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Diff: TARGET_NUCLEO_F091RC/TOOLCHAIN_IAR/stm32f0xx_ll_spi.h
- Revision:
- 171:3a7713b1edbc
diff -r e95d10626187 -r 3a7713b1edbc TARGET_NUCLEO_F091RC/TOOLCHAIN_IAR/stm32f0xx_ll_spi.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_F091RC/TOOLCHAIN_IAR/stm32f0xx_ll_spi.h Thu Nov 08 11:45:42 2018 +0000 @@ -0,0 +1,2301 @@ +/** + ****************************************************************************** + * @file stm32f0xx_ll_spi.h + * @author MCD Application Team + * @brief Header file of SPI LL module. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2016 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. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F0xx_LL_SPI_H +#define __STM32F0xx_LL_SPI_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f0xx.h" + +/** @addtogroup STM32F0xx_LL_Driver + * @{ + */ + +#if defined (SPI1) || defined (SPI2) + +/** @defgroup SPI_LL SPI + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup SPI_LL_ES_INIT SPI Exported Init structure + * @{ + */ + +/** + * @brief SPI Init structures definition + */ +typedef struct +{ + uint32_t TransferDirection; /*!< Specifies the SPI unidirectional or bidirectional data mode. + This parameter can be a value of @ref SPI_LL_EC_TRANSFER_MODE. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferDirection().*/ + + uint32_t Mode; /*!< Specifies the SPI mode (Master/Slave). + This parameter can be a value of @ref SPI_LL_EC_MODE. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetMode().*/ + + uint32_t DataWidth; /*!< Specifies the SPI data width. + This parameter can be a value of @ref SPI_LL_EC_DATAWIDTH. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetDataWidth().*/ + + uint32_t ClockPolarity; /*!< Specifies the serial clock steady state. + This parameter can be a value of @ref SPI_LL_EC_POLARITY. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPolarity().*/ + + uint32_t ClockPhase; /*!< Specifies the clock active edge for the bit capture. + This parameter can be a value of @ref SPI_LL_EC_PHASE. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPhase().*/ + + uint32_t NSS; /*!< Specifies whether the NSS signal is managed by hardware (NSS pin) or by software using the SSI bit. + This parameter can be a value of @ref SPI_LL_EC_NSS_MODE. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetNSSMode().*/ + + uint32_t BaudRate; /*!< Specifies the BaudRate prescaler value which will be used to configure the transmit and receive SCK clock. + This parameter can be a value of @ref SPI_LL_EC_BAUDRATEPRESCALER. + @note The communication clock is derived from the master clock. The slave clock does not need to be set. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetBaudRatePrescaler().*/ + + uint32_t BitOrder; /*!< Specifies whether data transfers start from MSB or LSB bit. + This parameter can be a value of @ref SPI_LL_EC_BIT_ORDER. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferBitOrder().*/ + + uint32_t CRCCalculation; /*!< Specifies if the CRC calculation is enabled or not. + This parameter can be a value of @ref SPI_LL_EC_CRC_CALCULATION. + + This feature can be modified afterwards using unitary functions @ref LL_SPI_EnableCRC() and @ref LL_SPI_DisableCRC().*/ + + uint32_t CRCPoly; /*!< Specifies the polynomial used for the CRC calculation. + This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF. + + This feature can be modified afterwards using unitary function @ref LL_SPI_SetCRCPolynomial().*/ + +} LL_SPI_InitTypeDef; + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Constants SPI Exported Constants + * @{ + */ + +/** @defgroup SPI_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_SPI_ReadReg function + * @{ + */ +#define LL_SPI_SR_RXNE SPI_SR_RXNE /*!< Rx buffer not empty flag */ +#define LL_SPI_SR_TXE SPI_SR_TXE /*!< Tx buffer empty flag */ +#define LL_SPI_SR_BSY SPI_SR_BSY /*!< Busy flag */ +#define LL_SPI_SR_CRCERR SPI_SR_CRCERR /*!< CRC error flag */ +#define LL_SPI_SR_MODF SPI_SR_MODF /*!< Mode fault flag */ +#define LL_SPI_SR_OVR SPI_SR_OVR /*!< Overrun flag */ +#define LL_SPI_SR_FRE SPI_SR_FRE /*!< TI mode frame format error flag */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions + * @{ + */ +#define LL_SPI_CR2_RXNEIE SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ +#define LL_SPI_CR2_TXEIE SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ +#define LL_SPI_CR2_ERRIE SPI_CR2_ERRIE /*!< Error interrupt enable */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_MODE Operation Mode + * @{ + */ +#define LL_SPI_MODE_MASTER (SPI_CR1_MSTR | SPI_CR1_SSI) /*!< Master configuration */ +#define LL_SPI_MODE_SLAVE 0x00000000U /*!< Slave configuration */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_PROTOCOL Serial Protocol + * @{ + */ +#define LL_SPI_PROTOCOL_MOTOROLA 0x00000000U /*!< Motorola mode. Used as default value */ +#define LL_SPI_PROTOCOL_TI (SPI_CR2_FRF) /*!< TI mode */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_PHASE Clock Phase + * @{ + */ +#define LL_SPI_PHASE_1EDGE 0x00000000U /*!< First clock transition is the first data capture edge */ +#define LL_SPI_PHASE_2EDGE (SPI_CR1_CPHA) /*!< Second clock transition is the first data capture edge */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_POLARITY Clock Polarity + * @{ + */ +#define LL_SPI_POLARITY_LOW 0x00000000U /*!< Clock to 0 when idle */ +#define LL_SPI_POLARITY_HIGH (SPI_CR1_CPOL) /*!< Clock to 1 when idle */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_BAUDRATEPRESCALER Baud Rate Prescaler + * @{ + */ +#define LL_SPI_BAUDRATEPRESCALER_DIV2 0x00000000U /*!< BaudRate control equal to fPCLK/2 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV4 (SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/4 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV8 (SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/8 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV16 (SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/16 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV32 (SPI_CR1_BR_2) /*!< BaudRate control equal to fPCLK/32 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV64 (SPI_CR1_BR_2 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/64 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV128 (SPI_CR1_BR_2 | SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/128 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV256 (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/256 */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_BIT_ORDER Transmission Bit Order + * @{ + */ +#define LL_SPI_LSB_FIRST (SPI_CR1_LSBFIRST) /*!< Data is transmitted/received with the LSB first */ +#define LL_SPI_MSB_FIRST 0x00000000U /*!< Data is transmitted/received with the MSB first */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_TRANSFER_MODE Transfer Mode + * @{ + */ +#define LL_SPI_FULL_DUPLEX 0x00000000U /*!< Full-Duplex mode. Rx and Tx transfer on 2 lines */ +#define LL_SPI_SIMPLEX_RX (SPI_CR1_RXONLY) /*!< Simplex Rx mode. Rx transfer only on 1 line */ +#define LL_SPI_HALF_DUPLEX_RX (SPI_CR1_BIDIMODE) /*!