summaryrefslogtreecommitdiffstats
path: root/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/contrib/dev/acpica/components/dispatcher/dsopcode.c')
-rw-r--r--sys/contrib/dev/acpica/components/dispatcher/dsopcode.c809
1 files changed, 809 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c b/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
new file mode 100644
index 0000000..b7ff590
--- /dev/null
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
@@ -0,0 +1,809 @@
+/******************************************************************************
+ *
+ * Module Name: dsopcode - Dispatcher support for regions and fields
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2013, 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 __DSOPCODE_C__
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acparser.h>
+#include <contrib/dev/acpica/include/amlcode.h>
+#include <contrib/dev/acpica/include/acdispat.h>
+#include <contrib/dev/acpica/include/acinterp.h>
+#include <contrib/dev/acpica/include/acnamesp.h>
+#include <contrib/dev/acpica/include/acevents.h>
+#include <contrib/dev/acpica/include/actables.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ ACPI_MODULE_NAME ("dsopcode")
+
+/* Local prototypes */
+
+static ACPI_STATUS
+AcpiDsInitBufferField (
+ UINT16 AmlOpcode,
+ ACPI_OPERAND_OBJECT *ObjDesc,
+ ACPI_OPERAND_OBJECT *BufferDesc,
+ ACPI_OPERAND_OBJECT *OffsetDesc,
+ ACPI_OPERAND_OBJECT *LengthDesc,
+ ACPI_OPERAND_OBJECT *ResultDesc);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsInitializeRegion
+ *
+ * PARAMETERS: ObjHandle - Region namespace node
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Front end to EvInitializeRegion
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsInitializeRegion (
+ ACPI_HANDLE ObjHandle)
+{
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_STATUS Status;
+
+
+ ObjDesc = AcpiNsGetAttachedObject (ObjHandle);
+
+ /* Namespace is NOT locked */
+
+ Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
+ return (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsInitBufferField
+ *
+ * PARAMETERS: AmlOpcode - CreateXxxField
+ * ObjDesc - BufferField object
+ * BufferDesc - Host Buffer
+ * OffsetDesc - Offset into buffer
+ * LengthDesc - Length of field (CREATE_FIELD_OP only)
+ * ResultDesc - Where to store the result
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform actual initialization of a buffer field
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiDsInitBufferField (
+ UINT16 AmlOpcode,
+ ACPI_OPERAND_OBJECT *ObjDesc,
+ ACPI_OPERAND_OBJECT *BufferDesc,
+ ACPI_OPERAND_OBJECT *OffsetDesc,
+ ACPI_OPERAND_OBJECT *LengthDesc,
+ ACPI_OPERAND_OBJECT *ResultDesc)
+{
+ UINT32 Offset;
+ UINT32 BitOffset;
+ UINT32 BitCount;
+ UINT8 FieldFlags;
+ ACPI_STATUS Status;
+
+
+ ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc);
+
+
+ /* Host object must be a Buffer */
+
+ if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER)
+ {
+ ACPI_ERROR ((AE_INFO,
+ "Target of Create Field is not a Buffer object - %s",
+ AcpiUtGetObjectTypeName (BufferDesc)));
+
+ Status = AE_AML_OPERAND_TYPE;
+ goto Cleanup;
+ }
+
+ /*
+ * The last parameter to all of these opcodes (ResultDesc) started
+ * out as a NameString, and should therefore now be a NS node
+ * after resolution in AcpiExResolveOperands().
