diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/sound/seq_device.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/sound/seq_device.h')
-rw-r--r-- | include/sound/seq_device.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/include/sound/seq_device.h b/include/sound/seq_device.h new file mode 100644 index 000000000000..204ca540c28e --- /dev/null +++ b/include/sound/seq_device.h | |||
@@ -0,0 +1,88 @@ | |||
1 | #ifndef __SOUND_SEQ_DEVICE_H | ||
2 | #define __SOUND_SEQ_DEVICE_H | ||
3 | |||
4 | /* | ||
5 | * ALSA sequencer device management | ||
6 | * Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | * GNU General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public License | ||
19 | * along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 | * | ||
22 | */ | ||
23 | |||
24 | typedef struct snd_seq_device snd_seq_device_t; | ||
25 | typedef struct snd_seq_dev_ops snd_seq_dev_ops_t; | ||
26 | |||
27 | /* | ||
28 | * registered device information | ||
29 | */ | ||
30 | |||
31 | #define ID_LEN 32 | ||
32 | |||
33 | /* status flag */ | ||
34 | #define SNDRV_SEQ_DEVICE_FREE 0 | ||
35 | #define SNDRV_SEQ_DEVICE_REGISTERED 1 | ||
36 | |||
37 | struct snd_seq_device { | ||
38 | /* device info */ | ||
39 | snd_card_t *card; /* sound card */ | ||
40 | int device; /* device number */ | ||
41 | char id[ID_LEN]; /* driver id */ | ||
42 | char name[80]; /* device name */ | ||
43 | int argsize; /* size of the argument */ | ||
44 | void *driver_data; /* private data for driver */ | ||
45 | int status; /* flag - read only */ | ||
46 | void *private_data; /* private data for the caller */ | ||
47 | void (*private_free)(snd_seq_device_t *device); | ||
48 | struct list_head list; /* link to next device */ | ||
49 | }; | ||
50 | |||
51 | |||
52 | /* driver operators | ||
53 | * init_device: | ||
54 | * Initialize the device with given parameters. | ||
55 | * Typically, | ||
56 | * 1. call snd_hwdep_new | ||
57 | * 2. allocate private data and initialize it | ||
58 | * 3. call snd_hwdep_register | ||
59 | * 4. store the instance to dev->driver_data pointer. | ||
60 | * | ||
61 | * free_device: | ||
62 | * Release the private data. | ||
63 | * Typically, call snd_device_free(dev->card, dev->driver_data) | ||
64 | */ | ||
65 | struct snd_seq_dev_ops { | ||
66 | int (*init_device)(snd_seq_device_t *dev); | ||
67 | int (*free_device)(snd_seq_device_t *dev); | ||
68 | }; | ||
69 | |||
70 | /* | ||
71 | * prototypes | ||
72 | */ | ||
73 | void snd_seq_device_load_drivers(void); | ||
74 | int snd_seq_device_new(snd_card_t *card, int device, char *id, int argsize, snd_seq_device_t **result); | ||
75 | int snd_seq_device_register_driver(char *id, snd_seq_dev_ops_t *entry, int argsize); | ||
76 | int snd_seq_device_unregister_driver(char *id); | ||
77 | |||
78 | #define SNDRV_SEQ_DEVICE_ARGPTR(dev) (void *)((char *)(dev) + sizeof(snd_seq_device_t)) | ||
79 | |||
80 | |||
81 | /* | ||
82 | * id strings for generic devices | ||
83 | */ | ||
84 | #define SNDRV_SEQ_DEV_ID_MIDISYNTH "seq-midi" | ||
85 | #define SNDRV_SEQ_DEV_ID_OPL3 "opl3-synth" | ||
86 | |||
87 | |||
88 | #endif /* __SOUND_SEQ_DEVICE_H */ | ||