STM32_USB_Host_Library
Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "usbh_msc.h"
#include "usbh_msc_bot.h"
#include "usbh_msc_scsi.h"
USBH_msc
USBH_MSC_InterfaceInit(USBH_HandleTypeDef *)
USBH_MSC_InterfaceDeInit(USBH_HandleTypeDef *)
USBH_MSC_ClassRequest(USBH_HandleTypeDef *)
USBH_MSC_Process(USBH_HandleTypeDef *)
USBH_MSC_SOFProcess(USBH_HandleTypeDef *)
USBH_MSC_RdWrProcess(USBH_HandleTypeDef *, uint8_t)
USBH_MSC_IsReady(USBH_HandleTypeDef *)
USBH_MSC_GetMaxLUN(USBH_HandleTypeDef *)
USBH_MSC_UnitIsReady(USBH_HandleTypeDef *, uint8_t)
USBH_MSC_GetLUNInfo(USBH_HandleTypeDef *, uint8_t, MSC_LUNTypeDef *)
USBH_MSC_Read(USBH_HandleTypeDef *, uint8_t, uint32_t, uint8_t *, uint32_t)
USBH_MSC_Write(USBH_HandleTypeDef *, uint8_t, uint32_t, uint8_t *, uint32_t)
Files
loading...
CodeScopeSTM32 Libraries and SamplesSTM32_USB_Host_LibraryClass/MSC/Src/usbh_msc.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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/** ****************************************************************************** * @file usbh_msc.c * @author MCD Application Team * @brief This file implements the MSC class driver 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 * * =================================================================== * MSC Class Description * =================================================================== * This module manages the MSC class V1.0 following the "Universal * Serial Bus Mass Storage Class (MSC) Bulk-Only Transport (BOT) Version 1.0 * Sep. 31, 1999". * This driver implements the following aspects of the specification: * - Bulk-Only Transport protocol * - Subclass : SCSI transparent command set (ref. SCSI Primary Commands - 3 (SPC-3)) * * @endverbatim * ****************************************************************************** *//* ... */ /* BSPDependencies - "stm32xxxxx_{eval}{discovery}{nucleo_144}.c" - "stm32xxxxx_{eval}{discovery}_io.c" - "stm32xxxxx_{eval}{discovery}{adafruit}_lcd.c" - "stm32xxxxx_{eval}{discovery}_sdram.c" EndBSPDependencies *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "usbh_msc.h" #include "usbh_msc_bot.h" #include "usbh_msc_scsi.h" /** @addtogroup USBH_LIB * @{ *//* ... */ /** @addtogroup USBH_CLASS * @{ *//* ... */ /** @addtogroup USBH_MSC_CLASS * @{ *//* ... */ /** @defgroup USBH_MSC_CORE * @brief This file includes the mass storage related functions * @{ *//* ... */ /** @defgroup USBH_MSC_CORE_Private_TypesDefinitions * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Private_Defines * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Private_Macros * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Private_Variables * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Private_FunctionPrototypes * @{ *//* ... */ static USBH_StatusTypeDef USBH_MSC_InterfaceInit(USBH_HandleTypeDef *phost); static USBH_StatusTypeDef USBH_MSC_InterfaceDeInit(USBH_HandleTypeDef *phost); static USBH_StatusTypeDef USBH_MSC_Process(USBH_HandleTypeDef *phost); static USBH_StatusTypeDef USBH_MSC_ClassRequest(USBH_HandleTypeDef *phost); static USBH_StatusTypeDef USBH_MSC_SOFProcess(USBH_HandleTypeDef *phost); static USBH_StatusTypeDef USBH_MSC_RdWrProcess(USBH_HandleTypeDef *phost, uint8_t lun); USBH_ClassTypeDef USBH_msc = { "MSC", USB_MSC_CLASS, USBH_MSC_InterfaceInit, USBH_MSC_InterfaceDeInit, USBH_MSC_ClassRequest, USBH_MSC_Process, USBH_MSC_SOFProcess, NULL, ...