: src_string - The source string to convert | |
346 | * | |
347 | * RETURN: None | |
348 | * | |
349 | * DESCRIPTION: Convert string to lowercase | |
350 | * | |
351 | * NOTE: This is not a POSIX function, so it appears here, not in utclib.c | |
352 | * | |
353 | ******************************************************************************/ | |
354 | ||
355 | void acpi_ut_strlwr(char *src_string) | |
356 | { | |
357 | char *string; | |
358 | ||
359 | ACPI_FUNCTION_ENTRY(); | |
360 | ||
361 | if (!src_string) { | |
362 | return; | |
363 | } | |
364 | ||
365 | /* Walk entire string, lowercasing the letters */ | |
366 | ||
367 | for (string = src_string; *string; string++) { | |
368 | *string = (char)ACPI_TOLOWER(*string); | |
369 | } | |
370 | ||
371 | return; | |
372 | } | |
373 | ||
374 | /****************************************************************************** | |
375 | * | |
376 | * FUNCTION: acpi_ut_stricmp | |
377 | * | |
378 | * PARAMETERS: string1 - first string to compare | |
379 | * string2 - second string to compare | |
380 | * | |
381 | * RETURN: int that signifies string relationship. Zero means strings | |
382 | * are equal. | |
383 | * | |
384 | * DESCRIPTION: Implementation of the non-ANSI stricmp function (compare | |
385 | * strings with no case sensitivity) | |
386 | * | |
387 | ******************************************************************************/ | |
388 | ||
389 | int acpi_ut_stricmp(char *string1, char *string2) | |
390 | { | |
391 | int c1; | |
392 | int c2; | |
393 | ||
394 | do { | |
395 | c1 = tolower((int)*string1); | |
396 | c2 = tolower((int)*string2); | |
397 | ||
398 | string1++; | |
399 | string2++; | |
400 | } | |
401 | while ((c1 == c2) && (c1)); | |
402 | ||
403 | return (c1 - c2); | |
404 | } | |
405 | #endif | |
406 | ||
1da177e4 LT |
407 | /******************************************************************************* |
408 | * | |
409 | * FUNCTION: acpi_ut_print_string | |
410 | * | |
ba494bee | 411 | * PARAMETERS: string - Null terminated ASCII string |
44f6c012 | 412 | * max_length - Maximum output length |
1da177e4 LT |
413 | * |
414 | * RETURN: None | |
415 | * | |
416 | * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape | |
417 | * sequences. | |
418 | * | |
419 | ******************************************************************************/ | |
420 | ||
4be44fcd | 421 | void acpi_ut_print_string(char *string, u8 max_length) |
1da177e4 | 422 | { |
4be44fcd | 423 | u32 i; |
1da177e4 LT |
424 | |
425 | if (!string) { | |
4be44fcd | 426 | acpi_os_printf("<\"NULL STRING PTR\">"); |
1da177e4 LT |
427 | return; |
428 | } | |
429 | ||
4be44fcd | 430 | acpi_os_printf("\""); |
1da177e4 | 431 | for (i = 0; string[i] && (i < max_length); i++) { |
52fc0b02 | 432 | |
1da177e4 LT |
433 | /* Escape sequences */ |
434 | ||
435 | switch (string[i]) { | |
436 | case 0x07: | |
4be44fcd | 437 | acpi_os_printf("\\a"); /* BELL */ |
1da177e4 LT |
438 | break; |
439 | ||
440 | case 0x08: | |
4be44fcd | 441 | acpi_os_printf("\\b"); /* BACKSPACE */ |
1da177e4 LT |
442 | break; |
443 | ||
444 | case 0x0C: | |
4be44fcd | 445 | acpi_os_printf("\\f"); /* FORMFEED */ |
1da177e4 LT |
446 | break; |
447 | ||
448 | case 0x0A: | |
4be44fcd | 449 | acpi_os_printf("\\n"); /* LINEFEED */ |
1da177e4 LT |
450 | break; |
451 | ||
452 | case 0x0D: | |
