/**
  ******************************************************************************
  * File Name          : SAI.c
  * Description        : This file provides code for the configuration
  *                      of the SAI instances.
  ******************************************************************************
  ** This notice applies to any and all portions of this file
  * that are not between comment pairs USER CODE BEGIN and
  * USER CODE END. Other portions of this file, whether 
  * inserted by the user or by software development tools
  * are owned by their respective copyright owners.
  *
  * COPYRIGHT(c) 2018 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "sai.h"


/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

SAI_HandleTypeDef hsai_BlockA2;

/* SAI2 init function */
void MX_SAI2_Init(void)
{

  hsai_BlockA2.Instance = SAI2_Block_A;
  hsai_BlockA2.Init.AudioMode = SAI_MODEMASTER_TX;
  hsai_BlockA2.Init.Synchro = SAI_ASYNCHRONOUS;
  hsai_BlockA2.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLE;
  hsai_BlockA2.Init.NoDivider = SAI_MASTERDIVIDER_ENABLE;
  hsai_BlockA2.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_EMPTY;
  hsai_BlockA2.Init.AudioFrequency = SAI_AUDIO_FREQUENCY_8K;
  hsai_BlockA2.Init.SynchroExt = SAI_SYNCEXT_DISABLE;
  hsai_BlockA2.Init.MonoStereoMode = SAI_STEREOMODE;
  hsai_BlockA2.Init.CompandingMode = SAI_NOCOMPANDING;
  hsai_BlockA2.Init.TriState = SAI_OUTPUT_NOTRELEASED;
  if (HAL_SAI_InitProtocol(&hsai_BlockA2, SAI_I2S_STANDARD, SAI_PROTOCOL_DATASIZE_16BIT, 2) != HAL_OK)
  {
   for(;;){}
  }

}
static uint32_t SAI2_client =0;

void HAL_SAI_MspInit(SAI_HandleTypeDef* hsai)
{

  GPIO_InitTypeDef GPIO_InitStruct;
/* SAI2 */
    if(hsai->Instance==SAI2_Block_A)
    {
    /* SAI2 clock enable */
    if (SAI2_client == 0)
    {
       __HAL_RCC_SAI2_CLK_ENABLE();
    }
    SAI2_client ++;
    
    /**SAI2_A_Block_A GPIO Configuration    
    PE0     ------> SAI2_MCLK_A
    PI5     ------> SAI2_SCK_A
    PI7     ------> SAI2_FS_A
    PI6     ------> SAI2_SD_A 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_0;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF10_SAI2;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_7|GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF10_SAI2;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);

    }
}

void HAL_SAI_MspDeInit(SAI_HandleTypeDef* hsai)
{

/* SAI2 */
    if(hsai->Instance==SAI2_Block_A)
    {
    SAI2_client --;
    if (SAI2_client == 0)
      {
      /* Peripheral clock disable */ 
       __HAL_RCC_SAI2_CLK_DISABLE();
      }
    
    /**SAI2_A_Block_A GPIO Configuration    
    PE0     ------> SAI2_MCLK_A
    PI5     ------> SAI2_SCK_A
    PI7     ------> SAI2_FS_A
    PI6     ------> SAI2_SD_A 
    */
    HAL_GPIO_DeInit(GPIOE, GPIO_PIN_0);

    HAL_GPIO_DeInit(GPIOI, GPIO_PIN_5|GPIO_PIN_7|GPIO_PIN_6);

    }
}

/**
  * @}
  */

/**
  * @}
  */

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