aboutsummaryrefslogtreecommitdiff
path: root/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi.c
blob: 7de37e7f05b1e0c52ab9e35596e81682651c79eb (plain) (blame)
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
/**
  ******************************************************************************
  * @file    stm32f4xx_hal_dcmi.c
  * @author  MCD Application Team
  * @version V1.3.2
  * @date    26-June-2015
  * @brief   DCMI HAL module driver
  *          This file provides firmware functions to manage the following
  *          functionalities of the Digital Camera Interface (DCMI) peripheral:
  *           + Initialization and de-initialization functions
  *           + IO operation functions
  *           + Peripheral Control functions
  *           + Peripheral State and Error functions
  *
  @verbatim
  ==============================================================================
                        ##### How to use this driver #####
  ==============================================================================
  [..]
      The sequence below describes how to use this driver to capture image
      from a camera module connected to the DCMI Interface.
      This sequence does not take into account the configuration of the
      camera module, which should be made before to configure and enable
      the DCMI to capture images.

    (#) Program the required configuration through following parameters:
        horizontal and vertical polarity, pixel clock polarity, Capture Rate,
        Synchronization Mode, code of the frame delimiter and data width
        using HAL_DCMI_Init() function.

    (#) Configure the DMA2_Stream1 channel1 to transfer Data from DCMI DR
        register to the destination memory buffer.

    (#) Program the required configuration through following parameters:
        DCMI mode, destination memory Buffer address and the data length
        and enable capture using HAL_DCMI_Start_DMA() function.

    (#) Optionally, configure and Enable the CROP feature to select a rectangular
        window from the received image using HAL_DCMI_ConfigCrop()
        and HAL_DCMI_EnableCROP() functions

    (#) The capture can be stopped using HAL_DCMI_Stop() function.

    (#) To control DCMI state you can use the function HAL_DCMI_GetState().

     *** DCMI HAL driver macros list ***
     =============================================
     [..]
       Below the list of most used macros in DCMI HAL driver.

      (+) __HAL_DCMI_ENABLE: Enable the DCMI peripheral.
      (+) __HAL_DCMI_DISABLE: Disable the DCMI peripheral.
      (+) __HAL_DCMI_GET_FLAG: Get the DCMI pending flags.
      (+) __HAL_DCMI_CLEAR_FLAG: Clear the DCMI pending flags.
      (+) __HAL_DCMI_ENABLE_IT: Enable the specified DCMI interrupts.
      (+) __HAL_DCMI_DISABLE_IT: Disable the specified DCMI interrupts.
      (+) __HAL_DCMI_GET_IT_SOURCE: Check whether the specified DCMI interrupt has occurred or not.

     [..]
       (@) You can refer to the DCMI HAL driver header file for more useful macros

  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */
/** @defgroup DCMI DCMI
  * @brief DCMI HAL module driver
  * @{
  */

#ifdef HAL_DCMI_MODULE_ENABLED

#if defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) ||\
    defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F446xx)
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define HAL_TIMEOUT_DCMI_STOP    ((uint32_t)1000)  /* 1s  */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void       DCMI_DMAConvCplt(DMA_HandleTypeDef *hdma);
static void       DCMI_DMAError(DMA_HandleTypeDef *hdma);

/* Exported functions --------------------------------------------------------*/

/** @defgroup DCMI_Exported_Functions DCMI Exported Functions
  * @{
  */

/** @defgroup DCMI_Exported_Functions_Group1 Initialization and Configuration functions
 *  @brief   Initialization and Configuration functions
 *
@verbatim
 ===============================================================================
                ##### Initialization and Configuration functions #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Initialize and configure the DCMI
      (+) De-initialize the DCMI

@endverbatim
  * @{
  */

/**
  * @brief  Initializes the DCMI according to the specified
  *         parameters in the DCMI_InitTypeDef and create the associated handle.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */
__weak HAL_StatusTypeDef HAL_DCMI_Init(DCMI_HandleTypeDef *hdcmi)
{
  /* Check the DCMI peripheral state */
  if(hdcmi == NULL)
  {
     return HAL_ERROR;
  }

