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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_i2s_ex.c
- Revision:
- 384:ef87175507f1
- Parent:
- 383:0564d9840d0d
- Child:
- 385:be64abf45658
--- a/targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_i2s_ex.c Mon Nov 03 11:00:07 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,752 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32f4xx_hal_i2s_ex.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 19-June-2014
- * @brief I2S HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of I2S extension peripheral:
- * + Extension features Functions
- *
- @verbatim
- ==============================================================================
- ##### I2S Extension features #####
- ==============================================================================
- [..]
- (#) In I2S full duplex mode, each SPI peripheral is able to manage sending and receiving
- data simultaneously using two data lines. Each SPI peripheral has an extended block
- called I2Sxext (i.e I2S2ext for SPI2 and I2S3ext for SPI3).
- (#) The extension block is not a full SPI IP, it is used only as I2S slave to
- implement full duplex mode. The extension block uses the same clock sources
- as its master.
-
- (#) Both I2Sx and I2Sx_ext can be configured as transmitters or receivers.
-
- [..]
- (@) Only I2Sx can deliver SCK and WS to I2Sx_ext in full duplex mode, where
- I2Sx can be I2S2 or I2S3.
-
- ##### How to use this driver #####
- ===============================================================================
- [..]
- Three operation modes are available within this driver :
-
- *** Polling mode IO operation ***
- =================================
- [..]
- (+) Send and receive in the same time an amount of data in blocking mode using HAL_I2S_TransmitReceive()
-
- *** Interrupt mode IO operation ***
- ===================================
- [..]
- (+) Send and receive in the same time an amount of data in non blocking mode using HAL_I2S_TransmitReceive_IT()
- (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxCpltCallback
- (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
- (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxCpltCallback
- (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_I2S_ErrorCallback
-
- *** DMA mode IO operation ***
- ==============================
- [..]
- (+) Send and receive an amount of data in non blocking mode (DMA) using HAL_I2S_TransmitReceive_DMA()
- (+) At transmission end of half transfer HAL_I2S_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_I2S_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_TxCpltCallback
- (+) At reception end of half transfer HAL_I2S_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxHalfCpltCallback
- (+) At reception end of transfer HAL_I2S_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_I2S_RxCpltCallback
- (+) In case of transfer Error, HAL_I2S_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_I2S_ErrorCallback
- (+) Pause the DMA Transfer using HAL_I2S_DMAPause()
- (+) Resume the DMA Transfer using HAL_I2S_DMAResume()
- (+) Stop the DMA Transfer using HAL_I2S_DMAStop()
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * 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 "stm32f4xx_hal.h"
-
-/** @addtogroup STM32F4xx_HAL_Driver
- * @{
- */
-
-/** @defgroup I2SEx
- * @brief I2S HAL module driver
- * @{
- */
-
-#ifdef HAL_I2S_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup I2SEx_Private_Functions
- * @{
- */
-
-/** @defgroup I2SEx_Group1 Extension features functions
- * @brief Extension features functions
- *
-@verbatim
- ===============================================================================
- ##### Extension features Functions #####
- ===============================================================================
- [..]
- This subsection provides a set of functions allowing to manage the I2S data
- transfers.
-
- (#) There are two modes of transfer:
- (++) Blocking mode : The communication is performed in the polling mode.
- The status of all data processing is returned by the same function
- after finishing transfer.
- (++) No-Blocking mode : The communication is performed using Interrupts
- or DMA. These functions return the status of the transfer startup.
- The end of the data processing will be indicated through the
- dedicated I2S IRQ when using Interrupt mode or the DMA IRQ when
- using DMA mode.
-
- (#) Blocking mode functions are :
- (++) HAL_I2S_TransmitReceive()
-
- (#) No-Blocking mode functions with Interrupt are :
- (++) HAL_I2S_TransmitReceive_IT()
-
- (#) No-Blocking mode functions with DMA are :
- (++) HAL_I2S_TransmitReceive_DMA()
-
- (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
- (++) HAL_I2S_TxCpltCallback()
- (++) HAL_I2S_RxCpltCallback()
- (++) HAL_I2S_ErrorCallback()
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Full-Duplex Transmit/Receive data in blocking mode.
