forked from KolibriOS/kolibrios
595 lines
18 KiB
C
595 lines
18 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: hwgpe - Low level GPE enable/disable/clear functions
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2010, 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 "accommon.h"
|
|
#include "acevents.h"
|
|
|
|
#define _COMPONENT ACPI_HARDWARE
|
|
ACPI_MODULE_NAME ("hwgpe")
|
|
|
|
/* Local prototypes */
|
|
|
|
static ACPI_STATUS
|
|
AcpiHwEnableWakeupGpeBlock (
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
void *Context);
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwLowDisableGpe
|
|
*
|
|
* PARAMETERS: GpeEventInfo - Info block for the GPE to be disabled
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Disable a single GPE in the enable register.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwLowDisableGpe (
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo)
|
|
{
|
|
ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
|
|
ACPI_STATUS Status;
|
|
UINT32 EnableMask;
|
|
|
|
|
|
/* Get the info block for the entire GPE register */
|
|
|
|
GpeRegisterInfo = GpeEventInfo->RegisterInfo;
|
|
if (!GpeRegisterInfo)
|
|
{
|
|
return (AE_NOT_EXIST);
|
|
}
|
|
|
|
/* Get current value of the enable register that contains this GPE */
|
|
|
|
Status = AcpiHwRead (&EnableMask, &GpeRegisterInfo->EnableAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
/* Clear just the bit that corresponds to this GPE */
|
|
|
|
ACPI_CLEAR_BIT (EnableMask, ((UINT32) 1 <<
|
|
(GpeEventInfo->GpeNumber - GpeRegisterInfo->BaseGpeNumber)));
|
|
|
|
|
|
/* Write the updated enable mask */
|
|
|
|
Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress);
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwWriteGpeEnableReg
|
|
*
|
|
* PARAMETERS: GpeEventInfo - Info block for the GPE to be enabled
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must
|
|
* already be cleared or set in the parent register
|
|
* EnableForRun mask.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwWriteGpeEnableReg (
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo)
|
|
{
|
|
ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Get the info block for the entire GPE register */
|
|
|
|
GpeRegisterInfo = GpeEventInfo->RegisterInfo;
|
|
if (!GpeRegisterInfo)
|
|
{
|
|
return (AE_NOT_EXIST);
|
|
}
|
|
|
|
/* Write the entire GPE (runtime) enable register */
|
|
|
|
Status = AcpiHwWrite (GpeRegisterInfo->EnableForRun,
|
|
&GpeRegisterInfo->EnableAddress);
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwClearGpe
|
|
*
|
|
* PARAMETERS: GpeEventInfo - Info block for the GPE to be cleared
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Clear the status bit for a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwClearGpe (
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo)
|
|
{
|
|
ACPI_STATUS Status;
|
|
UINT8 RegisterBit;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
RegisterBit = (UINT8) (1 <<
|
|
(GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber));
|
|
|
|
/*
|
|
* Write a one to the appropriate bit in the status register to
|
|
* clear this GPE.
