diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exmonad.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exmonad.c | 1083 |
1 files changed, 0 insertions, 1083 deletions
diff --git a/sys/contrib/dev/acpica/exmonad.c b/sys/contrib/dev/acpica/exmonad.c deleted file mode 100644 index 3e6a969da510..000000000000 --- a/sys/contrib/dev/acpica/exmonad.c +++ /dev/null @@ -1,1083 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exmonad - ACPI AML execution for monadic (1 operand) operators - * $Revision: 113 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 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 __EXMONAD_C__ - -#include "acpi.h" -#include "acparser.h" -#include "acdispat.h" -#include "acinterp.h" -#include "amlcode.h" -#include "acnamesp.h" - - -#define _COMPONENT ACPI_EXECUTER - MODULE_NAME ("exmonad") - - -/******************************************************************************* - * - * FUNCTION: AcpiExGetObjectReference - * - * PARAMETERS: ObjDesc - Create a reference to this object - * RetDesc - Where to store the reference - * - * RETURN: Status - * - * DESCRIPTION: Obtain and return a "reference" to the target object - * Common code for the RefOfOp and the CondRefOfOp. - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiExGetObjectReference ( - ACPI_OPERAND_OBJECT *ObjDesc, - ACPI_OPERAND_OBJECT **RetDesc, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - - - FUNCTION_TRACE_PTR ("ExGetObjectReference", ObjDesc); - - - if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_INTERNAL)) - { - if (ObjDesc->Common.Type != INTERNAL_TYPE_REFERENCE) - { - *RetDesc = NULL; - Status = AE_TYPE; - goto Cleanup; - } - - /* - * Not a Name -- an indirect name pointer would have - * been converted to a direct name pointer in AcpiExResolveOperands - */ - switch (ObjDesc->Reference.Opcode) - { - case AML_LOCAL_OP: - case AML_ARG_OP: - - *RetDesc = (void *) AcpiDsMethodDataGetNode (ObjDesc->Reference.Opcode, - ObjDesc->Reference.Offset, WalkState); - break; - - default: - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "(Internal) Unknown Ref subtype %02x\n", - ObjDesc->Reference.Opcode)); - *RetDesc = NULL; - Status = AE_AML_INTERNAL; - goto Cleanup; - } - - } - - else if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) - { - /* Must be a named object; Just return the Node */ - - *RetDesc = ObjDesc; - } - - else - { - *RetDesc = NULL; - Status = AE_TYPE; - } - - -Cleanup: - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p Ref=%p\n", ObjDesc, *RetDesc)); - return_ACPI_STATUS (Status); -} - -#define ObjDesc Operand[0] -#define ResDesc Operand[1] - - -/******************************************************************************* - * - * FUNCTION: AcpiExMonadic1 - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on - * object stack - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExMonadic1 ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_STATUS Status; - - - FUNCTION_TRACE_PTR ("ExMonadic1", WALK_OPERANDS); - - - /* Examine the opcode */ - - switch (WalkState->Opcode) - { - case AML_RELEASE_OP: /* Release (MutexObject) */ - - Status = AcpiExReleaseMutex (ObjDesc, WalkState); - break; - - - case AML_RESET_OP: /* Reset (EventObject) */ - - Status = AcpiExSystemResetEvent (ObjDesc); - break; - - - case AML_SIGNAL_OP: /* Signal (EventObject) */ - - Status = AcpiExSystemSignalEvent (ObjDesc); - break; - - - case AML_SLEEP_OP: /* Sleep (MsecTime) */ - - AcpiExSystemDoSuspend ((UINT32) ObjDesc->Integer.Value); - break; - - - case AML_STALL_OP: /* Stall (UsecTime) */ - - AcpiExSystemDoStall ((UINT32) ObjDesc->Integer.Value); - break; - - - default: /* Unknown opcode */ - - REPORT_ERROR (("AcpiExMonadic1: Unknown monadic opcode %X\n", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - break; - } - - - /* Always delete the operand */ - - AcpiUtRemoveReference (ObjDesc); - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExMonadic2R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute Type 2 monadic operator with numeric operand and - * result operand on operand stack - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExMonadic2R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_OPERAND_OBJECT *RetDesc = NULL; - ACPI_OPERAND_OBJECT *RetDesc2 = NULL; - UINT32 Temp32; - UINT32 i; - UINT32 j; - ACPI_INTEGER Digit; - - - FUNCTION_TRACE_PTR ("ExMonadic2R", WALK_OPERANDS); - - - - - /* Create a return object of type NUMBER for most opcodes */ - - switch (WalkState->Opcode) - { - case AML_BIT_NOT_OP: - case AML_FIND_SET_LEFT_BIT_OP: - case AML_FIND_SET_RIGHT_BIT_OP: - case AML_FROM_BCD_OP: - case AML_TO_BCD_OP: - case AML_COND_REF_OF_OP: - - RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - break; - } - - - switch (WalkState->Opcode) - { - - case AML_BIT_NOT_OP: /* Not (Operand, Result) */ - - RetDesc->Integer.Value = ~ObjDesc->Integer.Value; - break; - - - case AML_FIND_SET_LEFT_BIT_OP: /* FindSetLeftBit (Operand, Result) */ - - - RetDesc->Integer.Value = ObjDesc->Integer.Value; - - /* - * Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (Temp32 = 0; RetDesc->Integer.Value && Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) - { - RetDesc->Integer.Value >>= 1; - } - - RetDesc->Integer.Value = Temp32; - break; - - - case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */ - - - RetDesc->Integer.Value = ObjDesc->Integer.Value; - - /* - * The Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (Temp32 = 0; RetDesc->Integer.Value && Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) - { - RetDesc->Integer.Value <<= 1; - } - - /* Since returns must be 1-based, subtract from 33 (65) */ - - RetDesc->Integer.Value = Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32; - break; - - - case AML_FROM_BCD_OP: /* FromBcd (BCDValue, Result) */ - - /* - * The 64-bit ACPI integer can hold 16 4-bit BCD integers - */ - RetDesc->Integer.Value = 0; - for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++) - { - /* Get one BCD digit */ - - Digit = (ACPI_INTEGER) ((ObjDesc->Integer.Value >> (i * 4)) & 0xF); - - /* Check the range of the digit */ - - if (Digit > 9) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD digit too large: \n", - Digit)); - Status = AE_AML_NUMERIC_OVERFLOW; - goto Cleanup; - } - - if (Digit > 0) - { - /* Sum into the result with the appropriate power of 10 */ - - for (j = 0; j < i; j++) - { - Digit *= 10; - } - - RetDesc->Integer.Value += Digit; - } - } - break; - - - case AML_TO_BCD_OP: /* ToBcd (Operand, Result) */ - - if (ObjDesc->Integer.Value > ACPI_MAX_BCD_VALUE) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD overflow: %d\n", - ObjDesc->Integer.Value)); - Status = AE_AML_NUMERIC_OVERFLOW; - goto Cleanup; - } - - RetDesc->Integer.Value = 0; - for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++) - { - /* Divide by nth factor of 10 */ - - Temp32 = 0; - Digit = ObjDesc->Integer.Value; - for (j = 0; j < i; j++) - { - AcpiUtShortDivide (&Digit, 10, &Digit, &Temp32); - } - - /* Create the BCD digit from the remainder above */ - - if (Digit > 0) - { - RetDesc->Integer.Value += (Temp32 << (i * 4)); - } - } - break; - - - case AML_COND_REF_OF_OP: /* CondRefOf (SourceObject, Result) */ - - /* - * This op is a little strange because the internal return value is - * different than the return value stored in the result descriptor - * (There are really two return values) - */ - if ((ACPI_NAMESPACE_NODE *) ObjDesc == AcpiGbl_RootNode) - { - /* - * This means that the object does not exist in the namespace, - * return FALSE - */ - RetDesc->Integer.Value = 0; - - /* - * Must delete the result descriptor since there is no reference - * being returned - */ - AcpiUtRemoveReference (ResDesc); - goto Cleanup; - } - - /* Get the object reference and store it */ - - Status = AcpiExGetObjectReference (ObjDesc, &RetDesc2, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - Status = AcpiExStore (RetDesc2, ResDesc, WalkState); - - /* The object exists in the namespace, return TRUE */ - - RetDesc->Integer.Value = ACPI_INTEGER_MAX; - goto Cleanup; - break; - - - case AML_STORE_OP: /* Store (Source, Target) */ - - /* - * A store operand is typically a number, string, buffer or lvalue - * Be careful about deleting the source object, - * since the object itself may have been stored. - */ - Temp32 = ObjDesc->Common.ReferenceCount; - Status = AcpiExStore (ObjDesc, ResDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - /* On failure, just delete the ObjDesc */ - - AcpiUtRemoveReference (ObjDesc); - return_ACPI_STATUS (Status); - } - -#if 0 - if ((ObjDesc->Common.ReferenceCount > Temp32) && - (!AcpiDsIsResultUsed (WalkState->Op, WalkState))) - { - ObjDesc->Common.ReferenceCount++; - } -#endif - - /* - * Normally, we would remove a reference on the ObjDesc parameter; - * But since it is being used as the internal return object - * (meaning we would normally increment it), the two cancel out, - * and we simply don't do anything. - */ - WalkState->ResultObj = ObjDesc; - return_ACPI_STATUS (Status); - break; - - - /* - * ACPI 2.0 Opcodes - */ - case AML_TO_DECSTRING_OP: /* ToDecimalString (Data, Result) */ - - Status = AcpiExConvertToString (ObjDesc, &RetDesc, 10, ACPI_UINT32_MAX, WalkState); - break; - - - case AML_TO_HEXSTRING_OP: /* ToHexString (Data, Result) */ - - Status = AcpiExConvertToString (ObjDesc, &RetDesc, 16, ACPI_UINT32_MAX, WalkState); - break; - - - case AML_TO_BUFFER_OP: /* ToBuffer (Data, Result) */ - - Status = AcpiExConvertToBuffer (ObjDesc, &RetDesc, WalkState); - break; - - - case AML_TO_INTEGER_OP: /* ToInteger (Data, Result) */ - - Status = AcpiExConvertToInteger (ObjDesc, &RetDesc, WalkState); - break; - - - /* - * These are two obsolete opcodes - */ - case AML_SHIFT_LEFT_BIT_OP: /* ShiftLeftBit (Source, BitNum) */ - case AML_SHIFT_RIGHT_BIT_OP: /* ShiftRightBit (Source, BitNum) */ - - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s is unimplemented\n", - AcpiPsGetOpcodeName (WalkState->Opcode))); - Status = AE_SUPPORT; - goto Cleanup; - break; - - - default: /* Unknown opcode */ - - REPORT_ERROR (("AcpiExMonadic2R: Unknown monadic opcode %X\n", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - goto Cleanup; - } - - - /* - * Store the return value computed above into the result object - */ - Status = AcpiExStore (RetDesc, ResDesc, WalkState); - - -Cleanup: - /* Always delete the operand object */ - - AcpiUtRemoveReference (ObjDesc); - - /* Delete return object(s) on error */ - - if (ACPI_FAILURE (Status)) - { - AcpiUtRemoveReference (ResDesc); /* Result descriptor */ - if (RetDesc) - { - AcpiUtRemoveReference (RetDesc); - RetDesc = NULL; - } - } - - /* Set the return object and exit */ - - WalkState->ResultObj = RetDesc; - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExMonadic2 - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute Type 2 monadic operator with numeric operand: - * DerefOfOp, RefOfOp, SizeOfOp, TypeOp, IncrementOp, - * DecrementOp, LNotOp, - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExMonadic2 ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_OPERAND_OBJECT *TmpDesc; - ACPI_OPERAND_OBJECT *RetDesc = NULL; - ACPI_STATUS Status = AE_OK; - UINT32 Type; - ACPI_INTEGER Value; - - - FUNCTION_TRACE_PTR ("ExMonadic2", WALK_OPERANDS); - - - - - /* Get the operand and decode the opcode */ - - switch (WalkState->Opcode) - { - - case AML_LNOT_OP: /* LNot (Operand) */ - - RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - RetDesc->Integer.Value = !ObjDesc->Integer.Value; - break; - - - case AML_DECREMENT_OP: /* Decrement (Operand) */ - case AML_INCREMENT_OP: /* Increment (Operand) */ - - /* - * Since we are expecting an Reference on the top of the stack, it - * can be either an Node or an internal object. - * - * TBD: [Future] This may be the prototype code for all cases where - * a Reference is expected!! 