/*******************************************************************************
*
* Module Name: rsxface - Public interfaces to the resource manager
* $Revision: 27 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2003, 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 __RSXFACE_C__
#include "acpi.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME ("rsxface")
/*******************************************************************************
*
* FUNCTION: AcpiGetIrqRoutingTable
*
* PARAMETERS: DeviceHandle - a handle to the Bus device we are querying
* RetBuffer - a pointer to a buffer to receive the
* current resources for the device
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the IRQ routing table for a
* specific bus. The caller must first acquire a handle for the
* desired bus. The routine table is placed in the buffer pointed
* to by the RetBuffer variable parameter.
*
* If the function fails an appropriate status will be returned
* and the value of RetBuffer is undefined.
*
* This function attempts to execute the _PRT method contained in
* the object indicated by the passed DeviceHandle.
*
******************************************************************************/
ACPI_STATUS
AcpiGetIrqRoutingTable (
ACPI_HANDLE DeviceHandle,
ACPI_BUFFER *RetBuffer)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("AcpiGetIrqRoutingTable ");
/*
* Must have a valid handle and buffer, So we have to have a handle
* and a return buffer structure, and if there is a non-zero buffer length
* we also need a valid pointer in the buffer. If it's a zero buffer length,
* we'll be returning the needed buffer size, so keep going.
*/
if (!DeviceHandle)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiUtValidateBuffer (RetBuffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiRsGetPrtMethodData (DeviceHandle, RetBuffer);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiGetCurrentResources
*
* PARAMETERS: DeviceHandle - a handle to the device object for the
* device we are querying
* RetBuffer - a pointer to a buffer to receive the
* current resources for the device
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the current resources for a
* specific device. The caller must first acquire a handle for
* the desired device. The resource data is placed in the buffer
* pointed to by the RetBuffer variable parameter.
*
* If the function fails an appropriate status will be returned
* and the value of RetBuffer is undefined.
*
* This function attempts to execute the _CRS method contained in
* the object indicated by the passed DeviceHandle.
*
******************************************************************************/
ACPI_STATUS
AcpiGetCurrentResources (
ACPI_HANDLE DeviceHandle,
ACPI_BUFFER *RetBuffer)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("AcpiGetCurrentResources");
/*
* Must have a valid handle and buffer, So we have to have a handle
* and a return buffer structure, and if there is a non-zero buffer length
* we also need a valid pointer in the buffer. If it's a zero buffer length,
* we'll be returning the needed buffer size, so keep going.
*/
if (!DeviceHandle)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiUtValidateBuffer (RetBuffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiRsGetCrsMethodData (DeviceHandle, RetBuffer);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiGetPossibleResources
*
* PARAMETERS: DeviceHandle - a handle to the device object for the
* device we are querying
* RetBuffer - a pointer to a buffer to receive the
* resources for the device
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get a list of the possible resources
* for a specific device. The caller must first acquire a handle
* for the desired device. The resource data is placed in the
* buffer pointed to by the RetBuffer variable.
*
* If the function fails an appropriate status will be returned
* and the value of RetBuffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiGetPossibleResources (
ACPI_HANDLE DeviceHandle,
ACPI_BUFFER *RetBuffer)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("AcpiGetPossibleResources");
/*
* Must have a valid handle and buffer, So we have to have a handle
* and a return buffer structure, and if there is a non-zero buffer length
* we also need a valid pointer in the buffer. If it's a zero buffer length,
* we'll be returning the needed buffer size, so keep going.
*/
if (!DeviceHandle)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiUtValidateBuffer (RetBuffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiRsGetPrsMethodData (DeviceHandle, RetBuffer);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiWalkResources
*
* PARAMETERS: DeviceHandle - a handle to the device object for the
* device we are querying
* Path - method name of the resources we want
* (METHOD_NAME__CRS or METHOD_NAME__PRS)
* UserFunction - called for each resource
* Context - passed to UserFunction
*
* RETURN: Status
*
* DESCRIPTION: Retrieves the current or possible resource list for the
* specified device. The UserFunction is called once for
* each resource in the list.
