1bc36eafdSMike Gerdts /******************************************************************************
2bc36eafdSMike Gerdts *
3bc36eafdSMike Gerdts * Module Name: dtsubtable.c - handling of subtables within ACPI tables
4bc36eafdSMike Gerdts *
5bc36eafdSMike Gerdts *****************************************************************************/
6bc36eafdSMike Gerdts
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12bc36eafdSMike Gerdts * All rights reserved.
13bc36eafdSMike Gerdts *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
119bc36eafdSMike Gerdts * Redistribution and use in source and binary forms, with or without
120bc36eafdSMike Gerdts * modification, are permitted provided that the following conditions
121bc36eafdSMike Gerdts * are met:
122bc36eafdSMike Gerdts * 1. Redistributions of source code must retain the above copyright
123bc36eafdSMike Gerdts * notice, this list of conditions, and the following disclaimer,
124bc36eafdSMike Gerdts * without modification.
125bc36eafdSMike Gerdts * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126bc36eafdSMike Gerdts * substantially similar to the "NO WARRANTY" disclaimer below
127bc36eafdSMike Gerdts * ("Disclaimer") and any redistribution must be conditioned upon
128bc36eafdSMike Gerdts * including a substantially similar Disclaimer requirement for further
129bc36eafdSMike Gerdts * binary redistribution.
130bc36eafdSMike Gerdts * 3. Neither the names of the above-listed copyright holders nor the names
131bc36eafdSMike Gerdts * of any contributors may be used to endorse or promote products derived
132bc36eafdSMike Gerdts * from this software without specific prior written permission.
133bc36eafdSMike Gerdts *
134bc36eafdSMike Gerdts * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135bc36eafdSMike Gerdts * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137bc36eafdSMike Gerdts * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
148*35786f68SRobert Mustacchi * Software Foundation.
149*35786f68SRobert Mustacchi *
150*35786f68SRobert Mustacchi *****************************************************************************/
151bc36eafdSMike Gerdts
152bc36eafdSMike Gerdts #include "aslcompiler.h"
153bc36eafdSMike Gerdts
154bc36eafdSMike Gerdts #define _COMPONENT DT_COMPILER
155bc36eafdSMike Gerdts ACPI_MODULE_NAME ("dtsubtable")
156bc36eafdSMike Gerdts
157bc36eafdSMike Gerdts
158bc36eafdSMike Gerdts /******************************************************************************
159bc36eafdSMike Gerdts *
160bc36eafdSMike Gerdts * FUNCTION: DtCreateSubtable
161bc36eafdSMike Gerdts *
162bc36eafdSMike Gerdts * PARAMETERS: Buffer - Input buffer
163bc36eafdSMike Gerdts * Length - Buffer length
164bc36eafdSMike Gerdts * RetSubtable - Returned newly created subtable
165bc36eafdSMike Gerdts *
166bc36eafdSMike Gerdts * RETURN: None
167bc36eafdSMike Gerdts *
168bc36eafdSMike Gerdts * DESCRIPTION: Create a subtable that is not listed with ACPI_DMTABLE_INFO
169bc36eafdSMike Gerdts * For example, FACS has 24 bytes reserved at the end
170bc36eafdSMike Gerdts * and it's not listed at AcpiDmTableInfoFacs
171bc36eafdSMike Gerdts *
172bc36eafdSMike Gerdts *****************************************************************************/
173bc36eafdSMike Gerdts
174bc36eafdSMike Gerdts void
DtCreateSubtable(UINT8 * Buffer,UINT32 Length,DT_SUBTABLE ** RetSubtable)175bc36eafdSMike Gerdts DtCreateSubtable (
