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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Module Name: utmisc - common utility procedures | |
4 | * | |
5 | ******************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, 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 | ||
be63c925 TR |
44 | #include <linux/module.h> |
45 | ||
1da177e4 | 46 | #include <acpi/acpi.h> |
50df4d8b | 47 | #include <acpi/accommon.h> |
1da177e4 LT |
48 | #include <acpi/acnamesp.h> |
49 | ||
1da177e4 | 50 | #define _COMPONENT ACPI_UTILITIES |
4be44fcd | 51 | ACPI_MODULE_NAME("utmisc") |
44f6c012 | 52 | |
84fb2c97 BM |
53 | /******************************************************************************* |
54 | * | |
55 | * FUNCTION: acpi_ut_validate_exception | |
56 | * | |
57 | * PARAMETERS: Status - The acpi_status code to be formatted | |
58 | * | |
59 | * RETURN: A string containing the exception text. NULL if exception is | |
60 | * not valid. | |
61 | * | |
62 | * DESCRIPTION: This function validates and translates an ACPI exception into | |
63 | * an ASCII string. | |
64 | * | |
65 | ******************************************************************************/ | |
66 | const char *acpi_ut_validate_exception(acpi_status status) | |
67 | { | |
11f2a61a | 68 | u32 sub_status; |
84fb2c97 BM |
69 | const char *exception = NULL; |
70 | ||
71 | ACPI_FUNCTION_ENTRY(); | |
72 | ||
73 | /* | |
74 | * Status is composed of two parts, a "type" and an actual code | |
75 | */ | |
76 | sub_status = (status & ~AE_CODE_MASK); | |
77 | ||
78 | switch (status & AE_CODE_MASK) { | |
79 | case AE_CODE_ENVIRONMENTAL: | |
80 | ||
81 | if (sub_status <= AE_CODE_ENV_MAX) { | |
82 | exception = acpi_gbl_exception_names_env[sub_status]; | |
83 | } | |
84 | break; | |
85 | ||
86 | case AE_CODE_PROGRAMMER: | |
87 | ||
88 | if (sub_status <= AE_CODE_PGM_MAX) { | |
11f2a61a | 89 | exception = acpi_gbl_exception_names_pgm[sub_status]; |
84fb2c97 BM |
90 | } |
91 | break; | |
92 | ||
93 | case AE_CODE_ACPI_TABLES: | |
94 | ||
95 | if (sub_status <= AE_CODE_TBL_MAX) { | |
11f2a61a | 96 | exception = acpi_gbl_exception_names_tbl[sub_status]; |
84fb2c97 BM |
97 | } |
98 | break; | |
99 | ||
100 | case AE_CODE_AML: | |
101 | ||
102 | if (sub_status <= AE_CODE_AML_MAX) { | |
11f2a61a | 103 | exception = acpi_gbl_exception_names_aml[sub_status]; |
84fb2c97 BM |
104 | } |
105 | break; | |
106 | ||
107 | case AE_CODE_CONTROL: | |
108 | ||
109 | if (sub_status <= AE_CODE_CTRL_MAX) { | |
11f2a61a | 110 | exception = acpi_gbl_exception_names_ctrl[sub_status]; |
84fb2c97 BM |
111 | } |
112 | break; | |
113 | ||
114 | default: | |
115 | break; | |
116 | } | |
117 | ||
118 | return (ACPI_CAST_PTR(const char, exception)); | |
119 | } | |
120 | ||
793c2388 BM |
121 | /******************************************************************************* |
122 | * | |
123 | * FUNCTION: acpi_ut_is_aml_table | |
124 | * | |
125 | * PARAMETERS: Table - An ACPI table | |
126 | * | |
127 | * RETURN: TRUE if table contains executable AML; FALSE otherwise | |
128 | * | |
129 | * DESCRIPTION: Check ACPI Signature for a table that contains AML code. | |
130 | * Currently, these are DSDT,SSDT,PSDT. All other table types are | |
131 | * data tables that do not contain AML code. | |
132 | * | |
133 | ******************************************************************************/ | |
84fb2c97 | 134 | |
793c2388 BM |
135 | u8 acpi_ut_is_aml_table(struct acpi_table_header *table) |
136 | { | |
137 | ||
f6dd9221 | 138 | /* These are the only tables that contain executable AML */ |
793c2388 | 139 | |
f3d2e786 BM |
140 | if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) || |
141 | ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) || | |
142 | ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) { | |
793c2388 BM |
143 | return (TRUE); |
144 | } | |
145 | ||
146 | return (FALSE); | |
147 | } | |
148 | ||
f9f4601f RM |
149 | /******************************************************************************* |
150 | * | |
151 | * FUNCTION: acpi_ut_allocate_owner_id | |
152 | * | |
153 | * PARAMETERS: owner_id - Where the new owner ID is returned | |
154 | * | |
0c9938cc RM |
155 | * RETURN: Status |
156 | * | |
157 | * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to | |
158 | * track objects created by the table or method, to be deleted | |
159 | * when the method exits or the table is unloaded. | |
f9f4601f RM |
160 | * |
161 | ******************************************************************************/ | |
793c2388 | 162 | |
4be44fcd | 163 | acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) |
f9f4601f | 164 | { |
67a119f9 BM |
165 | u32 i; |
166 | u32 j; | |
167 | u32 k; | |
4be44fcd | 168 | acpi_status status; |
f9f4601f | 169 | |
