/****************************************************************************** * * Module Name: asloperands - AML operand processing * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2022, 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. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * 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. * * 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 MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * 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 DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #include #include "aslcompiler.y.h" #include #define _COMPONENT ACPI_COMPILER ACPI_MODULE_NAME ("asloperands") /* Local prototypes */ static void OpnDoField ( ACPI_PARSE_OBJECT *Op); static void OpnDoBankField ( ACPI_PARSE_OBJECT *Op); static void OpnDoBuffer ( ACPI_PARSE_OBJECT *Op); static void OpnDoDefinitionBlock ( ACPI_PARSE_OBJECT *Op); static void OpnDoFieldCommon ( ACPI_PARSE_OBJECT *FieldOp, ACPI_PARSE_OBJECT *Op); static void OpnDoIndexField ( ACPI_PARSE_OBJECT *Op); static void OpnDoLoadTable ( ACPI_PARSE_OBJECT *Op); static void OpnDoMethod ( ACPI_PARSE_OBJECT *Op); static void OpnDoMutex ( ACPI_PARSE_OBJECT *Op); static void OpnDoRegion ( ACPI_PARSE_OBJECT *Op); static void OpnAttachNameToNode ( ACPI_PARSE_OBJECT *Op); /******************************************************************************* * * FUNCTION: OpnDoMutex * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the operands for the MUTEX ASL keyword. * ******************************************************************************/ static void OpnDoMutex ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; Next = Op->Asl.Child; Next = Next->Asl.Next; if (Next->Asl.Value.Integer > 15) { AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL); } return; } /******************************************************************************* * * FUNCTION: OpnDoMethod * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the operands for the METHOD ASL keyword. * ******************************************************************************/ static void OpnDoMethod ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; /* Optional arguments for this opcode with defaults */ UINT8 NumArgs = 0; UINT8 Serialized = 0; UINT8 Concurrency = 0; UINT8 MethodFlags; /* Opcode and package length first */ /* Method name */ Next = Op->Asl.Child; /* Num args */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) { NumArgs = (UINT8) Next->Asl.Value.Integer; Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; } /* Serialized Flag */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) { Serialized = (UINT8) Next->Asl.Value.Integer; Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; } /* Concurrency value (valid values are 0-15) */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) { /* This is a ByteConstExpr, so eval the constant now */ OpcAmlConstantWalk (Next, 0, NULL); if (Next->Asl.Value.Integer > 15) { AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL); } Concurrency = (UINT8) Next->Asl.Value.Integer; } /* Put the bits in their proper places */ MethodFlags = (UINT8) ((NumArgs & 0x7) | ((Serialized & 0x1) << 3) | ((Concurrency & 0xF) << 4)); /* Use the last node for the combined flags byte */ Next->Asl.Value.Integer = MethodFlags; Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE; Next->Asl.AmlLength = 1; Next->Asl.ParseOpcode = PARSEOP_RAW_DATA; /* Save the arg count in the first node */ Op->Asl.Extra = NumArgs; } /******************************************************************************* * * FUNCTION: OpnDoFieldCommon * * PARAMETERS: FieldOp - Node for an ASL field * Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the various field keywords, * FIELD, BANKFIELD, INDEXFIELD * ******************************************************************************/ static void OpnDoFieldCommon ( ACPI_PARSE_OBJECT *FieldOp, ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; ACPI_PARSE_OBJECT *PkgLengthNode; UINT32 CurrentBitOffset; UINT32 NewBitOffset; UINT8 AccessType; UINT8 LockRule; UINT8 UpdateRule; UINT8 FieldFlags; UINT32 MinimumLength; /* AccessType -- not optional, so no need to check for DEFAULT_ARG */ AccessType = (UINT8) Op->Asl.Value.Integer; Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; /* Set the access type in the parent (field) node for use