4be44fcd | 453 | acpi_os_printf("\\r"); /* CARRIAGE RETURN */ |
1da177e4 LT |
454 | break; |
455 | ||
456 | case 0x09: | |
4be44fcd | 457 | acpi_os_printf("\\t"); /* HORIZONTAL TAB */ |
1da177e4 LT |
458 | break; |
459 | ||
460 | case 0x0B: | |
4be44fcd | 461 | acpi_os_printf("\\v"); /* VERTICAL TAB */ |
1da177e4 LT |
462 | break; |
463 | ||
4be44fcd LB |
464 | case '\'': /* Single Quote */ |
465 | case '\"': /* Double Quote */ | |
466 | case '\\': /* Backslash */ | |
467 | acpi_os_printf("\\%c", (int)string[i]); | |
1da177e4 LT |
468 | break; |
469 | ||
470 | default: | |
471 | ||
472 | /* Check for printable character or hex escape */ | |
473 | ||
4be44fcd | 474 | if (ACPI_IS_PRINT(string[i])) { |
1da177e4 LT |
475 | /* This is a normal character */ |
476 | ||
4be44fcd LB |
477 | acpi_os_printf("%c", (int)string[i]); |
478 | } else { | |
1da177e4 LT |
479 | /* All others will be Hex escapes */ |
480 | ||
4be44fcd | 481 | acpi_os_printf("\\x%2.2X", (s32) string[i]); |
1da177e4 LT |
482 | } |
483 | break; | |
484 | } | |
485 | } | |
4be44fcd | 486 | acpi_os_printf("\""); |
1da177e4 LT |
487 | |
488 | if (i == max_length && string[i]) { | |
4be44fcd | 489 | acpi_os_printf("..."); |
1da177e4 LT |
490 | } |
491 | } | |
492 | ||
1da177e4 LT |
493 | /******************************************************************************* |
494 | * | |
495 | * FUNCTION: acpi_ut_dword_byte_swap | |
496 | * | |
ba494bee | 497 | * PARAMETERS: value - Value to be converted |
1da177e4 | 498 | * |
44f6c012 RM |
499 | * RETURN: u32 integer with bytes swapped |
500 | * | |
1da177e4 LT |
501 | * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes) |
502 | * | |
503 | ******************************************************************************/ | |
504 | ||
4be44fcd | 505 | u32 acpi_ut_dword_byte_swap(u32 value) |
1da177e4 LT |
506 | { |
507 | union { | |
4be44fcd LB |
508 | u32 value; |
509 | u8 bytes[4]; | |
1da177e4 | 510 | } out; |
1da177e4 | 511 | union { |
4be44fcd LB |
512 | u32 value; |
513 | u8 bytes[4]; | |
1da177e4 LT |
514 | } in; |
515 | ||
4be44fcd | 516 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
517 | |
518 | in.value = value; | |
519 | ||
520 | out.bytes[0] = in.bytes[3]; | |
521 | out.bytes[1] = in.bytes[2]; | |
522 | out.bytes[2] = in.bytes[1]; | |
523 | out.bytes[3] = in.bytes[0]; | |
524 | ||
525 | return (out.value); | |
526 | } | |
527 | ||
1da177e4 LT |
528 | /******************************************************************************* |
529 | * | |
530 | * FUNCTION: acpi_ut_set_integer_width | |
531 | * | |
532 | * PARAMETERS: Revision From DSDT header | |
533 | * | |
534 | * RETURN: None | |
535 | * | |
536 | * DESCRIPTION: Set the global integer bit width based upon the revision | |
73a3090a BM |
537 | * of the DSDT. For Revision 1 and 0, Integers are 32 bits. |
538 | * For Revision 2 and above, Integers are 64 bits. Yes, this | |
1da177e4 LT |
539 | * makes a difference. |
540 | * | |
541 | ******************************************************************************/ | |
542 | ||
4be44fcd | 543 | void acpi_ut_set_integer_width(u8 revision) |
1da177e4 LT |
544 | { |
545 | ||
f3d2e786 | 546 | if (revision < 2) { |
f6dd9221 BM |
547 | |
548 | /* 32-bit case */ | |
549 | ||
1da177e4 LT |
550 | acpi_gbl_integer_bit_width = 32; |
551 | acpi_gbl_integer_nybble_width = 8; | |
