Commit | Line | Data |
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05588d34 TS |
1 | /* |
2 | * oxfw_midi.c - a part of driver for OXFW970/971 based devices | |
3 | * | |
4 | * Copyright (c) 2014 Takashi Sakamoto | |
5 | * | |
6 | * Licensed under the terms of the GNU General Public License, version 2. | |
7 | */ | |
8 | ||
9 | #include "oxfw.h" | |
10 | ||
11 | static int midi_capture_open(struct snd_rawmidi_substream *substream) | |
12 | { | |
13 | struct snd_oxfw *oxfw = substream->rmidi->private_data; | |
14 | int err; | |
15 | ||
8985f4ac TS |
16 | err = snd_oxfw_stream_lock_try(oxfw); |
17 | if (err < 0) | |
18 | return err; | |
19 | ||
05588d34 TS |
20 | mutex_lock(&oxfw->mutex); |
21 | ||
22 | oxfw->capture_substreams++; | |
23 | err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0); | |
24 | ||
25 | mutex_unlock(&oxfw->mutex); | |
26 | ||
8985f4ac TS |
27 | if (err < 0) |
28 | snd_oxfw_stream_lock_release(oxfw); | |
29 | ||
05588d34 TS |
30 | return err; |
31 | } | |
32 | ||
33 | static int midi_playback_open(struct snd_rawmidi_substream *substream) | |
34 | { | |
35 | struct snd_oxfw *oxfw = substream->rmidi->private_data; | |
36 | int err; | |
37 | ||
8985f4ac TS |
38 | err = snd_oxfw_stream_lock_try(oxfw); |
39 | if (err < 0) | |
40 | return err; | |
41 | ||
05588d34 TS |
42 | mutex_lock(&oxfw->mutex); |
43 | ||
44 | oxfw->playback_substreams++; | |
45 | err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0); | |
46 | ||
47 | mutex_unlock(&oxfw->mutex); | |
48 | ||
8985f4ac TS |
49 | if (err < 0) |
50 | snd_oxfw_stream_lock_release(oxfw); | |
51 | ||
05588d34 TS |
52 | return err; |
53 | } | |
54 | ||
55 | static int midi_capture_close(struct snd_rawmidi_substream *substream) | |
56 | { | |
57 | struct snd_oxfw *oxfw = substream->rmidi->private_data; | |
58 | ||
59 | mutex_lock(&oxfw->mutex); | |
60 | ||
61 | oxfw->capture_substreams--; | |
62 | snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream); | |
63 | ||
64 | mutex_unlock(&oxfw->mutex); | |
65 | ||
8985f4ac | 66 | snd_oxfw_stream_lock_release(oxfw); |
05588d34 TS |
67 | return 0; |
68 | } | |
69 | ||
70 | static int midi_playback_close(struct snd_rawmidi_substream *substream) | |
71 | { | |
72 | struct snd_oxfw *oxfw = substream->rmidi->private_data; | |
73 | ||
74 | mutex_lock(&oxfw->mutex); | |
75 | ||
76 | oxfw->playback_substreams--; | |
77 | snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream); | |
78 | ||
79 | mutex_unlock(&oxfw->mutex); | |
80 | ||
8985f4ac | 81 | snd_oxfw_stream_lock_release(oxfw); |
05588d34 TS |
82 | return 0; |
83 | } | |
84 | ||
85 | static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) | |
86 | { | |
87 | struct snd_oxfw *oxfw = substrm->rmidi->private_data; | |
88 | unsigned long flags; | |
89 | ||
90 | spin_lock_irqsave(&oxfw->lock, flags); | |
91 | ||
92 | if (up) | |
03e2a67e TS |
93 | amdtp_am824_midi_trigger(&oxfw->tx_stream, |
94 | substrm->number, substrm); | |
05588d34 | 95 | else |
03e2a67e TS |
96 | amdtp_am824_midi_trigger(&oxfw->tx_stream, |
97 | substrm->number, NULL); | |
05588d34 TS |
98 | |
99 | spin_unlock_irqrestore(&oxfw->lock, flags); | |
100 | } | |
101 | ||
102 | static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) | |
103 | { | |
104 | struct snd_oxfw *oxfw = substrm->rmidi->private_data; | |
105 | unsigned long flags; | |
106 | ||
107 | spin_lock_irqsave(&oxfw->lock, flags); | |
108 | ||
109 | if (up) | |
03e2a67e TS |
110 | amdtp_am824_midi_trigger(&oxfw->rx_stream, |
111 | substrm->number, substrm); | |
05588d34 | 112 | else |
03e2a67e TS |
113 | amdtp_am824_midi_trigger(&oxfw->rx_stream, |
114 | substrm->number, NULL); | |
05588d34 TS |
115 | |
116 | spin_unlock_irqrestore(&oxfw->lock, flags); | |
117 | } | |
118 | ||
119 | static struct snd_rawmidi_ops midi_capture_ops = { | |
120 | .open = midi_capture_open, | |
121 | .close = midi_capture_close, | |
122 | .trigger = midi_capture_trigger, | |
123 | }; | |
124 | ||
125 | static struct snd_rawmidi_ops midi_playback_ops = { | |
126 | .open = midi_playback_open, | |
127 | .close = midi_playback_close, | |
128 | .trigger = midi_playback_trigger, | |
129 | }; | |
130 | ||
131 | static void set_midi_substream_names(struct snd_oxfw *oxfw, | |
132 | struct snd_rawmidi_str *str) | |
133 | { | |
134 | struct snd_rawmidi_substream *subs; | |
135 | ||
136 | list_for_each_entry(subs, &str->substreams, list) { | |
137 | snprintf(subs->name, sizeof(subs->name), | |
138 | "%s MIDI %d", | |
139 | oxfw->card->shortname, subs->number + 1); | |
140 | } | |
141 | } | |
142 | ||
143 | int snd_oxfw_create_midi(struct snd_oxfw *oxfw) | |
144 | { | |
05588d34 TS |
145 | struct snd_rawmidi *rmidi; |
146 | struct snd_rawmidi_str *str; | |
32056041 TS |
147 | int err; |
148 | ||
149 | if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0) | |
05588d34 TS |
150 | return 0; |
151 | ||
152 | /* create midi ports */ | |
153 | err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0, | |
154 | oxfw->midi_output_ports, oxfw->midi_input_ports, | |
155 | &rmidi); | |
156 | if (err < 0) | |
157 | return err; | |
158 | ||
159 | snprintf(rmidi->name, sizeof(rmidi->name), | |
160 | "%s MIDI", oxfw->card->shortname); | |
161 | rmidi->private_data = oxfw; | |
162 | ||
163 | if (oxfw->midi_input_ports > 0) { | |
164 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; | |
165 | ||
166 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
167 | &midi_capture_ops); | |
168 | ||
169 | str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; | |
170 | ||
171 | set_midi_substream_names(oxfw, str); | |
172 | } | |
173 | ||
174 | if (oxfw->midi_output_ports > 0) { | |
175 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; | |
176 | ||
177 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, | |
178 | &midi_playback_ops); | |
179 | ||
180 | str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; | |
181 | ||
182 | set_midi_substream_names(oxfw, str); | |
183 | } | |
184 | ||
185 | if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0)) | |
186 | rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; | |
187 | ||
188 | return 0; | |
189 | } |