896 lines
24 KiB
C
896 lines
24 KiB
C
/*******************************************************************************
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*
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* Module Name: dmbuffer - AML disassembler, buffer and string support
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2014, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acutils.h>
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#include <contrib/dev/acpica/include/acdisasm.h>
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#include <contrib/dev/acpica/include/acparser.h>
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#include <contrib/dev/acpica/include/amlcode.h>
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#include <contrib/dev/acpica/include/acinterp.h>
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#ifdef ACPI_DISASSEMBLER
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#define _COMPONENT ACPI_CA_DEBUGGER
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ACPI_MODULE_NAME ("dmbuffer")
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/* Local prototypes */
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static void
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AcpiDmUuid (
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ACPI_PARSE_OBJECT *Op);
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static void
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AcpiDmUnicode (
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ACPI_PARSE_OBJECT *Op);
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static void
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AcpiDmGetHardwareIdType (
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ACPI_PARSE_OBJECT *Op);
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static void
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AcpiDmPldBuffer (
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UINT32 Level,
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UINT8 *ByteData,
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UINT32 ByteCount);
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#define ACPI_BUFFER_BYTES_PER_LINE 8
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmDisasmByteList
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*
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* PARAMETERS: Level - Current source code indentation level
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* ByteData - Pointer to the byte list
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* ByteCount - Length of the byte list
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump an AML "ByteList" in Hex format. 8 bytes per line, prefixed
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* with the hex buffer offset.
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*
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******************************************************************************/
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void
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AcpiDmDisasmByteList (
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UINT32 Level,
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UINT8 *ByteData,
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UINT32 ByteCount)
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{
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UINT32 i;
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UINT32 j;
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UINT32 CurrentIndex;
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UINT8 BufChar;
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if (!ByteCount)
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{
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return;
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}
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for (i = 0; i < ByteCount; i += ACPI_BUFFER_BYTES_PER_LINE)
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{
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/* Line indent and offset prefix for each new line */
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AcpiDmIndent (Level);
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if (ByteCount > ACPI_BUFFER_BYTES_PER_LINE)
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{
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AcpiOsPrintf ("/* %04X */ ", i);
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}
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/* Dump the actual hex values */
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for (j = 0; j < ACPI_BUFFER_BYTES_PER_LINE; j++)
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{
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CurrentIndex = i + j;
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if (CurrentIndex >= ByteCount)
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{
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/* Dump fill spaces */
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AcpiOsPrintf (" ");
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continue;
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}
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AcpiOsPrintf (" 0x%2.2X", ByteData[CurrentIndex]);
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/* Add comma if there are more bytes to display */
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if (CurrentIndex < (ByteCount - 1))
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{
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AcpiOsPrintf (",");
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}
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else
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{
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AcpiOsPrintf (" ");
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}
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}
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/* Dump the ASCII equivalents within a comment */
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AcpiOsPrintf (" /* ");
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for (j = 0; j < ACPI_BUFFER_BYTES_PER_LINE; j++)
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{
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CurrentIndex = i + j;
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if (CurrentIndex >= ByteCount)
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{
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break;
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}
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BufChar = ByteData[CurrentIndex];
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if (ACPI_IS_PRINT (BufChar))
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{
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AcpiOsPrintf ("%c", BufChar);
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}
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else
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{
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AcpiOsPrintf (".");
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}
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}
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/* Finished with this line */
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AcpiOsPrintf (" */\n");
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmByteList
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*
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* PARAMETERS: Info - Parse tree walk info
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* Op - Byte list op
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump a buffer byte list, handling the various types of buffers.
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* Buffer type must be already set in the Op DisasmOpcode.
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*
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******************************************************************************/
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void
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AcpiDmByteList (
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ACPI_OP_WALK_INFO *Info,
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *ByteData;
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UINT32 ByteCount;
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ByteData = Op->Named.Data;
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ByteCount = (UINT32) Op->Common.Value.Integer;
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/*
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* The byte list belongs to a buffer, and can be produced by either
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* a ResourceTemplate, Unicode, quoted string, or a plain byte list.
