1895f26a9SJung-uk Kim /****************************************************************************** 2895f26a9SJung-uk Kim * 3895f26a9SJung-uk Kim * Module Name: nsarguments - Validation of args for ACPI predefined methods 4895f26a9SJung-uk Kim * 5895f26a9SJung-uk Kim *****************************************************************************/ 6895f26a9SJung-uk Kim 70d84335fSJung-uk Kim /****************************************************************************** 80d84335fSJung-uk Kim * 90d84335fSJung-uk Kim * 1. Copyright Notice 100d84335fSJung-uk Kim * 11*804fe266SJung-uk Kim * Some or all of this work - Copyright (c) 1999 - 2024, Intel Corp. 12895f26a9SJung-uk Kim * All rights reserved. 13895f26a9SJung-uk Kim * 140d84335fSJung-uk Kim * 2. License 150d84335fSJung-uk Kim * 160d84335fSJung-uk Kim * 2.1. This is your license from Intel Corp. under its intellectual property 170d84335fSJung-uk Kim * rights. You may have additional license terms from the party that provided 180d84335fSJung-uk Kim * you this software, covering your right to use that party's intellectual 190d84335fSJung-uk Kim * property rights. 200d84335fSJung-uk Kim * 210d84335fSJung-uk Kim * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 220d84335fSJung-uk Kim * copy of the source code appearing in this file ("Covered Code") an 230d84335fSJung-uk Kim * irrevocable, perpetual, worldwide license under Intel's copyrights in the 240d84335fSJung-uk Kim * base code distributed originally by Intel ("Original Intel Code") to copy, 250d84335fSJung-uk Kim * make derivatives, distribute, use and display any portion of the Covered 260d84335fSJung-uk Kim * Code in any form, with the right to sublicense such rights; and 270d84335fSJung-uk Kim * 280d84335fSJung-uk Kim * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 290d84335fSJung-uk Kim * license (with the right to sublicense), under only those claims of Intel 300d84335fSJung-uk Kim * patents that are infringed by the Original Intel Code, to make, use, sell, 310d84335fSJung-uk Kim * offer to sell, and import the Covered Code and derivative works thereof 320d84335fSJung-uk Kim * solely to the minimum extent necessary to exercise the above copyright 330d84335fSJung-uk Kim * license, and in no event shall the patent license extend to any additions 340d84335fSJung-uk Kim * to or modifications of the Original Intel Code. No other license or right 350d84335fSJung-uk Kim * is granted directly or by implication, estoppel or otherwise; 360d84335fSJung-uk Kim * 370d84335fSJung-uk Kim * The above copyright and patent license is granted only if the following 380d84335fSJung-uk Kim * conditions are met: 390d84335fSJung-uk Kim * 400d84335fSJung-uk Kim * 3. Conditions 410d84335fSJung-uk Kim * 420d84335fSJung-uk Kim * 3.1. Redistribution of Source with Rights to Further Distribute Source. 430d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered 440d84335fSJung-uk Kim * Code or modification with rights to further distribute source must include 450d84335fSJung-uk Kim * the above Copyright Notice, the above License, this list of Conditions, 460d84335fSJung-uk Kim * and the following Disclaimer and Export Compliance provision. In addition, 470d84335fSJung-uk Kim * Licensee must cause all Covered Code to which Licensee contributes to 480d84335fSJung-uk Kim * contain a file documenting the changes Licensee made to create that Covered 490d84335fSJung-uk Kim * Code and the date of any change. Licensee must include in that file the 500d84335fSJung-uk Kim * documentation of any changes made by any predecessor Licensee. Licensee 510d84335fSJung-uk