added basic code

1 files changed, 94 insertions, 0 deletions

diff --git a/arduino/libraries/SoftwareSerial/SoftwareSerial.h b/arduino/libraries/SoftwareSerial/SoftwareSerial.h
new file mode 100755
index 0000000..ae1fc08
--- /dev/null
+++ b/arduino/libraries/SoftwareSerial/SoftwareSerial.h
@@ -0,0 +1,94 @@
+/*
+  SoftwareSerial.cpp - library for Arduino Primo
+  Copyright (c) 2016 Arduino. All rights 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
+ 
+ */
+ 
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+#include <variant.h>
+
+/******************************************************************************
+* Definitions
+******************************************************************************/
+
+#define _SS_MAX_RX_BUFF 64 // RX buffer size
+
+class SoftwareSerial : public Stream
+{
+private:
+  // per object data
+  uint8_t _transmitPin;
+  uint8_t _receivePin;
+  uint32_t _receiveBitMask;
+  volatile uint32_t* _receivePortRegister;
+  uint32_t _transmitBitMask;
+  volatile uint32_t* _transmitPortRegister;
+  volatile uint32_t _intMask;
+
+  // Expressed as 4-cycle delays (must never be 0!)
+  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() __attribute__((__always_inline__));
+  uint32_t rx_pin_read();
+  void tx_pin_write(uint8_t pin_state) __attribute__((__always_inline__));
+  void setTX(uint8_t transmitPin);
+  void setRX(uint8_t receivePin);
+  void setRxIntMsk(bool enable) __attribute__((__always_inline__));
+
+
+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 stopListening();
+  bool overflow() { bool ret = _buffer_overflow; if (ret) _buffer_overflow = false; return ret; }
+  int peek();
+
+  virtual size_t write(uint8_t byte);
+  virtual int read();
+  virtual int available();
+  virtual void flush();
+  operator bool() { return true; }
+  
+  using Print::write;
+
+  // public only for easy access by interrupt handlers
+  static inline void handle_interrupt() __attribute__((__always_inline__));
+};
+
+#endif