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Diffstat (limited to 'sys/contrib/dev/acpica/components/executer/exoparg6.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/executer/exoparg6.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg6.c b/sys/contrib/dev/acpica/components/executer/exoparg6.c new file mode 100644 index 0000000..f1afbea --- /dev/null +++ b/sys/contrib/dev/acpica/components/executer/exoparg6.c @@ -0,0 +1,365 @@ + +/****************************************************************************** + * + * Module Name: exoparg6 - AML execution - opcodes with 6 arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define __EXOPARG6_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acinterp.h> +#include <contrib/dev/acpica/include/acparser.h> +#include <contrib/dev/acpica/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); +} |
