307 lines
6.6 KiB
C
307 lines
6.6 KiB
C
#include "uart_dev.h"
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#include <stdio.h>
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#include <stdarg.h>
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#include "timer.h"
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#include "gpio.h"
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extern UART_HandleTypeDef huart1;
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extern UART_HandleTypeDef huart3;
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static void uart_init(uartIndex_e uart_index, int baud);
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static u_int8_t uart_putchar(device_handle device, char ch);
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device_handle g_term_uart_handle;
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device_handle g_rs485_uart_handle;
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device_handle uart_dev_init(uartIndex_e uart_index, uint8_t *buff, int buff_size);
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static u_int8_t term_in_buff[200];
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static u_int8_t rs485_in_buff[300];
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u_int8_t rs485_out_buff[100];
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static u_int8_t term_out_buff[100];
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/**
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* @brief 串口信息初始化，串口号及波特率.
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* @param uart_index 对应的硬件串口号
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* @param uart_baudrate 波特率
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*/
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uart_device_info uart_devices[]={
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[0] = {
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.init = 0,
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.uart_index = TERM_UART_INDEX,
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.uart_baudrate = 9600,
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},
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[1] = {
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.init = 0,
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.uart_index = RS485_UART_INDEX,
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.uart_baudrate = 9600,
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},
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};
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/**
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* @brief 初始化串口设备.
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* @param uart_index 初始化串口号
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* @param buff 串口循环buff地址
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* @param buff_size 串口循环buff对应大小
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* @retval 串口句柄
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*/
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device_handle uart_dev_init(uartIndex_e uart_index, uint8_t *buff, int buff_size)
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{
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int i = 0;
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for(; i < ELEMENT_OF(uart_devices); i++){
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if(uart_devices[i].uart_index == uart_index){
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if(!uart_devices[i].init){
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InitRingQueue(&uart_devices[i].uart_ring_queue, buff, buff_size);
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uart_init(uart_index, uart_devices[i].uart_baudrate);
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uart_devices[i].init = 1;
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}
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return (device_handle)(&uart_devices[i]);
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}
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}
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return 0;
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}
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/**
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* @brief 串口硬件初始化.
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* @param uart_index 串口号
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* @param baud 波特率
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* @retval None
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*/
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static void uart_init(uartIndex_e uart_index, int baud)
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{
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if(uart_index == TERM_UART_INDEX){
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// MX_USART1_UART_Init();
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MX_USART1_UART_Init(baud);
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}else if(uart_index == RS485_UART_INDEX){
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MX_USART3_UART_Init(baud);
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// MX_USART3_UART_Init();
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}
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}
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/**
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* @brief 关闭串口
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* @param uart_index 串口号
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* @retval None
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*/
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void uart_close(uartIndex_e uart_index)
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{
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if(uart_index == TERM_UART_INDEX){
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HAL_UART_MspDeInit(&huart1);
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}else if(uart_index == RS485_UART_INDEX){
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HAL_UART_MspDeInit(&huart3);
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}
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}
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/**
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* @brief 发送一个字节.
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* @param uart_index 串口号
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* @param ch 待发送字符
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* @retval 1 成功 0失败
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*/
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static u_int8_t uart_putchar(device_handle device, char ch)
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{
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int ret=HAL_ERROR;
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uart_device_info *device_info = (uart_device_info *)device;
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if((!device) || (!device_info->init))
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return 0;
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if(device_info->uart_index == TERM_UART_INDEX){
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ret= HAL_UART_Transmit(&huart1,(uint8_t*)&ch,1,10);
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}else if(device_info->uart_index == RS485_UART_INDEX){
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ret= HAL_UART_Transmit(&huart3,(uint8_t*)&ch,1,10);
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}
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if(ret == HAL_OK){
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return 1;
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}else{
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return 0;
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}
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}
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/**
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* @brief 发送字符串.
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* @param uart_index 串口号
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* @param str 待发送字符串地址
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* @retval None
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*/
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void uart_sendstr(device_handle device,char *str)
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{
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while ((*str) != (char )0u) {
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if (*str == ASCII_CHAR_LINE_FEED){
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uart_putchar(device, (ASCII_CHAR_CARRIAGE_RETURN));
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uart_putchar(device, ASCII_CHAR_LINE_FEED);
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str++;
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}else{
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uart_putchar(device, *str++);
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}
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}
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}
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/**
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* @brief 串口多字节发送.
