| 0,0 → 1,297 |
|---|
| /****************************************************************************** |
| * |
| * Module Name: oswintbl - Windows OSL for obtaining ACPI tables |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, 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. |
| * |
| *****************************************************************************/ |
| |
| |
| #ifdef WIN32 |
| #pragma warning(disable:4115) /* warning C4115: (caused by rpcasync.h) */ |
| |
| #include <windows.h> |
| #include <winbase.h> |
| |
| #elif WIN64 |
| #include <windowsx.h> |
| #endif |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| |
| #define _COMPONENT ACPI_OS_SERVICES |
| ACPI_MODULE_NAME ("oswintbl") |
| |
| |
| static char KeyBuffer[64]; |
| static char ErrorBuffer[64]; |
| |
| |
| /* Little front-end to win FormatMessage */ |
| |
| char * |
| OsFormatException ( |
| LONG Status) |
| { |
| |
| ErrorBuffer[0] = 0; |
| FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, Status, 0, |
| ErrorBuffer, 64, NULL); |
| |
| return (ErrorBuffer); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: OsGetTable |
| * |
| * PARAMETERS: Signature - ACPI Signature for desired table. must be |
| * a null terminated string. |
| * |
| * RETURN: Pointer to the table. NULL if failure. |
| * |
| * DESCRIPTION: Get an ACPI table from the Windows registry. |
| * |
| *****************************************************************************/ |
| |
| ACPI_TABLE_HEADER * |
| OsGetTable ( |
| char *Signature) |
| { |
| HKEY Handle = NULL; |
| ULONG i; |
| LONG Status; |
| ULONG Type; |
| ULONG NameSize; |
| ULONG DataSize; |
| HKEY SubKey; |
| ACPI_TABLE_HEADER *ReturnTable; |
| |
| |
| /* Get a handle to the table key */ |
| |
| while (1) |
| { |
| ACPI_STRCPY (KeyBuffer, "HARDWARE\\ACPI\\"); |
| ACPI_STRCAT (KeyBuffer, Signature); |
| |
| Status = RegOpenKeyEx (HKEY_LOCAL_MACHINE, KeyBuffer, |
| 0L, KEY_READ, &Handle); |
| |
| if (Status != ERROR_SUCCESS) |
| { |
| /* |
| * Somewhere along the way, MS changed the registry entry for |
| * the FADT from |
| * HARDWARE/ACPI/FACP to |
| * HARDWARE/ACPI/FADT. |
| * |
| * This code allows for both. |
| */ |
| if (ACPI_COMPARE_NAME (Signature, "FACP")) |
| { |
| Signature = "FADT"; |
| } |
| else |
| { |
| AcpiOsPrintf ( |
| "Could not find %s in registry at %s: %s (Status=0x%X)\n", |
| Signature, KeyBuffer, OsFormatException (Status), Status); |
| return (NULL); |
| } |
| } |
| else |
| { |
| break; |
| } |
| } |
| |
| /* Actual data for table is down a couple levels */ |
| |
| for (i = 0; ;) |
| { |
| Status = RegEnumKey (Handle, i, KeyBuffer, sizeof (KeyBuffer)); |
| i += 1; |
| if (Status == ERROR_NO_MORE_ITEMS) |
| { |
| break; |
| } |
| |
| Status = RegOpenKey (Handle, KeyBuffer, &SubKey); |
| if (Status != ERROR_SUCCESS) |
| { |
| AcpiOsPrintf ("Could not open %s entry: %s\n", |
| Signature, OsFormatException (Status)); |
| return (NULL); |
| } |
| |
| RegCloseKey (Handle); |
| Handle = SubKey; |
| i = 0; |
| } |
| |
| /* Find the (binary) table entry */ |
| |
| for (i = 0; ;) |
| { |
| NameSize = sizeof (KeyBuffer); |
| Status = RegEnumValue (Handle, i, KeyBuffer, &NameSize, |
| NULL, &Type, NULL, 0); |
| if (Status != ERROR_SUCCESS) |
| { |
| AcpiOsPrintf ("Could not get %s registry entry: %s\n", |
| Signature, OsFormatException (Status)); |
| return (NULL); |
| } |
| |
| if (Type == REG_BINARY) |
| { |
| break; |
| } |
| i += 1; |
| } |
| |
| /* Get the size of the table */ |
| |
| Status = RegQueryValueEx (Handle, KeyBuffer, NULL, NULL, NULL, &DataSize); |
| if (Status != ERROR_SUCCESS) |
| { |
| AcpiOsPrintf ("Could not read the %s table size: %s\n", |
| Signature, OsFormatException (Status)); |
| return (NULL); |
| } |
| |
| /* Allocate a new buffer for the table */ |
| |
| ReturnTable = AcpiOsAllocate (DataSize); |
| if (!ReturnTable) |
| { |
| goto Cleanup; |
| } |
| |
| /* Get the actual table from the registry */ |
| |
| Status = RegQueryValueEx (Handle, KeyBuffer, NULL, NULL, |
| (UCHAR *) ReturnTable, &DataSize); |
| if (Status != ERROR_SUCCESS) |
| { |
| AcpiOsPrintf ("Could not read %s data: %s\n", |
| Signature, OsFormatException (Status)); |
| AcpiOsFree (ReturnTable); |
| return (NULL); |
| } |
| |
| Cleanup: |
| RegCloseKey (Handle); |
| return (ReturnTable); |
| } |
| |