| /****************************************************************************** |
| * |
| * Module Name: nsrepair2 - Repair for objects returned by specific |
| * predefined methods |
| * |
| *****************************************************************************/ |
| |
| /* |
| * 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 "acnamesp.h" |
| |
| #define _COMPONENT ACPI_NAMESPACE |
| ACPI_MODULE_NAME ("nsrepair2") |
| |
| |
| /* |
| * Information structure and handler for ACPI predefined names that can |
| * be repaired on a per-name basis. |
| */ |
| typedef |
| ACPI_STATUS (*ACPI_REPAIR_FUNCTION) ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| typedef struct acpi_repair_info |
| { |
| char Name[ACPI_NAME_SIZE]; |
| ACPI_REPAIR_FUNCTION RepairFunction; |
| |
| } ACPI_REPAIR_INFO; |
| |
| |
| /* Local prototypes */ |
| |
| static const ACPI_REPAIR_INFO * |
| AcpiNsMatchComplexRepair ( |
| ACPI_NAMESPACE_NODE *Node); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_ALR ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_CID ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_CST ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_FDE ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_HID ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_PRT ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_PSS ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsRepair_TSS ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| |
| static ACPI_STATUS |
| AcpiNsCheckSortedList ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT *ReturnObject, |
| UINT32 StartIndex, |
| UINT32 ExpectedCount, |
| UINT32 SortIndex, |
| UINT8 SortDirection, |
| char *SortKeyName); |
| |
| /* Values for SortDirection above */ |
| |
| #define ACPI_SORT_ASCENDING 0 |
| #define ACPI_SORT_DESCENDING 1 |
| |
| static void |
| AcpiNsRemoveElement ( |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| UINT32 Index); |
| |
| static void |
| AcpiNsSortList ( |
| ACPI_OPERAND_OBJECT **Elements, |
| UINT32 Count, |
| UINT32 Index, |
| UINT8 SortDirection); |
| |
| |
| /* |
| * This table contains the names of the predefined methods for which we can |
| * perform more complex repairs. |
| * |
| * As necessary: |
| * |
| * _ALR: Sort the list ascending by AmbientIlluminance |
| * _CID: Strings: uppercase all, remove any leading asterisk |
| * _CST: Sort the list ascending by C state type |
| * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs |
| * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs |
| * _HID: Strings: uppercase all, remove any leading asterisk |
| * _PRT: Fix reversed SourceName and SourceIndex |
| * _PSS: Sort the list descending by Power |
| * _TSS: Sort the list descending by Power |
| * |
| * Names that must be packages, but cannot be sorted: |
| * |
| * _BCL: Values are tied to the Package index where they appear, and cannot |
| * be moved or sorted. These index values are used for _BQC and _BCM. |
| * However, we can fix the case where a buffer is returned, by converting |
| * it to a Package of integers. |
| */ |
| static const ACPI_REPAIR_INFO AcpiNsRepairableNames[] = |
| { |
| {"_ALR", AcpiNsRepair_ALR}, |
| {"_CID", AcpiNsRepair_CID}, |
| {"_CST", AcpiNsRepair_CST}, |
| {"_FDE", AcpiNsRepair_FDE}, |
| {"_GTM", AcpiNsRepair_FDE}, /* _GTM has same repair as _FDE */ |
| {"_HID", AcpiNsRepair_HID}, |
| {"_PRT", AcpiNsRepair_PRT}, |
| {"_PSS", AcpiNsRepair_PSS}, |
| {"_TSS", AcpiNsRepair_TSS}, |
| {{0,0,0,0}, NULL} /* Table terminator */ |
| }; |
| |
| |
| #define ACPI_FDE_FIELD_COUNT 5 |
| #define ACPI_FDE_BYTE_BUFFER_SIZE 5 |
| #define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * sizeof (UINT32)) |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsComplexRepairs |
| * |
| * PARAMETERS: Info - Method execution information block |
| * Node - Namespace node for the method/object |
| * ValidateStatus - Original status of earlier validation |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if repair was successful. If name is not |
| * matched, ValidateStatus is returned. |
| * |