b229cf92 | 170 | ACPI_FUNCTION_TRACE(ut_allocate_owner_id); |
f9f4601f | 171 | |
aff8c277 RM |
172 | /* Guard against multiple allocations of ID to the same location */ |
173 | ||
174 | if (*owner_id) { | |
b8e4d893 BM |
175 | ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists", |
176 | *owner_id)); | |
aff8c277 RM |
177 | return_ACPI_STATUS(AE_ALREADY_EXISTS); |
178 | } | |
179 | ||
0c9938cc RM |
180 | /* Mutex for the global ID mask */ |
181 | ||
4be44fcd LB |
182 | status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); |
183 | if (ACPI_FAILURE(status)) { | |
184 | return_ACPI_STATUS(status); | |
f9f4601f RM |
185 | } |
186 | ||
c51a4de8 BM |
187 | /* |
188 | * Find a free owner ID, cycle through all possible IDs on repeated | |
28f55ebc BM |
189 | * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have |
190 | * to be scanned twice. | |
c51a4de8 | 191 | */ |
28f55ebc BM |
192 | for (i = 0, j = acpi_gbl_last_owner_id_index; |
193 | i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) { | |
194 | if (j >= ACPI_NUM_OWNERID_MASKS) { | |
195 | j = 0; /* Wraparound to start of mask array */ | |
c51a4de8 BM |
196 | } |
197 | ||
28f55ebc BM |
198 | for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) { |
199 | if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) { | |
52fc0b02 | 200 | |
28f55ebc BM |
201 | /* There are no free IDs in this mask */ |
202 | ||
203 | break; | |
204 | } | |
205 | ||
206 | if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) { | |
207 | /* | |
208 | * Found a free ID. The actual ID is the bit index plus one, | |
209 | * making zero an invalid Owner ID. Save this as the last ID | |
210 | * allocated and update the global ID mask. | |
211 | */ | |
212 | acpi_gbl_owner_id_mask[j] |= (1 << k); | |
213 | ||
214 | acpi_gbl_last_owner_id_index = (u8) j; | |
215 | acpi_gbl_next_owner_id_offset = (u8) (k + 1); | |
216 | ||
217 | /* | |
218 | * Construct encoded ID from the index and bit position | |
219 | * | |
220 | * Note: Last [j].k (bit 255) is never used and is marked | |
221 | * permanently allocated (prevents +1 overflow) | |
222 | */ | |
223 | *owner_id = | |
224 | (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j)); | |
225 | ||
226 | ACPI_DEBUG_PRINT((ACPI_DB_VALUES, | |
b229cf92 | 227 | "Allocated OwnerId: %2.2X\n", |
28f55ebc BM |
228 | (unsigned int)*owner_id)); |
229 | goto exit; | |
230 | } | |
f9f4601f | 231 | } |
28f55ebc BM |
232 | |
233 | acpi_gbl_next_owner_id_offset = 0; | |
f9f4601f RM |
234 | } |
235 | ||
236 | /* | |
c51a4de8 | 237 | * All owner_ids have been allocated. This typically should |
f9f4601f RM |
238 | * not happen since the IDs are reused after deallocation. The IDs are |
239 | * allocated upon table load (one per table) and method execution, and | |
240 | * they are released when a table is unloaded or a method completes | |
241 | * execution. | |
c51a4de8 BM |
242 | * |
243 | * If this error happens, there may be very deep nesting of invoked control | |
244 | * methods, or there may be a bug where the IDs are not released. | |
f9f4601f RM |
245 | */ |
246 | status = AE_OWNER_ID_LIMIT; | |
b8e4d893 | 247 | ACPI_ERROR((AE_INFO, |
b229cf92 | 248 | "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT")); |
f9f4601f | 249 | |
4be44fcd LB |
250 | exit: |
251 | (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); | |
252 | return_ACPI_STATUS(status); | |
f9f4601f RM |
253 | } |
254 | ||
f9f4601f RM |
255 | /******************************************************************************* |
256 | * | |
257 | * FUNCTION: acpi_ut_release_owner_id | |
258 | * | |
0c9938cc | 259 | * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD |
f9f4601f | 260 | * |
0c9938cc RM |
261 | * RETURN: None. No error is returned because we are either exiting a |
262 | * control method or unloading a table. Either way, we would | |
263 | * ignore any error anyway. | |
264 | * | |
28f55ebc | 265 | * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255 |
f9f4601f RM |
266 | * |
267 | ******************************************************************************/ | |
268 | ||
4be44fcd | 269 | void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) |
f9f4601f | 270 | { |
4be44fcd LB |
271 | acpi_owner_id owner_id = *owner_id_ptr; |
272 | acpi_status status; | |
67a119f9 | 273 | u32 index; |
28f55ebc | 274 | u32 bit; |
f9f4601f | 275 | |
b229cf92 | 276 | ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id); |
f9f4601f | 277 | |
0c9938cc RM |
278 | /* Always clear the input owner_id (zero is an invalid ID) */ |
279 | ||
280 | *owner_id_ptr = 0; | |
281 | ||
282 | /* Zero is not a valid owner_iD */ | |
283 | ||
defba1d8 | 284 | if (owner_id == 0) { |
b229cf92 | 285 | ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id)); |
0c9938cc RM |
286 | return_VOID; |
