1 /*******************************************************************************
3 * Module Name: utmisc - common utility procedures
5 ******************************************************************************/
8 * Copyright (C) 2000 - 2010, Intel Corp.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
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18 * substantially similar to the "NO WARRANTY" disclaimer below
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20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
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
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44 #include <linux/module.h>
46 #include <acpi/acpi.h>
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utmisc")
54 * Common suffix for messages
56 #define ACPI_COMMON_MSG_SUFFIX \
57 acpi_os_printf(" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number)
58 /*******************************************************************************
60 * FUNCTION: acpi_ut_validate_exception
62 * PARAMETERS: Status - The acpi_status code to be formatted
64 * RETURN: A string containing the exception text. NULL if exception is
67 * DESCRIPTION: This function validates and translates an ACPI exception into
70 ******************************************************************************/
71 const char *acpi_ut_validate_exception(acpi_status status)
74 const char *exception = NULL;
76 ACPI_FUNCTION_ENTRY();
79 * Status is composed of two parts, a "type" and an actual code
81 sub_status = (status & ~AE_CODE_MASK);
83 switch (status & AE_CODE_MASK) {
84 case AE_CODE_ENVIRONMENTAL:
86 if (sub_status <= AE_CODE_ENV_MAX) {
87 exception = acpi_gbl_exception_names_env[sub_status];
91 case AE_CODE_PROGRAMMER:
93 if (sub_status <= AE_CODE_PGM_MAX) {
94 exception = acpi_gbl_exception_names_pgm[sub_status];
98 case AE_CODE_ACPI_TABLES:
100 if (sub_status <= AE_CODE_TBL_MAX) {
101 exception = acpi_gbl_exception_names_tbl[sub_status];
107 if (sub_status <= AE_CODE_AML_MAX) {
108 exception = acpi_gbl_exception_names_aml[sub_status];
112 case AE_CODE_CONTROL:
114 if (sub_status <= AE_CODE_CTRL_MAX) {
115 exception = acpi_gbl_exception_names_ctrl[sub_status];
123 return (ACPI_CAST_PTR(const char, exception));
126 /*******************************************************************************
128 * FUNCTION: acpi_ut_is_pci_root_bridge
130 * PARAMETERS: Id - The HID/CID in string format
132 * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
134 * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
136 ******************************************************************************/
138 u8 acpi_ut_is_pci_root_bridge(char *id)
142 * Check if this is a PCI root bridge.
143 * ACPI 3.0+: check for a PCI Express root also.
145 if (!(ACPI_STRCMP(id,
146 PCI_ROOT_HID_STRING)) ||
147 !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
154 /*******************************************************************************
156 * FUNCTION: acpi_ut_is_aml_table
158 * PARAMETERS: Table - An ACPI table
160 * RETURN: TRUE if table contains executable AML; FALSE otherwise
162 * DESCRIPTION: Check ACPI Signature for a table that contains AML code.
163 * Currently, these are DSDT,SSDT,PSDT. All other table types are
164 * data tables that do not contain AML code.
166 ******************************************************************************/
168 u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
171 /* These are the only tables that contain executable AML */
173 if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
174 ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
175 ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
182 /*******************************************************************************
184 * FUNCTION: acpi_ut_allocate_owner_id
186 * PARAMETERS: owner_id - Where the new owner ID is returned
190 * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
191 * track objects created by the table or method, to be deleted
192 * when the method exits or the table is unloaded.
194 ******************************************************************************/
196 acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
203 ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
205 /* Guard against multiple allocations of ID to the same location */
208 ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists",
210 return_ACPI_STATUS(AE_ALREADY_EXISTS);
213 /* Mutex for the global ID mask */
215 status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
216 if (ACPI_FAILURE(status)) {
217 return_ACPI_STATUS(status);
221 * Find a free owner ID, cycle through all possible IDs on repeated
222 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
223 * to be scanned twice.
