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host-aprom/NUC123/StdDriver/inc/i2s.h
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2024-06-29 21:17:34 +01:00

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/**************************************************************************//**
* @file i2s.h
* @version V3.0
* $Revision: 6 $
* $Date: 15/07/02 11:21a $
* @brief NUC123 series I2S driver header file
*
* @note
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
******************************************************************************/
#ifndef __I2S_H__
#define __I2S_H__
#include "NUC123.h"
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup I2S_Driver I2S Driver
@{
*/
/** @addtogroup I2S_EXPORTED_CONSTANTS I2S Exported Constants
@{
*/
#define I2S_DATABIT_8 (0 << I2S_CON_WORDWIDTH_Pos) /*!< I2S data width is 8-bit */
#define I2S_DATABIT_16 (1 << I2S_CON_WORDWIDTH_Pos) /*!< I2S data width is 16-bit */
#define I2S_DATABIT_24 (2 << I2S_CON_WORDWIDTH_Pos) /*!< I2S data width is 24-bit */
#define I2S_DATABIT_32 (3 << I2S_CON_WORDWIDTH_Pos) /*!< I2S data width is 32-bit */
/* Audio Format */
#define I2S_MONO I2S_CON_MONO_Msk /*!< Mono channel */
#define I2S_STEREO 0 /*!< Stereo channel */
/* I2S Data Format */
#define I2S_FORMAT_MSB I2S_CON_FORMAT_Msk /*!< MSB data format */
#define I2S_FORMAT_I2S 0 /*!< I2S data format */
#define I2S_FORMAT_PCM_A I2S_CON_PCM_Msk /*!< PCM mode A data format */
#define I2S_FORMAT_PCM_B (I2S_CON_PCM_Msk|I2S_CON_FORMAT_Msk) /*!< PCM mode B data format */
/* I2S Operation mode */
#define I2S_MODE_SLAVE I2S_CON_SLAVE_Msk /*!< As slave mode */
#define I2S_MODE_MASTER 0 /*!< As master mode */
/* I2S FIFO Threshold */
#define I2S_FIFO_TX_LEVEL_WORD_0 0 /*!< TX threshold is 0 word */
#define I2S_FIFO_TX_LEVEL_WORD_1 (1 << I2S_CON_TXTH_Pos) /*!< TX threshold is 1 word */
#define I2S_FIFO_TX_LEVEL_WORD_2 (2 << I2S_CON_TXTH_Pos) /*!< TX threshold is 2 words */
#define I2S_FIFO_TX_LEVEL_WORD_3 (3 << I2S_CON_TXTH_Pos) /*!< TX threshold is 3 words */
#define I2S_FIFO_TX_LEVEL_WORD_4 (4 << I2S_CON_TXTH_Pos) /*!< TX threshold is 4 words */
#define I2S_FIFO_TX_LEVEL_WORD_5 (5 << I2S_CON_TXTH_Pos) /*!< TX threshold is 5 words */
#define I2S_FIFO_TX_LEVEL_WORD_6 (6 << I2S_CON_TXTH_Pos) /*!< TX threshold is 6 words */
#define I2S_FIFO_TX_LEVEL_WORD_7 (7 << I2S_CON_TXTH_Pos) /*!< TX threshold is 7 words */
#define I2S_FIFO_RX_LEVEL_WORD_1 0 /*!< RX threshold is 1 word */
#define I2S_FIFO_RX_LEVEL_WORD_2 (1 << I2S_CON_RXTH_Pos) /*!< RX threshold is 2 words */
#define I2S_FIFO_RX_LEVEL_WORD_3 (2 << I2S_CON_RXTH_Pos) /*!< RX threshold is 3 words */
#define I2S_FIFO_RX_LEVEL_WORD_4 (3 << I2S_CON_RXTH_Pos) /*!< RX threshold is 4 words */
#define I2S_FIFO_RX_LEVEL_WORD_5 (4 << I2S_CON_RXTH_Pos) /*!< RX threshold is 5 words */
#define I2S_FIFO_RX_LEVEL_WORD_6 (5 << I2S_CON_RXTH_Pos) /*!< RX threshold is 6 words */
#define I2S_FIFO_RX_LEVEL_WORD_7 (6 << I2S_CON_RXTH_Pos) /*!< RX threshold is 7 words */
#define I2S_FIFO_RX_LEVEL_WORD_8 (7 << I2S_CON_RXTH_Pos) /*!< RX threshold is 8 words */
/* I2S Record Channel */
#define I2S_MONO_RIGHT 0 /*!< Record mono right channel */
#define I2S_MONO_LEFT I2S_CON_RXLCH_Msk /*!< Record mono left channel */
/* I2S Channel */
#define I2S_RIGHT 0 /*!< Select right channel */
#define I2S_LEFT 1 /*!< Select left channel */
/*@}*/ /* end of group I2S_EXPORTED_CONSTANTS */
/** @addtogroup I2S_EXPORTED_FUNCTIONS I2S Exported Functions
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* inline functions */
/*---------------------------------------------------------------------------------------------------------*/
/**
* @brief Enable zero cross detection function.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32ChMask The mask for left or right channel. Valid values are:
* - \ref I2S_RIGHT
* - \ref I2S_LEFT
* @return None
* @details This function will set RCHZCEN or LCHZCEN bit of I2SCON register to enable zero cross detection function.
