/****************************************************************************** * * Module Name: aslcodegen - AML code generation * $Revision: 1.57 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2005, 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. * *****************************************************************************/ #include #include "aslcompiler.y.h" #include #define _COMPONENT ACPI_COMPILER ACPI_MODULE_NAME ("aslcodegen") /* Local prototypes */ static ACPI_STATUS CgAmlWriteWalk ( ACPI_PARSE_OBJECT *Op, UINT32 Level, void *Context); static void CgLocalWriteAmlData ( ACPI_PARSE_OBJECT *Op, void *Buffer, UINT32 Length); static void CgWriteAmlOpcode ( ACPI_PARSE_OBJECT *Op); static void CgWriteTableHeader ( ACPI_PARSE_OBJECT *Op); static void CgCloseTable ( void); static void CgWriteNode ( ACPI_PARSE_OBJECT *Op); /******************************************************************************* * * FUNCTION: CgGenerateAmlOutput * * PARAMETERS: None. * * RETURN: None * * DESCRIPTION: Generate AML code. Currently generates the listing file * simultaneously. * ******************************************************************************/ void CgGenerateAmlOutput ( void) { DbgPrint (ASL_DEBUG_OUTPUT, "\nWriting AML\n\n"); /* Generate the AML output file */ FlSeekFile (ASL_FILE_SOURCE_OUTPUT, 0); Gbl_SourceLine = 0; Gbl_NextError = Gbl_ErrorLog; TrWalkParseTree (RootNode, ASL_WALK_VISIT_DOWNWARD, CgAmlWriteWalk, NULL, NULL); CgCloseTable (); } /******************************************************************************* * * FUNCTION: CgAmlWriteWalk * * PARAMETERS: ASL_WALK_CALLBACK * * RETURN: Status * * DESCRIPTION: Parse tree walk to generate the AML code. * ******************************************************************************/ static ACPI_STATUS CgAmlWriteWalk ( ACPI_PARSE_OBJECT *Op, UINT32 Level, void *Context) { /* Debug output */ DbgPrint (ASL_TREE_OUTPUT, "%5.5d [%2d]", Op->Asl.LogicalLineNumber, Level); UtPrintFormattedName (Op->Asl.ParseOpcode, Level); if (Op->Asl.ParseOpcode == PARSEOP_NAMESEG || Op->Asl.ParseOpcode == PARSEOP_NAMESTRING || Op->Asl.ParseOpcode == PARSEOP_METHODCALL) { DbgPrint (ASL_TREE_OUTPUT, "%10.32s ", Op->Asl.ExternalName); } else { DbgPrint (ASL_TREE_OUTPUT, " "); } DbgPrint (ASL_TREE_OUTPUT, "Val-%08X POp-%04X AOp-%04X OpLen-%01X PByts-%01X Len-%04X SubLen-%04X PSubLen-%04X Op-%08X Chld-%08X Paren-%08X Flags-%04X AcTyp-%08X C-%2d L-%d\n", (UINT32) Op->Asl.Value.Integer, Op->Asl.ParseOpcode, Op->Asl.AmlOpcode, Op->Asl.AmlOpcodeLength, Op->Asl.AmlPkgLenBytes, Op->Asl.AmlLength, Op->Asl.AmlSubtreeLength, Op->Asl.Parent ? Op->Asl.Parent->Asl.AmlSubtreeLength : 0, Op, Op->Asl.Child, Op->Asl.Parent, Op->Asl.CompileFlags, Op->Asl.AcpiBtype, Op->Asl.Column, Op->Asl.LineNumber); /* Generate the AML for this node */ CgWriteNode (Op); return (AE_OK); } /******************************************************************************* * * FUNCTION: CgLocalWriteAmlData * * PARAMETERS: Op - Current parse op * Buffer - Buffer to write * Length - Size of data in buffer * * RETURN: None * * DESCRIPTION: Write a buffer of AML data to the AML output file. * ******************************************************************************/ static void CgLocalWriteAmlData ( ACPI_PARSE_OBJECT *Op, void *Buffer, UINT32 Length) { /* Write the raw data to the AML file */ FlWriteFile (ASL_FILE_AML_OUTPUT, Buffer, Length); /* Update the final AML length for this