287 | } | |
288 | ||
289 | /* Mutex for the global ID mask */ | |
290 | ||
4be44fcd LB |
291 | status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); |
292 | if (ACPI_FAILURE(status)) { | |
0c9938cc | 293 | return_VOID; |
f9f4601f RM |
294 | } |
295 | ||
aff8c277 RM |
296 | /* Normalize the ID to zero */ |
297 | ||
298 | owner_id--; | |
0c9938cc | 299 | |
28f55ebc BM |
300 | /* Decode ID to index/offset pair */ |
301 | ||
302 | index = ACPI_DIV_32(owner_id); | |
303 | bit = 1 << ACPI_MOD_32(owner_id); | |
304 | ||
0c9938cc | 305 | /* Free the owner ID only if it is valid */ |
f9f4601f | 306 | |
28f55ebc BM |
307 | if (acpi_gbl_owner_id_mask[index] & bit) { |
308 | acpi_gbl_owner_id_mask[index] ^= bit; | |
309 | } else { | |
b8e4d893 | 310 | ACPI_ERROR((AE_INFO, |
b229cf92 | 311 | "Release of non-allocated OwnerId: %2.2X", |
b8e4d893 | 312 | owner_id + 1)); |
f9f4601f | 313 | } |
f9f4601f | 314 | |
4be44fcd | 315 | (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); |
0c9938cc | 316 | return_VOID; |
f9f4601f RM |
317 | } |
318 | ||
44f6c012 RM |
319 | /******************************************************************************* |
320 | * | |
321 | * FUNCTION: acpi_ut_strupr (strupr) | |
322 | * | |
323 | * PARAMETERS: src_string - The source string to convert | |
324 | * | |
0c9938cc | 325 | * RETURN: None |
44f6c012 RM |
326 | * |
327 | * DESCRIPTION: Convert string to uppercase | |
328 | * | |
329 | * NOTE: This is not a POSIX function, so it appears here, not in utclib.c | |
330 | * | |
331 | ******************************************************************************/ | |
332 | ||
4be44fcd | 333 | void acpi_ut_strupr(char *src_string) |
44f6c012 | 334 | { |
4be44fcd | 335 | char *string; |
44f6c012 | 336 | |
4be44fcd | 337 | ACPI_FUNCTION_ENTRY(); |
44f6c012 | 338 | |
73459f73 | 339 | if (!src_string) { |
0c9938cc | 340 | return; |
73459f73 RM |
341 | } |
342 | ||
44f6c012 RM |
343 | /* Walk entire string, uppercasing the letters */ |
344 | ||
345 | for (string = src_string; *string; string++) { | |
4be44fcd | 346 | *string = (char)ACPI_TOUPPER(*string); |
44f6c012 RM |
347 | } |
348 | ||
0c9938cc | 349 | return; |
44f6c012 RM |
350 | } |
351 | ||
1da177e4 LT |
352 | /******************************************************************************* |
353 | * | |
354 | * FUNCTION: acpi_ut_print_string | |
355 | * | |
356 | * PARAMETERS: String - Null terminated ASCII string | |
44f6c012 | 357 | * max_length - Maximum output length |
1da177e4 LT |
358 | * |
359 | * RETURN: None | |
360 | * | |
361 | * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape | |
362 | * sequences. | |
363 | * | |
364 | ******************************************************************************/ | |
365 | ||
4be44fcd | 366 | void acpi_ut_print_string(char *string, u8 max_length) |
1da177e4 | 367 | { |
4be44fcd | 368 | u32 i; |
1da177e4 LT |
369 | |
370 | if (!string) { | |
4be44fcd | 371 | acpi_os_printf("<\"NULL STRING PTR\">"); |
1da177e4 LT |
372 | return; |
373 | } | |
374 | ||
4be44fcd | 375 | acpi_os_printf("\""); |
1da177e4 | 376 | for (i = 0; string[i] && (i < max_length); i++) { |
52fc0b02 | 377 | |
1da177e4 LT |
378 | /* Escape sequences */ |
379 | ||
380 | switch (string[i]) { | |
381 | case 0x07: | |
4be44fcd | 382 | acpi_os_printf("\\a"); /* BELL */ |
1da177e4 LT |
383 | break; |
384 | ||
385 | case 0x08: | |
4be44fcd | 386 | acpi_os_printf("\\b"); /* BACKSPACE */ |
1da177e4 LT |
387 | break; |
388 | ||
389 | case 0x0C: | |
4be44fcd | 390 | acpi_os_printf("\\f"); /* FORMFEED */ |
1da177e4 LT |
391 | break; |
392 | ||
393 | case 0x0A: | |
4be44fcd | 394 | acpi_os_printf("\\n"); /* LINEFEED */ |
1da177e4 LT |
395 | break; |
396 | ||
397 | case 0x0D: | |
4be44fcd | 398 | acpi_os_printf("\\r"); /* CARRIAGE RETURN */ |
1da177e4 LT |
399 | break; |
400 | ||
401 | case 0x09: | |
4be44fcd | 402 | acpi_os_printf("\\t"); /* HORIZONTAL TAB */ |
1da177e4 LT |
403 | break; |
404 | ||
405 | case 0x0B: | |
4be44fcd | 406 | acpi_os_printf("\\v"); /* VERTICAL TAB */ |
1da177e4 LT |
407 | break; |
408 | ||
4be44fcd LB |
409 | case '\'': /* Single Quote */ |
410 | case '\"': /* Double Quote */ | |
411 | case '\\': /* Backslash */ | |
412 | acpi_os_printf("\\%c", (int)string[i]); | |
1da177e4 LT |
413 | break; |
414 | ||
415 | default: | |
416 | ||
417 | /* Check for printable character or hex escape */ | |
418 | ||
4be44fcd | 419 | if (ACPI_IS_PRINT(string[i])) { |
1da177e4 LT |
420 | /* This is a normal character */ |
421 | ||
4be44fcd LB |
422 | acpi_os_printf("%c", (int)string[i]); |
423 | } else { | |
1da177e4 LT |
424 | /* All others will be Hex escapes */ |
425 | ||
4be44fcd | 426 | acpi_os_printf("\\x%2.2X", (s32) string[i]); |
1da177e4 LT |
427 | } |
428 | break; | |
429 | } | |
430 | } | |
