aboutsummaryrefslogblamecommitdiff
path: root/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_i2s.h
blob: b045de30e3d81394e6be347f50bf76be1bed77ef (plain) (tree)
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






























































































































































































































































































































































































































































































































                                                                                                                                               
/**
  ******************************************************************************
  * @file    stm32f4xx_hal_i2s.h
  * @author  MCD Application Team
  * @version V1.3.2
  * @date    26-June-2015
  * @brief   Header file of I2S HAL module.
  ******************************************************************************
  * @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.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HAL_I2S_H
#define __STM32F4xx_HAL_I2S_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */

/** @addtogroup I2S
  * @{
  */

/* Exported types ------------------------------------------------------------*/
/** @defgroup I2S_Exported_Types I2S Exported Types
  * @{
  */

/**
  * @brief I2S Init structure definition
  */
typedef struct
{
  uint32_t Mode;         /*!< Specifies the I2S operating mode.
                              This parameter can be a value of @ref I2S_Mode */

  uint32_t Standard;     /*!< Specifies the standard used for the I2S communication.
                              This parameter can be a value of @ref I2S_Standard */

  uint32_t DataFormat;   /*!< Specifies the data format for the I2S communication.
                              This parameter can be a value of @ref I2S_Data_Format */

  uint32_t MCLKOutput;   /*!< Specifies whether the I2S MCLK output is enabled or not.
                              This parameter can be a value of @ref I2S_MCLK_Output */

  uint32_t AudioFreq;    /*!< Specifies the frequency selected for the I2S communication.
                              This parameter can be a value of @ref I2S_Audio_Frequency */

  uint32_t CPOL;         /*!< Specifies the idle state of the I2S clock.
                              This parameter can be a value of @ref I2S_Clock_Polarity */

  uint32_t ClockSource;  /*!< Specifies the I2S Clock Source.
                              This parameter can be a value of @ref I2S_Clock_Source */

  uint32_t FullDuplexMode;  /*!< Specifies the I2S FullDuplex mode.
                                 This parameter can be a value of @ref I2S_FullDuplex_Mode */

}I2S_InitTypeDef;

/**
  * @brief  HAL State structures definition
  */
typedef enum
{
  HAL_I2S_STATE_RESET      = 0x00,  /*!< I2S not yet initialized or disabled                */
  HAL_I2S_STATE_READY      = 0x01,  /*!< I2S initialized and ready for use                  */
  HAL_I2S_STATE_BUSY       = 0x02,  /*!< I2S internal process is ongoing                    */
  HAL_I2S_STATE_BUSY_TX    = 0x12,  /*!< Data Transmission process is ongoing               */
  HAL_I2S_STATE_BUSY_RX    = 0x22,  /*!< Data Reception process is ongoing                  */
  HAL_I2S_STATE_BUSY_TX_RX = 0x32,  /*!< Data Transmission and Reception process is ongoing */
  HAL_I2S_STATE_TIMEOUT    = 0x03,  /*!< I2S timeout state                                  */
  HAL_I2S_STATE_ERROR      = 0x04   /*!< I2S error state                                    */

}HAL_I2S_StateTypeDef;

/**
  * @brief I2S handle Structure definition
  */
typedef struct
{
  SPI_TypeDef                *Instance;    /* I2S registers base address        */

  I2S_InitTypeDef            Init;         /* I2S communication parameters      */

  uint16_t                   *pTxBuffPtr;  /* Pointer to I2S Tx transfer buffer */

  __IO uint16_t              TxXferSize;   /* I2S Tx transfer size              */

  __IO uint16_t              TxXferCount;  /* I2S Tx transfer Counter           */

  uint16_t                   *pRxBuffPtr;  /* Pointer to I2S Rx transfer buffer */

  __IO uint16_t              RxXferSize;   /* I2S Rx transfer size              */

  __IO uint16_t              RxXferCount;  /* I2S Rx transfer counter           */

  DMA_HandleTypeDef          *hdmatx;      /* I2S Tx DMA handle parameters      */

  DMA_HandleTypeDef          *hdmarx;      /* I2S Rx DMA handle parameters      */

  __IO HAL_LockTypeDef       Lock;         /* I2S locking object                */

  __IO HAL_I2S_StateTypeDef  State;        /* I2S communication state           */

  __IO uint32_t              ErrorCode;    /* I2S Error code                    */

}I2S_HandleTypeDef;
/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/** @defgroup I2S_Exported_Constants I2S Exported Constants
  * @{
  */

