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Diffstat (limited to 'sys/contrib/dev/acpica/dmwalk.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dmwalk.c | 1043 |
1 files changed, 1043 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/dmwalk.c b/sys/contrib/dev/acpica/dmwalk.c new file mode 100644 index 0000000..12c74f4 --- /dev/null +++ b/sys/contrib/dev/acpica/dmwalk.c @@ -0,0 +1,1043 @@ +/******************************************************************************* + * + * Module Name: dmwalk - AML disassembly tree walk + * $Revision: 1.33 $ + * + ******************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + *****************************************************************************/ + + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acdisasm.h> +#include <contrib/dev/acpica/acdebug.h> + + +#ifdef ACPI_DISASSEMBLER + +#define _COMPONENT ACPI_CA_DEBUGGER + ACPI_MODULE_NAME ("dmwalk") + + +#define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: " + +/* Local prototypes */ + +static ACPI_STATUS +AcpiDmDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static ACPI_STATUS +AcpiDmAscendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static UINT32 +AcpiDmBlockType ( + ACPI_PARSE_OBJECT *Op); + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDisassemble + * + * PARAMETERS: WalkState - Current state + * Origin - Starting object + * NumOpcodes - Max number of opcodes to be displayed + * + * RETURN: None + * + * DESCRIPTION: Disassemble parser object and its children. This is the + * main entry point of the disassembler. + * + ******************************************************************************/ + +void +AcpiDmDisassemble ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Origin, + UINT32 NumOpcodes) +{ + ACPI_PARSE_OBJECT *Op = Origin; + ACPI_OP_WALK_INFO Info; + + + if (!Op) + { + return; + } + + Info.Flags = 0; + Info.Level = 0; + Info.Count = 0; + Info.WalkState = WalkState; + AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); + return; +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmWalkParseTree + * + * PARAMETERS: Op - Root Op object + * DescendingCallback - Called during tree descent + * AscendingCallback - Called during tree ascent + * Context - To be passed to the callbacks + * + * RETURN: Status from callback(s) + * + * DESCRIPTION: Walk the entire parse tree. + * + ******************************************************************************/ + +void +AcpiDmWalkParseTree ( + ACPI_PARSE_OBJECT *Op, + ASL_WALK_CALLBACK DescendingCallback, + ASL_WALK_CALLBACK AscendingCallback, + void *Context) +{ + BOOLEAN NodePreviouslyVisited; + ACPI_PARSE_OBJECT *StartOp = Op; + ACPI_STATUS Status; + ACPI_PARSE_OBJECT *Next; + ACPI_OP_WALK_INFO *Info = Context; + + + Info->Level = 0; + NodePreviouslyVisited = FALSE; + + while (Op) + { + if (NodePreviouslyVisited) + { + if (AscendingCallback) + { + Status = AscendingCallback (Op, Info->Level, Context); + if (ACPI_FAILURE (Status)) + { + return; + } + } + } + else + { + /* Let the callback process the node */ + + Status = DescendingCallback (Op, Info->Level, Context); + if (ACPI_SUCCESS (Status)) + { + /* Visit children first, once */ + + Next = AcpiPsGetArg (Op, 0); + if (Next) + { + Info->Level++; + Op = Next; + continue; + } + } + else if (Status != AE_CTRL_DEPTH) + { + /* Exit immediately on any error */ + + return; + } + } + + /* Terminate walk at start op */ + + if (Op == StartOp) + { + break; + } + + /* No more children, re-visit this node */ + + if (!NodePreviouslyVisited) + { + NodePreviouslyVisited = TRUE; + continue; + } + + /* No more children, visit peers */ + + if (Op->Common.Next) + { + Op = Op->Common.Next; + NodePreviouslyVisited = FALSE; + } + else + { + /* No peers, re-visit parent */ + + if (Info->Level != 0 ) + { + Info->Level--; + } + + Op = Op->Common.Parent; + NodePreviouslyVisited = TRUE; + } + } + + /* If we get here, the walk completed with no errors */ + + return; +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmBlockType + * + * PARAMETERS: Op - Object to be examined + * + * RETURN: BlockType - not a block, parens, braces, or even both. + * + * DESCRIPTION: Type of block for this op (parens or braces) + * + ******************************************************************************/ + +static UINT32 +AcpiDmBlockType ( + ACPI_PARSE_OBJECT *Op) +{ + const ACPI_OPCODE_INFO *OpInfo; + + + if (!Op) + { + return (BLOCK_NONE); + } + + switch (Op->Common.AmlOpcode) + { + case