Shorter paths to HAL, ExtUI (#17156)

Marlin/src/HAL/LINUX/hardware/LinearAxis.cpp

@@ -0,0 +1,66 @@
+/**
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef __PLAT_LINUX__
+
+#include <random>
+#include <stdio.h>
+#include "Clock.h"
+#include "LinearAxis.h"
+
+LinearAxis::LinearAxis(pin_type enable, pin_type dir, pin_type step, pin_type end_min, pin_type end_max) {
+  enable_pin = enable;
+  dir_pin = dir;
+  step_pin = step;
+  min_pin = end_min;
+  max_pin = end_max;
+
+  min_position = 50;
+  max_position = (200*80) + min_position;
+  position = rand() % ((max_position - 40) - min_position) + (min_position + 20);
+  last_update = Clock::nanos();
+
+  Gpio::attachPeripheral(step_pin, this);
+
+}
+
+LinearAxis::~LinearAxis() {
+
+}
+
+void LinearAxis::update() {
+
+}
+
+void LinearAxis::interrupt(GpioEvent ev) {
+  if (ev.pin_id == step_pin && !Gpio::pin_map[enable_pin].value){
+    if (ev.event == GpioEvent::RISE) {
+      last_update = ev.timestamp;
+      position += -1 + 2 * Gpio::pin_map[dir_pin].value;
+      Gpio::pin_map[min_pin].value = (position < min_position);
+      //Gpio::pin_map[max_pin].value = (position > max_position);
+      //if (position < min_position) printf("axis(%d) endstop : pos: %d, mm: %f, min: %d\n", step_pin, position, position / 80.0, Gpio::pin_map[min_pin].value);
+    }
+  }
+}
+
+#endif // __PLAT_LINUX__