Emergency Parser for STM32 (#18095)

Marlin/src/HAL/STM32/MarlinSerial.h

@@ -0,0 +1,54 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * 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/MarlinConfigPre.h"
+
+#if ENABLED(EMERGENCY_PARSER)
+  #include "../../feature/e_parser.h"
+#endif
+
+typedef void (*usart_rx_callback_t)(serial_t * obj);
+
+class MarlinSerial : public HardwareSerial {
+public:
+  MarlinSerial(void* peripheral, usart_rx_callback_t rx_callback) :
+      HardwareSerial(peripheral), _rx_callback(rx_callback)
+      #if ENABLED(EMERGENCY_PARSER)
+        , emergency_state(EmergencyParser::State::EP_RESET)
+      #endif
+  { }
+
+  void begin(unsigned long baud, uint8_t config);
+  inline void begin(unsigned long baud) { begin(baud, SERIAL_8N1); }
+
+  void _rx_complete_irq(serial_t* obj);
+
+protected:
+  usart_rx_callback_t _rx_callback;
+  #if ENABLED(EMERGENCY_PARSER)
+    EmergencyParser::State emergency_state;
+  #endif
+};
+
+extern MarlinSerial MSerial1;
+extern MarlinSerial MSerial2;
+extern MarlinSerial MSerial3;
+extern MarlinSerial MSerial4;
+extern MarlinSerial MSerial5;