1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
5 * Routines for control of EMU WaveTable chip
8 #include <linux/wait.h>
9 #include <linux/slab.h>
10 #include <linux/string.h>
11 #include <sound/core.h>
12 #include <sound/emux_synth.h>
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include "emux_voice.h"
17 MODULE_AUTHOR("Takashi Iwai");
18 MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
19 MODULE_LICENSE("GPL");
22 * create a new hardware dependent device for Emu8000/Emu10k1
24 int snd_emux_new(struct snd_emux **remu)
29 emu = kzalloc(sizeof(*emu), GFP_KERNEL);
33 spin_lock_init(&emu->voice_lock);
34 mutex_init(&emu->register_mutex);
37 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
38 emu->oss_synth = NULL;
43 timer_setup(&emu->tlist, snd_emux_timer_callback, 0);
44 emu->timer_active = 0;
50 EXPORT_SYMBOL(snd_emux_new);
54 static int sf_sample_new(void *private_data, struct snd_sf_sample *sp,
55 struct snd_util_memhdr *hdr,
56 const void __user *buf, long count)
58 struct snd_emux *emu = private_data;
59 return emu->ops.sample_new(emu, sp, hdr, buf, count);
63 static int sf_sample_free(void *private_data, struct snd_sf_sample *sp,
64 struct snd_util_memhdr *hdr)
66 struct snd_emux *emu = private_data;
67 return emu->ops.sample_free(emu, sp, hdr);
71 static void sf_sample_reset(void *private_data)
73 struct snd_emux *emu = private_data;
74 emu->ops.sample_reset(emu);
77 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name)
80 struct snd_sf_callback sf_cb;
82 if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0))
84 if (snd_BUG_ON(!card || !name))
88 emu->name = kstrdup(name, GFP_KERNEL);
89 emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
91 if (emu->name == NULL || emu->voices == NULL)
94 /* create soundfont list */
95 memset(&sf_cb, 0, sizeof(sf_cb));
96 sf_cb.private_data = emu;
97 if (emu->ops.sample_new)
98 sf_cb.sample_new = sf_sample_new;
99 if (emu->ops.sample_free)
100 sf_cb.sample_free = sf_sample_free;
101 if (emu->ops.sample_reset)
102 sf_cb.sample_reset = sf_sample_reset;
103 emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
104 if (emu->sflist == NULL)
107 if ((err = snd_emux_init_hwdep(emu)) < 0)
110 snd_emux_init_voices(emu);
112 snd_emux_init_seq(emu, card, index);
113 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
114 snd_emux_init_seq_oss(emu);
116 snd_emux_init_virmidi(emu, card);
118 snd_emux_proc_init(emu, card, index);
122 EXPORT_SYMBOL(snd_emux_register);
126 int snd_emux_free(struct snd_emux *emu)
131 del_timer_sync(&emu->tlist);
133 snd_emux_proc_free(emu);
134 snd_emux_delete_virmidi(emu);
135 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
136 snd_emux_detach_seq_oss(emu);
138 snd_emux_detach_seq(emu);
139 snd_emux_delete_hwdep(emu);
140 snd_sf_free(emu->sflist);
147 EXPORT_SYMBOL(snd_emux_free);