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9#include "oxfw.h"
10
11static int midi_capture_open(struct snd_rawmidi_substream *substream)
12{
13 struct snd_oxfw *oxfw = substream->rmidi->private_data;
14 int err;
15
16 err = snd_oxfw_stream_lock_try(oxfw);
17 if (err < 0)
18 return err;
19
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
27 if (err < 0)
28 snd_oxfw_stream_lock_release(oxfw);
29
30 return err;
31}
32
33static int midi_playback_open(struct snd_rawmidi_substream *substream)
34{
35 struct snd_oxfw *oxfw = substream->rmidi->private_data;
36 int err;
37
38 err = snd_oxfw_stream_lock_try(oxfw);
39 if (err < 0)
40 return err;
41
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
49 if (err < 0)
50 snd_oxfw_stream_lock_release(oxfw);
51
52 return err;
53}
54
55static 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
66 snd_oxfw_stream_lock_release(oxfw);
67 return 0;
68}
69
70static 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
81 snd_oxfw_stream_lock_release(oxfw);
82 return 0;
83}
84
85static 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)
93 amdtp_am824_midi_trigger(&oxfw->tx_stream,
94 substrm->number, substrm);
95 else
96 amdtp_am824_midi_trigger(&oxfw->tx_stream,
97 substrm->number, NULL);
98
99 spin_unlock_irqrestore(&oxfw->lock, flags);
100}
101
102static 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)
110 amdtp_am824_midi_trigger(&oxfw->rx_stream,
111 substrm->number, substrm);
112 else
113 amdtp_am824_midi_trigger(&oxfw->rx_stream,
114 substrm->number, NULL);
115
116 spin_unlock_irqrestore(&oxfw->lock, flags);
117}
118
119static void set_midi_substream_names(struct snd_oxfw *oxfw,
120 struct snd_rawmidi_str *str)
121{
122 struct snd_rawmidi_substream *subs;
123
124 list_for_each_entry(subs, &str->substreams, list) {
125 snprintf(subs->name, sizeof(subs->name),
126 "%s MIDI %d",
127 oxfw->card->shortname, subs->number + 1);
128 }
129}
130
131int snd_oxfw_create_midi(struct snd_oxfw *oxfw)
132{
133 static const struct snd_rawmidi_ops capture_ops = {
134 .open = midi_capture_open,
135 .close = midi_capture_close,
136 .trigger = midi_capture_trigger,
137 };
138 static const struct snd_rawmidi_ops playback_ops = {
139 .open = midi_playback_open,
140 .close = midi_playback_close,
141 .trigger = midi_playback_trigger,
142 };
143 struct snd_rawmidi *rmidi;
144 struct snd_rawmidi_str *str;
145 int err;
146
147 if (oxfw->midi_input_ports == 0 && oxfw->midi_output_ports == 0)
148 return 0;
149
150
151 err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0,
152 oxfw->midi_output_ports, oxfw->midi_input_ports,
153 &rmidi);
154 if (err < 0)
155 return err;
156
157 snprintf(rmidi->name, sizeof(rmidi->name),
158 "%s MIDI", oxfw->card->shortname);
159 rmidi->private_data = oxfw;
160
161 if (oxfw->midi_input_ports > 0) {
162 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
163
164 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
165 &capture_ops);
166
167 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
168
169 set_midi_substream_names(oxfw, str);
170 }
171
172 if (oxfw->midi_output_ports > 0) {
173 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
174
175 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
176 &playback_ops);
177
178 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
179
180 set_midi_substream_names(oxfw, str);
181 }
182
183 if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0))
184 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
185
186 return 0;
187}
188