552 | acpi_gbl_integer_byte_width = 4; | |
4be44fcd | 553 | } else { |
f6dd9221 BM |
554 | /* 64-bit case (ACPI 2.0+) */ |
555 | ||
1da177e4 LT |
556 | acpi_gbl_integer_bit_width = 64; |
557 | acpi_gbl_integer_nybble_width = 16; | |
558 | acpi_gbl_integer_byte_width = 8; | |
559 | } | |
560 | } | |
561 | ||
1da177e4 LT |
562 | #ifdef ACPI_DEBUG_OUTPUT |
563 | /******************************************************************************* | |
564 | * | |
565 | * FUNCTION: acpi_ut_display_init_pathname | |
566 | * | |
ba494bee | 567 | * PARAMETERS: type - Object type of the node |
44f6c012 | 568 | * obj_handle - Handle whose pathname will be displayed |
ba494bee | 569 | * path - Additional path string to be appended. |
1da177e4 LT |
570 | * (NULL if no extra path) |
571 | * | |
572 | * RETURN: acpi_status | |
573 | * | |
574 | * DESCRIPTION: Display full pathname of an object, DEBUG ONLY | |
575 | * | |
576 | ******************************************************************************/ | |
577 | ||
578 | void | |
4be44fcd LB |
579 | acpi_ut_display_init_pathname(u8 type, |
580 | struct acpi_namespace_node *obj_handle, | |
581 | char *path) | |
1da177e4 | 582 | { |
4be44fcd LB |
583 | acpi_status status; |
584 | struct acpi_buffer buffer; | |
1da177e4 | 585 | |
4be44fcd | 586 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
587 | |
588 | /* Only print the path if the appropriate debug level is enabled */ | |
589 | ||
590 | if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { | |
591 | return; | |
592 | } | |
593 | ||
594 | /* Get the full pathname to the node */ | |
595 | ||
596 | buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; | |
4be44fcd LB |
597 | status = acpi_ns_handle_to_pathname(obj_handle, &buffer); |
598 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
599 | return; |
600 | } | |
601 | ||
602 | /* Print what we're doing */ | |
603 | ||
604 | switch (type) { | |
605 | case ACPI_TYPE_METHOD: | |
4be44fcd | 606 | acpi_os_printf("Executing "); |
1da177e4 LT |
607 | break; |
608 | ||
609 | default: | |
4be44fcd | 610 | acpi_os_printf("Initializing "); |
1da177e4 LT |
611 | break; |
612 | } | |
613 | ||
614 | /* Print the object type and pathname */ | |
615 | ||
4be44fcd LB |
616 | acpi_os_printf("%-12s %s", |
617 | acpi_ut_get_type_name(type), (char *)buffer.pointer); | |
1da177e4 LT |
618 | |
619 | /* Extra path is used to append names like _STA, _INI, etc. */ | |
620 | ||
621 | if (path) { | |
4be44fcd | 622 | acpi_os_printf(".%s", path); |
1da177e4 | 623 | } |
4be44fcd | 624 | acpi_os_printf("\n"); |
1da177e4 | 625 | |
8313524a | 626 | ACPI_FREE(buffer.pointer); |
1da177e4 LT |
627 | } |
628 | #endif | |
629 | ||
793c2388 BM |
630 | /******************************************************************************* |
631 | * | |
632 | * FUNCTION: acpi_ut_valid_acpi_char | |
633 | * | |
ba494bee BM |
634 | * PARAMETERS: char - The character to be examined |
635 | * position - Byte position (0-3) | |
793c2388 BM |
636 | * |
637 | * RETURN: TRUE if the character is valid, FALSE otherwise | |
638 | * | |
639 | * DESCRIPTION: Check for a valid ACPI character. Must be one of: | |
640 | * 1) Upper case alpha | |
641 | * 2) numeric | |
642 | * 3) underscore | |
643 | * | |
644 | * We allow a '!' as the last character because of the ASF! table | |
645 | * | |
