1286 lines
40 KiB
C
1286 lines
40 KiB
C
/******************************************************************************
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*
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* Module Name: evgpeblk - GPE block creation and initialization.
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* $Revision: 36 $
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification without rights to further distribute source must
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|
* include the following Disclaimer and Export Compliance provision in the
|
|
* documentation and/or other materials provided with distribution. In
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|
* addition, Licensee may not authorize further sublicense of source of any
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|
* portion of the Covered Code, and must include terms to the effect that the
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|
* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#include "acpi.h"
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#include "acevents.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_EVENTS
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ACPI_MODULE_NAME ("evgpeblk")
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/*******************************************************************************
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*
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* FUNCTION: AcpiEvValidGpeEvent
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*
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* PARAMETERS: GpeEventInfo - Info for this GPE
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*
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* RETURN: TRUE if the GpeEvent is valid
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*
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* DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL.
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* Should be called only when the GPE lists are semaphore locked
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* and not subject to change.
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*
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******************************************************************************/
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BOOLEAN
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AcpiEvValidGpeEvent (
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ACPI_GPE_EVENT_INFO *GpeEventInfo)
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{
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ACPI_GPE_XRUPT_INFO *GpeXruptBlock;
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ACPI_GPE_BLOCK_INFO *GpeBlock;
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ACPI_FUNCTION_ENTRY ();
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/* No need for spin lock since we are not changing any list elements */
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/* Walk the GPE interrupt levels */
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GpeXruptBlock = AcpiGbl_GpeXruptListHead;
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while (GpeXruptBlock)
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{
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GpeBlock = GpeXruptBlock->GpeBlockListHead;
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/* Walk the GPE blocks on this interrupt level */
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while (GpeBlock)
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{
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if ((&GpeBlock->EventInfo[0] <= GpeEventInfo) &&
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(&GpeBlock->EventInfo[((ACPI_SIZE) GpeBlock->RegisterCount) * 8] > GpeEventInfo))
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{
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return (TRUE);
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}
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GpeBlock = GpeBlock->Next;
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}
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GpeXruptBlock = GpeXruptBlock->Next;
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}
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return (FALSE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiEvWalkGpeList
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*
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* PARAMETERS: GpeWalkCallback - Routine called for each GPE block
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*
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* RETURN: Status
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*
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* DESCRIPTION: Walk the GPE lists.
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* FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiEvWalkGpeList (
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ACPI_GPE_CALLBACK GpeWalkCallback)
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{
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ACPI_GPE_BLOCK_INFO *GpeBlock;
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ACPI_GPE_XRUPT_INFO *GpeXruptInfo;
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE ("EvWalkGpeList");
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AcpiOsAcquireLock (AcpiGbl_GpeLock, ACPI_ISR);
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/* Walk the interrupt level descriptor list */
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GpeXruptInfo = AcpiGbl_GpeXruptListHead;
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while (GpeXruptInfo)
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{
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/* Walk all Gpe Blocks attached to this interrupt level */
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GpeBlock = GpeXruptInfo->GpeBlockListHead;
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while (GpeBlock)
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{
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/* One callback per GPE block */
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Status = GpeWalkCallback (GpeXruptInfo, GpeBlock);
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if (ACPI_FAILURE (Status))
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{
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goto UnlockAndExit;
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}
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GpeBlock = GpeBlock->Next;
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}
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GpeXruptInfo = GpeXruptInfo->Next;
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}
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UnlockAndExit:
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AcpiOsReleaseLock (AcpiGbl_GpeLock, ACPI_ISR);
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return_ACPI_STATUS (Status);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiEvDeleteGpeHandlers
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*
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* PARAMETERS: GpeXruptInfo - GPE Interrupt info
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* GpeBlock - Gpe Block info
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*
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* RETURN: Status
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*
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* DESCRIPTION: Delete all Handler objects found in the GPE data structs.
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* Used only prior to termination.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiEvDeleteGpeHandlers (
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ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
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ACPI_GPE_BLOCK_INFO *GpeBlock)
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{
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ACPI_GPE_EVENT_INFO *GpeEventInfo;
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ACPI_NATIVE_UINT i;
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ACPI_NATIVE_UINT j;
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ACPI_FUNCTION_TRACE ("EvDeleteGpeHandlers");
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/* Examine each GPE Register within the block */
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for (i = 0; i < GpeBlock->RegisterCount; i++)
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{
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/* Now look at the individual GPEs in this byte register */
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for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
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{
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GpeEventInfo = &GpeBlock->EventInfo[(i * ACPI_GPE_REGISTER_WIDTH) + j];
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if ((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_HANDLER)
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{
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ACPI_MEM_FREE (GpeEventInfo->Dispatch.Handler);
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GpeEventInfo->Dispatch.Handler = NULL;
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GpeEventInfo->Flags &= ~ACPI_GPE_DISPATCH_MASK;
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}
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}
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}
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiEvSaveMethodInfo
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*
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* PARAMETERS: Callback from WalkNamespace
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*
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* RETURN: Status
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*
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* DESCRIPTION: Called from AcpiWalkNamespace. Expects each object to be a
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* control method under the _GPE portion of the namespace.