  /* Check function parameters */
  assert_param(IS_DCMI_ALL_INSTANCE(hdcmi->Instance));
  assert_param(IS_DCMI_PCKPOLARITY(hdcmi->Init.PCKPolarity));
  assert_param(IS_DCMI_VSPOLARITY(hdcmi->Init.VSPolarity));
  assert_param(IS_DCMI_HSPOLARITY(hdcmi->Init.HSPolarity));
  assert_param(IS_DCMI_SYNCHRO(hdcmi->Init.SynchroMode));
  assert_param(IS_DCMI_CAPTURE_RATE(hdcmi->Init.CaptureRate));
  assert_param(IS_DCMI_EXTENDED_DATA(hdcmi->Init.ExtendedDataMode));
  assert_param(IS_DCMI_MODE_JPEG(hdcmi->Init.JPEGMode));

  if(hdcmi->State == HAL_DCMI_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hdcmi->Lock = HAL_UNLOCKED;
    /* Init the low level hardware */
    HAL_DCMI_MspInit(hdcmi);
  }

  /* Change the DCMI state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;
  /* Configures the HS, VS, DE and PC polarity */
  hdcmi->Instance->CR &= ~(DCMI_CR_PCKPOL | DCMI_CR_HSPOL  | DCMI_CR_VSPOL  | DCMI_CR_EDM_0 |
                           DCMI_CR_EDM_1  | DCMI_CR_FCRC_0 | DCMI_CR_FCRC_1 | DCMI_CR_JPEG  |
                           DCMI_CR_ESS);
  hdcmi->Instance->CR |=  (uint32_t)(hdcmi->Init.SynchroMode | hdcmi->Init.CaptureRate | \
                                     hdcmi->Init.VSPolarity  | hdcmi->Init.HSPolarity  | \
                                     hdcmi->Init.PCKPolarity | hdcmi->Init.ExtendedDataMode | \
                                     hdcmi->Init.JPEGMode);

  if(hdcmi->Init.SynchroMode == DCMI_SYNCHRO_EMBEDDED)
  {
    DCMI->ESCR = (((uint32_t)hdcmi->Init.SyncroCode.FrameStartCode)    |
                  ((uint32_t)hdcmi->Init.SyncroCode.LineStartCode << 8)|
                  ((uint32_t)hdcmi->Init.SyncroCode.LineEndCode << 16) |
                  ((uint32_t)hdcmi->Init.SyncroCode.FrameEndCode << 24));

  }

  /* Enable the Line interrupt */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_LINE);

  /* Enable the VSYNC interrupt */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_VSYNC);

  /* Enable the Frame capture complete interrupt */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_FRAME);

  /* Enable the Synchronization error interrupt */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_ERR);

  /* Enable the Overflow interrupt */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_OVF);

  /* Enable DCMI by setting DCMIEN bit */
  __HAL_DCMI_ENABLE(hdcmi);

  /* Update error code */
  hdcmi->ErrorCode = HAL_DCMI_ERROR_NONE;

  /* Initialize the DCMI state*/
  hdcmi->State  = HAL_DCMI_STATE_READY;

  return HAL_OK;
}

/**
  * @brief  Deinitializes the DCMI peripheral registers to their default reset
  *         values.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */

HAL_StatusTypeDef HAL_DCMI_DeInit(DCMI_HandleTypeDef *hdcmi)
{
  /* DeInit the low level hardware */
  HAL_DCMI_MspDeInit(hdcmi);

  /* Update error code */
  hdcmi->ErrorCode = HAL_DCMI_ERROR_NONE;

  /* Initialize the DCMI state*/
  hdcmi->State = HAL_DCMI_STATE_RESET;