< Half-Duplex Rx mode. Rx transfer on 1 line */ +#define LL_SPI_HALF_DUPLEX_TX (SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE) /*!< Half-Duplex Tx mode. Tx transfer on 1 line */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_NSS_MODE Slave Select Pin Mode + * @{ + */ +#define LL_SPI_NSS_SOFT (SPI_CR1_SSM) /*!< NSS managed internally. NSS pin not used and free */ +#define LL_SPI_NSS_HARD_INPUT 0x00000000U /*!< NSS pin used in Input. Only used in Master mode */ +#define LL_SPI_NSS_HARD_OUTPUT (((uint32_t)SPI_CR2_SSOE << 16U)) /*!< NSS pin used in Output. Only used in Slave mode as chip select */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_DATAWIDTH Datawidth + * @{ + */ +#define LL_SPI_DATAWIDTH_4BIT (SPI_CR2_DS_0 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 4 bits */ +#define LL_SPI_DATAWIDTH_5BIT (SPI_CR2_DS_2) /*!< Data length for SPI transfer: 5 bits */ +#define LL_SPI_DATAWIDTH_6BIT (SPI_CR2_DS_2 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 6 bits */ +#define LL_SPI_DATAWIDTH_7BIT (SPI_CR2_DS_2 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 7 bits */ +#define LL_SPI_DATAWIDTH_8BIT (SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 8 bits */ +#define LL_SPI_DATAWIDTH_9BIT (SPI_CR2_DS_3) /*!< Data length for SPI transfer: 9 bits */ +#define LL_SPI_DATAWIDTH_10BIT (SPI_CR2_DS_3 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 10 bits */ +#define LL_SPI_DATAWIDTH_11BIT (SPI_CR2_DS_3 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 11 bits */ +#define LL_SPI_DATAWIDTH_12BIT (SPI_CR2_DS_3 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 12 bits */ +#define LL_SPI_DATAWIDTH_13BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2) /*!< Data length for SPI transfer: 13 bits */ +#define LL_SPI_DATAWIDTH_14BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 14 bits */ +#define LL_SPI_DATAWIDTH_15BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 15 bits */ +#define LL_SPI_DATAWIDTH_16BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 16 bits */ +/** + * @} + */ +#if defined(USE_FULL_LL_DRIVER) + +/** @defgroup SPI_LL_EC_CRC_CALCULATION CRC Calculation + * @{ + */ +#define LL_SPI_CRCCALCULATION_DISABLE 0x00000000U /*!< CRC calculation disabled */ +#define LL_SPI_CRCCALCULATION_ENABLE (SPI_CR1_CRCEN) /*!< CRC calculation enabled */ +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** @defgroup SPI_LL_EC_CRC_LENGTH CRC Length + * @{ + */ +#define LL_SPI_CRC_8BIT 0x00000000U /*!< 8-bit CRC length */ +#define LL_SPI_CRC_16BIT (SPI_CR1_CRCL) /*!< 16-bit CRC length */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_RX_FIFO_TH RX FIFO Threshold + * @{ + */ +#define LL_SPI_RX_FIFO_TH_HALF 0x00000000U /*!< RXNE event is generated if FIFO level is greater than or equel to 1/2 (16-bit) */ +#define LL_SPI_RX_FIFO_TH_QUARTER (SPI_CR2_FRXTH) /*!< RXNE event is generated if FIFO level is greater than or equel to 1/4 (8-bit) */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_RX_FIFO RX FIFO Level + * @{ + */ +#define LL_SPI_RX_FIFO_EMPTY 0x00000000U /*!< FIFO reception empty */ +#define LL_SPI_RX_FIFO_QUARTER_FULL (SPI_SR_FRLVL_0) /*!< FIFO reception 1/4 */ +#define LL_SPI_RX_FIFO_HALF_FULL (SPI_SR_FRLVL_1) /*!< FIFO reception 1/2 */ +#define LL_SPI_RX_FIFO_FULL (SPI_SR_FRLVL_1 | SPI_SR_FRLVL_0) /*!< FIFO reception full */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_TX_FIFO TX FIFO Level + * @{ + */ +#define LL_SPI_TX_FIFO_EMPTY 0x00000000U /*!< FIFO transmission empty */ +#define LL_SPI_TX_FIFO_QUARTER_FULL (SPI_SR_FTLVL_0) /*!< FIFO transmission 1/4 */ +#define LL_SPI_TX_FIFO_HALF_FULL (SPI_SR_FTLVL_1) /*!< FIFO transmission 1/2 */ +#define LL_SPI_TX_FIFO_FULL (SPI_SR_FTLVL_1 | SPI_SR_FTLVL_0) /*!< FIFO transmission full */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_DMA_PARITY DMA Parity + * @{ + */ +#define LL_SPI_DMA_PARITY_EVEN 0x00000000U /*!< Select DMA parity Even */ +#define LL_SPI_DMA_PARITY_ODD 0x00000001U /*!< Select DMA parity Odd */ + +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Macros SPI Exported Macros + * @{ + */ + +/** @defgroup SPI_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in SPI register + * @param __INSTANCE__ SPI Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_SPI_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in SPI register + * @param __INSTANCE__ SPI Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_SPI_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Functions SPI Exported Functions + * @{ + */ + +/** @defgroup SPI_LL_EF_Configuration Configuration + * @{ + */ + +/** + * @brief Enable SPI peripheral + * @rmtoll CR1 SPE LL_SPI_Enable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_Enable(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_SPE); +} + +/** + * @brief Disable SPI peripheral + * @note When disabling the SPI, follow the procedure described in the Reference Manual. + * @rmtoll CR1 SPE LL_SPI_Disable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_Disable(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); +} + +/** + * @brief Check if SPI peripheral is enabled + * @rmtoll CR1 SPE LL_SPI_IsEnabled + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabled(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR1, SPI_CR1_SPE) == (SPI_CR1_SPE)); +} + +/** + * @brief Set SPI operation mode to Master or Slave + * @note This bit should not be changed when communication is ongoing. + * @rmtoll CR1 MSTR LL_SPI_SetMode\n + * CR1 SSI LL_SPI_SetMode + * @param SPIx SPI Instance + * @param Mode This parameter can be one of the following values: + * @arg @ref LL_SPI_MODE_MASTER + * @arg @ref LL_SPI_MODE_SLAVE + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetMode(SPI_TypeDef *SPIx, uint32_t Mode) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI, Mode); +} + +/** + * @brief Get SPI operation mode (Master or Slave) + * @rmtoll CR1 MSTR LL_SPI_GetMode\n + * CR1 SSI LL_SPI_GetMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_MODE_MASTER + * @arg @ref LL_SPI_MODE_SLAVE + */ +__STATIC_INLINE uint32_t LL_SPI_GetMode(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI)); +} + +/** + * @brief Set serial protocol used + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR2 FRF LL_SPI_SetStandard + * @param SPIx SPI Instance + * @param Standard This parameter can be one of the following values: + * @arg @ref LL_SPI_PROTOCOL_MOTOROLA + * @arg @ref LL_SPI_PROTOCOL_TI + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_FRF, Standard); +} + +/** + * @brief Get serial protocol used + * @rmtoll CR2 FRF LL_SPI_GetStandard + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_PROTOCOL_MOTOROLA + * @arg @ref LL_SPI_PROTOCOL_TI + */ +__STATIC_INLINE uint32_t LL_SPI_GetStandard(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRF)); +} + +/** + * @brief Set clock phase + * @note This bit should not be changed when communication is ongoing. + * This bit is not used in SPI TI mode. + * @rmtoll CR1 CPHA LL_SPI_SetClockPhase + * @param SPIx SPI Instance + * @param ClockPhase This parameter can be one of the following values: + * @arg @ref LL_SPI_PHASE_1EDGE + * @arg @ref