| /****************************************************************************** |
| * |
| * Module Name: dmrestag - Add tags to resource descriptors (Application-level) |
| * |
| *****************************************************************************/ |
| |
| /* |
| * 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 "acparser.h" |
| #include "acdisasm.h" |
| #include "acnamesp.h" |
| #include "amlcode.h" |
| |
| /* This module used for application-level code only */ |
| |
| #define _COMPONENT ACPI_CA_DISASSEMBLER |
| ACPI_MODULE_NAME ("dmrestag") |
| |
| /* Local prototypes */ |
| |
| static void |
| AcpiDmUpdateResourceName ( |
| ACPI_NAMESPACE_NODE *ResourceNode); |
| |
| static char * |
| AcpiDmSearchTagList ( |
| UINT32 BitIndex, |
| const ACPI_RESOURCE_TAG *TagList); |
| |
| static char * |
| AcpiDmGetResourceTag ( |
| UINT32 BitIndex, |
| AML_RESOURCE *Resource, |
| UINT8 ResourceIndex); |
| |
| static char * |
| AcpiGetTagPathname ( |
| ACPI_PARSE_OBJECT *Op, |
| ACPI_NAMESPACE_NODE *BufferNode, |
| ACPI_NAMESPACE_NODE *ResourceNode, |
| UINT32 BitIndex); |
| |
| static ACPI_NAMESPACE_NODE * |
| AcpiDmGetResourceNode ( |
| ACPI_NAMESPACE_NODE *BufferNode, |
| UINT32 BitIndex); |
| |
| static ACPI_STATUS |
| AcpiDmAddResourceToNamespace ( |
| UINT8 *Aml, |
| UINT32 Length, |
| UINT32 Offset, |
| UINT8 ResourceIndex, |
| void **Context); |
| |
| static void |
| AcpiDmAddResourcesToNamespace ( |
| ACPI_NAMESPACE_NODE *BufferNode, |
| ACPI_PARSE_OBJECT *Op); |
| |
| |
| /****************************************************************************** |
| * |
| * Resource Tag tables |
| * |
| * These are the predefined tags that refer to elements of a resource |
| * descriptor. Each name and offset is defined in the ACPI specification. |
| * |
| * Each table entry contains the bit offset of the field and the associated |
| * name. |
| * |
| ******************************************************************************/ |
| |
| static const ACPI_RESOURCE_TAG AcpiDmIrqTags[] = |
| { |
| {( 1 * 8), ACPI_RESTAG_INTERRUPT}, |
| {( 3 * 8) + 0, ACPI_RESTAG_INTERRUPTTYPE}, |
| {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTLEVEL}, |
| {( 3 * 8) + 4, ACPI_RESTAG_INTERRUPTSHARE}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmDmaTags[] = |
| { |
| {( 1 * 8), ACPI_RESTAG_DMA}, |
| {( 2 * 8) + 0, ACPI_RESTAG_XFERTYPE}, |
| {( 2 * 8) + 2, ACPI_RESTAG_BUSMASTER}, |
| {( 2 * 8) + 5, ACPI_RESTAG_DMATYPE}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmIoTags[] = |
| { |
| {( 1 * 8) + 0, ACPI_RESTAG_DECODE}, |
| {( 2 * 8), ACPI_RESTAG_MINADDR}, |
| {( 4 * 8), ACPI_RESTAG_MAXADDR}, |
| {( 6 * 8), ACPI_RESTAG_ALIGNMENT}, |
| {( 7 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmFixedIoTags[] = |
| { |
| {( 1 * 8), ACPI_RESTAG_BASEADDRESS}, |
| {( 3 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmFixedDmaTags[] = |
| { |
| {( 1 * 8), ACPI_RESTAG_DMA}, |
| {( 3 * 8), ACPI_RESTAG_DMATYPE}, |
| {( 5 * 8), ACPI_RESTAG_XFERTYPE}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmMemory24Tags[] = |
| { |
| {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, |
| {( 4 * 8), ACPI_RESTAG_MINADDR}, |
| {( 6 * 8), ACPI_RESTAG_MAXADDR}, |
| {( 8 * 8), ACPI_RESTAG_ALIGNMENT}, |
| {(10 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmRegisterTags[] = |
| { |
| {( 3 * 8), ACPI_RESTAG_ADDRESSSPACE}, |
| {( 4 * 8), ACPI_RESTAG_REGISTERBITWIDTH}, |
| {( 5 * 8), ACPI_RESTAG_REGISTERBITOFFSET}, |
| {( 6 * 8), ACPI_RESTAG_ACCESSSIZE}, |
