diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exoparg6.c')
-rw-r--r-- | sys/contrib/dev/acpica/exoparg6.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exoparg6.c b/sys/contrib/dev/acpica/exoparg6.c new file mode 100644 index 0000000..e144bcf --- /dev/null +++ b/sys/contrib/dev/acpica/exoparg6.c @@ -0,0 +1,441 @@ + +/****************************************************************************** + * + * Module Name: exoparg6 - AML execution - opcodes with 6 arguments + * $Revision: 1.29 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, 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 <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/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; + ACPI_INTEGER 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 (%X%8.8X) beyond package end (%X)", + ACPI_FORMAT_UINT64 (Index), Operand[0]->Package.Count)); + Status = AE_AML_PACKAGE_LIMIT; + goto Cleanup; + } + + /* Create an integer for the return value */ + + ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); + if (!ReturnDesc) + { + Status = AE_NO_MEMORY; + goto Cleanup; + + } + + /* Default return value if no match found */ + + ReturnDesc->Integer.Value = ACPI_INTEGER_MAX; + + /* + * 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_INTEGER_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 %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); +} |