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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_sai.c@274:6937b19af361, 2014-08-06 (annotated)

Committer:
mbed_official
Date:
Wed Aug 06 08:15:07 2014 +0100
Revision:
274:6937b19af361
Parent:
226:b062af740e40
Child:
369:2e96f1b71984
Synchronized with git revision 5b145e4f6c509376173c3ea2aa35a6da879a2124



Full URL: https://github.com/mbedmicro/mbed/commit/5b145e4f6c509376173c3ea2aa35a6da879a2124/



[TARGET_LPC11UXX] PeripheralNames.h and PinMap definitions separation for LPC11UXX platforms

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 226:b062af740e40 5 * @version V1.1.0RC2
mbed_official 226:b062af740e40 6 * @date 14-May-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 87:085cde657901 177 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 178 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 179 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 180 static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 181 static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 182 static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 183 static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 184 static void SAI_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 185
mbed_official 87:085cde657901 186 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 187
mbed_official 87:085cde657901 188 /** @defgroup SAI_Private_Functions
mbed_official 87:085cde657901 189 * @{
mbed_official 87:085cde657901 190 */
mbed_official 87:085cde657901 191
mbed_official 87:085cde657901 192 /** @defgroup SAI_Group1 Initialization and de-initialization functions
mbed_official 87:085cde657901 193 * @brief Initialization and Configuration functions
mbed_official 87:085cde657901 194 *
mbed_official 87:085cde657901 195 @verbatim
mbed_official 87:085cde657901 196 ===============================================================================
mbed_official 87:085cde657901 197 ##### Initialization and de-initialization functions #####
mbed_official 87:085cde657901 198 ===============================================================================
mbed_official 87:085cde657901 199 [..] This subsection provides a set of functions allowing to initialize and
mbed_official 87:085cde657901 200 de-initialize the SAIx peripheral:
mbed_official 87:085cde657901 201
mbed_official 226:b062af740e40 202 (+) User must implement HAL_SAI_MspInit() function in which he configures
mbed_official 87:085cde657901 203 all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
mbed_official 87:085cde657901 204
mbed_official 87:085cde657901 205 (+) Call the function HAL_SAI_Init() to configure the selected device with
mbed_official 87:085cde657901 206 the selected configuration:
mbed_official 87:085cde657901 207 (++) Mode (Master/slave TX/RX)
mbed_official 87:085cde657901 208 (++) Protocol
mbed_official 87:085cde657901 209 (++) Data Size
mbed_official 87:085cde657901 210 (++) MCLK Output
mbed_official 87:085cde657901 211 (++) Audio frequency
mbed_official 87:085cde657901 212 (++) FIFO Threshold
mbed_official 87:085cde657901 213 (++) Frame Config
mbed_official 87:085cde657901 214 (++) Slot Config
mbed_official 87:085cde657901 215
mbed_official 87:085cde657901 216 (+) Call the function HAL_SAI_DeInit() to restore the default configuration
mbed_official 87:085cde657901 217 of the selected SAI peripheral.
mbed_official 87:085cde657901 218
mbed_official 87:085cde657901 219 @endverbatim
mbed_official 87:085cde657901 220 * @{
mbed_official 87:085cde657901 221 */
mbed_official 87:085cde657901 222
mbed_official 87:085cde657901 223 /**
mbed_official 87:085cde657901 224 * @brief Initializes the SAI according to the specified parameters
mbed_official 87:085cde657901 225 * in the SAI_InitTypeDef and create the associated handle.
mbed_official 226:b062af740e40 226 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 227 * the configuration information for SAI module.
