OS-6465 add iasl

Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Approvced by: Jerry Jelinek <jerry.jelinek@joyent.com>

1 files changed, 1124 insertions, 0 deletions

diff --git a/usr/src/common/acpica/disassembler/dmopcode.c b/usr/src/common/acpica/disassembler/dmopcode.c
new file mode 100644
index 0000000000..7ca171cbbb
--- /dev/null
+++ b/usr/src/common/acpica/disassembler/dmopcode.c
@@ -0,0 +1,1124 @@
+/*******************************************************************************
+ *
+ * Module Name: dmopcode - AML disassembler, specific AML opcodes
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2016, 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 "acparser.h"
+#include "amlcode.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+        ACPI_MODULE_NAME    ("dmopcode")
+
+
+/* Local prototypes */
+
+static void
+AcpiDmMatchKeyword (
+    ACPI_PARSE_OBJECT       *Op);
+
+static void
+AcpiDmConvertToElseIf (
+    ACPI_PARSE_OBJECT       *Op);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmDisplayTargetPathname
+ *
+ * PARAMETERS:  Op              - Parse object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: For AML opcodes that have a target operand, display the full
+ *              pathname for the target, in a comment field. Handles Return()
+ *              statements also.
+ *
+ ******************************************************************************/
+
+void
+AcpiDmDisplayTargetPathname (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *NextOp;
+    ACPI_PARSE_OBJECT       *PrevOp = NULL;
+    char                    *Pathname;
+    const ACPI_OPCODE_INFO  *OpInfo;
+
+
+    if (Op->Common.AmlOpcode == AML_RETURN_OP)
+    {
+        PrevOp = Op->Asl.Value.Arg;
+    }
+    else
+    {
+        OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+        if (!(OpInfo->Flags & AML_HAS_TARGET))
+        {
+            return;
+        }
+
+        /* Target is the last Op in the arg list */
+
+        NextOp = Op->Asl.Value.Arg;
+        while (NextOp)
+        {
+            PrevOp = NextOp;
+            NextOp = PrevOp->Asl.Next;
+        }
+    }
+
+    if (!PrevOp)
+    {
+        return;
+    }
+
+    /* We must have a namepath AML opcode */
+
+    if (PrevOp->Asl.AmlOpcode != AML_INT_NAMEPATH_OP)
+    {
+        return;
+    }
+
+    /* A null string is the "no target specified" case */
+
+    if (!PrevOp->Asl.Value.String)
+    {
+        return;
+    }
+
+    /* No node means "unresolved external reference" */
+
+    if (!PrevOp->Asl.Node)
+    {
+        AcpiOsPrintf (" /* External reference */");
+        return;
+    }
+
+    /* Ignore if path is already from the root */
+
+    if (*PrevOp->Asl.Value.String == '\\')
+    {
+        return;
+    }
+
+    /* Now: we can get the full pathname */
+
+    Pathname = AcpiNsGetExternalPathname (PrevOp->Asl.Node);
+    if (!Pathname)
+    {
+        return;
+    }
+
+    AcpiOsPrintf (" /* %s */", Pathname);
+    ACPI_FREE (Pathname);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmNotifyDescription
+ *
+ * PARAMETERS:  Op              - Name() parse object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Emit a description comment for the value associated with a
+ *              Notify() operator.
+ *
+ ******************************************************************************/
+
+void
+AcpiDmNotifyDescription (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *NextOp;
+    ACPI_NAMESPACE_NODE     *Node;
+    UINT8                   NotifyValue;
+    UINT8                   Type = ACPI_TYPE_ANY;
+
+
+    /* The notify value is the second argument */
+
+    NextOp = Op->Asl.Value.Arg;
+    NextOp = NextOp->Asl.Next;
+
+    switch (NextOp->Common.AmlOpcode)
+    {
+    case AML_ZERO_OP:
+    case AML_ONE_OP:
+
+        NotifyValue = (UINT8) NextOp->Common.AmlOpcode;
+        break;
+
+    case AML_BYTE_OP:
+
+        NotifyValue = (UINT8) NextOp->Asl.Value.Integer;
+        break;
+
+    default:
+        return;
+    }
+
+    /*
+     * Attempt to get the namespace node so we can determine the object type.
