[303] | 1 | /**
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| 2 | ******************************************************************************
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| 3 | * @file stm32f4xx_hal_sai.c
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| 4 | * @author MCD Application Team
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| 5 | * @version V1.4.1
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| 6 | * @date 09-October-2015
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| 7 | * @brief SAI HAL module driver.
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| 8 | * This file provides firmware functions to manage the following
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| 9 | * functionalities of the Serial Audio Interface (SAI) peripheral:
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| 10 | * + Initialization/de-initialization functions
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| 11 | * + I/O operation functions
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| 12 | * + Peripheral Control functions
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| 13 | * + Peripheral State functions
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| 14 | *
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| 15 | @verbatim
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| 16 | ==============================================================================
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| 17 | ##### How to use this driver #####
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| 18 | ==============================================================================
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| 19 |
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| 20 | [..]
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| 21 | The SAI HAL driver can be used as follows:
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| 22 |
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| 23 | (#) Declare a SAI_HandleTypeDef handle structure.
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| 24 | (#) Initialize the SAI low level resources by implementing the HAL_SAI_MspInit() API:
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| 25 | (##) Enable the SAI interface clock.
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| 26 | (##) SAI pins configuration:
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| 27 | (+++) Enable the clock for the SAI GPIOs.
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| 28 | (+++) Configure these SAI pins as alternate function pull-up.
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| 29 | (##) NVIC configuration if you need to use interrupt process (HAL_SAI_Transmit_IT()
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| 30 | and HAL_SAI_Receive_IT() APIs):
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| 31 | (+++) Configure the SAI interrupt priority.
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| 32 | (+++) Enable the NVIC SAI IRQ handle.
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| 33 |
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| 34 | (##) DMA Configuration if you need to use DMA process (HAL_SAI_Transmit_DMA()
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| 35 | and HAL_SAI_Receive_DMA() APIs):
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| 36 | (+++) Declare a DMA handle structure for the Tx/Rx stream.
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| 37 | (+++) Enable the DMAx interface clock.
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| 38 | (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
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| 39 | (+++) Configure the DMA Tx/Rx Stream.
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| 40 | (+++) Associate the initialized DMA handle to the SAI DMA Tx/Rx handle.
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| 41 | (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the
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| 42 | DMA Tx/Rx Stream.
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| 43 |
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| 44 | (#) Program the SAI Mode, Standard, Data Format, MCLK Output, Audio frequency and Polarity
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| 45 | using HAL_SAI_Init() function.
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| 46 |
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| 47 | -@- The specific SAI interrupts (FIFO request and Overrun underrun interrupt)
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| 48 | will be managed using the macros __SAI_ENABLE_IT() and __SAI_DISABLE_IT()
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| 49 | inside the transmit and receive process.
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| 50 |
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| 51 | [..]
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| 52 | (@) SAI Clock Source configuration is managed differently depending on the selected
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| 53 | STM32F4 devices :
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| 54 | (+@) For STM32F446xx devices, the configuration is managed through RCCEx_PeriphCLKConfig()
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| 55 | function in the HAL RCC drivers
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| 56 | (+@) For STM32F439xx/STM32F437xx/STM32F429xx/STM32F427xx devices, the configuration
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| 57 | is managed within HAL SAI drivers through HAL_SAI_Init() function using
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| 58 | ClockSource field of SAI_InitTypeDef structure.
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| 59 | [..]
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| 60 | (@) Make sure that either:
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| 61 | (+@) I2S PLL is configured or
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| 62 | (+@) SAI PLL is configured or
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| 63 | (+@) External clock source is configured after setting correctly
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| 64 | the define constant EXTERNAL_CLOCK_VALUE in the stm32f4xx_hal_conf.h file.
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| 65 |
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| 66 | [..]
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| 67 | (@) In master Tx mode: enabling the audio block immediately generates the bit clock
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| 68 | for the external slaves even if there is no data in the FIFO, However FS signal
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| 69 | generation is conditioned by the presence of data in the FIFO.
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| 70 |
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| 71 | [..]
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| 72 | (@) In master Rx mode: enabling the audio block immediately generates the bit clock
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| 73 | and FS signal for the external slaves.
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| 74 |
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| 75 | [..]
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| 76 | (@) It is mandatory to respect the following conditions in order to avoid bad SAI behavior:
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| 77 | (+@) First bit Offset <= (SLOT size - Data size)
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| 78 | (+@) Data size <= SLOT size
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| 79 | (+@) Number of SLOT x SLOT size = Frame length
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| 80 | (+@) The number of slots should be even when SAI_FS_CHANNEL_IDENTIFICATION is selected.
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| 81 |
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| 82 | [..]
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| 83 | Three operation modes are available within this driver :
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| 84 |
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| 85 | *** Polling mode IO operation ***
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| 86 | =================================
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| 87 | [..]
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| 88 | (+) Send an amount of data in blocking mode using HAL_SAI_Transmit()
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| 89 | (+) Receive an amount of data in blocking mode using HAL_SAI_Receive()
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| 90 |
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| 91 | *** Interrupt mode IO operation ***
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| 92 | ===================================
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| 93 | [..]
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| 94 | (+) Send an amount of data in non blocking mode using HAL_SAI_Transmit_IT()
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| 95 | (+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
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| 96 | add his own code by customization of function pointer HAL_SAI_TxCpltCallback
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| 97 | (+) Receive an amount of data in non blocking mode using HAL_SAI_Receive_IT()
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| 98 | (+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
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| 99 | add his own code by customization of function pointer HAL_SAI_RxCpltCallback
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| 100 | (+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
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| 101 | add his own code by customization of function pointer HAL_SAI_ErrorCallback
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| 102 |
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| 103 | *** DMA mode IO operation ***
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| 104 | ==============================
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| 105 | [..]
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| 106 | (+) Send an amount of data in non blocking mode (DMA) using HAL_SAI_Transmit_DMA()
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| 107 | (+) At transmission end of transfer HAL_SAI_TxCpltCallback is executed and user can
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| 108 | add his own code by customization of function pointer HAL_SAI_TxCpltCallback
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| 109 | (+) Receive an amount of data in non blocking mode (DMA) using HAL_SAI_Receive_DMA()
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| 110 | (+) At reception end of transfer HAL_SAI_RxCpltCallback is executed and user can
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| 111 | add his own code by customization of function pointer HAL_SAI_RxCpltCallback
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| 112 | (+) In case of transfer Error, HAL_SAI_ErrorCallback() function is executed and user can
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| 113 | add his own code by customization of function pointer HAL_SAI_ErrorCallback
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| 114 | (+) Pause the DMA Transfer using HAL_SAI_DMAPause()
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| 115 | (+) Resume the DMA Transfer using HAL_SAI_DMAResume()
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| 116 | (+) Stop the DMA Transfer using HAL_SAI_DMAStop()
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| 117 |
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| 118 | *** SAI HAL driver macros list ***
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| 119 | =============================================
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| 120 | [..]
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| 121 | Below the list of most used macros in USART HAL driver :
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| 122 |
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| 123 | (+) __HAL_SAI_ENABLE: Enable the SAI peripheral
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| 124 | (+) __HAL_SAI_DISABLE: Disable the SAI peripheral
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| 125 | (+) __HAL_SAI_ENABLE_IT : Enable the specified SAI interrupts
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| 126 | (+) __HAL_SAI_DISABLE_IT : Disable the specified SAI interrupts
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| 127 | (+) __HAL_SAI_GET_IT_SOURCE: Check if the specified SAI interrupt source is
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| 128 | enabled or disabled
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| 129 | (+) __HAL_SAI_GET_FLAG: Check whether the specified SAI flag is set or not
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| 130 |
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| 131 | @endverbatim
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| 132 | ******************************************************************************
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| 133 | * @attention
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| 134 | *
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| 135 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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| 136 | *
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| 137 | * Redistribution and use in source and binary forms, with or without modification,
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| 138 | * are permitted provided that the following conditions are met:
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| 139 | * 1. Redistributions of source code must retain the above copyright notice,
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| 140 | * this list of conditions and the following disclaimer.
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| 141 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 142 | * this list of conditions and the following disclaimer in the documentation
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| 143 | * and/or other materials provided with the distribution.
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| 144 | * 3. Neither the name of STMicroelectronics nor the names of its contributors
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| 145 | * may be used to endorse or promote products derived from this software
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| 146 | * without specific prior written permission.
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| 147 | *
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| 148 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| 149 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 150 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 151 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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| 152 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 153 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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| 154 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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| 155 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 156 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 157 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 158 | *
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| 159 | ******************************************************************************
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| 160 | */
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| 161 |
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| 162 | /* Includes ------------------------------------------------------------------*/
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| 163 | #include "stm32f4xx_hal.h"
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| 164 |
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| 165 | /** @addtogroup STM32F4xx_HAL_Driver
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| 166 | * @{
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| 167 | */
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| 168 |
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| 169 | /** @defgroup SAI SAI
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| 170 | * @brief SAI HAL module driver
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| 171 | * @{
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| 172 | */
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| 173 |
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| 174 | #ifdef HAL_SAI_MODULE_ENABLED
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| 175 |
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| 176 | #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
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| 177 | defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
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| 178 |
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| 179 | /* Private typedef -----------------------------------------------------------*/
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| 180 | /** @defgroup SAI_Private_Typedefs SAI Private Typedefs
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| 181 | * @{
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| 182 | */
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| 183 | typedef enum {
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| 184 | SAI_MODE_DMA,
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| 185 | SAI_MODE_IT
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| 186 | }SAI_ModeTypedef;
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| 187 | /**
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| 188 | * @}
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| 189 | */
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| 190 | /* Private define ------------------------------------------------------------*/
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| 191 | /** @defgroup SAI_Private_Constants SAI Private Constants
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| 192 | * @{
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| 193 | */
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| 194 | #define SAI_FIFO_SIZE 8
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| 195 | #define SAI_DEFAULT_TIMEOUT 4
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| 196 | /**
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| 197 | * @}
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| 198 | */
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| 199 |
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| 200 | /* SAI registers Masks */
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| 201 | #define CR1_CLEAR_MASK ((uint32_t)0xFF04C010)
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| 202 | #define FRCR_CLEAR_MASK ((uint32_t)0xFFF88000)
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| 203 | #define SLOTR_CLEAR_MASK ((uint32_t)0x0000F020)
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| 204 |
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| 205 | #define SAI_TIMEOUT_VALUE 10
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| 206 | /* Private macro -------------------------------------------------------------*/
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| 207 | /* Private variables ---------------------------------------------------------*/
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| 208 | /* Private function prototypes -----------------------------------------------*/
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| 209 | static void SAI_FillFifo(SAI_HandleTypeDef *hsai);
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| 210 | static uint32_t SAI_InterruptFlag(SAI_HandleTypeDef *hsai, uint32_t mode);
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| 211 | static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot);
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| 212 | static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot);
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| 213 |
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| 214 | static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai);
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| 215 | static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai);
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| 216 | static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai);
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| 217 | static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai);
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| 218 | static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai);
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| 219 | static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai);
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| 220 | static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai);
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| 221 |
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| 222 | static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma);
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| 223 | static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
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| 224 | static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma);
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| 225 | static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
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| 226 | static void SAI_DMAError(DMA_HandleTypeDef *hdma);
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| 227 |
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| 228 | /* Exported functions ---------------------------------------------------------*/
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| 229 |
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| 230 | /** @defgroup SAI_Exported_Functions SAI Exported Functions
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| 231 | * @{
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| 232 | */
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| 233 |
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| 234 | /** @defgroup SAI_Exported_Functions_Group1 Initialization and de-initialization functions
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| 235 | * @brief Initialization and Configuration functions
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| 236 | *
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| 237 | @verbatim
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| 238 | ===============================================================================
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| 239 | ##### Initialization and de-initialization functions #####
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| 240 | ===============================================================================
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| 241 | [..] This subsection provides a set of functions allowing to initialize and
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| 242 | de-initialize the SAIx peripheral:
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| 243 |
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| 244 | (+) User must implement HAL_SAI_MspInit() function in which he configures
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| 245 | all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).
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| 246 |
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| 247 | (+) Call the function HAL_SAI_Init() to configure the selected device with
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| 248 | the selected configuration:
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| 249 | (++) Mode (Master/slave TX/RX)
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| 250 | (++) Protocol
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| 251 | (++) Data Size
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| 252 | (++) MCLK Output
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| 253 | (++) Audio frequency
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| 254 | (++) FIFO Threshold
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| 255 | (++) Frame Config
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| 256 | (++) Slot Config
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| 257 |
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| 258 | (+) Call the function HAL_SAI_DeInit() to restore the default configuration
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| 259 | of the selected SAI peripheral.
