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 */
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379 | if(hsai->Init.AudioFrequency != SAI_AUDIO_FREQUENCY_MCKDIV)
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380 | {
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381 | /* Get SAI clock source based on Source clock selection from RCC */
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382 | freq = SAI_GetInputClock(hsai);
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383 |
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384 | /* (saiclocksource x 10) to keep Significant digits */
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385 | tmpclock = (((freq * 10) / ((hsai->Init.AudioFrequency) * 512)));
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386 |
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387 | hsai->Init.Mckdiv = tmpclock / 10;
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388 |
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389 | /* Round result to the nearest integer */
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390 | if((tmpclock % 10) > 8)
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391 | {
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392 | hsai->Init.Mckdiv+= 1;
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393 | }
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394 | }
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395 |
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396 | /* SAI Block Configuration ------------------------------------------------------------*/
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397 | /* SAI CR1 Configuration */
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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****/
|
---|