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* Extract the name and GPE type from the object, saving this
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* information for quick lookup during GPE dispatch
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*
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* The name of each GPE control method is of the form:
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* "_Lxx" or "_Exx"
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* Where:
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* L - means that the GPE is level triggered
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* E - means that the GPE is edge triggered
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* xx - is the GPE number [in HEX]
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*
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******************************************************************************/
|
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static ACPI_STATUS
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AcpiEvSaveMethodInfo (
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ACPI_HANDLE ObjHandle,
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UINT32 Level,
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void *ObjDesc,
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void **ReturnValue)
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{
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ACPI_GPE_BLOCK_INFO *GpeBlock = (void *) ObjDesc;
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ACPI_GPE_EVENT_INFO *GpeEventInfo;
|
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UINT32 GpeNumber;
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char Name[ACPI_NAME_SIZE + 1];
|
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UINT8 Type;
|
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ACPI_STATUS Status;
|
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|
|
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ACPI_FUNCTION_TRACE ("EvSaveMethodInfo");
|
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|
|
|
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/*
|
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* _Lxx and _Exx GPE method support
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*
|
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* 1) Extract the name from the object and convert to a string
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*/
|
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ACPI_MOVE_32_TO_32 (Name,
|
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&((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Integer);
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Name[ACPI_NAME_SIZE] = 0;
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|
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/*
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* 2) Edge/Level determination is based on the 2nd character
|
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* of the method name
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*
|
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* NOTE: Default GPE type is RUNTIME. May be changed later to WAKE
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* if a _PRW object is found that points to this GPE.
|
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*/
|
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switch (Name[1])
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{
|
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case 'L':
|
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Type = ACPI_GPE_LEVEL_TRIGGERED;
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break;
|
|
|
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case 'E':
|
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Type = ACPI_GPE_EDGE_TRIGGERED;
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break;
|
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|
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default:
|
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/* Unknown method type, just ignore it! */
|
|
|
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ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
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"Unknown GPE method type: %s (name not of form _Lxx or _Exx)\n",
|
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Name));
|
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return_ACPI_STATUS (AE_OK);
|
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}
|
|
|
|
/* Convert the last two characters of the name to the GPE Number */
|
|
|
|
GpeNumber = ACPI_STRTOUL (&Name[2], NULL, 16);
|
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if (GpeNumber == ACPI_UINT32_MAX)
|
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{
|
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/* Conversion failed; invalid method, just ignore it */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)\n",
|
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Name));
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return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Ensure that we have a valid GPE number for this GPE block */
|
|
|
|
if ((GpeNumber < GpeBlock->BlockBaseNumber) ||
|
|
(GpeNumber >= (GpeBlock->BlockBaseNumber + (GpeBlock->RegisterCount * 8))))
|
|
{
|
|
/*
|
|
* Not valid for this GPE block, just ignore it
|
|
* However, it may be valid for a different GPE block, since GPE0 and GPE1
|
|
* methods both appear under \_GPE.
|
|
*/
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Now we can add this information to the GpeEventInfo block
|
|
* for use during dispatch of this GPE. Default type is RUNTIME, although
|
|
* this may change when the _PRW methods are executed later.