| {( 7 * 8), ACPI_RESTAG_ADDRESS}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmMemory32Tags[] = |
| { |
| {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, |
| {( 4 * 8), ACPI_RESTAG_MINADDR}, |
| {( 8 * 8), ACPI_RESTAG_MAXADDR}, |
| {(12 * 8), ACPI_RESTAG_ALIGNMENT}, |
| {(16 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmFixedMemory32Tags[] = |
| { |
| {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, |
| {( 4 * 8), ACPI_RESTAG_BASEADDRESS}, |
| {( 8 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmInterruptTags[] = |
| { |
| {( 3 * 8) + 1, ACPI_RESTAG_INTERRUPTTYPE}, |
| {( 3 * 8) + 2, ACPI_RESTAG_INTERRUPTLEVEL}, |
| {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, |
| {( 5 * 8), ACPI_RESTAG_INTERRUPT}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmAddress16Tags[] = |
| { |
| {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, |
| {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, |
| {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, |
| {( 6 * 8), ACPI_RESTAG_GRANULARITY}, |
| {( 8 * 8), ACPI_RESTAG_MINADDR}, |
| {(10 * 8), ACPI_RESTAG_MAXADDR}, |
| {(12 * 8), ACPI_RESTAG_TRANSLATION}, |
| {(14 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmAddress32Tags[] = |
| { |
| {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, |
| {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, |
| {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, |
| {( 6 * 8), ACPI_RESTAG_GRANULARITY}, |
| {(10 * 8), ACPI_RESTAG_MINADDR}, |
| {(14 * 8), ACPI_RESTAG_MAXADDR}, |
| {(18 * 8), ACPI_RESTAG_TRANSLATION}, |
| {(22 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmAddress64Tags[] = |
| { |
| {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, |
| {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, |
| {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, |
| {( 6 * 8), ACPI_RESTAG_GRANULARITY}, |
| {(14 * 8), ACPI_RESTAG_MINADDR}, |
| {(22 * 8), ACPI_RESTAG_MAXADDR}, |
| {(30 * 8), ACPI_RESTAG_TRANSLATION}, |
| {(38 * 8), ACPI_RESTAG_LENGTH}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmExtendedAddressTags[] = |
| { |
| {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, |
| {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, |
| {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, |
| {( 8 * 8), ACPI_RESTAG_GRANULARITY}, |
| {(16 * 8), ACPI_RESTAG_MINADDR}, |
| {(24 * 8), ACPI_RESTAG_MAXADDR}, |
| {(32 * 8), ACPI_RESTAG_TRANSLATION}, |
| {(40 * 8), ACPI_RESTAG_LENGTH}, |
| {(48 * 8), ACPI_RESTAG_TYPESPECIFICATTRIBUTES}, |
| {0, NULL} |
| }; |
| |
| /* Subtype tables for GPIO descriptors */ |
| |
| static const ACPI_RESOURCE_TAG AcpiDmGpioIntTags[] = |
| { |
| {( 7 * 8) + 0, ACPI_RESTAG_MODE}, |
| {( 7 * 8) + 1, ACPI_RESTAG_POLARITY}, |
| {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, |
| {( 9 * 8), ACPI_RESTAG_PINCONFIG}, |
| {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH}, |
| {(12 * 8), ACPI_RESTAG_DEBOUNCETIME}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmGpioIoTags[] = |
| { |
| {( 7 * 8) + 0, ACPI_RESTAG_IORESTRICTION}, |
| {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, |
| {( 9 * 8), ACPI_RESTAG_PINCONFIG}, |
| {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH}, |
| {(12 * 8), ACPI_RESTAG_DEBOUNCETIME}, |
| {0, NULL} |
| }; |
| |
| /* Subtype tables for SerialBus descriptors */ |
| |
| static const ACPI_RESOURCE_TAG AcpiDmI2cSerialBusTags[] = |
| { |
| {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, |
| {( 7 * 8) + 0, ACPI_RESTAG_MODE}, |
| {(12 * 8), ACPI_RESTAG_SPEED}, |