4be44fcd | 431 | acpi_os_printf("\""); |
1da177e4 LT |
432 | |
433 | if (i == max_length && string[i]) { | |
4be44fcd | 434 | acpi_os_printf("..."); |
1da177e4 LT |
435 | } |
436 | } | |
437 | ||
1da177e4 LT |
438 | /******************************************************************************* |
439 | * | |
440 | * FUNCTION: acpi_ut_dword_byte_swap | |
441 | * | |
442 | * PARAMETERS: Value - Value to be converted | |
443 | * | |
44f6c012 RM |
444 | * RETURN: u32 integer with bytes swapped |
445 | * | |
1da177e4 LT |
446 | * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes) |
447 | * | |
448 | ******************************************************************************/ | |
449 | ||
4be44fcd | 450 | u32 acpi_ut_dword_byte_swap(u32 value) |
1da177e4 LT |
451 | { |
452 | union { | |
4be44fcd LB |
453 | u32 value; |
454 | u8 bytes[4]; | |
1da177e4 | 455 | } out; |
1da177e4 | 456 | union { |
4be44fcd LB |
457 | u32 value; |
458 | u8 bytes[4]; | |
1da177e4 LT |
459 | } in; |
460 | ||
4be44fcd | 461 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
462 | |
463 | in.value = value; | |
464 | ||
465 | out.bytes[0] = in.bytes[3]; | |
466 | out.bytes[1] = in.bytes[2]; | |
467 | out.bytes[2] = in.bytes[1]; | |
468 | out.bytes[3] = in.bytes[0]; | |
469 | ||
470 | return (out.value); | |
471 | } | |
472 | ||
1da177e4 LT |
473 | /******************************************************************************* |
474 | * | |
475 | * FUNCTION: acpi_ut_set_integer_width | |
476 | * | |
477 | * PARAMETERS: Revision From DSDT header | |
478 | * | |
479 | * RETURN: None | |
480 | * | |
481 | * DESCRIPTION: Set the global integer bit width based upon the revision | |
482 | * of the DSDT. For Revision 1 and 0, Integers are 32 bits. | |
483 | * For Revision 2 and above, Integers are 64 bits. Yes, this | |
484 | * makes a difference. | |
485 | * | |
486 | ******************************************************************************/ | |
487 | ||
4be44fcd | 488 | void acpi_ut_set_integer_width(u8 revision) |
1da177e4 LT |
489 | { |
490 | ||
f3d2e786 | 491 | if (revision < 2) { |
f6dd9221 BM |
492 | |
493 | /* 32-bit case */ | |
494 | ||
1da177e4 LT |
495 | acpi_gbl_integer_bit_width = 32; |
496 | acpi_gbl_integer_nybble_width = 8; | |
497 | acpi_gbl_integer_byte_width = 4; | |
4be44fcd | 498 | } else { |
f6dd9221 BM |
499 | /* 64-bit case (ACPI 2.0+) */ |
500 | ||
1da177e4 LT |
501 | acpi_gbl_integer_bit_width = 64; |
502 | acpi_gbl_integer_nybble_width = 16; | |
503 | acpi_gbl_integer_byte_width = 8; | |
504 | } | |
505 | } | |
506 | ||
1da177e4 LT |
507 | #ifdef ACPI_DEBUG_OUTPUT |
508 | /******************************************************************************* | |
509 | * | |
510 | * FUNCTION: acpi_ut_display_init_pathname | |
511 | * | |
44f6c012 RM |
512 | * PARAMETERS: Type - Object type of the node |
513 | * obj_handle - Handle whose pathname will be displayed | |
1da177e4 LT |
514 | * Path - Additional path string to be appended. |
515 | * (NULL if no extra path) | |
516 | * | |
517 | * RETURN: acpi_status | |
518 | * | |
519 | * DESCRIPTION: Display full pathname of an object, DEBUG ONLY | |
520 | * | |
521 | ******************************************************************************/ | |
522 | ||
523 | void | |
4be44fcd LB |
524 | acpi_ut_display_init_pathname(u8 type, |
525 | struct acpi_namespace_node *obj_handle, | |
526 | char *path) | |
1da177e4 | 527 | { |
4be44fcd LB |
528 | acpi_status status; |
529 | struct acpi_buffer buffer; | |
1da177e4 | 530 | |
4be44fcd | 531 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
532 | |
533 | /* Only print the path if the appropriate debug level is enabled */ | |
534 | ||
535 | if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { | |
536 | return; | |
537 | } | |
538 | ||
539 | /* Get the full pathname to the node */ | |
540 | ||
541 | buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; | |
4be44fcd LB |
542 | status = acpi_ns_handle_to_pathname(obj_handle, &buffer); |
543 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
544 | return; |
545 | } | |
546 | ||
547 | /* Print what we're doing */ | |
548 | ||
549 | switch (type) { | |
550 | case ACPI_TYPE_METHOD: | |
4be44fcd | 551 | acpi_os_printf("Executing "); |
1da177e4 LT |
552 | break; |
553 | ||
554 | default: | |
4be44fcd | 555 | acpi_os_printf("Initializing "); |
1da177e4 LT |
556 | break; |
557 | } | |
558 | ||
559 | /* Print the object type and pathname */ | |
560 | ||
4be44fcd LB |
561 | acpi_os_printf("%-12s %s", |
562 | acpi_ut_get_type_name(type), (char *)buffer.pointer); | |
1da177e4 LT |
563 | |
564 | /* Extra path is used to append names like _STA, _INI, etc. */ | |
565 | ||
566 | if (path) { | |
4be44fcd | 567 | acpi_os_printf(".%s", path); |
1da177e4 | 568 | } |
4be44fcd | 569 | acpi_os_printf("\n"); |