}; /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Exported_Variables * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBH_MSC_CORE_Private_Functions * @{ *//* ... */ /** * @brief USBH_MSC_InterfaceInit * The function init the MSC class. * @param phost: Host handle * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_InterfaceInit(USBH_HandleTypeDef *phost) { USBH_StatusTypeDef status; uint8_t interface; MSC_HandleTypeDef *MSC_Handle; interface = USBH_FindInterface(phost, phost->pActiveClass->ClassCode, MSC_TRANSPARENT, MSC_BOT); if ((interface == 0xFFU) || (interface >= USBH_MAX_NUM_INTERFACES)) /* Not Valid Interface */ { USBH_DbgLog("Cannot Find the interface for %s class.", phost->pActiveClass->Name); return USBH_FAIL; ...} status = USBH_SelectInterface(phost, interface); if (status != USBH_OK) { return USBH_FAIL; }if (status != USBH_OK) { ... } phost->pActiveClass->pData = (MSC_HandleTypeDef *)USBH_malloc(sizeof(MSC_HandleTypeDef)); MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if (MSC_Handle == NULL) { USBH_DbgLog("Cannot allocate memory for MSC Handle"); return USBH_FAIL; }if (MSC_Handle == NULL) { ... } /* Initialize msc handler */ (void)USBH_memset(MSC_Handle, 0, sizeof(MSC_HandleTypeDef)); if ((phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].bEndpointAddress & 0x80U) != 0U) { MSC_Handle->InEp = (phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].bEndpointAddress); MSC_Handle->InEpSize = phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].wMaxPacketSize; }if ((phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].bEndpointAddress & 0x80U) != 0U) { ... } else { MSC_Handle->OutEp = (phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].bEndpointAddress); MSC_Handle->OutEpSize = phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[0].wMaxPacketSize; }else { ... } if ((phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].bEndpointAddress & 0x80U) != 0U) { MSC_Handle->InEp = (phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].bEndpointAddress); MSC_Handle->InEpSize = phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].wMaxPacketSize; }if ((phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].bEndpointAddress & 0x80U) != 0U) { ... } else { MSC_Handle->OutEp = (phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].bEndpointAddress); MSC_Handle->OutEpSize = phost->device.CfgDesc.Itf_Desc[interface].Ep_Desc[1].wMaxPacketSize; }else { ... } MSC_Handle->state = MSC_INIT; MSC_Handle->error = MSC_OK; MSC_Handle->req_state = MSC_REQ_IDLE; MSC_Handle->OutPipe = USBH_AllocPipe(phost, MSC_Handle->OutEp); MSC_Handle->InPipe = USBH_AllocPipe(phost, MSC_Handle->InEp); (void)USBH_MSC_BOT_Init(phost); /* Open the new channels */ if ((MSC_Handle->OutEp != 0U) && (MSC_Handle->OutEpSize != 0U)) { (void)USBH_OpenPipe(phost, MSC_Handle->OutPipe, MSC_Handle->OutEp, phost->device.address, phost->device.speed, USB_EP_TYPE_BULK, MSC_Handle->OutEpSize); }if ((MSC_Handle->OutEp != 0U) && (MSC_Handle->OutEpSize != 0U)) { ... } else { return USBH_NOT_SUPPORTED; }else { ... } if ((MSC_Handle->InEp != 0U) && (MSC_Handle->InEpSize != 0U)) { (void)USBH_OpenPipe(phost, MSC_Handle->InPipe, MSC_Handle->InEp, phost->device.address, phost->device.speed, USB_EP_TYPE_BULK, MSC_Handle->InEpSize); }if ((MSC_Handle->InEp != 0U) && (MSC_Handle->InEpSize != 0U)) { ... } else { return USBH_NOT_SUPPORTED; }else { ... } (void)USBH_LL_SetToggle(phost, MSC_Handle->InPipe, 0U); (void)USBH_LL_SetToggle(phost, MSC_Handle->OutPipe, 0U); return USBH_OK; }{ ... } /** * @brief USBH_MSC_InterfaceDeInit * The function