usbd_conf.c 19.7 KB
Newer Older
1
2
3
4
/*
 * This file is part of the Micro Python project, http://micropython.org/
 */

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
/**
  ******************************************************************************
  * @file    USB_Device/CDC_Standalone/Src/usbd_conf.c
  * @author  MCD Application Team
  * @version V1.0.1
  * @date    26-February-2014
  * @brief   This file implements the USB Device library callbacks and MSP
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
33
#include STM32_HAL_H
34
#include "usbd_core.h"
35
36
#include "py/obj.h"
#include "irq.h"
37
#include "usb.h"
38
39
40
41
42

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
43
44
45
46
47
48
#ifdef USE_USB_FS
PCD_HandleTypeDef pcd_fs_handle;
#endif
#ifdef USE_USB_HS
PCD_HandleTypeDef pcd_hs_handle;
#endif
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
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
                       PCD BSP Routines
*******************************************************************************/
/**
  * @brief  Initializes the PCD MSP.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
{
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  if(hpcd->Instance == USB_OTG_FS)
  {
    /* Configure USB FS GPIOs */
    __GPIOA_CLK_ENABLE();
    
    GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
	/* Configure VBUS Pin */
77
78
#if defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
    // USB VBUS detect pin is always A9
79
80
81
82
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
83
#endif
84
	
85
86
#if defined(MICROPY_HW_USB_OTG_ID_PIN)
    // USB ID pin is always A10
87
88
89
90
91
    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
92
#endif
93
94
95
96
97

    /* Enable USB FS Clocks */ 
    __USB_OTG_FS_CLK_ENABLE();
    
    /* Set USBFS Interrupt priority */
98
    HAL_NVIC_SetPriority(OTG_FS_IRQn, IRQ_PRI_OTG_FS, IRQ_SUBPRI_OTG_FS);
99
100
101
102
    
    /* Enable USBFS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  } 
103
#if defined(USE_USB_HS)
104
105
  else if(hpcd->Instance == USB_OTG_HS)
  {
106
107
#if defined(USE_USB_HS_IN_FS)

108
    /* Configure USB FS GPIOs */
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
    __GPIOB_CLK_ENABLE();

    /* Configure DM DP Pins */
    GPIO_InitStruct.Pin = (GPIO_PIN_14 | GPIO_PIN_15);
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

#if defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
    /* Configure VBUS Pin */
    GPIO_InitStruct.Pin = GPIO_PIN_13;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
#endif

#if defined(MICROPY_HW_USB_OTG_ID_PIN)
    /* Configure ID pin */
    GPIO_InitStruct.Pin = GPIO_PIN_12;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
#endif
    /*
     * Enable calling WFI and correct
     * function of the embedded USB_FS_IN_HS phy
     */
    __OTGHSULPI_CLK_SLEEP_DISABLE();
    __OTGHS_CLK_SLEEP_ENABLE();
    /* Enable USB HS Clocks */
    __USB_OTG_HS_CLK_ENABLE();

147
#else // !USE_USB_HS_IN_FS
148
149

    /* Configure USB HS GPIOs */
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
    __GPIOA_CLK_ENABLE();
    __GPIOB_CLK_ENABLE();
    __GPIOC_CLK_ENABLE();
    __GPIOH_CLK_ENABLE();
    __GPIOI_CLK_ENABLE();
    
    /* CLK */
    GPIO_InitStruct.Pin = GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    /* D0 */
    GPIO_InitStruct.Pin = GPIO_PIN_3;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    /* D1 D2 D3 D4 D5 D6 D7 */
    GPIO_InitStruct.Pin = GPIO_PIN_0  | GPIO_PIN_1  | GPIO_PIN_5 |\
                          GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 
    
    /* STP */    
    GPIO_InitStruct.Pin = GPIO_PIN_0;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); 
    
    /* NXT */ 
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);   
    
    /* DIR */
    GPIO_InitStruct.Pin = GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);
    