  /* Release Lock */
  __HAL_UNLOCK(hdcmi);

  return HAL_OK;
}

/**
  * @brief  Initializes the DCMI MSP.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_MspInit(DCMI_HandleTypeDef* hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_MspInit could be implemented in the user file
   */
}

/**
  * @brief  DeInitializes the DCMI MSP.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_MspDeInit(DCMI_HandleTypeDef* hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_MspDeInit could be implemented in the user file
   */
}

/**
  * @}
  */
/** @defgroup DCMI_Exported_Functions_Group2 IO operation functions
 *  @brief   IO operation functions
 *
@verbatim
 ===============================================================================
                      #####  IO operation functions  #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Configure destination address and data length and
          Enables DCMI DMA request and enables DCMI capture
      (+) Stop the DCMI capture.
      (+) Handles DCMI interrupt request.

@endverbatim
  * @{
  */

/**
  * @brief  Enables DCMI DMA request and enables DCMI capture
  * @param  hdcmi:     pointer to a DCMI_HandleTypeDef structure that contains
  *                    the configuration information for DCMI.
  * @param  DCMI_Mode: DCMI capture mode snapshot or continuous grab.
  * @param  pData:     The destination memory Buffer address (LCD Frame buffer).
  * @param  Length:    The length of capture to be transferred.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_Start_DMA(DCMI_HandleTypeDef* hdcmi, uint32_t DCMI_Mode, uint32_t pData, uint32_t Length)
{
  /* Initialize the second memory address */
  uint32_t SecondMemAddress = 0;

  /* Check function parameters */
  assert_param(IS_DCMI_CAPTURE_MODE(DCMI_Mode));

  /* Process Locked */
  __HAL_LOCK(hdcmi);

  /* Lock the DCMI peripheral state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_DCMI_CAPTURE_MODE(DCMI_Mode));

  /* Configure the DCMI Mode */
  hdcmi->Instance->CR &= ~(DCMI_CR_CM);
  hdcmi->Instance->CR |=  (uint32_t)(DCMI_Mode);

  /* Set the DMA memory0 conversion complete callback */
  hdcmi->DMA_Handle->XferCpltCallback = DCMI_DMAConvCplt;

  /* Set the DMA error callback */
  hdcmi->DMA_Handle->XferErrorCallback = DCMI_DMAError;

  if(Length <= 0xFFFF)
  {
    /* Enable the DMA Stream */
    HAL_DMA_Start_IT(hdcmi->DMA_Handle, (uint32_t)&hdcmi->Instance->DR, (uint32_t)pData, Length);
  }
  else /* DCMI_DOUBLE_BUFFER Mode */
  {
    /* Set the DMA memory1 conversion complete callback */
    hdcmi->DMA_Handle->XferM1CpltCallback = DCMI_DMAConvCplt;

    /* Initialize transfer parameters */
    hdcmi->XferCount = 1;
    hdcmi->XferSize = Length;
    hdcmi->pBuffPtr = pData;

    /* Get the number of buffer */
    while(hdcmi->XferSize > 0xFFFF)
    {
      hdcmi->XferSize = (hdcmi->XferSize/2);
      hdcmi->XferCount = hdcmi->XferCount*2;
    }

    /* Update DCMI counter  and transfer number*/
    hdcmi->XferCount = (hdcmi->XferCount - 2);
    hdcmi->XferTransferNumber = hdcmi->XferCount;

    /* Update second memory address */
    SecondMemAddress = (uint32_t)(pData + (4*hdcmi->XferSize));

    /* Start DMA multi buffer transfer */
    HAL_DMAEx_MultiBufferStart_IT(hdcmi->DMA_Handle, (uint32_t)&hdcmi->Instance->DR, (uint32_t)pData, SecondMemAddress, hdcmi->XferSize);
  }

  /* Enable Capture */
  DCMI->CR |= DCMI_CR_CAPTURE;

  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Disable DCMI DMA request and Disable DCMI capture
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_Stop(DCMI_HandleTypeDef* hdcmi)
{
  uint32_t tickstart = 0;

