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targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_sai.c@384:ef87175507f1, 2014-11-04 (annotated)

Committer:
mbed_official
Date:
Tue Nov 04 09:30:07 2014 +0000
Revision:
384:ef87175507f1
Parent:
380:510f0c3515e3
Child:
532:fe11edbda85c
Synchronized with git revision 8f7778d898867246da01cfccb39396c2e419c1f6



Full URL: https://github.com/mbedmicro/mbed/commit/8f7778d898867246da01cfccb39396c2e419c1f6/



Targets: Nucleo F4xx - Reorder f4xx structure

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_sai.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 369:2e96f1b71984 5 * @version V1.1.0
mbed_official 369:2e96f1b71984 6 * @date 19-June-2014
mbed_official 87:085cde657901 7 * @brief SAI HAL module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of the Serial Audio Interface (SAI) peripheral:
mbed_official 87:085cde657901 10 * + Initialization/de-initialization functions
mbed_official 87:085cde657901 11 * + I/O operation functions
mbed_official 87:085cde657901 12 * + Peripheral Control functions
mbed_official 87:085cde657901 13 * + Peripheral State functions
mbed_official 87:085cde657901 14 *
mbed_official 87:085cde657901 15 @verbatim
mbed_official 87:085cde657901 16 ==============================================================================
mbed_official 87:085cde657901 17 ##### How to use this driver #####
mbed_official 87:085cde657901 18 ==============================================================================
mbed_official 87:085cde657901 19
mbed_official 87:085cde657901 20 [..]
mbed_official 226:b062af740e40 21 The SAI HAL driver can be used as follows:
mbed_official 87:085cde657901 22
mbed_official 87:085cde657901 23 (#) Declare a SAI_HandleTypeDef handle structure.
mbed_official 226:b062af740e40 24 (#) Initialize the SAI low level resources by implementing the HAL_SAI_MspInit() API:
mbed_official 87:085cde657901 25 (##) Enable the SAI interface clock.
mbed_official 87:085cde657901 26 (##) SAI pins configuration:
mbed_official 87:085cde657901 27 (+++) Enable the clock for the SAI GPIOs.
mbed_official 87:085cde657901 28 (+++) Configure these SAI pins as alternate function pull-up.
mbed_official 87:085cde657901 29 (##) NVIC configuration if you need to use interrupt process (HAL_SAI_Transmit_IT()
mbed_official 87:085cde657901 30 and HAL_SAI_Receive_IT() APIs):
mbed_official 87:085cde657901 31 (+++) Configure the SAI interrupt priority.
mbed_official 87:085cde657901 32 (+++) Enable the NVIC SAI IRQ handle.
mbed_official 87:085cde657901 33
mbed_official 87:085cde657901 34 (##) DMA Configuration if you need to use DMA process (HAL_SAI_Transmit_DMA()
mbed_official 87:085cde657901 35 and HAL_SAI_Receive_DMA() APIs):
mbed_official 87:085cde657901 36 (+++) Declare a DMA handle structure for the Tx/Rx stream.
mbed_official 87:085cde657901 37 (+++) Enable the DMAx interface clock.
mbed_official 87:085cde657901 38 (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official 87:085cde657901 39 (+++) Configure the DMA Tx/Rx Stream.
mbed_official 87:085cde657901 40 (+++) Associate the initialized DMA handle to the SAI DMA Tx/Rx handle.
mbed_official 87:085cde657901 41 (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
mbed_official 87:085cde657901 42 DMA Tx/Rx Stream.
mbed_official 87:085cde657901 43
mbed_official 87:085cde657901 44 (#) Program the SAI Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
mbed_official 87:085cde657901 45 using HAL_SAI_Init() function.
mbed_official 87:085cde657901 46
mbed_official 87:085cde657901 47 -@- The specific SAI interrupts (FIFO request and Overrun underrun interrupt)
mbed_official 87:085cde657901 48 will be managed using the macros __SAI_ENABLE_IT() and __SAI_DISABLE_IT()
mbed_official 87:085cde657901 49 inside the transmit and receive process.
mbed_official 87:085cde657901 50
mbed_official 87:085cde657901 51 [..]
mbed_official 87:085cde657901 52 (@) Make sure that either:
mbed_official 87:085cde657901 53 (+@) I2S PLL is configured or
mbed_official 87:085cde657901 54 (+@) SAI PLL is configured or
mbed_official 87:085cde657901 55 (+@) External clock source is configured after setting correctly
mbed_official 87:085cde657901 56 the define constant EXTERNAL_CLOCK_VALUE in the stm32f4xx_hal_conf.h file.
mbed_official 87:085cde657901 57
mbed_official 87:085cde657901 58 [..]
mbed_official 226:b062af740e40 59 (@) In master Tx mode: enabling the audio block immediately generates the bit clock
mbed_official 87:085cde657901 60 for the external slaves even if there is no data in the FIFO, However FS signal
mbed_official 87:085cde657901 61 generation is conditioned by the presence of data in the FIFO.
mbed_official 87:085cde657901 62
mbed_official 87:085cde657901 63 [..]
mbed_official 226:b062af740e40 64 (@) In master Rx mode: enabling the audio block immediately generates the bit clock
mbed_official 87:085cde657901 65 and FS signal for the external slaves.
mbed_official 87:085cde657901 66
mbed_official 87:085cde657901 67 [..]
mbed_official 87:085cde657901 68 (@) It is mandatory to respect the following conditions in order to avoid bad SAI behavior:
mbed_official 87:085cde657901 69 (+@) First bit Offset <= (SLOT size - Data size)
mbed_official 87:085cde657901 70 (+@) Data size <= SLOT size
mbed_official 87:085cde657901 71 (+@) Number of SLOT x SLOT size = Frame length
mbed_official 87:085cde657901 72 (+@) The number of slots should be even when SAI_FS_CHANNEL_IDENTIFICATION is selected.
mbed_official 87:085cde657901 73
mbed_official 87:085cde657901 74 [..]
mbed_official 226:b062af740e40 75 Three operation modes are available within this driver :
mbed_official 87:085cde657901 76
mbed_official 87:085cde657901 77 *** Polling mode IO operation ***
mbed_official 87:085cde657901 78 =================================
mbed_official 87:085cde657901 79 [..]
mbed_official 87:085cde657901 80 (+) Send an amount of data in blocking mode using HAL_SAI_Transmit()
mbed_official 87:085cde657901 81 (+) Receive an amount of data in blocking mode using HAL_SAI_Receive()
mbed_official 87:085cde657901 82
mbed_official 87:085cde657901 83 *** Interrupt mode IO operation ***
mbed_official 87:085cde657901 84 ===================================
mbed_official 87:085cde657901 85 [..]
mbed_official 87:085cde657901 86 (+) Send an amount of data in non blocking mode using HAL_SAI_Transmit_IT()
mbed_official 87:085cde657901 87 (+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
mbed_official 87:085cde657901 88 add his own code by customization of function pointer HAL_SAI_TxCpltCallback
mbed_official 87:085cde657901 89 (+) Receive an amount of data in non blocking mode using HAL_SAI_Receive_IT()
mbed_official 87:085cde657901 90 (+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
mbed_official 87:085cde657901 91 add his own code by customization of function pointer HAL_SAI_RxCpltCallback
mbed_official 87:085cde657901 92 (+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
mbed_official 87:085cde657901 93 add his own code by customization of function pointer HAL_SAI_ErrorCallback
mbed_official 87:085cde657901 94
mbed_official 87:085cde657901 95 *** DMA mode IO operation ***
mbed_official 87:085cde657901 96 ==============================
mbed_official 87:085cde657901 97 [..]
mbed_official 87:085cde657901 98 (+) Send an amount of data in non blocking mode (DMA) using HAL_SAI_Transmit_DMA()
mbed_official 87:085cde657901 99 (+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
mbed_official 87:085cde657901 100 add his own code by customization of function pointer HAL_SAI_TxCpltCallback
mbed_official 87:085cde657901 101 (+) Receive an amount of data in non blocking mode (DMA) using HAL_SAI_Receive_DMA()
mbed_official 87:085cde657901 102 (+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
mbed_official 87:085cde657901 103 add his own code by customization of function pointer HAL_SAI_RxCpltCallback
mbed_official 87:085cde657901 104 (+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
mbed_official 87:085cde657901 105 add his own code by customization of function pointer HAL_SAI_ErrorCallback
mbed_official 87:085cde657901 106 (+) Pause the DMA Transfer using HAL_SAI_DMAPause()
mbed_official 87:085cde657901 107 (+) Resume the DMA Transfer using HAL_SAI_DMAResume()
mbed_official 87:085cde657901 108 (+) Stop the DMA Transfer using HAL_SAI_DMAStop()
mbed_official 87:085cde657901 109
mbed_official 87:085cde657901 110 *** SAI HAL driver macros list ***
mbed_official 87:085cde657901 111 =============================================
mbed_official 87:085cde657901 112 [..]
mbed_official 226:b062af740e40 113 Below the list of most used macros in USART HAL driver :
mbed_official 87:085cde657901 114
mbed_official 87:085cde657901 115 (+) __HAL_SAI_ENABLE: Enable the SAI peripheral
mbed_official 87:085cde657901 116 (+) __HAL_SAI_DISABLE: Disable the SAI peripheral
mbed_official 87:085cde657901 117 (+) __HAL_SAI_ENABLE_IT : Enable the specified SAI interrupts
mbed_official 87:085cde657901 118 (+) __HAL_SAI_DISABLE_IT : Disable the specified SAI interrupts
mbed_official 87:085cde657901 119 (+) __HAL_SAI_GET_IT_SOURCE: Check if the specified SAI interrupt source is
mbed_official 87:085cde657901 120 enabled or disabled
mbed_official 87:085cde657901 121 (+) __HAL_SAI_GET_FLAG: Check whether the specified SAI flag is set or not
mbed_official 87:085cde657901 122
mbed_official 87:085cde657901 123 @endverbatim
mbed_official 87:085cde657901 124 ******************************************************************************
mbed_official 87:085cde657901 125 * @attention
mbed_official 87:085cde657901 126 *
mbed_official 87:085cde657901 127 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 128 *
mbed_official 87:085cde657901 129 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 130 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 131 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 132 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 133 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 134 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 135 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 136 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 137 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 138 * without specific prior written permission.