225 for (i = 0, j = acpi_gbl_last_owner_id_index;
226 i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
227 if (j >= ACPI_NUM_OWNERID_MASKS) {
228 j = 0; /* Wraparound to start of mask array */
231 for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
232 if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
234 /* There are no free IDs in this mask */
239 if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
241 * Found a free ID. The actual ID is the bit index plus one,
242 * making zero an invalid Owner ID. Save this as the last ID
243 * allocated and update the global ID mask.
245 acpi_gbl_owner_id_mask[j] |= (1 << k);
247 acpi_gbl_last_owner_id_index = (u8) j;
248 acpi_gbl_next_owner_id_offset = (u8) (k + 1);
251 * Construct encoded ID from the index and bit position
253 * Note: Last [j].k (bit 255) is never used and is marked
254 * permanently allocated (prevents +1 overflow)
257 (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
259 ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
260 "Allocated OwnerId: %2.2X\n",
261 (unsigned int)*owner_id));
266 acpi_gbl_next_owner_id_offset = 0;
270 * All owner_ids have been allocated. This typically should
271 * not happen since the IDs are reused after deallocation. The IDs are
272 * allocated upon table load (one per table) and method execution, and
273 * they are released when a table is unloaded or a method completes
276 * If this error happens, there may be very deep nesting of invoked control
277 * methods, or there may be a bug where the IDs are not released.
279 status = AE_OWNER_ID_LIMIT;
281 "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
284 (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
285 return_ACPI_STATUS(status);
288 /*******************************************************************************
290 * FUNCTION: acpi_ut_release_owner_id
292 * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD
294 * RETURN: None. No error is returned because we are either exiting a
295 * control method or unloading a table. Either way, we would
296 * ignore any error anyway.
298 * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
300 ******************************************************************************/
302 void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
304 acpi_owner_id owner_id = *owner_id_ptr;
309 ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
311 /* Always clear the input owner_id (zero is an invalid ID) */
315 /* Zero is not a valid owner_iD */
318 ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id));
322 /* Mutex for the global ID mask */
324 status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
325 if (ACPI_FAILURE(status)) {
329 /* Normalize the ID to zero */
333 /* Decode ID to index/offset pair */
335 index = ACPI_DIV_32(owner_id);
336 bit = 1 << ACPI_MOD_32(owner_id);
338 /* Free the owner ID only if it is valid */
340 if (acpi_gbl_owner_id_mask[index] & bit) {
341 acpi_gbl_owner_id_mask[index] ^= bit;
344 "Release of non-allocated OwnerId: %2.2X",
348 (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
352 /*******************************************************************************
354 * FUNCTION: acpi_ut_strupr (strupr)
356 * PARAMETERS: src_string - The source string to convert
360 * DESCRIPTION: Convert string to uppercase
362 * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
364 ******************************************************************************/
366 void acpi_ut_strupr(char *src_string)
370 ACPI_FUNCTION_ENTRY();
376 /* Walk entire string, uppercasing the letters */
378 for (string = src_string; *string; string++) {
379 *string = (char)ACPI_TOUPPER(*string);
385 /*******************************************************************************
387 * FUNCTION: acpi_ut_print_string
389 * PARAMETERS: String - Null terminated ASCII string
390 * max_length - Maximum output length
394 * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
397 ******************************************************************************/
399 void acpi_ut_print_string(char *string, u8 max_length)
404 acpi_os_printf("<\"NULL STRING PTR\">");
408 acpi_os_printf("\"");
409 for (i = 0; string[i] && (i < max_length); i++) {
411 /* Escape sequences */
415 acpi_os_printf("\\a"); /* BELL */
419 acpi_os_printf("\\b"); /* BACKSPACE */
423 acpi_os_printf("\\f"); /* FORMFEED */
427 acpi_os_printf("\\n"); /* LINEFEED */
431 acpi_os_printf("\\r"); /* CARRIAGE RETURN */
435 acpi_os_printf("\\t"); /* HORIZONTAL TAB */
439 acpi_os_printf("\\v"); /* VERTICAL TAB */
442 case '\'': /* Single Quote */
443 case '\"': /* Double Quote */
444 case '\\': /* Backslash */
445 acpi_os_printf("\\%c", (int)string[i]);
450 /* Check for printable character or hex escape */
