evxfevnt.c revision 70243
167754Smsmith/****************************************************************************** 267754Smsmith * 367754Smsmith * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable 470243Smsmith * $Revision: 27 $ 567754Smsmith * 667754Smsmith *****************************************************************************/ 767754Smsmith 867754Smsmith/****************************************************************************** 967754Smsmith * 1067754Smsmith * 1. Copyright Notice 1167754Smsmith * 1270243Smsmith * Some or all of this work - Copyright (c) 1999, 2000, Intel Corp. 1370243Smsmith * All rights reserved. 1467754Smsmith * 1567754Smsmith * 2. License 1667754Smsmith * 1767754Smsmith * 2.1. This is your license from Intel Corp. under its intellectual property 1867754Smsmith * rights. You may have additional license terms from the party that provided 1967754Smsmith * you this software, covering your right to use that party's intellectual 2067754Smsmith * property rights. 2167754Smsmith * 2267754Smsmith * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2367754Smsmith * copy of the source code appearing in this file ("Covered Code") an 2467754Smsmith * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2567754Smsmith * base code distributed originally by Intel ("Original Intel Code") to copy, 2667754Smsmith * make derivatives, distribute, use and display any portion of the Covered 2767754Smsmith * Code in any form, with the right to sublicense such rights; and 2867754Smsmith * 2967754Smsmith * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 3067754Smsmith * license (with the right to sublicense), under only those claims of Intel 3167754Smsmith * patents that are infringed by the Original Intel Code, to make, use, sell, 3267754Smsmith * offer to sell, and import the Covered Code and derivative works thereof 3367754Smsmith * solely to the minimum extent necessary to exercise the above copyright 3467754Smsmith * license, and in no event shall the patent license extend to any additions 3567754Smsmith * to or modifications of the Original Intel Code. No other license or right 3667754Smsmith * is granted directly or by implication, estoppel or otherwise; 3767754Smsmith * 3867754Smsmith * The above copyright and patent license is granted only if the following 3967754Smsmith * conditions are met: 4067754Smsmith * 4167754Smsmith * 3. Conditions 4267754Smsmith * 4367754Smsmith * 3.1. Redistribution of Source with Rights to Further Distribute Source. 4467754Smsmith * Redistribution of source code of any substantial prton of the Covered 4567754Smsmith * Code or modification with rights to further distribute source must include 4667754Smsmith * the above Copyright Notice, the above License, this list of Conditions, 4767754Smsmith * and the following Disclaimer and Export Compliance provision. In addition, 4867754Smsmith * Licensee must cause all Covered Code to which Licensee contributes to 4967754Smsmith * contain a file documenting the changes Licensee made to create that Covered 5067754Smsmith * Code and the date of any change. Licensee must include in that file the 5167754Smsmith * documentation of any changes made by any predecessor Licensee. Licensee 5267754Smsmith * must include a prominent statement that the modification is derived, 5367754Smsmith * directly or indirectly, from Original Intel Code. 5467754Smsmith * 5567754Smsmith * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 5667754Smsmith * Redistribution of source code of any substantial portion of the Covered 5767754Smsmith * Code or modification without rights to further distribute source must 5867754Smsmith * include the following Disclaimer and Export Compliance provision in the 5967754Smsmith * documentation and/or other materials provided with distribution. In 6067754Smsmith * addition, Licensee may not authorize further sublicense of source of any 6167754Smsmith * portion of the Covered Code, and must include terms to the effect that the 6267754Smsmith * license from Licensee to its licensee is limited to the intellectual 6367754Smsmith * property embodied in the software Licensee provides to its licensee, and 6467754Smsmith * not to intellectual property embodied in modifications its licensee may 6567754Smsmith * make. 6667754Smsmith * 6767754Smsmith * 3.3. Redistribution of Executable. Redistribution in executable form of any 6867754Smsmith * substantial portion of the Covered Code or modification must reproduce the 6967754Smsmith * above Copyright Notice, and the following Disclaimer and Export Compliance 7067754Smsmith * provision in the documentation and/or other materials provided with the 7167754Smsmith * distribution. 7267754Smsmith * 7367754Smsmith * 3.4. Intel retains all right, title, and interest in and to the Original 7467754Smsmith * Intel Code. 7567754Smsmith * 7667754Smsmith * 3.5. Neither the name Intel nor any other trademark owned or controlled by 7767754Smsmith * Intel shall be used in advertising or otherwise to promote the sale, use or 7867754Smsmith * other dealings in products derived from or relating to the Covered Code 7967754Smsmith * without prior written authorization from Intel. 8067754Smsmith * 8167754Smsmith * 4. Disclaimer and Export Compliance 8267754Smsmith * 8367754Smsmith * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 8467754Smsmith * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 8567754Smsmith * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 8667754Smsmith * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 8767754Smsmith * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 8867754Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 8967754Smsmith * PARTICULAR PURPOSE. 9067754Smsmith * 9167754Smsmith * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 9267754Smsmith * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 9367754Smsmith * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 9467754Smsmith * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 9567754Smsmith * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 9667754Smsmith * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 9767754Smsmith * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 9867754Smsmith * LIMITED REMEDY. 9967754Smsmith * 10067754Smsmith * 4.3. Licensee shall not export, either directly or indirectly, any of this 10167754Smsmith * software or system incorporating such software without first obtaining any 10267754Smsmith * required license or other approval from the U. S. Department of Commerce or 10367754Smsmith * any other agency or department of the United States Government. In the 10467754Smsmith * event Licensee exports any such software from the United States or 10567754Smsmith * re-exports any such software from a foreign destination, Licensee shall 10667754Smsmith * ensure that the distribution and