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| 260 |
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| 261 | @endverbatim
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| 262 | * @{
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| 263 | */
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| 264 |
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| 265 | /**
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| 266 | * @brief Initializes the structure FrameInit, SlotInit and the low part of
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| 267 | * Init according to the specified parameters and call the function
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| 268 | * HAL_SAI_Init to initialize the SAI block.
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| 269 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
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| 270 | * the configuration information for SAI module.
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| 271 | * @param protocol : one of the supported protocol @ref SAI_Protocol
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| 272 | * @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
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| 273 | * the configuration information for SAI module.
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| 274 | * @param nbslot : Number of slot.
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| 275 | * @retval HAL status
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| 276 | */
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| 277 | HAL_StatusTypeDef HAL_SAI_InitProtocol(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
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| 278 | {
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| 279 | HAL_StatusTypeDef status = HAL_OK;
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| 280 |
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| 281 | /* Check the parameters */
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| 282 | assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
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| 283 | assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
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| 284 |
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| 285 | switch(protocol)
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| 286 | {
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| 287 | case SAI_I2S_STANDARD :
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| 288 | case SAI_I2S_MSBJUSTIFIED :
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| 289 | case SAI_I2S_LSBJUSTIFIED :
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| 290 | status = SAI_InitI2S(hsai, protocol, datasize, nbslot);
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| 291 | break;
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| 292 | case SAI_PCM_LONG :
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| 293 | case SAI_PCM_SHORT :
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| 294 | status = SAI_InitPCM(hsai, protocol, datasize, nbslot);
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| 295 | break;
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| 296 | default :
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| 297 | status = HAL_ERROR;
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| 298 | break;
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| 299 | }
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| 300 |
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| 301 | if(status == HAL_OK)
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| 302 | {
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| 303 | status = HAL_SAI_Init(hsai);
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| 304 | }
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| 305 |
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| 306 | return status;
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| 307 | }
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| 308 |
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| 309 | /**
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| 310 | * @brief Initializes the SAI according to the specified parameters
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| 311 | * in the SAI_InitTypeDef and create the associated handle.
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| 312 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
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| 313 | * the configuration information for SAI module.
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| 314 | * @retval HAL status
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| 315 | */
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| 316 | HAL_StatusTypeDef HAL_SAI_Init(SAI_HandleTypeDef *hsai)
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| 317 | {
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| 318 | uint32_t tmpclock = 0;
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| 319 |
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| 320 | /* This variable used to store the SAI_CK_x (value in Hz) */
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| 321 | uint32_t freq = 0;
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| 322 |
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| 323 | /* Check the SAI handle allocation */
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| 324 | if(hsai == NULL)
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| 325 | {
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| 326 | return HAL_ERROR;
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| 327 | }
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| 328 |
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| 329 | /* Check the SAI Block parameters */
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| 330 | assert_param(IS_SAI_AUDIO_FREQUENCY(hsai->Init.AudioFrequency));
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| 331 | assert_param(IS_SAI_BLOCK_PROTOCOL(hsai->Init.Protocol));
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| 332 | assert_param(IS_SAI_BLOCK_MODE(hsai->Init.AudioMode));
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| 333 | assert_param(IS_SAI_BLOCK_SYNCEXT(hsai->Init.SynchroExt));
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| 334 | assert_param(IS_SAI_BLOCK_DATASIZE(hsai->Init.DataSize));
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| 335 | assert_param(IS_SAI_BLOCK_FIRST_BIT(hsai->Init.FirstBit));
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| 336 | assert_param(IS_SAI_BLOCK_CLOCK_STROBING(hsai->Init.ClockStrobing));
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| 337 | assert_param(IS_SAI_BLOCK_SYNCHRO(hsai->Init.Synchro));
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| 338 | assert_param(IS_SAI_BLOCK_OUTPUT_DRIVE(hsai->Init.OutputDrive));
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| 339 | assert_param(IS_SAI_BLOCK_NODIVIDER(hsai->Init.NoDivider));
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| 340 | assert_param(IS_SAI_BLOCK_FIFO_THRESHOLD(hsai->Init.FIFOThreshold));
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| 341 | assert_param(IS_SAI_MONO_STEREO_MODE(hsai->Init.MonoStereoMode));
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| 342 | assert_param(IS_SAI_BLOCK_COMPANDING_MODE(hsai->Init.CompandingMode));
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| 343 | assert_param(IS_SAI_BLOCK_TRISTATE_MANAGEMENT(hsai->Init.TriState));
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| 344 |
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| 345 | /* Check the SAI Block Frame parameters */
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| 346 | assert_param(IS_SAI_BLOCK_FRAME_LENGTH(hsai->FrameInit.FrameLength));
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| 347 | assert_param(IS_SAI_BLOCK_ACTIVE_FRAME(hsai->FrameInit.ActiveFrameLength));
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| 348 | assert_param(IS_SAI_BLOCK_FS_DEFINITION(hsai->FrameInit.FSDefinition));
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| 349 | assert_param(IS_SAI_BLOCK_FS_POLARITY(hsai->FrameInit.FSPolarity));
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| 350 | assert_param(IS_SAI_BLOCK_FS_OFFSET(hsai->FrameInit.FSOffset));
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| 351 |
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| 352 | /* Check the SAI Block Slot parameters */
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| 353 | assert_param(IS_SAI_BLOCK_FIRSTBIT_OFFSET(hsai->SlotInit.FirstBitOffset));
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| 354 | assert_param(IS_SAI_BLOCK_SLOT_SIZE(hsai->SlotInit.SlotSize));
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| 355 | assert_param(IS_SAI_BLOCK_SLOT_NUMBER(hsai->SlotInit.SlotNumber));
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| 356 | assert_param(IS_SAI_SLOT_ACTIVE(hsai->SlotInit.SlotActive));
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| 357 |
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| 358 | if(hsai->State == HAL_SAI_STATE_RESET)
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| 359 | {
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| 360 | /* Allocate lock resource and initialize it */
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| 361 | hsai->Lock = HAL_UNLOCKED;
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| 362 |
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| 363 | /* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
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| 364 | HAL_SAI_MspInit(hsai);
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| 365 | }
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| 366 |
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| 367 | hsai->State = HAL_SAI_STATE_BUSY;
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| 368 |
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| 369 | /* Disable the selected SAI peripheral */
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| 370 | SAI_Disable(hsai);
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| 371 |
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| 372 | /* SAI Block Synchro Configuration -----------------------------------------*/
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| 373 | SAI_BlockSynchroConfig(hsai);
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| 374 |
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| 375 | /* Configure Master Clock using the following formula :
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| 376 | MCLK_x = SAI_CK_x / (MCKDIV[3:0] * 2) with MCLK_x = 256 * FS
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| 377 | FS = SAI_CK_x / (MCKDIV[3:0] * 2) * 256
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| 378 | MCKDIV[3:0] = SAI_CK_x / FS * 512 */
|
---|
| 379 | if(hsai->Init.AudioFrequency != SAI_AUDIO_FREQUENCY_MCKDIV)
|
---|
| 380 | {
|
---|
| 381 | /* Get SAI clock source based on Source clock selection from RCC */
|
---|
| 382 | freq = SAI_GetInputClock(hsai);
|
---|
| 383 |
|
---|
| 384 | /* (saiclocksource x 10) to keep Significant digits */
|
---|
| 385 | tmpclock = (((freq * 10) / ((hsai->Init.AudioFrequency) * 512)));
|
---|
| 386 |
|
---|
| 387 | hsai->Init.Mckdiv = tmpclock / 10;
|
---|
| 388 |
|
---|
| 389 | /* Round result to the nearest integer */
|
---|
| 390 | if((tmpclock % 10) > 8)
|
---|
| 391 | {
|
---|
| 392 | hsai->Init.Mckdiv+= 1;
|
---|
| 393 | }
|
---|
| 394 | }
|
---|
| 395 |
|
---|
| 396 | /* SAI Block Configuration ------------------------------------------------------------*/
|
---|
| 397 | /* SAI CR1 Configuration */
|
---|
| 398 | hsai->Instance->CR1&=~(SAI_xCR1_MODE | SAI_xCR1_PRTCFG | SAI_xCR1_DS | \
|
---|
| 399 | SAI_xCR1_LSBFIRST | SAI_xCR1_CKSTR | SAI_xCR1_SYNCEN |\
|
---|
| 400 | SAI_xCR1_MONO | SAI_xCR1_OUTDRIV | SAI_xCR1_DMAEN | \
|
---|
| 401 | SAI_xCR1_NODIV | SAI_xCR1_MCKDIV);
|
---|
| 402 |
|
---|
| 403 | hsai->Instance->CR1|= (hsai->Init.AudioMode | hsai->Init.Protocol | \
|
---|
| 404 | hsai->Init.DataSize | hsai->Init.FirstBit | \
|
---|
| 405 | hsai->Init.ClockStrobing | hsai->Init.Synchro | \
|
---|
| 406 | hsai->Init.MonoStereoMode | hsai->Init.OutputDrive | \
|
---|
| 407 | hsai->Init.NoDivider | (hsai->Init.Mckdiv << 20) | hsai->Init.CompandingMode);
|
---|
| 408 |
|
---|
| 409 | /* SAI CR2 Configuration */
|
---|
| 410 | hsai->Instance->CR2&= ~(SAI_xCR2_FTH | SAI_xCR2_FFLUSH | SAI_xCR2_COMP);
|
---|
| 411 | hsai->Instance->CR2|= (hsai->Init.FIFOThreshold | hsai->Init.CompandingMode | hsai->Init.TriState);
|
---|
| 412 |
|
---|
| 413 |
|
---|
| 414 | /* SAI Frame Configuration -----------------------------------------*/
|
---|
| 415 | hsai->Instance->FRCR&=(~(SAI_xFRCR_FRL | SAI_xFRCR_FSALL | SAI_xFRCR_FSDEF | \
|
---|
| 416 | SAI_xFRCR_FSPO | SAI_xFRCR_FSOFF));
|
---|
| 417 | hsai->Instance->FRCR|=((hsai->FrameInit.FrameLength - 1) |
|
---|
| 418 | hsai->FrameInit.FSOffset |
|
---|
| 419 | hsai->FrameInit.FSDefinition |
|
---|
| 420 | hsai->FrameInit.FSPolarity |
|
---|
| 421 | ((hsai->FrameInit.ActiveFrameLength - 1) << 8));
|
---|
| 422 |
|
---|
| 423 | /* SAI Block_x SLOT Configuration ------------------------------------------*/
|
---|
| 424 | /* This register has no meaning in AC 97 and SPDIF audio protocol */
|
---|
| 425 | hsai->Instance->SLOTR&= (~(SAI_xSLOTR_FBOFF | SAI_xSLOTR_SLOTSZ | \
|
---|
| 426 | SAI_xSLOTR_NBSLOT | SAI_xSLOTR_SLOTEN ));
|
---|
| 427 |
|
---|
| 428 | hsai->Instance->SLOTR|= hsai->SlotInit.FirstBitOffset | hsai->SlotInit.SlotSize
|
---|
| 429 | | hsai->SlotInit.SlotActive | ((hsai->SlotInit.SlotNumber - 1) << 8);
|
---|
| 430 |
|
---|
| 431 | /* Initialise the error code */
|
---|
| 432 | hsai->ErrorCode = HAL_SAI_ERROR_NONE;
|
---|
| 433 |
|
---|
| 434 | /* Initialize the SAI state */
|
---|
| 435 | hsai->State= HAL_SAI_STATE_READY;
|
---|
| 436 |
|
---|
| 437 | /* Release Lock */
|
---|
| 438 | __HAL_UNLOCK(hsai);
|
---|
| 439 |
|
---|
| 440 | return HAL_OK;
|
---|
| 441 | }
|
---|
| 442 |
|
---|
| 443 | /**
|
---|
| 444 | * @brief DeInitializes the SAI peripheral.
|
---|
| 445 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 446 | * the configuration information for SAI module.
