summaryrefslogtreecommitdiffstats
path: root/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
blob: 043ec3d8428fdcb3776ec77c9388891831b93867 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
/** @file
  AML Lib.

  Copyright (c) 2019 - 2021, Arm Limited. All rights reserved.<BR>
  Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#ifndef AML_LIB_H_
#define AML_LIB_H_

/**
  @mainpage Dynamic AML Generation
  @{
    @par Summary
    @{
    ACPI tables are categorized as data tables and definition block
    tables. Dynamic Tables Framework currently supports generation of ACPI
    data tables. Generation of definition block tables is difficult as these
    tables are encoded in ACPI Machine Language (AML), which has a complex
    grammar.

    Dynamic AML Generation is an extension to the Dynamic tables Framework.
    One of the techniques used to simplify definition block generation is to
    fixup a template SSDT table.

    Dynamic AML aims to provide a framework that allows fixing up of an ACPI
    SSDT template with appropriate information about the hardware.

    This framework consists of an:
    - AMLLib core that implements a rich set of interfaces to parse, traverse
      and update AML data.
    - AMLLib library APIs that provides interfaces to search and updates nodes
      in the AML namespace.
    @}
  @}
*/

#include <AmlCpcInfo.h>
#include <IndustryStandard/Acpi.h>

#ifndef AML_HANDLE

/** Node handle.
*/
typedef void *AML_NODE_HANDLE;

/** Root Node handle.
*/
typedef void *AML_ROOT_NODE_HANDLE;

/** Object Node handle.
*/
typedef void *AML_OBJECT_NODE_HANDLE;

/** Data Node handle.
*/
typedef void *AML_DATA_NODE_HANDLE;

#endif // AML_HANDLE

/** Memory attributes, _MEM (2 bits)

  Possible values are:
    0-The memory is non-cacheable
    1-The memory is cacheable (DEPRECATED)
    2-The memory is cacheable and supports
      write combining (DEPRECATED)
    3-The memory is cacheable and prefetchable

  @par Reference(s):
  - ACPI 6.5, s6.4.3.5.5 "Resource Type Specific Flags"

**/
typedef enum {
  AmlMemoryNonCacheable          = 0,
  AmlMemoryCacheable             = 1,
  AmlMemoryCacheableWriteCombine = 2,
  AmlMemoryCacheablePrefetch     = 3,
  AmlMemoryCacheablityMax        = 4
} AML_MEMORY_ATTRIBUTES_MEM;

/** Memory attributes, _MTP (2 bits)

  Possible values are:
    0-AddressRangeMemory
    1-AddressRangeReserved
    2-AddressRangeACPI
    3-AddressRangeNVS

  @par Reference(s):
  - ACPI 6.5, s6.4.3.5.5 "Resource Type Specific Flags"

**/
typedef enum {
  AmlAddressRangeMemory   = 0,
  AmlAddressRangeReserved = 1,
  AmlAddressRangeACPI     = 2,
  AmlAddressRangeNVS      = 3,
  AmlAddressRangeMax      = 4
} AML_MEMORY_ATTRIBUTES_MTP;

/** Method parameter types

  Possible values are:
    0 - AmlMethodParamTypeInteger
    1 - AmlMethodParamTypeString
    2 - AmlMethodParamTypeArg
    3 - AmlMethodParamTypeLocal

  @par Reference(s)
  - ACPI 6.5, s20.2.5 "Term Objects Encoding"

**/
typedef enum {
  AmlMethodParamTypeInteger = 0,
  AmlMethodParamTypeString  = 1,
  AmlMethodParamTypeArg     = 2,
  AmlMethodParamTypeLocal   = 3
} AML_METHOD_PARAM_TYPE;

/** AML Method parameter data
  holds the AML method parameter data.
**/
typedef union {
  UINT8     Arg;
  UINT8     Local;
  UINT64    Integer;
  VOID      *Buffer;
} AML_METHOD_PARAM_DATA;

/** structure to hold AML method parameter types
  Type  -   Type of parameter
  Data  -   holds data of parameter
            if Type is AmlMethodParamTypeInteger
              then Data is of type Integer to hold integer value.
            if Type is AmlMethodParamTypeString
              then Data contains null terminated string.
            If Type is AmlMethodParamTypeArg
              then Data contains the Argument number,
              0 to 6 are supported value.
            If Type is AmlMethodParamTypeLocal
              then Data contains the Local variable number,
              0 to 7 are supported value.
  DataSize - for future use
**/
typedef struct {
  AML_METHOD_PARAM_TYPE    Type;
  AML_METHOD_PARAM_DATA    Data;
  UINTN                    DataSize;
} AML_METHOD_PARAM;

/** Parse the definition block.

  The function parses the whole AML blob. It starts with the ACPI DSDT/SSDT
  header and then parses the AML bytestream.
  A tree structure is returned via the RootPtr.
  The tree must be deleted with the AmlDeleteTree function.

  @ingroup UserApis

  @param  [in]  DefinitionBlock   Pointer to the definition block.
  @param  [out] RootPtr           Pointer to the root node of the AML tree.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_BUFFER_TOO_SMALL    No space left in the buffer.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlParseDefinitionBlock (
  IN  CONST EFI_ACPI_DESCRIPTION_HEADER  *DefinitionBlock,
  OUT       AML_ROOT_NODE_HANDLE         *RootPtr
  );

/** Serialize an AML definition block.

  This functions allocates memory with the "AllocateZeroPool ()"
  function. This memory is used to serialize the AML tree and is
  returned in the Table.

  @ingroup UserApis

  @param [in]  RootNode         Root node of the tree.
  @param [out] Table            On return, hold the serialized
                                definition block.

  @retval EFI_SUCCESS            The function completed successfully.
  @retval EFI_INVALID_PARAMETER  Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES   Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlSerializeDefinitionBlock (
  IN  AML_ROOT_NODE_HANDLE         RootNode,
  OUT EFI_ACPI_DESCRIPTION_HEADER  **Table
  );

/** Clone a node and its children (clone a tree branch).

  The cloned branch returned is not attached to any tree.