mbed_official 87:085cde657901 228 * @retval HAL status
mbed_official 87:085cde657901 229 */
mbed_official 87:085cde657901 230 HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 231 {
mbed_official 87:085cde657901 232 uint32_t tmpreg = 0;
mbed_official 87:085cde657901 233 uint32_t tmpclock = 0, tmp2clock = 0;
mbed_official 87:085cde657901 234 /* This variable used to store the VCO Input (value in Hz) */
mbed_official 87:085cde657901 235 uint32_t vcoinput = 0;
mbed_official 87:085cde657901 236 /* This variable used to store the SAI_CK_x (value in Hz) */
mbed_official 87:085cde657901 237 uint32_t saiclocksource = 0;
mbed_official 87:085cde657901 238
mbed_official 87:085cde657901 239 /* Check the SAI handle allocation */
mbed_official 87:085cde657901 240 if(hsai == NULL)
mbed_official 87:085cde657901 241 {
mbed_official 87:085cde657901 242 return HAL_ERROR;
mbed_official 87:085cde657901 243 }
mbed_official 87:085cde657901 244
mbed_official 87:085cde657901 245 /* Check the SAI Block parameters */
mbed_official 87:085cde657901 246 assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol));
mbed_official 87:085cde657901 247 assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode));
mbed_official 87:085cde657901 248 assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize));
mbed_official 87:085cde657901 249 assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit));
mbed_official 87:085cde657901 250 assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing));
mbed_official 87:085cde657901 251 assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro));
mbed_official 87:085cde657901 252 assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive));
mbed_official 87:085cde657901 253 assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider));
mbed_official 87:085cde657901 254 assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold));
mbed_official 87:085cde657901 255 assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency));
mbed_official 87:085cde657901 256
mbed_official 87:085cde657901 257 /* Check the SAI Block Frame parameters */
mbed_official 87:085cde657901 258 assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength));
mbed_official 87:085cde657901 259 assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength));
mbed_official 87:085cde657901 260 assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition));
mbed_official 87:085cde657901 261 assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity));
mbed_official 87:085cde657901 262 assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset));
mbed_official 87:085cde657901 263
mbed_official 87:085cde657901 264 /* Check the SAI Block Slot parameters */
mbed_official 87:085cde657901 265 assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset));
mbed_official 87:085cde657901 266 assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize));
mbed_official 87:085cde657901 267 assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber));
mbed_official 87:085cde657901 268 assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive));
mbed_official 87:085cde657901 269
mbed_official 87:085cde657901 270 if(hsai->State == HAL_SAI_STATE_RESET)
mbed_official 87:085cde657901 271 {
mbed_official 87:085cde657901 272 /* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
mbed_official 87:085cde657901 273 HAL_SAI_MspInit(hsai);
mbed_official 87:085cde657901 274 }
mbed_official 87:085cde657901 275
mbed_official 87:085cde657901 276 hsai->State = HAL_SAI_STATE_BUSY;
mbed_official 87:085cde657901 277
mbed_official 87:085cde657901 278 /* Disable the selected SAI peripheral */
mbed_official 87:085cde657901 279 __HAL_SAI_DISABLE(hsai);
mbed_official 87:085cde657901 280
mbed_official 87:085cde657901 281 /* SAI Block Configuration ------------------------------------------------------------*/
mbed_official 87:085cde657901 282 /* SAI Block_x CR1 Configuration */
mbed_official 87:085cde657901 283 /* Get the SAI Block_x CR1 value */
mbed_official 87:085cde657901 284 tmpreg = hsai->Instance->CR1;
mbed_official 87:085cde657901 285 /* Clear MODE, PRTCFG, DS, LSBFIRST, CKSTR, SYNCEN, OUTDRIV, NODIV, and MCKDIV bits */
mbed_official 87:085cde657901 286 tmpreg &= CR1_CLEAR_MASK;
mbed_official 87:085cde657901 287 /* Configure SAI_Block_x: Audio Protocol, Data Size, first transmitted bit, Clock strobing
mbed_official 87:085cde657901 288 edge, Synchronization mode, Output drive, Master Divider and FIFO level */
mbed_official 87:085cde657901 289 /* Set PRTCFG bits according to Protocol value */
mbed_official 87:085cde657901 290 /* Set DS bits according to DataSize value */
mbed_official 87:085cde657901 291 /* Set LSBFIRST bit according to FirstBit value */
mbed_official 87:085cde657901 292 /* Set CKSTR bit according to ClockStrobing value */
mbed_official 87:085cde657901 293 /* Set SYNCEN bit according to Synchro value */
mbed_official 87:085cde657901 294 /* Set OUTDRIV bit according to OutputDrive value */
mbed_official 87:085cde657901 295 /* Set NODIV bit according to NoDivider value */
mbed_official 87:085cde657901 296 tmpreg |= (uint32_t)(hsai->Init.Protocol |
mbed_official 87:085cde657901 297 hsai->Init.AudioMode |
mbed_official 87:085cde657901 298 hsai->Init.DataSize |
mbed_official 87:085cde657901 299 hsai->Init.FirstBit |
