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Diffstat (limited to 'compiler/aslcodegen.c')
| -rw-r--r-- | compiler/aslcodegen.c | 661 |
1 files changed, 661 insertions, 0 deletions
diff --git a/compiler/aslcodegen.c b/compiler/aslcodegen.c new file mode 100644 index 0000000000000..25ee7290ed898 --- /dev/null +++ b/compiler/aslcodegen.c @@ -0,0 +1,661 @@ + +/****************************************************************************** + * + * Module Name: aslcodegen - AML code generation + * $Revision: 1.62 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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. + * + *****************************************************************************/ + + +#include <contrib/dev/acpica/compiler/aslcompiler.h> +#include "aslcompiler.y.h" +#include <contrib/dev/acpica/amlcode.h> + +#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) +{ + + /* + * Print header at level 0. Alignment assumes 32-bit pointers + */ + if (!Level) + { + DbgPrint (ASL_TREE_OUTPUT, + "Final parse tree used for AML output:\n"); + DbgPrint (ASL_TREE_OUTPUT, + "%*s Value P_Op A_Op OpLen PByts Len SubLen PSubLen OpPtr Child Parent Flags AcTyp Final Col L\n", + 76, " "); + } + + /* 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, + "%08X %04X %04X %01X %04X %04X %04X %04X %08X %08X %08X %08X %08X %04X %02d %02d\n", + /* 1 */ (UINT32) Op->Asl.Value.Integer, + /* 2 */ Op->Asl.ParseOpcode, + /* 3 */ Op->Asl.AmlOpcode, + /* 4 */ Op->Asl.AmlOpcodeLength, + /* 5 */ Op->Asl.AmlPkgLenBytes, + /* 6 */ Op->Asl.AmlLength, + /* 7 */ Op->Asl.AmlSubtreeLength, + /* 8 */ Op->Asl.Parent ? Op->Asl.Parent->Asl.AmlSubtreeLength : 0, + /* 9 */ Op, + /* 10 */ Op->Asl.Child, + /* 11 */ Op->Asl.Parent, + /* 12 */ Op->Asl.CompileFlags, + /* 13 */ Op->Asl.AcpiBtype, + /* 14 */ Op->Asl.FinalAmlLength, + /* 15 */ Op->Asl.Column, + /* 16 */ 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 if (Op->Asl.AmlPkgLenBytes != 0) + { + /* + * 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; + + + /* 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; + } + + Op->Asl.FinalAmlLength = 0; + + 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; + } +} + + |