/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 */

#include <rthw.h>
#include <rtconfig.h>

#ifndef RT_USING_FINSH
#error Please uncomment the line <#include "finsh_config.h"> in the rtconfig.h 
#endif

#ifdef RT_USING_FINSH

//RT_WEAK char rt_hw_console_getchar(void)
//{
//    /* Note: the initial value of ch must < 0 */
//    int ch = -1;
//
//#error "TODO 4: Read a char from the uart and assign it to 'ch'."
//
//    return ch;
//}
#include "main.h"
#include "usart.h"

void rt_hw_console_output(const char *str)
{
    rt_size_t i = 0, size = 0;
    char a = '\r';

    rt_enter_critical();
    size = rt_strlen(str);
    
    for (i = 0; i < size; i++)
    {
        if (*(str + i) == '\n')
            HAL_UART_Transmit(&huart1, (uint8_t *)&a, 1, 1);

        HAL_UART_Transmit(&huart1, (uint8_t *)(str + i), 1, 1);
    }
    
    rt_exit_critical();
}

char rt_hw_console_getchar(void)
{
    if (__HAL_UART_GET_FLAG(&huart1, UART_FLAG_RXNE) != RESET)
    {
        return huart1.Instance->DR & 0xff;
    }
    
    if(__HAL_UART_GET_FLAG(&huart1, UART_FLAG_ORE) != RESET)
    {
        __HAL_UART_CLEAR_OREFLAG(&huart1);
    }
    
    rt_thread_mdelay(10);
    return -1;
}

#endif /* RT_USING_FINSH */