2 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
4 * Routines for control of EMU WaveTable chip
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.
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.
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
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");
36 * create a new hardware dependent device for Emu8000/Emu10k1
38 int snd_emux_new(snd_emux_t **remu)
43 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
47 spin_lock_init(&emu->voice_lock);
48 init_MUTEX(&emu->register_mutex);
51 #ifdef CONFIG_SND_SEQUENCER_OSS
52 emu->oss_synth = NULL;
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;
69 int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name)
72 snd_sf_callback_t sf_cb;
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);
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)
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)
95 if ((err = snd_emux_init_hwdep(emu)) < 0)
98 snd_emux_init_voices(emu);
100 snd_emux_init_seq(emu, card, index);
101 #ifdef CONFIG_SND_SEQUENCER_OSS
102 snd_emux_init_seq_oss(emu);
104 snd_emux_init_virmidi(emu, card);
106 #ifdef CONFIG_PROC_FS
107 snd_emux_proc_init(emu, card, index);
115 int snd_emux_free(snd_emux_t *emu)
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);
127 #ifdef CONFIG_PROC_FS
128 snd_emux_proc_free(emu);
130 snd_emux_delete_virmidi(emu);
131 #ifdef CONFIG_SND_SEQUENCER_OSS
132 snd_emux_detach_seq_oss(emu);
134 snd_emux_detach_seq(emu);
136 snd_emux_delete_hwdep(emu);
139 snd_sf_free(emu->sflist);
148 EXPORT_SYMBOL(snd_emux_new);
149 EXPORT_SYMBOL(snd_emux_register);
150 EXPORT_SYMBOL(snd_emux_free);
152 EXPORT_SYMBOL(snd_emux_terminate_all);
153 EXPORT_SYMBOL(snd_emux_lock_voice);
154 EXPORT_SYMBOL(snd_emux_unlock_voice);
157 EXPORT_SYMBOL(snd_sf_linear_to_log);
164 static int __init alsa_emux_init(void)
169 static void __exit alsa_emux_exit(void)
173 module_init(alsa_emux_init)
174 module_exit(alsa_emux_exit)