|
---|
| 447 | * @retval HAL status
|
---|
| 448 | */
|
---|
| 449 | HAL_StatusTypeDef HAL_SAI_DeInit(SAI_HandleTypeDef *hsai)
|
---|
| 450 | {
|
---|
| 451 | /* Check the SAI handle allocation */
|
---|
| 452 | if(hsai == NULL)
|
---|
| 453 | {
|
---|
| 454 | return HAL_ERROR;
|
---|
| 455 | }
|
---|
| 456 |
|
---|
| 457 | hsai->State = HAL_SAI_STATE_BUSY;
|
---|
| 458 |
|
---|
| 459 | /* Disabled All interrupt and clear all the flag */
|
---|
| 460 | hsai->Instance->IMR = 0;
|
---|
| 461 | hsai->Instance->CLRFR = 0xFFFFFFFF;
|
---|
| 462 |
|
---|
| 463 | /* Disable the SAI */
|
---|
| 464 | SAI_Disable(hsai);
|
---|
| 465 |
|
---|
| 466 | /* Flush the fifo */
|
---|
| 467 | SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH);
|
---|
| 468 |
|
---|
| 469 | /* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
|
---|
| 470 | HAL_SAI_MspDeInit(hsai);
|
---|
| 471 |
|
---|
| 472 | /* Initialize the error code */
|
---|
| 473 | hsai->ErrorCode = HAL_SAI_ERROR_NONE;
|
---|
| 474 |
|
---|
| 475 | /* Initialize the SAI state */
|
---|
| 476 | hsai->State = HAL_SAI_STATE_RESET;
|
---|
| 477 |
|
---|
| 478 | /* Release Lock */
|
---|
| 479 | __HAL_UNLOCK(hsai);
|
---|
| 480 |
|
---|
| 481 | return HAL_OK;
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 | /**
|
---|
| 485 | * @brief SAI MSP Init.
|
---|
| 486 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 487 | * the configuration information for SAI module.
|
---|
| 488 | * @retval None
|
---|
| 489 | */
|
---|
| 490 | __weak void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
|
---|
| 491 | {
|
---|
| 492 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 493 | the HAL_SAI_MspInit could be implemented in the user file
|
---|
| 494 | */
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | /**
|
---|
| 498 | * @brief SAI MSP DeInit.
|
---|
| 499 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 500 | * the configuration information for SAI module.
|
---|
| 501 | * @retval None
|
---|
| 502 | */
|
---|
| 503 | __weak void HAL_SAI_MspDeInit(SAI_HandleTypeDef *hsai)
|
---|
| 504 | {
|
---|
| 505 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 506 | the HAL_SAI_MspDeInit could be implemented in the user file
|
---|
| 507 | */
|
---|
| 508 | }
|
---|
| 509 |
|
---|
| 510 | /**
|
---|
| 511 | * @}
|
---|
| 512 | */
|
---|
| 513 |
|
---|
| 514 | /** @defgroup SAI_Exported_Functions_Group2 IO operation functions
|
---|
| 515 | * @brief Data transfers functions
|
---|
| 516 | *
|
---|
| 517 | @verbatim
|
---|
| 518 | ===============================================================================
|
---|
| 519 | ##### IO operation functions #####
|
---|
| 520 | ===============================================================================
|
---|
| 521 | [..]
|
---|
| 522 | This subsection provides a set of functions allowing to manage the SAI data
|
---|
| 523 | transfers.
|
---|
| 524 |
|
---|
| 525 | (+) There are two modes of transfer:
|
---|
| 526 | (++) Blocking mode : The communication is performed in the polling mode.
|
---|
| 527 | The status of all data processing is returned by the same function
|
---|
| 528 | after finishing transfer.
|
---|
| 529 | (++) No-Blocking mode : The communication is performed using Interrupts
|
---|
| 530 | or DMA. These functions return the status of the transfer startup.
|
---|
| 531 | The end of the data processing will be indicated through the
|
---|
| 532 | dedicated SAI IRQ when using Interrupt mode or the DMA IRQ when
|
---|
| 533 | using DMA mode.
|
---|
| 534 |
|
---|
| 535 | (+) Blocking mode functions are :
|
---|
| 536 | (++) HAL_SAI_Transmit()
|
---|
| 537 | (++) HAL_SAI_Receive()
|
---|
| 538 | (++) HAL_SAI_TransmitReceive()
|
---|
| 539 |
|
---|
| 540 | (+) Non Blocking mode functions with Interrupt are :
|
---|
| 541 | (++) HAL_SAI_Transmit_IT()
|
---|
| 542 | (++) HAL_SAI_Receive_IT()
|
---|
| 543 | (++) HAL_SAI_TransmitReceive_IT()
|
---|
| 544 |
|
---|
| 545 | (+) Non Blocking mode functions with DMA are :
|
---|
| 546 | (++) HAL_SAI_Transmit_DMA()
|
---|
| 547 | (++) HAL_SAI_Receive_DMA()
|
---|
| 548 | (++) HAL_SAI_TransmitReceive_DMA()
|
---|
| 549 |
|
---|
| 550 | (+) A set of Transfer Complete Callbacks are provided in non Blocking mode:
|
---|
| 551 | (++) HAL_SAI_TxCpltCallback()
|
---|
| 552 | (++) HAL_SAI_RxCpltCallback()
|
---|
| 553 | (++) HAL_SAI_ErrorCallback()
|
---|
| 554 |
|
---|
| 555 | @endverbatim
|
---|
| 556 | * @{
|
---|
| 557 | */
|
---|
| 558 |
|
---|
| 559 | /**
|
---|
| 560 | * @brief Transmits an amount of data in blocking mode.
|
---|
| 561 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 562 | * the configuration information for SAI module.
|
---|
| 563 | * @param pData: Pointer to data buffer
|
---|
| 564 | * @param Size: Amount of data to be sent
|
---|
| 565 | * @param Timeout: Timeout duration
|
---|
| 566 | * @retval HAL status
|
---|
| 567 | */
|
---|
| 568 | HAL_StatusTypeDef HAL_SAI_Transmit(SAI_HandleTypeDef *hsai, uint8_t* pData, uint16_t Size, uint32_t Timeout)
|
---|
| 569 | {
|
---|
| 570 | uint32_t tickstart = 0;
|
---|
| 571 |
|
---|
| 572 | if((pData == NULL ) || (Size == 0))
|
---|
| 573 | {
|
---|
| 574 | return HAL_ERROR;
|
---|
| 575 | }
|
---|
| 576 |
|
---|
| 577 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 578 | {
|
---|
| 579 | /* Process Locked */
|
---|
| 580 | __HAL_LOCK(hsai);
|
---|
| 581 |
|
---|
| 582 | hsai->State = HAL_SAI_STATE_BUSY_TX;
|
---|
| 583 | hsai->ErrorCode = HAL_SAI_ERROR_NONE;
|
---|
| 584 | hsai->XferSize = Size;
|
---|
| 585 | hsai->XferCount = Size;
|
---|
| 586 | hsai->pBuffPtr = pData;
|
---|
| 587 |
|
---|
| 588 | /* Check if the SAI is already enabled */
|
---|
| 589 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 590 | {
|
---|
| 591 | /* fill the fifo with data before to enabled the SAI */
|
---|
| 592 | SAI_FillFifo(hsai);
|
---|
| 593 | /* Enable SAI peripheral */
|
---|
| 594 | __HAL_SAI_ENABLE(hsai);
|
---|
| 595 | }
|
---|
| 596 |
|
---|
| 597 | while(hsai->XferCount > 0)
|
---|
| 598 | {
|
---|
| 599 | /* Write data if the FIFO is not full */
|
---|
| 600 | if((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL)
|
---|
| 601 | {
|
---|
| 602 | if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
|
---|
| 603 | {
|
---|
| 604 | hsai->Instance->DR = (*hsai->pBuffPtr++);
|
---|
| 605 | }
|
---|
| 606 | else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
|
---|
| 607 | {
|
---|
| 608 | hsai->Instance->DR = *((uint16_t *)hsai->pBuffPtr);
|
---|
| 609 | hsai->pBuffPtr+= 2;
|
---|
| 610 | }
|
---|
| 611 | else
|
---|
| 612 | {
|
---|
| 613 | hsai->Instance->DR = *((uint32_t *)hsai->pBuffPtr);
|
---|
| 614 | hsai->pBuffPtr+= 4;
|
---|
| 615 | }
|
---|
| 616 | hsai->XferCount--;
|
---|
| 617 | }
|
---|
| 618 | else
|
---|
| 619 | {
|
---|
| 620 | /* Get tick */
|
---|
| 621 | tickstart = HAL_GetTick();
|
---|
| 622 | /* Check for the Timeout */
|
---|
| 623 | if(Timeout != HAL_MAX_DELAY)
|
---|
| 624 | {
|
---|
| 625 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
|
---|
| 626 | {
|
---|
| 627 | /* Update error code */
|
---|
| 628 | hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
|
---|
| 629 |
|
---|
| 630 | /* Process Unlocked */
|
---|
| 631 | __HAL_UNLOCK(hsai);
|
---|
| 632 |
|
---|
| 633 | /* Change the SAI state */
|
---|
| 634 | hsai->State = HAL_SAI_STATE_TIMEOUT;
|
---|
| 635 |
|
---|
| 636 | return HAL_TIMEOUT;
|
---|
| 637 | }
|
---|
| 638 | }
|
---|
| 639 | }
|
---|
| 640 | }
|
---|
| 641 |
|
---|
| 642 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 643 |
|
---|
| 644 | /* Process Unlocked */
|
---|
| 645 | __HAL_UNLOCK(hsai);
|
---|
| 646 |
|
---|
| 647 | return HAL_OK;
|
---|
| 648 | }
|
---|
| 649 | else
|
---|
| 650 | {
|
---|
| 651 | return HAL_BUSY;
|
---|
| 652 | }
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | /**
|
---|
| 656 | * @brief Receives an amount of data in blocking mode.
|
---|
| 657 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 658 | * the configuration information for SAI module.
|
---|
| 659 | * @param pData: Pointer to data buffer
|
---|
| 660 | * @param Size: Amount of data to be received
|
---|
| 661 | * @param Timeout: Timeout duration
|
---|
| 662 | * @retval HAL status
|
---|
| 663 | */
|
---|
| 664 | HAL_StatusTypeDef HAL_SAI_Receive(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size, uint32_t Timeout)
|
---|
| 665 | {
|
---|
| 666 | uint32_t tickstart = 0;
|
---|
| 667 |
|
---|
| 668 | if((pData == NULL ) || (Size == 0))
|
---|
| 669 | {
|
---|
| 670 | return HAL_ERROR;
|
---|
| 671 | }
|
---|
| 672 |
|
---|
| 673 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 674 | {
|
---|
| 675 | /* Process Locked */
|
---|
| 676 | __HAL_LOCK(hsai);
|
---|
| 677 |
|
---|
| 678 | hsai->State = HAL_SAI_STATE_BUSY_RX;
|
---|
| 679 | hsai->ErrorCode = HAL_SAI_ERROR_NONE;
|
---|
| 680 | hsai->pBuffPtr = pData;
|
---|
| 681 | hsai->XferSize = Size;
|
---|
| 682 | hsai->XferCount = Size;
|
---|
| 683 |
|
---|
| 684 | /* Check if the SAI is already enabled */
|
---|
| 685 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 686 | {
|
---|
| 687 | /* Enable SAI peripheral */
|
---|
| 688 | __HAL_SAI_ENABLE(hsai);
|
---|
| 689 | }
|
---|
| 690 |
|
---|
| 691 | /* Receive data */
|
---|
| 692 | while(hsai->XferCount > 0)
|
---|
| 693 | {
|
---|
| 694 |
|
---|
| 695 | if((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_EMPTY)
|
---|
| 696 | {
|
---|
| 697 | if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
|
---|
| 698 | {
|
---|
| 699 | (*hsai->pBuffPtr++) = hsai->Instance->DR;
|
---|
| 700 | }
|
---|
| 701 | else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
|
---|
| 702 | {
|
---|
| 703 | *((uint16_t*)hsai->pBuffPtr) = hsai->Instance->DR;
|
---|
| 704 | hsai->pBuffPtr+= 2;
|
---|
| 705 | }
|
---|
| 706 | else
|
---|
| 707 | {
|
---|
| 708 | *((uint32_t*)hsai->pBuffPtr) = hsai->Instance->DR;
|
---|
| 709 | hsai->pBuffPtr+= 4;
|
---|
| 710 | }
|
---|
| 711 | hsai->XferCount--;
|
---|
| 712 | }
|
---|
| 713 | else
|
---|
| 714 | {
|
---|
| 715 | /* Get tick */
|
---|
| 716 | tickstart = HAL_GetTick();
|
---|
| 717 | /* Check for the Timeout */
|
---|
| 718 | if(Timeout != HAL_MAX_DELAY)
|
---|
| 719 | {
|
---|
| 720 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
|
---|
| 721 | {
|
---|
| 722 | /* Update error code */
|
---|
| 723 | hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
|
---|
| 724 |
|
---|
| 725 | /* Process Unlocked */
|
---|
| 726 | __HAL_UNLOCK(hsai);
|
---|
| 727 |
|
---|
| 728 | /* Change the SAI state */
|
---|
| 729 | hsai->State = HAL_SAI_STATE_TIMEOUT;
|
---|
| 730 |
|
---|
| 731 | return HAL_TIMEOUT;
|
---|
| 732 | }
|
---|
| 733 | }
|
---|
| 734 | }
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 738 |
|
---|
| 739 | /* Process Unlocked */
|
---|
| 740 | __HAL_UNLOCK(hsai);
|
---|
| 741 |
|
---|
| 742 | return HAL_OK;
|
---|
| 743 | }
|
---|
| 744 | else
|
---|
| 745 | {
|
---|
| 746 | return HAL_BUSY;
|
---|
| 747 | }
|
---|
| 748 | }
|
---|
| 749 |
|
---|
| 750 | /**
|
---|
| 751 | * @brief Transmits an amount of data in no-blocking mode with Interrupt.
