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117 lines
2.6 KiB
117 lines
2.6 KiB
/*
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This file is part of VP-Digi.
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VP-Digi is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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VP-Digi is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with VP-Digi. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UART_H_
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#define UART_H_
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#define UARTBUFLEN 250
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#include "stm32f1xx.h"
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#include <stdint.h>
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typedef enum
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{
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MODE_KISS,
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MODE_TERM,
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MODE_MONITOR,
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} Uart_mode;
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typedef enum
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{
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DATA_KISS,
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DATA_TERM,
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DATA_NOTHING,
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} Uart_data_type;
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typedef struct
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{
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volatile USART_TypeDef *port; //UART peripheral
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uint32_t baudrate; //baudrate 1200-115200
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Uart_data_type rxflag; //rx status
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uint8_t txflag; //tx status (1 when transmitting)
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uint8_t bufrx[UARTBUFLEN]; //buffer for rx data
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uint16_t bufrxidx; //rx data buffer index
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uint8_t buftx[UARTBUFLEN]; //circular tx buffer
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uint16_t buftxrd, buftxwr; //tx buffer indexes
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Uart_mode mode; //uart mode
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uint8_t enabled;
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uint32_t kissTimer;
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} Uart;
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extern Uart uart1, uart2;
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/**
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* \brief Copy KISS frame(s) from input buffer to APRS TX buffer
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* \param[in] *buf Input buffer
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* \param[in] len Input buffer size
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*/
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uint8_t Uart_txKiss(uint8_t *buf, uint16_t len);
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/**
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* \brief Start buffer transmission
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* \param[in] *port UART
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*/
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void uart_transmitStart(Uart *port);
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/**
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* \brief Store byte in TX buffer
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* \param[in] *port UART
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* \param[in] data Data
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*/
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void uart_sendByte(Uart *port, uint8_t data);
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/**
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* \brief Store string in TX buffer
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* \apram[in] *port UART
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* \param[in] *data Buffer
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* \param[in] len Buffer length or 0 for null-terminated string
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*/
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void uart_sendString(Uart *port, uint8_t *data, uint16_t datalen);
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/**
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* \brief Store number (in ASCII format) in TX buffer
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* \param[in] *port UART
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* \param[in] n Number
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*/
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void uart_sendNumber(Uart *port, int32_t n);
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/**
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* \brief Initialize UART structures
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* \param[in] *port UART
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* \param[in] *uart Physical UART peripheral
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* \param[in] baud Baudrate
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*/
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void uart_init(Uart *port, USART_TypeDef *uart, uint32_t baud);
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/**
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* \brief Configure and enable/disable UART
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* \param[in] *port UART
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* \param[in] state 0 - disable, 1 - enable
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*/
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void uart_config(Uart *port, uint8_t state);
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/**
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* \brief Clear RX buffer and flags
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* \param[in] *port UART
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*/
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void uart_clearRx(Uart *port);
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#endif
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