446 lines
13 KiB
C
446 lines
13 KiB
C
/*******************************************************************************
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*
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* Module Name: dmresrc.c - Resource Descriptor disassembly
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2015, 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/amlcode.h>
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#include <contrib/dev/acpica/include/acdisasm.h>
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#define _COMPONENT ACPI_CA_DEBUGGER
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ACPI_MODULE_NAME ("dbresrc")
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/* Dispatch tables for Resource disassembly functions */
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static ACPI_RESOURCE_HANDLER AcpiGbl_DmResourceDispatch [] =
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{
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/* Small descriptors */
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NULL, /* 0x00, Reserved */
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NULL, /* 0x01, Reserved */
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NULL, /* 0x02, Reserved */
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NULL, /* 0x03, Reserved */
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AcpiDmIrqDescriptor, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */
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AcpiDmDmaDescriptor, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */
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AcpiDmStartDependentDescriptor, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
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AcpiDmEndDependentDescriptor, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
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AcpiDmIoDescriptor, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */
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AcpiDmFixedIoDescriptor, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */
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AcpiDmFixedDmaDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */
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NULL, /* 0x0B, Reserved */
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NULL, /* 0x0C, Reserved */
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NULL, /* 0x0D, Reserved */
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AcpiDmVendorSmallDescriptor, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */
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NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */
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/* Large descriptors */
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NULL, /* 0x00, Reserved */
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AcpiDmMemory24Descriptor, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */
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AcpiDmGenericRegisterDescriptor,/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
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NULL, /* 0x03, Reserved */
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AcpiDmVendorLargeDescriptor, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */
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AcpiDmMemory32Descriptor, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */
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AcpiDmFixedMemory32Descriptor, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */
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AcpiDmDwordDescriptor, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */
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AcpiDmWordDescriptor, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */
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AcpiDmInterruptDescriptor, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */
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AcpiDmQwordDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */
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AcpiDmExtendedDescriptor, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */
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AcpiDmGpioDescriptor, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */
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NULL, /* 0x0D, Reserved */
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AcpiDmSerialBusDescriptor /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS */
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};
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/* Only used for single-threaded applications */
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/* TBD: remove when name is passed as parameter to the dump functions */
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static UINT32 ResourceName;
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmDescriptorName
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*
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* PARAMETERS: None
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*
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* RETURN: None
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*
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* DESCRIPTION: Emit a name for the descriptor if one is present (indicated
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* by the name being changed from the default name.) A name is only
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* emitted if a reference to the descriptor has been made somewhere
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* in the original ASL code.
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*
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******************************************************************************/
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void
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AcpiDmDescriptorName (
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void)
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{
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if (ResourceName == ACPI_DEFAULT_RESNAME)
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{
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return;
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}
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AcpiOsPrintf ("%4.4s", (char *) &ResourceName);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmDumpInteger*
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*
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* PARAMETERS: Value - Value to emit
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* Name - Associated name (emitted as a comment)
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*
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* RETURN: None
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*
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* DESCRIPTION: Integer output helper functions
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*
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******************************************************************************/
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void
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AcpiDmDumpInteger8 (
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UINT8 Value,
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char *Name)
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{
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AcpiOsPrintf ("0x%2.2X, // %s\n", Value, Name);
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}
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void
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AcpiDmDumpInteger16 (
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UINT16 Value,
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char *Name)
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{
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AcpiOsPrintf ("0x%4.4X, // %s\n", Value, Name);
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}
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void
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AcpiDmDumpInteger32 (
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UINT32 Value,
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char *Name)
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{
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AcpiOsPrintf ("0x%8.8X, // %s\n", Value, Name);
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}
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void
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AcpiDmDumpInteger64 (
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UINT64 Value,
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char *Name)
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{
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AcpiOsPrintf ("0x%8.8X%8.8X, // %s\n", ACPI_FORMAT_UINT64 (Value), Name);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmBitList
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*
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* PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt
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* or DMA values
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels.
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*
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******************************************************************************/
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void
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AcpiDmBitList (
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UINT16 Mask)
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{
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UINT32 i;
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BOOLEAN Previous = FALSE;
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/* Open the initializer list */
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AcpiOsPrintf ("{");
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/* Examine each bit */
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for (i = 0; i < 16; i++)
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{
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/* Only interested in bits that are set to 1 */
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if (Mask & 1)
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{
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if (Previous)
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{
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AcpiOsPrintf (",");
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}
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Previous = TRUE;
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AcpiOsPrintf ("%u", i);
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}
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Mask >>= 1;
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}
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/* Close list */
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AcpiOsPrintf ("}\n");
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmResourceTemplate
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*
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* PARAMETERS: Info - Curent parse tree walk info
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* ByteData - Pointer to the byte list data
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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 the contents of a Resource Template containing a set of
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* Resource Descriptors.