  @ingroup UserApis

  @param  [in]  Node        Pointer to a node.
                            Node is the head of the branch to clone.
  @param  [out] ClonedNode  Pointer holding the head of the created cloned
                            branch.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCloneTree (
  IN  AML_NODE_HANDLE  Node,
  OUT AML_NODE_HANDLE  *ClonedNode
  );

/** Delete a Node and its children.

  The Node must be removed from the tree first,
  or must be the root node.

  @ingroup UserApis

  @param  [in]  Node  Pointer to the node to delete.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDeleteTree (
  IN  AML_NODE_HANDLE  Node
  );

/** Detach the Node from the tree.

  The function will fail if the Node is in its parent's fixed
  argument list.
  The Node is not deleted. The deletion is done separately
  from the removal.

  @ingroup UserApis

  @param  [in]  Node  Pointer to a Node.
                      Must be a data node or an object node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDetachNode (
  IN  AML_NODE_HANDLE  Node
  );

/** Attach a node in an AML tree.

  The node will be added as the last statement of the ParentNode.
  E.g.:
  ASL code corresponding to NewNode:
  Name (_UID, 0)

  ASL code corresponding to ParentNode:
  Device (PCI0) {
    Name(_HID, EISAID("PNP0A08"))
  }

  "AmlAttachNode (ParentNode, NewNode)" will result in:
  ASL code:
  Device (PCI0) {
    Name(_HID, EISAID("PNP0A08"))
    Name (_UID, 0)
  }

  @param  [in]  ParentNode  Pointer to the parent node.
                            Must be a root or an object node.
  @param  [in]  NewNode     Pointer to the node to add.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlAttachNode (
  IN  AML_NODE_HANDLE  ParentNode,
  IN  AML_NODE_HANDLE  NewNode
  );

/** Find a node in the AML namespace, given an ASL path and a reference Node.

   - The AslPath can be an absolute path, or a relative path from the
     reference Node;
   - Node must be a root node or a namespace node;
   - A root node is expected to be at the top of the tree.

  E.g.:
  For the following AML namespace, with the ReferenceNode being the node with
  the name "AAAA":
   - the node with the name "BBBB" can be found by looking for the ASL
     path "BBBB";
   - the root node can be found by looking for the ASL relative path "^",
      or the absolute path "\\".

  AML namespace:
  \
  \-AAAA      <- ReferenceNode
    \-BBBB

  @ingroup NameSpaceApis

  @param  [in]  ReferenceNode   Reference node.
                                If a relative path is given, the
                                search is done from this node. If
                                an absolute path is given, the
                                search is done from the root node.
                                Must be a root node or an object
                                node which is part of the
                                namespace.
  @param  [in]  AslPath         ASL path to the searched node in
                                the namespace. An ASL path name is
                                NULL terminated. Can be a relative
                                or absolute path.
                                E.g.: "\\_SB.CLU0.CPU0" or "^CPU0"
  @param  [out] OutNode         Pointer to the found node.
                                Contains NULL if not found.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_BUFFER_TOO_SMALL    No space left in the buffer.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Out of memory.
**/
EFI_STATUS
EFIAPI
AmlFindNode (
  IN  AML_NODE_HANDLE  ReferenceNode,
  IN  CHAR8            *AslPath,
  OUT AML_NODE_HANDLE  *OutNode
  );

/**
  @defgroup UserApis User APIs
  @{
    User APIs are implemented to ease most common actions that might be done
    using the AmlLib. They allow to find specific objects like "_UID" or
    "_CRS" and to update their value. It also shows what can be done using
    AmlLib functions.
  @}
*/

/** Update the name of a DeviceOp object node.

  @ingroup UserApis

  @param  [in] DeviceOpNode   Object node representing a Device.
                              Must have an OpCode=AML_NAME_OP, SubOpCode=0.
                              OpCode/SubOpCode.
                              DeviceOp object nodes are defined in ASL
                              using the "Device ()" function.
  @param  [in] NewNameString  The new Device's name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlDeviceOpUpdateName (
  IN  AML_OBJECT_NODE_HANDLE  DeviceOpNode,
  IN  CHAR8                   *NewNameString
  );

/** Update an integer value defined by a NameOp object node.

  For compatibility reasons, the NameOpNode must initially
  contain an integer.

  @ingroup UserApis

  @param  [in] NameOpNode   NameOp object node.
                            Must have an OpCode=AML_NAME_OP, SubOpCode=0.
                            NameOp object nodes are defined in ASL
                            using the "Name ()" function.
  @param  [in] NewInt       New Integer value to assign.
                            Must be a UINT64.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpUpdateInteger (
  IN  AML_OBJECT_NODE_HANDLE  NameOpNode,
  IN  UINT64                  NewInt
  );

/** Update a string value defined by a NameOp object node.

  The NameOpNode must initially contain a string.
  The EISAID ASL macro converts a string to an integer. This, it is
  not accepted.

  @ingroup UserApis

  @param  [in] NameOpNode   NameOp object node.
                            Must have an OpCode=AML_NAME_OP, SubOpCode=0.
                            NameOp object nodes are defined in ASL
                            using the "Name ()" function.
  @param  [in] NewName      New NULL terminated string to assign to
                            the NameOpNode.
                            The input string is copied.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpUpdateString (
  IN        AML_OBJECT_NODE_HANDLE  NameOpNode,
  IN  CONST CHAR8                   *NewName
  );

/** Get the first Resource Data element contained in a named object.

  In the following ASL code, the function will return the Resource Data
  node corresponding to the "QWordMemory ()" ASL macro.
  Name (_CRS, ResourceTemplate() {
      QWordMemory (...) {...},
      Interrupt (...) {...}
    }
  )

  Note:
  "_CRS" names defined as methods are not handled by this function.
  They must be defined as names, using the "Name ()" statement.

