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dianjixz
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
/*
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* Copyright(C), 2020-2023, Red Hat Inc.
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* File name:
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* Author: dianjixz
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* Version: v 1.0.0
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* Date:
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* Description:
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* Function List:
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* History:
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*/
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#ifndef __LINUX_UART_H
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#define __LINUX_UART_H
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#include "stdint.h"
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#if __cplusplus
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extern "C"
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{
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#endif
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#define PRINF_HEX_ARR(str,buf,len)\
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do{\
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char *buff = (char *)buf;\
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printf("\e[32m[%s](%d):\e[0m", str, len);\
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for (int i = 0;i < len; ++i)\
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{\
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printf("0x%.2X ", buff[i] & 0xff);\
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}\
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printf("\r\n");\
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} while (0);
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typedef struct{
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int baud; // UART baud rate. 115200
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int data_bits; // UART data bits. 8
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int stop_bits; // UART stop bits. 1
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char parity; // parity. 'n'
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int wait_flage; // wait! 0
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}uart_t;
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/**
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* @brief init uart
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* @note
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* @param [in] dev device name
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* @param [in] param struct uart_t pointer
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* @retval [return] [>0] fd index
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* @retval [return] [<=0] fail code
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*/
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int linux_uart_init(char* dev, void* param);
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/**
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* @brief close uart
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* @note
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* @param [in] fd fd index
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* @retval
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*/
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void linux_uart_deinit(int fd);
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/**
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* @brief Read data from UART.
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* @note
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* @param [in] fd fd index
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* @param [in] cnt buff size
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* @param [in] buf buff pointer
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* @retval [return] [>0] The size of the read data.
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* @retval [return] [<0] Read failure code.
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*/
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int linux_uart_read(int fd, int cnt, void* buf);
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/**
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* @brief Send data from UART.
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* @note
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* @param [in] fd fd index
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* @param [in] cnt buff size
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* @param [in] buf buff pointer
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* @retval [return] [>0] The size of the sent data.
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* @retval [return] [<0] Send failure code.
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*/
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int linux_uart_write(int fd, int cnt, void* buf);
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#if __cplusplus
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}
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#endif
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#endif /* __LINUX_UART_H */
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