/****************************************************************************** * * Module Name: amprep - ACPI AML (p-code) execution - field prep utilities * $Revision: 72 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999, 2000, 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 __AMPREP_C__ #include "acpi.h" #include "acinterp.h" #include "amlcode.h" #include "acnamesp.h" #include "acparser.h" #define _COMPONENT INTERPRETER MODULE_NAME ("amprep") /******************************************************************************* * * FUNCTION: AcpiAmlDecodeFieldAccessType * * PARAMETERS: Access - Encoded field access bits * * RETURN: Field granularity (8, 16, or 32) * * DESCRIPTION: Decode the AccessType bits of a field definition. * ******************************************************************************/ static UINT32 AcpiAmlDecodeFieldAccessType ( UINT32 Access, UINT16 Length) { switch (Access) { case ACCESS_ANY_ACC: if (Length <= 8) { return (8); } else if (Length <= 16) { return (16); } else if (Length <= 32) { return (32); } else { return (8); } break; case ACCESS_BYTE_ACC: return (8); break; case ACCESS_WORD_ACC: return (16); break; case ACCESS_DWORD_ACC: return (32); break; default: /* Invalid field access type */ DEBUG_PRINT (ACPI_ERROR, ("AmlDecodeFieldAccessType: Unknown field access type %x\n", Access)); return (0); } } /******************************************************************************* * * FUNCTION: AcpiAmlPrepCommonFieldObjec * * PARAMETERS: ObjDesc - The field object * FieldFlags - Access, LockRule, or UpdateRule. * The format of a FieldFlag is described * in the ACPI specification * FieldPosition - Field position * FieldLength - Field length * * RETURN: Status * * DESCRIPTION: Initialize the areas of the field object that are common * to the various types of fields. * ******************************************************************************/ static ACPI_STATUS AcpiAmlPrepCommonFieldObject ( ACPI_OPERAND_OBJECT *ObjDesc, UINT8 FieldFlags, UINT8 FieldAttribute, UINT32 FieldPosition, UINT32 FieldLength) { UINT32 Granularity; FUNCTION_TRACE ("AmlPrepCommonFieldObject"); /* * Note: the structure being initialized is the * ACPI_COMMON_FIELD_INFO; Therefore, we can just use the Field union to * access this common area. No structure fields outside of the common area * are initialized by this procedure. */ /* Decode the FieldFlags */ ObjDesc->Field.Access = (UINT8) ((FieldFlags & ACCESS_TYPE_MASK) >> ACCESS_TYPE_SHIFT); ObjDesc->Field.LockRule = (UINT8) ((FieldFlags & LOCK_RULE_MASK) >> LOCK_RULE_SHIFT); ObjDesc->Field.UpdateRule = (UINT8) ((FieldFlags & UPDATE_RULE_MASK) >> UPDATE_RULE_SHIFT); /* Other misc fields */ ObjDesc->Field.Length = (UINT16) FieldLength; ObjDesc->Field.AccessAttribute = FieldAttribute; /* Decode the access type so we can compute offsets */ Granularity = AcpiAmlDecodeFieldAccessType (ObjDesc->Field.Access, ObjDesc->Field.Length); if (!Granularity) { return_ACPI_STATUS (AE_AML_OPERAND_VALUE); } /* Access granularity based fields */ ObjDesc->Field.Granularity = (UINT8) Granularity; ObjDesc->Field.BitOffset = (UINT8) (FieldPosition % Granularity); ObjDesc->Field.Offset = (UINT32) FieldPosition / Granularity; return_ACPI_STATUS (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiAmlPrepDefFieldValue * * PARAMETERS: Node - Owning Node * Region - Region in which field is being defined * FieldFlags - Access, LockRule, or UpdateRule. * The format of a FieldFlag is described * in the ACPI specification * FieldPosition - Field position * FieldLength - Field length * * RETURN: Status * * DESCRIPTION: Construct an ACPI_OPERAND_OBJECT of type DefField and * connect it to the parent Node. * ******************************************************************************/ ACPI_STATUS AcpiAmlPrepDefFieldValue ( ACPI_NAMESPACE_NODE *Node, ACPI_HANDLE Region, UINT8 