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129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/*
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HardwareSerial.h - Hardware serial library for Wiring
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Copyright (c) 2006 Nicholas Zambetti. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Modified 28 September 2010 by Mark Sproul
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Modified 14 August 2012 by Alarus
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Modified 3 December 2013 by Matthijs Kooijman
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Modified 18 December 2014 by Ivan Grokhotkov (esp8266 platform support)
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Modified 31 March 2015 by Markus Sattler (rewrite the code for UART0 + UART1 support in ESP8266)
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*/
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#ifndef HardwareSerial_h
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#define HardwareSerial_h
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#include <inttypes.h>
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#include "Stream.h"
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#define SERIAL_TX_BUFFER_SIZE 256
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#define SERIAL_RX_BUFFER_SIZE 256
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// // Define config for Serial.begin(baud, config);
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// #define SERIAL_5N1 0x00
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// #define SERIAL_6N1 0x02
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// #define SERIAL_7N1 0x04
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// #define SERIAL_8N1 0x06
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// #define SERIAL_5N2 0x08
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// #define SERIAL_6N2 0x0A
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// #define SERIAL_7N2 0x0C
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// #define SERIAL_8N2 0x0E
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// #define SERIAL_5E1 0x20
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// #define SERIAL_6E1 0x22
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// #define SERIAL_7E1 0x24
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// #define SERIAL_8E1 0x26
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// #define SERIAL_5E2 0x28
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// #define SERIAL_6E2 0x2A
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// #define SERIAL_7E2 0x2C
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// #define SERIAL_8E2 0x2E
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// #define SERIAL_5O1 0x30
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// #define SERIAL_6O1 0x32
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// #define SERIAL_7O1 0x34
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// #define SERIAL_8O1 0x36
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// #define SERIAL_5O2 0x38
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// #define SERIAL_6O2 0x3A
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// #define SERIAL_7O2 0x3C
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// #define SERIAL_8O2 0x3E
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class cbuf;
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typedef enum {
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UART0 = 0, UART1 = 1, UART_NO = 0xFF
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} UARTnr_t;
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typedef struct {
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UARTnr_t uart_nr;
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int baud_rate;
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bool rxEnabled;
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bool txEnabled;
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uint8_t rxPin;
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uint8_t txPin;
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} uart_t;
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class HardwareSerial: public Stream {
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public:
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HardwareSerial(UARTnr_t uart_nr);
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void begin(unsigned long baud) {
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begin(baud, 0);
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}
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void begin(unsigned long, uint8_t);
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void end();
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void swap(); //use GPIO13 and GPIO15 as RX and TX
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int available(void) override;
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int peek(void) override;
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int read(void) override;
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int availableForWrite(void);
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void flush(void) override;
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size_t write(uint8_t) override;
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inline size_t write(unsigned long n) {
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return write((uint8_t) n);
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}
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inline size_t write(long n) {
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return write((uint8_t) n);
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}
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inline size_t write(unsigned int n) {
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return write((uint8_t) n);
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}
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inline size_t write(int n) {
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return write((uint8_t) n);
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}
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using Print::write; // pull in write(str) and write(buf, size) from Print
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operator bool() const;
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void setDebugOutput(bool);
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bool isTxEnabled(void);
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bool isRxEnabled(void);
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protected:
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friend void uart_interrupt_handler(uart_t* uart);
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void _rx_complete_irq(char c);
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void _tx_empty_irq(void);
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protected:
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UARTnr_t _uart_nr;
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uart_t* _uart;
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cbuf* _tx_buffer;
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cbuf* _rx_buffer;
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bool _written;
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};
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extern HardwareSerial Serial;
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extern HardwareSerial Serial1;
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#endif
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