|
---|
| 752 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 753 | * the configuration information for SAI module.
|
---|
| 754 | * @param pData: Pointer to data buffer
|
---|
| 755 | * @param Size: Amount of data to be sent
|
---|
| 756 | * @retval HAL status
|
---|
| 757 | */
|
---|
| 758 | HAL_StatusTypeDef HAL_SAI_Transmit_IT(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size)
|
---|
| 759 | {
|
---|
| 760 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 761 | {
|
---|
| 762 | if((pData == NULL) || (Size == 0))
|
---|
| 763 | {
|
---|
| 764 | return HAL_ERROR;
|
---|
| 765 | }
|
---|
| 766 |
|
---|
| 767 | hsai->pBuffPtr = pData;
|
---|
| 768 | hsai->XferSize = Size;
|
---|
| 769 | hsai->XferCount = Size;
|
---|
| 770 |
|
---|
| 771 | /* Process Locked */
|
---|
| 772 | __HAL_LOCK(hsai);
|
---|
| 773 |
|
---|
| 774 | hsai->State = HAL_SAI_STATE_BUSY_TX;
|
---|
| 775 |
|
---|
| 776 | if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
|
---|
| 777 | {
|
---|
| 778 | hsai->InterruptServiceRoutine = SAI_Transmit_IT8Bit;
|
---|
| 779 | }
|
---|
| 780 | else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
|
---|
| 781 | {
|
---|
| 782 | hsai->InterruptServiceRoutine = SAI_Transmit_IT16Bit;
|
---|
| 783 | }
|
---|
| 784 | else
|
---|
| 785 | {
|
---|
| 786 | hsai->InterruptServiceRoutine = SAI_Transmit_IT32Bit;
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | /* Enable FRQ and OVRUDR interrupts */
|
---|
| 790 | __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 791 |
|
---|
| 792 | /* Check if the SAI is already enabled */
|
---|
| 793 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 794 | {
|
---|
| 795 | /* Fill the fifo before starting the communication */
|
---|
| 796 | SAI_FillFifo(hsai);
|
---|
| 797 |
|
---|
| 798 | /* Enable SAI peripheral */
|
---|
| 799 | __HAL_SAI_ENABLE(hsai);
|
---|
| 800 | }
|
---|
| 801 | /* Process Unlocked */
|
---|
| 802 | __HAL_UNLOCK(hsai);
|
---|
| 803 |
|
---|
| 804 | return HAL_OK;
|
---|
| 805 | }
|
---|
| 806 | else
|
---|
| 807 | {
|
---|
| 808 | return HAL_BUSY;
|
---|
| 809 | }
|
---|
| 810 | }
|
---|
| 811 |
|
---|
| 812 | /**
|
---|
| 813 | * @brief Receives an amount of data in no-blocking mode with Interrupt.
|
---|
| 814 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 815 | * the configuration information for SAI module.
|
---|
| 816 | * @param pData: Pointer to data buffer
|
---|
| 817 | * @param Size: Amount of data to be received
|
---|
| 818 | * @retval HAL status
|
---|
| 819 | */
|
---|
| 820 | HAL_StatusTypeDef HAL_SAI_Receive_IT(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size)
|
---|
| 821 | {
|
---|
| 822 |
|
---|
| 823 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 824 | {
|
---|
| 825 | if((pData == NULL) || (Size == 0))
|
---|
| 826 | {
|
---|
| 827 | return HAL_ERROR;
|
---|
| 828 | }
|
---|
| 829 |
|
---|
| 830 | hsai->pBuffPtr = pData;
|
---|
| 831 | hsai->XferSize = Size;
|
---|
| 832 | hsai->XferCount = Size;
|
---|
| 833 |
|
---|
| 834 | /* Process Locked */
|
---|
| 835 | __HAL_LOCK(hsai);
|
---|
| 836 |
|
---|
| 837 | hsai->State = HAL_SAI_STATE_BUSY_RX;
|
---|
| 838 |
|
---|
| 839 | if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
|
---|
| 840 | {
|
---|
| 841 | hsai->InterruptServiceRoutine = SAI_Receive_IT8Bit;
|
---|
| 842 | }
|
---|
| 843 | else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
|
---|
| 844 | {
|
---|
| 845 | hsai->InterruptServiceRoutine = SAI_Receive_IT16Bit;
|
---|
| 846 | }
|
---|
| 847 | else
|
---|
| 848 | {
|
---|
| 849 | hsai->InterruptServiceRoutine = SAI_Receive_IT32Bit;
|
---|
| 850 | }
|
---|
| 851 | /* Enable TXE and OVRUDR interrupts */
|
---|
| 852 | __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 853 |
|
---|
| 854 | /* Check if the SAI is already enabled */
|
---|
| 855 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 856 | {
|
---|
| 857 | /* Enable SAI peripheral */
|
---|
| 858 | __HAL_SAI_ENABLE(hsai);
|
---|
| 859 | }
|
---|
| 860 |
|
---|
| 861 | /* Process Unlocked */
|
---|
| 862 | __HAL_UNLOCK(hsai);
|
---|
| 863 |
|
---|
| 864 | return HAL_OK;
|
---|
| 865 | }
|
---|
| 866 | else
|
---|
| 867 | {
|
---|
| 868 | return HAL_BUSY;
|
---|
| 869 | }
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 | /**
|
---|
| 873 | * @brief Pauses the audio stream playing from the Media.
|
---|
| 874 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 875 | * the configuration information for SAI module.
|
---|
| 876 | * @retval HAL status
|
---|
| 877 | */
|
---|
| 878 | HAL_StatusTypeDef HAL_SAI_DMAPause(SAI_HandleTypeDef *hsai)
|
---|
| 879 | {
|
---|
| 880 | /* Process Locked */
|
---|
| 881 | __HAL_LOCK(hsai);
|
---|
| 882 |
|
---|
| 883 | /* Pause the audio file playing by disabling the SAI DMA requests */
|
---|
| 884 | hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
|
---|
| 885 |
|
---|
| 886 | /* Process Unlocked */
|
---|
| 887 | __HAL_UNLOCK(hsai);
|
---|
| 888 |
|
---|
| 889 | return HAL_OK;
|
---|
| 890 | }
|
---|
| 891 |
|
---|
| 892 | /**
|
---|
| 893 | * @brief Resumes the audio stream playing from the Media.
|
---|
| 894 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 895 | * the configuration information for SAI module.
|
---|
| 896 | * @retval HAL status
|
---|
| 897 | */
|
---|
| 898 | HAL_StatusTypeDef HAL_SAI_DMAResume(SAI_HandleTypeDef *hsai)
|
---|
| 899 | {
|
---|
| 900 | /* Process Locked */
|
---|
| 901 | __HAL_LOCK(hsai);
|
---|
| 902 |
|
---|
| 903 | /* Enable the SAI DMA requests */
|
---|
| 904 | hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
|
---|
| 905 |
|
---|
| 906 | /* If the SAI peripheral is still not enabled, enable it */
|
---|
| 907 | if ((hsai->Instance->CR1 & SAI_xCR1_SAIEN) == RESET)
|
---|
| 908 | {
|
---|
| 909 | /* Enable SAI peripheral */
|
---|
| 910 | __HAL_SAI_ENABLE(hsai);
|
---|
| 911 | }
|
---|
| 912 |
|
---|
| 913 | /* Process Unlocked */
|
---|
| 914 | __HAL_UNLOCK(hsai);
|
---|
| 915 |
|
---|
| 916 | return HAL_OK;
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | /**
|
---|
| 920 | * @brief Stops the audio stream playing from the Media.
|
---|
| 921 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 922 | * the configuration information for SAI module.
|
---|
| 923 | * @retval HAL status
|
---|
| 924 | */
|
---|
| 925 | HAL_StatusTypeDef HAL_SAI_DMAStop(SAI_HandleTypeDef *hsai)
|
---|
| 926 | {
|
---|
| 927 | /* Process Locked */
|
---|
| 928 | __HAL_LOCK(hsai);
|
---|
| 929 |
|
---|
| 930 | /* Disable the SAI DMA request */
|
---|
| 931 | hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
|
---|
| 932 |
|
---|
| 933 | /* Abort the SAI DMA Tx Stream */
|
---|
| 934 | if(hsai->hdmatx != NULL)
|
---|
| 935 | {
|
---|
| 936 | HAL_DMA_Abort(hsai->hdmatx);
|
---|
| 937 | }
|
---|
| 938 | /* Abort the SAI DMA Rx Stream */
|
---|
| 939 | if(hsai->hdmarx != NULL)
|
---|
| 940 | {
|
---|
| 941 | HAL_DMA_Abort(hsai->hdmarx);
|
---|
| 942 | }
|
---|
| 943 |
|
---|
| 944 | /* Disable SAI peripheral */
|
---|
| 945 | SAI_Disable(hsai);
|
---|
| 946 |
|
---|
| 947 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 948 |
|
---|
| 949 | /* Process Unlocked */
|
---|
| 950 | __HAL_UNLOCK(hsai);
|
---|
| 951 |
|
---|
| 952 | return HAL_OK;
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | /**
|
---|
| 956 | * @brief Abort the current transfer and disbaled the SAI.
|
---|
| 957 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 958 | * the configuration information for SAI module.
|
---|
| 959 | * @retval HAL status
|
---|
| 960 | */
|
---|
| 961 | HAL_StatusTypeDef HAL_SAI_Abort(SAI_HandleTypeDef *hsai)
|
---|
| 962 | {
|
---|
| 963 | /* Disable the SAI DMA request */
|
---|
| 964 | hsai->Instance->CR1 &= ~SAI_xCR1_DMAEN;
|
---|
| 965 |
|
---|
| 966 | /* Abort the SAI DMA Tx Stream */
|
---|
| 967 | if(hsai->hdmatx != NULL)
|
---|
| 968 | {
|
---|
| 969 | HAL_DMA_Abort(hsai->hdmatx);
|
---|
| 970 | }
|
---|
| 971 | /* Abort the SAI DMA Rx Stream */
|
---|
| 972 | if(hsai->hdmarx != NULL)
|
---|
| 973 | {
|
---|
| 974 | HAL_DMA_Abort(hsai->hdmarx);
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 | /* Disabled All interrupt and clear all the flag */
|
---|
| 978 | hsai->Instance->IMR = 0;
|
---|
| 979 | hsai->Instance->CLRFR = 0xFFFFFFFF;
|
---|
| 980 |
|
---|
| 981 | /* Disable SAI peripheral */
|
---|
| 982 | SAI_Disable(hsai);
|
---|
| 983 |
|
---|
| 984 | /* Flush the fifo */
|
---|
| 985 | SET_BIT(hsai->Instance->CR2, SAI_xCR2_FFLUSH);
|
---|
| 986 |
|
---|
| 987 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 988 |
|
---|
| 989 | /* Process Unlocked */
|
---|
| 990 | __HAL_UNLOCK(hsai);
|
---|
| 991 |
|
---|
| 992 | return HAL_OK;
|
---|
| 993 | }
|
---|
| 994 |
|
---|
| 995 | /**
|
---|
| 996 | * @brief Transmits an amount of data in no-blocking mode with DMA.
