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/*
Copyright (c) 2015 Arduino LLC. All right reserved.
Copyright (c) 2016 Sandeep Mistry All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <nrf.h>
#include "HardwareSerial.h"
#include "RingBuffer.h"
#include "rtos.h"
#include <cstddef>
class Uart : public HardwareSerial
{
public:
Uart(NRF_UART_Type *_nrfUart, IRQn_Type _IRQn, uint8_t _pinRX, uint8_t _pinTX);
Uart(NRF_UART_Type *_nrfUart, IRQn_Type _IRQn, uint8_t _pinRX, uint8_t _pinTX, uint8_t _pinCTS, uint8_t _pinRTS );
void setPins(uint8_t pin_rx, uint8_t pin_tx);
void begin(unsigned long baudRate);
void begin(unsigned long baudrate, uint16_t config);
void end();
int available();
int peek();
int read();
void flush();
size_t write(uint8_t data);
using Print::write; // pull in write(str) and write(buf, size) from Print
void IrqHandler();
operator bool ()
{
return _begun;
}
private:
NRF_UART_Type *nrfUart;
RingBuffer rxBuffer;
IRQn_Type IRQn;
uint8_t uc_pinRX;
uint8_t uc_pinTX;
uint8_t uc_pinCTS;
uint8_t uc_pinRTS;
uint8_t uc_hwFlow;
bool _begun;
// Adafruit
SemaphoreHandle_t _mutex;
};
// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type
// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
// the first hardware serial port whose RX/TX pins are not dedicated to another use.
//
// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor
//
// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial
//
// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library
//
// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins.
//
// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX
// pins are NOT connected to anything by default.
#ifdef NRF52840_XXAA
#define SERIAL_PORT_MONITOR Serial
#define SERIAL_PORT_USBVIRTUAL Serial
#define SERIAL_PORT_HARDWARE Serial1
#define SERIAL_PORT_HARDWARE_OPEN Serial1
// TODO need to update class Uart to work with UARTE
//extern Uart Serial2;
//#define HAVE_HWSERIAL2
#else
#define SERIAL_PORT_MONITOR Serial
#define SERIAL_PORT_HARDWARE Serial
#endif
extern Uart SERIAL_PORT_HARDWARE;
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