+     * Some notify values are dependent on the object type (Device, Thermal,
+     * or Processor).
+     */
+    Node = Op->Asl.Node;
+    if (Node)
+    {
+        Type = Node->Type;
+    }
+
+    AcpiOsPrintf (" // %s", AcpiUtGetNotifyName (NotifyValue, Type));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmPredefinedDescription
+ *
+ * PARAMETERS:  Op              - Name() parse object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Emit a description comment for a predefined ACPI name.
+ *              Used for iASL compiler only.
+ *
+ ******************************************************************************/
+
+void
+AcpiDmPredefinedDescription (
+    ACPI_PARSE_OBJECT       *Op)
+{
+#ifdef ACPI_ASL_COMPILER
+    const AH_PREDEFINED_NAME    *Info;
+    char                        *NameString;
+    int                         LastCharIsDigit;
+    int                         LastCharsAreHex;
+
+
+    if (!Op)
+    {
+        return;
+    }
+
+    /* Ensure that the comment field is emitted only once */
+
+    if (Op->Common.DisasmFlags & ACPI_PARSEOP_PREDEFINED_CHECKED)
+    {
+        return;
+    }
+    Op->Common.DisasmFlags |= ACPI_PARSEOP_PREDEFINED_CHECKED;
+
+    /* Predefined name must start with an underscore */
+
+    NameString = ACPI_CAST_PTR (char, &Op->Named.Name);
+    if (NameString[0] != '_')
+    {
+        return;
+    }
+
+    /*
+     * Check for the special ACPI names:
+     * _ACd, _ALd, _EJd, _Exx, _Lxx, _Qxx, _Wxx, _T_a
+     * (where d=decimal_digit, x=hex_digit, a=anything)
+     *
+     * Convert these to the generic name for table lookup.
+     * Note: NameString is guaranteed to be upper case here.
+     */
+    LastCharIsDigit =
+        (isdigit ((int) NameString[3]));    /* d */
+    LastCharsAreHex =
+        (isxdigit ((int) NameString[2]) &&  /* xx */
+         isxdigit ((int) NameString[3]));
+
+    switch (NameString[1])
+    {
+    case 'A':
+
+        if ((NameString[2] == 'C') && (LastCharIsDigit))
+        {
+            NameString = "_ACx";
+        }
+        else if ((NameString[2] == 'L') && (LastCharIsDigit))
+        {
+            NameString = "_ALx";
+        }
+        break;
+
+    case 'E':
+
+        if ((NameString[2] == 'J') && (LastCharIsDigit))
+        {
+            NameString = "_EJx";
+        }
+        else if (LastCharsAreHex)
+        {
+            NameString = "_Exx";
+        }
+        break;
+
+    case 'L':
+
+        if (LastCharsAreHex)
+        {
+            NameString = "_Lxx";
+        }
+        break;
+
+    case 'Q':
+
+        if (LastCharsAreHex)
+        {
+            NameString = "_Qxx";
+        }
+        break;
+
+    case 'T':
+
+        if (NameString[2] == '_')
+        {
+            NameString = "_T_x";
+        }
+        break;
+
+    case 'W':
+
+        if (LastCharsAreHex)
+        {
+            NameString = "_Wxx";
+        }
+        break;
+
+    default:
+
+        break;
+    }
+
+    /* Match the name in the info table */
+
+    Info = AcpiAhMatchPredefinedName (NameString);
+    if (Info)
+    {
+        AcpiOsPrintf ("  // %4.4s: %s",
+            NameString, ACPI_CAST_PTR (char, Info->Description));
+    }
+
+#endif
+    return;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmFieldPredefinedDescription
+ *
+ * PARAMETERS:  Op              - Parse object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Emit a description comment for a resource descriptor tag
+ *              (which is a predefined ACPI name.) Used for iASL compiler only.
