638 lines
21 KiB
C
638 lines
21 KiB
C
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Module Name: exregion - ACPI default OpRegion (address space) handlers
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* 1. Copyright Notice
|
||
|
|
*
|
||
|
|
* Some or all of this work - Copyright (c) 1999 - 2010, 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 __EXREGION_C__
|
||
|
|
|
||
|
|
#include "acpi.h"
|
||
|
|
#include "accommon.h"
|
||
|
|
#include "acinterp.h"
|
||
|
|
|
||
|
|
|
||
|
|
#define _COMPONENT ACPI_EXECUTER
|
||
|
|
ACPI_MODULE_NAME ("exregion")
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExSystemMemorySpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the System Memory address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExSystemMemorySpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status = AE_OK;
|
||
|
|
void *LogicalAddrPtr = NULL;
|
||
|
|
ACPI_MEM_SPACE_CONTEXT *MemInfo = RegionContext;
|
||
|
|
UINT32 Length;
|
||
|
|
ACPI_SIZE MapLength;
|
||
|
|
ACPI_SIZE PageBoundaryMapLength;
|
||
|
|
#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
|
||
|
|
UINT32 Remainder;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (ExSystemMemorySpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
/* Validate and translate the bit width */
|
||
|
|
|
||
|
|
switch (BitWidth)
|
||
|
|
{
|
||
|
|
case 8:
|
||
|
|
Length = 1;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 16:
|
||
|
|
Length = 2;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 32:
|
||
|
|
Length = 4;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 64:
|
||
|
|
Length = 8;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
ACPI_ERROR ((AE_INFO, "Invalid SystemMemory width %u",
|
||
|
|
BitWidth));
|
||
|
|
return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
|
||
|
|
/*
|
||
|
|
* Hardware does not support non-aligned data transfers, we must verify
|
||
|
|
* the request.
|
||
|
|
*/
|
||
|
|
(void) AcpiUtShortDivide ((UINT64) Address, Length, NULL, &Remainder);
|
||
|
|
if (Remainder != 0)
|
||
|
|
{
|
||
|
|
return_ACPI_STATUS (AE_AML_ALIGNMENT);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Does the request fit into the cached memory mapping?
|
||
|
|
* Is 1) Address below the current mapping? OR
|
||
|
|
* 2) Address beyond the current mapping?
|
||
|
|
*/
|
||
|
|
if ((Address < MemInfo->MappedPhysicalAddress) ||
|
||
|
|
(((UINT64) Address + Length) >
|
||
|
|
((UINT64)
|
||
|
|
MemInfo->MappedPhysicalAddress + MemInfo->MappedLength)))
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* The request cannot be resolved by the current memory mapping;
|
||
|
|
* Delete the existing mapping and create a new one.
|
||
|
|
*/
|
||
|
|
if (MemInfo->MappedLength)
|
||
|
|
{
|
||
|
|
/* Valid mapping, delete it */
|
||
|
|
|
||
|
|
AcpiOsUnmapMemory (MemInfo->MappedLogicalAddress,
|
||
|
|
MemInfo->MappedLength);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* October 2009: Attempt to map from the requested address to the
|
||
|
|
* end of the region. However, we will never map more than one
|
||
|
|
* page, nor will we cross a page boundary.
|
||
|
|
*/
|
||
|
|
MapLength = (ACPI_SIZE)
|
||
|
|
((MemInfo->Address + MemInfo->Length) - Address);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If mapping the entire remaining portion of the region will cross
|
||
|
|
* a page boundary, just map up to the page boundary, do not cross.
|
||
|
|
* On some systems, crossing a page boundary while mapping regions
|
||
|
|
* can cause warnings if the pages have different attributes
|
||
|
|
* due to resource management.
|
||
|
|
*
|
||
|
|
* This has the added benefit of constraining a single mapping to
|
||
|
|
* one page, which is similar to the original code that used a 4k
|
||
|
|
* maximum window.
