+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exoparg3 - AML execution - opcodes with 3 arguments
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2017, 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.
- */
-
-#include "acpi.h"
-#include "accommon.h"
-#include "acinterp.h"
-#include "acparser.h"
-#include "amlcode.h"
-
-
-#define _COMPONENT ACPI_EXECUTER
- ACPI_MODULE_NAME ("exoparg3")
-
-
-/*!
- * 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.
-!*/
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiExOpcode_3A_0T_0R
- *
- * PARAMETERS: WalkState - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Triadic operator (3 operands)
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiExOpcode_3A_0T_0R (
- ACPI_WALK_STATE *WalkState)
-{
- ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
- ACPI_SIGNAL_FATAL_INFO *Fatal;
- ACPI_STATUS Status = AE_OK;
-
-
- ACPI_FUNCTION_TRACE_STR (ExOpcode_3A_0T_0R,
- AcpiPsGetOpcodeName (WalkState->Opcode));
-
-
- switch (WalkState->Opcode)
- {
- case AML_FATAL_OP: /* Fatal (FatalType FatalCode FatalArg) */
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "FatalOp: Type %X Code %X Arg %X "
- "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
- (UINT32) Operand[0]->Integer.Value,
- (UINT32) Operand[1]->Integer.Value,
- (UINT32) Operand[2]->Integer.Value));
-
- Fatal = ACPI_ALLOCATE (sizeof (ACPI_SIGNAL_FATAL_INFO));
- if (Fatal)
- {
- Fatal->Type = (UINT32) Operand[0]->Integer.Value;
- Fatal->Code = (UINT32) Operand[1]->Integer.Value;
- Fatal->Argument = (UINT32) Operand[2]->Integer.Value;
- }
-
- /* Always signal the OS! */
-
- Status = AcpiOsSignal (ACPI_SIGNAL_FATAL, Fatal);
-
- /* Might return while OS is shutting down, just continue */
-
- ACPI_FREE (Fatal);
- goto Cleanup;
-
- case AML_EXTERNAL_OP:
- /*
- * If the interpreter sees this opcode, just ignore it. The External
- * op is intended for use by disassemblers in order to properly
- * disassemble control method invocations. The opcode or group of
- * opcodes should be surrounded by an "if (0)" clause to ensure that
- * AML interpreters never see the opcode. Thus, something is
- * wrong if an external opcode ever gets here.
- */
- ACPI_ERROR ((AE_INFO, "Executed External Op"));
- Status = AE_OK;
- goto Cleanup;
-
- default:
-
- ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
- WalkState->Opcode));
-
- Status = AE_AML_BAD_OPCODE;
- goto Cleanup;
- }
-
-
-Cleanup:
-
- return_ACPI_STATUS (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiExOpcode_3A_1T_1R
- *
- * PARAMETERS: WalkState - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Triadic operator (3 operands)
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiExOpcode_3A_1T_1R (
- ACPI_WALK_STATE *WalkState)
-{
- ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
- ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
- char *Buffer = NULL;
- ACPI_STATUS Status = AE_OK;
- UINT64 Index;
- ACPI_SIZE Length;
-
-
- ACPI_FUNCTION_TRACE_STR (ExOpcode_3A_1T_1R,
- AcpiPsGetOpcodeName (WalkState->Opcode));
-
-
- switch (WalkState->Opcode)
- {
- case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */
- /*
- * Create the return object. The Source operand is guaranteed to be
- * either a String or a Buffer, so just use its type.
- */
- ReturnDesc = AcpiUtCreateInternalObject (
- (Operand[0])->Common.Type);
- if (!ReturnDesc)
- {
- Status = AE_NO_MEMORY;
- goto Cleanup;
- }
-
- /* Get the Integer values from the objects */
-
- Index = Operand[1]->Integer.Value;
- Length = (ACPI_SIZE) Operand[2]->Integer.Value;
-
- /*
- * If the index is beyond the length of the String/Buffer, or if the
- * requested length is zero, return a zero-length String/Buffer
- */
- if (Index >= Operand[0]->String.Length)
- {
- Length = 0;
- }
-
- /* Truncate request if larger than the actual String/Buffer */
-
- else if ((Index + Length) > Operand[0]->String.Length)
- {
- Length =
- (ACPI_SIZE) Operand[0]->String.Length - (ACPI_SIZE) Index;
- }
-
- /* Strings always have a sub-pointer, not so for buffers */
-
- switch ((Operand[0])->Common.Type)
- {
- case ACPI_TYPE_STRING:
-
- /* Always allocate a new buffer for the String */
-
- Buffer = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) Length + 1);
- if (!Buffer)
- {
- Status = AE_NO_MEMORY;
- goto Cleanup;
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* If the requested length is zero, don't allocate a buffer */
-
- if (Length > 0)
- {
- /* Allocate a new buffer for the Buffer */
-
- Buffer = ACPI_ALLOCATE_ZEROED (Length);
- if (!Buffer)
- {
- Status = AE_NO_MEMORY;
- goto Cleanup;
- }
- }
- break;
-
- default: /* Should not happen */
-
- Status = AE_AML_OPERAND_TYPE;
- goto Cleanup;
- }
-
- if (Buffer)
- {
- /* We have a buffer, copy the portion requested */
-
- memcpy (Buffer,
- Operand[0]->String.Pointer + Index, Length);
- }
-
- /* Set the length of the new String/Buffer */
-
- ReturnDesc->String.Pointer = Buffer;
- ReturnDesc->String.Length = (UINT32) Length;
-
- /* Mark buffer initialized */
-
- ReturnDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
- break;
-
- default:
-
- ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
- WalkState->Opcode));
-
- Status = AE_AML_BAD_OPCODE;
- goto Cleanup;
- }
-
- /* Store the result in the target */
-
- Status = AcpiExStore (ReturnDesc, Operand[3], WalkState);
-
-Cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE (Status) || WalkState->ResultObj)
- {
- AcpiUtRemoveReference (ReturnDesc);
- WalkState->ResultObj = NULL;
- }
- else
- {
- /* Set the return object and exit */
-
- WalkState->ResultObj = ReturnDesc;
- }
-
- return_ACPI_STATUS (Status);
-}
projects / reactos.git / blobdiff