1 /*******************************************************************************
3 * Module Name: utmisc - common utility procedures
5 ******************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************/
119 #include <contrib/dev/acpica/include/acpi.h>
120 #include <contrib/dev/acpica/include/accommon.h>
121 #include <contrib/dev/acpica/include/acnamesp.h>
124 #define _COMPONENT ACPI_UTILITIES
125 ACPI_MODULE_NAME ("utmisc")
128 * Common suffix for messages
130 #define ACPI_COMMON_MSG_SUFFIX \
131 AcpiOsPrintf (" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, ModuleName, LineNumber)
134 /*******************************************************************************
136 * FUNCTION: AcpiUtValidateException
138 * PARAMETERS: Status - The ACPI_STATUS code to be formatted
140 * RETURN: A string containing the exception text. NULL if exception is
143 * DESCRIPTION: This function validates and translates an ACPI exception into
146 ******************************************************************************/
149 AcpiUtValidateException (
153 const char *Exception = NULL;
156 ACPI_FUNCTION_ENTRY ();
160 * Status is composed of two parts, a "type" and an actual code
162 SubStatus = (Status & ~AE_CODE_MASK);
164 switch (Status & AE_CODE_MASK)
166 case AE_CODE_ENVIRONMENTAL:
168 if (SubStatus <= AE_CODE_ENV_MAX)
170 Exception = AcpiGbl_ExceptionNames_Env [SubStatus];
174 case AE_CODE_PROGRAMMER:
176 if (SubStatus <= AE_CODE_PGM_MAX)
178 Exception = AcpiGbl_ExceptionNames_Pgm [SubStatus];
182 case AE_CODE_ACPI_TABLES:
184 if (SubStatus <= AE_CODE_TBL_MAX)
186 Exception = AcpiGbl_ExceptionNames_Tbl [SubStatus];
192 if (SubStatus <= AE_CODE_AML_MAX)
194 Exception = AcpiGbl_ExceptionNames_Aml [SubStatus];
198 case AE_CODE_CONTROL:
200 if (SubStatus <= AE_CODE_CTRL_MAX)
202 Exception = AcpiGbl_ExceptionNames_Ctrl [SubStatus];
210 return (ACPI_CAST_PTR (const char, Exception));
214 /*******************************************************************************
216 * FUNCTION: AcpiUtIsPciRootBridge
218 * PARAMETERS: Id - The HID/CID in string format
220 * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
222 * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
224 ******************************************************************************/
227 AcpiUtIsPciRootBridge (
232 * Check if this is a PCI root bridge.
233 * ACPI 3.0+: check for a PCI Express root also.
235 if (!(ACPI_STRCMP (Id,
236 PCI_ROOT_HID_STRING)) ||
239 PCI_EXPRESS_ROOT_HID_STRING)))
248 /*******************************************************************************
250 * FUNCTION: AcpiUtIsAmlTable
252 * PARAMETERS: Table - An ACPI table
254 * RETURN: TRUE if table contains executable AML; FALSE otherwise
256 * DESCRIPTION: Check ACPI Signature for a table that contains AML code.
257 * Currently, these are DSDT,SSDT,PSDT. All other table types are
258 * data tables that do not contain AML code.
260 ******************************************************************************/
264 ACPI_TABLE_HEADER *Table)
267 /* These are the only tables that contain executable AML */
269 if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT) ||
270 ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_PSDT) ||
271 ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_SSDT))
280 /*******************************************************************************
282 * FUNCTION: AcpiUtAllocateOwnerId
284 * PARAMETERS: OwnerId - Where the new owner ID is returned
288 * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
289 * track objects created by the table or method, to be deleted
290 * when the method exits or the table is unloaded.
292 ******************************************************************************/
295 AcpiUtAllocateOwnerId (
296 ACPI_OWNER_ID *OwnerId)
304 ACPI_FUNCTION_TRACE (UtAllocateOwnerId);
307 /* Guard against multiple allocations of ID to the same location */
311 ACPI_ERROR ((AE_INFO, "Owner ID [0x%2.2X] already exists", *OwnerId));
312 return_ACPI_STATUS (AE_ALREADY_EXISTS);
315 /* Mutex for the global ID mask */
317 Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
318 if (ACPI_FAILURE (Status))
320 return_ACPI_STATUS (Status);
324 * Find a free owner ID, cycle through all possible IDs on repeated
325 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
326 * to be scanned twice.