| {(16 * 8), ACPI_RESTAG_ADDRESS}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmSpiSerialBusTags[] = |
| { |
| {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, |
| {( 7 * 8) + 0, ACPI_RESTAG_MODE}, |
| {( 7 * 8) + 1, ACPI_RESTAG_DEVICEPOLARITY}, |
| {(12 * 8), ACPI_RESTAG_SPEED}, |
| {(16 * 8), ACPI_RESTAG_LENGTH}, |
| {(17 * 8), ACPI_RESTAG_PHASE}, |
| {(18 * 8), ACPI_RESTAG_POLARITY}, |
| {(19 * 8), ACPI_RESTAG_ADDRESS}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmUartSerialBusTags[] = |
| { |
| {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, /* Note: not part of original macro */ |
| {( 7 * 8) + 0, ACPI_RESTAG_FLOWCONTROL}, |
| {( 7 * 8) + 2, ACPI_RESTAG_STOPBITS}, |
| {( 7 * 8) + 4, ACPI_RESTAG_LENGTH}, |
| {( 7 * 8) + 7, ACPI_RESTAG_ENDIANNESS}, |
| {(12 * 8), ACPI_RESTAG_SPEED}, |
| {(16 * 8), ACPI_RESTAG_LENGTH_RX}, |
| {(18 * 8), ACPI_RESTAG_LENGTH_TX}, |
| {(20 * 8), ACPI_RESTAG_PARITY}, |
| {(21 * 8), ACPI_RESTAG_LINE}, |
| {0, NULL} |
| }; |
| |
| /* Subtype tables for Address descriptor type-specific flags */ |
| |
| static const ACPI_RESOURCE_TAG AcpiDmMemoryFlagTags[] = |
| { |
| {( 5 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, |
| {( 5 * 8) + 1, ACPI_RESTAG_MEMTYPE}, |
| {( 5 * 8) + 3, ACPI_RESTAG_MEMATTRIBUTES}, |
| {( 5 * 8) + 5, ACPI_RESTAG_TYPE}, |
| {0, NULL} |
| }; |
| |
| static const ACPI_RESOURCE_TAG AcpiDmIoFlagTags[] = |
| { |
| {( 5 * 8) + 0, ACPI_RESTAG_RANGETYPE}, |
| {( 5 * 8) + 4, ACPI_RESTAG_TYPE}, |
| {( 5 * 8) + 5, ACPI_RESTAG_TRANSTYPE}, |
| {0, NULL} |
| }; |
| |
| |
| /* |
| * Dispatch table used to obtain the correct tag table for a descriptor. |
| * |
| * A NULL in this table means one of three things: |
| * 1) The descriptor ID is reserved and invalid |
| * 2) The descriptor has no tags associated with it |
| * 3) The descriptor has subtypes and a separate table will be used. |
| */ |
| static const ACPI_RESOURCE_TAG *AcpiGbl_ResourceTags[] = |
| { |
| /* Small descriptors */ |
| |
| NULL, /* 0x00, Reserved */ |
| NULL, /* 0x01, Reserved */ |
| NULL, /* 0x02, Reserved */ |
| NULL, /* 0x03, Reserved */ |
| AcpiDmIrqTags, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */ |
| AcpiDmDmaTags, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */ |
| NULL, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ |
| NULL, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ |
| AcpiDmIoTags, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */ |
| AcpiDmFixedIoTags, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */ |
| AcpiDmFixedDmaTags, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */ |
| NULL, /* 0x0B, Reserved */ |
| NULL, /* 0x0C, Reserved */ |
| NULL, /* 0x0D, Reserved */ |
| NULL, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */ |
| NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */ |
| |
| /* Large descriptors */ |
| |
| NULL, /* 0x00, Reserved */ |
| AcpiDmMemory24Tags, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */ |
| AcpiDmRegisterTags, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ |
| NULL, /* 0x03, Reserved */ |
| NULL, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */ |
| AcpiDmMemory32Tags, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */ |
| AcpiDmFixedMemory32Tags, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */ |
| AcpiDmAddress32Tags, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */ |
| AcpiDmAddress16Tags, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */ |
| AcpiDmInterruptTags, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */ |
