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Diffstat (limited to 'source/components/disassembler/dmresrc.c')
| -rw-r--r-- | source/components/disassembler/dmresrc.c | 434 |
1 files changed, 434 insertions, 0 deletions
diff --git a/source/components/disassembler/dmresrc.c b/source/components/disassembler/dmresrc.c new file mode 100644 index 0000000..9c07bf7 --- /dev/null +++ b/source/components/disassembler/dmresrc.c @@ -0,0 +1,434 @@ +/******************************************************************************* + * + * Module Name: dmresrc.c - Resource Descriptor disassembly + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include "acpi.h" +#include "accommon.h" +#include "amlcode.h" +#include "acdisasm.h" + +#ifdef ACPI_DISASSEMBLER + +#define _COMPONENT ACPI_CA_DEBUGGER + ACPI_MODULE_NAME ("dbresrc") + + +/* Dispatch tables for Resource disassembly functions */ + +static ACPI_RESOURCE_HANDLER AcpiGbl_DmResourceDispatch [] = +{ + /* Small descriptors */ + + NULL, /* 0x00, Reserved */ + NULL, /* 0x01, Reserved */ + NULL, /* 0x02, Reserved */ + NULL, /* 0x03, Reserved */ + AcpiDmIrqDescriptor, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */ + AcpiDmDmaDescriptor, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */ + AcpiDmStartDependentDescriptor, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ + AcpiDmEndDependentDescriptor, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ + AcpiDmIoDescriptor, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */ + AcpiDmFixedIoDescriptor, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */ + AcpiDmFixedDmaDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */ + NULL, /* 0x0B, Reserved */ + NULL, /* 0x0C, Reserved */ + NULL, /* 0x0D, Reserved */ + AcpiDmVendorSmallDescriptor, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */ + NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */ + + /* Large descriptors */ + + NULL, /* 0x00, Reserved */ + AcpiDmMemory24Descriptor, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */ + AcpiDmGenericRegisterDescriptor,/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ + NULL, /* 0x03, Reserved */ + AcpiDmVendorLargeDescriptor, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */ + AcpiDmMemory32Descriptor, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */ + AcpiDmFixedMemory32Descriptor, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */ + AcpiDmDwordDescriptor, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */ + AcpiDmWordDescriptor, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */ + AcpiDmInterruptDescriptor, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */ + AcpiDmQwordDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */ + AcpiDmExtendedDescriptor, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */ + AcpiDmGpioDescriptor, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */ + NULL, /* 0x0D, Reserved */ + AcpiDmSerialBusDescriptor /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS */ +}; + + +/* Only used for single-threaded applications */ +/* TBD: remove when name is passed as parameter to the dump functions */ + +static UINT32 ResourceName; + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDescriptorName + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Emit a name for the descriptor if one is present (indicated + * by the name being changed from the default name.) A name is only + * emitted if a reference to the descriptor has been made somewhere + * in the original ASL code. + * + ******************************************************************************/ + +void +AcpiDmDescriptorName ( + void) +{ + + if (ResourceName == ACPI_DEFAULT_RESNAME) + { + return; + } + + AcpiOsPrintf ("%4.4s", (char *) &ResourceName); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDumpInteger* + * + * PARAMETERS: Value - Value to emit + * Name - Associated name (emitted as a comment) + * + * RETURN: None + * + * DESCRIPTION: Integer output helper functions + * + ******************************************************************************/ + +void +AcpiDmDumpInteger8 ( + UINT8 Value, + char *Name) +{ + AcpiOsPrintf ("0x%2.2X, // %s\n", Value, Name); +} + +void +AcpiDmDumpInteger16 ( + UINT16 Value, + char *Name) +{ + AcpiOsPrintf ("0x%4.4X, // %s\n", Value, Name); +} + +void +AcpiDmDumpInteger32 ( + UINT32 Value, + char *Name) +{ + AcpiOsPrintf ("0x%8.8X, // %s\n", Value, Name); +} + +void +AcpiDmDumpInteger64 ( + UINT64 Value, + char *Name) +{ + AcpiOsPrintf ("0x%8.8X%8.8X, // %s\n", ACPI_FORMAT_UINT64 (Value), Name); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmBitList + * + * PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt + * or DMA values + * + * RETURN: None + * + * DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels. + * + ******************************************************************************/ + +void +AcpiDmBitList ( + UINT16 Mask) +{ + UINT32 i; + BOOLEAN Previous = FALSE; + + + /* Open the initializer list */ + + AcpiOsPrintf ("{"); + + /* Examine each bit */ + + for (i = 0; i < 16; i++) + { + /* Only interested in bits that are set to 1 */ + + if (Mask & 1) + { + if (Previous) + { + AcpiOsPrintf (","); + } + Previous = TRUE; + AcpiOsPrintf ("%u", i); + } + + Mask >>= 1; + } + + /* Close list */ + + AcpiOsPrintf ("}\n"); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmResourceTemplate + * + * PARAMETERS: Info - Curent parse tree walk info + * ByteData - Pointer to the byte list data + * ByteCount - Length of the byte list + * + * RETURN: None + * + * DESCRIPTION: Dump the contents of a Resource Template containing a set of + * Resource Descriptors. + * + ******************************************************************************/ + +void +AcpiDmResourceTemplate ( + ACPI_OP_WALK_INFO *Info, + ACPI_PARSE_OBJECT *Op, + UINT8 *ByteData, + UINT32 ByteCount) +{ + ACPI_STATUS Status; + UINT32 CurrentByteOffset; + UINT8 ResourceType; + UINT32 ResourceLength; + void *Aml; + UINT32 Level; + BOOLEAN DependentFns = FALSE; + UINT8 ResourceIndex; + ACPI_NAMESPACE_NODE *Node; + + + Level = Info->Level; + ResourceName = ACPI_DEFAULT_RESNAME; + Node = Op->Common.Node; + if (Node) + { + Node = Node->Child; + } + + for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;) + { + Aml = &ByteData[CurrentByteOffset]; + + /* Get the descriptor type and length */ + + ResourceType = AcpiUtGetResourceType (Aml); + ResourceLength = AcpiUtGetResourceLength (Aml); + + /* Validate the Resource Type and Resource Length */ + + Status = AcpiUtValidateResource (Aml, &ResourceIndex); + if (ACPI_FAILURE (Status)) + { + AcpiOsPrintf ("/*** Could not validate Resource, type (%X) %s***/\n", + ResourceType, AcpiFormatException (Status)); + return; + } + + /* Point to next descriptor */ + + CurrentByteOffset += AcpiUtGetDescriptorLength (Aml); + + /* Descriptor pre-processing */ + + switch (ResourceType) + { + case ACPI_RESOURCE_NAME_START_DEPENDENT: + + /* Finish a previous StartDependentFns */ + + if (DependentFns) + { + Level--; + AcpiDmIndent (Level); + AcpiOsPrintf ("}\n"); + } + break; + + case ACPI_RESOURCE_NAME_END_DEPENDENT: + + Level--; + DependentFns = FALSE; + break; + + case ACPI_RESOURCE_NAME_END_TAG: + + /* Normal exit, the resource list is finished */ + + if (DependentFns) + { + /* + * Close an open StartDependentDescriptor. This indicates a + * missing EndDependentDescriptor. + */ + Level--; + DependentFns = FALSE; + + /* Go ahead and insert EndDependentFn() */ + + AcpiDmEndDependentDescriptor (Aml, ResourceLength, Level); + + AcpiDmIndent (Level); + AcpiOsPrintf ( + "/*** Disassembler: inserted missing EndDependentFn () ***/\n"); + } + return; + + default: + break; + } + + /* Disassemble the resource structure */ + + if (Node) + { + ResourceName = Node->Name.Integer; + Node = Node->Peer; + } + + AcpiGbl_DmResourceDispatch [ResourceIndex] ( + Aml, ResourceLength, Level); + + /* Descriptor post-processing */ + + if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT) + { + DependentFns = TRUE; + Level++; + } + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmIsResourceTemplate + * + * PARAMETERS: Op - Buffer Op to be examined + * + * RETURN: Status. AE_OK if valid template + * + * DESCRIPTION: Walk a byte list to determine if it consists of a valid set + * of resource descriptors. Nothing is output. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDmIsResourceTemplate ( + ACPI_PARSE_OBJECT *Op) +{ + ACPI_STATUS Status; + ACPI_PARSE_OBJECT *NextOp; + UINT8 *Aml; + UINT8 *EndAml; + ACPI_SIZE Length; + + + /* This op must be a buffer */ + + if (Op->Common.AmlOpcode != AML_BUFFER_OP) + { + return (AE_TYPE); + } + + /* Get the ByteData list and length */ + + NextOp = Op->Common.Value.Arg; + NextOp = NextOp->Common.Next; + if (!NextOp) + { + return (AE_TYPE); + } + + Aml = NextOp->Named.Data; + Length = (ACPI_SIZE) NextOp->Common.Value.Integer; + + /* Walk the byte list, abort on any invalid descriptor type or length */ + + Status = AcpiUtWalkAmlResources (Aml, Length, NULL, &EndAml); + if (ACPI_FAILURE (Status)) + { + return (AE_TYPE); + } + + /* + * For the resource template to be valid, one EndTag must appear + * at the very end of the ByteList, not before. (For proper disassembly + * of a ResourceTemplate, the buffer must not have any extra data after + * the EndTag.) + */ + if ((Aml + Length - sizeof (AML_RESOURCE_END_TAG)) != EndAml) + { + return (AE_AML_NO_RESOURCE_END_TAG); + } + + /* + * All resource descriptors are valid, therefore this list appears + * to be a valid resource template + */ + return (AE_OK); +} + +#endif |