Kim * must include a prominent statement that the modification is derived, 520d84335fSJung-uk Kim * directly or indirectly, from Original Intel Code. 530d84335fSJung-uk Kim * 540d84335fSJung-uk Kim * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 550d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered 560d84335fSJung-uk Kim * Code or modification without rights to further distribute source must 570d84335fSJung-uk Kim * include the following Disclaimer and Export Compliance provision in the 580d84335fSJung-uk Kim * documentation and/or other materials provided with distribution. In 590d84335fSJung-uk Kim * addition, Licensee may not authorize further sublicense of source of any 600d84335fSJung-uk Kim * portion of the Covered Code, and must include terms to the effect that the 610d84335fSJung-uk Kim * license from Licensee to its licensee is limited to the intellectual 620d84335fSJung-uk Kim * property embodied in the software Licensee provides to its licensee, and 630d84335fSJung-uk Kim * not to intellectual property embodied in modifications its licensee may 640d84335fSJung-uk Kim * make. 650d84335fSJung-uk Kim * 660d84335fSJung-uk Kim * 3.3. Redistribution of Executable. Redistribution in executable form of any 670d84335fSJung-uk Kim * substantial portion of the Covered Code or modification must reproduce the 680d84335fSJung-uk Kim * above Copyright Notice, and the following Disclaimer and Export Compliance 690d84335fSJung-uk Kim * provision in the documentation and/or other materials provided with the 700d84335fSJung-uk Kim * distribution. 710d84335fSJung-uk Kim * 720d84335fSJung-uk Kim * 3.4. Intel retains all right, title, and interest in and to the Original 730d84335fSJung-uk Kim * Intel Code. 740d84335fSJung-uk Kim * 750d84335fSJung-uk Kim * 3.5. Neither the name Intel nor any other trademark owned or controlled by 760d84335fSJung-uk Kim * Intel shall be used in advertising or otherwise to promote the sale, use or 770d84335fSJung-uk Kim * other dealings in products derived from or relating to the Covered Code 780d84335fSJung-uk Kim * without prior written authorization from Intel. 790d84335fSJung-uk Kim * 800d84335fSJung-uk Kim * 4. Disclaimer and Export Compliance 810d84335fSJung-uk Kim * 820d84335fSJung-uk Kim * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 830d84335fSJung-uk Kim * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 840d84335fSJung-uk Kim * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 850d84335fSJung-uk Kim * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 860d84335fSJung-uk Kim * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 870d84335fSJung-uk Kim * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 880d84335fSJung-uk Kim * PARTICULAR PURPOSE. 890d84335fSJung-uk Kim * 900d84335fSJung-uk Kim * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 910d84335fSJung-uk Kim * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 920d84335fSJung-uk Kim * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 930d84335fSJung-uk Kim * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 940d84335fSJung-uk Kim * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 950d84335fSJung-uk Kim * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 960d84335fSJung-uk Kim * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 970d84335fSJung-uk Kim * LIMITED REMEDY. 