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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright (c) 2016, Toradex AG
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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.
*/
#ifndef __LPUART_VF6XX_H__
#define __LPUART_VF6XX_H__
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include "device_imx.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/*! @brief UART module initialize structure. */
typedef struct _uart_init_config
{
uint32_t clockRate; /*!< Current UART module clock freq. */
uint32_t baudRate; /*!< Desired UART baud rate. */
uint32_t wordLength; /*!< Data bits in one frame. */
uint32_t parity; /*!< Parity error check mode of this module. */
} uart_init_config_t;
/*!
* @brief UART number of data bits in a character.
*/
enum _uart_word_length
{
uartWordLength8Bits = 0x0,
uartWordLength9Bits = UART_UCR1_M,
};
/*!
* @brief UART parity mode.
*/
enum _uart_partity_mode
{
uartParityDisable = 0x0,
uartParityEven = UART_UCR1_PE,
uartParityOdd = UART_UCR1_PE | UART_UCR1_PT
};
/*******************************************************************************
* API
******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
/*!
* @name UART Initialization and Configuration functions
* @{
*/
/*!
* @brief Initialize UART module with given initialize structure.
*
* @param base UART base pointer.
* @param initConfig UART initialize structure(see uart_init_config_t above).
*/
void LPUART_Init(UART_Type* base, uart_init_config_t* initConfig);
/*FUNCTION**********************************************************************
*
* Function Name : LPUART_SetParity
* Description : This function configures uart module parity mode.
*
*END**************************************************************************/
static inline void LPUART_SetParity(UART_Type* base, uint32_t parityMode)
{
UART_C1_REG(base) = parityMode;
}
/*!
* @brief This function is used to set the baud rate of UART Module.
*
* @param base UART base pointer.
* @param clockRate UART module clock frequency.
* @param baudRate Desired UART module baud rate.
*/
void LPUART_SetBaudRate(UART_Type* base, uint32_t clockRate, uint32_t baudRate);
/*!
* @brief This function is used to send data.
*
* @param base UART base pointer.
* @param data Data to be set through Uart module.
*/
static inline void LPUART_PutChar(UART_Type* base, uint8_t data)
{
UART_D_REG(base) = data;
}
/*!
* @brief This function is used to receive data.
*
* @param base UART base pointer.
* @return The data received from UART module.
*/
static inline uint8_t LPUART_GetChar(UART_Type* base)
{
return UART_D_REG(base);
}
static inline void LPUART_Enable(UART_Type* base)
{
UART_C2_REG(base) |= (UART_UCR2_TE | UART_UCR2_RE);
}
static inline void LPUART_Disable(UART_Type* base)
{
UART_C2_REG(base) &= ~(UART_UCR2_TE | UART_UCR2_RE);
}
static inline void LPUART_WaitRecvReady(UART_Type* base)
{
/* Wait until the data is ready to be received. */
while ((UART_S1_REG(base) & UART_S1_RDRF) == 0);
}
static inline uint8_t LPUART_RecvBlocking(UART_Type* base)
{
LPUART_WaitRecvReady(base);
return LPUART_GetChar(base);
}
static inline void LPUART_WaitSendReady(UART_Type* base)
{
/* Wait until the data has been transferred into the shift register. */
while ((UART_S1_REG(base) & UART_S1_TC) == 0);
}
static inline void LPUART_SendBlocking(UART_Type* base, uint8_t data)
{
LPUART_WaitSendReady(base);
LPUART_PutChar(base, data);
}
#ifdef __cplusplus
}
#endif
/*! @}*/
#endif /* __LPUART_VF6XX_H__ */
/*******************************************************************************
* EOF
******************************************************************************/
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