|
|
*/
|
|
GpeEventInfo = &GpeBlock->EventInfo[GpeNumber - GpeBlock->BlockBaseNumber];
|
|
|
|
GpeEventInfo->Flags = (UINT8) (Type | ACPI_GPE_DISPATCH_METHOD |
|
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ACPI_GPE_TYPE_RUNTIME);
|
|
|
|
GpeEventInfo->Dispatch.MethodNode = (ACPI_NAMESPACE_NODE *) ObjHandle;
|
|
|
|
/* Update enable mask, but don't enable the HW GPE as of yet */
|
|
|
|
Status = AcpiEvEnableGpe (GpeEventInfo, FALSE);
|
|
|
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ACPI_DEBUG_PRINT ((ACPI_DB_LOAD,
|
|
"Registered GPE method %s as GPE number 0x%.2X\n",
|
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Name, GpeNumber));
|
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return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvMatchPrwAndGpe
|
|
*
|
|
* PARAMETERS: Callback from WalkNamespace
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Called from AcpiWalkNamespace. Expects each object to be a
|
|
* Device. Run the _PRW method. If present, extract the GPE
|
|
* number and mark the GPE as a WAKE GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiEvMatchPrwAndGpe (
|
|
ACPI_HANDLE ObjHandle,
|
|
UINT32 Level,
|
|
void *Info,
|
|
void **ReturnValue)
|
|
{
|
|
ACPI_GPE_WALK_INFO *GpeInfo = (void *) Info;
|
|
ACPI_NAMESPACE_NODE *GpeDevice;
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock;
|
|
ACPI_NAMESPACE_NODE *TargetGpeDevice;
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo;
|
|
ACPI_OPERAND_OBJECT *PkgDesc;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
UINT32 GpeNumber;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvMatchPrwAndGpe");
|
|
|
|
|
|
/* Check for a _PRW method under this device */
|
|
|
|
Status = AcpiUtEvaluateObject (ObjHandle, METHOD_NAME__PRW,
|
|
ACPI_BTYPE_PACKAGE, &PkgDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
/* Ignore all errors from _PRW, we don't want to abort the subsystem */
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* The returned _PRW package must have at least two elements */
|
|
|
|
if (PkgDesc->Package.Count < 2)
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Extract pointers from the input context */
|
|
|
|
GpeDevice = GpeInfo->GpeDevice;
|
|
GpeBlock = GpeInfo->GpeBlock;
|
|
|
|
/*
|
|
* The _PRW object must return a package, we are only interested
|
|
* in the first element
|
|
*/
|
|
ObjDesc = PkgDesc->Package.Elements[0];
|
|
|
|
if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
|
|
{
|
|
/* Use FADT-defined GPE device (from definition of _PRW) */
|
|
|
|
TargetGpeDevice = AcpiGbl_FadtGpeDevice;
|
|
|
|
/* Integer is the GPE number in the FADT described GPE blocks */
|
|
|
|
GpeNumber = (UINT32) ObjDesc->Integer.Value;
|
|
}
|
|
else if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_PACKAGE)
|
|
{
|
|
/* Package contains a GPE reference and GPE number within a GPE block */
|
|
|
|
if ((ObjDesc->Package.Count < 2) ||
|
|
(ACPI_GET_OBJECT_TYPE (ObjDesc->Package.Elements[0]) != ACPI_TYPE_LOCAL_REFERENCE) ||
|
|
(ACPI_GET_OBJECT_TYPE (ObjDesc->Package.Elements[1]) != ACPI_TYPE_INTEGER))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Get GPE block reference and decode */
|
|
|
|
TargetGpeDevice = ObjDesc->Package.Elements[0]->Reference.Node;
|
|
GpeNumber = (UINT32) ObjDesc->Package.Elements[1]->Integer.Value;
|
|
}
|
|
else
|
|
{
|
|
/* Unknown type, just ignore it */
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Is this GPE within this block?
|
|
*
|
|
* TRUE iff these conditions are true:
|
|
* 1) The GPE devices match.
|
|
* 2) The GPE index(number) is within the range of the Gpe Block
|
|
* associated with the GPE device.
|
|
*/
|
|
if ((GpeDevice == TargetGpeDevice) &&
|
|
(GpeNumber >= GpeBlock->BlockBaseNumber) &&
|
|
(GpeNumber < GpeBlock->BlockBaseNumber + (GpeBlock->RegisterCount * 8)))
|
|
{
|
|
GpeEventInfo = &GpeBlock->EventInfo[GpeNumber - GpeBlock->BlockBaseNumber];
|
|
|
|
/* Mark GPE for WAKE-ONLY but WAKE_DISABLED */
|
|
|
|
GpeEventInfo->Flags &= ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED);
|
|
Status = AcpiEvSetGpeType (GpeEventInfo, ACPI_GPE_TYPE_WAKE);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_DISABLE);
|
|
}
|
|
|
|
Cleanup:
|
|
AcpiUtRemoveReference (PkgDesc);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvGetGpeXruptBlock
|
|
*
|
|
* PARAMETERS: InterruptLevel - Interrupt for a GPE block
|
|
*
|
|
* RETURN: A GPE interrupt block
|
|
*
|
|
* DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt
|
|
* block per unique interrupt level used for GPEs.