| * DESCRIPTION: Attempt to repair/convert a return object of a type that was |
| * not expected. |
| * |
| *****************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiNsComplexRepairs ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_NAMESPACE_NODE *Node, |
| ACPI_STATUS ValidateStatus, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| const ACPI_REPAIR_INFO *Predefined; |
| ACPI_STATUS Status; |
| |
| |
| /* Check if this name is in the list of repairable names */ |
| |
| Predefined = AcpiNsMatchComplexRepair (Node); |
| if (!Predefined) |
| { |
| return (ValidateStatus); |
| } |
| |
| Status = Predefined->RepairFunction (Info, ReturnObjectPtr); |
| return (Status); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsMatchComplexRepair |
| * |
| * PARAMETERS: Node - Namespace node for the method/object |
| * |
| * RETURN: Pointer to entry in repair table. NULL indicates not found. |
| * |
| * DESCRIPTION: Check an object name against the repairable object list. |
| * |
| *****************************************************************************/ |
| |
| static const ACPI_REPAIR_INFO * |
| AcpiNsMatchComplexRepair ( |
| ACPI_NAMESPACE_NODE *Node) |
| { |
| const ACPI_REPAIR_INFO *ThisName; |
| |
| |
| /* Search info table for a repairable predefined method/object name */ |
| |
| ThisName = AcpiNsRepairableNames; |
| while (ThisName->RepairFunction) |
| { |
| if (ACPI_COMPARE_NAME (Node->Name.Ascii, ThisName->Name)) |
| { |
| return (ThisName); |
| } |
| |
| ThisName++; |
| } |
| |
| return (NULL); /* Not found */ |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_ALR |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list |
| * ascending by the ambient illuminance values. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_ALR ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_STATUS Status; |
| |
| |
| Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 2, 1, |
| ACPI_SORT_ASCENDING, "AmbientIlluminance"); |
| |
| return (Status); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_FDE |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return |
| * value is a Buffer of 5 DWORDs. This function repairs a common |
| * problem where the return value is a Buffer of BYTEs, not |
| * DWORDs. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_FDE ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT *BufferObject; |
| UINT8 *ByteBuffer; |
| UINT32 *DwordBuffer; |
| UINT32 i; |
| |
| |
| ACPI_FUNCTION_NAME (NsRepair_FDE); |
| |
| |
| switch (ReturnObject->Common.Type) |
| { |
| case ACPI_TYPE_BUFFER: |
| |
| /* This is the expected type. Length should be (at least) 5 DWORDs */ |
| |
| if (ReturnObject->Buffer.Length >= ACPI_FDE_DWORD_BUFFER_SIZE) |
| { |
| return (AE_OK); |
| } |
| |
| /* We can only repair if we have exactly 5 BYTEs */ |
| |
| if (ReturnObject->Buffer.Length != ACPI_FDE_BYTE_BUFFER_SIZE) |
| { |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "Incorrect return buffer length %u, expected %u", |
| ReturnObject->Buffer.Length, ACPI_FDE_DWORD_BUFFER_SIZE)); |
| |
| return (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* Create the new (larger) buffer object */ |
| |
| BufferObject = AcpiUtCreateBufferObject ( |
| ACPI_FDE_DWORD_BUFFER_SIZE); |
| if (!BufferObject) |
| { |
| return (AE_NO_MEMORY); |
| } |
| |
| /* Expand each byte to a DWORD */ |
| |
| ByteBuffer = ReturnObject->Buffer.Pointer; |
| DwordBuffer = ACPI_CAST_PTR (UINT32, |
| BufferObject->Buffer.Pointer); |
| |
| for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) |
| { |
| *DwordBuffer = (UINT32) *ByteBuffer; |
| DwordBuffer++; |
| ByteBuffer++; |
| } |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| "%s Expanded Byte Buffer to expected DWord Buffer\n", |
| Info->FullPathname)); |
| break; |
| |
| default: |
| |
| return (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* Delete the original return object, return the new buffer object */ |
| |
| AcpiUtRemoveReference (ReturnObject); |
| *ReturnObjectPtr = BufferObject; |
| |
| Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_CID |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _CID object. If a string, ensure that all |
| * letters are uppercase and that there is no leading asterisk. |
| * If a Package, ensure same for all string elements. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_CID ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_STATUS Status; |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT **ElementPtr; |
| ACPI_OPERAND_OBJECT *OriginalElement; |
| UINT16 OriginalRefCount; |
| UINT32 i; |
| |
| |
| /* Check for _CID as a simple string */ |
| |
| if (ReturnObject->Common.Type == ACPI_TYPE_STRING) |
| { |
| Status = AcpiNsRepair_HID (Info, ReturnObjectPtr); |
| return (Status); |
| } |
| |
| /* Exit if not a Package */ |
| |
| if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) |
| { |
| return (AE_OK); |
| } |
| |
| /* Examine each element of the _CID package */ |
| |
| ElementPtr = ReturnObject->Package.Elements; |
| for (i = 0; i < ReturnObject->Package.Count; i++) |
| { |
| OriginalElement = *ElementPtr; |
| OriginalRefCount = OriginalElement->Common.ReferenceCount; |
| |
| Status = AcpiNsRepair_HID (Info, ElementPtr); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* Take care with reference counts */ |
| |
| if (OriginalElement != *ElementPtr) |
| { |
| /* Element was replaced */ |
| |
| (*ElementPtr)->Common.ReferenceCount = |
| OriginalRefCount; |
| |
| AcpiUtRemoveReference (OriginalElement); |
| } |
| |
| ElementPtr++; |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_CST |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _CST object: |
| * 1. Sort the list ascending by C state type |
| * 2. Ensure type cannot be zero |
| * 3. A subpackage count of zero means _CST is meaningless |
| * 4. Count must match the number of C state subpackages |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_CST ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT **OuterElements; |
| UINT32 OuterElementCount; |
| ACPI_OPERAND_OBJECT *ObjDesc; |
| ACPI_STATUS Status; |
| BOOLEAN Removing; |
| UINT32 i; |
| |
| |
| ACPI_FUNCTION_NAME (NsRepair_CST); |
| |
| |
| /* |
| * Check if the C-state type values are proportional. |
| */ |
| OuterElementCount = ReturnObject->Package.Count - 1; |
| i = 0; |
| while (i < OuterElementCount) |
| { |
| OuterElements = &ReturnObject->Package.Elements[i + 1]; |
| Removing = FALSE; |
| |
| if ((*OuterElements)->Package.Count == 0) |
| { |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "SubPackage[%u] - removing entry due to zero count", i)); |
| Removing = TRUE; |
| goto RemoveElement; |
| } |
| |
| ObjDesc = (*OuterElements)->Package.Elements[1]; /* Index1 = Type */ |
| if ((UINT32) ObjDesc->Integer.Value == 0) |
| { |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "SubPackage[%u] - removing entry due to invalid Type(0)", i)); |
| Removing = TRUE; |
| } |
| |
| RemoveElement: |
| if (Removing) |
| { |
| AcpiNsRemoveElement (ReturnObject, i + 1); |
| OuterElementCount--; |
| } |
| else |
| { |
| i++; |
| } |
| } |
| |
| /* Update top-level package count, Type "Integer" checked elsewhere */ |
| |
| ObjDesc = ReturnObject->Package.Elements[0]; |
| ObjDesc->Integer.Value = OuterElementCount; |
| |
| /* |
| * Entries (subpackages) in the _CST Package must be sorted by the |
| * C-state type, in ascending order. |
| */ |
| Status = AcpiNsCheckSortedList (Info, ReturnObject, 1, 4, 1, |
| ACPI_SORT_ASCENDING, "C-State Type"); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_HID |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _HID object. If a string, ensure that all |
| * letters are uppercase and that there is no leading asterisk. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_HID ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT *NewString; |
| char *Source; |
| char *Dest; |
| |
| |
| ACPI_FUNCTION_NAME (NsRepair_HID); |
| |
| |
| /* We only care about string _HID objects (not integers) */ |
| |
| if (ReturnObject->Common.Type != ACPI_TYPE_STRING) |
| { |
| return (AE_OK); |
| } |
| |
| if (ReturnObject->String.Length == 0) |