/** @defgroup I2S_Error_Code I2S Error Code
  * @brief    I2S Error Code
  * @{
  */
#define HAL_I2S_ERROR_NONE          ((uint32_t)0x00000000)    /*!< No error                    */
#define HAL_I2S_ERROR_UDR           ((uint32_t)0x00000001)    /*!< I2S Underrun error          */
#define HAL_I2S_ERROR_OVR           ((uint32_t)0x00000002)    /*!< I2S Overrun error           */
#define HAL_I2SEX_ERROR_UDR         ((uint32_t)0x00000004)    /*!< I2S extended Underrun error */
#define HAL_I2SEX_ERROR_OVR         ((uint32_t)0x00000008)    /*!< I2S extended Overrun error  */
#define HAL_I2S_ERROR_FRE           ((uint32_t)0x00000010)    /*!< I2S Frame format error      */
#define HAL_I2S_ERROR_DMA           ((uint32_t)0x00000020)    /*!< DMA transfer error          */
/**
  * @}
  */

/** @defgroup I2S_Clock_Source I2S Clock Source
  * @{
  */
#define I2S_CLOCK_PLL                     ((uint32_t)0x00000000)
#define I2S_CLOCK_EXTERNAL                ((uint32_t)0x00000001)
#define I2S_CLOCK_PLLR                    ((uint32_t)0x00000002)
#define I2S_CLOCK_PLLSRC                  ((uint32_t)0x00000003)
/**
  * @}
  */

/** @defgroup I2S_Mode I2S Mode
  * @{
  */
#define I2S_MODE_SLAVE_TX                ((uint32_t)0x00000000)
#define I2S_MODE_SLAVE_RX                ((uint32_t)0x00000100)
#define I2S_MODE_MASTER_TX               ((uint32_t)0x00000200)
#define I2S_MODE_MASTER_RX               ((uint32_t)0x00000300)
/**
  * @}
  */

/** @defgroup I2S_Standard I2S Standard
  * @{
  */
#define I2S_STANDARD_PHILIPS             ((uint32_t)0x00000000)
#define I2S_STANDARD_MSB                 ((uint32_t)0x00000010)
#define I2S_STANDARD_LSB                 ((uint32_t)0x00000020)
#define I2S_STANDARD_PCM_SHORT           ((uint32_t)0x00000030)
#define I2S_STANDARD_PCM_LONG            ((uint32_t)0x000000B0)
/**
  * @}
  */

/** @defgroup I2S_Data_Format I2S Data Format
  * @{
  */
#define I2S_DATAFORMAT_16B               ((uint32_t)0x00000000)
#define I2S_DATAFORMAT_16B_EXTENDED      ((uint32_t)0x00000001)
#define I2S_DATAFORMAT_24B               ((uint32_t)0x00000003)
#define I2S_DATAFORMAT_32B               ((uint32_t)0x00000005)
/**
  * @}
  */

/** @defgroup I2S_MCLK_Output I2S Mclk Output
  * @{
  */
#define I2S_MCLKOUTPUT_ENABLE           ((uint32_t)SPI_I2SPR_MCKOE)
#define I2S_MCLKOUTPUT_DISABLE          ((uint32_t)0x00000000)
/**
  * @}
  */

/** @defgroup I2S_Audio_Frequency I2S Audio Frequency
  * @{
  */
#define I2S_AUDIOFREQ_192K               ((uint32_t)192000)
#define I2S_AUDIOFREQ_96K                ((uint32_t)96000)
#define I2S_AUDIOFREQ_48K                ((uint32_t)48000)
#define I2S_AUDIOFREQ_44K                ((uint32_t)44100)
#define I2S_AUDIOFREQ_32K                ((uint32_t)32000)
#define I2S_AUDIOFREQ_22K                ((uint32_t)22050)
#define I2S_AUDIOFREQ_16K                ((uint32_t)16000)
#define I2S_AUDIOFREQ_11K                ((uint32_t)11025)
#define I2S_AUDIOFREQ_8K                 ((uint32_t)8000)
#define I2S_AUDIOFREQ_DEFAULT            ((uint32_t)2)
/**
  * @}
  */

/** @defgroup I2S_FullDuplex_Mode I2S FullDuplex Mode
  * @{
  */
#define I2S_FULLDUPLEXMODE_DISABLE                   ((uint32_t)0x00000000)
#define I2S_FULLDUPLEXMODE_ENABLE                    ((uint32_t)0x00000001)
/**
  * @}
  */

