diff options
Diffstat (limited to 'source/components/utilities/utxface.c')
| -rw-r--r-- | source/components/utilities/utxface.c | 1488 |
1 files changed, 744 insertions, 744 deletions
diff --git a/source/components/utilities/utxface.c b/source/components/utilities/utxface.c index efc7dd00b..7f2752c38 100644 --- a/source/components/utilities/utxface.c +++ b/source/components/utilities/utxface.c @@ -1,744 +1,744 @@ -/******************************************************************************
- *
- * Module Name: utxface - External interfaces, miscellaneous utility functions
- *
- *****************************************************************************/
-
-/******************************************************************************
- *
- * 1. Copyright Notice
- *
- * Some or all of this work - Copyright (c) 1999 - 2015, 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 EXPORT_ACPI_INTERFACES
-
-#include "acpi.h"
-#include "accommon.h"
-#include "acdebug.h"
-
-#define _COMPONENT ACPI_UTILITIES
- ACPI_MODULE_NAME ("utxface")
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiTerminate
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiTerminate (
- void)
-{
- ACPI_STATUS Status;
-
-
- ACPI_FUNCTION_TRACE (AcpiTerminate);
-
-
- /* Just exit if subsystem is already shutdown */
-
- if (AcpiGbl_Shutdown)
- {
- ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated"));
- return_ACPI_STATUS (AE_OK);
- }
-
- /* Subsystem appears active, go ahead and shut it down */
-
- AcpiGbl_Shutdown = TRUE;
- AcpiGbl_StartupFlags = 0;
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
-
- /* Terminate the AML Debugger if present */
-
- ACPI_DEBUGGER_EXEC (AcpiGbl_DbTerminateThreads = TRUE);
-
- /* Shutdown and free all resources */
-
- AcpiUtSubsystemShutdown ();
-
- /* Free the mutex objects */
-
- AcpiUtMutexTerminate ();
-
-
-#ifdef ACPI_DEBUGGER
-
- /* Shut down the debugger */
-
- AcpiDbTerminate ();
-#endif
-
- /* Now we can shutdown the OS-dependent layer */
-
- Status = AcpiOsTerminate ();
- return_ACPI_STATUS (Status);
-}
-
-ACPI_EXPORT_SYMBOL_INIT (AcpiTerminate)
-
-
-#ifndef ACPI_ASL_COMPILER
-/*******************************************************************************
- *
- * FUNCTION: AcpiSubsystemStatus
- *
- * PARAMETERS: None
- *
- * RETURN: Status of the ACPI subsystem
- *
- * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
- * before making any other calls, to ensure the subsystem
- * initialized successfully.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiSubsystemStatus (
- void)
-{
-
- if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK)
- {
- return (AE_OK);
- }
- else
- {
- return (AE_ERROR);
- }
-}
-
-ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus)
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiGetSystemInfo
- *
- * PARAMETERS: OutBuffer - A buffer to receive the resources for the
- * device
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: This function is called to get information about the current
- * state of the ACPI subsystem. It will return system information
- * in the OutBuffer.