+ *
+ ******************************************************************************/
+
+void
+AcpiDmFieldPredefinedDescription (
+    ACPI_PARSE_OBJECT       *Op)
+{
+#ifdef ACPI_ASL_COMPILER
+    ACPI_PARSE_OBJECT       *IndexOp;
+    char                    *Tag;
+    const ACPI_OPCODE_INFO  *OpInfo;
+    const AH_PREDEFINED_NAME *Info;
+
+
+    if (!Op)
+    {
+        return;
+    }
+
+    /* Ensure that the comment field is emitted only once */
+
+    if (Op->Common.DisasmFlags & ACPI_PARSEOP_PREDEFINED_CHECKED)
+    {
+        return;
+    }
+    Op->Common.DisasmFlags |= ACPI_PARSEOP_PREDEFINED_CHECKED;
+
+    /*
+     * Op must be one of the Create* operators: CreateField, CreateBitField,
+     * CreateByteField, CreateWordField, CreateDwordField, CreateQwordField
+     */
+    OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+    if (!(OpInfo->Flags & AML_CREATE))
+    {
+        return;
+    }
+
+    /* Second argument is the Index argument */
+
+    IndexOp = Op->Common.Value.Arg;
+    IndexOp = IndexOp->Common.Next;
+
+    /* Index argument must be a namepath */
+
+    if (IndexOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP)
+    {
+        return;
+    }
+
+    /* Major cheat: We previously put the Tag ptr in the Node field */
+
+    Tag = ACPI_CAST_PTR (char, IndexOp->Common.Node);
+    if (!Tag)
+    {
+        return;
+    }
+
+    /* Match the name in the info table */
+
+    Info = AcpiAhMatchPredefinedName (Tag);
+    if (Info)
+    {
+        AcpiOsPrintf ("  // %4.4s: %s", Tag,
+            ACPI_CAST_PTR (char, Info->Description));
+    }
+
+#endif
+    return;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmMethodFlags
+ *
+ * PARAMETERS:  Op              - Method Object to be examined
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode control method flags
+ *
+ ******************************************************************************/
+
+void
+AcpiDmMethodFlags (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    UINT32                  Flags;
+    UINT32                  Args;
+
+
+    /* The next Op contains the flags */
+
+    Op = AcpiPsGetDepthNext (NULL, Op);
+    Flags = (UINT8) Op->Common.Value.Integer;
+    Args = Flags & 0x07;
+
+    /* Mark the Op as completed */
+
+    Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+
+    /* 1) Method argument count */
+
+    AcpiOsPrintf (", %u, ", Args);
+
+    /* 2) Serialize rule */
+
+    if (!(Flags & 0x08))
+    {
+        AcpiOsPrintf ("Not");
+    }
+
+    AcpiOsPrintf ("Serialized");
+
+    /* 3) SyncLevel */
+
+    if (Flags & 0xF0)
+    {
+        AcpiOsPrintf (", %u", Flags >> 4);
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmFieldFlags
+ *
+ * PARAMETERS:  Op              - Field Object to be examined
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode Field definition flags
+ *
+ ******************************************************************************/
+
+void
+AcpiDmFieldFlags (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    UINT32                  Flags;
+
+
+    Op = Op->Common.Next;
+    Flags = (UINT8) Op->Common.Value.Integer;
+
+    /* Mark the Op as completed */
+
+    Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+
+    AcpiOsPrintf ("%s, ", AcpiGbl_AccessTypes [Flags & 0x07]);
+    AcpiOsPrintf ("%s, ", AcpiGbl_LockRule [(Flags & 0x10) >> 4]);
+    AcpiOsPrintf ("%s)",  AcpiGbl_UpdateRules [(Flags & 0x60) >> 5]);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmAddressSpace
+ *
+ * PARAMETERS:  SpaceId         - ID to be translated
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode a SpaceId to an AddressSpaceKeyword
+ *
+ ******************************************************************************/
+
+void
+AcpiDmAddressSpace (
+    UINT8                   SpaceId)
+{
+
+    if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS)
+    {
+        if (SpaceId == 0x7F)
+        {
+            AcpiOsPrintf ("FFixedHW, ");
+        }
+        else
+        {
