diff options
Diffstat (limited to 'sys/contrib/dev/acpica/utstate.c')
| -rw-r--r-- | sys/contrib/dev/acpica/utstate.c | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/utstate.c b/sys/contrib/dev/acpica/utstate.c new file mode 100644 index 0000000..bd049ec --- /dev/null +++ b/sys/contrib/dev/acpica/utstate.c @@ -0,0 +1,457 @@ +/******************************************************************************* + * + * Module Name: utstate - state object support procedures + * $Revision: 1.2 $ + * + ******************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2005, 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 __UTSTATE_C__ + +#include <contrib/dev/acpica/acpi.h> + +#define _COMPONENT ACPI_UTILITIES + ACPI_MODULE_NAME ("utstate") + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreatePkgStateAndPush + * + * 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 +AcpiUtCreatePkgStateAndPush ( + void *InternalObject, + void *ExternalObject, + UINT16 Index, + ACPI_GENERIC_STATE **StateList) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_ENTRY (); + + + State = AcpiUtCreatePkgState (InternalObject, ExternalObject, Index); + if (!State) + { + return (AE_NO_MEMORY); + } + + AcpiUtPushGenericState (StateList, State); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtPushGenericState + * + * PARAMETERS: ListHead - Head of the state stack + * State - State object to push + * + * RETURN: None + * + * DESCRIPTION: Push a state object onto a state stack + * + ******************************************************************************/ + +void +AcpiUtPushGenericState ( + ACPI_GENERIC_STATE **ListHead, + ACPI_GENERIC_STATE *State) +{ + ACPI_FUNCTION_TRACE ("UtPushGenericState"); + + + /* Push the state object onto the front of the list (stack) */ + + State->Common.Next = *ListHead; + *ListHead = State; + + return_VOID; +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtPopGenericState + * + * PARAMETERS: ListHead - Head of the state stack + * + * RETURN: The popped state object + * + * DESCRIPTION: Pop a state object from a state stack + * + ******************************************************************************/ + +ACPI_GENERIC_STATE * +AcpiUtPopGenericState ( + ACPI_GENERIC_STATE **ListHead) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_TRACE ("UtPopGenericState"); + + + /* Remove the state object at the head of the list (stack) */ + + State = *ListHead; + if (State) + { + /* Update the list head */ + + *ListHead = State->Common.Next; + } + + return_PTR (State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreateGenericState + * + * PARAMETERS: None + * + * RETURN: The new state object. NULL on failure. + * + * DESCRIPTION: Create a generic state object. Attempt to obtain one from + * the global state cache; If none available, create a new one. + * + ******************************************************************************/ + +ACPI_GENERIC_STATE * +AcpiUtCreateGenericState ( + void) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_ENTRY (); + + + State = AcpiOsAcquireObject (AcpiGbl_StateCache); + if (State) + { + /* Initialize */ + State->Common.DataType = ACPI_DESC_TYPE_STATE; + } + + return (State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreateThreadState + * + * PARAMETERS: None + * + * RETURN: New Thread State. NULL on failure + * + * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used + * to track per-thread info during method execution + * + ******************************************************************************/ + +ACPI_THREAD_STATE * +AcpiUtCreateThreadState ( + void) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_TRACE ("UtCreateThreadState"); + + + /* Create the generic state object */ + + State = AcpiUtCreateGenericState (); + if (!State) + { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + State->Common.DataType = ACPI_DESC_TYPE_STATE_THREAD; + State->Thread.ThreadId = AcpiOsGetThreadId (); + + return_PTR ((ACPI_THREAD_STATE *) State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreateUpdateState + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create an "Update State" - a flavor of the generic state used + * to update reference counts and delete complex objects such + * as packages. + * + ******************************************************************************/ + +ACPI_GENERIC_STATE * +AcpiUtCreateUpdateState ( + ACPI_OPERAND_OBJECT *Object, + UINT16 Action) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_TRACE_PTR ("UtCreateUpdateState", Object); + + + /* Create the generic state object */ + + State = AcpiUtCreateGenericState (); + if (!State) + { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + State->Common.DataType = ACPI_DESC_TYPE_STATE_UPDATE; + State->Update.Object = Object; + State->Update.Value = Action; + + return_PTR (State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreatePkgState + * + * PARAMETERS: Object - Initial Object to be installed in the state + * Action - Update action to be performed + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Package State" + * + ******************************************************************************/ + +ACPI_GENERIC_STATE * +AcpiUtCreatePkgState ( + void *InternalObject, + void *ExternalObject, + UINT16 Index) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_TRACE_PTR ("UtCreatePkgState", InternalObject); + + + /* Create the generic state object */ + + State = AcpiUtCreateGenericState (); + if (!State) + { + return_PTR (NULL); + } + + /* Init fields specific to the update struct */ + + State->Common.DataType = ACPI_DESC_TYPE_STATE_PACKAGE; + State->Pkg.SourceObject = (ACPI_OPERAND_OBJECT *) InternalObject; + State->Pkg.DestObject = ExternalObject; + State->Pkg.Index = Index; + State->Pkg.NumPackages = 1; + + return_PTR (State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtCreateControlState + * + * PARAMETERS: None + * + * RETURN: New state object, null on failure + * + * DESCRIPTION: Create a "Control State" - a flavor of the generic state used + * to support nested IF/WHILE constructs in the AML. + * + ******************************************************************************/ + +ACPI_GENERIC_STATE * +AcpiUtCreateControlState ( + void) +{ + ACPI_GENERIC_STATE *State; + + + ACPI_FUNCTION_TRACE ("UtCreateControlState"); + + + /* Create the generic state object */ + + State = AcpiUtCreateGenericState (); + if (!State) + { + return_PTR (NULL); + } + + /* Init fields specific to the control struct */ + + State->Common.DataType = ACPI_DESC_TYPE_STATE_CONTROL; + State->Common.State = ACPI_CONTROL_CONDITIONAL_EXECUTING; + + return_PTR (State); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUtDeleteGenericState + * + * PARAMETERS: State - The state object to be deleted + * + * RETURN: None + * + * DESCRIPTION: Put a state object back into the global state cache. The object + * is not actually freed at this time. + * + ******************************************************************************/ + +void +AcpiUtDeleteGenericState ( + ACPI_GENERIC_STATE *State) +{ + ACPI_FUNCTION_TRACE ("UtDeleteGenericState"); + + + (void) AcpiOsReleaseObject (AcpiGbl_StateCache, State); + return_VOID; +} + + |