176bc36eafdSMike Gerdts UINT8 *Buffer,
177bc36eafdSMike Gerdts UINT32 Length,
178bc36eafdSMike Gerdts DT_SUBTABLE **RetSubtable)
179bc36eafdSMike Gerdts {
180bc36eafdSMike Gerdts DT_SUBTABLE *Subtable;
181bc36eafdSMike Gerdts char *String;
182bc36eafdSMike Gerdts
183bc36eafdSMike Gerdts
184bc36eafdSMike Gerdts Subtable = UtSubtableCacheCalloc ();
185bc36eafdSMike Gerdts
186bc36eafdSMike Gerdts /* Create a new buffer for the subtable data */
187bc36eafdSMike Gerdts
188*35786f68SRobert Mustacchi String = UtLocalCacheCalloc (Length);
189bc36eafdSMike Gerdts Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
190bc36eafdSMike Gerdts memcpy (Subtable->Buffer, Buffer, Length);
191bc36eafdSMike Gerdts
192bc36eafdSMike Gerdts Subtable->Length = Length;
193bc36eafdSMike Gerdts Subtable->TotalLength = Length;
194bc36eafdSMike Gerdts
195bc36eafdSMike Gerdts *RetSubtable = Subtable;
196bc36eafdSMike Gerdts }
197bc36eafdSMike Gerdts
198bc36eafdSMike Gerdts
199bc36eafdSMike Gerdts /******************************************************************************
200bc36eafdSMike Gerdts *
201bc36eafdSMike Gerdts * FUNCTION: DtInsertSubtable
202bc36eafdSMike Gerdts *
203bc36eafdSMike Gerdts * PARAMETERS: ParentTable - The Parent of the new subtable
204bc36eafdSMike Gerdts * Subtable - The new subtable to insert
205bc36eafdSMike Gerdts *
206bc36eafdSMike Gerdts * RETURN: None
207bc36eafdSMike Gerdts *
208bc36eafdSMike Gerdts * DESCRIPTION: Insert the new subtable to the parent table
209bc36eafdSMike Gerdts *
210bc36eafdSMike Gerdts *****************************************************************************/
211bc36eafdSMike Gerdts
212bc36eafdSMike Gerdts void
DtInsertSubtable(DT_SUBTABLE * ParentTable,DT_SUBTABLE * Subtable)213bc36eafdSMike Gerdts DtInsertSubtable (
214bc36eafdSMike Gerdts DT_SUBTABLE *ParentTable,
215bc36eafdSMike Gerdts DT_SUBTABLE *Subtable)
216bc36eafdSMike Gerdts {
217bc36eafdSMike Gerdts DT_SUBTABLE *ChildTable;
218bc36eafdSMike Gerdts
219bc36eafdSMike Gerdts
220bc36eafdSMike Gerdts Subtable->Peer = NULL;
221bc36eafdSMike Gerdts Subtable->Parent = ParentTable;
222bc36eafdSMike Gerdts Subtable->Depth = ParentTable->Depth + 1;
223bc36eafdSMike Gerdts
224bc36eafdSMike Gerdts /* Link the new entry into the child list */
225bc36eafdSMike Gerdts
226bc36eafdSMike Gerdts if (!ParentTable->Child)
227bc36eafdSMike Gerdts {
228bc36eafdSMike Gerdts ParentTable->Child = Subtable;
229bc36eafdSMike Gerdts }
230bc36eafdSMike Gerdts else
231bc36eafdSMike Gerdts {
232bc36eafdSMike Gerdts /* Walk to the end of the child list */
233bc36eafdSMike Gerdts
234bc36eafdSMike Gerdts ChildTable = ParentTable->Child;
235bc36eafdSMike Gerdts while (ChildTable->Peer)
236bc36eafdSMike Gerdts {
237bc36eafdSMike Gerdts ChildTable = ChildTable->Peer;
238bc36eafdSMike Gerdts }
239bc36eafdSMike Gerdts
240bc36eafdSMike Gerdts /* Add new subtable at the end of the child list */
241bc36eafdSMike Gerdts
242bc36eafdSMike Gerdts ChildTable->Peer = Subtable;
243bc36eafdSMike Gerdts }
244bc36eafdSMike Gerdts }
245bc36eafdSMike Gerdts
246bc36eafdSMike Gerdts
247bc36eafdSMike Gerdts /******************************************************************************
248bc36eafdSMike Gerdts *
249bc36eafdSMike Gerdts * FUNCTION: DtPushSubtable
250bc36eafdSMike Gerdts *
251bc36eafdSMike Gerdts * PARAMETERS: Subtable - Subtable to push
252bc36eafdSMike Gerdts *
