STM32_USB_Device_Library
Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "usbd_dfu.h"
#include "usbd_ctlreq.h"
USBD_DFU
USBD_DFU_CfgDesc
USBD_DFU_DeviceQualifierDesc
USBD_DFU_Init(USBD_HandleTypeDef *, uint8_t)
USBD_DFU_DeInit(USBD_HandleTypeDef *, uint8_t)
USBD_DFU_Setup(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_DFU_GetCfgDesc(uint16_t *)
USBD_DFU_EP0_RxReady(USBD_HandleTypeDef *)
USBD_DFU_EP0_TxReady(USBD_HandleTypeDef *)
USBD_DFU_SOF(USBD_HandleTypeDef *)
USBD_DFU_GetDeviceQualifierDesc(uint16_t *)
USBD_DFU_GetUsrStringDesc(USBD_HandleTypeDef *, uint8_t, uint16_t *)
USBD_DFU_RegisterMedia(USBD_HandleTypeDef *, USBD_DFU_MediaTypeDef *)
DFU_Detach(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
DFU_Download(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
DFU_Upload(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
DFU_GetStatus(USBD_HandleTypeDef *)
DFU_ClearStatus(USBD_HandleTypeDef *)
DFU_GetState(USBD_HandleTypeDef *)
DFU_Abort(USBD_HandleTypeDef *)
DFU_Leave(USBD_HandleTypeDef *)
USBD_DFU_GetDfuFuncDesc(uint8_t *)
Files
loading...
SourceVuSTM32 Libraries and SamplesSTM32_USB_Device_LibraryClass/DFU/Src/usbd_dfu.c
 
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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/** ****************************************************************************** * @file usbd_dfu.c * @author MCD Application Team * @brief This file provides the DFU core functions. * ****************************************************************************** * @attention * * Copyright (c) 2015 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** * @verbatim * * =================================================================== * DFU Class Driver Description * =================================================================== * This driver manages the DFU class V1.1 following the "Device Class Specification for * Device Firmware Upgrade Version 1.1 Aug 5, 2004". * This driver implements the following aspects of the specification: * - Device descriptor management * - Configuration descriptor management * - Enumeration as DFU device (in DFU mode only) * - Requests management (supporting ST DFU sub-protocol) * - Memory operations management (Download/Upload/Erase/Detach/GetState/GetStatus) * - DFU state machine implementation. * * @note * ST DFU sub-protocol is compliant with DFU protocol and use sub-requests to manage * memory addressing, commands processing, specific memories operations (ie. Erase) ... * As required by the DFU specification, only endpoint 0 is used in this application. * Other endpoints and functions may be added to the application (ie. DFU ...) * * These aspects may be enriched or modified for a specific user application. * * This driver doesn't implement the following aspects of the specification * (but it is possible to manage these features with some modifications on this driver): * - Manifestation Tolerant mode * * @endverbatim * ****************************************************************************** *//* ... */ /* BSPDependencies - "stm32xxxxx_{eval}{discovery}{nucleo_144}.c" - "stm32xxxxx_{eval}{discovery}_io.c" EndBSPDependencies *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "usbd_dfu.h" #include "usbd_ctlreq.h" /** @addtogroup STM32_USB_DEVICE_LIBRARY * @{ *//* ... */ /** @defgroup USBD_DFU * @brief usbd core module * @{ *//* ... */ /** @defgroup USBD_DFU_Private_TypesDefinitions * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_DFU_Private_Defines * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_DFU_Private_Macros * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_DFU_Private_FunctionPrototypes * @{ *//* ... */ static uint8_t USBD_DFU_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx); static uint8_t USBD_DFU_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx); static uint8_t USBD_DFU_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static uint8_t USBD_DFU_EP0_RxReady(USBD_HandleTypeDef *pdev); static uint8_t USBD_DFU_EP0_TxReady(USBD_HandleTypeDef *pdev); static uint8_t USBD_DFU_SOF(USBD_HandleTypeDef *pdev); #ifndef USE_USBD_COMPOSITE static uint8_t *USBD_DFU_GetCfgDesc(uint16_t *length); static uint8_t *USBD_DFU_GetDeviceQualifierDesc(uint16_t *length);/* ... */ #endif /* USE_USBD_COMPOSITE */ #if (USBD_SUPPORT_USER_STRING_DESC == 1U) static uint8_t *USBD_DFU_GetUsrStringDesc(USBD_HandleTypeDef *pdev, uint8_t index, uint16_t *length);/* ... */ #endif /* USBD_SUPPORT_USER_STRING_DESC */ static void DFU_Detach(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void DFU_Download(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void DFU_Upload(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void DFU_GetStatus(USBD_HandleTypeDef *pdev); static void DFU_ClearStatus(USBD_HandleTypeDef *pdev); static void DFU_GetState(USBD_HandleTypeDef *pdev); static void DFU_Abort(USBD_HandleTypeDef *pdev); static void DFU_Leave(USBD_HandleTypeDef *pdev); static void *USBD_DFU_GetDfuFuncDesc(uint8_t *pConfDesc); /** * @} *//* ... */ /** @defgroup USBD_DFU_Private_Variables * @{ *//* ... */ USBD_ClassTypeDef USBD_DFU = { USBD_DFU_Init, USBD_DFU_DeInit, USBD_DFU_Setup, USBD_DFU_EP0_TxReady, USBD_DFU_EP0_RxReady, NULL, NULL, USBD_DFU_SOF, NULL, NULL, #ifdef USE_USBD_COMPOSITE NULL, NULL, NULL, NULL,/* ... */ #else USBD_DFU_GetCfgDesc, USBD_DFU_GetCfgDesc, USBD_DFU_GetCfgDesc, USBD_DFU_GetDeviceQualifierDesc,/* ... */ #endif /* USE_USBD_COMPOSITE */ #if (USBD_SUPPORT_USER_STRING_DESC == 1U) USBD_DFU_GetUsrStringDesc #endif /* USBD_SUPPORT_USER_STRING_DESC */ ...}; #ifndef USE_USBD_COMPOSITE /* USB DFU device Configuration Descriptor */ __ALIGN_BEGIN static uint8_t USBD_DFU_CfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_END = { 0x09, /* bLength: Configuration Descriptor size */ USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */ USB_DFU_CONFIG_DESC_SIZ, /* wTotalLength: Bytes returned */ 0x00, 0x01, /* bNumInterfaces: 1 interface */ 0x01, /* bConfigurationValue: Configuration value */ 0x02, /* iConfiguration: Index of string descriptor describing the configuration *//* ... */ #if (USBD_SELF_POWERED == 1U) 0xC0, /* bmAttributes: Bus Powered according to user configuration */ #else 0x80, /* bmAttributes: Bus Powered according to user configuration */ #endif /* USBD_SELF_POWERED */ USBD_MAX_POWER, /* MaxPower (mA) */ /* 09 */ /********** Descriptor of DFU interface 0 Alternate setting 0 **************/ USBD_DFU_IF_DESC(0U), /* This interface is mandatory for all devices */ #if (USBD_DFU_MAX_ITF_NUM > 1U) Descriptor of DFU interface 0 Alternate setting 0 /********** Descriptor of DFU interface 0 Alternate setting 1 **************/ USBD_DFU_IF_DESC(1),/* ... */ #endif /* (USBD_DFU_MAX_ITF_NUM > 1) */ #if (USBD_DFU_MAX_ITF_NUM > 2U) Descriptor of DFU interface 0 Alternate setting 1 /********** Descriptor of DFU interface 0 Alternate setting 2 **************/ USBD_DFU_IF_DESC(2),/* ... */ #endif /* (USBD_DFU_MAX_ITF_NUM > 2) */ #if (USBD_DFU_MAX_ITF_NUM > 3U) Descriptor of DFU interface 0 Alternate setting 2 /********** Descriptor of DFU interface 0 Alternate setting 3 **************/ USBD_DFU_IF_DESC(3),/* ... */ #endif /* (USBD_DFU_MAX_ITF_NUM > 3) */ #if (USBD_DFU_MAX_ITF_NUM > 4U) Descriptor of DFU interface 0 Alternate setting 3 /********** Descriptor of DFU interface 0 Alternate setting 4 **************/ USBD_DFU_IF_DESC(4),/* ... */ #endif /* (USBD_DFU_MAX_ITF_NUM > 4) */ #if (USBD_DFU_MAX_ITF_NUM > 5U) Descriptor of DFU interface 0 Alternate setting 4 /********** Descriptor of DFU interface 0 Alternate setting 5 **************/ USBD_DFU_IF_DESC(5),/* ... */ #endif /* (USBD_DFU_MAX_ITF_NUM > 5) */ #if (USBD_DFU_MAX_ITF_NUM > 6U) #error "ERROR: usbd_dfu_core.c: Modify the file to support more descriptors!" #endif /* (USBD_DFU_MAX_ITF_NUM > 6) */ Descriptor of DFU interface 0 Alternate setting 5 /******************** DFU Functional Descriptor********************/ 0x09, /* blength = 9 Bytes */ DFU_DESCRIPTOR_TYPE, /* DFU Functional Descriptor */ 0x0B, /* bmAttribute: bitCanDnload = 1 (bit 0) bitCanUpload = 1 (bit 1) bitManifestationTolerant = 0 (bit 2) bitWillDetach = 1 (bit 3) Reserved (bit4-6) bitAcceleratedST = 0 (bit 7) *//* ... */ 0xFF, /* DetachTimeOut= 255 ms*/ 0x00, /* WARNING: In DMA mode the multiple MPS packets feature is still not supported ==> In this case, when using DMA USBD_DFU_XFER_SIZE should be set to 64 in usbd_conf.h *//* ... */ TRANSFER_SIZE_BYTES(USBD_DFU_XFER_SIZE), /* TransferSize = 1024 Byte */ 0x1A, /* bcdDFUVersion */ 0x01 DFU Functional Descriptor /***********************************************************/ /* 9*/ ...}; /* USB Standard Device Descriptor */ __ALIGN_BEGIN static uint8_t USBD_DFU_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END = { USB_LEN_DEV_QUALIFIER_DESC, USB_DESC_TYPE_DEVICE_QUALIFIER, 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x01, 0x00, ...