DeInit the Pipes used for the MSC class. * @param phost: Host handle * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_InterfaceDeInit(USBH_HandleTypeDef *phost) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if ((MSC_Handle->OutPipe) != 0U) { (void)USBH_ClosePipe(phost, MSC_Handle->OutPipe); (void)USBH_FreePipe(phost, MSC_Handle->OutPipe); MSC_Handle->OutPipe = 0U; /* Reset the Channel as Free */ }if ((MSC_Handle->OutPipe) != 0U) { ... } if ((MSC_Handle->InPipe != 0U)) { (void)USBH_ClosePipe(phost, MSC_Handle->InPipe); (void)USBH_FreePipe(phost, MSC_Handle->InPipe); MSC_Handle->InPipe = 0U; /* Reset the Channel as Free */ }if ((MSC_Handle->InPipe != 0U)) { ... } if ((phost->pActiveClass->pData) != NULL) { USBH_free(phost->pActiveClass->pData); phost->pActiveClass->pData = 0U; }if ((phost->pActiveClass->pData) != NULL) { ... } return USBH_OK; }{ ... } /** * @brief USBH_MSC_ClassRequest * The function is responsible for handling Standard requests * for MSC class. * @param phost: Host handle * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_ClassRequest(USBH_HandleTypeDef *phost) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; USBH_StatusTypeDef status = USBH_BUSY; uint8_t i; /* Switch MSC REQ state machine */ switch (MSC_Handle->req_state) { case MSC_REQ_IDLE: case MSC_REQ_GET_MAX_LUN: /* Issue GetMaxLUN request */ status = USBH_MSC_BOT_REQ_GetMaxLUN(phost, &MSC_Handle->max_lun); /* When devices do not support the GetMaxLun request, this should be considered as only one logical unit is supported *//* ... */ if (status == USBH_NOT_SUPPORTED) { MSC_Handle->max_lun = 0U; status = USBH_OK; }if (status == USBH_NOT_SUPPORTED) { ... } if (status == USBH_OK) { MSC_Handle->max_lun = (MSC_Handle->max_lun > MAX_SUPPORTED_LUN) ? MAX_SUPPORTED_LUN : (MSC_Handle->max_lun + 1U); USBH_UsrLog("Number of supported LUN: %d", MSC_Handle->max_lun); for (i = 0U; i < MSC_Handle->max_lun; i++) { MSC_Handle->unit[i].prev_ready_state = USBH_FAIL; MSC_Handle->unit[i].state_changed = 0U; }for (i = 0U; i < MSC_Handle->max_lun; i++) { ... } }if (status == USBH_OK) { ... } break; case MSC_REQ_GET_MAX_LUN: case MSC_REQ_ERROR: /* a Clear Feature should be issued here */ if (USBH_ClrFeature(phost, 0x00U) == USBH_OK) { MSC_Handle->req_state = MSC_Handle->prev_req_state; }if (USBH_ClrFeature(phost, 0x00U) == USBH_OK) { ... } break; case MSC_REQ_ERROR: default: break;default }switch (MSC_Handle->req_state) { ... } return status; }{ ... } /** * @brief USBH_MSC_Process * The function is for managing state machine for MSC data transfers * @param phost: Host handle * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_Process(USBH_HandleTypeDef *phost) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; USBH_StatusTypeDef error = USBH_BUSY; USBH_StatusTypeDef scsi_status = USBH_BUSY; USBH_StatusTypeDef ready_status = USBH_BUSY; switch (MSC_Handle->state) { case MSC_INIT: if (MSC_Handle->current_lun < MSC_Handle->max_lun) { MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_NOT_READY; /* Switch MSC REQ state machine */ switch (MSC_Handle->unit[MSC_Handle->current_lun].state) { case MSC_INIT: USBH_UsrLog("LUN #%d: ", MSC_Handle->current_lun); MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_READ_INQUIRY; MSC_Handle->timer = phost->Timer; break; case MSC_INIT: case MSC_READ_INQUIRY: scsi_status = USBH_MSC_SCSI_Inquiry(phost, (uint8_t)MSC_Handle->current_lun, &MSC_Handle->unit[MSC_Handle->current_lun].inquiry); if (scsi_status == USBH_OK) { USBH_UsrLog("Inquiry