| /** |
| ****************************************************************************** |
| * @file stm32l0xx_hal_i2s.h |
| * @author MCD Application Team |
| * @brief Header file of I2S HAL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 STMicroelectronics. |
| * All rights reserved. |
| * |
| * This software is licensed under terms that can be found in the LICENSE file |
| * in the root directory of this software component. |
| * If no LICENSE file comes with this software, it is provided AS-IS. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef STM32L0xx_HAL_I2S_H |
| #define STM32L0xx_HAL_I2S_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal_def.h" |
| |
| #if defined(SPI_I2S_SUPPORT) |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @addtogroup I2S |
| * @{ |
| */ |
| |
| /* Exported types ------------------------------------------------------------*/ |
| /** @defgroup I2S_Exported_Types I2S Exported Types |
| * @{ |
| */ |
| |
| /** |
| * @brief I2S Init structure definition |
| */ |
| typedef struct |
| { |
| uint32_t Mode; /*!< Specifies the I2S operating mode. |
| This parameter can be a value of @ref I2S_Mode */ |
| |
| uint32_t Standard; /*!< Specifies the standard used for the I2S communication. |
| This parameter can be a value of @ref I2S_Standard */ |
| |
| uint32_t DataFormat; /*!< Specifies the data format for the I2S communication. |
| This parameter can be a value of @ref I2S_Data_Format */ |
| |
| uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not. |
| This parameter can be a value of @ref I2S_MCLK_Output */ |
| |
| uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication. |
| This parameter can be a value of @ref I2S_Audio_Frequency */ |
| |
| uint32_t CPOL; /*!< Specifies the idle state of the I2S clock. |
| This parameter can be a value of @ref I2S_Clock_Polarity */ |
| } I2S_InitTypeDef; |
| |
| /** |
| * @brief HAL State structures definition |
| */ |
| typedef enum |
| { |
| HAL_I2S_STATE_RESET = 0x00U, /*!< I2S not yet initialized or disabled */ |
| HAL_I2S_STATE_READY = 0x01U, /*!< I2S initialized and ready for use */ |
| HAL_I2S_STATE_BUSY = 0x02U, /*!< I2S internal process is ongoing */ |
| HAL_I2S_STATE_BUSY_TX = 0x03U, /*!< Data Transmission process is ongoing */ |
| HAL_I2S_STATE_BUSY_RX = 0x04U, /*!< Data Reception process is ongoing */ |
| HAL_I2S_STATE_TIMEOUT = 0x06U, /*!< I2S timeout state */ |
| HAL_I2S_STATE_ERROR = 0x07U /*!< I2S error state */ |
| } HAL_I2S_StateTypeDef; |
| |
| /** |
| * @brief I2S handle Structure definition |
| */ |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1) |
| typedef struct __I2S_HandleTypeDef |
| #else |
| typedef struct |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| { |
| SPI_TypeDef *Instance; /*!< I2S registers base address */ |
| |
| I2S_InitTypeDef Init; /*!< I2S communication parameters */ |
| |
| uint16_t *pTxBuffPtr; /*!< Pointer to I2S Tx transfer buffer */ |
| |
| __IO uint16_t TxXferSize; /*!< I2S Tx transfer size */ |
| |
| __IO uint16_t TxXferCount; /*!< I2S Tx transfer Counter */ |
| |
| uint16_t *pRxBuffPtr; /*!< Pointer to I2S Rx transfer buffer */ |
| |
| __IO uint16_t RxXferSize; /*!< I2S Rx transfer size */ |
| |
| __IO uint16_t RxXferCount; /*!< I2S Rx transfer counter |
| (This field is initialized at the |
| same value as transfer size at the |
| beginning of the transfer and |
| decremented when a sample is received |
| NbSamplesReceived = RxBufferSize-RxBufferCount) */ |
| DMA_HandleTypeDef *hdmatx; /*!< I2S Tx DMA handle parameters */ |
| |
| DMA_HandleTypeDef *hdmarx; /*!< I2S Rx DMA handle parameters */ |
| |
| __IO HAL_LockTypeDef Lock; /*!< I2S locking object */ |
| |
| __IO HAL_I2S_StateTypeDef State; /*!< I2S communication state */ |
| |
| __IO uint32_t ErrorCode; /*!< I2S Error code |
| This parameter can be a value of @ref I2S_Error */ |