*
******************************************************************************/
ACPI_STATUS
AcpiWalkResources (
ACPI_HANDLE DeviceHandle,
char *Path,
ACPI_WALK_RESOURCE_CALLBACK UserFunction,
void *Context)
{
ACPI_STATUS Status;
ACPI_BUFFER Buffer = {ACPI_ALLOCATE_BUFFER, NULL};
ACPI_RESOURCE *Resource;
ACPI_FUNCTION_TRACE ("AcpiWalkResources");
if (!DeviceHandle ||
(ACPI_STRNCMP (Path, METHOD_NAME__CRS, sizeof (METHOD_NAME__CRS)) &&
ACPI_STRNCMP (Path, METHOD_NAME__PRS, sizeof (METHOD_NAME__PRS))))
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiRsGetMethodData (DeviceHandle, Path, &Buffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Resource = (ACPI_RESOURCE *) Buffer.Pointer;
for (;;)
{
if (!Resource || Resource->Id == ACPI_RSTYPE_END_TAG)
{
break;
}
Status = UserFunction (Resource, Context);
switch (Status)
{
case AE_OK:
case AE_CTRL_DEPTH:
/* Just keep going */
Status = AE_OK;
break;
case AE_CTRL_TERMINATE:
/* Exit now, with OK stats */
Status = AE_OK;
goto Cleanup;
default:
/* All others are valid exceptions */
goto Cleanup;
}
Resource = ACPI_NEXT_RESOURCE (Resource);
}
Cleanup:
AcpiOsFree (Buffer.Pointer);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiSetCurrentResources
*
* PARAMETERS: DeviceHandle - a handle to the device object for the
* device we are changing the resources of
* InBuffer - a pointer to a buffer containing the
* resources to be set for the device
*
* RETURN: Status
*
* DESCRIPTION: This function is called to set the current resources for a
* specific device. The caller must first acquire a handle for
* the desired device. The resource data is passed to the routine
* the buffer pointed to by the InBuffer variable.
*
******************************************************************************/
ACPI_STATUS
AcpiSetCurrentResources (
ACPI_HANDLE DeviceHandle,
ACPI_BUFFER *InBuffer)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("AcpiSetCurrentResources");
/*
* Must have a valid handle and buffer
*/
if ((!DeviceHandle) ||
(!InBuffer) ||
(!InBuffer->Pointer) ||
(!InBuffer->Length))
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiRsSetSrsMethodData (DeviceHandle, InBuffer);
return_ACPI_STATUS (Status);
}
#define ACPI_COPY_FIELD(Out, In, Field) ((Out)->Field = (In)->Field)
#define ACPI_COPY_ADDRESS(Out, In) \
ACPI_COPY_FIELD(Out, In, ResourceType); \
ACPI_COPY_FIELD(Out, In, ProducerConsumer); \
ACPI_COPY_FIELD(Out, In, Decode); \
ACPI_COPY_FIELD(Out, In, MinAddressFixed); \
ACPI_COPY_FIELD(Out, In, MaxAddressFixed); \
ACPI_COPY_FIELD(Out, In, Attribute); \
ACPI_COPY_FIELD(Out, In, Granularity); \
ACPI_COPY_FIELD(Out, In, MinAddressRange); \
ACPI_COPY_FIELD(Out, In, MaxAddressRange); \
ACPI_COPY_FIELD(Out, In, AddressTranslationOffset); \
ACPI_COPY_FIELD(Out, In, AddressLength); \
ACPI_COPY_FIELD(Out, In, ResourceSource);
/******************************************************************************
*
* FUNCTION: AcpiResourceToAddress64
*
* PARAMETERS: resource - Pointer to a resource
* out - Pointer to the users's return
* buffer (a struct
* acpi_resource_address64)
*
* RETURN: Status
*
* DESCRIPTION: If the resource is an address16, address32, or address64,
* copy it to the address64 return buffer. This saves the
* caller from having to duplicate code for different-sized
* addresses.
*
******************************************************************************/
ACPI_STATUS
AcpiResourceToAddress64 (
ACPI_RESOURCE *Resource,
ACPI_RESOURCE_ADDRESS64 *Out)
{
ACPI_RESOURCE_ADDRESS16 *Address16;
ACPI_RESOURCE_ADDRESS32 *Address32;
switch (Resource->Id) {
case ACPI_RSTYPE_ADDRESS16:
Address16 = (ACPI_RESOURCE_ADDRESS16 *) &Resource->Data;
ACPI_COPY_ADDRESS(Out, Address16);
break;
case ACPI_RSTYPE_ADDRESS32:
Address32 = (ACPI_RESOURCE_ADDRESS32 *) &Resource->Data;
ACPI_COPY_ADDRESS(Out, Address32);
break;
case ACPI_RSTYPE_ADDRESS64:
/* Simple copy for 64 bit source */
ACPI_MEMCPY (Out, &Resource->Data, sizeof (ACPI_RESOURCE_ADDRESS64));
break;
default:
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
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