- * @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pTxData: a 16-bit pointer to the Transmit data buffer.
- * @param pRxData: a 16-bit pointer to the Receive data buffer.
- * @param Size: number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @param Timeout: Timeout duration
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2SEx_TransmitReceive(I2S_HandleTypeDef *hi2s, uint16_t *pTxData, uint16_t *pRxData, uint16_t Size, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
- uint32_t tmp1 = 0, tmp2 = 0;
-
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the I2S State */
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- tmp1 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- tmp2 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- /* Check the Data format: When a 16-bit data frame or a 16-bit data frame extended
- is selected during the I2S configuration phase, the Size parameter means the number
- of 16-bit data length in the transaction and when a 24-bit data frame or a 32-bit data
- frame is selected the Size parameter means the number of 16-bit data length. */
- if((tmp1 == I2S_DATAFORMAT_24B)|| \
- (tmp2 == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = Size*2;
- hi2s->TxXferCount = Size*2;
- hi2s->RxXferSize = Size*2;
- hi2s->RxXferCount = Size*2;
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- /* Set the I2S State busy TX/RX */
- hi2s->State = HAL_I2S_STATE_BUSY_TX_RX;
-
- tmp1 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- tmp2 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- /* Check if the I2S_MODE_MASTER_TX or I2S_MODE_SLAVE_TX Mode is selected */
- if((tmp1 == I2S_MODE_MASTER_TX) || (tmp2 == I2S_MODE_SLAVE_TX))
- {
- /* Check if the I2S is already enabled: The I2S is kept enabled at the end of transaction
- to avoid the clock de-synchronization between Master and Slave. */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2Sext(receiver) before enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
-
- /* Enable I2Sx peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
-
- while(hi2s->TxXferCount > 0)
- {
- /* Wait until TXE flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- hi2s->Instance->DR = (*pTxData++);
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until RXNE flag is set */
- while((I2SxEXT(hi2s->Instance)->SR & SPI_SR_RXNE) != SPI_SR_RXNE)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_TIMEOUT;
- }
- }
- }
- (*pRxData++) = I2SxEXT(hi2s->Instance)->DR;
-
- hi2s->TxXferCount--;
- hi2s->RxXferCount--;
- }
- }
- /* The I2S_MODE_MASTER_RX or I2S_MODE_SLAVE_RX Mode is selected */
- else
- {
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral before the I2Sext*/
- __HAL_I2S_ENABLE(hi2s);
-
- /* Enable I2Sext(transmitter) after enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
- }
- else
- {
- /* Check if Master Receiver mode is selected */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
- {
- /* Clear the Overrun Flag by a read operation on the SPI_DR register followed by a read
- access to the SPI_SR register. */
- __HAL_I2S_CLEAR_OVRFLAG(hi2s);
- }
- }
- while(hi2s->TxXferCount > 0)
- {
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until TXE flag is set */
- while((I2SxEXT(hi2s->Instance)->SR & SPI_SR_TXE) != SPI_SR_TXE)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_TIMEOUT;
- }
- }
- }
- I2SxEXT(hi2s->Instance)->DR = (*pTxData++);
-
- /* Wait until RXNE flag is set */
- if (I2S_WaitFlagStateUntilTimeout(hi2s, I2S_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- (*pRxData++) = hi2s->Instance->DR;
-
- hi2s->TxXferCount--;
- hi2s->RxXferCount--;
- }
- }
-
- /* Set the I2S State ready */
- hi2s->State = HAL_I2S_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Transmit/Receive data in non-blocking mode using Interrupt
- * @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pTxData: a 16-bit pointer to the Transmit data buffer.
- * @param pRxData: a 16-bit pointer to the Receive data buffer.