    /* Enable USB HS Clocks */
    __USB_OTG_HS_CLK_ENABLE();
    __USB_OTG_HS_ULPI_CLK_ENABLE();
204
#endif // !USE_USB_HS_IN_FS
205
206
    
    /* Set USBHS Interrupt to the lowest priority */
207
    HAL_NVIC_SetPriority(OTG_HS_IRQn, IRQ_PRI_OTG_HS, IRQ_SUBPRI_OTG_HS);
208
209
210
211
    
    /* Enable USBHS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
  }   
212
#endif  // USE_USB_HS
213
214
215
216
217
218
219
220
221
222
223
224
225
226
}
/**
  * @brief  DeInitializes the PCD MSP.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
{
  if(hpcd->Instance == USB_OTG_FS)
  {  
    /* Disable USB FS Clocks */ 
    __USB_OTG_FS_CLK_DISABLE();
    __SYSCFG_CLK_DISABLE(); 
  }
227
  #if defined(USE_USB_HS)
228
229
230
231
232
233
  else if(hpcd->Instance == USB_OTG_HS)
  {  
    /* Disable USB FS Clocks */ 
    __USB_OTG_HS_CLK_DISABLE();
    __SYSCFG_CLK_DISABLE(); 
  }  
234
  #endif
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
}

/*******************************************************************************
                       LL Driver Callbacks (PCD -> USB Device Library)
*******************************************************************************/


/**
  * @brief  Setup stage callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
}

/**
  * @brief  Data Out stage callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}

/**
  * @brief  Data In stage callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
}

/**
  * @brief  SOF callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
279
280
/*
This is now handled by the USB CDC interface.
281
282
283
284
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_SOF(hpcd->pData);
}
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

/**
  * @brief  Reset callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{ 
  USBD_SpeedTypeDef speed = USBD_SPEED_FULL;

  /* Set USB Current Speed */
  switch(hpcd->Init.speed)
  {
  case PCD_SPEED_HIGH:
    speed = USBD_SPEED_HIGH;
    break;
    
  case PCD_SPEED_FULL:
    speed = USBD_SPEED_FULL;    
    break;
	
	default:
    speed = USBD_SPEED_FULL;    
    break;
  }
  USBD_LL_SetSpeed(hpcd->pData, speed);  
  
  /* Reset Device */
  USBD_LL_Reset(hpcd->pData);
}

/**
  * @brief  Suspend callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_Suspend(hpcd->pData);
}

/**
  * @brief  Resume callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_Resume(hpcd->pData);
}

/**
  * @brief  ISOC Out Incomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number  
  * @retval None
  */
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_IsoOUTIncomplete(hpcd->pData, epnum);
}

/**
  * @brief  ISOC In Incomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number  
  * @retval None
  */
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_IsoINIncomplete(hpcd->pData, epnum);
}

/**
  * @brief  Connect callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevConnected(hpcd->pData);
}

/**
  * @brief  Disconnect callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevDisconnected(hpcd->pData);
}

/*******************************************************************************
                       LL Driver Interface (USB Device Library --> PCD)
*******************************************************************************/
/**
  * @brief  Initializes the Low Level portion of the Device driver.  
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_Init (USBD_HandleTypeDef *pdev)
{ 
389
#if defined(USE_USB_FS)
390
391
if (pdev->id ==  USB_PHY_FS_ID)
{
392
  /*Set LL Driver parameters */
393
394
395
396
397
398
399
  pcd_fs_handle.Instance = USB_OTG_FS;
  pcd_fs_handle.Init.dev_endpoints = 4;
  pcd_fs_handle.Init.use_dedicated_ep1 = 0;
  pcd_fs_handle.Init.ep0_mps = 0x40;
  pcd_fs_handle.Init.dma_enable = 0;
  pcd_fs_handle.Init.low_power_enable = 0;
  pcd_fs_handle.Init.phy_itface = PCD_PHY_EMBEDDED;
400
  pcd_fs_handle.Init.Sof_enable = 1;
401
  pcd_fs_handle.Init.speed = PCD_SPEED_FULL;
402
#if !defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
403
  pcd_fs_handle.Init.vbus_sensing_enable = 0; // No VBUS Sensing on USB0
bvernoux's avatar
bvernoux committed
404
#else
405
  pcd_fs_handle.Init.vbus_sensing_enable = 1;
bvernoux's avatar
bvernoux committed
406
#endif
407
  /* Link The driver to the stack */
408
409
  pcd_fs_handle.pData = pdev;
  pdev->pData = &pcd_fs_handle;
410
  /*Initialize LL Driver */
411
  HAL_PCD_Init(&pcd_fs_handle);
412

