serial.h

/*

  serial.h - low level functions for transmitting bytes via the serial port

  Part of grblHAL

  Copyright (c) 2017-2020 Terje Io

  Grbl is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  Grbl is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.

*/

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

#include "driver.h"

#define RX_BUFFER_HWM 900
#define RX_BUFFER_LWM 300

void serialInit(uint32_t baud_rate);
int16_t serialGetC(void);
void serialWriteS(const char *s);
uint16_t serialRxFree(void);
void serialRxFlush(void);
void serialRxCancel(void);
bool serialSuspendInput (bool suspend);

#ifdef SERIAL2_MOD
void serial2Init(uint32_t baud_rate);
bool serial2SetBaudRate (uint32_t baud_rate);
uint16_t serial2RxFree (void);
void serial2RxFlush (void);
void serial2RxCancel (void);
uint16_t serial2RxCount (void);
uint16_t serial2TxCount (void);
void serial2TxFlush (void);
void serial2Write(const char *s, uint16_t length);
bool serial2PutC(const char c);
int16_t serial2GetC (void);
void serialSelect (bool mpg);
#endif