- *
- * If the function fails an appropriate status will be returned
- * and the value of OutBuffer is undefined.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiGetSystemInfo (
- ACPI_BUFFER *OutBuffer)
-{
- ACPI_SYSTEM_INFO *InfoPtr;
- ACPI_STATUS Status;
-
-
- ACPI_FUNCTION_TRACE (AcpiGetSystemInfo);
-
-
- /* Parameter validation */
-
- Status = AcpiUtValidateBuffer (OutBuffer);
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO));
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
-
- /*
- * Populate the return buffer
- */
- InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer;
-
- InfoPtr->AcpiCaVersion = ACPI_CA_VERSION;
-
- /* System flags (ACPI capabilities) */
-
- InfoPtr->Flags = ACPI_SYS_MODE_ACPI;
-
- /* Timer resolution - 24 or 32 bits */
-
- if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER)
- {
- InfoPtr->TimerResolution = 24;
- }
- else
- {
- InfoPtr->TimerResolution = 32;
- }
-
- /* Clear the reserved fields */
-
- InfoPtr->Reserved1 = 0;
- InfoPtr->Reserved2 = 0;
-
- /* Current debug levels */
-
- InfoPtr->DebugLayer = AcpiDbgLayer;
- InfoPtr->DebugLevel = AcpiDbgLevel;
-
- return_ACPI_STATUS (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo)
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiGetStatistics
- *
- * PARAMETERS: Stats - Where the statistics are returned
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: Get the contents of the various system counters
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiGetStatistics (
- ACPI_STATISTICS *Stats)
-{
- ACPI_FUNCTION_TRACE (AcpiGetStatistics);
-
-
- /* Parameter validation */
-
- if (!Stats)
- {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
- }
-
- /* Various interrupt-based event counters */
-
- Stats->SciCount = AcpiSciCount;
- Stats->GpeCount = AcpiGpeCount;
-
- ACPI_MEMCPY (Stats->FixedEventCount, AcpiFixedEventCount,
- sizeof (AcpiFixedEventCount));
-
-
- /* Other counters */
-
- Stats->MethodCount = AcpiMethodCount;
-
- return_ACPI_STATUS (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiGetStatistics)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiInstallInitializationHandler
- *
- * PARAMETERS: Handler - Callback procedure
- * Function - Not (currently) used, see below
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install an initialization handler
- *
- * TBD: When a second function is added, must save the Function also.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiInstallInitializationHandler (
- ACPI_INIT_HANDLER Handler,
- UINT32 Function)
-{
-
- if (!Handler)
- {
- return (AE_BAD_PARAMETER);
- }
-
- if (AcpiGbl_InitHandler)
- {
- return (AE_ALREADY_EXISTS);
- }
-
- AcpiGbl_InitHandler = Handler;
- return (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiPurgeCachedObjects
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Empty all caches (delete the cached objects)
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiPurgeCachedObjects (
- void)
-{
- ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects);
-
-
- (void) AcpiOsPurgeCache (AcpiGbl_StateCache);
- (void) AcpiOsPurgeCache (AcpiGbl_OperandCache);
- (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache);
- (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache);
-
- return_ACPI_STATUS (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiInstallInterface
- *
- * PARAMETERS: InterfaceName - The interface to install
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install an _OSI interface to the global list
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiInstallInterface (
- ACPI_STRING InterfaceName)
-{
- ACPI_STATUS Status;
- ACPI_INTERFACE_INFO *InterfaceInfo;
-
-
- /* Parameter validation */
-
- if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0))
- {
- return (AE_BAD_PARAMETER);
- }
-
- Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- /* Check if the interface name is already in the global list */
-
- InterfaceInfo = AcpiUtGetInterface (InterfaceName);
- if (InterfaceInfo)
- {
- /*
- * The interface already exists in the list. This is OK if the
- * interface has been marked invalid -- just clear the bit.
- */
- if (InterfaceInfo->Flags & ACPI_OSI_INVALID)
- {
- InterfaceInfo->Flags &= ~ACPI_OSI_INVALID;
- Status = AE_OK;
- }
- else
- {
- Status = AE_ALREADY_EXISTS;
- }
- }
- else
- {
- /* New interface name, install into the global list */
-
- Status = AcpiUtInstallInterface (InterfaceName);
- }
-
- AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
- return (Status);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiInstallInterface)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiRemoveInterface
- *
- * PARAMETERS: InterfaceName - The interface to remove
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove an _OSI interface from the global list
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiRemoveInterface (
- ACPI_STRING InterfaceName)
-{
- ACPI_STATUS Status;
-
-
- /* Parameter validation */
-
- if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0))
- {
- return (AE_BAD_PARAMETER);
- }
-
- Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiUtRemoveInterface (InterfaceName);
-
- AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
- return (Status);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiRemoveInterface)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiInstallInterfaceHandler
- *
- * PARAMETERS: Handler - The _OSI interface handler to install
- * NULL means "remove existing handler"
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for the predefined _OSI ACPI method.