413
414
415
416
417
418
419
420
421
422
  HAL_PCD_SetRxFiFo(&pcd_fs_handle, 0x80);
  HAL_PCD_SetTxFiFo(&pcd_fs_handle, 0, 0x20);
  HAL_PCD_SetTxFiFo(&pcd_fs_handle, 1, 0x40);
  HAL_PCD_SetTxFiFo(&pcd_fs_handle, 2, 0x20);
  HAL_PCD_SetTxFiFo(&pcd_fs_handle, 3, 0x40);
}
#endif
#if defined(USE_USB_HS)
if (pdev->id == USB_PHY_HS_ID)
{
423
#if defined(USE_USB_HS_IN_FS)
424
  /*Set LL Driver parameters */
425
426
427
428
429
430
431
432
433
  pcd_hs_handle.Instance = USB_OTG_HS;
  pcd_hs_handle.Init.dev_endpoints = 4;
  pcd_hs_handle.Init.use_dedicated_ep1 = 0;
  pcd_hs_handle.Init.ep0_mps = 0x40;
  pcd_hs_handle.Init.dma_enable = 0;
  pcd_hs_handle.Init.low_power_enable = 0;
  pcd_hs_handle.Init.phy_itface = PCD_PHY_EMBEDDED;
  pcd_hs_handle.Init.Sof_enable = 0;
  pcd_hs_handle.Init.speed = PCD_SPEED_HIGH_IN_FULL;
434
#if !defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
435
  pcd_hs_handle.Init.vbus_sensing_enable = 0; // No VBUS Sensing on USB0
436
#else
437
  pcd_hs_handle.Init.vbus_sensing_enable = 1;
438
439
#endif
  /* Link The driver to the stack */
440
441
  pcd_hs_handle.pData = pdev;
  pdev->pData = &pcd_hs_handle;
442
  /*Initialize LL Driver */
443
  HAL_PCD_Init(&pcd_hs_handle);
444

445
446
447
448
449
  HAL_PCD_SetRxFiFo(&pcd_hs_handle, 0x80);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 0, 0x20);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 1, 0x40);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 2, 0x20);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 3, 0x40);
450
#else // !defined(USE_USB_HS_IN_FS)
451
  /*Set LL Driver parameters */
452
453
454
455
  pcd_hs_handle.Instance = USB_OTG_HS;
  pcd_hs_handle.Init.dev_endpoints = 6;
  pcd_hs_handle.Init.use_dedicated_ep1 = 0;
  pcd_hs_handle.Init.ep0_mps = 0x40;
456
457
458
459
460
461
  
  /* Be aware that enabling USB-DMA mode will result in data being sent only by
     multiple of 4 packet sizes. This is due to the fact that USB-DMA does
     not allow sending data from non word-aligned addresses.
     For this specific application, it is advised to not enable this option
     unless required. */
462
  pcd_hs_handle.Init.dma_enable = 0;
463
  
