Import compiler/ files from acpica 0619

1 files changed, 620 insertions, 0 deletions

diff --git a/sys/contrib/dev/acpica/compiler/aslopcodes.c b/sys/contrib/dev/acpica/compiler/aslopcodes.c
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@@ -0,0 +1,620 @@
+
+/******************************************************************************
+ *
+ * Module Name: aslopcode - AML opcode generation
+ *              $Revision: 54 $
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2003, 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 "aslcompiler.h"
+#include "aslcompiler.y.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_COMPILER
+        ACPI_MODULE_NAME    ("aslopcodes")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcAmlOpcodeWalk
+ *
+ * PARAMETERS:  ASL_WALK_CALLBACK
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML
+ *              operands.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+OpcAmlOpcodeWalk (
+    ACPI_PARSE_OBJECT       *Op,
+    UINT32                  Level,
+    void                    *Context)
+{
+
+    TotalParseNodes++;
+
+    OpcGenerateAmlOpcode (Op);
+    OpnGenerateAmlOperands (Op);
+
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcGetIntegerWidth
+ *
+ * PARAMETERS:  Op          - DEFINITION BLOCK op
+ *
+ * RETURN:      none
+ *
+ * DESCRIPTION: Extract integer width from the table revision
+ *
+ ******************************************************************************/
+
+void
+OpcGetIntegerWidth (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *Child;
+
+    if (!Op)
+    {
+        return;
+    }
+
+    Child = Op->Asl.Child;
+    Child = Child->Asl.Next;
+    Child = Child->Asl.Next;
+
+    /* Use the revision to set the integer width */
+
+    AcpiUtSetIntegerWidth ((UINT8) Child->Asl.Value.Integer);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcSetOptimalIntegerSize
+ *
+ * PARAMETERS:  Op        - A parse tree node
+ *
+ * RETURN:      Integer width, in bytes.  Also sets the node AML opcode to the
+ *              optimal integer AML prefix opcode.
+ *
+ * DESCRIPTION: Determine the optimal AML encoding of an integer.  All leading
+ *              zeros can be truncated to squeeze the integer into the
+ *              minimal number of AML bytes.
+ *
+ ******************************************************************************/
+
+UINT32
+OpcSetOptimalIntegerSize (
+    ACPI_PARSE_OBJECT       *Op)
+{
+
+    /*
+     * Check for the special AML integers first - Zero, One, Ones.
+     * These are single-byte opcodes that are the smallest possible
+     * representation of an integer.
+     *
+     * This optimization is optional.
+     */
+    if (Gbl_IntegerOptimizationFlag)
+    {
+        switch (Op->Asl.Value.Integer)
+        {
+        case 0:
+
+            Op->Asl.AmlOpcode = AML_ZERO_OP;
+            AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, Op, "Zero");
+            return 1;
+
+        case 1:
+
+            Op->Asl.AmlOpcode = AML_ONE_OP;
+            AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, Op, "One");
+            return 1;
+
+        case ACPI_UINT32_MAX:
+
+            /* Check for table integer width (32 or 64) */
+
+            if (AcpiGbl_IntegerByteWidth == 4)
+            {
+                Op->Asl.AmlOpcode = AML_ONES_OP;
+                AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, Op, "Ones");
+                return 1;
+            }
+            break;
+
+        case ACPI_INTEGER_MAX:
+
+            /* Check for table integer width (32 or 64) */
+
+            if (AcpiGbl_IntegerByteWidth == 8)
+            {
+                Op->Asl.AmlOpcode = AML_ONES_OP;
+                AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, Op, "Ones");
+                return 1;
+            }
+            break;
+
+        default:
+            break;
+        }
+    }
+
+    /* Find the best fit using the various AML integer prefixes */
+
+    if (Op->Asl.Value.Integer <= ACPI_UINT8_MAX)
+    {
+        Op->Asl.AmlOpcode = AML_BYTE_OP;
+        return 1;
+    }
+    if (Op->Asl.Value.Integer <= ACPI_UINT16_MAX)
+    {
+        Op->Asl.AmlOpcode = AML_WORD_OP;
+        return 2;
+    }
+    if (Op->Asl.Value.Integer <= ACPI_UINT32_MAX)
+    {
+        Op->Asl.AmlOpcode = AML_DWORD_OP;
+        return 4;
+    }
+    else
+    {
+        Op->Asl.AmlOpcode = AML_QWORD_OP;
+        return 8;
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcDoAccessAs
+ *
+ * PARAMETERS:  Op        - Parse node
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Implement the ACCESS_AS ASL keyword.