452 if (ACPI_IS_PRINT(string[i])) {
453 /* This is a normal character */
455 acpi_os_printf("%c", (int)string[i]);
457 /* All others will be Hex escapes */
459 acpi_os_printf("\\x%2.2X", (s32) string[i]);
464 acpi_os_printf("\"");
466 if (i == max_length && string[i]) {
467 acpi_os_printf("...");
471 /*******************************************************************************
473 * FUNCTION: acpi_ut_dword_byte_swap
475 * PARAMETERS: Value - Value to be converted
477 * RETURN: u32 integer with bytes swapped
479 * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes)
481 ******************************************************************************/
483 u32 acpi_ut_dword_byte_swap(u32 value)
494 ACPI_FUNCTION_ENTRY();
498 out.bytes[0] = in.bytes[3];
499 out.bytes[1] = in.bytes[2];
500 out.bytes[2] = in.bytes[1];
501 out.bytes[3] = in.bytes[0];
506 /*******************************************************************************
508 * FUNCTION: acpi_ut_set_integer_width
510 * PARAMETERS: Revision From DSDT header
514 * DESCRIPTION: Set the global integer bit width based upon the revision
515 * of the DSDT. For Revision 1 and 0, Integers are 32 bits.
516 * For Revision 2 and above, Integers are 64 bits. Yes, this
517 * makes a difference.
519 ******************************************************************************/
521 void acpi_ut_set_integer_width(u8 revision)
528 acpi_gbl_integer_bit_width = 32;
529 acpi_gbl_integer_nybble_width = 8;
530 acpi_gbl_integer_byte_width = 4;
532 /* 64-bit case (ACPI 2.0+) */
534 acpi_gbl_integer_bit_width = 64;
535 acpi_gbl_integer_nybble_width = 16;
536 acpi_gbl_integer_byte_width = 8;
540 #ifdef ACPI_DEBUG_OUTPUT
541 /*******************************************************************************
543 * FUNCTION: acpi_ut_display_init_pathname
545 * PARAMETERS: Type - Object type of the node
546 * obj_handle - Handle whose pathname will be displayed
547 * Path - Additional path string to be appended.
548 * (NULL if no extra path)
550 * RETURN: acpi_status
552 * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
554 ******************************************************************************/
557 acpi_ut_display_init_pathname(u8 type,
558 struct acpi_namespace_node *obj_handle,
562 struct acpi_buffer buffer;
564 ACPI_FUNCTION_ENTRY();
566 /* Only print the path if the appropriate debug level is enabled */
568 if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
572 /* Get the full pathname to the node */
574 buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
575 status = acpi_ns_handle_to_pathname(obj_handle, &buffer);
576 if (ACPI_FAILURE(status)) {
580 /* Print what we're doing */
583 case ACPI_TYPE_METHOD:
584 acpi_os_printf("Executing ");
588 acpi_os_printf("Initializing ");
592 /* Print the object type and pathname */
594 acpi_os_printf("%-12s %s",
595 acpi_ut_get_type_name(type), (char *)buffer.pointer);
597 /* Extra path is used to append names like _STA, _INI, etc. */
600 acpi_os_printf(".%s", path);
602 acpi_os_printf("\n");
604 ACPI_FREE(buffer.pointer);
608 /*******************************************************************************
610 * FUNCTION: acpi_ut_valid_acpi_char
612 * PARAMETERS: Char - The character to be examined
613 * Position - Byte position (0-3)
615 * RETURN: TRUE if the character is valid, FALSE otherwise
617 * DESCRIPTION: Check for a valid ACPI character. Must be one of:
618 * 1) Upper case alpha
622 * We allow a '!' as the last character because of the ASF! table
624 ******************************************************************************/
626 u8 acpi_ut_valid_acpi_char(char character, u32 position)
629 if (!((character >= 'A' && character <= 'Z') ||
630 (character >= '0' && character <= '9') || (character == '_'))) {
632 /* Allow a '!' in the last position */
634 if (character == '!' && position == 3) {
644 /*******************************************************************************
646 * FUNCTION: acpi_ut_valid_acpi_name
648 * PARAMETERS: Name - The name to be examined
650 * RETURN: TRUE if the name is valid, FALSE otherwise
652 * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
653 * 1) Upper case alpha
657 ******************************************************************************/
659 u8 acpi_ut_valid_acpi_name(u32 name)
663 ACPI_FUNCTION_ENTRY();
665 for (i = 0; i < ACPI_NAME_SIZE; i++) {
666 if (!acpi_ut_valid_acpi_char
667 ((ACPI_CAST_PTR(char, &name))[i], i)) {
675 /*******************************************************************************
677 * FUNCTION: acpi_ut_repair_name
679 * PARAMETERS: Name - The ACPI name to be repaired
681 * RETURN: Repaired version of the name
683 * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
684 * return the new name.
