148 lines
3.2 KiB
C
148 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
|
|
*
|
|
* 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;
|
|
|
|
if ((err = snd_emux_init_hwdep(emu)) < 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);
|