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Diffstat (limited to 'cores/arduino/HardwareSerial.h')
| -rw-r--r-- | cores/arduino/HardwareSerial.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/cores/arduino/HardwareSerial.h b/cores/arduino/HardwareSerial.h new file mode 100644 index 0000000..c2d0ce9 --- /dev/null +++ b/cores/arduino/HardwareSerial.h @@ -0,0 +1,131 @@ +/* + HardwareSerial.h - Hardware serial library for Wiring + Copyright (c) 2006 Nicholas Zambetti. 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 + + Modified 28 September 2010 by Mark Sproul + Modified 14 August 2012 by Alarus +*/ + +#ifndef HardwareSerial_h +#define HardwareSerial_h + +#include <inttypes.h> + +#include "Stream.h" + +struct ring_buffer; + +class HardwareSerial : public Stream +{ + private: + ring_buffer *_rx_buffer; + ring_buffer *_tx_buffer; + volatile uint8_t *_ubrrh; + volatile uint8_t *_ubrrl; + volatile uint8_t *_ucsra; + volatile uint8_t *_ucsrb; + volatile uint8_t *_ucsrc; + volatile uint8_t *_udr; + uint8_t _rxen; + uint8_t _txen; + uint8_t _rxcie; + uint8_t _udrie; + uint8_t _u2x; + bool transmitting; + public: + HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer, + volatile uint8_t *ubrrh, volatile uint8_t *ubrrl, + volatile uint8_t *ucsra, volatile uint8_t *ucsrb, + volatile uint8_t *ucsrc, volatile uint8_t *udr, + uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x); + void begin(unsigned long); + void begin(unsigned long, byte); + void end(); + virtual int available(void); + virtual int peek(void); + virtual int read(void); + virtual void flush(void); + virtual size_t write(uint8_t); + inline size_t write(unsigned long n) { return write((uint8_t)n); } + inline size_t write(long n) { return write((uint8_t)n); } + inline size_t write(unsigned int n) { return write((uint8_t)n); } + inline size_t write(int n) { return write((uint8_t)n); } + using Print::write; // pull in write(str) and write(buf, size) from Print + operator bool(); +}; + +// Define config for Serial.begin(baud, config); +#define SERIAL_5N1 0x00 +#define SERIAL_6N1 0x02 +#define SERIAL_7N1 0x04 +#define SERIAL_8N1 0x06 +#define SERIAL_5N2 0x08 +#define SERIAL_6N2 0x0A +#define SERIAL_7N2 0x0C +#define SERIAL_8N2 0x0E +#define SERIAL_5E1 0x20 +#define SERIAL_6E1 0x22 +#define SERIAL_7E1 0x24 +#define SERIAL_8E1 0x26 +#define SERIAL_5E2 0x28 +#define SERIAL_6E2 0x2A +#define SERIAL_7E2 0x2C +#define SERIAL_8E2 0x2E +#define SERIAL_5O1 0x30 +#define SERIAL_6O1 0x32 +#define SERIAL_7O1 0x34 +#define SERIAL_8O1 0x36 +#define SERIAL_5O2 0x38 +#define SERIAL_6O2 0x3A +#define SERIAL_7O2 0x3C +#define SERIAL_8O2 0x3E + +#if defined(UBRRH) || defined(UBRR0H) + extern HardwareSerial Serial; +#elif defined(USBCON) + #include "USBAPI.h" +// extern HardwareSerial Serial_; +#endif +#if defined(UBRR1H) + extern HardwareSerial Serial1; +#endif +#if defined(UBRR2H) + extern HardwareSerial Serial2; +#endif +#if defined(UBRR3H) + extern HardwareSerial Serial3; +#endif + +/* + * on ATmega8, the uart and its bits are not numbered, so there is no "TXC0" + * definition. It is slightly cleaner to define this here instead of having + * conditional code in the cpp module. + */ +#if !defined(TXC0) +#if defined(TXC) +#define TXC0 TXC +#elif defined(TXC1) +// Some devices have uart1 but no uart0 +#define TXC0 TXC1 +#else +#error TXC0 not definable in HardwareSerial.h +#endif +#endif + +extern void serialEventRun(void) __attribute__((weak)); + +#endif |