/******************************************************************************* * * Module Name: dmopcode - AML disassembler, specific AML opcodes * ******************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2023, 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 #include #include #include #include #include #include #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); static void AcpiDmPromoteSubtree ( ACPI_PARSE_OBJECT *StartOp); /******************************************************************************* * * 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 || (*Tag == 0)) { return; } /* Is the tag a predefined name? */ Info = AcpiAhMatchPredefinedName (Tag); if (!Info) { /* Not a predefined name (does not start with underscore) */ return; } AcpiOsPrintf (" // %4.4s: %s", Tag, ACPI_CAST_PTR (char, Info->Description)); /* String contains the prefix path, free it */ ACPI_FREE (IndexOp->Common.Value.String); IndexOp->Common.Value.String = NULL; #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 (""); 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_LOGICAL_EQUAL_OP: AcpiOsPrintf ("LNotEqual"); break; case AML_LOGICAL_GREATER_OP: AcpiOsPrintf ("LLessEqual"); break; case AML_LOGICAL_LESS_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_LOGICAL_NOT_OP: Child = Op->Common.Value.Arg; if ((Child->Common.AmlOpcode == AML_LOGICAL_EQUAL_OP) || (Child->Common.AmlOpcode == AML_LOGICAL_GREATER_OP) || (Child->Common.AmlOpcode == AML_LOGICAL_LESS_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 (","); ASL_CV_PRINT_ONE_COMMENT (Op, AML_NAMECOMMENT, NULL, 0); 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); ASL_CV_PRINT_ONE_COMMENT (Op, AML_COMMENT_END_NODE, NULL, 0); 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); ASL_CV_PRINT_ONE_COMMENT (Op, AML_COMMENT_END_NODE, NULL, 0); ASL_CV_PRINT_ONE_COMMENT (Op, AMLCOMMENT_INLINE, NULL, 0); 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_WHILE_OP: if (Op->Common.DisasmOpcode == ACPI_DASM_SWITCH) { AcpiOsPrintf ("%s", "Switch"); break; } AcpiOsPrintf ("%s", OpInfo->Name); break; case AML_IF_OP: if (Op->Common.DisasmOpcode == ACPI_DASM_CASE) { AcpiOsPrintf ("%s", "Case"); break; } AcpiOsPrintf ("%s", OpInfo->Name); break; case AML_ELSE_OP: AcpiDmConvertToElseIf (Op); break; case AML_EXTERNAL_OP: if (AcpiGbl_DmEmitExternalOpcodes) { AcpiDmEmitExternal (Op, AcpiPsGetArg(Op, 0)); } 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 a proper Else..If sequence, cannot convert to ElseIf */ if (OriginalElseOp->Common.DisasmOpcode == ACPI_DASM_DEFAULT) { AcpiOsPrintf ("%s", "Default"); return; } AcpiOsPrintf ("%s", "Else"); return; } /* Cannot have anything following the If...Else block */ ElseOp = IfOp->Common.Next; if (ElseOp && ElseOp->Common.Next) { if (OriginalElseOp->Common.DisasmOpcode == ACPI_DASM_DEFAULT) { AcpiOsPrintf ("%s", "Default"); return; } AcpiOsPrintf ("%s", "Else"); return; } if (OriginalElseOp->Common.DisasmOpcode == ACPI_DASM_DEFAULT) { /* * There is an ElseIf but in this case the Else is actually * a Default block for a Switch/Case statement. No conversion. */ AcpiOsPrintf ("%s", "Default"); return; } if (OriginalElseOp->Common.DisasmOpcode == ACPI_DASM_CASE) { /* * This ElseIf is actually a Case block for a Switch/Case * statement. Print Case but do not return so that we can * promote the subtree and keep the indentation level. */ AcpiOsPrintf ("%s", "Case"); } else { /* 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; /* Promote the entire block under the ElseIf (All Next OPs) */ AcpiDmPromoteSubtree (OriginalElseOp); } 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; } /******************************************************************************* * * FUNCTION: AcpiDmPromoteSubtree * * PARAMETERS: StartOpOp - Original parent of the entire subtree * * RETURN: None * * DESCRIPTION: Promote an entire parse subtree up one level. * ******************************************************************************/ static void AcpiDmPromoteSubtree ( ACPI_PARSE_OBJECT *StartOp) { ACPI_PARSE_OBJECT *Op; ACPI_PARSE_OBJECT *ParentOp; /* New parent for subtree elements */ ParentOp = StartOp->Common.Parent; /* First child starts the subtree */ Op = StartOp->Common.Value.Arg; /* Walk the top-level elements of the subtree */ while (Op) { Op->Common.Parent = ParentOp; if (!Op->Common.Next) { /* Last Op in list, update its next field */ Op->Common.Next = StartOp->Common.Next; break; } Op = Op->Common.Next; } }