| AcpiDmAddress64Tags, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */ |
| AcpiDmExtendedAddressTags, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */ |
| NULL, /* 0x0C, ACPI_RESOURCE_NAME_GPIO - Use Subtype table below */ |
| NULL, /* 0x0D, Reserved */ |
| NULL /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use Subtype table below */ |
| }; |
| |
| /* GPIO Subtypes */ |
| |
| static const ACPI_RESOURCE_TAG *AcpiGbl_GpioResourceTags[] = |
| { |
| AcpiDmGpioIntTags, /* 0x00 Interrupt Connection */ |
| AcpiDmGpioIoTags /* 0x01 I/O Connection */ |
| }; |
| |
| /* Serial Bus Subtypes */ |
| |
| static const ACPI_RESOURCE_TAG *AcpiGbl_SerialResourceTags[] = |
| { |
| NULL, /* 0x00 Reserved */ |
| AcpiDmI2cSerialBusTags, /* 0x01 I2C SerialBus */ |
| AcpiDmSpiSerialBusTags, /* 0x02 SPI SerialBus */ |
| AcpiDmUartSerialBusTags /* 0x03 UART SerialBus */ |
| }; |
| |
| /* |
| * Globals used to generate unique resource descriptor names. We use names that |
| * start with underscore and a prefix letter that is not used by other ACPI |
| * reserved names. To this, we append hex 0x00 through 0xFF. These 5 prefixes |
| * allow for 5*256 = 1280 unique names, probably sufficient for any single ASL |
| * file. If this becomes too small, we can use alpha+numerals for a total |
| * of 5*36*36 = 6480. |
| */ |
| #define ACPI_NUM_RES_PREFIX 5 |
| |
| static UINT32 AcpiGbl_NextResourceId = 0; |
| static UINT8 AcpiGbl_NextPrefix = 0; |
| static char AcpiGbl_Prefix[ACPI_NUM_RES_PREFIX] = |
| {'Y','Z','J','K','X'}; |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmCheckResourceReference |
| * |
| * PARAMETERS: Op - Parse Op for the AML opcode |
| * WalkState - Current walk state (with valid scope) |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Convert a reference to a resource descriptor to a symbolic |
| * reference if possible |
| * |
| * NOTE: Bit index is used to transparently handle both resource bit |
| * fields and byte fields. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmCheckResourceReference ( |
| ACPI_PARSE_OBJECT *Op, |
| ACPI_WALK_STATE *WalkState) |
| { |
| ACPI_STATUS Status; |
| ACPI_PARSE_OBJECT *BufferNameOp; |
| ACPI_PARSE_OBJECT *IndexOp; |
| ACPI_NAMESPACE_NODE *BufferNode; |
| ACPI_NAMESPACE_NODE *ResourceNode; |
| const ACPI_OPCODE_INFO *OpInfo; |
| UINT32 BitIndex; |
| |
| |
| /* We are only interested in the CreateXxxxField opcodes */ |
| |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| if (OpInfo->Type != AML_TYPE_CREATE_FIELD) |
| { |
| return; |
| } |
| |
| /* Get the buffer term operand */ |
| |
| BufferNameOp = AcpiPsGetDepthNext (NULL, Op); |
| |
| /* Must be a named buffer, not an arg or local or method call */ |
| |
| if (BufferNameOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP) |
| { |
| return; |
| } |
| |
| /* Get the Index term, must be an integer constant to convert */ |
| |
| IndexOp = BufferNameOp->Common.Next; |
| |
| /* Major cheat: The Node field is also used for the Tag ptr. Clear it now */ |
| |
| IndexOp->Common.Node = NULL; |
| |
| OpInfo = AcpiPsGetOpcodeInfo (IndexOp->Common.AmlOpcode); |
| if (OpInfo->ObjectType != ACPI_TYPE_INTEGER) |
| { |
| return; |
| } |
| |
| /* Get the bit offset of the descriptor within the buffer */ |
| |
| if ((Op->Common.AmlOpcode == AML_CREATE_BIT_FIELD_OP) || |
| (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)) |
| { |
| /* Index operand is a bit offset */ |
| |
| BitIndex = (UINT32) IndexOp->Common.Value.Integer; |
| } |
| else |
| { |
| /* Index operand is a byte offset, convert to bits */ |