1da177e4 | 570 | |
8313524a | 571 | ACPI_FREE(buffer.pointer); |
1da177e4 LT |
572 | } |
573 | #endif | |
574 | ||
793c2388 BM |
575 | /******************************************************************************* |
576 | * | |
577 | * FUNCTION: acpi_ut_valid_acpi_char | |
578 | * | |
579 | * PARAMETERS: Char - The character to be examined | |
f6dd9221 | 580 | * Position - Byte position (0-3) |
793c2388 BM |
581 | * |
582 | * RETURN: TRUE if the character is valid, FALSE otherwise | |
583 | * | |
584 | * DESCRIPTION: Check for a valid ACPI character. Must be one of: | |
585 | * 1) Upper case alpha | |
586 | * 2) numeric | |
587 | * 3) underscore | |
588 | * | |
589 | * We allow a '!' as the last character because of the ASF! table | |
590 | * | |
591 | ******************************************************************************/ | |
592 | ||
67a119f9 | 593 | u8 acpi_ut_valid_acpi_char(char character, u32 position) |
793c2388 BM |
594 | { |
595 | ||
596 | if (!((character >= 'A' && character <= 'Z') || | |
597 | (character >= '0' && character <= '9') || (character == '_'))) { | |
598 | ||
599 | /* Allow a '!' in the last position */ | |
600 | ||
601 | if (character == '!' && position == 3) { | |
602 | return (TRUE); | |
603 | } | |
604 | ||
605 | return (FALSE); | |
606 | } | |
607 | ||
608 | return (TRUE); | |
609 | } | |
610 | ||
1da177e4 LT |
611 | /******************************************************************************* |
612 | * | |
613 | * FUNCTION: acpi_ut_valid_acpi_name | |
614 | * | |
44f6c012 | 615 | * PARAMETERS: Name - The name to be examined |
1da177e4 | 616 | * |
44f6c012 | 617 | * RETURN: TRUE if the name is valid, FALSE otherwise |
1da177e4 LT |
618 | * |
619 | * DESCRIPTION: Check for a valid ACPI name. Each character must be one of: | |
620 | * 1) Upper case alpha | |
621 | * 2) numeric | |
622 | * 3) underscore | |
623 | * | |
624 | ******************************************************************************/ | |
625 | ||
4be44fcd | 626 | u8 acpi_ut_valid_acpi_name(u32 name) |
1da177e4 | 627 | { |
67a119f9 | 628 | u32 i; |
1da177e4 | 629 | |
4be44fcd | 630 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
631 | |
632 | for (i = 0; i < ACPI_NAME_SIZE; i++) { | |
793c2388 BM |
633 | if (!acpi_ut_valid_acpi_char |
634 | ((ACPI_CAST_PTR(char, &name))[i], i)) { | |
1da177e4 LT |
635 | return (FALSE); |
636 | } | |
637 | } | |
638 | ||
639 | return (TRUE); | |
640 | } | |
641 | ||
1da177e4 LT |
642 | /******************************************************************************* |
643 | * | |
793c2388 | 644 | * FUNCTION: acpi_ut_repair_name |
1da177e4 | 645 | * |
793c2388 | 646 | * PARAMETERS: Name - The ACPI name to be repaired |
1da177e4 | 647 | * |
793c2388 | 648 | * RETURN: Repaired version of the name |
1da177e4 | 649 | * |
793c2388 BM |
650 | * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and |
651 | * return the new name. | |
1da177e4 LT |
652 | * |
653 | ******************************************************************************/ | |
654 | ||
3d81b236 | 655 | acpi_name acpi_ut_repair_name(char *name) |
1da177e4 | 656 | { |
67a119f9 | 657 | u32 i; |
3d81b236 | 658 | char new_name[ACPI_NAME_SIZE]; |
1da177e4 | 659 | |
793c2388 | 660 | for (i = 0; i < ACPI_NAME_SIZE; i++) { |
3d81b236 | 661 | new_name[i] = name[i]; |
793c2388 BM |
662 | |
663 | /* | |
664 | * Replace a bad character with something printable, yet technically | |
665 | * still invalid. This prevents any collisions with existing "good" | |
666 | * names in the namespace. | |
667 | */ | |
3d81b236 | 668 | if (!acpi_ut_valid_acpi_char(name[i], i)) { |
793c2388 BM |
669 | new_name[i] = '*'; |
670 | } | |
671 | } | |
1da177e4 | 672 | |
3d81b236 | 673 | return (*(u32 *) new_name); |
1da177e4 LT |
674 | } |
675 | ||
1da177e4 LT |
676 | /******************************************************************************* |
677 | * | |
678 | * FUNCTION: acpi_ut_strtoul64 | |
679 | * | |
680 | * PARAMETERS: String - Null terminated string | |
4119532c BM |
681 | * Base - Radix of the string: 16 or ACPI_ANY_BASE; |
682 | * ACPI_ANY_BASE means 'in behalf of to_integer' | |
1da177e4 LT |
683 | * ret_integer - Where the converted integer is returned |
684 | * | |
685 | * RETURN: Status and Converted value | |
686 | * | |
f6dd9221 BM |
687 | * DESCRIPTION: Convert a string into an unsigned value. Performs either a |
688 | * 32-bit or 64-bit conversion, depending on the current mode | |
689 | * of the interpreter. | |
1da177e4 LT |
690 | * NOTE: Does not support Octal strings, not needed. |
691 | * | |
692 | ******************************************************************************/ | |
693 | ||
694 | acpi_status | |
4be44fcd | 695 | acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) |
1da177e4 | 696 | { |
