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/slab.h>
24 #include <linux/string.h>
25 #include <sound/core.h>
26 #include <sound/emux_synth.h>
27 #include <linux/init.h>
28 #include "emux_voice.h"
30 MODULE_AUTHOR("Takashi Iwai");
31 MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
32 MODULE_LICENSE("GPL");
35 * create a new hardware dependent device for Emu8000/Emu10k1
37 int snd_emux_new(struct snd_emux
**remu
)
42 emu
= kzalloc(sizeof(*emu
), GFP_KERNEL
);
46 spin_lock_init(&emu
->voice_lock
);
47 mutex_init(&emu
->register_mutex
);
50 #ifdef CONFIG_SND_SEQUENCER_OSS
51 emu
->oss_synth
= NULL
;
56 init_timer(&emu
->tlist
);
57 emu
->tlist
.function
= snd_emux_timer_callback
;
58 emu
->tlist
.data
= (unsigned long)emu
;
59 emu
->timer_active
= 0;
65 EXPORT_SYMBOL(snd_emux_new
);
69 static int sf_sample_new(void *private_data
, struct snd_sf_sample
*sp
,
70 struct snd_util_memhdr
*hdr
,
71 const void __user
*buf
, long count
)
73 struct snd_emux
*emu
= private_data
;
74 return emu
->ops
.sample_new(emu
, sp
, hdr
, buf
, count
);
78 static int sf_sample_free(void *private_data
, struct snd_sf_sample
*sp
,
79 struct snd_util_memhdr
*hdr
)
81 struct snd_emux
*emu
= private_data
;
82 return emu
->ops
.sample_free(emu
, sp
, hdr
);
86 static void sf_sample_reset(void *private_data
)
88 struct snd_emux
*emu
= private_data
;
89 emu
->ops
.sample_reset(emu
);
92 int snd_emux_register(struct snd_emux
*emu
, struct snd_card
*card
, int index
, char *name
)
95 struct snd_sf_callback sf_cb
;
97 snd_assert(emu
->hw
!= NULL
, return -EINVAL
);
98 snd_assert(emu
->max_voices
> 0, return -EINVAL
);
99 snd_assert(card
!= NULL
, return -EINVAL
);
100 snd_assert(name
!= NULL
, return -EINVAL
);
103 emu
->name
= kstrdup(name
, GFP_KERNEL
);
104 emu
->voices
= kcalloc(emu
->max_voices
, sizeof(struct snd_emux_voice
),
106 if (emu
->voices
== NULL
)
109 /* create soundfont list */
110 memset(&sf_cb
, 0, sizeof(sf_cb
));
111 sf_cb
.private_data
= emu
;
112 if (emu
->ops
.sample_new
)
113 sf_cb
.sample_new
= sf_sample_new
;
114 if (emu
->ops
.sample_free
)
115 sf_cb
.sample_free
= sf_sample_free
;
116 if (emu
->ops
.sample_reset
)
117 sf_cb
.sample_reset
= sf_sample_reset
;
118 emu
->sflist
= snd_sf_new(&sf_cb
, emu
->memhdr
);
119 if (emu
->sflist
== NULL
)
122 if ((err
= snd_emux_init_hwdep(emu
)) < 0)
125 snd_emux_init_voices(emu
);
127 snd_emux_init_seq(emu
, card
, index
);
128 #ifdef CONFIG_SND_SEQUENCER_OSS
129 snd_emux_init_seq_oss(emu
);
131 snd_emux_init_virmidi(emu
, card
);
133 #ifdef CONFIG_PROC_FS
134 snd_emux_proc_init(emu
, card
, index
);
139 EXPORT_SYMBOL(snd_emux_register
);
143 int snd_emux_free(struct snd_emux
*emu
)
150 spin_lock_irqsave(&emu
->voice_lock
, flags
);
151 if (emu
->timer_active
)
152 del_timer(&emu
->tlist
);
153 spin_unlock_irqrestore(&emu
->voice_lock
, flags
);
155 #ifdef CONFIG_PROC_FS
156 snd_emux_proc_free(emu
);
158 snd_emux_delete_virmidi(emu
);
159 #ifdef CONFIG_SND_SEQUENCER_OSS
160 snd_emux_detach_seq_oss(emu
);
162 snd_emux_detach_seq(emu
);
164 snd_emux_delete_hwdep(emu
);
167 snd_sf_free(emu
->sflist
);
175 EXPORT_SYMBOL(snd_emux_free
);
182 static int __init
alsa_emux_init(void)
187 static void __exit
alsa_emux_exit(void)
191 module_init(alsa_emux_init
)
192 module_exit(alsa_emux_exit
)