later */ FieldOp->Asl.Value.Integer = AccessType; /* LockRule -- not optional, so no need to check for DEFAULT_ARG */ Next = Op->Asl.Next; LockRule = (UINT8) Next->Asl.Value.Integer; Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; /* UpdateRule -- not optional, so no need to check for DEFAULT_ARG */ Next = Next->Asl.Next; UpdateRule = (UINT8) Next->Asl.Value.Integer; /* * Generate the flags byte. The various fields are already * in the right bit position via translation from the * keywords by the parser. */ FieldFlags = (UINT8) (AccessType | LockRule | UpdateRule); /* Use the previous node to be the FieldFlags node */ /* Set the node to RAW_DATA */ Next->Asl.Value.Integer = FieldFlags; Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE; Next->Asl.AmlLength = 1; Next->Asl.ParseOpcode = PARSEOP_RAW_DATA; /* Process the FieldUnitList */ Next = Next->Asl.Next; CurrentBitOffset = 0; while (Next) { /* Save the offset of this field unit */ Next->Asl.ExtraValue = CurrentBitOffset; switch (Next->Asl.ParseOpcode) { case PARSEOP_ACCESSAS: PkgLengthNode = Next->Asl.Child; AccessType = (UINT8) PkgLengthNode->Asl.Value.Integer; /* Nothing additional to do */ break; case PARSEOP_OFFSET: /* New offset into the field */ PkgLengthNode = Next->Asl.Child; NewBitOffset = ((UINT32) PkgLengthNode->Asl.Value.Integer) * 8; /* * Examine the specified offset in relation to the * current offset counter. */ if (NewBitOffset < CurrentBitOffset) { /* * Not allowed to specify a backwards offset! * Issue error and ignore this node. */ AslError (ASL_ERROR, ASL_MSG_BACKWARDS_OFFSET, PkgLengthNode, NULL); Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; } #ifdef _OBSOLETE_CODE /* * January 2022: removed this check due to complaints by users * for too many (invalid) remarks. */ else if (NewBitOffset == CurrentBitOffset) { /* * This Offset() operator is redundant and not needed, * because the offset value is the same as the current * offset. */ AslError (ASL_REMARK, ASL_MSG_OFFSET, PkgLengthNode, NULL); if (AslGbl_OptimizeTrivialParseNodes) { /* * Optimize this Offset() operator by removing/ignoring * it. Set the related nodes to default. */ Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; AslError (ASL_OPTIMIZATION, ASL_MSG_OFFSET, PkgLengthNode, "Optimizer has removed statement"); } else { /* Optimization is disabled, treat as a valid Offset */ PkgLengthNode->Asl.Value.Integer = NewBitOffset - CurrentBitOffset; CurrentBitOffset = NewBitOffset; } } #endif else { /* * Valid new offset - set the value to be inserted into the AML * and update the offset counter. */ PkgLengthNode->Asl.Value.Integer = NewBitOffset - CurrentBitOffset; CurrentBitOffset = NewBitOffset; } break; case PARSEOP_NAMESEG: case PARSEOP_RESERVED_BYTES: /* Named or reserved field entry */ PkgLengthNode = Next->Asl.Child; NewBitOffset = (UINT32) PkgLengthNode->Asl.Value.Integer; CurrentBitOffset += NewBitOffset; if ((NewBitOffset == 0) && (Next->Asl.ParseOpcode == PARSEOP_RESERVED_BYTES) && AslGbl_OptimizeTrivialParseNodes) { /* * Unnamed field with a bit length of zero. We can * safely just ignore this. However, we will not ignore * a named field of zero length, we don't want to just * toss out a name. */ Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; break; } /* Save the current AccessAs value for error checking later */ switch (AccessType) { case AML_FIELD_ACCESS_ANY: case AML_FIELD_ACCESS_BYTE: case AML_FIELD_ACCESS_BUFFER: default: MinimumLength = 8; break; case AML_FIELD_ACCESS_WORD: MinimumLength = 16; break; case AML_FIELD_ACCESS_DWORD: MinimumLength = 32; break; case AML_FIELD_ACCESS_QWORD: MinimumLength = 64; break; } PkgLengthNode->Asl.ExtraValue = MinimumLength; break; default: /* All supported field opcodes must appear above */ break; } /* Move on to next entry in the field list */ Next = Next->Asl.Next; } } /******************************************************************************* * * FUNCTION: OpnDoField * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the FIELD ASL keyword * ******************************************************************************/ static void OpnDoField ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; /* Opcode is parent node */ /* First child is field name */ Next = Op->Asl.Child; /* Second child is the AccessType */ OpnDoFieldCommon (Op, Next->Asl.Next); } /******************************************************************************* * * FUNCTION: OpnDoIndexField * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the INDEXFIELD ASL keyword * ******************************************************************************/ static void OpnDoIndexField ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; /* Opcode is parent node */ /* First child is the index name */ Next = Op->Asl.Child; /* Second child is the data name */ Next = Next->Asl.Next; /* Third child is the AccessType */ OpnDoFieldCommon (Op, Next->Asl.Next); } /******************************************************************************* * * FUNCTION: OpnDoBankField * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the BANKFIELD ASL keyword * ******************************************************************************/ static void OpnDoBankField ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; /* Opcode is parent node */ /* First child is the region name */ Next = Op->Asl.Child; /* Second child is the bank name */ Next = Next->Asl.Next; /* Third child is the bank value */ Next = Next->Asl.Next; /* Fourth child is the AccessType */ OpnDoFieldCommon (Op, Next->Asl.Next); } /******************************************************************************* * * FUNCTION: OpnDoRegion * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Tries to get the length of the region. Can only do this at * compile time if the length is a constant. * ******************************************************************************/ static void OpnDoRegion ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; ACPI_ADR_SPACE_TYPE SpaceId; /* Opcode is parent node */ /* First child is the region name */ Next = Op->Asl.Child; /* Second child is the space ID */ Next = Next->Asl.Next; SpaceId = (ACPI_ADR_SPACE_TYPE) Next->Common.Value.Integer; /* Third child is the region offset */ Next = Next->Asl.Next; /* Fourth child is the region length */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode == PARSEOP_INTEGER) { /* Check for zero length */ Op->Asl.Value.Integer = Next->Asl.Value.Integer; if (!Op->Asl.Value.Integer && (SpaceId < ACPI_NUM_PREDEFINED_REGIONS)) { AslError (ASL_ERROR, ASL_MSG_REGION_LENGTH, Op, NULL); } } else { Op->Asl.Value.Integer = ACPI_UINT64_MAX; } } /******************************************************************************* * * FUNCTION: OpnDoBuffer * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the BUFFER ASL keyword. We * build a single raw byte buffer from the initialization nodes, * each parse node contains a buffer byte. * ******************************************************************************/ static void OpnDoBuffer ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *InitializerOp; ACPI_PARSE_OBJECT *BufferLengthOp; /* Optional arguments for this opcode with defaults */ UINT32 BufferLength = 0; /* Opcode and package length first */ /* Buffer Length is next, followed by the initializer list */ BufferLengthOp = Op->Asl.Child; InitializerOp = BufferLengthOp->Asl.Next; /* * If the BufferLength is not an INTEGER or was not specified in the ASL * (DEFAULT_ARG), it is a TermArg that is * evaluated at run-time, and we are therefore finished. */ if ((BufferLengthOp->Asl.ParseOpcode != PARSEOP_INTEGER) && (BufferLengthOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)) { return; } /* * We want to count the number of items in the initializer list, because if * it is larger than the buffer length, we will define the buffer size * to be the size of the initializer list (as per the ACPI Specification) */ switch (InitializerOp->Asl.ParseOpcode) { case PARSEOP_INTEGER: case PARSEOP_BYTECONST: case PARSEOP_WORDCONST: case PARSEOP_DWORDCONST: /* The peer list contains the byte list (if any...) */ while (InitializerOp) { /* For buffers, this is a list of raw bytes */ InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE; InitializerOp->Asl.AmlLength = 1; InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA; BufferLength++; InitializerOp = ASL_GET_PEER_NODE (InitializerOp); } break; case PARSEOP_STRING_LITERAL: /* * Only one initializer, the string. Buffer must be big enough to hold * the string plus the null termination byte */ BufferLength = strlen (InitializerOp->Asl.Value.String) + 1; InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER; InitializerOp->Asl.AmlLength = BufferLength; InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA; break; case PARSEOP_RAW_DATA: /* Buffer nodes are already initialized (e.g. Unicode operator) */ return; case PARSEOP_DEFAULT_ARG: break; default: AslError (ASL_ERROR, ASL_MSG_INVALID_OPERAND, InitializerOp, "Unknown buffer initializer opcode"); printf ("Unknown buffer initializer opcode [%s]\n", UtGetOpName (InitializerOp->Asl.ParseOpcode)); return; } /* Check if initializer list is longer than the buffer length */ if (BufferLengthOp->Asl.Value.Integer > BufferLength) { BufferLength = (UINT32) BufferLengthOp->Asl.Value.Integer; } if (!BufferLength) { /* No length AND no items -- issue notice */ AslError (ASL_REMARK, ASL_MSG_BUFFER_LENGTH, BufferLengthOp, NULL); /* But go ahead and put the buffer length of zero into the AML */ } /* * Just set the buffer size node to be the buffer length, regardless * of whether it was previously an integer or a default_arg placeholder */ BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER; BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP; BufferLengthOp->Asl.Value.Integer = BufferLength; (void) OpcSetOptimalIntegerSize (BufferLengthOp); UtSetParseOpName (BufferLengthOp); /* Remaining nodes are handled via the tree walk */ } /******************************************************************************* * * FUNCTION: OpnDoPackage * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the PACKAGE ASL keyword. NOTE: * can only be called after constants have been folded, to ensure * that the PackageLength operand has been fully reduced. * ******************************************************************************/ void OpnDoPackage ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *InitializerOp; ACPI_PARSE_OBJECT *PackageLengthOp; UINT32 PackageLength = 0; /* Opcode and package length first, followed by the initializer list */ PackageLengthOp = Op->Asl.Child; InitializerOp = PackageLengthOp->Asl.Next; /* Count the number of items in the initializer list */ if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) { /* The peer list contains the byte list (if any...) */ while (InitializerOp) { PackageLength++; InitializerOp = InitializerOp->Asl.Next; } } /* If package length is a constant, compare to the initializer list */ if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) || (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST)) { if (PackageLengthOp->Asl.Value.Integer > PackageLength) { /* * Allow package length to be longer than the initializer * list -- but if the length of initializer list is nonzero, * issue a message since this is probably a coding error, * even though technically legal. */ if (PackageLength > 0) { AslError (ASL_REMARK, ASL_MSG_LIST_LENGTH_SHORT, PackageLengthOp, NULL); } PackageLength = (UINT32) PackageLengthOp->Asl.Value.Integer; } else if (PackageLengthOp->Asl.Value.Integer < PackageLength) { /* * The package length is smaller than the length of the * initializer list. This is an error as per the ACPI spec. */ AslError (ASL_ERROR, ASL_MSG_LIST_LENGTH_LONG, PackageLengthOp, NULL); } } if (PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) { /* * This is the case if the PackageLength was left empty - Package() * The package length becomes the length of the initializer list */ Op->Asl.Child->Asl.ParseOpcode = PARSEOP_INTEGER; Op->Asl.Child->Asl.Value.Integer = PackageLength; UtSetParseOpName (Op); /* Set the AML opcode */ (void) OpcSetOptimalIntegerSize (Op->Asl.Child); } /* If not a variable-length package, check for a zero package length */ if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) || (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST) || (PackageLengthOp->Asl.ParseOpcode == PARSEOP_ZERO) || (PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)) { if (!PackageLength) { /* No length AND no initializer list -- issue a remark */ AslError (ASL_REMARK, ASL_MSG_PACKAGE_LENGTH, PackageLengthOp, NULL); /* But go ahead and put the buffer length of zero into the AML */ } } /* * If the PackageLength is a constant <= 255, we can change the * AML opcode from VarPackage to a simple (ACPI 1.0) Package opcode. */ if (((Op->Asl.Child->Asl.ParseOpcode == PARSEOP_INTEGER) && (Op->Asl.Child->Asl.Value.Integer <= 255)) || (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ONE) || (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ONES)|| (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ZERO)) { Op->Asl.AmlOpcode = AML_PACKAGE_OP; Op->Asl.ParseOpcode = PARSEOP_PACKAGE; /* * Just set the package size node to be the package length, regardless * of whether it was previously an integer or a default_arg placeholder */ PackageLengthOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE; PackageLengthOp->Asl.AmlLength = 1; PackageLengthOp->Asl.ParseOpcode = PARSEOP_RAW_DATA; PackageLengthOp->Asl.Value.Integer = PackageLength; } /* Remaining nodes are handled via the tree walk */ } /******************************************************************************* * * FUNCTION: OpnDoLoadTable * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the LOADTABLE ASL keyword. * ******************************************************************************/ static void OpnDoLoadTable ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Next; /* Opcode is parent node */ /* First child is the table signature */ Next = Op->Asl.Child; /* Second child is the OEM ID*/ Next = Next->Asl.Next; /* Third child is the OEM table ID */ Next = Next->Asl.Next; /* Fourth child is the RootPath string */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode == PARSEOP_ZERO) { Next->Asl.ParseOpcode = PARSEOP_STRING_LITERAL; Next->Asl.Value.String = "\\"; Next->Asl.AmlLength = 2; OpcGenerateAmlOpcode (Next); } #ifdef ASL_FUTURE_IMPLEMENTATION /* TBD: NOT IMPLEMENTED */ /* Fifth child is the [optional] ParameterPathString */ /* Sixth child is the [optional] ParameterData */ Next = Next->Asl.Next; if (Next->Asl.ParseOpcode == DEFAULT_ARG) { Next->Asl.AmlLength = 1; Next->Asl.ParseOpcode = ZERO; OpcGenerateAmlOpcode (Next); } Next = Next->Asl.Next; if (Next->Asl.ParseOpcode == DEFAULT_ARG) { Next->Asl.AmlLength = 1; Next->Asl.ParseOpcode = ZERO; OpcGenerateAmlOpcode (Next); } #endif } /******************************************************************************* * * FUNCTION: OpnDoDefinitionBlock * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Construct the AML operands for the DEFINITIONBLOCK ASL keyword * ******************************************************************************/ static void OpnDoDefinitionBlock ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Child; ACPI_SIZE Length; UINT32 i; char *Filename; ACPI_STATUS Status; /* * These nodes get stuffed into the table header. They are special * cased when the table is written to the output file. * * Mark all of these nodes as non-usable so they won't get output * as AML opcodes! */ /* Get AML filename. Use it if non-null */ Child = Op->Asl.Child; if (Child->Asl.Value.Buffer && *Child->Asl.Value.Buffer && (AslGbl_UseDefaultAmlFilename)) { /* * The walk may traverse multiple definition blocks. Switch files * to ensure that the correct files are manipulated. */ FlSwitchFileSet (Op->Asl.Filename); /* * We will use the AML filename that is embedded in the source file * for the output filename. */ Filename = UtLocalCacheCalloc (strlen (AslGbl_DirectoryPath) + strlen ((char *) Child->Asl.Value.Buffer) + 1); /* Prepend the current directory path */ strcpy (Filename, AslGbl_DirectoryPath); strcat (Filename, (char *) Child->Asl.Value.Buffer); AslGbl_OutputFilenamePrefix = Filename; UtConvertBackslashes (AslGbl_OutputFilenamePrefix); /* * Use the definition block file parameter instead of the input * filename. Since all files were opened previously, remove the * existing file and open a new file with the name of this * definition block parameter. Since AML code generation has yet * to happen, the previous file can be removed without any impacts. */ FlCloseFile (ASL_FILE_AML_OUTPUT); FlDeleteFile (ASL_FILE_AML_OUTPUT); Status = FlOpenAmlOutputFile (AslGbl_OutputFilenamePrefix); if (ACPI_FAILURE (Status)) { AslError (ASL_ERROR, ASL_MSG_OUTPUT_FILE_OPEN, NULL, NULL); return; } } Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; /* Signature */ Child = Child->Asl.Next; Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; if (Child->Asl.Value.String) { AslGbl_FilesList->TableSignature = Child->Asl.Value.String; AslGbl_TableSignature = Child->Asl.Value.String; if (strlen (AslGbl_TableSignature) != ACPI_NAMESEG_SIZE) { AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child, "Length must be exactly 4 characters"); } for (i = 0; i < ACPI_NAMESEG_SIZE; i++) { if (!isalnum ((int) AslGbl_TableSignature[i])) { AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child, "Contains