AML_ELSE_OP: + + return (BLOCK_BRACE); + + case AML_METHOD_OP: + case AML_DEVICE_OP: + case AML_SCOPE_OP: + case AML_PROCESSOR_OP: + case AML_POWER_RES_OP: + case AML_THERMAL_ZONE_OP: + case AML_IF_OP: + case AML_WHILE_OP: + case AML_FIELD_OP: + case AML_INDEX_FIELD_OP: + case AML_BANK_FIELD_OP: + + return (BLOCK_PAREN | BLOCK_BRACE); + + case AML_BUFFER_OP: + + if (Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) + { + return (BLOCK_NONE); + } + + /*lint -fallthrough */ + + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + return (BLOCK_PAREN | BLOCK_BRACE); + + case AML_EVENT_OP: + + return (BLOCK_PAREN); + + default: + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + if (OpInfo->Flags & AML_HAS_ARGS) + { + return (BLOCK_PAREN); + } + + return (BLOCK_NONE); + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmListType + * + * PARAMETERS: Op - Object to be examined + * + * RETURN: ListType - has commas or not. + * + * DESCRIPTION: Type of block for this op (parens or braces) + * + ******************************************************************************/ + +UINT32 +AcpiDmListType ( + ACPI_PARSE_OBJECT *Op) +{ + const ACPI_OPCODE_INFO *OpInfo; + + + if (!Op) + { + return (BLOCK_NONE); + } + + switch (Op->Common.AmlOpcode) + { + + case AML_ELSE_OP: + case AML_METHOD_OP: + case AML_DEVICE_OP: + case AML_SCOPE_OP: + case AML_POWER_RES_OP: + case AML_PROCESSOR_OP: + case AML_THERMAL_ZONE_OP: + case AML_IF_OP: + case AML_WHILE_OP: + case AML_FIELD_OP: + case AML_INDEX_FIELD_OP: + case AML_BANK_FIELD_OP: + + return (BLOCK_NONE); + + case AML_BUFFER_OP: + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + return (BLOCK_COMMA_LIST); + + default: + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + if (OpInfo->Flags & AML_HAS_ARGS) + { + return (BLOCK_COMMA_LIST); + } + + return (BLOCK_NONE); + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDescendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: First visitation of a parse object during tree descent. + * Decode opcode name and begin parameter list(s), if any. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + const ACPI_OPCODE_INFO *OpInfo; + UINT32 Name; + ACPI_PARSE_OBJECT *NextOp; + ACPI_EXTERNAL_LIST *NextExternal; + + + if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) + { + /* Ignore this op -- it was handled elsewhere */ + + return (AE_CTRL_DEPTH); + } + + /* Level 0 is at the Definition Block level */ + + if (Level == 0) + { + /* In verbose mode, print the AML offset, opcode and depth count */ + + if (Info->WalkState) + { + VERBOSE_PRINT ((DB_FULL_OP_INFO, + (Info->WalkState->MethodNode ? + Info->WalkState->MethodNode->Name.Ascii : " "), + Op->Common.AmlOffset, (UINT32) Op->Common.AmlOpcode)); + } + + if (Op->Common.AmlOpcode == AML_SCOPE_OP) + { + /* This is the beginning of the Definition Block */ + + AcpiOsPrintf ("{\n"); + + /* Emit all External() declarations here */ + + if (AcpiGbl_ExternalList) + { + /* + * Walk the list of externals (unresolved references) + * found during parsing + */ + while (AcpiGbl_ExternalList) + { + AcpiOsPrintf (" External (%s", + AcpiGbl_ExternalList->Path); + + /* TBD: should be a lookup table */ + + switch (AcpiGbl_ExternalList->Type) + { + case ACPI_TYPE_DEVICE: + AcpiOsPrintf (", DeviceObj"); + break; + + case ACPI_TYPE_METHOD: + AcpiOsPrintf (", MethodObj"); + break; + + case ACPI_TYPE_INTEGER: + AcpiOsPrintf (", IntObj"); + break; + + default: + break; + } + + if (AcpiGbl_ExternalList->Type == ACPI_TYPE_METHOD) + { + AcpiOsPrintf (") // %d Arguments\n", AcpiGbl_ExternalList->Value); + } + else + { + AcpiOsPrintf (")\n"); + } + + NextExternal = AcpiGbl_ExternalList->Next; + ACPI_FREE (AcpiGbl_ExternalList->Path); + ACPI_FREE (AcpiGbl_ExternalList); + AcpiGbl_ExternalList = NextExternal; + } + AcpiOsPrintf ("\n"); + } + + return (AE_OK); + } + } + else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && + (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && + (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) + { + /* + * This is a first-level element of a term list, + * indent a new line + */ + AcpiDmIndent (Level); + Info->LastLevel = Level; + Info->Count = 0; + } + + /* + * This is an inexpensive mechanism to try and keep lines from getting + * too long. When the limit is hit, start a new line at the previous + * indent plus one. A better but more expensive mechanism would be to + * keep track of the current column. + */ + Info->Count++; + if (Info->Count /*+Info->LastLevel*/ > 