4be44fcd LB |
697 | u32 this_digit = 0; |
698 | acpi_integer return_value = 0; | |
699 | acpi_integer quotient; | |
4119532c BM |
700 | acpi_integer dividend; |
701 | u32 to_integer_op = (base == ACPI_ANY_BASE); | |
702 | u32 mode32 = (acpi_gbl_integer_byte_width == 4); | |
703 | u8 valid_digits = 0; | |
704 | u8 sign_of0x = 0; | |
705 | u8 term = 0; | |
1da177e4 | 706 | |
f6dd9221 | 707 | ACPI_FUNCTION_TRACE_STR(ut_stroul64, string); |
1da177e4 | 708 | |
1da177e4 LT |
709 | switch (base) { |
710 | case ACPI_ANY_BASE: | |
1da177e4 LT |
711 | case 16: |
712 | break; | |
713 | ||
714 | default: | |
715 | /* Invalid Base */ | |
4be44fcd | 716 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
1da177e4 LT |
717 | } |
718 | ||
4119532c BM |
719 | if (!string) { |
720 | goto error_exit; | |
721 | } | |
722 | ||
1da177e4 LT |
723 | /* Skip over any white space in the buffer */ |
724 | ||
4119532c | 725 | while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) { |
1da177e4 LT |
726 | string++; |
727 | } | |
728 | ||
4119532c BM |
729 | if (to_integer_op) { |
730 | /* | |
731 | * Base equal to ACPI_ANY_BASE means 'to_integer operation case'. | |
732 | * We need to determine if it is decimal or hexadecimal. | |
733 | */ | |
4be44fcd | 734 | if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { |
4119532c | 735 | sign_of0x = 1; |
1da177e4 | 736 | base = 16; |
4119532c BM |
737 | |
738 | /* Skip over the leading '0x' */ | |
1da177e4 | 739 | string += 2; |
4be44fcd | 740 | } else { |
1da177e4 LT |
741 | base = 10; |
742 | } | |
743 | } | |
744 | ||
4119532c BM |
745 | /* Any string left? Check that '0x' is not followed by white space. */ |
746 | ||
747 | if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') { | |
748 | if (to_integer_op) { | |
749 | goto error_exit; | |
750 | } else { | |
751 | goto all_done; | |
752 | } | |
1da177e4 LT |
753 | } |
754 | ||
f6dd9221 BM |
755 | /* |
756 | * Perform a 32-bit or 64-bit conversion, depending upon the current | |
757 | * execution mode of the interpreter | |
758 | */ | |
4119532c | 759 | dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; |
1da177e4 | 760 | |
f6dd9221 | 761 | /* Main loop: convert the string to a 32- or 64-bit integer */ |
1da177e4 LT |
762 | |
763 | while (*string) { | |
4be44fcd | 764 | if (ACPI_IS_DIGIT(*string)) { |
52fc0b02 | 765 | |
1da177e4 LT |
766 | /* Convert ASCII 0-9 to Decimal value */ |
767 | ||
4be44fcd | 768 | this_digit = ((u8) * string) - '0'; |
4119532c | 769 | } else if (base == 10) { |
1da177e4 | 770 | |
4119532c | 771 | /* Digit is out of range; possible in to_integer case only */ |
1da177e4 | 772 | |
4119532c BM |
773 | term = 1; |
774 | } else { | |
4be44fcd LB |
775 | this_digit = (u8) ACPI_TOUPPER(*string); |
776 | if (ACPI_IS_XDIGIT((char)this_digit)) { | |
52fc0b02 | 777 | |
1da177e4 LT |
778 | /* Convert ASCII Hex char to value */ |
779 | ||
780 | this_digit = this_digit - 'A' + 10; | |
4be44fcd | 781 | } else { |
4119532c BM |
782 | term = 1; |
783 | } | |
784 | } | |
785 | ||
786 | if (term) { | |
787 | if (to_integer_op) { | |
788 | goto error_exit; | |
789 | } else { | |
1da177e4 LT |
790 | break; |
791 | } | |
4119532c BM |
792 | } else if ((valid_digits == 0) && (this_digit == 0) |
793 | && !sign_of0x) { | |
794 | ||
795 | /* Skip zeros */ | |
796 | string++; | |
797 | continue; | |
798 | } | |
799 | ||
800 | valid_digits++; | |
801 | ||
fd350943 LB |
802 | if (sign_of0x && ((valid_digits > 16) |
803 | || ((valid_digits > 8) && mode32))) { | |
4119532c BM |
804 | /* |
805 | * This is to_integer operation case. | |
806 | * No any restrictions for string-to-integer conversion, | |
807 | * see ACPI spec. | |
808 | */ | |
809 | goto error_exit; | |
1da177e4 LT |
810 | } |
811 | ||
812 | /* Divide the digit into the correct position */ | |
813 | ||
4be44fcd | 814 | (void) |
4119532c BM |
815 | acpi_ut_short_divide((dividend - (acpi_integer) this_digit), |
816 | base, "ient, NULL); | |
817 | ||
1da177e4 | 818 | if (return_value > quotient) { |
4119532c BM |
819 | if (to_integer_op) { |
820 | goto error_exit; | |
821 | } else { | |
822 | break; | |
823 | } | |
1da177e4 LT |
824 | } |
825 | ||
826 | return_value *= base; | |
827 | return_value += this_digit; | |
828 | string++; | |
829 | } | |
830 | ||
831 | /* All done, normal exit */ | |
832 | ||
4119532c BM |
833 | all_done: |
834 | ||
f6dd9221 BM |
835 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", |
836 | ACPI_FORMAT_UINT64(return_value))); | |
837 | ||
1da177e4 | 838 | *ret_integer = return_value; |
4be44fcd | 839 | return_ACPI_STATUS(AE_OK); |
1da177e4 | 840 | |
4be44fcd | 841 | error_exit: |
1da177e4 LT |
842 | /* Base was set/validated above */ |
843 | ||
844 | if (base == 10) { | |
4be44fcd LB |
845 | return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT); |
