1 // SPDX-License-Identifier: GPL-2.0-only
3 * digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family
5 * Copyright (c) 2014-2015 Takashi Sakamoto
10 static int midi_open(struct snd_rawmidi_substream *substream)
12 struct snd_dg00x *dg00x = substream->rmidi->private_data;
15 err = snd_dg00x_stream_lock_try(dg00x);
19 mutex_lock(&dg00x->mutex);
20 err = snd_dg00x_stream_reserve_duplex(dg00x, 0, 0, 0);
22 ++dg00x->substreams_counter;
23 err = snd_dg00x_stream_start_duplex(dg00x);
25 --dg00x->substreams_counter;
27 mutex_unlock(&dg00x->mutex);
29 snd_dg00x_stream_lock_release(dg00x);
34 static int midi_close(struct snd_rawmidi_substream *substream)
36 struct snd_dg00x *dg00x = substream->rmidi->private_data;
38 mutex_lock(&dg00x->mutex);
39 --dg00x->substreams_counter;
40 snd_dg00x_stream_stop_duplex(dg00x);
41 mutex_unlock(&dg00x->mutex);
43 snd_dg00x_stream_lock_release(dg00x);
47 static void midi_capture_trigger(struct snd_rawmidi_substream *substream,
50 struct snd_dg00x *dg00x = substream->rmidi->private_data;
54 if (substream->rmidi->device == 0)
55 port = substream->number;
59 spin_lock_irqsave(&dg00x->lock, flags);
62 amdtp_dot_midi_trigger(&dg00x->tx_stream, port, substream);
64 amdtp_dot_midi_trigger(&dg00x->tx_stream, port, NULL);
66 spin_unlock_irqrestore(&dg00x->lock, flags);
69 static void midi_playback_trigger(struct snd_rawmidi_substream *substream,
72 struct snd_dg00x *dg00x = substream->rmidi->private_data;
76 if (substream->rmidi->device == 0)
77 port = substream->number;
81 spin_lock_irqsave(&dg00x->lock, flags);
84 amdtp_dot_midi_trigger(&dg00x->rx_stream, port, substream);
86 amdtp_dot_midi_trigger(&dg00x->rx_stream, port, NULL);
88 spin_unlock_irqrestore(&dg00x->lock, flags);
91 static void set_substream_names(struct snd_dg00x *dg00x,
92 struct snd_rawmidi *rmidi, bool is_console)
94 struct snd_rawmidi_substream *subs;
95 struct snd_rawmidi_str *str;
98 for (i = 0; i < 2; ++i) {
99 str = &rmidi->streams[i];
101 list_for_each_entry(subs, &str->substreams, list) {
103 scnprintf(subs->name, sizeof(subs->name),
105 dg00x->card->shortname,
108 scnprintf(subs->name, sizeof(subs->name),
110 dg00x->card->shortname);
116 static int add_substream_pair(struct snd_dg00x *dg00x, unsigned int out_ports,
117 unsigned int in_ports, bool is_console)
119 static const struct snd_rawmidi_ops capture_ops = {
122 .trigger = midi_capture_trigger,
124 static const struct snd_rawmidi_ops playback_ops = {
127 .trigger = midi_playback_trigger,
130 struct snd_rawmidi *rmidi;
133 /* Add physical midi ports. */
134 err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, is_console,
135 out_ports, in_ports, &rmidi);
138 rmidi->private_data = dg00x;
141 label = "%s control";
144 snprintf(rmidi->name, sizeof(rmidi->name), label,
145 dg00x->card->shortname);
147 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &playback_ops);
148 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &capture_ops);
150 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT |
151 SNDRV_RAWMIDI_INFO_OUTPUT |
152 SNDRV_RAWMIDI_INFO_DUPLEX;
154 set_substream_names(dg00x, rmidi, is_console);
159 int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x)
163 /* Add physical midi ports. */
164 err = add_substream_pair(dg00x, DOT_MIDI_OUT_PORTS, DOT_MIDI_IN_PORTS,
169 if (dg00x->is_console)
170 err = add_substream_pair(dg00x, 1, 1, true);