mbed_official 87:085cde657901 300 hsai->Init.ClockStrobing |
mbed_official 87:085cde657901 301 hsai->Init.Synchro |
mbed_official 87:085cde657901 302 hsai->Init.OutputDrive |
mbed_official 87:085cde657901 303 hsai->Init.NoDivider);
mbed_official 87:085cde657901 304 /* Write to SAI_Block_x CR1 */
mbed_official 87:085cde657901 305 hsai->Instance->CR1 = tmpreg;
mbed_official 87:085cde657901 306
mbed_official 87:085cde657901 307 /* SAI Block_x CR2 Configuration */
mbed_official 87:085cde657901 308 /* Get the SAIBlock_x CR2 value */
mbed_official 87:085cde657901 309 tmpreg = hsai->Instance->CR2;
mbed_official 87:085cde657901 310 /* Clear FTH bits */
mbed_official 87:085cde657901 311 tmpreg &= ~(SAI_xCR2_FTH);
mbed_official 87:085cde657901 312 /* Configure the FIFO Level */
mbed_official 87:085cde657901 313 /* Set FTH bits according to SAI_FIFOThreshold value */
mbed_official 87:085cde657901 314 tmpreg |= (uint32_t)(hsai->Init.FIFOThreshold);
mbed_official 87:085cde657901 315 /* Write to SAI_Block_x CR2 */
mbed_official 87:085cde657901 316 hsai->Instance->CR2 = tmpreg;
mbed_official 87:085cde657901 317
mbed_official 87:085cde657901 318 /* SAI Block_x Frame Configuration -----------------------------------------*/
mbed_official 87:085cde657901 319 /* Get the SAI Block_x FRCR value */
mbed_official 87:085cde657901 320 tmpreg = hsai->Instance->FRCR;
mbed_official 87:085cde657901 321 /* Clear FRL, FSALL, FSDEF, FSPOL, FSOFF bits */
mbed_official 87:085cde657901 322 tmpreg &= FRCR_CLEAR_MASK;
mbed_official 87:085cde657901 323 /* Configure SAI_Block_x Frame: Frame Length, Active Frame Length, Frame Synchronization
mbed_official 87:085cde657901 324 Definition, Frame Synchronization Polarity and Frame Synchronization Polarity */
mbed_official 87:085cde657901 325 /* Set FRL bits according to SAI_FrameLength value */
mbed_official 87:085cde657901 326 /* Set FSALL bits according to SAI_ActiveFrameLength value */
mbed_official 87:085cde657901 327 /* Set FSDEF bit according to SAI_FSDefinition value */
mbed_official 87:085cde657901 328 /* Set FSPOL bit according to SAI_FSPolarity value */
mbed_official 87:085cde657901 329 /* Set FSOFF bit according to SAI_FSOffset value */
mbed_official 87:085cde657901 330 tmpreg |= (uint32_t)((uint32_t)(hsai->FrameInit.FrameLength - 1) |
mbed_official 87:085cde657901 331 hsai->FrameInit.FSOffset |
mbed_official 87:085cde657901 332 hsai->FrameInit.FSDefinition |
mbed_official 87:085cde657901 333 hsai->FrameInit.FSPolarity |
mbed_official 87:085cde657901 334 (uint32_t)((hsai->FrameInit.ActiveFrameLength - 1) << 8));
mbed_official 87:085cde657901 335
mbed_official 87:085cde657901 336 /* Write to SAI_Block_x FRCR */
mbed_official 87:085cde657901 337 hsai->Instance->FRCR = tmpreg;
mbed_official 87:085cde657901 338
mbed_official 87:085cde657901 339 /* SAI Block_x SLOT Configuration ------------------------------------------*/
mbed_official 87:085cde657901 340 /* Get the SAI Block_x SLOTR value */
mbed_official 87:085cde657901 341 tmpreg = hsai->Instance->SLOTR;
mbed_official 87:085cde657901 342 /* Clear FBOFF, SLOTSZ, NBSLOT, SLOTEN bits */
mbed_official 87:085cde657901 343 tmpreg &= SLOTR_CLEAR_MASK;
mbed_official 87:085cde657901 344 /* Configure SAI_Block_x Slot: First bit offset, Slot size, Number of Slot in
mbed_official 87:085cde657901 345 audio frame and slots activated in audio frame */
mbed_official 87:085cde657901 346 /* Set FBOFF bits according to SAI_FirstBitOffset value */
mbed_official 87:085cde657901 347 /* Set SLOTSZ bits according to SAI_SlotSize value */
mbed_official 87:085cde657901 348 /* Set NBSLOT bits according to SAI_SlotNumber value */
mbed_official 87:085cde657901 349 /* Set SLOTEN bits according to SAI_SlotActive value */
mbed_official 87:085cde657901 350 tmpreg |= (uint32_t)(hsai->SlotInit.FirstBitOffset |
mbed_official 87:085cde657901 351 hsai->SlotInit.SlotSize |
mbed_official 87:085cde657901 352 hsai->SlotInit.SlotActive |
mbed_official 87:085cde657901 353 (uint32_t)((hsai->SlotInit.SlotNumber - 1) << 8));
mbed_official 87:085cde657901 354
mbed_official 87:085cde657901 355 /* Write to SAI_Block_x SLOTR */
mbed_official 87:085cde657901 356 hsai->Instance->SLOTR = tmpreg;
mbed_official 87:085cde657901 357
mbed_official 87:085cde657901 358 /* SAI Block_x Clock Configuration -----------------------------------------*/
mbed_official 87:085cde657901 359 /* Check the Clock parameters */
mbed_official 87:085cde657901 360 assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource));
mbed_official 87:085cde657901 361
mbed_official 87:085cde657901 362 /* SAI Block clock source selection */
mbed_official 87:085cde657901 363 if(hsai->Instance == SAI1_Block_A)
mbed_official 87:085cde657901 364 {
mbed_official 87:085cde657901 365 __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource);
mbed_official 87:085cde657901 366 }
mbed_official 87:085cde657901 367 else
mbed_official 87:085cde657901 368 {
mbed_official 87:085cde657901 369 __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2));
mbed_official 87:085cde657901 370 }
mbed_official 87:085cde657901 371
mbed_official 87:085cde657901 372 /* VCO Input Clock value calculation */
mbed_official 87:085cde657901 373 if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI)
mbed_official 87:085cde657901 374 {
