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Arduino Due XON/XOFF implementation

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Alos includes emergency parser and configurable TX/RX buffers for Arduino Due.
This commit is contained in:
etagle
2017-10-11 03:38:12 -03:00
committed by Scott Lahteine
parent 8d9c3cc2b7
commit ba8dc678f5
4 changed files with 874 additions and 62 deletions
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142
Marlin/src/HAL/HAL_DUE/MarlinSerial_Due.h Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* MarlinSerial_Due.h - Hardware serial library for Arduino DUE
* Copyright (c) 2017 Eduardo José Tagle. All right reserved
* Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti. All right reserved.
*/
#ifndef MARLINSERIAL_DUE_H
#define MARLINSERIAL_DUE_H
#include "../../inc/MarlinConfig.h"
#include <WString.h>
#ifndef SERIAL_PORT
#define SERIAL_PORT 0
#endif
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2
#define BYTE 0
// Define constants and variables for buffering incoming serial data. We're
// using a ring buffer (I think), in which rx_buffer_head is the index of the
// location to which to write the next incoming character and rx_buffer_tail
// is the index of the location from which to read.
// 256 is the max limit due to uint8_t head and tail. Use only powers of 2. (...,16,32,64,128,256)
#ifndef RX_BUFFER_SIZE
#define RX_BUFFER_SIZE 128
#endif
#ifndef TX_BUFFER_SIZE
#define TX_BUFFER_SIZE 32
#endif
#if ENABLED(SERIAL_XON_XOFF) && RX_BUFFER_SIZE < 1024
#error "XON/XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
#endif
#if !IS_POWER_OF_2(RX_BUFFER_SIZE) || RX_BUFFER_SIZE < 2
#error "RX_BUFFER_SIZE must be a power of 2 greater than 1."
#endif
#if TX_BUFFER_SIZE && (TX_BUFFER_SIZE < 2 || TX_BUFFER_SIZE > 256 || !IS_POWER_OF_2(TX_BUFFER_SIZE))
#error "TX_BUFFER_SIZE must be 0 or a power of 2 greater than 1."
#endif
#if RX_BUFFER_SIZE > 256
typedef uint16_t ring_buffer_pos_t;
#else
typedef uint8_t ring_buffer_pos_t;
#endif
#if ENABLED(SERIAL_STATS_DROPPED_RX)
extern uint8_t rx_dropped_bytes;
#endif
#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
extern ring_buffer_pos_t rx_max_enqueued;
#endif
class MarlinSerial {
public:
MarlinSerial() {};
static void begin(const long);
static void end();
static int peek(void);
static int read(void);
static void flush(void);
static ring_buffer_pos_t available(void);
static void checkRx(void);
static void write(const uint8_t c);
#if TX_BUFFER_SIZE > 0
static uint8_t availableForWrite(void);
static void flushTX(void);
#endif
static void writeNoHandshake(const uint8_t c);
#if ENABLED(SERIAL_STATS_DROPPED_RX)
FORCE_INLINE static uint32_t dropped() { return rx_dropped_bytes; }
#endif
#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return rx_max_enqueued; }
#endif
static FORCE_INLINE void write(const char* str) { while (*str) write(*str++); }
static FORCE_INLINE void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
static FORCE_INLINE void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
static FORCE_INLINE void print(const char* str) { write(str); }
static void print(char, int = BYTE);
static void print(unsigned char, int = BYTE);
static void print(int, int = DEC);
static void print(unsigned int, int = DEC);
static void print(long, int = DEC);
static void print(unsigned long, int = DEC);
static void print(double, int = 2);
static void println(const String& s);
static void println(const char[]);
static void println(char, int = BYTE);
static void println(unsigned char, int = BYTE);
static void println(int, int = DEC);
static void println(unsigned int, int = DEC);
static void println(long, int = DEC);
static void println(unsigned long, int = DEC);
static void println(double, int = 2);
static void println(void);
operator bool() { return true; }
private:
static void printNumber(unsigned long, const uint8_t);
static void printFloat(double, uint8_t);
};
extern MarlinSerial customizedSerial;
#endif // MARLINSERIAL_DUE_H