text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2019 Lucian Copeland for Adafruit Industries
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #ifndef MICROPY_INCLUDED_STM32F4_COMMON_HAL_BUSIO_UART_H
  #define MICROPY_INCLUDED_STM32F4_COMMON_HAL_BUSIO_UART_H
  
  #include "common-hal/microcontroller/Pin.h"
  #include "stm32f4/periph.h"
  #include "stm32f4xx_hal.h" 
  
  #include "py/obj.h"
  #include "py/ringbuf.h"
  
  #ifndef UART_IRQPRI
  #define UART_IRQPRI       1
  #endif
  #ifndef UART_IRQSUB_PRI
  #define UART_IRQSUB_PRI    0
  #endif
  
  typedef struct {
      mp_obj_base_t base;
      UART_HandleTypeDef handle;
      IRQn_Type irq;
      const mcu_uart_tx_obj_t *tx;
      const mcu_uart_rx_obj_t *rx;
  
      ringbuf_t rbuf;
      uint8_t rx_char;
  
      uint32_t baudrate;
      uint32_t timeout_ms;
  } busio_uart_obj_t;
  
  void uart_reset(void);
  
  #endif // MICROPY_INCLUDED_STM32F4_COMMON_HAL_BUSIO_UART_H
  