646 | ******************************************************************************/ | |
647 | ||
67a119f9 | 648 | u8 acpi_ut_valid_acpi_char(char character, u32 position) |
793c2388 BM |
649 | { |
650 | ||
651 | if (!((character >= 'A' && character <= 'Z') || | |
652 | (character >= '0' && character <= '9') || (character == '_'))) { | |
653 | ||
654 | /* Allow a '!' in the last position */ | |
655 | ||
656 | if (character == '!' && position == 3) { | |
657 | return (TRUE); | |
658 | } | |
659 | ||
660 | return (FALSE); | |
661 | } | |
662 | ||
663 | return (TRUE); | |
664 | } | |
665 | ||
1da177e4 LT |
666 | /******************************************************************************* |
667 | * | |
668 | * FUNCTION: acpi_ut_valid_acpi_name | |
669 | * | |
ba494bee | 670 | * PARAMETERS: name - The name to be examined |
1da177e4 | 671 | * |
44f6c012 | 672 | * RETURN: TRUE if the name is valid, FALSE otherwise |
1da177e4 | 673 | * |
73a3090a | 674 | * DESCRIPTION: Check for a valid ACPI name. Each character must be one of: |
1da177e4 LT |
675 | * 1) Upper case alpha |
676 | * 2) numeric | |
677 | * 3) underscore | |
678 | * | |
679 | ******************************************************************************/ | |
680 | ||
4be44fcd | 681 | u8 acpi_ut_valid_acpi_name(u32 name) |
1da177e4 | 682 | { |
67a119f9 | 683 | u32 i; |
1da177e4 | 684 | |
4be44fcd | 685 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
686 | |
687 | for (i = 0; i < ACPI_NAME_SIZE; i++) { | |
793c2388 BM |
688 | if (!acpi_ut_valid_acpi_char |
689 | ((ACPI_CAST_PTR(char, &name))[i], i)) { | |
1da177e4 LT |
690 | return (FALSE); |
691 | } | |
692 | } | |
693 | ||
694 | return (TRUE); | |
695 | } | |
696 | ||
1da177e4 LT |
697 | /******************************************************************************* |
698 | * | |
793c2388 | 699 | * FUNCTION: acpi_ut_repair_name |
1da177e4 | 700 | * |
ba494bee | 701 | * PARAMETERS: name - The ACPI name to be repaired |
1da177e4 | 702 | * |
793c2388 | 703 | * RETURN: Repaired version of the name |
1da177e4 | 704 | * |
793c2388 | 705 | * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and |
6d33b6be LZ |
706 | * return the new name. NOTE: the Name parameter must reside in |
707 | * read/write memory, cannot be a const. | |
708 | * | |
709 | * An ACPI Name must consist of valid ACPI characters. We will repair the name | |
710 | * if necessary because we don't want to abort because of this, but we want | |
711 | * all namespace names to be printable. A warning message is appropriate. | |
712 | * | |
713 | * This issue came up because there are in fact machines that exhibit | |
714 | * this problem, and we want to be able to enable ACPI support for them, | |
715 | * even though there are a few bad names. | |
1da177e4 LT |
716 | * |
717 | ******************************************************************************/ | |
718 | ||
45dcd315 | 719 | void acpi_ut_repair_name(char *name) |
1da177e4 | 720 | { |
45dcd315 BM |
721 | u32 i; |
722 | u8 found_bad_char = FALSE; | |
00eb3255 | 723 | u32 original_name; |
45dcd315 BM |
724 | |
725 | ACPI_FUNCTION_NAME(ut_repair_name); | |
726 | ||
00eb3255 BM |
727 | ACPI_MOVE_NAME(&original_name, name); |
728 | ||
45dcd315 | 729 | /* Check each character in the name */ |
1da177e4 | 730 | |
793c2388 | 731 | for (i = 0; i < ACPI_NAME_SIZE; i++) { |
