[SPARC] cpwatchdog: implement ->compat_ioctl
[linux-2.6.git] / sound / synth / emux / emux.c
1 /*
2  *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
3  *
4  *  Routines for control of EMU WaveTable chip
5  *
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.
10  *
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.
15  *
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
19  */
20
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"
30
31 MODULE_AUTHOR("Takashi Iwai");
32 MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
33 MODULE_LICENSE("GPL");
34
35 /*
36  * create a new hardware dependent device for Emu8000/Emu10k1
37  */
38 int snd_emux_new(snd_emux_t **remu)
39 {
40         snd_emux_t *emu;
41
42         *remu = NULL;
43         emu = kzalloc(sizeof(*emu), GFP_KERNEL);
44         if (emu == NULL)
45                 return -ENOMEM;
46
47         spin_lock_init(&emu->voice_lock);
48         init_MUTEX(&emu->register_mutex);
49
50         emu->client = -1;
51 #ifdef CONFIG_SND_SEQUENCER_OSS
52         emu->oss_synth = NULL;
53 #endif
54         emu->max_voices = 0;
55         emu->use_time = 0;
56
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;
61
62         *remu = emu;
63         return 0;
64 }
65
66
67 /*
68  */
69 int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name)
70 {
71         int err;
72         snd_sf_callback_t sf_cb;
73
74         snd_assert(emu->hw != NULL, return -EINVAL);
75         snd_assert(emu->max_voices > 0, return -EINVAL);
76         snd_assert(card != NULL, return -EINVAL);
77         snd_assert(name != NULL, return -EINVAL);
78
79         emu->card = card;
80         emu->name = kstrdup(name, GFP_KERNEL);
81         emu->voices = kcalloc(emu->max_voices, sizeof(snd_emux_voice_t), GFP_KERNEL);
82         if (emu->voices == NULL)
83                 return -ENOMEM;
84
85         /* create soundfont list */
86         memset(&sf_cb, 0, sizeof(sf_cb));
87         sf_cb.private_data = emu;
88         sf_cb.sample_new = (snd_sf_sample_new_t)emu->ops.sample_new;
89         sf_cb.sample_free = (snd_sf_sample_free_t)emu->ops.sample_free;
90         sf_cb.sample_reset = (snd_sf_sample_reset_t)emu->ops.sample_reset;
91         emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
92         if (emu->sflist == NULL)
93                 return -ENOMEM;
94
95         if ((err = snd_emux_init_hwdep(emu)) < 0)
96                 return err;
97
98         snd_emux_init_voices(emu);
99
100         snd_emux_init_seq(emu, card, index);
101 #ifdef CONFIG_SND_SEQUENCER_OSS
102         snd_emux_init_seq_oss(emu);
103 #endif
104         snd_emux_init_virmidi(emu, card);
105
106 #ifdef CONFIG_PROC_FS
107         snd_emux_proc_init(emu, card, index);
108 #endif
109         return 0;
110 }
111
112
113 /*
114  */
115 int snd_emux_free(snd_emux_t *emu)
116 {
117         unsigned long flags;
118
119         if (! emu)
120                 return -EINVAL;
121
122         spin_lock_irqsave(&emu->voice_lock, flags);
123         if (emu->timer_active)
124                 del_timer(&emu->tlist);
125         spin_unlock_irqrestore(&emu->voice_lock, flags);
126
127 #ifdef CONFIG_PROC_FS
128         snd_emux_proc_free(emu);
129 #endif
130         snd_emux_delete_virmidi(emu);
131 #ifdef CONFIG_SND_SEQUENCER_OSS
132         snd_emux_detach_seq_oss(emu);
133 #endif
134         snd_emux_detach_seq(emu);
135
136         snd_emux_delete_hwdep(emu);
137
138         if (emu->sflist)
139                 snd_sf_free(emu->sflist);
140
141         kfree(emu->voices);
142         kfree(emu->name);
143         kfree(emu);
144         return 0;
145 }
146
147
148 EXPORT_SYMBOL(snd_emux_new);
149 EXPORT_SYMBOL(snd_emux_register);
150 EXPORT_SYMBOL(snd_emux_free);
151
152 EXPORT_SYMBOL(snd_emux_terminate_all);
153 EXPORT_SYMBOL(snd_emux_lock_voice);
154 EXPORT_SYMBOL(snd_emux_unlock_voice);
155
156 /* soundfont.c */
157 EXPORT_SYMBOL(snd_sf_linear_to_log);
158
159
160 /*
161  *  INIT part
162  */
163
164 static int __init alsa_emux_init(void)
165 {
166         return 0;
167 }
168
169 static void __exit alsa_emux_exit(void)
170 {
171 }
172
173 module_init(alsa_emux_init)
174 module_exit(alsa_emux_exit)