1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * motu-midi.h - a part of driver for MOTU FireWire series
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include "motu.h"
8*4882a593Smuzhiyun
midi_open(struct snd_rawmidi_substream * substream)9*4882a593Smuzhiyun static int midi_open(struct snd_rawmidi_substream *substream)
10*4882a593Smuzhiyun {
11*4882a593Smuzhiyun struct snd_motu *motu = substream->rmidi->private_data;
12*4882a593Smuzhiyun int err;
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun err = snd_motu_stream_lock_try(motu);
15*4882a593Smuzhiyun if (err < 0)
16*4882a593Smuzhiyun return err;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun mutex_lock(&motu->mutex);
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun err = snd_motu_stream_reserve_duplex(motu, 0, 0, 0);
21*4882a593Smuzhiyun if (err >= 0) {
22*4882a593Smuzhiyun ++motu->substreams_counter;
23*4882a593Smuzhiyun err = snd_motu_stream_start_duplex(motu);
24*4882a593Smuzhiyun if (err < 0)
25*4882a593Smuzhiyun --motu->substreams_counter;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun mutex_unlock(&motu->mutex);
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun if (err < 0)
31*4882a593Smuzhiyun snd_motu_stream_lock_release(motu);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun return err;
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
midi_close(struct snd_rawmidi_substream * substream)36*4882a593Smuzhiyun static int midi_close(struct snd_rawmidi_substream *substream)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun struct snd_motu *motu = substream->rmidi->private_data;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun mutex_lock(&motu->mutex);
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun --motu->substreams_counter;
43*4882a593Smuzhiyun snd_motu_stream_stop_duplex(motu);
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun mutex_unlock(&motu->mutex);
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun snd_motu_stream_lock_release(motu);
48*4882a593Smuzhiyun return 0;
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
midi_capture_trigger(struct snd_rawmidi_substream * substrm,int up)51*4882a593Smuzhiyun static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun struct snd_motu *motu = substrm->rmidi->private_data;
54*4882a593Smuzhiyun unsigned long flags;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun spin_lock_irqsave(&motu->lock, flags);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun if (up)
59*4882a593Smuzhiyun amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
60*4882a593Smuzhiyun substrm);
61*4882a593Smuzhiyun else
62*4882a593Smuzhiyun amdtp_motu_midi_trigger(&motu->tx_stream, substrm->number,
63*4882a593Smuzhiyun NULL);
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun spin_unlock_irqrestore(&motu->lock, flags);
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
midi_playback_trigger(struct snd_rawmidi_substream * substrm,int up)68*4882a593Smuzhiyun static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun struct snd_motu *motu = substrm->rmidi->private_data;
71*4882a593Smuzhiyun unsigned long flags;
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun spin_lock_irqsave(&motu->lock, flags);
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun if (up)
76*4882a593Smuzhiyun amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
77*4882a593Smuzhiyun substrm);
78*4882a593Smuzhiyun else
79*4882a593Smuzhiyun amdtp_motu_midi_trigger(&motu->rx_stream, substrm->number,
80*4882a593Smuzhiyun NULL);
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun spin_unlock_irqrestore(&motu->lock, flags);
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
set_midi_substream_names(struct snd_motu * motu,struct snd_rawmidi_str * str)85*4882a593Smuzhiyun static void set_midi_substream_names(struct snd_motu *motu,
86*4882a593Smuzhiyun struct snd_rawmidi_str *str)
87*4882a593Smuzhiyun {
88*4882a593Smuzhiyun struct snd_rawmidi_substream *subs;
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun list_for_each_entry(subs, &str->substreams, list) {
91*4882a593Smuzhiyun snprintf(subs->name, sizeof(subs->name),
92*4882a593Smuzhiyun "%s MIDI %d", motu->card->shortname, subs->number + 1);
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun }
95*4882a593Smuzhiyun
snd_motu_create_midi_devices(struct snd_motu * motu)96*4882a593Smuzhiyun int snd_motu_create_midi_devices(struct snd_motu *motu)
97*4882a593Smuzhiyun {
98*4882a593Smuzhiyun static const struct snd_rawmidi_ops capture_ops = {
99*4882a593Smuzhiyun .open = midi_open,
100*4882a593Smuzhiyun .close = midi_close,
101*4882a593Smuzhiyun .trigger = midi_capture_trigger,
102*4882a593Smuzhiyun };
103*4882a593Smuzhiyun static const struct snd_rawmidi_ops playback_ops = {
104*4882a593Smuzhiyun .open = midi_open,
105*4882a593Smuzhiyun .close = midi_close,
106*4882a593Smuzhiyun .trigger = midi_playback_trigger,
107*4882a593Smuzhiyun };
108*4882a593Smuzhiyun struct snd_rawmidi *rmidi;
109*4882a593Smuzhiyun struct snd_rawmidi_str *str;
110*4882a593Smuzhiyun int err;
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun /* create midi ports */
113*4882a593Smuzhiyun err = snd_rawmidi_new(motu->card, motu->card->driver, 0, 1, 1, &rmidi);
114*4882a593Smuzhiyun if (err < 0)
115*4882a593Smuzhiyun return err;
116*4882a593Smuzhiyun
117*4882a593Smuzhiyun snprintf(rmidi->name, sizeof(rmidi->name),
118*4882a593Smuzhiyun "%s MIDI", motu->card->shortname);
119*4882a593Smuzhiyun rmidi->private_data = motu;
120*4882a593Smuzhiyun
121*4882a593Smuzhiyun rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT |
122*4882a593Smuzhiyun SNDRV_RAWMIDI_INFO_OUTPUT |
123*4882a593Smuzhiyun SNDRV_RAWMIDI_INFO_DUPLEX;
124*4882a593Smuzhiyun
125*4882a593Smuzhiyun snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
126*4882a593Smuzhiyun &capture_ops);
127*4882a593Smuzhiyun str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
128*4882a593Smuzhiyun set_midi_substream_names(motu, str);
129*4882a593Smuzhiyun
130*4882a593Smuzhiyun snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
131*4882a593Smuzhiyun &playback_ops);
132*4882a593Smuzhiyun str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
133*4882a593Smuzhiyun set_midi_substream_names(motu, str);
134*4882a593Smuzhiyun
135*4882a593Smuzhiyun return 0;
136*4882a593Smuzhiyun }
137