  /* Lock the DCMI peripheral state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;

  __HAL_DCMI_DISABLE(hdcmi);

  /* Disable Capture */
  DCMI->CR &= ~(DCMI_CR_CAPTURE);

  /* Get tick */
  tickstart = HAL_GetTick();

  /* Check if the DCMI capture effectively disabled */
  while((hdcmi->Instance->CR & DCMI_CR_CAPTURE) != 0)
  {
    if((HAL_GetTick() - tickstart ) > HAL_TIMEOUT_DCMI_STOP)
    {
      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* Update error code */
      hdcmi->ErrorCode |= HAL_DCMI_ERROR_TIMEOUT;

      /* Change DCMI state */
      hdcmi->State = HAL_DCMI_STATE_TIMEOUT;

      return HAL_TIMEOUT;
    }
  }

  /* Disable the DMA */
  HAL_DMA_Abort(hdcmi->DMA_Handle);

  /* Update error code */
  hdcmi->ErrorCode |= HAL_DCMI_ERROR_NONE;

  /* Change DCMI state */
  hdcmi->State = HAL_DCMI_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(hdcmi);

  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Handles DCMI interrupt request.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for the DCMI.
  * @retval None
  */
void HAL_DCMI_IRQHandler(DCMI_HandleTypeDef *hdcmi)
{
  /* Synchronization error interrupt management *******************************/
  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_ERRRI) != RESET)
  {
    if(__HAL_DCMI_GET_IT_SOURCE(hdcmi, DCMI_IT_ERR) != RESET)
    {
      /* Disable the Synchronization error interrupt */
      __HAL_DCMI_DISABLE_IT(hdcmi, DCMI_IT_ERR);

      /* Clear the Synchronization error flag */
      __HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_ERRRI);

      /* Update error code */
      hdcmi->ErrorCode |= HAL_DCMI_ERROR_SYNC;

      /* Change DCMI state */
      hdcmi->State = HAL_DCMI_STATE_ERROR;

      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* Abort the DMA Transfer */
      HAL_DMA_Abort(hdcmi->DMA_Handle);

      /* Synchronization error Callback */
      HAL_DCMI_ErrorCallback(hdcmi);
    }
  }
  /* Overflow interrupt management ********************************************/
  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_OVFRI) != RESET)
  {
    if(__HAL_DCMI_GET_IT_SOURCE(hdcmi, DCMI_IT_OVF) != RESET)
    {
      /* Disable the Overflow interrupt */
      __HAL_DCMI_DISABLE_IT(hdcmi, DCMI_IT_OVF);

      /* Clear the Overflow flag */
      __HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_OVFRI);

      /* Update error code */
      hdcmi->ErrorCode |= HAL_DCMI_ERROR_OVF;

      /* Change DCMI state */
      hdcmi->State = HAL_DCMI_STATE_ERROR;

      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* Abort the DMA Transfer */
      HAL_DMA_Abort(hdcmi->DMA_Handle);

      /* Overflow Callback */
      HAL_DCMI_ErrorCallback(hdcmi);
    }
  }
  /* Line Interrupt management ************************************************/
  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_LINERI) != RESET)
  {
    if(__HAL_DCMI_GET_IT_SOURCE(hdcmi, DCMI_IT_LINE) != RESET)
    {
      /* Clear the Line interrupt flag */
      __HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_LINERI);

      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* Line interrupt Callback */
      HAL_DCMI_LineEventCallback(hdcmi);
    }
  }
  /* VSYNC interrupt management ***********************************************/
  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_VSYNCRI) != RESET)
  {
    if(__HAL_DCMI_GET_IT_SOURCE(hdcmi, DCMI_IT_VSYNC) != RESET)
    {
      /* Disable the VSYNC interrupt */
      __HAL_DCMI_DISABLE_IT(hdcmi, DCMI_IT_VSYNC);