| |
| BitIndex = (UINT32) ACPI_MUL_8 (IndexOp->Common.Value.Integer); |
| } |
| |
| /* Lookup the buffer in the namespace */ |
| |
| Status = AcpiNsLookup (WalkState->ScopeInfo, |
| BufferNameOp->Common.Value.String, ACPI_TYPE_BUFFER, |
| ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, |
| &BufferNode); |
| if (ACPI_FAILURE (Status)) |
| { |
| return; |
| } |
| |
| /* Validate object type, we must have a buffer */ |
| |
| if (BufferNode->Type != ACPI_TYPE_BUFFER) |
| { |
| return; |
| } |
| |
| /* Find the resource descriptor node corresponding to the index */ |
| |
| ResourceNode = AcpiDmGetResourceNode (BufferNode, BitIndex); |
| if (!ResourceNode) |
| { |
| return; |
| } |
| |
| /* Translate the Index to a resource tag pathname */ |
| |
| AcpiGetTagPathname (IndexOp, BufferNode, ResourceNode, BitIndex); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmGetResourceNode |
| * |
| * PARAMETERS: BufferNode - Node for the parent buffer |
| * BitIndex - Index into the resource descriptor |
| * |
| * RETURN: Namespace node for the resource descriptor. NULL if not found |
| * |
| * DESCRIPTION: Find a resource descriptor that corresponds to the bit index |
| * |
| ******************************************************************************/ |
| |
| static ACPI_NAMESPACE_NODE * |
| AcpiDmGetResourceNode ( |
| ACPI_NAMESPACE_NODE *BufferNode, |
| UINT32 BitIndex) |
| { |
| ACPI_NAMESPACE_NODE *Node; |
| UINT32 ByteIndex = ACPI_DIV_8 (BitIndex); |
| |
| |
| /* |
| * Child list contains an entry for each resource descriptor. Find |
| * the descriptor that corresponds to the Index. |
| * |
| * If there are no children, this is not a resource template |
| */ |
| Node = BufferNode->Child; |
| while (Node) |
| { |
| /* |
| * Check if the Index falls within this resource. |
| * |
| * Value contains the resource offset, Object contains the resource |
| * length (both in bytes) |
| */ |
| if ((ByteIndex >= Node->Value) && |
| (ByteIndex < (Node->Value + Node->Length))) |
| { |
| return (Node); |
| } |
| |
| Node = Node->Peer; |
| } |
| |
| return (NULL); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiGetTagPathname |
| * |
| * PARAMETERS: BufferNode - Node for the parent buffer |
| * ResourceNode - Node for a resource descriptor |
| * BitIndex - Index into the resource descriptor |
| * |
| * RETURN: Full pathname for a resource tag. NULL if no match. |
| * Path is returned in AML (packed) format. |
| * |
| * DESCRIPTION: Convert a BitIndex into a symbolic resource tag (full pathname) |
| * |
| ******************************************************************************/ |
| |
| static char * |
| AcpiGetTagPathname ( |
| ACPI_PARSE_OBJECT *IndexOp, |
| ACPI_NAMESPACE_NODE *BufferNode, |
| ACPI_NAMESPACE_NODE *ResourceNode, |
| UINT32 BitIndex) |
| { |
| ACPI_STATUS Status; |
| UINT32 ResourceBitIndex; |
| UINT8 ResourceTableIndex; |
| ACPI_SIZE RequiredSize; |
| char *Pathname; |
| AML_RESOURCE *Aml; |
| ACPI_PARSE_OBJECT *Op; |
| char *InternalPath; |
| char *Tag; |
| |
| |
| /* Get the Op that contains the actual buffer data */ |
| |
| Op = BufferNode->Op->Common.Value.Arg; |
| Op = Op->Common.Next; |
| if (!Op) |
| { |
| return (NULL); |
| } |
| |
| /* Get the individual resource descriptor and validate it */ |
| |
| Aml = ACPI_CAST_PTR ( |
| AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]); |
| |
| Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (NULL); |
| } |
| |
| /* Get offset into this descriptor (from offset into entire buffer) */ |
| |
| ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value); |
| |
| /* Get the tag associated with this resource descriptor and offset */ |
| |
| Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex); |
| if (!Tag) |
| { |
| return (NULL); |
| } |
| |
| /* |
| * Now that we know that we have a reference that can be converted to a |
| * symbol, change the name of the resource to a unique name. |
| */ |
| AcpiDmUpdateResourceName (ResourceNode); |
| |
| /* Get the full pathname to the parent buffer */ |
| |
| RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE); |
| if (!RequiredSize) |
| { |
| return (NULL); |
| } |
| |
| Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH); |
| if (!Pathname) |
| { |
| return (NULL); |
| } |
| |
| (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname, |
| RequiredSize, FALSE); |
| |
| /* |
| * Create the full path to the resource and tag by: remove the buffer name, |
| * append the resource descriptor name, append a dot, append the tag name. |
| * |
| * TBD: Always using the full path is a bit brute force, the path can be |
| * often be optimized with carats (if the original buffer namepath is a |
| * single nameseg). This doesn't really matter, because these paths do not |
| * end up in the final compiled AML, it's just an appearance issue for the |
| * disassembled code. |
| */ |
| Pathname[strlen (Pathname) - ACPI_NAME_SIZE] = 0; |
| strncat (Pathname, ResourceNode->Name.Ascii, ACPI_NAME_SIZE); |
| strcat (Pathname, "."); |
| strncat (Pathname, Tag, ACPI_NAME_SIZE); |
| |
| /* Internalize the namepath to AML format */ |
| |
| AcpiNsInternalizeName (Pathname, &InternalPath); |
| ACPI_FREE (Pathname); |
| |
| /* Update the Op with the symbol */ |
| |
| AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP); |
| IndexOp->Common.Value.String = InternalPath; |
| |
| /* We will need the tag later. Cheat by putting it in the Node field */ |
| |
| IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag); |
| return (InternalPath); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmUpdateResourceName |
| * |
| * PARAMETERS: ResourceNode - Node for a resource descriptor |
| * |
| * RETURN: Stores new name in the ResourceNode |
| * |
| * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by |
| * both the disassembly of the descriptor itself and any symbolic |
| * references to the descriptor. Ignored if a unique name has |
| * already been assigned to the resource. |
| * |
| * NOTE: Single threaded, suitable for applications only! |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiDmUpdateResourceName ( |
| ACPI_NAMESPACE_NODE *ResourceNode) |
| { |
| char Name[ACPI_NAME_SIZE]; |
| |
| |
| /* Ignore if a unique name has already been assigned */ |
| |
| if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME) |
| { |
| return; |
| } |
| |
| /* Generate a new ACPI name for the descriptor */ |
| |
| Name[0] = '_'; |
| Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix]; |
| Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4); |
| Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0); |
| |
| /* Update globals for next name */ |
| |
| AcpiGbl_NextResourceId++; |
| if (AcpiGbl_NextResourceId >= 256) |
| { |
| AcpiGbl_NextResourceId = 0; |
| AcpiGbl_NextPrefix++; |
| |
| if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX) |
| { |
| AcpiGbl_NextPrefix = 0; |
| } |
| } |
| |
| /* Change the resource descriptor name */ |
| |
| ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmGetResourceTag |
| * |
| * PARAMETERS: BitIndex - Index into the resource descriptor |