846 | } else { | |
847 | return_ACPI_STATUS(AE_BAD_HEX_CONSTANT); | |
1da177e4 LT |
848 | } |
849 | } | |
850 | ||
1da177e4 LT |
851 | /******************************************************************************* |
852 | * | |
853 | * FUNCTION: acpi_ut_create_update_state_and_push | |
854 | * | |
44f6c012 | 855 | * PARAMETERS: Object - Object to be added to the new state |
1da177e4 LT |
856 | * Action - Increment/Decrement |
857 | * state_list - List the state will be added to | |
858 | * | |
44f6c012 | 859 | * RETURN: Status |
1da177e4 LT |
860 | * |
861 | * DESCRIPTION: Create a new state and push it | |
862 | * | |
863 | ******************************************************************************/ | |
864 | ||
865 | acpi_status | |
4be44fcd LB |
866 | acpi_ut_create_update_state_and_push(union acpi_operand_object *object, |
867 | u16 action, | |
868 | union acpi_generic_state **state_list) | |
1da177e4 | 869 | { |
4be44fcd | 870 | union acpi_generic_state *state; |
1da177e4 | 871 | |
4be44fcd | 872 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
873 | |
874 | /* Ignore null objects; these are expected */ | |
875 | ||
876 | if (!object) { | |
877 | return (AE_OK); | |
878 | } | |
879 | ||
4be44fcd | 880 | state = acpi_ut_create_update_state(object, action); |
1da177e4 LT |
881 | if (!state) { |
882 | return (AE_NO_MEMORY); | |
883 | } | |
884 | ||
4be44fcd | 885 | acpi_ut_push_generic_state(state_list, state); |
1da177e4 LT |
886 | return (AE_OK); |
887 | } | |
888 | ||
1da177e4 LT |
889 | /******************************************************************************* |
890 | * | |
891 | * FUNCTION: acpi_ut_walk_package_tree | |
892 | * | |
44f6c012 RM |
893 | * PARAMETERS: source_object - The package to walk |
894 | * target_object - Target object (if package is being copied) | |
895 | * walk_callback - Called once for each package element | |
896 | * Context - Passed to the callback function | |
1da177e4 LT |
897 | * |
898 | * RETURN: Status | |
899 | * | |
900 | * DESCRIPTION: Walk through a package | |
901 | * | |
902 | ******************************************************************************/ | |
903 | ||
904 | acpi_status | |
4be44fcd LB |
905 | acpi_ut_walk_package_tree(union acpi_operand_object * source_object, |
906 | void *target_object, | |
907 | acpi_pkg_callback walk_callback, void *context) | |
1da177e4 | 908 | { |
4be44fcd LB |
909 | acpi_status status = AE_OK; |
910 | union acpi_generic_state *state_list = NULL; | |
911 | union acpi_generic_state *state; | |
912 | u32 this_index; | |
913 | union acpi_operand_object *this_source_obj; | |
1da177e4 | 914 | |
b229cf92 | 915 | ACPI_FUNCTION_TRACE(ut_walk_package_tree); |
1da177e4 | 916 | |
4be44fcd | 917 | state = acpi_ut_create_pkg_state(source_object, target_object, 0); |
1da177e4 | 918 | if (!state) { |
4be44fcd | 919 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
920 | } |
921 | ||
922 | while (state) { | |
52fc0b02 | 923 | |
1da177e4 LT |
924 | /* Get one element of the package */ |
925 | ||
4be44fcd | 926 | this_index = state->pkg.index; |
1da177e4 | 927 | this_source_obj = (union acpi_operand_object *) |
4be44fcd | 928 | state->pkg.source_object->package.elements[this_index]; |
1da177e4 LT |
929 | |
930 | /* | |
931 | * Check for: | |
932 | * 1) An uninitialized package element. It is completely | |
933 | * legal to declare a package and leave it uninitialized | |
934 | * 2) Not an internal object - can be a namespace node instead | |
935 | * 3) Any type other than a package. Packages are handled in else | |
936 | * case below. | |
937 | */ | |
938 | if ((!this_source_obj) || | |
4be44fcd LB |
939 | (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) != |
940 | ACPI_DESC_TYPE_OPERAND) | |
941 | || (ACPI_GET_OBJECT_TYPE(this_source_obj) != | |
942 | ACPI_TYPE_PACKAGE)) { | |
943 | status = | |
944 | walk_callback(ACPI_COPY_TYPE_SIMPLE, | |
945 | this_source_obj, state, context); | |
946 | if (ACPI_FAILURE(status)) { | |
947 | return_ACPI_STATUS(status); | |
1da177e4 LT |
948 | } |
949 | ||
950 | state->pkg.index++; | |
4be44fcd LB |
951 | while (state->pkg.index >= |
952 | state->pkg.source_object->package.count) { | |
1da177e4 LT |
953 | /* |
954 | * We've handled all of the objects at this level, This means | |
955 | * that we have just completed a package. That package may | |
956 | * have contained one or more packages itself. | |
957 | * | |
958 | * Delete this state and pop the previous state (package). | |
959 | */ | |
4be44fcd LB |
960 | acpi_ut_delete_generic_state(state); |
961 | state = acpi_ut_pop_generic_state(&state_list); | |
1da177e4 LT |
962 | |
963 | /* Finished when there are no more states */ | |
964 | ||
965 | if (!state) { | |
966 | /* | |
967 | * We have handled all of the objects in the top level | |
