diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exresop.c')
-rw-r--r-- | sys/contrib/dev/acpica/exresop.c | 670 |
1 files changed, 670 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/exresop.c b/sys/contrib/dev/acpica/exresop.c new file mode 100644 index 0000000..7e46b7b --- /dev/null +++ b/sys/contrib/dev/acpica/exresop.c @@ -0,0 +1,670 @@ + +/****************************************************************************** + * + * Module Name: exresop - AML Interpreter operand/object resolution + * $Revision: 60 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, 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 __EXRESOP_C__ + +#include "acpi.h" +#include "amlcode.h" +#include "acparser.h" +#include "acinterp.h" + + +#define _COMPONENT ACPI_EXECUTER + ACPI_MODULE_NAME ("exresop") + + +/******************************************************************************* + * + * FUNCTION: AcpiExCheckObjectType + * + * PARAMETERS: TypeNeeded Object type needed + * ThisType Actual object type + * Object Object pointer + * + * RETURN: Status + * + * DESCRIPTION: Check required type against actual type + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExCheckObjectType ( + ACPI_OBJECT_TYPE TypeNeeded, + ACPI_OBJECT_TYPE ThisType, + void *Object) +{ + ACPI_FUNCTION_NAME ("ExCheckObjectType"); + + + if (TypeNeeded == ACPI_TYPE_ANY) + { + /* All types OK, so we don't perform any typechecks */ + + return (AE_OK); + } + + if (TypeNeeded == ACPI_TYPE_LOCAL_REFERENCE) + { + /* + * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference + * objects and thus allow them to be targets. (As per the ACPI + * specification, a store to a constant is a noop.) + */ + if ((ThisType == ACPI_TYPE_INTEGER) && + (((ACPI_OPERAND_OBJECT *) Object)->Common.Flags & AOPOBJ_AML_CONSTANT)) + { + return (AE_OK); + } + } + + if (TypeNeeded != ThisType) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [%s], found [%s] %p\n", + AcpiUtGetTypeName (TypeNeeded), + AcpiUtGetTypeName (ThisType), Object)); + + return (AE_AML_OPERAND_TYPE); + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiExResolveOperands + * + * PARAMETERS: Opcode - Opcode being interpreted + * StackPtr - Pointer to the operand stack to be + * resolved + * WalkState - Current state + * + * RETURN: Status + * + * DESCRIPTION: Convert multiple input operands to the types required by the + * target operator. + * + * Each 5-bit group in ArgTypes represents one required + * operand and indicates the required Type. The corresponding operand + * will be converted to the required type if possible, otherwise we + * abort with an exception. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExResolveOperands ( + UINT16 Opcode, + ACPI_OPERAND_OBJECT **StackPtr, + ACPI_WALK_STATE *WalkState) +{ + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_STATUS Status = AE_OK; + UINT8 ObjectType; + void *TempNode; + UINT32 ArgTypes; + const ACPI_OPCODE_INFO *OpInfo; + UINT32 ThisArgType; + ACPI_OBJECT_TYPE TypeNeeded; + + + ACPI_FUNCTION_TRACE_U32 ("ExResolveOperands", Opcode); + + + OpInfo = AcpiPsGetOpcodeInfo (Opcode); + if (OpInfo->Class == AML_CLASS_UNKNOWN) + { + return_ACPI_STATUS (AE_AML_BAD_OPCODE); + } + + ArgTypes = OpInfo->RuntimeArgs; + if (ArgTypes == ARGI_INVALID_OPCODE) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - %X is not a valid AML opcode\n", + Opcode)); + + return_ACPI_STATUS (AE_AML_INTERNAL); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Opcode %X [%s] OperandTypes=%X \n", + Opcode, OpInfo->Name, ArgTypes)); + + /* + * Normal exit is with (ArgTypes == 0) at end of argument list. + * Function will return an exception from within the loop upon + * finding an entry which is not (or cannot be converted + * to) the required type; if stack underflows; or upon + * finding a NULL stack entry (which should not happen). + */ + while (GET_CURRENT_ARG_TYPE (ArgTypes)) + { + if (!StackPtr || !