+            AcpiOsPrintf ("0x%.2X, ", SpaceId);
+        }
+    }
+    else
+    {
+        AcpiOsPrintf ("%s, ", AcpiGbl_RegionTypes [SpaceId]);
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmRegionFlags
+ *
+ * PARAMETERS:  Op              - Object to be examined
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode OperationRegion flags
+ *
+ ******************************************************************************/
+
+void
+AcpiDmRegionFlags (
+    ACPI_PARSE_OBJECT       *Op)
+{
+
+    /* The next Op contains the SpaceId */
+
+    Op = AcpiPsGetDepthNext (NULL, Op);
+
+    /* Mark the Op as completed */
+
+    Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+
+    AcpiOsPrintf (", ");
+    AcpiDmAddressSpace ((UINT8) Op->Common.Value.Integer);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmMatchOp
+ *
+ * PARAMETERS:  Op              - Match Object to be examined
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode Match opcode operands
+ *
+ ******************************************************************************/
+
+void
+AcpiDmMatchOp (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *NextOp;
+
+
+    NextOp = AcpiPsGetDepthNext (NULL, Op);
+    NextOp = NextOp->Common.Next;
+
+    if (!NextOp)
+    {
+        /* Handle partial tree during single-step */
+
+        return;
+    }
+
+    /* Mark the two nodes that contain the encoding for the match keywords */
+
+    NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP;
+
+    NextOp = NextOp->Common.Next;
+    NextOp = NextOp->Common.Next;
+    NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmMatchKeyword
+ *
+ * PARAMETERS:  Op              - Match Object to be examined
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Decode Match opcode operands
+ *
+ ******************************************************************************/
+
+static void
+AcpiDmMatchKeyword (
+    ACPI_PARSE_OBJECT       *Op)
+{
+
+    if (((UINT32) Op->Common.Value.Integer) > ACPI_MAX_MATCH_OPCODE)
+    {
+        AcpiOsPrintf ("/* Unknown Match Keyword encoding */");
+    }
+    else
+    {
+        AcpiOsPrintf ("%s",
+            AcpiGbl_MatchOps[(ACPI_SIZE) Op->Common.Value.Integer]);
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmDisassembleOneOp
+ *
+ * PARAMETERS:  WalkState           - Current walk info
+ *              Info                - Parse tree walk info
+ *              Op                  - Op that is to be printed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Disassemble a single AML opcode
+ *
+ ******************************************************************************/
+
+void
+AcpiDmDisassembleOneOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_OP_WALK_INFO       *Info,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    const ACPI_OPCODE_INFO  *OpInfo = NULL;
+    UINT32                  Offset;
+    UINT32                  Length;
+    ACPI_PARSE_OBJECT       *Child;
+    ACPI_STATUS             Status;
+    UINT8                   *Aml;
+    const AH_DEVICE_ID      *IdInfo;
+
+
+    if (!Op)
+    {
+        AcpiOsPrintf ("<NULL OP PTR>");
+        return;
+    }
+
+    if (Op->Common.DisasmFlags & ACPI_PARSEOP_ELSEIF)
+    {
+        return; /* ElseIf macro was already emitted */
+    }
+
+    switch (Op->Common.DisasmOpcode)
+    {
+    case ACPI_DASM_MATCHOP:
+
+        AcpiDmMatchKeyword (Op);
+        return;
+
+    case ACPI_DASM_LNOT_SUFFIX:
+
+        if (!AcpiGbl_CstyleDisassembly)
+        {
+            switch (Op->Common.AmlOpcode)
+            {
+            case AML_LEQUAL_OP:
+                AcpiOsPrintf ("LNotEqual");
+                break;
+
+            case AML_LGREATER_OP:
+                AcpiOsPrintf ("LLessEqual");
+                break;
+
+            case AML_LLESS_OP:
+                AcpiOsPrintf ("LGreaterEqual");
+                break;
+
+            default:
+                break;
+            }
+        }
+
+        Op->Common.DisasmOpcode = 0;
+        Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+        return;