mbed_official 87:085cde657901 139 *
mbed_official 87:085cde657901 140 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 141 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 142 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 143 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 144 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 145 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 146 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 147 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 148 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 149 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 150 *
mbed_official 87:085cde657901 151 ******************************************************************************
mbed_official 87:085cde657901 152 */
mbed_official 87:085cde657901 153
mbed_official 87:085cde657901 154 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 155 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 156
mbed_official 87:085cde657901 157 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 158 * @{
mbed_official 87:085cde657901 159 */
mbed_official 87:085cde657901 160
mbed_official 87:085cde657901 161 /** @defgroup SAI
mbed_official 87:085cde657901 162 * @brief SAI HAL module driver
mbed_official 87:085cde657901 163 * @{
mbed_official 87:085cde657901 164 */
mbed_official 87:085cde657901 165
mbed_official 87:085cde657901 166 #ifdef HAL_SAI_MODULE_ENABLED
mbed_official 87:085cde657901 167
mbed_official 87:085cde657901 168 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
mbed_official 87:085cde657901 169
mbed_official 87:085cde657901 170 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 171 /* Private define ------------------------------------------------------------*/
mbed_official 87:085cde657901 172 /* SAI registers Masks */
mbed_official 87:085cde657901 173 #define CR1_CLEAR_MASK ((uint32_t)0xFF07C010)
mbed_official 87:085cde657901 174 #define FRCR_CLEAR_MASK ((uint32_t)0xFFF88000)
mbed_official 87:085cde657901 175 #define SLOTR_CLEAR_MASK ((uint32_t)0x0000F020)
mbed_official 87:085cde657901 176
mbed_official 369:2e96f1b71984 177 #define SAI_TIMEOUT_VALUE 10
mbed_official 87:085cde657901 178 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 179 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 180 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 181 static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 182 static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 183 static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 184 static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 185 static void SAI_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 186
mbed_official 87:085cde657901 187 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 188
mbed_official 87:085cde657901 189 /** @defgroup SAI_Private_Functions
mbed_official 87:085cde657901 190 * @{
mbed_official 87:085cde657901 191 */
mbed_official 87:085cde657901 192
mbed_official 87:085cde657901 193 /** @defgroup SAI_Group1 Initialization and de-initialization functions
mbed_official 87:085cde657901 194 * @brief Initialization and Configuration functions
mbed_official 87:085cde657901 195 *
mbed_official 87:085cde657901 196 @verbatim
mbed_official 87:085cde657901 197 ===============================================================================
mbed_official 87:085cde657901 198 ##### Initialization and de-initialization functions #####
mbed_official 87:085cde657901 199 ===============================================================================
mbed_official 87:085cde657901 200 [..] This subsection provides a set of functions allowing to initialize and
mbed_official 87:085cde657901 201 de-initialize the SAIx peripheral:
mbed_official 87:085cde657901 202
mbed_official 226:b062af740e40 203 (+) User must implement HAL_SAI_MspInit() function in which he configures
mbed_official 87:085cde657901 204 all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
mbed_official 87:085cde657901 205
mbed_official 87:085cde657901 206 (+) Call the function HAL_SAI_Init() to configure the selected device with
mbed_official 87:085cde657901 207 the selected configuration:
mbed_official 87:085cde657901 208 (++) Mode (Master/slave TX/RX)
mbed_official 87:085cde657901 209 (++) Protocol
mbed_official 87:085cde657901 210 (++) Data Size
mbed_official 87:085cde657901 211 (++) MCLK Output
mbed_official 87:085cde657901 212 (++) Audio frequency
mbed_official 87:085cde657901 213 (++) FIFO Threshold
mbed_official 87:085cde657901 214 (++) Frame Config
mbed_official 87:085cde657901 215 (++) Slot Config
mbed_official 87:085cde657901 216
mbed_official 87:085cde657901 217 (+) Call the function HAL_SAI_DeInit() to restore the default configuration
mbed_official 87:085cde657901 218 of the selected SAI peripheral.
mbed_official 87:085cde657901 219
mbed_official 87:085cde657901 220 @endverbatim
mbed_official 87:085cde657901 221 * @{
mbed_official 87:085cde657901 222 */
mbed_official 87:085cde657901 223
mbed_official 87:085cde657901 224 /**
mbed_official 87:085cde657901 225 * @brief Initializes the SAI according to the specified parameters
mbed_official 87:085cde657901 226 * in the SAI_InitTypeDef and create the associated handle.
mbed_official 226:b062af740e40 227 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 228 * the configuration information for SAI module.
mbed_official 87:085cde657901 229 * @retval HAL status
mbed_official 87:085cde657901 230 */
mbed_official 87:085cde657901 231 HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 232 {
mbed_official 87:085cde657901 233 uint32_t tmpreg = 0;
mbed_official 87:085cde657901 234 uint32_t tmpclock = 0, tmp2clock = 0;
mbed_official 87:085cde657901 235 /* This variable used to store the VCO Input (value in Hz) */
mbed_official 87:085cde657901 236 uint32_t vcoinput = 0;
mbed_official 87:085cde657901 237 /* This variable used to store the SAI_CK_x (value in Hz) */
mbed_official 87:085cde657901 238 uint32_t saiclocksource = 0;
mbed_official 87:085cde657901 239
mbed_official 87:085cde657901 240 /* Check the SAI handle allocation */
mbed_official 384:ef87175507f1 241 if(hsai == HAL_NULL)
mbed_official 87:085cde657901 242 {
mbed_official 87:085cde657901 243 return HAL_ERROR;
mbed_official 87:085cde657901 244 }
mbed_official 87:085cde657901 245
mbed_official 87:085cde657901 246 /* Check the SAI Block parameters */
mbed_official 87:085cde657901 247 assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol));
mbed_official 87:085cde657901 248 assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode));
mbed_official 87:085cde657901 249 assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize));
mbed_official 87:085cde657901 250 assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit));
mbed_official 87:085cde657901 251 assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing));
mbed_official 87:085cde657901 252 assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro));
mbed_official 87:085cde657901 253 assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive));
mbed_official 87:085cde657901 254 assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider));
mbed_official 87:085cde657901 255 assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold));
mbed_official 87:085cde657901 256 assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency));
mbed_official 87:085cde657901 257
mbed_official 87:085cde657901 258 /* Check the SAI Block Frame parameters */
mbed_official 87:085cde657901 259 assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength));
mbed_official 87:085cde657901 260 assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength));
mbed_official 87:085cde657901 261 assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition));
mbed_official 87:085cde657901 262 assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity));
mbed_official 87:085cde657901 263 assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset));
mbed_official 87:085cde657901 264
mbed_official 87:085cde657901 265 /* Check the SAI Block Slot parameters */
mbed_official 87:085cde657901 266 assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset));
mbed_official 87:085cde657901 267 assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize));
mbed_official 87:085cde657901 268 assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber));
mbed_official 87:085cde657901 269 assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive));
mbed_official 87:085cde657901 270
mbed_official 87:085cde657901 271 if(hsai->State == HAL_SAI_STATE_RESET)
mbed_official 87:085cde657901 272 {
mbed_official 87:085cde657901 273 /* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
mbed_official 87:085cde657901 274 HAL_SAI_MspInit(hsai);
mbed_official 87:085cde657901 275 }
mbed_official 87:085cde657901 276
mbed_official 87:085cde657901 277 hsai->State = HAL_SAI_STATE_BUSY;
mbed_official 87:085cde657901 278
mbed_official 87:085cde657901 279 /* Disable the selected SAI peripheral */
mbed_official 87:085cde657901 280 __HAL_SAI_DISABLE(hsai);
mbed_official 87:085cde657901 281
mbed_official 87:085cde657901 282 /* SAI Block Configuration ------------------------------------------------------------*/
mbed_official 87:085cde657901 283 /* SAI Block_x CR1 Configuration */
mbed_official 87:085cde657901 284 /* Get the SAI Block_x CR1 value */
mbed_official 87:085cde657901 285 tmpreg = hsai->Instance->CR1;
mbed_official 87:085cde657901 286 /* Clear MODE, PRTCFG, DS, LSBFIRST, CKSTR, SYNCEN, OUTDRIV, NODIV, and MCKDIV bits */
mbed_official 87:085cde657901 287 tmpreg &= CR1_CLEAR_MASK;
mbed_official 87:085cde657901 288 /* Configure SAI_Block_x: Audio Protocol, Data Size, first transmitted bit, Clock strobing
mbed_official 87:085cde657901 289 edge, Synchronization mode, Output drive, Master Divider and FIFO level */
mbed_official 87:085cde657901 290 /* Set PRTCFG bits according to Protocol value */
mbed_official 87:085cde657901 291 /* Set DS bits according to DataSize value */
mbed_official 87:085cde657901 292 /* Set LSBFIRST bit according to FirstBit value */
mbed_official 87:085cde657901 293 /* Set CKSTR bit according to ClockStrobing value */
mbed_official 87:085cde657901 294 /* Set SYNCEN bit according to Synchro value */
mbed_official 87:085cde657901 295 /* Set OUTDRIV bit according to OutputDrive value */
mbed_official 87:085cde657901 296 /* Set NODIV bit according to NoDivider value */
mbed_official 87:085cde657901 297 tmpreg |= (uint32_t)(hsai->Init.Protocol |
mbed_official 87:085cde657901 298 hsai->Init.AudioMode |
mbed_official 87:085cde657901 299 hsai->Init.DataSize |
