mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
148 lines
3.2 KiB
148 lines
3.2 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
|
* Copyright (C) 2000 Takashi Iwai <[email protected]> |
|
* |
|
* Routines for control of EMU WaveTable chip |
|
*/ |
|
|
|
#include <linux/wait.h> |
|
#include <linux/slab.h> |
|
#include <linux/string.h> |
|
#include <sound/core.h> |
|
#include <sound/emux_synth.h> |
|
#include <linux/init.h> |
|
#include <linux/module.h> |
|
#include "emux_voice.h" |
|
|
|
MODULE_AUTHOR("Takashi Iwai"); |
|
MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
/* |
|
* create a new hardware dependent device for Emu8000/Emu10k1 |
|
*/ |
|
int snd_emux_new(struct snd_emux **remu) |
|
{ |
|
struct snd_emux *emu; |
|
|
|
*remu = NULL; |
|
emu = kzalloc(sizeof(*emu), GFP_KERNEL); |
|
if (emu == NULL) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&emu->voice_lock); |
|
mutex_init(&emu->register_mutex); |
|
|
|
emu->client = -1; |
|
#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS) |
|
emu->oss_synth = NULL; |
|
#endif |
|
emu->max_voices = 0; |
|
emu->use_time = 0; |
|
|
|
timer_setup(&emu->tlist, snd_emux_timer_callback, 0); |
|
emu->timer_active = 0; |
|
|
|
*remu = emu; |
|
return 0; |
|
} |
|
|
|
EXPORT_SYMBOL(snd_emux_new); |
|
|
|
/* |
|
*/ |
|
static int sf_sample_new(void *private_data, struct snd_sf_sample *sp, |
|
struct snd_util_memhdr *hdr, |
|
const void __user *buf, long count) |
|
{ |
|
struct snd_emux *emu = private_data; |
|
return emu->ops.sample_new(emu, sp, hdr, buf, count); |
|
|
|
} |
|
|
|
static int sf_sample_free(void *private_data, struct snd_sf_sample *sp, |
|
struct snd_util_memhdr *hdr) |
|
{ |
|
struct snd_emux *emu = private_data; |
|
return emu->ops.sample_free(emu, sp, hdr); |
|
|
|
} |
|
|
|
static void sf_sample_reset(void *private_data) |
|
{ |
|
struct snd_emux *emu = private_data; |
|
emu->ops.sample_reset(emu); |
|
} |
|
|
|
int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name) |
|
{ |
|
int err; |
|
struct snd_sf_callback sf_cb; |
|
|
|
if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0)) |
|
return -EINVAL; |
|
if (snd_BUG_ON(!card || !name)) |
|
return -EINVAL; |
|
|
|
emu->card = card; |
|
emu->name = kstrdup(name, GFP_KERNEL); |
|
emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice), |
|
GFP_KERNEL); |
|
if (emu->name == NULL || emu->voices == NULL) |
|
return -ENOMEM; |
|
|
|
/* create soundfont list */ |
|
memset(&sf_cb, 0, sizeof(sf_cb)); |
|
sf_cb.private_data = emu; |
|
if (emu->ops.sample_new) |
|
sf_cb.sample_new = sf_sample_new; |
|
if (emu->ops.sample_free) |
|
sf_cb.sample_free = sf_sample_free; |
|
if (emu->ops.sample_reset) |
|
sf_cb.sample_reset = sf_sample_reset; |
|
emu->sflist = snd_sf_new(&sf_cb, emu->memhdr); |
|
if (emu->sflist == NULL) |
|
return -ENOMEM; |
|
|
|
err = snd_emux_init_hwdep(emu); |
|
if (err < 0) |
|
return err; |
|
|
|
snd_emux_init_voices(emu); |
|
|
|
snd_emux_init_seq(emu, card, index); |
|
#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS) |
|
snd_emux_init_seq_oss(emu); |
|
#endif |
|
snd_emux_init_virmidi(emu, card); |
|
|
|
snd_emux_proc_init(emu, card, index); |
|
return 0; |
|
} |
|
|
|
EXPORT_SYMBOL(snd_emux_register); |
|
|
|
/* |
|
*/ |
|
int snd_emux_free(struct snd_emux *emu) |
|
{ |
|
if (! emu) |
|
return -EINVAL; |
|
|
|
del_timer_sync(&emu->tlist); |
|
|
|
snd_emux_proc_free(emu); |
|
snd_emux_delete_virmidi(emu); |
|
#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS) |
|
snd_emux_detach_seq_oss(emu); |
|
#endif |
|
snd_emux_detach_seq(emu); |
|
snd_emux_delete_hwdep(emu); |
|
snd_sf_free(emu->sflist); |
|
kfree(emu->voices); |
|
kfree(emu->name); |
|
kfree(emu); |
|
return 0; |
|
} |
|
|
|
EXPORT_SYMBOL(snd_emux_free);
|
|
|