node (used for listings) */ if (Op) { Op->Asl.FinalAmlLength += Length; } } /******************************************************************************* * * FUNCTION: CgWriteAmlOpcode * * PARAMETERS: Op - Parse node with an AML opcode * * RETURN: None. * * DESCRIPTION: Write the AML opcode corresponding to a parse node. * ******************************************************************************/ static void CgWriteAmlOpcode ( ACPI_PARSE_OBJECT *Op) { UINT8 PkgLenFirstByte; UINT32 i; union { UINT16 Opcode; UINT8 OpcodeBytes[2]; } Aml; union { UINT32 Len; UINT8 LenBytes[4]; } PkgLen; /* We expect some DEFAULT_ARGs, just ignore them */ if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) { return; } switch (Op->Asl.AmlOpcode) { case AML_UNASSIGNED_OPCODE: /* These opcodes should not get here */ printf ("Found a node with an unassigned AML opcode\n"); fprintf (stderr, "Found a node with an unassigned AML opcode\n"); return; case AML_INT_RESERVEDFIELD_OP: /* Special opcodes for within a field definition */ Aml.Opcode = 0x00; break; case AML_INT_ACCESSFIELD_OP: Aml.Opcode = 0x01; break; default: Aml.Opcode = Op->Asl.AmlOpcode; break; } switch (Aml.Opcode) { case AML_PACKAGE_LENGTH: /* Value is the length to be encoded (Used in field definitions) */ PkgLen.Len = (UINT32) Op->Asl.Value.Integer; break; default: /* Check for two-byte opcode */ if (Aml.Opcode > 0x00FF) { /* Write the high byte first */ CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[1], 1); } CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[0], 1); /* Subtreelength doesn't include length of package length bytes */ PkgLen.Len = Op->Asl.AmlSubtreeLength + Op->Asl.AmlPkgLenBytes; break; } /* Does this opcode have an associated "PackageLength" field? */ if (Op->Asl.CompileFlags & NODE_AML_PACKAGE) { if (Op->Asl.AmlPkgLenBytes == 1) { /* Simplest case -- no bytes to follow, just write the count */ CgLocalWriteAmlData (Op, &PkgLen.LenBytes[0], 1); } else { /* * Encode the "bytes to follow" in the first byte, top two bits. * The low-order nybble of the length is in the bottom 4 bits */ PkgLenFirstByte = (UINT8) (((UINT32) (Op->Asl.AmlPkgLenBytes - 1) << 6) | (PkgLen.LenBytes[0] & 0x0F)); CgLocalWriteAmlData (Op, &PkgLenFirstByte, 1); /* * Shift the length over by the 4 bits we just stuffed * in the first byte */ PkgLen.Len >>= 4; /* Now we can write the remaining bytes - either 1, 2, or 3 bytes */ for (i = 0; i < (UINT32) (Op->Asl.AmlPkgLenBytes - 1); i++) { CgLocalWriteAmlData (Op, &PkgLen.LenBytes[i], 1); } } } switch (Aml.Opcode) { case AML_BYTE_OP: CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 1); break; case AML_WORD_OP: CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 2); break; case AML_DWORD_OP: CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 4); break; case AML_QWORD_OP: CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 8); break; case AML_STRING_OP: CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength); break; default: /* All data opcodes must appear above */ break; } } /******************************************************************************* * * FUNCTION: CgWriteTableHeader * * PARAMETERS: Op - The DEFINITIONBLOCK node * * RETURN: None * * DESCRIPTION: Write a table header corresponding to the DEFINITIONBLOCK * ******************************************************************************/ static void CgWriteTableHeader ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *Child; /* AML