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* @param device 串口句柄
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* @param data 待发送数据
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* @param len 待发送数据长度
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* @retval None
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*/
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void uart_dev_write(device_handle device, void *data, int len)
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{
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#if 0
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if(device == g_rs485_uart_handle){
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rs485_tx_enable();
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}
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#endif
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for (int i = 0; i < len; i++){
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uart_putchar(device, ((u_int8_t *)data)[i]);
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}
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#if 0
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if(device == g_rs485_uart_handle){
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rs485_rx_enable();
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}
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#endif
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}
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/**
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* @brief 判断串口设备循环buff是否有数据.
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* @param device 串口句柄
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* @retval 0 空 1有数据
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*/
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int uart_dev_char_present(device_handle device)
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{
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uart_device_info *device_info = (uart_device_info *)device;
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if((!device) || (!device_info->init))
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return 0;
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return !RingQueueEmpty(&device_info->uart_ring_queue);
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}
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/**
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* @brief 从串口设备循环buff读取一个数据.
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* @param device 串口句柄
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* @retval 读取到的字符
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*/
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char uart_dev_in_char(device_handle device)
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{
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uart_device_info *device_info = (uart_device_info *)device;
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char c = 0;
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if (uart_dev_char_present(device))
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OutRingQueue(&device_info->uart_ring_queue, (u_int8_t*)&c);
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return c;
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}
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/**
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* @brief 判断循环buff是否有数据.
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* @param ring_queue 循环buff地址
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* @retval 0 空 1有数据
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*/
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int ring_queue_dev_char_present(RingQueue *ring_queue)
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{
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return !RingQueueEmpty(ring_queue);
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}
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/**
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* @brief 从循环buff读取一个数据.
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* @param ring_queue 循环buff地址
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* @retval 读取到的字符
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*/
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char ring_queue_dev_in_char(RingQueue *ring_queue)
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{
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char c = 0;
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if (ring_queue_dev_char_present(ring_queue))
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OutRingQueue(ring_queue, (u_int8_t*)&c);
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return c;
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}
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/**999
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* @brief 调试串口 .
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* @param 可变参
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* @retval Null
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*/
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void term_printf(char *format, ...)
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{
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memset(term_out_buff, 0, sizeof(term_out_buff));
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va_list va_ptr;
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va_start(va_ptr, format);
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vsprintf((char*)term_out_buff, (char const *)format, va_ptr);
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va_end(va_ptr);
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uart_sendstr(g_term_uart_handle, (char*)term_out_buff);
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}
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#if 0
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/**
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* @brief 调试终端读取一行命令 .
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* @param
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* @param
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* @param
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* @retval 读取到的数据长度
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*/
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int term_uart_readln(u_int8_t *buff, int buff_size, u_int32_t timeout_ms)
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{
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int offset = 0;
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char c = 0;
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u_int32_t wait_timeout_flag = 0;
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buff_size--;
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if(timeout_ms){
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set_flag_timeout(timeout_ms, &wait_timeout_flag);
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}
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for(offset = 0; offset<buff_size; offset++){
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while((!uart_dev_char_present(g_term_uart_handle)) && (!wait_timeout_flag));
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if(wait_timeout_flag){
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break;
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}else{
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c = uart_dev_in_char(g_term_uart_handle);
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buff[offset] = c;
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// if(g_term_echo_on)
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// out_char(c); //回显
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if((c == '\n') || (c == '\r')){
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offset++;
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break;
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}
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}
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}
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if(timeout_ms)
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stop_timout();
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buff[offset] = '\0';
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return offset;
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}
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#endif
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/**
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* @brief 初始化调试串口.
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* @retval None
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*/
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void init_term_uart()
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{
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g_term_uart_handle = uart_dev_init(TERM_UART_INDEX, term_in_buff, sizeof(term_in_buff));
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}
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/**
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* @brief 初始化RS485串口.
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* @retval None
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*/
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void init_rs485_uart()
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{
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g_rs485_uart_handle = uart_dev_init(RS485_UART_INDEX, rs485_in_buff, sizeof(rs485_in_buff));
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}
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