export/re-export of the software is in 10767754Smsmith * compliance with all laws, regulations, orders, or other restrictions of the 10867754Smsmith * U.S. Export Administration Regulations. Licensee agrees that neither it nor 10967754Smsmith * any of its subsidiaries will export/re-export any technical data, process, 11067754Smsmith * software, or service, directly or indirectly, to any country for which the 11167754Smsmith * United States government or any agency thereof requires an export license, 11267754Smsmith * other governmental approval, or letter of assurance, without first obtaining 11367754Smsmith * such license, approval or letter. 11467754Smsmith * 11567754Smsmith *****************************************************************************/ 11667754Smsmith 11767754Smsmith 11867754Smsmith#define __EVXFEVNT_C__ 11967754Smsmith 12067754Smsmith#include "acpi.h" 12167754Smsmith#include "achware.h" 12267754Smsmith#include "acnamesp.h" 12367754Smsmith#include "acevents.h" 12467754Smsmith#include "amlcode.h" 12567754Smsmith#include "acinterp.h" 12667754Smsmith 12767754Smsmith#define _COMPONENT EVENT_HANDLING 12867754Smsmith MODULE_NAME ("evxfevnt") 12967754Smsmith 13067754Smsmith 13167754Smsmith/************************************************************************** 13267754Smsmith * 13367754Smsmith * FUNCTION: AcpiEnable 13467754Smsmith * 13567754Smsmith * PARAMETERS: None 13667754Smsmith * 13767754Smsmith * RETURN: Status 13867754Smsmith * 13967754Smsmith * DESCRIPTION: Transfers the system into ACPI mode. 14067754Smsmith * 14167754Smsmith *************************************************************************/ 14267754Smsmith 14367754SmsmithACPI_STATUS 14467754SmsmithAcpiEnable (void) 14567754Smsmith{ 14667754Smsmith ACPI_STATUS Status; 14767754Smsmith 14867754Smsmith 14967754Smsmith FUNCTION_TRACE ("AcpiEnable"); 15067754Smsmith 15167754Smsmith 15267754Smsmith /* Make sure we've got ACPI tables */ 15367754Smsmith 15467754Smsmith if (!AcpiGbl_DSDT) 15567754Smsmith { 15667754Smsmith DEBUG_PRINT (ACPI_WARN, ("No ACPI tables present!\n")); 15767754Smsmith return_ACPI_STATUS (AE_NO_ACPI_TABLES); 15867754Smsmith } 15967754Smsmith 16067754Smsmith /* Make sure the BIOS supports ACPI mode */ 16167754Smsmith 16267754Smsmith if (SYS_MODE_LEGACY == AcpiHwGetModeCapabilities()) 16367754Smsmith { 16467754Smsmith DEBUG_PRINT (ACPI_WARN, 16567754Smsmith ("AcpiEnable: Only legacy mode supported!\n")); 16667754Smsmith return_ACPI_STATUS (AE_ERROR); 16767754Smsmith } 16867754Smsmith 16967754Smsmith /* Transition to ACPI mode */ 17067754Smsmith 17167754Smsmith Status = AcpiHwSetMode (SYS_MODE_ACPI); 17267754Smsmith if (ACPI_FAILURE (Status)) 17367754Smsmith { 17467754Smsmith DEBUG_PRINT (ACPI_FATAL, ("Could not transition to ACPI mode.\n")); 17567754Smsmith return_ACPI_STATUS (Status); 17667754Smsmith } 17767754Smsmith 17867754Smsmith DEBUG_PRINT (ACPI_OK, ("Transition to ACPI mode successful\n")); 17967754Smsmith 18067754Smsmith return_ACPI_STATUS (Status); 18167754Smsmith} 18267754Smsmith 18367754Smsmith 18467754Smsmith/************************************************************************** 18567754Smsmith * 18667754Smsmith * FUNCTION: AcpiDisable 18767754Smsmith * 18867754Smsmith * PARAMETERS: None 18967754Smsmith * 19067754Smsmith * RETURN: Status 19167754Smsmith * 19267754Smsmith * DESCRIPTION: Returns the system to original ACPI/legacy mode, and 19367754Smsmith * uninstalls the SCI interrupt handler. 