| 0,0 → 1,614 |
|---|
| /******************************************************************************* |
| * |
| * Module Name: dmbuffer - AML disassembler, buffer and string support |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 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. |
| * |
| *****************************************************************************/ |
| |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "acdisasm.h" |
| #include "acparser.h" |
| #include "amlcode.h" |
| |
| |
| #ifdef ACPI_DISASSEMBLER |
| |
| #define _COMPONENT ACPI_CA_DEBUGGER |
| ACPI_MODULE_NAME ("dmbuffer") |
| |
| /* Local prototypes */ |
| |
| static void |
| AcpiDmUnicode ( |
| ACPI_PARSE_OBJECT *Op); |
| |
| static void |
| AcpiDmIsEisaIdElement ( |
| ACPI_PARSE_OBJECT *Op); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmDisasmByteList |
| * |
| * PARAMETERS: Level - Current source code indentation level |
| * ByteData - Pointer to the byte list |
| * ByteCount - Length of the byte list |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Dump an AML "ByteList" in Hex format. 8 bytes per line, prefixed |
| * with the hex buffer offset. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmDisasmByteList ( |
| UINT32 Level, |
| UINT8 *ByteData, |
| UINT32 ByteCount) |
| { |
| UINT32 i; |
| |
| |
| if (!ByteCount) |
| { |
| return; |
| } |
| |
| /* Dump the byte list */ |
| |
| for (i = 0; i < ByteCount; i++) |
| { |
| /* New line every 8 bytes */ |
| |
| if (((i % 8) == 0) && (i < ByteCount)) |
| { |
| if (i > 0) |
| { |
| AcpiOsPrintf ("\n"); |
| } |
| |
| AcpiDmIndent (Level); |
| if (ByteCount > 7) |
| { |
| AcpiOsPrintf ("/* %04X */ ", i); |
| } |
| } |
| |
| AcpiOsPrintf ("0x%2.2X", (UINT32) ByteData[i]); |
| |
| /* Add comma if there are more bytes to display */ |
| |
| if (i < (ByteCount -1)) |
| { |
| AcpiOsPrintf (", "); |
| } |
| } |
| |
| if (Level) |
| { |
| AcpiOsPrintf ("\n"); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmByteList |
| * |
| * PARAMETERS: Info - Parse tree walk info |
| * Op - Byte list op |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Dump a buffer byte list, handling the various types of buffers. |
| * Buffer type must be already set in the Op DisasmOpcode. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmByteList ( |
| ACPI_OP_WALK_INFO *Info, |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT8 *ByteData; |
| UINT32 ByteCount; |
| |
| |
| ByteData = Op->Named.Data; |
| ByteCount = (UINT32) Op->Common.Value.Integer; |
| |
| /* |
| * The byte list belongs to a buffer, and can be produced by either |
| * a ResourceTemplate, Unicode, quoted string, or a plain byte list. |
| */ |
| switch (Op->Common.Parent->Common.DisasmOpcode) |
| { |
| case ACPI_DASM_RESOURCE: |
| |
| AcpiDmResourceTemplate (Info, Op->Common.Parent, ByteData, ByteCount); |
| break; |
| |
| case ACPI_DASM_STRING: |
| |
| AcpiDmIndent (Info->Level); |
| AcpiUtPrintString ((char *) ByteData, ACPI_UINT8_MAX); |
| AcpiOsPrintf ("\n"); |
| break; |
| |
| case ACPI_DASM_UNICODE: |
| |
| AcpiDmUnicode (Op); |
| break; |
| |
| case ACPI_DASM_BUFFER: |
| default: |
| |
| /* |
| * Not a resource, string, or unicode string. |
| * Just dump the buffer |
| */ |
| AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount); |
| break; |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmIsUnicodeBuffer |
| * |
| * PARAMETERS: Op - Buffer Object to be examined |
| * |
| * RETURN: TRUE if buffer contains a UNICODE string |
| * |
| * DESCRIPTION: Determine if a buffer Op contains a Unicode string |