|
|
* Should be called only when the GPE lists are semaphore locked
|
|
* and not subject to change.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_GPE_XRUPT_INFO *
|
|
AcpiEvGetGpeXruptBlock (
|
|
UINT32 InterruptLevel)
|
|
{
|
|
ACPI_GPE_XRUPT_INFO *NextGpeXrupt;
|
|
ACPI_GPE_XRUPT_INFO *GpeXrupt;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvGetGpeXruptBlock");
|
|
|
|
|
|
/* No need for spin lock since we are not changing any list elements here */
|
|
|
|
NextGpeXrupt = AcpiGbl_GpeXruptListHead;
|
|
while (NextGpeXrupt)
|
|
{
|
|
if (NextGpeXrupt->InterruptLevel == InterruptLevel)
|
|
{
|
|
return_PTR (NextGpeXrupt);
|
|
}
|
|
|
|
NextGpeXrupt = NextGpeXrupt->Next;
|
|
}
|
|
|
|
/* Not found, must allocate a new xrupt descriptor */
|
|
|
|
GpeXrupt = ACPI_MEM_CALLOCATE (sizeof (ACPI_GPE_XRUPT_INFO));
|
|
if (!GpeXrupt)
|
|
{
|
|
return_PTR (NULL);
|
|
}
|
|
|
|
GpeXrupt->InterruptLevel = InterruptLevel;
|
|
|
|
/* Install new interrupt descriptor with spin lock */
|
|
|
|
AcpiOsAcquireLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
if (AcpiGbl_GpeXruptListHead)
|
|
{
|
|
NextGpeXrupt = AcpiGbl_GpeXruptListHead;
|
|
while (NextGpeXrupt->Next)
|
|
{
|
|
NextGpeXrupt = NextGpeXrupt->Next;
|
|
}
|
|
|
|
NextGpeXrupt->Next = GpeXrupt;
|
|
GpeXrupt->Previous = NextGpeXrupt;
|
|
}
|
|
else
|
|
{
|
|
AcpiGbl_GpeXruptListHead = GpeXrupt;
|
|
}
|
|
AcpiOsReleaseLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
|
|
/* Install new interrupt handler if not SCI_INT */
|
|
|
|
if (InterruptLevel != AcpiGbl_FADT->SciInt)
|
|
{
|
|
Status = AcpiOsInstallInterruptHandler (InterruptLevel,
|
|
AcpiEvGpeXruptHandler, GpeXrupt);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Could not install GPE interrupt handler at level 0x%X\n",
|
|
InterruptLevel));
|
|
return_PTR (NULL);
|
|
}
|
|
}
|
|
|
|
return_PTR (GpeXrupt);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvDeleteGpeXrupt
|
|
*
|
|
* PARAMETERS: GpeXrupt - A GPE interrupt info block
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Remove and free a GpeXrupt block. Remove an associated
|
|
* interrupt handler if not the SCI interrupt.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiEvDeleteGpeXrupt (
|
|
ACPI_GPE_XRUPT_INFO *GpeXrupt)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvDeleteGpeXrupt");
|
|
|
|
|
|
/* We never want to remove the SCI interrupt handler */
|
|
|
|
if (GpeXrupt->InterruptLevel == AcpiGbl_FADT->SciInt)
|
|
{
|
|
GpeXrupt->GpeBlockListHead = NULL;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Disable this interrupt */
|
|
|
|
Status = AcpiOsRemoveInterruptHandler (GpeXrupt->InterruptLevel,
|
|
AcpiEvGpeXruptHandler);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Unlink the interrupt block with lock */
|
|
|
|
AcpiOsAcquireLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
if (GpeXrupt->Previous)
|
|
{
|
|
GpeXrupt->Previous->Next = GpeXrupt->Next;
|
|
}
|
|
|
|
if (GpeXrupt->Next)
|
|
{
|
|
GpeXrupt->Next->Previous = GpeXrupt->Previous;
|
|
}
|
|
AcpiOsReleaseLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
|
|
/* Free the block */
|
|
|
|
ACPI_MEM_FREE (GpeXrupt);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvInstallGpeBlock
|
|
*
|
|
* PARAMETERS: GpeBlock - New GPE block
|
|
* InterruptLevel - Level to be associated with this GPE block
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Install new GPE block with mutex support
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiEvInstallGpeBlock (
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
UINT32 InterruptLevel)
|
|
{
|
|
ACPI_GPE_BLOCK_INFO *NextGpeBlock;
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptBlock;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvInstallGpeBlock");
|
|
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
GpeXruptBlock = AcpiEvGetGpeXruptBlock (InterruptLevel);
|
|
if (!GpeXruptBlock)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