mbed_official 87:085cde657901 375 /* In Case the PLL Source is HSI (Internal Clock) */
mbed_official 87:085cde657901 376 vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM));
mbed_official 87:085cde657901 377 }
mbed_official 87:085cde657901 378 else
mbed_official 87:085cde657901 379 {
mbed_official 87:085cde657901 380 /* In Case the PLL Source is HSE (External Clock) */
mbed_official 87:085cde657901 381 vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)));
mbed_official 87:085cde657901 382 }
mbed_official 87:085cde657901 383
mbed_official 87:085cde657901 384 /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */
mbed_official 87:085cde657901 385 if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI)
mbed_official 87:085cde657901 386 {
mbed_official 87:085cde657901 387 /* Configure the PLLI2S division factor */
mbed_official 87:085cde657901 388 /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */
mbed_official 87:085cde657901 389 /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */
mbed_official 87:085cde657901 390 /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */
mbed_official 87:085cde657901 391 tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24;
mbed_official 87:085cde657901 392 saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6))/(tmpreg);
mbed_official 87:085cde657901 393
mbed_official 87:085cde657901 394 /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */
mbed_official 87:085cde657901 395 tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8) + 1);
mbed_official 87:085cde657901 396 saiclocksource = saiclocksource/(tmpreg);
mbed_official 87:085cde657901 397
mbed_official 87:085cde657901 398 }
mbed_official 87:085cde657901 399 else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S)
mbed_official 87:085cde657901 400 {
mbed_official 87:085cde657901 401 /* Configure the PLLI2S division factor */
mbed_official 87:085cde657901 402 /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */
mbed_official 87:085cde657901 403 /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */
mbed_official 87:085cde657901 404 /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */
mbed_official 87:085cde657901 405 tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24;
mbed_official 87:085cde657901 406 saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6))/(tmpreg);
mbed_official 87:085cde657901 407
mbed_official 87:085cde657901 408 /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */
mbed_official 87:085cde657901 409 tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1);
mbed_official 87:085cde657901 410 saiclocksource = saiclocksource/(tmpreg);
mbed_official 87:085cde657901 411 }
mbed_official 87:085cde657901 412 else /* sConfig->ClockSource == SAI_CLKSource_Ext */
mbed_official 87:085cde657901 413 {
mbed_official 87:085cde657901 414 /* Enable the External Clock selection */
mbed_official 87:085cde657901 415 __HAL_RCC_I2SCLK(RCC_I2SCLKSOURCE_EXT);
mbed_official 87:085cde657901 416
mbed_official 87:085cde657901 417 saiclocksource = EXTERNAL_CLOCK_VALUE;
mbed_official 87:085cde657901 418 }
mbed_official 87:085cde657901 419
mbed_official 87:085cde657901 420 /* Configure Master Clock using the following formula :
mbed_official 87:085cde657901 421 MCLK_x = SAI_CK_x / (MCKDIV[3:0] * 2) with MCLK_x = 256 * FS
mbed_official 87:085cde657901 422 FS = SAI_CK_x / (MCKDIV[3:0] * 2) * 256
mbed_official 87:085cde657901 423 MCKDIV[3:0] = SAI_CK_x / FS * 512 */
mbed_official 87:085cde657901 424 if(hsai->Init.NoDivider == SAI_MASTERDIVIDER_ENABLED)
mbed_official 87:085cde657901 425 {
mbed_official 87:085cde657901 426 /* (saiclocksource x 10) to keep Significant digits */
mbed_official 87:085cde657901 427 tmpclock = (((saiclocksource * 10) / ((hsai->Init.AudioFrequency) * 512)));
mbed_official 87:085cde657901 428
mbed_official 87:085cde657901 429 /* Get the result of modulo division */
mbed_official 87:085cde657901 430 tmp2clock = (tmpclock % 10);
mbed_official 87:085cde657901 431
mbed_official 87:085cde657901 432 /* Round result to the nearest integer*/
mbed_official 87:085cde657901 433 if (tmp2clock > 8)
mbed_official 87:085cde657901 434 {
mbed_official 87:085cde657901 435 tmpclock = ((tmpclock / 10) + 1);
mbed_official 87:085cde657901 436 }
mbed_official 87:085cde657901 437 else
mbed_official 87:085cde657901 438 {
mbed_official 87:085cde657901 439 tmpclock = (tmpclock / 10);
mbed_official 87:085cde657901 440 }
mbed_official 87:085cde657901 441 /*Set MCKDIV value in CR1 register*/
mbed_official 87:085cde657901 442 hsai->Instance->CR1 |= (tmpclock << 20);
mbed_official 87:085cde657901 443
mbed_official 106:ced8cbb51063 444 }
mbed_official 87:085cde657901 445
mbed_official 87:085cde657901 446 /* Initialise the error code */
mbed_official 87:085cde657901 447 hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official 106:ced8cbb51063 448
mbed_official 87:085cde657901 449 /* Initialize the SAI state */
mbed_official 87:085cde657901 450 hsai->State= HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 451
mbed_official 87:085cde657901 452 return HAL_OK;
mbed_official 87:085cde657901 453 }
mbed_official 87:085cde657901 454
mbed_official 87:085cde657901 455 /**
mbed_official 87:085cde657901 456 * @brief DeInitializes the SAI peripheral.
