protocol/usb_hid/arduino-1.0.1/cores/arduino/HardwareSerial.h

   1 /*
   2   HardwareSerial.h - Hardware serial library for Wiring
   3   Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
   4
   5   This library is free software; you can redistribute it and/or
   6   modify it under the terms of the GNU Lesser General Public
   7   License as published by the Free Software Foundation; either
   8   version 2.1 of the License, or (at your option) any later version.
   9
  10   This library is distributed in the hope that it will be useful,
  11   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   Lesser General Public License for more details.
  14
  15   You should have received a copy of the GNU Lesser General Public
  16   License along with this library; if not, write to the Free Software
  17   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19   Modified 28 September 2010 by Mark Sproul
  20 */
  21
  22 #ifndef HardwareSerial_h
  23 #define HardwareSerial_h
  24
  25 #include <inttypes.h>
  26
  27 #include "Stream.h"
  28
  29 struct ring_buffer;
  30
  31 class HardwareSerial : public Stream
  32 {
  33   private:
  34     ring_buffer *_rx_buffer;
  35     ring_buffer *_tx_buffer;
  36     volatile uint8_t *_ubrrh;
  37     volatile uint8_t *_ubrrl;
  38     volatile uint8_t *_ucsra;
  39     volatile uint8_t *_ucsrb;
  40     volatile uint8_t *_udr;
  41     uint8_t _rxen;
  42     uint8_t _txen;
  43     uint8_t _rxcie;
  44     uint8_t _udrie;
  45     uint8_t _u2x;
  46   public:
  47     HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer,
  48       volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
  49       volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
  50       volatile uint8_t *udr,
  51       uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x);
  52     void begin(unsigned long);
  53     void end();
  54     virtual int available(void);
  55     virtual int peek(void);
  56     virtual int read(void);
  57     virtual void flush(void);
  58     virtual size_t write(uint8_t);
  59     using Print::write; // pull in write(str) and write(buf, size) from Print
  60     operator bool();
  61 };
  62
  63 #if defined(UBRRH) || defined(UBRR0H)
  64   extern HardwareSerial Serial;
  65 #elif defined(USBCON)
  66   #include "USBAPI.h"
  67 //  extern HardwareSerial Serial_;
  68 #endif
  69 #if defined(UBRR1H)
  70   extern HardwareSerial Serial1;
  71 #endif
  72 #if defined(UBRR2H)
  73   extern HardwareSerial Serial2;
  74 #endif
  75 #if defined(UBRR3H)
  76   extern HardwareSerial Serial3;
  77 #endif
  78
  79 extern void serialEventRun(void) __attribute__((weak));
  80
  81 #endif