464
465
466
467
468
  pcd_hs_handle.Init.low_power_enable = 0;
  pcd_hs_handle.Init.phy_itface = PCD_PHY_ULPI;
  pcd_hs_handle.Init.Sof_enable = 0;
  pcd_hs_handle.Init.speed = PCD_SPEED_HIGH;
  pcd_hs_handle.Init.vbus_sensing_enable = 1;
469
  /* Link The driver to the stack */
470
471
  pcd_hs_handle.pData = pdev;
  pdev->pData = &pcd_hs_handle;
472
  /*Initialize LL Driver */
473
  HAL_PCD_Init(&pcd_hs_handle);
474
  
475
476
477
  HAL_PCD_SetRxFiFo(&pcd_hs_handle, 0x200);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 0, 0x80);
  HAL_PCD_SetTxFiFo(&pcd_hs_handle, 1, 0x174);
478

479
#endif  // !USE_USB_HS_IN_FS
480
}
481
#endif  // USE_USB_HS
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
  return USBD_OK;
}

/**
  * @brief  De-Initializes the Low Level portion of the Device driver. 
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
{
  HAL_PCD_DeInit(pdev->pData);
  return USBD_OK; 
}

/**
  * @brief  Starts the Low Level portion of the Device driver.    
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev)
{
  HAL_PCD_Start(pdev->pData);
  return USBD_OK; 
}

/**
  * @brief  Stops the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev)
{
  HAL_PCD_Stop(pdev->pData);
  return USBD_OK; 
}

/**
  * @brief  Opens an endpoint of the Low Level Driver. 
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  ep_type: Endpoint Type
  * @param  ep_mps: Endpoint Max Packet Size                 
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev, 
                                  uint8_t  ep_addr,                                      
                                  uint8_t  ep_type,
                                  uint16_t ep_mps)
{
  HAL_PCD_EP_Open(pdev->pData, ep_addr, ep_mps, ep_type);
  return USBD_OK; 
}

/**
  * @brief  Closes an endpoint of the Low Level Driver.  
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number      
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  HAL_PCD_EP_Close(pdev->pData, ep_addr);
  return USBD_OK; 
}

/**
  * @brief  Flushes an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number      
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  HAL_PCD_EP_Flush(pdev->pData, ep_addr);
  return USBD_OK; 
}

/**
  * @brief  Sets a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number      
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
  return USBD_OK; 
}

/**
  * @brief  Clears a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number      
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);  
  return USBD_OK; 
}

/**
  * @brief  Returns Stall condition.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number      
  * @retval Stall (1: yes, 0: No)
  */
uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  PCD_HandleTypeDef *hpcd = pdev->pData; 
  
  if((ep_addr & 0x80) == 0x80)
  {
    return hpcd->IN_ep[ep_addr & 0x7F].is_stall; 
  }
  else
  {
    return hpcd->OUT_ep[ep_addr & 0x7F].is_stall; 
  }
}

/**
  * @brief  Assigns an USB address to the device
  * @param  pdev: Device handle
  * @param  dev_addr: USB address      
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr)   
{
  HAL_PCD_SetAddress(pdev->pData, dev_addr);
  return USBD_OK; 
}

/**
  * @brief  Transmits data over an endpoint 
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf: Pointer to data to be sent    
  * @param  size: Data size    
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev, 
                                    uint8_t  ep_addr,                                      
                                    uint8_t  *pbuf,
                                    uint16_t  size)
{
  HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
  return USBD_OK;   
}

/**
  * @brief  Prepares an endpoint for reception 
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf:pointer to data to be received    
  * @param  size: data size              
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, 
                                          uint8_t  ep_addr,                                      
                                          uint8_t  *pbuf,
                                          uint16_t  size)
{
  HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
  return USBD_OK;   
}

/**
  * @brief  Returns the last transfered packet size.    
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval Recived Data Size
  */
uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t  ep_addr)  
{
  return HAL_PCD_EP_GetRxCount(pdev->pData, ep_addr);
}

/**
  * @brief  Delay routine for the USB Device Library      
  * @param  Delay: Delay in ms
  * @retval None
  */
void  USBD_LL_Delay(uint32_t Delay)
{
  HAL_Delay(Delay);  
}

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/