253bc36eafdSMike Gerdts * RETURN: None
254bc36eafdSMike Gerdts *
255bc36eafdSMike Gerdts * DESCRIPTION: Push a subtable onto a subtable stack
256bc36eafdSMike Gerdts *
257bc36eafdSMike Gerdts *****************************************************************************/
258bc36eafdSMike Gerdts
259bc36eafdSMike Gerdts void
DtPushSubtable(DT_SUBTABLE * Subtable)260bc36eafdSMike Gerdts DtPushSubtable (
261bc36eafdSMike Gerdts DT_SUBTABLE *Subtable)
262bc36eafdSMike Gerdts {
263bc36eafdSMike Gerdts
264bc36eafdSMike Gerdts Subtable->StackTop = Gbl_SubtableStack;
265bc36eafdSMike Gerdts Gbl_SubtableStack = Subtable;
266bc36eafdSMike Gerdts }
267bc36eafdSMike Gerdts
268bc36eafdSMike Gerdts
269bc36eafdSMike Gerdts /******************************************************************************
270bc36eafdSMike Gerdts *
271bc36eafdSMike Gerdts * FUNCTION: DtPopSubtable
272bc36eafdSMike Gerdts *
273bc36eafdSMike Gerdts * PARAMETERS: None
274bc36eafdSMike Gerdts *
275bc36eafdSMike Gerdts * RETURN: None
276bc36eafdSMike Gerdts *
277bc36eafdSMike Gerdts * DESCRIPTION: Pop a subtable from a subtable stack. Uses global SubtableStack
278bc36eafdSMike Gerdts *
279bc36eafdSMike Gerdts *****************************************************************************/
280bc36eafdSMike Gerdts
281bc36eafdSMike Gerdts void
DtPopSubtable(void)282bc36eafdSMike Gerdts DtPopSubtable (
283bc36eafdSMike Gerdts void)
284bc36eafdSMike Gerdts {
285bc36eafdSMike Gerdts DT_SUBTABLE *Subtable;
286bc36eafdSMike Gerdts
287bc36eafdSMike Gerdts
288bc36eafdSMike Gerdts Subtable = Gbl_SubtableStack;
289bc36eafdSMike Gerdts
290bc36eafdSMike Gerdts if (Subtable)
291bc36eafdSMike Gerdts {
292bc36eafdSMike Gerdts Gbl_SubtableStack = Subtable->StackTop;
293bc36eafdSMike Gerdts }
294bc36eafdSMike Gerdts }
295bc36eafdSMike Gerdts
296bc36eafdSMike Gerdts
297bc36eafdSMike Gerdts /******************************************************************************
298bc36eafdSMike Gerdts *
299bc36eafdSMike Gerdts * FUNCTION: DtPeekSubtable
300bc36eafdSMike Gerdts *
301bc36eafdSMike Gerdts * PARAMETERS: None
302bc36eafdSMike Gerdts *
303bc36eafdSMike Gerdts * RETURN: The subtable on top of stack
304bc36eafdSMike Gerdts *
305bc36eafdSMike Gerdts * DESCRIPTION: Get the subtable on top of stack
306bc36eafdSMike Gerdts *
307bc36eafdSMike Gerdts *****************************************************************************/
308bc36eafdSMike Gerdts
309bc36eafdSMike Gerdts DT_SUBTABLE *
DtPeekSubtable(void)310bc36eafdSMike Gerdts DtPeekSubtable (
311bc36eafdSMike Gerdts void)
312bc36eafdSMike Gerdts {
313bc36eafdSMike Gerdts
314bc36eafdSMike Gerdts return (Gbl_SubtableStack);
315bc36eafdSMike Gerdts }
316bc36eafdSMike Gerdts
317bc36eafdSMike Gerdts
318bc36eafdSMike Gerdts /******************************************************************************
319bc36eafdSMike Gerdts *
320bc36eafdSMike Gerdts * FUNCTION: DtGetNextSubtable
321bc36eafdSMike Gerdts *
322bc36eafdSMike Gerdts * PARAMETERS: ParentTable - Parent table whose children we are
323bc36eafdSMike Gerdts * getting
324bc36eafdSMike Gerdts * ChildTable - Previous child that was found.
325bc36eafdSMike Gerdts * The NEXT child will be returned
326bc36eafdSMike Gerdts *
327bc36eafdSMike Gerdts * RETURN: Pointer to the NEXT child or NULL if none is found.
328bc36eafdSMike Gerdts *
329bc36eafdSMike Gerdts * DESCRIPTION: Return the next peer subtable within the tree.
