Merge pull request #2 from adafruit/master

Master

1 files changed, 63 insertions, 0 deletions

diff --git a/shared-module/usb_midi/__init__.c b/shared-module/usb_midi/__init__.c
new file mode 100644
index 000000000..73a314b99
--- /dev/null
+++ b/shared-module/usb_midi/__init__.c
@@ -0,0 +1,63 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 hathach 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.
+ */
+
+#include "shared-bindings/usb_midi/__init__.h"
+
+#include "genhdr/autogen_usb_descriptor.h"
+#include "py/obj.h"
+#include "py/mphal.h"
+#include "py/runtime.h"
+#include "py/objtuple.h"
+#include "shared-bindings/usb_midi/PortIn.h"
+#include "shared-bindings/usb_midi/PortOut.h"
+#include "supervisor/memory.h"
+#include "tusb.h"
+
+supervisor_allocation* usb_midi_allocation;
+
+void usb_midi_init(void) {
+    // TODO(tannewt): Make this dynamic.
+    uint16_t tuple_size = align32_size(sizeof(mp_obj_tuple_t) + sizeof(mp_obj_t*) * 2);
+    uint16_t portin_size = align32_size(sizeof(usb_midi_portin_obj_t));
+    uint16_t portout_size = align32_size(sizeof(usb_midi_portout_obj_t));
+
+    // For each embedded MIDI Jack in the descriptor we create a Port
+    usb_midi_allocation = allocate_memory(tuple_size + portin_size + portout_size, false);
+
+    mp_obj_tuple_t *ports = (mp_obj_tuple_t *) usb_midi_allocation->ptr;
+    ports->base.type = &mp_type_tuple;
+    ports->len = 2;
+
+    usb_midi_portin_obj_t* in = (usb_midi_portin_obj_t *) (usb_midi_allocation->ptr + tuple_size / 4);
+    in->base.type = &usb_midi_portin_type;
+    ports->items[0] = MP_OBJ_FROM_PTR(in);
+
+    usb_midi_portout_obj_t* out = (usb_midi_portout_obj_t *) (usb_midi_allocation->ptr + tuple_size / 4 + portin_size / 4);
+    out->base.type = &usb_midi_portout_type;
+    ports->items[1] = MP_OBJ_FROM_PTR(out);
+
+    mp_map_lookup(&usb_midi_module_globals.map, MP_ROM_QSTR(MP_QSTR_ports), MP_MAP_LOOKUP)->value = MP_OBJ_FROM_PTR(ports);
+}