mbed_official 226:b062af740e40 457 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 458 * the configuration information for SAI module.
mbed_official 87:085cde657901 459 * @retval HAL status
mbed_official 87:085cde657901 460 */
mbed_official 87:085cde657901 461 HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 462 {
mbed_official 87:085cde657901 463 /* Check the SAI handle allocation */
mbed_official 87:085cde657901 464 if(hsai == NULL)
mbed_official 87:085cde657901 465 {
mbed_official 87:085cde657901 466 return HAL_ERROR;
mbed_official 87:085cde657901 467 }
mbed_official 106:ced8cbb51063 468
mbed_official 87:085cde657901 469 hsai->State = HAL_SAI_STATE_BUSY;
mbed_official 106:ced8cbb51063 470
mbed_official 87:085cde657901 471 /* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
mbed_official 87:085cde657901 472 HAL_SAI_MspDeInit(hsai);
mbed_official 87:085cde657901 473
mbed_official 87:085cde657901 474 /* Initialize the error code */
mbed_official 87:085cde657901 475 hsai->ErrorCode = HAL_SAI_ERROR_NONE;
mbed_official 87:085cde657901 476
mbed_official 87:085cde657901 477 /* Initialize the SAI state */
mbed_official 87:085cde657901 478 hsai->State = HAL_SAI_STATE_RESET;
mbed_official 106:ced8cbb51063 479
mbed_official 106:ced8cbb51063 480 /* Release Lock */
mbed_official 106:ced8cbb51063 481 __HAL_UNLOCK(hsai);
mbed_official 106:ced8cbb51063 482
mbed_official 87:085cde657901 483 return HAL_OK;
mbed_official 87:085cde657901 484 }
mbed_official 87:085cde657901 485
mbed_official 87:085cde657901 486 /**
mbed_official 87:085cde657901 487 * @brief SAI MSP Init.
mbed_official 226:b062af740e40 488 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 489 * the configuration information for SAI module.
mbed_official 87:085cde657901 490 * @retval None
mbed_official 87:085cde657901 491 */
mbed_official 87:085cde657901 492 __weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 493 {
mbed_official 87:085cde657901 494 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 495 the HAL_SAI_MspInit could be implemented in the user file
mbed_official 87:085cde657901 496 */
mbed_official 87:085cde657901 497 }
mbed_official 87:085cde657901 498
mbed_official 87:085cde657901 499 /**
mbed_official 87:085cde657901 500 * @brief SAI MSP DeInit.
mbed_official 226:b062af740e40 501 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 502 * the configuration information for SAI module.
mbed_official 87:085cde657901 503 * @retval None
mbed_official 87:085cde657901 504 */
mbed_official 87:085cde657901 505 __weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai)
mbed_official 87:085cde657901 506 {
mbed_official 87:085cde657901 507 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 508 the HAL_SAI_MspDeInit could be implemented in the user file
mbed_official 87:085cde657901 509 */
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 /** @defgroup SAI_Group2 IO operation functions
mbed_official 87:085cde657901 517 * @brief Data transfers functions
mbed_official 87:085cde657901 518 *
mbed_official 87:085cde657901 519 @verbatim
mbed_official 87:085cde657901 520 ===============================================================================
mbed_official 87:085cde657901 521 ##### IO operation functions #####
mbed_official 87:085cde657901 522 ===============================================================================
mbed_official 87:085cde657901 523 [..]