| { |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "Invalid zero-length _HID or _CID string")); |
| |
| /* Return AE_OK anyway, let driver handle it */ |
| |
| Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| return (AE_OK); |
| } |
| |
| /* It is simplest to always create a new string object */ |
| |
| NewString = AcpiUtCreateStringObject (ReturnObject->String.Length); |
| if (!NewString) |
| { |
| return (AE_NO_MEMORY); |
| } |
| |
| /* |
| * Remove a leading asterisk if present. For some unknown reason, there |
| * are many machines in the field that contains IDs like this. |
| * |
| * Examples: "*PNP0C03", "*ACPI0003" |
| */ |
| Source = ReturnObject->String.Pointer; |
| if (*Source == '*') |
| { |
| Source++; |
| NewString->String.Length--; |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| "%s: Removed invalid leading asterisk\n", Info->FullPathname)); |
| } |
| |
| /* |
| * Copy and uppercase the string. From the ACPI 5.0 specification: |
| * |
| * A valid PNP ID must be of the form "AAA####" where A is an uppercase |
| * letter and # is a hex digit. A valid ACPI ID must be of the form |
| * "NNNN####" where N is an uppercase letter or decimal digit, and |
| * # is a hex digit. |
| */ |
| for (Dest = NewString->String.Pointer; *Source; Dest++, Source++) |
| { |
| *Dest = (char) toupper ((int) *Source); |
| } |
| |
| AcpiUtRemoveReference (ReturnObject); |
| *ReturnObjectPtr = NewString; |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_PRT |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _PRT object. If necessary, fix reversed |
| * SourceName and SourceIndex field, a common BIOS bug. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_PRT ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *PackageObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT **TopObjectList; |
| ACPI_OPERAND_OBJECT **SubObjectList; |
| ACPI_OPERAND_OBJECT *ObjDesc; |
| ACPI_OPERAND_OBJECT *SubPackage; |
| UINT32 ElementCount; |
| UINT32 Index; |
| |
| |
| /* Each element in the _PRT package is a subpackage */ |
| |
| TopObjectList = PackageObject->Package.Elements; |
| ElementCount = PackageObject->Package.Count; |
| |
| /* Examine each subpackage */ |
| |
| for (Index = 0; Index < ElementCount; Index++, TopObjectList++) |
| { |
| SubPackage = *TopObjectList; |
| SubObjectList = SubPackage->Package.Elements; |
| |
| /* Check for minimum required element count */ |
| |
| if (SubPackage->Package.Count < 4) |
| { |
| continue; |
| } |
| |
| /* |
| * If the BIOS has erroneously reversed the _PRT SourceName (index 2) |
| * and the SourceIndex (index 3), fix it. _PRT is important enough to |
| * workaround this BIOS error. This also provides compatibility with |
| * other ACPI implementations. |
| */ |
| ObjDesc = SubObjectList[3]; |
| if (!ObjDesc || (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)) |
| { |
| SubObjectList[3] = SubObjectList[2]; |
| SubObjectList[2] = ObjDesc; |
| Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "PRT[%X]: Fixed reversed SourceName and SourceIndex", |
| Index)); |
| } |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_PSS |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list |
| * by the CPU frequencies. Check that the power dissipation values |
| * are all proportional to CPU frequency (i.e., sorting by |
| * frequency should be the same as sorting by power.) |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_PSS ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_OPERAND_OBJECT **OuterElements; |
| UINT32 OuterElementCount; |
| ACPI_OPERAND_OBJECT **Elements; |
| ACPI_OPERAND_OBJECT *ObjDesc; |
| UINT32 PreviousValue; |
| ACPI_STATUS Status; |
| UINT32 i; |
| |
| |
| /* |
| * Entries (subpackages) in the _PSS Package must be sorted by power |
| * dissipation, in descending order. If it appears that the list is |
| * incorrectly sorted, sort it. We sort by CpuFrequency, since this |
| * should be proportional to the power. |
| */ |
| Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 6, 0, |
| ACPI_SORT_DESCENDING, "CpuFrequency"); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| |
