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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/>.
- *
- */
-
- #include "../platforms.h"
-
- #ifdef HAL_STM32
-
- #include "../../inc/MarlinConfig.h"
- #include "MarlinSerial.h"
-
- #if ENABLED(EMERGENCY_PARSER)
- #include "../../feature/e_parser.h"
- #endif
-
- #ifndef USART4
- #define USART4 UART4
- #endif
- #ifndef USART5
- #define USART5 UART5
- #endif
-
- #define DECLARE_SERIAL_PORT(ser_num) \
- void _rx_complete_irq_ ## ser_num (serial_t * obj); \
- MSerialT MSerial ## ser_num (true, USART ## ser_num, &_rx_complete_irq_ ## ser_num); \
- void _rx_complete_irq_ ## ser_num (serial_t * obj) { MSerial ## ser_num ._rx_complete_irq(obj); }
-
- #if USING_HW_SERIAL1
- DECLARE_SERIAL_PORT(1)
- #endif
- #if USING_HW_SERIAL2
- DECLARE_SERIAL_PORT(2)
- #endif
- #if USING_HW_SERIAL3
- DECLARE_SERIAL_PORT(3)
- #endif
- #if USING_HW_SERIAL4
- DECLARE_SERIAL_PORT(4)
- #endif
- #if USING_HW_SERIAL5
- DECLARE_SERIAL_PORT(5)
- #endif
- #if USING_HW_SERIAL6
- DECLARE_SERIAL_PORT(6)
- #endif
- #if USING_HW_SERIAL7
- DECLARE_SERIAL_PORT(7)
- #endif
- #if USING_HW_SERIAL8
- DECLARE_SERIAL_PORT(8)
- #endif
- #if USING_HW_SERIAL9
- DECLARE_SERIAL_PORT(9)
- #endif
- #if USING_HW_SERIAL10
- DECLARE_SERIAL_PORT(10)
- #endif
- #if USING_HW_SERIALLP1
- DECLARE_SERIAL_PORT(LP1)
- #endif
-
- void MarlinSerial::begin(unsigned long baud, uint8_t config) {
- HardwareSerial::begin(baud, config);
- // Replace the IRQ callback with the one we have defined
- TERN_(EMERGENCY_PARSER, _serial.rx_callback = _rx_callback);
- }
-
- // This function is Copyright (c) 2006 Nicholas Zambetti.
- void MarlinSerial::_rx_complete_irq(serial_t *obj) {
- // No Parity error, read byte and store it in the buffer if there is room
- unsigned char c;
-
- if (uart_getc(obj, &c) == 0) {
-
- rx_buffer_index_t i = (unsigned int)(obj->rx_head + 1) % SERIAL_RX_BUFFER_SIZE;
-
- // if we should be storing the received character into the location
- // just before the tail (meaning that the head would advance to the
- // current location of the tail), we're about to overflow the buffer
- // and so we don't write the character or advance the head.
- if (i != obj->rx_tail) {
- obj->rx_buff[obj->rx_head] = c;
- obj->rx_head = i;
- }
-
- #if ENABLED(EMERGENCY_PARSER)
- emergency_parser.update(static_cast<MSerialT*>(this)->emergency_state, c);
- #endif
- }
- }
-
- #endif // HAL_STM32
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