  @ingroup UserApis

  @param  [in] NameOpNode   NameOp object node defining a named object.
                            Must have an OpCode=AML_NAME_OP, SubOpCode=0.
                            NameOp object nodes are defined in ASL
                            using the "Name ()" function.
  @param  [out] OutRdNode   Pointer to the first Resource Data element of
                            the named object. A Resource Data element
                            is stored in a data node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpGetFirstRdNode (
  IN  AML_OBJECT_NODE_HANDLE  NameOpNode,
  OUT AML_DATA_NODE_HANDLE    *OutRdNode
  );

/** Get the Resource Data element following the CurrRdNode Resource Data.

  In the following ASL code, if CurrRdNode corresponds to the first
  "QWordMemory ()" ASL macro, the function will return the Resource Data
  node corresponding to the "Interrupt ()" ASL macro.
  Name (_CRS, ResourceTemplate() {
      QwordMemory (...) {...},
      Interrupt (...) {...}
    }
  )

  Note:
  "_CRS" names defined as methods are not handled by this function.
  They must be defined as names, using the "Name ()" statement.

  @ingroup UserApis

  @param  [in]  CurrRdNode   Pointer to the current Resource Data element of
                             the named object.
  @param  [out] OutRdNode    Pointer to the Resource Data element following
                             the CurrRdNode.
                             Contain a NULL pointer if CurrRdNode is the
                             last Resource Data element in the list.
                             The "End Tag" is not considered as a resource
                             data element and is not returned.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
**/
EFI_STATUS
EFIAPI
AmlNameOpGetNextRdNode (
  IN  AML_DATA_NODE_HANDLE  CurrRdNode,
  OUT AML_DATA_NODE_HANDLE  *OutRdNode
  );

/** Update the first interrupt of an Interrupt resource data node.

  The flags of the Interrupt resource data are left unchanged.

  The InterruptRdNode corresponds to the Resource Data created by the
  "Interrupt ()" ASL macro. It is an Extended Interrupt Resource Data.
  See ACPI 6.3 specification, s6.4.3.6 "Extended Interrupt Descriptor"
  for more information about Extended Interrupt Resource Data.

  @ingroup UserApis

  @param  [in]  InterruptRdNode   Pointer to the an extended interrupt
                                  resource data node.
  @param  [in]  Irq               Interrupt value to update.

  @retval  EFI_SUCCESS            The function completed successfully.
  @retval  EFI_INVALID_PARAMETER  Invalid parameter.
  @retval  EFI_OUT_OF_RESOURCES   Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdInterrupt (
  IN  AML_DATA_NODE_HANDLE  InterruptRdNode,
  IN  UINT32                Irq
  );

/** Update the base address and length of a QWord resource data node.

  @ingroup UserApis

  @param  [in] QWordRdNode         Pointer a QWord resource data
                                   node.
  @param  [in] BaseAddress         Base address.
  @param  [in] BaseAddressLength   Base address length.

  @retval  EFI_SUCCESS            The function completed successfully.
  @retval  EFI_INVALID_PARAMETER  Invalid parameter.
  @retval  EFI_OUT_OF_RESOURCES   Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdQWord (
  IN  AML_DATA_NODE_HANDLE  QWordRdNode,
  IN  UINT64                BaseAddress,
  IN  UINT64                BaseAddressLength
  );

/** Code generation for the "DWordIO ()" ASL function.

  The Resource Data effectively created is a DWord Address Space Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.5.2 "DWord Address Space Descriptor".
   - s19.6.34 "DWordIO".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  See ACPI 6.4 spec, s19.6.34 for more.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  IsPosDecode          Decode parameter
  @param [in]  IsaRanges            Possible values are:
                                     0-Reserved
                                     1-NonISAOnly
                                     2-ISAOnly
                                     3-EntireRange
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Not supported. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Not supported. Must be NULL.
  @param [in]  IsDenseTranslation   TranslationDensity parameter.
  @param [in]  IsTypeStatic         TranslationType parameter.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdDWordIo (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        BOOLEAN IsPosDecode,
  IN        UINT8 IsaRanges,
  IN        UINT32 AddressGranularity,
  IN        UINT32 AddressMinimum,
  IN        UINT32 AddressMaximum,
  IN        UINT32 AddressTranslation,
  IN        UINT32 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        BOOLEAN IsDenseTranslation,
  IN        BOOLEAN IsTypeStatic,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "DWordMemory ()" ASL function.

  The Resource Data effectively created is a DWord Address Space Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.5.2 "DWord Address Space Descriptor".
   - s19.6.35 "DWordMemory".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  See ACPI 6.4 spec, s19.6.35 for more.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsPosDecode          Decode parameter
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  Cacheable            Possible values are:
                                    0-The memory is non-cacheable
                                    1-The memory is cacheable
                                    2-The memory is cacheable and supports
                                      write combining
                                    3-The memory is cacheable and prefetchable
  @param [in]  IsReadWrite          ReadAndWrite parameter.
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Not supported. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Not supported. Must be NULL.
  @param [in]  MemoryRangeType      Possible values are:
                                      0-AddressRangeMemory
                                      1-AddressRangeReserved
                                      2-AddressRangeACPI
                                      3-AddressRangeNVS
  @param [in]  IsTypeStatic         TranslationType parameter.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdDWordMemory (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsPosDecode,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        AML_MEMORY_ATTRIBUTES_MEM Cacheable,
  IN        BOOLEAN IsReadWrite,
  IN        UINT32 AddressGranularity,
  IN        UINT32 AddressMinimum,
  IN        UINT32 AddressMaximum,
  IN        UINT32 AddressTranslation,
  IN        UINT32 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        AML_MEMORY_ATTRIBUTES_MTP MemoryRangeType,
  IN        BOOLEAN IsTypeStatic,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "Memory32Fixed ()" ASL macro.

  The Resource Data effectively created is a 32-bit Memory Resource
  Data. Cf ACPI 6.4:
   - s19.6.83 "Memory Resource Descriptor Macro".
   - s19.2.8 "Memory32FixedTerm".

  See ACPI 6.4 spec, s19.2.8 for more.

  @param [in]  IsReadWrite          ReadAndWrite parameter.
  @param [in]  Address              AddressBase parameter.
  @param [in]  RangeLength          Range length.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewMemNode           If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdMemory32Fixed (
  BOOLEAN                 IsReadWrite,
  UINT32                  Address,
  UINT32                  RangeLength,
  AML_OBJECT_NODE_HANDLE  NameOpNode,
  AML_DATA_NODE_HANDLE    *NewMemNode
  );

/** Code generation for the "WordBusNumber ()" ASL function.