980d84335fSJung-uk Kim * 990d84335fSJung-uk Kim * 4.3. Licensee shall not export, either directly or indirectly, any of this 1000d84335fSJung-uk Kim * software or system incorporating such software without first obtaining any 1010d84335fSJung-uk Kim * required license or other approval from the U. S. Department of Commerce or 1020d84335fSJung-uk Kim * any other agency or department of the United States Government. In the 1030d84335fSJung-uk Kim * event Licensee exports any such software from the United States or 1040d84335fSJung-uk Kim * re-exports any such software from a foreign destination, Licensee shall 1050d84335fSJung-uk Kim * ensure that the distribution and export/re-export of the software is in 1060d84335fSJung-uk Kim * compliance with all laws, regulations, orders, or other restrictions of the 1070d84335fSJung-uk Kim * U.S. Export Administration Regulations. Licensee agrees that neither it nor 1080d84335fSJung-uk Kim * any of its subsidiaries will export/re-export any technical data, process, 1090d84335fSJung-uk Kim * software, or service, directly or indirectly, to any country for which the 1100d84335fSJung-uk Kim * United States government or any agency thereof requires an export license, 1110d84335fSJung-uk Kim * other governmental approval, or letter of assurance, without first obtaining 1120d84335fSJung-uk Kim * such license, approval or letter. 1130d84335fSJung-uk Kim * 1140d84335fSJung-uk Kim ***************************************************************************** 1150d84335fSJung-uk Kim * 1160d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the 1170d84335fSJung-uk Kim * following license: 1180d84335fSJung-uk Kim * 119895f26a9SJung-uk Kim * Redistribution and use in source and binary forms, with or without 120895f26a9SJung-uk Kim * modification, are permitted provided that the following conditions 121895f26a9SJung-uk Kim * are met: 122895f26a9SJung-uk Kim * 1. Redistributions of source code must retain the above copyright 123895f26a9SJung-uk Kim * notice, this list of conditions, and the following disclaimer, 124895f26a9SJung-uk Kim * without modification. 125895f26a9SJung-uk Kim * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126895f26a9SJung-uk Kim * substantially similar to the "NO WARRANTY" disclaimer below 127895f26a9SJung-uk Kim * ("Disclaimer") and any redistribution must be conditioned upon 128895f26a9SJung-uk Kim * including a substantially similar Disclaimer requirement for further 129895f26a9SJung-uk Kim * binary redistribution. 130895f26a9SJung-uk Kim * 3. Neither the names of the above-listed copyright holders nor the names 131895f26a9SJung-uk Kim * of any contributors may be used to endorse or promote products derived 132895f26a9SJung-uk Kim * from this software without specific prior written permission. 133895f26a9SJung-uk Kim * 1340d84335fSJung-uk Kim * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1350d84335fSJung-uk Kim * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1360d84335fSJung-uk Kim * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1370d84335fSJung-uk Kim * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1380d84335fSJung-uk Kim * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1390d84335fSJung-uk Kim * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 1400d84335fSJung-uk Kim * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 1410d84335fSJung-uk Kim * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 1420d84335fSJung-uk Kim * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 1430d84335fSJung-uk Kim * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 1440d84335fSJung-uk Kim * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 1450d84335fSJung-uk Kim * 1460d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the 147895f26a9SJung-uk Kim * GNU General Public License ("GPL") version 2 as published by the Free 148895f26a9SJung-uk Kim * Software Foundation. 