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Diffstat (limited to 'sys/contrib/dev/acpica/evmisc.c')
| -rw-r--r-- | sys/contrib/dev/acpica/evmisc.c | 763 |
1 files changed, 0 insertions, 763 deletions
diff --git a/sys/contrib/dev/acpica/evmisc.c b/sys/contrib/dev/acpica/evmisc.c deleted file mode 100644 index 7000543..0000000 --- a/sys/contrib/dev/acpica/evmisc.c +++ /dev/null @@ -1,763 +0,0 @@ -/****************************************************************************** - * - * Module Name: evmisc - Miscellaneous event manager support functions - * $Revision: 1.103 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2007, 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 <contrib/dev/acpica/acpi.h> -#include <contrib/dev/acpica/acevents.h> -#include <contrib/dev/acpica/acnamesp.h> -#include <contrib/dev/acpica/acinterp.h> - -#define _COMPONENT ACPI_EVENTS - ACPI_MODULE_NAME ("evmisc") - - -/* Names for Notify() values, used for debug output */ - -#ifdef ACPI_DEBUG_OUTPUT -static const char *AcpiNotifyValueNames[] = -{ - "Bus Check", - "Device Check", - "Device Wake", - "Eject Request", - "Device Check Light", - "Frequency Mismatch", - "Bus Mode Mismatch", - "Power Fault" -}; -#endif - -/* Pointer to FACS needed for the Global Lock */ - -static ACPI_TABLE_FACS *Facs = NULL; - -/* Local prototypes */ - -static void ACPI_SYSTEM_XFACE -AcpiEvNotifyDispatch ( - void *Context); - -static UINT32 -AcpiEvGlobalLockHandler ( - void *Context); - -static ACPI_STATUS -AcpiEvRemoveGlobalLockHandler ( - void); - - -/******************************************************************************* - * - * FUNCTION: AcpiEvIsNotifyObject - * - * PARAMETERS: Node - Node to check - * - * RETURN: TRUE if notifies allowed on this object - * - * DESCRIPTION: Check type of node for a object that supports notifies. - * - * TBD: This could be replaced by a flag bit in the node. - * - ******************************************************************************/ - -BOOLEAN -AcpiEvIsNotifyObject ( - ACPI_NAMESPACE_NODE *Node) -{ - switch (Node->Type) - { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_POWER: - case ACPI_TYPE_THERMAL: - /* - * These are the ONLY objects that can receive ACPI notifications - */ - return (TRUE); - - default: - return (FALSE); - } -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvQueueNotifyRequest - * - * PARAMETERS: Node - NS node for the notified object - * NotifyValue - Value from the Notify() request - * - * RETURN: Status - * - * DESCRIPTION: Dispatch a device notification event to a previously - * installed handler. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvQueueNotifyRequest ( - ACPI_NAMESPACE_NODE *Node, - UINT32 NotifyValue) -{ - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_OPERAND_OBJECT *HandlerObj = NULL; - ACPI_GENERIC_STATE *NotifyInfo; - ACPI_STATUS Status = AE_OK; - - - ACPI_FUNCTION_NAME (EvQueueNotifyRequest); - - - /* - * For value 3 (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? - */ - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Dispatching Notify(%X) on node %p\n", NotifyValue, Node)); - - if (NotifyValue <= 7) - { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Notify value: %s\n", - AcpiNotifyValueNames[NotifyValue])); - } - else - { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Notify value: 0x%2.2X **Device Specific**\n", - NotifyValue)); - } - - /* Get the notify object attached to the NS Node */ - - ObjDesc = AcpiNsGetAttachedObject (Node); - if (ObjDesc) - { - /* We have the notify object, Get the right handler */ - - switch (Node->Type) - { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_THERMAL: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_POWER: - - if (NotifyValue <= ACPI_MAX_SYS_NOTIFY) - { - HandlerObj = ObjDesc->CommonNotify.SystemNotify; - } - else - { - HandlerObj = ObjDesc->CommonNotify.DeviceNotify; - } - break; - - default: - /* All other types are not supported */ - return (AE_TYPE); - } - } - - /* If there is any handler to run, schedule the dispatcher */ - - if ((AcpiGbl_SystemNotify.Handler && (NotifyValue <= ACPI_MAX_SYS_NOTIFY)) || - (AcpiGbl_DeviceNotify.Handler && (NotifyValue > ACPI_MAX_SYS_NOTIFY)) || - HandlerObj) - { - NotifyInfo = AcpiUtCreateGenericState (); - if (!NotifyInfo) - { - return (AE_NO_MEMORY); - } - - NotifyInfo->Common.DescriptorType = ACPI_DESC_TYPE_STATE_NOTIFY; - NotifyInfo->Notify.Node = Node; - NotifyInfo->Notify.Value = (UINT16) NotifyValue; - NotifyInfo->Notify.HandlerObj = HandlerObj; - - Status = AcpiOsExecute ( - OSL_NOTIFY_HANDLER, AcpiEvNotifyDispatch, NotifyInfo); - if (ACPI_FAILURE (Status)) - { - AcpiUtDeleteGenericState (NotifyInfo); - } - } - - if (!HandlerObj) - { - /* - * There is no per-device notify handler for this device. - * This may or may not be a problem. - */ - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "No notify handler for Notify(%4.4s, %X) node %p\n", - AcpiUtGetNodeName (Node), NotifyValue, Node)); - } - - return (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvNotifyDispatch - * - * PARAMETERS: Context - To be passed to the notify handler - * - * RETURN: None. - * - * DESCRIPTION: Dispatch a device notification event to a previously - * installed handler. - * - ******************************************************************************/ - -static void ACPI_SYSTEM_XFACE -AcpiEvNotifyDispatch ( - void *Context) -{ - ACPI_GENERIC_STATE *NotifyInfo = (ACPI_GENERIC_STATE *) Context; - ACPI_NOTIFY_HANDLER GlobalHandler = NULL; - void *GlobalContext = NULL; - ACPI_OPERAND_OBJECT *HandlerObj; - - - ACPI_FUNCTION_ENTRY (); - - - /* - * We will invoke a global notify handler if installed. - * This is done _before_ we invoke the per-device handler attached - * to the device. - */ - if (NotifyInfo->Notify.Value <= ACPI_MAX_SYS_NOTIFY) - { - /* Global system notification handler */ - - if (AcpiGbl_SystemNotify.Handler) - { - GlobalHandler = AcpiGbl_SystemNotify.Handler; - GlobalContext = AcpiGbl_SystemNotify.Context; - } - } - else - { - /* Global driver notification handler */ - - if (AcpiGbl_DeviceNotify.Handler) - { - GlobalHandler = AcpiGbl_DeviceNotify.Handler; - GlobalContext = AcpiGbl_DeviceNotify.Context; - } - } - - /* Invoke the system handler first, if present */ - - if (GlobalHandler) - { - GlobalHandler (NotifyInfo->Notify.Node, NotifyInfo->Notify.Value, - GlobalContext); - } - - /* Now invoke the per-device handler, if present */ - - HandlerObj = NotifyInfo->Notify.HandlerObj; - if (HandlerObj) - { - HandlerObj->Notify.Handler (NotifyInfo->Notify.Node, - NotifyInfo->Notify.Value, - HandlerObj->Notify.Context); - } - - /* All done with the info object */ - - AcpiUtDeleteGenericState (NotifyInfo); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvGlobalLockHandler - * - * PARAMETERS: Context - From thread interface, not used - * - * RETURN: ACPI_INTERRUPT_HANDLED - * - * DESCRIPTION: Invoked directly from the SCI handler when a global lock - * release interrupt occurs. Attempt to acquire the global lock, - * if successful, signal the thread waiting for the lock. - * - * NOTE: Assumes that the semaphore can be signaled from interrupt level. If - * this is not possible for some reason, a separate thread will have to be - * scheduled to do this. - * - ******************************************************************************/ - -static UINT32 -AcpiEvGlobalLockHandler ( - void *Context) -{ - BOOLEAN Acquired = FALSE; - ACPI_STATUS Status; - - - /* - * 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. - */ - ACPI_ACQUIRE_GLOBAL_LOCK (Facs, Acquired); - if (Acquired) - { - /* Got the lock, now wake the thread waiting for it */ - - AcpiGbl_GlobalLockAcquired = TRUE; - - /* Send a unit to the semaphore */ - - Status = AcpiOsSignalSemaphore (AcpiGbl_GlobalLockSemaphore, 1); - if (ACPI_FAILURE (Status)) - { - ACPI_ERROR ((AE_INFO, "Could not signal Global Lock semaphore")); - } - } - - return (ACPI_INTERRUPT_HANDLED); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvInitGlobalLockHandler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for the global lock release event - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvInitGlobalLockHandler ( - void) -{ - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (EvInitGlobalLockHandler); - - - Status = AcpiGetTableByIndex (ACPI_TABLE_INDEX_FACS, - ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &Facs)); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - AcpiGbl_GlobalLockPresent = TRUE; - Status = AcpiInstallFixedEventHandler (ACPI_EVENT_GLOBAL, - AcpiEvGlobalLockHandler, NULL); - - /* - * If the global lock does not exist on this platform, the attempt - * to enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick) - * Map to AE_OK, but mark global lock as not present. - * Any attempt to actually use the global lock will be flagged - * with an error. - */ - if (Status == AE_NO_HARDWARE_RESPONSE) - { - ACPI_ERROR ((AE_INFO, - "No response from Global Lock hardware, disabling lock")); - - AcpiGbl_GlobalLockPresent = FALSE; - Status = AE_OK; - } - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvRemoveGlobalLockHandler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Remove the handler for the Global Lock - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiEvRemoveGlobalLockHandler ( - void) -{ - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (EvRemoveGlobalLockHandler); - - AcpiGbl_GlobalLockPresent = FALSE; - Status = AcpiRemoveFixedEventHandler (ACPI_EVENT_GLOBAL, - AcpiEvGlobalLockHandler); - - return_ACPI_STATUS (Status); -} - - -/****************************************************************************** - * - * FUNCTION: AcpiEvAcquireGlobalLock - * - * PARAMETERS: Timeout - Max time to wait for the lock, in millisec. - * - * RETURN: Status - * - * DESCRIPTION: Attempt to gain ownership of the Global Lock. - * - * MUTEX: Interpreter must be locked - * - * Note: The original implementation allowed multiple threads to "acquire" the - * Global Lock, and the OS would hold the lock until the last thread had - * released it. However, this could potentially starve the BIOS out of the - * lock, especially in the case where there is a tight handshake between the - * Embedded Controller driver and the BIOS. Therefore, this implementation - * allows only one thread to acquire the HW Global Lock at a time, and makes - * the global lock appear as a standard mutex on the OS side. - * - *****************************************************************************/ - -ACPI_STATUS -AcpiEvAcquireGlobalLock ( - UINT16 Timeout) -{ - ACPI_STATUS Status = AE_OK; - BOOLEAN Acquired = FALSE; - - - ACPI_FUNCTION_TRACE (EvAcquireGlobalLock); - - - /* - * Only one thread can acquire the GL at a time, the GlobalLockMutex - * enforces this. This interface releases the interpreter if we must wait. - */ - Status = AcpiExSystemWaitMutex (AcpiGbl_GlobalLockMutex->Mutex.OsMutex, - Timeout); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* - * Update the global lock handle and check for wraparound. The handle is - * only used for the external global lock interfaces, but it is updated - * here to properly handle the case where a single thread may acquire the - * lock via both the AML and the AcpiAcquireGlobalLock interfaces. The - * handle is therefore updated on the first acquire from a given thread - * regardless of where the acquisition request originated. - */ - AcpiGbl_GlobalLockHandle++; - if (AcpiGbl_GlobalLockHandle == 0) - { - AcpiGbl_GlobalLockHandle = 1; - } - - /* - * Make sure that a global lock actually exists. If not, just treat - * the lock as a standard mutex. - */ - if (!AcpiGbl_GlobalLockPresent) - { - AcpiGbl_GlobalLockAcquired = TRUE; - return_ACPI_STATUS (AE_OK); - } - - /* Attempt to acquire the actual hardware lock */ - - ACPI_ACQUIRE_GLOBAL_LOCK (Facs, Acquired); - if (Acquired) - { - /* We got the lock */ - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Acquired hardware 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. - */ - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n")); - - /* - * Wait for handshake with the global lock interrupt handler. - * This interface releases the interpreter if we must wait. - */ - Status = AcpiExSystemWaitSemaphore (AcpiGbl_GlobalLockSemaphore, - ACPI_WAIT_FOREVER); - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiEvReleaseGlobalLock - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Releases ownership of the Global Lock. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvReleaseGlobalLock ( - void) -{ - BOOLEAN Pending = FALSE; - ACPI_STATUS Status = AE_OK; - - - ACPI_FUNCTION_TRACE (EvReleaseGlobalLock); - - - /* Lock must be already acquired */ - - if (!AcpiGbl_GlobalLockAcquired) - { - ACPI_WARNING ((AE_INFO, - "Cannot release the ACPI Global Lock, it has not been acquired")); - return_ACPI_STATUS (AE_NOT_ACQUIRED); - } - - if (AcpiGbl_GlobalLockPresent) - { - /* Allow any thread to release the lock */ - - ACPI_RELEASE_GLOBAL_LOCK (Facs, Pending); - - /* - * If the pending bit was set, we must write GBL_RLS to the control - * register - */ - if (Pending) - { - Status = AcpiSetRegister ( - ACPI_BITREG_GLOBAL_LOCK_RELEASE, 1); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Released hardware Global Lock\n")); - } - - AcpiGbl_GlobalLockAcquired = FALSE; - - /* Release the local GL mutex */ - - AcpiOsReleaseMutex (AcpiGbl_GlobalLockMutex->Mutex.OsMutex); - return_ACPI_STATUS (Status); -} - - -/****************************************************************************** - * - * FUNCTION: AcpiEvTerminate - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: Disable events and free memory allocated for table storage. - * - ******************************************************************************/ - -void -AcpiEvTerminate ( - void) -{ - ACPI_NATIVE_UINT i; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (EvTerminate); - - - if (AcpiGbl_EventsInitialized) - { - /* - * Disable all event-related functionality. - * In all cases, on error, print a message but obviously we don't abort. - */ - - /* Disable all fixed events */ - - for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) - { - Status = AcpiDisableEvent ((UINT32) i, 0); - if (ACPI_FAILURE (Status)) - { - ACPI_ERROR ((AE_INFO, - "Could not disable fixed event %d", (UINT32) i)); - } - } - - /* Disable all GPEs in all GPE blocks */ - - Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock); - - /* Remove SCI handler */ - - Status = AcpiEvRemoveSciHandler (); - if (ACPI_FAILURE(Status)) - { - ACPI_ERROR ((AE_INFO, - "Could not remove SCI handler")); - } - - Status = AcpiEvRemoveGlobalLockHandler (); - if (ACPI_FAILURE(Status)) - { - ACPI_ERROR ((AE_INFO, - "Could not remove Global Lock handler")); - } - } - - /* Deallocate all handler objects installed within GPE info structs */ - - Status = AcpiEvWalkGpeList (AcpiEvDeleteGpeHandlers); - - /* Return to original mode if necessary */ - - if (AcpiGbl_OriginalMode == ACPI_SYS_MODE_LEGACY) - { - Status = AcpiDisable (); - if (ACPI_FAILURE (Status)) - { - ACPI_WARNING ((AE_INFO, "AcpiDisable failed")); - } - } - return_VOID; -} - |