10) + { + Info->Count = 0; + AcpiOsPrintf ("\n"); + AcpiDmIndent (Info->LastLevel + 1); + } + + /* Print the opcode name */ + + AcpiDmDisassembleOneOp (NULL, Info, Op); + + if (Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) + { + return (AE_OK); + } + + if ((Op->Common.AmlOpcode == AML_NAME_OP) || + (Op->Common.AmlOpcode == AML_RETURN_OP)) + { + Info->Level--; + } + + /* Start the opcode argument list if necessary */ + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + + if ((OpInfo->Flags & AML_HAS_ARGS) || + (Op->Common.AmlOpcode == AML_EVENT_OP)) + { + /* This opcode has an argument list */ + + if (AcpiDmBlockType (Op) & BLOCK_PAREN) + { + AcpiOsPrintf (" ("); + } + + /* If this is a named opcode, print the associated name value */ + + if (OpInfo->Flags & AML_NAMED) + { + switch (Op->Common.AmlOpcode) + { + case AML_ALIAS_OP: + + NextOp = AcpiPsGetDepthNext (NULL, Op); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + AcpiDmNamestring (NextOp->Common.Value.Name); + AcpiOsPrintf (", "); + + /*lint -fallthrough */ + + default: + + Name = AcpiPsGetName (Op); + if (Op->Named.Path) + { + AcpiDmNamestring ((char *) Op->Named.Path); + } + else + { + AcpiDmDumpName ((char *) &Name); + } + + if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) + { + if (AcpiGbl_DbOpt_verbose) + { + (void) AcpiPsDisplayObjectPathname (NULL, Op); + } + } + break; + } + + switch (Op->Common.AmlOpcode) + { + case AML_METHOD_OP: + + AcpiDmMethodFlags (Op); + AcpiOsPrintf (")"); + break; + + + case AML_NAME_OP: + + /* Check for _HID and related EISAID() */ + + AcpiDmIsEisaId (Op); + AcpiOsPrintf (", "); + break; + + + case AML_REGION_OP: + + AcpiDmRegionFlags (Op); + break; + + + case AML_POWER_RES_OP: + + /* Mark the next two Ops as part of the parameter list */ + + AcpiOsPrintf (", "); + NextOp = AcpiPsGetDepthNext (NULL, Op); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + + NextOp = NextOp->Common.Next; + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + return (AE_OK); + + + case AML_PROCESSOR_OP: + + /* Mark the next three Ops as part of the parameter list */ + + AcpiOsPrintf (", "); + NextOp = AcpiPsGetDepthNext (NULL, Op); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + + NextOp = NextOp->Common.Next; + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + + NextOp = NextOp->Common.Next; + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + return (AE_OK); + + + case AML_MUTEX_OP: + case AML_DATA_REGION_OP: + + AcpiOsPrintf (", "); + return (AE_OK); + + + case AML_EVENT_OP: + case AML_ALIAS_OP: + + return (AE_OK); + + + case AML_SCOPE_OP: + case AML_DEVICE_OP: + case AML_THERMAL_ZONE_OP: + + AcpiOsPrintf (")"); + break; + + + default: + + AcpiOsPrintf ("*** Unhandled named opcode %X\n", Op->Common.AmlOpcode); + break; + } + } + + else switch (Op->Common.AmlOpcode) + { + case AML_FIELD_OP: + case AML_BANK_FIELD_OP: + case AML_INDEX_FIELD_OP: + + Info->BitOffset = 0; + + /* Name of the parent OperationRegion */ + + NextOp = AcpiPsGetDepthNext (NULL, Op); + AcpiDmNamestring (NextOp->Common.Value.Name); + AcpiOsPrintf (", "); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + + switch (Op->Common.AmlOpcode) + { + case AML_BANK_FIELD_OP: + + /* Namestring - Bank Name */ + + NextOp = AcpiPsGetDepthNext (NULL, NextOp); + AcpiDmNamestring (NextOp->Common.Value.Name); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + AcpiOsPrintf (", "); + + /* + * Bank Value. This is a TermArg in the middle of the parameter + * list, must handle it here. + * + * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST + * eliminates newline in the output. + */ + NextOp = NextOp->Common.Next; + + Info->Flags = ACPI_PARSEOP_PARAMLIST; + AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, AcpiDmAscendingOp, Info); + Info->Flags = 0; + Info->Level = Level; + + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + AcpiOsPrintf (", "); + break; + + case AML_INDEX_FIELD_OP: + + /* Namestring - Data Name */ + + NextOp = AcpiPsGetDepthNext (NULL, NextOp); + AcpiDmNamestring (NextOp->Common.Value.Name); + AcpiOsPrintf (", "); + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + break; + + default: + + break; + } + + AcpiDmFieldFlags (NextOp); + break; + + + case AML_BUFFER_OP: + + /* The next op is the size parameter */ + + NextOp = AcpiPsGetDepthNext (NULL, Op); + if (!NextOp) + { + /* Single-step support */ + + return (AE_OK); + } + + if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) + { + /* + * We have a resource list. Don't need