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1da177e4 LT |
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 <sound/driver.h> | |
22 | #include <linux/wait.h> | |
23 | #include <linux/sched.h> | |
24 | #include <linux/slab.h> | |
25 | #include <sound/core.h> | |
26 | #include <sound/emux_synth.h> | |
27 | #include <linux/init.h> | |
28 | #include "emux_voice.h" | |
29 | ||
30 | MODULE_AUTHOR("Takashi Iwai"); | |
31 | MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip"); | |
32 | MODULE_LICENSE("GPL"); | |
33 | ||
34 | /* | |
35 | * create a new hardware dependent device for Emu8000/Emu10k1 | |
36 | */ | |
37 | int snd_emux_new(snd_emux_t **remu) | |
38 | { | |
39 | snd_emux_t *emu; | |
40 | ||
41 | *remu = NULL; | |
42 | emu = kcalloc(1, sizeof(*emu), GFP_KERNEL); | |
43 | if (emu == NULL) | |
44 | return -ENOMEM; | |
45 | ||
46 | spin_lock_init(&emu->voice_lock); | |
47 | init_MUTEX(&emu->register_mutex); | |
48 | ||
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 | ||
65 | ||
66 | /* | |
67 | */ | |
68 | int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name) | |
69 | { | |
70 | int err; | |
71 | snd_sf_callback_t sf_cb; | |
72 | ||
73 | snd_assert(emu->hw != NULL, return -EINVAL); | |
74 | snd_assert(emu->max_voices > 0, return -EINVAL); | |
75 | snd_assert(card != NULL, return -EINVAL); | |
76 | snd_assert(name != NULL, return -EINVAL); | |
77 | ||
78 | emu->card = card; | |
79 | emu->name = snd_kmalloc_strdup(name, GFP_KERNEL); | |
80 | emu->voices = kcalloc(emu->max_voices, sizeof(snd_emux_voice_t), GFP_KERNEL); | |
81 | if (emu->voices == NULL) | |
82 | return -ENOMEM; | |
83 | ||
84 | /* create soundfont list */ | |
85 | memset(&sf_cb, 0, sizeof(sf_cb)); | |
86 | sf_cb.private_data = emu; | |
87 | sf_cb.sample_new = (snd_sf_sample_new_t)emu->ops.sample_new; | |
88 | sf_cb.sample_free = (snd_sf_sample_free_t)emu->ops.sample_free; | |
89 | sf_cb.sample_reset = (snd_sf_sample_reset_t)emu->ops.sample_reset; | |
90 | emu->sflist = snd_sf_new(&sf_cb, emu->memhdr); | |
91 | if (emu->sflist == NULL) | |
92 | return -ENOMEM; | |
93 | ||
94 | if ((err = snd_emux_init_hwdep(emu)) < 0) | |
95 | return err; | |
96 | ||
97 | snd_emux_init_voices(emu); | |
98 | ||
99 | snd_emux_init_seq(emu, card, index); | |
100 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
101 | snd_emux_init_seq_oss(emu); | |
102 | #endif | |
103 | snd_emux_init_virmidi(emu, card); | |
104 | ||
105 | #ifdef CONFIG_PROC_FS | |
106 | snd_emux_proc_init(emu, card, index); | |
107 | #endif | |
108 | return 0; | |
109 | } | |
110 | ||
111 | ||
112 | /* | |
113 | */ | |
114 | int snd_emux_free(snd_emux_t *emu) | |
115 | { | |
116 | unsigned long flags; | |
117 | ||
118 | if (! emu) | |
119 | return -EINVAL; | |
120 | ||
121 | spin_lock_irqsave(&emu->voice_lock, flags); | |
122 | if (emu->timer_active) | |
123 | del_timer(&emu->tlist); | |
124 | spin_unlock_irqrestore(&emu->voice_lock, flags); | |
125 | ||
126 | #ifdef CONFIG_PROC_FS | |
127 | snd_emux_proc_free(emu); | |
128 | #endif | |
129 | snd_emux_delete_virmidi(emu); | |
130 | #ifdef CONFIG_SND_SEQUENCER_OSS | |
131 | snd_emux_detach_seq_oss(emu); | |
132 | #endif | |
133 | snd_emux_detach_seq(emu); | |
134 | ||
135 | snd_emux_delete_hwdep(emu); | |
136 | ||
137 | if (emu->sflist) | |
138 | snd_sf_free(emu->sflist); | |
139 | ||
140 | kfree(emu->voices); | |
141 | kfree(emu->name); | |
142 | kfree(emu); | |
143 | return 0; | |
144 | } | |
145 | ||
146 | ||
147 | EXPORT_SYMBOL(snd_emux_new); | |
148 | EXPORT_SYMBOL(snd_emux_register); | |
149 | EXPORT_SYMBOL(snd_emux_free); | |
150 | ||
151 | EXPORT_SYMBOL(snd_emux_terminate_all); | |
152 | EXPORT_SYMBOL(snd_emux_lock_voice); | |
153 | EXPORT_SYMBOL(snd_emux_unlock_voice); | |
154 | ||
155 | /* soundfont.c */ | |
156 | EXPORT_SYMBOL(snd_sf_linear_to_log); | |
157 | ||
158 | ||
159 | /* | |
160 | * INIT part | |
161 | */ | |
162 | ||
163 | static int __init alsa_emux_init(void) | |
164 | { | |
165 | return 0; | |
166 | } | |
167 | ||
168 | static void __exit alsa_emux_exit(void) | |
169 | { | |
170 | } | |
171 | ||
172 | module_init(alsa_emux_init) | |
173 | module_exit(alsa_emux_exit) |