301 lines
11 KiB
C
301 lines
11 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: hwgpe - Low level GPE enable/disable/clear functions
|
|
* $Revision: 25 $
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999, 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.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include "acpi.h"
|
|
#include "achware.h"
|
|
#include "acnamesp.h"
|
|
#include "acevents.h"
|
|
|
|
#define _COMPONENT HARDWARE
|
|
MODULE_NAME ("hwgpe")
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwEnableGpe
|
|
*
|
|
* PARAMETERS: GpeNumber - The GPE
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Enable a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiHwEnableGpe (
|
|
UINT32 GpeNumber)
|
|
{
|
|
UINT8 InByte;
|
|
UINT32 RegisterIndex;
|
|
UINT8 BitMask;
|
|
|
|
/*
|
|
* Translate GPE number to index into global registers array.
|
|
*/
|
|
RegisterIndex = AcpiGbl_GpeValid[GpeNumber];
|
|
|
|
/*
|
|
* Figure out the bit offset for this GPE within the target register.
|
|
*/
|
|
BitMask = AcpiGbl_DecodeTo8bit [MOD_8 (GpeNumber)];
|
|
|
|
/*
|
|
* Read the current value of the register, set the appropriate bit
|
|
* to enable the GPE, and write out the new register.
|
|
*/
|
|
InByte = AcpiOsIn8 (AcpiGbl_GpeRegisters[RegisterIndex].EnableAddr);
|
|
AcpiOsOut8 (AcpiGbl_GpeRegisters[RegisterIndex].EnableAddr,
|
|
(UINT8)(InByte | BitMask));
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwDisableGpe
|
|
*
|
|
* PARAMETERS: GpeNumber - The GPE
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Disable a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiHwDisableGpe (
|
|
UINT32 GpeNumber)
|
|
{
|
|
UINT8 InByte;
|
|
UINT32 RegisterIndex;
|
|
UINT8 BitMask;
|
|
|
|
/*
|
|
* Translate GPE number to index into global registers array.
|
|
*/
|
|
RegisterIndex = AcpiGbl_GpeValid[GpeNumber];
|
|
|
|
/*
|
|
* Figure out the bit offset for this GPE within the target register.
|
|
*/
|
|
BitMask = AcpiGbl_DecodeTo8bit [MOD_8 (GpeNumber)];
|
|
|
|
/*
|
|
* Read the current value of the register, clear the appropriate bit,
|
|
* and write out the new register value to disable the GPE.
|
|
*/
|
|
InByte = AcpiOsIn8 (AcpiGbl_GpeRegisters[RegisterIndex].EnableAddr);
|
|
AcpiOsOut8 (AcpiGbl_GpeRegisters[RegisterIndex].EnableAddr,
|
|
(UINT8)(InByte & ~BitMask));
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwClearGpe
|
|
*
|
|
* PARAMETERS: GpeNumber - The GPE
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Clear a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiHwClearGpe (
|
|
UINT32 GpeNumber)
|
|
{
|
|
UINT32 RegisterIndex;
|
|
UINT8 BitMask;
|
|
|
|
/*
|
|
* Translate GPE number to index into global registers array.
|
|
*/
|
|
RegisterIndex = AcpiGbl_GpeValid[GpeNumber];
|
|
|
|
/*
|
|
* Figure out the bit offset for this GPE within the target register.
|
|
*/
|
|
BitMask = AcpiGbl_DecodeTo8bit [MOD_8 (GpeNumber)];
|
|
|
|
/*
|
|
* Write a one to the appropriate bit in the status register to
|
|
* clear this GPE.
|
|
*/
|
|
AcpiOsOut8 (AcpiGbl_GpeRegisters[RegisterIndex].StatusAddr, BitMask);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwGetGpeStatus
|
|
*
|
|
* PARAMETERS: GpeNumber - The GPE
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Return the status of a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiHwGetGpeStatus (
|
|
UINT32 GpeNumber,
|
|
ACPI_EVENT_STATUS *EventStatus)
|
|
{
|
|
UINT8 InByte = 0;
|
|
UINT32 RegisterIndex = 0;
|
|
UINT8 BitMask = 0;
|
|
|
|
if (!EventStatus)
|
|
{
|
|
return;
|
|
}
|
|
|
|
(*EventStatus) = 0;
|
|
|
|
/*
|
|
* Translate GPE number to index into global registers array.
|
|
*/
|
|
RegisterIndex = AcpiGbl_GpeValid[GpeNumber];
|
|
|
|
/*
|
|
* Figure out the bit offset for this GPE within the target register.
|
|
*/
|
|
BitMask = AcpiGbl_DecodeTo8bit [MOD_8 (GpeNumber)];
|
|
|
|
/*
|
|
* Enabled?:
|
|
*/
|
|
InByte = AcpiOsIn8 (AcpiGbl_GpeRegisters[RegisterIndex].EnableAddr);
|
|
|
|
if (BitMask & InByte)
|
|
{
|
|
(*EventStatus) |= ACPI_EVENT_FLAG_ENABLED;
|
|
}
|
|
|
|
/*
|
|
* Set?
|
|
*/
|
|
InByte = AcpiOsIn8 (AcpiGbl_GpeRegisters[RegisterIndex].StatusAddr);
|
|
|
|
if (BitMask & InByte)
|
|
{
|
|
(*EventStatus) |= ACPI_EVENT_FLAG_SET;
|
|
}
|
|
}
|