968 | * package just add the length of the package objects | |
969 | * and exit | |
970 | */ | |
4be44fcd | 971 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
972 | } |
973 | ||
974 | /* | |
975 | * Go back up a level and move the index past the just | |
976 | * completed package object. | |
977 | */ | |
978 | state->pkg.index++; | |
979 | } | |
4be44fcd | 980 | } else { |
1da177e4 LT |
981 | /* This is a subobject of type package */ |
982 | ||
4be44fcd LB |
983 | status = |
984 | walk_callback(ACPI_COPY_TYPE_PACKAGE, | |
985 | this_source_obj, state, context); | |
986 | if (ACPI_FAILURE(status)) { | |
987 | return_ACPI_STATUS(status); | |
1da177e4 LT |
988 | } |
989 | ||
990 | /* | |
991 | * Push the current state and create a new one | |
992 | * The callback above returned a new target package object. | |
993 | */ | |
4be44fcd LB |
994 | acpi_ut_push_generic_state(&state_list, state); |
995 | state = acpi_ut_create_pkg_state(this_source_obj, | |
996 | state->pkg. | |
997 | this_target_obj, 0); | |
1da177e4 | 998 | if (!state) { |
cf058bd1 LM |
999 | |
1000 | /* Free any stacked Update State objects */ | |
1001 | ||
1002 | while (state_list) { | |
1003 | state = | |
1004 | acpi_ut_pop_generic_state | |
1005 | (&state_list); | |
1006 | acpi_ut_delete_generic_state(state); | |
1007 | } | |
4be44fcd | 1008 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
1009 | } |
1010 | } | |
1011 | } | |
1012 | ||
1013 | /* We should never get here */ | |
1014 | ||
4be44fcd | 1015 | return_ACPI_STATUS(AE_AML_INTERNAL); |
1da177e4 LT |
1016 | } |
1017 | ||
1da177e4 LT |
1018 | /******************************************************************************* |
1019 | * | |
50df4d8b | 1020 | * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info |
1da177e4 LT |
1021 | * |
1022 | * PARAMETERS: module_name - Caller's module name (for error output) | |
1023 | * line_number - Caller's line number (for error output) | |
b8e4d893 | 1024 | * Format - Printf format string + additional args |
1da177e4 LT |
1025 | * |
1026 | * RETURN: None | |
1027 | * | |
b8e4d893 | 1028 | * DESCRIPTION: Print message with module/line/version info |
1da177e4 LT |
1029 | * |
1030 | ******************************************************************************/ | |
1031 | ||
b8e4d893 | 1032 | void ACPI_INTERNAL_VAR_XFACE |
50df4d8b | 1033 | acpi_error(const char *module_name, u32 line_number, const char *format, ...) |
1da177e4 | 1034 | { |
b8e4d893 | 1035 | va_list args; |
1da177e4 | 1036 | |
4a90c7e8 | 1037 | acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); |
b8e4d893 BM |
1038 | |
1039 | va_start(args, format); | |
1040 | acpi_os_vprintf(format, args); | |
1041 | acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); | |
507f046c | 1042 | va_end(args); |
1da177e4 LT |
1043 | } |
1044 | ||
b8e4d893 | 1045 | void ACPI_INTERNAL_VAR_XFACE |
50df4d8b BM |
1046 | acpi_exception(const char *module_name, |
1047 | u32 line_number, acpi_status status, const char *format, ...) | |
b8e4d893 BM |
1048 | { |
1049 | va_list args; | |
1da177e4 | 1050 | |
b8e4d893 BM |
1051 | acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name, |
1052 | line_number, acpi_format_exception(status)); | |
1053 | ||
1054 | va_start(args, format); | |
1055 | acpi_os_vprintf(format, args); | |
1056 | acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); | |
3549dba2 | 1057 | va_end(args); |
b8e4d893 | 1058 | } |
fd350943 | 1059 | |
b8e4d893 | 1060 | void ACPI_INTERNAL_VAR_XFACE |
50df4d8b | 1061 | acpi_warning(const char *module_name, u32 line_number, const char *format, ...) |
1da177e4 | 1062 | { |
b8e4d893 | 1063 | va_list args; |
1da177e4 | 1064 | |
4a90c7e8 | 1065 | acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number); |
b8e4d893 BM |
1066 | |
1067 | va_start(args, format); | |
1068 | acpi_os_vprintf(format, args); | |
1069 | acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); | |
507f046c | 1070 | va_end(args); |
b8e4d893 | 1071 | } |
cece9296 | 1072 | |
b8e4d893 | 1073 | void ACPI_INTERNAL_VAR_XFACE |
50df4d8b | 1074 | acpi_info(const char *module_name, u32 line_number, const char *format, ...) |
b8e4d893 BM |
1075 | { |
1076 | va_list args; | |
1077 | ||
c5fc42ac BM |
1078 | /* |
1079 | * Removed module_name, line_number, and acpica version, not needed | |
1080 | * for info output | |
1081 | */ | |
1082 | acpi_os_printf("ACPI: "); | |
b8e4d893 BM |
1083 | |
1084 | va_start(args, format); | |
1085 | acpi_os_vprintf(format, args); | |
c5fc42ac | 1086 | acpi_os_printf("\n"); |
507f046c | 1087 | va_end(args); |
1da177e4 | 1088 | } |
50df4d8b BM |
1089 | |
1090 | ACPI_EXPORT_SYMBOL(acpi_error) | |
1091 | ACPI_EXPORT_SYMBOL(acpi_exception) | |
1092 | ACPI_EXPORT_SYMBOL(acpi_warning) | |
1093 | ACPI_EXPORT_SYMBOL(acpi_info) |