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Diffstat (limited to 'sys/contrib/dev/acpica/evregion.c')
| -rw-r--r-- | sys/contrib/dev/acpica/evregion.c | 777 |
1 files changed, 0 insertions, 777 deletions
diff --git a/sys/contrib/dev/acpica/evregion.c b/sys/contrib/dev/acpica/evregion.c deleted file mode 100644 index 49d5d3ff7352..000000000000 --- a/sys/contrib/dev/acpica/evregion.c +++ /dev/null @@ -1,777 +0,0 @@ -/****************************************************************************** - * - * Module Name: evregion - ACPI AddressSpace (OpRegion) handler dispatch - * $Revision: 94 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 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. - * - *****************************************************************************/ - - -#define __EVREGION_C__ - -#include "acpi.h" -#include "acevents.h" -#include "acnamesp.h" -#include "acinterp.h" -#include "amlcode.h" - -#define _COMPONENT EVENT_HANDLING - MODULE_NAME ("evregion") - - -/************************************************************************** - * - * FUNCTION: AcpiEvInstallDefaultAddressSpaceHandlers - * - * PARAMETERS: - * - * RETURN: Status - * - * DESCRIPTION: Installs the core subsystem address space handlers. - * - *************************************************************************/ - -ACPI_STATUS -AcpiEvInstallDefaultAddressSpaceHandlers ( - void) -{ - ACPI_STATUS Status; - - - FUNCTION_TRACE ("EvInstallDefaultAddressSpaceHandlers"); - - /* - * All address spaces (PCI Config, EC, SMBus) are scope dependent - * and registration must occur for a specific device. In the case - * system memory and IO address spaces there is currently no device - * associated with the address space. For these we use the root. - * We install the default PCI config space handler at the root so - * that this space is immediately available even though the we have - * not enumerated all the PCI Root Buses yet. This is to conform - * to the ACPI specification which states that the PCI config - * space must be always available -- even though we are nowhere - * near ready to find the PCI root buses at this point. - * - * NOTE: We ignore AE_EXIST because this means that a handler has - * already been installed (via AcpiInstallAddressSpaceHandler) - */ - - Status = AcpiInstallAddressSpaceHandler (AcpiGbl_RootNode, - ADDRESS_SPACE_SYSTEM_MEMORY, - ACPI_DEFAULT_HANDLER, NULL, NULL); - if ((ACPI_FAILURE (Status)) && - (Status != AE_EXIST)) - { - return_ACPI_STATUS (Status); - } - - Status = AcpiInstallAddressSpaceHandler (AcpiGbl_RootNode, - ADDRESS_SPACE_SYSTEM_IO, - ACPI_DEFAULT_HANDLER, NULL, NULL); - if ((ACPI_FAILURE (Status)) && - (Status != AE_EXIST)) - { - return_ACPI_STATUS (Status); - } - - Status = AcpiInstallAddressSpaceHandler (AcpiGbl_RootNode, - ADDRESS_SPACE_PCI_CONFIG, - ACPI_DEFAULT_HANDLER, NULL, NULL); - if ((ACPI_FAILURE (Status)) && - (Status != AE_EXIST)) - { - return_ACPI_STATUS (Status); - } - - - return_ACPI_STATUS (AE_OK); -} - - -/* TBD: [Restructure] Move elsewhere */ - -/************************************************************************** - * - * FUNCTION: AcpiEvExecuteRegMethod - * - * PARAMETERS: RegionObj - Object structure - * Function - On (1) or Off (0) - * - * RETURN: Status - * - * DESCRIPTION: Execute _REG method for a region - * - *************************************************************************/ - -static ACPI_STATUS -AcpiEvExecuteRegMethod ( - ACPI_OPERAND_OBJECT *RegionObj, - UINT32 Function) -{ - ACPI_OPERAND_OBJECT *Params[3]; - ACPI_OPERAND_OBJECT SpaceIdDesc; - ACPI_OPERAND_OBJECT FunctionDesc; - ACPI_STATUS Status; - - - FUNCTION_TRACE ("EvExecuteRegMethod"); - - - if (RegionObj->Region.Extra->Extra.Method_REG == NULL) - { - return_ACPI_STATUS (AE_OK); - } - - /* - * _REG method has two arguments - * Arg0: Integer: Operation region space ID - * Same value as RegionObj->Region.SpaceId - * Arg1: Integer: connection status - * 1 for connecting the handler, - * 0 for disconnecting the handler - * Passed as a parameter - */ - - AcpiCmInitStaticObject (&SpaceIdDesc); - AcpiCmInitStaticObject (&FunctionDesc); - - /* - * Method requires two parameters. - */ - Params [0] = &SpaceIdDesc; - Params [1] = &FunctionDesc; - Params [2] = NULL; - - /* - * Set up the parameter objects - */ - SpaceIdDesc.Common.Type = ACPI_TYPE_INTEGER; - SpaceIdDesc.Integer.Value = RegionObj->Region.SpaceId; - - FunctionDesc.Common.Type = ACPI_TYPE_INTEGER; - FunctionDesc.Integer.Value = Function; - - /* - * Execute the method, no return value - */ - Status = AcpiNsEvaluateByHandle (RegionObj->Region.Extra->Extra.Method_REG, Params, NULL); - return_ACPI_STATUS (Status); -} - - -/************************************************************************** - * - * FUNCTION: AcpiEvAddressSpaceDispatch - * - * PARAMETERS: RegionObj - internal region object - * SpaceId - ID of the address space (0-255) - * Function - Read or Write operation - * Address - Where in the space to read or write - * BitWidth - Field width in bits (8, 16, or 32) - * Value - Pointer to in or out value - * - * RETURN: Status - * - * DESCRIPTION: Dispatch an address space or operation region access to - * a previously installed handler. - * - *************************************************************************/ - -ACPI_STATUS -AcpiEvAddressSpaceDispatch ( - ACPI_OPERAND_OBJECT *RegionObj, - UINT32 Function, - ACPI_PHYSICAL_ADDRESS Address, - UINT32 BitWidth, - UINT32 *Value) -{ - ACPI_STATUS Status; - ADDRESS_SPACE_HANDLER Handler; - ADDRESS_SPACE_SETUP RegionSetup; - ACPI_OPERAND_OBJECT *HandlerDesc; - void *RegionContext = NULL; - - - FUNCTION_TRACE ("EvAddressSpaceDispatch"); - - - /* - * Check for an installed handler - */ - HandlerDesc = RegionObj->Region.AddrHandler; - - if (!HandlerDesc) - { - DEBUG_PRINT (TRACE_OPREGION, - ("Dispatch address access region %p, no handler\n", RegionObj)); - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* - * It may be the case that the region has never been initialized - * Some types of regions require special init code - */ - if (!(RegionObj->Region.Flags & AOPOBJ_INITIALIZED)) - { - /* - * This region has not been initialized yet, do it - */ - RegionSetup = HandlerDesc->AddrHandler.Setup; - if (!RegionSetup) - { - /* - * Bad news, no init routine and not init'd - */ - DEBUG_PRINT (ACPI_ERROR, - ("EvAddressSpaceDispatch: No init routine for region %p\n", - RegionObj)); - return_ACPI_STATUS (AE_UNKNOWN_STATUS); - } - - /* - * We must exit the interpreter because the region setup will potentially - * execute control methods - */ - AcpiAmlExitInterpreter (); - - Status = RegionSetup (RegionObj, ACPI_REGION_ACTIVATE, - HandlerDesc->AddrHandler.Context, - &RegionContext); - - /* Re-enter the interpreter */ - - AcpiAmlEnterInterpreter (); - - /* - * Init routine may fail - */ - if (ACPI_FAILURE (Status)) - { - DEBUG_PRINT (ACPI_ERROR, - ("EvAddressSpaceDispatch: %s from region init, SpaceID %X\n", - AcpiCmFormatException (Status), RegionObj->Region.SpaceId)); - return_ACPI_STATUS(Status); - } - - RegionObj->Region.Flags |= AOPOBJ_INITIALIZED; - - /* - * Save the returned context for use in all accesses to - * this particular region. - */ - RegionObj->Region.Extra->Extra.RegionContext = RegionContext; - } - - /* - * We have everything we need, begin the process - */ - Handler = HandlerDesc->AddrHandler.Handler; - - DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), - ("Addrhandler %p (%p), Address %p\n", - &RegionObj->Region.AddrHandler->AddrHandler, Handler, Address)); - - if (!(HandlerDesc->AddrHandler.Flags & ADDR_HANDLER_DEFAULT_INSTALLED)) - { - /* - * For handlers other than the default (supplied) handlers, we must - * exit the interpreter because the handler *might* block -- we don't - * know what it will do, so we can't hold the lock on the intepreter. - */ - AcpiAmlExitInterpreter(); - } - - /* - * Invoke the handler. - */ - Status = Handler (Function, Address, BitWidth, Value, - HandlerDesc->AddrHandler.Context, - RegionObj->Region.Extra->Extra.RegionContext); - - if (ACPI_FAILURE (Status)) - { - DEBUG_PRINT (ACPI_ERROR, - ("EvAddressSpaceDispatch: %s from handler, SpaceID %X\n", - AcpiCmFormatException (Status), RegionObj->Region.SpaceId)); - } - - if (!