LL_SPI_PHASE_2EDGE + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetClockPhase(SPI_TypeDef *SPIx, uint32_t ClockPhase) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CPHA, ClockPhase); +} + +/** + * @brief Get clock phase + * @rmtoll CR1 CPHA LL_SPI_GetClockPhase + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_PHASE_1EDGE + * @arg @ref LL_SPI_PHASE_2EDGE + */ +__STATIC_INLINE uint32_t LL_SPI_GetClockPhase(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPHA)); +} + +/** + * @brief Set clock polarity + * @note This bit should not be changed when communication is ongoing. + * This bit is not used in SPI TI mode. + * @rmtoll CR1 CPOL LL_SPI_SetClockPolarity + * @param SPIx SPI Instance + * @param ClockPolarity This parameter can be one of the following values: + * @arg @ref LL_SPI_POLARITY_LOW + * @arg @ref LL_SPI_POLARITY_HIGH + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CPOL, ClockPolarity); +} + +/** + * @brief Get clock polarity + * @rmtoll CR1 CPOL LL_SPI_GetClockPolarity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_POLARITY_LOW + * @arg @ref LL_SPI_POLARITY_HIGH + */ +__STATIC_INLINE uint32_t LL_SPI_GetClockPolarity(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPOL)); +} + +/** + * @brief Set baud rate prescaler + * @note These bits should not be changed when communication is ongoing. SPI BaudRate = fPCLK/Prescaler. + * @rmtoll CR1 BR LL_SPI_SetBaudRatePrescaler + * @param SPIx SPI Instance + * @param BaudRate This parameter can be one of the following values: + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetBaudRatePrescaler(SPI_TypeDef *SPIx, uint32_t BaudRate) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_BR, BaudRate); +} + +/** + * @brief Get baud rate prescaler + * @rmtoll CR1 BR LL_SPI_GetBaudRatePrescaler + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 + */ +__STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_BR)); +} + +/** + * @brief Set transfer bit order + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR1 LSBFIRST LL_SPI_SetTransferBitOrder + * @param SPIx SPI Instance + * @param BitOrder This parameter can be one of the following values: + * @arg @ref LL_SPI_LSB_FIRST + * @arg @ref LL_SPI_MSB_FIRST + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetTransferBitOrder(SPI_TypeDef *SPIx, uint32_t BitOrder) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_LSBFIRST, BitOrder); +} + +/** + * @brief Get transfer bit order + * @rmtoll CR1 LSBFIRST LL_SPI_GetTransferBitOrder + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_LSB_FIRST + * @arg @ref LL_SPI_MSB_FIRST + */ +__STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_LSBFIRST)); +} + +/** + * @brief Set transfer direction mode + * @note For Half-Duplex mode, Rx Direction is set by default. + * In master mode, the MOSI pin is used and in slave mode, the MISO pin is used for Half-Duplex. + * @rmtoll CR1 RXONLY LL_SPI_SetTransferDirection\n + * CR1 BIDIMODE LL_SPI_SetTransferDirection\n + * CR1 BIDIOE LL_SPI_SetTransferDirection + * @param SPIx SPI Instance + * @param TransferDirection This parameter can be one of the following values: + * @arg @ref LL_SPI_FULL_DUPLEX + * @arg @ref LL_SPI_SIMPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_TX + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetTransferDirection(SPI_TypeDef *SPIx, uint32_t TransferDirection) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE, TransferDirection); +} + +/** + * @brief Get transfer direction mode + * @rmtoll CR1 RXONLY LL_SPI_GetTransferDirection\n + * CR1 BIDIMODE LL_SPI_GetTransferDirection\n + * CR1 BIDIOE LL_SPI_GetTransferDirection + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_FULL_DUPLEX + * @arg @ref LL_SPI_SIMPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_TX + */ +__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE)); +} + +/** + * @brief Set frame data width + * @rmtoll CR2 DS LL_SPI_SetDataWidth + * @param SPIx SPI Instance + * @param DataWidth This parameter can be one of the following values: + * @arg @ref LL_SPI_DATAWIDTH_4BIT + * @arg @ref LL_SPI_DATAWIDTH_5BIT + * @arg @ref LL_SPI_DATAWIDTH_6BIT + * @arg @ref LL_SPI_DATAWIDTH_7BIT + * @arg @ref LL_SPI_DATAWIDTH_8BIT + * @arg @ref LL_SPI_DATAWIDTH_9BIT + * @arg @ref LL_SPI_DATAWIDTH_10BIT + * @arg @ref LL_SPI_DATAWIDTH_11BIT + * @arg @ref LL_SPI_DATAWIDTH_12BIT + * @arg @ref LL_SPI_DATAWIDTH_13BIT + * @arg @ref LL_SPI_DATAWIDTH_14BIT + * @arg @ref LL_SPI_DATAWIDTH_15BIT + * @arg @ref LL_SPI_DATAWIDTH_16BIT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDataWidth(SPI_TypeDef *SPIx, uint32_t DataWidth) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_DS, DataWidth); +} + +/** + * @brief Get frame data width + * @rmtoll CR2 DS LL_SPI_GetDataWidth + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DATAWIDTH_4BIT + * @arg @ref LL_SPI_DATAWIDTH_5BIT + * @arg @ref LL_SPI_DATAWIDTH_6BIT + * @arg @ref LL_SPI_DATAWIDTH_7BIT + * @arg @ref LL_SPI_DATAWIDTH_8BIT + * @arg @ref LL_SPI_DATAWIDTH_9BIT + * @arg @ref LL_SPI_DATAWIDTH_10BIT + * @arg @ref LL_SPI_DATAWIDTH_11BIT + * @arg @ref LL_SPI_DATAWIDTH_12BIT + * @arg @ref LL_SPI_DATAWIDTH_13BIT + * @arg @ref LL_SPI_DATAWIDTH_14BIT + * @arg @ref LL_SPI_DATAWIDTH_15BIT + * @arg @ref LL_SPI_DATAWIDTH_16BIT + */ +__STATIC_INLINE uint32_t LL_SPI_GetDataWidth(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_DS)); +} + +/** + * @brief Set threshold of RXFIFO that triggers an RXNE event + * @rmtoll CR2 FRXTH LL_SPI_SetRxFIFOThreshold + * @param SPIx SPI Instance + * @param Threshold This parameter can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_TH_HALF + * @arg @ref LL_SPI_RX_FIFO_TH_QUARTER + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetRxFIFOThreshold(SPI_TypeDef *SPIx, uint32_t Threshold) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_FRXTH, Threshold); +} + +/** + * @brief Get threshold of RXFIFO that triggers an RXNE event + * @rmtoll CR2 FRXTH LL_SPI_GetRxFIFOThreshold + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_TH_HALF + * @arg @ref LL_SPI_RX_FIFO_TH_QUARTER + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxFIFOThreshold(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRXTH)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_CRC_Management CRC Management + * @{ + */ + +/** + * @brief Enable CRC + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_EnableCRC + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableCRC(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_CRCEN); +} + +/** + * @brief Disable CRC + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_DisableCRC + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableCRC(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR1, SPI_CR1_CRCEN); +} + +/** + * @brief Check if CRC is enabled + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_IsEnabledCRC + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledCRC(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR1, SPI_CR1_CRCEN) == (SPI_CR1_CRCEN)); +} + +/** + * @brief Set CRC Length + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCL LL_SPI_SetCRCWidth + * @param SPIx SPI Instance + * @param CRCLength This parameter can be one of the following values: + * @arg @ref LL_SPI_CRC_8BIT + * @arg @ref LL_SPI_CRC_16BIT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCWidth(SPI_TypeDef *SPIx, uint32_t CRCLength) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CRCL, CRCLength); +} + +/** + * @brief Get CRC Length + * @rmtoll CR1 CRCL LL_SPI_GetCRCWidth + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_CRC_8BIT + * @arg @ref LL_SPI_CRC_16BIT + */ +__STATIC_INLINE uint32_t LL_SPI_GetCRCWidth(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CRCL)); +} + +/** + * @brief Set CRCNext to transfer CRC on the line + * @note This bit has to be written as soon as the last data is written in the SPIx_DR register. + * @rmtoll CR1 CRCNEXT LL_SPI_SetCRCNext + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCNext(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_CRCNEXT); +} + +/** + * @brief Set polynomial for CRC calculation + * @rmtoll CRCPR CRCPOLY LL_SPI_SetCRCPolynomial + * @param SPIx SPI Instance + * @param CRCPoly This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCPolynomial(SPI_TypeDef *SPIx, uint32_t CRCPoly) +{ + WRITE_REG(SPIx->CRCPR, (uint16_t)CRCPoly); +} + +/** + * @brief Get polynomial for CRC calculation + * @rmtoll CRCPR CRCPOLY LL_SPI_GetCRCPolynomial + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetCRCPolynomial(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->CRCPR)); +} + +/** + * @brief Get Rx CRC + * @rmtoll RXCRCR RXCRC LL_SPI_GetRxCRC + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxCRC(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->RXCRCR)); +} + +/** + * @brief Get Tx CRC + * @rmtoll TXCRCR TXCRC LL_SPI_GetTxCRC + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetTxCRC(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->TXCRCR)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_NSS_Management Slave Select Pin Management + * @{ + */ + +/** + * @brief Set NSS mode + * @note LL_SPI_NSS_SOFT Mode is not used in SPI TI mode. + * @rmtoll CR1 SSM LL_SPI_SetNSSMode\n + * @rmtoll CR2 SSOE LL_SPI_SetNSSMode + * @param SPIx SPI Instance + * @param NSS This parameter can be one of the following values: + * @arg @ref LL_SPI_NSS_SOFT + * @arg @ref LL_SPI_NSS_HARD_INPUT + * @arg @ref LL_SPI_NSS_HARD_OUTPUT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetNSSMode(SPI_TypeDef *SPIx, uint32_t NSS) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_SSM, NSS); + MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, ((uint32_t)(NSS >> 16U))); +} + +/** + * @brief Get NSS mode + * @rmtoll CR1 SSM LL_SPI_GetNSSMode\n + * @rmtoll CR2 SSOE LL_SPI_GetNSSMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_NSS_SOFT + * @arg @ref LL_SPI_NSS_HARD_INPUT + * @arg @ref LL_SPI_NSS_HARD_OUTPUT + */ +__STATIC_INLINE uint32_t LL_SPI_GetNSSMode(SPI_TypeDef *SPIx) +{ + register uint32_t Ssm = (READ_BIT(SPIx->CR1, SPI_CR1_SSM)); + register uint32_t Ssoe = (READ_BIT(SPIx->CR2, SPI_CR2_SSOE) << 16U); + return (Ssm | Ssoe); +} + +/** + * @brief Enable NSS pulse management + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_EnableNSSPulseMgt + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableNSSPulseMgt(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_NSSP); +} + +/** + * @brief Disable NSS pulse management + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_DisableNSSPulseMgt + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableNSSPulseMgt(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_NSSP); +} + +/** + * @brief Check if NSS pulse is enabled + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_IsEnabledNSSPulse + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledNSSPulse(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_NSSP) == (SPI_CR2_NSSP)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_FLAG_Management FLAG Management + * @{ + */ + +/** + * @brief Check if Rx buffer is not empty + * @rmtoll SR RXNE LL_SPI_IsActiveFlag_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_RXNE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_RXNE) == (SPI_SR_RXNE)); +} + +/** + * @brief Check if Tx buffer is empty + * @rmtoll SR TXE LL_SPI_IsActiveFlag_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_TXE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_TXE) == (SPI_SR_TXE)); +} + +/** + * @brief Get CRC error flag + * @rmtoll SR CRCERR LL_SPI_IsActiveFlag_CRCERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_CRCERR(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_CRCERR) == (SPI_SR_CRCERR)); +} + +/** + * @brief Get mode fault error flag + * @rmtoll SR MODF LL_SPI_IsActiveFlag_MODF + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_MODF(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_MODF) == (SPI_SR_MODF)); +} + +/** + * @brief Get overrun error flag + * @rmtoll SR OVR LL_SPI_IsActiveFlag_OVR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_OVR(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_OVR) == (SPI_SR_OVR)); +} + +/** + * @brief Get busy flag + * @note The BSY flag is cleared under any one of the following conditions: + * -When the SPI is correctly disabled + * -When a fault is detected in Master mode (MODF bit set to 1) + * -In Master mode, when it finishes a data transmission and no new data is ready to be + * sent + * -In Slave mode, when the BSY flag is set to '0' for at least one SPI clock cycle between + * each data transfer. + * @rmtoll SR BSY LL_SPI_IsActiveFlag_BSY + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_BSY) == (SPI_SR_BSY)); +} + +/** + * @brief Get frame format error flag + * @rmtoll SR FRE LL_SPI_IsActiveFlag_FRE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_FRE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_FRE) == (SPI_SR_FRE)); +} + +/** + * @brief Get FIFO reception Level + * @rmtoll SR FRLVL LL_SPI_GetRxFIFOLevel + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_EMPTY + * @arg @ref LL_SPI_RX_FIFO_QUARTER_FULL + * @arg @ref LL_SPI_RX_FIFO_HALF_FULL + * @arg @ref LL_SPI_RX_FIFO_FULL + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxFIFOLevel(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->SR, SPI_SR_FRLVL)); +} + +/** + * @brief Get FIFO Transmission Level + * @rmtoll SR FTLVL LL_SPI_GetTxFIFOLevel + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_TX_FIFO_EMPTY + * @arg @ref LL_SPI_TX_FIFO_QUARTER_FULL + * @arg @ref LL_SPI_TX_FIFO_HALF_FULL + * @arg @ref LL_SPI_TX_FIFO_FULL + */ +__STATIC_INLINE uint32_t LL_SPI_GetTxFIFOLevel(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->SR, SPI_SR_FTLVL)); +} + +/** + * @brief Clear CRC error flag + * @rmtoll SR CRCERR LL_SPI_ClearFlag_CRCERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_CRCERR(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->SR, SPI_SR_CRCERR); +} + +/** + * @brief Clear mode fault error flag + * @note Clearing this flag is done by a read access to the SPIx_SR + * register followed by a write access to the SPIx_CR1 register + * @rmtoll SR MODF LL_SPI_ClearFlag_MODF + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_MODF(SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->SR; + (void) tmpreg; + tmpreg = CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); + (void) tmpreg; +} + +/** + * @brief Clear overrun error flag + * @note Clearing this flag is done by a read access to the SPIx_DR + * register followed by a read access to the SPIx_SR register + * @rmtoll SR OVR LL_SPI_ClearFlag_OVR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_OVR(SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->DR; + (void) tmpreg; + tmpreg = SPIx->SR; + (void) tmpreg; +} + +/** + * @brief Clear frame format error flag + * @note Clearing this flag is done by reading SPIx_SR register + * @rmtoll SR FRE LL_SPI_ClearFlag_FRE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_FRE(SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->SR; + (void) tmpreg; +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_IT_Management Interrupt Management + * @{ + */ + +/** + * @brief Enable error interrupt + * @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). + * @rmtoll CR2 ERRIE LL_SPI_EnableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_ERR(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_ERRIE); +} + +/** + * @brief Enable Rx buffer not empty interrupt + * @rmtoll CR2 RXNEIE LL_SPI_EnableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_RXNE(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_RXNEIE); +} + +/** + * @brief Enable Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_EnableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_TXE(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_TXEIE); +} + +/** + * @brief Disable error interrupt + * @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). + * @rmtoll CR2 ERRIE LL_SPI_DisableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_ERR(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_ERRIE); +} + +/** + * @brief Disable Rx buffer not empty interrupt + * @rmtoll CR2 RXNEIE LL_SPI_DisableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_RXNE(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_RXNEIE); +} + +/** + * @brief Disable Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_DisableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_TXE(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_TXEIE); +} + +/** + * @brief Check if error interrupt is enabled + * @rmtoll CR2 ERRIE LL_SPI_IsEnabledIT_ERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_ERR(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_ERRIE) == (SPI_CR2_ERRIE)); +} + +/** + * @brief Check if Rx buffer not empty interrupt is enabled + * @rmtoll CR2 RXNEIE LL_SPI_IsEnabledIT_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_RXNE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_RXNEIE) == (SPI_CR2_RXNEIE)); +} + +/** + * @brief Check if Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_IsEnabledIT_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_TXE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_TXEIE) == (SPI_CR2_TXEIE)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_DMA_Management DMA Management + * @{ + */ + +/** + * @brief Enable DMA Rx + * @rmtoll CR2 RXDMAEN LL_SPI_EnableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableDMAReq_RX(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); +} + +/** + * @brief Disable DMA Rx + * @rmtoll CR2 RXDMAEN LL_SPI_DisableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableDMAReq_RX(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); +} + +/** + * @brief Check if DMA Rx is enabled + * @rmtoll CR2 RXDMAEN LL_SPI_IsEnabledDMAReq_RX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_RXDMAEN) == (SPI_CR2_RXDMAEN)); +} + +/** + * @brief Enable DMA Tx + * @rmtoll CR2 TXDMAEN LL_SPI_EnableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableDMAReq_TX(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); +} + +/** + * @brief Disable DMA Tx + * @rmtoll CR2 TXDMAEN LL_SPI_DisableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableDMAReq_TX(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); +} + +/** + * @brief Check if DMA Tx is enabled + * @rmtoll CR2 TXDMAEN LL_SPI_IsEnabledDMAReq_TX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->CR2, SPI_CR2_TXDMAEN) == (SPI_CR2_TXDMAEN)); +} + +/** + * @brief Set parity of Last DMA reception + * @rmtoll CR2 LDMARX LL_SPI_SetDMAParity_RX + * @param SPIx SPI Instance + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDMAParity_RX(SPI_TypeDef *SPIx, uint32_t Parity) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_LDMARX, (Parity << SPI_CR2_LDMARX_Pos)); +} + +/** + * @brief Get parity configuration for Last DMA reception + * @rmtoll CR2 LDMARX LL_SPI_GetDMAParity_RX + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + */ +__STATIC_INLINE uint32_t LL_SPI_GetDMAParity_RX(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_LDMARX) >> SPI_CR2_LDMARX_Pos); +} + +/** + * @brief Set parity of Last DMA transmission + * @rmtoll CR2 LDMATX LL_SPI_SetDMAParity_TX + * @param SPIx SPI Instance + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDMAParity_TX(SPI_TypeDef *SPIx, uint32_t Parity) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_LDMATX, (Parity << SPI_CR2_LDMATX_Pos)); +} + +/** + * @brief Get parity configuration for Last DMA transmission + * @rmtoll CR2 LDMATX LL_SPI_GetDMAParity_TX + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + */ +__STATIC_INLINE uint32_t LL_SPI_GetDMAParity_TX(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_LDMATX) >> SPI_CR2_LDMATX_Pos); +} + +/** + * @brief Get the data register address used for DMA transfer + * @rmtoll DR DR LL_SPI_DMA_GetRegAddr + * @param SPIx SPI Instance + * @retval Address of data register + */ +__STATIC_INLINE uint32_t LL_SPI_DMA_GetRegAddr(SPI_TypeDef *SPIx) +{ + return (uint32_t) & (SPIx->DR); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_DATA_Management DATA Management + * @{ + */ + +/** + * @brief Read 8-Bits in the data register + * @rmtoll DR DR LL_SPI_ReceiveData8 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFF + */ +__STATIC_INLINE uint8_t LL_SPI_ReceiveData8(SPI_TypeDef *SPIx) +{ + return (uint8_t)(READ_REG(SPIx->DR)); +} + +/** + * @brief Read 16-Bits in the data register + * @rmtoll DR DR LL_SPI_ReceiveData16 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFFFF + */ +__STATIC_INLINE uint16_t LL_SPI_ReceiveData16(SPI_TypeDef *SPIx) +{ + return (uint16_t)(READ_REG(SPIx->DR)); +} + +/** + * @brief Write 8-Bits in the data register + * @rmtoll DR DR LL_SPI_TransmitData8 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x00 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_TransmitData8(SPI_TypeDef *SPIx, uint8_t TxData) +{ + *((__IO uint8_t *)&SPIx->DR) = TxData; +} + +#if __GNUC__ +# define MAY_ALIAS __attribute__ ((__may_alias__)) +#else +# define MAY_ALIAS +#endif + +typedef __IO uint16_t MAY_ALIAS uint16_io_t; + +/** + * @brief Write 16-Bits in the data register + * @rmtoll DR DR LL_SPI_TransmitData16 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x00 and Max_Data=0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) +{ + *((uint16_io_t*)&SPIx->DR) = TxData; +} + +/** + * @} + */ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup SPI_LL_EF_Init Initialization and de-initialization functions + * @{ + */ + +ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx); +ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct); +void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct); + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ +/** + * @} + */ + +/** + * @} + */ + +#if defined(SPI_I2S_SUPPORT) +/** @defgroup I2S_LL I2S + * @{ + */ + +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup I2S_LL_ES_INIT I2S Exported Init structure + * @{ + */ + +/** + * @brief I2S Init structure definition + */ + +typedef struct +{ + uint32_t Mode; /*!