  The Resource Data effectively created is a Word Address Space Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.5.3 "Word Address Space Descriptor".
   - s19.6.149 "WordBusNumber".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  See ACPI 6.4 spec, s19.6.149 for more.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  IsPosDecode          Decode parameter
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Not supported. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Not supported. Must be NULL.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdWordBusNumber (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        BOOLEAN IsPosDecode,
  IN        UINT16 AddressGranularity,
  IN        UINT16 AddressMinimum,
  IN        UINT16 AddressMaximum,
  IN        UINT16 AddressTranslation,
  IN        UINT16 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "WordIO ()" ASL function.

  The Resource Data effectively created is a Word Address Space Resource
  Data. Cf ACPI 6.5:
   - s6.4.3.5.3 "Word Address Space Descriptor".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  IsPosDecode          Decode parameter
  @param [in]  IsaRanges            Possible values are:
                                     0-Reserved
                                     1-NonISAOnly
                                     2-ISAOnly
                                     3-EntireRange
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Not supported. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Not supported. Must be NULL.
  @param [in]  IsDenseTranslation   TranslationDensity parameter.
  @param [in]  IsTypeStatic         TranslationType parameter.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdWordIo (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        BOOLEAN IsPosDecode,
  IN        UINT8 IsaRanges,
  IN        UINT16 AddressGranularity,
  IN        UINT16 AddressMinimum,
  IN        UINT16 AddressMaximum,
  IN        UINT16 AddressTranslation,
  IN        UINT16 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        BOOLEAN IsDenseTranslation,
  IN        BOOLEAN IsTypeStatic,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "QWordIO ()" ASL function.

  The Resource Data effectively created is a QWord Address Space Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.5.1 "QWord Address Space Descriptor".
   - s19.6.109 "QWordIO".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  See ACPI 6.4 spec, s19.6.109 for more.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  IsPosDecode          Decode parameter
  @param [in]  IsaRanges            Possible values are:
                                     0-Reserved
                                     1-NonISAOnly
                                     2-ISAOnly
                                     3-EntireRange
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Unused. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Unused. Must be NULL.
  @param [in]  IsDenseTranslation   TranslationDensity parameter.
  @param [in]  IsTypeStatic         TranslationType parameter.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdQWordIo (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        BOOLEAN IsPosDecode,
  IN        UINT8 IsaRanges,
  IN        UINT64 AddressGranularity,
  IN        UINT64 AddressMinimum,
  IN        UINT64 AddressMaximum,
  IN        UINT64 AddressTranslation,
  IN        UINT64 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        BOOLEAN IsDenseTranslation,
  IN        BOOLEAN IsTypeStatic,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "QWordMemory ()" ASL function.

  The Resource Data effectively created is a QWord Address Space Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.5.1 "QWord Address Space Descriptor".
   - s19.6.110 "QWordMemory".

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  See ACPI 6.4 spec, s19.6.110 for more.

  @param [in]  IsResourceConsumer   ResourceUsage parameter.
  @param [in]  IsPosDecode          Decode parameter.
  @param [in]  IsMinFixed           Minimum address is fixed.
  @param [in]  IsMaxFixed           Maximum address is fixed.
  @param [in]  Cacheable            Possible values are:
                                    0-The memory is non-cacheable
                                    1-The memory is cacheable
                                    2-The memory is cacheable and supports
                                      write combining
                                    3-The memory is cacheable and prefetchable
  @param [in]  IsReadWrite          ReadAndWrite parameter.
  @param [in]  AddressGranularity   Address granularity.
  @param [in]  AddressMinimum       Minimum address.
  @param [in]  AddressMaximum       Maximum address.
  @param [in]  AddressTranslation   Address translation.
  @param [in]  RangeLength          Range length.
  @param [in]  ResourceSourceIndex  Resource Source index.
                                    Not supported. Must be 0.
  @param [in]  ResourceSource       Resource Source.
                                    Not supported. Must be NULL.
  @param [in]  MemoryRangeType      Possible values are:
                                      0-AddressRangeMemory
                                      1-AddressRangeReserved
                                      2-AddressRangeACPI
                                      3-AddressRangeNVS
  @param [in]  IsTypeStatic         TranslationType parameter.
  @param [in]  NameOpNode           NameOp object node defining a named object.
                                    If provided, append the new resource data
                                    node to the list of resource data elements
                                    of this node.
  @param [out] NewRdNode            If provided and success,
                                    contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdQWordMemory (
  IN        BOOLEAN IsResourceConsumer,
  IN        BOOLEAN IsPosDecode,
  IN        BOOLEAN IsMinFixed,
  IN        BOOLEAN IsMaxFixed,
  IN        AML_MEMORY_ATTRIBUTES_MEM Cacheable,
  IN        BOOLEAN IsReadWrite,
  IN        UINT64 AddressGranularity,
  IN        UINT64 AddressMinimum,
  IN        UINT64 AddressMaximum,
  IN        UINT64 AddressTranslation,
  IN        UINT64 RangeLength,
  IN        UINT8 ResourceSourceIndex,
  IN  CONST CHAR8 *ResourceSource,
  IN        AML_MEMORY_ATTRIBUTES_MTP MemoryRangeType,
  IN        BOOLEAN IsTypeStatic,
  IN        AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
  OUT       AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** Code generation for the "Interrupt ()" ASL function.

  The Resource Data effectively created is an Extended Interrupt Resource
  Data. Cf ACPI 6.4:
   - s6.4.3.6 "Extended Interrupt Descriptor"
   - s19.6.64 "Interrupt (Interrupt Resource Descriptor Macro)"

  The created resource data node can be:
   - appended to the list of resource data elements of the NameOpNode.
     In such case NameOpNode must be defined by a the "Name ()" ASL statement
     and initially contain a "ResourceTemplate ()".
   - returned through the NewRdNode parameter.