*StackPtr) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null stack entry at %p\n", + StackPtr)); + + return_ACPI_STATUS (AE_AML_INTERNAL); + } + + /* Extract useful items */ + + ObjDesc = *StackPtr; + + /* Decode the descriptor type */ + + switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc)) + { + case ACPI_DESC_TYPE_NAMED: + + /* Node */ + + ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type; + break; + + + case ACPI_DESC_TYPE_OPERAND: + + /* ACPI internal object */ + + ObjectType = ACPI_GET_OBJECT_TYPE (ObjDesc); + + /* Check for bad ACPI_OBJECT_TYPE */ + + if (!AcpiUtValidObjectType (ObjectType)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad operand object type [%X]\n", + ObjectType)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + if (ObjectType == (UINT8) ACPI_TYPE_LOCAL_REFERENCE) + { + /* + * Decode the Reference + */ + OpInfo = AcpiPsGetOpcodeInfo (Opcode); + if (OpInfo->Class == AML_CLASS_UNKNOWN) + { + return_ACPI_STATUS (AE_AML_BAD_OPCODE); + } + + switch (ObjDesc->Reference.Opcode) + { + case AML_DEBUG_OP: + case AML_NAME_OP: + case AML_INDEX_OP: + case AML_REF_OF_OP: + case AML_ARG_OP: + case AML_LOCAL_OP: + + ACPI_DEBUG_ONLY_MEMBERS (ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Reference Opcode: %s\n", OpInfo->Name))); + break; + + default: + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Unknown Reference Opcode %X\n", + ObjDesc->Reference.Opcode)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + } + break; + + + default: + + /* Invalid descriptor */ + + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Bad descriptor type %X in Obj %p\n", + ACPI_GET_DESCRIPTOR_TYPE (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + + /* + * Get one argument type, point to the next + */ + ThisArgType = GET_CURRENT_ARG_TYPE (ArgTypes); + INCREMENT_ARG_LIST (ArgTypes); + + /* + * Handle cases where the object does not need to be + * resolved to a value + */ + switch (ThisArgType) + { + case ARGI_REF_OR_STRING: /* Can be a String or Reference */ + + if ((ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND) && + (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_STRING)) + { + /* + * String found - the string references a named object and must be + * resolved to a node + */ + goto NextOperand; + } + + /* Else not a string - fall through to the normal Reference case below */ + /*lint -fallthrough */ + + case ARGI_REFERENCE: /* References: */ + case ARGI_INTEGER_REF: + case ARGI_OBJECT_REF: + case ARGI_DEVICE_REF: + case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ + case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ + case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ + + /* Need an operand of type ACPI_TYPE_LOCAL_REFERENCE */ + + if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_NAMED) /* Node (name) ptr OK as-is */ + { + goto NextOperand; + } + + Status = AcpiExCheckObjectType (ACPI_TYPE_LOCAL_REFERENCE, + ObjectType, ObjDesc); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + if (AML_NAME_OP == ObjDesc->Reference.Opcode) + { + /* + * Convert an indirect name ptr to direct name ptr and put + * it on the stack + */ + TempNode = ObjDesc->Reference.Object; + AcpiUtRemoveReference (ObjDesc); + (*StackPtr) = TempNode; + } + goto NextOperand; + + + case ARGI_ANYTYPE: + + /* + * We don't want to resolve IndexOp reference objects during + * a store because this would be an implicit DeRefOf operation. + * Instead, we just want to store the reference object. + * -- All others must be resolved below. + */ + if ((Opcode == AML_STORE_OP) && + (ACPI_GET_OBJECT_TYPE (*StackPtr) == ACPI_TYPE_LOCAL_REFERENCE) && + ((*StackPtr)->Reference.Opcode == AML_INDEX_OP)) + { + goto NextOperand; + } + break; + + default: + /* All cases covered above */ + break; + } + + + /* + * Resolve this object to a value + */ + Status = AcpiExResolveToValue (StackPtr, WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Get the resolved object */ + + ObjDesc = *StackPtr; + + /* + * Check the resulting object (value) type + */ + switch (ThisArgType) + { + /* + * For the simple cases, only one type of resolved object + * is allowed + */ + case ARGI_MUTEX: + + /* Need