/** @defgroup I2S_Clock_Polarity  I2S Clock Polarity
  * @{
  */
#define I2S_CPOL_LOW                    ((uint32_t)0x00000000)
#define I2S_CPOL_HIGH                   ((uint32_t)SPI_I2SCFGR_CKPOL)
/**
  * @}
  */

/** @defgroup I2S_Interrupts_Definition I2S Interrupts Definition
  * @{
  */
#define I2S_IT_TXE                      SPI_CR2_TXEIE
#define I2S_IT_RXNE                     SPI_CR2_RXNEIE
#define I2S_IT_ERR                      SPI_CR2_ERRIE
/**
  * @}
  */

/** @defgroup I2S_Flags_Definition I2S Flags Definition
  * @{
  */
#define I2S_FLAG_TXE                    SPI_SR_TXE
#define I2S_FLAG_RXNE                   SPI_SR_RXNE

#define I2S_FLAG_UDR                    SPI_SR_UDR
#define I2S_FLAG_OVR                    SPI_SR_OVR
#define I2S_FLAG_FRE                    SPI_SR_FRE

#define I2S_FLAG_CHSIDE                 SPI_SR_CHSIDE
#define I2S_FLAG_BSY                    SPI_SR_BSY
/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/** @defgroup I2S_Exported_Macros I2S Exported Macros
  * @{
  */

/** @brief Reset I2S handle state
  * @param  __HANDLE__: specifies the I2S Handle.
  * @retval None
  */
#define __HAL_I2S_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2S_STATE_RESET)

/** @brief  Enable or disable the specified SPI peripheral (in I2S mode).
  * @param  __HANDLE__: specifies the I2S Handle.
  * @retval None
  */
#define __HAL_I2S_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->I2SCFGR |= SPI_I2SCFGR_I2SE)
#define __HAL_I2S_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->I2SCFGR &= ~SPI_I2SCFGR_I2SE)

/** @brief  Enable or disable the specified I2S interrupts.
  * @param  __HANDLE__: specifies the I2S Handle.
  * @param  __INTERRUPT__: specifies the interrupt source to enable or disable.
  *         This parameter can be one of the following values:
  *            @arg I2S_IT_TXE: Tx buffer empty interrupt enable
  *            @arg I2S_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg I2S_IT_ERR: Error interrupt enable
  * @retval None
  */
#define __HAL_I2S_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 |= (__INTERRUPT__))
#define __HAL_I2S_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 &= ~(__INTERRUPT__))

/** @brief  Checks if the specified I2S interrupt source is enabled or disabled.
  * @param  __HANDLE__: specifies the I2S Handle.
  *         This parameter can be I2S where x: 1, 2, or 3 to select the I2S peripheral.
  * @param  __INTERRUPT__: specifies the I2S interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg I2S_IT_TXE: Tx buffer empty interrupt enable
  *            @arg I2S_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg I2S_IT_ERR: Error interrupt enable
  * @retval The new state of __IT__ (TRUE or FALSE).
  */
#define __HAL_I2S_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)

/** @brief  Checks whether the specified I2S flag is set or not.
  * @param  __HANDLE__: specifies the I2S Handle.
  * @param  __FLAG__: specifies the flag to check.
  *         This parameter can be one of the following values:
  *            @arg I2S_FLAG_RXNE: Receive buffer not empty flag
  *            @arg I2S_FLAG_TXE: Transmit buffer empty flag
  *            @arg I2S_FLAG_UDR: Underrun flag
  *            @arg I2S_FLAG_OVR: Overrun flag
  *            @arg I2S_FLAG_FRE: Frame error flag
  *            @arg I2S_FLAG_CHSIDE: Channel Side flag
  *            @arg I2S_FLAG_BSY: Busy flag
  * @retval The new state of __FLAG__ (TRUE or FALSE).
  */
#define __HAL_I2S_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__))

/** @brief Clears the I2S OVR pending flag.
  * @param  __HANDLE__: specifies the I2S Handle.
  * @retval None
  */
#define __HAL_I2S_CLEAR_OVRFLAG(__HANDLE__)     \
  do{                                           \
    __IO uint32_t tmpreg;                       \
    tmpreg = (__HANDLE__)->Instance->DR;        \
    tmpreg = (__HANDLE__)->Instance->SR;        \
    UNUSED(tmpreg);                             \
  } while(0)

/** @brief Clears the I2S UDR pending flag.
  * @param  __HANDLE__: specifies the I2S Handle.
  * @retval None
  */
#define __HAL_I2S_CLEAR_UDRFLAG(__HANDLE__)     \
  do{                                             \
  __IO uint32_t tmpreg;                         \
  tmpreg = (__HANDLE__)->Instance->SR;          \
  UNUSED(tmpreg);                               \
  } while(0)
/**
  * @}
  */