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*
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******************************************************************************/
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void
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AcpiDmResourceTemplate (
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ACPI_OP_WALK_INFO *Info,
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ACPI_PARSE_OBJECT *Op,
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UINT8 *ByteData,
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UINT32 ByteCount)
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{
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ACPI_STATUS Status;
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UINT32 CurrentByteOffset;
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UINT8 ResourceType;
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UINT32 ResourceLength;
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void *Aml;
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UINT32 Level;
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BOOLEAN DependentFns = FALSE;
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UINT8 ResourceIndex;
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ACPI_NAMESPACE_NODE *Node;
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if (Op->Asl.AmlOpcode != AML_FIELD_OP)
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{
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Info->MappingOp = Op;
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}
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Level = Info->Level;
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ResourceName = ACPI_DEFAULT_RESNAME;
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Node = Op->Common.Node;
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if (Node)
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{
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Node = Node->Child;
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}
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for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;)
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{
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Aml = &ByteData[CurrentByteOffset];
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/* Get the descriptor type and length */
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ResourceType = AcpiUtGetResourceType (Aml);
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ResourceLength = AcpiUtGetResourceLength (Aml);
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/* Validate the Resource Type and Resource Length */
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Status = AcpiUtValidateResource (NULL, Aml, &ResourceIndex);
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if (ACPI_FAILURE (Status))
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{
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AcpiOsPrintf ("/*** Could not validate Resource, type (%X) %s***/\n",
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ResourceType, AcpiFormatException (Status));
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return;
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}
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/* Point to next descriptor */
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CurrentByteOffset += AcpiUtGetDescriptorLength (Aml);
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/* Descriptor pre-processing */
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switch (ResourceType)
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{
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case ACPI_RESOURCE_NAME_START_DEPENDENT:
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/* Finish a previous StartDependentFns */
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if (DependentFns)
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{
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Level--;
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AcpiDmIndent (Level);
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AcpiOsPrintf ("}\n");
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}
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break;
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case ACPI_RESOURCE_NAME_END_DEPENDENT:
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Level--;
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DependentFns = FALSE;
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break;
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case ACPI_RESOURCE_NAME_END_TAG:
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/* Normal exit, the resource list is finished */
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if (DependentFns)
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{
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/*
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* Close an open StartDependentDescriptor. This indicates a
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* missing EndDependentDescriptor.
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*/
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Level--;
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DependentFns = FALSE;
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/* Go ahead and insert EndDependentFn() */
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AcpiDmEndDependentDescriptor (Info, Aml, ResourceLength, Level);
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AcpiDmIndent (Level);
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AcpiOsPrintf (
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"/*** Disassembler: inserted missing EndDependentFn () ***/\n");
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}
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return;
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default:
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break;
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}
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/* Disassemble the resource structure */
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if (Node)
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{
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ResourceName = Node->Name.Integer;
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Node = Node->Peer;
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}
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AcpiGbl_DmResourceDispatch [ResourceIndex] (
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Info, Aml, ResourceLength, Level);
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/* Descriptor post-processing */
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if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT)
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{
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DependentFns = TRUE;
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Level++;
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}
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmIsResourceTemplate
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*
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* PARAMETERS: WalkState - Current walk info
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* Op - Buffer Op to be examined
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*
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* RETURN: Status. AE_OK if valid template
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*
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* DESCRIPTION: Walk a byte list to determine if it consists of a valid set
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* of resource descriptors. Nothing is output.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDmIsResourceTemplate (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_STATUS Status;
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ACPI_PARSE_OBJECT *NextOp;
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UINT8 *Aml;
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UINT8 *EndAml;
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ACPI_SIZE Length;
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/* This op must be a buffer */
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if (Op->Common.AmlOpcode != AML_BUFFER_OP)
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{
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return (AE_TYPE);
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}
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/* Get the ByteData list and length */
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NextOp = Op->Common.Value.Arg;
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if (!NextOp)
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{
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AcpiOsPrintf ("NULL byte list in buffer\n");
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return (AE_TYPE);
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}
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NextOp = NextOp->Common.Next;
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if (!NextOp)
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{
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return (AE_TYPE);
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}
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Aml = NextOp->Named.Data;
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Length = (ACPI_SIZE) NextOp->Common.Value.Integer;
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/* Walk the byte list, abort on any invalid descriptor type or length */
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Status = AcpiUtWalkAmlResources (WalkState, Aml, Length,
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NULL, ACPI_CAST_INDIRECT_PTR (void, &EndAml));
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if (ACPI_FAILURE (Status))
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{
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return (AE_TYPE);
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}
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/*
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* For the resource template to be valid, one EndTag must appear
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* at the very end of the ByteList, not before. (For proper disassembly
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* of a ResourceTemplate, the buffer must not have any extra data after
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* the EndTag.)
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*/
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if ((Aml + Length - sizeof (AML_RESOURCE_END_TAG)) != EndAml)
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{
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return (AE_AML_NO_RESOURCE_END_TAG);
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}
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/*
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* All resource descriptors are valid, therefore this list appears
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* to be a valid resource template
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*/
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return (AE_OK);
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}
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