/****************************************************************************** * * Module Name: exregion - ACPI default OpRegion (address space) handlers * $Revision: 64 $ * *****************************************************************************/ /****************************************************************************** * * 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 __EXREGION_C__ #include "acpi.h" #include "acinterp.h" #include "amlcode.h" #include "acnamesp.h" #include "achware.h" #include "acevents.h" #define _COMPONENT ACPI_EXECUTER 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; 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); break; } /* * 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); } MemInfo->MappedLength = 0; /* In case of failure below */ /* Create a new mapping starting at the address given */ Status = AcpiOsMapMemory (Address, SYSMEM_REGION_WINDOW_SIZE, (void **) &MemInfo->MappedLogicalAddress); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Save the physical address and mapping size */ MemInfo->MappedPhysicalAddress = Address; MemInfo->MappedLength = SYSMEM_REGION_WINDOW_SIZE; } /* * 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, HIDWORD (Address), LODWORD (Address))); /* Perform the memory read or write */ switch (Function) { case ACPI_READ: switch (BitWidth) { case 8: *Value = (UINT32)* (UINT8 *) LogicalAddrPtr; break; case 16: MOVE_UNALIGNED16_TO_32 (Value, LogicalAddrPtr); break; case 32: MOVE_UNALIGNED32_TO_32 (Value, LogicalAddrPtr); break; case 64: MOVE_UNALIGNED64_TO_64 (Value, LogicalAddrPtr); break; } break; case ACPI_WRITE: switch (BitWidth) { case 8: *(UINT8 *) LogicalAddrPtr = (UINT8) *Value; break; case 16: MOVE_UNALIGNED16_TO_16 (LogicalAddrPtr, Value); break; case 32: MOVE_UNALIGNED32_TO_32 (LogicalAddrPtr, Value); break; case 64: MOVE_UNALIGNED64_TO_64 (LogicalAddrPtr, Value); 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; FUNCTION_TRACE ("ExSystemIoSpaceHandler"); ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "SystemIO %d (%d width) Address=%8.8X%8.8X\n", Function, BitWidth, HIDWORD (Address), 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; 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) 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; 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; FUNCTION_TRACE ("ExPciBarSpaceHandler"); return_ACPI_STATUS (Status); }