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*/
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switch (Op->Common.Parent->Common.DisasmOpcode)
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{
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case ACPI_DASM_RESOURCE:
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AcpiDmResourceTemplate (Info, Op->Common.Parent, ByteData, ByteCount);
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break;
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case ACPI_DASM_STRING:
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AcpiDmIndent (Info->Level);
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AcpiUtPrintString ((char *) ByteData, ACPI_UINT16_MAX);
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AcpiOsPrintf ("\n");
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break;
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case ACPI_DASM_UUID:
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AcpiDmUuid (Op);
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break;
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case ACPI_DASM_UNICODE:
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AcpiDmUnicode (Op);
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break;
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case ACPI_DASM_PLD_METHOD:
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AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount);
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AcpiDmPldBuffer (Info->Level, ByteData, ByteCount);
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break;
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case ACPI_DASM_BUFFER:
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default:
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/*
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* Not a resource, string, or unicode string.
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* Just dump the buffer
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*/
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AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount);
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break;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmIsUuidBuffer
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*
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* PARAMETERS: Op - Buffer Object to be examined
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*
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* RETURN: TRUE if buffer contains a UUID
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*
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* DESCRIPTION: Determine if a buffer Op contains a UUID
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*
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* To help determine whether the buffer is a UUID versus a raw data buffer,
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* there a are a couple bytes we can look at:
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*
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* xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
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*
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* The variant covered by the UUID specification is indicated by the two most
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* significant bits of N being 1 0 (i.e., the hexadecimal N will always be
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* 8, 9, A, or B).
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*
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* The variant covered by the UUID specification has five versions. For this
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* variant, the four bits of M indicates the UUID version (i.e., the
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* hexadecimal M will be either 1, 2, 3, 4, or 5).
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*
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******************************************************************************/
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BOOLEAN
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AcpiDmIsUuidBuffer (
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *ByteData;
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UINT32 ByteCount;
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ACPI_PARSE_OBJECT *SizeOp;
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ACPI_PARSE_OBJECT *NextOp;
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/* Buffer size is the buffer argument */
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SizeOp = Op->Common.Value.Arg;
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/* Next, the initializer byte list to examine */
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NextOp = SizeOp->Common.Next;
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if (!NextOp)
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{
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return (FALSE);
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}
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/* Extract the byte list info */
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ByteData = NextOp->Named.Data;
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ByteCount = (UINT32) NextOp->Common.Value.Integer;
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/* Byte count must be exactly 16 */
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if (ByteCount != UUID_BUFFER_LENGTH)
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{
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return (FALSE);
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}
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/* Check for valid "M" and "N" values (see function header above) */
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if (((ByteData[7] & 0xF0) == 0x00) || /* M={1,2,3,4,5} */
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((ByteData[7] & 0xF0) > 0x50) ||
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((ByteData[8] & 0xF0) < 0x80) || /* N={8,9,A,B} */
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((ByteData[8] & 0xF0) > 0xB0))
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{
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return (FALSE);
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}
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/* Ignore the Size argument in the disassembly of this buffer op */
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SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
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return (TRUE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmUuid
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*
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* PARAMETERS: Op - Byte List op containing a UUID
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump a buffer containing a UUID as a standard ASCII string.
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*
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* Output Format:
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* In its canonical form, the UUID is represented by a string containing 32
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* lowercase hexadecimal digits, displayed in 5 groups separated by hyphens.