686 ******************************************************************************/
688 acpi_name acpi_ut_repair_name(char *name)
691 char new_name[ACPI_NAME_SIZE];
693 for (i = 0; i < ACPI_NAME_SIZE; i++) {
694 new_name[i] = name[i];
697 * Replace a bad character with something printable, yet technically
698 * still invalid. This prevents any collisions with existing "good"
699 * names in the namespace.
701 if (!acpi_ut_valid_acpi_char(name[i], i)) {
706 return (*(u32 *) new_name);
709 /*******************************************************************************
711 * FUNCTION: acpi_ut_strtoul64
713 * PARAMETERS: String - Null terminated string
714 * Base - Radix of the string: 16 or ACPI_ANY_BASE;
715 * ACPI_ANY_BASE means 'in behalf of to_integer'
716 * ret_integer - Where the converted integer is returned
718 * RETURN: Status and Converted value
720 * DESCRIPTION: Convert a string into an unsigned value. Performs either a
721 * 32-bit or 64-bit conversion, depending on the current mode
722 * of the interpreter.
723 * NOTE: Does not support Octal strings, not needed.
725 ******************************************************************************/
727 acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer)
730 u64 return_value = 0;
733 u32 to_integer_op = (base == ACPI_ANY_BASE);
734 u32 mode32 = (acpi_gbl_integer_byte_width == 4);
739 ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
748 return_ACPI_STATUS(AE_BAD_PARAMETER);
755 /* Skip over any white space in the buffer */
757 while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
763 * Base equal to ACPI_ANY_BASE means 'to_integer operation case'.
764 * We need to determine if it is decimal or hexadecimal.
766 if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
770 /* Skip over the leading '0x' */
777 /* Any string left? Check that '0x' is not followed by white space. */
779 if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
788 * Perform a 32-bit or 64-bit conversion, depending upon the current
789 * execution mode of the interpreter
791 dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
793 /* Main loop: convert the string to a 32- or 64-bit integer */
796 if (ACPI_IS_DIGIT(*string)) {
798 /* Convert ASCII 0-9 to Decimal value */
800 this_digit = ((u8) * string) - '0';
801 } else if (base == 10) {
803 /* Digit is out of range; possible in to_integer case only */
807 this_digit = (u8) ACPI_TOUPPER(*string);
808 if (ACPI_IS_XDIGIT((char)this_digit)) {
810 /* Convert ASCII Hex char to value */
812 this_digit = this_digit - 'A' + 10;
824 } else if ((valid_digits == 0) && (this_digit == 0)
834 if (sign_of0x && ((valid_digits > 16)
835 || ((valid_digits > 8) && mode32))) {
837 * This is to_integer operation case.