|
||
|
|
*/
|
||
|
|
PageBoundaryMapLength =
|
||
|
|
ACPI_ROUND_UP (Address, ACPI_DEFAULT_PAGE_SIZE) - Address;
|
||
|
|
if (PageBoundaryMapLength == 0)
|
||
|
|
{
|
||
|
|
PageBoundaryMapLength = ACPI_DEFAULT_PAGE_SIZE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (MapLength > PageBoundaryMapLength)
|
||
|
|
{
|
||
|
|
MapLength = PageBoundaryMapLength;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Create a new mapping starting at the address given */
|
||
|
|
|
||
|
|
MemInfo->MappedLogicalAddress = AcpiOsMapMemory (
|
||
|
|
(ACPI_PHYSICAL_ADDRESS) Address, MapLength);
|
||
|
|
if (!MemInfo->MappedLogicalAddress)
|
||
|
|
{
|
||
|
|
ACPI_ERROR ((AE_INFO,
|
||
|
|
"Could not map memory at 0x%8.8X%8.8X, size %u",
|
||
|
|
ACPI_FORMAT_NATIVE_UINT (Address), (UINT32) MapLength));
|
||
|
|
MemInfo->MappedLength = 0;
|
||
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Save the physical address and mapping size */
|
||
|
|
|
||
|
|
MemInfo->MappedPhysicalAddress = Address;
|
||
|
|
MemInfo->MappedLength = MapLength;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Generate a logical pointer corresponding to the address we want to
|
||
|
|
* access
|
||
|
|
*/
|
||
|
|
LogicalAddrPtr = MemInfo->MappedLogicalAddress +
|
||
|
|
((UINT64) Address - (UINT64) MemInfo->MappedPhysicalAddress);
|
||
|
|
|
||
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
||
|
|
"System-Memory (width %u) R/W %u Address=%8.8X%8.8X\n",
|
||
|
|
BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address)));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Perform the memory read or write
|
||
|
|
*
|
||
|
|
* Note: For machines that do not support non-aligned transfers, the target
|
||
|
|
* address was checked for alignment above. We do not attempt to break the
|
||
|
|
* transfer up into smaller (byte-size) chunks because the AML specifically
|
||
|
|
* asked for a transfer width that the hardware may require.
|
||
|
|
*/
|
||
|
|
switch (Function)
|
||
|
|
{
|
||
|
|
case ACPI_READ:
|
||
|
|
|
||
|
|
*Value = 0;
|
||
|
|
switch (BitWidth)
|
||
|
|
{
|
||
|
|
case 8:
|
||
|
|
*Value = (UINT64) ACPI_GET8 (LogicalAddrPtr);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 16:
|
||
|
|
*Value = (UINT64) ACPI_GET16 (LogicalAddrPtr);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 32:
|
||
|
|
*Value = (UINT64) ACPI_GET32 (LogicalAddrPtr);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 64:
|
||
|
|
*Value = (UINT64) ACPI_GET64 (LogicalAddrPtr);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* BitWidth was already validated */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ACPI_WRITE:
|
||
|
|
|
||
|
|
switch (BitWidth)
|
||
|
|
{
|
||
|
|
case 8:
|
||
|
|
ACPI_SET8 (LogicalAddrPtr) = (UINT8) *Value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 16:
|
||
|
|
ACPI_SET16 (LogicalAddrPtr) = (UINT16) *Value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 32:
|
||
|
|
ACPI_SET32 ( LogicalAddrPtr) = (UINT32) *Value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 64:
|
||
|
|
ACPI_SET64 (LogicalAddrPtr) = (UINT64) *Value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* BitWidth was already validated */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
Status = AE_BAD_PARAMETER;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExSystemIoSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the System IO address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExSystemIoSpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status = AE_OK;
|
||
|
|
UINT32 Value32;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (ExSystemIoSpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
||
|
|
"System-IO (width %u) R/W %u Address=%8.8X%8.8X\n",
|
||
|
|
BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address)));
|
||
|
|
|
||
|
|
/* Decode the function parameter */
|
||
|
|
|
||
|
|
switch (Function)
|
||
|
|
{
|
||
|
|
case ACPI_READ:
|
||
|
|
|
||
|
|
Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) Address,
|
||
|
|
&Value32, BitWidth);
|
||
|
|