mbed_official 87:085cde657901 524 This subsection provides a set of functions allowing to manage the SAI data
mbed_official 87:085cde657901 525 transfers.
mbed_official 87:085cde657901 526
mbed_official 226:b062af740e40 527 (+) There are two modes of transfer:
mbed_official 87:085cde657901 528 (++) Blocking mode : The communication is performed in the polling mode.
mbed_official 87:085cde657901 529 The status of all data processing is returned by the same function
mbed_official 87:085cde657901 530 after finishing transfer.
mbed_official 87:085cde657901 531 (++) No-Blocking mode : The communication is performed using Interrupts
mbed_official 87:085cde657901 532 or DMA. These functions return the status of the transfer startup.
mbed_official 87:085cde657901 533 The end of the data processing will be indicated through the
mbed_official 87:085cde657901 534 dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when
mbed_official 87:085cde657901 535 using DMA mode.
mbed_official 87:085cde657901 536
mbed_official 87:085cde657901 537 (+) Blocking mode functions are :
mbed_official 87:085cde657901 538 (++) HAL_SAI_Transmit()
mbed_official 87:085cde657901 539 (++) HAL_SAI_Receive()
mbed_official 87:085cde657901 540 (++) HAL_SAI_TransmitReceive()
mbed_official 87:085cde657901 541
mbed_official 226:b062af740e40 542 (+) Non Blocking mode functions with Interrupt are :
mbed_official 87:085cde657901 543 (++) HAL_SAI_Transmit_IT()
mbed_official 87:085cde657901 544 (++) HAL_SAI_Receive_IT()
mbed_official 87:085cde657901 545 (++) HAL_SAI_TransmitReceive_IT()
mbed_official 87:085cde657901 546
mbed_official 226:b062af740e40 547 (+) Non Blocking mode functions with DMA are :
mbed_official 87:085cde657901 548 (++) HAL_SAI_Transmit_DMA()
mbed_official 87:085cde657901 549 (++) HAL_SAI_Receive_DMA()
mbed_official 87:085cde657901 550 (++) HAL_SAI_TransmitReceive_DMA()
mbed_official 87:085cde657901 551
mbed_official 226:b062af740e40 552 (+) A set of Transfer Complete Callbacks are provided in non Blocking mode:
mbed_official 87:085cde657901 553 (++) HAL_SAI_TxCpltCallback()
mbed_official 87:085cde657901 554 (++) HAL_SAI_RxCpltCallback()
mbed_official 87:085cde657901 555 (++) HAL_SAI_ErrorCallback()
mbed_official 87:085cde657901 556
mbed_official 87:085cde657901 557 @endverbatim
mbed_official 87:085cde657901 558 * @{
mbed_official 87:085cde657901 559 */
mbed_official 87:085cde657901 560
mbed_official 87:085cde657901 561 /**
mbed_official 87:085cde657901 562 * @brief Transmits an amount of data in blocking mode.
mbed_official 226:b062af740e40 563 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 564 * the configuration information for SAI module.
mbed_official 87:085cde657901 565 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 566 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 567 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 568 * @retval HAL status
mbed_official 87:085cde657901 569 */
mbed_official 87:085cde657901 570 HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef *hsai, uint16_t* pData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 571 {
mbed_official 87:085cde657901 572 uint32_t timeout = 0x00;
mbed_official 87:085cde657901 573
mbed_official 87:085cde657901 574 if((pData == NULL ) || (Size == 0))
mbed_official 87:085cde657901 575 {
mbed_official 87:085cde657901 576 return HAL_ERROR;
mbed_official 87:085cde657901 577 }
mbed_official 87:085cde657901 578
mbed_official 87:085cde657901 579 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 580 {
mbed_official 87:085cde657901 581 /* Process Locked */
mbed_official 87:085cde657901 582 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 583
mbed_official 87:085cde657901 584 hsai->State = HAL_SAI_STATE_BUSY_TX;
mbed_official 87:085cde657901 585
mbed_official 87:085cde657901 586 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 587 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 588 {
mbed_official 87:085cde657901 589 /* Enable SAI peripheral */
mbed_official 87:085cde657901 590 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 591 }
mbed_official 87:085cde657901 592
mbed_official 87:085cde657901 593 while(Size > 0)
mbed_official 87:085cde657901 594 {
mbed_official 87:085cde657901 595 /* Wait the FIFO to be empty */
mbed_official 87:085cde657901 596 /* Get timeout */
mbed_official 87:085cde657901 597 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 598 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official 87:085cde657901 599 {
mbed_official 87:085cde657901 600 /* Check for the Timeout */
mbed_official 87:085cde657901 601 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 602 {
mbed_official 87:085cde657901 603 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 604 {
mbed_official 87:085cde657901 605
mbed_official 87:085cde657901 606 /* Update error code */
