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rt-thread-official/bsp/nuvoton_m451/Libraries/StdDriver/inc/uart.h

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/******************************************************************************
* @file uart.h
* @version V3.00
* $Revision: 36 $
* $Date: 15/08/11 10:26a $
* @brief M451 series UART driver header file
*
* @note
* Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __UART_H__
#define __UART_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup UART_Driver UART Driver
@{
*/
/** @addtogroup UART_EXPORTED_CONSTANTS UART Exported Constants
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* UART FIFO size constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART0_FIFO_SIZE 16 /*!< UART0 supports separated receive/transmit 16/16 bytes entry FIFO */
#define UART1_FIFO_SIZE 16 /*!< UART1 supports separated receive/transmit 16/16 bytes entry FIFO */
#define UART2_FIFO_SIZE 16 /*!< UART2 supports separated receive/transmit 16/16 bytes entry FIFO */
#define UART3_FIFO_SIZE 16 /*!< UART3 supports separated receive/transmit 16/16 bytes entry FIFO */
/*---------------------------------------------------------------------------------------------------------*/
/* UART_FIFO constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_FIFO_RFITL_1BYTE (0x0 << UART_FIFO_RFITL_Pos) /*!< UART_FIFO setting to set RX FIFO Trigger Level to 1 byte */
#define UART_FIFO_RFITL_4BYTES (0x1 << UART_FIFO_RFITL_Pos) /*!< UART_FIFO setting to set RX FIFO Trigger Level to 4 bytes */
#define UART_FIFO_RFITL_8BYTES (0x2 << UART_FIFO_RFITL_Pos) /*!< UART_FIFO setting to set RX FIFO Trigger Level to 8 bytes */
#define UART_FIFO_RFITL_14BYTES (0x3 << UART_FIFO_RFITL_Pos) /*!< UART_FIFO setting to set RX FIFO Trigger Level to 14 bytes */
#define UART_FIFO_RTSTRGLV_1BYTE (0x0 << UART_FIFO_RTSTRGLV_Pos) /*!< UART_FIFO setting to set RTS Trigger Level to 1 byte */
#define UART_FIFO_RTSTRGLV_4BYTES (0x1 << UART_FIFO_RTSTRGLV_Pos) /*!< UART_FIFO setting to set RTS Trigger Level to 4 bytes */
#define UART_FIFO_RTSTRGLV_8BYTES (0x2 << UART_FIFO_RTSTRGLV_Pos) /*!< UART_FIFO setting to set RTS Trigger Level to 8 bytes */
#define UART_FIFO_RTSTRGLV_14BYTES (0x3 << UART_FIFO_RTSTRGLV_Pos) /*!< UART_FIFO setting to set RTS Trigger Level to 14 bytes */
/*---------------------------------------------------------------------------------------------------------*/
/* UART_LINE constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_WORD_LEN_5 (0) /*!< UART_LINE setting to set UART word length to 5 bits */
#define UART_WORD_LEN_6 (1) /*!< UART_LINE setting to set UART word length to 6 bits */
#define UART_WORD_LEN_7 (2) /*!< UART_LINE setting to set UART word length to 7 bits */
#define UART_WORD_LEN_8 (3) /*!< UART_LINE setting to set UART word length to 8 bits */
#define UART_PARITY_NONE (0x0 << UART_LINE_PBE_Pos) /*!< UART_LINE setting to set UART as no parity */
#define UART_PARITY_ODD (0x1 << UART_LINE_PBE_Pos) /*!< UART_LINE setting to set UART as odd parity */
#define UART_PARITY_EVEN (0x3 << UART_LINE_PBE_Pos) /*!< UART_LINE setting to set UART as even parity */
#define UART_PARITY_MARK (0x5 << UART_LINE_PBE_Pos) /*!< UART_LINE setting to keep parity bit as '1' */
#define UART_PARITY_SPACE (0x7 << UART_LINE_PBE_Pos) /*!< UART_LINE setting to keep parity bit as '0' */
