[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/firewire/motu/motu-midi.c b/src/kernel/linux/v4.14/sound/firewire/motu/motu-midi.c
new file mode 100644
index 0000000..e55cab6
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/firewire/motu/motu-midi.c
@@ -0,0 +1,169 @@
+/*
+ * motu-midi.h - a part of driver for MOTU FireWire series
+ *
+ * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+#include "motu.h"
+
+static int midi_capture_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_motu *motu = substream->rmidi->private_data;
+ int err;
+
+ err = snd_motu_stream_lock_try(motu);
+ if (err < 0)
+ return err;
+
+ mutex_lock(&motu->mutex);
+
+ motu->capture_substreams++;
+ err = snd_motu_stream_start_duplex(motu, 0);
+
+ mutex_unlock(&motu->mutex);
+
+ if (err < 0)
+ snd_motu_stream_lock_release(motu);
+
+ return err;
+}
+
+static int midi_playback_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_motu *motu = substream->rmidi->private_data;
+ int err;
+
+ err = snd_motu_stream_lock_try(motu);
+ if (err < 0)
+ return err;
+
+ mutex_lock(&motu->mutex);
+
+ motu->playback_substreams++;
+ err = snd_motu_stream_start_duplex(motu, 0);
+
+ mutex_unlock(&motu->mutex);
+
+ if (err < 0)
+ snd_motu_stream_lock_release(motu);
+
+ return err;
+}
+
+static int midi_capture_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_motu *motu = substream->rmidi->private_data;
+
+ mutex_lock(&motu->mutex);
+
+ motu->capture_substreams--;
+ snd_motu_stream_stop_duplex(motu);
+
+ mutex_unlock(&motu->mutex);
+
+ snd_motu_stream_lock_release(motu);
+ return 0;
+}
+
+static int midi_playback_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_motu *motu = substream->rmidi->private_data;
+
+ mutex_lock(&motu->mutex);
+
+ motu->playback_substreams--;
+ snd_motu_stream_stop_duplex(motu);
+
+ mutex_unlock(&motu->mutex);
+
+ snd_motu_stream_lock_release(motu);
+ return 0;
+}
+
+static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_motu *motu = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&motu->lock, flags);
+
+ if (up)
+ amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
+ substrm);
+ else
+ amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
+ NULL);
+
+ spin_unlock_irqrestore(&motu->lock, flags);
+}
+
+static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_motu *motu = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&motu->lock, flags);
+
+ if (up)
+ amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
+ substrm);
+ else
+ amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
+ NULL);
+
+ spin_unlock_irqrestore(&motu->lock, flags);
+}
+
+static void set_midi_substream_names(struct snd_motu *motu,
+ struct snd_rawmidi_str *str)
+{
+ struct snd_rawmidi_substream *subs;
+
+ list_for_each_entry(subs, &str->substreams, list) {
+ snprintf(subs->name, sizeof(subs->name),
+ "%s MIDI %d", motu->card->shortname, subs->number + 1);
+ }
+}
+
+int snd_motu_create_midi_devices(struct snd_motu *motu)
+{
+ static const struct snd_rawmidi_ops capture_ops = {
+ .open = midi_capture_open,
+ .close = midi_capture_close,
+ .trigger = midi_capture_trigger,
+ };
+ static const struct snd_rawmidi_ops playback_ops = {
+ .open = midi_playback_open,
+ .close = midi_playback_close,
+ .trigger = midi_playback_trigger,
+ };
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_str *str;
+ int err;
+
+ /* create midi ports */
+ err = snd_rawmidi_new(motu->card, motu->card->driver, 0, 1, 1, &rmidi);
+ if (err < 0)
+ return err;
+
+ snprintf(rmidi->name, sizeof(rmidi->name),
+ "%s MIDI", motu->card->shortname);
+ rmidi->private_data = motu;
+
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT |
+ SNDRV_RAWMIDI_INFO_OUTPUT |
+ SNDRV_RAWMIDI_INFO_DUPLEX;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
+ &capture_ops);
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
+ set_midi_substream_names(motu, str);
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
+ &playback_ops);
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
+ set_midi_substream_names(motu, str);
+
+ return 0;
+}