*Value = Value32;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ACPI_WRITE:
|
||
|
|
|
||
|
|
Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) Address,
|
||
|
|
(UINT32) *Value, BitWidth);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
Status = AE_BAD_PARAMETER;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExPciConfigSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the PCI Config address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExPciConfigSpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status = AE_OK;
|
||
|
|
ACPI_PCI_ID *PciId;
|
||
|
|
UINT16 PciRegister;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (ExPciConfigSpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The arguments to AcpiOs(Read|Write)PciConfiguration are:
|
||
|
|
*
|
||
|
|
* PciSegment is the PCI bus segment range 0-31
|
||
|
|
* PciBus is the PCI bus number range 0-255
|
||
|
|
* PciDevice is the PCI device number range 0-31
|
||
|
|
* PciFunction is the PCI device function number
|
||
|
|
* PciRegister is the Config space register range 0-255 bytes
|
||
|
|
*
|
||
|
|
* Value - input value for write, output address for read
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
PciId = (ACPI_PCI_ID *) RegionContext;
|
||
|
|
PciRegister = (UINT16) (UINT32) Address;
|
||
|
|
|
||
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
||
|
|
"Pci-Config %u (%u) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
|
||
|
|
Function, BitWidth, PciId->Segment, PciId->Bus, PciId->Device,
|
||
|
|
PciId->Function, PciRegister));
|
||
|
|
|
||
|
|
switch (Function)
|
||
|
|
{
|
||
|
|
case ACPI_READ:
|
||
|
|
|
||
|
|
*Value = 0;
|
||
|
|
Status = AcpiOsReadPciConfiguration (PciId, PciRegister,
|
||
|
|
Value, BitWidth);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ACPI_WRITE:
|
||
|
|
|
||
|
|
Status = AcpiOsWritePciConfiguration (PciId, PciRegister,
|
||
|
|
*Value, BitWidth);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
Status = AE_BAD_PARAMETER;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExCmosSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the CMOS address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExCmosSpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status = AE_OK;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (ExCmosSpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExPciBarSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the PCI BarTarget address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExPciBarSpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status = AE_OK;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (ExPciBarSpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiExDataTableSpaceHandler
|
||
|
|
*
|
||
|
|
* PARAMETERS: 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
|
||
|
|
* HandlerContext - Pointer to Handler's context
|
||
|
|
* RegionContext - Pointer to context specific to the
|
||
|
|
* accessed region
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Handler for the Data Table address space (Op Region)
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiExDataTableSpaceHandler (
|
||
|
|
UINT32 Function,
|
||
|
|
ACPI_PHYSICAL_ADDRESS Address,
|
||
|
|
UINT32 BitWidth,
|
||
|
|
UINT64 *Value,
|
||
|
|
void *HandlerContext,
|
||
|
|
void *RegionContext)
|
||
|
|
{
|
||
|
|
ACPI_FUNCTION_TRACE (ExDataTableSpaceHandler);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Perform the memory read or write. The BitWidth was already
|
||
|
|
* validated.
|
||
|
|
*/
|
||
|
|
switch (Function)
|
||
|
|
{
|
||
|
|
case ACPI_READ:
|
||
|
|
|
||
|
|
ACPI_MEMCPY (ACPI_CAST_PTR (char, Value), ACPI_PHYSADDR_TO_PTR (Address),
|
||
|
|
ACPI_DIV_8 (BitWidth));
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ACPI_WRITE:
|
||
|
|
|
||
|
|
ACPI_MEMCPY (ACPI_PHYSADDR_TO_PTR (Address), ACPI_CAST_PTR (char, Value),
|
||
|
|
ACPI_DIV_8 (BitWidth));
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||
|
|
}
|
||
|
|
|
||
|
|
return_ACPI_STATUS (AE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
|