mbed_official 87:085cde657901 300 hsai->Init.FirstBit |
mbed_official 87:085cde657901 301 hsai->Init.ClockStrobing |
mbed_official 87:085cde657901 302 hsai->Init.Synchro |
mbed_official 87:085cde657901 303 hsai->Init.OutputDrive |
mbed_official 87:085cde657901 304 hsai->Init.NoDivider);
mbed_official 87:085cde657901 305 /* Write to SAI_Block_x CR1 */
mbed_official 87:085cde657901 306 hsai->Instance->CR1 = tmpreg;
mbed_official 87:085cde657901 307
mbed_official 87:085cde657901 308 /* SAI Block_x CR2 Configuration */
mbed_official 87:085cde657901 309 /* Get the SAIBlock_x CR2 value */
mbed_official 87:085cde657901 310 tmpreg = hsai->Instance->CR2;
mbed_official 87:085cde657901 311 /* Clear FTH bits */
mbed_official 87:085cde657901 312 tmpreg &= ~(SAI_xCR2_FTH);
mbed_official 87:085cde657901 313 /* Configure the FIFO Level */
mbed_official 87:085cde657901 314 /* Set FTH bits according to SAI_FIFOThreshold value */
mbed_official 87:085cde657901 315 tmpreg |= (uint32_t)(hsai->Init.FIFOThreshold);
mbed_official 87:085cde657901 316 /* Write to SAI_Block_x CR2 */
mbed_official 87:085cde657901 317 hsai->Instance->CR2 = tmpreg;
mbed_official 87:085cde657901 318
mbed_official 87:085cde657901 319 /* SAI Block_x Frame Configuration -----------------------------------------*/
mbed_official 87:085cde657901 320 /* Get the SAI Block_x FRCR value */
mbed_official 87:085cde657901 321 tmpreg = hsai->Instance->FRCR;
mbed_official 87:085cde657901 322 /* Clear FRL, FSALL, FSDEF, FSPOL, FSOFF bits */
mbed_official 87:085cde657901 323 tmpreg &= FRCR_CLEAR_MASK;
mbed_official 87:085cde657901 324 /* Configure SAI_Block_x Frame: Frame Length, Active Frame Length, Frame Synchronization
mbed_official 87:085cde657901 325 Definition, Frame Synchronization Polarity and Frame Synchronization Polarity */
mbed_official 87:085cde657901 326 /* Set FRL bits according to SAI_FrameLength value */
mbed_official 87:085cde657901 327 /* Set FSALL bits according to SAI_ActiveFrameLength value */
mbed_official 87:085cde657901 328 /* Set FSDEF bit according to SAI_FSDefinition value */
mbed_official 87:085cde657901 329 /* Set FSPOL bit according to SAI_FSPolarity value */
mbed_official 87:085cde657901 330 /* Set FSOFF bit according to SAI_FSOffset value */
mbed_official 87:085cde657901 331 tmpreg |= (uint32_t)((uint32_t)(hsai->FrameInit.FrameLength - 1) |
mbed_official 87:085cde657901 332 hsai->FrameInit.FSOffset |
mbed_official 87:085cde657901 333 hsai->FrameInit.FSDefinition |
mbed_official 87:085cde657901 334 hsai->FrameInit.FSPolarity |
mbed_official 87:085cde657901 335 (uint32_t)((hsai->FrameInit.ActiveFrameLength - 1) << 8));
mbed_official 87:085cde657901 336
mbed_official 87:085cde657901 337 /* Write to SAI_Block_x FRCR */
mbed_official 87:085cde657901 338 hsai->Instance->FRCR = tmpreg;
mbed_official 87:085cde657901 339
mbed_official 87:085cde657901 340 /* SAI Block_x SLOT Configuration ------------------------------------------*/
mbed_official 87:085cde657901 341 /* Get the SAI Block_x SLOTR value */
mbed_official 87:085cde657901 342 tmpreg = hsai->Instance->SLOTR;
mbed_official 87:085cde657901 343 /* Clear FBOFF, SLOTSZ, NBSLOT, SLOTEN bits */
mbed_official 87:085cde657901 344 tmpreg &= SLOTR_CLEAR_MASK;
mbed_official 87:085cde657901 345 /* Configure SAI_Block_x Slot: First bit offset, Slot size, Number of Slot in
mbed_official 87:085cde657901 346 audio frame and slots activated in audio frame */
mbed_official 87:085cde657901 347 /* Set FBOFF bits according to SAI_FirstBitOffset value */
mbed_official 87:085cde657901 348 /* Set SLOTSZ bits according to SAI_SlotSize value */
mbed_official 87:085cde657901 349 /* Set NBSLOT bits according to SAI_SlotNumber value */
mbed_official 87:085cde657901 350 /* Set SLOTEN bits according to SAI_SlotActive value */
mbed_official 87:085cde657901 351 tmpreg |= (uint32_t)(hsai->SlotInit.FirstBitOffset |
mbed_official 87:085cde657901 352 hsai->SlotInit.SlotSize |
mbed_official 87:085cde657901 353 hsai->SlotInit.SlotActive |
mbed_official 87:085cde657901 354 (uint32_t)((hsai->SlotInit.SlotNumber - 1) << 8));
mbed_official 87:085cde657901 355
mbed_official 87:085cde657901 356 /* Write to SAI_Block_x SLOTR */
mbed_official 87:085cde657901 357 hsai->Instance->SLOTR = tmpreg;
mbed_official 87:085cde657901 358
mbed_official 87:085cde657901 359 /* SAI Block_x Clock Configuration -----------------------------------------*/
mbed_official 87:085cde657901 360 /* Check the Clock parameters */
mbed_official 87:085cde657901 361 assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource));
mbed_official 87:085cde657901 362
mbed_official 87:085cde657901 363 /* SAI Block clock source selection */
mbed_official 87:085cde657901 364 if(hsai->Instance == SAI1_Block_A)
mbed_official 87:085cde657901 365 {
mbed_official 87:085cde657901 366 __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource);
mbed_official 87:085cde657901 367 }
mbed_official 87:085cde657901 368 else
mbed_official 87:085cde657901 369 {
mbed_official 87:085cde657901 370 __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2));
mbed_official 87:085cde657901 371 }
mbed_official 87:085cde657901 372
mbed_official 87:085cde657901 373 /* VCO Input Clock value calculation */
mbed_official 87:085cde657901 374 if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
mbed_official 87:085cde657901 375 {
mbed_official 87:085cde657901 376 /* In Case the PLL Source is HSI (Internal Clock) */
mbed_official 87:085cde657901 377 vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
mbed_official 87:085cde657901 378 }
mbed_official 87:085cde657901 379 else
mbed_official 87:085cde657901 380 {
mbed_official 87:085cde657901 381 /* In Case the PLL Source is HSE (External Clock) */
mbed_official 87:085cde657901 382 vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)));
mbed_official 87:085cde657901 383 }
mbed_official 87:085cde657901 384
mbed_official 87:085cde657901 385 /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */
mbed_official 87:085cde657901 386 if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI)
mbed_official 87:085cde657901 387 {
mbed_official 87:085cde657901 388 /* Configure the PLLI2S division factor */
mbed_official 87:085cde657901 389 /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
mbed_official 87:085cde657901 390 /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
mbed_official 87:085cde657901 391 /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
mbed_official 87:085cde657901 392 tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24;
mbed_official 87:085cde657901 393 saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6))/(tmpreg);
mbed_official 87:085cde657901 394
mbed_official 87:085cde657901 395 /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
mbed_official 87:085cde657901 396 tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8) + 1);
mbed_official 87:085cde657901 397 saiclocksource = saiclocksource/(tmpreg);
mbed_official 87:085cde657901 398
mbed_official 87:085cde657901 399 }
mbed_official 87:085cde657901 400 else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S)
mbed_official 87:085cde657901 401 {
mbed_official 87:085cde657901 402 /* Configure the PLLI2S division factor */
mbed_official 87:085cde657901 403 /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
mbed_official 87:085cde657901 404 /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
mbed_official 87:085cde657901 405 /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
mbed_official 87:085cde657901 406 tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24;
mbed_official 87:085cde657901 407 saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6))/(tmpreg);
mbed_official 87:085cde657901 408
mbed_official 87:085cde657901 409 /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
mbed_official 87:085cde657901 410 tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1);
mbed_official 87:085cde657901 411 saiclocksource = saiclocksource/(tmpreg);
mbed_official 87:085cde657901 412 }
mbed_official 87:085cde657901 413 else /* sConfig->ClockSource == SAI_CLKSource_Ext */
mbed_official 87:085cde657901 414 {
mbed_official 87:085cde657901 415 /* Enable the External Clock selection */
mbed_official 87:085cde657901 416 __HAL_RCC_I2SCLK(RCC_I2SCLKSOURCE_EXT);
mbed_official 87:085cde657901 417
mbed_official 87:085cde657901 418 saiclocksource = EXTERNAL_CLOCK_VALUE;
mbed_official 87:085cde657901 419 }
mbed_official 87:085cde657901 420
mbed_official 87:085cde657901 421 /* Configure Master Clock using the following formula :
mbed_official 87:085cde657901 422 MCLK_x = SAI_CK_x / (MCKDIV[3:0] * 2) with MCLK_x = 256 * FS
mbed_official 87:085cde657901 423 FS = SAI_CK_x / (MCKDIV[3:0] * 2) * 256
mbed_official 87:085cde657901 424 MCKDIV[3:0] = SAI_CK_x / FS * 512 */
mbed_official 87:085cde657901 425 if(hsai->Init.NoDivider == SAI_MASTERDIVIDER_ENABLED)
mbed_official 87:085cde657901 426 {
mbed_official 87:085cde657901 427 /* (saiclocksource x 10) to keep Significant digits */
mbed_official 87:085cde657901 428 tmpclock = (((saiclocksource * 10) / ((hsai->Init.AudioFrequency) * 512)));
mbed_official 87:085cde657901 429
mbed_official 87:085cde657901 430 /* Get the result of modulo division */
mbed_official 87:085cde657901 431 tmp2clock = (tmpclock % 10);
mbed_official 87:085cde657901 432
mbed_official 87:085cde657901 433 /* Round result to the nearest integer*/
mbed_official 87:085cde657901 434 if (tmp2clock > 8)
mbed_official 87:085cde657901 435 {
mbed_official 87:085cde657901 436 tmpclock = ((tmpclock / 10) + 1);
mbed_official 87:085cde657901 437 }
mbed_official 87:085cde657901 438 else
mbed_official 87:085cde657901 439 {
mbed_official 87:085cde657901 440 tmpclock = (tmpclock / 10);
mbed_official 87:085cde657901 441 }
mbed_official 87:085cde657901 442 /*Set MCKDIV value in CR1 register*/
mbed_official 87:085cde657901 443 hsai->Instance->CR1 |= (tmpclock << 20);
mbed_official 87:085cde657901 444
mbed_official 106:ced8cbb51063 445 }
mbed_official 87:085cde657901 446
mbed_official 87:085cde657901 447 /* Initialise the error code */
mbed_official 87:085cde657901 448 hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official 106:ced8cbb51063 449
mbed_official 87:085cde657901 450 /* Initialize the SAI state */
mbed_official 87:085cde657901 451 hsai->State= HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 452
mbed_official 87:085cde657901 453 return HAL_OK;
mbed_official 87:085cde657901 454 }
mbed_official 87:085cde657901 455
mbed_official 87:085cde657901 456 /**
mbed_official 87:085cde657901 457 * @brief DeInitializes the SAI peripheral.