149895f26a9SJung-uk Kim * 1500d84335fSJung-uk Kim *****************************************************************************/ 151895f26a9SJung-uk Kim 152895f26a9SJung-uk Kim #include <contrib/dev/acpica/include/acpi.h> 153895f26a9SJung-uk Kim #include <contrib/dev/acpica/include/accommon.h> 154895f26a9SJung-uk Kim #include <contrib/dev/acpica/include/acnamesp.h> 155895f26a9SJung-uk Kim #include <contrib/dev/acpica/include/acpredef.h> 156895f26a9SJung-uk Kim 157895f26a9SJung-uk Kim 158895f26a9SJung-uk Kim #define _COMPONENT ACPI_NAMESPACE 159895f26a9SJung-uk Kim ACPI_MODULE_NAME ("nsarguments") 160895f26a9SJung-uk Kim 161895f26a9SJung-uk Kim 162895f26a9SJung-uk Kim /******************************************************************************* 163895f26a9SJung-uk Kim * 164895f26a9SJung-uk Kim * FUNCTION: AcpiNsCheckArgumentTypes 165895f26a9SJung-uk Kim * 166895f26a9SJung-uk Kim * PARAMETERS: Info - Method execution information block 167895f26a9SJung-uk Kim * 168895f26a9SJung-uk Kim * RETURN: None 169895f26a9SJung-uk Kim * 170895f26a9SJung-uk Kim * DESCRIPTION: Check the incoming argument count and all argument types 171895f26a9SJung-uk Kim * against the argument type list for a predefined name. 172895f26a9SJung-uk Kim * 173895f26a9SJung-uk Kim ******************************************************************************/ 174895f26a9SJung-uk Kim 175895f26a9SJung-uk Kim void 176895f26a9SJung-uk Kim AcpiNsCheckArgumentTypes ( 177895f26a9SJung-uk Kim ACPI_EVALUATE_INFO *Info) 178895f26a9SJung-uk Kim { 179895f26a9SJung-uk Kim UINT16 ArgTypeList; 180895f26a9SJung-uk Kim UINT8 ArgCount; 181895f26a9SJung-uk Kim UINT8 ArgType; 182895f26a9SJung-uk Kim UINT8 UserArgType; 183895f26a9SJung-uk Kim UINT32 i; 184895f26a9SJung-uk Kim 185895f26a9SJung-uk Kim 1865f9b24faSJung-uk Kim /* 1875f9b24faSJung-uk Kim * If not a predefined name, cannot typecheck args, because 1885f9b24faSJung-uk Kim * we have no idea what argument types are expected. 1895f9b24faSJung-uk Kim * Also, ignore typecheck if warnings/errors if this method 1905f9b24faSJung-uk Kim * has already been evaluated at least once -- in order 1915f9b24faSJung-uk Kim * to suppress repetitive messages. 1925f9b24faSJung-uk Kim */ 1935f9b24faSJung-uk Kim if (!Info->Predefined || (Info->Node->Flags & ANOBJ_EVALUATED)) 194895f26a9SJung-uk Kim { 195895f26a9SJung-uk Kim return; 196895f26a9SJung-uk Kim } 197895f26a9SJung-uk Kim 198895f26a9SJung-uk Kim ArgTypeList = Info->Predefined->Info.ArgumentList; 199895f26a9SJung-uk Kim ArgCount = METHOD_GET_ARG_COUNT (ArgTypeList); 200895f26a9SJung-uk Kim 201895f26a9SJung-uk Kim /* Typecheck all arguments */ 202895f26a9SJung-uk Kim 203895f26a9SJung-uk Kim for (i = 0; ((i < ArgCount) && (i < Info->ParamCount)); i++) 204895f26a9SJung-uk Kim { 205895f26a9SJung-uk Kim ArgType = METHOD_GET_NEXT_TYPE (ArgTypeList); 206895f26a9SJung-uk Kim UserArgType = Info->Parameters[i]->Common.Type; 207895f26a9SJung-uk Kim 208f15e9afbSJung-uk Kim /* No typechecking for ACPI_TYPE_ANY */ 209f15e9afbSJung-uk Kim 210f15e9afbSJung-uk Kim if ((UserArgType != ArgType) && (ArgType != ACPI_TYPE_ANY)) 211895f26a9SJung-uk Kim { 212895f26a9SJung-uk Kim ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, ACPI_WARN_ALWAYS, 213895f26a9SJung-uk Kim "Argument #%u type mismatch - " 214895f26a9SJung-uk Kim "Found [%s], ACPI requires [%s]", (i + 1), 215895f26a9SJung-uk Kim AcpiUtGetTypeName (UserArgType), 216895f26a9SJung-uk Kim AcpiUtGetTypeName (ArgType))); 2175f9b24faSJung-uk Kim 2185f9b24faSJung-uk Kim /* Prevent