1 // SPDX-License-Identifier: GPL-2.0-only
3 * fireworks_midi.c - a part of driver for Fireworks based devices
5 * Copyright (c) 2009-2010 Clemens Ladisch
6 * Copyright (c) 2013-2014 Takashi Sakamoto
10 static int midi_open(struct snd_rawmidi_substream *substream)
12 struct snd_efw *efw = substream->rmidi->private_data;
15 err = snd_efw_stream_lock_try(efw);
19 mutex_lock(&efw->mutex);
20 err = snd_efw_stream_reserve_duplex(efw, 0, 0, 0);
22 ++efw->substreams_counter;
23 err = snd_efw_stream_start_duplex(efw);
25 --efw->substreams_counter;
27 mutex_unlock(&efw->mutex);
29 snd_efw_stream_lock_release(efw);
34 static int midi_close(struct snd_rawmidi_substream *substream)
36 struct snd_efw *efw = substream->rmidi->private_data;
38 mutex_lock(&efw->mutex);
39 --efw->substreams_counter;
40 snd_efw_stream_stop_duplex(efw);
41 mutex_unlock(&efw->mutex);
43 snd_efw_stream_lock_release(efw);
47 static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
49 struct snd_efw *efw = substrm->rmidi->private_data;
52 spin_lock_irqsave(&efw->lock, flags);
55 amdtp_am824_midi_trigger(&efw->tx_stream,
56 substrm->number, substrm);
58 amdtp_am824_midi_trigger(&efw->tx_stream,
59 substrm->number, NULL);
61 spin_unlock_irqrestore(&efw->lock, flags);
64 static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
66 struct snd_efw *efw = substrm->rmidi->private_data;
69 spin_lock_irqsave(&efw->lock, flags);
72 amdtp_am824_midi_trigger(&efw->rx_stream,
73 substrm->number, substrm);
75 amdtp_am824_midi_trigger(&efw->rx_stream,
76 substrm->number, NULL);
78 spin_unlock_irqrestore(&efw->lock, flags);
81 static void set_midi_substream_names(struct snd_efw *efw,
82 struct snd_rawmidi_str *str)
84 struct snd_rawmidi_substream *subs;
86 list_for_each_entry(subs, &str->substreams, list) {
87 snprintf(subs->name, sizeof(subs->name),
88 "%s MIDI %d", efw->card->shortname, subs->number + 1);
92 int snd_efw_create_midi_devices(struct snd_efw *efw)
94 static const struct snd_rawmidi_ops capture_ops = {
97 .trigger = midi_capture_trigger,
99 static const struct snd_rawmidi_ops playback_ops = {
102 .trigger = midi_playback_trigger,
104 struct snd_rawmidi *rmidi;
105 struct snd_rawmidi_str *str;
108 /* create midi ports */
109 err = snd_rawmidi_new(efw->card, efw->card->driver, 0,
110 efw->midi_out_ports, efw->midi_in_ports,
115 snprintf(rmidi->name, sizeof(rmidi->name),
116 "%s MIDI", efw->card->shortname);
117 rmidi->private_data = efw;
119 if (efw->midi_in_ports > 0) {
120 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
122 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
125 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
127 set_midi_substream_names(efw, str);
130 if (efw->midi_out_ports > 0) {
131 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
133 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
136 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
138 set_midi_substream_names(efw, str);
141 if ((efw->midi_out_ports > 0) && (efw->midi_in_ports > 0))
142 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;