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