any additional typechecking for this method */ 2195f9b24faSJung-uk Kim 2205f9b24faSJung-uk Kim Info->Node->Flags |= ANOBJ_EVALUATED; 221895f26a9SJung-uk Kim } 222895f26a9SJung-uk Kim } 223895f26a9SJung-uk Kim } 224895f26a9SJung-uk Kim 225895f26a9SJung-uk Kim 226895f26a9SJung-uk Kim /******************************************************************************* 227895f26a9SJung-uk Kim * 228895f26a9SJung-uk Kim * FUNCTION: AcpiNsCheckAcpiCompliance 229895f26a9SJung-uk Kim * 230895f26a9SJung-uk Kim * PARAMETERS: Pathname - Full pathname to the node (for error msgs) 231895f26a9SJung-uk Kim * Node - Namespace node for the method/object 232895f26a9SJung-uk Kim * Predefined - Pointer to entry in predefined name table 233895f26a9SJung-uk Kim * 234895f26a9SJung-uk Kim * RETURN: None 235895f26a9SJung-uk Kim * 236895f26a9SJung-uk Kim * DESCRIPTION: Check that the declared parameter count (in ASL/AML) for a 237895f26a9SJung-uk Kim * predefined name is what is expected (matches what is defined in 238895f26a9SJung-uk Kim * the ACPI specification for this predefined name.) 239895f26a9SJung-uk Kim * 240895f26a9SJung-uk Kim ******************************************************************************/ 241895f26a9SJung-uk Kim 242895f26a9SJung-uk Kim void 243895f26a9SJung-uk Kim AcpiNsCheckAcpiCompliance ( 244895f26a9SJung-uk Kim char *Pathname, 245895f26a9SJung-uk Kim ACPI_NAMESPACE_NODE *Node, 246895f26a9SJung-uk Kim const ACPI_PREDEFINED_INFO *Predefined) 247895f26a9SJung-uk Kim { 248895f26a9SJung-uk Kim UINT32 AmlParamCount; 249895f26a9SJung-uk Kim UINT32 RequiredParamCount; 250895f26a9SJung-uk Kim 251895f26a9SJung-uk Kim 2525f9b24faSJung-uk Kim if (!Predefined || (Node->Flags & ANOBJ_EVALUATED)) 253895f26a9SJung-uk Kim { 254895f26a9SJung-uk Kim return; 255895f26a9SJung-uk Kim } 256895f26a9SJung-uk Kim 257895f26a9SJung-uk Kim /* Get the ACPI-required arg count from the predefined info table */ 258895f26a9SJung-uk Kim 259f8146b88SJung-uk Kim RequiredParamCount = 260f8146b88SJung-uk Kim METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList); 261895f26a9SJung-uk Kim 262895f26a9SJung-uk Kim /* 263895f26a9SJung-uk Kim * If this object is not a control method, we can check if the ACPI 264895f26a9SJung-uk Kim * spec requires that it be a method. 265895f26a9SJung-uk Kim */ 266895f26a9SJung-uk Kim if (Node->Type != ACPI_TYPE_METHOD) 267895f26a9SJung-uk Kim { 268895f26a9SJung-uk Kim if (RequiredParamCount > 0) 269895f26a9SJung-uk Kim { 270895f26a9SJung-uk Kim /* Object requires args, must be implemented as a method */ 271895f26a9SJung-uk Kim 272895f26a9SJung-uk Kim ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 273895f26a9SJung-uk Kim "Object (%s) must be a control method with %u arguments", 274895f26a9SJung-uk Kim AcpiUtGetTypeName (Node->Type), RequiredParamCount)); 275895f26a9SJung-uk Kim } 276895f26a9SJung-uk Kim else if (!RequiredParamCount && !Predefined->Info.ExpectedBtypes) 277895f26a9SJung-uk Kim { 278895f26a9SJung-uk Kim /* Object requires no args and no return value, must be a method */ 279895f26a9SJung-uk Kim 280895f26a9SJung-uk Kim ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 281895f26a9SJung-uk Kim "Object (%s) must be a control method " 282895f26a9SJung-uk Kim "with no arguments and no return value", 283895f26a9SJung-uk Kim AcpiUtGetTypeName (Node->Type))); 284895f26a9SJung-uk Kim } 285895f26a9SJung-uk Kim 286895f26a9SJung-uk Kim return; 287895f26a9SJung-uk Kim } 288895f26a9SJung-uk Kim 289895f26a9SJung-uk Kim /* 290895f26a9SJung-uk Kim * This is a control method. 