diff options
Diffstat (limited to 'sys/contrib/dev/acpica/evxfevnt.c')
-rw-r--r-- | sys/contrib/dev/acpica/evxfevnt.c | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/evxfevnt.c b/sys/contrib/dev/acpica/evxfevnt.c new file mode 100644 index 0000000..9e70832 --- /dev/null +++ b/sys/contrib/dev/acpica/evxfevnt.c @@ -0,0 +1,571 @@ +/****************************************************************************** + * + * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable + * $Revision: 57 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, 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 prton 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 __EVXFEVNT_C__ + +#include "acpi.h" +#include "acevents.h" + +#define _COMPONENT ACPI_EVENTS + ACPI_MODULE_NAME ("evxfevnt") + + +/******************************************************************************* + * + * FUNCTION: AcpiEnable + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Transfers the system into ACPI mode. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEnable (void) +{ + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE ("AcpiEnable"); + + + /* Make sure we have the FADT*/ + + if (!AcpiGbl_FADT) + { + ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n")); + return_ACPI_STATUS (AE_NO_ACPI_TABLES); + } + + if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI) + { + ACPI_DEBUG_PRINT ((ACPI_DB_OK, "Already in ACPI mode.\n")); + } + else + { + /* Transition to ACPI mode */ + + Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI); + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_FATAL, "Could not transition to ACPI mode.\n")); + return_ACPI_STATUS (Status); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_OK, "Transition to ACPI mode successful\n")); + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDisable + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Transfers the system into LEGACY mode. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDisable (void) +{ + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE ("AcpiDisable"); + + if (!AcpiGbl_FADT) + { + ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n")); + return_ACPI_STATUS (AE_NO_ACPI_TABLES); + } + + if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY) + { + ACPI_DEBUG_PRINT ((ACPI_DB_OK, "Already in LEGACY mode.\n")); + } + else + { + /* Transition to LEGACY mode */ + Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY); + + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not transition to LEGACY mode.")); + return_ACPI_STATUS (Status); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_OK, "Transition to LEGACY mode successful\n")); + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEnableEvent + * + * PARAMETERS: Event - The fixed event or GPE to be enabled + * Type - The type of event + * Flags - Just enable, or also wake enable? + * + * RETURN: Status + * + * DESCRIPTION: Enable an ACPI event (fixed and general purpose) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEnableEvent ( + UINT32 Event, + UINT32 Type, + UINT32 Flags) +{ + ACPI_STATUS Status = AE_OK; + UINT32 Value; + + + ACPI_FUNCTION_TRACE ("AcpiEnableEvent"); + + + /* The Type must be either Fixed Event or GPE */ + + switch (Type) + { + case ACPI_EVENT_FIXED: + + /* Decode the Fixed Event */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * Enable the requested fixed event (by writing a one to the + * enable register bit) + */ + Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId, + 1, ACPI_MTX_LOCK); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Make sure that the hardware responded */ + + Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId, + &Value, ACPI_MTX_LOCK); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + if (Value != 1) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Could not enable %s event\n", AcpiUtGetEventName (Event))); + return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); + } + break; + + + case ACPI_EVENT_GPE: + + /* Ensure that we have a valid GPE number */ + + if (AcpiEvGetGpeNumberIndex (Event) == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Enable the requested GPE number */ + + Status = AcpiHwEnableGpe (Event); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + if (Flags & ACPI_EVENT_WAKE_ENABLE) + { + AcpiHwEnableGpeForWakeup (Event); + } + break; + + + default: + + Status = AE_BAD_PARAMETER; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDisableEvent + * + * PARAMETERS: Event - The fixed event or GPE to be enabled + * Type - The type of event, fixed or general purpose + * Flags - Wake disable vs. non-wake disable + * + * RETURN: Status + * + * DESCRIPTION: Disable an ACPI event (fixed and general purpose) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDisableEvent ( + UINT32 Event, + UINT32 Type, + UINT32 Flags) +{ + ACPI_STATUS Status = AE_OK; + UINT32 Value; + + + ACPI_FUNCTION_TRACE ("AcpiDisableEvent"); + + + /* The Type must be either Fixed Event or GPE */ + + switch (Type) + { + case ACPI_EVENT_FIXED: + + /* Decode the Fixed Event */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * Disable the requested fixed event (by writing a zero to the + * enable register bit) + */ + Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId, + 0, ACPI_MTX_LOCK); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].EnableRegisterId, + &Value, ACPI_MTX_LOCK); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + if (Value != 0) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Could not disable %s events\n", AcpiUtGetEventName (Event))); + return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); + } + break; + + + case ACPI_EVENT_GPE: + + /* Ensure that we have a valid GPE number */ + + if (AcpiEvGetGpeNumberIndex (Event) == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * Only disable the requested GPE number for wake if specified. + * Otherwise, turn it totally off + */ + + if (Flags & ACPI_EVENT_WAKE_DISABLE) + { + AcpiHwDisableGpeForWakeup (Event); + } + else + { + Status = AcpiHwDisableGpe (Event); + } + break; + + + default: + Status = AE_BAD_PARAMETER; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiClearEvent + * + * PARAMETERS: Event - The fixed event or GPE to be cleared + * Type - The type of event + * + * RETURN: Status + * + * DESCRIPTION: Clear an ACPI event (fixed and general purpose) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiClearEvent ( + UINT32 Event, + UINT32 Type) +{ + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE ("AcpiClearEvent"); + + + /* The Type must be either Fixed Event or GPE */ + + switch (Type) + { + case ACPI_EVENT_FIXED: + + /* Decode the Fixed Event */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * Clear the requested fixed event (By writing a one to the + * status register bit) + */ + Status = AcpiSetRegister (AcpiGbl_FixedEventInfo[Event].StatusRegisterId, + 1, ACPI_MTX_LOCK); + break; + + + case ACPI_EVENT_GPE: + + /* Ensure that we have a valid GPE number */ + + if (AcpiEvGetGpeNumberIndex (Event) == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiHwClearGpe (Event); + break; + + + default: + + Status = AE_BAD_PARAMETER; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiGetEventStatus + * + * PARAMETERS: Event - The fixed event or GPE + * Type - The type of event + * Status - Where the current status of the event will + * be returned + * + * RETURN: Status + * + * DESCRIPTION: Obtains and returns the current status of the event + * + ******************************************************************************/ + + +ACPI_STATUS +AcpiGetEventStatus ( + UINT32 Event, + UINT32 Type, + ACPI_EVENT_STATUS *EventStatus) +{ + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE ("AcpiGetEventStatus"); + + + if (!EventStatus) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + + /* The Type must be either Fixed Event or GPE */ + + switch (Type) + { + case ACPI_EVENT_FIXED: + + /* Decode the Fixed Event */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Get the status of the requested fixed event */ + + Status = AcpiGetRegister (AcpiGbl_FixedEventInfo[Event].StatusRegisterId, + EventStatus, ACPI_MTX_LOCK); + break; + + + case ACPI_EVENT_GPE: + + /* Ensure that we have a valid GPE number */ + + if (AcpiEvGetGpeNumberIndex (Event) == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Obtain status on the requested GPE number */ + + Status = AcpiHwGetGpeStatus (Event, EventStatus); + break; + + + default: + Status = AE_BAD_PARAMETER; + } + + return_ACPI_STATUS (Status); +} + |