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21#include <sound/driver.h>
22#include <linux/wait.h>
23#include <linux/slab.h>
24#include <linux/string.h>
25#include <sound/core.h>
26#include <sound/emux_synth.h>
27#include <linux/init.h>
28#include "emux_voice.h"
29
30MODULE_AUTHOR("Takashi Iwai");
31MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
32MODULE_LICENSE("GPL");
33
34
35
36
37int snd_emux_new(struct snd_emux **remu)
38{
39 struct snd_emux *emu;
40
41 *remu = NULL;
42 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
43 if (emu == NULL)
44 return -ENOMEM;
45
46 spin_lock_init(&emu->voice_lock);
47 mutex_init(&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
65EXPORT_SYMBOL(snd_emux_new);
66
67
68
69static 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)
72{
73 struct snd_emux *emu = private_data;
74 return emu->ops.sample_new(emu, sp, hdr, buf, count);
75
76}
77
78static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
79 struct snd_util_memhdr *hdr)
80{
81 struct snd_emux *emu = private_data;
82 return emu->ops.sample_free(emu, sp, hdr);
83
84}
85
86static void sf_sample_reset(void *private_data)
87{
88 struct snd_emux *emu = private_data;
89 emu->ops.sample_reset(emu);
90}
91
92int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
93{
94 int err;
95 struct snd_sf_callback sf_cb;
96
97 snd_assert(emu->hw != NULL, return -EINVAL);
98 snd_assert(emu->max_voices > 0, return -EINVAL);
99 snd_assert(card != NULL, return -EINVAL);
100 snd_assert(name != NULL, return -EINVAL);
101
102 emu->card = card;
103 emu->name = kstrdup(name, GFP_KERNEL);
104 emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
105 GFP_KERNEL);
106 if (emu->voices == NULL)
107 return -ENOMEM;
108
109
110 memset(&sf_cb, 0, sizeof(sf_cb));
111 sf_cb.private_data = emu;
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;
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
139EXPORT_SYMBOL(snd_emux_register);
140
141
142
143int snd_emux_free(struct snd_emux *emu)
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
175EXPORT_SYMBOL(snd_emux_free);
176
177
178
179
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)
193