45dcd315 BM |
732 | if (acpi_ut_valid_acpi_char(name[i], i)) { |
733 | continue; | |
734 | } | |
793c2388 BM |
735 | |
736 | /* | |
737 | * Replace a bad character with something printable, yet technically | |
738 | * still invalid. This prevents any collisions with existing "good" | |
739 | * names in the namespace. | |
740 | */ | |
45dcd315 BM |
741 | name[i] = '*'; |
742 | found_bad_char = TRUE; | |
793c2388 | 743 | } |
1da177e4 | 744 | |
45dcd315 BM |
745 | if (found_bad_char) { |
746 | ||
747 | /* Report warning only if in strict mode or debug mode */ | |
748 | ||
749 | if (!acpi_gbl_enable_interpreter_slack) { | |
750 | ACPI_WARNING((AE_INFO, | |
751 | "Found bad character(s) in name, repaired: [%4.4s]\n", | |
752 | name)); | |
753 | } else { | |
754 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
755 | "Found bad character(s) in name, repaired: [%4.4s]\n", | |
756 | name)); | |
757 | } | |
758 | } | |
1da177e4 LT |
759 | } |
760 | ||
1da177e4 LT |
761 | /******************************************************************************* |
762 | * | |
763 | * FUNCTION: acpi_ut_strtoul64 | |
764 | * | |
ba494bee BM |
765 | * PARAMETERS: string - Null terminated string |
766 | * base - Radix of the string: 16 or ACPI_ANY_BASE; | |
4119532c | 767 | * ACPI_ANY_BASE means 'in behalf of to_integer' |
1da177e4 LT |
768 | * ret_integer - Where the converted integer is returned |
769 | * | |
770 | * RETURN: Status and Converted value | |
771 | * | |
f6dd9221 BM |
772 | * DESCRIPTION: Convert a string into an unsigned value. Performs either a |
773 | * 32-bit or 64-bit conversion, depending on the current mode | |
774 | * of the interpreter. | |
1da177e4 LT |
775 | * NOTE: Does not support Octal strings, not needed. |
776 | * | |
777 | ******************************************************************************/ | |
778 | ||
6d33b6be | 779 | acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) |
1da177e4 | 780 | { |
4be44fcd | 781 | u32 this_digit = 0; |
5df7e6cb BM |
782 | u64 return_value = 0; |
783 | u64 quotient; | |
784 | u64 dividend; | |
4119532c BM |
785 | u32 to_integer_op = (base == ACPI_ANY_BASE); |
786 | u32 mode32 = (acpi_gbl_integer_byte_width == 4); | |
787 | u8 valid_digits = 0; | |
788 | u8 sign_of0x = 0; | |
789 | u8 term = 0; | |
1da177e4 | 790 | |
f6dd9221 | 791 | ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); |
1da177e4 | 792 | |
1da177e4 LT |
793 | switch (base) { |
794 | case ACPI_ANY_BASE: | |
1da177e4 LT |
795 | case 16: |
796 | break; | |
797 | ||
798 | default: | |
799 | /* Invalid Base */ | |
4be44fcd | 800 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
1da177e4 LT |
801 | } |
802 | ||
4119532c BM |
803 | if (!string) { |
804 | goto error_exit; | |
805 | } | |
806 | ||
1da177e4 LT |
807 | /* Skip over any white space in the buffer */ |
808 | ||
4119532c | 809 | while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) { |
1da177e4 LT |
810 | string++; |
811 | } | |
812 | ||
4119532c BM |
813 | if (to_integer_op) { |
814 | /* | |
ba494bee | 815 | * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'. |
4119532c BM |
816 | * We need to determine if it is decimal or hexadecimal. |
817 | */ | |
4be44fcd | 818 | if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { |
4119532c | 819 | sign_of0x = 1; |
