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Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Events/evmisc.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Events/evmisc.c | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Events/evmisc.c b/sys/contrib/dev/acpica/Subsystem/Events/evmisc.c deleted file mode 100644 index 516774e2361aa..0000000000000 --- a/sys/contrib/dev/acpica/Subsystem/Events/evmisc.c +++ /dev/null @@ -1,486 +0,0 @@ -/****************************************************************************** - * - * Module Name: evmisc - ACPI device notification handler dispatch - * and ACPI Global Lock support - * $Revision: 22 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 "acevents.h" -#include "acnamesp.h" -#include "acinterp.h" -#include "achware.h" - -#define _COMPONENT EVENT_HANDLING - MODULE_NAME ("evmisc") - - -/************************************************************************** - * - * FUNCTION: AcpiEvNotifyDispatch - * - * PARAMETERS: - * - * RETURN: None. - * - * DESCRIPTION: Dispatch a device notification event to a previously - * installed handler. - * - *************************************************************************/ - -void -AcpiEvNotifyDispatch ( - ACPI_HANDLE Device, - UINT32 NotifyValue) -{ - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_OPERAND_OBJECT *HandlerObj; - NOTIFY_HANDLER Handler; - - - /* - * For value 1 (Ejection Request), some device method may need to be run. - * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need to be run. - * For value 0x80 (Status Change) on the power button or sleep button, - * initiate soft-off or sleep operation? - */ - - - DEBUG_PRINT (ACPI_INFO, - ("Dispatching Notify(%X) on device %p\n", NotifyValue, Device)); - - switch (NotifyValue) - { - case 0: - DEBUG_PRINT (ACPI_INFO, ("Notify value: Re-enumerate Devices\n")); - break; - - case 1: - DEBUG_PRINT (ACPI_INFO, ("Notify value: Ejection Request\n")); - break; - - case 2: - DEBUG_PRINT (ACPI_INFO, ("Notify value: Device Wake\n")); - break; - - case 0x80: - DEBUG_PRINT (ACPI_INFO, ("Notify value: Status Change\n")); - break; - - default: - DEBUG_PRINT (ACPI_INFO, ("Unknown Notify Value: %lx \n", NotifyValue)); - break; - } - - - /* - * Invoke a global notify handler if installed. - * This is done _before_ we invoke the per-device handler attached to the device. - */ - - if (NotifyValue <= MAX_SYS_NOTIFY) - { - /* Global system notification handler */ - - if (AcpiGbl_SysNotify.Handler) - { - AcpiGbl_SysNotify.Handler (Device, NotifyValue, - AcpiGbl_SysNotify.Context); - } - } - - else - { - /* Global driver notification handler */ - - if (AcpiGbl_DrvNotify.Handler) - { - AcpiGbl_DrvNotify.Handler (Device, NotifyValue, - AcpiGbl_DrvNotify.Context); - } - } - - - /* - * Get the notify object which must be attached to the device Node - */ - - ObjDesc = AcpiNsGetAttachedObject ((ACPI_HANDLE) Device); - if (!ObjDesc) - { - /* There can be no notify handler for this device */ - - DEBUG_PRINT (ACPI_INFO, - ("No notify handler for device %p \n", Device)); - return; - } - - - /* We have the notify object, Get the right handler */ - - if (NotifyValue <= MAX_SYS_NOTIFY) - { - HandlerObj = ObjDesc->Device.SysHandler; - } - else - { - HandlerObj = ObjDesc->Device.DrvHandler; - } - - /* Validate the handler */ - - if (!HandlerObj) - { - /* There is no notify handler for this device */ - - DEBUG_PRINT (ACPI_INFO, - ("No notify handler for device %p \n", Device)); - return; - } - - /* There is a handler, invoke it */ - - Handler = HandlerObj->NotifyHandler.Handler; - Handler (Device, NotifyValue, HandlerObj->NotifyHandler.Context); - -} - - -/*************************************************************************** - * - * FUNCTION: AcpiEvGlobalLockThread - * - * RETURN: None - * - * DESCRIPTION: Invoked by SCI interrupt handler upon acquisition of the - * Global Lock. Simply signal all threads that are waiting - * for the lock. - * - **************************************************************************/ - -static void -AcpiEvGlobalLockThread ( - void *Context) -{ - - /* Signal threads that are waiting for the lock */ - - if (AcpiGbl_GlobalLockThreadCount) - { - /* Send sufficient units to the semaphore */ - - AcpiOsSignalSemaphore (AcpiGbl_GlobalLockSemaphore, - AcpiGbl_GlobalLockThreadCount); - } -} - - -/*************************************************************************** - * - * FUNCTION: AcpiEvGlobalLockHandler - * - * RETURN: Status - * - * DESCRIPTION: Invoked directly from the SCI handler when a global lock - * release interrupt occurs. Grab the global lock and queue - * the global lock thread for execution - * - **************************************************************************/ - -static UINT32 -AcpiEvGlobalLockHandler ( - void *Context) -{ - BOOLEAN Acquired = FALSE; - void *GlobalLock; - - - /* - * Attempt to get the lock - * If we don't get it now, it will be marked pending and we will - * take another interrupt when it becomes free. - */ - - GlobalLock = AcpiGbl_FACS->GlobalLock; - ACPI_ACQUIRE_GLOBAL_LOCK (GlobalLock, Acquired); - if (Acquired) - { - /* Got the lock, now wake all threads waiting for it */ - - AcpiGbl_GlobalLockAcquired = TRUE; - - /* Run the Global Lock thread which will signal all waiting threads */ - - AcpiOsQueueForExecution (OSD_PRIORITY_HIGH, AcpiEvGlobalLockThread, - Context); - } - - return (INTERRUPT_HANDLED); -} - - -/*************************************************************************** - * - * FUNCTION: AcpiEvInitGlobalLockHandler - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for the global lock release event - * - **************************************************************************/ - -ACPI_STATUS -AcpiEvInitGlobalLockHandler (void) -{ - ACPI_STATUS Status; - - - FUNCTION_TRACE ("EvInitGlobalLockHandler"); - - - Status = AcpiInstallFixedEventHandler (ACPI_EVENT_GLOBAL, - AcpiEvGlobalLockHandler, NULL); - - return_ACPI_STATUS (Status); -} - - -/*************************************************************************** - * - * FUNCTION: AcpiEvAcquireGlobalLock - * - * RETURN: Status - * - * DESCRIPTION: Attempt to gain ownership of the Global Lock. - * - **************************************************************************/ - -ACPI_STATUS -AcpiEvAcquireGlobalLock(void) -{ - ACPI_STATUS Status = AE_OK; - BOOLEAN Acquired = FALSE; - void *GlobalLock; - - - FUNCTION_TRACE ("EvAcquireGlobalLock"); - - - /* One more thread wants the global lock */ - - AcpiGbl_GlobalLockThreadCount++; - - - /* If we (OS side) have the hardware lock already, we are done */ - - if (AcpiGbl_GlobalLockAcquired) - { - return_ACPI_STATUS (AE_OK); - } - - /* Only if the FACS is valid */ - - if (!AcpiGbl_FACS) - { - return_ACPI_STATUS (AE_OK); - } - - - /* We must acquire the actual hardware lock */ - - GlobalLock = AcpiGbl_FACS->GlobalLock; - ACPI_ACQUIRE_GLOBAL_LOCK (GlobalLock, Acquired); - if (Acquired) - { - /* We got the lock */ - - DEBUG_PRINT (ACPI_INFO, ("Acquired the HW Global Lock\n")); - - AcpiGbl_GlobalLockAcquired = TRUE; - - return_ACPI_STATUS (AE_OK); - } - - - /* - * Did not get the lock. The pending bit was set above, and we must now - * wait until we get the global lock released interrupt. - */ - - DEBUG_PRINT (ACPI_INFO, ("Waiting for the HW Global Lock\n")); - - /* - * Acquire the global lock semaphore first. - * Since this wait will block, we must release the interpreter - */ - - Status = AcpiAmlSystemWaitSemaphore (AcpiGbl_GlobalLockSemaphore, - ACPI_UINT32_MAX); - - return_ACPI_STATUS (Status); -} - - -/*************************************************************************** - * - * FUNCTION: AcpiEvReleaseGlobalLock - * - * DESCRIPTION: Releases ownership of the Global Lock. - * - **************************************************************************/ - -void -AcpiEvReleaseGlobalLock (void) -{ - BOOLEAN Pending = FALSE; - void *GlobalLock; - - - FUNCTION_TRACE ("EvReleaseGlobalLock"); - - if (!AcpiGbl_GlobalLockThreadCount) - { - REPORT_WARNING(("Releasing a non-acquired Global Lock\n")); - return_VOID; - } - - /* One fewer thread has the global lock */ - - AcpiGbl_GlobalLockThreadCount--; - - /* Have all threads released the lock? */ - - if (!AcpiGbl_GlobalLockThreadCount) - { - /* - * No more threads holding lock, we can do the actual hardware - * release - */ - - GlobalLock = AcpiGbl_FACS->GlobalLock; - ACPI_RELEASE_GLOBAL_LOCK (GlobalLock, Pending); - AcpiGbl_GlobalLockAcquired = FALSE; - - /* - * If the pending bit was set, we must write GBL_RLS to the control - * register - */ - if (Pending) - { - AcpiHwRegisterBitAccess (ACPI_WRITE, ACPI_MTX_LOCK, - GBL_RLS, 1); - } - } - - return_VOID; -} |