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Diffstat (limited to 'usr/src/cmd/acpi/iasl/aslmaputils.c')
| -rw-r--r-- | usr/src/cmd/acpi/iasl/aslmaputils.c | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/usr/src/cmd/acpi/iasl/aslmaputils.c b/usr/src/cmd/acpi/iasl/aslmaputils.c new file mode 100644 index 0000000000..ebdab7daa7 --- /dev/null +++ b/usr/src/cmd/acpi/iasl/aslmaputils.c @@ -0,0 +1,402 @@ +/****************************************************************************** + * + * Module Name: aslmaputils - Utilities for the resource descriptor/device maps + * + *****************************************************************************/ + +/* + * 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 "acapps.h" +#include "aslcompiler.h" +#include "aslcompiler.y.h" +#include "acinterp.h" +#include "acnamesp.h" +#include "amlcode.h" + +/* This module used for application-level code only */ + +#define _COMPONENT ACPI_COMPILER + ACPI_MODULE_NAME ("aslmaputils") + + +/******************************************************************************* + * + * FUNCTION: MpGetHidFromParseTree + * + * PARAMETERS: HidNode - Node for a _HID object + * + * RETURN: An _HID string value. Automatically converts _HID integers + * to strings. Never NULL. + * + * DESCRIPTION: Extract a _HID value from the parse tree, not the namespace. + * Used when a fully initialized namespace is not available. + * + ******************************************************************************/ + +char * +MpGetHidFromParseTree ( + ACPI_NAMESPACE_NODE *HidNode) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_PARSE_OBJECT *Arg; + char *HidString; + + + Op = HidNode->Op; + + switch (Op->Asl.ParseOpcode) + { + case PARSEOP_NAME: + + Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */ + Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */ + + switch (Arg->Asl.ParseOpcode) + { + case PARSEOP_STRING_LITERAL: + + return (Arg->Asl.Value.String); + + case PARSEOP_INTEGER: + + /* Convert EISAID to a string */ + + HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE); + AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer); + return (HidString); + + default: + + return ("UNKNOWN"); + } + + default: + return ("-No HID-"); + } +} + + +/******************************************************************************* + * + * FUNCTION: MpGetHidValue + * + * PARAMETERS: DeviceNode - Node for parent device + * + * RETURN: An _HID string value. Automatically converts _HID integers + * to strings. Never NULL. + * + * DESCRIPTION: Extract _HID value from within a device scope. Does not + * actually execute a method, just gets the string or integer + * value for the _HID. + * + ******************************************************************************/ + +char * +MpGetHidValue ( + ACPI_NAMESPACE_NODE *DeviceNode) +{ + ACPI_NAMESPACE_NODE *HidNode; + char *HidString; + ACPI_STATUS Status; + + + Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__HID, + ACPI_NS_NO_UPSEARCH, &HidNode); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + + /* If only partial namespace, get the _HID from the parse tree */ + + if (!HidNode->Object) + { + return (MpGetHidFromParseTree (HidNode)); + } + + /* Handle the different _HID flavors */ + + switch (HidNode->Type) + { + case ACPI_TYPE_STRING: + + return (HidNode->Object->String.Pointer); + + case ACPI_TYPE_INTEGER: + + /* Convert EISAID to a string */ + + HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE); + AcpiExEisaIdToString (HidString, HidNode->Object->Integer.Value); + return (HidString); + + case ACPI_TYPE_METHOD: + + return ("-Method-"); + + default: + + FlPrintFile (ASL_FILE_MAP_OUTPUT, "BAD HID TYPE: %u", HidNode->Type); + break; + } + + +ErrorExit: + return ("-No HID-"); +} + + +/******************************************************************************* + * + * FUNCTION: MpGetHidViaNamestring + * + * PARAMETERS: DeviceName - Namepath for parent device + * + * RETURN: _HID string. Never NULL. + * + * DESCRIPTION: Get a _HID value via a device pathname (instead of just simply + * a device node.) + * + ******************************************************************************/ + +char * +MpGetHidViaNamestring ( + char *DeviceName) +{ + ACPI_NAMESPACE_NODE *DeviceNode; + ACPI_STATUS Status; + + + Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH, + &DeviceNode); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + + return (MpGetHidValue (DeviceNode)); + + +ErrorExit: + return ("-No HID-"); +} + + +/******************************************************************************* + * + * FUNCTION: MpGetParentDeviceHid + * + * PARAMETERS: Op - Parse Op to be examined + * TargetNode - Where the field node is returned + * ParentDeviceName - Where the node path is returned + * + * RETURN: _HID string. Never NULL. + * + * DESCRIPTION: Find the parent Device or Scope Op, get the full pathname to + * the parent, and get the _HID associated with the parent. + * + ******************************************************************************/ + +char * +MpGetParentDeviceHid ( + ACPI_PARSE_OBJECT *Op, + ACPI_NAMESPACE_NODE **TargetNode, + char **ParentDeviceName) +{ + ACPI_NAMESPACE_NODE *DeviceNode; + + + /* Find parent Device() or Scope() Op */ + + while (Op && + (Op->Asl.AmlOpcode != AML_DEVICE_OP) && + (Op->Asl.AmlOpcode != AML_SCOPE_OP)) + { + Op = Op->Asl.Parent; + } + + if (!Op) + { + FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Parent_Device "); + goto ErrorExit; + } + + /* Get the full pathname to the device and the _HID */ + + DeviceNode = Op->Asl.Node; + if (!DeviceNode) + { + FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Device_Node "); + goto ErrorExit; + } + + *ParentDeviceName = AcpiNsGetExternalPathname (DeviceNode); + return (MpGetHidValue (DeviceNode)); + + +ErrorExit: + return ("-No HID-"); +} + + +/******************************************************************************* + * + * FUNCTION: MpGetDdnValue + * + * PARAMETERS: DeviceName - Namepath for parent device + * + * RETURN: _DDN description string. NULL on failure. + * + * DESCRIPTION: Execute the _DDN method for the device. + * + ******************************************************************************/ + +char * +MpGetDdnValue ( + char *DeviceName) +{ + ACPI_NAMESPACE_NODE *DeviceNode; + ACPI_NAMESPACE_NODE *DdnNode; + ACPI_STATUS Status; + + + Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH, + &DeviceNode); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + + Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__DDN, ACPI_NS_NO_UPSEARCH, + &DdnNode); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + + if ((DdnNode->Type != ACPI_TYPE_STRING) || + !DdnNode->Object) + { + goto ErrorExit; + } + + return (DdnNode->Object->String.Pointer); + + +ErrorExit: + return (NULL); +} + + +/******************************************************************************* + * + * FUNCTION: MpGetConnectionInfo + * + * PARAMETERS: Op - Parse Op to be examined + * PinIndex - Index into GPIO PinList + * TargetNode - Where the field node is returned + * TargetName - Where the node path is returned + * + * RETURN: A substitute _HID string, indicating that the name is actually + * a field. NULL if the Op does not refer to a Connection. + * + * DESCRIPTION: Get the Field Unit that corresponds to the PinIndex after + * a Connection() invocation. + * + ******************************************************************************/ + +char * +MpGetConnectionInfo ( + ACPI_PARSE_OBJECT *Op, + UINT32 PinIndex, + ACPI_NAMESPACE_NODE **TargetNode, + char **TargetName) +{ + ACPI_PARSE_OBJECT *NextOp; + UINT32 i; + + + /* + * Handle Connection() here. Find the next named FieldUnit. + * Note: we look at the ParseOpcode for the compiler, look + * at the AmlOpcode for the disassembler. + */ + if ((Op->Asl.AmlOpcode == AML_INT_CONNECTION_OP) || + (Op->Asl.ParseOpcode == PARSEOP_CONNECTION)) + { + /* Find the correct field unit definition */ + + NextOp = Op; + for (i = 0; i <= PinIndex;) + { + NextOp = NextOp->Asl.Next; + while (NextOp && + (NextOp->Asl.ParseOpcode != PARSEOP_NAMESEG) && + (NextOp->Asl.AmlOpcode != AML_INT_NAMEDFIELD_OP)) + { + NextOp = NextOp->Asl.Next; + } + + if (!NextOp) + { + return ("UNKNOWN"); + } + + /* Add length of this field to the current pin index */ + + if (NextOp->Asl.ParseOpcode == PARSEOP_NAMESEG) + { + i += (UINT32) NextOp->Asl.Child->Asl.Value.Integer; + } + else /* AML_INT_NAMEDFIELD_OP */ + { + i += (UINT32) NextOp->Asl.Value.Integer; + } + } + + /* Return the node and pathname for the field unit */ + + *TargetNode = NextOp->Asl.Node; + *TargetName = AcpiNsGetExternalPathname (*TargetNode); + return ("-Field-"); + } + + return (NULL); +} |