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Diffstat (limited to 'source/compiler/aslpredef.c')
| -rw-r--r-- | source/compiler/aslpredef.c | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/source/compiler/aslpredef.c b/source/compiler/aslpredef.c new file mode 100644 index 0000000..8a25a9d --- /dev/null +++ b/source/compiler/aslpredef.c @@ -0,0 +1,839 @@ +/****************************************************************************** + * + * Module Name: aslpredef - support for ACPI predefined names + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, 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. + */ + +#define ACPI_CREATE_PREDEFINED_TABLE + +#include "aslcompiler.h" +#include "aslcompiler.y.h" +#include "acpredef.h" + + +#define _COMPONENT ACPI_COMPILER + ACPI_MODULE_NAME ("aslpredef") + + +/* Local prototypes */ + +static void +ApCheckForUnexpectedReturnValue ( + ACPI_PARSE_OBJECT *Op, + ASL_METHOD_INFO *MethodInfo); + +static UINT32 +ApCheckForSpecialName ( + ACPI_PARSE_OBJECT *Op, + char *Name); + +static void +ApCheckObjectType ( + ACPI_PARSE_OBJECT *Op, + UINT32 ExpectedBtypes); + +static void +ApGetExpectedTypes ( + char *Buffer, + UINT32 ExpectedBtypes); + + +/* + * Names for the types that can be returned by the predefined objects. + * Used for warning messages. Must be in the same order as the ACPI_RTYPEs + */ +static const char *AcpiRtypeNames[] = +{ + "/Integer", + "/String", + "/Buffer", + "/Package", + "/Reference", +}; + +/* + * Predefined names for use in Resource Descriptors. These names do not + * appear in the global Predefined Name table (since these names never + * appear in actual AML byte code, only in the original ASL) + */ +static const ACPI_PREDEFINED_INFO ResourceNames[] = { + {{"_ALN", 0, 0}}, + {{"_ASI", 0, 0}}, + {{"_ASZ", 0, 0}}, + {{"_ATT", 0, 0}}, + {{"_BAS", 0, 0}}, + {{"_BM_", 0, 0}}, + {{"_DBT", 0, 0}}, /* Acpi 5.0 */ + {{"_DEC", 0, 0}}, + {{"_DPL", 0, 0}}, /* Acpi 5.0 */ + {{"_DRS", 0, 0}}, /* Acpi 5.0 */ + {{"_END", 0, 0}}, /* Acpi 5.0 */ + {{"_FLC", 0, 0}}, /* Acpi 5.0 */ + {{"_GRA", 0, 0}}, + {{"_HE_", 0, 0}}, + {{"_INT", 0, 0}}, + {{"_IOR", 0, 0}}, /* Acpi 5.0 */ + {{"_LEN", 0, 0}}, + {{"_LIN", 0, 0}}, /* Acpi 5.0 */ + {{"_LL_", 0, 0}}, + {{"_MAF", 0, 0}}, + {{"_MAX", 0, 0}}, + {{"_MEM", 0, 0}}, + {{"_MIF", 0, 0}}, + {{"_MIN", 0, 0}}, + {{"_MOD", 0, 0}}, /* Acpi 5.0 */ + {{"_MTP", 0, 0}}, + {{"_PAR", 0, 0}}, /* Acpi 5.0 */ + {{"_PHA", 0, 0}}, /* Acpi 5.0 */ + {{"_PIN", 0, 0}}, /* Acpi 5.0 */ + {{"_PPI", 0, 0}}, /* Acpi 5.0 */ + {{"_POL", 0, 0}}, /* Acpi 5.0 */ + {{"_RBO", 0, 0}}, + {{"_RBW", 0, 0}}, + {{"_RNG", 0, 0}}, + {{"_RT_", 0, 0}}, /* Acpi 3.0 */ + {{"_RW_", 0, 0}}, + {{"_RXL", 0, 0}}, /* Acpi 5.0 */ + {{"_SHR", 0, 0}}, + {{"_SIZ", 0, 0}}, + {{"_SLV", 0, 0}}, /* Acpi 5.0 */ + {{"_SPE", 0, 0}}, /* Acpi 5.0 */ + {{"_STB", 0, 0}}, /* Acpi 5.0 */ + {{"_TRA", 0, 0}}, + {{"_TRS", 0, 0}}, + {{"_TSF", 0, 0}}, /* Acpi 3.0 */ + {{"_TTP", 0, 0}}, + {{"_TXL", 0, 0}}, /* Acpi 5.0 */ + {{"_TYP", 0, 0}}, + {{"_VEN", 0, 0}}, /* Acpi 5.0 */ + {{{0,0,0,0}, 0, 0}} /* Table terminator */ +}; + +static const ACPI_PREDEFINED_INFO ScopeNames[] = { + {{"_SB_", 0, 0}}, + {{"_SI_", 0, 0}}, + {{"_TZ_", 0, 0}}, + {{{0,0,0,0}, 0, 0}} /* Table terminator */ +}; + + +/******************************************************************************* + * + * FUNCTION: ApCheckForPredefinedMethod + * + * PARAMETERS: Op - A parse node of type "METHOD". + * MethodInfo - Saved info about this method + * + * RETURN: None + * + * DESCRIPTION: If method is a predefined name, check that the number of + * arguments and the return type (returns a value or not) + * is correct. + * + ******************************************************************************/ + +BOOLEAN +ApCheckForPredefinedMethod ( + ACPI_PARSE_OBJECT *Op, + ASL_METHOD_INFO *MethodInfo) +{ + UINT32 Index; + UINT32 RequiredArgsCurrent; + UINT32 RequiredArgsOld; + + + /* Check for a match against the predefined name list */ + + Index = ApCheckForPredefinedName (Op, Op->Asl.NameSeg); + + switch (Index) + { + case ACPI_NOT_RESERVED_NAME: /* No underscore or _Txx or _xxx name not matched */ + case ACPI_PREDEFINED_NAME: /* Resource Name or reserved scope name */ + case ACPI_COMPILER_RESERVED_NAME: /* A _Txx that was not emitted by compiler */ + + /* Just return, nothing to do */ + return (FALSE); + + + case ACPI_EVENT_RESERVED_NAME: /* _Lxx/_Exx/_Wxx/_Qxx methods */ + + Gbl_ReservedMethods++; + + /* NumArguments must be zero for all _Lxx/_Exx/_Wxx/_Qxx methods */ + + if (MethodInfo->NumArguments != 0) + { + sprintf (MsgBuffer, "%s requires %u", Op->Asl.ExternalName, 0); + + AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op, + MsgBuffer); + } + break; + + + default: + /* + * Matched a predefined method name + * + * Validate the ASL-defined argument count. Allow two different legal + * arg counts. + */ + Gbl_ReservedMethods++; + + RequiredArgsCurrent = PredefinedNames[Index].Info.ParamCount & 0x0F; + RequiredArgsOld = PredefinedNames[Index].Info.ParamCount >> 4; + + if ((MethodInfo->NumArguments != RequiredArgsCurrent) && + (MethodInfo->NumArguments != RequiredArgsOld)) + { + sprintf (MsgBuffer, "%4.4s requires %u", + PredefinedNames[Index].Info.Name, RequiredArgsCurrent); + + if (MethodInfo->NumArguments > RequiredArgsCurrent) + { + AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op, + MsgBuffer); + } + else + { + AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_LO, Op, + MsgBuffer); + } + } + + /* + * Check if method returns no value, but the predefined name is + * required to return a value + */ + if (MethodInfo->NumReturnNoValue && + PredefinedNames[Index].Info.ExpectedBtypes) + { + ApGetExpectedTypes (StringBuffer, + PredefinedNames[Index].Info.ExpectedBtypes); + + sprintf (MsgBuffer, "%s required for %4.4s", + StringBuffer, PredefinedNames[Index].Info.Name); + + AslError (ASL_WARNING, ASL_MSG_RESERVED_RETURN_VALUE, Op, + MsgBuffer); + } + break; + } + + return (TRUE); +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckForUnexpectedReturnValue + * + * PARAMETERS: Op - A parse node of type "RETURN". + * MethodInfo - Saved info about this method + * + * RETURN: None + * + * DESCRIPTION: Check for an unexpected return value from a predefined method. + * Invoked for predefined methods that are defined to not return + * any value. If there is a return value, issue a remark, since + * the ASL writer may be confused as to the method definition + * and/or functionality. + * + * Note: We ignore all return values of "Zero", since this is what a standalone + * Return() statement will always generate -- so we ignore it here -- + * i.e., there is no difference between Return() and Return(Zero). + * Also, a