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* The complete form is 8-4-4-4-12 for a total of 36 characters (32
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* alphanumeric characters representing hex digits and 4 hyphens). In bytes,
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* 4-2-2-2-6. Example:
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*
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* ToUUID ("107ededd-d381-4fd7-8da9-08e9a6c79644")
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*
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******************************************************************************/
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static void
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AcpiDmUuid (
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *Data;
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const char *Description;
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Data = ACPI_CAST_PTR (UINT8, Op->Named.Data);
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/* Emit the 36-byte UUID string in the proper format/order */
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AcpiOsPrintf (
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"\"%2.2x%2.2x%2.2x%2.2x-"
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"%2.2x%2.2x-"
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"%2.2x%2.2x-"
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"%2.2x%2.2x-"
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"%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\")",
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Data[3], Data[2], Data[1], Data[0],
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Data[5], Data[4],
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Data[7], Data[6],
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Data[8], Data[9],
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Data[10], Data[11], Data[12], Data[13], Data[14], Data[15]);
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/* Dump the UUID description string if available */
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Description = AcpiAhMatchUuid (Data);
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if (Description)
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{
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AcpiOsPrintf (" /* %s */", Description);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmIsUnicodeBuffer
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*
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* PARAMETERS: Op - Buffer Object to be examined
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*
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* RETURN: TRUE if buffer contains a UNICODE string
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*
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* DESCRIPTION: Determine if a buffer Op contains a Unicode string
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*
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******************************************************************************/
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BOOLEAN
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AcpiDmIsUnicodeBuffer (
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *ByteData;
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UINT32 ByteCount;
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UINT32 WordCount;
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ACPI_PARSE_OBJECT *SizeOp;
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ACPI_PARSE_OBJECT *NextOp;
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UINT32 i;
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/* Buffer size is the buffer argument */
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SizeOp = Op->Common.Value.Arg;
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/* Next, the initializer byte list to examine */
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NextOp = SizeOp->Common.Next;
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if (!NextOp)
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{
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return (FALSE);
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}
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/* Extract the byte list info */
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ByteData = NextOp->Named.Data;
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ByteCount = (UINT32) NextOp->Common.Value.Integer;
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WordCount = ACPI_DIV_2 (ByteCount);
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/*
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* Unicode string must have an even number of bytes and last
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* word must be zero
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*/
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if ((!ByteCount) ||
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(ByteCount < 4) ||
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(ByteCount & 1) ||
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((UINT16 *) (void *) ByteData)[WordCount - 1] != 0)
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{
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return (FALSE);
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}
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/* For each word, 1st byte must be ascii, 2nd byte must be zero */
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for (i = 0; i < (ByteCount - 2); i += 2)
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{
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if ((!ACPI_IS_PRINT (ByteData[i])) ||
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(ByteData[(ACPI_SIZE) i + 1] != 0))
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{
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return (FALSE);
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}
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}
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/* Ignore the Size argument in the disassembly of this buffer op */
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SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
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return (TRUE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmIsStringBuffer
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*
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* PARAMETERS: Op - Buffer Object to be examined
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*
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* RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise
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*
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* DESCRIPTION: Determine if a buffer Op contains a ASCII string
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*
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******************************************************************************/
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BOOLEAN
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AcpiDmIsStringBuffer (
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *ByteData;
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UINT32 ByteCount;
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ACPI_PARSE_OBJECT *SizeOp;
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ACPI_PARSE_OBJECT *NextOp;
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UINT32 i;
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/* Buffer size is the buffer argument */
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SizeOp = Op->Common.Value.Arg;
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/* Next, the initializer byte list to examine */
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NextOp = SizeOp->Common.Next;
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if (!NextOp)
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{
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return (FALSE);
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}
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/* Extract the byte list info */
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ByteData = NextOp->Named.Data;
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ByteCount = (UINT32) NextOp->Common.Value.Integer;
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/* Last byte must be the null terminator */
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if ((!ByteCount) ||
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(ByteCount < 2) ||
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(ByteData[ByteCount-1] != 0))
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{
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return (FALSE);
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}
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for (i = 0; i < (ByteCount - 1); i++)
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{
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/* TBD: allow some escapes (non-ascii chars).
