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-rw-r--r--source/components/namespace/nsarguments.c750
1 files changed, 375 insertions, 375 deletions
diff --git a/source/components/namespace/nsarguments.c b/source/components/namespace/nsarguments.c
index 2e4c4db97..792cd596a 100644
--- a/source/components/namespace/nsarguments.c
+++ b/source/components/namespace/nsarguments.c
@@ -1,375 +1,375 @@
-/******************************************************************************
- *
- * Module Name: nsarguments - Validation of args for ACPI predefined methods
- *
- *****************************************************************************/
-
-/******************************************************************************
- *
- * 1. Copyright Notice
- *
- * Some or all of this work - Copyright (c) 1999 - 2015, 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.
- *
- *****************************************************************************/
-
-#include "acpi.h"
-#include "accommon.h"
-#include "acnamesp.h"
-#include "acpredef.h"
-
-
-#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nsarguments")
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiNsCheckArgumentTypes
- *
- * PARAMETERS: Info - Method execution information block
- *
- * RETURN: None
- *
- * DESCRIPTION: Check the incoming argument count and all argument types
- * against the argument type list for a predefined name.
- *
- ******************************************************************************/
-
-void
-AcpiNsCheckArgumentTypes (
- ACPI_EVALUATE_INFO *Info)
-{
- UINT16 ArgTypeList;
- UINT8 ArgCount;
- UINT8 ArgType;
- UINT8 UserArgType;
- UINT32 i;
-
-
- /* If not a predefined name, cannot typecheck args */
-
- if (!Info->Predefined)
- {
- return;
- }
-
- ArgTypeList = Info->Predefined->Info.ArgumentList;
- ArgCount = METHOD_GET_ARG_COUNT (ArgTypeList);
-
- /* Typecheck all arguments */
-
- for (i = 0; ((i < ArgCount) && (i < Info->ParamCount)); i++)
- {
- ArgType = METHOD_GET_NEXT_TYPE (ArgTypeList);
- UserArgType = Info->Parameters[i]->Common.Type;
-
- if (UserArgType != ArgType)
- {
- ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS,
- "Argument #%u type mismatch - "
- "Found [%s], ACPI requires [%s]", (i + 1),
- AcpiUtGetTypeName (UserArgType),
- AcpiUtGetTypeName (ArgType)));
- }
- }
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiNsCheckAcpiCompliance
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * Node - Namespace node for the method/object
- * Predefined - Pointer to entry in predefined name table
- *
- * RETURN: None
- *
- * DESCRIPTION: Check that the declared parameter count (in ASL/AML) for a
- * predefined name is what is expected (matches what is defined in
- * the ACPI specification for this predefined name.)
- *
- ******************************************************************************/
-
-void
-AcpiNsCheckAcpiCompliance (
- char *Pathname,
- ACPI_NAMESPACE_NODE *Node,
- const ACPI_PREDEFINED_INFO *Predefined)
-{
- UINT32 AmlParamCount;
- UINT32 RequiredParamCount;
-
-
- if (!Predefined)
- {
- return;
- }
-
- /* Get the ACPI-required arg count from the predefined info table */
-
- RequiredParamCount = METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
-
- /*
- * If this object is not a control method, we can check if the ACPI
- * spec requires that it be a method.
- */
- if (Node->Type != ACPI_TYPE_METHOD)
- {
- if (RequiredParamCount > 0)
- {
- /* Object requires args, must be implemented as a method */
-
- ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Object (%s) must be a control method with %u arguments",
- AcpiUtGetTypeName (Node->Type), RequiredParamCount));
- }
- else if (!RequiredParamCount && !Predefined->Info.ExpectedBtypes)
- {
- /* Object requires no args and no return value, must be a method */
-
- ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Object (%s) must be a control method "
- "with no arguments and no return value",
- AcpiUtGetTypeName (Node->Type)));
- }
-
- return;
- }
-
- /*
- * This is a control method.
- * Check that the ASL/AML-defined parameter count for this method
- * matches the ACPI-required parameter count
- *
- * Some methods are allowed to have a "minimum" number of args (_SCP)
- * because their definition in ACPI has changed over time.
- *
- * Note: These are BIOS errors in the declaration of the object
- */
- AmlParamCount = Node->Object->Method.ParamCount;
-
- if (AmlParamCount < RequiredParamCount)
- {
- ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Insufficient arguments - "
- "ASL declared %u, ACPI requires %u",
- AmlParamCount, RequiredParamCount));
- }
- else if ((AmlParamCount > RequiredParamCount) &&
- !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
- {
- ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Excess arguments - "
- "ASL declared %u, ACPI requires %u",
- AmlParamCount, RequiredParamCount));
- }
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiNsCheckArgumentCount
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * Node - Namespace node for the method/object
- * UserParamCount - Number of args passed in by the caller
- * Predefined - Pointer to entry in predefined name table
- *
- * RETURN: None
- *
- * DESCRIPTION: Check that incoming argument count matches the declared
- * parameter count (in the ASL/AML) for an object.