330bc36eafdSMike Gerdts *
331bc36eafdSMike Gerdts *****************************************************************************/
332bc36eafdSMike Gerdts
333bc36eafdSMike Gerdts DT_SUBTABLE *
DtGetNextSubtable(DT_SUBTABLE * ParentTable,DT_SUBTABLE * ChildTable)334bc36eafdSMike Gerdts DtGetNextSubtable (
335bc36eafdSMike Gerdts DT_SUBTABLE *ParentTable,
336bc36eafdSMike Gerdts DT_SUBTABLE *ChildTable)
337bc36eafdSMike Gerdts {
338bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
339bc36eafdSMike Gerdts
340bc36eafdSMike Gerdts
341bc36eafdSMike Gerdts if (!ChildTable)
342bc36eafdSMike Gerdts {
343bc36eafdSMike Gerdts /* It's really the parent's _scope_ that we want */
344bc36eafdSMike Gerdts
345bc36eafdSMike Gerdts return (ParentTable->Child);
346bc36eafdSMike Gerdts }
347bc36eafdSMike Gerdts
348bc36eafdSMike Gerdts /* Otherwise just return the next peer (NULL if at end-of-list) */
349bc36eafdSMike Gerdts
350bc36eafdSMike Gerdts return (ChildTable->Peer);
351bc36eafdSMike Gerdts }
352bc36eafdSMike Gerdts
353bc36eafdSMike Gerdts
354bc36eafdSMike Gerdts /******************************************************************************
355bc36eafdSMike Gerdts *
356bc36eafdSMike Gerdts * FUNCTION: DtGetParentSubtable
357bc36eafdSMike Gerdts *
358bc36eafdSMike Gerdts * PARAMETERS: Subtable - Current subtable
359bc36eafdSMike Gerdts *
360bc36eafdSMike Gerdts * RETURN: Parent of the given subtable
361bc36eafdSMike Gerdts *
362bc36eafdSMike Gerdts * DESCRIPTION: Get the parent of the given subtable in the tree
363bc36eafdSMike Gerdts *
364bc36eafdSMike Gerdts *****************************************************************************/
365bc36eafdSMike Gerdts
366bc36eafdSMike Gerdts DT_SUBTABLE *
DtGetParentSubtable(DT_SUBTABLE * Subtable)367bc36eafdSMike Gerdts DtGetParentSubtable (
368bc36eafdSMike Gerdts DT_SUBTABLE *Subtable)
369bc36eafdSMike Gerdts {
370bc36eafdSMike Gerdts
371bc36eafdSMike Gerdts if (!Subtable)
372bc36eafdSMike Gerdts {
373bc36eafdSMike Gerdts return (NULL);
374bc36eafdSMike Gerdts }
375bc36eafdSMike Gerdts
376bc36eafdSMike Gerdts return (Subtable->Parent);
377bc36eafdSMike Gerdts }
378bc36eafdSMike Gerdts
379bc36eafdSMike Gerdts
380bc36eafdSMike Gerdts /******************************************************************************
381bc36eafdSMike Gerdts *
382bc36eafdSMike Gerdts * FUNCTION: DtGetSubtableLength
383bc36eafdSMike Gerdts *
384bc36eafdSMike Gerdts * PARAMETERS: Field - Current field list pointer
385bc36eafdSMike Gerdts * Info - Data table info
386bc36eafdSMike Gerdts *
387bc36eafdSMike Gerdts * RETURN: Subtable length
388bc36eafdSMike Gerdts *
389bc36eafdSMike Gerdts * DESCRIPTION: Get length of bytes needed to compile the subtable
390bc36eafdSMike Gerdts *
391bc36eafdSMike Gerdts *****************************************************************************/
392bc36eafdSMike Gerdts
393bc36eafdSMike Gerdts UINT32
DtGetSubtableLength(DT_FIELD * Field,ACPI_DMTABLE_INFO * Info)394bc36eafdSMike Gerdts DtGetSubtableLength (
395bc36eafdSMike Gerdts DT_FIELD *Field,
396bc36eafdSMike Gerdts ACPI_DMTABLE_INFO *Info)
397bc36eafdSMike Gerdts {
398bc36eafdSMike Gerdts UINT32 ByteLength = 0;
399bc36eafdSMike Gerdts UINT8 Step;
400bc36eafdSMike Gerdts UINT8 i;
401bc36eafdSMike Gerdts
402bc36eafdSMike Gerdts