< Specifies the I2S operating mode. + This parameter can be a value of @ref I2S_LL_EC_MODE + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetTransferMode().*/ + + uint32_t Standard; /*!< Specifies the standard used for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_STANDARD + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetStandard().*/ + + + uint32_t DataFormat; /*!< Specifies the data format for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_DATA_FORMAT + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetDataFormat().*/ + + + uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not. + This parameter can be a value of @ref I2S_LL_EC_MCLK_OUTPUT + + This feature can be modified afterwards using unitary functions @ref LL_I2S_EnableMasterClock() or @ref LL_I2S_DisableMasterClock.*/ + + + uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_AUDIO_FREQ + + Audio Frequency can be modified afterwards using Reference manual formulas to calculate Prescaler Linear, Parity + and unitary functions @ref LL_I2S_SetPrescalerLinear() and @ref LL_I2S_SetPrescalerParity() to set it.*/ + + + uint32_t ClockPolarity; /*!< Specifies the idle state of the I2S clock. + This parameter can be a value of @ref I2S_LL_EC_POLARITY + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetClockPolarity().*/ + +} LL_I2S_InitTypeDef; + +/** + * @} + */ +#endif /*USE_FULL_LL_DRIVER*/ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup I2S_LL_Exported_Constants I2S Exported Constants + * @{ + */ + +/** @defgroup I2S_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_I2S_ReadReg function + * @{ + */ +#define LL_I2S_SR_RXNE LL_SPI_SR_RXNE /*!< Rx buffer not empty flag */ +#define LL_I2S_SR_TXE LL_SPI_SR_TXE /*!< Tx buffer empty flag */ +#define LL_I2S_SR_BSY LL_SPI_SR_BSY /*!< Busy flag */ +#define LL_I2S_SR_UDR SPI_SR_UDR /*!< Underrun flag */ +#define LL_I2S_SR_OVR LL_SPI_SR_OVR /*!< Overrun flag */ +#define LL_I2S_SR_FRE LL_SPI_SR_FRE /*!< TI mode frame format error flag */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions + * @{ + */ +#define LL_I2S_CR2_RXNEIE LL_SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ +#define LL_I2S_CR2_TXEIE LL_SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ +#define LL_I2S_CR2_ERRIE LL_SPI_CR2_ERRIE /*!< Error interrupt enable */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_DATA_FORMAT Data format + * @{ + */ +#define LL_I2S_DATAFORMAT_16B 0x00000000U /*!< Data length 16 bits, Channel lenght 16bit */ +#define LL_I2S_DATAFORMAT_16B_EXTENDED (SPI_I2SCFGR_CHLEN) /*!< Data length 16 bits, Channel lenght 32bit */ +#define LL_I2S_DATAFORMAT_24B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_0) /*!< Data length 24 bits, Channel lenght 32bit */ +#define LL_I2S_DATAFORMAT_32B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_1) /*!< Data length 16 bits, Channel lenght 32bit */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_POLARITY Clock Polarity + * @{ + */ +#define LL_I2S_POLARITY_LOW 0x00000000U /*!< Clock steady state is low level */ +#define LL_I2S_POLARITY_HIGH (SPI_I2SCFGR_CKPOL) /*!< Clock steady state is high level */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_STANDARD I2s Standard + * @{ + */ +#define LL_I2S_STANDARD_PHILIPS 0x00000000U /*!< I2S standard philips */ +#define LL_I2S_STANDARD_MSB (SPI_I2SCFGR_I2SSTD_0) /*!< MSB justified standard (left justified) */ +#define LL_I2S_STANDARD_LSB (SPI_I2SCFGR_I2SSTD_1) /*!< LSB justified standard (right justified) */ +#define LL_I2S_STANDARD_PCM_SHORT (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1) /*!< PCM standard, short frame synchronization */ +#define LL_I2S_STANDARD_PCM_LONG (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1 | SPI_I2SCFGR_PCMSYNC) /*!< PCM standard, long frame synchronization */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_MODE Operation Mode + * @{ + */ +#define LL_I2S_MODE_SLAVE_TX 0x00000000U /*!< Slave Tx configuration */ +#define LL_I2S_MODE_SLAVE_RX (SPI_I2SCFGR_I2SCFG_0) /*!< Slave Rx configuration */ +#define LL_I2S_MODE_MASTER_TX (SPI_I2SCFGR_I2SCFG_1) /*!< Master Tx configuration */ +#define LL_I2S_MODE_MASTER_RX (SPI_I2SCFGR_I2SCFG_0 | SPI_I2SCFGR_I2SCFG_1) /*!< Master Rx configuration */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_PRESCALER_FACTOR Prescaler Factor + * @{ + */ +#define LL_I2S_PRESCALER_PARITY_EVEN 0x00000000U /*!< Odd factor: Real divider value is = I2SDIV * 2 */ +#define LL_I2S_PRESCALER_PARITY_ODD (SPI_I2SPR_ODD >> 8U) /*!< Odd factor: Real divider value is = (I2SDIV * 2)+1 */ +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) + +/** @defgroup I2S_LL_EC_MCLK_OUTPUT MCLK Output + * @{ + */ +#define LL_I2S_MCLK_OUTPUT_DISABLE 0x00000000U /*!< Master clock output is disabled */ +#define LL_I2S_MCLK_OUTPUT_ENABLE (SPI_I2SPR_MCKOE) /*!< Master clock output is enabled */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_AUDIO_FREQ Audio Frequency + * @{ + */ + +#define LL_I2S_AUDIOFREQ_192K 192000U /*!< Audio Frequency configuration 192000 Hz */ +#define LL_I2S_AUDIOFREQ_96K 96000U /*!< Audio Frequency configuration 96000 Hz */ +#define LL_I2S_AUDIOFREQ_48K 48000U /*!< Audio Frequency configuration 48000 Hz */ +#define LL_I2S_AUDIOFREQ_44K 44100U /*!< Audio Frequency configuration 44100 Hz */ +#define LL_I2S_AUDIOFREQ_32K 32000U /*!< Audio Frequency configuration 32000 Hz */ +#define LL_I2S_AUDIOFREQ_22K 22050U /*!< Audio Frequency configuration 22050 Hz */ +#define LL_I2S_AUDIOFREQ_16K 16000U /*!< Audio Frequency configuration 16000 Hz */ +#define LL_I2S_AUDIOFREQ_11K 11025U /*!< Audio Frequency configuration 11025 Hz */ +#define LL_I2S_AUDIOFREQ_8K 8000U /*!< Audio Frequency configuration 8000 Hz */ +#define LL_I2S_AUDIOFREQ_DEFAULT 2U /*!