Vendor : %s", MSC_Handle->unit[MSC_Handle->current_lun].inquiry.vendor_id); USBH_UsrLog("Inquiry Product : %s", MSC_Handle->unit[MSC_Handle->current_lun].inquiry.product_id); USBH_UsrLog("Inquiry Version : %s", MSC_Handle->unit[MSC_Handle->current_lun].inquiry.revision_id); MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_TEST_UNIT_READY; }if (scsi_status == USBH_OK) { ... } if (scsi_status == USBH_FAIL) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_REQUEST_SENSE; }if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_ERROR; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } break; case MSC_READ_INQUIRY: case MSC_TEST_UNIT_READY: ready_status = USBH_MSC_SCSI_TestUnitReady(phost, (uint8_t)MSC_Handle->current_lun); if (ready_status == USBH_OK) { if (MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state != USBH_OK) { MSC_Handle->unit[MSC_Handle->current_lun].state_changed = 1U; USBH_UsrLog("MSC Device ready"); }if (MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state != USBH_OK) { ... } else { MSC_Handle->unit[MSC_Handle->current_lun].state_changed = 0U; }else { ... } MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_READ_CAPACITY10; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_OK; MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state = USBH_OK; }if (ready_status == USBH_OK) { ... } if (ready_status == USBH_FAIL) { /* Media not ready, so try to check again during 10s */ if (MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state != USBH_FAIL) { MSC_Handle->unit[MSC_Handle->current_lun].state_changed = 1U; USBH_UsrLog("MSC Device NOT ready"); }if (MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state != USBH_FAIL) { ... } else { MSC_Handle->unit[MSC_Handle->current_lun].state_changed = 0U; }else { ... } MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_REQUEST_SENSE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_NOT_READY; MSC_Handle->unit[MSC_Handle->current_lun].prev_ready_state = USBH_FAIL; }if (ready_status == USBH_FAIL) { ... } else { if (ready_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_ERROR; }if (ready_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } break; case MSC_TEST_UNIT_READY: case MSC_READ_CAPACITY10: scsi_status = USBH_MSC_SCSI_ReadCapacity(phost, (uint8_t)MSC_Handle->current_lun, &MSC_Handle->unit[MSC_Handle->current_lun].capacity); if (scsi_status == USBH_OK) { if (MSC_Handle->unit[MSC_Handle->current_lun].state_changed == 1U) { USBH_UsrLog("MSC Device capacity : %u Bytes", \ (unsigned int)(MSC_Handle->unit[MSC_Handle->current_lun].capacity.block_nbr * MSC_Handle->unit[MSC_Handle->current_lun].capacity.block_size)); USBH_UsrLog("Block number : %u", (unsigned int)(MSC_Handle->unit[MSC_Handle->current_lun].capacity.block_nbr)); USBH_UsrLog("Block Size : %u", (unsigned int)(MSC_Handle->unit[MSC_Handle->current_lun].capacity.block_size)); }if (MSC_Handle->unit[MSC_Handle->current_lun].state_changed == 1U) { ... } MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_OK; MSC_Handle->current_lun++; }if (scsi_status == USBH_OK) { ... } else if (scsi_status == USBH_FAIL) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_REQUEST_SENSE; }else if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_ERROR; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } break; case MSC_READ_CAPACITY10: case MSC_REQUEST_SENSE: scsi_status = USBH_MSC_SCSI_RequestSense(phost, (uint8_t)MSC_Handle->current_lun, &MSC_Handle->unit[MSC_Handle->current_lun].sense); if (scsi_status == USBH_OK) { if ((MSC_Handle->unit[MSC_Handle->current_lun].sense.key == SCSI_SENSE_KEY_UNIT_ATTENTION) || (MSC_Handle->unit[MSC_Handle->current_lun].sense.key == SCSI_SENSE_KEY_NOT_READY)) { if ((phost->Timer - MSC_Handle->timer) < 10000U) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_TEST_UNIT_READY; break; }if ((phost->Timer - MSC_Handle->timer) < 10000U) { ... } }if ((MSC_Handle->unit[MSC_Handle->current_lun].sense.key == SCSI_SENSE_KEY_UNIT_ATTENTION) || (MSC_Handle->unit[MSC_Handle->current_lun].sense.key == SCSI_SENSE_KEY_NOT_READY)) { ... } USBH_UsrLog("Sense Key : %x", MSC_Handle->unit[MSC_Handle->current_lun].sense.key); USBH_UsrLog("Additional Sense Code : %x", MSC_Handle->unit[MSC_Handle->current_lun].sense.asc); USBH_UsrLog("Additional Sense Code Qualifier: %x", MSC_Handle->unit[MSC_Handle->current_lun].sense.ascq); MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->current_lun++; }if (scsi_status == USBH_OK) { ... } if (scsi_status == USBH_FAIL) { USBH_UsrLog("MSC Device NOT ready"); MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_UNRECOVERED_ERROR; }if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[MSC_Handle->current_lun].state = MSC_IDLE; MSC_Handle->unit[MSC_Handle->current_lun].error = MSC_ERROR; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } break; case MSC_REQUEST_SENSE: case MSC_UNRECOVERED_ERROR: MSC_Handle->current_lun++; break; case MSC_UNRECOVERED_ERROR: default: break;default }switch (MSC_Handle->unit[MSC_Handle->current_lun].state) { ... } #if (USBH_USE_OS == 1U) phost->os_msg = (uint32_t)USBH_CLASS_EVENT; #if (osCMSIS < 0x20000U) (void)osMessagePut(phost->os_event, phost->os_msg, 0U); #else (void)osMessageQueuePut(phost->os_event, &phost->os_msg, 0U, 0U); #endif/* ... */ #endif }if (MSC_Handle->current_lun < MSC_Handle->max_lun) { ... } else { MSC_Handle->current_lun = 0U; MSC_Handle->state = MSC_IDLE; #if (USBH_USE_OS == 1U) phost->os_msg = (uint32_t)USBH_CLASS_EVENT; #if (osCMSIS < 0x20000U) (void)osMessagePut(phost->os_event, phost->os_msg, 0U); #else (void)osMessageQueuePut(phost->os_event, &phost->os_msg, 0U, 0U); #endif/* ... */ #endif phost->pUser(phost, HOST_USER_CLASS_ACTIVE); }else { ... } break; case MSC_INIT: case MSC_IDLE: error = USBH_OK; break; case MSC_IDLE: default: break;default }switch (MSC_Handle->state) { ... } return error; }{ ... } /** * @brief USBH_MSC_SOFProcess * The function is for SOF state * @param phost: Host handle * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_SOFProcess(USBH_HandleTypeDef *phost) { /* Prevent unused argument(s) compilation warning */ UNUSED(phost); return USBH_OK; }{ ... } /** * @brief USBH_MSC_RdWrProcess * The function is for managing state machine for MSC I/O Process * @param phost: Host handle * @param lun: logical Unit Number * @retval USBH Status *//* ... */ static USBH_StatusTypeDef USBH_MSC_RdWrProcess(USBH_HandleTypeDef *phost, uint8_t lun) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; USBH_StatusTypeDef error = USBH_BUSY; USBH_StatusTypeDef scsi_status = USBH_BUSY; /* Switch MSC REQ state machine */ switch (MSC_Handle->unit[lun].state) { case MSC_READ: scsi_status = USBH_MSC_SCSI_Read(phost, lun, 0U, NULL, 0U); if (scsi_status == USBH_OK) { MSC_Handle->unit[lun].state = MSC_IDLE; error = USBH_OK; }if (scsi_status == USBH_OK) { ... } else if (scsi_status == USBH_FAIL) { MSC_Handle->unit[lun].state = MSC_REQUEST_SENSE; }else if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[lun].state = MSC_UNRECOVERED_ERROR; error = USBH_FAIL; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } #if (USBH_USE_OS == 1U) phost->os_msg = (uint32_t)USBH_CLASS_EVENT; #if (osCMSIS < 0x20000U) (void)osMessagePut(phost->os_event, phost->os_msg, 0U); #else (void)osMessageQueuePut(phost->os_event, &phost->os_msg, 0U, 0U); #endif/* ... */ #endif break; case MSC_READ: case MSC_WRITE: scsi_status = USBH_MSC_SCSI_Write(phost, lun, 0U, NULL, 0U); if (scsi_status == USBH_OK) { MSC_Handle->unit[lun].state = MSC_IDLE; error = USBH_OK; }if (scsi_status == USBH_OK) { ... } else if (scsi_status == USBH_FAIL) { MSC_Handle->unit[lun].state = MSC_REQUEST_SENSE; }else if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[lun].state = MSC_UNRECOVERED_ERROR; error = USBH_FAIL; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } #if (USBH_USE_OS == 1U) phost->os_msg = (uint32_t)USBH_CLASS_EVENT; #if (osCMSIS < 0x20000U) (void)osMessagePut(phost->os_event, phost->os_msg, 0U); #else (void)osMessageQueuePut(phost->os_event, &phost->os_msg, 0U, 0U); #endif/* ... */ #endif break; case MSC_WRITE: case MSC_REQUEST_SENSE: scsi_status = USBH_MSC_SCSI_RequestSense(phost, lun, &MSC_Handle->unit[lun].sense); if (scsi_status == USBH_OK) { USBH_UsrLog("Sense Key : %x", MSC_Handle->unit[lun].sense.key); USBH_UsrLog("Additional Sense Code : %x", MSC_Handle->unit[lun].sense.asc); USBH_UsrLog("Additional Sense Code Qualifier: %x", MSC_Handle->unit[lun].sense.ascq); MSC_Handle->unit[lun].state = MSC_IDLE; MSC_Handle->unit[lun].error = MSC_ERROR; error = USBH_FAIL; }if (scsi_status == USBH_OK) { ... } if (scsi_status == USBH_FAIL) { USBH_UsrLog("MSC Device NOT ready"); }if (scsi_status == USBH_FAIL) { ... } else { if (scsi_status == USBH_UNRECOVERED_ERROR) { MSC_Handle->unit[lun].state = MSC_UNRECOVERED_ERROR; error = USBH_FAIL; }if (scsi_status == USBH_UNRECOVERED_ERROR) { ... } }else { ... } #if (USBH_USE_OS == 1U) phost->os_msg = (uint32_t)USBH_CLASS_EVENT; #if (osCMSIS < 0x20000U) (void)osMessagePut(phost->os_event, phost->os_msg, 0U); #else (void)osMessageQueuePut(phost->os_event, &phost->os_msg, 0U, 0U); #endif/* ... */ #endif break; case MSC_REQUEST_SENSE: default: break; default }switch (MSC_Handle->unit[lun].state) { ... } return error; }{ ... } /** * @brief USBH_MSC_IsReady * The function check if the MSC function is ready * @param phost: Host handle * @retval USBH Status *//* ... */ uint8_t USBH_MSC_IsReady(USBH_HandleTypeDef *phost) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; uint8_t res; if ((phost->gState == HOST_CLASS) && (MSC_Handle->state == MSC_IDLE)) { res = 1U; }if ((phost->gState == HOST_CLASS) && (MSC_Handle->state == MSC_IDLE)) { ... } else { res = 0U; }else { ... } return res; }{ ... } /** * @brief USBH_MSC_GetMaxLUN * The function return the Max LUN supported * @param phost: Host handle * @retval logical Unit Number supported *//* ... */ uint8_t USBH_MSC_GetMaxLUN(USBH_HandleTypeDef *phost) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if ((phost->gState == HOST_CLASS) && (MSC_Handle->state == MSC_IDLE)) { return (uint8_t)MSC_Handle->max_lun; }if ((phost->gState == HOST_CLASS) && (MSC_Handle->state == MSC_IDLE)) { ... } return 0xFFU; }{ ... } /** * @brief USBH_MSC_UnitIsReady * The function check whether a LUN is ready * @param phost: Host handle * @param lun: logical Unit Number * @retval Lun status (0: not ready / 1: ready) *//* ... */ uint8_t USBH_MSC_UnitIsReady(USBH_HandleTypeDef *phost, uint8_t lun) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; uint8_t