|
|
*/
|
|
Status = AcpiHwWrite (RegisterBit,
|
|
&GpeEventInfo->RegisterInfo->StatusAddress);
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwGetGpeStatus
|
|
*
|
|
* PARAMETERS: GpeEventInfo - Info block for the GPE to queried
|
|
* EventStatus - Where the GPE status is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Return the status of a single GPE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwGetGpeStatus (
|
|
ACPI_GPE_EVENT_INFO *GpeEventInfo,
|
|
ACPI_EVENT_STATUS *EventStatus)
|
|
{
|
|
UINT32 InByte;
|
|
UINT8 RegisterBit;
|
|
ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
|
|
ACPI_STATUS Status;
|
|
ACPI_EVENT_STATUS LocalEventStatus = 0;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
if (!EventStatus)
|
|
{
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Get the info block for the entire GPE register */
|
|
|
|
GpeRegisterInfo = GpeEventInfo->RegisterInfo;
|
|
|
|
/* Get the register bitmask for this GPE */
|
|
|
|
RegisterBit = (UINT8) (1 <<
|
|
(GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber));
|
|
|
|
/* GPE currently enabled? (enabled for runtime?) */
|
|
|
|
if (RegisterBit & GpeRegisterInfo->EnableForRun)
|
|
{
|
|
LocalEventStatus |= ACPI_EVENT_FLAG_ENABLED;
|
|
}
|
|
|
|
/* GPE enabled for wake? */
|
|
|
|
if (RegisterBit & GpeRegisterInfo->EnableForWake)
|
|
{
|
|
LocalEventStatus |= ACPI_EVENT_FLAG_WAKE_ENABLED;
|
|
}
|
|
|
|
/* GPE currently active (status bit == 1)? */
|
|
|
|
Status = AcpiHwRead (&InByte, &GpeRegisterInfo->StatusAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
if (RegisterBit & InByte)
|
|
{
|
|
LocalEventStatus |= ACPI_EVENT_FLAG_SET;
|
|
}
|
|
|
|
/* Set return value */
|
|
|
|
(*EventStatus) = LocalEventStatus;
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwDisableGpeBlock
|
|
*
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
|
* GpeBlock - Gpe Block info
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Disable all GPEs within a single GPE block
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwDisableGpeBlock (
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
void *Context)
|
|
{
|
|
UINT32 i;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* Examine each GPE Register within the block */
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
/* Disable all GPEs in this register */
|
|
|
|
Status = AcpiHwWrite (0x00, &GpeBlock->RegisterInfo[i].EnableAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwClearGpeBlock
|
|
*
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
|
* GpeBlock - Gpe Block info
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Clear status bits for all GPEs within a single GPE block
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwClearGpeBlock (
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
void *Context)
|
|
{
|
|
UINT32 i;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* Examine each GPE Register within the block */
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
/* Clear status on all GPEs in this register */
|
|
|
|
Status = AcpiHwWrite (0xFF, &GpeBlock->RegisterInfo[i].StatusAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwEnableRuntimeGpeBlock
|
|
*
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
|
* GpeBlock - Gpe Block info
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes
|
|
* combination wake/run GPEs.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwEnableRuntimeGpeBlock (
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
void *Context)
|
|
{
|
|
UINT32 i;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* NOTE: assumes that all GPEs are currently disabled */
|
|
|
|
/* Examine each GPE Register within the block */
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
if (!GpeBlock->RegisterInfo[i].EnableForRun)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Enable all "runtime" GPEs in this register */
|
|
|
|
Status = AcpiHwWrite (GpeBlock->RegisterInfo[i].EnableForRun,
|
|
&GpeBlock->RegisterInfo[i].EnableAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwEnableWakeupGpeBlock
|
|
*
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
|
* GpeBlock - Gpe Block info
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes
|
|
* combination wake/run GPEs.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiHwEnableWakeupGpeBlock (
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
|
void *Context)
|
|
{
|
|
UINT32 i;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* Examine each GPE Register within the block */
|
|
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
|
{
|
|
if (!GpeBlock->RegisterInfo[i].EnableForWake)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Enable all "wake" GPEs in this register */
|
|
|
|
Status = AcpiHwWrite (GpeBlock->RegisterInfo[i].EnableForWake,
|
|
&GpeBlock->RegisterInfo[i].EnableAddress);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwDisableAllGpes
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Disable and clear all GPEs in all GPE blocks
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwDisableAllGpes (
|
|
void)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (HwDisableAllGpes);
|
|
|
|
|
|
Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
|
|
Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwEnableAllRuntimeGpes
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwEnableAllRuntimeGpes (
|
|
void)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (HwEnableAllRuntimeGpes);
|
|
|
|
|
|
Status = AcpiEvWalkGpeList (AcpiHwEnableRuntimeGpeBlock, NULL);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiHwEnableAllWakeupGpes
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiHwEnableAllWakeupGpes (
|
|
void)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (HwEnableAllWakeupGpes);
|
|
|
|
|
|
Status = AcpiEvWalkGpeList (AcpiHwEnableWakeupGpeBlock, NULL);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|