1 #ifndef __SOUND_SEQ_DEVICE_H
2 #define __SOUND_SEQ_DEVICE_H
5 * ALSA sequencer device management
6 * Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de>
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.
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.
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
25 * registered device information
28 struct snd_seq_device {
30 struct snd_card *card; /* sound card */
31 int device; /* device number */
32 const char *id; /* driver id */
33 char name[80]; /* device name */
34 int argsize; /* size of the argument */
35 void *driver_data; /* private data for driver */
36 void *private_data; /* private data for the caller */
37 void (*private_free)(struct snd_seq_device *device);
41 #define to_seq_dev(_dev) \
42 container_of(_dev, struct snd_seq_device, dev)
44 /* sequencer driver */
48 * Initialize the device with given parameters.
50 * 1. call snd_hwdep_new
51 * 2. allocate private data and initialize it
52 * 3. call snd_hwdep_register
53 * 4. store the instance to dev->driver_data pointer.
56 * Release the private data.
57 * Typically, call snd_device_free(dev->card, dev->driver_data)
59 struct snd_seq_driver {
60 struct device_driver driver;
65 #define to_seq_drv(_drv) \
66 container_of(_drv, struct snd_seq_driver, driver)
72 void snd_seq_device_load_drivers(void);
74 #define snd_seq_device_load_drivers()
76 int snd_seq_device_new(struct snd_card *card, int device, const char *id,
77 int argsize, struct snd_seq_device **result);
79 #define SNDRV_SEQ_DEVICE_ARGPTR(dev) (void *)((char *)(dev) + sizeof(struct snd_seq_device))
81 int __must_check __snd_seq_driver_register(struct snd_seq_driver *drv,
83 #define snd_seq_driver_register(drv) \
84 __snd_seq_driver_register(drv, THIS_MODULE)
85 void snd_seq_driver_unregister(struct snd_seq_driver *drv);
87 #define module_snd_seq_driver(drv) \
88 module_driver(drv, snd_seq_driver_register, snd_seq_driver_unregister)
91 * id strings for generic devices
93 #define SNDRV_SEQ_DEV_ID_MIDISYNTH "seq-midi"
94 #define SNDRV_SEQ_DEV_ID_OPL3 "opl3-synth"
96 #endif /* __SOUND_SEQ_DEVICE_H */