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Diffstat (limited to 'sys/contrib/dev/acpica/psargs.c')
| -rw-r--r-- | sys/contrib/dev/acpica/psargs.c | 950 |
1 files changed, 950 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/psargs.c b/sys/contrib/dev/acpica/psargs.c new file mode 100644 index 000000000000..6b203ff0814a --- /dev/null +++ b/sys/contrib/dev/acpica/psargs.c @@ -0,0 +1,950 @@ +/****************************************************************************** + * + * Module Name: psargs - Parse AML opcode arguments + * $Revision: 35 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999, 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. + * + *****************************************************************************/ + +#define __PSARGS_C__ + +#include "acpi.h" +#include "acparser.h" +#include "amlcode.h" +#include "acnamesp.h" + +#define _COMPONENT PARSER + MODULE_NAME ("psargs") + + +UINT32 +AcpiPsPkgLengthEncodingSize ( + UINT32 FirstByte) +{ + + /* + * Bits 6-7 contain the number of bytes + * in the encoded package length (-1) + */ + + return ((FirstByte >> 6) + 1); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextPackageLength + * + * PARAMETERS: ParserState - Current parser state object + * + * RETURN: Decoded package length. On completion, the AML pointer points + * past the length byte or bytes. + * + * DESCRIPTION: Decode and return a package length field + * + ******************************************************************************/ + +UINT32 +xxxAcpiPsGetNextPackageLength ( + ACPI_PARSE_STATE *ParserState) +{ + UINT32 EncodingLength; + UINT32 PackageLength = 0; + UINT8 *AmlPtr = ParserState->Aml; + + + FUNCTION_TRACE ("PsGetNextPackageLength"); + + + EncodingLength = AcpiPsPkgLengthEncodingSize ((UINT32) GET8 (AmlPtr)); + + + switch (EncodingLength) + { + case 1: /* 1-byte encoding (bits 0-5) */ + + PackageLength = ((UINT32) GET8 (AmlPtr) & 0x3f); + break; + + + case 2: /* 2-byte encoding (next byte + bits 0-3) */ + + PackageLength = ((((UINT32) GET8 (AmlPtr + 1)) << 4) | + (((UINT32) GET8 (AmlPtr)) & 0x0f)); + break; + + + case 3: /* 3-byte encoding (next 2 bytes + bits 0-3) */ + + PackageLength = ((((UINT32) GET8 (AmlPtr + 2)) << 12) | + (((UINT32) GET8 (AmlPtr + 1)) << 4) | + (((UINT32) GET8 (AmlPtr)) & 0x0f)); + break; + + + case 4: /* 4-byte encoding (next 3 bytes + bits 0-3) */ + + PackageLength = ((((UINT32) GET8 (AmlPtr + 3)) << 20) | + (((UINT32) GET8 (AmlPtr + 2)) << 12) | + (((UINT32) GET8 (AmlPtr + 1)) << 4) | + (((UINT32) GET8 (AmlPtr)) & 0x0f)); + break; + } + + ParserState->Aml += EncodingLength; + + return_VALUE (PackageLength); +} + +UINT32 +AcpiPsGetNextPackageLength ( + ACPI_PARSE_STATE *ParserState) +{ + UINT32 EncodedLength; + UINT32 Length = 0; + + + FUNCTION_TRACE ("PsGetNextPackageLength"); + + + EncodedLength = (UINT32) GET8 (ParserState->Aml); + ParserState->Aml++; + + + switch (EncodedLength >> 6) /* bits 6-7 contain encoding scheme */ + { + case 0: /* 1-byte encoding (bits 0-5) */ + + Length = (EncodedLength & 0x3f); + break; + + + case 1: /* 2-byte encoding (next byte + bits 0-3) */ + + Length = (GET8 (ParserState->Aml) << 4) | (EncodedLength & 0xf); + ParserState->Aml++; + break; + + + case 2: /* 3-byte encoding (next 2 bytes + bits 0-3) */ + + Length = ( (GET8 (ParserState->Aml + 1) << 12) + | (GET8 (ParserState->Aml) << 4) + | (EncodedLength & 0xf)); + ParserState->Aml += 