/****************************************************************************** * * Module Name: amstorob - AML Interpreter object store support, store to object * $Revision: 23 $ * *****************************************************************************/ /****************************************************************************** * * 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 __AMSTOROB_C__ #include "acpi.h" #include "acparser.h" #include "acdispat.h" #include "acinterp.h" #include "amlcode.h" #include "acnamesp.h" #include "actables.h" #define _COMPONENT INTERPRETER MODULE_NAME ("amstorob") /******************************************************************************* * * FUNCTION: AcpiAmlCopyBufferToBuffer * * PARAMETERS: SourceDesc - Source object to copy * TargetDesc - Destination object of the copy * * RETURN: Status * * DESCRIPTION: Copy a buffer object to another buffer object. * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyBufferToBuffer ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *TargetDesc) { UINT32 Length; UINT8 *Buffer; /* * We know that SourceDesc is a buffer by now */ Buffer = (UINT8 *) SourceDesc->Buffer.Pointer; Length = SourceDesc->Buffer.Length; /* * If target is a buffer of length zero, allocate a new * buffer of the proper length */ if (TargetDesc->Buffer.Length == 0) { TargetDesc->Buffer.Pointer = AcpiCmAllocate (Length); if (!TargetDesc->Buffer.Pointer) { return (AE_NO_MEMORY); } TargetDesc->Buffer.Length = Length; } /* * Buffer is a static allocation, * only place what will fit in the buffer. */ if (Length <= TargetDesc->Buffer.Length) { /* Clear existing buffer and copy in the new one */ MEMSET(TargetDesc->Buffer.Pointer, 0, TargetDesc->Buffer.Length); MEMCPY(TargetDesc->Buffer.Pointer, Buffer, Length); } else { /* * Truncate the source, copy only what will fit */ MEMCPY(TargetDesc->Buffer.Pointer, Buffer, TargetDesc->Buffer.Length); DEBUG_PRINT (ACPI_INFO, ("AmlCopyBufferToBuffer: Truncating src buffer from %X to %X\n", Length, TargetDesc->Buffer.Length)); } return (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiAmlCopyStringToString * * PARAMETERS: SourceDesc - Source object to copy * TargetDesc - Destination object of the copy * * RETURN: Status * * DESCRIPTION: Copy a String object to another String object * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyStringToString ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *TargetDesc) { UINT32 Length; UINT8 *Buffer; /* * We know that SourceDesc is a string by now. */ Buffer = (UINT8 *) SourceDesc->String.Pointer; Length = SourceDesc->String.Length; /* * Setting a string value replaces the old string */ if (Length < TargetDesc->String.Length) { /* Clear old string and copy in the new one */ MEMSET(TargetDesc->String.Pointer, 0, TargetDesc->String.Length); MEMCPY(TargetDesc->String.Pointer, Buffer, Length); } else { /* * Free the current buffer, then allocate a buffer * large enough to hold the value */ if (TargetDesc->String.Pointer && !AcpiTbSystemTablePointer (TargetDesc->String.Pointer)) { /* * Only free if not a pointer into the DSDT */ AcpiCmFree(TargetDesc->String.Pointer); } TargetDesc->String.Pointer = AcpiCmAllocate (Length + 1); if (!TargetDesc->String.Pointer) { return (AE_NO_MEMORY); } TargetDesc->String.Length = Length; MEMCPY(TargetDesc->String.Pointer, Buffer, Length); } return (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiAmlCopyIntegerToIndexField * * PARAMETERS: SourceDesc - Source object to copy * TargetDesc - Destination object of the copy * * RETURN: Status * * DESCRIPTION: Write an Integer to an Index Field * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyIntegerToIndexField ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *TargetDesc) { ACPI_STATUS Status; BOOLEAN Locked; /* * Get the global lock if needed */ Locked = AcpiAmlAcquireGlobalLock (TargetDesc->IndexField.LockRule); /* * Set Index value to select proper Data register * perform the update (Set index) */ Status = AcpiAmlAccessNamedField (ACPI_WRITE, TargetDesc->IndexField.Index, &TargetDesc->IndexField.Value, sizeof (TargetDesc->IndexField.Value)); if (ACPI_SUCCESS (Status)) { /* SetIndex was successful, next set Data value */ Status = AcpiAmlAccessNamedField (ACPI_WRITE, TargetDesc->IndexField.Data, &SourceDesc->Integer.Value, sizeof (SourceDesc->Integer.Value)); DEBUG_PRINT (ACPI_INFO, ("AmlCopyIntegerToIndexField: IndexField: set data returned %s\n", AcpiCmFormatException (Status))); } else { DEBUG_PRINT (ACPI_INFO, ("AmlCopyIntegerToIndexField: IndexField: set index returned %s\n", AcpiCmFormatException (Status))); } /* * Release global lock if we acquired it earlier */ AcpiAmlReleaseGlobalLock (Locked); return (Status); } /******************************************************************************* * * FUNCTION: AcpiAmlCopyIntegerToBankField * * PARAMETERS: SourceDesc - Source object to copy * TargetDesc - Destination object of the copy * * RETURN: Status * * DESCRIPTION: Write an Integer to a Bank Field * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyIntegerToBankField ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *TargetDesc) { ACPI_STATUS Status; BOOLEAN Locked; /* * Get the global lock if needed */ Locked = AcpiAmlAcquireGlobalLock (TargetDesc->IndexField.LockRule); /* * Set Bank value to select proper Bank * Perform the update (Set Bank Select) */ Status = AcpiAmlAccessNamedField (ACPI_WRITE, TargetDesc->BankField.BankSelect, &TargetDesc->BankField.Value, sizeof (TargetDesc->BankField.Value)); if (ACPI_SUCCESS (Status)) { /* Set bank select successful, set data value */ Status = AcpiAmlAccessNamedField (ACPI_WRITE, TargetDesc->BankField.BankSelect, &SourceDesc->BankField.Value, sizeof (SourceDesc->BankField.Value)); } else { DEBUG_PRINT (ACPI_INFO, ("AmlCopyIntegerToBankField: BankField: set bakn returned %s\n", AcpiCmFormatException (Status))); } /* * Release global lock if we acquired it earlier */ AcpiAmlReleaseGlobalLock (Locked); return (Status); } /******************************************************************************* * * FUNCTION: AcpiAmlCopyDataToNamedField * * PARAMETERS: SourceDesc - Source object to copy * Node - Destination Namespace node * * RETURN: Status * * DESCRIPTION: Copy raw data to a Named Field. No implicit conversion * is performed on the source object * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyDataToNamedField ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_NAMESPACE_NODE *Node) { ACPI_STATUS Status; BOOLEAN Locked; UINT32 Length; UINT8 *Buffer; /* * Named fields (CreateXxxField) - We don't perform any conversions on the * source operand, just use the raw data */ switch (SourceDesc->Common.Type) { case ACPI_TYPE_INTEGER: Buffer = (UINT8 *) &SourceDesc->Integer.Value; Length = sizeof (SourceDesc->Integer.Value); break; case ACPI_TYPE_BUFFER: Buffer = (UINT8 *) SourceDesc->Buffer.Pointer; Length = SourceDesc->Buffer.Length; break; case ACPI_TYPE_STRING: Buffer = (UINT8 *) SourceDesc->String.Pointer; Length = SourceDesc->String.Length; break; default: return (AE_TYPE); } /* * Get the global lock if needed before the update * TBD: not needed! */ Locked = AcpiAmlAcquireGlobalLock (SourceDesc->Field.LockRule); Status = AcpiAmlAccessNamedField (ACPI_WRITE, Node, Buffer, Length); AcpiAmlReleaseGlobalLock (Locked); return (Status); } /******************************************************************************* * * FUNCTION: AcpiAmlCopyIntegerToFieldUnit * * PARAMETERS: SourceDesc - Source object to copy * TargetDesc - Destination object of the copy * * RETURN: Status * * DESCRIPTION: Write an Integer to a Field Unit. * ******************************************************************************/ ACPI_STATUS AcpiAmlCopyIntegerToFieldUnit ( ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *TargetDesc) { ACPI_STATUS Status = AE_OK; UINT8 *Location = NULL; UINT32 Mask; UINT32 NewValue; BOOLEAN Locked = FALSE; FUNCTION_TRACE ("AmlCopyIntegerToFieldUnit"); /* * If the Field Buffer and Index have not been previously evaluated, * evaluate them and save the results. */ if (!(TargetDesc->Common.Flags & AOPOBJ_DATA_VALID)) { Status = AcpiDsGetFieldUnitArguments (TargetDesc); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } } if ((!TargetDesc->FieldUnit.Container || ACPI_TYPE_BUFFER != TargetDesc->FieldUnit.Container->Common.Type)) { DEBUG_PRINT (ACPI_ERROR, ("Null Container or wrong type: %p", TargetDesc->FieldUnit.Container)); if (TargetDesc->FieldUnit.Container) { DEBUG_PRINT_RAW (ACPI_ERROR, (" Type %X", TargetDesc->FieldUnit.Container->Common.Type)); } DEBUG_PRINT_RAW (ACPI_ERROR, ("\n")); return_ACPI_STATUS (AE_AML_INTERNAL); } /* * Get the global lock if needed */ Locked = AcpiAmlAcquireGlobalLock (TargetDesc->FieldUnit.LockRule); /* * TBD: [Unhandled] REMOVE this limitation * Make sure the operation is within the limits of our implementation * this is not a Spec limitation!! */ if (TargetDesc->FieldUnit.Length + TargetDesc->FieldUnit.BitOffset > 32) { DEBUG_PRINT (ACPI_ERROR, ("AmlCopyIntegerToFieldUnit: FieldUnit: Implementation limitation - Field exceeds UINT32\n")); return_ACPI_STATUS (AE_NOT_IMPLEMENTED); } /* Field location is (base of buffer) + (byte offset) */ Location = TargetDesc->FieldUnit.Container->Buffer.Pointer + TargetDesc->FieldUnit.Offset; /* * Construct Mask with 1 bits where the field is, * 0 bits elsewhere */ Mask = ((UINT32) 1 << TargetDesc->FieldUnit.Length) - ((UINT32)1 << TargetDesc->FieldUnit.BitOffset); DEBUG_PRINT (TRACE_EXEC, ("** Store %lx in buffer %p byte %ld bit %X width %d addr %p mask %08lx\n", SourceDesc->Integer.Value, TargetDesc->FieldUnit.Container->Buffer.Pointer, TargetDesc->FieldUnit.Offset, TargetDesc->FieldUnit.BitOffset, TargetDesc->FieldUnit.Length,Location, Mask)); /* Zero out the field in the buffer */ MOVE_UNALIGNED32_TO_32 (&NewValue, Location); NewValue &= ~Mask; /* * Shift and mask the new value into position, * and or it into the buffer. */ NewValue |= (SourceDesc->Integer.Value << TargetDesc->FieldUnit.BitOffset) & Mask; /* Store back the value */ MOVE_UNALIGNED32_TO_32 (Location, &NewValue); DEBUG_PRINT (TRACE_EXEC, ("New Field value %08lx\n", NewValue)); return_ACPI_STATUS (AE_OK); }