diff options
Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Namespace/nsinit.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Namespace/nsinit.c | 514 |
1 files changed, 514 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Namespace/nsinit.c b/sys/contrib/dev/acpica/Subsystem/Namespace/nsinit.c new file mode 100644 index 0000000000000..6be2d048ee376 --- /dev/null +++ b/sys/contrib/dev/acpica/Subsystem/Namespace/nsinit.c @@ -0,0 +1,514 @@ +/****************************************************************************** + * + * Module Name: nsinit - namespace initialization + * $Revision: 4 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999, 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 __NSXFINIT_C__ + +#include "acpi.h" +#include "acnamesp.h" +#include "acdispat.h" + +#define _COMPONENT NAMESPACE + MODULE_NAME ("nsinit") + + +/******************************************************************************* + * + * FUNCTION: AcpiNsInitializeObjects + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Walk the entire namespace and perform any necessary + * initialization on the objects found therein + * + ******************************************************************************/ + +ACPI_STATUS +AcpiNsInitializeObjects ( + void) +{ + ACPI_STATUS Status; + ACPI_INIT_WALK_INFO Info; + + + FUNCTION_TRACE ("NsInitializeObjects"); + + + DEBUG_PRINT (TRACE_DISPATCH, + ("NsInitializeObjects: **** Starting initialization of namespace objects ****\n")); + DEBUG_PRINT_RAW (ACPI_OK, ("Completing Region and Field initialization:")); + + + Info.FieldCount = 0; + Info.FieldInit = 0; + Info.OpRegionCount = 0; + Info.OpRegionInit = 0; + Info.ObjectCount = 0; + + + /* Walk entire namespace from the supplied root */ + + Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, AcpiNsInitOneObject, + &Info, NULL); + if (ACPI_FAILURE (Status)) + { + DEBUG_PRINT (ACPI_ERROR, + ("NsInitializeObjects: WalkNamespace failed! %x\n", Status)); + } + + DEBUG_PRINT_RAW (ACPI_OK, + ("\n%d/%d Regions, %d/%d Fields initialized (%d nodes total)\n", + Info.OpRegionInit, Info.OpRegionCount, Info.FieldInit, Info.FieldCount, Info.ObjectCount)); + DEBUG_PRINT (TRACE_DISPATCH, + ("NsInitializeObjects: %d Control Methods found\n", Info.MethodCount)); + DEBUG_PRINT (TRACE_DISPATCH, + ("NsInitializeObjects: %d Op Regions found\n", Info.OpRegionCount)); + + return_ACPI_STATUS (AE_OK); +} + + +/****************************************************************************** + * + * FUNCTION: AcpiNsInitializeDevices + * + * PARAMETERS: None + * + * RETURN: ACPI_STATUS + * + * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices. + * This means running _INI on all present devices. + * + * Also: Install PCI config space handler for all PCI root bridges. + * A PCI root bridge is found by searching for devices containing + * a HID with the value EISAID("PNP0A03") + * + *****************************************************************************/ + +ACPI_STATUS +AcpiNsInitializeDevices ( + UINT32 Flags) +{ + ACPI_STATUS Status; + ACPI_DEVICE_WALK_INFO Info; + + + FUNCTION_TRACE ("NsInitializeDevices"); + + + Info.Flags = Flags; + Info.DeviceCount = 0; + Info.Num_STA = 0; + Info.Num_INI = 0; + Info.Num_HID = 0; + Info.Num_PCI = 0; + + + DEBUG_PRINT_RAW (ACPI_OK, ("Executing device _INI methods:")); + + Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, + FALSE, AcpiNsInitOneDevice, &Info, NULL); + + if (ACPI_FAILURE (Status)) + { + DEBUG_PRINT (ACPI_ERROR, + ("NsInitializeDevices: WalkNamespace failed! %x\n", Status)); + } + + + DEBUG_PRINT_RAW (ACPI_OK, + ("\n%d Devices found: %d _STA, %d _INI, %d _HID, %d PCIRoot\n", + Info.DeviceCount, Info.Num_STA, Info.Num_INI, + Info.Num_HID, Info.Num_PCI)); + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiNsInitOneObject + * + * PARAMETERS: ObjHandle - Node + * Level - Current nesting level + * Context - Points to a init info struct + * ReturnValue - Not used + * + * RETURN: Status + * + * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object + * within the namespace. + * + * Currently, the only objects that require initialization are: + * 1) Methods + * 2) Op Regions + * + ******************************************************************************/ + +ACPI_STATUS +AcpiNsInitOneObject ( + ACPI_HANDLE ObjHandle, + UINT32 Level, + void *Context, + void **ReturnValue) +{ + OBJECT_TYPE_INTERNAL Type; + ACPI_STATUS Status; + ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; + ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; + ACPI_OPERAND_OBJECT *ObjDesc; + + + Info->ObjectCount++; + + + /* And even then, we are only interested in a few object types */ + + Type = AcpiNsGetType (ObjHandle); + ObjDesc = Node->Object; + if (!ObjDesc) + { + return (AE_OK); + } + + switch (Type) + { + + case ACPI_TYPE_REGION: + + Info->OpRegionCount++; + if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) + { + break; + } + + Info->OpRegionInit++; + Status = AcpiDsGetRegionArguments (ObjDesc); + DEBUG_PRINT_RAW (ACPI_OK, (".")); + break; + + + case ACPI_TYPE_FIELD_UNIT: + + Info->FieldCount++; + if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) + { + break; + } + + Info->FieldInit++; + Status = AcpiDsGetFieldUnitArguments (ObjDesc); + DEBUG_PRINT_RAW (ACPI_OK, (".")); + + break; + + default: + break; + } + + /* + * We ignore errors from above, and always return OK, since + * we don't want to abort the walk on a single error. + */ + return (AE_OK); +} + + +/****************************************************************************** + * + * FUNCTION: AcpiNsInitOneDevice + * + * PARAMETERS: The usual "I'm a namespace callback" stuff + * + * RETURN: ACPI_STATUS + * + * DESCRIPTION: This is called once per device soon after ACPI is enabled + * to initialize each device. It determines if the device is + * present, and if so, calls _INI. + * + *****************************************************************************/ + +ACPI_STATUS +AcpiNsInitOneDevice ( + ACPI_HANDLE ObjHandle, + UINT32 NestingLevel, + void *Context, + void **ReturnValue) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT *RetObj = NULL; + ACPI_NAMESPACE_NODE *Node; + UINT32 Flags; + ACPI_DEVICE_WALK_INFO *Info = (ACPI_DEVICE_WALK_INFO *) Context; + + + FUNCTION_TRACE ("AcpiNsInitOneDevice"); + + + DEBUG_PRINT_RAW (ACPI_OK, (".")); + Info->DeviceCount++; + + AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); + + Node = AcpiNsConvertHandleToEntry (ObjHandle); + if (!Node) + { + AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); + return (AE_BAD_PARAMETER); + } + + AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); + + /* + * Run _STA to determine if we can run _INI on the device. + */ + + Status = AcpiCmExecute_STA (Node, &Flags); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Info->Num_STA++; + + if (!(Flags & 0x01)) + { + /* don't look at children of a not present device */ + return_ACPI_STATUS(AE_CTRL_DEPTH); + } + + /* + * The device is present. Run _INI. + */ + + Status = AcpiNsEvaluateRelative (ObjHandle, "_INI", NULL, NULL); + if (AE_NOT_FOUND == Status) + { + /* No _INI means device requires no initialization */ + } + + else if (ACPI_FAILURE (Status)) + { +#ifdef ACPI_DEBUG + NATIVE_CHAR *ScopeName = AcpiNsGetTablePathname (ObjHandle); + + DEBUG_PRINT (ACPI_ERROR, ("%s._INI failed: %s\n", + ScopeName, AcpiCmFormatException (Status))); + + AcpiCmFree (ScopeName); +#endif + return_ACPI_STATUS (Status); + } + + else + { + Info->Num_INI++; + } + + + /* + * Examine the HID of the device. _HID can be an executable + * control method -- it simply has to return a string or number + * containing the HID. + */ + + if (RetObj) + { + AcpiCmRemoveReference (RetObj); + } + + RetObj = NULL; + Status = AcpiNsEvaluateRelative (ObjHandle, "_HID", NULL, &RetObj); + if (AE_NOT_FOUND == Status) + { + /* No _HID --> Can't be a PCI root bridge */ + + return_ACPI_STATUS (AE_OK); + } + + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Info->Num_HID++; + + + /* + * Found an _HID object. + * Check for a PCI Root Bridge. We need to install the PCI_CONFIG space + * handler on all PCI Root Bridges found within the namespace + * + * A PCI Root Bridge has an HID with the value EISAID("PNP0A03") + * The HID can be either a number or a string. + */ + + switch (RetObj->Common.Type) + { + case ACPI_TYPE_NUMBER: + + if (RetObj->Number.Value != PCI_ROOT_HID_VALUE) + { + goto Cleanup; + } + + break; + + case ACPI_TYPE_STRING: + + if (STRNCMP (RetObj->String.Pointer, PCI_ROOT_HID_STRING, + sizeof (PCI_ROOT_HID_STRING))) + { + goto Cleanup; + } + + break; + + default: + + goto Cleanup; + } + + + /* + * We found a valid PCI_ROOT_HID. + * The parent of the HID entry is the PCI device; Install the default PCI + * handler for this PCI device. + */ + + Info->Num_PCI++; + + if (!(Info->Flags & ACPI_NO_PCI_INIT)) + { + Status = AcpiInstallAddressSpaceHandler (ObjHandle, + ADDRESS_SPACE_PCI_CONFIG, + ACPI_DEFAULT_HANDLER, NULL, NULL); + } + +Cleanup: + + if (RetObj) + { + AcpiCmRemoveReference (RetObj); + } + + return_ACPI_STATUS (AE_OK); +} + + |