[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/firewire/oxfw/oxfw-midi.c b/src/kernel/linux/v4.14/sound/firewire/oxfw/oxfw-midi.c
new file mode 100644
index 0000000..b7bbd77
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/firewire/oxfw/oxfw-midi.c
@@ -0,0 +1,187 @@
+/*
+ * oxfw_midi.c - a part of driver for OXFW970/971 based devices
+ *
+ * Copyright (c) 2014 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "oxfw.h"
+
+static int midi_capture_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_oxfw *oxfw = substream->rmidi->private_data;
+ int err;
+
+ err = snd_oxfw_stream_lock_try(oxfw);
+ if (err < 0)
+ return err;
+
+ mutex_lock(&oxfw->mutex);
+
+ oxfw->capture_substreams++;
+ err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0);
+
+ mutex_unlock(&oxfw->mutex);
+
+ if (err < 0)
+ snd_oxfw_stream_lock_release(oxfw);
+
+ return err;
+}
+
+static int midi_playback_open(struct snd_rawmidi_substream *substream)
+{
+ struct snd_oxfw *oxfw = substream->rmidi->private_data;
+ int err;
+
+ err = snd_oxfw_stream_lock_try(oxfw);
+ if (err < 0)
+ return err;
+
+ mutex_lock(&oxfw->mutex);
+
+ oxfw->playback_substreams++;
+ err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0);
+
+ mutex_unlock(&oxfw->mutex);
+
+ if (err < 0)
+ snd_oxfw_stream_lock_release(oxfw);
+
+ return err;
+}
+
+static int midi_capture_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_oxfw *oxfw = substream->rmidi->private_data;
+
+ mutex_lock(&oxfw->mutex);
+
+ oxfw->capture_substreams--;
+ snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream);
+
+ mutex_unlock(&oxfw->mutex);
+
+ snd_oxfw_stream_lock_release(oxfw);
+ return 0;
+}
+
+static int midi_playback_close(struct snd_rawmidi_substream *substream)
+{
+ struct snd_oxfw *oxfw = substream->rmidi->private_data;
+
+ mutex_lock(&oxfw->mutex);
+
+ oxfw->playback_substreams--;
+ snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream);
+
+ mutex_unlock(&oxfw->mutex);
+
+ snd_oxfw_stream_lock_release(oxfw);
+ return 0;
+}
+
+static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_oxfw *oxfw = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&oxfw->lock, flags);
+
+ if (up)
+ amdtp_am824_midi_trigger(&oxfw->tx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_am824_midi_trigger(&oxfw->tx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&oxfw->lock, flags);
+}
+
+static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
+{
+ struct snd_oxfw *oxfw = substrm->rmidi->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&oxfw->lock, flags);
+
+ if (up)
+ amdtp_am824_midi_trigger(&oxfw->rx_stream,
+ substrm->number, substrm);
+ else
+ amdtp_am824_midi_trigger(&oxfw->rx_stream,
+ substrm->number, NULL);
+
+ spin_unlock_irqrestore(&oxfw->lock, flags);
+}
+
+static void set_midi_substream_names(struct snd_oxfw *oxfw,
+ 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",
+ oxfw->card->shortname, subs->number + 1);
+ }
+}
+
+int snd_oxfw_create_midi(struct snd_oxfw *oxfw)
+{
+ 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;
+
+ if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0)
+ return 0;
+
+ /* create midi ports */
+ err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0,
+ oxfw->midi_output_ports, oxfw->midi_input_ports,
+ &rmidi);
+ if (err < 0)
+ return err;
+
+ snprintf(rmidi->name, sizeof(rmidi->name),
+ "%s MIDI", oxfw->card->shortname);
+ rmidi->private_data = oxfw;
+
+ if (oxfw->midi_input_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
+ &capture_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
+
+ set_midi_substream_names(oxfw, str);
+ }
+
+ if (oxfw->midi_output_ports > 0) {
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
+
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
+ &playback_ops);
+
+ str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
+
+ set_midi_substream_names(oxfw, str);
+ }
+
+ if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0))
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
+
+ return 0;
+}