mbed_official 87:085cde657901 607 hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
mbed_official 87:085cde657901 608
mbed_official 87:085cde657901 609 /* Process Unlocked */
mbed_official 87:085cde657901 610 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 611
mbed_official 87:085cde657901 612 /* Change the SAI state */
mbed_official 87:085cde657901 613 hsai->State = HAL_SAI_STATE_TIMEOUT;
mbed_official 87:085cde657901 614
mbed_official 87:085cde657901 615 return HAL_TIMEOUT;
mbed_official 87:085cde657901 616 }
mbed_official 87:085cde657901 617 }
mbed_official 87:085cde657901 618 }
mbed_official 87:085cde657901 619 hsai->Instance->DR = (*pData++);
mbed_official 87:085cde657901 620 Size--;
mbed_official 87:085cde657901 621 }
mbed_official 87:085cde657901 622
mbed_official 87:085cde657901 623 hsai->State = HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 624
mbed_official 87:085cde657901 625 /* Process Unlocked */
mbed_official 87:085cde657901 626 __HAL_UNLOCK(hsai);
mbed_official 87:085cde657901 627
mbed_official 87:085cde657901 628 return HAL_OK;
mbed_official 87:085cde657901 629 }
mbed_official 87:085cde657901 630 else
mbed_official 87:085cde657901 631 {
mbed_official 87:085cde657901 632 return HAL_BUSY;
mbed_official 87:085cde657901 633 }
mbed_official 87:085cde657901 634 }
mbed_official 87:085cde657901 635
mbed_official 87:085cde657901 636 /**
mbed_official 87:085cde657901 637 * @brief Receives an amount of data in blocking mode.
mbed_official 226:b062af740e40 638 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 639 * the configuration information for SAI module.
mbed_official 87:085cde657901 640 * @param pData: Pointer to data buffer
mbed_official 87:085cde657901 641 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 642 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 643 * @retval HAL status
mbed_official 87:085cde657901 644 */
mbed_official 87:085cde657901 645 HAL_StatusTypeDef HAL_SAI_Receive(SAI_HandleTypeDef *hsai, uint16_t *pData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 646 {
mbed_official 87:085cde657901 647 uint32_t timeout = 0x00;
mbed_official 87:085cde657901 648
mbed_official 87:085cde657901 649 if((pData == NULL ) || (Size == 0))
mbed_official 87:085cde657901 650 {
mbed_official 87:085cde657901 651 return HAL_ERROR;
mbed_official 87:085cde657901 652 }
mbed_official 87:085cde657901 653
mbed_official 87:085cde657901 654 if(hsai->State == HAL_SAI_STATE_READY)
mbed_official 87:085cde657901 655 {
mbed_official 87:085cde657901 656 /* Process Locked */
mbed_official 87:085cde657901 657 __HAL_LOCK(hsai);
mbed_official 87:085cde657901 658
mbed_official 87:085cde657901 659 hsai->State = HAL_SAI_STATE_BUSY_RX;
mbed_official 87:085cde657901 660
mbed_official 87:085cde657901 661 /* Check if the SAI is already enabled */
mbed_official 87:085cde657901 662 if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
mbed_official 87:085cde657901 663 {
mbed_official 87:085cde657901 664 /* Enable SAI peripheral */
mbed_official 87:085cde657901 665 __HAL_SAI_ENABLE(hsai);
mbed_official 87:085cde657901 666 }
mbed_official 87:085cde657901 667
mbed_official 87:085cde657901 668 /* Receive data */
mbed_official 87:085cde657901 669 while(Size > 0)
mbed_official 87:085cde657901 670 {
mbed_official 87:085cde657901 671 /* Wait until RXNE flag is set */
mbed_official 87:085cde657901 672 /* Get timeout */
mbed_official 87:085cde657901 673 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 674
mbed_official 87:085cde657901 675 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FREQ) == RESET)
mbed_official 87:085cde657901 676 {
mbed_official 87:085cde657901 677 /* Check for the Timeout */
mbed_official 87:085cde657901 678 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 679 {
mbed_official 87:085cde657901 680 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 681 {
mbed_official 87:085cde657901 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 87:085cde657901 726 if((pData == 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 87:085cde657901 804 if((pData == 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 106:ced8cbb51063 928 if(hsai->hdmatx != 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 106:ced8cbb51063 933 if(hsai->hdmarx != 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 87:085cde657901 960 if((pData == 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 87:085cde657901 1022 if((pData == 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 87:085cde657901 1089 HAL_SAI_Receive_IT(hsai, 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 87:085cde657901 1115 HAL_SAI_Transmit_IT(hsai, 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 106:ced8cbb51063 1253 uint32_t timeout = 0x00;
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 106:ced8cbb51063 1265 /* Set timeout: 10 is the max delay to send the remaining data in the SAI FIFO */