| * Resource - Pointer to the raw resource data |
| * ResourceIndex - Index correspoinding to the resource type |
| * |
| * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match. |
| * |
| * DESCRIPTION: Convert a BitIndex into a symbolic resource tag. |
| * |
| * Note: ResourceIndex should be previously validated and guaranteed to ve |
| * valid. |
| * |
| ******************************************************************************/ |
| |
| static char * |
| AcpiDmGetResourceTag ( |
| UINT32 BitIndex, |
| AML_RESOURCE *Resource, |
| UINT8 ResourceIndex) |
| { |
| const ACPI_RESOURCE_TAG *TagList; |
| char *Tag = NULL; |
| |
| |
| /* Get the tag list for this resource descriptor type */ |
| |
| TagList = AcpiGbl_ResourceTags[ResourceIndex]; |
| |
| /* |
| * Handle descriptors that have multiple subtypes |
| */ |
| switch (Resource->DescriptorType) |
| { |
| case ACPI_RESOURCE_NAME_ADDRESS16: |
| case ACPI_RESOURCE_NAME_ADDRESS32: |
| case ACPI_RESOURCE_NAME_ADDRESS64: |
| case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64: |
| /* |
| * Subtype differentiation is the flags. |
| * Kindof brute force, but just blindly search for an index match |
| */ |
| if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE) |
| { |
| Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags); |
| } |
| else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE) |
| { |
| Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags); |
| } |
| |
| /* If we found a match, all done. Else, drop to normal search below */ |
| |
| if (Tag) |
| { |
| return (Tag); |
| } |
| break; |
| |
| case ACPI_RESOURCE_NAME_GPIO: |
| |
| /* GPIO connection has 2 subtypes: Interrupt and I/O */ |
| |
| if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE) |
| { |
| return (NULL); |
| } |
| |
| TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType]; |
| break; |
| |
| case ACPI_RESOURCE_NAME_SERIAL_BUS: |
| |
| /* SerialBus has 3 subtypes: I2C, SPI, and UART */ |
| |
| if ((Resource->CommonSerialBus.Type == 0) || |
| (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE)) |
| { |
| return (NULL); |
| } |
| |
| TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type]; |
| break; |
| |
| default: |
| |
| break; |
| } |
| |
| /* Search for a match against the BitIndex */ |
| |
| if (TagList) |
| { |
| Tag = AcpiDmSearchTagList (BitIndex, TagList); |
| } |
| |
| return (Tag); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmSearchTagList |
| * |
| * PARAMETERS: BitIndex - Index into the resource descriptor |
| * TagList - List to search |
| * |
| * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found. |
| * |
| * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches |
| * a fixed offset to a symbolic resource tag name. |
| * |
| ******************************************************************************/ |
| |
| static char * |
| AcpiDmSearchTagList ( |
| UINT32 BitIndex, |
| const ACPI_RESOURCE_TAG *TagList) |
| { |
| |
| /* |
| * Walk the null-terminated tag list to find a matching bit offset. |
| * We are looking for an exact match. |
| */ |
| for ( ; TagList->Tag; TagList++) |
| { |
| if (BitIndex == TagList->BitIndex) |
| { |
| return (TagList->Tag); |
| } |
| } |
| |
| /* A matching offset was not found */ |
| |
| return (NULL); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmFindResources |
| * |
| * PARAMETERS: Root - Root of the parse tree |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each |
| * resource descriptor in each template is given a node -- used |