| |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) |
| void (* TxCpltCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Tx Completed callback */ |
| void (* RxCpltCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Rx Completed callback */ |
| void (* TxHalfCpltCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Tx Half Completed callback */ |
| void (* RxHalfCpltCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Rx Half Completed callback */ |
| void (* ErrorCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Error callback */ |
| void (* MspInitCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Msp Init callback */ |
| void (* MspDeInitCallback)(struct __I2S_HandleTypeDef *hi2s); /*!< I2S Msp DeInit callback */ |
| |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| } I2S_HandleTypeDef; |
| |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) |
| /** |
| * @brief HAL I2S Callback ID enumeration definition |
| */ |
| typedef enum |
| { |
| HAL_I2S_TX_COMPLETE_CB_ID = 0x00U, /*!< I2S Tx Completed callback ID */ |
| HAL_I2S_RX_COMPLETE_CB_ID = 0x01U, /*!< I2S Rx Completed callback ID */ |
| HAL_I2S_TX_HALF_COMPLETE_CB_ID = 0x03U, /*!< I2S Tx Half Completed callback ID */ |
| HAL_I2S_RX_HALF_COMPLETE_CB_ID = 0x04U, /*!< I2S Rx Half Completed callback ID */ |
| HAL_I2S_ERROR_CB_ID = 0x06U, /*!< I2S Error callback ID */ |
| HAL_I2S_MSPINIT_CB_ID = 0x07U, /*!< I2S Msp Init callback ID */ |
| HAL_I2S_MSPDEINIT_CB_ID = 0x08U /*!< I2S Msp DeInit callback ID */ |
| |
| } HAL_I2S_CallbackIDTypeDef; |
| |
| /** |
| * @brief HAL I2S Callback pointer definition |
| */ |
| typedef void (*pI2S_CallbackTypeDef)(I2S_HandleTypeDef *hi2s); /*!< pointer to an I2S callback function */ |
| |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| /** |
| * @} |
| */ |
| |
| /* Exported constants --------------------------------------------------------*/ |
| /** @defgroup I2S_Exported_Constants I2S Exported Constants |
| * @{ |
| */ |
| /** @defgroup I2S_Error I2S Error |
| * @{ |
| */ |
| #define HAL_I2S_ERROR_NONE (0x00000000U) /*!< No error */ |
| #define HAL_I2S_ERROR_TIMEOUT (0x00000001U) /*!< Timeout error */ |
| #define HAL_I2S_ERROR_OVR (0x00000002U) /*!< OVR error */ |
| #define HAL_I2S_ERROR_UDR (0x00000004U) /*!< UDR error */ |
| #define HAL_I2S_ERROR_DMA (0x00000008U) /*!< DMA transfer error */ |
| #define HAL_I2S_ERROR_PRESCALER (0x00000010U) /*!< Prescaler Calculation error */ |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) |
| #define HAL_I2S_ERROR_INVALID_CALLBACK (0x00000020U) /*!< Invalid Callback error */ |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| #define HAL_I2S_ERROR_BUSY_LINE_RX (0x00000040U) /*!< Busy Rx Line error */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Mode I2S Mode |
| * @{ |
| */ |
| #define I2S_MODE_SLAVE_TX (0x00000000U) |
| #define I2S_MODE_SLAVE_RX (SPI_I2SCFGR_I2SCFG_0) |
| #define I2S_MODE_MASTER_TX (SPI_I2SCFGR_I2SCFG_1) |
| #define I2S_MODE_MASTER_RX ((SPI_I2SCFGR_I2SCFG_0 | SPI_I2SCFGR_I2SCFG_1)) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Standard I2S Standard |
| * @{ |
| */ |
| #define I2S_STANDARD_PHILIPS (0x00000000U) |
| #define I2S_STANDARD_MSB (SPI_I2SCFGR_I2SSTD_0) |
| #define I2S_STANDARD_LSB (SPI_I2SCFGR_I2SSTD_1) |
| #define I2S_STANDARD_PCM_SHORT ((SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1)) |
| #define I2S_STANDARD_PCM_LONG ((SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1 | SPI_I2SCFGR_PCMSYNC)) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Data_Format I2S Data Format |
| * @{ |
| */ |
| #define I2S_DATAFORMAT_16B (0x00000000U) |
| #define I2S_DATAFORMAT_16B_EXTENDED (SPI_I2SCFGR_CHLEN) |
| #define I2S_DATAFORMAT_24B ((SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_0)) |