+ */
+ if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED)
+ {
+ ACPI_ERROR ((AE_INFO,
+ "(%s) destination not a NS Node [%s]",
+ AcpiPsGetOpcodeName (AmlOpcode),
+ AcpiUtGetDescriptorName (ResultDesc)));
+
+ Status = AE_AML_OPERAND_TYPE;
+ goto Cleanup;
+ }
+
+ Offset = (UINT32) OffsetDesc->Integer.Value;
+
+ /*
+ * Setup the Bit offsets and counts, according to the opcode
+ */
+ switch (AmlOpcode)
+ {
+ case AML_CREATE_FIELD_OP:
+
+ /* Offset is in bits, count is in bits */
+
+ FieldFlags = AML_FIELD_ACCESS_BYTE;
+ BitOffset = Offset;
+ BitCount = (UINT32) LengthDesc->Integer.Value;
+
+ /* Must have a valid (>0) bit count */
+
+ if (BitCount == 0)
+ {
+ ACPI_ERROR ((AE_INFO,
+ "Attempt to CreateField of length zero"));
+ Status = AE_AML_OPERAND_VALUE;
+ goto Cleanup;
+ }
+ break;
+
+ case AML_CREATE_BIT_FIELD_OP:
+
+ /* Offset is in bits, Field is one bit */
+
+ BitOffset = Offset;
+ BitCount = 1;
+ FieldFlags = AML_FIELD_ACCESS_BYTE;
+ break;
+
+ case AML_CREATE_BYTE_FIELD_OP:
+
+ /* Offset is in bytes, field is one byte */
+
+ BitOffset = 8 * Offset;
+ BitCount = 8;
+ FieldFlags = AML_FIELD_ACCESS_BYTE;
+ break;
+
+ case AML_CREATE_WORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one word */
+
+ BitOffset = 8 * Offset;
+ BitCount = 16;
+ FieldFlags = AML_FIELD_ACCESS_WORD;
+ break;
+
+ case AML_CREATE_DWORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one dword */
+
+ BitOffset = 8 * Offset;
+ BitCount = 32;
+ FieldFlags = AML_FIELD_ACCESS_DWORD;
+ break;
+
+ case AML_CREATE_QWORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one qword */
+
+ BitOffset = 8 * Offset;
+ BitCount = 64;
+ FieldFlags = AML_FIELD_ACCESS_QWORD;
+ break;
+
+ default:
+
+ ACPI_ERROR ((AE_INFO,
+ "Unknown field creation opcode 0x%02X",
+ AmlOpcode));
+ Status = AE_AML_BAD_OPCODE;
+ goto Cleanup;
+ }
+
+ /* Entire field must fit within the current length of the buffer */
+
+ if ((BitOffset + BitCount) >
+ (8 * (UINT32) BufferDesc->Buffer.Length))
+ {
+ ACPI_ERROR ((AE_INFO,
+ "Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)",
+ AcpiUtGetNodeName (ResultDesc),
+ BitOffset + BitCount,
+ AcpiUtGetNodeName (BufferDesc->Buffer.Node),
+ 8 * (UINT32) BufferDesc->Buffer.Length));
+ Status = AE_AML_BUFFER_LIMIT;
+ goto Cleanup;
+ }
+
+ /*
+ * Initialize areas of the field object that are common to all fields
+ * For FieldFlags, use LOCK_RULE = 0 (NO_LOCK),
+ * UPDATE_RULE = 0 (UPDATE_PRESERVE)
+ */
+ Status = AcpiExPrepCommonFieldObject (ObjDesc, FieldFlags, 0,
+ BitOffset, BitCount);
+ if (ACPI_FAILURE (Status))
+ {
+ goto Cleanup;
+ }
+
+ ObjDesc->BufferField.BufferObj = BufferDesc;
+
+ /* Reference count for BufferDesc inherits ObjDesc count */
+
+ BufferDesc->Common.ReferenceCount = (UINT16)
+ (BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount);
+
+
+Cleanup:
+
+ /* Always delete the operands */
+
+ AcpiUtRemoveReference (OffsetDesc);
+ AcpiUtRemoveReference (BufferDesc);
+
+ if (AmlOpcode == AML_CREATE_FIELD_OP)
+ {
+ AcpiUtRemoveReference (LengthDesc);
+ }
+
+ /* On failure, delete the result descriptor */
+
+ if (ACPI_FAILURE (Status))
+ {
+ AcpiUtRemoveReference (ResultDesc); /* Result descriptor */
+ }
+ else
+ {
+ /* Now the address and length are valid for this BufferField */
+
+ ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID;
+ }
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsEvalBufferFieldOperands
+ *
+ * PARAMETERS: WalkState - Current walk
+ * Op - A valid BufferField Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get BufferField Buffer and Index
+ * Called from AcpiDsExecEndOp during BufferField parse tree walk
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsEvalBufferFieldOperands (
+ ACPI_WALK_STATE *WalkState,
+ ACPI_PARSE_OBJECT *Op)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_PARSE_OBJECT *NextOp;
+
+
+ ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op);
+
+
+ /*
+ * This is where we evaluate the address and length fields of the
+ * CreateXxxField declaration
+ */
+ Node = Op->Common.Node;
+
+ /* NextOp points to the op that holds the Buffer */
+
+ NextOp = Op->Common.Value.Arg;
+
+ /* Evaluate/create the address and length operands */
+
+ Status = AcpiDsCreateOperands (WalkState, NextOp);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ ObjDesc = AcpiNsGetAttachedObject (Node);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ /* Resolve the operands */
+
+ Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
+ ACPI_WALK_OPERANDS, WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X",
+ AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status));
+
+ return_ACPI_STATUS (Status);
+ }
+
+ /* Initialize the Buffer Field */
+
+ if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
+ {
+ /* NOTE: Slightly different operands for this opcode */
+
+ Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
+ WalkState->Operands[0], WalkState->Operands[1],
+ WalkState->Operands[2], WalkState->Operands[3]);
+ }
+ else
+ {
+ /* All other, CreateXxxField opcodes */
+
+ Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
+ WalkState->Operands[0], WalkState->Operands[1],
+ NULL, WalkState->Operands[2]);