- * invoked during execution of the internal implementation of
- * _OSI. A NULL handler simply removes any existing handler.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiInstallInterfaceHandler (
- ACPI_INTERFACE_HANDLER Handler)
-{
- ACPI_STATUS Status;
-
-
- Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- if (Handler && AcpiGbl_InterfaceHandler)
- {
- Status = AE_ALREADY_EXISTS;
- }
- else
- {
- AcpiGbl_InterfaceHandler = Handler;
- }
-
- AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
- return (Status);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiInstallInterfaceHandler)
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiUpdateInterfaces
- *
- * PARAMETERS: Action - Actions to be performed during the
- * update
- *
- * RETURN: Status
- *
- * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
- * string or/and feature group strings.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-AcpiUpdateInterfaces (
- UINT8 Action)
-{
- ACPI_STATUS Status;
-
-
- Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiUtUpdateInterfaces (Action);
-
- AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
- return (Status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: AcpiCheckAddressRange
- *
- * PARAMETERS: SpaceId - Address space ID
- * Address - Start address
- * Length - Length
- * Warn - TRUE if warning on overlap desired
- *
- * RETURN: Count of the number of conflicts detected.
- *
- * DESCRIPTION: Check if the input address range overlaps any of the
- * ASL operation region address ranges.
- *
- ****************************************************************************/
-
-UINT32
-AcpiCheckAddressRange (
- ACPI_ADR_SPACE_TYPE SpaceId,
- ACPI_PHYSICAL_ADDRESS Address,
- ACPI_SIZE Length,
- BOOLEAN Warn)
-{
- UINT32 Overlaps;
- ACPI_STATUS Status;
-
-
- Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (Status))
- {
- return (0);
- }
-
- Overlaps = AcpiUtCheckAddressRange (SpaceId, Address,
- (UINT32) Length, Warn);
-
- (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
- return (Overlaps);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiCheckAddressRange)
-
-#endif /* !ACPI_ASL_COMPILER */
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiDecodePldBuffer
- *
- * PARAMETERS: InBuffer - Buffer returned by _PLD method
- * Length - Length of the InBuffer
- * ReturnBuffer - Where the decode buffer is returned
- *
- * RETURN: Status and the decoded _PLD buffer. User must deallocate
- * the buffer via ACPI_FREE.
- *
- * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
- * a local struct that is much more useful to an ACPI driver.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiDecodePldBuffer (
- UINT8 *InBuffer,
- ACPI_SIZE Length,
- ACPI_PLD_INFO **ReturnBuffer)
-{
- ACPI_PLD_INFO *PldInfo;
- UINT32 *Buffer = ACPI_CAST_PTR (UINT32, InBuffer);
- UINT32 Dword;
-
-
- /* Parameter validation */
-
- if (!InBuffer || !ReturnBuffer || (Length < 16))
- {
- return (AE_BAD_PARAMETER);
- }
-
- PldInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PLD_INFO));
- if (!PldInfo)
- {
- return (AE_NO_MEMORY);
- }
-
- /* First 32-bit DWord */
-
- ACPI_MOVE_32_TO_32 (&Dword, &Buffer[0]);
- PldInfo->Revision = ACPI_PLD_GET_REVISION (&Dword);
- PldInfo->IgnoreColor = ACPI_PLD_GET_IGNORE_COLOR (&Dword);
- PldInfo->Red = ACPI_PLD_GET_RED (&Dword);
- PldInfo->Green = ACPI_PLD_GET_GREEN (&Dword);
- PldInfo->Blue = ACPI_PLD_GET_BLUE (&Dword);
-
- /* Second 32-bit DWord */
-
- ACPI_MOVE_32_TO_32 (&Dword, &Buffer[1]);
- PldInfo->Width = ACPI_PLD_GET_WIDTH (&Dword);
- PldInfo->Height = ACPI_PLD_GET_HEIGHT(&Dword);
-
- /* Third 32-bit DWord */
-
- ACPI_MOVE_32_TO_32 (&Dword, &Buffer[2]);
- PldInfo->UserVisible = ACPI_PLD_GET_USER_VISIBLE (&Dword);
- PldInfo->Dock = ACPI_PLD_GET_DOCK (&Dword);
- PldInfo->Lid = ACPI_PLD_GET_LID (&Dword);
