diff options
Diffstat (limited to 'sys/contrib/dev/acpica/dispatcher/dsopcode.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dispatcher/dsopcode.c | 746 |
1 files changed, 4 insertions, 742 deletions
diff --git a/sys/contrib/dev/acpica/dispatcher/dsopcode.c b/sys/contrib/dev/acpica/dispatcher/dsopcode.c index b56e5fc..2f8aae2 100644 --- a/sys/contrib/dev/acpica/dispatcher/dsopcode.c +++ b/sys/contrib/dev/acpica/dispatcher/dsopcode.c @@ -1,7 +1,6 @@ /****************************************************************************** * - * Module Name: dsopcode - Dispatcher Op Region support and handling of - * "control" opcodes + * Module Name: dsopcode - Dispatcher suport for regions and fields * *****************************************************************************/ @@ -60,13 +59,6 @@ /* Local prototypes */ static ACPI_STATUS -AcpiDsExecuteArguments ( - ACPI_NAMESPACE_NODE *Node, - ACPI_NAMESPACE_NODE *ScopeNode, - UINT32 AmlLength, - UINT8 *AmlStart); - -static ACPI_STATUS AcpiDsInitBufferField ( UINT16 AmlOpcode, ACPI_OPERAND_OBJECT *ObjDesc, @@ -78,369 +70,6 @@ AcpiDsInitBufferField ( /******************************************************************************* * - * FUNCTION: AcpiDsExecuteArguments - * - * PARAMETERS: Node - Object NS node - * ScopeNode - Parent NS node - * AmlLength - Length of executable AML - * AmlStart - Pointer to the AML - * - * RETURN: Status. - * - * DESCRIPTION: Late (deferred) execution of region or field arguments - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiDsExecuteArguments ( - ACPI_NAMESPACE_NODE *Node, - ACPI_NAMESPACE_NODE *ScopeNode, - UINT32 AmlLength, - UINT8 *AmlStart) -{ - ACPI_STATUS Status; - ACPI_PARSE_OBJECT *Op; - ACPI_WALK_STATE *WalkState; - - - ACPI_FUNCTION_TRACE (DsExecuteArguments); - - - /* - * Allocate a new parser op to be the root of the parsed tree - */ - Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP); - if (!Op) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Save the Node for use in AcpiPsParseAml */ - - Op->Common.Node = ScopeNode; - - /* Create and initialize a new parser state */ - - WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); - if (!WalkState) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart, - AmlLength, NULL, ACPI_IMODE_LOAD_PASS1); - if (ACPI_FAILURE (Status)) - { - AcpiDsDeleteWalkState (WalkState); - goto Cleanup; - } - - /* Mark this parse as a deferred opcode */ - - WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP; - WalkState->DeferredNode = Node; - - /* Pass1: Parse the entire declaration */ - - Status = AcpiPsParseAml (WalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* Get and init the Op created above */ - - Op->Common.Node = Node; - AcpiPsDeleteParseTree (Op); - - /* Evaluate the deferred arguments */ - - Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP); - if (!Op) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - Op->Common.Node = ScopeNode; - - /* Create and initialize a new parser state */ - - WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); - if (!WalkState) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* Execute the opcode and arguments */ - - Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart, - AmlLength, NULL, ACPI_IMODE_EXECUTE); - if (ACPI_FAILURE (Status)) - { - AcpiDsDeleteWalkState (WalkState); - goto Cleanup; - } - - /* Mark this execution as a deferred opcode */ - - WalkState->DeferredNode = Node; - Status = AcpiPsParseAml (WalkState); - -Cleanup: - AcpiPsDeleteParseTree (Op); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsGetBufferFieldArguments - * - * PARAMETERS: ObjDesc - A valid BufferField object - * - * RETURN: Status. - * - * DESCRIPTION: Get BufferField Buffer and Index. This implements the late - * evaluation of these field attributes. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsGetBufferFieldArguments ( - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_OPERAND_OBJECT *ExtraDesc; - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc); - - - if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) - { - return_ACPI_STATUS (AE_OK); - } - - /* Get the AML pointer (method object) and BufferField node */ - - ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); - Node = ObjDesc->BufferField.Node; - - ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD, Node, NULL)); - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n", - AcpiUtGetNodeName (Node))); - - /* Execute the AML code for the TermArg arguments */ - - Status = AcpiDsExecuteArguments (Node, Node->Parent, - ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsGetBankFieldArguments - * - * PARAMETERS: ObjDesc - A valid BankField object - * - * RETURN: Status. - * - * DESCRIPTION: Get BankField BankValue. This implements the late - * evaluation of these field attributes. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsGetBankFieldArguments ( - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_OPERAND_OBJECT *ExtraDesc; - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc); - - - if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) - { - return_ACPI_STATUS (AE_OK); - } - - /* Get the AML pointer (method object) and BankField node */ - - ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); - Node = ObjDesc->BankField.Node; - - ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL)); - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n", - AcpiUtGetNodeName (Node))); - - /* Execute the AML code for the TermArg arguments */ - - Status = AcpiDsExecuteArguments (Node, Node->Parent, - ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsGetBufferArguments - * - * PARAMETERS: ObjDesc - A valid Buffer object - * - * RETURN: Status. - * - * DESCRIPTION: Get Buffer length and initializer byte list. This implements - * the late evaluation of these attributes. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsGetBufferArguments ( - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc); - - - if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) - { - return_ACPI_STATUS (AE_OK); - } - - /* Get the Buffer node */ - - Node = ObjDesc->Buffer.Node; - if (!Node) - { - ACPI_ERROR ((AE_INFO, - "No pointer back to namespace node in buffer object %p", ObjDesc)); - return_ACPI_STATUS (AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n")); - - /* Execute the AML code for the TermArg arguments */ - - Status = AcpiDsExecuteArguments (Node, Node, - ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsGetPackageArguments - * - * PARAMETERS: ObjDesc - A valid Package object - * - * RETURN: Status. - * - * DESCRIPTION: Get Package length and initializer byte list. This implements - * the late evaluation of these attributes. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsGetPackageArguments ( - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc); - - - if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) - { - return_ACPI_STATUS (AE_OK); - } - - /* Get the Package node */ - - Node = ObjDesc->Package.Node; - if (!Node) - { - ACPI_ERROR ((AE_INFO, - "No pointer back to namespace node in package %p", ObjDesc)); - return_ACPI_STATUS (AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n")); - - /* Execute the AML code for the TermArg arguments */ - - Status = AcpiDsExecuteArguments (Node, Node, - ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart); - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiDsGetRegionArguments - * - * PARAMETERS: ObjDesc - A valid region object - * - * RETURN: Status. - * - * DESCRIPTION: Get region address and length. This implements the late - * evaluation of these region attributes. - * - ****************************************************************************/ - -ACPI_STATUS -AcpiDsGetRegionArguments ( - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_NAMESPACE_NODE *Node; - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ExtraDesc; - - - ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc); - - - if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID) - { - return_ACPI_STATUS (AE_OK); - } - - ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc); - if (!ExtraDesc) - { - return_ACPI_STATUS (AE_NOT_EXIST); - } - - /* Get the Region node */ - - Node = ObjDesc->Region.Node; - - ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL)); - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n", - AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart)); - - /* Execute the argument AML */ - - Status = AcpiDsExecuteArguments (Node, Node->Parent, - ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * * FUNCTION: AcpiDsInitializeRegion * * PARAMETERS: ObjHandle - Region namespace node @@ -870,8 +499,9 @@ AcpiDsEvalRegionOperands ( * * RETURN: Status * - * DESCRIPTION: Get region address and length - * Called from AcpiDsExecEndOp during DataTableRegion parse tree walk + * DESCRIPTION: Get region address and length. + * Called from AcpiDsExecEndOp during DataTableRegion parse + * tree walk. * ******************************************************************************/ @@ -1177,371 +807,3 @@ AcpiDsEvalBankFieldOperands ( return_ACPI_STATUS (Status); } - -/******************************************************************************* - * - * FUNCTION: AcpiDsExecBeginControlOp - * - * PARAMETERS: WalkList - The list that owns the walk stack - * Op - The control Op - * - * RETURN: Status - * - * DESCRIPTION: Handles all control ops encountered during control method - * execution. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsExecBeginControlOp ( - ACPI_WALK_STATE *WalkState, - ACPI_PARSE_OBJECT *Op) -{ - ACPI_STATUS Status = AE_OK; - ACPI_GENERIC_STATE *ControlState; - - - ACPI_FUNCTION_NAME (DsExecBeginControlOp); - - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", Op, - Op->Common.AmlOpcode, WalkState)); - - switch (Op->Common.AmlOpcode) - { - case AML_WHILE_OP: - - /* - * If this is an additional iteration of a while loop, continue. - * There is no need to allocate a new control state. - */ - if (WalkState->ControlState) - { - if (WalkState->ControlState->Control.AmlPredicateStart == - (WalkState->ParserState.Aml - 1)) - { - /* Reset the state to start-of-loop */ - - WalkState->ControlState->Common.State = ACPI_CONTROL_CONDITIONAL_EXECUTING; - break; - } - } - - /*lint -fallthrough */ - - case AML_IF_OP: - - /* - * IF/WHILE: Create a new control state to manage these - * constructs. We need to manage these as a stack, in order - * to handle nesting. - */ - ControlState = AcpiUtCreateControlState (); - if (!ControlState) - { - Status = AE_NO_MEMORY; - break; - } - /* - * Save a pointer to the predicate for multiple executions - * of a loop - */ - ControlState->Control.AmlPredicateStart = WalkState->ParserState.Aml - 1; - ControlState->Control.PackageEnd = WalkState->ParserState.PkgEnd; - ControlState->Control.Opcode = Op->Common.AmlOpcode; - - - /* Push the control state on this walk's control stack */ - - AcpiUtPushGenericState (&WalkState->ControlState, ControlState); - break; - - case AML_ELSE_OP: - - /* Predicate is in the state object */ - /* If predicate is true, the IF was executed, ignore ELSE part */ - - if (WalkState->LastPredicate) - { - Status = AE_CTRL_TRUE; - } - - break; - - case AML_RETURN_OP: - - break; - - default: - break; - } - - return (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsExecEndControlOp - * - * PARAMETERS: WalkList - The list that owns the walk stack - * Op - The control Op - * - * RETURN: Status - * - * DESCRIPTION: Handles all control ops encountered during control method - * execution. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsExecEndControlOp ( - ACPI_WALK_STATE *WalkState, - ACPI_PARSE_OBJECT *Op) -{ - ACPI_STATUS Status = AE_OK; - ACPI_GENERIC_STATE *ControlState; - - - ACPI_FUNCTION_NAME (DsExecEndControlOp); - - - switch (Op->Common.AmlOpcode) - { - case AML_IF_OP: - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", Op)); - - /* - * Save the result of the predicate in case there is an - * ELSE to come - */ - WalkState->LastPredicate = - (BOOLEAN) WalkState->ControlState->Common.Value; - - /* - * Pop the control state that was created at the start - * of the IF and free it - */ - ControlState = AcpiUtPopGenericState (&WalkState->ControlState); - AcpiUtDeleteGenericState (ControlState); - break; - - - case AML_ELSE_OP: - - break; - - - case AML_WHILE_OP: - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", Op)); - - ControlState = WalkState->ControlState; - if (ControlState->Common.Value) - { - /* Predicate was true, the body of the loop was just executed */ - - /* - * This loop counter mechanism allows the interpreter to escape - * possibly infinite loops. This can occur in poorly written AML - * when the hardware does not respond within a while loop and the - * loop does not implement a timeout. - */ - ControlState->Control.LoopCount++; - if (ControlState->Control.LoopCount > ACPI_MAX_LOOP_ITERATIONS) - { - Status = AE_AML_INFINITE_LOOP; - break; - } - - /* - * Go back and evaluate the predicate and maybe execute the loop - * another time - */ - Status = AE_CTRL_PENDING; - WalkState->AmlLastWhile = ControlState->Control.AmlPredicateStart; - break; - } - - /* Predicate