  @ingroup CodeGenApis

  @param  [in]  ResourceConsumer The device consumes the specified interrupt
                                 or produces it for use by a child device.
  @param  [in]  EdgeTriggered    The interrupt is edge triggered or
                                 level triggered.
  @param  [in]  ActiveLow        The interrupt is active-high or active-low.
  @param  [in]  Shared           The interrupt can be shared with other
                                 devices or not (Exclusive).
  @param  [in]  IrqList          Interrupt list. Must be non-NULL.
  @param  [in]  IrqCount         Interrupt count. Must be non-zero.
  @param  [in]  NameOpNode       NameOp object node defining a named object.
                                 If provided, append the new resource data node
                                 to the list of resource data elements of this
                                 node.
  @param  [out] NewRdNode        If provided and success,
                                 contain the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Could not allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenRdInterrupt (
  IN  BOOLEAN                 ResourceConsumer,
  IN  BOOLEAN                 EdgeTriggered,
  IN  BOOLEAN                 ActiveLow,
  IN  BOOLEAN                 Shared,
  IN  UINT32                  *IrqList,
  IN  UINT8                   IrqCount,
  IN  AML_OBJECT_NODE_HANDLE  NameOpNode  OPTIONAL,
  OUT AML_DATA_NODE_HANDLE    *NewRdNode  OPTIONAL
  );

/** AML code generation for DefinitionBlock.

  Create a Root Node handle.
  It is the caller's responsibility to free the allocated memory
  with the AmlDeleteTree function.

  AmlCodeGenDefinitionBlock (TableSignature, OemId, TableID, OEMRevision) is
  equivalent to the following ASL code:
    DefinitionBlock (AMLFileName, TableSignature, ComplianceRevision,
      OemId, TableID, OEMRevision) {}
  with the ComplianceRevision set to 2 and the AMLFileName is ignored.

  @ingroup CodeGenApis

  @param[in]  TableSignature       4-character ACPI signature.
                                   Must be 'DSDT' or 'SSDT'.
  @param[in]  OemId                6-character string OEM identifier.
  @param[in]  OemTableId           8-character string OEM table identifier.
  @param[in]  OemRevision          OEM revision number.
  @param[out] DefinitionBlockTerm  The ASL Term handle representing a
                                   Definition Block.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenDefinitionBlock (
  IN  CONST CHAR8                 *TableSignature,
  IN  CONST CHAR8                 *OemId,
  IN  CONST CHAR8                 *OemTableId,
  IN        UINT32                OemRevision,
  OUT       AML_ROOT_NODE_HANDLE  *NewRootNode
  );

/** AML code generation for a Name object node, containing a String.

  AmlCodeGenNameString ("_HID", "HID0000", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Name(_HID, "HID0000")

  @ingroup CodeGenApis

  @param  [in] NameString     The new variable name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  String         NULL terminated String to associate to the
                              NameString.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameString (
  IN  CONST CHAR8                   *NameString,
  IN        CHAR8                   *String,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a Name object node, containing an Integer.

  AmlCodeGenNameInteger ("_UID", 1, ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Name(_UID, One)

  @ingroup CodeGenApis

  @param  [in] NameString     The new variable name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  Integer        Integer to associate to the NameString.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameInteger (
  IN  CONST CHAR8                   *NameString,
  IN        UINT64                  Integer,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a Name object node, containing a Package.

  AmlCodeGenNamePackage ("PKG0", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Name(PKG0, Package () {})

  @ingroup CodeGenApis

  @param [in]  NameString     The new variable name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNamePackage (
  IN  CONST CHAR8 *NameString,
  IN        AML_NODE_HANDLE ParentNode, OPTIONAL
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a Name object node, containing a ResourceTemplate.

  AmlCodeGenNameResourceTemplate ("PRS0", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Name(PRS0, ResourceTemplate () {})

  @ingroup CodeGenApis

  @param [in]  NameString     The new variable name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameResourceTemplate (
  IN  CONST CHAR8 *NameString,
  IN        AML_NODE_HANDLE ParentNode, OPTIONAL
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a Name object node, containing a String.

  AmlCodeGenNameUnicodeString ("_STR", L"String", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Name(_STR, Unicode ("String"))

  @ingroup CodeGenApis

  @param  [in] NameString     The new variable name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  String         NULL terminated Unicode String to associate to the
                              NameString.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenNameUnicodeString (
  IN  CONST CHAR8                   *NameString,
  IN        CHAR16                  *String,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** Add a _PRT entry.

  AmlCodeGenPrtEntry (0x0FFFF, 0, "LNKA", 0, PrtNameNode) is
  equivalent of the following ASL code:
    Package (4) {
      0x0FFFF, // Address: Device address (([Device Id] << 16) | 0xFFFF).
      0,       // Pin: PCI pin number of the device (0-INTA, ...).
      LNKA     // Source: Name of the device that allocates the interrupt
               // to which the above pin is connected.
      0        // Source Index: Source is assumed to only describe one
               // interrupt, so let it to index 0.
    }

  The package is added at the tail of the list of the input _PRT node
  name:
    Name (_PRT, Package () {
      [Pre-existing _PRT entries],
      [Newly created _PRT entry]
    })

  Cf. ACPI 6.4, s6.2.13 "_PRT (PCI Routing Table)"

  @ingroup CodeGenApis

  @param [in]  Address        Address. Cf ACPI 6.4 specification, Table 6.2:
                              "ADR Object Address Encodings":
                              High word-Device #, Low word-Function #. (for
                              example, device 3, function 2 is 0x00030002).
                              To refer to all the functions on a device #,
                              use a function number of FFFF).
  @param [in]  Pin            PCI pin number of the device (0-INTA ... 3-INTD).
                              Must be between 0-3.
  @param [in]  LinkName       Link Name, i.e. device in the AML NameSpace
                              describing the interrupt used.
                              The input string is copied.
  @param [in]  SourceIndex    Source index or GSIV.
  @param [in]  PrtNameNode    Prt Named node to add the object to ....