      /* Clear the VSYNC flag */
      __HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_VSYNCRI);

      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* VSYNC Callback */
      HAL_DCMI_VsyncEventCallback(hdcmi);
    }
  }
  /* End of Frame interrupt management ****************************************/
  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_FRAMERI) != RESET)
  {
    if(__HAL_DCMI_GET_IT_SOURCE(hdcmi, DCMI_IT_FRAME) != RESET)
    {
      /* Disable the End of Frame interrupt */
      __HAL_DCMI_DISABLE_IT(hdcmi, DCMI_IT_FRAME);

      /* Clear the End of Frame flag */
      __HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_FRAMERI);

      /* Process Unlocked */
      __HAL_UNLOCK(hdcmi);

      /* End of Frame Callback */
      HAL_DCMI_FrameEventCallback(hdcmi);
    }
  }
}

/**
  * @brief  Error DCMI callback.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_ErrorCallback(DCMI_HandleTypeDef *hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_ErrorCallback could be implemented in the user file
   */
}

/**
  * @brief  Line Event callback.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_LineEventCallback(DCMI_HandleTypeDef *hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_LineEventCallback could be implemented in the user file
   */
}

/**
  * @brief  VSYNC Event callback.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_VsyncEventCallback(DCMI_HandleTypeDef *hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_VsyncEventCallback could be implemented in the user file
   */
}

/**
  * @brief  Frame Event callback.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval None
  */
__weak void HAL_DCMI_FrameEventCallback(DCMI_HandleTypeDef *hdcmi)
{
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_DCMI_FrameEventCallback could be implemented in the user file
   */
}

/**
  * @}
  */

/** @defgroup DCMI_Exported_Functions_Group3 Peripheral Control functions
 *  @brief    Peripheral Control functions
 *
@verbatim
 ===============================================================================
                    ##### Peripheral Control functions #####
 ===============================================================================
[..]  This section provides functions allowing to:
      (+) Configure the CROP feature.
      (+) Enable/Disable the CROP feature.

@endverbatim
  * @{
  */

/**
  * @brief  Configure the DCMI CROP coordinate.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @param  YSize: DCMI Line number
  * @param  XSize: DCMI Pixel per line
  * @param  X0:    DCMI window X offset
  * @param  Y0:    DCMI window Y offset
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_ConfigCROP(DCMI_HandleTypeDef *hdcmi, uint32_t X0, uint32_t Y0, uint32_t XSize, uint32_t YSize)
{
  /* Process Locked */
  __HAL_LOCK(hdcmi);

  /* Lock the DCMI peripheral state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;

  /* Check the parameters */
  assert_param(IS_DCMI_WINDOW_COORDINATE(X0));
  assert_param(IS_DCMI_WINDOW_COORDINATE(YSize));
  assert_param(IS_DCMI_WINDOW_COORDINATE(XSize));
  assert_param(IS_DCMI_WINDOW_HEIGHT(Y0));

  /* Configure CROP */
  DCMI->CWSIZER = (XSize | (YSize << 16));
  DCMI->CWSTRTR = (X0 | (Y0 << 16));

  /* Initialize the DCMI state*/
  hdcmi->State  = HAL_DCMI_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(hdcmi);

  return HAL_OK;
}

/**
  * @brief  Disable the Crop feature.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_DisableCROP(DCMI_HandleTypeDef *hdcmi)
{
  /* Process Locked */
  __HAL_LOCK(hdcmi);

  /* Lock the DCMI peripheral state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;

  /* Disable DCMI Crop feature */
  DCMI->CR &= ~(uint32_t)DCMI_CR_CROP;

  /* Change the DCMI state*/
  hdcmi->State = HAL_DCMI_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(hdcmi);

  return HAL_OK;
}

/**
  * @brief  Enable the Crop feature.
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_EnableCROP(DCMI_HandleTypeDef *hdcmi)
{
  /* Process Locked */
  __HAL_LOCK(hdcmi);