+
+    default:
+        break;
+    }
+
+    OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+
+    /* The op and arguments */
+
+    switch (Op->Common.AmlOpcode)
+    {
+    case AML_LNOT_OP:
+
+        Child = Op->Common.Value.Arg;
+        if ((Child->Common.AmlOpcode == AML_LEQUAL_OP) ||
+            (Child->Common.AmlOpcode == AML_LGREATER_OP) ||
+            (Child->Common.AmlOpcode == AML_LLESS_OP))
+        {
+            Child->Common.DisasmOpcode = ACPI_DASM_LNOT_SUFFIX;
+            Op->Common.DisasmOpcode = ACPI_DASM_LNOT_PREFIX;
+        }
+        else
+        {
+            AcpiOsPrintf ("%s", OpInfo->Name);
+        }
+        break;
+
+    case AML_BYTE_OP:
+
+        AcpiOsPrintf ("0x%2.2X", (UINT32) Op->Common.Value.Integer);
+        break;
+
+    case AML_WORD_OP:
+
+        if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID)
+        {
+            AcpiDmDecompressEisaId ((UINT32) Op->Common.Value.Integer);
+        }
+        else
+        {
+            AcpiOsPrintf ("0x%4.4X", (UINT32) Op->Common.Value.Integer);
+        }
+        break;
+
+    case AML_DWORD_OP:
+
+        if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID)
+        {
+            AcpiDmDecompressEisaId ((UINT32) Op->Common.Value.Integer);
+        }
+        else
+        {
+            AcpiOsPrintf ("0x%8.8X", (UINT32) Op->Common.Value.Integer);
+        }
+        break;
+
+    case AML_QWORD_OP:
+
+        AcpiOsPrintf ("0x%8.8X%8.8X",
+            ACPI_FORMAT_UINT64 (Op->Common.Value.Integer));
+        break;
+
+    case AML_STRING_OP:
+
+        AcpiUtPrintString (Op->Common.Value.String, ACPI_UINT16_MAX);
+
+        /* For _HID/_CID strings, attempt to output a descriptive comment */
+
+        if (Op->Common.DisasmOpcode == ACPI_DASM_HID_STRING)
+        {
+            /* If we know about the ID, emit the description */
+
+            IdInfo = AcpiAhMatchHardwareId (Op->Common.Value.String);
+            if (IdInfo)
+            {
+                AcpiOsPrintf (" /* %s */", IdInfo->Description);
+            }
+        }
+        break;
+
+    case AML_BUFFER_OP:
+        /*
+         * Determine the type of buffer. We can have one of the following:
+         *
+         * 1) ResourceTemplate containing Resource Descriptors.
+         * 2) Unicode String buffer
+         * 3) ASCII String buffer
+         * 4) Raw data buffer (if none of the above)
+         *
+         * Since there are no special AML opcodes to differentiate these
+         * types of buffers, we have to closely look at the data in the
+         * buffer to determine the type.
+         */
+        if (!AcpiGbl_NoResourceDisassembly)
+        {
+            Status = AcpiDmIsResourceTemplate (WalkState, Op);
+            if (ACPI_SUCCESS (Status))
+            {
+                Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
+                AcpiOsPrintf ("ResourceTemplate");
+                break;
+            }
+            else if (Status == AE_AML_NO_RESOURCE_END_TAG)
+            {
+                AcpiOsPrintf (
+                    "/**** Is ResourceTemplate, "
+                    "but EndTag not at buffer end ****/ ");
+            }
+        }
+
+        if (AcpiDmIsUuidBuffer (Op))
+        {
+            Op->Common.DisasmOpcode = ACPI_DASM_UUID;
+            AcpiOsPrintf ("ToUUID (");
+        }
+        else if (AcpiDmIsUnicodeBuffer (Op))
+        {
+            Op->Common.DisasmOpcode = ACPI_DASM_UNICODE;
+            AcpiOsPrintf ("Unicode (");
+        }
+        else if (AcpiDmIsStringBuffer (Op))
+        {
+            Op->Common.DisasmOpcode = ACPI_DASM_STRING;
+            AcpiOsPrintf ("Buffer");
+        }
+        else if (AcpiDmIsPldBuffer (Op))
+        {
+            Op->Common.DisasmOpcode = ACPI_DASM_PLD_METHOD;
+            AcpiOsPrintf ("ToPLD (");
+        }
+        else
+        {
+            Op->Common.DisasmOpcode = ACPI_DASM_BUFFER;
+            AcpiOsPrintf ("Buffer");
+        }
+        break;
+
