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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
- *
- */
- #pragma once
-
- #include <HardwareSerial.h>
- #include <libmaple/usart.h>
- #include <WString.h>
-
- #include "../../inc/MarlinConfigPre.h"
- #if ENABLED(EMERGENCY_PARSER)
- #include "../../feature/e_parser.h"
- #endif
-
- // Increase priority of serial interrupts, to reduce overflow errors
- #define UART_IRQ_PRIO 1
-
- class MarlinSerial : public HardwareSerial {
- public:
- #if ENABLED(EMERGENCY_PARSER)
- const bool ep_enabled;
- EmergencyParser::State emergency_state;
- inline bool emergency_parser_enabled() { return ep_enabled; }
- #endif
-
- MarlinSerial(struct usart_dev *usart_device, uint8 tx_pin, uint8 rx_pin, bool TERN_(EMERGENCY_PARSER, ep_capable)) :
- HardwareSerial(usart_device, tx_pin, rx_pin)
- #if ENABLED(EMERGENCY_PARSER)
- , ep_enabled(ep_capable)
- , emergency_state(EmergencyParser::State::EP_RESET)
- #endif
- { }
-
- #ifdef UART_IRQ_PRIO
- // Shadow the parent methods to set IRQ priority after begin()
- void begin(uint32 baud) {
- MarlinSerial::begin(baud, SERIAL_8N1);
- }
-
- void begin(uint32 baud, uint8_t config) {
- HardwareSerial::begin(baud, config);
- nvic_irq_set_priority(c_dev()->irq_num, UART_IRQ_PRIO);
- }
- #endif
- };
-
- extern MarlinSerial MSerial1;
- extern MarlinSerial MSerial2;
- extern MarlinSerial MSerial3;
- #if EITHER(STM32_HIGH_DENSITY, STM32_XL_DENSITY)
- extern MarlinSerial MSerial4;
- extern MarlinSerial MSerial5;
- #endif
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