/* Install the new block at the end of the list for this interrupt with lock */
|
|
|
|
AcpiOsAcquireLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
if (GpeXruptBlock->GpeBlockListHead)
|
|
{
|
|
NextGpeBlock = GpeXruptBlock->GpeBlockListHead;
|
|
while (NextGpeBlock->Next)
|
|
{
|
|
NextGpeBlock = NextGpeBlock->Next;
|
|
}
|
|
|
|
NextGpeBlock->Next = GpeBlock;
|
|
GpeBlock->Previous = NextGpeBlock;
|
|
}
|
|
else
|
|
{
|
|
GpeXruptBlock->GpeBlockListHead = GpeBlock;
|
|
}
|
|
|
|
GpeBlock->XruptBlock = GpeXruptBlock;
|
|
AcpiOsReleaseLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
|
|
UnlockAndExit:
|
|
Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvDeleteGpeBlock
|
|
*
|
|
* PARAMETERS: GpeBlock - Existing GPE block
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Remove a GPE block
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiEvDeleteGpeBlock (
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvInstallGpeBlock");
|
|
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Disable all GPEs in this block */
|
|
|
|
Status = AcpiHwDisableGpeBlock (GpeBlock->XruptBlock, GpeBlock);
|
|
|
|
if (!GpeBlock->Previous && !GpeBlock->Next)
|
|
{
|
|
/* This is the last GpeBlock on this interrupt */
|
|
|
|
Status = AcpiEvDeleteGpeXrupt (GpeBlock->XruptBlock);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto UnlockAndExit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Remove the block on this interrupt with lock */
|
|
|
|
AcpiOsAcquireLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
if (GpeBlock->Previous)
|
|
{
|
|
GpeBlock->Previous->Next = GpeBlock->Next;
|
|
}
|
|
else
|
|
{
|
|
GpeBlock->XruptBlock->GpeBlockListHead = GpeBlock->Next;
|
|
}
|
|
|
|
if (GpeBlock->Next)
|
|
{
|
|
GpeBlock->Next->Previous = GpeBlock->Previous;
|
|
}
|
|
AcpiOsReleaseLock (AcpiGbl_GpeLock, ACPI_NOT_ISR);
|
|
}
|
|
|
|
/* Free the GpeBlock */
|
|
|
|
ACPI_MEM_FREE (GpeBlock->RegisterInfo);
|
|
ACPI_MEM_FREE (GpeBlock->EventInfo);
|
|
ACPI_MEM_FREE (GpeBlock);
|
|
|
|
UnlockAndExit:
|
|
Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvCreateGpeInfoBlocks
|
|
*
|
|
* PARAMETERS: GpeBlock - New GPE block
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create the RegisterInfo and EventInfo blocks for this GPE block
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiEvCreateGpeInfoBlocks (
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock)
|
|
{
|
|
ACPI_GPE_REGISTER_INFO *GpeRegisterInfo = NULL;
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo = NULL;
|
|
ACPI_GPE_EVENT_INFO *ThisEvent;
|
|
ACPI_GPE_REGISTER_INFO *ThisRegister;
|
|
ACPI_NATIVE_UINT i;
|
|
ACPI_NATIVE_UINT j;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvCreateGpeInfoBlocks");
|
|
|
|
|
|
/* Allocate the GPE register information block */
|
|
|
|
GpeRegisterInfo = ACPI_MEM_CALLOCATE (
|
|
(ACPI_SIZE) GpeBlock->RegisterCount *
|
|
sizeof (ACPI_GPE_REGISTER_INFO));
|
|
if (!GpeRegisterInfo)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Could not allocate the GpeRegisterInfo table\n"));
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/*
|
|
* Allocate the GPE EventInfo block. There are eight distinct GPEs
|
|
* per register. Initialization to zeros is sufficient.
|
|
*/
|
|
GpeEventInfo = ACPI_MEM_CALLOCATE (
|
|
((ACPI_SIZE) GpeBlock->RegisterCount * ACPI_GPE_REGISTER_WIDTH) *
|
|
sizeof (ACPI_GPE_EVENT_INFO));
|
|
if (!GpeEventInfo)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not allocate the GpeEventInfo table\n"));
|
|
Status = AE_NO_MEMORY;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
/* Save the new Info arrays in the GPE block */
|
|
|
|
GpeBlock->RegisterInfo = GpeRegisterInfo;
|
|
GpeBlock->EventInfo = GpeEventInfo;
|
|
|
|
/*
|
|
* Initialize the GPE Register and Event structures. A goal of these
|
|
* tables is to hide the fact that there are two separate GPE register sets
|
|
* in a given gpe hardware block, the status registers occupy the first half,
|
|
* and the enable registers occupy the second half.
