| 0,0 → 1,438 |
|---|
| |
| /****************************************************************************** |
| * |
| * Module Name: exoparg6 - AML execution - opcodes with 6 arguments |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
| * All rights reserved. |
| * |
| * 2. License |
| * |
| * 2.1. This is your license from Intel Corp. under its intellectual property |
| * rights. You may have additional license terms from the party that provided |
| * you this software, covering your right to use that party's intellectual |
| * property rights. |
| * |
| * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
| * copy of the source code appearing in this file ("Covered Code") an |
| * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
| * base code distributed originally by Intel ("Original Intel Code") to copy, |
| * make derivatives, distribute, use and display any portion of the Covered |
| * Code in any form, with the right to sublicense such rights; and |
| * |
| * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
| * license (with the right to sublicense), under only those claims of Intel |
| * patents that are infringed by the Original Intel Code, to make, use, sell, |
| * offer to sell, and import the Covered Code and derivative works thereof |
| * solely to the minimum extent necessary to exercise the above copyright |
| * license, and in no event shall the patent license extend to any additions |
| * to or modifications of the Original Intel Code. No other license or right |
| * is granted directly or by implication, estoppel or otherwise; |
| * |
| * The above copyright and patent license is granted only if the following |
| * conditions are met: |
| * |
| * 3. Conditions |
| * |
| * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification with rights to further distribute source must include |
| * the above Copyright Notice, the above License, this list of Conditions, |
| * and the following Disclaimer and Export Compliance provision. In addition, |
| * Licensee must cause all Covered Code to which Licensee contributes to |
| * contain a file documenting the changes Licensee made to create that Covered |
| * Code and the date of any change. Licensee must include in that file the |
| * documentation of any changes made by any predecessor Licensee. Licensee |
| * must include a prominent statement that the modification is derived, |
| * directly or indirectly, from Original Intel Code. |
| * |
| * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification without rights to further distribute source must |
| * include the following Disclaimer and Export Compliance provision in the |
| * documentation and/or other materials provided with distribution. In |
| * addition, Licensee may not authorize further sublicense of source of any |
| * portion of the Covered Code, and must include terms to the effect that the |
| * license from Licensee to its licensee is limited to the intellectual |
| * property embodied in the software Licensee provides to its licensee, and |
| * not to intellectual property embodied in modifications its licensee may |
| * make. |
| * |
| * 3.3. Redistribution of Executable. Redistribution in executable form of any |
| * substantial portion of the Covered Code or modification must reproduce the |
| * above Copyright Notice, and the following Disclaimer and Export Compliance |
| * provision in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3.4. Intel retains all right, title, and interest in and to the Original |
| * Intel Code. |
| * |
| * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
| * Intel shall be used in advertising or otherwise to promote the sale, use or |
| * other dealings in products derived from or relating to the Covered Code |
| * without prior written authorization from Intel. |
| * |
| * 4. Disclaimer and Export Compliance |
| * |
| * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
| * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
| * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
| * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
| |
| * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
| * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
| * PARTICULAR PURPOSE. |
| * |
| * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
| * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
| * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
| * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
| * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
| * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
| * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
| * LIMITED REMEDY. |
| * |
| * 4.3. Licensee shall not export, either directly or indirectly, any of this |
| * software or system incorporating such software without first obtaining any |
| * required license or other approval from the U. S. Department of Commerce or |
| * any other agency or department of the United States Government. In the |
| * event Licensee exports any such software from the United States or |
| * re-exports any such software from a foreign destination, Licensee shall |
| * ensure that the distribution and export/re-export of the software is in |
| * compliance with all laws, regulations, orders, or other restrictions of the |
| * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
| * any of its subsidiaries will export/re-export any technical data, process, |
| * software, or service, directly or indirectly, to any country for which the |
| * United States government or any agency thereof requires an export license, |
| * other governmental approval, or letter of assurance, without first obtaining |
| * such license, approval or letter. |
| * |
| *****************************************************************************/ |
| |
| #define __EXOPARG6_C__ |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "acinterp.h" |
| #include "acparser.h" |
| #include "amlcode.h" |
| |
| |
| #define _COMPONENT ACPI_EXECUTER |
| ACPI_MODULE_NAME ("exoparg6") |
| |
| |
| /*! |
| * Naming convention for AML interpreter execution routines. |
| * |
| * The routines that begin execution of AML opcodes are named with a common |
| * convention based upon the number of arguments, the number of target operands, |
| * and whether or not a value is returned: |
| * |
| * AcpiExOpcode_xA_yT_zR |
| * |
| * Where: |
| * |
| * xA - ARGUMENTS: The number of arguments (input operands) that are |
| * required for this opcode type (1 through 6 args). |
| * yT - TARGETS: The number of targets (output operands) that are required |
| * for this opcode type (0, 1, or 2 targets). |
| * zR - RETURN VALUE: Indicates whether this opcode type returns a value |
| * as the function return (0 or 1). |
| * |
| * The AcpiExOpcode* functions are called via the Dispatcher component with |
| * fully resolved operands. |
| !*/ |
| |
| /* Local prototypes */ |
| |
| static BOOLEAN |
| AcpiExDoMatch ( |
| UINT32 MatchOp, |
| ACPI_OPERAND_OBJECT *PackageObj, |
| ACPI_OPERAND_OBJECT *MatchObj); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiExDoMatch |
| * |
| * PARAMETERS: MatchOp - The AML match operand |
| * PackageObj - Object from the target package |
| * MatchObj - Object to be matched |
| * |
| * RETURN: TRUE if the match is successful, FALSE otherwise |
| * |
| * DESCRIPTION: Implements the low-level match for the ASL Match operator. |
| * Package elements will be implicitly converted to the type of |
| * the match object (Integer/Buffer/String). |
| * |
| ******************************************************************************/ |
| |
| static BOOLEAN |
| AcpiExDoMatch ( |
| UINT32 MatchOp, |
| ACPI_OPERAND_OBJECT *PackageObj, |
| ACPI_OPERAND_OBJECT *MatchObj) |
| { |
| BOOLEAN LogicalResult = TRUE; |
| ACPI_STATUS Status; |
| |
| |
| /* |
| * Note: Since the PackageObj/MatchObj ordering is opposite to that of |
| * the standard logical operators, we have to reverse them when we call |
| * DoLogicalOp in order to make the implicit conversion rules work |
| * correctly. However, this means we have to flip the entire equation |
| * also. A bit ugly perhaps, but overall, better than fussing the |
| * parameters around at runtime, over and over again. |
| * |
| * Below, P[i] refers to the package element, M refers to the Match object. |
| */ |
| switch (MatchOp) |
| { |
| case MATCH_MTR: |
| |
| /* Always true */ |
| |
| break; |
| |
| case MATCH_MEQ: |
| |
| /* |
| * True if equal: (P[i] == M) |
| * Change to: (M == P[i]) |
| */ |
| Status = AcpiExDoLogicalOp (AML_LEQUAL_OP, MatchObj, PackageObj, |
| &LogicalResult); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (FALSE); |
| } |
| break; |
| |
| case MATCH_MLE: |
| |
| /* |
| * True if less than or equal: (P[i] <= M) (P[i] NotGreater than M) |
| * Change to: (M >= P[i]) (M NotLess than P[i]) |
| */ |
| Status = AcpiExDoLogicalOp (AML_LLESS_OP, MatchObj, PackageObj, |
| &LogicalResult); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (FALSE); |
| } |
| LogicalResult = (BOOLEAN) !LogicalResult; |
| break; |
| |
| case MATCH_MLT: |
| |
| /* |