+    case AML_INT_NAMEPATH_OP:
+
+        AcpiDmNamestring (Op->Common.Value.Name);
+        break;
+
+    case AML_INT_NAMEDFIELD_OP:
+
+        Length = AcpiDmDumpName (Op->Named.Name);
+        AcpiOsPrintf (",%*.s  %u", (unsigned) (5 - Length), " ",
+            (UINT32) Op->Common.Value.Integer);
+        AcpiDmCommaIfFieldMember (Op);
+
+        Info->BitOffset += (UINT32) Op->Common.Value.Integer;
+        break;
+
+    case AML_INT_RESERVEDFIELD_OP:
+
+        /* Offset() -- Must account for previous offsets */
+
+        Offset = (UINT32) Op->Common.Value.Integer;
+        Info->BitOffset += Offset;
+
+        if (Info->BitOffset % 8 == 0)
+        {
+            AcpiOsPrintf ("Offset (0x%.2X)", ACPI_DIV_8 (Info->BitOffset));
+        }
+        else
+        {
+            AcpiOsPrintf ("    ,   %u", Offset);
+        }
+
+        AcpiDmCommaIfFieldMember (Op);
+        break;
+
+    case AML_INT_ACCESSFIELD_OP:
+    case AML_INT_EXTACCESSFIELD_OP:
+
+        AcpiOsPrintf ("AccessAs (%s, ",
+            AcpiGbl_AccessTypes [(UINT32) (Op->Common.Value.Integer & 0x7)]);
+
+        AcpiDmDecodeAttribute ((UINT8) (Op->Common.Value.Integer >> 8));
+
+        if (Op->Common.AmlOpcode == AML_INT_EXTACCESSFIELD_OP)
+        {
+            AcpiOsPrintf (" (0x%2.2X)", (unsigned)
+                ((Op->Common.Value.Integer >> 16) & 0xFF));
+        }
+
+        AcpiOsPrintf (")");
+        AcpiDmCommaIfFieldMember (Op);
+        break;
+
+    case AML_INT_CONNECTION_OP:
+        /*
+         * Two types of Connection() - one with a buffer object, the
+         * other with a namestring that points to a buffer object.
+         */
+        AcpiOsPrintf ("Connection (");
+        Child = Op->Common.Value.Arg;
+
+        if (Child->Common.AmlOpcode == AML_INT_BYTELIST_OP)
+        {
+            AcpiOsPrintf ("\n");
+
+            Aml = Child->Named.Data;
+            Length = (UINT32) Child->Common.Value.Integer;
+
+            Info->Level += 1;
+            Info->MappingOp = Op;
+            Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
+
+            AcpiDmResourceTemplate (Info, Op->Common.Parent, Aml, Length);
+
+            Info->Level -= 1;
+            AcpiDmIndent (Info->Level);
+        }
+        else
+        {
+            AcpiDmNamestring (Child->Common.Value.Name);
+        }
+
+        AcpiOsPrintf (")");
+        AcpiDmCommaIfFieldMember (Op);
+        AcpiOsPrintf ("\n");
+
+        Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; /* for now, ignore in AcpiDmAscendingOp */
+        Child->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+        break;
+
+    case AML_INT_BYTELIST_OP:
+
+        AcpiDmByteList (Info, Op);
+        break;
+
+    case AML_INT_METHODCALL_OP:
+
+        Op = AcpiPsGetDepthNext (NULL, Op);
+        Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+
+        AcpiDmNamestring (Op->Common.Value.Name);
+        break;
+
+    case AML_ELSE_OP:
+
+        AcpiDmConvertToElseIf (Op);
+        break;
+
+    case AML_EXTERNAL_OP:
+
+        if (AcpiGbl_DmEmitExternalOpcodes)
+        {
+            AcpiOsPrintf ("/* Opcode 0x15 */ ");
+
+            /* Fallthrough */
+        }
+        else
+        {
+            break;
+        }
+
+    default:
+
+        /* Just get the opcode name and print it */
+
+        AcpiOsPrintf ("%s", OpInfo->Name);
+
+
+#ifdef ACPI_DEBUGGER
+
+        if ((Op->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) &&
+            (WalkState) &&
+            (WalkState->Results) &&
+            (WalkState->ResultCount))
+        {
+            AcpiDbDecodeInternalObject (
+                WalkState->Results->Results.ObjDesc [
+                    (WalkState->ResultCount - 1) %
+                        ACPI_RESULTS_FRAME_OBJ_NUM]);
+        }
+#endif
+
+        break;
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmConvertToElseIf
+ *
+ * PARAMETERS:  OriginalElseOp          - ELSE Object to be examined
+ *
+ * RETURN:      None. Emits either an "Else" or an "ElseIf" ASL operator.