| /* |
| * We now know the list is correctly sorted by CPU frequency. Check if |
| * the power dissipation values are proportional. |
| */ |
| PreviousValue = ACPI_UINT32_MAX; |
| OuterElements = ReturnObject->Package.Elements; |
| OuterElementCount = ReturnObject->Package.Count; |
| |
| for (i = 0; i < OuterElementCount; i++) |
| { |
| Elements = (*OuterElements)->Package.Elements; |
| ObjDesc = Elements[1]; /* Index1 = PowerDissipation */ |
| |
| if ((UINT32) ObjDesc->Integer.Value > PreviousValue) |
| { |
| ACPI_WARN_PREDEFINED ((AE_INFO, |
| Info->FullPathname, Info->NodeFlags, |
| "SubPackage[%u,%u] - suspicious power dissipation values", |
| i-1, i)); |
| } |
| |
| PreviousValue = (UINT32) ObjDesc->Integer.Value; |
| OuterElements++; |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRepair_TSS |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObjectPtr - Pointer to the object returned from the |
| * evaluation of a method or object |
| * |
| * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| * |
| * DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list |
| * descending by the power dissipation values. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsRepair_TSS ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| { |
| ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| ACPI_STATUS Status; |
| ACPI_NAMESPACE_NODE *Node; |
| |
| |
| /* |
| * We can only sort the _TSS return package if there is no _PSS in the |
| * same scope. This is because if _PSS is present, the ACPI specification |
| * dictates that the _TSS Power Dissipation field is to be ignored, and |
| * therefore some BIOSs leave garbage values in the _TSS Power field(s). |
| * In this case, it is best to just return the _TSS package as-is. |
| * (May, 2011) |
| */ |
| Status = AcpiNsGetNode (Info->Node, "^_PSS", |
| ACPI_NS_NO_UPSEARCH, &Node); |
| if (ACPI_SUCCESS (Status)) |
| { |
| return (AE_OK); |
| } |
| |
| Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 5, 1, |
| ACPI_SORT_DESCENDING, "PowerDissipation"); |
| |
| return (Status); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsCheckSortedList |
| * |
| * PARAMETERS: Info - Method execution information block |
| * ReturnObject - Pointer to the top-level returned object |
| * StartIndex - Index of the first subpackage |
| * ExpectedCount - Minimum length of each subpackage |
| * SortIndex - Subpackage entry to sort on |
| * SortDirection - Ascending or descending |
| * SortKeyName - Name of the SortIndex field |
| * |
| * RETURN: Status. AE_OK if the list is valid and is sorted correctly or |
| * has been repaired by sorting the list. |
| * |
| * DESCRIPTION: Check if the package list is valid and sorted correctly by the |
| * SortIndex. If not, then sort the list. |
| * |
| *****************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsCheckSortedList ( |
| ACPI_EVALUATE_INFO *Info, |
| ACPI_OPERAND_OBJECT *ReturnObject, |
| UINT32 StartIndex, |
| UINT32 ExpectedCount, |
| UINT32 SortIndex, |
| UINT8 SortDirection, |
| char *SortKeyName) |
| { |
| UINT32 OuterElementCount; |
| ACPI_OPERAND_OBJECT **OuterElements; |
| ACPI_OPERAND_OBJECT **Elements; |
| ACPI_OPERAND_OBJECT *ObjDesc; |
| UINT32 i; |
| UINT32 PreviousValue; |
| |
| |
| ACPI_FUNCTION_NAME (NsCheckSortedList); |
| |
| |
| /* The top-level object must be a package */ |
| |
| if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) |
| { |
| return (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* |
| * NOTE: assumes list of subpackages contains no NULL elements. |
| * Any NULL elements should have been removed by earlier call |
| * to AcpiNsRemoveNullElements. |
| */ |
| OuterElementCount = ReturnObject->Package.Count; |
| if (!OuterElementCount || StartIndex >= OuterElementCount) |
| { |
| return (AE_AML_PACKAGE_LIMIT); |
| } |
| |
| OuterElements = &ReturnObject->Package.Elements[StartIndex]; |
| OuterElementCount -= StartIndex; |
| |
| PreviousValue = 0; |
| if (SortDirection == ACPI_SORT_DESCENDING) |
| { |
| PreviousValue = ACPI_UINT32_MAX; |
| } |