was false, terminate this while loop */ - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, - "[WHILE_OP] termination! Op=%p\n",Op)); - - /* Pop this control state and free it */ - - ControlState = AcpiUtPopGenericState (&WalkState->ControlState); - AcpiUtDeleteGenericState (ControlState); - break; - - - case AML_RETURN_OP: - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, - "[RETURN_OP] Op=%p Arg=%p\n",Op, Op->Common.Value.Arg)); - - /* - * One optional operand -- the return value - * It can be either an immediate operand or a result that - * has been bubbled up the tree - */ - if (Op->Common.Value.Arg) - { - /* Since we have a real Return(), delete any implicit return */ - - AcpiDsClearImplicitReturn (WalkState); - - /* Return statement has an immediate operand */ - - Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg); - if (ACPI_FAILURE (Status)) - { - return (Status); - } - - /* - * If value being returned is a Reference (such as - * an arg or local), resolve it now because it may - * cease to exist at the end of the method. - */ - Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); - if (ACPI_FAILURE (Status)) - { - return (Status); - } - - /* - * Get the return value and save as the last result - * value. This is the only place where WalkState->ReturnDesc - * is set to anything other than zero! - */ - WalkState->ReturnDesc = WalkState->Operands[0]; - } - else if (WalkState->ResultCount) - { - /* Since we have a real Return(), delete any implicit return */ - - AcpiDsClearImplicitReturn (WalkState); - - /* - * The return value has come from a previous calculation. - * - * If value being returned is a Reference (such as - * an arg or local), resolve it now because it may - * cease to exist at the end of the method. - * - * Allow references created by the Index operator to return unchanged. - */ - if ((ACPI_GET_DESCRIPTOR_TYPE (WalkState->Results->Results.ObjDesc[0]) == ACPI_DESC_TYPE_OPERAND) && - ((WalkState->Results->Results.ObjDesc [0])->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && - ((WalkState->Results->Results.ObjDesc [0])->Reference.Class != ACPI_REFCLASS_INDEX)) - { - Status = AcpiExResolveToValue (&WalkState->Results->Results.ObjDesc [0], WalkState); - if (ACPI_FAILURE (Status)) - { - return (Status); - } - } - - WalkState->ReturnDesc = WalkState->Results->Results.ObjDesc [0]; - } - else - { - /* No return operand */ - - if (WalkState->NumOperands) - { - AcpiUtRemoveReference (WalkState->Operands [0]); - } - - WalkState->Operands [0] = NULL; - WalkState->NumOperands = 0; - WalkState->ReturnDesc = NULL; - } - - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, - "Completed RETURN_OP State=%p, RetVal=%p\n", - WalkState, WalkState->ReturnDesc)); - - /* End the control method execution right now */ - - Status = AE_CTRL_TERMINATE; - break; - - - case AML_NOOP_OP: - - /* Just do nothing! */ - break; - - - case AML_BREAK_POINT_OP: - - /* - * Set the single-step flag. This will cause the debugger (if present) - * to break to the console within the AML debugger at the start of the - * next AML instruction. - */ - ACPI_DEBUGGER_EXEC ( - AcpiGbl_CmSingleStep = TRUE); - ACPI_DEBUGGER_EXEC ( - AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n")); - - /* Call to the OSL in case OS wants a piece of the action */ - - Status = AcpiOsSignal (ACPI_SIGNAL_BREAKPOINT, - "Executed AML Breakpoint opcode"); - break; - - - case AML_BREAK_OP: - case AML_CONTINUE_OP: /* ACPI 2.0 */ - - - /* Pop and delete control states until we find a while */ - - while (WalkState->ControlState && - (WalkState->ControlState->Control.Opcode != AML_WHILE_OP)) - { - ControlState = AcpiUtPopGenericState (&WalkState->ControlState); - AcpiUtDeleteGenericState (ControlState); - } - - /* No while found? */ - - if (!WalkState->ControlState) - { - return (AE_AML_NO_WHILE); - } - - /* Was: WalkState->AmlLastWhile = WalkState->ControlState->Control.AmlPredicateStart; */ - - WalkState->AmlLastWhile = WalkState->ControlState->Control.PackageEnd; - - /* Return status depending on opcode */ - - if (Op->Common.AmlOpcode == AML_BREAK_OP) - { - Status = AE_CTRL_BREAK; - } - else - { - Status = AE_CTRL_CONTINUE; - } - break; - - - default: - - ACPI_ERROR ((AE_INFO, "Unknown control opcode=0x%X Op=%p", - Op->Common.AmlOpcode, Op)); - - Status = AE_AML_BAD_OPCODE; - break; - } - - return (Status); -} - |