#define UART_STOP_BIT_1 (0x0 << UART_LINE_NSB_Pos) /*!< UART_LINE setting for one stop bit */
#define UART_STOP_BIT_1_5 (0x1 << UART_LINE_NSB_Pos) /*!< UART_LINE setting for 1.5 stop bit when 5-bit word length */
#define UART_STOP_BIT_2 (0x1 << UART_LINE_NSB_Pos) /*!< UART_LINE setting for two stop bit when 6, 7, 8-bit word length */
/*---------------------------------------------------------------------------------------------------------*/
/* UART RTS ACTIVE LEVEL constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_RTS_IS_LOW_LEV_ACTIVE (0x1 << UART_MODEM_RTSACTLV_Pos) /*!< Set RTS is Low Level Active */
#define UART_RTS_IS_HIGH_LEV_ACTIVE (0x0 << UART_MODEM_RTSACTLV_Pos) /*!< Set RTS is High Level Active */
/*---------------------------------------------------------------------------------------------------------*/
/* UART_IRDA constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_IRDA_TXEN (0x1 << UART_IRDA_TXEN_Pos) /*!< Set IrDA function Tx mode */
#define UART_IRDA_RXEN (0x0 << UART_IRDA_TXEN_Pos) /*!< Set IrDA function Rx mode */
/*---------------------------------------------------------------------------------------------------------*/
/* UART_FUNCSEL constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_FUNCSEL_UART (0x0 << UART_FUNCSEL_FUNCSEL_Pos) /*!< UART_FUNCSEL setting to set UART Function (Default) */
#define UART_FUNCSEL_LIN (0x1 << UART_FUNCSEL_FUNCSEL_Pos) /*!< UART_FUNCSEL setting to set LIN Function */
#define UART_FUNCSEL_IrDA (0x2 << UART_FUNCSEL_FUNCSEL_Pos) /*!< UART_FUNCSEL setting to set IrDA Function */
#define UART_FUNCSEL_RS485 (0x3 << UART_FUNCSEL_FUNCSEL_Pos) /*!< UART_FUNCSEL setting to set RS485 Function */
/*---------------------------------------------------------------------------------------------------------*/
/* UART_LINCTL constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_LINCTL_BRKFL(x) (((x)-1) << UART_LINCTL_BRKFL_Pos) /*!< UART_LINCTL setting to set LIN Break Field Length, x = 10 ~ 15, default value is 12 */
#define UART_LINCTL_BSL(x) (((x)-1) << UART_LINCTL_BSL_Pos) /*!< UART_LINCTL setting to set LIN Break/Sync Delimiter Length, x = 1 ~ 4 */
#define UART_LINCTL_HSEL_BREAK (0x0UL << UART_LINCTL_HSEL_Pos) /*!< UART_LINCTL setting to set LIN Header Select to break field */
#define UART_LINCTL_HSEL_BREAK_SYNC (0x1UL << UART_LINCTL_HSEL_Pos) /*!< UART_LINCTL setting to set LIN Header Select to break field and sync field */
#define UART_LINCTL_HSEL_BREAK_SYNC_ID (0x2UL << UART_LINCTL_HSEL_Pos) /*!< UART_LINCTL setting to set LIN Header Select to break field, sync field and ID field*/
#define UART_LINCTL_PID(x) ((x) << UART_LINCTL_PID_Pos) /*!< UART_LINCTL setting to set LIN PID value */
/*---------------------------------------------------------------------------------------------------------*/
/* UART BAUDRATE MODE constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_BAUD_MODE0 (0) /*!< Set UART Baudrate Mode is Mode0 */
#define UART_BAUD_MODE2 (UART_BAUD_BAUDM1_Msk | UART_BAUD_BAUDM0_Msk) /*!< Set UART Baudrate Mode is Mode2 */
/*@}*/ /* end of group UART_EXPORTED_CONSTANTS */
/** @addtogroup UART_EXPORTED_FUNCTIONS UART Exported Functions
@{
*/
/**
* @brief Calculate UART baudrate mode0 divider
*
* @param[in] u32SrcFreq UART clock frequency
* @param[in] u32BaudRate Baudrate of UART module
*
* @return UART baudrate mode0 divider
*
* @details This macro calculate UART baudrate mode0 divider.