  /* Lock the DCMI peripheral state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;

  /* Enable DCMI Crop feature */
  DCMI->CR |= (uint32_t)DCMI_CR_CROP;

  /* Change the DCMI state*/
  hdcmi->State = HAL_DCMI_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(hdcmi);

  return HAL_OK;
}

/**
  * @}
  */

/** @defgroup DCMI_Exported_Functions_Group4 Peripheral State functions
 *  @brief    Peripheral State functions
 *
@verbatim
 ===============================================================================
               ##### Peripheral State and Errors functions #####
 ===============================================================================
    [..]
    This subsection provides functions allowing to
      (+) Check the DCMI state.
      (+) Get the specific DCMI error flag.

@endverbatim
  * @{
  */

/**
  * @brief  Return the DCMI state
  * @param  hdcmi: pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL state
  */
HAL_DCMI_StateTypeDef HAL_DCMI_GetState(DCMI_HandleTypeDef *hdcmi)
{
  return hdcmi->State;
}

/**
* @brief  Return the DCMI error code
* @param  hdcmi : pointer to a DCMI_HandleTypeDef structure that contains
  *               the configuration information for DCMI.
* @retval DCMI Error Code
*/
uint32_t HAL_DCMI_GetError(DCMI_HandleTypeDef *hdcmi)
{
  return hdcmi->ErrorCode;
}

/**
  * @}
  */
/* Private functions ---------------------------------------------------------*/
/** @defgroup DCMI_Private_Functions DCMI Private Functions
  * @{
  */

  /**
  * @brief  DMA conversion complete callback.
  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
  *                the configuration information for the specified DMA module.
  * @retval None
  */
static void DCMI_DMAConvCplt(DMA_HandleTypeDef *hdma)
{
  uint32_t tmp = 0;

  DCMI_HandleTypeDef* hdcmi = ( DCMI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
  hdcmi->State= HAL_DCMI_STATE_READY;

  if(hdcmi->XferCount != 0)
  {
    /* Update memory 0 address location */
    tmp = ((hdcmi->DMA_Handle->Instance->CR) & DMA_SxCR_CT);
    if(((hdcmi->XferCount % 2) == 0) && (tmp != 0))
    {
      tmp = hdcmi->DMA_Handle->Instance->M0AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8*hdcmi->XferSize)), MEMORY0);
      hdcmi->XferCount--;
    }
    /* Update memory 1 address location */
    else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0)
    {
      tmp = hdcmi->DMA_Handle->Instance->M1AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8*hdcmi->XferSize)), MEMORY1);
      hdcmi->XferCount--;
    }
  }
  /* Update memory 0 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) != 0)
  {
    hdcmi->DMA_Handle->Instance->M0AR = hdcmi->pBuffPtr;
  }
  /* Update memory 1 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0)
  {
    tmp = hdcmi->pBuffPtr;
    hdcmi->DMA_Handle->Instance->M1AR = (tmp + (4*hdcmi->XferSize));
    hdcmi->XferCount = hdcmi->XferTransferNumber;
  }

  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_FRAMERI) != RESET)
  {
    /* Process Unlocked */
    __HAL_UNLOCK(hdcmi);

    /* FRAME Callback */
    HAL_DCMI_FrameEventCallback(hdcmi);
  }
}

/**
  * @brief  DMA error callback
  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
  *                the configuration information for the specified DMA module.
  * @retval None
  */
static void DCMI_DMAError(DMA_HandleTypeDef *hdma)
{
    DCMI_HandleTypeDef* hdcmi = ( DCMI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    hdcmi->State= HAL_DCMI_STATE_READY;
    HAL_DCMI_ErrorCallback(hdcmi);
}

/**
  * @}
  */

/**
  * @}
  */
#endif /* STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx ||\
          STM32F429xx || STM32F439xx || STM32F446xx */
#endif /* HAL_DCMI_MODULE_ENABLED */
/**
  * @}
  */

/**
  * @}
  */

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