null Return() will be disassembled to return(Zero) -- so, we + * don't want to generate extraneous remarks/warnings for a disassembled + * ASL file. + * + ******************************************************************************/ + +static void +ApCheckForUnexpectedReturnValue ( + ACPI_PARSE_OBJECT *Op, + ASL_METHOD_INFO *MethodInfo) +{ + ACPI_PARSE_OBJECT *ReturnValueOp; + + + /* Ignore Return() and Return(Zero) (they are the same) */ + + ReturnValueOp = Op->Asl.Child; + if (ReturnValueOp->Asl.ParseOpcode == PARSEOP_ZERO) + { + return; + } + + /* We have a valid return value, but the reserved name did not expect it */ + + AslError (ASL_WARNING, ASL_MSG_RESERVED_NO_RETURN_VAL, + Op, MethodInfo->Op->Asl.ExternalName); +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckPredefinedReturnValue + * + * PARAMETERS: Op - A parse node of type "RETURN". + * MethodInfo - Saved info about this method + * + * RETURN: None + * + * DESCRIPTION: If method is a predefined name, attempt to validate the return + * value. Only "static" types can be validated - a simple return + * of an integer/string/buffer/package or a named reference to + * a static object. Values such as a Localx or Argx or a control + * method invocation are not checked. Issue a warning if there is + * a valid return value, but the reserved method defines no + * return value. + * + ******************************************************************************/ + +void +ApCheckPredefinedReturnValue ( + ACPI_PARSE_OBJECT *Op, + ASL_METHOD_INFO *MethodInfo) +{ + UINT32 Index; + ACPI_PARSE_OBJECT *ReturnValueOp; + + + /* Check parent method for a match against the predefined name list */ + + Index = ApCheckForPredefinedName (MethodInfo->Op, + MethodInfo->Op->Asl.NameSeg); + + switch (Index) + { + case ACPI_EVENT_RESERVED_NAME: /* _Lxx/_Exx/_Wxx/_Qxx methods */ + + /* No return value expected, warn if there is one */ + + ApCheckForUnexpectedReturnValue (Op, MethodInfo); + return; + + case ACPI_NOT_RESERVED_NAME: /* No underscore or _Txx or _xxx name not matched */ + case ACPI_PREDEFINED_NAME: /* Resource Name or reserved scope name */ + case ACPI_COMPILER_RESERVED_NAME: /* A _Txx that was not emitted by compiler */ + + /* Just return, nothing to do */ + return; + + default: /* A standard predefined ACPI name */ + + if (!PredefinedNames[Index].Info.ExpectedBtypes) + { + /* No return value expected, warn if there is one */ + + ApCheckForUnexpectedReturnValue (Op, MethodInfo); + return; + } + + /* Get the object returned, it is the next argument */ + + ReturnValueOp = Op->Asl.Child; + switch (ReturnValueOp->Asl.ParseOpcode) + { + case PARSEOP_ZERO: + case PARSEOP_ONE: + case PARSEOP_ONES: + case PARSEOP_INTEGER: + case PARSEOP_STRING_LITERAL: + case PARSEOP_BUFFER: + case PARSEOP_PACKAGE: + + /* Static data return object - check against expected type */ + + ApCheckObjectType (ReturnValueOp, + PredefinedNames[Index].Info.ExpectedBtypes); + break; + + default: + + /* + * All other ops are very difficult or impossible to typecheck at + * compile time. These include all Localx, Argx, and method + * invocations. Also, NAMESEG and NAMESTRING because the type of + * any named object can be changed at runtime (for example, + * CopyObject will change the type of the target object.) + */ + break; + } + } +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckForPredefinedObject + * + * PARAMETERS: Op - A parse node + * Name - The ACPI name to be checked + * + * RETURN: None + * + * DESCRIPTION: Check for a predefined name for a static object (created via + * the ASL Name operator). If it is a predefined ACPI name, ensure + * that the name does not require any arguments (which would + * require a control method implemenation of the name), and that + * the type of the object is one of the expected types for the + * predefined name. + * + ******************************************************************************/ + +void +ApCheckForPredefinedObject ( + ACPI_PARSE_OBJECT *Op, + char *Name) +{ + UINT32 Index; + + + /* + * Check for a real predefined name -- not a resource descriptor name + * or a predefined scope name + */ + Index = ApCheckForPredefinedName (Op, Name); + + switch (Index) + { + case ACPI_NOT_RESERVED_NAME: /* No underscore or _Txx or _xxx name not matched */ + case ACPI_PREDEFINED_NAME: /* Resource Name or reserved scope name */ + case ACPI_COMPILER_RESERVED_NAME: /* A _Txx that was not emitted by compiler */ + + /* Nothing to do */ + return; + + case ACPI_EVENT_RESERVED_NAME: /* _Lxx/_Exx/_Wxx/_Qxx methods */ + + /* + * These names must be control methods, by definition in ACPI spec. + * Also because they are defined to return no value. None of them + * require any arguments. + */ + AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op, + "with zero arguments"); + return; + + default: /* A standard predefined ACPI name */ + + /* + * If this predefined name requires input arguments, then + * it must be implemented as a control method + */ + if (PredefinedNames[Index].Info.ParamCount > 0) + { + AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op, + "with arguments"); + return; + } + + /* + * If no return value is expected from this predefined name, then + * it follows that it must be implemented as a control method + * (with zero args, because the args > 0 case was handled above) + * Examples are: _DIS, _INI, _IRC, _OFF, _ON, _PSx + */ + if (!PredefinedNames[Index].Info.ExpectedBtypes) + { + AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op, + "with zero arguments"); + return; + } + + /* Typecheck the actual object, it is the next argument */ + + ApCheckObjectType (Op->Asl.Child->Asl.Next, + PredefinedNames[Index].Info.ExpectedBtypes); + return; + } +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckForPredefinedName + * + * PARAMETERS: Op - A parse node + * Name - NameSeg to check + * + * RETURN: None + * + * DESCRIPTION: Check a NameSeg against the reserved list. + * + ******************************************************************************/ + +UINT32 +ApCheckForPredefinedName ( + ACPI_PARSE_OBJECT *Op, + char *Name) +{ + UINT32 i; + + + if (Name[0] == 0) + { + AcpiOsPrintf ("Found a null name, external = %s\n", + Op->Asl.ExternalName); + } + + /* All reserved names are prefixed with a single underscore */ + + if (Name[0] != '_') + { + return (ACPI_NOT_RESERVED_NAME); + } + + /* Check for a standard predefined method name */ + + for (i = 0; PredefinedNames[i].Info.Name[0]; i++) + { + if (ACPI_COMPARE_NAME (Name, PredefinedNames[i].Info.Name)) + { + /* Return index into predefined array */ + return (i); + } + } + + /* Check for resource names and predefined scope names */ + + for (i = 0; ResourceNames[i].Info.Name[0]; i++) + { + if (ACPI_COMPARE_NAME (Name, ResourceNames[i].Info.Name)) + { + return (ACPI_PREDEFINED_NAME); + } + } + + for (i = 0; ScopeNames[i].Info.Name[0]; i++) + { + if (ACPI_COMPARE_NAME (Name, ScopeNames[i].Info.Name)) + { + return (ACPI_PREDEFINED_NAME); + } + } + + /* Check for _Lxx/_Exx/_Wxx/_Qxx/_T_x. Warning if unknown predefined name */ + + return (ApCheckForSpecialName (Op, Name)); +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckForSpecialName + * + * PARAMETERS: Op - A parse node + * Name - NameSeg to check + * + * RETURN: None + * + * DESCRIPTION: Check for the "special" predefined names - + * _Lxx, _Exx, _Qxx, _Wxx, and _T_x + * + ******************************************************************************/ + +static UINT32 +ApCheckForSpecialName ( + ACPI_PARSE_OBJECT *Op, + char *Name) +{ + + /* + * Check for the "special" predefined names. We already know that the + * first character is an underscore. + * GPE: _Lxx + * GPE: _Exx + * GPE: _Wxx + * EC: _Qxx + */ + if ((Name[1] == 'L') || + (Name[1] == 'E') || + (Name[1] == 'W') || + (Name[1] == 'Q')) + { + /* The next two characters must be hex digits */ + + if ((isxdigit ((int) Name[2])) && + (isxdigit ((int) Name[3]))) + { + return (ACPI_EVENT_RESERVED_NAME); + } + } + + /* Check for the names reserved for the compiler itself: _T_x */ + + else if ((Op->Asl.ExternalName[1] == 'T') && + (Op->Asl.ExternalName[2] == '_')) + { + /* Ignore if actually emitted by the compiler */ + + if (Op->Asl.CompileFlags & NODE_COMPILER_EMITTED) + { + return (ACPI_NOT_RESERVED_NAME); + } + + /* + * Was not actually emitted by the compiler. This is a special case, + * however. If the ASL code being compiled was the result of a + * dissasembly, it may possibly contain valid compiler-emitted names + * of the form "_T_x". We don't want to issue an error or even a + * warning and force the user to manually change the names. So, we + * will issue a remark instead. + */ + AslError (ASL_REMARK, ASL_MSG_COMPILER_RESERVED, Op, Op->Asl.ExternalName); + return (ACPI_COMPILER_RESERVED_NAME); + } + + /* + * The name didn't match any of the known predefined names. Flag it as a + * warning, since the entire namespace starting with an underscore is + * reserved by the ACPI spec. + */ + AslError (ASL_WARNING, ASL_MSG_UNKNOWN_RESERVED_NAME, Op, + Op->Asl.ExternalName); + + return (ACPI_NOT_RESERVED_NAME); +} + + +/******************************************************************************* + * + * FUNCTION: ApCheckObjectType + * + * PARAMETERS: Op - Current parse node + * ExpectedBtypes - Bitmap of expected return type(s) + * + * RETURN: None + * + * DESCRIPTION: Check if the object type is one of the types that is expected + * by the predefined name. Only a limited number of object types + * can be returned by the predefined names. + * + ******************************************************************************/ + +static void +ApCheckObjectType ( + ACPI_PARSE_OBJECT *Op, + UINT32 ExpectedBtypes) +{ + UINT32 ReturnBtype; + + + switch (Op->Asl.ParseOpcode) + { + case PARSEOP_ZERO: + case PARSEOP_ONE: + case PARSEOP_ONES: + case PARSEOP_INTEGER: + ReturnBtype = ACPI_RTYPE_INTEGER; + break; + + case PARSEOP_BUFFER: + ReturnBtype = ACPI_RTYPE_BUFFER; + break; + + case PARSEOP_STRING_LITERAL: + ReturnBtype = ACPI_RTYPE_STRING; + break; + + case PARSEOP_PACKAGE: + case PARSEOP_VAR_PACKAGE: + ReturnBtype = ACPI_RTYPE_PACKAGE; + break; + + default: + /* Not one of the supported object types */ + + goto TypeErrorExit; + } + + /* Exit if the object is one of the expected types */ + + if (ReturnBtype & ExpectedBtypes) + { + return; + } + + +TypeErrorExit: + + /* Format the expected types and emit an error message */ + + ApGetExpectedTypes (StringBuffer, ExpectedBtypes); + + sprintf (MsgBuffer, "found %s, requires %s", + UtGetOpName (Op->Asl.ParseOpcode), StringBuffer); + + AslError (ASL_ERROR, ASL_MSG_RESERVED_OPERAND_TYPE, Op, + MsgBuffer); +} + + +/******************************************************************************* + * + * FUNCTION: ApDisplayReservedNames + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Dump information about the ACPI predefined names and predefined + * resource descriptor names. + * + ******************************************************************************/ + +void +ApDisplayReservedNames ( + void) +{ + const ACPI_PREDEFINED_INFO *ThisName; + char TypeBuffer[48]; /* Room for 5 types */ + UINT32 Count; + + + /* + * Predefined names/methods + */ + printf ("\nPredefined Name Information\n\n"); + + Count = 0; + ThisName = PredefinedNames; + while (ThisName->Info.Name[0]) + { + printf ("%4.4s Requires %u arguments, ", + ThisName->Info.Name, ThisName->Info.ParamCount & 0x0F); + + if (ThisName->Info.ExpectedBtypes) + { + ApGetExpectedTypes (TypeBuffer, ThisName->Info.ExpectedBtypes); + printf ("Must return: %s\n", TypeBuffer); + } + else + { + printf ("No return value\n"); + } + + /* + * Skip next entry in the table if this name returns a Package + * (next entry contains the package info) + */ + if (ThisName->Info.ExpectedBtypes & ACPI_RTYPE_PACKAGE) + { + ThisName++; + } + + Count++; + ThisName++; + } + + printf ("%u Predefined Names are recognized\n", Count); + + /* + * Resource Descriptor names + */ + printf ("\nResource Descriptor Predefined Names\n\n"); + + Count = 0; + ThisName = ResourceNames; + while (ThisName->Info.Name[0]) + { + printf ("%4.4s Resource Descriptor\n", ThisName->Info.Name); + Count++; + ThisName++; + } + + printf ("%u Resource Descriptor Names are recognized\n", Count); + + /* + * Predefined scope names + */ + printf ("\nPredefined Scope Names\n\n"); + + ThisName = ScopeNames; + while (ThisName->Info.Name[0]) + { + printf ("%4.4s Scope\n", ThisName->Info.Name); + ThisName++; + } +} + + +/******************************************************************************* + * + * FUNCTION: ApGetExpectedTypes + * + * PARAMETERS: Buffer - Where the formatted string is returned + * ExpectedBTypes - Bitfield of expected data types + * + * RETURN: None, formatted string + * + * DESCRIPTION: Format the expected object types into a printable string. + * + ******************************************************************************/ + +static void +ApGetExpectedTypes ( + char *Buffer, + UINT32 ExpectedBtypes) +{ + UINT32 ThisRtype; + UINT32 i; + UINT32 j; + + + j = 1; + Buffer[0] = 0; + ThisRtype = ACPI_RTYPE_INTEGER; + + for (i = 0; i < ACPI_NUM_RTYPES; i++) + { + /* If one of the expected types, concatenate the name of this type */ + + if (ExpectedBtypes & ThisRtype) + { + ACPI_STRCAT (Buffer, &AcpiRtypeNames[i][j]); + j = 0; /* Use name separator from now on */ + } + ThisRtype <<= 1; /* Next Rtype */ + } +} |