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddPrtEntry (
  IN        UINT32                  Address,
  IN        UINT8                   Pin,
  IN  CONST CHAR8                   *LinkName,
  IN        UINT32                  SourceIndex,
  IN        AML_OBJECT_NODE_HANDLE  PrtNameNode
  );

/** AML code generation for a Device object node.

  AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Device(COM0) {}

  @ingroup CodeGenApis

  @param  [in] NameString     The new Device's name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenDevice (
  IN  CONST CHAR8                   *NameString,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a ThermalZone object node.

  AmlCodeGenThermalZone ("TZ00", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    ThermalZone(TZ00) {}

  @ingroup CodeGenApis

  @param  [in] NameString     The new ThermalZone's name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenThermalZone (
  IN  CONST CHAR8                   *NameString,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a Scope object node.

  AmlCodeGenScope ("_SB", ParentNode, NewObjectNode) is
  equivalent of the following ASL code:
    Scope(_SB) {}

  @ingroup CodeGenApis

  @param  [in] NameString     The new Scope's name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "DEV0", "DV15.DEV0", etc.
                              The input string is copied.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewObjectNode  If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenScope (
  IN  CONST CHAR8                   *NameString,
  IN        AML_NODE_HANDLE         ParentNode      OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode   OPTIONAL
  );

/** AML code generation for a method returning a NameString.

  AmlCodeGenMethodRetNameString (
    "MET0", "_CRS", 1, TRUE, 3, ParentNode, NewObjectNode
    );
  is equivalent of the following ASL code:
    Method(MET0, 1, Serialized, 3) {
      Return (_CRS)
    }

  The ASL parameters "ReturnType" and "ParameterTypes" are not asked
  in this function. They are optional parameters in ASL.

  @ingroup CodeGenApis

  @param [in]  MethodNameString     The new Method's name.
                                    Must be a NULL-terminated ASL NameString
                                    e.g.: "MET0", "_SB.MET0", etc.
                                    The input string is copied.
  @param [in]  ReturnedNameString   The name of the object returned by the
                                    method. Optional parameter, can be:
                                     - NULL (ignored).
                                     - A NULL-terminated ASL NameString.
                                       e.g.: "MET0", "_SB.MET0", etc.
                                       The input string is copied.
  @param [in]  NumArgs              Number of arguments.
                                    Must be 0 <= NumArgs <= 6.
  @param [in]  IsSerialized         TRUE is equivalent to Serialized.
                                    FALSE is equivalent to NotSerialized.
                                    Default is NotSerialized in ASL spec.
  @param [in]  SyncLevel            Synchronization level for the method.
                                    Must be 0 <= SyncLevel <= 15.
                                    Default is 0 in ASL.
  @param [in]  ParentNode           If provided, set ParentNode as the parent
                                    of the node created.
  @param [out] NewObjectNode        If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenMethodRetNameString (
  IN  CONST CHAR8                   *MethodNameString,
  IN  CONST CHAR8                   *ReturnedNameString   OPTIONAL,
  IN        UINT8                   NumArgs,
  IN        BOOLEAN                 IsSerialized,
  IN        UINT8                   SyncLevel,
  IN        AML_NODE_HANDLE         ParentNode           OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode        OPTIONAL
  );

/** AML code generation for a method returning an Integer.

  AmlCodeGenMethodRetInteger (
    "_CBA", 0, 1, TRUE, 3, ParentNode, NewObjectNode
    );
  is equivalent of the following ASL code:
    Method(_CBA, 1, Serialized, 3) {
      Return (0)
    }

  The ASL parameters "ReturnType" and "ParameterTypes" are not asked
  in this function. They are optional parameters in ASL.

  @param [in]  MethodNameString     The new Method's name.
                                    Must be a NULL-terminated ASL NameString
                                    e.g.: "MET0", "_SB.MET0", etc.
                                    The input string is copied.
  @param [in]  ReturnedInteger      The value of the integer returned by the
                                    method.
  @param [in]  NumArgs              Number of arguments.
                                    Must be 0 <= NumArgs <= 6.
  @param [in]  IsSerialized         TRUE is equivalent to Serialized.
                                    FALSE is equivalent to NotSerialized.
                                    Default is NotSerialized in ASL spec.
  @param [in]  SyncLevel            Synchronization level for the method.
                                    Must be 0 <= SyncLevel <= 15.
                                    Default is 0 in ASL.
  @param [in]  ParentNode           If provided, set ParentNode as the parent
                                    of the node created.
  @param [out] NewObjectNode        If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenMethodRetInteger (
  IN  CONST CHAR8                   *MethodNameString,
  IN        UINT64                  ReturnedInteger,
  IN        UINT8                   NumArgs,
  IN        BOOLEAN                 IsSerialized,
  IN        UINT8                   SyncLevel,
  IN        AML_NODE_HANDLE         ParentNode           OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode        OPTIONAL
  );

/** AML code generation for a method returning a NameString that takes an
    integer argument.

  AmlCodeGenMethodRetNameStringIntegerArgument (
    "MET0", "MET1", 1, TRUE, 3, 5, ParentNode, NewObjectNode
    );
  is equivalent of the following ASL code:
    Method(MET0, 1, Serialized, 3) {
      Return (MET1 (5))
    }

  The ASL parameters "ReturnType" and "ParameterTypes" are not asked
  in this function. They are optional parameters in ASL.

  @param [in]  MethodNameString     The new Method's name.
                                    Must be a NULL-terminated ASL NameString
                                    e.g.: "MET0", "_SB.MET0", etc.
                                    The input string is copied.
  @param [in]  ReturnedNameString   The name of the object returned by the
                                    method. Optional parameter, can be:
                                     - NULL (ignored).
                                     - A NULL-terminated ASL NameString.
                                       e.g.: "MET0", "_SB.MET0", etc.
                                       The input string is copied.
  @param [in]  NumArgs              Number of arguments.
                                    Must be 0 <= NumArgs <= 6.
  @param [in]  IsSerialized         TRUE is equivalent to Serialized.
                                    FALSE is equivalent to NotSerialized.
                                    Default is NotSerialized in ASL spec.
  @param [in]  SyncLevel            Synchronization level for the method.
                                    Must be 0 <= SyncLevel <= 15.
                                    Default is 0 in ASL.
  @param [in]  IntegerArgument      Argument to pass to the NameString.
  @param [in]  ParentNode           If provided, set ParentNode as the parent
                                    of the node created.
  @param [out] NewObjectNode        If success, contains the created node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCodeGenMethodRetNameStringIntegerArgument (
  IN  CONST CHAR8                   *MethodNameString,
  IN  CONST CHAR8                   *ReturnedNameString   OPTIONAL,
  IN        UINT8                   NumArgs,
  IN        BOOLEAN                 IsSerialized,
  IN        UINT8                   SyncLevel,
  IN        UINT64                  IntegerArgument,
  IN        AML_NODE_HANDLE         ParentNode           OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewObjectNode        OPTIONAL
  );

/** Create a _LPI name.