291895f26a9SJung-uk Kim * Check that the ASL/AML-defined parameter count for this method 292895f26a9SJung-uk Kim * matches the ACPI-required parameter count 293895f26a9SJung-uk Kim * 294895f26a9SJung-uk Kim * Some methods are allowed to have a "minimum" number of args (_SCP) 295895f26a9SJung-uk Kim * because their definition in ACPI has changed over time. 296895f26a9SJung-uk Kim * 297895f26a9SJung-uk Kim * Note: These are BIOS errors in the declaration of the object 298895f26a9SJung-uk Kim */ 299895f26a9SJung-uk Kim AmlParamCount = Node->Object->Method.ParamCount; 300895f26a9SJung-uk Kim 301895f26a9SJung-uk Kim if (AmlParamCount < RequiredParamCount) 302895f26a9SJung-uk Kim { 303895f26a9SJung-uk Kim ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 304895f26a9SJung-uk Kim "Insufficient arguments - " 305895f26a9SJung-uk Kim "ASL declared %u, ACPI requires %u", 306895f26a9SJung-uk Kim AmlParamCount, RequiredParamCount)); 307895f26a9SJung-uk Kim } 308895f26a9SJung-uk Kim else if ((AmlParamCount > RequiredParamCount) && 309895f26a9SJung-uk Kim !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM)) 310895f26a9SJung-uk Kim { 311895f26a9SJung-uk Kim ACPI_BIOS_ERROR_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 312895f26a9SJung-uk Kim "Excess arguments - " 313895f26a9SJung-uk Kim "ASL declared %u, ACPI requires %u", 314895f26a9SJung-uk Kim AmlParamCount, RequiredParamCount)); 315895f26a9SJung-uk Kim } 316895f26a9SJung-uk Kim } 317895f26a9SJung-uk Kim 318895f26a9SJung-uk Kim 319895f26a9SJung-uk Kim /******************************************************************************* 320895f26a9SJung-uk Kim * 321895f26a9SJung-uk Kim * FUNCTION: AcpiNsCheckArgumentCount 322895f26a9SJung-uk Kim * 323895f26a9SJung-uk Kim * PARAMETERS: Pathname - Full pathname to the node (for error msgs) 324895f26a9SJung-uk Kim * Node - Namespace node for the method/object 325895f26a9SJung-uk Kim * UserParamCount - Number of args passed in by the caller 326895f26a9SJung-uk Kim * Predefined - Pointer to entry in predefined name table 327895f26a9SJung-uk Kim * 328895f26a9SJung-uk Kim * RETURN: None 329895f26a9SJung-uk Kim * 330895f26a9SJung-uk Kim * DESCRIPTION: Check that incoming argument count matches the declared 331895f26a9SJung-uk Kim * parameter count (in the ASL/AML) for an object. 332895f26a9SJung-uk Kim * 333895f26a9SJung-uk Kim ******************************************************************************/ 334895f26a9SJung-uk Kim 335895f26a9SJung-uk Kim void 336895f26a9SJung-uk Kim AcpiNsCheckArgumentCount ( 337895f26a9SJung-uk Kim char *Pathname, 338895f26a9SJung-uk Kim ACPI_NAMESPACE_NODE *Node, 339895f26a9SJung-uk Kim UINT32 UserParamCount, 340895f26a9SJung-uk Kim const ACPI_PREDEFINED_INFO *Predefined) 341895f26a9SJung-uk Kim { 342895f26a9SJung-uk Kim UINT32 AmlParamCount; 343895f26a9SJung-uk Kim UINT32 RequiredParamCount; 344895f26a9SJung-uk Kim 345895f26a9SJung-uk Kim 3465f9b24faSJung-uk Kim if (Node->Flags & ANOBJ_EVALUATED) 3475f9b24faSJung-uk Kim { 3485f9b24faSJung-uk Kim return; 3495f9b24faSJung-uk Kim } 3505f9b24faSJung-uk Kim 351895f26a9SJung-uk Kim if (!Predefined) 352895f26a9SJung-uk Kim { 353895f26a9SJung-uk Kim /* 354895f26a9SJung-uk Kim * Not a predefined name. Check the incoming user argument count 355895f26a9SJung-uk Kim * against the count that is specified in the method/object. 