[ALSA] Remove xxx_t typedefs: Emu-X synth
[linux-3.10.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(struct snd_emux **remu)
39 {
40         struct snd_emux *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 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)
72 {
73         struct snd_emux *emu = private_data;
74         return emu->ops.sample_new(emu, sp, hdr, buf, count);
75         
76 }
77
78 static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
79                                    struct snd_util_memhdr *hdr)
80 {
81         struct snd_emux *emu = private_data;
82         return emu->ops.sample_free(emu, sp, hdr);
83         
84 }
85
86 static void sf_sample_reset(void *private_data)
87 {
88         struct snd_emux *emu = private_data;
89         emu->ops.sample_reset(emu);
90 }
91
92 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
93 {
94         int err;
95         struct snd_sf_callback sf_cb;
96
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);
101
102         emu->card = card;
103         emu->name = kstrdup(name, GFP_KERNEL);
104         emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
105                               GFP_KERNEL);
106         if (emu->voices == NULL)
107                 return -ENOMEM;
108
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)
120                 return -ENOMEM;
121
122         if ((err = snd_emux_init_hwdep(emu)) < 0)
123                 return err;
124
125         snd_emux_init_voices(emu);
126
127         snd_emux_init_seq(emu, card, index);
128 #ifdef CONFIG_SND_SEQUENCER_OSS
129         snd_emux_init_seq_oss(emu);
130 #endif
131         snd_emux_init_virmidi(emu, card);
132
133 #ifdef CONFIG_PROC_FS
134         snd_emux_proc_init(emu, card, index);
135 #endif
136         return 0;
137 }
138
139
140 /*
141  */
142 int snd_emux_free(struct snd_emux *emu)
143 {
144         unsigned long flags;
145
146         if (! emu)
147                 return -EINVAL;
148
149         spin_lock_irqsave(&emu->voice_lock, flags);
150         if (emu->timer_active)
151                 del_timer(&emu->tlist);
152         spin_unlock_irqrestore(&emu->voice_lock, flags);
153
154 #ifdef CONFIG_PROC_FS
155         snd_emux_proc_free(emu);
156 #endif
157         snd_emux_delete_virmidi(emu);
158 #ifdef CONFIG_SND_SEQUENCER_OSS
159         snd_emux_detach_seq_oss(emu);
160 #endif
161         snd_emux_detach_seq(emu);
162
163         snd_emux_delete_hwdep(emu);
164
165         if (emu->sflist)
166                 snd_sf_free(emu->sflist);
167
168         kfree(emu->voices);
169         kfree(emu->name);
170         kfree(emu);
171         return 0;
172 }
173
174
175 EXPORT_SYMBOL(snd_emux_new);
176 EXPORT_SYMBOL(snd_emux_register);
177 EXPORT_SYMBOL(snd_emux_free);
178
179 EXPORT_SYMBOL(snd_emux_terminate_all);
180 EXPORT_SYMBOL(snd_emux_lock_voice);
181 EXPORT_SYMBOL(snd_emux_unlock_voice);
182
183 /* soundfont.c */
184 EXPORT_SYMBOL(snd_sf_linear_to_log);
185
186
187 /*
188  *  INIT part
189  */
190
191 static int __init alsa_emux_init(void)
192 {
193         return 0;
194 }
195
196 static void __exit alsa_emux_exit(void)
197 {
198 }
199
200 module_init(alsa_emux_init)
201 module_exit(alsa_emux_exit)