blob: 7c8e328fae6274142c9253c7baf556af86e92792 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Paulo Marques543537b2005-06-23 00:09:02 -070025#include <linux/string.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <sound/core.h>
27#include <sound/emux_synth.h>
28#include <linux/init.h>
29#include "emux_voice.h"
30
31MODULE_AUTHOR("Takashi Iwai");
32MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
33MODULE_LICENSE("GPL");
34
35/*
36 * create a new hardware dependent device for Emu8000/Emu10k1
37 */
Takashi Iwai03da3122005-11-17 14:24:47 +010038int snd_emux_new(struct snd_emux **remu)
Linus Torvalds1da177e2005-04-16 15:20:36 -070039{
Takashi Iwai03da3122005-11-17 14:24:47 +010040 struct snd_emux *emu;
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
42 *remu = NULL;
Takashi Iwai561b2202005-09-09 14:22:34 +020043 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 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 */
Takashi Iwai03da3122005-11-17 14:24:47 +010069static 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)
Takashi Iwaia57d1512005-11-17 10:50:13 +010072{
Takashi Iwai03da3122005-11-17 14:24:47 +010073 struct snd_emux *emu = private_data;
Takashi Iwaia57d1512005-11-17 10:50:13 +010074 return emu->ops.sample_new(emu, sp, hdr, buf, count);
75
76}
77
Takashi Iwai03da3122005-11-17 14:24:47 +010078static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
79 struct snd_util_memhdr *hdr)
Takashi Iwaia57d1512005-11-17 10:50:13 +010080{
Takashi Iwai03da3122005-11-17 14:24:47 +010081 struct snd_emux *emu = private_data;
Takashi Iwaia57d1512005-11-17 10:50:13 +010082 return emu->ops.sample_free(emu, sp, hdr);
83
84}
85
86static void sf_sample_reset(void *private_data)
87{
Takashi Iwai03da3122005-11-17 14:24:47 +010088 struct snd_emux *emu = private_data;
Takashi Iwaia57d1512005-11-17 10:50:13 +010089 emu->ops.sample_reset(emu);
90}
91
Takashi Iwai03da3122005-11-17 14:24:47 +010092int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -070093{
94 int err;
Takashi Iwai03da3122005-11-17 14:24:47 +010095 struct snd_sf_callback sf_cb;
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
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;
Paulo Marques543537b2005-06-23 00:09:02 -0700103 emu->name = kstrdup(name, GFP_KERNEL);
Takashi Iwai03da3122005-11-17 14:24:47 +0100104 emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
105 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 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;
Takashi Iwaia57d1512005-11-17 10:50:13 +0100112 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 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 */
Takashi Iwai03da3122005-11-17 14:24:47 +0100142int snd_emux_free(struct snd_emux *emu)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143{
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
175EXPORT_SYMBOL(snd_emux_new);
176EXPORT_SYMBOL(snd_emux_register);
177EXPORT_SYMBOL(snd_emux_free);
178
179EXPORT_SYMBOL(snd_emux_terminate_all);
180EXPORT_SYMBOL(snd_emux_lock_voice);
181EXPORT_SYMBOL(snd_emux_unlock_voice);
182
183/* soundfont.c */
184EXPORT_SYMBOL(snd_sf_linear_to_log);
185
186
187/*
188 * INIT part
189 */
190
191static int __init alsa_emux_init(void)
192{
193 return 0;
194}
195
196static void __exit alsa_emux_exit(void)
197{
198}
199
200module_init(alsa_emux_init)
201module_exit(alsa_emux_exit)