mbed_official 226:b062af740e40 458 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 459 * the configuration information for SAI module.
mbed_official 87:085cde657901 460 * @retval HAL status
mbed_official 87:085cde657901 461 */
mbed_official 87:085cde657901 462 HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 463 {
mbed_official 87:085cde657901 464 /* Check the SAI handle allocation */
mbed_official 384:ef87175507f1 465 if(hsai == HAL_NULL)
mbed_official 87:085cde657901 466 {
mbed_official 87:085cde657901 467 return HAL_ERROR;
mbed_official 87:085cde657901 468 }
mbed_official 106:ced8cbb51063 469
mbed_official 87:085cde657901 470 hsai->State = HAL_SAI_STATE_BUSY;
mbed_official 106:ced8cbb51063 471
mbed_official 87:085cde657901 472 /* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
mbed_official 87:085cde657901 473 HAL_SAI_MspDeInit(hsai);
mbed_official 87:085cde657901 474
mbed_official 87:085cde657901 475 /* Initialize the error code */
mbed_official 87:085cde657901 476 hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official 87:085cde657901 477
mbed_official 87:085cde657901 478 /* Initialize the SAI state */
mbed_official 87:085cde657901 479 hsai->State = HAL_SAI_STATE_RESET;
mbed_official 106:ced8cbb51063 480
mbed_official 106:ced8cbb51063 481 /* Release Lock */
mbed_official 106:ced8cbb51063 482 __HAL_UNLOCK(hsai);
mbed_official 106:ced8cbb51063 483
mbed_official 87:085cde657901 484 return HAL_OK;
mbed_official 87:085cde657901 485 }
mbed_official 87:085cde657901 486
mbed_official 87:085cde657901 487 /**
mbed_official 87:085cde657901 488 * @brief SAI MSP Init.
mbed_official 226:b062af740e40 489 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 490 * the configuration information for SAI module.
mbed_official 87:085cde657901 491 * @retval None
mbed_official 87:085cde657901 492 */
mbed_official 87:085cde657901 493 __weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 494 {
mbed_official 87:085cde657901 495 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 496 the HAL_SAI_MspInit could be implemented in the user file
mbed_official 87:085cde657901 497 */
mbed_official 87:085cde657901 498 }
mbed_official 87:085cde657901 499
mbed_official 87:085cde657901 500 /**
mbed_official 87:085cde657901 501 * @brief SAI MSP DeInit.
mbed_official 226:b062af740e40 502 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 503 * the configuration information for SAI module.
mbed_official 87:085cde657901 504 * @retval None
mbed_official 87:085cde657901 505 */
mbed_official 87:085cde657901 506 __weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 507 {
mbed_official 87:085cde657901 508 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 509 the HAL_SAI_MspDeInit could be implemented in the user file
mbed_official 87:085cde657901 510 */
mbed_official 87:085cde657901 511 }
mbed_official 87:085cde657901 512
mbed_official 87:085cde657901 513 /**
mbed_official 87:085cde657901 514 * @}
mbed_official 87:085cde657901 515 */
mbed_official 87:085cde657901 516
mbed_official 87:085cde657901 517 /** @defgroup SAI_Group2 IO operation functions
mbed_official 87:085cde657901 518 * @brief Data transfers functions
mbed_official 87:085cde657901 519 *
mbed_official 87:085cde657901 520 @verbatim
mbed_official 87:085cde657901 521 ===============================================================================
mbed_official 87:085cde657901 522 ##### IO operation functions #####
mbed_official 87:085cde657901 523 ===============================================================================
mbed_official 87:085cde657901 524 [..]
mbed_official 87:085cde657901 525 This subsection provides a set of functions allowing to manage the SAI data
mbed_official 87:085cde657901 526 transfers.
mbed_official 87:085cde657901 527
mbed_official 226:b062af740e40 528 (+) There are two modes of transfer:
mbed_official 87:085cde657901 529 (++) Blocking mode : The communication is performed in the polling mode.
mbed_official 87:085cde657901 530 The status of all data processing is returned by the same function
mbed_official 87:085cde657901 531 after finishing transfer.
mbed_official 87:085cde657901 532 (++) No-Blocking mode : The communication is performed using Interrupts
mbed_official 87:085cde657901 533 or DMA. These functions return the status of the transfer startup.
mbed_official 87:085cde657901 534 The end of the data processing will be indicated through the
mbed_official 87:085cde657901 535 dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when
mbed_official 87:085cde657901 536 using DMA mode.
mbed_official 87:085cde657901 537
mbed_official 87:085cde657901 538 (+) Blocking mode functions are :
mbed_official 87:085cde657901 539 (++) HAL_SAI_Transmit()
mbed_official 87:085cde657901 540 (++) HAL_SAI_Receive()
mbed_official 87:085cde657901 541 (++) HAL_SAI_TransmitReceive()
mbed_official 87:085cde657901 542
mbed_official 226:b062af740e40 543 (+) Non Blocking mode functions with Interrupt are :
mbed_official 87:085cde657901 544 (++) HAL_SAI_Transmit_IT()
mbed_official 87:085cde657901 545 (++) HAL_SAI_Receive_IT()
mbed_official 87:085cde657901 546 (++) HAL_SAI_TransmitReceive_IT()
mbed_official 87:085cde657901 547
mbed_official 226:b062af740e40 548 (+) Non Blocking mode functions with DMA are :
mbed_official 87:085cde657901 549 (++) HAL_SAI_Transmit_DMA()
mbed_official 87:085cde657901 550 (++) HAL_SAI_Receive_DMA()
mbed_official 87:085cde657901 551 (++) HAL_SAI_TransmitReceive_DMA()
mbed_official 87:085cde657901 552
mbed_official 226:b062af740e40 553 (+) A set of Transfer Complete Callbacks are provided in non Blocking mode:
mbed_official 87:085cde657901 554 (++) HAL_SAI_TxCpltCallback()
mbed_official 87:085cde657901 555 (++) HAL_SAI_RxCpltCallback()
mbed_official 87:085cde657901 556 (++) HAL_SAI_ErrorCallback()
mbed_official 87:085cde657901 557
mbed_official 87:085cde657901 558 @endverbatim
mbed_official 87:085cde657901 559 * @{
mbed_official 87:085cde657901 560 */
mbed_official 87:085cde657901 561
mbed_official 87:085cde657901 562 /**
mbed_official 87:085cde657901 563 * @brief Transmits an amount of data in blocking mode.
mbed_official 226:b062af740e40 564 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 565 * the configuration information for SAI module.
mbed_official 87:085cde657901 566 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 567 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 568 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 569 * @retval HAL status
mbed_official 87:085cde657901 570 */
mbed_official 87:085cde657901 571 HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef *hsai, uint16_t* pData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 572 {
mbed_official 369:2e96f1b71984 573 uint32_t tickstart = 0;
mbed_official 87:085cde657901 574
mbed_official 384:ef87175507f1 575 if((pData == HAL_NULL ) || (Size == 0))
mbed_official 87:085cde657901 576 {
mbed_official 87:085cde657901 577 return HAL_ERROR;
mbed_official 87:085cde657901 578 }
mbed_official 87:085cde657901 579
mbed_official 87:085cde657901 580 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 581 {
mbed_official 87:085cde657901 582 /* Process Locked */
mbed_official 87:085cde657901 583 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 584
mbed_official 87:085cde657901 585 hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official 87:085cde657901 586
mbed_official 87:085cde657901 587 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 588 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 589 {
mbed_official 87:085cde657901 590 /* Enable SAI peripheral */
mbed_official 87:085cde657901 591 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 592 }
mbed_official 87:085cde657901 593
mbed_official 87:085cde657901 594 while(Size > 0)
mbed_official 87:085cde657901 595 {
mbed_official 369:2e96f1b71984 596 /* Get tick */
mbed_official 369:2e96f1b71984 597 tickstart = HAL_GetTick();
mbed_official 369:2e96f1b71984 598
mbed_official 87:085cde657901 599 /* Wait the FIFO to be empty */
mbed_official 87:085cde657901 600 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official 87:085cde657901 601 {
mbed_official 87:085cde657901 602 /* Check for the Timeout */
mbed_official 87:085cde657901 603 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 604 {
mbed_official 369:2e96f1b71984 605 if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
mbed_official 369:2e96f1b71984 606 {
mbed_official 87:085cde657901 607 /* Update error code */
mbed_official 87:085cde657901 608 hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
mbed_official 87:085cde657901 609
mbed_official 87:085cde657901 610 /* Process Unlocked */
mbed_official 87:085cde657901 611 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 612
mbed_official 87:085cde657901 613 /* Change the SAI state */
mbed_official 87:085cde657901 614 hsai->State = HAL_SAI_STATE_TIMEOUT;
mbed_official 87:085cde657901 615
mbed_official 87:085cde657901 616 return HAL_TIMEOUT;
mbed_official 87:085cde657901 617 }
mbed_official 87:085cde657901 618 }
mbed_official 87:085cde657901 619 }
mbed_official 87:085cde657901 620 hsai->Instance->DR = (*pData++);
mbed_official 87:085cde657901 621 Size--;
mbed_official 87:085cde657901 622 }
mbed_official 87:085cde657901 623
mbed_official 87:085cde657901 624 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 625
mbed_official 87:085cde657901 626 /* Process Unlocked */
mbed_official 87:085cde657901 627 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 628
mbed_official 87:085cde657901 629 return HAL_OK;
mbed_official 87:085cde657901 630 }
mbed_official 87:085cde657901 631 else
mbed_official 87:085cde657901 632 {
mbed_official 87:085cde657901 633 return HAL_BUSY;
mbed_official 87:085cde657901 634 }
mbed_official 87:085cde657901 635 }
mbed_official 87:085cde657901 636
mbed_official 87:085cde657901 637 /**
mbed_official 87:085cde657901 638 * @brief Receives an amount of data in blocking mode.