|
---|
| 997 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 998 | * the configuration information for SAI module.
|
---|
| 999 | * @param pData: Pointer to data buffer
|
---|
| 1000 | * @param Size: Amount of data to be sent
|
---|
| 1001 | * @retval HAL status
|
---|
| 1002 | */
|
---|
| 1003 | HAL_StatusTypeDef HAL_SAI_Transmit_DMA(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size)
|
---|
| 1004 | {
|
---|
| 1005 | uint32_t *tmp;
|
---|
| 1006 |
|
---|
| 1007 | if((pData == NULL) || (Size == 0))
|
---|
| 1008 | {
|
---|
| 1009 | return HAL_ERROR;
|
---|
| 1010 | }
|
---|
| 1011 |
|
---|
| 1012 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 1013 | {
|
---|
| 1014 | hsai->pBuffPtr = pData;
|
---|
| 1015 | hsai->XferSize = Size;
|
---|
| 1016 | hsai->XferCount = Size;
|
---|
| 1017 |
|
---|
| 1018 | /* Process Locked */
|
---|
| 1019 | __HAL_LOCK(hsai);
|
---|
| 1020 |
|
---|
| 1021 | hsai->State = HAL_SAI_STATE_BUSY_TX;
|
---|
| 1022 |
|
---|
| 1023 | /* Set the SAI Tx DMA Half transfer complete callback */
|
---|
| 1024 | hsai->hdmatx->XferHalfCpltCallback = SAI_DMATxHalfCplt;
|
---|
| 1025 |
|
---|
| 1026 | /* Set the SAI TxDMA transfer complete callback */
|
---|
| 1027 | hsai->hdmatx->XferCpltCallback = SAI_DMATxCplt;
|
---|
| 1028 |
|
---|
| 1029 | /* Set the DMA error callback */
|
---|
| 1030 | hsai->hdmatx->XferErrorCallback = SAI_DMAError;
|
---|
| 1031 |
|
---|
| 1032 | /* Enable the Tx DMA Stream */
|
---|
| 1033 | tmp = (uint32_t*)&pData;
|
---|
| 1034 | HAL_DMA_Start_IT(hsai->hdmatx, *(uint32_t*)tmp, (uint32_t)&hsai->Instance->DR, hsai->XferSize);
|
---|
| 1035 |
|
---|
| 1036 | /* Check if the SAI is already enabled */
|
---|
| 1037 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 1038 | {
|
---|
| 1039 | /* Enable SAI peripheral */
|
---|
| 1040 | __HAL_SAI_ENABLE(hsai);
|
---|
| 1041 | }
|
---|
| 1042 |
|
---|
| 1043 | /* Enable the interrupts for error handling */
|
---|
| 1044 | __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
|
---|
| 1045 |
|
---|
| 1046 | /* Enable SAI Tx DMA Request */
|
---|
| 1047 | hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
|
---|
| 1048 |
|
---|
| 1049 | /* Process Unlocked */
|
---|
| 1050 | __HAL_UNLOCK(hsai);
|
---|
| 1051 |
|
---|
| 1052 | return HAL_OK;
|
---|
| 1053 | }
|
---|
| 1054 | else
|
---|
| 1055 | {
|
---|
| 1056 | return HAL_BUSY;
|
---|
| 1057 | }
|
---|
| 1058 | }
|
---|
| 1059 |
|
---|
| 1060 | /**
|
---|
| 1061 | * @brief Receives an amount of data in no-blocking mode with DMA.
|
---|
| 1062 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1063 | * the configuration information for SAI module.
|
---|
| 1064 | * @param pData: Pointer to data buffer
|
---|
| 1065 | * @param Size: Amount of data to be received
|
---|
| 1066 | * @retval HAL status
|
---|
| 1067 | */
|
---|
| 1068 | HAL_StatusTypeDef HAL_SAI_Receive_DMA(SAI_HandleTypeDef *hsai, uint8_t *pData, uint16_t Size)
|
---|
| 1069 | {
|
---|
| 1070 | uint32_t *tmp;
|
---|
| 1071 |
|
---|
| 1072 | if((pData == NULL) || (Size == 0))
|
---|
| 1073 | {
|
---|
| 1074 | return HAL_ERROR;
|
---|
| 1075 | }
|
---|
| 1076 |
|
---|
| 1077 | if(hsai->State == HAL_SAI_STATE_READY)
|
---|
| 1078 | {
|
---|
| 1079 | hsai->pBuffPtr = pData;
|
---|
| 1080 | hsai->XferSize = Size;
|
---|
| 1081 | hsai->XferCount = Size;
|
---|
| 1082 |
|
---|
| 1083 | /* Process Locked */
|
---|
| 1084 | __HAL_LOCK(hsai);
|
---|
| 1085 |
|
---|
| 1086 | hsai->State = HAL_SAI_STATE_BUSY_RX;
|
---|
| 1087 |
|
---|
| 1088 | /* Set the SAI Rx DMA Half transfer complete callback */
|
---|
| 1089 | hsai->hdmarx->XferHalfCpltCallback = SAI_DMARxHalfCplt;
|
---|
| 1090 |
|
---|
| 1091 | /* Set the SAI Rx DMA transfer complete callback */
|
---|
| 1092 | hsai->hdmarx->XferCpltCallback = SAI_DMARxCplt;
|
---|
| 1093 |
|
---|
| 1094 | /* Set the DMA error callback */
|
---|
| 1095 | hsai->hdmarx->XferErrorCallback = SAI_DMAError;
|
---|
| 1096 |
|
---|
| 1097 | /* Enable the Rx DMA Stream */
|
---|
| 1098 | tmp = (uint32_t*)&pData;
|
---|
| 1099 | HAL_DMA_Start_IT(hsai->hdmarx, (uint32_t)&hsai->Instance->DR, *(uint32_t*)tmp, hsai->XferSize);
|
---|
| 1100 |
|
---|
| 1101 | /* Check if the SAI is already enabled */
|
---|
| 1102 | if((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != SAI_xCR1_SAIEN)
|
---|
| 1103 | {
|
---|
| 1104 | /* Enable SAI peripheral */
|
---|
| 1105 | __HAL_SAI_ENABLE(hsai);
|
---|
| 1106 | }
|
---|
| 1107 |
|
---|
| 1108 | /* Enable the interrupts for error handling */
|
---|
| 1109 | __HAL_SAI_ENABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
|
---|
| 1110 |
|
---|
| 1111 | /* Enable SAI Rx DMA Request */
|
---|
| 1112 | hsai->Instance->CR1 |= SAI_xCR1_DMAEN;
|
---|
| 1113 |
|
---|
| 1114 | /* Process Unlocked */
|
---|
| 1115 | __HAL_UNLOCK(hsai);
|
---|
| 1116 |
|
---|
| 1117 | return HAL_OK;
|
---|
| 1118 | }
|
---|
| 1119 | else
|
---|
| 1120 | {
|
---|
| 1121 | return HAL_BUSY;
|
---|
| 1122 | }
|
---|
| 1123 | }
|
---|
| 1124 |
|
---|
| 1125 | /**
|
---|
| 1126 | * @brief Enable the tx mute mode.
|
---|
| 1127 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1128 | * the configuration information for SAI module.
|
---|
| 1129 | * @param val : value sent during the mute @ref SAI_Block_Mute_Value
|
---|
| 1130 | * @retval HAL status
|
---|
| 1131 | */
|
---|
| 1132 | HAL_StatusTypeDef HAL_SAI_EnableTxMuteMode(SAI_HandleTypeDef *hsai, uint16_t val)
|
---|
| 1133 | {
|
---|
| 1134 | assert_param(IS_SAI_BLOCK_MUTE_VALUE(val));
|
---|
| 1135 |
|
---|
| 1136 | if(hsai->State != HAL_SAI_STATE_RESET)
|
---|
| 1137 | {
|
---|
| 1138 | CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL | SAI_xCR2_MUTE);
|
---|
| 1139 | SET_BIT(hsai->Instance->CR2, SAI_xCR2_MUTE | val);
|
---|
| 1140 | return HAL_OK;
|
---|
| 1141 | }
|
---|
| 1142 | return HAL_ERROR;
|
---|
| 1143 | }
|
---|
| 1144 |
|
---|
| 1145 | /**
|
---|
| 1146 | * @brief Disable the tx mute mode.
|
---|
| 1147 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1148 | * the configuration information for SAI module.
|
---|
| 1149 | * @retval HAL status
|
---|
| 1150 | */
|
---|
| 1151 | HAL_StatusTypeDef HAL_SAI_DisableTxMuteMode(SAI_HandleTypeDef *hsai)
|
---|
| 1152 | {
|
---|
| 1153 | if(hsai->State != HAL_SAI_STATE_RESET)
|
---|
| 1154 | {
|
---|
| 1155 | CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTEVAL | SAI_xCR2_MUTE);
|
---|
| 1156 | return HAL_OK;
|
---|
| 1157 | }
|
---|
| 1158 | return HAL_ERROR;
|
---|
| 1159 | }
|
---|
| 1160 |
|
---|
| 1161 | /**
|
---|
| 1162 | * @brief Enable the rx mute detection.
|
---|
| 1163 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1164 | * the configuration information for SAI module.
|
---|
| 1165 | * @param callback : function called when the mute is detected
|
---|
| 1166 | * @param counter : number a data before mute detection max 63.
|
---|
| 1167 | * @retval HAL status
|
---|
| 1168 | */
|
---|
| 1169 | HAL_StatusTypeDef HAL_SAI_EnableRxMuteMode(SAI_HandleTypeDef *hsai, SAIcallback callback, uint16_t counter)
|
---|
| 1170 | {
|
---|
| 1171 | assert_param(IS_SAI_BLOCK_MUTE_COUNTER(counter));
|
---|
| 1172 |
|
---|
| 1173 | if(hsai->State != HAL_SAI_STATE_RESET)
|
---|
| 1174 | {
|
---|
| 1175 | /* set the mute counter */
|
---|
| 1176 | CLEAR_BIT(hsai->Instance->CR2, SAI_xCR2_MUTECNT);
|
---|
| 1177 | SET_BIT(hsai->Instance->CR2, (uint32_t)((uint32_t)counter << 6));
|
---|
| 1178 | hsai->mutecallback = callback;
|
---|
| 1179 | /* enable the IT interrupt */
|
---|
| 1180 | __HAL_SAI_ENABLE_IT(hsai, SAI_IT_MUTEDET);
|
---|
| 1181 | return HAL_OK;
|
---|
| 1182 | }
|
---|
| 1183 | return HAL_ERROR;
|
---|
| 1184 | }
|
---|
| 1185 |
|
---|
| 1186 | /**
|
---|
| 1187 | * @brief Disable the rx mute detection.
|
---|
| 1188 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1189 | * the configuration information for SAI module.
|
---|
| 1190 | * @retval HAL status
|
---|
| 1191 | */
|
---|
| 1192 | HAL_StatusTypeDef HAL_SAI_DisableRxMuteMode(SAI_HandleTypeDef *hsai)
|
---|
| 1193 | {
|
---|
| 1194 | if(hsai->State != HAL_SAI_STATE_RESET)
|
---|
| 1195 | {
|
---|
| 1196 | /* set the mutecallback to NULL */
|
---|
| 1197 | hsai->mutecallback = (SAIcallback)NULL;
|
---|
| 1198 | /* enable the IT interrupt */
|
---|
| 1199 | __HAL_SAI_DISABLE_IT(hsai, SAI_IT_MUTEDET);
|
---|
| 1200 | return HAL_OK;
|
---|
| 1201 | }
|
---|
| 1202 | return HAL_ERROR;
|
---|
| 1203 | }
|
---|
| 1204 |
|
---|
| 1205 | /**
|
---|
| 1206 | * @brief This function handles SAI interrupt request.
|
---|
| 1207 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1208 | * the configuration information for SAI module.
