ia64/linux-2.6.18-xen.hg

view sound/synth/emux/emux.c @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
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 */
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");
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;
42 *remu = NULL;
43 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
44 if (emu == NULL)
45 return -ENOMEM;
47 spin_lock_init(&emu->voice_lock);
48 mutex_init(&emu->register_mutex);
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;
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;
62 *remu = emu;
63 return 0;
64 }
66 EXPORT_SYMBOL(snd_emux_new);
68 /*
69 */
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)
73 {
74 struct snd_emux *emu = private_data;
75 return emu->ops.sample_new(emu, sp, hdr, buf, count);
77 }
79 static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
80 struct snd_util_memhdr *hdr)
81 {
82 struct snd_emux *emu = private_data;
83 return emu->ops.sample_free(emu, sp, hdr);
85 }
87 static void sf_sample_reset(void *private_data)
88 {
89 struct snd_emux *emu = private_data;
90 emu->ops.sample_reset(emu);
91 }
93 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
94 {
95 int err;
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);
103 emu->card = card;
104 emu->name = kstrdup(name, GFP_KERNEL);
105 emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
106 GFP_KERNEL);
107 if (emu->voices == NULL)
108 return -ENOMEM;
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)
121 return -ENOMEM;
123 if ((err = snd_emux_init_hwdep(emu)) < 0)
124 return err;
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);
131 #endif
132 snd_emux_init_virmidi(emu, card);
134 #ifdef CONFIG_PROC_FS
135 snd_emux_proc_init(emu, card, index);
136 #endif
137 return 0;
138 }
140 EXPORT_SYMBOL(snd_emux_register);
142 /*
143 */
144 int snd_emux_free(struct snd_emux *emu)
145 {
146 unsigned long flags;
148 if (! emu)
149 return -EINVAL;
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);
158 #endif
159 snd_emux_delete_virmidi(emu);
160 #ifdef CONFIG_SND_SEQUENCER_OSS
161 snd_emux_detach_seq_oss(emu);
162 #endif
163 snd_emux_detach_seq(emu);
165 snd_emux_delete_hwdep(emu);
167 if (emu->sflist)
168 snd_sf_free(emu->sflist);
170 kfree(emu->voices);
171 kfree(emu->name);
172 kfree(emu);
173 return 0;
174 }
176 EXPORT_SYMBOL(snd_emux_free);
179 /*
180 * INIT part
181 */
183 static int __init alsa_emux_init(void)
184 {
185 return 0;
186 }
188 static void __exit alsa_emux_exit(void)
189 {
190 }
192 module_init(alsa_emux_init)
193 module_exit(alsa_emux_exit)