mbed_official 226:b062af740e40 639 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 640 * the configuration information for SAI module.
mbed_official 87:085cde657901 641 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 642 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 643 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 644 * @retval HAL status
mbed_official 87:085cde657901 645 */
mbed_official 87:085cde657901 646 HAL_StatusTypeDef HAL_SAI_Receive(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 647 {
mbed_official 369:2e96f1b71984 648 uint32_t tickstart = 0;
mbed_official 87:085cde657901 649
mbed_official 384:ef87175507f1 650 if((pData == HAL_NULL ) || (Size == 0))
mbed_official 87:085cde657901 651 {
mbed_official 87:085cde657901 652 return HAL_ERROR;
mbed_official 87:085cde657901 653 }
mbed_official 87:085cde657901 654
mbed_official 87:085cde657901 655 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 656 {
mbed_official 87:085cde657901 657 /* Process Locked */
mbed_official 87:085cde657901 658 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 659
mbed_official 87:085cde657901 660 hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official 87:085cde657901 661
mbed_official 87:085cde657901 662 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 663 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 664 {
mbed_official 87:085cde657901 665 /* Enable SAI peripheral */
mbed_official 87:085cde657901 666 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 667 }
mbed_official 87:085cde657901 668
mbed_official 87:085cde657901 669 /* Receive data */
mbed_official 87:085cde657901 670 while(Size > 0)
mbed_official 87:085cde657901 671 {
mbed_official 369:2e96f1b71984 672 /* Get tick */
mbed_official 369:2e96f1b71984 673 tickstart = HAL_GetTick();
mbed_official 369:2e96f1b71984 674
mbed_official 87:085cde657901 675 /* Wait until RXNE flag is set */
mbed_official 87:085cde657901 676 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official 87:085cde657901 677 {
mbed_official 87:085cde657901 678 /* Check for the Timeout */
mbed_official 87:085cde657901 679 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 680 {
mbed_official 369:2e96f1b71984 681 if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
mbed_official 369:2e96f1b71984 682 {
mbed_official 87:085cde657901 683 /* Update error code */
mbed_official 87:085cde657901 684 hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
mbed_official 87:085cde657901 685
mbed_official 87:085cde657901 686 /* Process Unlocked */
mbed_official 87:085cde657901 687 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 688
mbed_official 87:085cde657901 689 /* Change the SAI state */
mbed_official 87:085cde657901 690 hsai->State = HAL_SAI_STATE_TIMEOUT;
mbed_official 87:085cde657901 691
mbed_official 87:085cde657901 692 return HAL_TIMEOUT;
mbed_official 87:085cde657901 693 }
mbed_official 87:085cde657901 694 }
mbed_official 87:085cde657901 695 }
mbed_official 87:085cde657901 696
mbed_official 87:085cde657901 697 (*pData++) = hsai->Instance->DR;
mbed_official 87:085cde657901 698 Size--;
mbed_official 87:085cde657901 699 }
mbed_official 87:085cde657901 700
mbed_official 87:085cde657901 701 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 702
mbed_official 87:085cde657901 703 /* Process Unlocked */
mbed_official 87:085cde657901 704 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 705
mbed_official 87:085cde657901 706 return HAL_OK;
mbed_official 87:085cde657901 707 }
mbed_official 87:085cde657901 708 else
mbed_official 87:085cde657901 709 {
mbed_official 87:085cde657901 710 return HAL_BUSY;
mbed_official 87:085cde657901 711 }
mbed_official 87:085cde657901 712 }
mbed_official 87:085cde657901 713
mbed_official 87:085cde657901 714 /**
mbed_official 87:085cde657901 715 * @brief Transmits an amount of data in no-blocking mode with Interrupt.
mbed_official 226:b062af740e40 716 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 717 * the configuration information for SAI module.
mbed_official 87:085cde657901 718 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 719 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 720 * @retval HAL status
mbed_official 87:085cde657901 721 */
mbed_official 87:085cde657901 722 HAL_StatusTypeDef HAL_SAI_Transmit_IT(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size)
mbed_official 87:085cde657901 723 {
mbed_official 87:085cde657901 724 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 725 {
mbed_official 384:ef87175507f1 726 if((pData == HAL_NULL) || (Size == 0))
mbed_official 87:085cde657901 727 {
mbed_official 87:085cde657901 728 return HAL_ERROR;
mbed_official 87:085cde657901 729 }
mbed_official 87:085cde657901 730
mbed_official 87:085cde657901 731 hsai->pTxBuffPtr = pData;
mbed_official 87:085cde657901 732 hsai->TxXferSize = Size;
mbed_official 87:085cde657901 733 hsai->TxXferCount = Size;
mbed_official 87:085cde657901 734
mbed_official 87:085cde657901 735 /* Process Locked */
mbed_official 87:085cde657901 736 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 737
mbed_official 87:085cde657901 738 hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official 87:085cde657901 739
mbed_official 87:085cde657901 740 /* Transmit data */
mbed_official 87:085cde657901 741 hsai->Instance->DR = (*hsai->pTxBuffPtr++);
mbed_official 87:085cde657901 742 hsai->TxXferCount--;
mbed_official 87:085cde657901 743
mbed_official 87:085cde657901 744 /* Process Unlocked */
mbed_official 87:085cde657901 745 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 746
mbed_official 87:085cde657901 747 /* Enable FRQ and OVRUDR interrupts */
mbed_official 87:085cde657901 748 __HAL_SAI_ENABLE_IT(hsai, (SAI_IT_FREQ | SAI_IT_OVRUDR));
mbed_official 87:085cde657901 749
mbed_official 87:085cde657901 750 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 751 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 752 {
mbed_official 87:085cde657901 753 /* Enable SAI peripheral */
mbed_official 87:085cde657901 754 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 755 }
mbed_official 87:085cde657901 756
mbed_official 87:085cde657901 757
mbed_official 87:085cde657901 758 return HAL_OK;
mbed_official 87:085cde657901 759 }
mbed_official 87:085cde657901 760 else if(hsai->State == HAL_SAI_STATE_BUSY_TX)
mbed_official 87:085cde657901 761 {
mbed_official 87:085cde657901 762 /* Process Locked */
mbed_official 87:085cde657901 763 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 764
mbed_official 87:085cde657901 765 /* Transmit data */
mbed_official 87:085cde657901 766 hsai->Instance->DR = (*hsai->pTxBuffPtr++);
mbed_official 87:085cde657901 767
mbed_official 87:085cde657901 768 hsai->TxXferCount--;
mbed_official 87:085cde657901 769
mbed_official 87:085cde657901 770 if(hsai->TxXferCount == 0)
mbed_official 87:085cde657901 771 {
mbed_official 87:085cde657901 772 /* Disable FREQ and OVRUDR interrupts */
mbed_official 87:085cde657901 773 __HAL_SAI_DISABLE_IT(hsai, (SAI_IT_FREQ | SAI_IT_OVRUDR));
mbed_official 87:085cde657901 774
mbed_official 87:085cde657901 775 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 776
mbed_official 87:085cde657901 777 HAL_SAI_TxCpltCallback(hsai);
mbed_official 87:085cde657901 778 }
mbed_official 87:085cde657901 779
mbed_official 87:085cde657901 780 /* Process Unlocked */
mbed_official 87:085cde657901 781 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 782
mbed_official 87:085cde657901 783 return HAL_OK;
mbed_official 87:085cde657901 784 }
mbed_official 87:085cde657901 785
mbed_official 87:085cde657901 786 else
mbed_official 87:085cde657901 787 {
mbed_official 87:085cde657901 788 return HAL_BUSY;
mbed_official 87:085cde657901 789 }
mbed_official 87:085cde657901 790 }
mbed_official 87:085cde657901 791
mbed_official 87:085cde657901 792 /**
mbed_official 87:085cde657901 793 * @brief Receives an amount of data in no-blocking mode with Interrupt.
mbed_official 226:b062af740e40 794 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 795 * the configuration information for SAI module.