19467754Smsmith * 19567754Smsmith *************************************************************************/ 19667754Smsmith 19767754SmsmithACPI_STATUS 19867754SmsmithAcpiDisable (void) 19967754Smsmith{ 20067754Smsmith ACPI_STATUS Status; 20167754Smsmith 20267754Smsmith 20367754Smsmith FUNCTION_TRACE ("AcpiDisable"); 20467754Smsmith 20567754Smsmith 20667754Smsmith /* Restore original mode */ 20767754Smsmith 20867754Smsmith Status = AcpiHwSetMode (AcpiGbl_OriginalMode); 20967754Smsmith if (ACPI_FAILURE (Status)) 21067754Smsmith { 21167754Smsmith DEBUG_PRINT (ACPI_ERROR, ("Unable to transition to original mode")); 21267754Smsmith return_ACPI_STATUS (Status); 21367754Smsmith } 21467754Smsmith 21567754Smsmith /* Unload the SCI interrupt handler */ 21667754Smsmith 21767754Smsmith AcpiEvRemoveSciHandler (); 21867754Smsmith AcpiEvRestoreAcpiState (); 21967754Smsmith 22067754Smsmith return_ACPI_STATUS (Status); 22167754Smsmith} 22267754Smsmith 22367754Smsmith 22467754Smsmith/****************************************************************************** 22567754Smsmith * 22667754Smsmith * FUNCTION: AcpiEnableEvent 22767754Smsmith * 22867754Smsmith * PARAMETERS: Event - The fixed event or GPE to be enabled 22967754Smsmith * Type - The type of event 23067754Smsmith * 23167754Smsmith * RETURN: Status 23267754Smsmith * 23367754Smsmith * DESCRIPTION: Enable an ACPI event (fixed and general purpose) 23467754Smsmith * 23567754Smsmith ******************************************************************************/ 23667754Smsmith 23767754SmsmithACPI_STATUS 23867754SmsmithAcpiEnableEvent ( 23967754Smsmith UINT32 Event, 24067754Smsmith UINT32 Type) 24167754Smsmith{ 24267754Smsmith ACPI_STATUS Status = AE_OK; 24367754Smsmith UINT32 RegisterId; 24467754Smsmith 24567754Smsmith 24667754Smsmith FUNCTION_TRACE ("AcpiEnableEvent"); 24767754Smsmith 24867754Smsmith 24967754Smsmith /* The Type must be either Fixed AcpiEvent or GPE */ 25067754Smsmith 25167754Smsmith switch (Type) 25267754Smsmith { 25367754Smsmith 25467754Smsmith case ACPI_EVENT_FIXED: 25567754Smsmith 25667754Smsmith /* Decode the Fixed AcpiEvent */ 25767754Smsmith 25867754Smsmith switch (Event) 25967754Smsmith { 26067754Smsmith case ACPI_EVENT_PMTIMER: 26167754Smsmith RegisterId = TMR_EN; 26267754Smsmith break; 26367754Smsmith 26467754Smsmith case ACPI_EVENT_GLOBAL: 26567754Smsmith RegisterId = GBL_EN; 26667754Smsmith break; 26767754Smsmith 26867754Smsmith case ACPI_EVENT_POWER_BUTTON: 26967754Smsmith RegisterId = PWRBTN_EN; 27067754Smsmith break; 27167754Smsmith 27267754Smsmith case ACPI_EVENT_SLEEP_BUTTON: 27367754Smsmith RegisterId = SLPBTN_EN; 27467754Smsmith break; 27567754Smsmith 27667754Smsmith case ACPI_EVENT_RTC: 27767754Smsmith RegisterId = RTC_EN; 27867754Smsmith break; 27967754Smsmith 28067754Smsmith default: 28167754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 28267754Smsmith break; 28367754Smsmith } 28467754Smsmith 28567754Smsmith /* 28667754Smsmith * Enable the requested fixed event (by writing a one to the 28767754Smsmith * enable register bit) 28867754Smsmith */ 28967754Smsmith 29069450Smsmith AcpiHwRegisterBitAccess (ACPI_WRITE, ACPI_MTX_LOCK, RegisterId, 1); 29169450Smsmith 29269450Smsmith if (1 != AcpiHwRegisterBitAccess(ACPI_READ, ACPI_MTX_LOCK, RegisterId)) 29369450Smsmith { 29469450Smsmith DEBUG_PRINT(ACPI_ERROR, ("Fixed event bit clear when it should be set,\n")); 29569450Smsmith return_ACPI_STATUS (AE_ERROR); 