328 for (i = 0, j = AcpiGbl_LastOwnerIdIndex;
329 i < (ACPI_NUM_OWNERID_MASKS + 1);
332 if (j >= ACPI_NUM_OWNERID_MASKS)
334 j = 0; /* Wraparound to start of mask array */
337 for (k = AcpiGbl_NextOwnerIdOffset; k < 32; k++)
339 if (AcpiGbl_OwnerIdMask[j] == ACPI_UINT32_MAX)
341 /* There are no free IDs in this mask */
346 if (!(AcpiGbl_OwnerIdMask[j] & (1 << k)))
349 * Found a free ID. The actual ID is the bit index plus one,
350 * making zero an invalid Owner ID. Save this as the last ID
351 * allocated and update the global ID mask.
353 AcpiGbl_OwnerIdMask[j] |= (1 << k);
355 AcpiGbl_LastOwnerIdIndex = (UINT8) j;
356 AcpiGbl_NextOwnerIdOffset = (UINT8) (k + 1);
359 * Construct encoded ID from the index and bit position
361 * Note: Last [j].k (bit 255) is never used and is marked
362 * permanently allocated (prevents +1 overflow)
364 *OwnerId = (ACPI_OWNER_ID) ((k + 1) + ACPI_MUL_32 (j));
366 ACPI_DEBUG_PRINT ((ACPI_DB_VALUES,
367 "Allocated OwnerId: %2.2X\n", (unsigned int) *OwnerId));
372 AcpiGbl_NextOwnerIdOffset = 0;
376 * All OwnerIds have been allocated. This typically should
377 * not happen since the IDs are reused after deallocation. The IDs are
378 * allocated upon table load (one per table) and method execution, and
379 * they are released when a table is unloaded or a method completes
382 * If this error happens, there may be very deep nesting of invoked control
383 * methods, or there may be a bug where the IDs are not released.
385 Status = AE_OWNER_ID_LIMIT;
386 ACPI_ERROR ((AE_INFO,
387 "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
390 (void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
391 return_ACPI_STATUS (Status);
395 /*******************************************************************************
397 * FUNCTION: AcpiUtReleaseOwnerId
399 * PARAMETERS: OwnerIdPtr - Pointer to a previously allocated OwnerID
401 * RETURN: None. No error is returned because we are either exiting a
402 * control method or unloading a table. Either way, we would
403 * ignore any error anyway.
405 * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
407 ******************************************************************************/
410 AcpiUtReleaseOwnerId (
411 ACPI_OWNER_ID *OwnerIdPtr)
413 ACPI_OWNER_ID OwnerId = *OwnerIdPtr;
419 ACPI_FUNCTION_TRACE_U32 (UtReleaseOwnerId, OwnerId);
422 /* Always clear the input OwnerId (zero is an invalid ID) */
426 /* Zero is not a valid OwnerID */
430 ACPI_ERROR ((AE_INFO, "Invalid OwnerId: 0x%2.2X", OwnerId));
434 /* Mutex for the global ID mask */
436 Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
437 if (ACPI_FAILURE (Status))
442 /* Normalize the ID to zero */
446 /* Decode ID to index/offset pair */
448 Index = ACPI_DIV_32 (OwnerId);
449 Bit = 1 << ACPI_MOD_32 (OwnerId);
451 /* Free the owner ID only if it is valid */
453 if (AcpiGbl_OwnerIdMask[Index] & Bit)
455 AcpiGbl_OwnerIdMask[Index] ^= Bit;
459 ACPI_ERROR ((AE_INFO,
460 "Release of non-allocated OwnerId: 0x%2.2X", OwnerId + 1));
463 (void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
468 /*******************************************************************************
470 * FUNCTION: AcpiUtStrupr (strupr)
472 * PARAMETERS: SrcString - The source string to convert
476 * DESCRIPTION: Convert string to uppercase
478 * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
480 ******************************************************************************/
489 ACPI_FUNCTION_ENTRY ();
497 /* Walk entire string, uppercasing the letters */