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* they will be handled in the string output routine
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*/
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if (!ACPI_IS_PRINT (ByteData[i]))
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{
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return (FALSE);
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}
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}
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return (TRUE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmIsPldBuffer
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*
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* PARAMETERS: Op - Buffer Object to be examined
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*
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* RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise
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*
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* DESCRIPTION: Determine if a buffer Op contains a _PLD structure
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*
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******************************************************************************/
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BOOLEAN
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AcpiDmIsPldBuffer (
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_NAMESPACE_NODE *Node;
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ACPI_PARSE_OBJECT *ParentOp;
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ParentOp = Op->Common.Parent;
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if (!ParentOp)
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{
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return (FALSE);
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}
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/* Check for form: Name(_PLD, Buffer() {}). Not legal, however */
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if (ParentOp->Common.AmlOpcode == AML_NAME_OP)
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{
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Node = ParentOp->Common.Node;
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if (ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__PLD))
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{
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return (TRUE);
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}
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return (FALSE);
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}
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/* Check for proper form: Name(_PLD, Package() {Buffer() {}}) */
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if (ParentOp->Common.AmlOpcode == AML_PACKAGE_OP)
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{
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ParentOp = ParentOp->Common.Parent;
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if (!ParentOp)
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{
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return (FALSE);
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}
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if (ParentOp->Common.AmlOpcode == AML_NAME_OP)
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{
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Node = ParentOp->Common.Node;
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if (ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__PLD))
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{
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return (TRUE);
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}
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}
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}
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return (FALSE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmPldBuffer
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*
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* PARAMETERS: Level - Current source code indentation level
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* ByteData - Pointer to the byte list
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* ByteCount - Length of the byte list
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump and format the contents of a _PLD buffer object
|
|
*
|
|
******************************************************************************/
|
|
|
|
#define ACPI_PLD_OUTPUT08 "%*.s/* %18s : %-6.2X */\n", ACPI_MUL_4 (Level), " "
|
|
#define ACPI_PLD_OUTPUT16 "%*.s/* %18s : %-6.4X */\n", ACPI_MUL_4 (Level), " "
|
|
#define ACPI_PLD_OUTPUT24 "%*.s/* %18s : %-6.6X */\n", ACPI_MUL_4 (Level), " "
|
|
|
|
static void
|
|
AcpiDmPldBuffer (
|
|
UINT32 Level,
|
|
UINT8 *ByteData,
|
|
UINT32 ByteCount)
|
|
{
|
|
ACPI_PLD_INFO *PldInfo;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* Check for valid byte count */
|
|
|
|
if (ByteCount < ACPI_PLD_REV1_BUFFER_SIZE)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Convert _PLD buffer to local _PLD struct */
|
|
|
|
Status = AcpiDecodePldBuffer (ByteData, ByteCount, &PldInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* First 32-bit dword */
|
|
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Revision", PldInfo->Revision);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "IgnoreColor", PldInfo->IgnoreColor);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT24,"Color", PldInfo->Color);