29669450Smsmith } 29769450Smsmith 29867754Smsmith break; 29967754Smsmith 30067754Smsmith 30167754Smsmith case ACPI_EVENT_GPE: 30267754Smsmith 30367754Smsmith /* Ensure that we have a valid GPE number */ 30467754Smsmith 30567754Smsmith if ((Event >= NUM_GPE) || 30667754Smsmith (AcpiGbl_GpeValid[Event] == ACPI_GPE_INVALID)) 30767754Smsmith { 30867754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 30967754Smsmith } 31067754Smsmith 31167754Smsmith 31267754Smsmith /* Enable the requested GPE number */ 31367754Smsmith 31467754Smsmith AcpiHwEnableGpe (Event); 31567754Smsmith break; 31667754Smsmith 31767754Smsmith 31867754Smsmith default: 31967754Smsmith 32067754Smsmith Status = AE_BAD_PARAMETER; 32167754Smsmith } 32267754Smsmith 32367754Smsmith 32467754Smsmith return_ACPI_STATUS (Status); 32567754Smsmith} 32667754Smsmith 32767754Smsmith 32867754Smsmith/****************************************************************************** 32967754Smsmith * 33067754Smsmith * FUNCTION: AcpiDisableEvent 33167754Smsmith * 33267754Smsmith * PARAMETERS: Event - The fixed event or GPE to be enabled 33367754Smsmith * Type - The type of event 33467754Smsmith * 33567754Smsmith * RETURN: Status 33667754Smsmith * 33767754Smsmith * DESCRIPTION: Disable an ACPI event (fixed and general purpose) 33867754Smsmith * 33967754Smsmith ******************************************************************************/ 34067754Smsmith 34167754SmsmithACPI_STATUS 34267754SmsmithAcpiDisableEvent ( 34367754Smsmith UINT32 Event, 34467754Smsmith UINT32 Type) 34567754Smsmith{ 34667754Smsmith ACPI_STATUS Status = AE_OK; 34767754Smsmith UINT32 RegisterId; 34867754Smsmith 34967754Smsmith 35067754Smsmith FUNCTION_TRACE ("AcpiDisableEvent"); 35167754Smsmith 35267754Smsmith 35367754Smsmith /* The Type must be either Fixed AcpiEvent or GPE */ 35467754Smsmith 35567754Smsmith switch (Type) 35667754Smsmith { 35767754Smsmith 35867754Smsmith case ACPI_EVENT_FIXED: 35967754Smsmith 36067754Smsmith /* Decode the Fixed AcpiEvent */ 36167754Smsmith 36267754Smsmith switch (Event) 36367754Smsmith { 36467754Smsmith case ACPI_EVENT_PMTIMER: 36567754Smsmith RegisterId = TMR_EN; 36667754Smsmith break; 36767754Smsmith 36867754Smsmith case ACPI_EVENT_GLOBAL: 36967754Smsmith RegisterId = GBL_EN; 37067754Smsmith break; 37167754Smsmith 37267754Smsmith case ACPI_EVENT_POWER_BUTTON: 37367754Smsmith RegisterId = PWRBTN_EN; 37467754Smsmith break; 37567754Smsmith 37667754Smsmith case ACPI_EVENT_SLEEP_BUTTON: 37767754Smsmith RegisterId = SLPBTN_EN; 37867754Smsmith break; 37967754Smsmith 38067754Smsmith case ACPI_EVENT_RTC: 38167754Smsmith RegisterId = RTC_EN; 38267754Smsmith break; 38367754Smsmith 38467754Smsmith default: 38567754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 38667754Smsmith break; 38767754Smsmith } 38867754Smsmith 38967754Smsmith /* 39067754Smsmith * Disable the requested fixed event (by writing a zero to the 39167754Smsmith * enable register bit) 39267754Smsmith */ 39367754Smsmith 39469450Smsmith AcpiHwRegisterBitAccess (ACPI_WRITE, ACPI_MTX_LOCK, RegisterId, 0); 39569450Smsmith 39669450Smsmith if (0 != AcpiHwRegisterBitAccess(ACPI_READ, ACPI_MTX_LOCK, RegisterId)) 39769450Smsmith { 39869450Smsmith DEBUG_PRINT(ACPI_ERROR, ("Fixed event bit set when it should be clear,\n")); 39969450Smsmith return_ACPI_STATUS (AE_ERROR); 40069450Smsmith } 40169450Smsmith 40267754Smsmith break; 40367754Smsmith 40467754Smsmith 40567754Smsmith case