samd: mcu & bootloader

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/kaleidoscope/driver/bootloader/samd/Bossac.h

@@ -0,0 +1,47 @@
+/* -*- mode: c++ -*-
+ * kaleidoscope::driver::bootloader::samd::Bossac -- Driver for the SAMD bootloader
+ * Copyright (C) 2019  Keyboard.io, Inc
+ * Copyright (C) 2019  Dygma, Inc
+ *
+ * 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, version 3.
+ *
+ * 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
+
+#ifdef ARDUINO_ARCH_SAMD
+
+#include "kaleidoscope/driver/bootloader/Base.h"
+
+namespace kaleidoscope {
+namespace driver {
+namespace bootloader {
+namespace samd {
+
+class Bossac : public kaleidoscope::driver::bootloader::Base {
+ public:
+  static void rebootBootloader() {
+    __attribute__((__aligned__(4)))	UsbDeviceDescriptor EP[USB_EPT_NUM];
+
+    USB->DEVICE.CTRLA.bit.SWRST = 1;
+    memset(EP, 0, sizeof(EP));
+    while (USB->DEVICE.SYNCBUSY.bit.SWRST) {}
+    USB->DEVICE.DESCADD.reg = (uint32_t)(&EP);
+  }
+};
+
+}
+}
+}
+}
+
+#endif

src/kaleidoscope/driver/mcu/SAMD.h

@@ -0,0 +1,43 @@
+/* -*- mode: c++ -*-
+ * driver::mcu::SAMD -- SAMD MCU driver class for Kaleidoscope
+ * Copyright (C) 2019  Keyboard.io, Inc
+ * Copyright (C) 2019  Dygma, Inc
+ *
+ * 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, version 3.
+ *
+ * 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
+
+#ifdef ARDUINO_ARCH_SAMD
+
+#include "kaleidoscope/driver/mcu/Base.h"
+
+namespace kaleidoscope {
+namespace driver {
+namespace mcu {
+
+class SAMD : public kaleidoscope::driver::mcu::Base {
+ public:
+  void detachFromHost() {
+    USBDevice.detach();
+  }
+  void attachToHost() {
+    USBDevice.attach();
+  }
+};
+
+}
+}
+}
+
+#endif