10/99 - */ - if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) - { - RetDesc = ObjDesc; - } - - else - { - /* - * Duplicate the Reference in a new object so that we can resolve it - * without destroying the original Reference object - */ - RetDesc = AcpiUtCreateInternalObject (INTERNAL_TYPE_REFERENCE); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - RetDesc->Reference.Opcode = ObjDesc->Reference.Opcode; - RetDesc->Reference.Offset = ObjDesc->Reference.Offset; - RetDesc->Reference.Object = ObjDesc->Reference.Object; - } - - - /* - * Convert the RetDesc Reference to a Number - * (This deletes the original RetDesc object) - */ - Status = AcpiExResolveOperands (AML_LNOT_OP, &RetDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s: bad operand(s) %s\n", - AcpiPsGetOpcodeName (WalkState->Opcode), AcpiFormatException(Status))); - - goto Cleanup; - } - - /* Do the actual increment or decrement */ - - if (AML_INCREMENT_OP == WalkState->Opcode) - { - RetDesc->Integer.Value++; - } - else - { - RetDesc->Integer.Value--; - } - - /* Store the result back in the original descriptor */ - - Status = AcpiExStore (RetDesc, ObjDesc, WalkState); - - /* Objdesc was just deleted (because it is an Reference) */ - - ObjDesc = NULL; - - break; - - - case AML_TYPE_OP: /* ObjectType (SourceObject) */ - - if (INTERNAL_TYPE_REFERENCE == ObjDesc->Common.Type) - { - /* - * Not a Name -- an indirect name pointer would have - * been converted to a direct name pointer in ResolveOperands - */ - switch (ObjDesc->Reference.Opcode) - { - case AML_ZERO_OP: - case AML_ONE_OP: - case AML_ONES_OP: - case AML_REVISION_OP: - - /* Constants are of type Number */ - - Type = ACPI_TYPE_INTEGER; - break; - - - case AML_DEBUG_OP: - - /* Per 1.0b spec, Debug object is of type "DebugObject" */ - - Type = ACPI_TYPE_DEBUG_OBJECT; - break; - - - case AML_INDEX_OP: - - /* Get the type of this reference (index into another object) */ - - Type = ObjDesc->Reference.TargetType; - if (Type == ACPI_TYPE_PACKAGE) - { - /* - * The main object is a package, we want to get the type - * of the individual package element that is referenced by - * the index. - */ - Type = (*(ObjDesc->Reference.Where))->Common.Type; - } - - break; - - - case AML_LOCAL_OP: - case AML_ARG_OP: - - Type = AcpiDsMethodDataGetType (ObjDesc->Reference.Opcode, - ObjDesc->Reference.Offset, WalkState); - break; - - - default: - - REPORT_ERROR (("AcpiExMonadic2/TypeOp: Internal error - Unknown Reference subtype %X\n", - ObjDesc->Reference.Opcode)); - Status = AE_AML_INTERNAL; - goto Cleanup; - } - } - - else - { - /* - * It's not a Reference, so it must be a direct name pointer. - */ - Type = AcpiNsGetType ((ACPI_NAMESPACE_NODE *) ObjDesc); - - /* Convert internal types to external types */ - - switch (Type) - { - case INTERNAL_TYPE_REGION_FIELD: - case INTERNAL_TYPE_BANK_FIELD: - case INTERNAL_TYPE_INDEX_FIELD: - - Type = ACPI_TYPE_FIELD_UNIT; - } - - } - - /* Allocate a descriptor to hold the type. */ - - RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - RetDesc->Integer.Value = Type; - break; - - - case AML_SIZE_OF_OP: /* SizeOf (SourceObject) */ - - if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) - { - ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) ObjDesc); - } - - if (!ObjDesc) - { - Value = 0; - } - - else - { - switch (ObjDesc->Common.Type) - { - - case ACPI_TYPE_BUFFER: - - Value = ObjDesc->Buffer.Length; - break; - - - case ACPI_TYPE_STRING: - - Value = ObjDesc->String.Length; - break; - - - case ACPI_TYPE_PACKAGE: - - Value = ObjDesc->Package.Count; - break; - - case INTERNAL_TYPE_REFERENCE: - - Value = 4; - break; - - default: - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Not Buf/Str/Pkg - found type %X\n", - ObjDesc->Common.Type)); - Status = AE_AML_OPERAND_TYPE; - goto Cleanup; - } - } - - /* - * Now that we have the size of the object, create a result - * object to hold the value - */ - RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - RetDesc->Integer.Value = Value; - break; - - - case AML_REF_OF_OP: /* RefOf (SourceObject) */ - - Status = AcpiExGetObjectReference (ObjDesc, &RetDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - break; - - - case AML_DEREF_OF_OP: /* DerefOf (ObjReference) */ - - /* Check for a method local or argument */ - - if (!VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) - { - /* - * Must resolve/dereference the local/arg reference first - */ - switch (ObjDesc->Reference.Opcode) - { - /* Set ObjDesc to the value of the local/arg */ - - case AML_LOCAL_OP: - case AML_ARG_OP: - - AcpiDsMethodDataGetValue (ObjDesc->Reference.Opcode, - ObjDesc->Reference.Offset, WalkState, &TmpDesc); - - /* - * Delete our reference to the input object and - * point to the object just retrieved - */ - AcpiUtRemoveReference (ObjDesc); - ObjDesc = TmpDesc; - break; - - default: - - /* Index op - handled below */ - break; - } - } - - - /* ObjDesc may have changed from the code above */ - - if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED)) - { - /* Get the actual object from the Node (This is the dereference) */ - - RetDesc = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Object; - - /* Returning a pointer to the object, add another reference! */ - - AcpiUtAddReference (RetDesc); - } - - else - { - /* - * This must be a reference object produced by the Index - * ASL operation -- check internal opcode - */ - if ((ObjDesc->Reference.Opcode != AML_INDEX_OP) && - (ObjDesc->Reference.Opcode != AML_REF_OF_OP)) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode in ref(%p) - %X\n", - ObjDesc, ObjDesc->Reference.Opcode)); - - Status = AE_TYPE; - goto Cleanup; - } - - - switch (ObjDesc->Reference.Opcode) - { - case AML_INDEX_OP: - - /* - * Supported target types for the Index operator are - * 1) A Buffer - * 2) A Package - */ - if (ObjDesc->Reference.TargetType == ACPI_TYPE_BUFFER_FIELD) - { - /* - * The target is a buffer, we must create a new object that - * contains one element of the buffer, the element pointed - * to by the index. - * - * NOTE: index into a buffer is NOT a pointer to a - * sub-buffer of the main buffer, it is only a pointer to a - * single element (byte) of the buffer! - */ - RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!RetDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - TmpDesc = ObjDesc->Reference.Object; - RetDesc->Integer.Value = - TmpDesc->Buffer.Pointer[ObjDesc->Reference.Offset]; - - /* TBD: [Investigate] (see below) Don't add an additional - * ref! - */ - } - - else if (ObjDesc->Reference.TargetType == ACPI_TYPE_PACKAGE) - { - /* - * The target is a package, we want to return the referenced - * element of the package. We must add another reference to - * this object, however. - */ - RetDesc = *(ObjDesc->Reference.Where); - if (!RetDesc) - { - /* - * We can't return a NULL dereferenced value. This is - * an uninitialized package element and is thus a - * severe error. - */ - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "NULL package element obj %p\n", - ObjDesc)); - Status = AE_AML_UNINITIALIZED_ELEMENT; - goto Cleanup; - } - - AcpiUtAddReference (RetDesc); - } - - else - { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown TargetType %X in obj %p\n", - ObjDesc->Reference.TargetType, ObjDesc)); - Status = AE_AML_OPERAND_TYPE; - goto Cleanup; - } - - break; - - - case AML_REF_OF_OP: - - RetDesc = ObjDesc->Reference.Object; - - /* Add another reference to the object! */ - - AcpiUtAddReference (RetDesc); - break; - } - } - - break; - - - default: - - REPORT_ERROR (("AcpiExMonadic2: Unknown monadic opcode %X\n", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - goto Cleanup; - } - - -Cleanup: - - if (ObjDesc) - { - AcpiUtRemoveReference (ObjDesc); - } - - /* Delete return object on error */ - - if (ACPI_FAILURE (Status) && - (RetDesc)) - { - AcpiUtRemoveReference (RetDesc); - RetDesc = NULL; - } - - WalkState->ResultObj = RetDesc; - return_ACPI_STATUS (Status); -} - |