2; + break; + + + case 3: /* 4-byte encoding (next 3 bytes + bits 0-3) */ + + Length = ( (GET8 (ParserState->Aml + 2) << 20) + | (GET8 (ParserState->Aml + 1) << 12) + | (GET8 (ParserState->Aml) << 4) + | (EncodedLength & 0xf)); + ParserState->Aml += 3; + break; + } + + return_VALUE (Length); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextPackageEnd + * + * PARAMETERS: ParserState - Current parser state object + * + * RETURN: Pointer to end-of-package +1 + * + * DESCRIPTION: Get next package length and return a pointer past the end of + * the package. Consumes the package length field + * + ******************************************************************************/ + +UINT8 * +AcpiPsGetNextPackageEnd ( + ACPI_PARSE_STATE *ParserState) +{ + UINT8 *Start = ParserState->Aml; + NATIVE_UINT Length; + + + FUNCTION_TRACE ("PsGetNextPackageEnd"); + + + Length = (NATIVE_UINT) AcpiPsGetNextPackageLength (ParserState); + + return_PTR (Start + Length); /* end of package */ +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextNamestring + * + * PARAMETERS: ParserState - Current parser state object + * + * RETURN: Pointer to the start of the name string (pointer points into + * the AML. + * + * DESCRIPTION: Get next raw namestring within the AML stream. Handles all name + * prefix characters. Set parser state to point past the string. + * (Name is consumed from the AML.) + * + ******************************************************************************/ + +NATIVE_CHAR * +AcpiPsGetNextNamestring ( + ACPI_PARSE_STATE *ParserState) +{ + UINT8 *Start = ParserState->Aml; + UINT8 *End = ParserState->Aml; + UINT32 Length; + + + FUNCTION_TRACE ("PsGetNextNamestring"); + + + /* Handle multiple prefix characters */ + + while (AcpiPsIsPrefixChar (GET8 (End))) + { + /* include prefix '\\' or '^' */ + + End++; + } + + /* Decode the path */ + + switch (GET8 (End)) + { + case 0: + + /* NullName */ + + if (End == Start) + { + Start = NULL; + } + End++; + break; + + + case AML_DUAL_NAME_PREFIX: + + /* two name segments */ + + End += 9; + break; + + + case AML_MULTI_NAME_PREFIX_OP: + + /* multiple name segments */ + + Length = (UINT32) GET8 (End + 1) * 4; + End += 2 + Length; + break; + + + default: + + /* single name segment */ + /* assert (AcpiPsIsLead (GET8 (End))); */ + + End += 4; + break; + } + + ParserState->Aml = (UINT8*) End; + + return_PTR ((NATIVE_CHAR *) Start); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextNamepath + * + * PARAMETERS: ParserState - Current parser state object + * Arg - Where the namepath will be stored + * ArgCount - If the namepath points to a control method + * the method's argument is returned here. + * MethodCall - Whether the namepath can be the start + * of a method call + * + * RETURN: None + * + * DESCRIPTION: Get next name (if method call, push appropriate # args). Names + * are looked up in either the parsed or internal namespace to + * determine if the name represents a control method. If a method + * is found, the number of arguments to the method is returned. + * This information is critical for parsing to continue correctly. + * + ******************************************************************************/ + + +#ifdef PARSER_ONLY + +void +AcpiPsGetNextNamepath ( + ACPI_PARSE_STATE *ParserState, + ACPI_PARSE_OBJECT *Arg, + UINT32 *ArgCount, + BOOLEAN MethodCall) +{ + NATIVE_CHAR *Path; + ACPI_PARSE_OBJECT *NameOp; + ACPI_PARSE_OBJECT *Op; + ACPI_PARSE_OBJECT *Count; + + + FUNCTION_TRACE ("PsGetNextNamepath"); + + + Path = AcpiPsGetNextNamestring (ParserState); + if (!Path || !MethodCall) + { + /* Null name case, create a null namepath object */ + + AcpiPsInitOp (Arg, AML_NAMEPATH_OP); + Arg->Value.Name = Path; + return_VOID; + } + + + if (AcpiGbl_ParsedNamespaceRoot) + { + /* + * Lookup the name in the parsed namespace + */ + + Op = NULL; + if (MethodCall) + { + Op = AcpiPsFind (AcpiPsGetParentScope (ParserState), + Path, AML_METHOD_OP, 0); + } + + if (Op) + { + if (Op->Opcode == AML_METHOD_OP) + { + /* + * The name refers to a control method, so this namepath is a + * method invocation. We need to 1) Get the number of arguments + * associated with this method, and 2) Change the NAMEPATH + * object into a METHODCALL object. + */ + + Count = AcpiPsGetArg (Op, 0); + if (Count && Count->Opcode == AML_BYTE_OP) + { + NameOp = AcpiPsAllocOp (AML_NAMEPATH_OP); + if (NameOp) + { + /* Change arg into a METHOD CALL and attach the name */ + + AcpiPsInitOp (Arg, AML_METHODCALL_OP); + + NameOp->Value.Name = Path; + + /* Point METHODCALL/NAME to the METHOD Node */ + + NameOp->Node = (ACPI_NAMESPACE_NODE *) Op; + AcpiPsAppendArg (Arg, NameOp); + + *ArgCount = Count->Value.Integer & + METHOD_FLAGS_ARG_COUNT; + } + } + + return_VOID; + } + + /* + * Else this is normal named object reference. + * Just init the NAMEPATH object with the pathname. + * (See code below) + */ + } + } + + + /* + * Either we didn't find the object in the namespace, or the object is + * something other than a control method. Just initialize the Op with the + * pathname + */ + + AcpiPsInitOp (Arg, AML_NAMEPATH_OP); + Arg->Value.Name = Path; + + + return_VOID; +} + + +#else + + +void +AcpiPsGetNextNamepath ( + ACPI_PARSE_STATE *ParserState, + ACPI_PARSE_OBJECT *Arg, + UINT32 *ArgCount, + BOOLEAN MethodCall) +{ + NATIVE_CHAR *Path; + ACPI_PARSE_OBJECT *NameOp; + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *MethodNode = NULL; + ACPI_NAMESPACE_NODE *Node; + ACPI_GENERIC_STATE ScopeInfo; + + + FUNCTION_TRACE ("PsGetNextNamepath"); + + + Path = AcpiPsGetNextNamestring (ParserState); + if (!Path || !MethodCall) + { + /* Null name case, create a null namepath object */ + + AcpiPsInitOp (Arg, AML_NAMEPATH_OP); + Arg->Value.Name = Path; + return_VOID; + } + + + if (MethodCall) + { + /* + * Lookup the name in the internal namespace + */ + ScopeInfo.Scope.Node = NULL; + Node = ParserState->StartNode; + if (Node) + { + ScopeInfo.Scope.Node = Node; + } + + /* + * Lookup object. We don't want to add anything new to the namespace + * here, however. So we use MODE_EXECUTE. Allow searching of the + * parent tree, but don't open a new scope -- we just want to lookup the + * object (MUST BE mode EXECUTE to perform upsearch) + */ + + Status = AcpiNsLookup (&ScopeInfo, Path, ACPI_TYPE_ANY, IMODE_EXECUTE, + NS_SEARCH_PARENT | NS_DONT_OPEN_SCOPE, NULL, + &Node); + if (ACPI_SUCCESS (Status)) + { + if (Node->Type == ACPI_TYPE_METHOD) + { + MethodNode = Node; + DEBUG_PRINT (TRACE_PARSE, + ("PsGetNextNamepath: method - %p Path=%p\n", + MethodNode, Path)); + + NameOp = AcpiPsAllocOp (AML_NAMEPATH_OP); + if (NameOp) + { + /* Change arg into a METHOD CALL and attach name to it */ + + AcpiPsInitOp (Arg, AML_METHODCALL_OP); + + NameOp->Value.Name = Path; + + /* Point METHODCALL/NAME to the METHOD Node */ + + NameOp->Node = MethodNode; + AcpiPsAppendArg (Arg, NameOp); + + *ArgCount = ((ACPI_OPERAND_OBJECT *) MethodNode->Object)->Method.ParamCount; + } + + return_VOID; + } + + /* + * Else this is normal named object reference. + * Just init the NAMEPATH object with the pathname. + * (See code below) + */ + } + } + + /* + * Either we didn't find the object in the namespace, or the object is + * something other than a control method. Just initialize the Op with the + * pathname + */ + + AcpiPsInitOp (Arg, AML_NAMEPATH_OP); + Arg->Value.Name = Path; + + + return_VOID; +} + +#endif + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextSimpleArg + * + * PARAMETERS: ParserState - Current parser state object + * ArgType - The argument type (AML_*_ARG) + * Arg - Where the argument is returned + * + * RETURN: None + * + * DESCRIPTION: Get the next simple argument (constant, string, or namestring) + * + ******************************************************************************/ + +void +AcpiPsGetNextSimpleArg ( + ACPI_PARSE_STATE *ParserState, + UINT32 ArgType, + ACPI_PARSE_OBJECT *Arg) +{ + + + FUNCTION_TRACE_U32 ("PsGetNextSimpleArg", ArgType); + + + switch (ArgType) + { + + case ARGP_BYTEDATA: + + AcpiPsInitOp (Arg, AML_BYTE_OP); + Arg->Value.Integer = (UINT32) GET8 (ParserState->Aml); + ParserState->Aml++; + break; + + + case ARGP_WORDDATA: + + AcpiPsInitOp (Arg, AML_WORD_OP); + + /* Get 2 bytes from the AML stream */ + + MOVE_UNALIGNED16_TO_32 (&Arg->Value.Integer, ParserState->Aml); + ParserState->Aml += 2; + break; + + + case ARGP_DWORDDATA: + + AcpiPsInitOp (Arg, AML_DWORD_OP); + + /* Get 4 bytes from the AML stream */ + + MOVE_UNALIGNED32_TO_32 (&Arg->Value.Integer, ParserState->Aml); + ParserState->Aml += 4; + break; + + + case ARGP_CHARLIST: + + AcpiPsInitOp (Arg, AML_STRING_OP); + Arg->Value.String = (char*) ParserState->Aml; + + while (GET8 (ParserState->Aml) != '\0') + { + ParserState->Aml++; + } + ParserState->Aml++; + break; + + + case ARGP_NAME: + case ARGP_NAMESTRING: + + AcpiPsInitOp (Arg, AML_NAMEPATH_OP); + Arg->Value.Name = AcpiPsGetNextNamestring (ParserState); + break; + } + + return_VOID; +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextField + * + * PARAMETERS: ParserState - Current parser state object + * + * RETURN: A newly allocated FIELD op + * + * DESCRIPTION: Get next field (NamedField, ReservedField, or AccessField) + * + ******************************************************************************/ + +ACPI_PARSE_OBJECT * +AcpiPsGetNextField ( + ACPI_PARSE_STATE *ParserState) +{ + ACPI_PTRDIFF AmlOffset = ParserState->Aml - + ParserState->AmlStart; + ACPI_PARSE_OBJECT *Field; + UINT16 Opcode; + UINT32 Name; + + + FUNCTION_TRACE ("PsGetNextField"); + + + /* determine field type */ + + switch (GET8 (ParserState->Aml)) + { + + default: + + Opcode = AML_NAMEDFIELD_OP; + break; + + + case 0x00: + + Opcode = AML_RESERVEDFIELD_OP; + ParserState->Aml++; + break; + + + case 0x01: + + Opcode = AML_ACCESSFIELD_OP; + ParserState->Aml++; + break; + } + + + /* Allocate a new field op */ + + Field = AcpiPsAllocOp (Opcode); + if (Field) + { + Field->AmlOffset = AmlOffset; + + /* Decode the field type */ + + switch (Opcode) + { + case AML_NAMEDFIELD_OP: + + /* Get the 4-character name */ + + MOVE_UNALIGNED32_TO_32 (&Name, ParserState->Aml); + AcpiPsSetName (Field, Name); + ParserState->Aml += 4; + + /* Get the length which is encoded as a package length */ + + Field->Value.Size = AcpiPsGetNextPackageLength (ParserState); + break; + + + case AML_RESERVEDFIELD_OP: + + /* Get the length which is encoded as a package length */ + + Field->Value.Size = AcpiPsGetNextPackageLength (ParserState); + break; + + + case AML_ACCESSFIELD_OP: + + /* Get AccessType and AccessAtrib and merge into the field Op */ + + Field->Value.Integer = ((GET8 (ParserState->Aml) << 8) | + GET8 (ParserState->Aml)); + ParserState->Aml += 2; + break; + } + } + + return_PTR (Field); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsGetNextArg + * + * PARAMETERS: ParserState - Current parser state object + * ArgType - The argument type (AML_*_ARG) + * ArgCount - If the argument points to a control method + * the method's argument is returned here. + * + * RETURN: An op object containing the next argument. + * + * DESCRIPTION: Get next argument (including complex list arguments that require + * pushing the parser stack) + * + ******************************************************************************/ + +ACPI_PARSE_OBJECT * +AcpiPsGetNextArg ( + ACPI_PARSE_STATE *ParserState, + UINT32 ArgType, + UINT32 *ArgCount) +{ + ACPI_PARSE_OBJECT *Arg = NULL; + ACPI_PARSE_OBJECT *Prev = NULL; + ACPI_PARSE_OBJECT *Field; + UINT32 Subop; + + + FUNCTION_TRACE_PTR ("PsGetNextArg", ParserState); + + + switch (ArgType) + { + case ARGP_BYTEDATA: + case ARGP_WORDDATA: + case ARGP_DWORDDATA: + case ARGP_CHARLIST: + case ARGP_NAME: + case ARGP_NAMESTRING: + + /* constants, strings, and namestrings are all the same size */ + + Arg = AcpiPsAllocOp (AML_BYTE_OP); + if (Arg) + { + AcpiPsGetNextSimpleArg (ParserState, ArgType, Arg); + } + break; + + + case ARGP_PKGLENGTH: + + /* package length, nothing returned */ + + ParserState->PkgEnd = AcpiPsGetNextPackageEnd (ParserState); + break; + + + case ARGP_FIELDLIST: + + if (ParserState->Aml < ParserState->PkgEnd) + { + /* non-empty list */ + + while (ParserState->Aml < ParserState->PkgEnd) + { + Field = AcpiPsGetNextField (ParserState); + if (!Field) + { + break; + } + + if (Prev) + { + Prev->Next = Field; + } + + else + { + Arg = Field; + } + + Prev = Field; + } + + /* skip to End of byte data */ + + ParserState->Aml = ParserState->PkgEnd; + } + break; + + + case ARGP_BYTELIST: + + if (ParserState->Aml < ParserState->PkgEnd) + { + /* non-empty list */ + + Arg = AcpiPsAllocOp (AML_BYTELIST_OP); + if (Arg) + { + /* fill in bytelist data */ + + Arg->Value.Size = (ParserState->PkgEnd - ParserState->Aml); + ((ACPI_PARSE2_OBJECT *) Arg)->Data = ParserState->Aml; + } + + /* skip to End of byte data */ + + ParserState->Aml = ParserState->PkgEnd; + } + break; + + + case ARGP_TARGET: + case ARGP_SUPERNAME: + { + Subop = AcpiPsPeekOpcode (ParserState); + if (Subop == 0 || + AcpiPsIsLeadingChar (Subop) || + AcpiPsIsPrefixChar (Subop)) + { + /* NullName or NameString */ + + Arg = AcpiPsAllocOp (AML_NAMEPATH_OP); + if (Arg) + { + AcpiPsGetNextNamepath (ParserState, Arg, ArgCount, 0); + } + } + + else + { + /* single complex argument, nothing returned */ + + *ArgCount = 1; + } + } + break; + + + case ARGP_DATAOBJ: + case ARGP_TERMARG: + + /* single complex argument, nothing returned */ + + *ArgCount = 1; + break; + + + case ARGP_DATAOBJLIST: + case ARGP_TERMLIST: + case ARGP_OBJLIST: + + if (ParserState->Aml < ParserState->PkgEnd) + { + /* non-empty list of variable arguments, nothing returned */ + + *ArgCount = ACPI_VAR_ARGS; + } + break; + } + + return_PTR (Arg); +} |