- PldInfo->Panel = ACPI_PLD_GET_PANEL (&Dword);
- PldInfo->VerticalPosition = ACPI_PLD_GET_VERTICAL (&Dword);
- PldInfo->HorizontalPosition = ACPI_PLD_GET_HORIZONTAL (&Dword);
- PldInfo->Shape = ACPI_PLD_GET_SHAPE (&Dword);
- PldInfo->GroupOrientation = ACPI_PLD_GET_ORIENTATION (&Dword);
- PldInfo->GroupToken = ACPI_PLD_GET_TOKEN (&Dword);
- PldInfo->GroupPosition = ACPI_PLD_GET_POSITION (&Dword);
- PldInfo->Bay = ACPI_PLD_GET_BAY (&Dword);
-
- /* Fourth 32-bit DWord */
-
- ACPI_MOVE_32_TO_32 (&Dword, &Buffer[3]);
- PldInfo->Ejectable = ACPI_PLD_GET_EJECTABLE (&Dword);
- PldInfo->OspmEjectRequired = ACPI_PLD_GET_OSPM_EJECT (&Dword);
- PldInfo->CabinetNumber = ACPI_PLD_GET_CABINET (&Dword);
- PldInfo->CardCageNumber = ACPI_PLD_GET_CARD_CAGE (&Dword);
- PldInfo->Reference = ACPI_PLD_GET_REFERENCE (&Dword);
- PldInfo->Rotation = ACPI_PLD_GET_ROTATION (&Dword);
- PldInfo->Order = ACPI_PLD_GET_ORDER (&Dword);
-
- if (Length >= ACPI_PLD_BUFFER_SIZE)
- {
- /* Fifth 32-bit DWord (Revision 2 of _PLD) */
-
- ACPI_MOVE_32_TO_32 (&Dword, &Buffer[4]);
- PldInfo->VerticalOffset = ACPI_PLD_GET_VERT_OFFSET (&Dword);
- PldInfo->HorizontalOffset = ACPI_PLD_GET_HORIZ_OFFSET (&Dword);
- }
-
- *ReturnBuffer = PldInfo;
- return (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL (AcpiDecodePldBuffer)
+/****************************************************************************** + * + * Module Name: utxface - External interfaces, miscellaneous utility functions + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2014, 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 EXPORT_ACPI_INTERFACES + +#include "acpi.h" +#include "accommon.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utxface") + + +/******************************************************************************* + * + * FUNCTION: AcpiTerminate + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiTerminate ( + void) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiTerminate); + + + /* Just exit if subsystem is already shutdown */ + + if (AcpiGbl_Shutdown) + { + ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated")); + return_ACPI_STATUS (AE_OK); + } + + /* Subsystem appears active, go ahead and shut it down */ + + AcpiGbl_Shutdown = TRUE; + AcpiGbl_StartupFlags = 0; + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); + + /* Terminate the AML Debugger if present */ + + ACPI_DEBUGGER_EXEC (AcpiGbl_DbTerminateThreads = TRUE); + + /* Shutdown and free all resources */ + + AcpiUtSubsystemShutdown (); + + /* Free the mutex objects */ + + AcpiUtMutexTerminate (); + + +#ifdef ACPI_DEBUGGER + + /* Shut down the debugger */ + + AcpiDbTerminate (); +#endif + + /* Now we can shutdown the OS-dependent layer */ + + Status = AcpiOsTerminate (); + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL_INIT (AcpiTerminate) + + +#ifndef ACPI_ASL_COMPILER +/******************************************************************************* + * + * FUNCTION: AcpiSubsystemStatus + * + * PARAMETERS: None + * + * RETURN: Status of the ACPI subsystem + * + * DESCRIPTION: Other drivers that use the ACPI subsystem should call this + * before making any other calls, to ensure the subsystem + * initialized successfully. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiSubsystemStatus ( + void) +{ + + if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK) + { + return (AE_OK); + } + else + { + return (AE_ERROR); + } +} + +ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus) + + +/******************************************************************************* + * + * FUNCTION: AcpiGetSystemInfo + * + * PARAMETERS: OutBuffer - A buffer to receive the resources for the + * device + * + * RETURN: Status - the status of the call + * + * DESCRIPTION: This function is called to get information about the current + * state of the ACPI subsystem. It will return system information + * in the OutBuffer. + * + * If the function fails an appropriate status will be returned + * and the value of OutBuffer is undefined. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetSystemInfo ( + ACPI_BUFFER *OutBuffer) +{ + ACPI_SYSTEM_INFO *InfoPtr; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiGetSystemInfo); + + + /* Parameter validation */ + + Status = AcpiUtValidateBuffer (OutBuffer); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Validate/Allocate/Clear caller buffer */ + + Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO)); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * Populate the return buffer + */ + InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer; + + InfoPtr->AcpiCaVersion = ACPI_CA_VERSION; + + /* System flags (ACPI capabilities) */ + + InfoPtr->Flags = ACPI_SYS_MODE_ACPI; + + /* Timer resolution - 24 or 32 bits */ + + if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) + { + InfoPtr->TimerResolution = 24; + } + else + { + InfoPtr->TimerResolution = 32; + } + + /* Clear the reserved fields */ + + InfoPtr->Reserved1 = 0; + InfoPtr->Reserved2 = 0; + + /* Current debug levels */ + + InfoPtr->DebugLayer = AcpiDbgLayer; + InfoPtr->DebugLevel = AcpiDbgLevel; + + return_ACPI_STATUS (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo) + + +/******************************************************************************* + * + * FUNCTION: AcpiGetStatistics + * + * PARAMETERS: Stats - Where the statistics are returned + * + * RETURN: Status - the status of the call + * + * DESCRIPTION: Get the contents of the various system counters + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetStatistics ( + ACPI_STATISTICS *Stats) +{ + ACPI_FUNCTION_TRACE (AcpiGetStatistics); + + + /* Parameter validation */ + + if (!Stats) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Various interrupt-based event counters */ + + Stats->SciCount = AcpiSciCount; + Stats->GpeCount = AcpiGpeCount; + + ACPI_MEMCPY (Stats->FixedEventCount, AcpiFixedEventCount, + sizeof (AcpiFixedEventCount)); + + + /* Other counters */ + + Stats->MethodCount = AcpiMethodCount; + + return_ACPI_STATUS (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiGetStatistics) + + +/***************************************************************************** + * + * FUNCTION: AcpiInstallInitializationHandler + * + * PARAMETERS: Handler - Callback procedure + * Function - Not (currently) used, see below + * + * RETURN: Status + * + * DESCRIPTION: Install an initialization handler + * + * TBD: When a second function is added, must save the Function also. + * + ****************************************************************************/ + +ACPI_STATUS +AcpiInstallInitializationHandler ( + ACPI_INIT_HANDLER Handler, + UINT32 Function) +{ + + if (!Handler) + { + return (AE_BAD_PARAMETER); + } + + if (AcpiGbl_InitHandler) + { + return (AE_ALREADY_EXISTS); + } + + AcpiGbl_InitHandler = Handler; + return (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler) + + +/***************************************************************************** + * + * FUNCTION: AcpiPurgeCachedObjects + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Empty all caches (delete the cached objects) + * + ****************************************************************************/ + +ACPI_STATUS +AcpiPurgeCachedObjects ( + void) +{ + ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects); + + + (void) AcpiOsPurgeCache (AcpiGbl_StateCache); + (void) AcpiOsPurgeCache (AcpiGbl_OperandCache); + (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache); + (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache); + + return_ACPI_STATUS (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects) + + +/***************************************************************************** + * + * FUNCTION: AcpiInstallInterface + * + * PARAMETERS: InterfaceName - The interface to install + * + * RETURN: Status + * + * DESCRIPTION: Install an _OSI interface to the global list + * + ****************************************************************************/ + +ACPI_STATUS +AcpiInstallInterface ( + ACPI_STRING InterfaceName) +{ + ACPI_STATUS Status; + ACPI_INTERFACE_INFO *InterfaceInfo; + + + /* Parameter validation */ + + if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0)) + { + return (AE_BAD_PARAMETER); + } + + Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + /* Check if the interface name is already in the global list */ + + InterfaceInfo = AcpiUtGetInterface (InterfaceName); + if (InterfaceInfo) + { + /* + * The interface already exists in the list. This is OK if the + * interface has been marked invalid -- just clear the bit. + */ + if (InterfaceInfo->Flags & ACPI_OSI_INVALID) + { + InterfaceInfo->Flags &= ~ACPI_OSI_INVALID; + Status = AE_OK; + } + else + { + Status = AE_ALREADY_EXISTS; + } + } + else + { + /* New interface name, install into the global list */ + + Status = AcpiUtInstallInterface (InterfaceName); + } + + AcpiOsReleaseMutex (AcpiGbl_OsiMutex); + return (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiInstallInterface) + + +/***************************************************************************** + * + * FUNCTION: AcpiRemoveInterface + * + * PARAMETERS: InterfaceName - The interface to remove + * + * RETURN: Status + * + * DESCRIPTION: Remove an _OSI interface from the global list + * + ****************************************************************************/ + +ACPI_STATUS +AcpiRemoveInterface ( + ACPI_STRING InterfaceName) +{ + ACPI_STATUS Status; + + + /* Parameter validation */ + + if (!InterfaceName || (ACPI_STRLEN (InterfaceName) == 0)) + { + return (AE_BAD_PARAMETER); + } + + Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + Status = AcpiUtRemoveInterface (InterfaceName); + + AcpiOsReleaseMutex (AcpiGbl_OsiMutex); + return (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiRemoveInterface) + + +/***************************************************************************** + * + * FUNCTION: AcpiInstallInterfaceHandler + * + * PARAMETERS: Handler - The _OSI interface handler to install + * NULL means "remove existing handler" + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for the predefined _OSI ACPI method. + * invoked during execution of the internal implementation of + * _OSI. A NULL handler simply removes any existing handler. + * + ****************************************************************************/ + +ACPI_STATUS +AcpiInstallInterfaceHandler ( + ACPI_INTERFACE_HANDLER Handler) +{ + ACPI_STATUS Status; + + + Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + if (Handler && AcpiGbl_InterfaceHandler) + { + Status = AE_ALREADY_EXISTS; + } + else + { + AcpiGbl_InterfaceHandler = Handler; + } + + AcpiOsReleaseMutex (AcpiGbl_OsiMutex); + return (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiInstallInterfaceHandler) + + +/***************************************************************************** + * + * FUNCTION: AcpiUpdateInterfaces + * + * PARAMETERS: Action - Actions to be performed during the + * update + * + * RETURN: Status + * + * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor + * string or/and feature group strings. + * + ****************************************************************************/ + +ACPI_STATUS +AcpiUpdateInterfaces ( + UINT8 Action) +{ + ACPI_STATUS Status; + + + Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + Status = AcpiUtUpdateInterfaces (Action); + + AcpiOsReleaseMutex (AcpiGbl_OsiMutex); + return (Status); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiCheckAddressRange + * + * PARAMETERS: SpaceId - Address space ID + * Address - Start address + * Length - Length + * Warn - TRUE if warning on overlap desired + * + * RETURN: Count of the number of conflicts detected. + * + * DESCRIPTION: Check if the input address range overlaps any of the + * ASL operation region address ranges. + * + ****************************************************************************/ + +UINT32 +AcpiCheckAddressRange ( + ACPI_ADR_SPACE_TYPE SpaceId, + ACPI_PHYSICAL_ADDRESS Address, + ACPI_SIZE Length, + BOOLEAN Warn) +{ + UINT32 Overlaps; + ACPI_STATUS Status; + + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return (0); + } + + Overlaps = AcpiUtCheckAddressRange (SpaceId, Address, + (UINT32) Length, Warn); + + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + return (Overlaps); +} + +ACPI_EXPORT_SYMBOL (AcpiCheckAddressRange) + +#endif /* !ACPI_ASL_COMPILER */ + + +/******************************************************************************* + * + * FUNCTION: AcpiDecodePldBuffer + * + * PARAMETERS: InBuffer - Buffer returned by _PLD method + * Length - Length of the InBuffer + * ReturnBuffer - Where the decode buffer is returned + * + * RETURN: Status and the decoded _PLD buffer. User must deallocate + * the buffer via ACPI_FREE. + * + * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into + * a local struct that is much more useful to an ACPI driver. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDecodePldBuffer ( + UINT8 *InBuffer, + ACPI_SIZE Length, + ACPI_PLD_INFO **ReturnBuffer) +{ + ACPI_PLD_INFO *PldInfo; + UINT32 *Buffer = ACPI_CAST_PTR (UINT32, InBuffer); + UINT32 Dword; + + + /* Parameter validation */ + + if (!InBuffer || !ReturnBuffer || (Length < 16)) + { + return (AE_BAD_PARAMETER); + } + + PldInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PLD_INFO)); + if (!PldInfo) + { + return (AE_NO_MEMORY); + } + + /* First 32-bit DWord */ + + ACPI_MOVE_32_TO_32 (&Dword, &Buffer[0]); + PldInfo->Revision = ACPI_PLD_GET_REVISION (&Dword); + PldInfo->IgnoreColor = ACPI_PLD_GET_IGNORE_COLOR (&Dword); + PldInfo->Red = ACPI_PLD_GET_RED (&Dword); + PldInfo->Green = ACPI_PLD_GET_GREEN (&Dword); + PldInfo->Blue = ACPI_PLD_GET_BLUE (&Dword); + + /* Second 32-bit DWord */ + + ACPI_MOVE_32_TO_32 (&Dword, &Buffer[1]); + PldInfo->Width = ACPI_PLD_GET_WIDTH (&Dword); + PldInfo->Height = ACPI_PLD_GET_HEIGHT(&Dword); + + /* Third 32-bit DWord */ + + ACPI_MOVE_32_TO_32 (&Dword, &Buffer[2]); + PldInfo->UserVisible = ACPI_PLD_GET_USER_VISIBLE (&Dword); + PldInfo->Dock = ACPI_PLD_GET_DOCK (&Dword); + PldInfo->Lid = ACPI_PLD_GET_LID (&Dword); + PldInfo->Panel = ACPI_PLD_GET_PANEL (&Dword); + PldInfo->VerticalPosition = ACPI_PLD_GET_VERTICAL (&Dword); + PldInfo->HorizontalPosition = ACPI_PLD_GET_HORIZONTAL (&Dword); + PldInfo->Shape = ACPI_PLD_GET_SHAPE (&Dword); + PldInfo->GroupOrientation = ACPI_PLD_GET_ORIENTATION (&Dword); + PldInfo->GroupToken = ACPI_PLD_GET_TOKEN (&Dword); + PldInfo->GroupPosition = ACPI_PLD_GET_POSITION (&Dword); + PldInfo->Bay = ACPI_PLD_GET_BAY (&Dword); + + /* Fourth 32-bit DWord */ + + ACPI_MOVE_32_TO_32 (&Dword, &Buffer[3]); + PldInfo->Ejectable = ACPI_PLD_GET_EJECTABLE (&Dword); + PldInfo->OspmEjectRequired = ACPI_PLD_GET_OSPM_EJECT (&Dword); + PldInfo->CabinetNumber = ACPI_PLD_GET_CABINET (&Dword); + PldInfo->CardCageNumber = ACPI_PLD_GET_CARD_CAGE (&Dword); + PldInfo->Reference = ACPI_PLD_GET_REFERENCE (&Dword); + PldInfo->Rotation = ACPI_PLD_GET_ROTATION (&Dword); + PldInfo->Order = ACPI_PLD_GET_ORDER (&Dword); + + if (Length >= ACPI_PLD_BUFFER_SIZE) + { + /* Fifth 32-bit DWord (Revision 2 of _PLD) */ + + ACPI_MOVE_32_TO_32 (&Dword, &Buffer[4]); + PldInfo->VerticalOffset = ACPI_PLD_GET_VERT_OFFSET (&Dword); + PldInfo->HorizontalOffset = ACPI_PLD_GET_HORIZ_OFFSET (&Dword); + } + + *ReturnBuffer = PldInfo; + return (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiDecodePldBuffer) |