mbed_official 87:085cde657901 796 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 797 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 798 * @retval HAL status
mbed_official 87:085cde657901 799 */
mbed_official 87:085cde657901 800 HAL_StatusTypeDef HAL_SAI_Receive_IT(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size)
mbed_official 87:085cde657901 801 {
mbed_official 87:085cde657901 802 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 803 {
mbed_official 384:ef87175507f1 804 if((pData == HAL_NULL) || (Size == 0))
mbed_official 87:085cde657901 805 {
mbed_official 87:085cde657901 806 return HAL_ERROR;
mbed_official 87:085cde657901 807 }
mbed_official 87:085cde657901 808
mbed_official 87:085cde657901 809 hsai->pRxBuffPtr = pData;
mbed_official 87:085cde657901 810 hsai->RxXferSize = Size;
mbed_official 87:085cde657901 811 hsai->RxXferCount = Size;
mbed_official 87:085cde657901 812
mbed_official 87:085cde657901 813 /* Process Locked */
mbed_official 87:085cde657901 814 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 815
mbed_official 87:085cde657901 816 hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official 87:085cde657901 817
mbed_official 87:085cde657901 818 /* Enable TXE and OVRUDR interrupts */
mbed_official 87:085cde657901 819 __HAL_SAI_ENABLE_IT(hsai, (SAI_IT_FREQ | SAI_IT_OVRUDR));
mbed_official 87:085cde657901 820
mbed_official 87:085cde657901 821 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 822 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 823 {
mbed_official 87:085cde657901 824 /* Enable SAI peripheral */
mbed_official 87:085cde657901 825 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 826 }
mbed_official 87:085cde657901 827
mbed_official 87:085cde657901 828 /* Process Unlocked */
mbed_official 87:085cde657901 829 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 830
mbed_official 87:085cde657901 831 return HAL_OK;
mbed_official 87:085cde657901 832 }
mbed_official 87:085cde657901 833 else if(hsai->State == HAL_SAI_STATE_BUSY_RX)
mbed_official 87:085cde657901 834 {
mbed_official 87:085cde657901 835 /* Process Locked */
mbed_official 87:085cde657901 836 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 837
mbed_official 87:085cde657901 838 /* Receive data */
mbed_official 87:085cde657901 839 (*hsai->pRxBuffPtr++) = hsai->Instance->DR;
mbed_official 87:085cde657901 840
mbed_official 87:085cde657901 841 hsai->RxXferCount--;
mbed_official 87:085cde657901 842
mbed_official 87:085cde657901 843 if(hsai->RxXferCount == 0)
mbed_official 87:085cde657901 844 {
mbed_official 87:085cde657901 845 /* Disable TXE and OVRUDR interrupts */
mbed_official 87:085cde657901 846 __HAL_SAI_DISABLE_IT(hsai, (SAI_IT_FREQ | SAI_IT_OVRUDR));
mbed_official 87:085cde657901 847
mbed_official 87:085cde657901 848 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 849 HAL_SAI_RxCpltCallback(hsai);
mbed_official 87:085cde657901 850 }
mbed_official 87:085cde657901 851
mbed_official 87:085cde657901 852 /* Process Unlocked */
mbed_official 87:085cde657901 853 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 854
mbed_official 87:085cde657901 855 return HAL_OK;
mbed_official 87:085cde657901 856 }
mbed_official 87:085cde657901 857
mbed_official 87:085cde657901 858 else
mbed_official 87:085cde657901 859 {
mbed_official 87:085cde657901 860 return HAL_BUSY;
mbed_official 87:085cde657901 861 }
mbed_official 87:085cde657901 862 }
mbed_official 87:085cde657901 863
mbed_official 87:085cde657901 864 /**
mbed_official 87:085cde657901 865 * @brief Pauses the audio stream playing from the Media.
mbed_official 226:b062af740e40 866 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 867 * the configuration information for SAI module.
mbed_official 226:b062af740e40 868 * @retval HAL status
mbed_official 87:085cde657901 869 */
mbed_official 87:085cde657901 870 HAL_StatusTypeDef HAL_SAI_DMAPause(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 871 {
mbed_official 87:085cde657901 872 /* Process Locked */
mbed_official 87:085cde657901 873 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 874
mbed_official 87:085cde657901 875 /* Pause the audio file playing by disabling the SAI DMA requests */
mbed_official 87:085cde657901 876 hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
mbed_official 87:085cde657901 877
mbed_official 87:085cde657901 878
mbed_official 87:085cde657901 879 /* Process Unlocked */
mbed_official 87:085cde657901 880 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 881
mbed_official 87:085cde657901 882 return HAL_OK;
mbed_official 87:085cde657901 883 }
mbed_official 87:085cde657901 884
mbed_official 87:085cde657901 885 /**
mbed_official 87:085cde657901 886 * @brief Resumes the audio stream playing from the Media.
mbed_official 226:b062af740e40 887 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 888 * the configuration information for SAI module.
mbed_official 226:b062af740e40 889 * @retval HAL status
mbed_official 87:085cde657901 890 */
mbed_official 87:085cde657901 891 HAL_StatusTypeDef HAL_SAI_DMAResume(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 892 {
mbed_official 87:085cde657901 893 /* Process Locked */
mbed_official 87:085cde657901 894 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 895
mbed_official 87:085cde657901 896 /* Enable the SAI DMA requests */
mbed_official 87:085cde657901 897 hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
mbed_official 87:085cde657901 898
mbed_official 87:085cde657901 899
mbed_official 87:085cde657901 900 /* If the SAI peripheral is still not enabled, enable it */
mbed_official 87:085cde657901 901 if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == 0)
mbed_official 87:085cde657901 902 {
mbed_official 87:085cde657901 903 /* Enable SAI peripheral */
mbed_official 87:085cde657901 904 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 905 }
mbed_official 87:085cde657901 906
mbed_official 87:085cde657901 907 /* Process Unlocked */
mbed_official 87:085cde657901 908 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 909
mbed_official 87:085cde657901 910 return HAL_OK;
mbed_official 87:085cde657901 911 }
mbed_official 87:085cde657901 912
mbed_official 87:085cde657901 913 /**
mbed_official 226:b062af740e40 914 * @brief Stops the audio stream playing from the Media.
mbed_official 226:b062af740e40 915 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 916 * the configuration information for SAI module.
mbed_official 226:b062af740e40 917 * @retval HAL status
mbed_official 87:085cde657901 918 */
mbed_official 87:085cde657901 919 HAL_StatusTypeDef HAL_SAI_DMAStop(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 920 {
mbed_official 87:085cde657901 921 /* Process Locked */
mbed_official 87:085cde657901 922 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 923
mbed_official 87:085cde657901 924 /* Disable the SAI DMA request */
mbed_official 87:085cde657901 925 hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
mbed_official 87:085cde657901 926
mbed_official 106:ced8cbb51063 927 /* Abort the SAI DMA Tx Stream */
mbed_official 384:ef87175507f1 928 if(hsai->hdmatx != HAL_NULL)
mbed_official 106:ced8cbb51063 929 {
mbed_official 106:ced8cbb51063 930 HAL_DMA_Abort(hsai->hdmatx);
mbed_official 106:ced8cbb51063 931 }
mbed_official 106:ced8cbb51063 932 /* Abort the SAI DMA Rx Stream */
mbed_official 384:ef87175507f1 933 if(hsai->hdmarx != HAL_NULL)
mbed_official 106:ced8cbb51063 934 {
mbed_official 106:ced8cbb51063 935 HAL_DMA_Abort(hsai->hdmarx);
mbed_official 106:ced8cbb51063 936 }
mbed_official 106:ced8cbb51063 937
mbed_official 87:085cde657901 938 /* Disable SAI peripheral */
mbed_official 87:085cde657901 939 __HAL_SAI_DISABLE(hsai);
mbed_official 87:085cde657901 940
mbed_official 87:085cde657901 941 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 942
mbed_official 87:085cde657901 943 /* Process Unlocked */
mbed_official 87:085cde657901 944 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 945
mbed_official 87:085cde657901 946 return HAL_OK;
mbed_official 87:085cde657901 947 }
mbed_official 87:085cde657901 948 /**
mbed_official 87:085cde657901 949 * @brief Transmits an amount of data in no-blocking mode with DMA.
mbed_official 226:b062af740e40 950 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 951 * the configuration information for SAI module.
mbed_official 87:085cde657901 952 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 953 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 954 * @retval HAL status
mbed_official 87:085cde657901 955 */
mbed_official 87:085cde657901 956 HAL_StatusTypeDef HAL_SAI_Transmit_DMA(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size)
mbed_official 87:085cde657901 957 {
mbed_official 87:085cde657901 958 uint32_t *tmp;
mbed_official 87:085cde657901 959
mbed_official 384:ef87175507f1 960 if((pData == HAL_NULL) || (Size == 0))
mbed_official 87:085cde657901 961 {
mbed_official 87:085cde657901 962 return HAL_ERROR;
mbed_official 87:085cde657901 963 }
mbed_official 87:085cde657901 964
mbed_official 87:085cde657901 965 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 966 {
mbed_official 87:085cde657901 967 hsai->pTxBuffPtr = pData;
mbed_official 87:085cde657901 968 hsai->TxXferSize = Size;
mbed_official 87:085cde657901 969 hsai->TxXferCount = Size;
mbed_official 87:085cde657901 970
mbed_official 87:085cde657901 971 /* Process Locked */
mbed_official 87:085cde657901 972 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 973
mbed_official 87:085cde657901 974 hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official 87:085cde657901 975
mbed_official 87:085cde657901 976 /* Set the SAI Tx DMA Half transfert complete callback */
mbed_official 87:085cde657901 977 hsai->hdmatx->XferHalfCpltCallback = SAI_DMATxHalfCplt;
mbed_official 87:085cde657901 978
mbed_official 87:085cde657901 979 /* Set the SAI TxDMA transfer complete callback */
mbed_official 87:085cde657901 980 hsai->hdmatx->XferCpltCallback = SAI_DMATxCplt;
mbed_official 87:085cde657901 981
mbed_official 87:085cde657901 982 /* Set the DMA error callback */
mbed_official 87:085cde657901 983 hsai->hdmatx->XferErrorCallback = SAI_DMAError;
mbed_official 87:085cde657901 984
mbed_official 87:085cde657901 985 /* Enable the Tx DMA Stream */
mbed_official 87:085cde657901 986 tmp = (uint32_t*)&pData;
mbed_official 87:085cde657901 987 HAL_DMA_Start_IT(hsai->hdmatx, *(uint32_t*)tmp, (uint32_t)&hsai->Instance->DR, hsai->TxXferSize);
mbed_official 87:085cde657901 988
mbed_official 87:085cde657901 989 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 990 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 991 {
mbed_official 87:085cde657901 992 /* Enable SAI peripheral */
mbed_official 87:085cde657901 993 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 994 }
mbed_official 87:085cde657901 995
mbed_official 87:085cde657901 996 /* Enable SAI Tx DMA Request */
mbed_official 87:085cde657901 997 hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
mbed_official 87:085cde657901 998
mbed_official 87:085cde657901 999 /* Process Unlocked */
mbed_official 87:085cde657901 1000 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 1001
mbed_official 87:085cde657901 1002 return HAL_OK;
mbed_official 87:085cde657901 1003 }
mbed_official 87:085cde657901 1004 else
mbed_official 87:085cde657901 1005 {
mbed_official 87:085cde657901 1006 return HAL_BUSY;
mbed_official 87:085cde657901 1007 }
mbed_official 87:085cde657901 1008 }
mbed_official 87:085cde657901 1009
mbed_official 87:085cde657901 1010 /**
mbed_official 226:b062af740e40 1011 * @brief Receives an amount of data in no-blocking mode with DMA.
