mirror of
https://github.com/torvalds/linux.git
synced 2024-11-27 06:31:52 +00:00
1da177e4c3
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!
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
#ifndef __SOUND_SEQ_DEVICE_H
|
|
#define __SOUND_SEQ_DEVICE_H
|
|
|
|
/*
|
|
* ALSA sequencer device management
|
|
* Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
typedef struct snd_seq_device snd_seq_device_t;
|
|
typedef struct snd_seq_dev_ops snd_seq_dev_ops_t;
|
|
|
|
/*
|
|
* registered device information
|
|
*/
|
|
|
|
#define ID_LEN 32
|
|
|
|
/* status flag */
|
|
#define SNDRV_SEQ_DEVICE_FREE 0
|
|
#define SNDRV_SEQ_DEVICE_REGISTERED 1
|
|
|
|
struct snd_seq_device {
|
|
/* device info */
|
|
snd_card_t *card; /* sound card */
|
|
int device; /* device number */
|
|
char id[ID_LEN]; /* driver id */
|
|
char name[80]; /* device name */
|
|
int argsize; /* size of the argument */
|
|
void *driver_data; /* private data for driver */
|
|
int status; /* flag - read only */
|
|
void *private_data; /* private data for the caller */
|
|
void (*private_free)(snd_seq_device_t *device);
|
|
struct list_head list; /* link to next device */
|
|
};
|
|
|
|
|
|
/* driver operators
|
|
* init_device:
|
|
* Initialize the device with given parameters.
|
|
* Typically,
|
|
* 1. call snd_hwdep_new
|
|
* 2. allocate private data and initialize it
|
|
* 3. call snd_hwdep_register
|
|
* 4. store the instance to dev->driver_data pointer.
|
|
*
|
|
* free_device:
|
|
* Release the private data.
|
|
* Typically, call snd_device_free(dev->card, dev->driver_data)
|
|
*/
|
|
struct snd_seq_dev_ops {
|
|
int (*init_device)(snd_seq_device_t *dev);
|
|
int (*free_device)(snd_seq_device_t *dev);
|
|
};
|
|
|
|
/*
|
|
* prototypes
|
|
*/
|
|
void snd_seq_device_load_drivers(void);
|
|
int snd_seq_device_new(snd_card_t *card, int device, char *id, int argsize, snd_seq_device_t **result);
|
|
int snd_seq_device_register_driver(char *id, snd_seq_dev_ops_t *entry, int argsize);
|
|
int snd_seq_device_unregister_driver(char *id);
|
|
|
|
#define SNDRV_SEQ_DEVICE_ARGPTR(dev) (void *)((char *)(dev) + sizeof(snd_seq_device_t))
|
|
|
|
|
|
/*
|
|
* id strings for generic devices
|
|
*/
|
|
#define SNDRV_SEQ_DEV_ID_MIDISYNTH "seq-midi"
|
|
#define SNDRV_SEQ_DEV_ID_OPL3 "opl3-synth"
|
|
|
|
|
|
#endif /* __SOUND_SEQ_DEVICE_H */
|