- * @param Size: number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2SEx_TransmitReceive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pTxData, uint16_t *pRxData, uint16_t Size)
-{
- uint32_t tmp1 = 0, tmp2 = 0;
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- hi2s->pTxBuffPtr = pTxData;
- hi2s->pRxBuffPtr = pRxData;
-
- tmp1 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- tmp2 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- /* Check the Data format: When a 16-bit data frame or a 16-bit data frame extended
- is selected during the I2S configuration phase, the Size parameter means the number
- of 16-bit data length in the transaction and when a 24-bit data frame or a 32-bit data
- frame is selected the Size parameter means the number of 16-bit data length. */
- if((tmp1 == I2S_DATAFORMAT_24B)||\
- (tmp2 == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = Size*2;
- hi2s->TxXferCount = Size*2;
- hi2s->RxXferSize = Size*2;
- hi2s->RxXferCount = Size*2;
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- hi2s->State = HAL_I2S_STATE_BUSY_TX_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- tmp1 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- tmp2 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- /* Check if the I2S_MODE_MASTER_TX or I2S_MODE_SLAVE_TX Mode is selected */
- if((tmp1 == I2S_MODE_MASTER_TX) || (tmp2 == I2S_MODE_SLAVE_TX))
- {
- /* Enable I2Sext RXNE and ERR interrupts */
- I2SxEXT(hi2s->Instance)->CR2 |= (I2S_IT_RXNE | I2S_IT_ERR);
-
- /* Enable I2Sx TXE and ERR interrupts */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2Sext(receiver) before enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
-
- /* Enable I2Sx peripheral */
- __HAL_I2S_ENABLE(hi2s);
- }
- }
- /* The I2S_MODE_MASTER_RX or I2S_MODE_SLAVE_RX Mode is selected */
- else
- {
- /* Enable I2Sext TXE and ERR interrupts */
- I2SxEXT(hi2s->Instance)->CR2 |= (I2S_IT_TXE |I2S_IT_ERR);
-
- /* Enable I2Sext RXNE and ERR interrupts */
- __HAL_I2S_ENABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR));
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Check if the I2S_MODE_MASTER_RX is selected */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
- {
- /* Prepare the First Data before enabling the I2S */
- if(hi2s->TxXferCount != 0)
- {
- /* Transmit First data */
- I2SxEXT(hi2s->Instance)->DR = (*hi2s->pTxBuffPtr++);
- hi2s->TxXferCount--;
-
- if(hi2s->TxXferCount == 0)
- {
- /* Disable I2Sext TXE interrupt */
- I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_TXE;
- }
- }
- }
- /* Enable I2S peripheral */
- __HAL_I2S_ENABLE(hi2s);
-
- /* Enable I2Sext(transmitter) after enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
- }
- }
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-
-/**
- * @brief Full-Duplex Transmit/Receive data in non-blocking mode using DMA
- * @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @param pTxData: a 16-bit pointer to the Transmit data buffer.
- * @param pRxData: a 16-bit pointer to the Receive data buffer.
- * @param Size: number of data sample to be sent:
- * @note When a 16-bit data frame or a 16-bit data frame extended is selected during the I2S
- * configuration phase, the Size parameter means the number of 16-bit data length
- * in the transaction and when a 24-bit data frame or a 32-bit data frame is selected
- * the Size parameter means the number of 16-bit data length.
- * @note The I2S is kept enabled at the end of transaction to avoid the clock de-synchronization
- * between Master and Slave(example: audio streaming).
