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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 | ||
1da177e4 | 21 | #include <linux/wait.h> |
1da177e4 | 22 | #include <linux/slab.h> |
543537bd | 23 | #include <linux/string.h> |
1da177e4 LT |
24 | #include <sound/core.h> |
25 | #include <sound/emux_synth.h> | |
26 | #include <linux/init.h> | |
da155d5b | 27 | #include <linux/module.h> |
1da177e4 LT |
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 | */ | |
03da312a | 37 | int snd_emux_new(struct snd_emux **remu) |
1da177e4 | 38 | { |
03da312a | 39 | struct snd_emux *emu; |
1da177e4 LT |
40 | |
41 | *remu = NULL; | |
561b220a | 42 | emu = kzalloc(sizeof(*emu), GFP_KERNEL); |
1da177e4 LT |
43 | if (emu == NULL) |
44 | return -ENOMEM; | |
45 | ||
46 | spin_lock_init(&emu->voice_lock); | |
ef9f0a42 | 47 | mutex_init(&emu->register_mutex); |
1da177e4 LT |
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 | ||
95ff1756 | 65 | EXPORT_SYMBOL(snd_emux_new); |
1da177e4 LT |
66 | |
67 | /* | |
68 | */ | |
03da312a TI |
69 | static 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) | |
a57d1515 | 72 | { |
03da312a | 73 | struct snd_emux *emu = private_data; |
a57d1515 TI |
74 | return emu->ops.sample_new(emu, sp, hdr, buf, count); |
75 | ||
76 | } | |
77 | ||
03da312a TI |
78 | static int sf_sample_free(void *private_data, struct snd_sf_sample *sp, |
79 | struct snd_util_memhdr *hdr) | |
a57d1515 | 80 | { |
03da312a | 81 | struct snd_emux *emu = private_data; |
a57d1515 TI |
82 | return emu->ops.sample_free(emu, sp, hdr); |
83 | ||
84 | } | |
85 | ||
86 | static void sf_sample_reset(void *private_data) | |
87 | { | |
03da312a | 88 | struct snd_emux *emu = private_data; |
a57d1515 TI |
89 | emu->ops.sample_reset(emu); |
90 | } | |
91 | ||
03da312a | 92 | int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name) |
1da177e4 LT |
93 | { |
94 | int err; | |
03da312a | 95 | struct snd_sf_callback sf_cb; |
1da177e4 | 96 | |
5e246b85 TI |
97 | if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0)) |
98 | return -EINVAL; | |
99 | if (snd_BUG_ON(!card || !name)) | |
100 | return -EINVAL; | |
1da177e4 LT |
101 | |
102 | emu->card = card; | |
543537bd | 103 | emu->name = kstrdup(name, GFP_KERNEL); |
03da312a TI |
104 | emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice), |
105 | GFP_KERNEL); | |
1da177e4 LT |
106 | 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; | |
a57d1515 TI |
112 | 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; | |
1da177e4 LT |
118 | 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 | ||
95ff1756 | 139 | EXPORT_SYMBOL(snd_emux_register); |
1da177e4 LT |
140 | |
141 | /* | |
142 | */ | |
03da312a | 143 | int snd_emux_free(struct snd_emux *emu) |
1da177e4 LT |
144 | { |
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 | ||
1da177e4 LT |
175 | EXPORT_SYMBOL(snd_emux_free); |
176 | ||
1da177e4 LT |
177 | |
178 | /* | |
179 | * INIT part | |
180 | */ | |
181 | ||
182 | static int __init alsa_emux_init(void) | |
183 | { | |
184 | return 0; | |
185 | } | |
186 | ||
187 | static void __exit alsa_emux_exit(void) | |
188 | { | |
189 | } | |
190 | ||
191 | module_init(alsa_emux_init) | |
192 | module_exit(alsa_emux_exit) |