1da177e4 | 820 | base = 16; |
4119532c BM |
821 | |
822 | /* Skip over the leading '0x' */ | |
1da177e4 | 823 | string += 2; |
4be44fcd | 824 | } else { |
1da177e4 LT |
825 | base = 10; |
826 | } | |
827 | } | |
828 | ||
4119532c BM |
829 | /* Any string left? Check that '0x' is not followed by white space. */ |
830 | ||
831 | if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') { | |
832 | if (to_integer_op) { | |
833 | goto error_exit; | |
834 | } else { | |
835 | goto all_done; | |
836 | } | |
1da177e4 LT |
837 | } |
838 | ||
f6dd9221 BM |
839 | /* |
840 | * Perform a 32-bit or 64-bit conversion, depending upon the current | |
841 | * execution mode of the interpreter | |
842 | */ | |
4119532c | 843 | dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; |
1da177e4 | 844 | |
f6dd9221 | 845 | /* Main loop: convert the string to a 32- or 64-bit integer */ |
1da177e4 LT |
846 | |
847 | while (*string) { | |
4be44fcd | 848 | if (ACPI_IS_DIGIT(*string)) { |
52fc0b02 | 849 | |
1da177e4 LT |
850 | /* Convert ASCII 0-9 to Decimal value */ |
851 | ||
6d33b6be | 852 | this_digit = ((u8)*string) - '0'; |
4119532c | 853 | } else if (base == 10) { |
1da177e4 | 854 | |
4119532c | 855 | /* Digit is out of range; possible in to_integer case only */ |
1da177e4 | 856 | |
4119532c BM |
857 | term = 1; |
858 | } else { | |
6d33b6be | 859 | this_digit = (u8)ACPI_TOUPPER(*string); |
4be44fcd | 860 | if (ACPI_IS_XDIGIT((char)this_digit)) { |
52fc0b02 | 861 | |
1da177e4 LT |
862 | /* Convert ASCII Hex char to value */ |
863 | ||
864 | this_digit = this_digit - 'A' + 10; | |
4be44fcd | 865 | } else { |
4119532c BM |
866 | term = 1; |
867 | } | |
868 | } | |
869 | ||
870 | if (term) { | |
871 | if (to_integer_op) { | |
872 | goto error_exit; | |
873 | } else { | |
1da177e4 LT |
874 | break; |
875 | } | |
4119532c BM |
876 | } else if ((valid_digits == 0) && (this_digit == 0) |
877 | && !sign_of0x) { | |
878 | ||
879 | /* Skip zeros */ | |
880 | string++; | |
881 | continue; | |
882 | } | |
883 | ||
884 | valid_digits++; | |
885 | ||
6d33b6be LZ |
886 | if (sign_of0x |
887 | && ((valid_digits > 16) | |
888 | || ((valid_digits > 8) && mode32))) { | |
4119532c BM |
889 | /* |
890 | * This is to_integer operation case. | |
891 | * No any restrictions for string-to-integer conversion, | |
892 | * see ACPI spec. | |
893 | */ | |
894 | goto error_exit; | |
1da177e4 LT |
895 | } |
896 | ||
897 | /* Divide the digit into the correct position */ | |
898 | ||
6d33b6be | 899 | (void)acpi_ut_short_divide((dividend - (u64)this_digit), |
5df7e6cb | 900 | base, "ient, NULL); |
4119532c | 901 | |
1da177e4 | 902 | if (return_value > quotient) { |
4119532c BM |
903 | if (to_integer_op) { |
904 | goto error_exit; | |
905 | } else { | |
906 | break; | |
907 | } | |
1da177e4 LT |
908 | } |
909 | ||
910 | return_value *= base; | |
911 | return_value += this_digit; | |
912 | string++; | |
913 | } | |
914 | ||
915 | /* All done, normal exit */ | |
916 | ||
4119532c BM |
917 | all_done: |
918 | ||
f6dd9221 BM |
919 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", |
920 | ACPI_FORMAT_UINT64(return_value))); | |
921 | ||
1da177e4 | 922 | *ret_integer = return_value; |
4be44fcd | 923 | return_ACPI_STATUS(AE_OK); |
1da177e4 | 924 | |
4be44fcd | 925 | error_exit: |
1da177e4 LT |
926 | /* Base was set/validated above */ |
927 | ||
