1 /******************************************************************************
3 * Module Name: aslmaputils - Utilities for the resource descriptor/device maps
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2015, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************/
117 #include "accommon.h"
119 #include "aslcompiler.h"
120 #include "aslcompiler.y.h"
121 #include "acinterp.h"
122 #include "acnamesp.h"
125 /* This module used for application-level code only */
127 #define _COMPONENT ACPI_COMPILER
128 ACPI_MODULE_NAME ("aslmaputils")
131 /*******************************************************************************
133 * FUNCTION: MpGetHidFromParseTree
135 * PARAMETERS: HidNode - Node for a _HID object
137 * RETURN: An _HID string value. Automatically converts _HID integers
138 * to strings. Never NULL.
140 * DESCRIPTION: Extract a _HID value from the parse tree, not the namespace.
141 * Used when a fully initialized namespace is not available.
143 ******************************************************************************/
146 MpGetHidFromParseTree (
147 ACPI_NAMESPACE_NODE *HidNode)
149 ACPI_PARSE_OBJECT *Op;
150 ACPI_PARSE_OBJECT *Arg;
156 switch (Op->Asl.ParseOpcode)
160 Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
161 Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
163 switch (Arg->Asl.ParseOpcode)
165 case PARSEOP_STRING_LITERAL:
167 return (Arg->Asl.Value.String);
169 case PARSEOP_INTEGER:
171 /* Convert EISAID to a string */
173 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
174 AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer);
188 /*******************************************************************************
190 * FUNCTION: MpGetHidValue
192 * PARAMETERS: DeviceNode - Node for parent device
194 * RETURN: An _HID string value. Automatically converts _HID integers
195 * to strings. Never NULL.
197 * DESCRIPTION: Extract _HID value from within a device scope. Does not
198 * actually execute a method, just gets the string or integer
199 * value for the _HID.
201 ******************************************************************************/
205 ACPI_NAMESPACE_NODE *DeviceNode)
207 ACPI_NAMESPACE_NODE *HidNode;
212 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__HID,
213 ACPI_NS_NO_UPSEARCH, &HidNode);
214 if (ACPI_FAILURE (Status))
219 /* If only partial namespace, get the _HID from the parse tree */
221 if (!HidNode->Object)
223 return (MpGetHidFromParseTree (HidNode));
226 /* Handle the different _HID flavors */
228 switch (HidNode->Type)
230 case ACPI_TYPE_STRING:
232 return (HidNode->Object->String.Pointer);
234 case ACPI_TYPE_INTEGER:
236 /* Convert EISAID to a string */
238 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
239 AcpiExEisaIdToString (HidString, HidNode->Object->Integer.Value);
242 case ACPI_TYPE_METHOD:
248 FlPrintFile (ASL_FILE_MAP_OUTPUT, "BAD HID TYPE: %u", HidNode->Type);
258 /*******************************************************************************
260 * FUNCTION: MpGetHidViaNamestring
262 * PARAMETERS: DeviceName - Namepath for parent device
264 * RETURN: _HID string. Never NULL.
266 * DESCRIPTION: Get a _HID value via a device pathname (instead of just simply
269 ******************************************************************************/
272 MpGetHidViaNamestring (
275 ACPI_NAMESPACE_NODE *DeviceNode;
279 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
281 if (ACPI_FAILURE (Status))
286 return (MpGetHidValue (DeviceNode));
294 /*******************************************************************************
296 * FUNCTION: MpGetParentDeviceHid
298 * PARAMETERS: Op - Parse Op to be examined
299 * TargetNode - Where the field node is returned
300 * ParentDeviceName - Where the node path is returned
302 * RETURN: _HID string. Never NULL.
304 * DESCRIPTION: Find the parent Device or Scope Op, get the full pathname to
305 * the parent, and get the _HID associated with the parent.
307 ******************************************************************************/
310 MpGetParentDeviceHid (
311 ACPI_PARSE_OBJECT *Op,
312 ACPI_NAMESPACE_NODE **TargetNode,
313 char **ParentDeviceName)
315 ACPI_NAMESPACE_NODE *DeviceNode;
318 /* Find parent Device() or Scope() Op */
321 (Op->Asl.AmlOpcode != AML_DEVICE_OP) &&
322 (Op->Asl.AmlOpcode != AML_SCOPE_OP))
329 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Parent_Device ");
333 /* Get the full pathname to the device and the _HID */
335 DeviceNode = Op->Asl.Node;
338 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Device_Node ");
342 *ParentDeviceName = AcpiNsGetExternalPathname (DeviceNode);
343 return (MpGetHidValue (DeviceNode));
351 /*******************************************************************************
353 * FUNCTION: MpGetDdnValue
355 * PARAMETERS: DeviceName - Namepath for parent device
357 * RETURN: _DDN description string. NULL on failure.
359 * DESCRIPTION: Execute the _DDN method for the device.
361 ******************************************************************************/
367 ACPI_NAMESPACE_NODE *DeviceNode;
368 ACPI_NAMESPACE_NODE *DdnNode;
372 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
374 if (ACPI_FAILURE (Status))
379 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__DDN, ACPI_NS_NO_UPSEARCH,
381 if (ACPI_FAILURE (Status))
386 if ((DdnNode->Type != ACPI_TYPE_STRING) ||
392 return (DdnNode->Object->String.Pointer);
400 /*******************************************************************************
402 * FUNCTION: MpGetConnectionInfo
404 * PARAMETERS: Op - Parse Op to be examined
405 * PinIndex - Index into GPIO PinList
406 * TargetNode - Where the field node is returned
407 * TargetName - Where the node path is returned
409 * RETURN: A substitute _HID string, indicating that the name is actually
410 * a field. NULL if the Op does not refer to a Connection.
412 * DESCRIPTION: Get the Field Unit that corresponds to the PinIndex after
413 * a Connection() invocation.
415 ******************************************************************************/
418 MpGetConnectionInfo (
419 ACPI_PARSE_OBJECT *Op,
421 ACPI_NAMESPACE_NODE **TargetNode,
424 ACPI_PARSE_OBJECT *NextOp;
429 * Handle Connection() here. Find the next named FieldUnit.
430 * Note: we look at the ParseOpcode for the compiler, look
431 * at the AmlOpcode for the disassembler.
433 if ((Op->Asl.AmlOpcode == AML_INT_CONNECTION_OP) ||
434 (Op->Asl.ParseOpcode == PARSEOP_CONNECTION))
436 /* Find the correct field unit definition */
439 for (i = 0; i <= PinIndex;)
441 NextOp = NextOp->Asl.Next;
443 (NextOp->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
444 (NextOp->Asl.AmlOpcode != AML_INT_NAMEDFIELD_OP))
446 NextOp = NextOp->Asl.Next;
454 /* Add length of this field to the current pin index */
456 if (NextOp->Asl.ParseOpcode == PARSEOP_NAMESEG)
458 i += (UINT32) NextOp->Asl.Child->Asl.Value.Integer;
460 else /* AML_INT_NAMEDFIELD_OP */
462 i += (UINT32) NextOp->Asl.Value.Integer;
466 /* Return the node and pathname for the field unit */
468 *TargetNode = NextOp->Asl.Node;
469 *TargetName = AcpiNsGetExternalPathname (*TargetNode);