ACPI_EVENT_GPE: 40667754Smsmith 40767754Smsmith /* Ensure that we have a valid GPE number */ 40867754Smsmith 40967754Smsmith if ((Event >= NUM_GPE) || 41067754Smsmith (AcpiGbl_GpeValid[Event] == ACPI_GPE_INVALID)) 41167754Smsmith { 41267754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 41367754Smsmith } 41467754Smsmith 41567754Smsmith /* Disable the requested GPE number */ 41667754Smsmith 41767754Smsmith AcpiHwDisableGpe (Event); 41867754Smsmith break; 41967754Smsmith 42067754Smsmith 42167754Smsmith default: 42267754Smsmith Status = AE_BAD_PARAMETER; 42367754Smsmith } 42467754Smsmith 42567754Smsmith return_ACPI_STATUS (Status); 42667754Smsmith} 42767754Smsmith 42867754Smsmith 42967754Smsmith/****************************************************************************** 43067754Smsmith * 43167754Smsmith * FUNCTION: AcpiClearEvent 43267754Smsmith * 43367754Smsmith * PARAMETERS: Event - The fixed event or GPE to be cleared 43467754Smsmith * Type - The type of event 43567754Smsmith * 43667754Smsmith * RETURN: Status 43767754Smsmith * 43867754Smsmith * DESCRIPTION: Clear an ACPI event (fixed and general purpose) 43967754Smsmith * 44067754Smsmith ******************************************************************************/ 44167754Smsmith 44267754SmsmithACPI_STATUS 44367754SmsmithAcpiClearEvent ( 44467754Smsmith UINT32 Event, 44567754Smsmith UINT32 Type) 44667754Smsmith{ 44767754Smsmith ACPI_STATUS Status = AE_OK; 44867754Smsmith UINT32 RegisterId; 44967754Smsmith 45067754Smsmith 45167754Smsmith FUNCTION_TRACE ("AcpiClearEvent"); 45267754Smsmith 45367754Smsmith 45467754Smsmith /* The Type must be either Fixed AcpiEvent or GPE */ 45567754Smsmith 45667754Smsmith switch (Type) 45767754Smsmith { 45867754Smsmith 45967754Smsmith case ACPI_EVENT_FIXED: 46067754Smsmith 46167754Smsmith /* Decode the Fixed AcpiEvent */ 46267754Smsmith 46367754Smsmith switch (Event) 46467754Smsmith { 46567754Smsmith case ACPI_EVENT_PMTIMER: 46667754Smsmith RegisterId = TMR_STS; 46767754Smsmith break; 46867754Smsmith 46967754Smsmith case ACPI_EVENT_GLOBAL: 47067754Smsmith RegisterId = GBL_STS; 47167754Smsmith break; 47267754Smsmith 47367754Smsmith case ACPI_EVENT_POWER_BUTTON: 47467754Smsmith RegisterId = PWRBTN_STS; 47567754Smsmith break; 47667754Smsmith 47767754Smsmith case ACPI_EVENT_SLEEP_BUTTON: 47867754Smsmith RegisterId = SLPBTN_STS; 47967754Smsmith break; 48067754Smsmith 48167754Smsmith case ACPI_EVENT_RTC: 48267754Smsmith RegisterId = RTC_STS; 48367754Smsmith break; 48467754Smsmith 48567754Smsmith default: 48667754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 48767754Smsmith break; 48867754Smsmith } 48967754Smsmith 49067754Smsmith /* 49167754Smsmith * Clear the requested fixed event (By writing a one to the 49267754Smsmith * status register bit) 49367754Smsmith */ 49467754Smsmith 49569450Smsmith AcpiHwRegisterBitAccess (ACPI_WRITE, ACPI_MTX_LOCK, RegisterId, 1); 49667754Smsmith break; 49767754Smsmith 49867754Smsmith 49967754Smsmith case ACPI_EVENT_GPE: 50067754Smsmith 50167754Smsmith /* Ensure that we have a valid GPE number */ 50267754Smsmith 50367754Smsmith if ((Event >= NUM_GPE) || 50467754Smsmith (AcpiGbl_GpeValid[Event] == ACPI_GPE_INVALID)) 50567754Smsmith { 50667754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 50767754Smsmith } 50867754Smsmith 50967754Smsmith 51067754Smsmith AcpiHwClearGpe (Event); 51167754Smsmith break; 51267754Smsmith 51367754Smsmith 51467754Smsmith default: 51567754Smsmith 