Add USB MIDI support for SAMD and nRF.

The API should be identical to using a UART for MIDI.

Fixes #672

1 files changed, 44 insertions, 0 deletions

diff --git a/shared-bindings/usb_midi/PortIn.h b/shared-bindings/usb_midi/PortIn.h
new file mode 100644
index 000000000..89bb59b71
--- /dev/null
+++ b/shared-bindings/usb_midi/PortIn.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_USB_MIDI_PORTIN_H
+#define MICROPY_INCLUDED_SHARED_BINDINGS_USB_MIDI_PORTIN_H
+
+#include "shared-module/usb_midi/PortIn.h"
+
+extern const mp_obj_type_t usb_midi_portin_type;
+
+// Construct an underlying UART object.
+extern void common_hal_usb_midi_portin_construct(usb_midi_portin_obj_t *self,
+    uint8_t receiver_buffer_size);
+// Read characters.
+extern size_t common_hal_usb_midi_portin_read(usb_midi_portin_obj_t *self,
+    uint8_t *data, size_t len, int *errcode);
+
+extern uint32_t common_hal_usb_midi_portin_bytes_available(usb_midi_portin_obj_t *self);
+extern void common_hal_usb_midi_portin_clear_buffer(usb_midi_portin_obj_t *self);
+
+#endif  // MICROPY_INCLUDED_SHARED_BINDINGS_USB_MIDI_PORTIN_H