  AmlCreateLpiNode ("_LPI", 0, 1, ParentNode, &LpiNode) is
  equivalent of the following ASL code:
    Name (_LPI, Package (
                  0,  // Revision
                  1,  // LevelId
                  0   // Count
                  ))

  This function doesn't define any LPI state. As shown above, the count
  of _LPI state is set to 0.
  The AmlAddLpiState () function must be used to add LPI states.

  Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".

  @ingroup CodeGenApis

  @param [in]  LpiNameString  The new LPI 's object name.
                              Must be a NULL-terminated ASL NameString
                              e.g.: "_LPI", "DEV0.PLPI", etc.
                              The input string is copied.
  @param [in]  Revision       Revision number of the _LPI states.
  @param [in]  LevelId        A platform defined number that identifies the
                              level of hierarchy of the processor node to
                              which the LPI states apply.
  @param [in]  ParentNode     If provided, set ParentNode as the parent
                              of the node created.
  @param [out] NewLpiNode     If success, contains the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCreateLpiNode (
  IN  CONST CHAR8                   *LpiNameString,
  IN        UINT16                  Revision,
  IN        UINT64                  LevelId,
  IN        AML_NODE_HANDLE         ParentNode   OPTIONAL,
  OUT       AML_OBJECT_NODE_HANDLE  *NewLpiNode   OPTIONAL
  );

/** Add an _LPI state to a LPI node created using AmlCreateLpiNode ().

  AmlAddLpiState () increments the Count of LPI states in the LPI node by one,
  and adds the following package:
    Package() {
      MinResidency,
      WorstCaseWakeLatency,
      Flags,
      ArchFlags,
      ResCntFreq,
      EnableParentState,
      (GenericRegisterDescriptor != NULL) ?           // Entry method. If a
        ResourceTemplate(GenericRegisterDescriptor) : // Register is given,
        Integer,                                      // use it. Use the
                                                      // Integer otherwise.
      ResourceTemplate() {                            // NULL Residency Counter
        Register (SystemMemory, 0, 0, 0, 0)
      },
      ResourceTemplate() {                            // NULL Usage Counter
        Register (SystemMemory, 0, 0, 0, 0)
      },
      ""                                              // NULL State Name
    },

  Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".

  @ingroup CodeGenApis

  @param [in]  MinResidency               Minimum Residency.
  @param [in]  WorstCaseWakeLatency       Worst case wake-up latency.
  @param [in]  Flags                      Flags.
  @param [in]  ArchFlags                  Architectural flags.
  @param [in]  ResCntFreq                 Residency Counter Frequency.
  @param [in]  EnableParentState          Enabled Parent State.
  @param [in]  GenericRegisterDescriptor  Entry Method.
                                          If not NULL, use this Register to
                                          describe the entry method address.
  @param [in]  Integer                    Entry Method.
                                          If GenericRegisterDescriptor is NULL,
                                          take this value.
  @param [in]  ResidencyCounterRegister   If not NULL, use it to populate the
                                          residency counter register.
  @param [in]  UsageCounterRegister       If not NULL, use it to populate the
                                          usage counter register.
  @param [in]  StateName                  If not NULL, use it to populate the
                                          state name.
  @param [in]  LpiNode                    Lpi node created with the function
                                          AmlCreateLpiNode to which the new LPI
                                          state is appended.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddLpiState (
  IN  UINT32                                  MinResidency,
  IN  UINT32                                  WorstCaseWakeLatency,
  IN  UINT32                                  Flags,
  IN  UINT32                                  ArchFlags,
  IN  UINT32                                  ResCntFreq,
  IN  UINT32                                  EnableParentState,
  IN  EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE  *GenericRegisterDescriptor   OPTIONAL,
  IN  UINT64                                  Integer                     OPTIONAL,
  IN  EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE  *ResidencyCounterRegister    OPTIONAL,
  IN  EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE  *UsageCounterRegister        OPTIONAL,
  IN  CHAR8                                   *StateName                   OPTIONAL,
  IN  AML_OBJECT_NODE_HANDLE                  LpiNode
  );

/** AML code generation for a _DSD device data object.

  AmlAddDeviceDataDescriptorPackage (Uuid, DsdNode, PackageNode) is
  equivalent of the following ASL code:
    ToUUID(Uuid),
    Package () {}

  Cf ACPI 6.4 specification, s6.2.5 "_DSD (Device Specific Data)".

  _DSD (Device Specific Data) Implementation Guide
  https://github.com/UEFI/DSD-Guide
  Per s3. "'Well-Known _DSD UUIDs and Data Structure Formats'"
  If creating a Device Properties data then UUID daffd814-6eba-4d8c-8a91-bc9bbf4aa301 should be used.

  @param [in]  Uuid           The Uuid of the descriptor to be created
  @param [in]  DsdNode        Node of the DSD Package.
  @param [out] PackageNode    If success, contains the created package node.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddDeviceDataDescriptorPackage (
  IN  CONST EFI_GUID                *Uuid,
  IN        AML_OBJECT_NODE_HANDLE  DsdNode,
  OUT       AML_OBJECT_NODE_HANDLE  *PackageNode
  );

/** AML code generation to add a package with a name and value,
    to a parent package.
    This is useful to build the _DSD package but can be used in other cases.