51667754Smsmith Status = AE_BAD_PARAMETER; 51767754Smsmith } 51867754Smsmith 51967754Smsmith return_ACPI_STATUS (Status); 52067754Smsmith} 52167754Smsmith 52267754Smsmith 52367754Smsmith/****************************************************************************** 52467754Smsmith * 52567754Smsmith * FUNCTION: AcpiGetEventStatus 52667754Smsmith * 52767754Smsmith * PARAMETERS: Event - The fixed event or GPE 52867754Smsmith * Type - The type of event 52967754Smsmith * Status - Where the current status of the event will 53067754Smsmith * be returned 53167754Smsmith * 53267754Smsmith * RETURN: Status 53367754Smsmith * 53467754Smsmith * DESCRIPTION: Obtains and returns the current status of the event 53567754Smsmith * 53667754Smsmith ******************************************************************************/ 53767754Smsmith 53867754Smsmith 53967754SmsmithACPI_STATUS 54067754SmsmithAcpiGetEventStatus ( 54167754Smsmith UINT32 Event, 54267754Smsmith UINT32 Type, 54367754Smsmith ACPI_EVENT_STATUS *EventStatus) 54467754Smsmith{ 54567754Smsmith ACPI_STATUS Status = AE_OK; 54667754Smsmith UINT32 RegisterId; 54767754Smsmith 54867754Smsmith 54967754Smsmith FUNCTION_TRACE ("AcpiGetEventStatus"); 55067754Smsmith 55167754Smsmith 55267754Smsmith if (!EventStatus) 55367754Smsmith { 55467754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 55567754Smsmith } 55667754Smsmith 55767754Smsmith 55867754Smsmith /* The Type must be either Fixed AcpiEvent or GPE */ 55967754Smsmith 56067754Smsmith switch (Type) 56167754Smsmith { 56267754Smsmith 56367754Smsmith case ACPI_EVENT_FIXED: 56467754Smsmith 56567754Smsmith /* Decode the Fixed AcpiEvent */ 56667754Smsmith 56767754Smsmith switch (Event) 56867754Smsmith { 56967754Smsmith case ACPI_EVENT_PMTIMER: 57067754Smsmith RegisterId = TMR_STS; 57167754Smsmith break; 57267754Smsmith 57367754Smsmith case ACPI_EVENT_GLOBAL: 57467754Smsmith RegisterId = GBL_STS; 57567754Smsmith break; 57667754Smsmith 57767754Smsmith case ACPI_EVENT_POWER_BUTTON: 57867754Smsmith RegisterId = PWRBTN_STS; 57967754Smsmith break; 58067754Smsmith 58167754Smsmith case ACPI_EVENT_SLEEP_BUTTON: 58267754Smsmith RegisterId = SLPBTN_STS; 58367754Smsmith break; 58467754Smsmith 58567754Smsmith case ACPI_EVENT_RTC: 58667754Smsmith RegisterId = RTC_STS; 58767754Smsmith break; 58867754Smsmith 58967754Smsmith default: 59067754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 59167754Smsmith break; 59267754Smsmith } 59367754Smsmith 59467754Smsmith /* Get the status of the requested fixed event */ 59567754Smsmith 59669450Smsmith *EventStatus = AcpiHwRegisterBitAccess (ACPI_READ, ACPI_MTX_LOCK, RegisterId); 59767754Smsmith break; 59867754Smsmith 59967754Smsmith 60067754Smsmith case ACPI_EVENT_GPE: 60167754Smsmith 60267754Smsmith /* Ensure that we have a valid GPE number */ 60367754Smsmith 60467754Smsmith if ((Event >= NUM_GPE) || 60567754Smsmith (AcpiGbl_GpeValid[Event] == ACPI_GPE_INVALID)) 60667754Smsmith { 60767754Smsmith return_ACPI_STATUS (AE_BAD_PARAMETER); 60867754Smsmith } 60967754Smsmith 61067754Smsmith 61167754Smsmith /* Obtain status on the requested GPE number */ 61267754Smsmith 61367754Smsmith AcpiHwGetGpeStatus (Event, EventStatus); 61467754Smsmith break; 61567754Smsmith 61667754Smsmith 61767754Smsmith default: 61867754Smsmith Status = AE_BAD_PARAMETER; 61967754Smsmith } 62067754Smsmith 62167754Smsmith 62267754Smsmith return_ACPI_STATUS (Status); 62367754Smsmith} 62467754Smsmith 625