Marlin_Firmware/Marlin/src/HAL/HAL_ESP32/WebSocketSerial.h

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/**
* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
* 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/>.
*
*/
#pragma once
#include "../../inc/MarlinConfig.h"
#include "Stream.h"
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#ifndef RX_BUFFER_SIZE
#define RX_BUFFER_SIZE 128
#endif
#ifndef TX_BUFFER_SIZE
#define TX_BUFFER_SIZE 32
#endif
#if TX_BUFFER_SIZE <= 0
#error "TX_BUFFER_SIZE is required for the WebSocket."
#endif
typedef uint16_t ring_buffer_pos_t;
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class RingBuffer {
uint8_t *data;
ring_buffer_pos_t size, read_index, write_index;
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public:
RingBuffer(ring_buffer_pos_t size);
~RingBuffer();
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int available(void);
int peek(void);
int read(void);
ring_buffer_pos_t read(uint8_t *buffer);
void flush(void);
ring_buffer_pos_t write(const uint8_t c);
ring_buffer_pos_t write(const uint8_t* buffer, ring_buffer_pos_t size);
};
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class WebSocketSerial: public Stream {
RingBuffer rx_buffer;
RingBuffer tx_buffer;
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public:
WebSocketSerial();
void begin(const long);
void end();
int available(void);
int peek(void);
int read(void);
void flush(void);
void flushTX(void);
size_t write(const uint8_t c);
size_t write(const uint8_t* buffer, size_t size);
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operator bool() { return true; }
#if ENABLED(SERIAL_STATS_DROPPED_RX)
FORCE_INLINE uint32_t dropped() { return 0; }
#endif
#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
FORCE_INLINE int rxMaxEnqueued() { return 0; }
#endif
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};
extern WebSocketSerial webSocketSerial;