diff options
Diffstat (limited to 'sound/synth/emux/emux.c')
| -rw-r--r-- | sound/synth/emux/emux.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c new file mode 100644 index 00000000000..16f3b461627 --- /dev/null +++ b/sound/synth/emux/emux.c @@ -0,0 +1,173 @@ +/* + * 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 <sound/driver.h> +#include <linux/wait.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/emux_synth.h> +#include <linux/init.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(snd_emux_t **remu) +{ + snd_emux_t *emu; + + *remu = NULL; + emu = kcalloc(1, sizeof(*emu), GFP_KERNEL); + if (emu == NULL) + return -ENOMEM; + + spin_lock_init(&emu->voice_lock); + init_MUTEX(&emu->register_mutex); + + emu->client = -1; +#ifdef CONFIG_SND_SEQUENCER_OSS + emu->oss_synth = NULL; +#endif + emu->max_voices = 0; + emu->use_time = 0; + + init_timer(&emu->tlist); + emu->tlist.function = snd_emux_timer_callback; + emu->tlist.data = (unsigned long)emu; + emu->timer_active = 0; + + *remu = emu; + return 0; +} + + +/* + */ +int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name) +{ + int err; + snd_sf_callback_t sf_cb; + + snd_assert(emu->hw != NULL, return -EINVAL); + snd_assert(emu->max_voices > 0, return -EINVAL); + snd_assert(card != NULL, return -EINVAL); + snd_assert(name != NULL, return -EINVAL); + + emu->card = card; + emu->name = snd_kmalloc_strdup(name, GFP_KERNEL); + emu->voices = kcalloc(emu->max_voices, sizeof(snd_emux_voice_t), GFP_KERNEL); + if (emu->voices == NULL) + return -ENOMEM; + + /* create soundfont list */ + memset(&sf_cb, 0, sizeof(sf_cb)); + sf_cb.private_data = emu; + sf_cb.sample_new = (snd_sf_sample_new_t)emu->ops.sample_new; + sf_cb.sample_free = (snd_sf_sample_free_t)emu->ops.sample_free; + sf_cb.sample_reset = (snd_sf_sample_reset_t)emu->ops.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; +} + + +/* + */ +int snd_emux_free(snd_emux_t *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); + + if (emu->sflist) + snd_sf_free(emu->sflist); + + kfree(emu->voices); + kfree(emu->name); + kfree(emu); + return 0; +} + + +EXPORT_SYMBOL(snd_emux_new); +EXPORT_SYMBOL(snd_emux_register); +EXPORT_SYMBOL(snd_emux_free); + +EXPORT_SYMBOL(snd_emux_terminate_all); +EXPORT_SYMBOL(snd_emux_lock_voice); +EXPORT_SYMBOL(snd_emux_unlock_voice); + +/* soundfont.c */ +EXPORT_SYMBOL(snd_sf_linear_to_log); + + +/* + * 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) |