platformio library faff

.pio/libdeps/esp32/SoftwareSerial/SoftwareSerial.h

@@ -0,0 +1,150 @@
+/*
+SoftwareSerial.h (formerly NewSoftSerial.h) - 
+Multi-instance software serial library for Arduino/Wiring
+-- Interrupt-driven receive and other improvements by ladyada
+   (http://ladyada.net)
+-- Tuning, circular buffer, derivation from class Print/Stream,
+   multi-instance support, porting to 8MHz processors,
+   various optimizations, PROGMEM delay tables, inverse logic and 
+   direct port writing by Mikal Hart (http://www.arduiniana.org)
+-- Pin change interrupt macros by Paul Stoffregen (http://www.pjrc.com)
+-- 20MHz processor support by Garrett Mace (http://www.macetech.com)
+-- ATmega1280/2560 support by Brett Hagman (http://www.roguerobotics.com/)
+
+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
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+#include <HardwareSerial.h>
+
+/******************************************************************************
+* Definitions
+******************************************************************************/
+
+#define _SS_MAX_RX_BUFF 64 // RX buffer size
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+#if defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__) || defined(__MK64FX512__) || defined(__MK66FX1M0__) || defined(__IMXRT1052__) || defined(__IMXRT1062__)
+
+class SoftwareSerial : public Stream
+{
+public:
+	SoftwareSerial(uint8_t rxPin, uint8_t txPin, bool inverse_logic = false);
+	~SoftwareSerial() { end(); }
+	void begin(unsigned long speed);
+	void end();
+	bool listen() { return true; }
+	bool isListening() { return true; }
+	bool overflow() { bool ret = buffer_overflow; buffer_overflow = false; return ret; }
+	virtual int available();
+	virtual int read();
+	int peek();
+	virtual void flush();
+	virtual size_t write(uint8_t byte);
+	using Print::write;
+private:
+	HardwareSerial *port;
+	uint32_t cycles_per_bit;
+	#if defined(__IMXRT1052__) || defined(__IMXRT1062__)
+	volatile uint32_t *txreg;
+	volatile uint32_t *rxreg;
+	#else
+	volatile uint8_t *txreg;
+	volatile uint8_t *rxreg;
+	#endif
+	bool buffer_overflow;
+	uint8_t txpin;
+	uint8_t rxpin;
+};
+
+#else
+class SoftwareSerial : public Stream
+{
+private:
+  // per object data
+  uint8_t _receivePin;
+  uint8_t _receiveBitMask;
+  volatile uint8_t *_receivePortRegister;
+  uint8_t _transmitBitMask;
+  volatile uint8_t *_transmitPortRegister;
+
+  uint16_t _rx_delay_centering;
+  uint16_t _rx_delay_intrabit;
+  uint16_t _rx_delay_stopbit;
+  uint16_t _tx_delay;
+
+  uint16_t _buffer_overflow:1;
+  uint16_t _inverse_logic:1;
+
+  // static data
+  static char _receive_buffer[_SS_MAX_RX_BUFF]; 
+  static volatile uint8_t _receive_buffer_tail;
+  static volatile uint8_t _receive_buffer_head;
+  static SoftwareSerial *active_object;
+
+  // private methods
+  void recv();
+  uint8_t rx_pin_read();
+  void tx_pin_write(uint8_t pin_state);
+  void setTX(uint8_t transmitPin);
+  void setRX(uint8_t receivePin);
+
+  // private static method for timing
+  static inline void tunedDelay(uint16_t delay);
+
+
+public:
+  // public methods
+  SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic = false);
+  ~SoftwareSerial();
+  void begin(long speed);
+  bool listen();
+  void end();
+  bool isListening() { return this == active_object; }
+  bool overflow() { bool ret = _buffer_overflow; _buffer_overflow = false; return ret; }
+  int peek();
+
+  virtual size_t write(uint8_t byte);
+  virtual int read();
+  virtual int available();
+  virtual void flush();
+  
+  using Print::write;
+
+  // public only for easy access by interrupt handlers
+  static inline void handle_interrupt();
+};
+
+// Arduino 0012 workaround
+#undef int
+#undef char
+#undef long
+#undef byte
+#undef float
+#undef abs
+#undef round
+
+#endif
+
+#endif