#include <l4/env/errno.h>
#include <l4/lock/lock.h>
#include <l4/dde_linux/dde.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include "__config.h"
#include "internal.h"
#include "soundcore.h"
Go to the source code of this file.
Classes | |
| struct | sound_unit |
| internal sound device/unit structure More... | |
Functions | |
| static int | __sound_insert_unit (struct sound_unit *s, struct sound_unit **list, struct file_operations *fops) |
| Low level list operator. | |
| static void | __sound_remove_unit (struct sound_unit **list, int unit) |
| Remove a node from the chain. | |
| static struct sound_unit * | __look_for_unit (struct sound_unit *s, int unit) |
| look | |
| static int | sound_insert_unit (struct sound_unit **list, struct file_operations *fops, const char *name, int type) |
| Insert a unit. | |
| static void | sound_remove_unit (struct sound_unit **list, int unit) |
| Remove a unit. | |
| int | register_sound_dsp (struct file_operations *fops, int dev) |
| Register a DSP Device. | |
| int | register_sound_mixer (struct file_operations *fops, int dev) |
| Register a Mixer Device. | |
| int | register_sound_midi (struct file_operations *fops, int dev) |
| Register a MIDI Device. | |
| int | register_sound_special (struct file_operations *fops, int unit) |
| Register a Special Sound Node. | |
| int | register_sound_synth (struct file_operations *fops, int dev) |
| Register a synth Device. | |
| void | unregister_sound_dsp (int unit) |
| Unregister a DSP Device. | |
| void | unregister_sound_mixer (int unit) |
| Unregister a Mixer Device. | |
| void | unregister_sound_midi (int unit) |
| Unregister a MIDI Device. | |
| void | unregister_sound_special (int unit) |
| Unregister a Special Node. | |
| void | unregister_sound_synth (int unit) |
| Unregister a synth Device. | |
| struct file_operations * | soundcore_req_fops (int type, int num) |
| Query for device operations structure. | |
| void | soundcore_rel_fops (int type, int num) |
| Release DSP/PCM device XXX nothing to do ? | |
Variables | |
| static struct sound_unit * | dsp = NULL |
| internal lists of sound units | |
| static struct sound_unit * | mixer = NULL |
| static l4lock_t | sound_loader_lock = L4LOCK_UNLOCKED |
| initilization lock | |
Definition in file soundcore.c.
| static int __sound_insert_unit | ( | struct sound_unit * | s, | |
| struct sound_unit ** | list, | |||
| struct file_operations * | fops | |||
| ) | [static] |
Low level list operator.
Scan the ordered list, find a hole and join into it. Called with the lock asserted.
Definition at line 60 of file soundcore.c.
| static void __sound_remove_unit | ( | struct sound_unit ** | list, | |
| int | unit | |||
| ) | [static] |
Remove a node from the chain.
Called with the lock asserted
Definition at line 95 of file soundcore.c.
| static int sound_insert_unit | ( | struct sound_unit ** | list, | |
| struct file_operations * | fops, | |||
| const char * | name, | |||
| int | type | |||
| ) | [static] |
Insert a unit.
Allocate the controlling structure and add it to the sound driver list. Acquires locks as needed
Definition at line 127 of file soundcore.c.
| static void sound_remove_unit | ( | struct sound_unit ** | list, | |
| int | unit | |||
| ) | [static] |
Remove a unit.
Acquires locks as needed. The drivers MUST have completed the removal before their file operations become invalid.
Definition at line 152 of file soundcore.c.