*/
#define UART_BAUD_MODE0_DIVIDER(u32SrcFreq, u32BaudRate) ((((u32SrcFreq) + ((u32BaudRate)*8)) / (u32BaudRate) >> 4)-2)
/**
* @brief Calculate UART baudrate mode2 divider
*
* @param[in] u32SrcFreq UART clock frequency
* @param[in] u32BaudRate Baudrate of UART module
*
* @return UART baudrate mode2 divider
*
* @details This macro calculate UART baudrate mode2 divider.
*/
#define UART_BAUD_MODE2_DIVIDER(u32SrcFreq, u32BaudRate) ((((u32SrcFreq) + ((u32BaudRate)/2)) / (u32BaudRate))-2)
/**
* @brief Write UART data
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u8Data Data byte to transmit.
*
* @return None
*
* @details This macro write Data to Tx data register.
*/
#define UART_WRITE(uart, u8Data) ((uart)->DAT = (u8Data))
/**
* @brief Read UART data
*
* @param[in] uart The pointer of the specified UART module
*
* @return The oldest data byte in RX FIFO.
*
* @details This macro read Rx data register.
*/
#define UART_READ(uart) ((uart)->DAT)
/**
* @brief Get Tx empty
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Tx FIFO is not empty
* @retval >=1 Tx FIFO is empty
*
* @details This macro get Transmitter FIFO empty register value.
*/
#define UART_GET_TX_EMPTY(uart) ((uart)->FIFOSTS & UART_FIFOSTS_TXEMPTY_Msk)
/**
* @brief Get Rx empty
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Rx FIFO is not empty
* @retval >=1 Rx FIFO is empty
*
* @details This macro get Receiver FIFO empty register value.
*/
#define UART_GET_RX_EMPTY(uart) ((uart)->FIFOSTS & UART_FIFOSTS_RXEMPTY_Msk)
/**
* @brief Check specified uart port transmission is over.
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Tx transmission is not over
* @retval 1 Tx transmission is over
*
* @details This macro return Transmitter Empty Flag register bit value.
* It indicates if specified uart port transmission is over nor not.
*/
#define UART_IS_TX_EMPTY(uart) (((uart)->FIFOSTS & UART_FIFOSTS_TXEMPTYF_Msk) >> UART_FIFOSTS_TXEMPTYF_Pos)
/**
* @brief Wait specified uart port transmission is over
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro wait specified uart port transmission is over.
*/
#define UART_WAIT_TX_EMPTY(uart) while(!((((uart)->FIFOSTS) & UART_FIFOSTS_TXEMPTYF_Msk) >> UART_FIFOSTS_TXEMPTYF_Pos))
/**
* @brief Check RX is ready or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 The number of bytes in the RX FIFO is less than the RFITL
* @retval 1 The number of bytes in the RX FIFO equals or larger than RFITL
*
* @details This macro check receive data available interrupt flag is set or not.
*/
#define UART_IS_RX_READY(uart) (((uart)->INTSTS & UART_INTSTS_RDAIF_Msk)>>UART_INTSTS_RDAIF_Pos)
/**
* @brief Check TX FIFO is full or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 1 TX FIFO is full
* @retval 0 TX FIFO is not full
*
* @details This macro check TX FIFO is full or not.
*/
#define UART_IS_TX_FULL(uart) (((uart)->FIFOSTS & UART_FIFOSTS_TXFULL_Msk)>>UART_FIFOSTS_TXFULL_Pos)
/**
* @brief Check RX FIFO is full or not
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 1 RX FIFO is full
* @retval 0 RX FIFO is not full
*
* @details This macro check RX FIFO is full or not.
*/
#define UART_IS_RX_FULL(uart) (((uart)->FIFOSTS & UART_FIFOSTS_RXFULL_Msk)>>UART_FIFOSTS_RXFULL_Pos)
/**
* @brief Get Tx full register value
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Tx FIFO is not full.
* @retval >=1 Tx FIFO is full.
*
* @details This macro get Tx full register value.
*/
#define UART_GET_TX_FULL(uart) ((uart)->FIFOSTS & UART_FIFOSTS_TXFULL_Msk)
/**
* @brief Get Rx full register value
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Rx FIFO is not full.
* @retval >=1 Rx FIFO is full.