*/
static __INLINE void I2S_ENABLE_TX_ZCD(I2S_T *i2s, uint32_t u32ChMask)
{
if(u32ChMask == I2S_RIGHT)
i2s->CON |= I2S_CON_RCHZCEN_Msk;
else
i2s->CON |= I2S_CON_LCHZCEN_Msk;
}
/**
* @brief Disable zero cross detection function.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32ChMask The mask for left or right channel. Valid values are:
* - \ref I2S_RIGHT
* - \ref I2S_LEFT
* @return None
* @details This function will clear RCHZCEN or LCHZCEN bit of I2SCON register to disable zero cross detection function.
*/
static __INLINE void I2S_DISABLE_TX_ZCD(I2S_T *i2s, uint32_t u32ChMask)
{
if(u32ChMask == I2S_RIGHT)
i2s->CON &= ~I2S_CON_RCHZCEN_Msk;
else
i2s->CON &= ~I2S_CON_LCHZCEN_Msk;
}
/**
* @brief Enable I2S TX DMA function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will set TXDMA bit of I2SCON register to transmit data with PDMA.
*/
#define I2S_ENABLE_TXDMA(i2s) ( (i2s)->CON |= I2S_CON_TXDMA_Msk )
/**
* @brief Disable I2S TX DMA function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear TXDMA bit of I2SCON register to disable TX DMA function.
*/
#define I2S_DISABLE_TXDMA(i2s) ( (i2s)->CON &= ~I2S_CON_TXDMA_Msk )
/**
* @brief Enable I2S RX DMA function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will set RXDMA bit of I2SCON register to receive data with PDMA.
*/
#define I2S_ENABLE_RXDMA(i2s) ( (i2s)->CON |= I2S_CON_RXDMA_Msk )
/**
* @brief Disable I2S RX DMA function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear RXDMA bit of I2SCON register to disable RX DMA function.
*/
#define I2S_DISABLE_RXDMA(i2s) ( (i2s)->CON &= ~I2S_CON_RXDMA_Msk )
/**
* @brief Enable I2S TX function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will set TXEN bit of I2SCON register to enable I2S TX function.
*/
#define I2S_ENABLE_TX(i2s) ( (i2s)->CON |= I2S_CON_TXEN_Msk )
/**
* @brief Disable I2S TX function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear TXEN bit of I2SCON register to disable I2S TX function.
*/
#define I2S_DISABLE_TX(i2s) ( (i2s)->CON &= ~I2S_CON_TXEN_Msk )
/**
* @brief Enable I2S RX function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will set RXEN bit of I2SCON register to enable I2S RX function.
*/
#define I2S_ENABLE_RX(i2s) ( (i2s)->CON |= I2S_CON_RXEN_Msk )
/**
* @brief Disable I2S RX function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear RXEN bit of I2SCON register to disable I2S RX function.
*/
#define I2S_DISABLE_RX(i2s) ( (i2s)->CON &= ~I2S_CON_RXEN_Msk )
/**
* @brief Enable TX Mute function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will set MUTE bit of I2SCON register to enable I2S TX mute function.
*/
#define I2S_ENABLE_TX_MUTE(i2s) ( (i2s)->CON |= I2S_CON_MUTE_Msk )
/**
* @brief Disable TX Mute function.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear MUTE bit of I2SCON register to disable I2S TX mute function.
*/
#define I2S_DISABLE_TX_MUTE(i2s) ( (i2s)->CON &= ~I2S_CON_MUTE_Msk )
/**
* @brief Clear TX FIFO.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear TX FIFO. The internal TX FIFO pointer will be reset to FIFO start point.
*/
#define I2S_CLR_TX_FIFO(i2s) ( (i2s)->CON |= I2S_CON_CLR_TXFIFO_Msk )
/**
* @brief Clear RX FIFO.
* @param[in] i2s The pointer of the specified I2S module.
* @return None
* @details This macro will clear RX FIFO. The internal RX FIFO pointer will be reset to FIFO start point.