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|
|
|
/* Second 32-bit dword */
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|
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"Width", PldInfo->Width);
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|
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"Height", PldInfo->Height);
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|
|
|
/* Third 32-bit dword */
|
|
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "UserVisible", PldInfo->UserVisible);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Dock", PldInfo->Dock);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Lid", PldInfo->Lid);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Panel", PldInfo->Panel);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "VerticalPosition", PldInfo->VerticalPosition);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "HorizontalPosition", PldInfo->HorizontalPosition);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Shape", PldInfo->Shape);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupOrientation", PldInfo->GroupOrientation);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupToken", PldInfo->GroupToken);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupPosition", PldInfo->GroupPosition);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Bay", PldInfo->Bay);
|
|
|
|
/* Fourth 32-bit dword */
|
|
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Ejectable", PldInfo->Ejectable);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "OspmEjectRequired", PldInfo->OspmEjectRequired);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "CabinetNumber", PldInfo->CabinetNumber);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "CardCageNumber", PldInfo->CardCageNumber);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Reference", PldInfo->Reference);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Rotation", PldInfo->Rotation);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Order", PldInfo->Order);
|
|
|
|
/* Fifth 32-bit dword */
|
|
|
|
if (ByteCount >= ACPI_PLD_REV1_BUFFER_SIZE)
|
|
{
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"VerticalOffset", PldInfo->VerticalOffset);
|
|
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"HorizontalOffset", PldInfo->HorizontalOffset);
|
|
}
|
|
|
|
ACPI_FREE (PldInfo);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* 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));
|
|
|
|
/* Write every other byte as an ASCII character */
|
|
|
|
AcpiOsPrintf ("\"");
|
|
for (i = 0; i < (WordCount - 1); i++)
|
|
{
|
|
AcpiOsPrintf ("%c", (int) WordData[i]);
|
|
}
|
|
|
|
AcpiOsPrintf ("\")");
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmGetHardwareIdType
|
|
*
|
|
* PARAMETERS: Op - Op to be examined
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Determine the type of the argument to a _HID or _CID
|
|
* 1) Strings are allowed
|
|
* 2) If Integer, determine if it is a valid EISAID
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
AcpiDmGetHardwareIdType (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT32 BigEndianId;
|
|
UINT32 Prefix[3];
|
|
UINT32 i;
|
|
|
|
|
|
switch (Op->Common.AmlOpcode)
|
|
{
|
|
case AML_STRING_OP:
|
|
|
|
/* Mark this string as an _HID/_CID string */
|
|
|
|
Op->Common.DisasmOpcode = ACPI_DASM_HID_STRING;
|
|
break;
|
|
|
|
case AML_WORD_OP:
|
|
case AML_DWORD_OP:
|
|
|
|
/* Determine if a Word/Dword is a valid encoded EISAID */
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
/* Mark this node as convertable to an EISA ID string */
|
|
|
|
Op->Common.DisasmOpcode = ACPI_DASM_EISAID;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmCheckForHardwareId
|
|
*
|
|
* PARAMETERS: Op - Op to be examined
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Determine if a Name() Op is a _HID/_CID.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmCheckForHardwareId (
|
|
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))
|
|
{
|
|
AcpiDmGetHardwareIdType (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)
|
|
{
|
|
AcpiDmGetHardwareIdType (NextOp);
|
|
return;
|
|
}
|
|
|
|
/* _CID with Package: get the package length, check all elements */
|
|
|
|
NextOp = AcpiPsGetDepthNext (NULL, NextOp);
|
|
if (!NextOp)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Don't need to use the length, just walk the peer list */
|
|
|
|
NextOp = NextOp->Common.Next;
|
|
while (NextOp)
|
|
{
|
|
AcpiDmGetHardwareIdType (NextOp);
|
|
NextOp = NextOp->Common.Next;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmDecompressEisaId
|
|
*
|
|
* PARAMETERS: EncodedId - Raw encoded EISA ID.
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Convert an encoded EISAID back to the original ASCII String
|
|
* and emit the correct ASL statement. If the ID is known, emit
|
|
* a description of the ID as a comment.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmDecompressEisaId (
|
|
UINT32 EncodedId)
|
|
{
|
|
char IdBuffer[ACPI_EISAID_STRING_SIZE];
|
|
const AH_DEVICE_ID *Info;
|
|
|
|
|
|
/* Convert EISAID to a string an emit the statement */
|
|
|
|
AcpiExEisaIdToString (IdBuffer, EncodedId);
|
|
AcpiOsPrintf ("EisaId (\"%s\")", IdBuffer);
|
|
|
|
/* If we know about the ID, emit the description */
|
|
|
|
Info = AcpiAhMatchHardwareId (IdBuffer);
|
|
if (Info)
|
|
{
|
|
AcpiOsPrintf (" /* %s */", Info->Description);
|
|
}
|
|
}
|
|
|
|
#endif
|