filename */ Child = Op->Asl.Child; /* Signature */ Child = Child->Asl.Next; strncpy (TableHeader.Signature, Child->Asl.Value.String, 4); /* Revision */ Child = Child->Asl.Next; TableHeader.Revision = (UINT8) Child->Asl.Value.Integer; /* Command-line Revision override */ if (Gbl_RevisionOverride) { TableHeader.Revision = Gbl_RevisionOverride; } /* OEMID */ Child = Child->Asl.Next; strncpy (TableHeader.OemId, Child->Asl.Value.String, 6); /* OEM TableID */ Child = Child->Asl.Next; strncpy (TableHeader.OemTableId, Child->Asl.Value.String, 8); /* OEM Revision */ Child = Child->Asl.Next; TableHeader.OemRevision = (UINT32) Child->Asl.Value.Integer; /* Compiler ID */ strncpy (TableHeader.AslCompilerId, CompilerCreatorId, 4); /* Compiler version */ TableHeader.AslCompilerRevision = CompilerCreatorRevision; /* Table length. Checksum zero for now, will rewrite later */ TableHeader.Length = Gbl_TableLength; TableHeader.Checksum = 0; CgLocalWriteAmlData (Op, &TableHeader, sizeof (ACPI_TABLE_HEADER)); } /******************************************************************************* * * FUNCTION: CgCloseTable * * PARAMETERS: None. * * RETURN: None. * * DESCRIPTION: Complete the ACPI table by calculating the checksum and * re-writing the header. * ******************************************************************************/ static void CgCloseTable ( void) { signed char Sum; UINT8 FileByte; FlSeekFile (ASL_FILE_AML_OUTPUT, 0); Sum = 0; /* Calculate the checksum over the entire file */ while (FlReadFile (ASL_FILE_AML_OUTPUT, &FileByte, 1) == AE_OK) { Sum = (signed char) (Sum + FileByte); } /* Re-write the table header with the checksum */ TableHeader.Checksum = (UINT8) (0 - Sum); FlSeekFile (ASL_FILE_AML_OUTPUT, 0); CgLocalWriteAmlData (NULL, &TableHeader, sizeof (ACPI_TABLE_HEADER)); } /******************************************************************************* * * FUNCTION: CgWriteNode * * PARAMETERS: Op - Parse node to write. * * RETURN: None. * * DESCRIPTION: Write the AML that corresponds to a parse node. * ******************************************************************************/ static void CgWriteNode ( ACPI_PARSE_OBJECT *Op) { ASL_RESOURCE_NODE *Rnode; Op->Asl.FinalAmlLength = 0; /* Always check for DEFAULT_ARG and other "Noop" nodes */ /* TBD: this may not be the best place for this check */ if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) || (Op->Asl.ParseOpcode == PARSEOP_EXTERNAL) || (Op->Asl.ParseOpcode == PARSEOP_INCLUDE) || (Op->Asl.ParseOpcode == PARSEOP_INCLUDE_END)) { return; } switch (Op->Asl.AmlOpcode) { case AML_RAW_DATA_BYTE: case AML_RAW_DATA_WORD: case AML_RAW_DATA_DWORD: case AML_RAW_DATA_QWORD: CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, Op->Asl.AmlLength); return; case AML_RAW_DATA_BUFFER: CgLocalWriteAmlData (Op, Op->Asl.Value.Buffer, Op->Asl.AmlLength); return; case AML_RAW_DATA_CHAIN: Rnode = ACPI_CAST_PTR (ASL_RESOURCE_NODE, Op->Asl.Value.Buffer); while (Rnode) { CgLocalWriteAmlData (Op, Rnode->Buffer, Rnode->BufferLength); Rnode = Rnode->Next; } return; default: /* Internal data opcodes must all appear above */ break; } switch (Op->Asl.ParseOpcode) { case PARSEOP_DEFAULT_ARG: break; case PARSEOP_DEFINITIONBLOCK: CgWriteTableHeader (Op); break; case PARSEOP_NAMESEG: case PARSEOP_NAMESTRING: case PARSEOP_METHODCALL: CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength); break; default: CgWriteAmlOpcode (Op); break; } }