to output + * the buffer size Op. Open up a new block + */ + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; + NextOp = NextOp->Common.Next; + AcpiOsPrintf (")\n"); + AcpiDmIndent (Info->Level); + AcpiOsPrintf ("{\n"); + return (AE_OK); + } + + /* Normal Buffer, mark size as in the parameter list */ + + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + return (AE_OK); + + + case AML_VAR_PACKAGE_OP: + case AML_IF_OP: + case AML_WHILE_OP: + + /* The next op is the size or predicate parameter */ + + NextOp = AcpiPsGetDepthNext (NULL, Op); + if (NextOp) + { + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + } + return (AE_OK); + + + case AML_PACKAGE_OP: + + /* The next op is the size or predicate parameter */ + + NextOp = AcpiPsGetDepthNext (NULL, Op); + if (NextOp) + { + NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; + } + return (AE_OK); + + + case AML_MATCH_OP: + + AcpiDmMatchOp (Op); + break; + + + default: + + break; + } + + if (AcpiDmBlockType (Op) & BLOCK_BRACE) + { + AcpiOsPrintf ("\n"); + AcpiDmIndent (Level); + AcpiOsPrintf ("{\n"); + } + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmAscendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Second visitation of a parse object, during ascent of parse + * tree. Close out any parameter lists and complete the opcode. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmAscendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + + + if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) + { + /* Ignore this op -- it was handled elsewhere */ + + return (AE_OK); + } + + if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) + { + /* Indicates the end of the current descriptor block (table) */ + + AcpiOsPrintf ("}\n\n"); + return (AE_OK); + } + + switch (AcpiDmBlockType (Op)) + { + case BLOCK_PAREN: + + /* Completed an op that has arguments, add closing paren */ + + AcpiOsPrintf (")"); + + /* Could be a nested operator, check if comma required */ + + if (!AcpiDmCommaIfListMember (Op)) + { + if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && + (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && + (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) + { + /* + * This is a first-level element of a term list + * start a new line + */ + if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST)) + { + AcpiOsPrintf ("\n"); + } + } + } + break; + + + case BLOCK_BRACE: + case (BLOCK_BRACE | BLOCK_PAREN): + + /* Completed an op that has a term list, add closing brace */ + + if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) + { + AcpiOsPrintf ("}"); + } + else + { + AcpiDmIndent (Level); + AcpiOsPrintf ("}"); + } + + AcpiDmCommaIfListMember (Op); + + if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) + { + AcpiOsPrintf ("\n"); + if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) + { + if ((Op->Common.AmlOpcode == AML_IF_OP) && + (Op->Common.Next) && + (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) + { + break; + } + + if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && + (!Op->Common.Next)) + { + break; + } + AcpiOsPrintf ("\n"); + } + } + break; + + + case BLOCK_NONE: + default: + + /* Could be a nested operator, check if comma required */ + + if (!AcpiDmCommaIfListMember (Op)) + { + if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && + (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && + (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) + { + /* + * This is a first-level element of a term list + * start a new line + */ + AcpiOsPrintf ("\n"); + } + } + else if (Op->Common.Parent) + { + switch (Op->Common.Parent->Common.AmlOpcode) + { + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) + { + AcpiOsPrintf ("\n"); + } + break; + + default: + + break; + } + } + break; + } + + if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) + { + if ((Op->Common.Next) && + (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) + { + return (AE_OK); + } + + /* + * Just completed a parameter node for something like "Buffer (param)". + * Close the paren and open up the term list block with a brace + */ + if (Op->Common.Next) + { + AcpiOsPrintf (")\n"); + AcpiDmIndent (Level - 1); + AcpiOsPrintf ("{\n"); + } + else + { + Op->Common.Parent->Common.DisasmFlags |= + ACPI_PARSEOP_EMPTY_TERMLIST; + AcpiOsPrintf (") {"); + } + } + + if ((Op->Common.AmlOpcode == AML_NAME_OP) || + (Op->Common.AmlOpcode == AML_RETURN_OP)) + { + Info->Level++; + } + return (AE_OK); +} + + +#endif /* ACPI_DISASSEMBLER */ |