403bc36eafdSMike Gerdts /* Walk entire Info table; Null name terminates */
404bc36eafdSMike Gerdts
405bc36eafdSMike Gerdts for (; Info->Name; Info++)
406bc36eafdSMike Gerdts {
407bc36eafdSMike Gerdts if (Info->Opcode == ACPI_DMT_EXTRA_TEXT)
408bc36eafdSMike Gerdts {
409bc36eafdSMike Gerdts continue;
410bc36eafdSMike Gerdts }
411bc36eafdSMike Gerdts
412bc36eafdSMike Gerdts if (!Field)
413bc36eafdSMike Gerdts {
414bc36eafdSMike Gerdts goto Error;
415bc36eafdSMike Gerdts }
416bc36eafdSMike Gerdts
417bc36eafdSMike Gerdts ByteLength += DtGetFieldLength (Field, Info);
418bc36eafdSMike Gerdts
419bc36eafdSMike Gerdts switch (Info->Opcode)
420bc36eafdSMike Gerdts {
421bc36eafdSMike Gerdts case ACPI_DMT_GAS:
422bc36eafdSMike Gerdts
423bc36eafdSMike Gerdts Step = 5;
424bc36eafdSMike Gerdts break;
425bc36eafdSMike Gerdts
426bc36eafdSMike Gerdts case ACPI_DMT_HESTNTFY:
427bc36eafdSMike Gerdts
428bc36eafdSMike Gerdts Step = 9;
429bc36eafdSMike Gerdts break;
430bc36eafdSMike Gerdts
431bc36eafdSMike Gerdts case ACPI_DMT_IORTMEM:
432bc36eafdSMike Gerdts
433bc36eafdSMike Gerdts Step = 10;
434bc36eafdSMike Gerdts break;
435bc36eafdSMike Gerdts
436bc36eafdSMike Gerdts default:
437bc36eafdSMike Gerdts
438bc36eafdSMike Gerdts Step = 1;
439bc36eafdSMike Gerdts break;
440bc36eafdSMike Gerdts }
441bc36eafdSMike Gerdts
442bc36eafdSMike Gerdts for (i = 0; i < Step; i++)
443bc36eafdSMike Gerdts {
444bc36eafdSMike Gerdts if (!Field)
445bc36eafdSMike Gerdts {
446bc36eafdSMike Gerdts goto Error;
447bc36eafdSMike Gerdts }
448bc36eafdSMike Gerdts
449bc36eafdSMike Gerdts Field = Field->Next;
450bc36eafdSMike Gerdts }
451bc36eafdSMike Gerdts }
452bc36eafdSMike Gerdts
453bc36eafdSMike Gerdts return (ByteLength);
454bc36eafdSMike Gerdts
455bc36eafdSMike Gerdts Error:
456bc36eafdSMike Gerdts if (!Field)
457bc36eafdSMike Gerdts {
458bc36eafdSMike Gerdts sprintf (MsgBuffer, "Found NULL field - Field name \"%s\" needed",
459bc36eafdSMike Gerdts Info->Name);
460bc36eafdSMike Gerdts DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
461bc36eafdSMike Gerdts }
462bc36eafdSMike Gerdts
463bc36eafdSMike Gerdts return (ASL_EOF);
464bc36eafdSMike Gerdts }
465bc36eafdSMike Gerdts
466bc36eafdSMike Gerdts
467bc36eafdSMike Gerdts /******************************************************************************
468bc36eafdSMike Gerdts *
469bc36eafdSMike Gerdts * FUNCTION: DtSetSubtableLength
470bc36eafdSMike Gerdts *
471bc36eafdSMike Gerdts * PARAMETERS: Subtable - Subtable
472bc36eafdSMike Gerdts *
473bc36eafdSMike Gerdts * RETURN: None
474bc36eafdSMike Gerdts *
475bc36eafdSMike Gerdts * DESCRIPTION: Set length of the subtable into its length field
476bc36eafdSMike Gerdts *
477bc36eafdSMike Gerdts *****************************************************************************/
478bc36eafdSMike Gerdts
479bc36eafdSMike Gerdts void
DtSetSubtableLength(DT_SUBTABLE * Subtable)480bc36eafdSMike Gerdts DtSetSubtableLength (
481bc36eafdSMike Gerdts DT_SUBTABLE *Subtable)
482bc36eafdSMike Gerdts {
483bc36eafdSMike Gerdts
484bc36eafdSMike Gerdts if (!Subtable->LengthField)
485bc36eafdSMike Gerdts {
486bc36eafdSMike Gerdts return;
487bc36eafdSMike Gerdts }
488bc36eafdSMike Gerdts
489bc36eafdSMike Gerdts memcpy (Subtable->LengthField, &Subtable->TotalLength,
490bc36eafdSMike Gerdts Subtable->SizeOfLengthField);
491bc36eafdSMike Gerdts }
492