an operand of type ACPI_TYPE_MUTEX */ + + TypeNeeded = ACPI_TYPE_MUTEX; + break; + + case ARGI_EVENT: + + /* Need an operand of type ACPI_TYPE_EVENT */ + + TypeNeeded = ACPI_TYPE_EVENT; + break; + + case ARGI_REGION: + + /* Need an operand of type ACPI_TYPE_REGION */ + + TypeNeeded = ACPI_TYPE_REGION; + break; + + case ARGI_PACKAGE: /* Package */ + + /* Need an operand of type ACPI_TYPE_PACKAGE */ + + TypeNeeded = ACPI_TYPE_PACKAGE; + break; + + case ARGI_ANYTYPE: + + /* Any operand type will do */ + + TypeNeeded = ACPI_TYPE_ANY; + break; + + + /* + * The more complex cases allow multiple resolved object types + */ + case ARGI_INTEGER: /* Number */ + + /* + * Need an operand of type ACPI_TYPE_INTEGER, + * But we can implicitly convert from a STRING or BUFFER + * Aka - "Implicit Source Operand Conversion" + */ + Status = AcpiExConvertToInteger (ObjDesc, StackPtr, WalkState); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_TYPE) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Integer/String/Buffer], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS (Status); + } + goto NextOperand; + + + case ARGI_BUFFER: + + /* + * Need an operand of type ACPI_TYPE_BUFFER, + * But we can implicitly convert from a STRING or INTEGER + * Aka - "Implicit Source Operand Conversion" + */ + Status = AcpiExConvertToBuffer (ObjDesc, StackPtr, WalkState); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_TYPE) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Integer/String/Buffer], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS (Status); + } + goto NextOperand; + + + case ARGI_STRING: + + /* + * Need an operand of type ACPI_TYPE_STRING, + * But we can implicitly convert from a BUFFER or INTEGER + * Aka - "Implicit Source Operand Conversion" + */ + Status = AcpiExConvertToString (ObjDesc, StackPtr, 16, ACPI_UINT32_MAX, WalkState); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_TYPE) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Integer/String/Buffer], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + return_ACPI_STATUS (Status); + } + goto NextOperand; + + + case ARGI_COMPUTEDATA: + + /* Need an operand of type INTEGER, STRING or BUFFER */ + + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* Valid operand */ + break; + + default: + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Integer/String/Buffer], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + goto NextOperand; + + + case ARGI_DATAOBJECT: + /* + * ARGI_DATAOBJECT is only used by the SizeOf operator. + * Need a buffer, string, package, or RefOf reference. + * + * The only reference allowed here is a direct reference to + * a namespace node. + */ + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_LOCAL_REFERENCE: + + /* Valid operand */ + break; + + default: + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Buf/Str/Pkg], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + goto NextOperand; + + + case ARGI_COMPLEXOBJ: + + /* Need a buffer or package or (ACPI 2.0) String */ + + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* Valid operand */ + break; + + default: + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Needed [Buf/Str/Pkg], found [%s] %p\n", + AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); + + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + goto NextOperand; + + + default: + + /* Unknown type */ + + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Internal - Unknown ARGI (required operand) type %X\n", + ThisArgType)); + + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * Make sure that the original object was resolved to the + * required object type (Simple cases only). + */ + Status = AcpiExCheckObjectType (TypeNeeded, + ACPI_GET_OBJECT_TYPE (*StackPtr), *StackPtr); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + +NextOperand: + /* + * If more operands needed, decrement StackPtr to point + * to next operand on stack + */ + if (GET_CURRENT_ARG_TYPE (ArgTypes)) + { + StackPtr--; + } + + } /* while (*Types) */ + + return_ACPI_STATUS (Status); +} + + |