|
|
*/
|
|
ThisRegister = GpeRegisterInfo;
|
|
ThisEvent = GpeEventInfo;
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
/* Init the RegisterInfo for this GPE register (8 GPEs) */
|
|
|
|
ThisRegister->BaseGpeNumber = (UINT8) (GpeBlock->BlockBaseNumber +
|
|
(i * ACPI_GPE_REGISTER_WIDTH));
|
|
|
|
ACPI_STORE_ADDRESS (ThisRegister->StatusAddress.Address,
|
|
(ACPI_GET_ADDRESS (GpeBlock->BlockAddress.Address)
|
|
+ i));
|
|
|
|
ACPI_STORE_ADDRESS (ThisRegister->EnableAddress.Address,
|
|
(ACPI_GET_ADDRESS (GpeBlock->BlockAddress.Address)
|
|
+ i
|
|
+ GpeBlock->RegisterCount));
|
|
|
|
ThisRegister->StatusAddress.AddressSpaceId = GpeBlock->BlockAddress.AddressSpaceId;
|
|
ThisRegister->EnableAddress.AddressSpaceId = GpeBlock->BlockAddress.AddressSpaceId;
|
|
ThisRegister->StatusAddress.RegisterBitWidth = ACPI_GPE_REGISTER_WIDTH;
|
|
ThisRegister->EnableAddress.RegisterBitWidth = ACPI_GPE_REGISTER_WIDTH;
|
|
ThisRegister->StatusAddress.RegisterBitOffset = ACPI_GPE_REGISTER_WIDTH;
|
|
ThisRegister->EnableAddress.RegisterBitOffset = ACPI_GPE_REGISTER_WIDTH;
|
|
|
|
/* Init the EventInfo for each GPE within this register */
|
|
|
|
for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
|
|
{
|
|
ThisEvent->RegisterBit = AcpiGbl_DecodeTo8bit[j];
|
|
ThisEvent->RegisterInfo = ThisRegister;
|
|
ThisEvent++;
|
|
}
|
|
|
|
/*
|
|
* Clear the status/enable registers. Note that status registers
|
|
* are cleared by writing a '1', while enable registers are cleared
|
|
* by writing a '0'.
|
|
*/
|
|
Status = AcpiHwLowLevelWrite (ACPI_GPE_REGISTER_WIDTH, 0x00,
|
|
&ThisRegister->EnableAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
Status = AcpiHwLowLevelWrite (ACPI_GPE_REGISTER_WIDTH, 0xFF,
|
|
&ThisRegister->StatusAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
ThisRegister++;
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
|
|
ErrorExit:
|
|
if (GpeRegisterInfo)
|
|
{
|
|
ACPI_MEM_FREE (GpeRegisterInfo);
|
|
}
|
|
if (GpeEventInfo)
|
|
{
|
|
ACPI_MEM_FREE (GpeEventInfo);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvCreateGpeBlock
|
|
*
|
|
* PARAMETERS: GpeDevice - Handle to the parent GPE block
|
|
* GpeBlockAddress - Address and SpaceID
|
|
* RegisterCount - Number of GPE register pairs in the block
|
|
* GpeBlockBaseNumber - Starting GPE number for the block
|
|
* InterruptLevel - H/W interrupt for the block
|
|
* ReturnGpeBlock - Where the new block descriptor is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create and Install a block of GPE registers
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiEvCreateGpeBlock (
|
|
ACPI_NAMESPACE_NODE *GpeDevice,
|
|
ACPI_GENERIC_ADDRESS *GpeBlockAddress,
|
|
UINT32 RegisterCount,
|
|
UINT8 GpeBlockBaseNumber,
|
|
UINT32 InterruptLevel,
|
|
ACPI_GPE_BLOCK_INFO **ReturnGpeBlock)
|
|
{
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock;
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo;
|
|
ACPI_NATIVE_UINT i;
|
|
ACPI_NATIVE_UINT j;
|
|
UINT32 WakeGpeCount;
|
|
UINT32 GpeEnabledCount;
|
|
ACPI_STATUS Status;
|
|
ACPI_GPE_WALK_INFO GpeInfo;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvCreateGpeBlock");
|
|
|
|
|
|
if (!RegisterCount)
|
|
{
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Allocate a new GPE block */
|
|
|
|
GpeBlock = ACPI_MEM_CALLOCATE (sizeof (ACPI_GPE_BLOCK_INFO));
|
|
if (!GpeBlock)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Initialize the new GPE block */
|
|
|
|
GpeBlock->RegisterCount = RegisterCount;
|
|
GpeBlock->BlockBaseNumber = GpeBlockBaseNumber;
|
|
GpeBlock->Node = GpeDevice;
|
|
|
|
ACPI_MEMCPY (&GpeBlock->BlockAddress, GpeBlockAddress, sizeof (ACPI_GENERIC_ADDRESS));
|
|
|
|
/* Create the RegisterInfo and EventInfo sub-structures */
|
|
|
|
Status = AcpiEvCreateGpeInfoBlocks (GpeBlock);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_MEM_FREE (GpeBlock);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Install the new block in the global list(s) */
|
|
|
|
Status = AcpiEvInstallGpeBlock (GpeBlock, InterruptLevel);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_MEM_FREE (GpeBlock);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Find all GPE methods (_Lxx, _Exx) for this block */
|
|
|
|
Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
|
|
ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, AcpiEvSaveMethodInfo,
|
|
GpeBlock, NULL);
|
|
|
|
/*
|
|
* Runtime option: Should Wake GPEs be enabled at runtime? The default
|
|
* is No,they should only be enabled just as the machine goes to sleep.
