diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/executer/exoparg3.c')
-rw-r--r-- | sys/contrib/dev/acpica/components/executer/exoparg3.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg3.c b/sys/contrib/dev/acpica/components/executer/exoparg3.c new file mode 100644 index 0000000..97136f9 --- /dev/null +++ b/sys/contrib/dev/acpica/components/executer/exoparg3.c @@ -0,0 +1,304 @@ + +/****************************************************************************** + * + * Module Name: exoparg3 - AML execution - opcodes with 3 arguments + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define __EXOPARG3_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acinterp.h> +#include <contrib/dev/acpica/include/acparser.h> +#include <contrib/dev/acpica/include/amlcode.h> + + +#define _COMPONENT ACPI_EXECUTER + ACPI_MODULE_NAME ("exoparg3") + + +/*! + * 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 (1 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_3A_0T_0R + * + * PARAMETERS: WalkState - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute Triadic operator (3 operands) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExOpcode_3A_0T_0R ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; + ACPI_SIGNAL_FATAL_INFO *Fatal; + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE_STR (ExOpcode_3A_0T_0R, + AcpiPsGetOpcodeName (WalkState->Opcode)); + + + switch (WalkState->Opcode) + { + case AML_FATAL_OP: /* Fatal (FatalType FatalCode FatalArg) */ + + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", + (UINT32) Operand[0]->Integer.Value, + (UINT32) Operand[1]->Integer.Value, + (UINT32) Operand[2]->Integer.Value)); + + Fatal = ACPI_ALLOCATE (sizeof (ACPI_SIGNAL_FATAL_INFO)); + if (Fatal) + { + Fatal->Type = (UINT32) Operand[0]->Integer.Value; + Fatal->Code = (UINT32) Operand[1]->Integer.Value; + Fatal->Argument = (UINT32) Operand[2]->Integer.Value; + } + + /* Always signal the OS! */ + + Status = AcpiOsSignal (ACPI_SIGNAL_FATAL, Fatal); + + /* Might return while OS is shutting down, just continue */ + + ACPI_FREE (Fatal); + break; + + + default: + + ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", + WalkState->Opcode)); + Status = AE_AML_BAD_OPCODE; + goto Cleanup; + } + + +Cleanup: + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExOpcode_3A_1T_1R + * + * PARAMETERS: WalkState - Current walk state + * + * RETURN: Status + * + * DESCRIPTION: Execute Triadic operator (3 operands) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExOpcode_3A_1T_1R ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; + ACPI_OPERAND_OBJECT *ReturnDesc = NULL; + char *Buffer = NULL; + ACPI_STATUS Status = AE_OK; + UINT64 Index; + ACPI_SIZE Length; + + + ACPI_FUNCTION_TRACE_STR (ExOpcode_3A_1T_1R, + AcpiPsGetOpcodeName (WalkState->Opcode)); + + + switch (WalkState->Opcode) + { + case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */ + + /* + * Create the return object. The Source operand is guaranteed to be + * either a String or a Buffer, so just use its type. + */ + ReturnDesc = AcpiUtCreateInternalObject ( + (Operand[0])->Common.Type); + if (!ReturnDesc) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + + /* Get the Integer values from the objects */ + + Index = Operand[1]->Integer.Value; + Length = (ACPI_SIZE) Operand[2]->Integer.Value; + + /* + * If the index is beyond the length of the String/Buffer, or if the + * requested length is zero, return a zero-length String/Buffer + */ + if (Index >= Operand[0]->String.Length) + { + Length = 0; + } + + /* Truncate request if larger than the actual String/Buffer */ + + else if ((Index + Length) > Operand[0]->String.Length) + { + Length = (ACPI_SIZE) Operand[0]->String.Length - + (ACPI_SIZE) Index; + } + + /* Strings always have a sub-pointer, not so for buffers */ + + switch ((Operand[0])->Common.Type) + { + case ACPI_TYPE_STRING: + + /* Always allocate a new buffer for the String */ + + Buffer = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) Length + 1); + if (!Buffer) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + break; + + case ACPI_TYPE_BUFFER: + + /* If the requested length is zero, don't allocate a buffer */ + + if (Length > 0) + { + /* Allocate a new buffer for the Buffer */ + + Buffer = ACPI_ALLOCATE_ZEROED (Length); + if (!Buffer) + { + Status = AE_NO_MEMORY; + goto Cleanup; + } + } + break; + + default: /* Should not happen */ + + Status = AE_AML_OPERAND_TYPE; + goto Cleanup; + } + + if (Buffer) + { + /* We have a buffer, copy the portion requested */ + + ACPI_MEMCPY (Buffer, Operand[0]->String.Pointer + Index, + Length); + } + + /* Set the length of the new String/Buffer */ + + ReturnDesc->String.Pointer = Buffer; + ReturnDesc->String.Length = (UINT32) Length; + + /* Mark buffer initialized */ + + ReturnDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; + break; + + + default: + + ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", + WalkState->Opcode)); + Status = AE_AML_BAD_OPCODE; + goto Cleanup; + } + + /* Store the result in the target */ + + Status = AcpiExStore (ReturnDesc, Operand[3], WalkState); + +Cleanup: + + /* Delete return object on error */ + + if (ACPI_FAILURE (Status) || WalkState->ResultObj) + { + AcpiUtRemoveReference (ReturnDesc); + WalkState->ResultObj = NULL; + } + + /* Set the return object and exit */ + + else + { + WalkState->ResultObj = ReturnDesc; + } + return_ACPI_STATUS (Status); +} + + |