diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/events/evmisc.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/events/evmisc.c | 377 |
1 files changed, 377 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/events/evmisc.c b/sys/contrib/dev/acpica/components/events/evmisc.c new file mode 100644 index 0000000..52978be --- /dev/null +++ b/sys/contrib/dev/acpica/components/events/evmisc.c @@ -0,0 +1,377 @@ +/****************************************************************************** + * + * Module Name: evmisc - Miscellaneous event manager support functions + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acevents.h> +#include <contrib/dev/acpica/include/acnamesp.h> + +#define _COMPONENT ACPI_EVENTS + ACPI_MODULE_NAME ("evmisc") + + +/* Local prototypes */ + +static void ACPI_SYSTEM_XFACE +AcpiEvNotifyDispatch ( + void *Context); + + +/******************************************************************************* + * + * 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_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 0x03 (Ejection Request), may need to run a device method. + * For value 0x02 (Device Wake), if _PRW exists, may need to run + * the _PS0 method. + * For value 0x80 (Status Change) on the power button or sleep button, + * initiate soft-off or sleep operation. + * + * For all cases, simply dispatch the notify to the handler. + */ + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n", + AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type), + NotifyValue, AcpiUtGetNotifyName (NotifyValue), Node)); + + /* Get the notify object attached to the NS Node */ + + ObjDesc = AcpiNsGetAttachedObject (Node); + if (ObjDesc) + { + /* We have the notify object, Get the correct handler */ + + switch (Node->Type) + { + /* Notify is allowed only on these types */ + + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_THERMAL: + case ACPI_TYPE_PROCESSOR: + + 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 a handler to run, schedule the dispatcher. + * Check for: + * 1) Global system notify handler + * 2) Global device notify handler + * 3) Per-device notify handler + */ + 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); + } + + if (!HandlerObj) + { + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Executing system notify handler for Notify (%4.4s, %X) " + "node %p\n", + AcpiUtGetNodeName (Node), NotifyValue, Node)); + } + + 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); + } + } + else + { + /* There is no notify handler (per-device or system) for this device */ + + 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); +} + + +#if (!ACPI_REDUCED_HARDWARE) +/****************************************************************************** + * + * FUNCTION: AcpiEvTerminate + * + * PARAMETERS: none + * + * RETURN: none + * + * DESCRIPTION: Disable events and free memory allocated for table storage. + * + ******************************************************************************/ + +void +AcpiEvTerminate ( + void) +{ + UINT32 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 (i, 0); + if (ACPI_FAILURE (Status)) + { + ACPI_ERROR ((AE_INFO, + "Could not disable fixed event %u", (UINT32) i)); + } + } + + /* Disable all GPEs in all GPE blocks */ + + Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL); + + /* 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, NULL); + + /* 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; +} + +#endif /* !ACPI_REDUCED_HARDWARE */ |