| * True if less than: (P[i] < M) |
| * Change to: (M > P[i]) |
| */ |
| Status = AcpiExDoLogicalOp (AML_LGREATER_OP, MatchObj, PackageObj, |
| &LogicalResult); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (FALSE); |
| } |
| break; |
| |
| case MATCH_MGE: |
| |
| /* |
| * True if greater than or equal: (P[i] >= M) (P[i] NotLess than M) |
| * Change to: (M <= P[i]) (M NotGreater than P[i]) |
| */ |
| Status = AcpiExDoLogicalOp (AML_LGREATER_OP, MatchObj, PackageObj, |
| &LogicalResult); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (FALSE); |
| } |
| LogicalResult = (BOOLEAN)!LogicalResult; |
| break; |
| |
| case MATCH_MGT: |
| |
| /* |
| * True if greater than: (P[i] > M) |
| * Change to: (M < P[i]) |
| */ |
| Status = AcpiExDoLogicalOp (AML_LLESS_OP, MatchObj, PackageObj, |
| &LogicalResult); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (FALSE); |
| } |
| break; |
| |
| default: |
| |
| /* Undefined */ |
| |
| return (FALSE); |
| } |
| |
| return LogicalResult; |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiExOpcode_6A_0T_1R |
| * |
| * PARAMETERS: WalkState - Current walk state |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiExOpcode_6A_0T_1R ( |
| ACPI_WALK_STATE *WalkState) |
| { |
| ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
| ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
| ACPI_STATUS Status = AE_OK; |
| UINT64 Index; |
| ACPI_OPERAND_OBJECT *ThisElement; |
| |
| |
| ACPI_FUNCTION_TRACE_STR (ExOpcode_6A_0T_1R, |
| AcpiPsGetOpcodeName (WalkState->Opcode)); |
| |
| |
| switch (WalkState->Opcode) |
| { |
| case AML_MATCH_OP: |
| /* |
| * Match (SearchPkg[0], MatchOp1[1], MatchObj1[2], |
| * MatchOp2[3], MatchObj2[4], StartIndex[5]) |
| */ |
| |
| /* Validate both Match Term Operators (MTR, MEQ, etc.) */ |
| |
| if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) || |
| (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR)) |
| { |
| ACPI_ERROR ((AE_INFO, "Match operator out of range")); |
| Status = AE_AML_OPERAND_VALUE; |
| goto Cleanup; |
| } |
| |
| /* Get the package StartIndex, validate against the package length */ |
| |
| Index = Operand[5]->Integer.Value; |
| if (Index >= Operand[0]->Package.Count) |
| { |
| ACPI_ERROR ((AE_INFO, |
| "Index (0x%8.8X%8.8X) beyond package end (0x%X)", |
| ACPI_FORMAT_UINT64 (Index), Operand[0]->Package.Count)); |
| Status = AE_AML_PACKAGE_LIMIT; |
| goto Cleanup; |
| } |
| |
| /* Create an integer for the return value */ |
| /* Default return value is ACPI_UINT64_MAX if no match found */ |
| |
| ReturnDesc = AcpiUtCreateIntegerObject (ACPI_UINT64_MAX); |
| if (!ReturnDesc) |
| { |
| Status = AE_NO_MEMORY; |
| goto Cleanup; |
| |
| } |
| |
| /* |
| * Examine each element until a match is found. Both match conditions |
| * must be satisfied for a match to occur. Within the loop, |
| * "continue" signifies that the current element does not match |
| * and the next should be examined. |
| * |
| * Upon finding a match, the loop will terminate via "break" at |
| * the bottom. If it terminates "normally", MatchValue will be |
| * ACPI_UINT64_MAX (Ones) (its initial value) indicating that no |
| * match was found. |
| */ |
| for ( ; Index < Operand[0]->Package.Count; Index++) |
| { |
| /* Get the current package element */ |
| |
| ThisElement = Operand[0]->Package.Elements[Index]; |
| |
| /* Treat any uninitialized (NULL) elements as non-matching */ |
| |
| if (!ThisElement) |
| { |
| continue; |
| } |
| |
| /* |
| * Both match conditions must be satisfied. Execution of a continue |
| * (proceed to next iteration of enclosing for loop) signifies a |
| * non-match. |
| */ |
| if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value, |
| ThisElement, Operand[2])) |
| { |
| continue; |
| } |
| |
| if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value, |
| ThisElement, Operand[4])) |
| { |
| continue; |
| } |
| |
| /* Match found: Index is the return value */ |
| |
| ReturnDesc->Integer.Value = Index; |
| break; |
| } |
| break; |
| |
| |
| case AML_LOAD_TABLE_OP: |
| |
| Status = AcpiExLoadTableOp (WalkState, &ReturnDesc); |
| break; |
| |
| |
| default: |
| |
| ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", |
| WalkState->Opcode)); |
| Status = AE_AML_BAD_OPCODE; |
| goto Cleanup; |
| } |
| |
| |
| Cleanup: |
| |
| /* Delete return object on error */ |
| |
| if (ACPI_FAILURE (Status)) |
| { |
| AcpiUtRemoveReference (ReturnDesc); |
| } |
| |
| /* Save return object on success */ |
| |
| else |
| { |
| WalkState->ResultObj = ReturnDesc; |
| } |
| |
| return_ACPI_STATUS (Status); |
| } |