mbed_official 226:b062af740e40 1012 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1013 * the configuration information for SAI module.
mbed_official 87:085cde657901 1014 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 1015 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 1016 * @retval HAL status
mbed_official 87:085cde657901 1017 */
mbed_official 87:085cde657901 1018 HAL_StatusTypeDef HAL_SAI_Receive_DMA(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size)
mbed_official 87:085cde657901 1019 {
mbed_official 87:085cde657901 1020 uint32_t *tmp;
mbed_official 87:085cde657901 1021
mbed_official 384:ef87175507f1 1022 if((pData == HAL_NULL) || (Size == 0))
mbed_official 87:085cde657901 1023 {
mbed_official 87:085cde657901 1024 return HAL_ERROR;
mbed_official 87:085cde657901 1025 }
mbed_official 87:085cde657901 1026
mbed_official 87:085cde657901 1027 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 1028 {
mbed_official 87:085cde657901 1029 hsai->pRxBuffPtr = pData;
mbed_official 87:085cde657901 1030 hsai->RxXferSize = Size;
mbed_official 87:085cde657901 1031 hsai->RxXferCount = Size;
mbed_official 87:085cde657901 1032
mbed_official 87:085cde657901 1033 /* Process Locked */
mbed_official 87:085cde657901 1034 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 1035
mbed_official 87:085cde657901 1036 hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official 87:085cde657901 1037
mbed_official 87:085cde657901 1038 /* Set the SAI Rx DMA Half transfert complete callback */
mbed_official 87:085cde657901 1039 hsai->hdmarx->XferHalfCpltCallback = SAI_DMARxHalfCplt;
mbed_official 87:085cde657901 1040
mbed_official 87:085cde657901 1041 /* Set the SAI Rx DMA transfert complete callback */
mbed_official 87:085cde657901 1042 hsai->hdmarx->XferCpltCallback = SAI_DMARxCplt;
mbed_official 87:085cde657901 1043
mbed_official 87:085cde657901 1044 /* Set the DMA error callback */
mbed_official 87:085cde657901 1045 hsai->hdmarx->XferErrorCallback = SAI_DMAError;
mbed_official 87:085cde657901 1046
mbed_official 87:085cde657901 1047 /* Enable the Rx DMA Stream */
mbed_official 87:085cde657901 1048 tmp = (uint32_t*)&pData;
mbed_official 87:085cde657901 1049 HAL_DMA_Start_IT(hsai->hdmarx, (uint32_t)&hsai->Instance->DR, *(uint32_t*)tmp, hsai->RxXferSize);
mbed_official 87:085cde657901 1050
mbed_official 87:085cde657901 1051 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 1052 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 1053 {
mbed_official 87:085cde657901 1054 /* Enable SAI peripheral */
mbed_official 87:085cde657901 1055 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 1056 }
mbed_official 87:085cde657901 1057
mbed_official 87:085cde657901 1058 /* Enable SAI Rx DMA Request */
mbed_official 87:085cde657901 1059 hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
mbed_official 87:085cde657901 1060
mbed_official 87:085cde657901 1061 /* Process Unlocked */
mbed_official 87:085cde657901 1062 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 1063
mbed_official 87:085cde657901 1064 return HAL_OK;
mbed_official 87:085cde657901 1065 }
mbed_official 87:085cde657901 1066 else
mbed_official 87:085cde657901 1067 {
mbed_official 87:085cde657901 1068 return HAL_BUSY;
mbed_official 87:085cde657901 1069 }
mbed_official 87:085cde657901 1070 }
mbed_official 87:085cde657901 1071
mbed_official 87:085cde657901 1072 /**
mbed_official 87:085cde657901 1073 * @brief This function handles SAI interrupt request.
mbed_official 226:b062af740e40 1074 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1075 * the configuration information for SAI module.
mbed_official 87:085cde657901 1076 * @retval HAL status
mbed_official 87:085cde657901 1077 */
mbed_official 87:085cde657901 1078 void HAL_SAI_IRQHandler(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1079 {
mbed_official 87:085cde657901 1080 uint32_t tmp1 = 0, tmp2 = 0;
mbed_official 87:085cde657901 1081
mbed_official 87:085cde657901 1082 if(hsai->State == HAL_SAI_STATE_BUSY_RX)
mbed_official 87:085cde657901 1083 {
mbed_official 87:085cde657901 1084 tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ);
mbed_official 87:085cde657901 1085 tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_FREQ);
mbed_official 87:085cde657901 1086 /* SAI in mode Receiver --------------------------------------------------*/
mbed_official 87:085cde657901 1087 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1088 {
mbed_official 384:ef87175507f1 1089 HAL_SAI_Receive_IT(hsai, HAL_NULL, 0);
mbed_official 87:085cde657901 1090 }
mbed_official 87:085cde657901 1091
mbed_official 87:085cde657901 1092 tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official 87:085cde657901 1093 tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_OVRUDR);
mbed_official 87:085cde657901 1094 /* SAI Overrun error interrupt occurred ----------------------------------*/
mbed_official 87:085cde657901 1095 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1096 {
mbed_official 87:085cde657901 1097 /* Change the SAI error code */
mbed_official 87:085cde657901 1098 hsai->ErrorCode = HAL_SAI_ERROR_OVR;
mbed_official 87:085cde657901 1099
mbed_official 87:085cde657901 1100 /* Clear the SAI Overrun flag */
mbed_official 87:085cde657901 1101 __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official 87:085cde657901 1102 /* Set the SAI state ready to be able to start again the process */
mbed_official 87:085cde657901 1103 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 1104 HAL_SAI_ErrorCallback(hsai);
mbed_official 87:085cde657901 1105 }
mbed_official 87:085cde657901 1106 }
mbed_official 87:085cde657901 1107
mbed_official 87:085cde657901 1108 if(hsai->State == HAL_SAI_STATE_BUSY_TX)
mbed_official 87:085cde657901 1109 {
mbed_official 87:085cde657901 1110 tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ);
mbed_official 87:085cde657901 1111 tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_FREQ);
mbed_official 87:085cde657901 1112 /* SAI in mode Transmitter -----------------------------------------------*/
mbed_official 87:085cde657901 1113 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1114 {
mbed_official 384:ef87175507f1 1115 HAL_SAI_Transmit_IT(hsai, HAL_NULL, 0);
mbed_official 87:085cde657901 1116 }
mbed_official 87:085cde657901 1117
mbed_official 87:085cde657901 1118 tmp1 = __HAL_SAI_GET_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official 87:085cde657901 1119 tmp2 = __HAL_SAI_GET_IT_SOURCE(hsai, SAI_IT_OVRUDR);
mbed_official 87:085cde657901 1120 /* SAI Underrun error interrupt occurred ---------------------------------*/
mbed_official 87:085cde657901 1121 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1122 {
mbed_official 87:085cde657901 1123 /* Change the SAI error code */
mbed_official 87:085cde657901 1124 hsai->ErrorCode = HAL_SAI_ERROR_UDR;
mbed_official 87:085cde657901 1125
mbed_official 87:085cde657901 1126 /* Clear the SAI Underrun flag */
mbed_official 87:085cde657901 1127 __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
mbed_official 87:085cde657901 1128 /* Set the SAI state ready to be able to start again the process */
mbed_official 87:085cde657901 1129 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 1130 HAL_SAI_ErrorCallback(hsai);
mbed_official 87:085cde657901 1131 }
mbed_official 87:085cde657901 1132 }
mbed_official 87:085cde657901 1133 }
mbed_official 87:085cde657901 1134
mbed_official 87:085cde657901 1135 /**
mbed_official 87:085cde657901 1136 * @brief Tx Transfer completed callbacks.
mbed_official 226:b062af740e40 1137 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1138 * the configuration information for SAI module.
mbed_official 87:085cde657901 1139 * @retval None
mbed_official 87:085cde657901 1140 */
mbed_official 87:085cde657901 1141 __weak void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1142 {
mbed_official 87:085cde657901 1143 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1144 the HAL_SAI_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1145 */
mbed_official 87:085cde657901 1146 }
mbed_official 87:085cde657901 1147
mbed_official 87:085cde657901 1148 /**
mbed_official 87:085cde657901 1149 * @brief Tx Transfer Half completed callbacks
mbed_official 226:b062af740e40 1150 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1151 * the configuration information for SAI module.
mbed_official 87:085cde657901 1152 * @retval None
mbed_official 87:085cde657901 1153 */
mbed_official 87:085cde657901 1154 __weak void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1155 {
mbed_official 87:085cde657901 1156 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1157 the HAL_SAI_TxHalfCpltCallback could be implenetd in the user file
mbed_official 87:085cde657901 1158 */
mbed_official 87:085cde657901 1159 }
mbed_official 87:085cde657901 1160
mbed_official 87:085cde657901 1161 /**
mbed_official 87:085cde657901 1162 * @brief Rx Transfer completed callbacks.
mbed_official 226:b062af740e40 1163 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1164 * the configuration information for SAI module.
mbed_official 87:085cde657901 1165 * @retval None
mbed_official 87:085cde657901 1166 */
mbed_official 87:085cde657901 1167 __weak void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1168 {
mbed_official 87:085cde657901 1169 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1170 the HAL_SAI_RxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1171 */
mbed_official 87:085cde657901 1172 }
mbed_official 87:085cde657901 1173
mbed_official 87:085cde657901 1174 /**
mbed_official 87:085cde657901 1175 * @brief Rx Transfer half completed callbacks
mbed_official 226:b062af740e40 1176 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1177 * the configuration information for SAI module.