- *
- ******************************************************************************/
-
-void
-AcpiNsCheckArgumentCount (
- char *Pathname,
- ACPI_NAMESPACE_NODE *Node,
- UINT32 UserParamCount,
- const ACPI_PREDEFINED_INFO *Predefined)
-{
- UINT32 AmlParamCount;
- UINT32 RequiredParamCount;
-
-
- if (!Predefined)
- {
- /*
- * Not a predefined name. Check the incoming user argument count
- * against the count that is specified in the method/object.
- */
- if (Node->Type != ACPI_TYPE_METHOD)
- {
- if (UserParamCount)
- {
- ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "%u arguments were passed to a non-method ACPI object (%s)",
- UserParamCount, AcpiUtGetTypeName (Node->Type)));
- }
-
- return;
- }
-
- /*
- * This is a control method. Check the parameter count.
- * We can only check the incoming argument count against the
- * argument count declared for the method in the ASL/AML.
- *
- * Emit a message if too few or too many arguments have been passed
- * by the caller.
- *
- * Note: Too many arguments will not cause the method to
- * fail. However, the method will fail if there are too few
- * arguments and the method attempts to use one of the missing ones.
- */
- AmlParamCount = Node->Object->Method.ParamCount;
-
- if (UserParamCount < AmlParamCount)
- {
- ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Insufficient arguments - "
- "Caller passed %u, method requires %u",
- UserParamCount, AmlParamCount));
- }
- else if (UserParamCount > AmlParamCount)
- {
- ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Excess arguments - "
- "Caller passed %u, method requires %u",
- UserParamCount, AmlParamCount));
- }
-
- return;
- }
-
- /*
- * This is a predefined name. Validate the user-supplied parameter
- * count against the ACPI specification. We don't validate against
- * the method itself because what is important here is that the
- * caller is in conformance with the spec. (The arg count for the
- * method was checked against the ACPI spec earlier.)
- *
- * Some methods are allowed to have a "minimum" number of args (_SCP)
- * because their definition in ACPI has changed over time.
- */
- RequiredParamCount = METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
-
- if (UserParamCount < RequiredParamCount)
- {
- ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Insufficient arguments - "
- "Caller passed %u, ACPI requires %u",
- UserParamCount, RequiredParamCount));
- }
- else if ((UserParamCount > RequiredParamCount) &&
- !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
- {
- ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
- "Excess arguments - "
- "Caller passed %u, ACPI requires %u",
- UserParamCount, RequiredParamCount));
- }
-}
+/******************************************************************************
+ *
+ * Module Name: nsarguments - Validation of args for ACPI predefined methods
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2014, 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.
+ *
+ *****************************************************************************/
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acpredef.h"
+
+
+#define _COMPONENT ACPI_NAMESPACE
+ ACPI_MODULE_NAME ("nsarguments")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsCheckArgumentTypes
+ *
+ * PARAMETERS: Info - Method execution information block
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Check the incoming argument count and all argument types
+ * against the argument type list for a predefined name.
+ *
+ ******************************************************************************/
+
+void
+AcpiNsCheckArgumentTypes (
+ ACPI_EVALUATE_INFO *Info)
+{
+ UINT16 ArgTypeList;
+ UINT8 ArgCount;
+ UINT8 ArgType;
+ UINT8 UserArgType;
+ UINT32 i;
+
+
+ /* If not a predefined name, cannot typecheck args */
+
+ if (!Info->Predefined)
+ {
+ return;
+ }
+
+ ArgTypeList = Info->Predefined->Info.ArgumentList;
+ ArgCount = METHOD_GET_ARG_COUNT (ArgTypeList);
+
+ /* Typecheck all arguments */
+
+ for (i = 0; ((i < ArgCount) && (i < Info->ParamCount)); i++)
+ {
+ ArgType = METHOD_GET_NEXT_TYPE (ArgTypeList);
+ UserArgType = Info->Parameters[i]->Common.Type;
+
+ if (UserArgType != ArgType)
+ {
+ ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS,
+ "Argument #%u type mismatch - "
+ "Found [%s], ACPI requires [%s]", (i + 1),
+ AcpiUtGetTypeName (UserArgType),
+ AcpiUtGetTypeName (ArgType)));
+ }
+ }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsCheckAcpiCompliance
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * Node - Namespace node for the method/object
+ * Predefined - Pointer to entry in predefined name table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Check that the declared parameter count (in ASL/AML) for a
+ * predefined name is what is expected (matches what is defined in
+ * the ACPI specification for this predefined name.)