499 for (String = SrcString; *String; String++)
501 *String = (char) ACPI_TOUPPER (*String);
508 #ifdef ACPI_ASL_COMPILER
509 /*******************************************************************************
511 * FUNCTION: AcpiUtStrlwr (strlwr)
513 * PARAMETERS: SrcString - The source string to convert
517 * DESCRIPTION: Convert string to lowercase
519 * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
521 ******************************************************************************/
530 ACPI_FUNCTION_ENTRY ();
538 /* Walk entire string, lowercasing the letters */
540 for (String = SrcString; *String; String++)
542 *String = (char) ACPI_TOLOWER (*String);
550 /*******************************************************************************
552 * FUNCTION: AcpiUtPrintString
554 * PARAMETERS: String - Null terminated ASCII string
555 * MaxLength - Maximum output length
559 * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
562 ******************************************************************************/
574 AcpiOsPrintf ("<\"NULL STRING PTR\">");
579 for (i = 0; String[i] && (i < MaxLength); i++)
581 /* Escape sequences */
586 AcpiOsPrintf ("\\a"); /* BELL */
590 AcpiOsPrintf ("\\b"); /* BACKSPACE */
594 AcpiOsPrintf ("\\f"); /* FORMFEED */
598 AcpiOsPrintf ("\\n"); /* LINEFEED */
602 AcpiOsPrintf ("\\r"); /* CARRIAGE RETURN*/
606 AcpiOsPrintf ("\\t"); /* HORIZONTAL TAB */
610 AcpiOsPrintf ("\\v"); /* VERTICAL TAB */
613 case '\'': /* Single Quote */
614 case '\"': /* Double Quote */
615 case '\\': /* Backslash */
616 AcpiOsPrintf ("\\%c", (int) String[i]);
621 /* Check for printable character or hex escape */
623 if (ACPI_IS_PRINT (String[i]))
625 /* This is a normal character */
627 AcpiOsPrintf ("%c", (int) String[i]);
631 /* All others will be Hex escapes */
633 AcpiOsPrintf ("\\x%2.2X", (INT32) String[i]);
640 if (i == MaxLength && String[i])
642 AcpiOsPrintf ("...");
647 /*******************************************************************************
649 * FUNCTION: AcpiUtDwordByteSwap
651 * PARAMETERS: Value - Value to be converted
653 * RETURN: UINT32 integer with bytes swapped
655 * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes)
657 ******************************************************************************/
660 AcpiUtDwordByteSwap (
675 ACPI_FUNCTION_ENTRY ();
680 Out.Bytes[0] = In.Bytes[3];
681 Out.Bytes[1] = In.Bytes[2];
682 Out.Bytes[2] = In.Bytes[1];
683 Out.Bytes[3] = In.Bytes[0];
689 /*******************************************************************************
691 * FUNCTION: AcpiUtSetIntegerWidth
693 * PARAMETERS: Revision From DSDT header
697 * DESCRIPTION: Set the global integer bit width based upon the revision
698 * of the DSDT. For Revision 1 and 0, Integers are 32 bits.
699 * For Revision 2 and above, Integers are 64 bits. Yes, this
700 * makes a difference.
702 ******************************************************************************/
705 AcpiUtSetIntegerWidth (
713 AcpiGbl_IntegerBitWidth = 32;
714 AcpiGbl_IntegerNybbleWidth = 8;
715 AcpiGbl_IntegerByteWidth = 4;
719 /* 64-bit case (ACPI 2.0+) */
721 AcpiGbl_IntegerBitWidth = 64;
722 AcpiGbl_IntegerNybbleWidth = 16;
723 AcpiGbl_IntegerByteWidth = 8;
728 #ifdef ACPI_DEBUG_OUTPUT
729 /*******************************************************************************
731 * FUNCTION: AcpiUtDisplayInitPathname
733 * PARAMETERS: Type - Object type of the node
734 * ObjHandle - Handle whose pathname will be displayed
735 * Path - Additional path string to be appended.
