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/*
* stm-uart.h
* ---------
* Functions and defines to use the UART.
*
* Copyright (c) 2015, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __STM32_UART_H
#define __STM32_UART_H
#include "stm32f4xx_hal.h"
#define USART_MGMT_BAUD_RATE 921600
#define USART_USER_BAUD_RATE 921600
extern UART_HandleTypeDef huart_mgmt;
extern UART_HandleTypeDef huart_user;
#define STM_UART_USER &huart_user
#define STM_UART_MGMT &huart_mgmt
/* These are only exposed because they're used in the DMA IRQ handler code.
* Pretend you never saw them.
*/
extern DMA_HandleTypeDef hdma_usart_mgmt_rx;
extern DMA_HandleTypeDef hdma_usart_user_rx;
extern void uart_init(void);
/* Default UART is MGMT; don't change it unless you need to.
*/
extern UART_HandleTypeDef* default_uart;
extern void uart_set_default(UART_HandleTypeDef *uart);
/* Send and receive to/from an explicit UART. For the most part, you
* shouldn't need to call these directly, but can use the default_uart
* macros below.
*/
extern HAL_StatusTypeDef uart_send_char2(UART_HandleTypeDef *uart, uint8_t ch);
extern HAL_StatusTypeDef uart_recv_char2(UART_HandleTypeDef *uart, uint8_t *cp, uint32_t timeout);
extern HAL_StatusTypeDef uart_send_string2(UART_HandleTypeDef *uart, const char *s);
extern HAL_StatusTypeDef uart_send_number2(UART_HandleTypeDef *uart, uint32_t num, uint8_t digits, uint8_t radix);
extern HAL_StatusTypeDef uart_send_bytes2(UART_HandleTypeDef *uart, uint8_t *buf, size_t len);
extern HAL_StatusTypeDef uart_receive_bytes2(UART_HandleTypeDef *uart, uint8_t *buf, size_t len, uint32_t timeout);
extern HAL_StatusTypeDef uart_send_hexdump2(UART_HandleTypeDef *uart, const uint8_t *buf,
const uint8_t start_offset, const uint8_t end_offset);
#define uart_send_char(c) uart_send_char2(default_uart, c)
#define uart_recv_char(cp, t) uart_recv_char2(default_uart, cp, t)
#define uart_send_string(s) uart_send_string2(default_uart, s)
#define uart_send_bytes(b, l) uart_send_bytes2(default_uart, b, l)
#define uart_receive_bytes(b, l, t) uart_receive_bytes2(default_uart, b, l, t)
#define uart_send_number(n, d, r) uart_send_number2(default_uart, n, d, r)
#define uart_send_hexdump(b, s, e) uart_send_hexdump2(default_uart, b, s, e)
#define uart_send_binary(num, bits) uart_send_number(num, bits, 2)
#define uart_send_integer(num, digits) uart_send_number(num, digits, 10)
#define uart_send_hex(num, digits) uart_send_number(num, digits, 16)
#endif /* __STM32_UART_H */
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