+ *
+ * DESCRIPTION: Detect and convert an If..Else..If sequence to If..ElseIf
+ *
+ * EXAMPLE:
+ *
+ * This If..Else..If nested sequence:
+ *
+ *        If (Arg0 == 1)
+ *        {
+ *            Local0 = 4
+ *        }
+ *        Else
+ *        {
+ *            If (Arg0 == 2)
+ *            {
+ *                Local0 = 5
+ *            }
+ *        }
+ *
+ * Is converted to this simpler If..ElseIf sequence:
+ *
+ *        If (Arg0 == 1)
+ *        {
+ *            Local0 = 4
+ *        }
+ *        ElseIf (Arg0 == 2)
+ *        {
+ *            Local0 = 5
+ *        }
+ *
+ * NOTE: There is no actual ElseIf AML opcode. ElseIf is essentially an ASL
+ * macro that emits an Else opcode followed by an If opcode. This function
+ * reverses these AML sequences back to an ElseIf macro where possible. This
+ * can make the disassembled ASL code simpler and more like the original code.
+ *
+ ******************************************************************************/
+
+static void
+AcpiDmConvertToElseIf (
+    ACPI_PARSE_OBJECT       *OriginalElseOp)
+{
+    ACPI_PARSE_OBJECT       *IfOp;
+    ACPI_PARSE_OBJECT       *ElseOp;
+
+
+    /*
+     * To be able to perform the conversion, two conditions must be satisfied:
+     * 1) The first child of the Else must be an If statement.
+     * 2) The If block can only be followed by an Else block and these must
+     *    be the only blocks under the original Else.
+     */
+    IfOp = OriginalElseOp->Common.Value.Arg;
+    if (!IfOp ||
+        (IfOp->Common.AmlOpcode != AML_IF_OP) ||
+        (IfOp->Asl.Next && (IfOp->Asl.Next->Common.AmlOpcode != AML_ELSE_OP)))
+    {
+        /* Not an Else..If sequence, cannot convert to ElseIf */
+
+        AcpiOsPrintf ("%s", "Else");
+        return;
+    }
+
+    /* Emit ElseIf, mark the IF as now an ELSEIF */
+
+    AcpiOsPrintf ("%s", "ElseIf");
+    IfOp->Common.DisasmFlags |= ACPI_PARSEOP_ELSEIF;
+
+    /* The IF parent will now be the same as the original ELSE parent */
+
+    IfOp->Common.Parent = OriginalElseOp->Common.Parent;
+
+    /*
+     * Update the NEXT pointers to restructure the parse tree, essentially
+     * promoting an If..Else block up to the same level as the original
+     * Else.
+     *
+     * Check if the IF has a corresponding ELSE peer
+     */
+    ElseOp = IfOp->Common.Next;
+    if (ElseOp &&
+        (ElseOp->Common.AmlOpcode == AML_ELSE_OP))
+    {
+        /* If an ELSE matches the IF, promote it also */
+
+        ElseOp->Common.Parent = OriginalElseOp->Common.Parent;
+        ElseOp->Common.Next = OriginalElseOp->Common.Next;
+    }
+    else
+    {
+        /* Otherwise, set the IF NEXT to the original ELSE NEXT */
+
+        IfOp->Common.Next = OriginalElseOp->Common.Next;
+    }
+
+    /* Detach the child IF block from the original ELSE */
+
+    OriginalElseOp->Common.Value.Arg = NULL;
+
+    /* Ignore the original ELSE from now on */
+
+    OriginalElseOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
+    OriginalElseOp->Common.DisasmOpcode = ACPI_DASM_LNOT_PREFIX;
+
+    /* Insert IF (now ELSEIF) as next peer of the original ELSE */
+
+    OriginalElseOp->Common.Next = IfOp;
+}