diff options
Diffstat (limited to 'kernel/sound/synth/emux/emux.c')
| -rw-r--r-- | kernel/sound/synth/emux/emux.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/kernel/sound/synth/emux/emux.c b/kernel/sound/synth/emux/emux.c new file mode 100644 index 000000000..49195325f --- /dev/null +++ b/kernel/sound/synth/emux/emux.c @@ -0,0 +1,186 @@ +/* + * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de> + * + * Routines for control of EMU WaveTable chip + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/wait.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <sound/core.h> +#include <sound/emux_synth.h> +#include <linux/init.h> +#include <linux/module.h> +#include "emux_voice.h" + +MODULE_AUTHOR("Takashi Iwai"); +MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip"); +MODULE_LICENSE("GPL"); + +/* + * create a new hardware dependent device for Emu8000/Emu10k1 + */ +int snd_emux_new(struct snd_emux **remu) +{ + struct snd_emux *emu; + + *remu = NULL; + emu = kzalloc(sizeof(*emu), GFP_KERNEL); + if (emu == NULL) + return -ENOMEM; + + spin_lock_init(&emu->voice_lock); + mutex_init(&emu->register_mutex); + + emu->client = -1; +#ifdef CONFIG_SND_SEQUENCER_OSS + emu->oss_synth = NULL; +#endif + emu->max_voices = 0; + emu->use_time = 0; + + setup_timer(&emu->tlist, snd_emux_timer_callback, (unsigned long)emu); + emu->timer_active = 0; + + *remu = emu; + return 0; +} + +EXPORT_SYMBOL(snd_emux_new); + +/* + */ +static int sf_sample_new(void *private_data, struct snd_sf_sample *sp, + struct snd_util_memhdr *hdr, + const void __user *buf, long count) +{ + struct snd_emux *emu = private_data; + return emu->ops.sample_new(emu, sp, hdr, buf, count); + +} + +static int sf_sample_free(void *private_data, struct snd_sf_sample *sp, + struct snd_util_memhdr *hdr) +{ + struct snd_emux *emu = private_data; + return emu->ops.sample_free(emu, sp, hdr); + +} + +static void sf_sample_reset(void *private_data) +{ + struct snd_emux *emu = private_data; + emu->ops.sample_reset(emu); +} + +int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name) +{ + int err; + struct snd_sf_callback sf_cb; + + if (snd_BUG_ON(!emu->hw || emu->max_voices <= 0)) + return -EINVAL; + if (snd_BUG_ON(!card || !name)) + return -EINVAL; + + emu->card = card; + emu->name = kstrdup(name, GFP_KERNEL); + emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice), + GFP_KERNEL); + if (emu->voices == NULL) + return -ENOMEM; + + /* create soundfont list */ + memset(&sf_cb, 0, sizeof(sf_cb)); + sf_cb.private_data = emu; + if (emu->ops.sample_new) + sf_cb.sample_new = sf_sample_new; + if (emu->ops.sample_free) + sf_cb.sample_free = sf_sample_free; + if (emu->ops.sample_reset) + sf_cb.sample_reset = sf_sample_reset; + emu->sflist = snd_sf_new(&sf_cb, emu->memhdr); + if (emu->sflist == NULL) + return -ENOMEM; + + if ((err = snd_emux_init_hwdep(emu)) < 0) + return err; + + snd_emux_init_voices(emu); + + snd_emux_init_seq(emu, card, index); +#ifdef CONFIG_SND_SEQUENCER_OSS + snd_emux_init_seq_oss(emu); +#endif + snd_emux_init_virmidi(emu, card); + +#ifdef CONFIG_PROC_FS + snd_emux_proc_init(emu, card, index); +#endif + return 0; +} + +EXPORT_SYMBOL(snd_emux_register); + +/* + */ +int snd_emux_free(struct snd_emux *emu) +{ + unsigned long flags; + + if (! emu) + return -EINVAL; + + spin_lock_irqsave(&emu->voice_lock, flags); + if (emu->timer_active) + del_timer(&emu->tlist); + spin_unlock_irqrestore(&emu->voice_lock, flags); + +#ifdef CONFIG_PROC_FS + snd_emux_proc_free(emu); +#endif + snd_emux_delete_virmidi(emu); +#ifdef CONFIG_SND_SEQUENCER_OSS + snd_emux_detach_seq_oss(emu); +#endif + snd_emux_detach_seq(emu); + snd_emux_delete_hwdep(emu); + snd_sf_free(emu->sflist); + kfree(emu->voices); + kfree(emu->name); + kfree(emu); + return 0; +} + +EXPORT_SYMBOL(snd_emux_free); + + +/* + * INIT part + */ + +static int __init alsa_emux_init(void) +{ + return 0; +} + +static void __exit alsa_emux_exit(void) +{ +} + +module_init(alsa_emux_init) +module_exit(alsa_emux_exit) |