diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exoparg1.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exoparg1.c | 1178 |
1 files changed, 0 insertions, 1178 deletions
diff --git a/sys/contrib/dev/acpica/exoparg1.c b/sys/contrib/dev/acpica/exoparg1.c deleted file mode 100644 index 51f34af..0000000 --- a/sys/contrib/dev/acpica/exoparg1.c +++ /dev/null @@ -1,1178 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exoparg1 - AML execution - opcodes with 1 argument - * $Revision: 1.184 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2007, 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 __EXOPARG1_C__ - -#include <contrib/dev/acpica/acpi.h> -#include <contrib/dev/acpica/acparser.h> -#include <contrib/dev/acpica/acdispat.h> -#include <contrib/dev/acpica/acinterp.h> -#include <contrib/dev/acpica/amlcode.h> -#include <contrib/dev/acpica/acnamesp.h> - - -#define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exoparg1") - - -/*! - * Naming convention for AML interpreter execution routines. - * - * The routines that begin execution of AML opcodes are named with a common - * convention based upon the number of arguments, the number of target operands, - * and whether or not a value is returned: - * - * AcpiExOpcode_xA_yT_zR - * - * Where: - * - * xA - ARGUMENTS: The number of arguments (input operands) that are - * required for this opcode type (0 through 6 args). - * yT - TARGETS: The number of targets (output operands) that are required - * for this opcode type (0, 1, or 2 targets). - * zR - RETURN VALUE: Indicates whether this opcode type returns a value - * as the function return (0 or 1). - * - * The AcpiExOpcode* functions are called via the Dispatcher component with - * fully resolved operands. -!*/ - -/******************************************************************************* - * - * FUNCTION: AcpiExOpcode_0A_0T_1R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute operator with no operands, one return value - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExOpcode_0A_0T_1R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - ACPI_OPERAND_OBJECT *ReturnDesc = NULL; - - - ACPI_FUNCTION_TRACE_STR (ExOpcode_0A_0T_1R, - AcpiPsGetOpcodeName (WalkState->Opcode)); - - - /* Examine the AML opcode */ - - switch (WalkState->Opcode) - { - case AML_TIMER_OP: /* Timer () */ - - /* Create a return object of type Integer */ - - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - ReturnDesc->Integer.Value = AcpiOsGetTimer (); - break; - - default: /* Unknown opcode */ - - ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - break; - } - -Cleanup: - - /* Delete return object on error */ - - if ((ACPI_FAILURE (Status)) || WalkState->ResultObj) - { - AcpiUtRemoveReference (ReturnDesc); - WalkState->ResultObj = NULL; - } - else - { - /* Save the return value */ - - WalkState->ResultObj = ReturnDesc; - } - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExOpcode_1A_0T_0R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on - * object stack - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExOpcode_1A_0T_0R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_STATUS Status = AE_OK; - - - ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_0T_0R, - AcpiPsGetOpcodeName (WalkState->Opcode)); - - - /* Examine the AML opcode */ - - switch (WalkState->Opcode) - { - case AML_RELEASE_OP: /* Release (MutexObject) */ - - Status = AcpiExReleaseMutex (Operand[0], WalkState); - break; - - - case AML_RESET_OP: /* Reset (EventObject) */ - - Status = AcpiExSystemResetEvent (Operand[0]); - break; - - - case AML_SIGNAL_OP: /* Signal (EventObject) */ - - Status = AcpiExSystemSignalEvent (Operand[0]); - break; - - - case AML_SLEEP_OP: /* Sleep (MsecTime) */ - - Status = AcpiExSystemDoSuspend (Operand[0]->Integer.Value); - break; - - - case AML_STALL_OP: /* Stall (UsecTime) */ - - Status = AcpiExSystemDoStall ((UINT32) Operand[0]->Integer.Value); - break; - - - case AML_UNLOAD_OP: /* Unload (Handle) */ - - Status = AcpiExUnloadTable (Operand[0]); - break; - - - default: /* Unknown opcode */ - - ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - break; - } - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExOpcode_1A_1T_0R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, one target, and no - * return value. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExOpcode_1A_1T_0R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - - - ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_1T_0R, - AcpiPsGetOpcodeName (WalkState->Opcode)); - - - /* Examine the AML opcode */ - - switch (WalkState->Opcode) - { - case AML_LOAD_OP: - - Status = AcpiExLoadOp (Operand[0], Operand[1], WalkState); - break; - - default: /* Unknown opcode */ - - ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - goto Cleanup; - } - - -Cleanup: - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExOpcode_1A_1T_1R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, one target, and a - * return value. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExOpcode_1A_1T_1R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_OPERAND_OBJECT *ReturnDesc = NULL; - ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL; - UINT32 Temp32; - UINT32 i; - ACPI_INTEGER PowerOfTen; - ACPI_INTEGER Digit; - - - ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_1T_1R, - AcpiPsGetOpcodeName (WalkState->Opcode)); - - - /* Examine the AML opcode */ - - 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: - - /* Create a return object of type Integer for these opcodes */ - - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - switch (WalkState->Opcode) - { - case AML_BIT_NOT_OP: /* Not (Operand, Result) */ - - ReturnDesc->Integer.Value = ~Operand[0]->Integer.Value; - break; - - - case AML_FIND_SET_LEFT_BIT_OP: /* FindSetLeftBit (Operand, Result) */ - - ReturnDesc->Integer.Value = Operand[0]->Integer.Value; - - /* - * Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (Temp32 = 0; ReturnDesc->Integer.Value && - Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) - { - ReturnDesc->Integer.Value >>= 1; - } - - ReturnDesc->Integer.Value = Temp32; - break; - - - case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */ - - ReturnDesc->Integer.Value = Operand[0]->Integer.Value; - - /* - * The Acpi specification describes Integer type as a little - * endian unsigned value, so this boundary condition is valid. - */ - for (Temp32 = 0; ReturnDesc->Integer.Value && - Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32) - { - ReturnDesc->Integer.Value <<= 1; - } - - /* Since the bit position is one-based, subtract from 33 (65) */ - - ReturnDesc->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 characters - * (if table is 32-bit, integer can hold 8 BCD characters) - * Convert each 4-bit BCD value - */ - PowerOfTen = 1; - ReturnDesc->Integer.Value = 0; - Digit = Operand[0]->Integer.Value; - - /* Convert each BCD digit (each is one nybble wide) */ - - for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++) - { - /* Get the least significant 4-bit BCD digit */ - - Temp32 = ((UINT32) Digit) & 0xF; - - /* Check the range of the digit */ - - if (Temp32 > 9) - { - ACPI_ERROR ((AE_INFO, - "BCD digit too large (not decimal): 0x%X", - Temp32)); - - Status = AE_AML_NUMERIC_OVERFLOW; - goto Cleanup; - } - - /* Sum the digit into the result with the current power of 10 */ - - ReturnDesc->Integer.Value += - (((ACPI_INTEGER) Temp32) * PowerOfTen); - - /* Shift to next BCD digit */ - - Digit >>= 4; - - /* Next power of 10 */ - - PowerOfTen *= 10; - } - break; - - - case AML_TO_BCD_OP: /* ToBcd (Operand, Result) */ - - ReturnDesc->Integer.Value = 0; - Digit = Operand[0]->Integer.Value; - - /* Each BCD digit is one nybble wide */ - - for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++) - { - (void) AcpiUtShortDivide (Digit, 10, &Digit, &Temp32); - - /* - * Insert the BCD digit that resides in the - * remainder from above - */ - ReturnDesc->Integer.Value |= - (((ACPI_INTEGER) Temp32) << ACPI_MUL_4 (i)); - } - - /* Overflow if there is any data left in Digit */ - - if (Digit > 0) - { - ACPI_ERROR ((AE_INFO, - "Integer too large to convert to BCD: %8.8X%8.8X", - ACPI_FORMAT_UINT64 (Operand[0]->Integer.Value))); - Status = AE_AML_NUMERIC_OVERFLOW; - goto Cleanup; - } - 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 *) Operand[0] == AcpiGbl_RootNode) - { - /* - * This means that the object does not exist in the namespace, - * return FALSE - */ - ReturnDesc->Integer.Value = 0; - goto Cleanup; - } - - /* Get the object reference, store it, and remove our reference */ - - Status = AcpiExGetObjectReference (Operand[0], - &ReturnDesc2, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - Status = AcpiExStore (ReturnDesc2, Operand[1], WalkState); - AcpiUtRemoveReference (ReturnDesc2); - - /* The object exists in the namespace, return TRUE */ - - ReturnDesc->Integer.Value = ACPI_INTEGER_MAX; - goto Cleanup; - - - default: - /* No other opcodes get here */ - break; - } - 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. - */ - Status = AcpiExStore (Operand[0], Operand[1], WalkState); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* It is possible that the Store already produced a return object */ - - if (!WalkState->ResultObj) - { - /* - * Normally, we would remove a reference on the Operand[0] - * 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 = Operand[0]; - WalkState->Operands[0] = NULL; /* Prevent deletion */ - } - return_ACPI_STATUS (Status); - - - /* - * ACPI 2.0 Opcodes - */ - case AML_COPY_OP: /* Copy (Source, Target) */ - - Status = AcpiUtCopyIobjectToIobject (Operand[0], &ReturnDesc, - WalkState); - break; - - - case AML_TO_DECSTRING_OP: /* ToDecimalString (Data, Result) */ - - Status = AcpiExConvertToString (Operand[0], &ReturnDesc, - ACPI_EXPLICIT_CONVERT_DECIMAL); - if (ReturnDesc == Operand[0]) - { - /* No conversion performed, add ref to handle return value */ - AcpiUtAddReference (ReturnDesc); - } - break; - - - case AML_TO_HEXSTRING_OP: /* ToHexString (Data, Result) */ - - Status = AcpiExConvertToString (Operand[0], &ReturnDesc, - ACPI_EXPLICIT_CONVERT_HEX); - if (ReturnDesc == Operand[0]) - { - /* No conversion performed, add ref to handle return value */ - AcpiUtAddReference (ReturnDesc); - } - break; - - - case AML_TO_BUFFER_OP: /* ToBuffer (Data, Result) */ - - Status = AcpiExConvertToBuffer (Operand[0], &ReturnDesc); - if (ReturnDesc == Operand[0]) - { - /* No conversion performed, add ref to handle return value */ - AcpiUtAddReference (ReturnDesc); - } - break; - - - case AML_TO_INTEGER_OP: /* ToInteger (Data, Result) */ - - Status = AcpiExConvertToInteger (Operand[0], &ReturnDesc, - ACPI_ANY_BASE); - if (ReturnDesc == Operand[0]) - { - /* No conversion performed, add ref to handle return value */ - AcpiUtAddReference (ReturnDesc); - } - break; - - - case AML_SHIFT_LEFT_BIT_OP: /* ShiftLeftBit (Source, BitNum) */ - case AML_SHIFT_RIGHT_BIT_OP: /* ShiftRightBit (Source, BitNum) */ - - /* These are two obsolete opcodes */ - - ACPI_ERROR ((AE_INFO, - "%s is obsolete and not implemented", - AcpiPsGetOpcodeName (WalkState->Opcode))); - Status = AE_SUPPORT; - goto Cleanup; - - - default: /* Unknown opcode */ - - ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - goto Cleanup; - } - - if (ACPI_SUCCESS (Status)) - { - /* Store the return value computed above into the target object */ - - Status = AcpiExStore (ReturnDesc, Operand[1], WalkState); - } - - -Cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE (Status)) - { - AcpiUtRemoveReference (ReturnDesc); - } - - /* Save return object on success */ - - else if (!WalkState->ResultObj) - { - WalkState->ResultObj = ReturnDesc; - } - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiExOpcode_1A_0T_1R - * - * PARAMETERS: WalkState - Current state (contains AML opcode) - * - * RETURN: Status - * - * DESCRIPTION: Execute opcode with one argument, no target, and a return value - * - ******************************************************************************/ - -ACPI_STATUS -AcpiExOpcode_1A_0T_1R ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; - ACPI_OPERAND_OBJECT *TempDesc; - ACPI_OPERAND_OBJECT *ReturnDesc = NULL; - ACPI_STATUS Status = AE_OK; - UINT32 Type; - ACPI_INTEGER Value; - - - ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_0T_1R, - AcpiPsGetOpcodeName (WalkState->Opcode)); - - - /* Examine the AML opcode */ - - switch (WalkState->Opcode) - { - case AML_LNOT_OP: /* LNot (Operand) */ - - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Set result to ONES (TRUE) if Value == 0. Note: - * ReturnDesc->Integer.Value is initially == 0 (FALSE) from above. - */ - if (!Operand[0]->Integer.Value) - { - ReturnDesc->Integer.Value = ACPI_INTEGER_MAX; - } - break; - - - case AML_DECREMENT_OP: /* Decrement (Operand) */ - case AML_INCREMENT_OP: /* Increment (Operand) */ - - /* - * Create a new integer. Can't