+ }
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsEvalRegionOperands
+ *
+ * PARAMETERS: WalkState - Current walk
+ * Op - A valid region Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get region address and length
+ * Called from AcpiDsExecEndOp during OpRegion parse tree walk
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsEvalRegionOperands (
+ ACPI_WALK_STATE *WalkState,
+ ACPI_PARSE_OBJECT *Op)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_OPERAND_OBJECT *OperandDesc;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_PARSE_OBJECT *NextOp;
+
+
+ ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op);
+
+
+ /*
+ * This is where we evaluate the address and length fields of the
+ * OpRegion declaration
+ */
+ Node = Op->Common.Node;
+
+ /* NextOp points to the op that holds the SpaceID */
+
+ NextOp = Op->Common.Value.Arg;
+
+ /* NextOp points to address op */
+
+ NextOp = NextOp->Common.Next;
+
+ /* Evaluate/create the address and length operands */
+
+ Status = AcpiDsCreateOperands (WalkState, NextOp);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ /* Resolve the length and address operands to numbers */
+
+ Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
+ ACPI_WALK_OPERANDS, WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ ObjDesc = AcpiNsGetAttachedObject (Node);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ /*
+ * Get the length operand and save it
+ * (at Top of stack)
+ */
+ OperandDesc = WalkState->Operands[WalkState->NumOperands - 1];
+
+ ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value;
+ AcpiUtRemoveReference (OperandDesc);
+
+ /*
+ * Get the address and save it
+ * (at top of stack - 1)
+ */
+ OperandDesc = WalkState->Operands[WalkState->NumOperands - 2];
+
+ ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS)
+ OperandDesc->Integer.Value;
+ AcpiUtRemoveReference (OperandDesc);
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
+ ObjDesc,
+ ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address),
+ ObjDesc->Region.Length));
+
+ /* Now the address and length are valid for this opregion */
+
+ ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsEvalTableRegionOperands
+ *
+ * PARAMETERS: WalkState - Current walk
+ * Op - A valid region Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get region address and length.
+ * Called from AcpiDsExecEndOp during DataTableRegion parse
+ * tree walk.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsEvalTableRegionOperands (
+ ACPI_WALK_STATE *WalkState,
+ ACPI_PARSE_OBJECT *Op)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_OPERAND_OBJECT **Operand;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_PARSE_OBJECT *NextOp;
+ UINT32 TableIndex;
+ ACPI_TABLE_HEADER *Table;
+
+
+ ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);
+
+
+ /*
+ * This is where we evaluate the Signature string, OemId string,
+ * and OemTableId string of the Data Table Region declaration
+ */
+ Node = Op->Common.Node;
+
+ /* NextOp points to Signature string op */
+
+ NextOp = Op->Common.Value.Arg;
+
+ /*
+ * Evaluate/create the Signature string, OemId string,
+ * and OemTableId string operands
+ */
+ Status = AcpiDsCreateOperands (WalkState, NextOp);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ /*
+ * Resolve the Signature string, OemId string,
+ * and OemTableId string operands
+ */
+ Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
+ ACPI_WALK_OPERANDS, WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Operand = &WalkState->Operands[0];
+
+ /* Find the ACPI table */
+
+ Status = AcpiTbFindTable (Operand[0]->String.Pointer,
+ Operand[1]->String.Pointer, Operand[2]->String.Pointer,
+ &TableIndex);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ AcpiUtRemoveReference (Operand[0]);
+ AcpiUtRemoveReference (Operand[1]);
+ AcpiUtRemoveReference (Operand[2]);
+
+ Status = AcpiGetTableByIndex (TableIndex, &Table);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ ObjDesc = AcpiNsGetAttachedObject (Node);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
+ ObjDesc->Region.Length = Table->Length;
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
+ ObjDesc,
+ ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address),
+ ObjDesc->Region.Length));
+
+ /* Now the address and length are valid for this opregion */
+
+ ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsEvalDataObjectOperands
+ *
+ * PARAMETERS: WalkState - Current walk
+ * Op - A valid DataObject Op object
+ * ObjDesc - DataObject
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get the operands and complete the following data object types:
+ * Buffer, Package.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsEvalDataObjectOperands (
+ ACPI_WALK_STATE *WalkState,
+ ACPI_PARSE_OBJECT *Op,
+ ACPI_OPERAND_OBJECT *ObjDesc)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ArgDesc;
+ UINT32 Length;
+
+
+ ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands);
+
+
+ /* The first operand (for all of these data objects) is the length */
+
+ /*
+ * Set proper index into operand stack for AcpiDsObjStackPush
+ * invoked inside AcpiDsCreateOperand.