356895f26a9SJung-uk Kim */ 357895f26a9SJung-uk Kim if (Node->Type != ACPI_TYPE_METHOD) 358895f26a9SJung-uk Kim { 359895f26a9SJung-uk Kim if (UserParamCount) 360895f26a9SJung-uk Kim { 361895f26a9SJung-uk Kim ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 362895f26a9SJung-uk Kim "%u arguments were passed to a non-method ACPI object (%s)", 363895f26a9SJung-uk Kim UserParamCount, AcpiUtGetTypeName (Node->Type))); 364895f26a9SJung-uk Kim } 365895f26a9SJung-uk Kim 366895f26a9SJung-uk Kim return; 367895f26a9SJung-uk Kim } 368895f26a9SJung-uk Kim 369895f26a9SJung-uk Kim /* 370895f26a9SJung-uk Kim * This is a control method. Check the parameter count. 371895f26a9SJung-uk Kim * We can only check the incoming argument count against the 372895f26a9SJung-uk Kim * argument count declared for the method in the ASL/AML. 373895f26a9SJung-uk Kim * 374895f26a9SJung-uk Kim * Emit a message if too few or too many arguments have been passed 375895f26a9SJung-uk Kim * by the caller. 376895f26a9SJung-uk Kim * 377895f26a9SJung-uk Kim * Note: Too many arguments will not cause the method to 378895f26a9SJung-uk Kim * fail. However, the method will fail if there are too few 379895f26a9SJung-uk Kim * arguments and the method attempts to use one of the missing ones. 380895f26a9SJung-uk Kim */ 381895f26a9SJung-uk Kim AmlParamCount = Node->Object->Method.ParamCount; 382895f26a9SJung-uk Kim 383895f26a9SJung-uk Kim if (UserParamCount < AmlParamCount) 384895f26a9SJung-uk Kim { 385895f26a9SJung-uk Kim ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 386895f26a9SJung-uk Kim "Insufficient arguments - " 387895f26a9SJung-uk Kim "Caller passed %u, method requires %u", 388895f26a9SJung-uk Kim UserParamCount, AmlParamCount)); 389895f26a9SJung-uk Kim } 390895f26a9SJung-uk Kim else if (UserParamCount > AmlParamCount) 391895f26a9SJung-uk Kim { 392895f26a9SJung-uk Kim ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 393895f26a9SJung-uk Kim "Excess arguments - " 394895f26a9SJung-uk Kim "Caller passed %u, method requires %u", 395895f26a9SJung-uk Kim UserParamCount, AmlParamCount)); 396895f26a9SJung-uk Kim } 397895f26a9SJung-uk Kim 398895f26a9SJung-uk Kim return; 399895f26a9SJung-uk Kim } 400895f26a9SJung-uk Kim 401895f26a9SJung-uk Kim /* 402895f26a9SJung-uk Kim * This is a predefined name. Validate the user-supplied parameter 403895f26a9SJung-uk Kim * count against the ACPI specification. We don't validate against 404895f26a9SJung-uk Kim * the method itself because what is important here is that the 405895f26a9SJung-uk Kim * caller is in conformance with the spec. (The arg count for the 406895f26a9SJung-uk Kim * method was checked against the ACPI spec earlier.) 407895f26a9SJung-uk Kim * 408895f26a9SJung-uk Kim * Some methods are allowed to have a "minimum" number of args (_SCP) 409895f26a9SJung-uk Kim * because their definition in ACPI has changed over time. 410895f26a9SJung-uk Kim */ 411f8146b88SJung-uk Kim RequiredParamCount = 412f8146b88SJung-uk Kim METHOD_GET_ARG_COUNT (Predefined->Info.ArgumentList); 413895f26a9SJung-uk Kim 414895f26a9SJung-uk Kim if (UserParamCount < RequiredParamCount) 415895f26a9SJung-uk Kim { 416895f26a9SJung-uk Kim ACPI_WARN_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 417895f26a9SJung-uk Kim "Insufficient arguments - " 418895f26a9SJung-uk Kim "Caller passed %u, ACPI requires %u", 419895f26a9SJung-uk Kim UserParamCount, RequiredParamCount)); 420895f26a9SJung-uk Kim } 421895f26a9SJung-uk Kim else if ((UserParamCount > RequiredParamCount) && 422895f26a9SJung-uk Kim !(Predefined->Info.ArgumentList & ARG_COUNT_IS_MINIMUM)) 423895f26a9SJung-uk Kim { 424895f26a9SJung-uk Kim ACPI_INFO_PREDEFINED ((AE_INFO, Pathname, ACPI_WARN_ALWAYS, 425895f26a9SJung-uk Kim "Excess arguments - " 426895f26a9SJung-uk Kim "Caller passed %u, ACPI requires %u", 427895f26a9SJung-uk Kim UserParamCount, RequiredParamCount)); 428895f26a9SJung-uk Kim } 429895f26a9SJung-uk Kim } 430