non-alphanumeric characters"); } } } /* Revision */ Child = Child->Asl.Next; Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; /* * We used the revision to set the integer width earlier */ /* OEMID */ Child = Child->Asl.Next; Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; if (Child->Asl.Value.String && strlen (Child->Asl.Value.String) > ACPI_OEM_ID_SIZE) { AslError (ASL_ERROR, ASL_MSG_OEM_ID, Child, "Length cannot exceed 6 characters"); } /* OEM TableID */ Child = Child->Asl.Next; Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; if (Child->Asl.Value.String) { Length = strlen (Child->Asl.Value.String); if (Length > ACPI_OEM_TABLE_ID_SIZE) { AslError (ASL_ERROR, ASL_MSG_OEM_TABLE_ID, Child, "Length cannot exceed 8 characters"); } AslGbl_TableId = UtLocalCacheCalloc (Length + 1); strcpy (AslGbl_TableId, Child->Asl.Value.String); AslGbl_FilesList->TableId = AslGbl_TableId; /* * Convert anything non-alphanumeric to an underscore. This * allows us to use the TableID to generate unique C symbols. */ for (i = 0; i < Length; i++) { if (!isalnum ((int) AslGbl_TableId[i])) { AslGbl_TableId[i] = '_'; } } } /* OEM Revision */ Child = Child->Asl.Next; Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; } /******************************************************************************* * * FUNCTION: UtGetArg * * PARAMETERS: Op - Get an argument for this op * Argn - Nth argument to get * * RETURN: The argument (as an Op object). NULL if argument does not exist * * DESCRIPTION: Get the specified op's argument (peer) * ******************************************************************************/ ACPI_PARSE_OBJECT * UtGetArg ( ACPI_PARSE_OBJECT *Op, UINT32 Argn) { ACPI_PARSE_OBJECT *Arg = NULL; /* Get the requested argument object */ Arg = Op->Asl.Child; while (Arg && Argn) { Argn--; Arg = Arg->Asl.Next; } return (Arg); } /******************************************************************************* * * FUNCTION: OpnAttachNameToNode * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: For the named ASL/AML operators, get the actual name from the * argument list and attach it to the parent node so that we * can get to it quickly later. * ******************************************************************************/ static void OpnAttachNameToNode ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Child = NULL; switch (Op->Asl.AmlOpcode) { case AML_DATA_REGION_OP: case AML_DEVICE_OP: case AML_EVENT_OP: case AML_EXTERNAL_OP: case AML_METHOD_OP: case AML_MUTEX_OP: case AML_REGION_OP: case AML_POWER_RESOURCE_OP: case AML_PROCESSOR_OP: case AML_THERMAL_ZONE_OP: case AML_NAME_OP: case AML_SCOPE_OP: Child = UtGetArg (Op, 0); break; case AML_ALIAS_OP: Child = UtGetArg (Op, 1); break; case AML_CREATE_BIT_FIELD_OP: case AML_CREATE_BYTE_FIELD_OP: case AML_CREATE_WORD_FIELD_OP: case AML_CREATE_DWORD_FIELD_OP: case AML_CREATE_QWORD_FIELD_OP: Child = UtGetArg (Op, 2); break; case AML_CREATE_FIELD_OP: Child = UtGetArg (Op, 3); break; case AML_BANK_FIELD_OP: case AML_INDEX_FIELD_OP: case AML_FIELD_OP: return; default: return; } if (Child) { UtAttachNamepathToOwner (Op, Child); } } /******************************************************************************* * * FUNCTION: OpnGenerateAmlOperands * * PARAMETERS: Op - The parent parse node * * RETURN: None * * DESCRIPTION: Prepare nodes to be output as AML data and operands. The more * complex AML opcodes require processing of the child nodes * (arguments/operands). * ******************************************************************************/ void OpnGenerateAmlOperands ( ACPI_PARSE_OBJECT *Op) { if (Op->Asl.AmlOpcode == AML_RAW_DATA_BYTE) { return; } switch (Op->Asl.ParseOpcode) { case PARSEOP_DEFINITION_BLOCK: OpnDoDefinitionBlock (Op); break; case PARSEOP_METHOD: OpnDoMethod (Op); break; case PARSEOP_MUTEX: OpnDoMutex (Op); break; case PARSEOP_FIELD: OpnDoField (Op); break; case PARSEOP_INDEXFIELD: OpnDoIndexField (Op); break; case PARSEOP_BANKFIELD: OpnDoBankField (Op); break; case PARSEOP_BUFFER: OpnDoBuffer (Op); break; case PARSEOP_LOADTABLE: OpnDoLoadTable (Op); break; case PARSEOP_OPERATIONREGION: OpnDoRegion (Op); break; case PARSEOP_RESOURCETEMPLATE: RsDoResourceTemplate (Op); break; case PARSEOP_NAMESEG: case PARSEOP_NAMESTRING: case PARSEOP_METHODCALL: case PARSEOP_STRING_LITERAL: default: break; } /* TBD: move */ OpnAttachNameToNode (Op); }