  AmlAddNameIntegerPackage ("Name", Value, PackageNode) is
  equivalent of the following ASL code:
    Package (2) {"Name", Value}

  Cf ACPI 6.4 specification, s6.2.5 "_DSD (Device Specific Data)".

  @param [in]  Name           String to place in first entry of package
  @param [in]  Value          Integer to place in second entry of package
  @param [in]  PackageNode    Package to add new sub package to.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddNameIntegerPackage (
  IN CHAR8                   *Name,
  IN UINT64                  Value,
  IN AML_OBJECT_NODE_HANDLE  PackageNode
  );

/** Create a _CPC node.

  Creates and optionally adds the following node
   Name(_CPC, Package()
   {
    NumEntries,                              // Integer
    Revision,                                // Integer
    HighestPerformance,                      // Integer or Buffer (Resource Descriptor)
    NominalPerformance,                      // Integer or Buffer (Resource Descriptor)
    LowestNonlinearPerformance,              // Integer or Buffer (Resource Descriptor)
    LowestPerformance,                       // Integer or Buffer (Resource Descriptor)
    GuaranteedPerformanceRegister,           // Buffer (Resource Descriptor)
    DesiredPerformanceRegister ,             // Buffer (Resource Descriptor)
    MinimumPerformanceRegister ,             // Buffer (Resource Descriptor)
    MaximumPerformanceRegister ,             // Buffer (Resource Descriptor)
    PerformanceReductionToleranceRegister,   // Buffer (Resource Descriptor)
    TimeWindowRegister,                      // Buffer (Resource Descriptor)
    CounterWraparoundTime,                   // Integer or Buffer (Resource Descriptor)
    ReferencePerformanceCounterRegister,     // Buffer (Resource Descriptor)
    DeliveredPerformanceCounterRegister,     // Buffer (Resource Descriptor)
    PerformanceLimitedRegister,              // Buffer (Resource Descriptor)
    CPPCEnableRegister                       // Buffer (Resource Descriptor)
    AutonomousSelectionEnable,               // Integer or Buffer (Resource Descriptor)
    AutonomousActivityWindowRegister,        // Buffer (Resource Descriptor)
    EnergyPerformancePreferenceRegister,     // Buffer (Resource Descriptor)
    ReferencePerformance                     // Integer or Buffer (Resource Descriptor)
    LowestFrequency,                         // Integer or Buffer (Resource Descriptor)
    NominalFrequency                         // Integer or Buffer (Resource Descriptor)
  })

  If resource buffer is NULL then integer will be used.

  Cf. ACPI 6.4, s8.4.7.1 _CPC (Continuous Performance Control)

  @ingroup CodeGenApis

  @param [in]  CpcInfo               CpcInfo object
  @param [in]  ParentNode            If provided, set ParentNode as the parent
                                     of the node created.
  @param [out] NewCpcNode            If success and provided, contains the created node.

  @retval EFI_SUCCESS             The function completed successfully.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlCreateCpcNode (
  IN  AML_CPC_INFO            *CpcInfo,
  IN  AML_NODE_HANDLE         ParentNode   OPTIONAL,
  OUT AML_OBJECT_NODE_HANDLE  *NewCpcNode   OPTIONAL
  );

/** AML code generation to add a NameString to the package in a named node.


  @param [in]  NameString     NameString to add
  @param [in]  NamedNode      Node to add the string to the included package.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
**/
EFI_STATUS
EFIAPI
AmlAddNameStringToNamedPackage (
  IN CHAR8                   *NameString,
  IN AML_OBJECT_NODE_HANDLE  NamedNode
  );

/** AML code generation to invoke/call another method.

  This method is a subset implementation of MethodInvocation
  defined in the ACPI specification 6.5,
  section 20.2.5 "Term Objects Encoding".
  Added integer, string, ArgObj and LocalObj support.

  Example 1:
    AmlCodeGenInvokeMethod ("MET0", 0, NULL, ParentNode);
    is equivalent to the following ASL code:
      MET0 ();

  Example 2:
    AML_METHOD_PARAM  Param[4];
    Param[0].Data.Integer = 0x100;
    Param[0].Type = AmlMethodParamTypeInteger;
    Param[1].Data.Buffer = "TEST";
    Param[1].Type = AmlMethodParamTypeString;
    Param[2].Data.Arg = 0;
    Param[2].Type = AmlMethodParamTypeArg;
    Param[3].Data.Local = 2;
    Param[3].Type = AmlMethodParamTypeLocal;
    AmlCodeGenInvokeMethod ("MET0", 4, Param, ParentNode);

    is equivalent to the following ASL code:
      MET0 (0x100, "TEST", Arg0, Local2);

  Example 3:
    AML_METHOD_PARAM  Param[2];
    Param[0].Data.Arg = 0;
    Param[0].Type = AmlMethodParamTypeArg;
    Param[1].Data.Integer = 0x100;
    Param[1].Type = AmlMethodParamTypeInteger;
    AmlCodeGenMethodRetNameString ("MET2", NULL, 2, TRUE, 0, ParentNode, &MethodNode);
    AmlCodeGenInvokeMethod ("MET3", 2, Param, MethodNode);

    is equivalent to the following ASL code:
    Method (MET2, 2, Serialized)
    {
      MET3 (Arg0, 0x0100)
    }

  @param [in] MethodNameString  The method name to be called or invoked.
  @param [in] NumArgs           Number of arguments to be passed,
                                0 to 7 are permissible values.
  @param [in] Parameters        Contains the parameter data.
  @param [in] ParentNode        The parent node to which the method invocation
                                nodes are attached.

  @retval EFI_SUCCESS             Success.
  @retval EFI_INVALID_PARAMETER   Invalid parameter.
  @retval EFI_OUT_OF_RESOURCES    Failed to allocate memory.
 **/
EFI_STATUS
EFIAPI
AmlCodeGenInvokeMethod (
  IN  CONST CHAR8             *MethodNameString,
  IN        UINT8             NumArgs,
  IN        AML_METHOD_PARAM  *Parameters   OPTIONAL,
  IN        AML_NODE_HANDLE   ParentNode
  );

#endif // AML_LIB_H_