< Audio Freq not specified. Register I2SDIV = 2 */ +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup I2S_LL_Exported_Macros I2S Exported Macros + * @{ + */ + +/** @defgroup I2S_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in I2S register + * @param __INSTANCE__ I2S Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_I2S_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in I2S register + * @param __INSTANCE__ I2S Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_I2S_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** + * @} + */ + + +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup I2S_LL_Exported_Functions I2S Exported Functions + * @{ + */ + +/** @defgroup I2S_LL_EF_Configuration Configuration + * @{ + */ + +/** + * @brief Select I2S mode and Enable I2S peripheral + * @rmtoll I2SCFGR I2SMOD LL_I2S_Enable\n + * I2SCFGR I2SE LL_I2S_Enable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_Enable(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); +} + +/** + * @brief Disable I2S peripheral + * @rmtoll I2SCFGR I2SE LL_I2S_Disable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_Disable(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); +} + +/** + * @brief Check if I2S peripheral is enabled + * @rmtoll I2SCFGR I2SE LL_I2S_IsEnabled + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabled(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SE) == (SPI_I2SCFGR_I2SE)); +} + +/** + * @brief Set I2S data frame length + * @rmtoll I2SCFGR DATLEN LL_I2S_SetDataFormat\n + * I2SCFGR CHLEN LL_I2S_SetDataFormat + * @param SPIx SPI Instance + * @param DataFormat This parameter can be one of the following values: + * @arg @ref LL_I2S_DATAFORMAT_16B + * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED + * @arg @ref LL_I2S_DATAFORMAT_24B + * @arg @ref LL_I2S_DATAFORMAT_32B + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetDataFormat(SPI_TypeDef *SPIx, uint32_t DataFormat) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN, DataFormat); +} + +/** + * @brief Get I2S data frame length + * @rmtoll I2SCFGR DATLEN LL_I2S_GetDataFormat\n + * I2SCFGR CHLEN LL_I2S_GetDataFormat + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_DATAFORMAT_16B + * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED + * @arg @ref LL_I2S_DATAFORMAT_24B + * @arg @ref LL_I2S_DATAFORMAT_32B + */ +__STATIC_INLINE uint32_t LL_I2S_GetDataFormat(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)); +} + +/** + * @brief Set I2S clock polarity + * @rmtoll I2SCFGR CKPOL LL_I2S_SetClockPolarity + * @param SPIx SPI Instance + * @param ClockPolarity This parameter can be one of the following values: + * @arg @ref LL_I2S_POLARITY_LOW + * @arg @ref LL_I2S_POLARITY_HIGH + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) +{ + SET_BIT(SPIx->I2SCFGR, ClockPolarity); +} + +/** + * @brief Get I2S clock polarity + * @rmtoll I2SCFGR CKPOL LL_I2S_GetClockPolarity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_POLARITY_LOW + * @arg @ref LL_I2S_POLARITY_HIGH + */ +__STATIC_INLINE uint32_t LL_I2S_GetClockPolarity(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_CKPOL)); +} + +/** + * @brief Set I2S standard protocol + * @rmtoll I2SCFGR I2SSTD LL_I2S_SetStandard\n + * I2SCFGR PCMSYNC LL_I2S_SetStandard + * @param SPIx SPI Instance + * @param Standard This parameter can be one of the following values: + * @arg @ref LL_I2S_STANDARD_PHILIPS + * @arg @ref LL_I2S_STANDARD_MSB + * @arg @ref LL_I2S_STANDARD_LSB + * @arg @ref LL_I2S_STANDARD_PCM_SHORT + * @arg @ref LL_I2S_STANDARD_PCM_LONG + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC, Standard); +} + +/** + * @brief Get I2S standard protocol + * @rmtoll I2SCFGR I2SSTD LL_I2S_GetStandard\n + * I2SCFGR PCMSYNC LL_I2S_GetStandard + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_STANDARD_PHILIPS + * @arg @ref LL_I2S_STANDARD_MSB + * @arg @ref LL_I2S_STANDARD_LSB + * @arg @ref LL_I2S_STANDARD_PCM_SHORT + * @arg @ref LL_I2S_STANDARD_PCM_LONG + */ +__STATIC_INLINE uint32_t LL_I2S_GetStandard(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC)); +} + +/** + * @brief Set I2S transfer mode + * @rmtoll I2SCFGR I2SCFG LL_I2S_SetTransferMode + * @param SPIx SPI Instance + * @param Mode This parameter can be one of the following values: + * @arg @ref LL_I2S_MODE_SLAVE_TX + * @arg @ref LL_I2S_MODE_SLAVE_RX + * @arg @ref LL_I2S_MODE_MASTER_TX + * @arg @ref LL_I2S_MODE_MASTER_RX + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetTransferMode(SPI_TypeDef *SPIx, uint32_t Mode) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG, Mode); +} + +/** + * @brief Get I2S transfer mode + * @rmtoll I2SCFGR I2SCFG LL_I2S_GetTransferMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_MODE_SLAVE_TX + * @arg @ref LL_I2S_MODE_SLAVE_RX + * @arg @ref LL_I2S_MODE_MASTER_TX + * @arg @ref LL_I2S_MODE_MASTER_RX + */ +__STATIC_INLINE uint32_t LL_I2S_GetTransferMode(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG)); +} + +/** + * @brief Set I2S linear prescaler + * @rmtoll I2SPR I2SDIV LL_I2S_SetPrescalerLinear + * @param SPIx SPI Instance + * @param PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetPrescalerLinear(SPI_TypeDef *SPIx, uint8_t PrescalerLinear) +{ + MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV, PrescalerLinear); +} + +/** + * @brief Get I2S linear prescaler + * @rmtoll I2SPR I2SDIV LL_I2S_GetPrescalerLinear + * @param SPIx SPI Instance + * @retval PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF + */ +__STATIC_INLINE uint32_t LL_I2S_GetPrescalerLinear(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_I2SDIV)); +} + +/** + * @brief Set I2S parity prescaler + * @rmtoll I2SPR ODD LL_I2S_SetPrescalerParity + * @param SPIx SPI Instance + * @param PrescalerParity This parameter can be one of the following values: + * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN + * @arg @ref LL_I2S_PRESCALER_PARITY_ODD + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetPrescalerParity(SPI_TypeDef *SPIx, uint32_t PrescalerParity) +{ + MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_ODD, PrescalerParity << 8U); +} + +/** + * @brief Get I2S parity prescaler + * @rmtoll I2SPR ODD LL_I2S_GetPrescalerParity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN + * @arg @ref LL_I2S_PRESCALER_PARITY_ODD + */ +__STATIC_INLINE uint32_t LL_I2S_GetPrescalerParity(SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_ODD) >> 8U); +} + +/** + * @brief Enable the master clock ouput (Pin MCK) + * @rmtoll I2SPR MCKOE LL_I2S_EnableMasterClock + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableMasterClock(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); +} + +/** + * @brief Disable the master clock ouput (Pin MCK) + * @rmtoll I2SPR MCKOE LL_I2S_DisableMasterClock + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableMasterClock(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); +} + +/** + * @brief Check if the master clock ouput (Pin MCK) is enabled + * @rmtoll I2SPR MCKOE LL_I2S_IsEnabledMasterClock + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledMasterClock(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE) == (SPI_I2SPR_MCKOE)); +} + +#if defined(SPI_I2SCFGR_ASTRTEN) +/** + * @brief Enable asynchronous start + * @rmtoll I2SCFGR ASTRTEN LL_I2S_EnableAsyncStart + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableAsyncStart(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); +} + +/** + * @brief Disable asynchronous start + * @rmtoll I2SCFGR ASTRTEN LL_I2S_DisableAsyncStart + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableAsyncStart(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); +} + +/** + * @brief Check if asynchronous start is enabled + * @rmtoll I2SCFGR ASTRTEN LL_I2S_IsEnabledAsyncStart + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledAsyncStart(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN) == (SPI_I2SCFGR_ASTRTEN)); +} +#endif /* SPI_I2SCFGR_ASTRTEN */ + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_FLAG FLAG Management + * @{ + */ + +/** + * @brief Check if Rx buffer is not empty + * @rmtoll SR RXNE LL_I2S_IsActiveFlag_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_RXNE(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_RXNE(SPIx); +} + +/** + * @brief Check if Tx buffer is empty + * @rmtoll SR TXE LL_I2S_IsActiveFlag_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_TXE(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_TXE(SPIx); +} + +/** + * @brief Get busy flag + * @rmtoll SR BSY LL_I2S_IsActiveFlag_BSY + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_BSY(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_BSY(SPIx); +} + +/** + * @brief Get overrun error flag + * @rmtoll SR OVR LL_I2S_IsActiveFlag_OVR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_OVR(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_OVR(SPIx); +} + +/** + * @brief Get underrun error flag + * @rmtoll SR UDR LL_I2S_IsActiveFlag_UDR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_UDR(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_UDR) == (SPI_SR_UDR)); +} + +/** + * @brief Get frame format error flag + * @rmtoll SR FRE LL_I2S_IsActiveFlag_FRE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_FRE(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_FRE(SPIx); +} + +/** + * @brief Get channel side flag. + * @note 0: Channel Left has to be transmitted or has been received\n + * 1: Channel Right has to be transmitted or has been received\n + * It has no significance in PCM mode. + * @rmtoll SR CHSIDE LL_I2S_IsActiveFlag_CHSIDE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_CHSIDE(SPI_TypeDef *SPIx) +{ + return (READ_BIT(SPIx->SR, SPI_SR_CHSIDE) == (SPI_SR_CHSIDE)); +} + +/** + * @brief Clear overrun error flag + * @rmtoll SR OVR LL_I2S_ClearFlag_OVR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_OVR(SPI_TypeDef *SPIx) +{ + LL_SPI_ClearFlag_OVR(SPIx); +} + +/** + * @brief Clear underrun error flag + * @rmtoll SR UDR LL_I2S_ClearFlag_UDR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_UDR(SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->SR; + (void)tmpreg; +} + +/** + * @brief Clear frame format error flag + * @rmtoll SR FRE LL_I2S_ClearFlag_FRE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_FRE(SPI_TypeDef *SPIx) +{ + LL_SPI_ClearFlag_FRE(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_IT Interrupt Management + * @{ + */ + +/** + * @brief Enable error IT + * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). + * @rmtoll CR2 ERRIE LL_I2S_EnableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_ERR(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_ERR(SPIx); +} + +/** + * @brief Enable Rx buffer not empty IT + * @rmtoll CR2 RXNEIE LL_I2S_EnableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_RXNE(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_RXNE(SPIx); +} + +/** + * @brief Enable Tx buffer empty IT + * @rmtoll CR2 TXEIE LL_I2S_EnableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_TXE(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_TXE(SPIx); +} + +/** + * @brief Disable error IT + * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). + * @rmtoll CR2 ERRIE LL_I2S_DisableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_ERR(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_ERR(SPIx); +} + +/** + * @brief Disable Rx buffer not empty IT + * @rmtoll CR2 RXNEIE LL_I2S_DisableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_RXNE(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_RXNE(SPIx); +} + +/** + * @brief Disable Tx buffer empty IT + * @rmtoll CR2 TXEIE LL_I2S_DisableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_TXE(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_TXE(SPIx); +} + +/** + * @brief Check if ERR IT is enabled + * @rmtoll CR2 ERRIE LL_I2S_IsEnabledIT_ERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_ERR(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_ERR(SPIx); +} + +/** + * @brief Check if RXNE IT is enabled + * @rmtoll CR2 RXNEIE LL_I2S_IsEnabledIT_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_RXNE(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_RXNE(SPIx); +} + +/** + * @brief Check if TXE IT is enabled + * @rmtoll CR2 TXEIE LL_I2S_IsEnabledIT_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_TXE(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_TXE(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_DMA DMA Management + * @{ + */ + +/** + * @brief Enable DMA Rx + * @rmtoll CR2 RXDMAEN LL_I2S_EnableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableDMAReq_RX(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableDMAReq_RX(SPIx); +} + +/** + * @brief Disable DMA Rx + * @rmtoll CR2 RXDMAEN LL_I2S_DisableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableDMAReq_RX(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableDMAReq_RX(SPIx); +} + +/** + * @brief Check if DMA Rx is enabled + * @rmtoll CR2 RXDMAEN LL_I2S_IsEnabledDMAReq_RX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledDMAReq_RX(SPIx); +} + +/** + * @brief Enable DMA Tx + * @rmtoll CR2 TXDMAEN LL_I2S_EnableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableDMAReq_TX(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableDMAReq_TX(SPIx); +} + +/** + * @brief Disable DMA Tx + * @rmtoll CR2 TXDMAEN LL_I2S_DisableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableDMAReq_TX(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableDMAReq_TX(SPIx); +} + +/** + * @brief Check if DMA Tx is enabled + * @rmtoll CR2 TXDMAEN LL_I2S_IsEnabledDMAReq_TX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledDMAReq_TX(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_DATA DATA Management + * @{ + */ + +/** + * @brief Read 16-Bits in data register + * @rmtoll DR DR LL_I2S_ReceiveData16 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x0000 and Max_Data=0xFFFF + */ +__STATIC_INLINE uint16_t LL_I2S_ReceiveData16(SPI_TypeDef *SPIx) +{ + return LL_SPI_ReceiveData16(SPIx); +} + +/** + * @brief Write 16-Bits in data register + * @rmtoll DR DR LL_I2S_TransmitData16 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x0000 and Max_Data=0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_I2S_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) +{ + LL_SPI_TransmitData16(SPIx, TxData); +} + +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup I2S_LL_EF_Init Initialization and de-initialization functions + * @{ + */ + +ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx); +ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx, LL_I2S_InitTypeDef *I2S_InitStruct); +void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct); +void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity); + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* SPI_I2S_SUPPORT */ + +#endif /* defined (SPI1) || defined (SPI2) */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F0xx_LL_SPI_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/