/* Include I2S Extension module */
#include "stm32f4xx_hal_i2s_ex.h"

/* Exported functions --------------------------------------------------------*/
/** @addtogroup I2S_Exported_Functions
  * @{
  */

/** @addtogroup I2S_Exported_Functions_Group1
  * @{
  */
/* Initialization/de-initialization functions  **********************************/
HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s);
HAL_StatusTypeDef HAL_I2S_DeInit (I2S_HandleTypeDef *hi2s);
void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s);
void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s);
/**
  * @}
  */

/** @addtogroup I2S_Exported_Functions_Group2
  * @{
  */
/* I/O operation functions  *****************************************************/
/* Blocking mode: Polling */
HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout);

 /* Non-Blocking mode: Interrupt */
HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s);

/* Non-Blocking mode: DMA */
HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);

HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s);
HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s);
HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s);

/* Peripheral Control and State functions  **************************************/
HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s);
uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s);

/* Callbacks used in non blocking modes (Interrupt and DMA) *******************/
void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s);
void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s);
void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s);
void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s);
void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s);
/**
  * @}
  */

/**
  * @}
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup I2S_Private_Constants I2S Private Constants
  * @{
  */

/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/
/** @defgroup I2S_Private_Macros I2S Private Macros
  * @{
  */
#define IS_I2S_CLOCKSOURCE(CLOCK) (((CLOCK) == I2S_CLOCK_EXTERNAL) || \
                                   ((CLOCK) == I2S_CLOCK_PLLR)     ||\
                                   ((CLOCK) == I2S_CLOCK_PLLSRC)   ||\
                                   ((CLOCK) == I2S_CLOCK_PLL))

#define IS_I2S_MODE(MODE) (((MODE) == I2S_MODE_SLAVE_TX)  || \
                           ((MODE) == I2S_MODE_SLAVE_RX)  || \
                           ((MODE) == I2S_MODE_MASTER_TX) || \
                           ((MODE) == I2S_MODE_MASTER_RX))

#define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_STANDARD_PHILIPS)   || \
                                   ((STANDARD) == I2S_STANDARD_MSB)       || \
                                   ((STANDARD) == I2S_STANDARD_LSB)       || \
                                   ((STANDARD) == I2S_STANDARD_PCM_SHORT) || \
                                   ((STANDARD) == I2S_STANDARD_PCM_LONG))

#define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DATAFORMAT_16B)          || \
                                    ((FORMAT) == I2S_DATAFORMAT_16B_EXTENDED) || \
                                    ((FORMAT) == I2S_DATAFORMAT_24B)          || \
                                    ((FORMAT) == I2S_DATAFORMAT_32B))

#define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOUTPUT_ENABLE) || \
                                    ((OUTPUT) == I2S_MCLKOUTPUT_DISABLE))

#define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AUDIOFREQ_8K) && \
                                  ((FREQ) <= I2S_AUDIOFREQ_192K)) || \
                                  ((FREQ) == I2S_AUDIOFREQ_DEFAULT))

#define IS_I2S_FULLDUPLEX_MODE(MODE) (((MODE) == I2S_FULLDUPLEXMODE_DISABLE) || \
                                      ((MODE) == I2S_FULLDUPLEXMODE_ENABLE))

#define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_LOW) || \
                           ((CPOL) == I2S_CPOL_HIGH))

#define I2SxEXT(__INSTANCE__) ((__INSTANCE__) == (SPI2)? (SPI_TypeDef *)(I2S2ext_BASE): (SPI_TypeDef *)(I2S3ext_BASE))
/**
  * @}
  */

/* Private functions ---------------------------------------------------------*/
/** @defgroup I2S_Private_Functions I2S Private Functions
  * @{
  */
void              I2S_DMATxCplt(DMA_HandleTypeDef *hdma);
void              I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
void              I2S_DMARxCplt(DMA_HandleTypeDef *hdma);
void              I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
void              I2S_DMAError(DMA_HandleTypeDef *hdma);
HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, uint32_t Status, uint32_t Timeout);
HAL_StatusTypeDef I2S_Transmit_IT(I2S_HandleTypeDef *hi2s);
HAL_StatusTypeDef I2S_Receive_IT(I2S_HandleTypeDef *hi2s);
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif


#endif /* __STM32F4xx_HAL_I2S_H */

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