838 * No any restrictions for string-to-integer conversion,
844 /* Divide the digit into the correct position */
846 (void)acpi_ut_short_divide((dividend - (u64) this_digit),
847 base, "ient, NULL);
849 if (return_value > quotient) {
857 return_value *= base;
858 return_value += this_digit;
862 /* All done, normal exit */
866 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
867 ACPI_FORMAT_UINT64(return_value)));
869 *ret_integer = return_value;
870 return_ACPI_STATUS(AE_OK);
873 /* Base was set/validated above */
876 return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT);
878 return_ACPI_STATUS(AE_BAD_HEX_CONSTANT);
882 /*******************************************************************************
884 * FUNCTION: acpi_ut_create_update_state_and_push
886 * PARAMETERS: Object - Object to be added to the new state
887 * Action - Increment/Decrement
888 * state_list - List the state will be added to
892 * DESCRIPTION: Create a new state and push it
894 ******************************************************************************/
897 acpi_ut_create_update_state_and_push(union acpi_operand_object *object,
899 union acpi_generic_state **state_list)
901 union acpi_generic_state *state;
903 ACPI_FUNCTION_ENTRY();
905 /* Ignore null objects; these are expected */
911 state = acpi_ut_create_update_state(object, action);
913 return (AE_NO_MEMORY);
916 acpi_ut_push_generic_state(state_list, state);
920 /*******************************************************************************
922 * FUNCTION: acpi_ut_walk_package_tree
924 * PARAMETERS: source_object - The package to walk
925 * target_object - Target object (if package is being copied)
926 * walk_callback - Called once for each package element
927 * Context - Passed to the callback function
931 * DESCRIPTION: Walk through a package
933 ******************************************************************************/
936 acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
938 acpi_pkg_callback walk_callback, void *context)
940 acpi_status status = AE_OK;
941 union acpi_generic_state *state_list = NULL;
942 union acpi_generic_state *state;
944 union acpi_operand_object *this_source_obj;
946 ACPI_FUNCTION_TRACE(ut_walk_package_tree);
948 state = acpi_ut_create_pkg_state(source_object, target_object, 0);
950 return_ACPI_STATUS(AE_NO_MEMORY);
955 /* Get one element of the package */
957 this_index = state->pkg.index;
958 this_source_obj = (union acpi_operand_object *)
959 state->pkg.source_object->package.elements[this_index];
963 * 1) An uninitialized package element. It is completely
964 * legal to declare a package and leave it uninitialized
965 * 2) Not an internal object - can be a namespace node instead
966 * 3) Any type other than a package. Packages are handled in else
969 if ((!this_source_obj) ||
970 (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) !=
971 ACPI_DESC_TYPE_OPERAND)
972 || (this_source_obj->common.type != ACPI_TYPE_PACKAGE)) {
974 walk_callback(ACPI_COPY_TYPE_SIMPLE,
975 this_source_obj, state, context);
976 if (ACPI_FAILURE(status)) {
977 return_ACPI_STATUS(status);
981 while (state->pkg.index >=
982 state->pkg.source_object->package.count) {
984 * We've handled all of the objects at this level, This means
985 * that we have just completed a package. That package may
986 * have contained one or more packages itself.
988 * Delete this state and pop the previous state (package).
990 acpi_ut_delete_generic_state(state);
991 state = acpi_ut_pop_generic_state(&state_list);
993 /* Finished when there are no more states */
997 * We have handled all of the objects in the top level
998 * package just add the length of the package objects
1001 return_ACPI_STATUS(AE_OK);
1005 * Go back up a level and move the index past the just
1006 * completed package object.
1011 /* This is a subobject of type package */
1014 walk_callback(ACPI_COPY_TYPE_PACKAGE,
1015 this_source_obj, state, context);
1016 if (ACPI_FAILURE(status)) {
1017 return_ACPI_STATUS(status);
1021 * Push the current state and create a new one
1022 * The callback above returned a new target package object.
1024 acpi_ut_push_generic_state(&state_list, state);
1025 state = acpi_ut_create_pkg_state(this_source_obj,
1027 this_target_obj, 0);
1030 /* Free any stacked Update State objects */
1032 while (state_list) {
1034 acpi_ut_pop_generic_state
1036 acpi_ut_delete_generic_state(state);
1038 return_ACPI_STATUS(AE_NO_MEMORY);
1043 /* We should never get here */
1045 return_ACPI_STATUS(AE_AML_INTERNAL);
1048 /*******************************************************************************
1050 * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info
1052 * PARAMETERS: module_name - Caller's module name (for error output)
1053 * line_number - Caller's line number (for error output)
1054 * Format - Printf format string + additional args
1058 * DESCRIPTION: Print message with module/line/version info
1060 ******************************************************************************/
1062 void ACPI_INTERNAL_VAR_XFACE
1063 acpi_error(const char *module_name, u32 line_number, const char *format, ...)