| * |
| ******************************************************************************/ |
| |
| BOOLEAN |
| AcpiDmIsUnicodeBuffer ( |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT8 *ByteData; |
| UINT32 ByteCount; |
| UINT32 WordCount; |
| ACPI_PARSE_OBJECT *SizeOp; |
| ACPI_PARSE_OBJECT *NextOp; |
| UINT32 i; |
| |
| |
| /* Buffer size is the buffer argument */ |
| |
| SizeOp = Op->Common.Value.Arg; |
| |
| /* Next, the initializer byte list to examine */ |
| |
| NextOp = SizeOp->Common.Next; |
| if (!NextOp) |
| { |
| return (FALSE); |
| } |
| |
| /* Extract the byte list info */ |
| |
| ByteData = NextOp->Named.Data; |
| ByteCount = (UINT32) NextOp->Common.Value.Integer; |
| WordCount = ACPI_DIV_2 (ByteCount); |
| |
| /* |
| * Unicode string must have an even number of bytes and last |
| * word must be zero |
| */ |
| if ((!ByteCount) || |
| (ByteCount < 4) || |
| (ByteCount & 1) || |
| ((UINT16 *) (void *) ByteData)[WordCount - 1] != 0) |
| { |
| return (FALSE); |
| } |
| |
| /* For each word, 1st byte must be ascii, 2nd byte must be zero */ |
| |
| for (i = 0; i < (ByteCount - 2); i += 2) |
| { |
| if ((!ACPI_IS_PRINT (ByteData[i])) || |
| (ByteData[(ACPI_SIZE) i + 1] != 0)) |
| { |
| return (FALSE); |
| } |
| } |
| |
| /* Ignore the Size argument in the disassembly of this buffer op */ |
| |
| SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; |
| return (TRUE); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmIsStringBuffer |
| * |
| * PARAMETERS: Op - Buffer Object to be examined |
| * |
| * RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise |
| * |
| * DESCRIPTION: Determine if a buffer Op contains a ASCII string |
| * |
| ******************************************************************************/ |
| |
| BOOLEAN |
| AcpiDmIsStringBuffer ( |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT8 *ByteData; |
| UINT32 ByteCount; |
| ACPI_PARSE_OBJECT *SizeOp; |
| ACPI_PARSE_OBJECT *NextOp; |
| UINT32 i; |
| |
| |
| /* Buffer size is the buffer argument */ |
| |
| SizeOp = Op->Common.Value.Arg; |
| |
| /* Next, the initializer byte list to examine */ |
| |
| NextOp = SizeOp->Common.Next; |
| if (!NextOp) |
| { |
| return (FALSE); |
| } |
| |
| /* Extract the byte list info */ |
| |
| ByteData = NextOp->Named.Data; |
| ByteCount = (UINT32) NextOp->Common.Value.Integer; |
| |
| /* Last byte must be the null terminator */ |
| |
| if ((!ByteCount) || |
| (ByteCount < 2) || |
| (ByteData[ByteCount-1] != 0)) |
| { |
| return (FALSE); |
| } |
| |
| for (i = 0; i < (ByteCount - 1); i++) |
| { |
| /* TBD: allow some escapes (non-ascii chars). |
| * they will be handled in the string output routine |
| */ |
| |
| if (!ACPI_IS_PRINT (ByteData[i])) |
| { |
| return (FALSE); |
| } |
| } |
| |
| return (TRUE); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmUnicode |
| * |
| * PARAMETERS: Op - Byte List op containing Unicode string |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Dump Unicode string as a standard ASCII string. (Remove |
| * the extra zero bytes). |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiDmUnicode ( |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT16 *WordData; |
| UINT32 WordCount; |
| UINT32 i; |
| |
| |
| /* Extract the buffer info as a WORD buffer */ |
| |
| WordData = ACPI_CAST_PTR (UINT16, Op->Named.Data); |
| WordCount = ACPI_DIV_2 (((UINT32) Op->Common.Value.Integer)); |
| |
| |
| AcpiOsPrintf ("\""); |
| |
| /* Write every other byte as an ASCII character */ |
| |
| for (i = 0; i < (WordCount - 1); i++) |
| { |
| AcpiOsPrintf ("%c", (int) WordData[i]); |