736 * (NULL if no extra path)
738 * RETURN: ACPI_STATUS
740 * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
742 ******************************************************************************/
745 AcpiUtDisplayInitPathname (
747 ACPI_NAMESPACE_NODE *ObjHandle,
754 ACPI_FUNCTION_ENTRY ();
757 /* Only print the path if the appropriate debug level is enabled */
759 if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
764 /* Get the full pathname to the node */
766 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
767 Status = AcpiNsHandleToPathname (ObjHandle, &Buffer);
768 if (ACPI_FAILURE (Status))
773 /* Print what we're doing */
777 case ACPI_TYPE_METHOD:
778 AcpiOsPrintf ("Executing ");
782 AcpiOsPrintf ("Initializing ");
786 /* Print the object type and pathname */
788 AcpiOsPrintf ("%-12s %s",
789 AcpiUtGetTypeName (Type), (char *) Buffer.Pointer);
791 /* Extra path is used to append names like _STA, _INI, etc. */
795 AcpiOsPrintf (".%s", Path);
799 ACPI_FREE (Buffer.Pointer);
804 /*******************************************************************************
806 * FUNCTION: AcpiUtValidAcpiChar
808 * PARAMETERS: Char - The character to be examined
809 * Position - Byte position (0-3)
811 * RETURN: TRUE if the character is valid, FALSE otherwise
813 * DESCRIPTION: Check for a valid ACPI character. Must be one of:
814 * 1) Upper case alpha
818 * We allow a '!' as the last character because of the ASF! table
820 ******************************************************************************/
823 AcpiUtValidAcpiChar (
828 if (!((Character >= 'A' && Character <= 'Z') ||
829 (Character >= '0' && Character <= '9') ||
832 /* Allow a '!' in the last position */
834 if (Character == '!' && Position == 3)
846 /*******************************************************************************
848 * FUNCTION: AcpiUtValidAcpiName
850 * PARAMETERS: Name - The name to be examined
852 * RETURN: TRUE if the name is valid, FALSE otherwise
854 * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
855 * 1) Upper case alpha
859 ******************************************************************************/
862 AcpiUtValidAcpiName (
868 ACPI_FUNCTION_ENTRY ();
871 for (i = 0; i < ACPI_NAME_SIZE; i++)
873 if (!AcpiUtValidAcpiChar ((ACPI_CAST_PTR (char, &Name))[i], i))
883 /*******************************************************************************
885 * FUNCTION: AcpiUtRepairName
887 * PARAMETERS: Name - The ACPI name to be repaired
889 * RETURN: Repaired version of the name
891 * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
892 * return the new name. NOTE: the Name parameter must reside in
893 * read/write memory, cannot be a const.
895 * An ACPI Name must consist of valid ACPI characters. We will repair the name
896 * if necessary because we don't want to abort because of this, but we want
897 * all namespace names to be printable. A warning message is appropriate.
899 * This issue came up because there are in fact machines that exhibit
900 * this problem, and we want to be able to enable ACPI support for them,
901 * even though there are a few bad names.
903 ******************************************************************************/
910 BOOLEAN FoundBadChar = FALSE;
913 ACPI_FUNCTION_NAME (UtRepairName);
916 /* Check each character in the name */
918 for (i = 0; i < ACPI_NAME_SIZE; i++)
920 if (AcpiUtValidAcpiChar (Name[i], i))
926 * Replace a bad character with something printable, yet technically
927 * still invalid. This prevents any collisions with existing "good"
928 * names in the namespace.