1067 acpi_os_printf("ACPI Error: ");
1069 va_start(args, format);
1070 acpi_os_vprintf(format, args);
1071 ACPI_COMMON_MSG_SUFFIX;
1075 void ACPI_INTERNAL_VAR_XFACE
1076 acpi_exception(const char *module_name,
1077 u32 line_number, acpi_status status, const char *format, ...)
1081 acpi_os_printf("ACPI Exception: %s, ", acpi_format_exception(status));
1083 va_start(args, format);
1084 acpi_os_vprintf(format, args);
1085 ACPI_COMMON_MSG_SUFFIX;
1089 void ACPI_INTERNAL_VAR_XFACE
1090 acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
1094 acpi_os_printf("ACPI Warning: ");
1096 va_start(args, format);
1097 acpi_os_vprintf(format, args);
1098 ACPI_COMMON_MSG_SUFFIX;
1102 void ACPI_INTERNAL_VAR_XFACE
1103 acpi_info(const char *module_name, u32 line_number, const char *format, ...)
1107 acpi_os_printf("ACPI: ");
1109 va_start(args, format);
1110 acpi_os_vprintf(format, args);
1111 acpi_os_printf("\n");
1115 ACPI_EXPORT_SYMBOL(acpi_error)
1116 ACPI_EXPORT_SYMBOL(acpi_exception)
1117 ACPI_EXPORT_SYMBOL(acpi_warning)
1118 ACPI_EXPORT_SYMBOL(acpi_info)
1120 /*******************************************************************************
1122 * FUNCTION: acpi_ut_predefined_warning
1124 * PARAMETERS: module_name - Caller's module name (for error output)
1125 * line_number - Caller's line number (for error output)
1126 * Pathname - Full pathname to the node
1127 * node_flags - From Namespace node for the method/object
1128 * Format - Printf format string + additional args
1132 * DESCRIPTION: Warnings for the predefined validation module. Messages are
1133 * only emitted the first time a problem with a particular
1134 * method/object is detected. This prevents a flood of error
1135 * messages for methods that are repeatedly evaluated.
1137 ******************************************************************************/
1139 void ACPI_INTERNAL_VAR_XFACE
1140 acpi_ut_predefined_warning(const char *module_name,
1143 u8 node_flags, const char *format, ...)
1148 * Warning messages for this method/object will be disabled after the
1149 * first time a validation fails or an object is successfully repaired.
1151 if (node_flags & ANOBJ_EVALUATED) {
1155 acpi_os_printf("ACPI Warning for %s: ", pathname);
1157 va_start(args, format);
1158 acpi_os_vprintf(format, args);
1159 ACPI_COMMON_MSG_SUFFIX;
1163 /*******************************************************************************
1165 * FUNCTION: acpi_ut_predefined_info
1167 * PARAMETERS: module_name - Caller's module name (for error output)
1168 * line_number - Caller's line number (for error output)
1169 * Pathname - Full pathname to the node
1170 * node_flags - From Namespace node for the method/object
1171 * Format - Printf format string + additional args
1175 * DESCRIPTION: Info messages for the predefined validation module. Messages
1176 * are only emitted the first time a problem with a particular
1177 * method/object is detected. This prevents a flood of
1178 * messages for methods that are repeatedly evaluated.
1180 ******************************************************************************/
1182 void ACPI_INTERNAL_VAR_XFACE
1183 acpi_ut_predefined_info(const char *module_name,
1185 char *pathname, u8 node_flags, const char *format, ...)
1190 * Warning messages for this method/object will be disabled after the
1191 * first time a validation fails or an object is successfully repaired.
1193 if (node_flags & ANOBJ_EVALUATED) {
1197 acpi_os_printf("ACPI Info for %s: ", pathname);
1199 va_start(args, format);
1200 acpi_os_vprintf(format, args);
1201 ACPI_COMMON_MSG_SUFFIX;