Adafruit Grand Central M4 (#14749)

Marlin/src/HAL/HAL_SAMD51/HAL.h

@@ -0,0 +1,141 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * SAMD51 HAL developed by Giuliano Zaro (AKA GMagician)
+ *
+ * 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
+
+#define CPU_32_BIT
+
+#include "../shared/Marduino.h"
+#include "../shared/math_32bit.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio_SAMD51.h"
+#include "watchdog_SAMD51.h"
+#include "HAL_timers_SAMD51.h"
+
+#ifdef ADAFRUIT_GRAND_CENTRAL_M4
+  #include "MarlinSerial_AGCM4.h"
+
+  // Serial ports
+  #if !WITHIN(SERIAL_PORT, -1, 3)
+    #error "SERIAL_PORT must be from -1 to 3"
+  #endif
+
+  // MYSERIAL0 required before MarlinSerial includes!
+  #if SERIAL_PORT == -1
+    #define MYSERIAL0 Serial
+  #elif SERIAL_PORT == 0
+    #define MYSERIAL0 Serial1
+  #elif SERIAL_PORT == 1
+    #define MYSERIAL0 Serial2
+  #elif SERIAL_PORT == 2
+    #define MYSERIAL0 Serial3
+  #else
+    #define MYSERIAL0 Serial4
+  #endif
+
+  #ifdef SERIAL_PORT_2
+    #if !WITHIN(SERIAL_PORT_2, -1, 3)
+      #error "SERIAL_PORT_2 must be from -1 to 3"
+    #elif SERIAL_PORT_2 == SERIAL_PORT
+      #error "SERIAL_PORT_2 must be different than SERIAL_PORT"
+    #endif
+    #define NUM_SERIAL 2
+    #if SERIAL_PORT_2 == -1
+      #define MYSERIAL1 Serial
+    #elif SERIAL_PORT_2 == 0
+      #define MYSERIAL1 Serial1
+    #elif SERIAL_PORT_2 == 1
+      #define MYSERIAL1 Serial2
+    #elif SERIAL_PORT_2 == 2
+      #define MYSERIAL1 Serial3
+    #else
+      #define MYSERIAL1 Serial4
+    #endif
+  #else
+    #define NUM_SERIAL 1
+  #endif
+
+#endif // ADAFRUIT_GRAND_CENTRAL_M4
+
+typedef int8_t pin_t;
+
+//#define HAL_SERVO_LIB Servo
+
+//
+// Interrupts
+//
+#define CRITICAL_SECTION_START  uint32_t primask = __get_PRIMASK(); __disable_irq()
+#define CRITICAL_SECTION_END    if (!primask) __enable_irq()
+#define ISRS_ENABLED() (!__get_PRIMASK())
+#define ENABLE_ISRS()  __enable_irq()
+#define DISABLE_ISRS() __disable_irq()
+
+#define cli() __disable_irq()       // Disable interrupts
+#define sei() __enable_irq()        // Enable interrupts
+
+void HAL_clear_reset_source(void);  // clear reset reason
+uint8_t HAL_get_reset_source(void); // get reset reason
+
+//
+// EEPROM
+//
+void eeprom_write_byte(uint8_t *pos, unsigned char value);
+uint8_t eeprom_read_byte(uint8_t *pos);
+
+//
+// ADC
+//
+extern uint16_t HAL_adc_result;     // result of last ADC conversion
+
+#define HAL_ANALOG_SELECT(pin)
+
+void HAL_adc_init(void);
+
+#define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
+#define HAL_READ_ADC()      HAL_adc_result
+#define HAL_ADC_READY()     true
+
+void HAL_adc_start_conversion(const uint8_t adc_pin);
+uint16_t HAL_adc_get_result(void);
+
+//
+// Pin Map
+//
+#define GET_PIN_MAP_PIN(index) index
+#define GET_PIN_MAP_INDEX(pin) pin
+#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
+
+//
+// Tone
+//
+void toneInit();
+void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration=0);
+void noTone(const pin_t _pin);
+
+// Enable hooks into idle and setup for HAL
+void HAL_init(void);
+/*#define HAL_IDLETASK 1
+void HAL_idletask(void);*/
+
+//
+// Utility functions
+//
+FORCE_INLINE void _delay_ms(const int delay_ms) { delay(delay_ms); }
+int freeMemory(void);