blob: 93522072bc87c9c69cf1ea8a4031bf5d60c4386e [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
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <linux/wait.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/slab.h>
Paulo Marques543537b2005-06-23 00:09:02 -070023#include <linux/string.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include <sound/core.h>
25#include <sound/emux_synth.h>
26#include <linux/init.h>
Paul Gortmakerda155d52011-07-15 12:38:28 -040027#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include "emux_voice.h"
29
30MODULE_AUTHOR("Takashi Iwai");
31MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
32MODULE_LICENSE("GPL");
33
34/*
35 * create a new hardware dependent device for Emu8000/Emu10k1
36 */
Takashi Iwai03da3122005-11-17 14:24:47 +010037int snd_emux_new(struct snd_emux **remu)
Linus Torvalds1da177e2005-04-16 15:20:36 -070038{
Takashi Iwai03da3122005-11-17 14:24:47 +010039 struct snd_emux *emu;
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
41 *remu = NULL;
Takashi Iwai561b2202005-09-09 14:22:34 +020042 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 if (emu == NULL)
44 return -ENOMEM;
45
46 spin_lock_init(&emu->voice_lock);
Ingo Molnaref9f0a42006-01-16 16:31:42 +010047 mutex_init(&emu->register_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49 emu->client = -1;
50#ifdef CONFIG_SND_SEQUENCER_OSS
51 emu->oss_synth = NULL;
52#endif
53 emu->max_voices = 0;
54 emu->use_time = 0;
55
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;
60
61 *remu = emu;
62 return 0;
63}
64
Takashi Iwai95ff17562006-04-28 15:13:40 +020065EXPORT_SYMBOL(snd_emux_new);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
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
Takashi Iwai5e246b82008-08-08 17:12:47 +020097 if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0))
98 return -EINVAL;
99 if (snd_BUG_ON(!card || !name))
100 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
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
Takashi Iwai95ff17562006-04-28 15:13:40 +0200139EXPORT_SYMBOL(snd_emux_register);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
141/*
142 */
Takashi Iwai03da3122005-11-17 14:24:47 +0100143int snd_emux_free(struct snd_emux *emu)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144{
145 unsigned long flags;
146
147 if (! emu)
148 return -EINVAL;
149
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);
154
155#ifdef CONFIG_PROC_FS
156 snd_emux_proc_free(emu);
157#endif
158 snd_emux_delete_virmidi(emu);
159#ifdef CONFIG_SND_SEQUENCER_OSS
160 snd_emux_detach_seq_oss(emu);
161#endif
162 snd_emux_detach_seq(emu);
163
164 snd_emux_delete_hwdep(emu);
165
166 if (emu->sflist)
167 snd_sf_free(emu->sflist);
168
169 kfree(emu->voices);
170 kfree(emu->name);
171 kfree(emu);
172 return 0;
173}
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175EXPORT_SYMBOL(snd_emux_free);
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
178/*
179 * INIT part
180 */
181
182static int __init alsa_emux_init(void)
183{
184 return 0;
185}
186
187static void __exit alsa_emux_exit(void)
188{
189}
190
191module_init(alsa_emux_init)
192module_exit(alsa_emux_exit)