diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/parser/psxface.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/parser/psxface.c | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/parser/psxface.c b/sys/contrib/dev/acpica/components/parser/psxface.c new file mode 100644 index 0000000..2cfd066 --- /dev/null +++ b/sys/contrib/dev/acpica/components/parser/psxface.c @@ -0,0 +1,442 @@ +/****************************************************************************** + * + * Module Name: psxface - Parser external interfaces + * + *****************************************************************************/ + +/* + * 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 __PSXFACE_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acparser.h> +#include <contrib/dev/acpica/include/acdispat.h> +#include <contrib/dev/acpica/include/acinterp.h> +#include <contrib/dev/acpica/include/actables.h> + + +#define _COMPONENT ACPI_PARSER + ACPI_MODULE_NAME ("psxface") + +/* Local Prototypes */ + +static void +AcpiPsStartTrace ( + ACPI_EVALUATE_INFO *Info); + +static void +AcpiPsStopTrace ( + ACPI_EVALUATE_INFO *Info); + +static void +AcpiPsUpdateParameterList ( + ACPI_EVALUATE_INFO *Info, + UINT16 Action); + + +/******************************************************************************* + * + * FUNCTION: AcpiDebugTrace + * + * PARAMETERS: MethodName - Valid ACPI name string + * DebugLevel - Optional level mask. 0 to use default + * DebugLayer - Optional layer mask. 0 to use default + * Flags - bit 1: one shot(1) or persistent(0) + * + * RETURN: Status + * + * DESCRIPTION: External interface to enable debug tracing during control + * method execution + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDebugTrace ( + char *Name, + UINT32 DebugLevel, + UINT32 DebugLayer, + UINT32 Flags) +{ + ACPI_STATUS Status; + + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + /* TBDs: Validate name, allow full path or just nameseg */ + + AcpiGbl_TraceMethodName = *ACPI_CAST_PTR (UINT32, Name); + AcpiGbl_TraceFlags = Flags; + + if (DebugLevel) + { + AcpiGbl_TraceDbgLevel = DebugLevel; + } + if (DebugLayer) + { + AcpiGbl_TraceDbgLayer = DebugLayer; + } + + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsStartTrace + * + * PARAMETERS: Info - Method info struct + * + * RETURN: None + * + * DESCRIPTION: Start control method execution trace + * + ******************************************************************************/ + +static void +AcpiPsStartTrace ( + ACPI_EVALUATE_INFO *Info) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_ENTRY (); + + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return; + } + + if ((!AcpiGbl_TraceMethodName) || + (AcpiGbl_TraceMethodName != Info->ResolvedNode->Name.Integer)) + { + goto Exit; + } + + AcpiGbl_OriginalDbgLevel = AcpiDbgLevel; + AcpiGbl_OriginalDbgLayer = AcpiDbgLayer; + + AcpiDbgLevel = 0x00FFFFFF; + AcpiDbgLayer = ACPI_UINT32_MAX; + + if (AcpiGbl_TraceDbgLevel) + { + AcpiDbgLevel = AcpiGbl_TraceDbgLevel; + } + if (AcpiGbl_TraceDbgLayer) + { + AcpiDbgLayer = AcpiGbl_TraceDbgLayer; + } + + +Exit: + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsStopTrace + * + * PARAMETERS: Info - Method info struct + * + * RETURN: None + * + * DESCRIPTION: Stop control method execution trace + * + ******************************************************************************/ + +static void +AcpiPsStopTrace ( + ACPI_EVALUATE_INFO *Info) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_ENTRY (); + + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return; + } + + if ((!AcpiGbl_TraceMethodName) || + (AcpiGbl_TraceMethodName != Info->ResolvedNode->Name.Integer)) + { + goto Exit; + } + + /* Disable further tracing if type is one-shot */ + + if (AcpiGbl_TraceFlags & 1) + { + AcpiGbl_TraceMethodName = 0; + AcpiGbl_TraceDbgLevel = 0; + AcpiGbl_TraceDbgLayer = 0; + } + + AcpiDbgLevel = AcpiGbl_OriginalDbgLevel; + AcpiDbgLayer = AcpiGbl_OriginalDbgLayer; + +Exit: + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsExecuteMethod + * + * PARAMETERS: Info - Method info block, contains: + * Node - Method Node to execute + * ObjDesc - Method object + * Parameters - List of parameters to pass to the method, + * terminated by NULL. Params itself may be + * NULL if no parameters are being passed. + * ReturnObject - Where to put method's return value (if + * any). If NULL, no value is returned. + * ParameterType - Type of Parameter list + * ReturnObject - Where to put method's return value (if + * any). If NULL, no value is returned. + * PassNumber - Parse or execute pass + * + * RETURN: Status + * + * DESCRIPTION: Execute a control method + * + ******************************************************************************/ + +ACPI_STATUS +AcpiPsExecuteMethod ( + ACPI_EVALUATE_INFO *Info) +{ + ACPI_STATUS Status; + ACPI_PARSE_OBJECT *Op; + ACPI_WALK_STATE *WalkState; + + + ACPI_FUNCTION_TRACE (PsExecuteMethod); + + + /* Quick validation of DSDT header */ + + AcpiTbCheckDsdtHeader (); + + /* Validate the Info and method Node */ + + if (!Info || !Info->ResolvedNode) + { + return_ACPI_STATUS (AE_NULL_ENTRY); + } + + /* Init for new method, wait on concurrency semaphore */ + + Status = AcpiDsBeginMethodExecution (Info->ResolvedNode, Info->ObjDesc, NULL); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * The caller "owns" the parameters, so give each one an extra reference + */ + AcpiPsUpdateParameterList (Info, REF_INCREMENT); + + /* Begin tracing if requested */ + + AcpiPsStartTrace (Info); + + /* + * Execute the method. Performs parse simultaneously + */ + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, + "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n", + Info->ResolvedNode->Name.Ascii, Info->ResolvedNode, Info->ObjDesc)); + + /* Create and init a Root Node */ + + Op = AcpiPsCreateScopeOp (); + if (!Op) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + + /* Create and initialize a new walk state */ + + Info->PassNumber = ACPI_IMODE_EXECUTE; + WalkState = AcpiDsCreateWalkState ( + Info->ObjDesc->Method.OwnerId, NULL, NULL, NULL); + if (!WalkState) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + + Status = AcpiDsInitAmlWalk (WalkState, Op, Info->ResolvedNode, + Info->ObjDesc->Method.AmlStart, + Info->ObjDesc->Method.AmlLength, Info, Info->PassNumber); + if (ACPI_FAILURE (Status)) + { + AcpiDsDeleteWalkState (WalkState); + goto Cleanup; + } + + if (Info->ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL) + { + WalkState->ParseFlags |= ACPI_PARSE_MODULE_LEVEL; + } + + /* Invoke an internal method if necessary */ + + if (Info->ObjDesc->Method.InfoFlags & ACPI_METHOD_INTERNAL_ONLY) + { + Status = Info->ObjDesc->Method.Dispatch.Implementation (WalkState); + Info->ReturnObject = WalkState->ReturnDesc; + + /* Cleanup states */ + + AcpiDsScopeStackClear (WalkState); + AcpiPsCleanupScope (&WalkState->ParserState); + AcpiDsTerminateControlMethod (WalkState->MethodDesc, WalkState); + AcpiDsDeleteWalkState (WalkState); + goto Cleanup; + } + + /* + * Start method evaluation with an implicit return of zero. This is done + * for Windows compatibility. + */ + if (AcpiGbl_EnableInterpreterSlack) + { + WalkState->ImplicitReturnObj = + AcpiUtCreateIntegerObject ((UINT64) 0); + if (!WalkState->ImplicitReturnObj) + { + Status = AE_NO_MEMORY; + AcpiDsDeleteWalkState (WalkState); + goto Cleanup; + } + } + + /* Parse the AML */ + + Status = AcpiPsParseAml (WalkState); + + /* WalkState was deleted by ParseAml */ + +Cleanup: + AcpiPsDeleteParseTree (Op); + + /* End optional tracing */ + + AcpiPsStopTrace (Info); + + /* Take away the extra reference that we gave the parameters above */ + + AcpiPsUpdateParameterList (Info, REF_DECREMENT); + + /* Exit now if error above */ + + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * If the method has returned an object, signal this to the caller with + * a control exception code + */ + if (Info->ReturnObject) + { + ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", + Info->ReturnObject)); + ACPI_DUMP_STACK_ENTRY (Info->ReturnObject); + + Status = AE_CTRL_RETURN_VALUE; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsUpdateParameterList + * + * PARAMETERS: Info - See ACPI_EVALUATE_INFO + * (Used: ParameterType and Parameters) + * Action - Add or Remove reference + * + * RETURN: Status + * + * DESCRIPTION: Update reference count on all method parameter objects + * + ******************************************************************************/ + +static void +AcpiPsUpdateParameterList ( + ACPI_EVALUATE_INFO *Info, + UINT16 Action) +{ + UINT32 i; + + + if (Info->Parameters) + { + /* Update reference count for each parameter */ + + for (i = 0; Info->Parameters[i]; i++) + { + /* Ignore errors, just do them all */ + + (void) AcpiUtUpdateObjectReference (Info->Parameters[i], Action); + } + } +} + + |