936 /* Report warning only if in strict mode or debug mode */
938 if (!AcpiGbl_EnableInterpreterSlack)
940 ACPI_WARNING ((AE_INFO,
941 "Found bad character(s) in name, repaired: [%4.4s]\n", Name));
945 ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
946 "Found bad character(s) in name, repaired: [%4.4s]\n", Name));
952 /*******************************************************************************
954 * FUNCTION: AcpiUtStrtoul64
956 * PARAMETERS: String - Null terminated string
957 * Base - Radix of the string: 16 or ACPI_ANY_BASE;
958 * ACPI_ANY_BASE means 'in behalf of ToInteger'
959 * RetInteger - Where the converted integer is returned
961 * RETURN: Status and Converted value
963 * DESCRIPTION: Convert a string into an unsigned value. Performs either a
964 * 32-bit or 64-bit conversion, depending on the current mode
965 * of the interpreter.
966 * NOTE: Does not support Octal strings, not needed.
968 ******************************************************************************/
976 UINT32 ThisDigit = 0;
977 UINT64 ReturnValue = 0;
980 UINT32 ToIntegerOp = (Base == ACPI_ANY_BASE);
981 UINT32 Mode32 = (AcpiGbl_IntegerByteWidth == 4);
982 UINT8 ValidDigits = 0;
987 ACPI_FUNCTION_TRACE_STR (UtStroul64, String);
998 return_ACPI_STATUS (AE_BAD_PARAMETER);
1006 /* Skip over any white space in the buffer */
1008 while ((*String) && (ACPI_IS_SPACE (*String) || *String == '\t'))
1016 * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'.
1017 * We need to determine if it is decimal or hexadecimal.
1019 if ((*String == '0') && (ACPI_TOLOWER (*(String + 1)) == 'x'))
1024 /* Skip over the leading '0x' */
1033 /* Any string left? Check that '0x' is not followed by white space. */
1035 if (!(*String) || ACPI_IS_SPACE (*String) || *String == '\t')
1048 * Perform a 32-bit or 64-bit conversion, depending upon the current
1049 * execution mode of the interpreter
1051 Dividend = (Mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
1053 /* Main loop: convert the string to a 32- or 64-bit integer */
1057 if (ACPI_IS_DIGIT (*String))
1059 /* Convert ASCII 0-9 to Decimal value */
1061 ThisDigit = ((UINT8) *String) - '0';
1063 else if (Base == 10)
1065 /* Digit is out of range; possible in ToInteger case only */
1071 ThisDigit = (UINT8) ACPI_TOUPPER (*String);
1072 if (ACPI_IS_XDIGIT ((char) ThisDigit))
1074 /* Convert ASCII Hex char to value */
1076 ThisDigit = ThisDigit - 'A' + 10;
1095 else if ((ValidDigits == 0) && (ThisDigit == 0) && !SignOf0x)
1104 if (SignOf0x && ((ValidDigits > 16) || ((ValidDigits > 8) && Mode32)))
1107 * This is ToInteger operation case.
1108 * No any restrictions for string-to-integer conversion,
1114 /* Divide the digit into the correct position */
1116 (void) AcpiUtShortDivide ((Dividend - (UINT64) ThisDigit),
1117 Base, &Quotient, NULL);
1119 if (ReturnValue > Quotient)
1131 ReturnValue *= Base;
1132 ReturnValue += ThisDigit;
1136 /* All done, normal exit */
1140 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
1141 ACPI_FORMAT_UINT64 (ReturnValue)));
1143 *RetInteger = ReturnValue;
1144 return_ACPI_STATUS (AE_OK);
1148 /* Base was set/validated above */
1152 return_ACPI_STATUS (AE_BAD_DECIMAL_CONSTANT);
1156 return_ACPI_STATUS (AE_BAD_HEX_CONSTANT);
1161 /*******************************************************************************