*
* @details This macro get Rx full register value.
*/
#define UART_GET_RX_FULL(uart) ((uart)->FIFOSTS & UART_FIFOSTS_RXFULL_Msk)
/**
* @brief Enable specified UART interrupt
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntSel Interrupt type select
* - \ref UART_INTEN_ABRIEN_Msk : Auto baud rate interrupt
* - \ref UART_INTEN_WKCTSIEN_Msk : CTS wakeup interrupt
* - \ref UART_INTEN_WKDATIEN_Msk : Data wakeup interrupt
* - \ref UART_INTEN_LINIEN_Msk : Lin bus interrupt
* - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt
* - \ref UART_INTEN_RXTOIEN_Msk : Rx time-out interrupt
* - \ref UART_INTEN_MODEMIEN_Msk : Modem interrupt
* - \ref UART_INTEN_RLSIEN_Msk : Rx Line status interrupt
* - \ref UART_INTEN_THREIEN_Msk : Tx empty interrupt
* - \ref UART_INTEN_RDAIEN_Msk : Rx ready interrupt
*
* @return None
*
* @details This macro enable specified UART interrupt.
*/
#define UART_ENABLE_INT(uart, u32eIntSel) ((uart)->INTEN |= (u32eIntSel))
/**
* @brief Disable specified UART interrupt
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntSel Interrupt type select
* - \ref UART_INTEN_ABRIEN_Msk : Auto baud rate interrupt
* - \ref UART_INTEN_WKCTSIEN_Msk : CTS wakeup interrupt
* - \ref UART_INTEN_WKDATIEN_Msk : Data wakeup interrupt
* - \ref UART_INTEN_LINIEN_Msk : Lin bus interrupt
* - \ref UART_INTEN_BUFERRIEN_Msk : Buffer Error interrupt
* - \ref UART_INTEN_RXTOIEN_Msk : Rx time-out interrupt
* - \ref UART_INTEN_MODEMIEN_Msk : Modem status interrupt
* - \ref UART_INTEN_RLSIEN_Msk : Receive Line status interrupt
* - \ref UART_INTEN_THREIEN_Msk : Tx empty interrupt
* - \ref UART_INTEN_RDAIEN_Msk : Rx ready interrupt
*
* @return None
*
* @details This macro enable specified UART interrupt.
*/
#define UART_DISABLE_INT(uart, u32eIntSel) ((uart)->INTEN &= ~ (u32eIntSel))
/**
* @brief Get specified interrupt flag/status
*
* @param[in] uart The pointer of the specified UART module
* @param[in] u32eIntTypeFlag Interrupt Type Flag, should be
* - \ref UART_INTSTS_HWBUFEINT_Msk : In DMA Mode, Buffer Error Interrupt Indicator
* - \ref UART_INTSTS_HWTOINT_Msk : In DMA Mode, Time-out Interrupt Indicator
* - \ref UART_INTSTS_HWMODINT_Msk : In DMA Mode, MODEM Status Interrupt Indicator
* - \ref UART_INTSTS_HWRLSINT_Msk : In DMA Mode, Receive Line Status Interrupt Indicator
* - \ref UART_INTSTS_HWBUFEIF_Msk : In DMA Mode, Buffer Error Interrupt Flag
* - \ref UART_INTSTS_HWTOIF_Msk : In DMA Mode, Time-out Interrupt Flag
* - \ref UART_INTSTS_HWMODIF_Msk : In DMA Mode, MODEM Interrupt Flag
* - \ref UART_INTSTS_HWRLSIF_Msk : In DMA Mode, Receive Line Status Flag
* - \ref UART_INTSTS_LININT_Msk : LIN Bus Interrupt Indicator
* - \ref UART_INTSTS_BUFERRINT_Msk : Buffer Error Interrupt Indicator
* - \ref UART_INTSTS_RXTOINT_Msk : Time-out Interrupt Indicator
* - \ref UART_INTSTS_MODEMINT_Msk : Modem Status Interrupt Indicator
* - \ref UART_INTSTS_RLSINT_Msk : Receive Line Status Interrupt Indicator
* - \ref UART_INTSTS_THREINT_Msk : Transmit Holding Register Empty Interrupt Indicator
* - \ref UART_INTSTS_RDAINT_Msk : Receive Data Available Interrupt Indicator
* - \ref UART_INTSTS_LINIF_Msk : LIN Bus Flag
* - \ref UART_INTSTS_BUFERRIF_Msk : Buffer Error Interrupt Flag
* - \ref UART_INTSTS_RXTOIF_Msk : Rx Time-out Interrupt Flag
* - \ref UART_INTSTS_MODEMIF_Msk : Modem Interrupt Flag
* - \ref UART_INTSTS_RLSIF_Msk : Receive Line Status Interrupt Flag
* - \ref UART_INTSTS_THREIF_Msk : Tx Empty Interrupt Flag
* - \ref UART_INTSTS_RDAIF_Msk : Rx Ready Interrupt Flag
*
* @retval 0 The specified interrupt is not happened.
