1 // SPDX-License-Identifier: GPL-2.0-only
3 * motu-midi.h - a part of driver for MOTU FireWire series
5 * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
9 static int midi_open(struct snd_rawmidi_substream *substream)
11 struct snd_motu *motu = substream->rmidi->private_data;
14 err = snd_motu_stream_lock_try(motu);
18 mutex_lock(&motu->mutex);
20 err = snd_motu_stream_reserve_duplex(motu, 0, 0, 0);
22 ++motu->substreams_counter;
23 err = snd_motu_stream_start_duplex(motu);
25 --motu->substreams_counter;
28 mutex_unlock(&motu->mutex);
31 snd_motu_stream_lock_release(motu);
36 static int midi_close(struct snd_rawmidi_substream *substream)
38 struct snd_motu *motu = substream->rmidi->private_data;
40 mutex_lock(&motu->mutex);
42 --motu->substreams_counter;
43 snd_motu_stream_stop_duplex(motu);
45 mutex_unlock(&motu->mutex);
47 snd_motu_stream_lock_release(motu);
51 static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
53 struct snd_motu *motu = substrm->rmidi->private_data;
56 spin_lock_irqsave(&motu->lock, flags);
59 amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
62 amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
65 spin_unlock_irqrestore(&motu->lock, flags);
68 static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
70 struct snd_motu *motu = substrm->rmidi->private_data;
73 spin_lock_irqsave(&motu->lock, flags);
76 amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
79 amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
82 spin_unlock_irqrestore(&motu->lock, flags);
85 static void set_midi_substream_names(struct snd_motu *motu,
86 struct snd_rawmidi_str *str)
88 struct snd_rawmidi_substream *subs;
90 list_for_each_entry(subs, &str->substreams, list) {
91 snprintf(subs->name, sizeof(subs->name),
92 "%s MIDI %d", motu->card->shortname, subs->number + 1);
96 int snd_motu_create_midi_devices(struct snd_motu *motu)
98 static const struct snd_rawmidi_ops capture_ops = {
101 .trigger = midi_capture_trigger,
103 static const struct snd_rawmidi_ops playback_ops = {
106 .trigger = midi_playback_trigger,
108 struct snd_rawmidi *rmidi;
109 struct snd_rawmidi_str *str;
112 /* create midi ports */
113 err = snd_rawmidi_new(motu->card, motu->card->driver, 0, 1, 1, &rmidi);
117 snprintf(rmidi->name, sizeof(rmidi->name),
118 "%s MIDI", motu->card->shortname);
119 rmidi->private_data = motu;
121 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT |
122 SNDRV_RAWMIDI_INFO_OUTPUT |
123 SNDRV_RAWMIDI_INFO_DUPLEX;
125 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
127 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
128 set_midi_substream_names(motu, str);
130 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
132 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
133 set_midi_substream_names(motu, str);