};/* ... */ #endif /* USE_USBD_COMPOSITE */ /** * @} *//* ... */ /** @defgroup USBD_DFU_Private_Functions * @{ *//* ... */ /** * @brief USBD_DFU_Init * Initialize the DFU interface * @param pdev: device instance * @param cfgidx: Configuration index * @retval status *//* ... */ static uint8_t USBD_DFU_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx) { UNUSED(cfgidx); USBD_DFU_HandleTypeDef *hdfu; /* Allocate Audio structure */ hdfu = (USBD_DFU_HandleTypeDef *)USBD_malloc(sizeof(USBD_DFU_HandleTypeDef)); if (hdfu == NULL) { pdev->pClassDataCmsit[pdev->classId] = NULL; return (uint8_t)USBD_EMEM; }if (hdfu == NULL) { ... } pdev->pClassDataCmsit[pdev->classId] = (void *)hdfu; pdev->pClassData = pdev->pClassDataCmsit[pdev->classId]; hdfu->alt_setting = 0U; hdfu->data_ptr = USBD_DFU_APP_DEFAULT_ADD; hdfu->wblock_num = 0U; hdfu->wlength = 0U; hdfu->manif_state = DFU_MANIFEST_COMPLETE; hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[0] = DFU_ERROR_NONE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = DFU_STATE_IDLE; hdfu->dev_status[5] = 0U; /* Initialize Hardware layer */ if (((USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId])->Init() != USBD_OK) { return (uint8_t)USBD_FAIL; }if (((USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId])->Init() != USBD_OK) { ... } return (uint8_t)USBD_OK; }{ ... } /** * @brief USBD_DFU_DeInit * De-Initialize the DFU layer * @param pdev: device instance * @param cfgidx: Configuration index * @retval status *//* ... */ static uint8_t USBD_DFU_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx) { UNUSED(cfgidx); USBD_DFU_HandleTypeDef *hdfu; if (pdev->pClassDataCmsit[pdev->classId] == NULL) { return (uint8_t)USBD_EMEM; }if (pdev->pClassDataCmsit[pdev->classId] == NULL) { ... } hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; hdfu->wblock_num = 0U; hdfu->wlength = 0U; hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[0] = DFU_ERROR_NONE; hdfu->dev_status[4] = DFU_STATE_IDLE; /* DeInit physical Interface components and Hardware Layer */ ((USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId])->DeInit(); USBD_free(pdev->pClassDataCmsit[pdev->classId]); pdev->pClassDataCmsit[pdev->classId] = NULL; pdev->pClassData = NULL; return (uint8_t)USBD_OK; }{ ... } /** * @brief USBD_DFU_Setup * Handle the DFU specific requests * @param pdev: instance * @param req: usb requests * @retval status *//* ... */ static uint8_t USBD_DFU_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_StatusTypeDef ret = USBD_OK; uint8_t *pbuf; uint16_t len; uint16_t status_info = 0U; if (hdfu == NULL) { return (uint8_t)USBD_FAIL; }if (hdfu == NULL) { ... } switch (req->bmRequest & USB_REQ_TYPE_MASK) { case USB_REQ_TYPE_CLASS: switch (req->bRequest) { case DFU_DNLOAD: DFU_Download(pdev, req); break; case DFU_DNLOAD: case DFU_UPLOAD: DFU_Upload(pdev, req); break; case DFU_UPLOAD: case DFU_GETSTATUS: DFU_GetStatus(pdev); break; case DFU_GETSTATUS: case DFU_CLRSTATUS: DFU_ClearStatus(pdev); break; case DFU_CLRSTATUS: case DFU_GETSTATE: DFU_GetState(pdev); break; case DFU_GETSTATE: case DFU_ABORT: DFU_Abort(pdev); break; case DFU_ABORT: case DFU_DETACH: DFU_Detach(pdev, req); break; case DFU_DETACH: default: USBD_CtlError(pdev, req); ret = USBD_FAIL; break;default }switch (req->bRequest) { ... } break; case USB_REQ_TYPE_CLASS: case USB_REQ_TYPE_STANDARD: switch (req->bRequest) { case USB_REQ_GET_STATUS: if (pdev->dev_state == USBD_STATE_CONFIGURED) { (void)USBD_CtlSendData(pdev, (uint8_t *)&status_info, 2U); }if (pdev->dev_state == USBD_STATE_CONFIGURED) { ... } else { USBD_CtlError(pdev, req); ret = USBD_FAIL; }else { ... } break; case USB_REQ_GET_STATUS: case USB_REQ_GET_DESCRIPTOR: if ((req->wValue >> 8) == DFU_DESCRIPTOR_TYPE) { pbuf = (uint8_t *)USBD_DFU_GetDfuFuncDesc(pdev->pConfDesc); if (pbuf != NULL) { len = MIN(USB_DFU_DESC_SIZ, req->wLength); (void)USBD_CtlSendData(pdev, pbuf, len); }if (pbuf != NULL) { ... } else { USBD_CtlError(pdev, req); ret = USBD_FAIL; }else { ... } }if ((req->wValue >> 8) == DFU_DESCRIPTOR_TYPE) { ... } break; case USB_REQ_GET_DESCRIPTOR: case USB_REQ_GET_INTERFACE: if (pdev->dev_state == USBD_STATE_CONFIGURED) { (void)USBD_CtlSendData(pdev, (uint8_t *)&hdfu->alt_setting, 1U); }if (pdev->dev_state == USBD_STATE_CONFIGURED) { ... } else { USBD_CtlError(pdev, req); ret = USBD_FAIL; }else { ... } break; case USB_REQ_GET_INTERFACE: case USB_REQ_SET_INTERFACE: if ((uint8_t)(req->wValue) < USBD_DFU_MAX_ITF_NUM) { if (pdev->dev_state == USBD_STATE_CONFIGURED) { hdfu->alt_setting = (uint8_t)(req->wValue); }if (pdev->dev_state == USBD_STATE_CONFIGURED) { ... } else { USBD_CtlError(pdev, req); ret = USBD_FAIL; }else { ... } }if ((uint8_t)(req->wValue) < USBD_DFU_MAX_ITF_NUM) { ... } else { /* Call the error management function (command will be NAKed */ USBD_CtlError(pdev, req); ret = USBD_FAIL; }else { ... } break; case USB_REQ_SET_INTERFACE: case USB_REQ_CLEAR_FEATURE: break; case USB_REQ_CLEAR_FEATURE: default: USBD_CtlError(pdev, req); ret = USBD_FAIL; break;default }switch (req->bRequest) { ... } break; case USB_REQ_TYPE_STANDARD: default: USBD_CtlError(pdev, req); ret = USBD_FAIL; break;default }switch (req->bmRequest & USB_REQ_TYPE_MASK) { ... } return (uint8_t)ret; }{ ... } #ifndef USE_USBD_COMPOSITE /** * @brief USBD_DFU_GetCfgDesc * return configuration descriptor * @param length : pointer data length * @retval pointer to descriptor buffer *//* ... */ static uint8_t *USBD_DFU_GetCfgDesc(uint16_t *length) { *length = (uint16_t)sizeof(USBD_DFU_CfgDesc); return USBD_DFU_CfgDesc; }{ ... } #endif/* ... */ /* USE_USBD_COMPOSITE */ /** * @brief USBD_DFU_EP0_RxReady * handle EP0 Rx Ready event * @param pdev: device instance * @retval status *//* ... */ static uint8_t USBD_DFU_EP0_RxReady(USBD_HandleTypeDef *pdev) { UNUSED(pdev); return (uint8_t)USBD_OK; }{ ... } /** * @brief USBD_DFU_EP0_TxReady * handle EP0 TRx Ready event * @param pdev: device instance * @retval status *//* ... */ static uint8_t USBD_DFU_EP0_TxReady(USBD_HandleTypeDef *pdev) { USBD_SetupReqTypedef req; uint32_t app_addr_ptr; uint32_t addr; USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) uint32_t VendorStatus = 0U; #endif /* USBD_DFU_VENDOR_CMD_ENABLED */ if (hdfu == NULL) { return (uint8_t)USBD_FAIL; }if (hdfu == NULL) { ... } if (hdfu->dev_state == DFU_STATE_DNLOAD_BUSY) { /* Decode the Special Command */ if (hdfu->wblock_num == 0U) { if (hdfu->wlength == 1U) { if (hdfu->buffer.d8[0] == DFU_CMD_GETCOMMANDS) { /* Nothing to do */ }if (hdfu->buffer.d8[0] == DFU_CMD_GETCOMMANDS) { ... } #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) else { /* Vendor specific DFU CMD */ if (DfuInterface->VendorDownloadCMD(hdfu->buffer.d8, hdfu->wblock_num, hdfu->wlength, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->VendorDownloadCMD(hdfu->buffer.d8, hdfu->wblock_num, hdfu->wlength, &VendorStatus) != USBD_OK) { ... } }else { ... } /* ... */#endif /* USBD_DFU_VENDOR_CMD_ENABLED */ }if (hdfu->wlength == 1U) { ... } else if (hdfu->wlength == 5U) { if (hdfu->buffer.d8[0] == DFU_CMD_SETADDRESSPOINTER) { #if (USBD_DFU_VENDOR_CHECK_ENABLED == 1U) if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_SETADDRESSPOINTER, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_SETADDRESSPOINTER, &VendorStatus) != USBD_OK) { ... } /* ... */#endif /* USBD_DFU_VENDOR_CHECK_ENABLED */ hdfu->data_ptr = hdfu->buffer.d8[1]; hdfu->data_ptr += (uint32_t)hdfu->buffer.d8[2] << 8; hdfu->data_ptr += (uint32_t)hdfu->buffer.d8[3] << 16; hdfu->data_ptr += (uint32_t)hdfu->buffer.d8[4] << 24; }if (hdfu->buffer.d8[0] == DFU_CMD_SETADDRESSPOINTER) { ... } else if (hdfu->buffer.d8[0] == DFU_CMD_ERASE) { #if (USBD_DFU_VENDOR_CHECK_ENABLED == 1U) if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_DOWNLOAD, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_DOWNLOAD, &VendorStatus) != USBD_OK) { ... } /* ... */#endif /* USBD_DFU_VENDOR_CHECK_ENABLED */ app_addr_ptr = hdfu->buffer.d8[1]; app_addr_ptr += (uint32_t)hdfu->buffer.d8[2] << 8; app_addr_ptr += (uint32_t)hdfu->buffer.d8[3] << 16; app_addr_ptr += (uint32_t)hdfu->buffer.d8[4] << 24; if (DfuInterface->Erase(app_addr_ptr) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = DFU_ERROR_VENDOR; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->Erase(app_addr_ptr) != USBD_OK) { ... } }else if (hdfu->buffer.d8[0] == DFU_CMD_ERASE) { ... } #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) else { /* Vendor specific DFU CMD */ if (DfuInterface->VendorDownloadCMD(hdfu->buffer.d8, hdfu->wblock_num, hdfu->wlength, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->VendorDownloadCMD(hdfu->buffer.d8, hdfu->wblock_num, hdfu->wlength, &VendorStatus) != USBD_OK) { ... } }else { ... } /* ... */#else else { return (uint8_t)USBD_FAIL; }else { ... } /* ... */#endif /* USBD_DFU_VENDOR_CMD_ENABLED */ }else if (hdfu->wlength == 5U) { ... } else { /* Reset the global length and block number */ hdfu->wlength = 0U; hdfu->wblock_num = 