just get the base integer and - * increment it because it may be an Arg or Field. - */ - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Since we are expecting a Reference operand, it can be either a - * NS Node or an internal object. - */ - TempDesc = Operand[0]; - if (ACPI_GET_DESCRIPTOR_TYPE (TempDesc) == ACPI_DESC_TYPE_OPERAND) - { - /* Internal reference object - prevent deletion */ - - AcpiUtAddReference (TempDesc); - } - - /* - * Convert the Reference operand to an Integer (This removes a - * reference on the Operand[0] object) - * - * NOTE: We use LNOT_OP here in order to force resolution of the - * reference operand to an actual integer. - */ - Status = AcpiExResolveOperands (AML_LNOT_OP, &TempDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - ACPI_EXCEPTION ((AE_INFO, Status, - "While resolving operands for [%s]", - AcpiPsGetOpcodeName (WalkState->Opcode))); - - goto Cleanup; - } - - /* - * TempDesc is now guaranteed to be an Integer object -- - * Perform the actual increment or decrement - */ - if (WalkState->Opcode == AML_INCREMENT_OP) - { - ReturnDesc->Integer.Value = TempDesc->Integer.Value +1; - } - else - { - ReturnDesc->Integer.Value = TempDesc->Integer.Value -1; - } - - /* Finished with this Integer object */ - - AcpiUtRemoveReference (TempDesc); - - /* - * Store the result back (indirectly) through the original - * Reference object - */ - Status = AcpiExStore (ReturnDesc, Operand[0], WalkState); - break; - - - case AML_TYPE_OP: /* ObjectType (SourceObject) */ - - /* - * Note: The operand is not resolved at this point because we want to - * get the associated object, not its value. For example, we don't - * want to resolve a FieldUnit to its value, we want the actual - * FieldUnit object. - */ - - /* Get the type of the base object */ - - Status = AcpiExResolveMultiple (WalkState, Operand[0], &Type, NULL); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* Allocate a descriptor to hold the type. */ - - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - ReturnDesc->Integer.Value = Type; - break; - - - case AML_SIZE_OF_OP: /* SizeOf (SourceObject) */ - - /* - * Note: The operand is not resolved at this point because we want to - * get the associated object, not its value. - */ - - /* Get the base object */ - - Status = AcpiExResolveMultiple (WalkState, - Operand[0], &Type, &TempDesc); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* - * The type of the base object must be integer, buffer, string, or - * package. All others are not supported. - * - * NOTE: Integer is not specifically supported by the ACPI spec, - * but is supported implicitly via implicit operand conversion. - * rather than bother with conversion, we just use the byte width - * global (4 or 8 bytes). - */ - switch (Type) - { - case ACPI_TYPE_INTEGER: - Value = AcpiGbl_IntegerByteWidth; - break; - - case ACPI_TYPE_BUFFER: - Value = TempDesc->Buffer.Length; - break; - - case ACPI_TYPE_STRING: - Value = TempDesc->String.Length; - break; - - case ACPI_TYPE_PACKAGE: - Value = TempDesc->Package.Count; - break; - - default: - ACPI_ERROR ((AE_INFO, - "Operand is not Buf/Int/Str/Pkg - found type %s", - AcpiUtGetTypeName (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 - */ - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - ReturnDesc->Integer.Value = Value; - break; - - - case AML_REF_OF_OP: /* RefOf (SourceObject) */ - - Status = AcpiExGetObjectReference (Operand[0], &ReturnDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - break; - - - case AML_DEREF_OF_OP: /* DerefOf (ObjReference | String) */ - - /* Check for a method local or argument, or standalone String */ - - if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) == ACPI_DESC_TYPE_NAMED) - { - TempDesc = AcpiNsGetAttachedObject ( - (ACPI_NAMESPACE_NODE *) Operand[0]); - if (TempDesc && - ((ACPI_GET_OBJECT_TYPE (TempDesc) == ACPI_TYPE_STRING) || - (ACPI_GET_OBJECT_TYPE (TempDesc) == ACPI_TYPE_LOCAL_REFERENCE))) - { - Operand[0] = TempDesc; - AcpiUtAddReference (TempDesc); - } - else - { - Status = AE_AML_OPERAND_TYPE; - goto Cleanup; - } - } - else - { - switch (ACPI_GET_OBJECT_TYPE (Operand[0])) - { - case ACPI_TYPE_LOCAL_REFERENCE: - /* - * This is a DerefOf (LocalX | ArgX) - * - * Must resolve/dereference the local/arg reference first - */ - switch (Operand[0]->Reference.Opcode) - { - case AML_LOCAL_OP: - case AML_ARG_OP: - - /* Set Operand[0] to the value of the local/arg */ - - Status = AcpiDsMethodDataGetValue ( - Operand[0]->Reference.Opcode, - Operand[0]->Reference.Offset, - WalkState, &TempDesc); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* - * Delete our reference to the input object and - * point to the object just retrieved - */ - AcpiUtRemoveReference (Operand[0]); - Operand[0] = TempDesc; - break; - - case AML_REF_OF_OP: - - /* Get the object to which the reference refers */ - - TempDesc = Operand[0]->Reference.Object; - AcpiUtRemoveReference (Operand[0]); - Operand[0] = TempDesc; - break; - - default: - - /* Must be an Index op - handled below */ - break; - } - break; - - case ACPI_TYPE_STRING: - break; - - default: - Status = AE_AML_OPERAND_TYPE; - goto Cleanup; - } - } - - if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) != ACPI_DESC_TYPE_NAMED) - { - if (ACPI_GET_OBJECT_TYPE (Operand[0]) == ACPI_TYPE_STRING) - { - /* - * This is a DerefOf (String). The string is a reference - * to a named ACPI object. - * - * 1) Find the owning Node - * 2) Dereference the node to an actual object. Could be a - * Field, so we need to resolve the node to a value. - */ - Status = AcpiNsGetNode (WalkState->ScopeInfo->Scope.Node, - Operand[0]->String.Pointer, - ACPI_NS_SEARCH_PARENT, - ACPI_CAST_INDIRECT_PTR ( - ACPI_NAMESPACE_NODE, &ReturnDesc)); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - Status = AcpiExResolveNodeToValue ( - ACPI_CAST_INDIRECT_PTR ( - ACPI_NAMESPACE_NODE, &ReturnDesc), - WalkState); - goto Cleanup; - } - } - - /* Operand[0] may have changed from the code above */ - - if (ACPI_GET_DESCRIPTOR_TYPE (Operand[0]) == ACPI_DESC_TYPE_NAMED) - { - /* - * This is a DerefOf (ObjectReference) - * Get the actual object from the Node (This is the dereference). - * This case may only happen when a LocalX or ArgX is - * dereferenced above. - */ - ReturnDesc = AcpiNsGetAttachedObject ( - (ACPI_NAMESPACE_NODE *) Operand[0]); - AcpiUtAddReference (ReturnDesc); - } - else - { - /* - * This must be a reference object produced by either the - * Index() or RefOf() operator - */ - switch (Operand[0]->Reference.Opcode) - { - case AML_INDEX_OP: - - /* - * The target type for the Index operator must be - * either a Buffer or a Package - */ - switch (Operand[0]->Reference.TargetType) - { - case ACPI_TYPE_BUFFER_FIELD: - - TempDesc = Operand[0]->Reference.Object; - - /* - * 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! - */ - ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); - if (!ReturnDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Since we are returning the value of the buffer at the - * indexed location, we don't need to add an additional - * reference to the buffer itself. - */ - ReturnDesc->Integer.Value = - TempDesc->Buffer.Pointer[Operand[0]->Reference.Offset]; - break; - - - case ACPI_TYPE_PACKAGE: - - /* - * Return the referenced element of the package. We must - * add another reference to the referenced object, however. - */ - ReturnDesc = *(Operand[0]->Reference.Where); - if (ReturnDesc) - { - AcpiUtAddReference (ReturnDesc); - } - break; - - - default: - - ACPI_ERROR ((AE_INFO, - "Unknown Index TargetType %X in obj %p", - Operand[0]->Reference.TargetType, Operand[0])); - Status = AE_AML_OPERAND_TYPE; - goto Cleanup; - } - break; - - - case AML_REF_OF_OP: - - ReturnDesc = Operand[0]->Reference.Object; - - if (ACPI_GET_DESCRIPTOR_TYPE (ReturnDesc) == - ACPI_DESC_TYPE_NAMED) - { - ReturnDesc = AcpiNsGetAttachedObject ( - (ACPI_NAMESPACE_NODE *) ReturnDesc); - } - - /* Add another reference to the object! */ - - AcpiUtAddReference (ReturnDesc); - break; - - - default: - ACPI_ERROR ((AE_INFO, - "Unknown opcode in reference(%p) - %X", - Operand[0], Operand[0]->Reference.Opcode)); - - Status = AE_TYPE; - goto Cleanup; - } - } - break; - - - default: - - ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X", - WalkState->Opcode)); - Status = AE_AML_BAD_OPCODE; - goto Cleanup; - } - - -Cleanup: - - /* Delete return object on error */ - - if (ACPI_FAILURE (Status)) - { - AcpiUtRemoveReference (ReturnDesc); - } - - /* Save return object on success */ - - else - { - WalkState->ResultObj = ReturnDesc; - } - - return_ACPI_STATUS (Status); -} - |
