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-
-/******************************************************************************
- *
- * Module Name: exregion - ACPI default OpRegion (address space) handlers
- * $Revision: 82 $
- *
- *****************************************************************************/
-
-/******************************************************************************
- *
- * 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 __EXREGION_C__
-
-#include "acpi.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,
- ACPI_INTEGER *Value,
- void *HandlerContext,
- void *RegionContext)
-{
- ACPI_STATUS Status = AE_OK;
- void *LogicalAddrPtr = NULL;
- ACPI_MEM_SPACE_CONTEXT *MemInfo = RegionContext;
- UINT32 Length;
- ACPI_SIZE WindowSize;
-#ifndef _HW_ALIGNMENT_SUPPORT
- 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_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid SystemMemory width %d\n",
- BitWidth));
- return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
- }
-
-
-#ifndef _HW_ALIGNMENT_SUPPORT
- /*
- * Hardware does not support non-aligned data transfers, we must verify
- * the request.
- */
- (void) AcpiUtShortDivide ((ACPI_INTEGER *) &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) ||
- (((ACPI_INTEGER) Address + Length) >
- ((ACPI_INTEGER) 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);
- }
-
- /*
- * Don't attempt to map memory beyond the end of the region, and
- * constrain the maximum mapping size to something reasonable.
- */
- WindowSize = (ACPI_SIZE) ((MemInfo->Address + MemInfo->Length) - Address);
- if (WindowSize > ACPI_SYSMEM_REGION_WINDOW_SIZE)
- {
- WindowSize = ACPI_SYSMEM_REGION_WINDOW_SIZE;
- }
-
- /* Create a new mapping starting at the address given */
-
- Status = AcpiOsMapMemory (Address, WindowSize,
- (void **) &MemInfo->MappedLogicalAddress);
- if (ACPI_FAILURE (Status))
- {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not map memory at %8.8X%8.8X, size %X\n",
- ACPI_HIDWORD (Address), ACPI_LODWORD (Address), (UINT32) WindowSize));
- MemInfo->MappedLength = 0;
- return_ACPI_STATUS (Status);
- }
-
- /* Save the physical address and mapping size */
-
- MemInfo->MappedPhysicalAddress = Address;
- MemInfo->MappedLength = WindowSize;
- }
-
- /*
- * Generate a logical pointer corresponding to the address we want to
- * access
- */
- LogicalAddrPtr = MemInfo->MappedLogicalAddress +
- ((ACPI_INTEGER) Address - (ACPI_INTEGER) MemInfo->MappedPhysicalAddress);
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "SystemMemory %d (%d width) Address=%8.8X%8.8X\n", Function, BitWidth,
- ACPI_HIDWORD (Address), ACPI_LODWORD (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 = (ACPI_INTEGER) *((UINT8 *) LogicalAddrPtr);
- break;
-
- case 16:
- *Value = (ACPI_INTEGER) *((UINT16 *) LogicalAddrPtr);
- break;
-
- case 32:
- *Value = (ACPI_INTEGER) *((UINT32 *) LogicalAddrPtr);
- break;
-
-#if ACPI_MACHINE_WIDTH != 16
- case 64:
- *Value = (ACPI_INTEGER) *((UINT64 *) LogicalAddrPtr);
- break;
-#endif
- default:
- /* BitWidth was already validated */
- break;
- }
- break;
-
- case ACPI_WRITE:
-
- switch (BitWidth)
- {
- case 8:
- *(UINT8 *) LogicalAddrPtr = (UINT8) *Value;
- break;
-
- case 16:
- *(UINT16 *) LogicalAddrPtr = (UINT16) *Value;
- break;
-
- case 32:
- *(UINT32 *) LogicalAddrPtr = (UINT32) *Value;
- break;
-
-#if ACPI_MACHINE_WIDTH != 16
- case 64:
- *(UINT64 *) LogicalAddrPtr = (UINT64) *Value;
- break;
-#endif
-
- 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,
- ACPI_INTEGER *Value,
- void *HandlerContext,
- void *RegionContext)
-{
- ACPI_STATUS Status = AE_OK;
-
-
- ACPI_FUNCTION_TRACE ("ExSystemIoSpaceHandler");
-
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "SystemIO %d (%d width) Address=%8.8X%8.8X\n", Function, BitWidth,
- ACPI_HIDWORD (Address), ACPI_LODWORD (Address)));
-
- /* Decode the function parameter */
-
- switch (Function)
- {
- case ACPI_READ:
-
- *Value = 0;
- Status = AcpiOsReadPort ((ACPI_IO_ADDRESS) Address, Value, BitWidth);
- break;
-
- case ACPI_WRITE:
-
- Status = AcpiOsWritePort ((ACPI_IO_ADDRESS) Address, *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,
- ACPI_INTEGER *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,
- "PciConfig %d (%d) 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,
- ACPI_INTEGER *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,
- ACPI_INTEGER *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,
- ACPI_INTEGER *Value,
- void *HandlerContext,
- void *RegionContext)
-{
- ACPI_STATUS Status = AE_OK;
- UINT32 ByteWidth = ACPI_DIV_8 (BitWidth);
- UINT32 i;
- char *LogicalAddrPtr;
-
-
- ACPI_FUNCTION_TRACE ("ExDataTableSpaceHandler");
-
-
- LogicalAddrPtr = ACPI_PHYSADDR_TO_PTR (Address);
-
-
- /* Perform the memory read or write */
-
- switch (Function)
- {
- case ACPI_READ:
-
- for (i = 0; i < ByteWidth; i++)
- {
- ((char *) Value) [i] = LogicalAddrPtr[i];
- }
- break;
-
- case ACPI_WRITE:
- default:
-
- return_ACPI_STATUS (AE_SUPPORT);
- }
-
- return_ACPI_STATUS (Status);
-}
-
-
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