+ *
+ ******************************************************************************/
+
+void
+AcpiNsCheckAcpiCompliance (
+ char *Pathname,
+ ACPI_NAMESPACE_NODE *Node,
+ const ACPI_PREDEFINED_INFO *Predefined)
+{
+ UINT32 AmlParamCount;
+ UINT32 RequiredParamCount;
+
+
+ if (!Predefined)
+ {
+ return;
+ }
+
+ /* Get the ACPI-required arg count from the predefined info table */
+
+ RequiredParamCount = METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
+
+ /*
+ * If this object is not a control method, we can check if the ACPI
+ * spec requires that it be a method.
+ */
+ if (Node->Type != ACPI_TYPE_METHOD)
+ {
+ if (RequiredParamCount > 0)
+ {
+ /* Object requires args, must be implemented as a method */
+
+ ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Object (%s) must be a control method with %u arguments",
+ AcpiUtGetTypeName (Node->Type), RequiredParamCount));
+ }
+ else if (!RequiredParamCount && !Predefined->Info.ExpectedBtypes)
+ {
+ /* Object requires no args and no return value, must be a method */
+
+ ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Object (%s) must be a control method "
+ "with no arguments and no return value",
+ AcpiUtGetTypeName (Node->Type)));
+ }
+
+ return;
+ }
+
+ /*
+ * This is a control method.
+ * Check that the ASL/AML-defined parameter count for this method
+ * matches the ACPI-required parameter count
+ *
+ * Some methods are allowed to have a "minimum" number of args (_SCP)
+ * because their definition in ACPI has changed over time.
+ *
+ * Note: These are BIOS errors in the declaration of the object
+ */
+ AmlParamCount = Node->Object->Method.ParamCount;
+
+ if (AmlParamCount < RequiredParamCount)
+ {
+ ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Insufficient arguments - "
+ "ASL declared %u, ACPI requires %u",
+ AmlParamCount, RequiredParamCount));
+ }
+ else if ((AmlParamCount > RequiredParamCount) &&
+ !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
+ {
+ ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Excess arguments - "
+ "ASL declared %u, ACPI requires %u",
+ AmlParamCount, RequiredParamCount));
+ }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsCheckArgumentCount
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * Node - Namespace node for the method/object
+ * UserParamCount - Number of args passed in by the caller
+ * Predefined - Pointer to entry in predefined name table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Check that incoming argument count matches the declared
+ * parameter count (in the ASL/AML) for an object.
+ *
+ ******************************************************************************/
+
+void
+AcpiNsCheckArgumentCount (
+ char *Pathname,
+ ACPI_NAMESPACE_NODE *Node,
+ UINT32 UserParamCount,
+ const ACPI_PREDEFINED_INFO *Predefined)
+{
+ UINT32 AmlParamCount;
+ UINT32 RequiredParamCount;
+
+
+ if (!Predefined)
+ {
+ /*
+ * Not a predefined name. Check the incoming user argument count
+ * against the count that is specified in the method/object.
+ */
+ if (Node->Type != ACPI_TYPE_METHOD)
+ {
+ if (UserParamCount)
+ {
+ ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "%u arguments were passed to a non-method ACPI object (%s)",
+ UserParamCount, AcpiUtGetTypeName (Node->Type)));
+ }
+
+ return;
+ }
+
+ /*
+ * This is a control method. Check the parameter count.
+ * We can only check the incoming argument count against the
+ * argument count declared for the method in the ASL/AML.
+ *
+ * Emit a message if too few or too many arguments have been passed
+ * by the caller.
+ *
+ * Note: Too many arguments will not cause the method to
+ * fail. However, the method will fail if there are too few
+ * arguments and the method attempts to use one of the missing ones.
+ */
+ AmlParamCount = Node->Object->Method.ParamCount;
+
+ if (UserParamCount < AmlParamCount)
+ {
+ ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Insufficient arguments - "
+ "Caller passed %u, method requires %u",
+ UserParamCount, AmlParamCount));
+ }
+ else if (UserParamCount > AmlParamCount)
+ {
+ ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Excess arguments - "
+ "Caller passed %u, method requires %u",
+ UserParamCount, AmlParamCount));
+ }
+
+ return;
+ }
+
+ /*
+ * This is a predefined name. Validate the user-supplied parameter
+ * count against the ACPI specification. We don't validate against
+ * the method itself because what is important here is that the
+ * caller is in conformance with the spec. (The arg count for the
+ * method was checked against the ACPI spec earlier.)
+ *
+ * Some methods are allowed to have a "minimum" number of args (_SCP)
+ * because their definition in ACPI has changed over time.
+ */
+ RequiredParamCount = METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList);
+
+ if (UserParamCount < RequiredParamCount)
+ {
+ ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Insufficient arguments - "
+ "Caller passed %u, ACPI requires %u",
+ UserParamCount, RequiredParamCount));
+ }
+ else if ((UserParamCount > RequiredParamCount) &&
+ !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM))
+ {
+ ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS,
+ "Excess arguments - "
+ "Caller passed %u, ACPI requires %u",
+ UserParamCount, RequiredParamCount));
+ }
+}
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