| * for later conversion of resource references to symbolic refs. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmFindResources ( |
| ACPI_PARSE_OBJECT *Root) |
| { |
| ACPI_PARSE_OBJECT *Op = Root; |
| ACPI_PARSE_OBJECT *Parent; |
| |
| |
| /* Walk the entire parse tree */ |
| |
| while (Op) |
| { |
| /* We are interested in Buffer() declarations */ |
| |
| if (Op->Common.AmlOpcode == AML_BUFFER_OP) |
| { |
| /* And only declarations of the form Name (XXXX, Buffer()... ) */ |
| |
| Parent = Op->Common.Parent; |
| if (Parent->Common.AmlOpcode == AML_NAME_OP) |
| { |
| /* |
| * If the buffer is a resource template, add the individual |
| * resource descriptors to the namespace, as children of the |
| * buffer node. |
| */ |
| if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op))) |
| { |
| Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE; |
| AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op); |
| } |
| } |
| } |
| |
| Op = AcpiPsGetDepthNext (Root, Op); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmAddResourcesToNamespace |
| * |
| * PARAMETERS: BufferNode - Node for the parent buffer |
| * Op - Parse op for the buffer |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Add an entire resource template to the namespace. Each |
| * resource descriptor is added as a namespace node. |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiDmAddResourcesToNamespace ( |
| ACPI_NAMESPACE_NODE *BufferNode, |
| ACPI_PARSE_OBJECT *Op) |
| { |
| ACPI_PARSE_OBJECT *NextOp; |
| |
| |
| /* Get to the ByteData list */ |
| |
| NextOp = Op->Common.Value.Arg; |
| NextOp = NextOp->Common.Next; |
| if (!NextOp) |
| { |
| return; |
| } |
| |
| /* Set Node and Op to point to each other */ |
| |
| BufferNode->Op = Op; |
| Op->Common.Node = BufferNode; |
| |
| /* |
| * Insert each resource into the namespace |
| * NextOp contains the Aml pointer and the Aml length |
| */ |
| AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data, |
| (ACPI_SIZE) NextOp->Common.Value.Integer, |
| AcpiDmAddResourceToNamespace, (void **) BufferNode); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmAddResourceToNamespace |
| * |
| * PARAMETERS: ACPI_WALK_AML_CALLBACK |
| * BufferNode - Node for the parent buffer |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Add one resource descriptor to the namespace as a child of the |
| * parent buffer. The same name is used for each descriptor. This |
| * is changed later to a unique name if the resource is actually |
| * referenced by an AML operator. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmAddResourceToNamespace ( |
| UINT8 *Aml, |
| UINT32 Length, |
| UINT32 Offset, |
| UINT8 ResourceIndex, |
| void **Context) |
| { |
| ACPI_STATUS Status; |
| ACPI_GENERIC_STATE ScopeInfo; |
| ACPI_NAMESPACE_NODE *Node; |
| |
| |
| /* TBD: Don't need to add descriptors that have no tags defined? */ |
| |
| /* Add the resource to the namespace, as child of the buffer */ |
| |
| ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context); |
| Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE, |
| ACPI_IMODE_LOAD_PASS2, |
| ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE, |
| NULL, &Node); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (AE_OK); |
| } |
| |
| /* Set the name to the default, changed later if resource is referenced */ |
| |
| Node->Name.Integer = ACPI_DEFAULT_RESNAME; |
| |
| /* Save the offset of the descriptor (within the original buffer) */ |
| |
| Node->Value = Offset; |
| Node->Length = Length; |
| return (AE_OK); |
| } |
