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Diffstat (limited to 'sys/contrib/dev/acpica/components/utilities/utmisc.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/utilities/utmisc.c | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/utilities/utmisc.c b/sys/contrib/dev/acpica/components/utilities/utmisc.c new file mode 100644 index 0000000..6ff6b2a --- /dev/null +++ b/sys/contrib/dev/acpica/components/utilities/utmisc.c @@ -0,0 +1,457 @@ +/******************************************************************************* + * + * Module Name: utmisc - common utility procedures + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2013, 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 __UTMISC_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acnamesp.h> + + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utmisc") + + +/******************************************************************************* + * + * FUNCTION: AcpiUtIsPciRootBridge + * + * PARAMETERS: Id - The HID/CID in string format + * + * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. + * + ******************************************************************************/ + +BOOLEAN +AcpiUtIsPciRootBridge ( + char *Id) +{ + + /* + * Check if this is a PCI root bridge. + * ACPI 3.0+: check for a PCI Express root also. + */ + if (!(ACPI_STRCMP (Id, + PCI_ROOT_HID_STRING)) || + + !(ACPI_STRCMP (Id, + PCI_EXPRESS_ROOT_HID_STRING))) + { + return (TRUE); + } + + return (FALSE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtIsAmlTable + * + * PARAMETERS: Table - An ACPI table + * + * RETURN: TRUE if table contains executable AML; FALSE otherwise + * + * DESCRIPTION: Check ACPI Signature for a table that contains AML code. + * Currently, these are DSDT,SSDT,PSDT. All other table types are + * data tables that do not contain AML code. + * + ******************************************************************************/ + +BOOLEAN +AcpiUtIsAmlTable ( + ACPI_TABLE_HEADER *Table) +{ + + /* These are the only tables that contain executable AML */ + + if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT) || + ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_PSDT) || + ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_SSDT)) + { + return (TRUE); + } + + return (FALSE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtDwordByteSwap + * + * PARAMETERS: Value - Value to be converted + * + * RETURN: UINT32 integer with bytes swapped + * + * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes) + * + ******************************************************************************/ + +UINT32 +AcpiUtDwordByteSwap ( + UINT32 Value) +{ + union + { + UINT32 Value; + UINT8 Bytes[4]; + } Out; + union + { + UINT32 Value; + UINT8 Bytes[4]; + } In; + + + ACPI_FUNCTION_ENTRY (); + + + In.Value = Value; + + Out.Bytes[0] = In.Bytes[3]; + Out.Bytes[1] = In.Bytes[2]; + Out.Bytes[2] = In.Bytes[1]; + Out.Bytes[3] = In.Bytes[0]; + + return (Out.Value); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtSetIntegerWidth + * + * PARAMETERS: Revision From DSDT header + * + * RETURN: None + * + * DESCRIPTION: Set the global integer bit width based upon the revision + * of the DSDT. For Revision 1 and 0, Integers are 32 bits. + * For Revision 2 and above, Integers are 64 bits. Yes, this + * makes a difference. + * + ******************************************************************************/ + +void +AcpiUtSetIntegerWidth ( + UINT8 Revision) +{ + + if (Revision < 2) + { + /* 32-bit case */ + + AcpiGbl_IntegerBitWidth = 32; + AcpiGbl_IntegerNybbleWidth = 8; + AcpiGbl_IntegerByteWidth = 4; + } + else + { + /* 64-bit case (ACPI 2.0+) */ + + AcpiGbl_IntegerBitWidth = 64; + AcpiGbl_IntegerNybbleWidth = 16; + AcpiGbl_IntegerByteWidth = 8; + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreateUpdateStateAndPush + * + * PARAMETERS: Object - Object to be added to the new state + * Action - Increment/Decrement + * StateList - List the state will be added to + * + * RETURN: Status + * + * DESCRIPTION: Create a new state and push it + * + ******************************************************************************/ + +ACPI_STATUS +AcpiUtCreateUpdateStateAndPush ( + ACPI_OPERAND_OBJECT *Object, + UINT16 Action, + ACPI_GENERIC_STATE **StateList) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_ENTRY (); + + + /* Ignore null objects; these are expected */ + + if (!Object) + { + return (AE_OK); + } + + State = AcpiUtCreateUpdateState (Object, Action); + if (!State) + { + return (AE_NO_MEMORY); + } + + AcpiUtPushGenericState (StateList, State); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtWalkPackageTree + * + * PARAMETERS: SourceObject - The package to walk + * TargetObject - Target object (if package is being copied) + * WalkCallback - Called once for each package element + * Context - Passed to the callback function + * + * RETURN: Status + * + * DESCRIPTION: Walk through a package + * + ******************************************************************************/ + +ACPI_STATUS +AcpiUtWalkPackageTree ( + ACPI_OPERAND_OBJECT *SourceObject, + void *TargetObject, + ACPI_PKG_CALLBACK WalkCallback, + void *Context) +{ + ACPI_STATUS Status = AE_OK; + ACPI_GENERIC_STATE *StateList = NULL; + ACPI_GENERIC_STATE *State; + UINT32 ThisIndex; + ACPI_OPERAND_OBJECT *ThisSourceObj; + + + ACPI_FUNCTION_TRACE (UtWalkPackageTree); + + + State = AcpiUtCreatePkgState (SourceObject, TargetObject, 0); + if (!State) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + while (State) + { + /* Get one element of the package */ + + ThisIndex = State->Pkg.Index; + ThisSourceObj = (ACPI_OPERAND_OBJECT *) + State->Pkg.SourceObject->Package.Elements[ThisIndex]; + + /* + * Check for: + * 1) An uninitialized package element. It is completely + * legal to declare a package and leave it uninitialized + * 2) Not an internal object - can be a namespace node instead + * 3) Any type other than a package. Packages are handled in else + * case below. + */ + if ((!ThisSourceObj) || + (ACPI_GET_DESCRIPTOR_TYPE (ThisSourceObj) != ACPI_DESC_TYPE_OPERAND) || + (ThisSourceObj->Common.Type != ACPI_TYPE_PACKAGE)) + { + Status = WalkCallback (ACPI_COPY_TYPE_SIMPLE, ThisSourceObj, + State, Context); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + State->Pkg.Index++; + while (State->Pkg.Index >= State->Pkg.SourceObject->Package.Count) + { + /* + * We've handled all of the objects at this level, This means + * that we have just completed a package. That package may + * have contained one or more packages itself. + * + * Delete this state and pop the previous state (package). + */ + AcpiUtDeleteGenericState (State); + State = AcpiUtPopGenericState (&StateList); + + /* Finished when there are no more states */ + + if (!State) + { + /* + * We have handled all of the objects in the top level + * package just add the length of the package objects + * and exit + */ + return_ACPI_STATUS (AE_OK); + } + + /* + * Go back up a level and move the index past the just + * completed package object. + */ + State->Pkg.Index++; + } + } + else + { + /* This is a subobject of type package */ + + Status = WalkCallback (ACPI_COPY_TYPE_PACKAGE, ThisSourceObj, + State, Context); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * Push the current state and create a new one + * The callback above returned a new target package object. + */ + AcpiUtPushGenericState (&StateList, State); + State = AcpiUtCreatePkgState (ThisSourceObj, + State->Pkg.ThisTargetObj, 0); + if (!State) + { + /* Free any stacked Update State objects */ + + while (StateList) + { + State = AcpiUtPopGenericState (&StateList); + AcpiUtDeleteGenericState (State); + } + return_ACPI_STATUS (AE_NO_MEMORY); + } + } + } + + /* We should never get here */ + + return_ACPI_STATUS (AE_AML_INTERNAL); +} + + +#ifdef ACPI_DEBUG_OUTPUT +/******************************************************************************* + * + * FUNCTION: AcpiUtDisplayInitPathname + * + * PARAMETERS: Type - Object type of the node + * ObjHandle - Handle whose pathname will be displayed + * Path - Additional path string to be appended. + * (NULL if no extra path) + * + * RETURN: ACPI_STATUS + * + * DESCRIPTION: Display full pathname of an object, DEBUG ONLY + * + ******************************************************************************/ + +void +AcpiUtDisplayInitPathname ( + UINT8 Type, + ACPI_NAMESPACE_NODE *ObjHandle, + char *Path) +{ + ACPI_STATUS Status; + ACPI_BUFFER Buffer; + + + ACPI_FUNCTION_ENTRY (); + + + /* Only print the path if the appropriate debug level is enabled */ + + if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES)) + { + return; + } + + /* Get the full pathname to the node */ + + Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; + Status = AcpiNsHandleToPathname (ObjHandle, &Buffer); + if (ACPI_FAILURE (Status)) + { + return; + } + + /* Print what we're doing */ + + switch (Type) + { + case ACPI_TYPE_METHOD: + + AcpiOsPrintf ("Executing "); + break; + + default: + + AcpiOsPrintf ("Initializing "); + break; + } + + /* Print the object type and pathname */ + + AcpiOsPrintf ("%-12s %s", + AcpiUtGetTypeName (Type), (char *) Buffer.Pointer); + + /* Extra path is used to append names like _STA, _INI, etc. */ + + if (Path) + { + AcpiOsPrintf (".%s", Path); + } + AcpiOsPrintf ("\n"); + + ACPI_FREE (Buffer.Pointer); +} +#endif |
