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1 | #ifndef __SOUND_SEQ_VIRMIDI_H |
2 | #define __SOUND_SEQ_VIRMIDI_H |
3 | |
4 | /* |
5 | * Virtual Raw MIDI client on Sequencer |
6 | * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>, |
7 | * Jaroslav Kysela <perex@perex.cz> |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | * |
23 | */ |
24 | |
25 | #include <sound/rawmidi.h> |
26 | #include <sound/seq_midi_event.h> |
27 | |
28 | /* |
29 | * device file instance: |
30 | * This instance is created at each time the midi device file is |
31 | * opened. Each instance has its own input buffer and MIDI parser |
32 | * (buffer), and is associated with the device instance. |
33 | */ |
34 | struct snd_virmidi { |
35 | struct list_head list; |
36 | int seq_mode; |
37 | int client; |
38 | int port; |
39 | unsigned int trigger: 1; |
40 | struct snd_midi_event *parser; |
41 | struct snd_seq_event event; |
42 | struct snd_virmidi_dev *rdev; |
43 | struct snd_rawmidi_substream *substream; |
44 | }; |
45 | |
46 | #define SNDRV_VIRMIDI_SUBSCRIBE (1<<0) |
47 | #define SNDRV_VIRMIDI_USE (1<<1) |
48 | |
49 | /* |
50 | * device record: |
51 | * Each virtual midi device has one device instance. It contains |
52 | * common information and the linked-list of opened files, |
53 | */ |
54 | struct snd_virmidi_dev { |
55 | struct snd_card *card; /* associated card */ |
56 | struct snd_rawmidi *rmidi; /* rawmidi device */ |
57 | int seq_mode; /* SNDRV_VIRMIDI_XXX */ |
58 | int device; /* sequencer device */ |
59 | int client; /* created/attached client */ |
60 | int port; /* created/attached port */ |
61 | unsigned int flags; /* SNDRV_VIRMIDI_* */ |
62 | rwlock_t filelist_lock; |
63 | struct list_head filelist; |
64 | }; |
65 | |
66 | /* sequencer mode: |
67 | * ATTACH = input/output events from midi device are routed to the |
68 | * attached sequencer port. sequencer port is not created |
69 | * by virmidi itself. |
70 | * the input to rawmidi must be processed by passing the |
71 | * incoming events via snd_virmidi_receive() |
72 | * DISPATCH = input/output events are routed to subscribers. |
73 | * sequencer port is created in virmidi. |
74 | */ |
75 | #define SNDRV_VIRMIDI_SEQ_NONE 0 |
76 | #define SNDRV_VIRMIDI_SEQ_ATTACH 1 |
77 | #define SNDRV_VIRMIDI_SEQ_DISPATCH 2 |
78 | |
79 | int snd_virmidi_new(struct snd_card *card, int device, struct snd_rawmidi **rrmidi); |
80 | |
81 | #endif /* __SOUND_SEQ_VIRMIDI */ |
82 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9