1163 * FUNCTION: AcpiUtCreateUpdateStateAndPush
1165 * PARAMETERS: Object - Object to be added to the new state
1166 * Action - Increment/Decrement
1167 * StateList - List the state will be added to
1171 * DESCRIPTION: Create a new state and push it
1173 ******************************************************************************/
1176 AcpiUtCreateUpdateStateAndPush (
1177 ACPI_OPERAND_OBJECT *Object,
1179 ACPI_GENERIC_STATE **StateList)
1181 ACPI_GENERIC_STATE *State;
1184 ACPI_FUNCTION_ENTRY ();
1187 /* Ignore null objects; these are expected */
1194 State = AcpiUtCreateUpdateState (Object, Action);
1197 return (AE_NO_MEMORY);
1200 AcpiUtPushGenericState (StateList, State);
1205 /*******************************************************************************
1207 * FUNCTION: AcpiUtWalkPackageTree
1209 * PARAMETERS: SourceObject - The package to walk
1210 * TargetObject - Target object (if package is being copied)
1211 * WalkCallback - Called once for each package element
1212 * Context - Passed to the callback function
1216 * DESCRIPTION: Walk through a package
1218 ******************************************************************************/
1221 AcpiUtWalkPackageTree (
1222 ACPI_OPERAND_OBJECT *SourceObject,
1224 ACPI_PKG_CALLBACK WalkCallback,
1227 ACPI_STATUS Status = AE_OK;
1228 ACPI_GENERIC_STATE *StateList = NULL;
1229 ACPI_GENERIC_STATE *State;
1231 ACPI_OPERAND_OBJECT *ThisSourceObj;
1234 ACPI_FUNCTION_TRACE (UtWalkPackageTree);
1237 State = AcpiUtCreatePkgState (SourceObject, TargetObject, 0);
1240 return_ACPI_STATUS (AE_NO_MEMORY);
1245 /* Get one element of the package */
1247 ThisIndex = State->Pkg.Index;
1248 ThisSourceObj = (ACPI_OPERAND_OBJECT *)
1249 State->Pkg.SourceObject->Package.Elements[ThisIndex];
1253 * 1) An uninitialized package element. It is completely
1254 * legal to declare a package and leave it uninitialized
1255 * 2) Not an internal object - can be a namespace node instead
1256 * 3) Any type other than a package. Packages are handled in else
1259 if ((!ThisSourceObj) ||
1260 (ACPI_GET_DESCRIPTOR_TYPE (ThisSourceObj) != ACPI_DESC_TYPE_OPERAND) ||
1261 (ThisSourceObj->Common.Type != ACPI_TYPE_PACKAGE))
1263 Status = WalkCallback (ACPI_COPY_TYPE_SIMPLE, ThisSourceObj,
1265 if (ACPI_FAILURE (Status))
1267 return_ACPI_STATUS (Status);
1271 while (State->Pkg.Index >= State->Pkg.SourceObject->Package.Count)
1274 * We've handled all of the objects at this level, This means
1275 * that we have just completed a package. That package may
1276 * have contained one or more packages itself.
1278 * Delete this state and pop the previous state (package).
1280 AcpiUtDeleteGenericState (State);
1281 State = AcpiUtPopGenericState (&StateList);
1283 /* Finished when there are no more states */
1288 * We have handled all of the objects in the top level
1289 * package just add the length of the package objects
1292 return_ACPI_STATUS (AE_OK);
1296 * Go back up a level and move the index past the just
1297 * completed package object.
1304 /* This is a subobject of type package */
1306 Status = WalkCallback (ACPI_COPY_TYPE_PACKAGE, ThisSourceObj,
1308 if (ACPI_FAILURE (Status))
1310 return_ACPI_STATUS (Status);
1314 * Push the current state and create a new one
1315 * The callback above returned a new target package object.
