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 <linux/wait.h>
22 #include <linux/slab.h>
23 #include <linux/string.h>
24 #include <sound/core.h>
25 #include <sound/emux_synth.h>
26 #include <linux/init.h>
27 #include "emux_voice.h"
28
29 MODULE_AUTHOR("Takashi Iwai");
30 MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
31 MODULE_LICENSE("GPL");
32
33 /*
34 * create a new hardware dependent device for Emu8000/Emu10k1
35 */
36 int snd_emux_new(struct snd_emux **remu)
37 {
38 struct snd_emux *emu;
39
40 *remu = NULL;
41 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
42 if (emu == NULL)
43 return -ENOMEM;
44
45 spin_lock_init(&emu->voice_lock);
46 mutex_init(&emu->register_mutex);
47
48 emu->client = -1;
49 #ifdef CONFIG_SND_SEQUENCER_OSS
50 emu->oss_synth = NULL;
51 #endif
52 emu->max_voices = 0;
53 emu->use_time = 0;
54
55 init_timer(&emu->tlist);
56 emu->tlist.function = snd_emux_timer_callback;
57 emu->tlist.data = (unsigned long)emu;
58 emu->timer_active = 0;
59
60 *remu = emu;
61 return 0;
62 }
63
64 EXPORT_SYMBOL(snd_emux_new);
65
66 /*
67 */
68 static int sf_sample_new(void *private_data, struct snd_sf_sample *sp,
69 struct snd_util_memhdr *hdr,
70 const void __user *buf, long count)
71 {
72 struct snd_emux *emu = private_data;
73 return emu->ops.sample_new(emu, sp, hdr, buf, count);
74
75 }
76
77 static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
78 struct snd_util_memhdr *hdr)
79 {
80 struct snd_emux *emu = private_data;
81 return emu->ops.sample_free(emu, sp, hdr);
82
83 }
84
85 static void sf_sample_reset(void *private_data)
86 {
87 struct snd_emux *emu = private_data;
88 emu->ops.sample_reset(emu);
89 }
90
91 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
92 {
93 int err;
94 struct snd_sf_callback sf_cb;
95
96 if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0))
97 return -EINVAL;
98 if (snd_BUG_ON(!card || !name))
99 return -EINVAL;
100
101 emu->card = card;
102 emu->name = kstrdup(name, GFP_KERNEL);
103 emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
104 GFP_KERNEL);
105 if (emu->voices == NULL)
106 return -ENOMEM;
107
108 /* create soundfont list */
109 memset(&sf_cb, 0, sizeof(sf_cb));
110 sf_cb.private_data = emu;
111 if (emu->ops.sample_new)
112 sf_cb.sample_new = sf_sample_new;
113 if (emu->ops.sample_free)
114 sf_cb.sample_free = sf_sample_free;
115 if (emu->ops.sample_reset)
116 sf_cb.sample_reset = sf_sample_reset;
117 emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
118 if (emu->sflist == NULL)
119 return -ENOMEM;
120
121 if ((err = snd_emux_init_hwdep(emu)) < 0)
122 return err;
123
124 snd_emux_init_voices(emu);
125
126 snd_emux_init_seq(emu, card, index);
127 #ifdef CONFIG_SND_SEQUENCER_OSS
128 snd_emux_init_seq_oss(emu);
129 #endif
130 snd_emux_init_virmidi(emu, card);
131
132 #ifdef CONFIG_PROC_FS
133 snd_emux_proc_init(emu, card, index);
134 #endif
135 return 0;
136 }
137
138 EXPORT_SYMBOL(snd_emux_register);
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 EXPORT_SYMBOL(snd_emux_free);
175
176
177 /*
178 * INIT part
179 */
180
181 static int __init alsa_emux_init(void)
182 {
183 return 0;
184 }
185
186 static void __exit alsa_emux_exit(void)
187 {
188 }
189
190 module_init(alsa_emux_init)
191 module_exit(alsa_emux_exit)
192
|
This page was automatically generated by the
LXR engine.
|