+ *
+ ******************************************************************************/
+
+void
+OpcDoAccessAs (
+    ACPI_PARSE_OBJECT           *Op)
+{
+    ACPI_PARSE_OBJECT           *Next;
+
+
+    Op->Asl.AmlOpcodeLength = 1;
+    Next = Op->Asl.Child;
+
+    /* First child is the access type */
+
+    Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
+    Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
+
+    /* Second child is the optional access attribute */
+
+    Next = Next->Asl.Next;
+    if (Next->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
+    {
+        Next->Asl.Value.Integer = 0;
+    }
+    Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
+    Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcDoUnicode
+ *
+ * PARAMETERS:  Op        - Parse node
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Implement the UNICODE ASL "macro".  Convert the input string
+ *              to a unicode buffer.  There is no Unicode AML opcode.
+ *
+ * Note:  The Unicode string is 16 bits per character, no leading signature,
+ *        with a 16-bit terminating NULL.
+ *
+ ******************************************************************************/
+
+void
+OpcDoUnicode (
+    ACPI_PARSE_OBJECT           *Op)
+{
+    ACPI_PARSE_OBJECT           *InitializerOp;
+    UINT32                      Length;
+    UINT32                      Count;
+    UINT32                      i;
+    UINT8                       *AsciiString;
+    UINT16                      *UnicodeString;
+    ACPI_PARSE_OBJECT           *BufferLengthOp;
+
+
+    /* Change op into a buffer object */
+
+    Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST;
+    Op->Asl.ParseOpcode = PARSEOP_BUFFER;
+    UtSetParseOpName (Op);
+
+    /* Buffer Length is first, followed by the string */
+
+    BufferLengthOp = Op->Asl.Child;
+    InitializerOp = BufferLengthOp->Asl.Next;
+
+    AsciiString = (UINT8 *) InitializerOp->Asl.Value.String;
+
+    /* Create a new buffer for the Unicode string */
+
+    Count = strlen (InitializerOp->Asl.Value.String) + 1;
+    Length = Count * sizeof (UINT16);
+    UnicodeString = UtLocalCalloc (Length);
+
+    /* Convert to Unicode string (including null terminator) */
+
+    for (i = 0; i < Count; i++)
+    {
+        UnicodeString[i] = (UINT16) AsciiString[i];
+    }
+
+    /*
+     * 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 = Length;
+    UtSetParseOpName (BufferLengthOp);
+
+    (void) OpcSetOptimalIntegerSize (BufferLengthOp);
+
+    /* The Unicode string is a raw data buffer */
+
+    InitializerOp->Asl.Value.Buffer   = (UINT8 *) UnicodeString;
+    InitializerOp->Asl.AmlOpcode      = AML_RAW_DATA_BUFFER;
+    InitializerOp->Asl.AmlLength      = Length;
+    InitializerOp->Asl.ParseOpcode    = PARSEOP_RAW_DATA;
+    InitializerOp->Asl.Child          = NULL;
+    UtSetParseOpName (InitializerOp);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcDoEisaId
+ *
+ * PARAMETERS:  Op        - Parse node
+ *
+ * RETURN:      None
+ *
+ *
+ * DESCRIPTION: Convert a string EISA ID to numeric representation.  See the
+ *              Pnp BIOS Specification for details.  Here is an excerpt:
+ *
+ *              A seven character ASCII representation of the product
+ *              identifier compressed into a 32-bit identifier.  The seven
+ *              character ID consists of a three character manufacturer code,
+ *              a three character hexadecimal product identifier, and a one
+ *              character hexadecimal revision number.  The manufacturer code
+ *              is a 3 uppercase character code that is compressed into 3 5-bit
+ *              values as follows:
+ *                  1) Find hex ASCII value for each letter
+ *                  2) Subtract 40h from each ASCII value
+ *                  3) Retain 5 least signficant bits for each letter by
+ *                     discarding upper 3 bits because they are always 0.