1317 AcpiUtPushGenericState (&StateList, State);
1318 State = AcpiUtCreatePkgState (ThisSourceObj,
1319 State->Pkg.ThisTargetObj, 0);
1322 /* Free any stacked Update State objects */
1326 State = AcpiUtPopGenericState (&StateList);
1327 AcpiUtDeleteGenericState (State);
1329 return_ACPI_STATUS (AE_NO_MEMORY);
1334 /* We should never get here */
1336 return_ACPI_STATUS (AE_AML_INTERNAL);
1340 /*******************************************************************************
1342 * FUNCTION: AcpiError, AcpiException, AcpiWarning, AcpiInfo
1344 * PARAMETERS: ModuleName - Caller's module name (for error output)
1345 * LineNumber - Caller's line number (for error output)
1346 * Format - Printf format string + additional args
1350 * DESCRIPTION: Print message with module/line/version info
1352 ******************************************************************************/
1354 void ACPI_INTERNAL_VAR_XFACE
1356 const char *ModuleName,
1364 AcpiOsPrintf ("ACPI Error: ");
1366 va_start (args, Format);
1367 AcpiOsVprintf (Format, args);
1368 ACPI_COMMON_MSG_SUFFIX;
1372 void ACPI_INTERNAL_VAR_XFACE
1374 const char *ModuleName,
1383 AcpiOsPrintf ("ACPI Exception: %s, ", AcpiFormatException (Status));
1385 va_start (args, Format);
1386 AcpiOsVprintf (Format, args);
1387 ACPI_COMMON_MSG_SUFFIX;
1391 void ACPI_INTERNAL_VAR_XFACE
1393 const char *ModuleName,
1401 AcpiOsPrintf ("ACPI Warning: ");
1403 va_start (args, Format);
1404 AcpiOsVprintf (Format, args);
1405 ACPI_COMMON_MSG_SUFFIX;
1409 void ACPI_INTERNAL_VAR_XFACE
1411 const char *ModuleName,
1419 /* Temporarily hide too verbose printfs. */
1424 AcpiOsPrintf ("ACPI: ");
1426 va_start (args, Format);
1427 AcpiOsVprintf (Format, args);
1428 AcpiOsPrintf ("\n");
1432 ACPI_EXPORT_SYMBOL (AcpiError)
1433 ACPI_EXPORT_SYMBOL (AcpiException)
1434 ACPI_EXPORT_SYMBOL (AcpiWarning)
1435 ACPI_EXPORT_SYMBOL (AcpiInfo)
1438 /*******************************************************************************
1440 * FUNCTION: AcpiUtPredefinedWarning
1442 * PARAMETERS: ModuleName - Caller's module name (for error output)
1443 * LineNumber - Caller's line number (for error output)
1444 * Pathname - Full pathname to the node
1445 * NodeFlags - From Namespace node for the method/object
1446 * Format - Printf format string + additional args
1450 * DESCRIPTION: Warnings for the predefined validation module. Messages are
1451 * only emitted the first time a problem with a particular
1452 * method/object is detected. This prevents a flood of error
1453 * messages for methods that are repeatedly evaluated.
1455 ******************************************************************************/
1457 void ACPI_INTERNAL_VAR_XFACE
1458 AcpiUtPredefinedWarning (
1459 const char *ModuleName,
1470 * Warning messages for this method/object will be disabled after the
1471 * first time a validation fails or an object is successfully repaired.
1473 if (NodeFlags & ANOBJ_EVALUATED)
1478 AcpiOsPrintf ("ACPI Warning for %s: ", Pathname);
1480 va_start (args, Format);
1481 AcpiOsVprintf (Format, args);
1482 ACPI_COMMON_MSG_SUFFIX;
1486 /*******************************************************************************
1488 * FUNCTION: AcpiUtPredefinedInfo
1490 * PARAMETERS: ModuleName - Caller's module name (for error output)
1491 * LineNumber - Caller's line number (for error output)
1492 * Pathname - Full pathname to the node
1493 * NodeFlags - From Namespace node for the method/object
1494 * Format - Printf format string + additional args
1498 * DESCRIPTION: Info messages for the predefined validation module. Messages
1499 * are only emitted the first time a problem with a particular
1500 * method/object is detected. This prevents a flood of
1501 * messages for methods that are repeatedly evaluated.
1503 ******************************************************************************/
1505 void ACPI_INTERNAL_VAR_XFACE
1506 AcpiUtPredefinedInfo (
1507 const char *ModuleName,
1518 * Warning messages for this method/object will be disabled after the
1519 * first time a validation fails or an object is successfully repaired.
1521 if (NodeFlags & ANOBJ_EVALUATED)
1526 AcpiOsPrintf ("ACPI Info for %s: ", Pathname);
1528 va_start (args, Format);
1529 AcpiOsVprintf (Format, args);
1530 ACPI_COMMON_MSG_SUFFIX;