|
---|
| 1209 | * @retval HAL status
|
---|
| 1210 | */
|
---|
| 1211 | void HAL_SAI_IRQHandler(SAI_HandleTypeDef *hsai)
|
---|
| 1212 | {
|
---|
| 1213 | if(hsai->State != HAL_SAI_STATE_RESET)
|
---|
| 1214 | {
|
---|
| 1215 | uint32_t tmpFlag = hsai->Instance->SR;
|
---|
| 1216 | uint32_t tmpItSource = hsai->Instance->IMR;
|
---|
| 1217 |
|
---|
| 1218 | if(((tmpFlag & SAI_xSR_FREQ) == SAI_xSR_FREQ) && ((tmpItSource & SAI_IT_FREQ) == SAI_IT_FREQ))
|
---|
| 1219 | {
|
---|
| 1220 | hsai->InterruptServiceRoutine(hsai);
|
---|
| 1221 | }
|
---|
| 1222 |
|
---|
| 1223 | /* check the flag only if one of them is set */
|
---|
| 1224 | if(tmpFlag != 0x00000000)
|
---|
| 1225 | {
|
---|
| 1226 | /* SAI Overrun error interrupt occurred ----------------------------------*/
|
---|
| 1227 | if(((tmpFlag & SAI_FLAG_OVRUDR) == SAI_FLAG_OVRUDR) && ((tmpItSource & SAI_IT_OVRUDR) == SAI_IT_OVRUDR))
|
---|
| 1228 | {
|
---|
| 1229 | /* Clear the SAI Overrun flag */
|
---|
| 1230 | __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
|
---|
| 1231 | /* Change the SAI error code */
|
---|
| 1232 | hsai->ErrorCode = ((hsai->State == HAL_SAI_STATE_BUSY_RX) ? HAL_SAI_ERROR_OVR : HAL_SAI_ERROR_UDR);
|
---|
| 1233 | /* the transfer is not stopped, we will forward the information to the user and we let the user decide what needs to be done */
|
---|
| 1234 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1235 | }
|
---|
| 1236 |
|
---|
| 1237 | /* SAI mutedet interrupt occurred ----------------------------------*/
|
---|
| 1238 | if(((tmpFlag & SAI_FLAG_MUTEDET) == SAI_FLAG_MUTEDET) && ((tmpItSource & SAI_IT_MUTEDET) == SAI_IT_MUTEDET))
|
---|
| 1239 | {
|
---|
| 1240 | /* Clear the SAI mutedet flag */
|
---|
| 1241 | __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_MUTEDET);
|
---|
| 1242 | /* call the call back function */
|
---|
| 1243 | if(hsai->mutecallback != (SAIcallback)NULL)
|
---|
| 1244 | {
|
---|
| 1245 | /* inform the user that an RX mute event has been detected */
|
---|
| 1246 | hsai->mutecallback();
|
---|
| 1247 | }
|
---|
| 1248 | }
|
---|
| 1249 |
|
---|
| 1250 | /* SAI AFSDET interrupt occurred ----------------------------------*/
|
---|
| 1251 | if(((tmpFlag & SAI_FLAG_AFSDET) == SAI_FLAG_AFSDET) && ((tmpItSource & SAI_IT_AFSDET) == SAI_IT_AFSDET))
|
---|
| 1252 | {
|
---|
| 1253 | /* Change the SAI error code */
|
---|
| 1254 | hsai->ErrorCode = HAL_SAI_ERROR_AFSDET;
|
---|
| 1255 | HAL_SAI_Abort(hsai);
|
---|
| 1256 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1257 | }
|
---|
| 1258 |
|
---|
| 1259 | /* SAI LFSDET interrupt occurred ----------------------------------*/
|
---|
| 1260 | if(((tmpFlag & SAI_FLAG_LFSDET) == SAI_FLAG_LFSDET) && ((tmpItSource & SAI_IT_LFSDET) == SAI_IT_LFSDET))
|
---|
| 1261 | {
|
---|
| 1262 | /* Change the SAI error code */
|
---|
| 1263 | hsai->ErrorCode = HAL_SAI_ERROR_LFSDET;
|
---|
| 1264 | HAL_SAI_Abort(hsai);
|
---|
| 1265 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1266 | }
|
---|
| 1267 |
|
---|
| 1268 | /* SAI WCKCFG interrupt occurred ----------------------------------*/
|
---|
| 1269 | if(((tmpFlag & SAI_FLAG_WCKCFG) == SAI_FLAG_WCKCFG) && ((tmpItSource & SAI_IT_WCKCFG) == SAI_IT_WCKCFG))
|
---|
| 1270 | {
|
---|
| 1271 | /* Change the SAI error code */
|
---|
| 1272 | hsai->ErrorCode = HAL_SAI_ERROR_WCKCFG;
|
---|
| 1273 | HAL_SAI_Abort(hsai);
|
---|
| 1274 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1275 | }
|
---|
| 1276 | }
|
---|
| 1277 | }
|
---|
| 1278 | }
|
---|
| 1279 |
|
---|
| 1280 | /**
|
---|
| 1281 | * @brief Tx Transfer completed callbacks.
|
---|
| 1282 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1283 | * the configuration information for SAI module.
|
---|
| 1284 | * @retval None
|
---|
| 1285 | */
|
---|
| 1286 | __weak void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
|
---|
| 1287 | {
|
---|
| 1288 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 1289 | the HAL_SAI_TxCpltCallback could be implemented in the user file
|
---|
| 1290 | */
|
---|
| 1291 | }
|
---|
| 1292 |
|
---|
| 1293 | /**
|
---|
| 1294 | * @brief Tx Transfer Half completed callbacks
|
---|
| 1295 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1296 | * the configuration information for SAI module.
|
---|
| 1297 | * @retval None
|
---|
| 1298 | */
|
---|
| 1299 | __weak void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
|
---|
| 1300 | {
|
---|
| 1301 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 1302 | the HAL_SAI_TxHalfCpltCallback could be implemented in the user file
|
---|
| 1303 | */
|
---|
| 1304 | }
|
---|
| 1305 |
|
---|
| 1306 | /**
|
---|
| 1307 | * @brief Rx Transfer completed callbacks.
|
---|
| 1308 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1309 | * the configuration information for SAI module.
|
---|
| 1310 | * @retval None
|
---|
| 1311 | */
|
---|
| 1312 | __weak void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai)
|
---|
| 1313 | {
|
---|
| 1314 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 1315 | the HAL_SAI_RxCpltCallback could be implemented in the user file
|
---|
| 1316 | */
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
| 1319 | /**
|
---|
| 1320 | * @brief Rx Transfer half completed callbacks
|
---|
| 1321 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1322 | * the configuration information for SAI module.
|
---|
| 1323 | * @retval None
|
---|
| 1324 | */
|
---|
| 1325 | __weak void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai)
|
---|
| 1326 | {
|
---|
| 1327 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 1328 | the HAL_SAI_RxCpltCallback could be implemented in the user file
|
---|
| 1329 | */
|
---|
| 1330 | }
|
---|
| 1331 |
|
---|
| 1332 | /**
|
---|
| 1333 | * @brief SAI error callbacks.
|
---|
| 1334 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1335 | * the configuration information for SAI module.
|
---|
| 1336 | * @retval None
|
---|
| 1337 | */
|
---|
| 1338 | __weak void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai)
|
---|
| 1339 | {
|
---|
| 1340 | /* NOTE : This function Should not be modified, when the callback is needed,
|
---|
| 1341 | the HAL_SAI_ErrorCallback could be implemented in the user file
|
---|
| 1342 | */
|
---|
| 1343 | }
|
---|
| 1344 |
|
---|
| 1345 | /**
|
---|
| 1346 | * @}
|
---|
| 1347 | */
|
---|
| 1348 |
|
---|
| 1349 |
|
---|
| 1350 | /** @defgroup SAI_Exported_Functions_Group3 Peripheral State functions
|
---|
| 1351 | * @brief Peripheral State functions
|
---|
| 1352 | *
|
---|
| 1353 | @verbatim
|
---|
| 1354 | ===============================================================================
|
---|
| 1355 | ##### Peripheral State and Errors functions #####
|
---|
| 1356 | ===============================================================================
|
---|
| 1357 | [..]
|
---|
| 1358 | This subsection permits to get in run-time the status of the peripheral
|
---|
| 1359 | and the data flow.
|
---|
| 1360 |
|
---|
| 1361 | @endverbatim
|
---|
| 1362 | * @{
|
---|
| 1363 | */
|
---|
| 1364 |
|
---|
| 1365 | /**
|
---|
| 1366 | * @brief Returns the SAI state.
|
---|
| 1367 | * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1368 | * the configuration information for SAI module.
|
---|
| 1369 | * @retval HAL state
|
---|
| 1370 | */
|
---|
| 1371 | HAL_SAI_StateTypeDef HAL_SAI_GetState(SAI_HandleTypeDef *hsai)
|
---|
| 1372 | {
|
---|
| 1373 | return hsai->State;
|
---|
| 1374 | }
|
---|
| 1375 |
|
---|
| 1376 | /**
|
---|
| 1377 | * @brief Return the SAI error code
|
---|
| 1378 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1379 | * the configuration information for the specified SAI Block.
|
---|
| 1380 | * @retval SAI Error Code
|
---|
| 1381 | */
|
---|
| 1382 | uint32_t HAL_SAI_GetError(SAI_HandleTypeDef *hsai)
|
---|
| 1383 | {
|
---|
| 1384 | return hsai->ErrorCode;
|
---|
| 1385 | }
|
---|
| 1386 | /**
|
---|
| 1387 | * @}
|
---|
| 1388 | */
|
---|
| 1389 |
|
---|
| 1390 | /**
|
---|
| 1391 | * @brief Initializes the SAI I2S protocol according to the specified parameters
|
---|
| 1392 | * in the SAI_InitTypeDef and create the associated handle.
|
---|
| 1393 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1394 | * the configuration information for SAI module.
|
---|
| 1395 | * @param protocol : one of the supported protocol
|
---|
| 1396 | * @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
|
---|
| 1397 | * the configuration information for SAI module.
|
---|
| 1398 | * @param nbslot : number of slot minimum value is 2 and max is 16.
|
---|
| 1399 | * the value must be a multiple of 2.