*/
#define I2S_CLR_RX_FIFO(i2s) ( (i2s)->CON |= I2S_CON_CLR_RXFIFO_Msk )
/**
* @brief This function sets the recording source channel when mono mode is used.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32Ch Left or right channel. Valid values are:
* - \ref I2S_MONO_LEFT
* - \ref I2S_MONO_RIGHT
* @return None
* @details This function selects the recording source channel of monaural mode.
*/
static __INLINE void I2S_SET_MONO_RX_CHANNEL(I2S_T *i2s, uint32_t u32Ch)
{
u32Ch == I2S_MONO_LEFT ?
(i2s->CON |= I2S_CON_RXLCH_Msk) :
(i2s->CON &= ~I2S_CON_RXLCH_Msk);
}
/**
* @brief Write data to I2S TX FIFO.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32Data The value written to TX FIFO.
* @return None
* @details This macro will write a value to TX FIFO.
*/
#define I2S_WRITE_TX_FIFO(i2s, u32Data) ( (i2s)->TXFIFO = (u32Data) )
/**
* @brief Read RX FIFO.
* @param[in] i2s The pointer of the specified I2S module.
* @return The value read from RX FIFO.
* @details This function will return a value read from RX FIFO.
*/
#define I2S_READ_RX_FIFO(i2s) ( (i2s)->RXFIFO )
/**
* @brief Get the interrupt flag.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32Mask The mask value for all interrupt flags. Valid values are:
* - \ref I2S_STATUS_LZCF_Msk
* - \ref I2S_STATUS_RZCF_Msk
* - \ref I2S_STATUS_TXTHF_Msk
* - \ref I2S_STATUS_TXOVF_Msk
* - \ref I2S_STATUS_TXUDF_Msk
* - \ref I2S_STATUS_RXTHF_Msk
* - \ref I2S_STATUS_RXOVF_Msk
* - \ref I2S_STATUS_RXUDF_Msk
* - \ref I2S_STATUS_I2STXINT_Msk
* - \ref I2S_STATUS_I2SRXINT_Msk
* - \ref I2S_STATUS_I2SINT_Msk
* @return The interrupt flags specified by the u32mask parameter.
* @details This macro will return the combination flags of I2SSTATUS register. The flags are specified by the u32mask parameter.
*/
#define I2S_GET_INT_FLAG(i2s, u32Mask) ( (i2s)->STATUS & (u32Mask) )
/**
* @brief Clear the interrupt flag.
* @param[in] i2s The pointer of the specified I2S module.
* @param[in] u32Mask The mask value for all interrupt flags. Valid values are:
* - \ref I2S_STATUS_LZCF_Msk
* - \ref I2S_STATUS_RZCF_Msk
* - \ref I2S_STATUS_TXOVF_Msk
* - \ref I2S_STATUS_TXUDF_Msk
* - \ref I2S_STATUS_RXOVF_Msk
* - \ref I2S_STATUS_RXUDF_Msk
* @return None
* @details This macro will clear the interrupt flags specified by the u32mask parameter.
*/
#define I2S_CLR_INT_FLAG(i2s, u32Mask) ( (i2s)->STATUS = (u32Mask) )
/**
* @brief Get transmit FIFO level
* @param[in] i2s The pointer of the specified I2S module.
* @return TX FIFO level
* @details This macro will return the number of available words in TX FIFO.
*/
#define I2S_GET_TX_FIFO_LEVEL(i2s) ( (((i2s)->STATUS & I2S_STATUS_TX_LEVEL_Msk) >> I2S_STATUS_TX_LEVEL_Pos) & 0xF )
/**
* @brief Get receive FIFO level
* @param[in] i2s The pointer of the specified I2S module.
* @return RX FIFO level
* @details This macro will return the number of available words in RX FIFO.
*/
#define I2S_GET_RX_FIFO_LEVEL(i2s) ( (((i2s)->STATUS & I2S_STATUS_RX_LEVEL_Msk) >> I2S_STATUS_RX_LEVEL_Pos) & 0xF )
/* Function prototype declaration */
uint32_t I2S_Open(I2S_T *i2s, uint32_t u32MasterSlave, uint32_t u32SampleRate, uint32_t u32WordWidth, uint32_t u32Channels, uint32_t u32DataFormat);
void I2S_Close(I2S_T *i2s);
void I2S_EnableInt(I2S_T *i2s, uint32_t u32Mask);
void I2S_DisableInt(I2S_T *i2s, uint32_t u32Mask);
uint32_t I2S_EnableMCLK(I2S_T *i2s, uint32_t u32BusClock);
void I2S_DisableMCLK(I2S_T *i2s);
/*@}*/ /* end of group I2S_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group I2S_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif
/*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/
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