2 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
4 * Routines for control of EMU WaveTable chip
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <sound/driver.h>
22 #include <linux/wait.h>
23 #include <linux/sched.h>
24 #include <linux/slab.h>
25 #include <linux/string.h>
26 #include <sound/core.h>
27 #include <sound/emux_synth.h>
28 #include <linux/init.h>
29 #include "emux_voice.h"
31 MODULE_AUTHOR("Takashi Iwai");
32 MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
33 MODULE_LICENSE("GPL");
36 * create a new hardware dependent device for Emu8000/Emu10k1
38 int snd_emux_new(struct snd_emux
**remu
)
43 emu
= kzalloc(sizeof(*emu
), GFP_KERNEL
);
47 spin_lock_init(&emu
->voice_lock
);
48 mutex_init(&emu
->register_mutex
);
51 #ifdef CONFIG_SND_SEQUENCER_OSS
52 emu
->oss_synth
= NULL
;
57 init_timer(&emu
->tlist
);
58 emu
->tlist
.function
= snd_emux_timer_callback
;
59 emu
->tlist
.data
= (unsigned long)emu
;
60 emu
->timer_active
= 0;
66 EXPORT_SYMBOL(snd_emux_new
);
70 static int sf_sample_new(void *private_data
, struct snd_sf_sample
*sp
,
71 struct snd_util_memhdr
*hdr
,
72 const void __user
*buf
, long count
)
74 struct snd_emux
*emu
= private_data
;
75 return emu
->ops
.sample_new(emu
, sp
, hdr
, buf
, count
);
79 static int sf_sample_free(void *private_data
, struct snd_sf_sample
*sp
,
80 struct snd_util_memhdr
*hdr
)
82 struct snd_emux
*emu
= private_data
;
83 return emu
->ops
.sample_free(emu
, sp
, hdr
);
87 static void sf_sample_reset(void *private_data
)
89 struct snd_emux
*emu
= private_data
;
90 emu
->ops
.sample_reset(emu
);
93 int snd_emux_register(struct snd_emux
*emu
, struct snd_card
*card
, int index
, char *name
)
96 struct snd_sf_callback sf_cb
;
98 snd_assert(emu
->hw
!= NULL
, return -EINVAL
);
99 snd_assert(emu
->max_voices
> 0, return -EINVAL
);
100 snd_assert(card
!= NULL
, return -EINVAL
);
101 snd_assert(name
!= NULL
, return -EINVAL
);
104 emu
->name
= kstrdup(name
, GFP_KERNEL
);
105 emu
->voices
= kcalloc(emu
->max_voices
, sizeof(struct snd_emux_voice
),
107 if (emu
->voices
== NULL
)
110 /* create soundfont list */
111 memset(&sf_cb
, 0, sizeof(sf_cb
));
112 sf_cb
.private_data
= emu
;
113 if (emu
->ops
.sample_new
)
114 sf_cb
.sample_new
= sf_sample_new
;
115 if (emu
->ops
.sample_free
)
116 sf_cb
.sample_free
= sf_sample_free
;
117 if (emu
->ops
.sample_reset
)
118 sf_cb
.sample_reset
= sf_sample_reset
;
119 emu
->sflist
= snd_sf_new(&sf_cb
, emu
->memhdr
);
120 if (emu
->sflist
== NULL
)
123 if ((err
= snd_emux_init_hwdep(emu
)) < 0)
126 snd_emux_init_voices(emu
);
128 snd_emux_init_seq(emu
, card
, index
);
129 #ifdef CONFIG_SND_SEQUENCER_OSS
130 snd_emux_init_seq_oss(emu
);
132 snd_emux_init_virmidi(emu
, card
);
134 #ifdef CONFIG_PROC_FS
135 snd_emux_proc_init(emu
, card
, index
);
140 EXPORT_SYMBOL(snd_emux_register
);
144 int snd_emux_free(struct snd_emux
*emu
)
151 spin_lock_irqsave(&emu
->voice_lock
, flags
);
152 if (emu
->timer_active
)
153 del_timer(&emu
->tlist
);
154 spin_unlock_irqrestore(&emu
->voice_lock
, flags
);
156 #ifdef CONFIG_PROC_FS
157 snd_emux_proc_free(emu
);
159 snd_emux_delete_virmidi(emu
);
160 #ifdef CONFIG_SND_SEQUENCER_OSS
161 snd_emux_detach_seq_oss(emu
);
163 snd_emux_detach_seq(emu
);
165 snd_emux_delete_hwdep(emu
);
168 snd_sf_free(emu
->sflist
);
176 EXPORT_SYMBOL(snd_emux_free
);
183 static int __init
alsa_emux_init(void)
188 static void __exit
alsa_emux_exit(void)
192 module_init(alsa_emux_init
)
193 module_exit(alsa_emux_exit
)