| #define I2S_DATAFORMAT_32B ((SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_1)) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_MCLK_Output I2S MCLK Output |
| * @{ |
| */ |
| #define I2S_MCLKOUTPUT_ENABLE (SPI_I2SPR_MCKOE) |
| #define I2S_MCLKOUTPUT_DISABLE (0x00000000U) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Audio_Frequency I2S Audio Frequency |
| * @{ |
| */ |
| #define I2S_AUDIOFREQ_192K (192000U) |
| #define I2S_AUDIOFREQ_96K (96000U) |
| #define I2S_AUDIOFREQ_48K (48000U) |
| #define I2S_AUDIOFREQ_44K (44100U) |
| #define I2S_AUDIOFREQ_32K (32000U) |
| #define I2S_AUDIOFREQ_22K (22050U) |
| #define I2S_AUDIOFREQ_16K (16000U) |
| #define I2S_AUDIOFREQ_11K (11025U) |
| #define I2S_AUDIOFREQ_8K (8000U) |
| #define I2S_AUDIOFREQ_DEFAULT (2U) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Clock_Polarity I2S Clock Polarity |
| * @{ |
| */ |
| #define I2S_CPOL_LOW (0x00000000U) |
| #define I2S_CPOL_HIGH (SPI_I2SCFGR_CKPOL) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Interrupts_Definition I2S Interrupts Definition |
| * @{ |
| */ |
| #define I2S_IT_TXE SPI_CR2_TXEIE |
| #define I2S_IT_RXNE SPI_CR2_RXNEIE |
| #define I2S_IT_ERR SPI_CR2_ERRIE |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2S_Flags_Definition I2S Flags Definition |
| * @{ |
| */ |
| #define I2S_FLAG_TXE SPI_SR_TXE |
| #define I2S_FLAG_RXNE SPI_SR_RXNE |
| |
| #define I2S_FLAG_UDR SPI_SR_UDR |
| #define I2S_FLAG_OVR SPI_SR_OVR |
| #define I2S_FLAG_FRE SPI_SR_FRE |
| |
| #define I2S_FLAG_CHSIDE SPI_SR_CHSIDE |
| #define I2S_FLAG_BSY SPI_SR_BSY |
| |
| #define I2S_FLAG_MASK (SPI_SR_RXNE\ |
| | SPI_SR_TXE | SPI_SR_UDR | SPI_SR_OVR | SPI_SR_FRE | SPI_SR_CHSIDE | SPI_SR_BSY) |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported macros -----------------------------------------------------------*/ |
| /** @defgroup I2S_Exported_macros I2S Exported Macros |
| * @{ |
| */ |
| |
| /** @brief Reset I2S handle state |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) |
| #define __HAL_I2S_RESET_HANDLE_STATE(__HANDLE__) do{ \ |
| (__HANDLE__)->State = HAL_I2S_STATE_RESET; \ |
| (__HANDLE__)->MspInitCallback = NULL; \ |
| (__HANDLE__)->MspDeInitCallback = NULL; \ |
| } while(0) |
| #else |
| #define __HAL_I2S_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2S_STATE_RESET) |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| |
| /** @brief Enable the specified SPI peripheral (in I2S mode). |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #define __HAL_I2S_ENABLE(__HANDLE__) (SET_BIT((__HANDLE__)->Instance->I2SCFGR, SPI_I2SCFGR_I2SE)) |
| |
| /** @brief Disable the specified SPI peripheral (in I2S mode). |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #define __HAL_I2S_DISABLE(__HANDLE__) (CLEAR_BIT((__HANDLE__)->Instance->I2SCFGR, SPI_I2SCFGR_I2SE)) |
| |
| /** @brief Enable the specified I2S interrupts. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @param __INTERRUPT__ specifies the interrupt source to enable or disable. |
| * This parameter can be one of the following values: |
| * @arg I2S_IT_TXE: Tx buffer empty interrupt enable |
| * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable |
| * @arg I2S_IT_ERR: Error interrupt enable |
| * @retval None |
| */ |
| #define __HAL_I2S_ENABLE_IT(__HANDLE__, __INTERRUPT__) (SET_BIT((__HANDLE__)->Instance->CR2,(__INTERRUPT__))) |
| |
| /** @brief Disable the specified I2S interrupts. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @param __INTERRUPT__ specifies the interrupt source to enable or disable. |
| * This parameter can be one of the following values: |
| * @arg I2S_IT_TXE: Tx buffer empty interrupt enable |
| * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable |
| * @arg I2S_IT_ERR: Error interrupt enable |
| * @retval None |
| */ |
| #define __HAL_I2S_DISABLE_IT(__HANDLE__, __INTERRUPT__) (CLEAR_BIT((__HANDLE__)->Instance->CR2,(__INTERRUPT__))) |
| |