|
---|
| 1400 | * @retval HAL status
|
---|
| 1401 | */
|
---|
| 1402 | static HAL_StatusTypeDef SAI_InitI2S(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
|
---|
| 1403 | {
|
---|
| 1404 | /* Check the parameters */
|
---|
| 1405 | assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
|
---|
| 1406 | assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
|
---|
| 1407 |
|
---|
| 1408 | hsai->Init.Protocol = SAI_FREE_PROTOCOL;
|
---|
| 1409 | hsai->Init.FirstBit = SAI_FIRSTBIT_MSB;
|
---|
| 1410 | hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE;
|
---|
| 1411 | hsai->FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
|
---|
| 1412 | hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL;
|
---|
| 1413 | hsai->SlotInit.FirstBitOffset = 0;
|
---|
| 1414 | hsai->SlotInit.SlotNumber = nbslot;
|
---|
| 1415 |
|
---|
| 1416 | /* in IS2 the number of slot must be even */
|
---|
| 1417 | if((nbslot & 0x1) != 0 )
|
---|
| 1418 | {
|
---|
| 1419 | return HAL_ERROR;
|
---|
| 1420 | }
|
---|
| 1421 |
|
---|
| 1422 | switch(protocol)
|
---|
| 1423 | {
|
---|
| 1424 | case SAI_I2S_STANDARD :
|
---|
| 1425 | hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
|
---|
| 1426 | hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
|
---|
| 1427 | break;
|
---|
| 1428 | case SAI_I2S_MSBJUSTIFIED :
|
---|
| 1429 | case SAI_I2S_LSBJUSTIFIED :
|
---|
| 1430 | hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH;
|
---|
| 1431 | hsai->FrameInit.FSOffset = SAI_FS_FIRSTBIT;
|
---|
| 1432 | break;
|
---|
| 1433 | default :
|
---|
| 1434 | return HAL_ERROR;
|
---|
| 1435 | }
|
---|
| 1436 |
|
---|
| 1437 | /* Frame definition */
|
---|
| 1438 | hsai->Init.DataSize = 0xFFFFFFFF;
|
---|
| 1439 | switch(datasize)
|
---|
| 1440 | {
|
---|
| 1441 | case SAI_PROTOCOL_DATASIZE_16BIT:
|
---|
| 1442 | hsai->Init.DataSize = SAI_DATASIZE_16;
|
---|
| 1443 | hsai->FrameInit.FrameLength = 32*(nbslot/2);
|
---|
| 1444 | hsai->FrameInit.ActiveFrameLength = 16*(nbslot/2);
|
---|
| 1445 | hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B;
|
---|
| 1446 | break;
|
---|
| 1447 | case SAI_PROTOCOL_DATASIZE_16BITEXTENDED :
|
---|
| 1448 | if(hsai->Init.DataSize == 0xFFFFFFFF)
|
---|
| 1449 | {
|
---|
| 1450 | hsai->Init.DataSize = SAI_DATASIZE_16;
|
---|
| 1451 | }
|
---|
| 1452 | break;
|
---|
| 1453 | case SAI_PROTOCOL_DATASIZE_24BIT:
|
---|
| 1454 | if(hsai->Init.DataSize == 0xFFFFFFFF)
|
---|
| 1455 | {
|
---|
| 1456 | hsai->Init.DataSize = SAI_DATASIZE_24;
|
---|
| 1457 | }
|
---|
| 1458 | break;
|
---|
| 1459 | case SAI_PROTOCOL_DATASIZE_32BIT:
|
---|
| 1460 | if(hsai->Init.DataSize == 0xFFFFFFFF)
|
---|
| 1461 | {
|
---|
| 1462 | hsai->Init.DataSize = SAI_DATASIZE_32;
|
---|
| 1463 | }
|
---|
| 1464 | hsai->FrameInit.FrameLength = 64*(nbslot/2);
|
---|
| 1465 | hsai->FrameInit.ActiveFrameLength = 32*(nbslot/2);
|
---|
| 1466 | hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
|
---|
| 1467 | if(protocol == SAI_I2S_LSBJUSTIFIED)
|
---|
| 1468 | {
|
---|
| 1469 | if (datasize == SAI_PROTOCOL_DATASIZE_16BITEXTENDED)
|
---|
| 1470 | {
|
---|
| 1471 | hsai->SlotInit.FirstBitOffset = 16;
|
---|
| 1472 | }
|
---|
| 1473 | if (datasize == SAI_PROTOCOL_DATASIZE_24BIT)
|
---|
| 1474 | {
|
---|
| 1475 | hsai->SlotInit.FirstBitOffset = 8;
|
---|
| 1476 | }
|
---|
| 1477 | }
|
---|
| 1478 | break;
|
---|
| 1479 | default :
|
---|
| 1480 | return HAL_ERROR;
|
---|
| 1481 | }
|
---|
| 1482 |
|
---|
| 1483 | return HAL_OK;
|
---|
| 1484 | }
|
---|
| 1485 |
|
---|
| 1486 | /**
|
---|
| 1487 | * @brief Initializes the SAI PCM protocol according to the specified parameters
|
---|
| 1488 | * in the SAI_InitTypeDef and create the associated handle.
|
---|
| 1489 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1490 | * the configuration information for SAI module.
|
---|
| 1491 | * @param protocol : one of the supported protocol
|
---|
| 1492 | * @param datasize : one of the supported datasize @ref SAI_Protocol_DataSize
|
---|
| 1493 | * @param nbslot : number of slot minimum value is 1 and the max is 16.
|
---|
| 1494 | * @retval HAL status
|
---|
| 1495 | */
|
---|
| 1496 | static HAL_StatusTypeDef SAI_InitPCM(SAI_HandleTypeDef *hsai, uint32_t protocol, uint32_t datasize, uint32_t nbslot)
|
---|
| 1497 | {
|
---|
| 1498 | /* Check the parameters */
|
---|
| 1499 | assert_param(IS_SAI_SUPPORTED_PROTOCOL(protocol));
|
---|
| 1500 | assert_param(IS_SAI_PROTOCOL_DATASIZE(datasize));
|
---|
| 1501 |
|
---|
| 1502 | hsai->Init.Protocol = SAI_FREE_PROTOCOL;
|
---|
| 1503 | hsai->Init.FirstBit = SAI_FIRSTBIT_MSB;
|
---|
| 1504 | hsai->Init.ClockStrobing = SAI_CLOCKSTROBING_FALLINGEDGE;
|
---|
| 1505 | hsai->FrameInit.FSDefinition = SAI_FS_STARTFRAME;
|
---|
| 1506 | hsai->FrameInit.FSPolarity = SAI_FS_ACTIVE_HIGH;
|
---|
| 1507 | hsai->FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
|
---|
| 1508 | hsai->SlotInit.FirstBitOffset = 0;
|
---|
| 1509 | hsai->SlotInit.SlotNumber = nbslot;
|
---|
| 1510 | hsai->SlotInit.SlotActive = SAI_SLOTACTIVE_ALL;
|
---|
| 1511 |
|
---|
| 1512 | switch(protocol)
|
---|
| 1513 | {
|
---|
| 1514 | case SAI_PCM_SHORT :
|
---|
| 1515 | hsai->FrameInit.ActiveFrameLength = 1;
|
---|
| 1516 | break;
|
---|
| 1517 | case SAI_PCM_LONG :
|
---|
| 1518 | hsai->FrameInit.ActiveFrameLength = 13;
|
---|
| 1519 | break;
|
---|
| 1520 | default :
|
---|
| 1521 | return HAL_ERROR;
|
---|
| 1522 | }
|
---|
| 1523 |
|
---|
| 1524 | switch(datasize)
|
---|
| 1525 | {
|
---|
| 1526 | case SAI_PROTOCOL_DATASIZE_16BIT:
|
---|
| 1527 | hsai->Init.DataSize = SAI_DATASIZE_16;
|
---|
| 1528 | hsai->FrameInit.FrameLength = 16 * nbslot;
|
---|
| 1529 | hsai->SlotInit.SlotSize = SAI_SLOTSIZE_16B;
|
---|
| 1530 | break;
|
---|
| 1531 | case SAI_PROTOCOL_DATASIZE_16BITEXTENDED :
|
---|
| 1532 | hsai->Init.DataSize = SAI_DATASIZE_16;
|
---|
| 1533 | hsai->FrameInit.FrameLength = 32 * nbslot;
|
---|
| 1534 | hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
|
---|
| 1535 | break;
|
---|
| 1536 |
|
---|
| 1537 | case SAI_PROTOCOL_DATASIZE_32BIT:
|
---|
| 1538 | hsai->Init.DataSize = SAI_DATASIZE_32;
|
---|
| 1539 | hsai->FrameInit.FrameLength = 32 * nbslot;
|
---|
| 1540 | hsai->SlotInit.SlotSize = SAI_SLOTSIZE_32B;
|
---|
| 1541 | break;
|
---|
| 1542 | default :
|
---|
| 1543 | return HAL_ERROR;
|
---|
| 1544 | }
|
---|
| 1545 |
|
---|
| 1546 | return HAL_OK;
|
---|
| 1547 | }
|
---|
| 1548 |
|
---|
| 1549 | /**
|
---|
| 1550 | * @brief Fill the fifo
|
---|
| 1551 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1552 | * the configuration information for SAI module.
|
---|
| 1553 | * @retval None.
|
---|
| 1554 | */
|
---|
| 1555 | static void SAI_FillFifo(SAI_HandleTypeDef *hsai)
|
---|
| 1556 | {
|
---|
| 1557 | /* fill the fifo with data before to enabled the SAI */
|
---|
| 1558 | while((hsai->Instance->SR & SAI_xSR_FLVL) != SAI_FIFOSTATUS_FULL)
|
---|
| 1559 | {
|
---|
| 1560 | if((hsai->Init.DataSize == SAI_DATASIZE_8) && (hsai->Init.CompandingMode == SAI_NOCOMPANDING))
|
---|
| 1561 | {
|
---|
| 1562 | hsai->Instance->DR = (*hsai->pBuffPtr++);
|
---|
| 1563 | }
|
---|
| 1564 | else if(hsai->Init.DataSize <= SAI_DATASIZE_16)
|
---|
| 1565 | {
|
---|
| 1566 | hsai->Instance->DR = *((uint32_t *)hsai->pBuffPtr);
|
---|
| 1567 | hsai->pBuffPtr+= 2;
|
---|
| 1568 | }
|
---|
| 1569 | else
|
---|
| 1570 | {
|
---|
| 1571 | hsai->Instance->DR = *((uint32_t *)hsai->pBuffPtr);
|
---|
| 1572 | hsai->pBuffPtr+= 4;
|
---|
| 1573 | }
|
---|
| 1574 | hsai->XferCount--;
|
---|
| 1575 | }
|
---|
| 1576 | }
|
---|
| 1577 |
|
---|
| 1578 | /**
|
---|
| 1579 | * @brief return the interrupt flag to set according the SAI setup
|
---|
| 1580 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1581 | * the configuration information for SAI module.
|
---|
| 1582 | * @param mode : SAI_MODE_DMA or SAI_MODE_IT
|
---|
| 1583 | * @retval the list of the IT flag to enable
|
---|
| 1584 | */
|
---|
| 1585 | static uint32_t SAI_InterruptFlag(SAI_HandleTypeDef *hsai, uint32_t mode)
|
---|
| 1586 | {
|
---|
| 1587 | uint32_t tmpIT = SAI_IT_OVRUDR;
|
---|
| 1588 |
|
---|
| 1589 | if(mode == SAI_MODE_IT)
|
---|
| 1590 | {
|
---|
| 1591 | tmpIT|= SAI_IT_FREQ;
|
---|
| 1592 | }
|
---|
| 1593 |
|
---|
| 1594 | if((hsai->Init.AudioMode == SAI_MODESLAVE_RX) || (hsai->Init.AudioMode == SAI_MODESLAVE_TX))
|
---|
| 1595 | {
|
---|
| 1596 | tmpIT|= SAI_IT_AFSDET | SAI_IT_LFSDET;
|
---|
| 1597 | }
|
---|
| 1598 | else
|
---|
| 1599 | {
|
---|
| 1600 | /* hsai has been configured in master mode */
|
---|
| 1601 | tmpIT|= SAI_IT_WCKCFG;
|
---|
| 1602 | }
|
---|
| 1603 | return tmpIT;
|
---|
| 1604 | }
|
---|
| 1605 |
|
---|
| 1606 | /**
|
---|
| 1607 | * @brief Disable the SAI and wait the disabling
|
---|
| 1608 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1609 | * the configuration information for SAI module.
|
---|
| 1610 | * @retval None.
|
---|
| 1611 | */
|
---|
| 1612 | static HAL_StatusTypeDef SAI_Disable(SAI_HandleTypeDef *hsai)
|
---|
| 1613 | {
|
---|
| 1614 | uint32_t tickstart = HAL_GetTick();
|
---|
| 1615 | HAL_StatusTypeDef status = HAL_OK;
|
---|
| 1616 |
|
---|
| 1617 | __HAL_SAI_DISABLE(hsai);
|
---|
| 1618 | while((hsai->Instance->CR1 & SAI_xCR1_SAIEN) != RESET)
|
---|
| 1619 | {
|
---|
| 1620 | /* Check for the Timeout */
|
---|
| 1621 | if((HAL_GetTick() - tickstart ) > SAI_TIMEOUT_VALUE)
|
---|
| 1622 | {
|
---|
| 1623 | /* Update error code */
|
---|
| 1624 | hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
|
---|
| 1625 |
|
---|
| 1626 | status = HAL_TIMEOUT;
|
---|
| 1627 |
|
---|
| 1628 | /* Change the SAI state */
|
---|
| 1629 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1630 | }
|
---|
| 1631 | }
|
---|
| 1632 | return status;
|
---|
| 1633 | }
|
---|
| 1634 |
|
---|
| 1635 | /**
|
---|
| 1636 | * @brief Tx Handler for Transmit in Interrupt mode 8Bit transfer
|
---|
| 1637 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1638 | * the configuration information for SAI module.
|
---|
| 1639 | * @retval None.
|
---|
| 1640 | */
|
---|
| 1641 | static void SAI_Transmit_IT8Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1642 | {
|
---|
| 1643 | /* Write data on DR register */
|
---|
| 1644 | hsai->Instance->DR = (*hsai->pBuffPtr++);
|
---|
| 1645 | hsai->XferCount--;
|
---|
| 1646 |
|
---|
| 1647 | /* Handle the end of the transmission */
|
---|
| 1648 | if(hsai->XferCount == 0)
|
---|
| 1649 | {
|
---|
| 1650 | /* Disable FREQ and OVRUDR interrupts */
|
---|
| 1651 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1652 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1653 | HAL_SAI_TxCpltCallback(hsai);
|
---|
| 1654 | }
|
---|
| 1655 | }
|
---|
| 1656 |
|
---|
| 1657 | /**
|
---|
| 1658 | * @brief Tx Handler for Transmit in Interrupt mode for 16Bit transfer
|
---|
| 1659 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1660 | * the configuration information for SAI module.
