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9#include "fireworks.h"
10
11static int midi_capture_open(struct snd_rawmidi_substream *substream)
12{
13 struct snd_efw *efw = substream->rmidi->private_data;
14 int err;
15
16 err = snd_efw_stream_lock_try(efw);
17 if (err < 0)
18 goto end;
19
20 atomic_inc(&efw->capture_substreams);
21 err = snd_efw_stream_start_duplex(efw, 0);
22 if (err < 0)
23 snd_efw_stream_lock_release(efw);
24
25end:
26 return err;
27}
28
29static int midi_playback_open(struct snd_rawmidi_substream *substream)
30{
31 struct snd_efw *efw = substream->rmidi->private_data;
32 int err;
33
34 err = snd_efw_stream_lock_try(efw);
35 if (err < 0)
36 goto end;
37
38 atomic_inc(&efw->playback_substreams);
39 err = snd_efw_stream_start_duplex(efw, 0);
40 if (err < 0)
41 snd_efw_stream_lock_release(efw);
42end:
43 return err;
44}
45
46static int midi_capture_close(struct snd_rawmidi_substream *substream)
47{
48 struct snd_efw *efw = substream->rmidi->private_data;
49
50 atomic_dec(&efw->capture_substreams);
51 snd_efw_stream_stop_duplex(efw);
52
53 snd_efw_stream_lock_release(efw);
54 return 0;
55}
56
57static int midi_playback_close(struct snd_rawmidi_substream *substream)
58{
59 struct snd_efw *efw = substream->rmidi->private_data;
60
61 atomic_dec(&efw->playback_substreams);
62 snd_efw_stream_stop_duplex(efw);
63
64 snd_efw_stream_lock_release(efw);
65 return 0;
66}
67
68static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
69{
70 struct snd_efw *efw = substrm->rmidi->private_data;
71 unsigned long flags;
72
73 spin_lock_irqsave(&efw->lock, flags);
74
75 if (up)
76 amdtp_stream_midi_trigger(&efw->tx_stream,
77 substrm->number, substrm);
78 else
79 amdtp_stream_midi_trigger(&efw->tx_stream,
80 substrm->number, NULL);
81
82 spin_unlock_irqrestore(&efw->lock, flags);
83}
84
85static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
86{
87 struct snd_efw *efw = substrm->rmidi->private_data;
88 unsigned long flags;
89
90 spin_lock_irqsave(&efw->lock, flags);
91
92 if (up)
93 amdtp_stream_midi_trigger(&efw->rx_stream,
94 substrm->number, substrm);
95 else
96 amdtp_stream_midi_trigger(&efw->rx_stream,
97 substrm->number, NULL);
98
99 spin_unlock_irqrestore(&efw->lock, flags);
100}
101
102static struct snd_rawmidi_ops midi_capture_ops = {
103 .open = midi_capture_open,
104 .close = midi_capture_close,
105 .trigger = midi_capture_trigger,
106};
107
108static struct snd_rawmidi_ops midi_playback_ops = {
109 .open = midi_playback_open,
110 .close = midi_playback_close,
111 .trigger = midi_playback_trigger,
112};
113
114static void set_midi_substream_names(struct snd_efw *efw,
115 struct snd_rawmidi_str *str)
116{
117 struct snd_rawmidi_substream *subs;
118
119 list_for_each_entry(subs, &str->substreams, list) {
120 snprintf(subs->name, sizeof(subs->name),
121 "%s MIDI %d", efw->card->shortname, subs->number + 1);
122 }
123}
124
125int snd_efw_create_midi_devices(struct snd_efw *efw)
126{
127 struct snd_rawmidi *rmidi;
128 struct snd_rawmidi_str *str;
129 int err;
130
131
132 err = snd_rawmidi_new(efw->card, efw->card->driver, 0,
133 efw->midi_out_ports, efw->midi_in_ports,
134 &rmidi);
135 if (err < 0)
136 return err;
137
138 snprintf(rmidi->name, sizeof(rmidi->name),
139 "%s MIDI", efw->card->shortname);
140 rmidi->private_data = efw;
141
142 if (efw->midi_in_ports > 0) {
143 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
144
145 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
146 &midi_capture_ops);
147
148 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
149
150 set_midi_substream_names(efw, str);
151 }
152
153 if (efw->midi_out_ports > 0) {
154 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
155
156 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
157 &midi_playback_ops);
158
159 str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
160
161 set_midi_substream_names(efw, str);
162 }
163
164 if ((efw->midi_out_ports > 0) && (efw->midi_in_ports > 0))
165 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX;
166
167 return 0;
168}
169