| /** @brief Checks if the specified I2S interrupt source is enabled or disabled. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * This parameter can be I2S where x: 1, 2, or 3 to select the I2S peripheral. |
| * @param __INTERRUPT__ specifies the I2S interrupt source to check. |
| * This parameter can be one of the following values: |
| * @arg I2S_IT_TXE: Tx buffer empty interrupt enable |
| * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable |
| * @arg I2S_IT_ERR: Error interrupt enable |
| * @retval The new state of __IT__ (TRUE or FALSE). |
| */ |
| #define __HAL_I2S_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2\ |
| & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) |
| |
| /** @brief Checks whether the specified I2S flag is set or not. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @param __FLAG__ specifies the flag to check. |
| * This parameter can be one of the following values: |
| * @arg I2S_FLAG_RXNE: Receive buffer not empty flag |
| * @arg I2S_FLAG_TXE: Transmit buffer empty flag |
| * @arg I2S_FLAG_UDR: Underrun flag |
| * @arg I2S_FLAG_OVR: Overrun flag |
| * @arg I2S_FLAG_FRE: Frame error flag |
| * @arg I2S_FLAG_CHSIDE: Channel Side flag |
| * @arg I2S_FLAG_BSY: Busy flag |
| * @retval The new state of __FLAG__ (TRUE or FALSE). |
| */ |
| #define __HAL_I2S_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__)) |
| |
| /** @brief Clears the I2S OVR pending flag. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #define __HAL_I2S_CLEAR_OVRFLAG(__HANDLE__) do{ \ |
| __IO uint32_t tmpreg_ovr = 0x00U; \ |
| tmpreg_ovr = (__HANDLE__)->Instance->DR; \ |
| tmpreg_ovr = (__HANDLE__)->Instance->SR; \ |
| UNUSED(tmpreg_ovr); \ |
| }while(0U) |
| /** @brief Clears the I2S UDR pending flag. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #define __HAL_I2S_CLEAR_UDRFLAG(__HANDLE__) do{\ |
| __IO uint32_t tmpreg_udr = 0x00U;\ |
| tmpreg_udr = ((__HANDLE__)->Instance->SR);\ |
| UNUSED(tmpreg_udr); \ |
| }while(0U) |
| /** @brief Flush the I2S DR Register. |
| * @param __HANDLE__ specifies the I2S Handle. |
| * @retval None |
| */ |
| #define __HAL_I2S_FLUSH_RX_DR(__HANDLE__) do{\ |
| __IO uint32_t tmpreg_dr = 0x00U;\ |
| tmpreg_dr = ((__HANDLE__)->Instance->DR);\ |
| UNUSED(tmpreg_dr); \ |
| }while(0U) |
| /** |
| * @} |
| */ |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @addtogroup I2S_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup I2S_Exported_Functions_Group1 |
| * @{ |
| */ |
| /* Initialization/de-initialization functions ********************************/ |
| HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s); |
| HAL_StatusTypeDef HAL_I2S_DeInit(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s); |
| |
| /* Callbacks Register/UnRegister functions ***********************************/ |
| #if (USE_HAL_I2S_REGISTER_CALLBACKS == 1U) |
| HAL_StatusTypeDef HAL_I2S_RegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID, |
| pI2S_CallbackTypeDef pCallback); |
| HAL_StatusTypeDef HAL_I2S_UnRegisterCallback(I2S_HandleTypeDef *hi2s, HAL_I2S_CallbackIDTypeDef CallbackID); |
| #endif /* USE_HAL_I2S_REGISTER_CALLBACKS */ |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup I2S_Exported_Functions_Group2 |
| * @{ |
| */ |
| /* I/O operation functions ***************************************************/ |
| /* Blocking mode: Polling */ |
| HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout); |
| HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout); |
| |
| /* Non-Blocking mode: Interrupt */ |
| HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size); |
| HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size); |
| void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s); |
| |
| /* Non-Blocking mode: DMA */ |
| HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size); |
| HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size); |
| |
| HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s); |
| HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s); |
| HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s); |
| |
| /* Callbacks used in non blocking modes (Interrupt and DMA) *******************/ |
| void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s); |
| void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s); |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup I2S_Exported_Functions_Group3 |
| * @{ |
| */ |
| /* Peripheral Control and State functions ************************************/ |
| HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s); |
| uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s); |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup I2S_Private_Macros I2S Private Macros |
| * @{ |
| */ |
| |
| /** @brief Check whether the specified SPI flag is set or not. |
| * @param __SR__ copy of I2S SR register. |
| * @param __FLAG__ specifies the flag to check. |
| * This parameter can be one of the following values: |
| * @arg I2S_FLAG_RXNE: Receive buffer not empty flag |
| * @arg I2S_FLAG_TXE: Transmit buffer empty flag |
| * @arg I2S_FLAG_UDR: Underrun error flag |
| * @arg I2S_FLAG_OVR: Overrun flag |
| * @arg I2S_FLAG_CHSIDE: Channel side flag |
| * @arg I2S_FLAG_BSY: Busy flag |
| * @retval SET or RESET. |
| */ |
| #define I2S_CHECK_FLAG(__SR__, __FLAG__) ((((__SR__)\ |
| & ((__FLAG__) & I2S_FLAG_MASK)) == ((__FLAG__) & I2S_FLAG_MASK)) ? SET : RESET) |
| |
| /** @brief Check whether the specified SPI Interrupt is set or not. |
| * @param __CR2__ copy of I2S CR2 register. |
| * @param __INTERRUPT__ specifies the SPI interrupt source to check. |
| * This parameter can be one of the following values: |
| * @arg I2S_IT_TXE: Tx buffer empty interrupt enable |
| * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable |
| * @arg I2S_IT_ERR: Error interrupt enable |
| * @retval SET or RESET. |
| */ |
| #define I2S_CHECK_IT_SOURCE(__CR2__, __INTERRUPT__) ((((__CR2__)\ |
| & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) |
| |
| /** @brief Checks if I2S Mode parameter is in allowed range. |
| * @param __MODE__ specifies the I2S Mode. |
| * This parameter can be a value of @ref I2S_Mode |
| * @retval None |
| */ |
| #define IS_I2S_MODE(__MODE__) (((__MODE__) == I2S_MODE_SLAVE_TX) || \ |
| ((__MODE__) == I2S_MODE_SLAVE_RX) || \ |
| ((__MODE__) == I2S_MODE_MASTER_TX) || \ |
| ((__MODE__) == I2S_MODE_MASTER_RX)) |
| |
| #define IS_I2S_STANDARD(__STANDARD__) (((__STANDARD__) == I2S_STANDARD_PHILIPS) || \ |
| ((__STANDARD__) == I2S_STANDARD_MSB) || \ |
| ((__STANDARD__) == I2S_STANDARD_LSB) || \ |
| ((__STANDARD__) == I2S_STANDARD_PCM_SHORT) || \ |
| ((__STANDARD__) == I2S_STANDARD_PCM_LONG)) |
| |
| #define IS_I2S_DATA_FORMAT(__FORMAT__) (((__FORMAT__) == I2S_DATAFORMAT_16B) || \ |
| ((__FORMAT__) == I2S_DATAFORMAT_16B_EXTENDED) || \ |
| ((__FORMAT__) == I2S_DATAFORMAT_24B) || \ |
| ((__FORMAT__) == I2S_DATAFORMAT_32B)) |
| |
| #define IS_I2S_MCLK_OUTPUT(__OUTPUT__) (((__OUTPUT__) == I2S_MCLKOUTPUT_ENABLE) || \ |
| ((__OUTPUT__) == I2S_MCLKOUTPUT_DISABLE)) |
| |
| #define IS_I2S_AUDIO_FREQ(__FREQ__) ((((__FREQ__) >= I2S_AUDIOFREQ_8K) && \ |
| ((__FREQ__) <= I2S_AUDIOFREQ_192K)) || \ |
| ((__FREQ__) == I2S_AUDIOFREQ_DEFAULT)) |
| |
| /** @brief Checks if I2S Serial clock steady state parameter is in allowed range. |
| * @param __CPOL__ specifies the I2S serial clock steady state. |
| * This parameter can be a value of @ref I2S_Clock_Polarity |
| * @retval None |
| */ |
| #define IS_I2S_CPOL(__CPOL__) (((__CPOL__) == I2S_CPOL_LOW) || \ |
| ((__CPOL__) == I2S_CPOL_HIGH)) |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| #endif /* SPI_I2S_SUPPORT */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* STM32L0xx_HAL_I2S_H */ |