FieldFlags, UINT8 FieldAttribute, UINT32 FieldPosition, UINT32 FieldLength) { ACPI_OPERAND_OBJECT *ObjDesc; UINT32 Type; ACPI_STATUS Status; FUNCTION_TRACE ("AmlPrepDefFieldValue"); /* Parameter validation */ if (!Region) { DEBUG_PRINT (ACPI_ERROR, ("AmlPrepDefFieldValue: null Region\n")); return_ACPI_STATUS (AE_AML_NO_OPERAND); } Type = AcpiNsGetType (Region); if (Type != ACPI_TYPE_REGION) { DEBUG_PRINT (ACPI_ERROR, ("AmlPrepDefFieldValue: Needed Region, found type %X %s\n", Type, AcpiCmGetTypeName (Type))); return_ACPI_STATUS (AE_AML_OPERAND_TYPE); } /* Allocate a new object */ ObjDesc = AcpiCmCreateInternalObject (INTERNAL_TYPE_DEF_FIELD); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* ObjDesc and Region valid */ DUMP_OPERANDS ((ACPI_OPERAND_OBJECT **) &Node, IMODE_EXECUTE, "AmlPrepDefFieldValue", 1, "case DefField"); DUMP_OPERANDS ((ACPI_OPERAND_OBJECT **) &Region, IMODE_EXECUTE, "AmlPrepDefFieldValue", 1, "case DefField"); /* Initialize areas of the object that are common to all fields */ Status = AcpiAmlPrepCommonFieldObject (ObjDesc, FieldFlags, FieldAttribute, FieldPosition, FieldLength); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Initialize areas of the object that are specific to this field type */ ObjDesc->Field.Container = AcpiNsGetAttachedObject (Region); /* An additional reference for the container */ AcpiCmAddReference (ObjDesc->Field.Container); /* Debug info */ DEBUG_PRINT (ACPI_INFO, ("AmlPrepDefFieldValue: bitoff=%X off=%X gran=%X\n", ObjDesc->Field.BitOffset, ObjDesc->Field.Offset, ObjDesc->Field.Granularity)); DEBUG_PRINT (ACPI_INFO, ("AmlPrepDefFieldValue: set NamedObj %p (%4.4s) val = %p\n", Node, &(Node->Name), ObjDesc)); DUMP_STACK_ENTRY (ObjDesc); DUMP_ENTRY (Region, ACPI_INFO); DEBUG_PRINT (ACPI_INFO, ("\t%p \n", ObjDesc->Field.Container)); if (ObjDesc->Field.Container) { DUMP_STACK_ENTRY (ObjDesc->Field.Container); } DEBUG_PRINT (ACPI_INFO, ("============================================================\n")); /* * Store the constructed descriptor (ObjDesc) into the NamedObj whose * handle is on TOS, preserving the current type of that NamedObj. */ Status = AcpiNsAttachObject ((ACPI_HANDLE) Node, ObjDesc, (UINT8) AcpiNsGetType ((ACPI_HANDLE) Node)); return_ACPI_STATUS (Status); } /******************************************************************************* * * FUNCTION: AcpiAmlPrepBankFieldValue * * PARAMETERS: Node - Owning Node * Region - Region in which field is being defined * BankReg - Bank selection register * BankVal - Value to store in selection register * FieldFlags - Access, LockRule, or UpdateRule * FieldPosition - Field position * FieldLength - Field length * * RETURN: Status * * DESCRIPTION: Construct an ACPI_OPERAND_OBJECT of type BankField and * connect it to the parent Node. * ******************************************************************************/ ACPI_STATUS AcpiAmlPrepBankFieldValue ( ACPI_NAMESPACE_NODE *Node, ACPI_HANDLE Region, ACPI_HANDLE BankReg, UINT32 BankVal, UINT8 FieldFlags, UINT8 FieldAttribute, UINT32 FieldPosition, UINT32 FieldLength) { ACPI_OPERAND_OBJECT *ObjDesc; UINT32 Type; ACPI_STATUS Status; FUNCTION_TRACE ("AmlPrepBankFieldValue"); /* Parameter validation */ if (!Region) { DEBUG_PRINT (ACPI_ERROR, ("AmlPrepBankFieldValue: null Region\n")); return_ACPI_STATUS (AE_AML_NO_OPERAND); } Type = AcpiNsGetType (Region); if (Type != ACPI_TYPE_REGION) { DEBUG_PRINT (ACPI_ERROR, ("AmlPrepBankFieldValue: Needed Region, found type %X %s\n", Type, AcpiCmGetTypeName (Type))); return_ACPI_STATUS (AE_AML_OPERAND_TYPE); } /* Allocate a new object */ ObjDesc = AcpiCmCreateInternalObject (INTERNAL_TYPE_BANK_FIELD); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* ObjDesc and Region valid */ DUMP_OPERANDS ((ACPI_OPERAND_OBJECT **) &Node, IMODE_EXECUTE, "AmlPrepBankFieldValue", 1, "case BankField"); DUMP_OPERANDS ((ACPI_OPERAND_OBJECT **) &Region, IMODE_EXECUTE, "AmlPrepBankFieldValue", 1, "case BankField"); /* Initialize areas of the object that are common to all fields */ Status = AcpiAmlPrepCommonFieldObject (ObjDesc, FieldFlags, FieldAttribute, FieldPosition, FieldLength); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Initialize areas of the object that are specific to this field type */ ObjDesc->BankField.Value = BankVal; ObjDesc->BankField.Container = AcpiNsGetAttachedObject (Region); ObjDesc->BankField.BankSelect = AcpiNsGetAttachedObject (BankReg); /* An additional reference for the container and bank select */ /* TBD: [Restructure] is "BankSelect" ever a real internal object?? */ AcpiCmAddReference (ObjDesc->BankField.Container); AcpiCmAddReference (ObjDesc->BankField.BankSelect); /* Debug info */ DEBUG_PRINT (ACPI_INFO, ("AmlPrepBankFieldValue: bitoff=%X off=%X gran=%X\n", ObjDesc->BankField.BitOffset, ObjDesc->BankField.Offset, ObjDesc->Field.Granularity)); DEBUG_PRINT (ACPI_INFO, ("AmlPrepBankFieldValue: set NamedObj %p (%4.4s) val = %p\n", Node, &(Node->Name), ObjDesc)); DUMP_STACK_ENTRY (ObjDesc); DUMP_ENTRY (Region, ACPI_INFO); DUMP_ENTRY (BankReg, ACPI_INFO); DEBUG_PRINT (ACPI_INFO, ("============================================================\n")); /* * Store the constructed descriptor (ObjDesc) into the NamedObj whose * handle is on TOS, preserving the current type of that NamedObj. */ Status = AcpiNsAttachObject ((ACPI_HANDLE) Node, ObjDesc, (UINT8) AcpiNsGetType ((ACPI_HANDLE) Node)); return_ACPI_STATUS (Status); } /******************************************************************************* * * FUNCTION: AcpiAmlPrepIndexFieldValue * * PARAMETERS: Node - Owning Node * IndexReg - Index register * DataReg - Data register * FieldFlags - Access, LockRule, or UpdateRule * FieldPosition - Field position * FieldLength - Field length * * RETURN: Status * * DESCRIPTION: Construct an ACPI_OPERAND_OBJECT of type IndexField and * connect it to the parent Node. * ******************************************************************************/ ACPI_STATUS AcpiAmlPrepIndexFieldValue ( ACPI_NAMESPACE_NODE *Node, ACPI_HANDLE IndexReg, ACPI_HANDLE DataReg, UINT8 FieldFlags, UINT8 FieldAttribute, UINT32 FieldPosition, UINT32 FieldLength) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; FUNCTION_TRACE ("AmlPrepIndexFieldValue"); /* Parameter validation */ if (!IndexReg || !DataReg) { DEBUG_PRINT (ACPI_ERROR, ("AmlPrepIndexFieldValue: null handle\n")); return_ACPI_STATUS (AE_AML_NO_OPERAND); } /* Allocate a new object descriptor */ ObjDesc = AcpiCmCreateInternalObject (INTERNAL_TYPE_INDEX_FIELD); if (!ObjDesc) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Initialize areas of the object that are common to all fields */ Status = AcpiAmlPrepCommonFieldObject (ObjDesc, FieldFlags, FieldAttribute, FieldPosition, FieldLength); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Initialize areas of the object that are specific to this field type */ ObjDesc->IndexField.Value = (UINT32) (FieldPosition / ObjDesc->Field.Granularity); ObjDesc->IndexField.Index = IndexReg; ObjDesc->IndexField.Data = DataReg; /* Debug info */ DEBUG_PRINT (ACPI_INFO, ("AmlPrepIndexFieldValue: bitoff=%X off=%X gran=%X\n", ObjDesc->IndexField.BitOffset, ObjDesc->IndexField.Offset, ObjDesc->Field.Granularity)); DEBUG_PRINT (ACPI_INFO, ("AmlPrepIndexFieldValue: set NamedObj %p (%4.4s) val = %p\n", Node, &(Node->Name), ObjDesc)); DUMP_STACK_ENTRY (ObjDesc); DUMP_ENTRY (IndexReg, ACPI_INFO); DUMP_ENTRY (DataReg, ACPI_INFO); DEBUG_PRINT (ACPI_INFO, ("============================================================\n")); /* * Store the constructed descriptor (ObjDesc) into the NamedObj whose * handle is on TOS, preserving the current type of that NamedObj. */ Status = AcpiNsAttachObject ((ACPI_HANDLE) Node, ObjDesc, (UINT8) AcpiNsGetType ((ACPI_HANDLE) Node)); return_ACPI_STATUS (Status); }