+ *                  4) Compressed code = concatenate 0 and the 3 5-bit values
+ *
+ *              The format of the compressed product identifier is as follows:
+ *              Byte 0: Bit 7       - Reserved (0)
+ *                      Bits 6-2:   - 1st character of compressed mfg code
+ *                      Bits 1-0    - Upper 2 bits of 2nd character of mfg code
+ *              Byte 1: Bits 7-5    - Lower 3 bits of 2nd character of mfg code
+ *                      Bits 4-0    - 3rd character of mfg code
+ *              Byte 2: Bits 7-4    - 1st hex digit of product number
+ *                      Bits 3-0    - 2nd hex digit of product number
+ *              Byte 3: Bits 7-4    - 3st hex digit of product number
+ *                      Bits 3-0    - Hex digit of the revision number
+ *
+ ******************************************************************************/
+
+void
+OpcDoEisaId (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    UINT32                  EisaId = 0;
+    UINT32                  BigEndianId;
+    char                    *InString;
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_NATIVE_UINT        i;
+
+
+    InString = (char *) Op->Asl.Value.String;
+
+    /*
+     * The EISAID string must be exactly 7 characters and of the form
+     * "LLLXXXX" -- 3 letters and 4 hex digits (e.g., "PNP0001")
+     */
+    if (ACPI_STRLEN (InString) != 7)
+    {
+        Status = AE_BAD_PARAMETER;
+    }
+    else
+    {
+        /* Check all 7 characters for correct format */
+
+        for (i = 0; i < 7; i++)
+        {
+            /* First 3 characters must be letters */
+
+            if (i < 3)
+            {
+                if (!isalpha (InString[i]))
+                {
+                    Status = AE_BAD_PARAMETER;
+                }
+            }
+
+            /* Last 4 characters must be hex digits */
+
+            else if (!isxdigit (InString[i]))
+            {
+                Status = AE_BAD_PARAMETER;
+            }
+        }
+    }
+
+    if (ACPI_FAILURE (Status))
+    {
+        AslError (ASL_ERROR, ASL_MSG_INVALID_EISAID, Op, Op->Asl.Value.String);
+    }
+    else
+    {
+        /* Create ID big-endian first (bits are contiguous) */
+
+        BigEndianId  =  (UINT32) (InString[0] - 0x40) << 26 |
+                        (UINT32) (InString[1] - 0x40) << 21 |
+                        (UINT32) (InString[2] - 0x40) << 16 |
+
+                        (UtHexCharToValue (InString[3])) << 12 |
+                        (UtHexCharToValue (InString[4])) << 8  |
+                        (UtHexCharToValue (InString[5])) << 4  |
+                         UtHexCharToValue (InString[6]);
+
+        /* Swap to little-endian to get final ID (see function header) */
+
+        EisaId = AcpiUtDwordByteSwap (BigEndianId);
+    }
+
+    /*
+     * Morph the Op into an integer, regardless of whether there
+     * was an error in the EISAID string
+     */
+    Op->Asl.Value.Integer = EisaId;
+
+    Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST;
+    Op->Asl.ParseOpcode = PARSEOP_INTEGER;
+    (void) OpcSetOptimalIntegerSize (Op);
+
+    /* Op is now an integer */
+
+    UtSetParseOpName (Op);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    OpcGenerateAmlOpcode
+ *
+ * PARAMETERS:  Op        - Parse node
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Generate the AML opcode associated with the node and its
+ *              parse (lex/flex) keyword opcode.  Essentially implements
+ *              a mapping between the parse opcodes and the actual AML opcodes.
+ *
+ ******************************************************************************/
+
+void
+OpcGenerateAmlOpcode (
+    ACPI_PARSE_OBJECT       *Op)
+{
+
+    UINT16                  Index;
+
+
+    Index = (UINT16) (Op->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE);
+
+    Op->Asl.AmlOpcode     = AslKeywordMapping[Index].AmlOpcode;
+    Op->Asl.AcpiBtype     = AslKeywordMapping[Index].AcpiBtype;
+    Op->Asl.CompileFlags |= AslKeywordMapping[Index].Flags;
+
+    if (!Op->Asl.Value.Integer)
+    {
+        Op->Asl.Value.Integer = AslKeywordMapping[Index].Value;
+    }
+
+    /* Special handling for some opcodes */
+
+    switch (Op->Asl.ParseOpcode)
+    {
+    case PARSEOP_INTEGER:
+        /*
+         * Set the opcode based on the size of the integer
+         */
+        (void) OpcSetOptimalIntegerSize (Op);
+        break;
+
+    case PARSEOP_OFFSET:
+
+        Op->Asl.AmlOpcodeLength = 1;
+        break;
+
+    case PARSEOP_ACCESSAS:
+
+        OpcDoAccessAs (Op);
+        break;
+
+    case PARSEOP_EISAID:
+
+        OpcDoEisaId (Op);
+        break;
+
+    case PARSEOP_UNICODE:
+
+        OpcDoUnicode (Op);
+        break;
+
+    case PARSEOP_INCLUDE:
+
+        Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
+        Gbl_HasIncludeFiles = TRUE;
+        break;
+
+    case PARSEOP_EXTERNAL:
+
+        Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
+        Op->Asl.Child->Asl.Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
+        break;
+
+    case PARSEOP_PACKAGE:
+        /*
+         * The variable-length package has a different opcode
+         */
+        if ((Op->Asl.Child->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) &&
+            (Op->Asl.Child->Asl.ParseOpcode != PARSEOP_INTEGER)     &&
+            (Op->Asl.Child->Asl.ParseOpcode != PARSEOP_BYTECONST))
+        {
+            Op->Asl.AmlOpcode = AML_VAR_PACKAGE_OP;
+        }
+        break;
+
+    default:
+        /* Nothing to do for other opcodes */
+        break;
+    }
+
+    return;
+}
+
+