* 1 The specified interrupt is happened.
*
* @details This macro get specified interrupt flag or interrupt indicator status.
*/
#define UART_GET_INT_FLAG(uart,u32eIntTypeFlag) (((uart)->INTSTS & (u32eIntTypeFlag))?1:0)
/**
* @brief Set RTS pin to low
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro set RTS pin to low.
*/
__STATIC_INLINE void UART_CLEAR_RTS(UART_T* uart)
{
uart->MODEM |= UART_MODEM_RTSACTLV_Msk;
uart->MODEM &= ~UART_MODEM_RTS_Msk;
}
/**
* @brief Set RTS pin to high
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro set RTS pin to high.
*/
__STATIC_INLINE void UART_SET_RTS(UART_T* uart)
{
uart->MODEM |= UART_MODEM_RTSACTLV_Msk | UART_MODEM_RTS_Msk;
}
/**
* @brief Clear RS-485 Address Byte Detection Flag
*
* @param[in] uart The pointer of the specified UART module
*
* @return None
*
* @details This macro clear RS-485 address byte detection flag.
*/
#define UART_RS485_CLEAR_ADDR_FLAG(uart) ((uart)->FIFOSTS = UART_FIFOSTS_ADDRDETF_Msk)
/**
* @brief Get RS-485 Address Byte Detection Flag
*
* @param[in] uart The pointer of the specified UART module
*
* @retval 0 Receiver detects a data that is not an address bit.
* @retval 1 Receiver detects a data that is an address bit.
*
* @details This macro get RS-485 address byte detection flag.
*/
#define UART_RS485_GET_ADDR_FLAG(uart) (((uart)->FIFOSTS & UART_FIFOSTS_ADDRDETF_Msk) >> UART_FIFOSTS_ADDRDETF_Pos)
void UART_ClearIntFlag(UART_T* uart , uint32_t u32InterruptFlag);
void UART_Close(UART_T* uart);
void UART_DisableFlowCtrl(UART_T* uart);
void UART_DisableInt(UART_T* uart, uint32_t u32InterruptFlag);
void UART_EnableFlowCtrl(UART_T* uart);
void UART_EnableInt(UART_T* uart, uint32_t u32InterruptFlag);
void UART_Open(UART_T* uart, uint32_t u32baudrate);
uint32_t UART_Read(UART_T* uart, uint8_t *pu8RxBuf, uint32_t u32ReadBytes);
void UART_SetLine_Config(UART_T* uart, uint32_t u32baudrate, uint32_t u32data_width, uint32_t u32parity, uint32_t u32stop_bits);
void UART_SetTimeoutCnt(UART_T* uart, uint32_t u32TOC);
void UART_SelectIrDAMode(UART_T* uart, uint32_t u32Buadrate, uint32_t u32Direction);
void UART_SelectRS485Mode(UART_T* uart, uint32_t u32Mode, uint32_t u32Addr);
void UART_SelectLINMode(UART_T* uart, uint32_t u32Mode, uint32_t u32BreakLength);
uint32_t UART_Write(UART_T* uart, uint8_t *pu8TxBuf, uint32_t u32WriteBytes);
/*@}*/ /* end of group UART_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group UART_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif //__UART_H__
/*** (C) COPYRIGHT 2013~2015 Nuvoton Technology Corp. ***/
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