928 | if (base == 10) { | |
4be44fcd LB |
929 | return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); |
930 | } else { | |
931 | return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); | |
1da177e4 LT |
932 | } |
933 | } | |
934 | ||
1da177e4 LT |
935 | /******************************************************************************* |
936 | * | |
937 | * FUNCTION: acpi_ut_create_update_state_and_push | |
938 | * | |
ba494bee BM |
939 | * PARAMETERS: object - Object to be added to the new state |
940 | * action - Increment/Decrement | |
1da177e4 LT |
941 | * state_list - List the state will be added to |
942 | * | |
44f6c012 | 943 | * RETURN: Status |
1da177e4 LT |
944 | * |
945 | * DESCRIPTION: Create a new state and push it | |
946 | * | |
947 | ******************************************************************************/ | |
948 | ||
949 | acpi_status | |
4be44fcd LB |
950 | acpi_ut_create_update_state_and_push(union acpi_operand_object *object, |
951 | u16 action, | |
952 | union acpi_generic_state **state_list) | |
1da177e4 | 953 | { |
4be44fcd | 954 | union acpi_generic_state *state; |
1da177e4 | 955 | |
4be44fcd | 956 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
957 | |
958 | /* Ignore null objects; these are expected */ | |
959 | ||
960 | if (!object) { | |
961 | return (AE_OK); | |
962 | } | |
963 | ||
4be44fcd | 964 | state = acpi_ut_create_update_state(object, action); |
1da177e4 LT |
965 | if (!state) { |
966 | return (AE_NO_MEMORY); | |
967 | } | |
968 | ||
4be44fcd | 969 | acpi_ut_push_generic_state(state_list, state); |
1da177e4 LT |
970 | return (AE_OK); |
971 | } | |
972 | ||
1da177e4 LT |
973 | /******************************************************************************* |
974 | * | |
975 | * FUNCTION: acpi_ut_walk_package_tree | |
976 | * | |
44f6c012 RM |
977 | * PARAMETERS: source_object - The package to walk |
978 | * target_object - Target object (if package is being copied) | |
979 | * walk_callback - Called once for each package element | |
ba494bee | 980 | * context - Passed to the callback function |
1da177e4 LT |
981 | * |
982 | * RETURN: Status | |
983 | * | |
984 | * DESCRIPTION: Walk through a package | |
985 | * | |
986 | ******************************************************************************/ | |
987 | ||
988 | acpi_status | |
6d33b6be | 989 | acpi_ut_walk_package_tree(union acpi_operand_object *source_object, |
4be44fcd LB |
990 | void *target_object, |
991 | acpi_pkg_callback walk_callback, void *context) | |
1da177e4 | 992 | { |
4be44fcd LB |
993 | acpi_status status = AE_OK; |
994 | union acpi_generic_state *state_list = NULL; | |
995 | union acpi_generic_state *state; | |
996 | u32 this_index; | |
997 | union acpi_operand_object *this_source_obj; | |
1da177e4 | 998 | |
b229cf92 | 999 | ACPI_FUNCTION_TRACE(ut_walk_package_tree); |
1da177e4 | 1000 | |
4be44fcd | 1001 | state = acpi_ut_create_pkg_state(source_object, target_object, 0); |
1da177e4 | 1002 | if (!state) { |
4be44fcd | 1003 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
1004 | } |
1005 | ||
1006 | while (state) { | |
52fc0b02 | 1007 | |
1da177e4 LT |
1008 | /* Get one element of the package */ |
1009 | ||
4be44fcd | 1010 | this_index = state->pkg.index; |
1da177e4 | 1011 | this_source_obj = (union acpi_operand_object *) |