(HandlerDesc->AddrHandler.Flags & ADDR_HANDLER_DEFAULT_INSTALLED)) - { - /* We just returned from a non-default handler, we must re-enter the - interpreter */ - - AcpiAmlEnterInterpreter (); - } - - return_ACPI_STATUS (Status); -} - -/****************************************************************************** - * - * FUNCTION: AcpiEvDisassociateRegionFromHandler - * - * PARAMETERS: RegionObj - Region Object - * AcpiNsIsLocked - Namespace Region Already Locked? - * - * RETURN: None - * - * DESCRIPTION: Break the association between the handler and the region - * this is a two way association. - * - ******************************************************************************/ - -void -AcpiEvDisassociateRegionFromHandler( - ACPI_OPERAND_OBJECT *RegionObj, - BOOLEAN AcpiNsIsLocked) -{ - ACPI_OPERAND_OBJECT *HandlerObj; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_OPERAND_OBJECT **LastObjPtr; - ADDRESS_SPACE_SETUP RegionSetup; - void *RegionContext; - ACPI_STATUS Status; - - - FUNCTION_TRACE ("EvDisassociateRegionFromHandler"); - - RegionContext = RegionObj->Region.Extra->Extra.RegionContext; - - /* - * Get the address handler from the region object - */ - - HandlerObj = RegionObj->Region.AddrHandler; - if (!HandlerObj) - { - /* - * This region has no handler, all done - */ - return_VOID; - } - - - /* - * Find this region in the handler's list - */ - - ObjDesc = HandlerObj->AddrHandler.RegionList; - LastObjPtr = &HandlerObj->AddrHandler.RegionList; - - while (ObjDesc) - { - /* - * See if this is the one - */ - if (ObjDesc == RegionObj) - { - DEBUG_PRINT (TRACE_OPREGION, - ("Removing Region %p from address handler %p\n", - RegionObj, HandlerObj)); - /* - * This is it, remove it from the handler's list - */ - *LastObjPtr = ObjDesc->Region.Next; - ObjDesc->Region.Next = NULL; /* Must clear field */ - - if (AcpiNsIsLocked) - { - AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); - } - - /* - * Now stop region accesses by executing the _REG method - */ - AcpiEvExecuteRegMethod (RegionObj, 0); - - if (AcpiNsIsLocked) - { - AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); - } - - /* - * Call the setup handler with the deactivate notification - */ - RegionSetup = HandlerObj->AddrHandler.Setup; - Status = RegionSetup (RegionObj, ACPI_REGION_DEACTIVATE, - HandlerObj->AddrHandler.Context, - &RegionContext); - - /* - * Init routine may fail, Just ignore errors - */ - if (ACPI_FAILURE (Status)) - { - DEBUG_PRINT (ACPI_ERROR, - ("EvDisassociateRegionFromHandler: %s from region init, SpaceID %X\n", - AcpiCmFormatException (Status), RegionObj->Region.SpaceId)); - } - - RegionObj->Region.Flags &= ~(AOPOBJ_INITIALIZED); - - /* - * Remove handler reference in the region - * - * NOTE: this doesn't mean that the region goes away - * The region is just inaccessible as indicated to - * the _REG method - * - * If the region is on the handler's list - * this better be the region's handler - */ - ACPI_ASSERT (RegionObj->Region.AddrHandler == HandlerObj); - - RegionObj->Region.AddrHandler = NULL; - - return_VOID; - - } /* found the right handler */ - - /* - * Move through the linked list of handlers - */ - LastObjPtr = &ObjDesc->Region.Next; - ObjDesc = ObjDesc->Region.Next; - } - - /* - * If we get here, the region was not in the handler's region list - */ - DEBUG_PRINT (TRACE_OPREGION, - ("Cannot remove region %p from address handler %p\n", - RegionObj, HandlerObj)); - - return_VOID; -} - - -/****************************************************************************** - * - * FUNCTION: AcpiEvAssociateRegionAndHandler - * - * PARAMETERS: HandlerObj - Handler Object - * RegionObj - Region Object - * AcpiNsIsLocked - Namespace Region Already Locked? - * - * RETURN: None - * - * DESCRIPTION: Create the association between the handler and the region - * this is a two way association. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiEvAssociateRegionAndHandler ( - ACPI_OPERAND_OBJECT *HandlerObj, - ACPI_OPERAND_OBJECT *RegionObj, - BOOLEAN AcpiNsIsLocked) -{ - ACPI_STATUS Status; - - - FUNCTION_TRACE ("EvAssociateRegionAndHandler"); - - - DEBUG_PRINT (TRACE_OPREGION, ("Adding Region %p to address handler %p\n", - RegionObj, HandlerObj)); - - ACPI_ASSERT (RegionObj->Region.SpaceId == HandlerObj->AddrHandler.SpaceId); - ACPI_ASSERT (RegionObj->Region.AddrHandler == 0); - - /* - * Link this region to the front of the handler's list - */ - - RegionObj->Region.Next = HandlerObj->AddrHandler.RegionList; - HandlerObj->AddrHandler.RegionList = RegionObj; - - /* - * set the region's handler - */ - -/* - HandlerObj->Common.ReferenceCount = - (UINT16) (HandlerObj->Common.ReferenceCount + - RegionObj->Common.ReferenceCount - 1); -*/ - RegionObj->Region.AddrHandler = HandlerObj; - - /* - * Last thing, tell all users that this region is usable - */ - if (AcpiNsIsLocked) - { - AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); - } - - Status = AcpiEvExecuteRegMethod (RegionObj, 1); - - if (AcpiNsIsLocked) - { - AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); - } - - return_ACPI_STATUS (Status); -} - - -/**************************************************************************** - * - * FUNCTION: AcpiEvAddrHandlerHelper - * - * PARAMETERS: Handle - Node to be dumped - * Level - Nesting level of the handle - * Context - Passed into AcpiNsWalkNamespace - * - * DESCRIPTION: This routine checks to see if the object is a Region if it - * is then the address handler is installed in it. - * - * If the Object is a Device, and the device has a handler of - * the same type then the search is terminated in that branch. - * - * This is because the existing handler is closer in proximity - * to any more regions than the one we are trying to install. - * - ***************************************************************************/ - -ACPI_STATUS -AcpiEvAddrHandlerHelper ( - ACPI_HANDLE ObjHandle, - UINT32 Level, - void *Context, - void **ReturnValue) -{ - ACPI_OPERAND_OBJECT *HandlerObj; - ACPI_OPERAND_OBJECT *TmpObj; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - - - HandlerObj = (ACPI_OPERAND_OBJECT *) Context; - - /* Parameter validation */ - - if (!HandlerObj) - { - return (AE_OK); - } - - /* Convert and validate the device handle */ - - Node = AcpiNsConvertHandleToEntry (ObjHandle); - if (!Node) - { - return (AE_BAD_PARAMETER); - } - - /* - * We only care about regions.and objects - * that can have address handlers - */ - - if ((Node->Type != ACPI_TYPE_DEVICE) && - (Node->Type != ACPI_TYPE_REGION) && - (Node != AcpiGbl_RootNode)) - { - return (AE_OK); - } - - /* Check for an existing internal object */ - - ObjDesc = AcpiNsGetAttachedObject ((ACPI_HANDLE) Node); - if (!ObjDesc) - { - /* - * The object DNE, we don't care about it - */ - return (AE_OK); - } - - /* - * Devices are handled different than regions - */ - if (IS_THIS_OBJECT_TYPE (ObjDesc, ACPI_TYPE_DEVICE)) - { - /* - * See if this guy has any handlers - */ - TmpObj = ObjDesc->Device.AddrHandler; - while (TmpObj) - { - /* - * Now let's see if it's for the same address space. - */ - if (TmpObj->AddrHandler.SpaceId == HandlerObj->AddrHandler.SpaceId) - { - /* - * It's for the same address space - */ - - DEBUG_PRINT (TRACE_OPREGION, - ("Found handler for region %s in device %p(%p) handler %p\n", - AcpiCmGetRegionName (HandlerObj->AddrHandler.SpaceId), ObjDesc, TmpObj, HandlerObj)); - - /* - * Since the object we found it on was a device, then it - * means that someone has already installed a handler for - * the branch of the namespace from this device on. Just - * bail out telling the walk routine to not traverse this - * branch. This preserves the scoping rule for handlers. - */ - return (AE_CTRL_DEPTH); - } - - /* - * Move through the linked list of handlers - */ - TmpObj = TmpObj->AddrHandler.Next; - } - - /* - * As long as the device didn't have a handler for this - * space we don't care about it. We just ignore it and - * proceed. - */ - return (AE_OK); - } - - /* - * Only here if it was a region - */ - ACPI_ASSERT (ObjDesc->Common.Type == ACPI_TYPE_REGION); - - if (ObjDesc->Region.SpaceId != HandlerObj->AddrHandler.SpaceId) - { - /* - * This region is for a different address space - * ignore it - */ - return (AE_OK); - } - - /* - * Now we have a region and it is for the handler's address - * space type. - * - * First disconnect region for any previous handler (if any) - */ - AcpiEvDisassociateRegionFromHandler (ObjDesc, FALSE); - - /* - * Then connect the region to the new handler - */ - Status = AcpiEvAssociateRegionAndHandler (HandlerObj, ObjDesc, FALSE); - - return (Status); -} - - |