mbed_official 106:ced8cbb51063 1266 timeout = HAL_GetTick() + 10;
mbed_official 106:ced8cbb51063 1267
mbed_official 106:ced8cbb51063 1268 /* Wait until FIFO is empty */
mbed_official 106:ced8cbb51063 1269 while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FLVL) != RESET)
mbed_official 106:ced8cbb51063 1270 {
mbed_official 106:ced8cbb51063 1271 /* Check for the Timeout */
mbed_official 106:ced8cbb51063 1272 if(HAL_GetTick() >= timeout)
mbed_official 106:ced8cbb51063 1273 {
mbed_official 106:ced8cbb51063 1274 /* Update error code */
mbed_official 106:ced8cbb51063 1275 hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
mbed_official 106:ced8cbb51063 1276
mbed_official 106:ced8cbb51063 1277 /* Change the SAI state */
mbed_official 106:ced8cbb51063 1278 HAL_SAI_ErrorCallback(hsai);
mbed_official 106:ced8cbb51063 1279 }
mbed_official 106:ced8cbb51063 1280 }
mbed_official 106:ced8cbb51063 1281
mbed_official 106:ced8cbb51063 1282 hsai->State= HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 1283 }
mbed_official 87:085cde657901 1284 HAL_SAI_TxCpltCallback(hsai);
mbed_official 87:085cde657901 1285 }
mbed_official 87:085cde657901 1286
mbed_official 87:085cde657901 1287 /**
mbed_official 87:085cde657901 1288 * @brief DMA SAI transmit process half complete callback
mbed_official 226:b062af740e40 1289 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1290 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1291 * @retval None
mbed_official 87:085cde657901 1292 */
mbed_official 87:085cde657901 1293 static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1294 {
mbed_official 87:085cde657901 1295 SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1296
mbed_official 87:085cde657901 1297 HAL_SAI_TxHalfCpltCallback(hsai);
mbed_official 87:085cde657901 1298 }
mbed_official 87:085cde657901 1299
mbed_official 87:085cde657901 1300 /**
mbed_official 87:085cde657901 1301 * @brief DMA SAI receive process complete callback.
mbed_official 226:b062af740e40 1302 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1303 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1304 * @retval None
mbed_official 87:085cde657901 1305 */
mbed_official 87:085cde657901 1306 static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1307 {
mbed_official 87:085cde657901 1308 SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 106:ced8cbb51063 1309 if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
mbed_official 106:ced8cbb51063 1310 {
mbed_official 106:ced8cbb51063 1311 /* Disable Rx DMA Request */
mbed_official 106:ced8cbb51063 1312 hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
mbed_official 106:ced8cbb51063 1313 hsai->RxXferCount = 0;
mbed_official 106:ced8cbb51063 1314
mbed_official 106:ced8cbb51063 1315 hsai->State = HAL_SAI_STATE_READY;
mbed_official 106:ced8cbb51063 1316 }
mbed_official 87:085cde657901 1317 HAL_SAI_RxCpltCallback(hsai);
mbed_official 87:085cde657901 1318 }
mbed_official 87:085cde657901 1319
mbed_official 87:085cde657901 1320 /**
mbed_official 87:085cde657901 1321 * @brief DMA SAI receive process half complete callback
mbed_official 226:b062af740e40 1322 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1323 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1324 * @retval None
mbed_official 87:085cde657901 1325 */
mbed_official 87:085cde657901 1326 static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1327 {
mbed_official 87:085cde657901 1328 SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1329
mbed_official 87:085cde657901 1330 HAL_SAI_RxHalfCpltCallback(hsai);
mbed_official 87:085cde657901 1331 }
mbed_official 87:085cde657901 1332 /**
mbed_official 87:085cde657901 1333 * @brief DMA SAI communication error callback.
mbed_official 226:b062af740e40 1334 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1335 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1336 * @retval None
mbed_official 87:085cde657901 1337 */
mbed_official 87:085cde657901 1338 static void SAI_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1339 {
mbed_official 87:085cde657901 1340 SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1341 /* Set the SAI state ready to be able to start again the process */
mbed_official 87:085cde657901 1342 hsai->State= HAL_SAI_STATE_READY;
mbed_official 87:085cde657901 1343 HAL_SAI_ErrorCallback(hsai);
mbed_official 87:085cde657901 1344
mbed_official 87:085cde657901 1345 hsai->TxXferCount = 0;
mbed_official 87:085cde657901 1346 hsai->RxXferCount = 0;
mbed_official 87:085cde657901 1347 }
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 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
mbed_official 87:085cde657901 1354 #endif /* HAL_SAI_MODULE_ENABLED */
mbed_official 87:085cde657901 1355 /**
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 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/