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Diffstat (limited to 'sys/contrib/dev/acpica/exregion.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exregion.c | 561 |
1 files changed, 561 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exregion.c b/sys/contrib/dev/acpica/exregion.c new file mode 100644 index 000000000000..181ef59864de --- /dev/null +++ b/sys/contrib/dev/acpica/exregion.c @@ -0,0 +1,561 @@ + +/****************************************************************************** + * + * Module Name: amregion - ACPI default OpRegion (address space) handlers + * $Revision: 36 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __AMREGION_C__ + +#include "acpi.h" +#include "acinterp.h" +#include "amlcode.h" +#include "acnamesp.h" +#include "achware.h" +#include "acevents.h" + + +#define _COMPONENT INTERPRETER + MODULE_NAME ("amregion") + + +/******************************************************************************* + * + * FUNCTION: AcpiAmlSystemMemorySpaceHandler + * + * 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 +AcpiAmlSystemMemorySpaceHandler ( + UINT32 Function, + ACPI_INTEGER Address, + UINT32 BitWidth, + UINT32 *Value, + void *HandlerContext, + void *RegionContext) +{ + ACPI_STATUS Status = AE_OK; + void *LogicalAddrPtr = NULL; + MEM_HANDLER_CONTEXT *MemInfo = RegionContext; + UINT32 Length; + + + FUNCTION_TRACE ("AmlSystemMemorySpaceHandler"); + + + /* Validate and translate the bit width */ + + switch (BitWidth) + { + case 8: + Length = 1; + break; + + case 16: + Length = 2; + break; + + case 32: + Length = 4; + break; + + default: + DEBUG_PRINT (ACPI_ERROR, + ("AmlSystemMemorySpaceHandler: 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 < (ACPI_INTEGER) MemInfo->MappedPhysicalAddress) || + ((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 ((void *) (UINT32) Address, SYSMEM_REGION_WINDOW_SIZE, + (void **) &MemInfo->MappedLogicalAddress); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* TBD: should these pointers go to 64-bit in all cases ? */ + + MemInfo->MappedPhysicalAddress = (UINT8 *) (UINT32) Address; + MemInfo->MappedLength = SYSMEM_REGION_WINDOW_SIZE; + } + + + /* + * Generate a logical pointer corresponding to the address we want to + * access + */ + + /* TBD: should these pointers go to 64-bit in all cases ? */ + + LogicalAddrPtr = MemInfo->MappedLogicalAddress + + ((UINT8 *) (UINT32) Address - MemInfo->MappedPhysicalAddress); + + /* Perform the memory read or write */ + + switch (Function) + { + + case ADDRESS_SPACE_READ: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("Read (%d width) Address:0x%X\n", BitWidth, Address)); + + 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; + } + + break; + + + case ADDRESS_SPACE_WRITE: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("Write (%d width) Address:0x%p Value 0x%X\n", + BitWidth, Address, *Value)); + + 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; + } + + break; + + + default: + Status = AE_BAD_PARAMETER; + break; + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiAmlSystemIoSpaceHandler + * + * 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 +AcpiAmlSystemIoSpaceHandler ( + UINT32 Function, + ACPI_INTEGER Address, + UINT32 BitWidth, + UINT32 *Value, + void *HandlerContext, + void *RegionContext) +{ + ACPI_STATUS Status = AE_OK; + + + FUNCTION_TRACE ("AmlSystemIoSpaceHandler"); + + + /* Decode the function parameter */ + + switch (Function) + { + + case ADDRESS_SPACE_READ: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("Read(%d width) Address:0x%08x\n", BitWidth, Address)); + + switch (BitWidth) + { + /* I/O Port width */ + + case 8: + *Value = (UINT32) AcpiOsIn8 ((ACPI_IO_ADDRESS) Address); + break; + + case 16: + *Value = (UINT32) AcpiOsIn16 ((ACPI_IO_ADDRESS) Address); + break; + + case 32: + *Value = AcpiOsIn32 ((ACPI_IO_ADDRESS) Address); + break; + + default: + DEBUG_PRINT (ACPI_ERROR, + ("AmlSystemIoSpaceHandler: Invalid SystemIO width %d\n", + BitWidth)); + Status = AE_AML_OPERAND_VALUE; + } + + break; + + + case ADDRESS_SPACE_WRITE: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("Write(%d width) Address:0x%08x Value 0x%08x\n", + BitWidth, Address, *Value)); + + switch (BitWidth) + { + /* I/O Port width */ + case 8: + AcpiOsOut8 ((ACPI_IO_ADDRESS) Address, (UINT8) *Value); + break; + + case 16: + AcpiOsOut16 ((ACPI_IO_ADDRESS) Address, (UINT16) *Value); + break; + + case 32: + AcpiOsOut32 ((ACPI_IO_ADDRESS) Address, *Value); + break; + + default: + DEBUG_PRINT (ACPI_ERROR, ( + "AmlSystemIoSpaceHandler: Invalid SystemIO width %d\n", + BitWidth)); + Status = AE_AML_OPERAND_VALUE; + } + + break; + + + default: + Status = AE_BAD_PARAMETER; + break; + } + + return_ACPI_STATUS (Status); +} + +/******************************************************************************* + * + * FUNCTION: AcpiAmlPciConfigSpaceHandler + * + * 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 +AcpiAmlPciConfigSpaceHandler ( + UINT32 Function, + ACPI_INTEGER Address, + UINT32 BitWidth, + UINT32 *Value, + void *HandlerContext, + void *RegionContext) +{ + ACPI_STATUS Status = AE_OK; + UINT32 PciBus; + UINT32 DevFunc; + UINT8 PciReg; + PCI_HANDLER_CONTEXT *PCIContext; + + + FUNCTION_TRACE ("AmlPciConfigSpaceHandler"); + + /* + * The arguments to AcpiOs(Read|Write)PciCfg(Byte|Word|Dword) are: + * + * SegBus - 0xSSSSBBBB - SSSS is the PCI bus segment + * BBBB is the PCI bus number + * + * DevFunc - 0xDDDDFFFF - DDDD is the PCI device number + * FFFF is the PCI device function number + * + * RegNum - Config space register must be < 40h + * + * Value - input value for write, output for read + * + */ + + PCIContext = (PCI_HANDLER_CONTEXT *) RegionContext; + + PciBus = LOWORD(PCIContext->Seg) << 16; + PciBus |= LOWORD(PCIContext->Bus); + + DevFunc = PCIContext->DevFunc; + + PciReg = (UINT8) Address; + + switch (Function) + { + + case ADDRESS_SPACE_READ: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("R%d S(%04x) B(%04x) DF(%08x) R(%04x)\n", BitWidth, + PCIContext->Seg,PCIContext->Bus,PCIContext->DevFunc, PciReg)); + + *Value = 0; + + switch (BitWidth) + { + /* PCI Register width */ + + case 8: + Status = AcpiOsReadPciCfgByte (PciBus, DevFunc, PciReg, + (UINT8 *) Value); + break; + + case 16: + Status = AcpiOsReadPciCfgWord (PciBus, DevFunc, PciReg, + (UINT16 *) Value); + break; + + case 32: + Status = AcpiOsReadPciCfgDword (PciBus, DevFunc, PciReg, + Value); + break; + + default: + DEBUG_PRINT (ACPI_ERROR, + ("AmlPciConfigSpaceHandler: Invalid PCIConfig width %d\n", + BitWidth)); + Status = AE_AML_OPERAND_VALUE; + + } /* Switch bitWidth */ + + break; + + + case ADDRESS_SPACE_WRITE: + + DEBUG_PRINT ((TRACE_OPREGION | VERBOSE_INFO), + ("W%d S(%04x) B(%04x) DF(%08x) R(%04x) D(%08x)\n", BitWidth, + PCIContext->Seg,PCIContext->Bus,PCIContext->DevFunc, + PciReg,*Value)); + + switch (BitWidth) + { + /* PCI Register width */ + + case 8: + Status = AcpiOsWritePciCfgByte (PciBus, DevFunc, PciReg, + *(UINT8 *) Value); + break; + + case 16: + Status = AcpiOsWritePciCfgWord (PciBus, DevFunc, PciReg, + *(UINT16 *) Value); + break; + + case 32: + Status = AcpiOsWritePciCfgDword (PciBus, DevFunc, PciReg, + *Value); + break; + + default: + DEBUG_PRINT (ACPI_ERROR, ( + "AmlPciConfigSpaceHandler: Invalid PCIConfig width %d\n", + BitWidth)); + Status = AE_AML_OPERAND_VALUE; + + } /* Switch bitWidth */ + + break; + + + default: + + Status = AE_BAD_PARAMETER; + break; + + } + + return_ACPI_STATUS (Status); +} + |