| |
| /* Examine each subpackage */ |
| |
| for (i = 0; i < OuterElementCount; i++) |
| { |
| /* Each element of the top-level package must also be a package */ |
| |
| if ((*OuterElements)->Common.Type != ACPI_TYPE_PACKAGE) |
| { |
| return (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* Each subpackage must have the minimum length */ |
| |
| if ((*OuterElements)->Package.Count < ExpectedCount) |
| { |
| return (AE_AML_PACKAGE_LIMIT); |
| } |
| |
| Elements = (*OuterElements)->Package.Elements; |
| ObjDesc = Elements[SortIndex]; |
| |
| if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER) |
| { |
| return (AE_AML_OPERAND_TYPE); |
| } |
| |
| /* |
| * The list must be sorted in the specified order. If we detect a |
| * discrepancy, sort the entire list. |
| */ |
| if (((SortDirection == ACPI_SORT_ASCENDING) && |
| (ObjDesc->Integer.Value < PreviousValue)) || |
| ((SortDirection == ACPI_SORT_DESCENDING) && |
| (ObjDesc->Integer.Value > PreviousValue))) |
| { |
| AcpiNsSortList (&ReturnObject->Package.Elements[StartIndex], |
| OuterElementCount, SortIndex, SortDirection); |
| |
| Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| "%s: Repaired unsorted list - now sorted by %s\n", |
| Info->FullPathname, SortKeyName)); |
| return (AE_OK); |
| } |
| |
| PreviousValue = (UINT32) ObjDesc->Integer.Value; |
| OuterElements++; |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsSortList |
| * |
| * PARAMETERS: Elements - Package object element list |
| * Count - Element count for above |
| * Index - Sort by which package element |
| * SortDirection - Ascending or Descending sort |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Sort the objects that are in a package element list. |
| * |
| * NOTE: Assumes that all NULL elements have been removed from the package, |
| * and that all elements have been verified to be of type Integer. |
| * |
| *****************************************************************************/ |
| |
| static void |
| AcpiNsSortList ( |
| ACPI_OPERAND_OBJECT **Elements, |
| UINT32 Count, |
| UINT32 Index, |
| UINT8 SortDirection) |
| { |
| ACPI_OPERAND_OBJECT *ObjDesc1; |
| ACPI_OPERAND_OBJECT *ObjDesc2; |
| ACPI_OPERAND_OBJECT *TempObj; |
| UINT32 i; |
| UINT32 j; |
| |
| |
| /* Simple bubble sort */ |
| |
| for (i = 1; i < Count; i++) |
| { |
| for (j = (Count - 1); j >= i; j--) |
| { |
| ObjDesc1 = Elements[j-1]->Package.Elements[Index]; |
| ObjDesc2 = Elements[j]->Package.Elements[Index]; |
| |
| if (((SortDirection == ACPI_SORT_ASCENDING) && |
| (ObjDesc1->Integer.Value > ObjDesc2->Integer.Value)) || |
| |
| ((SortDirection == ACPI_SORT_DESCENDING) && |
| (ObjDesc1->Integer.Value < ObjDesc2->Integer.Value))) |
| { |
| TempObj = Elements[j-1]; |
| Elements[j-1] = Elements[j]; |
| Elements[j] = TempObj; |
| } |
| } |
| } |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AcpiNsRemoveElement |
| * |
| * PARAMETERS: ObjDesc - Package object element list |
| * Index - Index of element to remove |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Remove the requested element of a package and delete it. |
| * |
| *****************************************************************************/ |
| |
| static void |
| AcpiNsRemoveElement ( |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| UINT32 Index) |
| { |
| ACPI_OPERAND_OBJECT **Source; |
| ACPI_OPERAND_OBJECT **Dest; |
| UINT32 Count; |
| UINT32 NewCount; |
| UINT32 i; |
| |
| |
| ACPI_FUNCTION_NAME (NsRemoveElement); |
| |
| |
| Count = ObjDesc->Package.Count; |
| NewCount = Count - 1; |
| |
| Source = ObjDesc->Package.Elements; |
| Dest = Source; |
| |
| /* Examine all elements of the package object, remove matched index */ |
| |
| for (i = 0; i < Count; i++) |
| { |
| if (i == Index) |
| { |
| AcpiUtRemoveReference (*Source); /* Remove one ref for being in pkg */ |
| AcpiUtRemoveReference (*Source); |
| } |
| else |
| { |
| *Dest = *Source; |
| Dest++; |
| } |
| |
| Source++; |
| } |
| |
| /* NULL terminate list and update the package count */ |
| |
| *Dest = NULL; |
| ObjDesc->Package.Count = NewCount; |
| } |