| } |
| |
| AcpiOsPrintf ("\")"); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmIsEisaIdElement |
| * |
| * PARAMETERS: Op - Op to be examined |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Determine if an Op (argument to _HID or _CID) can be converted |
| * to an EISA ID. |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiDmIsEisaIdElement ( |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT32 BigEndianId; |
| UINT32 Prefix[3]; |
| UINT32 i; |
| |
| |
| /* The parameter must be either a word or a dword */ |
| |
| if ((Op->Common.AmlOpcode != AML_DWORD_OP) && |
| (Op->Common.AmlOpcode != AML_WORD_OP)) |
| { |
| return; |
| } |
| |
| /* Swap from little-endian to big-endian to simplify conversion */ |
| |
| BigEndianId = AcpiUtDwordByteSwap ((UINT32) Op->Common.Value.Integer); |
| |
| /* Create the 3 leading ASCII letters */ |
| |
| Prefix[0] = ((BigEndianId >> 26) & 0x1F) + 0x40; |
| Prefix[1] = ((BigEndianId >> 21) & 0x1F) + 0x40; |
| Prefix[2] = ((BigEndianId >> 16) & 0x1F) + 0x40; |
| |
| /* Verify that all 3 are ascii and alpha */ |
| |
| for (i = 0; i < 3; i++) |
| { |
| if (!ACPI_IS_ASCII (Prefix[i]) || |
| !ACPI_IS_ALPHA (Prefix[i])) |
| { |
| return; |
| } |
| } |
| |
| /* OK - mark this node as convertable to an EISA ID */ |
| |
| Op->Common.DisasmOpcode = ACPI_DASM_EISAID; |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmIsEisaId |
| * |
| * PARAMETERS: Op - Op to be examined |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Determine if a Name() Op can be converted to an EisaId. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmIsEisaId ( |
| ACPI_PARSE_OBJECT *Op) |
| { |
| UINT32 Name; |
| ACPI_PARSE_OBJECT *NextOp; |
| |
| |
| /* Get the NameSegment */ |
| |
| Name = AcpiPsGetName (Op); |
| if (!Name) |
| { |
| return; |
| } |
| |
| NextOp = AcpiPsGetDepthNext (NULL, Op); |
| if (!NextOp) |
| { |
| return; |
| } |
| |
| /* Check for _HID - has one argument */ |
| |
| if (ACPI_COMPARE_NAME (&Name, METHOD_NAME__HID)) |
| { |
| AcpiDmIsEisaIdElement (NextOp); |
| return; |
| } |
| |
| /* Exit if not _CID */ |
| |
| if (!ACPI_COMPARE_NAME (&Name, METHOD_NAME__CID)) |
| { |
| return; |
| } |
| |
| /* _CID can contain a single argument or a package */ |
| |
| if (NextOp->Common.AmlOpcode != AML_PACKAGE_OP) |
| { |
| AcpiDmIsEisaIdElement (NextOp); |
| return; |
| } |
| |
| /* _CID with Package: get the package length */ |
| |
| NextOp = AcpiPsGetDepthNext (NULL, NextOp); |
| |
| /* Don't need to use the length, just walk the peer list */ |
| |
| NextOp = NextOp->Common.Next; |
| while (NextOp) |
| { |
| AcpiDmIsEisaIdElement (NextOp); |
| NextOp = NextOp->Common.Next; |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmEisaId |
| * |
| * PARAMETERS: EncodedId - Raw encoded EISA ID. |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Convert an encoded EISAID back to the original ASCII String. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmEisaId ( |
| UINT32 EncodedId) |
| { |
| UINT32 BigEndianId; |
| |
| |
| /* Swap from little-endian to big-endian to simplify conversion */ |
| |
| BigEndianId = AcpiUtDwordByteSwap (EncodedId); |
| |
| |
| /* Split to form "AAANNNN" string */ |
| |
| AcpiOsPrintf ("EisaId (\"%c%c%c%4.4X\")", |
| |
| /* Three Alpha characters (AAA), 5 bits each */ |
| |
| (int) ((BigEndianId >> 26) & 0x1F) + 0x40, |
| (int) ((BigEndianId >> 21) & 0x1F) + 0x40, |
| (int) ((BigEndianId >> 16) & 0x1F) + 0x40, |
| |
| /* Numeric part (NNNN) is simply the lower 16 bits */ |
| |
| (UINT32) (BigEndianId & 0xFFFF)); |
| } |
| |
| #endif |