+ */
+ WalkState->OperandIndex = WalkState->NumOperands;
+
+ Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiExResolveOperands (WalkState->Opcode,
+ &(WalkState->Operands [WalkState->NumOperands -1]),
+ WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ /* Extract length operand */
+
+ ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
+ Length = (UINT32) ArgDesc->Integer.Value;
+
+ /* Cleanup for length operand */
+
+ Status = AcpiDsObjStackPop (1, WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ AcpiUtRemoveReference (ArgDesc);
+
+ /*
+ * Create the actual data object
+ */
+ switch (Op->Common.AmlOpcode)
+ {
+ case AML_BUFFER_OP:
+
+ Status = AcpiDsBuildInternalBufferObj (WalkState, Op, Length, &ObjDesc);
+ break;
+
+ case AML_PACKAGE_OP:
+ case AML_VAR_PACKAGE_OP:
+
+ Status = AcpiDsBuildInternalPackageObj (WalkState, Op, Length, &ObjDesc);
+ break;
+
+ default:
+
+ return_ACPI_STATUS (AE_AML_BAD_OPCODE);
+ }
+
+ if (ACPI_SUCCESS (Status))
+ {
+ /*
+ * Return the object in the WalkState, unless the parent is a package -
+ * in this case, the return object will be stored in the parse tree
+ * for the package.
+ */
+ if ((!Op->Common.Parent) ||
+ ((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) &&
+ (Op->Common.Parent->Common.AmlOpcode != AML_VAR_PACKAGE_OP) &&
+ (Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP)))
+ {
+ WalkState->ResultObj = ObjDesc;
+ }
+ }
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiDsEvalBankFieldOperands
+ *
+ * PARAMETERS: WalkState - Current walk
+ * Op - A valid BankField Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get BankField BankValue
+ * Called from AcpiDsExecEndOp during BankField parse tree walk
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsEvalBankFieldOperands (
+ ACPI_WALK_STATE *WalkState,
+ ACPI_PARSE_OBJECT *Op)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_OPERAND_OBJECT *OperandDesc;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_PARSE_OBJECT *NextOp;
+ ACPI_PARSE_OBJECT *Arg;
+
+
+ ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op);
+
+
+ /*
+ * This is where we evaluate the BankValue field of the
+ * BankField declaration
+ */
+
+ /* NextOp points to the op that holds the Region */
+
+ NextOp = Op->Common.Value.Arg;
+
+ /* NextOp points to the op that holds the Bank Register */
+
+ NextOp = NextOp->Common.Next;
+
+ /* NextOp points to the op that holds the Bank Value */
+
+ NextOp = NextOp->Common.Next;
+
+ /*
+ * Set proper index into operand stack for AcpiDsObjStackPush
+ * invoked inside AcpiDsCreateOperand.
+ *
+ * We use WalkState->Operands[0] to store the evaluated BankValue
+ */
+ WalkState->OperandIndex = 0;
+
+ Status = AcpiDsCreateOperand (WalkState, NextOp, 0);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS,
+ AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1);
+ /*
+ * Get the BankValue operand and save it
+ * (at Top of stack)
+ */
+ OperandDesc = WalkState->Operands[0];
+
+ /* Arg points to the start Bank Field */
+
+ Arg = AcpiPsGetArg (Op, 4);
+ while (Arg)
+ {
+ /* Ignore OFFSET and ACCESSAS terms here */
+
+ if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
+ {
+ Node = Arg->Common.Node;
+
+ ObjDesc = AcpiNsGetAttachedObject (Node);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value;
+ }
+
+ /* Move to next field in the list */
+
+ Arg = Arg->Common.Next;
+ }
+
+ AcpiUtRemoveReference (OperandDesc);
+ return_ACPI_STATUS (Status);
+}
OpenPOWER on IntegriCloud