/**
 * @file    bsp_uart.h
 * @brief   UART1 communication driver (DMA + IDLE interrupt for MQTT)
 */

#ifndef __BSP_UART_H
#define __BSP_UART_H

#include "main.h"
#include <stdint.h>
#include <stdbool.h>

#define UART1_RX_BUF_SIZE  256

/* Exported functions prototypes */

void BSP_UART1_Init(void);

/**
 * @brief  Send data via UART1 (blocking)
 */
uint16_t BSP_UART1_Send(uint8_t *data, uint16_t len);

/**
 * @brief  Send string via UART1 (blocking)
 */
uint16_t BSP_UART1_SendString(const char *str);

/**
 * @brief  Get received data length
 */
uint16_t BSP_UART1_GetRxLen(void);

/**
 * @brief  Read data from rx buffer
 */
uint16_t BSP_UART1_Read(uint8_t *buf, uint16_t len);

/**
 * @brief  Clear rx buffer (restart DMA)
 */
void BSP_UART1_ClearRxBuf(void);

/**
 * @brief  Check if data received
 */
bool BSP_UART1_IsDataReceived(void);

/**
 * @brief  Process received data (call in main loop)
 */
void BSP_UART1_Process(void);

/**
 * @brief  IDLE interrupt handler (call from ISR)
 */
void BSP_UART1_IDLE_IRQHandler(void);

#endif