4be44fcd | 1012 | state->pkg.source_object->package.elements[this_index]; |
1da177e4 LT |
1013 | |
1014 | /* | |
1015 | * Check for: | |
73a3090a | 1016 | * 1) An uninitialized package element. It is completely |
1da177e4 LT |
1017 | * legal to declare a package and leave it uninitialized |
1018 | * 2) Not an internal object - can be a namespace node instead | |
73a3090a | 1019 | * 3) Any type other than a package. Packages are handled in else |
1da177e4 LT |
1020 | * case below. |
1021 | */ | |
1022 | if ((!this_source_obj) || | |
4be44fcd LB |
1023 | (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) != |
1024 | ACPI_DESC_TYPE_OPERAND) | |
3371c19c | 1025 | || (this_source_obj->common.type != ACPI_TYPE_PACKAGE)) { |
4be44fcd LB |
1026 | status = |
1027 | walk_callback(ACPI_COPY_TYPE_SIMPLE, | |
1028 | this_source_obj, state, context); | |
1029 | if (ACPI_FAILURE(status)) { | |
1030 | return_ACPI_STATUS(status); | |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | state->pkg.index++; | |
4be44fcd LB |
1034 | while (state->pkg.index >= |
1035 | state->pkg.source_object->package.count) { | |
1da177e4 LT |
1036 | /* |
1037 | * We've handled all of the objects at this level, This means | |
73a3090a | 1038 | * that we have just completed a package. That package may |
1da177e4 LT |
1039 | * have contained one or more packages itself. |
1040 | * | |
1041 | * Delete this state and pop the previous state (package). | |
1042 | */ | |
4be44fcd LB |
1043 | acpi_ut_delete_generic_state(state); |
1044 | state = acpi_ut_pop_generic_state(&state_list); | |
1da177e4 LT |
1045 | |
1046 | /* Finished when there are no more states */ | |
1047 | ||
1048 | if (!state) { | |
1049 | /* | |
1050 | * We have handled all of the objects in the top level | |
1051 | * package just add the length of the package objects | |
1052 | * and exit | |
1053 | */ | |
4be44fcd | 1054 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
1055 | } |
1056 | ||
1057 | /* | |
1058 | * Go back up a level and move the index past the just | |
1059 | * completed package object. | |
1060 | */ | |
1061 | state->pkg.index++; | |
1062 | } | |
4be44fcd | 1063 | } else { |
1da177e4 LT |
1064 | /* This is a subobject of type package */ |
1065 | ||
4be44fcd LB |
1066 | status = |
1067 | walk_callback(ACPI_COPY_TYPE_PACKAGE, | |
1068 | this_source_obj, state, context); | |
1069 | if (ACPI_FAILURE(status)) { | |
1070 | return_ACPI_STATUS(status); | |
1da177e4 LT |
1071 | } |
1072 | ||
1073 | /* | |
1074 | * Push the current state and create a new one | |
1075 | * The callback above returned a new target package object. | |
1076 | */ | |
4be44fcd LB |
1077 | acpi_ut_push_generic_state(&state_list, state); |
1078 | state = acpi_ut_create_pkg_state(this_source_obj, | |
1079 | state->pkg. | |
1080 | this_target_obj, 0); | |
1da177e4 | 1081 | if (!state) { |
cf058bd1 LM |
1082 | |
1083 | /* Free any stacked Update State objects */ | |
1084 | ||
1085 | while (state_list) { | |
1086 | state = | |
1087 | acpi_ut_pop_generic_state | |
1088 | (&state_list); | |
1089 | acpi_ut_delete_generic_state(state); | |
1090 | } | |
4be44fcd | 1091 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
1092 | } |
1093 | } | |
1094 | } | |
1095 | ||
1096 | /* We should never get here */ | |
1097 | ||
4be44fcd | 1098 | return_ACPI_STATUS(AE_AML_INTERNAL); |
1da177e4 | 1099 | } |