mbed_official 87:085cde657901 1178 * @retval None
mbed_official 87:085cde657901 1179 */
mbed_official 87:085cde657901 1180 __weak void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1181 {
mbed_official 87:085cde657901 1182 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1183 the HAL_SAI_RxCpltCallback could be implenetd in the user file
mbed_official 87:085cde657901 1184 */
mbed_official 87:085cde657901 1185 }
mbed_official 87:085cde657901 1186
mbed_official 87:085cde657901 1187 /**
mbed_official 87:085cde657901 1188 * @brief SAI error callbacks.
mbed_official 226:b062af740e40 1189 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1190 * the configuration information for SAI module.
mbed_official 87:085cde657901 1191 * @retval None
mbed_official 87:085cde657901 1192 */
mbed_official 87:085cde657901 1193 __weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1194 {
mbed_official 87:085cde657901 1195 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1196 the HAL_SAI_ErrorCallback could be implemented in the user file
mbed_official 87:085cde657901 1197 */
mbed_official 87:085cde657901 1198 }
mbed_official 87:085cde657901 1199
mbed_official 87:085cde657901 1200 /**
mbed_official 87:085cde657901 1201 * @}
mbed_official 87:085cde657901 1202 */
mbed_official 87:085cde657901 1203
mbed_official 87:085cde657901 1204
mbed_official 87:085cde657901 1205 /** @defgroup SAI_Group3 Peripheral State functions
mbed_official 87:085cde657901 1206 * @brief Peripheral State functions
mbed_official 87:085cde657901 1207 *
mbed_official 87:085cde657901 1208 @verbatim
mbed_official 87:085cde657901 1209 ===============================================================================
mbed_official 87:085cde657901 1210 ##### Peripheral State and Errors functions #####
mbed_official 87:085cde657901 1211 ===============================================================================
mbed_official 87:085cde657901 1212 [..]
mbed_official 226:b062af740e40 1213 This subsection permits to get in run-time the status of the peripheral
mbed_official 87:085cde657901 1214 and the data flow.
mbed_official 87:085cde657901 1215
mbed_official 87:085cde657901 1216 @endverbatim
mbed_official 87:085cde657901 1217 * @{
mbed_official 87:085cde657901 1218 */
mbed_official 87:085cde657901 1219
mbed_official 87:085cde657901 1220 /**
mbed_official 87:085cde657901 1221 * @brief Returns the SAI state.
mbed_official 226:b062af740e40 1222 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1223 * the configuration information for SAI module.
mbed_official 87:085cde657901 1224 * @retval HAL state
mbed_official 87:085cde657901 1225 */
mbed_official 87:085cde657901 1226 HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1227 {
mbed_official 87:085cde657901 1228 return hsai->State;
mbed_official 87:085cde657901 1229 }
mbed_official 87:085cde657901 1230
mbed_official 87:085cde657901 1231 /**
mbed_official 87:085cde657901 1232 * @brief Return the SAI error code
mbed_official 87:085cde657901 1233 * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
mbed_official 87:085cde657901 1234 * the configuration information for the specified SAI Block.
mbed_official 87:085cde657901 1235 * @retval SAI Error Code
mbed_official 87:085cde657901 1236 */
mbed_official 87:085cde657901 1237 uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 1238 {
mbed_official 87:085cde657901 1239 return hsai->ErrorCode;
mbed_official 87:085cde657901 1240 }
mbed_official 87:085cde657901 1241 /**
mbed_official 87:085cde657901 1242 * @}
mbed_official 87:085cde657901 1243 */
mbed_official 87:085cde657901 1244
mbed_official 87:085cde657901 1245 /**
mbed_official 87:085cde657901 1246 * @brief DMA SAI transmit process complete callback.
mbed_official 226:b062af740e40 1247 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1248 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1249 * @retval None
mbed_official 87:085cde657901 1250 */
mbed_official 87:085cde657901 1251 static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1252 {
mbed_official 369:2e96f1b71984 1253 uint32_t tickstart = 0;
mbed_official 87:085cde657901 1254
mbed_official 106:ced8cbb51063 1255 SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 106:ced8cbb51063 1256
mbed_official 106:ced8cbb51063 1257 if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
mbed_official 106:ced8cbb51063 1258 {
mbed_official 106:ced8cbb51063 1259 hsai->TxXferCount = 0;
mbed_official 106:ced8cbb51063 1260 hsai->RxXferCount = 0;
mbed_official 106:ced8cbb51063 1261
mbed_official 106:ced8cbb51063 1262 /* Disable SAI Tx DMA Request */
mbed_official 106:ced8cbb51063 1263 hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
mbed_official 106:ced8cbb51063 1264
mbed_official 369:2e96f1b71984 1265 /* Get tick */
mbed_official 369:2e96f1b71984 1266 tickstart = HAL_GetTick();
mbed_official 369:2e96f1b71984 1267
mbed_official 106:ced8cbb51063 1268 /* Set timeout: 10 is the max delay to send the remaining data in the SAI FIFO */
mbed_official 106:ced8cbb51063 1269 /* Wait until FIFO is empty */
mbed_official 106:ced8cbb51063 1270 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FLVL) != RESET)
mbed_official 106:ced8cbb51063 1271 {
mbed_official 106:ced8cbb51063 1272 /* Check for the Timeout */
mbed_official 369:2e96f1b71984 1273 if((HAL_GetTick() - tickstart ) > SAI_TIMEOUT_VALUE)
mbed_official 106:ced8cbb51063 1274 {
mbed_official 106:ced8cbb51063 1275 /* Update error code */
mbed_official 106:ced8cbb51063 1276 hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
mbed_official 106:ced8cbb51063 1277
mbed_official 106:ced8cbb51063 1278 /* Change the SAI state */
mbed_official 106:ced8cbb51063 1279 HAL_SAI_ErrorCallback(hsai);
mbed_official 106:ced8cbb51063 1280 }
mbed_official 106:ced8cbb51063 1281 }
mbed_official 106:ced8cbb51063 1282
mbed_official 106:ced8cbb51063 1283 hsai->State= HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 1284 }
mbed_official 87:085cde657901 1285 HAL_SAI_TxCpltCallback(hsai);
mbed_official 87:085cde657901 1286 }
mbed_official 87:085cde657901 1287
mbed_official 87:085cde657901 1288 /**
mbed_official 87:085cde657901 1289 * @brief DMA SAI transmit process half complete callback
mbed_official 226:b062af740e40 1290 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1291 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1292 * @retval None
mbed_official 87:085cde657901 1293 */
mbed_official 87:085cde657901 1294 static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1295 {
mbed_official 87:085cde657901 1296 SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1297
mbed_official 87:085cde657901 1298 HAL_SAI_TxHalfCpltCallback(hsai);
mbed_official 87:085cde657901 1299 }
mbed_official 87:085cde657901 1300
mbed_official 87:085cde657901 1301 /**
mbed_official 87:085cde657901 1302 * @brief DMA SAI receive process complete callback.
mbed_official 226:b062af740e40 1303 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1304 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1305 * @retval None
mbed_official 87:085cde657901 1306 */
mbed_official 87:085cde657901 1307 static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1308 {
mbed_official 87:085cde657901 1309 SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 106:ced8cbb51063 1310 if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
mbed_official 106:ced8cbb51063 1311 {
mbed_official 106:ced8cbb51063 1312 /* Disable Rx DMA Request */
mbed_official 106:ced8cbb51063 1313 hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
mbed_official 106:ced8cbb51063 1314 hsai->RxXferCount = 0;
mbed_official 106:ced8cbb51063 1315
mbed_official 106:ced8cbb51063 1316 hsai->State = HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 1317 }
mbed_official 87:085cde657901 1318 HAL_SAI_RxCpltCallback(hsai);
mbed_official 87:085cde657901 1319 }
mbed_official 87:085cde657901 1320
mbed_official 87:085cde657901 1321 /**
mbed_official 87:085cde657901 1322 * @brief DMA SAI receive process half complete callback
mbed_official 226:b062af740e40 1323 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1324 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1325 * @retval None
mbed_official 87:085cde657901 1326 */
mbed_official 87:085cde657901 1327 static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1328 {
mbed_official 87:085cde657901 1329 SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1330
mbed_official 87:085cde657901 1331 HAL_SAI_RxHalfCpltCallback(hsai);
mbed_official 87:085cde657901 1332 }
mbed_official 87:085cde657901 1333 /**
mbed_official 87:085cde657901 1334 * @brief DMA SAI communication error callback.
mbed_official 226:b062af740e40 1335 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1336 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1337 * @retval None
mbed_official 87:085cde657901 1338 */
mbed_official 87:085cde657901 1339 static void SAI_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1340 {
mbed_official 87:085cde657901 1341 SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1342 /* Set the SAI state ready to be able to start again the process */
mbed_official 87:085cde657901 1343 hsai->State= HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 1344 HAL_SAI_ErrorCallback(hsai);
mbed_official 87:085cde657901 1345
mbed_official 87:085cde657901 1346 hsai->TxXferCount = 0;
mbed_official 87:085cde657901 1347 hsai->RxXferCount = 0;
mbed_official 87:085cde657901 1348 }
mbed_official 87:085cde657901 1349
mbed_official 87:085cde657901 1350 /**
mbed_official 87:085cde657901 1351 * @}
mbed_official 87:085cde657901 1352 */
mbed_official 87:085cde657901 1353
mbed_official 87:085cde657901 1354 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
mbed_official 87:085cde657901 1355 #endif /* HAL_SAI_MODULE_ENABLED */
mbed_official 87:085cde657901 1356 /**
mbed_official 87:085cde657901 1357 * @}
mbed_official 87:085cde657901 1358 */
mbed_official 87:085cde657901 1359
mbed_official 87:085cde657901 1360 /**
mbed_official 87:085cde657901 1361 * @}
mbed_official 87:085cde657901 1362 */
mbed_official 87:085cde657901 1363
mbed_official 87:085cde657901 1364 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/