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_I2SEx_TransmitReceive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pTxData, uint16_t *pRxData, uint16_t Size)
-{
- uint32_t *tmp;
- uint32_t tmp1 = 0, tmp2 = 0;
-
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- if(hi2s->State == HAL_I2S_STATE_READY)
- {
- hi2s->pTxBuffPtr = pTxData;
- hi2s->pRxBuffPtr = pRxData;
-
- tmp1 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- tmp2 = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN);
- /* Check the Data format: When a 16-bit data frame or a 16-bit data frame extended
- is selected during the I2S configuration phase, the Size parameter means the number
- of 16-bit data length in the transaction and when a 24-bit data frame or a 32-bit data
- frame is selected the Size parameter means the number of 16-bit data length. */
- if((tmp1 == I2S_DATAFORMAT_24B)||\
- (tmp2 == I2S_DATAFORMAT_32B))
- {
- hi2s->TxXferSize = Size*2;
- hi2s->TxXferCount = Size*2;
- hi2s->RxXferSize = Size*2;
- hi2s->RxXferCount = Size*2;
- }
- else
- {
- hi2s->TxXferSize = Size;
- hi2s->TxXferCount = Size;
- hi2s->RxXferSize = Size;
- hi2s->RxXferCount = Size;
- }
-
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- hi2s->State = HAL_I2S_STATE_BUSY_TX_RX;
- hi2s->ErrorCode = HAL_I2S_ERROR_NONE;
-
- /* Set the I2S Rx DMA Half transfert complete callback */
- hi2s->hdmarx->XferHalfCpltCallback = I2S_DMARxHalfCplt;
-
- /* Set the I2S Rx DMA transfert complete callback */
- hi2s->hdmarx->XferCpltCallback = I2S_DMARxCplt;
-
- /* Set the I2S Rx DMA error callback */
- hi2s->hdmarx->XferErrorCallback = I2S_DMAError;
-
- /* Set the I2S Tx DMA Half transfert complete callback */
- hi2s->hdmatx->XferHalfCpltCallback = I2S_DMATxHalfCplt;
-
- /* Set the I2S Tx DMA transfert complete callback */
- hi2s->hdmatx->XferCpltCallback = I2S_DMATxCplt;
-
- /* Set the I2S Tx DMA error callback */
- hi2s->hdmatx->XferErrorCallback = I2S_DMAError;
-
- tmp1 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- tmp2 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- /* Check if the I2S_MODE_MASTER_TX or I2S_MODE_SLAVE_TX Mode is selected */
- if((tmp1 == I2S_MODE_MASTER_TX) || (tmp2 == I2S_MODE_SLAVE_TX))
- {
- /* Enable the Rx DMA Stream */
- tmp = (uint32_t*)&pRxData;
- HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&I2SxEXT(hi2s->Instance)->DR, *(uint32_t*)tmp, hi2s->RxXferSize);
-
- /* Enable Rx DMA Request */
- I2SxEXT(hi2s->Instance)->CR2 |= SPI_CR2_RXDMAEN;
-
- /* Enable the Tx DMA Stream */
- tmp = (uint32_t*)&pTxData;
- HAL_DMA_Start_IT(hi2s->hdmatx, *(uint32_t*)tmp, (uint32_t)&hi2s->Instance->DR, hi2s->TxXferSize);
-
- /* Enable Tx DMA Request */
- hi2s->Instance->CR2 |= SPI_CR2_TXDMAEN;
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2Sext(receiver) before enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
-
- /* Enable I2S peripheral after the I2Sext */
- __HAL_I2S_ENABLE(hi2s);
- }
- }
- else
- {
- /* Enable the Tx DMA Stream */
- tmp = (uint32_t*)&pTxData;
- HAL_DMA_Start_IT(hi2s->hdmatx, *(uint32_t*)tmp, (uint32_t)&I2SxEXT(hi2s->Instance)->DR, hi2s->TxXferSize);
-
- /* Enable Tx DMA Request */
- I2SxEXT(hi2s->Instance)->CR2 |= SPI_CR2_TXDMAEN;
-
- /* Enable the Rx DMA Stream */
- tmp = (uint32_t*)&pRxData;
- HAL_DMA_Start_IT(hi2s->hdmarx, (uint32_t)&hi2s->Instance->DR, *(uint32_t*)tmp, hi2s->RxXferSize);
-
- /* Enable Rx DMA Request */
- hi2s->Instance->CR2 |= SPI_CR2_RXDMAEN;