|
|
*/
|
|
if (AcpiGbl_LeaveWakeGpesDisabled)
|
|
{
|
|
/*
|
|
* Differentiate RUNTIME vs WAKE GPEs, via the _PRW control methods.
|
|
* (Each GPE that has one or more _PRWs that reference it is by
|
|
* definition a WAKE GPE and will not be enabled while the machine
|
|
* is running.)
|
|
*/
|
|
GpeInfo.GpeBlock = GpeBlock;
|
|
GpeInfo.GpeDevice = GpeDevice;
|
|
|
|
Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
|
|
ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, AcpiEvMatchPrwAndGpe,
|
|
&GpeInfo, NULL);
|
|
}
|
|
|
|
/*
|
|
* Enable all GPEs in this block that are 1) "runtime" or "run/wake" GPEs,
|
|
* and 2) have a corresponding _Lxx or _Exx method. All other GPEs must
|
|
* be enabled via the AcpiEnableGpe() external interface.
|
|
*/
|
|
WakeGpeCount = 0;
|
|
GpeEnabledCount = 0;
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
/* Get the info block for this particular GPE */
|
|
|
|
GpeEventInfo = &GpeBlock->EventInfo[(i * ACPI_GPE_REGISTER_WIDTH) + j];
|
|
|
|
if (((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_METHOD) &&
|
|
(GpeEventInfo->Flags & ACPI_GPE_TYPE_RUNTIME))
|
|
{
|
|
GpeEnabledCount++;
|
|
}
|
|
|
|
if (GpeEventInfo->Flags & ACPI_GPE_TYPE_WAKE)
|
|
{
|
|
WakeGpeCount++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Dump info about this GPE block */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
|
|
"GPE %02X to %02X [%4.4s] %u regs at %8.8X%8.8X on int 0x%X\n",
|
|
(UINT32) GpeBlock->BlockBaseNumber,
|
|
(UINT32) (GpeBlock->BlockBaseNumber +
|
|
((GpeBlock->RegisterCount * ACPI_GPE_REGISTER_WIDTH) -1)),
|
|
GpeDevice->Name.Ascii,
|
|
GpeBlock->RegisterCount,
|
|
ACPI_FORMAT_UINT64 (ACPI_GET_ADDRESS (GpeBlock->BlockAddress.Address)),
|
|
InterruptLevel));
|
|
|
|
|
|
/* Enable all valid GPEs found above */
|
|
|
|
Status = AcpiHwEnableRuntimeGpeBlock (NULL, GpeBlock);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
|
|
"Found %u Wake, Enabled %u Runtime GPEs in this block\n",
|
|
WakeGpeCount, GpeEnabledCount));
|
|
|
|
/* Return the new block */
|
|
|
|
if (ReturnGpeBlock)
|
|
{
|
|
(*ReturnGpeBlock) = GpeBlock;
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEvGpeInitialize
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Initialize the GPE data structures
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiEvGpeInitialize (
|
|
void)
|
|
{
|
|
UINT32 RegisterCount0 = 0;
|
|
UINT32 RegisterCount1 = 0;
|
|
UINT32 GpeNumberMax = 0;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("EvGpeInitialize");
|
|
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Initialize the GPE Block(s) defined in the FADT
|
|
*
|
|
* Why the GPE register block lengths are divided by 2: From the ACPI Spec,
|
|
* section "General-Purpose Event Registers", we have:
|
|
*
|
|
* "Each register block contains two registers of equal length
|
|
* GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the
|
|
* GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN
|
|
* The length of the GPE1_STS and GPE1_EN registers is equal to
|
|
* half the GPE1_LEN. If a generic register block is not supported
|
|
* then its respective block pointer and block length values in the
|
|
* FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need
|
|
* to be the same size."