res; if ((phost->gState == HOST_CLASS) && (MSC_Handle->unit[lun].error == MSC_OK)) { res = 1U; }if ((phost->gState == HOST_CLASS) && (MSC_Handle->unit[lun].error == MSC_OK)) { ... } else { res = 0U; }else { ... } return res; }{ ... } /** * @brief USBH_MSC_GetLUNInfo * The function return a LUN information * @param phost: Host handle * @param lun: logical Unit Number * @retval USBH Status *//* ... */ USBH_StatusTypeDef USBH_MSC_GetLUNInfo(USBH_HandleTypeDef *phost, uint8_t lun, MSC_LUNTypeDef *info) { MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if (phost->gState == HOST_CLASS) { (void)USBH_memcpy(info, &MSC_Handle->unit[lun], sizeof(MSC_LUNTypeDef)); return USBH_OK; }if (phost->gState == HOST_CLASS) { ... } else { return USBH_FAIL; }else { ... } }{ ... } /** * @brief USBH_MSC_Read * The function performs a Read operation * @param phost: Host handle * @param lun: logical Unit Number * @param address: sector address * @param pbuf: pointer to data * @param length: number of sector to read * @retval USBH Status *//* ... */ USBH_StatusTypeDef USBH_MSC_Read(USBH_HandleTypeDef *phost, uint8_t lun, uint32_t address, uint8_t *pbuf, uint32_t length) { uint32_t timeout; MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if ((phost->device.is_connected == 0U) || (phost->gState != HOST_CLASS) || (MSC_Handle->unit[lun].state != MSC_IDLE)) { return USBH_FAIL; }if ((phost->device.is_connected == 0U) || (phost->gState != HOST_CLASS) || (MSC_Handle->unit[lun].state != MSC_IDLE)) { ... } MSC_Handle->state = MSC_READ; MSC_Handle->unit[lun].state = MSC_READ; MSC_Handle->rw_lun = lun; (void)USBH_MSC_SCSI_Read(phost, lun, address, pbuf, length); timeout = phost->Timer; while (USBH_MSC_RdWrProcess(phost, lun) == USBH_BUSY) { if (((phost->Timer - timeout) > (10000U * length)) || (phost->device.is_connected == 0U)) { MSC_Handle->state = MSC_IDLE; return USBH_FAIL; }if (((phost->Timer - timeout) > (10000U * length)) || (phost->device.is_connected == 0U)) { ... } }while (USBH_MSC_RdWrProcess(phost, lun) == USBH_BUSY) { ... } MSC_Handle->state = MSC_IDLE; return USBH_OK; }{ ... } /** * @brief USBH_MSC_Write * The function performs a Write operation * @param phost: Host handle * @param lun: logical Unit Number * @param address: sector address * @param pbuf: pointer to data * @param length: number of sector to write * @retval USBH Status *//* ... */ USBH_StatusTypeDef USBH_MSC_Write(USBH_HandleTypeDef *phost, uint8_t lun, uint32_t address, uint8_t *pbuf, uint32_t length) { uint32_t timeout; MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData; if ((phost->device.is_connected == 0U) || (phost->gState != HOST_CLASS) || (MSC_Handle->unit[lun].state != MSC_IDLE)) { return USBH_FAIL; }if ((phost->device.is_connected == 0U) || (phost->gState != HOST_CLASS) || (MSC_Handle->unit[lun].state != MSC_IDLE)) { ... } MSC_Handle->state = MSC_WRITE; MSC_Handle->unit[lun].state = MSC_WRITE; MSC_Handle->rw_lun = lun; (void)USBH_MSC_SCSI_Write(phost, lun, address, pbuf, length); timeout = phost->Timer; while (USBH_MSC_RdWrProcess(phost, lun) == USBH_BUSY) { if (((phost->Timer - timeout) > (10000U * length)) || (phost->device.is_connected == 0U)) { MSC_Handle->state = MSC_IDLE; return USBH_FAIL; }if (((phost->Timer - timeout) > (10000U * length)) || (phost->device.is_connected == 0U)) { ... } }while (USBH_MSC_RdWrProcess(phost, lun) == USBH_BUSY) { ... } MSC_Handle->state = MSC_IDLE; return USBH_OK; }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ Includes