| /******************************************************************************* |
| * |
| * Module Name: dmresrc.c - Resource Descriptor disassembly |
| * |
| ******************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, 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" |
| |
| |
| #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; |
| |
| |
| if (Op->Asl.AmlOpcode != AML_FIELD_OP) |
| { |
| Info->MappingOp = Op; |
| } |
| |
| 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 (NULL, 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 (Info, 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] ( |
| Info, Aml, ResourceLength, Level); |
| |
| /* Descriptor post-processing */ |
| |
| if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT) |
| { |
| DependentFns = TRUE; |
| Level++; |
| } |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmIsResourceTemplate |
| * |
| * PARAMETERS: WalkState - Current walk info |
| * 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_WALK_STATE *WalkState, |
| 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; |
| if (!NextOp) |
| { |
| AcpiOsPrintf ("NULL byte list in buffer\n"); |
| return (AE_TYPE); |
| } |
| |
| 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 (WalkState, Aml, Length, |
| NULL, ACPI_CAST_INDIRECT_PTR (void, &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); |
| } |