-
- /* Check if the I2S is already enabled */
- if((hi2s->Instance->I2SCFGR &SPI_I2SCFGR_I2SE) != SPI_I2SCFGR_I2SE)
- {
- /* Enable I2S peripheral before the I2Sext */
- __HAL_I2S_ENABLE(hi2s);
-
- /* Enable I2Sext(transmitter) after enabling I2Sx peripheral */
- I2SxEXT(hi2s->Instance)->I2SCFGR |= SPI_I2SCFGR_I2SE;
- }
- else
- {
- /* Check if Master Receiver mode is selected */
- if((hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG) == I2S_MODE_MASTER_RX)
- {
- /* Clear the Overrun Flag by a read operation on the SPI_DR register followed by a read
- access to the SPI_SR register. */
- __HAL_I2S_CLEAR_OVRFLAG(hi2s);
- }
- }
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @}
- */
-
-/**
- * @brief Full-Duplex Transmit/Receive data in non-blocking mode using Interrupt
- * @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
- * the configuration information for I2S module
- * @retval HAL status
- */
-HAL_StatusTypeDef I2SEx_TransmitReceive_IT(I2S_HandleTypeDef *hi2s)
-{
- uint32_t tmp1 = 0, tmp2 = 0;
-
- if(hi2s->State == HAL_I2S_STATE_BUSY_TX_RX)
- {
- /* Process Locked */
- __HAL_LOCK(hi2s);
-
- tmp1 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- tmp2 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
- /* Check if the I2S_MODE_MASTER_TX or I2S_MODE_SLAVE_TX Mode is selected */
- if((tmp1 == I2S_MODE_MASTER_TX) || (tmp2 == I2S_MODE_SLAVE_TX))
- {
- if(hi2s->TxXferCount != 0)
- {
- if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_TXE) != RESET)
- {
- /* Transmit data */
- hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
- hi2s->TxXferCount--;
-
- if(hi2s->TxXferCount == 0)
- {
- /* Disable TXE interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, I2S_IT_TXE);
- }
- }
- }
-
- if(hi2s->RxXferCount != 0)
- {
- if((I2SxEXT(hi2s->Instance)->SR & SPI_SR_RXNE) == SPI_SR_RXNE)
- {
- /* Receive data */
- (*hi2s->pRxBuffPtr++) = I2SxEXT(hi2s->Instance)->DR;
- hi2s->RxXferCount--;
-
- if(hi2s->RxXferCount == 0)
- {
- /* Disable I2Sext RXNE interrupt */
- I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_RXNE;
- }
- }
- }
- }
- /* The I2S_MODE_MASTER_RX or I2S_MODE_SLAVE_RX Mode is selected */
- else
- {
- if(hi2s->TxXferCount != 0)
- {
- if((I2SxEXT(hi2s->Instance)->SR & SPI_SR_TXE) == SPI_SR_TXE)
- {
- /* Transmit data */
- I2SxEXT(hi2s->Instance)->DR = (*hi2s->pTxBuffPtr++);
- hi2s->TxXferCount--;
-
- if(hi2s->TxXferCount == 0)
- {
- /* Disable I2Sext TXE interrupt */
- I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_TXE;
-
- HAL_I2S_TxCpltCallback(hi2s);
- }
- }
- }
- if(hi2s->RxXferCount != 0)
- {
- if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_RXNE) != RESET)
- {
- /* Receive data */
- (*hi2s->pRxBuffPtr++) = hi2s->Instance->DR;
- hi2s->RxXferCount--;
-
- if(hi2s->RxXferCount == 0)
- {
- /* Disable RXNE interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, I2S_IT_RXNE);
-
- HAL_I2S_RxCpltCallback(hi2s);
- }
- }
- }
- }
-
- tmp1 = hi2s->RxXferCount;
- tmp2 = hi2s->TxXferCount;
- if((tmp1 == 0) && (tmp2 == 0))
- {
- /* Disable I2Sx ERR interrupt */
- __HAL_I2S_DISABLE_IT(hi2s, I2S_IT_ERR);
- /* Disable I2Sext ERR interrupt */
- I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_ERR;
-
- hi2s->State = HAL_I2S_STATE_READY;
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hi2s);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @}
- */
-
-#endif /* HAL_I2S_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