|
|
*/
|
|
|
|
/*
|
|
* Determine the maximum GPE number for this machine.
|
|
*
|
|
* Note: both GPE0 and GPE1 are optional, and either can exist without
|
|
* the other.
|
|
*
|
|
* If EITHER the register length OR the block address are zero, then that
|
|
* particular block is not supported.
|
|
*/
|
|
if (AcpiGbl_FADT->Gpe0BlkLen &&
|
|
ACPI_GET_ADDRESS (AcpiGbl_FADT->XGpe0Blk.Address))
|
|
{
|
|
/* GPE block 0 exists (has both length and address > 0) */
|
|
|
|
RegisterCount0 = (UINT16) (AcpiGbl_FADT->Gpe0BlkLen / 2);
|
|
|
|
GpeNumberMax = (RegisterCount0 * ACPI_GPE_REGISTER_WIDTH) - 1;
|
|
|
|
/* Install GPE Block 0 */
|
|
|
|
Status = AcpiEvCreateGpeBlock (AcpiGbl_FadtGpeDevice, &AcpiGbl_FADT->XGpe0Blk,
|
|
RegisterCount0, 0, AcpiGbl_FADT->SciInt, &AcpiGbl_GpeFadtBlocks[0]);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_REPORT_ERROR ((
|
|
"Could not create GPE Block 0, %s\n",
|
|
AcpiFormatException (Status)));
|
|
}
|
|
}
|
|
|
|
if (AcpiGbl_FADT->Gpe1BlkLen &&
|
|
ACPI_GET_ADDRESS (AcpiGbl_FADT->XGpe1Blk.Address))
|
|
{
|
|
/* GPE block 1 exists (has both length and address > 0) */
|
|
|
|
RegisterCount1 = (UINT16) (AcpiGbl_FADT->Gpe1BlkLen / 2);
|
|
|
|
/* Check for GPE0/GPE1 overlap (if both banks exist) */
|
|
|
|
if ((RegisterCount0) &&
|
|
(GpeNumberMax >= AcpiGbl_FADT->Gpe1Base))
|
|
{
|
|
ACPI_REPORT_ERROR ((
|
|
"GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1\n",
|
|
GpeNumberMax, AcpiGbl_FADT->Gpe1Base,
|
|
AcpiGbl_FADT->Gpe1Base +
|
|
((RegisterCount1 * ACPI_GPE_REGISTER_WIDTH) - 1)));
|
|
|
|
/* Ignore GPE1 block by setting the register count to zero */
|
|
|
|
RegisterCount1 = 0;
|
|
}
|
|
else
|
|
{
|
|
/* Install GPE Block 1 */
|
|
|
|
Status = AcpiEvCreateGpeBlock (AcpiGbl_FadtGpeDevice, &AcpiGbl_FADT->XGpe1Blk,
|
|
RegisterCount1, AcpiGbl_FADT->Gpe1Base,
|
|
AcpiGbl_FADT->SciInt, &AcpiGbl_GpeFadtBlocks[1]);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_REPORT_ERROR ((
|
|
"Could not create GPE Block 1, %s\n",
|
|
AcpiFormatException (Status)));
|
|
}
|
|
|
|
/*
|
|
* GPE0 and GPE1 do not have to be contiguous in the GPE number
|
|
* space. However, GPE0 always starts at GPE number zero.
|
|
*/
|
|
GpeNumberMax = AcpiGbl_FADT->Gpe1Base +
|
|
((RegisterCount1 * ACPI_GPE_REGISTER_WIDTH) - 1);
|
|
}
|
|
}
|
|
|
|
/* Exit if there are no GPE registers */
|
|
|
|
if ((RegisterCount0 + RegisterCount1) == 0)
|
|
{
|
|
/* GPEs are not required by ACPI, this is OK */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
|
|
"There are no GPE blocks defined in the FADT\n"));
|
|
Status = AE_OK;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Check for Max GPE number out-of-range */
|
|
|
|
if (GpeNumberMax > ACPI_GPE_MAX)
|
|
{
|
|
ACPI_REPORT_ERROR (("Maximum GPE number from FADT is too large: 0x%X\n",
|
|
GpeNumberMax));
|
|
Status = AE_BAD_VALUE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
Cleanup:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|