|
---|
| 1661 | * @retval None.
|
---|
| 1662 | */
|
---|
| 1663 | static void SAI_Transmit_IT16Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1664 | {
|
---|
| 1665 | /* Write data on DR register */
|
---|
| 1666 | hsai->Instance->DR = *(uint16_t *)hsai->pBuffPtr;
|
---|
| 1667 | hsai->pBuffPtr+=2;
|
---|
| 1668 | hsai->XferCount--;
|
---|
| 1669 |
|
---|
| 1670 | /* Handle the end of the transmission */
|
---|
| 1671 | if(hsai->XferCount == 0)
|
---|
| 1672 | {
|
---|
| 1673 | /* Disable FREQ and OVRUDR interrupts */
|
---|
| 1674 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1675 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1676 | HAL_SAI_TxCpltCallback(hsai);
|
---|
| 1677 | }
|
---|
| 1678 | }
|
---|
| 1679 |
|
---|
| 1680 | /**
|
---|
| 1681 | * @brief Tx Handler for Transmit in Interrupt mode for 32Bit transfer
|
---|
| 1682 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1683 | * the configuration information for SAI module.
|
---|
| 1684 | * @retval None.
|
---|
| 1685 | */
|
---|
| 1686 | static void SAI_Transmit_IT32Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1687 | {
|
---|
| 1688 | /* Write data on DR register */
|
---|
| 1689 | hsai->Instance->DR = *(uint32_t *)hsai->pBuffPtr;
|
---|
| 1690 | hsai->pBuffPtr+=4;
|
---|
| 1691 | hsai->XferCount--;
|
---|
| 1692 |
|
---|
| 1693 | /* Handle the end of the transmission */
|
---|
| 1694 | if(hsai->XferCount == 0)
|
---|
| 1695 | {
|
---|
| 1696 | /* Disable FREQ and OVRUDR interrupts */
|
---|
| 1697 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1698 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1699 | HAL_SAI_TxCpltCallback(hsai);
|
---|
| 1700 | }
|
---|
| 1701 | }
|
---|
| 1702 |
|
---|
| 1703 | /**
|
---|
| 1704 | * @brief Rx Handler for Receive in Interrupt mode 8Bit transfer
|
---|
| 1705 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1706 | * the configuration information for SAI module.
|
---|
| 1707 | * @retval None.
|
---|
| 1708 | */
|
---|
| 1709 | static void SAI_Receive_IT8Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1710 | {
|
---|
| 1711 | /* Receive data */
|
---|
| 1712 | (*hsai->pBuffPtr++) = hsai->Instance->DR;
|
---|
| 1713 | hsai->XferCount--;
|
---|
| 1714 |
|
---|
| 1715 | /* Check end of the transfer */
|
---|
| 1716 | if(hsai->XferCount == 0)
|
---|
| 1717 | {
|
---|
| 1718 | /* Disable TXE and OVRUDR interrupts */
|
---|
| 1719 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1720 |
|
---|
| 1721 | /* Clear the SAI Overrun flag */
|
---|
| 1722 | __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
|
---|
| 1723 |
|
---|
| 1724 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1725 | HAL_SAI_RxCpltCallback(hsai);
|
---|
| 1726 | }
|
---|
| 1727 | }
|
---|
| 1728 |
|
---|
| 1729 | /**
|
---|
| 1730 | * @brief Rx Handler for Receive in Interrupt mode for 16Bit transfer
|
---|
| 1731 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1732 | * the configuration information for SAI module.
|
---|
| 1733 | * @retval None.
|
---|
| 1734 | */
|
---|
| 1735 | static void SAI_Receive_IT16Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1736 | {
|
---|
| 1737 | /* Receive data */
|
---|
| 1738 | *(uint16_t*)hsai->pBuffPtr = hsai->Instance->DR;
|
---|
| 1739 | hsai->pBuffPtr+=2;
|
---|
| 1740 | hsai->XferCount--;
|
---|
| 1741 |
|
---|
| 1742 | /* Check end of the transfer */
|
---|
| 1743 | if(hsai->XferCount == 0)
|
---|
| 1744 | {
|
---|
| 1745 | /* Disable TXE and OVRUDR interrupts */
|
---|
| 1746 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1747 |
|
---|
| 1748 | /* Clear the SAI Overrun flag */
|
---|
| 1749 | __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
|
---|
| 1750 |
|
---|
| 1751 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1752 | HAL_SAI_RxCpltCallback(hsai);
|
---|
| 1753 | }
|
---|
| 1754 | }
|
---|
| 1755 | /**
|
---|
| 1756 | * @brief Rx Handler for Receive in Interrupt mode for 32Bit transfer
|
---|
| 1757 | * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
|
---|
| 1758 | * the configuration information for SAI module.
|
---|
| 1759 | * @retval None.
|
---|
| 1760 | */
|
---|
| 1761 | static void SAI_Receive_IT32Bit(SAI_HandleTypeDef *hsai)
|
---|
| 1762 | {
|
---|
| 1763 | /* Receive data */
|
---|
| 1764 | *(uint32_t*)hsai->pBuffPtr = hsai->Instance->DR;
|
---|
| 1765 | hsai->pBuffPtr+=4;
|
---|
| 1766 | hsai->XferCount--;
|
---|
| 1767 |
|
---|
| 1768 | /* Check end of the transfer */
|
---|
| 1769 | if(hsai->XferCount == 0)
|
---|
| 1770 | {
|
---|
| 1771 | /* Disable TXE and OVRUDR interrupts */
|
---|
| 1772 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_IT));
|
---|
| 1773 |
|
---|
| 1774 | /* Clear the SAI Overrun flag */
|
---|
| 1775 | __HAL_SAI_CLEAR_FLAG(hsai, SAI_FLAG_OVRUDR);
|
---|
| 1776 |
|
---|
| 1777 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1778 | HAL_SAI_RxCpltCallback(hsai);
|
---|
| 1779 | }
|
---|
| 1780 | }
|
---|
| 1781 |
|
---|
| 1782 | /**
|
---|
| 1783 | * @brief DMA SAI transmit process complete callback.
|
---|
| 1784 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
---|
| 1785 | * the configuration information for the specified DMA module.
|
---|
| 1786 | * @retval None
|
---|
| 1787 | */
|
---|
| 1788 | static void SAI_DMATxCplt(DMA_HandleTypeDef *hdma)
|
---|
| 1789 | {
|
---|
| 1790 | uint32_t tickstart = 0;
|
---|
| 1791 |
|
---|
| 1792 | SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef* )hdma)->Parent;
|
---|
| 1793 |
|
---|
| 1794 | if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
|
---|
| 1795 | {
|
---|
| 1796 | hsai->XferCount = 0;
|
---|
| 1797 |
|
---|
| 1798 | /* Disable SAI Tx DMA Request */
|
---|
| 1799 | hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
|
---|
| 1800 |
|
---|
| 1801 | /* Get tick */
|
---|
| 1802 | tickstart = HAL_GetTick();
|
---|
| 1803 |
|
---|
| 1804 | /* Set timeout: 10 is the max delay to send the remaining data in the SAI FIFO */
|
---|
| 1805 | /* Wait until FIFO is empty */
|
---|
| 1806 | while(__HAL_SAI_GET_FLAG(hsai, SAI_xSR_FLVL) != RESET)
|
---|
| 1807 | {
|
---|
| 1808 | /* Check for the Timeout */
|
---|
| 1809 | if((HAL_GetTick() - tickstart ) > SAI_TIMEOUT_VALUE)
|
---|
| 1810 | {
|
---|
| 1811 | /* Update error code */
|
---|
| 1812 | hsai->ErrorCode |= HAL_SAI_ERROR_TIMEOUT;
|
---|
| 1813 |
|
---|
| 1814 | /* Change the SAI state */
|
---|
| 1815 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1816 | }
|
---|
| 1817 | }
|
---|
| 1818 |
|
---|
| 1819 | /* Stop the interrupts error handling */
|
---|
| 1820 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
|
---|
| 1821 |
|
---|
| 1822 | hsai->State= HAL_SAI_STATE_READY;
|
---|
| 1823 | }
|
---|
| 1824 | HAL_SAI_TxCpltCallback(hsai);
|
---|
| 1825 | }
|
---|
| 1826 |
|
---|
| 1827 | /**
|
---|
| 1828 | * @brief DMA SAI transmit process half complete callback
|
---|
| 1829 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
---|
| 1830 | * the configuration information for the specified DMA module.
|
---|
| 1831 | * @retval None
|
---|
| 1832 | */
|
---|
| 1833 | static void SAI_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
|
---|
| 1834 | {
|
---|
| 1835 | SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
|
---|
| 1836 |
|
---|
| 1837 | HAL_SAI_TxHalfCpltCallback(hsai);
|
---|
| 1838 | }
|
---|
| 1839 |
|
---|
| 1840 | /**
|
---|
| 1841 | * @brief DMA SAI receive process complete callback.
|
---|
| 1842 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
---|
| 1843 | * the configuration information for the specified DMA module.
|
---|
| 1844 | * @retval None
|
---|
| 1845 | */
|
---|
| 1846 | static void SAI_DMARxCplt(DMA_HandleTypeDef *hdma)
|
---|
| 1847 | {
|
---|
| 1848 | SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
---|
| 1849 | if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
|
---|
| 1850 | {
|
---|
| 1851 | /* Disable Rx DMA Request */
|
---|
| 1852 | hsai->Instance->CR1 &= (uint32_t)(~SAI_xCR1_DMAEN);
|
---|
| 1853 | hsai->XferCount = 0;
|
---|
| 1854 |
|
---|
| 1855 | /* Stop the interrupts error handling */
|
---|
| 1856 | __HAL_SAI_DISABLE_IT(hsai, SAI_InterruptFlag(hsai, SAI_MODE_DMA));
|
---|
| 1857 |
|
---|
| 1858 | hsai->State = HAL_SAI_STATE_READY;
|
---|
| 1859 | }
|
---|
| 1860 | HAL_SAI_RxCpltCallback(hsai);
|
---|
| 1861 | }
|
---|
| 1862 |
|
---|
| 1863 | /**
|
---|
| 1864 | * @brief DMA SAI receive process half complete callback
|
---|
| 1865 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
---|
| 1866 | * the configuration information for the specified DMA module.
|
---|
| 1867 | * @retval None
|
---|
| 1868 | */
|
---|
| 1869 | static void SAI_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
|
---|
| 1870 | {
|
---|
| 1871 | SAI_HandleTypeDef* hsai = (SAI_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
|
---|
| 1872 |
|
---|
| 1873 | HAL_SAI_RxHalfCpltCallback(hsai);
|
---|
| 1874 | }
|
---|
| 1875 | /**
|
---|
| 1876 | * @brief DMA SAI communication error callback.
|
---|
| 1877 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
---|
| 1878 | * the configuration information for the specified DMA module.
|
---|
| 1879 | * @retval None
|
---|
| 1880 | */
|
---|
| 1881 | static void SAI_DMAError(DMA_HandleTypeDef *hdma)
|
---|
| 1882 | {
|
---|
| 1883 | SAI_HandleTypeDef* hsai = ( SAI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
---|
| 1884 |
|
---|
| 1885 | /* Stop the DMA transfer */
|
---|
| 1886 | HAL_SAI_DMAStop(hsai);
|
---|
| 1887 |
|
---|
| 1888 | /* Set the SAI state ready to be able to start again the process */
|
---|
| 1889 | hsai->State= HAL_SAI_STATE_READY;
|
---|
| 1890 | HAL_SAI_ErrorCallback(hsai);
|
---|
| 1891 |
|
---|
| 1892 | hsai->XferCount = 0;
|
---|
| 1893 | }
|
---|
| 1894 |
|
---|
| 1895 | /**
|
---|
| 1896 | * @}
|
---|
| 1897 | */
|
---|
| 1898 |
|
---|
| 1899 | #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
|
---|
| 1900 | #endif /* HAL_SAI_MODULE_ENABLED */
|
---|
| 1901 | /**
|
---|
| 1902 | * @}
|
---|
| 1903 | */
|
---|
| 1904 |
|
---|
| 1905 | /**
|
---|
| 1906 | * @}
|
---|
| 1907 | */
|
---|
| 1908 |
|
---|
| 1909 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
---|