0U; /* Call the error management function (command will be NAKed) */ req.bmRequest = 0U; req.wLength = 1U; USBD_CtlError(pdev, &req); }else { ... } }if (hdfu->wblock_num == 0U) { ... } /* Regular Download Command */ else { if (hdfu->wblock_num > 1U) { #if (USBD_DFU_VENDOR_CHECK_ENABLED == 1U) if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_DOWNLOAD, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_DOWNLOAD, &VendorStatus) != USBD_OK) { ... } /* ... */#endif /* USBD_DFU_VENDOR_CHECK_ENABLED */ /* Decode the required address */ addr = ((hdfu->wblock_num - 2U) * USBD_DFU_XFER_SIZE) + hdfu->data_ptr; /* Perform the write operation */ if (DfuInterface->Write(hdfu->buffer.d8, (uint8_t *)addr, hdfu->wlength) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = DFU_ERROR_VENDOR; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return (uint8_t)USBD_FAIL; }if (DfuInterface->Write(hdfu->buffer.d8, (uint8_t *)addr, hdfu->wlength) != USBD_OK) { ... } }if (hdfu->wblock_num > 1U) { ... } }else { ... } /* Reset the global length and block number */ hdfu->wlength = 0U; hdfu->wblock_num = 0U; /* Update the state machine */ hdfu->dev_state = DFU_STATE_DNLOAD_SYNC; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }if (hdfu->dev_state == DFU_STATE_DNLOAD_BUSY) { ... } else if (hdfu->dev_state == DFU_STATE_MANIFEST)/* Manifestation in progress */ { /* Start leaving DFU mode */ DFU_Leave(pdev); ...} else { return (uint8_t)USBD_FAIL; }else { ... } return (uint8_t)USBD_OK; }{ ... } /** * @brief USBD_DFU_SOF * handle SOF event * @param pdev: device instance * @retval status *//* ... */ static uint8_t USBD_DFU_SOF(USBD_HandleTypeDef *pdev) { UNUSED(pdev); return (uint8_t)USBD_OK; }{ ... } #ifndef USE_USBD_COMPOSITE /** * @brief DeviceQualifierDescriptor * return Device Qualifier descriptor * @param length : pointer data length * @retval pointer to descriptor buffer *//* ... */ static uint8_t *USBD_DFU_GetDeviceQualifierDesc(uint16_t *length) { *length = (uint16_t)sizeof(USBD_DFU_DeviceQualifierDesc); return USBD_DFU_DeviceQualifierDesc; }{ ... } #endif/* ... */ /* USE_USBD_COMPOSITE */ /** * @brief USBD_DFU_GetUsrStringDesc * Manages the transfer of memory interfaces string descriptors. * @param pdev: device instance * @param index: descriptor index * @param length : pointer data length * @retval pointer to the descriptor table or NULL if the descriptor is not supported. *//* ... */ #if (USBD_SUPPORT_USER_STRING_DESC == 1U) static uint8_t *USBD_DFU_GetUsrStringDesc(USBD_HandleTypeDef *pdev, uint8_t index, uint16_t *length) { static uint8_t USBD_StrDesc[255]; USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; /* Check if the requested string interface is supported */ if (index <= (USBD_IDX_INTERFACE_STR + USBD_DFU_MAX_ITF_NUM)) { USBD_GetString((uint8_t *)DfuInterface->pStrDesc, USBD_StrDesc, length); return USBD_StrDesc; }if (index <= (USBD_IDX_INTERFACE_STR + USBD_DFU_MAX_ITF_NUM)) { ... } else { /* Not supported Interface Descriptor index */ *length = 0U; return NULL; }else { ... } }{ ... } /* ... */#endif /* USBD_SUPPORT_USER_STRING_DESC */ /** * @brief USBD_MSC_RegisterStorage * @param pdev: device instance * @param fops: storage callback * @retval status *//* ... */ uint8_t USBD_DFU_RegisterMedia(USBD_HandleTypeDef *pdev, USBD_DFU_MediaTypeDef *fops) { if (fops == NULL) { return (uint8_t)USBD_FAIL; }if (fops == NULL) { ... } pdev->pUserData[pdev->classId] = fops; return (uint8_t)USBD_OK; }{ ... } /****************************************************************************** DFU Class requests management ******************************************************************************//* ... */ /** * @brief DFU_Detach * Handles the DFU DETACH request. * @param pdev: device instance * @param req: pointer to the request structure. * @retval None. *//* ... */ static void DFU_Detach(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_DFUFuncDescTypeDef *pDfuFunc = (USBD_DFUFuncDescTypeDef *)USBD_DFU_GetDfuFuncDesc(pdev->pConfDesc); if ((hdfu == NULL) || (pDfuFunc == NULL)) { return; }if ((hdfu == NULL) || (pDfuFunc == NULL)) { ... } if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_SYNC) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_MANIFEST_SYNC) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[0] = DFU_ERROR_NONE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; /*bwPollTimeout=0ms*/ hdfu->dev_status[4] = hdfu->dev_state; hdfu->dev_status[5] = 0U; /*iString*/ hdfu->wblock_num = 0U; hdfu->wlength = 0U; }if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_SYNC) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_MANIFEST_SYNC) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { ... } /* Check the detach capability in the DFU functional descriptor */ if ((pDfuFunc->bmAttributes & DFU_DETACH_MASK) != 0U) { /* Perform an Attach-Detach operation on USB bus */ (void)USBD_Stop(pdev); (void)USBD_Start(pdev); }if ((pDfuFunc->bmAttributes & DFU_DETACH_MASK) != 0U) { ... } else { /* Wait for the period of time specified in Detach request */ USBD_Delay((uint32_t)req->wValue); }else { ... } }{ ... } /** * @brief DFU_Download * Handles the DFU DNLOAD request. * @param pdev: device instance * @param req: pointer to the request structure * @retval None *//* ... */ static void DFU_Download(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; uint32_t VendorStatus = 0U;/* ... */ #endif /* USBD_DFU_VENDOR_CMD_ENABLED */ if (hdfu == NULL) { return; }if (hdfu == NULL) { ... } /* Data setup request */ if (req->wLength > 0U) { if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE)) { /* Update the global length and block number */ hdfu->wblock_num = req->wValue; hdfu->wlength = MIN(req->wLength, USBD_DFU_XFER_SIZE); /* Update the state machine */ hdfu->dev_state = DFU_STATE_DNLOAD_SYNC; hdfu->dev_status[4] = hdfu->dev_state; /* Prepare the reception of the buffer over EP0 */ (void)USBD_CtlPrepareRx(pdev, (uint8_t *)hdfu->buffer.d8, hdfu->wlength); }if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE)) { ... } /* Unsupported state */ else { /* Call the error management function (command will be NAKed */ USBD_CtlError(pdev, req); }else { ... } }if (req->wLength > 0U) { ... } /* 0 Data DNLOAD request */ else { /* End of DNLOAD operation */ if ((hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_IDLE)) { #if (USBD_DFU_VENDOR_CHECK_ENABLED == 1U) if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_SETADDRESSPOINTER, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }if (DfuInterface->VendorCheck(hdfu->buffer.d8, IS_DFU_SETADDRESSPOINTER, &VendorStatus) != USBD_OK) { ... } else #endif /* USBD_DFU_VENDOR_CHECK_ENABLED */ { hdfu->manif_state = DFU_MANIFEST_IN_PROGRESS; hdfu->dev_state = DFU_STATE_MANIFEST_SYNC; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }else { ... } }if ((hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_IDLE)) { ... } else { /* Call the error management function (command will be NAKed */ USBD_CtlError(pdev, req); }else { ... } }else { ... } }{ ... } /** * @brief DFU_Upload * Handles the DFU UPLOAD request. * @param pdev: instance * @param req: pointer to the request structure * @retval status *//* ... */ static void DFU_Upload(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; uint8_t *phaddr; uint32_t addr; uint32_t CmdLength; #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) uint32_t VendorStatus = 0U; uint8_t VendorCmdLength = 0U; uint8_t VendorCmdBuffer[DFU_VENDOR_CMD_MAX]; uint8_t idx;/* ... */ #endif /* USBD_DFU_VENDOR_CMD_ENABLED */ if (hdfu == NULL) { return; }if (hdfu == NULL) { ... } /* Data setup request */ if (req->wLength > 0U) { if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { /* Update the global length and block number */ hdfu->wblock_num = req->wValue; hdfu->wlength = MIN(req->wLength, USBD_DFU_XFER_SIZE); /* DFU Get Command */ if (hdfu->wblock_num == 0U) { /* Update the state machine */ hdfu->dev_state = (hdfu->wlength > 3U) ? DFU_STATE_IDLE : DFU_STATE_UPLOAD_IDLE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; /* Store the values of all supported commands */ hdfu->buffer.d8[0] = DFU_CMD_GETCOMMANDS; hdfu->buffer.d8[1] = DFU_CMD_SETADDRESSPOINTER; hdfu->buffer.d8[2] = DFU_CMD_ERASE; CmdLength = 3U; #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) if (DfuInterface->GetVendorCMD != NULL) { (void)DfuInterface->GetVendorCMD(VendorCmdBuffer, (uint8_t *)&VendorCmdLength); for (idx = 0U; idx < MIN(VendorCmdLength, DFU_VENDOR_CMD_MAX); idx++) { hdfu->buffer.d8[idx + 3U] = VendorCmdBuffer[idx]; }for (idx = 0U; idx < MIN(VendorCmdLength, DFU_VENDOR_CMD_MAX); idx++) { ... } CmdLength += MIN(VendorCmdLength, DFU_VENDOR_CMD_MAX); }if (DfuInterface->GetVendorCMD != NULL) { ... } /* ... */#endif /* USBD_DFU_VENDOR_CMD_ENABLED */ /* Send the status data over EP0 */ (void)USBD_CtlSendData(pdev, (uint8_t *)(&(hdfu->buffer.d8[0])), CmdLength); }if (hdfu->wblock_num == 0U) { ... } else if (hdfu->wblock_num > 1U) { hdfu->dev_state = DFU_STATE_UPLOAD_IDLE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; #if (USBD_DFU_VENDOR_CMD_ENABLED == 1U) /* Vendor specific DFU CMD */ if (DfuInterface->VendorUploadCMD(hdfu->data_ptr, hdfu->wblock_num, &VendorStatus) != USBD_OK) { /* Update the state machine */ hdfu->dev_state = DFU_ERROR_STALLEDPKT; hdfu->dev_status[0] = (uint8_t)VendorStatus; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; /* Call the error management function (command will be NAKed) */ USBD_CtlError(pdev, req); }if (DfuInterface->VendorUploadCMD(hdfu->data_ptr, hdfu->wblock_num, &VendorStatus) != USBD_OK) { ... } if (VendorStatus == IS_DFU_PHY_ADDRESS)/* ... */ #endif /* USBD_DFU_VENDOR_CMD_ENABLED */ { addr = ((hdfu->wblock_num - 2U) * USBD_DFU_XFER_SIZE) + hdfu->data_ptr; /* Return the physical address where data are stored */ phaddr = DfuInterface->Read((uint8_t *)addr, hdfu->buffer.d8, hdfu->wlength); if (phaddr == NULL) { hdfu->dev_state = DFU_ERROR_STALLEDPKT; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; /* Call the error management function (command will be NAKed) */ USBD_CtlError(pdev, req); }if (phaddr == NULL) { ... } else { /* Send the status data over EP0 */ (void)USBD_CtlSendData(pdev, phaddr, hdfu->wlength); }else { ... } ...} }else if (hdfu->wblock_num > 1U) { ... } else /* unsupported hdfu->wblock_num */ { hdfu->dev_state = DFU_ERROR_STALLEDPKT; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; /* Call the error management function (command will be NAKed) */ USBD_CtlError(pdev, req); }else { ... } }if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { ... } /* Unsupported state */ else { hdfu->wlength = 0U; hdfu->wblock_num = 0U; /* Call the error management function (command will be NAKed) */ USBD_CtlError(pdev, req); }else { ... } }if (req->wLength > 0U) { ... } /* No Data setup request */ else { hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }else { ... } }{ ... } /** * @brief DFU_GetStatus * Handles the DFU GETSTATUS request. * @param pdev: instance * @retval status *//* ... */ static void DFU_GetStatus(USBD_HandleTypeDef *pdev) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; USBD_DFUFuncDescTypeDef *pDfuFunc = (USBD_DFUFuncDescTypeDef *)USBD_DFU_GetDfuFuncDesc(pdev->pConfDesc); if ((hdfu == NULL) || (DfuInterface == NULL) || (pDfuFunc == NULL)) { return; }if ((hdfu == NULL) || (DfuInterface == NULL) || (pDfuFunc == NULL)) { ... } switch (hdfu->dev_state) { case DFU_STATE_DNLOAD_SYNC: if (hdfu->wlength != 0U) { hdfu->dev_state = DFU_STATE_DNLOAD_BUSY; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; if ((hdfu->wblock_num == 0U) && (hdfu->buffer.d8[0] == DFU_CMD_ERASE)) { DfuInterface->GetStatus(hdfu->data_ptr, DFU_MEDIA_ERASE, hdfu->dev_status); }if ((hdfu->wblock_num == 0U) && (hdfu->buffer.d8[0] == DFU_CMD_ERASE)) { ... } else { DfuInterface->GetStatus(hdfu->data_ptr, DFU_MEDIA_PROGRAM, hdfu->dev_status); }else { ... } }if (hdfu->wlength != 0U) { ... } else /* (hdfu->wlength == 0U) */ { hdfu->dev_state = DFU_STATE_DNLOAD_IDLE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }else { ... } break; case DFU_STATE_DNLOAD_SYNC: case DFU_STATE_MANIFEST_SYNC: if (hdfu->manif_state == DFU_MANIFEST_IN_PROGRESS) { hdfu->dev_state = DFU_STATE_MANIFEST; hdfu->dev_status[1] = 1U; /* bwPollTimeout = 1ms */ hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }if (hdfu->manif_state == DFU_MANIFEST_IN_PROGRESS) { ... } else { if ((hdfu->manif_state == DFU_MANIFEST_COMPLETE) && ((pDfuFunc->bmAttributes & DFU_MANIFEST_MASK) != 0U)) { hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; }if ((hdfu->manif_state == DFU_MANIFEST_COMPLETE) && ((pDfuFunc->bmAttributes & DFU_MANIFEST_MASK) != 0U)) { ... } }else { ... } break; case DFU_STATE_MANIFEST_SYNC: default: break;default }switch (hdfu->dev_state) { ... } /* Send the status data over EP0 */ (void)USBD_CtlSendData(pdev, (uint8_t *)(&(hdfu->dev_status[0])), 6U); }{ ... } /** * @brief DFU_ClearStatus * Handles the DFU CLRSTATUS request. * @param pdev: device instance * @retval status *//* ... */ static void DFU_ClearStatus(USBD_HandleTypeDef *pdev) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; if (hdfu == NULL) { return; }if (hdfu == NULL) { ... } if (hdfu->dev_state == DFU_STATE_ERROR) { hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[0] = DFU_ERROR_NONE; /* bStatus */ hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; /* bwPollTimeout=0ms */ hdfu->dev_status[4] = hdfu->dev_state; /* bState */ hdfu->dev_status[5] = 0U; /* iString */ }if (hdfu->dev_state == DFU_STATE_ERROR) { ... } else { /* State Error */ hdfu->dev_state = DFU_STATE_ERROR; hdfu->dev_status[0] = DFU_ERROR_UNKNOWN; /* bStatus */ hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; /* bwPollTimeout=0ms */ hdfu->dev_status[4] = hdfu->dev_state; /* bState */ hdfu->dev_status[5] = 0U; /* iString */ }else { ... } }{ ... } /** * @brief DFU_GetState * Handles the DFU GETSTATE request. * @param pdev: device instance * @retval None *//* ... */ static void DFU_GetState(USBD_HandleTypeDef *pdev) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; if (hdfu == NULL) { return; }if (hdfu == NULL) { ... } /* Return the current state of the DFU interface */ (void)USBD_CtlSendData(pdev, &hdfu->dev_state, 1U); }{ ... } /** * @brief DFU_Abort * Handles the DFU ABORT request. * @param pdev: device instance * @retval None *//* ... */ static void DFU_Abort(USBD_HandleTypeDef *pdev) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; if (hdfu == NULL) { return; }if (hdfu == NULL) { ... } if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_SYNC) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_MANIFEST_SYNC) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { hdfu->dev_state = DFU_STATE_IDLE; hdfu->dev_status[0] = DFU_ERROR_NONE; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; /* bwPollTimeout=0ms */ hdfu->dev_status[4] = hdfu->dev_state; hdfu->dev_status[5] = 0U; /* iString */ hdfu->wblock_num = 0U; hdfu->wlength = 0U; }if ((hdfu->dev_state == DFU_STATE_IDLE) || (hdfu->dev_state == DFU_STATE_DNLOAD_SYNC) || (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE) || (hdfu->dev_state == DFU_STATE_MANIFEST_SYNC) || (hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) { ... } }{ ... } /** * @brief DFU_Leave * Handles the sub-protocol DFU leave DFU mode request (leaves DFU mode * and resets device to jump to user loaded code). * @param pdev: device instance * @retval None *//* ... */ static void DFU_Leave(USBD_HandleTypeDef *pdev) { USBD_DFU_HandleTypeDef *hdfu = (USBD_DFU_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; USBD_DFU_MediaTypeDef *DfuInterface = (USBD_DFU_MediaTypeDef *)pdev->pUserData[pdev->classId]; USBD_DFUFuncDescTypeDef *pDfuFunc = (USBD_DFUFuncDescTypeDef *)USBD_DFU_GetDfuFuncDesc(pdev->pConfDesc); if ((hdfu == NULL) || (DfuInterface == NULL) || (pDfuFunc == NULL)) { return; }if ((hdfu == NULL) || (DfuInterface == NULL) || (pDfuFunc == NULL)) { ... } hdfu->manif_state = DFU_MANIFEST_COMPLETE; if ((pDfuFunc->bmAttributes & DFU_MANIFEST_MASK) != 0U) { hdfu->dev_state = DFU_STATE_MANIFEST_SYNC; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; return; }if ((pDfuFunc->bmAttributes & DFU_MANIFEST_MASK) != 0U) { ... } else { hdfu->dev_state = DFU_STATE_MANIFEST_WAIT_RESET; hdfu->dev_status[1] = 0U; hdfu->dev_status[2] = 0U; hdfu->dev_status[3] = 0U; hdfu->dev_status[4] = hdfu->dev_state; /* Disconnect the USB device */ (void)USBD_Stop(pdev); #if (USBD_DFU_VENDOR_EXIT_ENABLED == 1U) /* Jump should be ensured by user application */ DfuInterface->LeaveDFU(hdfu->data_ptr);/* ... */ #else /* Generate system reset to allow jumping to the user code */ NVIC_SystemReset();/* ... */ #endif /* USBD_DFU_VENDOR_EXIT_ENABLED */ /* The next instructions will not be reached (system reset) */ }else { ... } }{ ... } /** * @brief USBD_DFU_GetDfuFuncDesc * This function return the DFU descriptor * @param pdev: device instance * @param pConfDesc: pointer to Bos descriptor * @retval pointer to the DFU descriptor *//* ... */ static void *USBD_DFU_GetDfuFuncDesc(uint8_t *pConfDesc) { USBD_ConfigDescTypeDef *desc = (USBD_ConfigDescTypeDef *)(void *)pConfDesc; USBD_DescHeaderTypeDef *pdesc = (USBD_DescHeaderTypeDef *)(void *)pConfDesc; uint8_t *pDfuDesc = NULL; uint16_t ptr; if (desc->wTotalLength > desc->bLength) { ptr = desc->bLength; while (ptr < desc->wTotalLength) { pdesc = USBD_GetNextDesc((uint8_t *)pdesc, &ptr); if (pdesc->bDescriptorType == DFU_DESCRIPTOR_TYPE) { pDfuDesc = (uint8_t *)pdesc; break; }if (pdesc->bDescriptorType == DFU_DESCRIPTOR_TYPE) { ... } }while (ptr < desc->wTotalLength) { ... } }if (desc->wTotalLength > desc->bLength) { ... } return pDfuDesc; }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ Includes
Details
Show:
from
Types: Columns:
This file uses the notable symbols shown below. Click anywhere in the file to view more details.