[linux-block.git] / sound / synth / emux / emux.c

/*
 *  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 <linux/string.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(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;

	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;
}


/*
 */
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;

	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 = 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;
}


/*
 */
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);

	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)
Commit	Line	Data
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
	21	#include <sound/driver.h>
	22	#include <linux/wait.h>
	23	#include <linux/sched.h>
	24	#include <linux/slab.h>
543537bd	25	#include <linux/string.h>
1da177e4 LT	26	#include <sound/core.h>
	27	#include <sound/emux_synth.h>
	28	#include <linux/init.h>
	29	#include "emux_voice.h"
	30
	31	MODULE_AUTHOR("Takashi Iwai");
	32	MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
	33	MODULE_LICENSE("GPL");
	34
	35	/*
	36	* create a new hardware dependent device for Emu8000/Emu10k1
	37	*/
03da312a	38	int snd_emux_new(struct snd_emux **remu)
1da177e4	39	{
03da312a	40	struct snd_emux *emu;
1da177e4 LT	41
1da177e4 LT	42	*remu = NULL;
561b220a	43	emu = kzalloc(sizeof(*emu), GFP_KERNEL);
1da177e4 LT	44	if (emu == NULL)
	45	return -ENOMEM;
	46
	47	spin_lock_init(&emu->voice_lock);
ef9f0a42	48	mutex_init(&emu->register_mutex);
1da177e4 LT	49
	50	emu->client = -1;
	51	#ifdef CONFIG_SND_SEQUENCER_OSS
	52	emu->oss_synth = NULL;
	53	#endif
	54	emu->max_voices = 0;
	55	emu->use_time = 0;
	56
	57	init_timer(&emu->tlist);
	58	emu->tlist.function = snd_emux_timer_callback;
	59	emu->tlist.data = (unsigned long)emu;
	60	emu->timer_active = 0;
	61
	62	*remu = emu;
	63	return 0;
	64	}
	65
	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,
03da312a TI	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	{
1da177e4 LT	94	int err;
03da312a	95	struct snd_sf_callback sf_cb;
1da177e4 LT	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;
543537bd	103	emu->name = kstrdup(name, GFP_KERNEL);
03da312a TI	104	emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
03da312a TI	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
	139
	140	/*
	141	*/
03da312a	142	int snd_emux_free(struct snd_emux *emu)
1da177e4 LT	143	{
	144	unsigned long flags;
	145
	146	if (! emu)
	147	return -EINVAL;
	148
	149	spin_lock_irqsave(&emu->voice_lock, flags);
	150	if (emu->timer_active)
	151	del_timer(&emu->tlist);
	152	spin_unlock_irqrestore(&emu->voice_lock, flags);
	153
	154	#ifdef CONFIG_PROC_FS
	155	snd_emux_proc_free(emu);
	156	#endif
	157	snd_emux_delete_virmidi(emu);
	158	#ifdef CONFIG_SND_SEQUENCER_OSS
	159	snd_emux_detach_seq_oss(emu);
	160	#endif
	161	snd_emux_detach_seq(emu);
	162
	163	snd_emux_delete_hwdep(emu);
	164
	165	if (emu->sflist)
	166	snd_sf_free(emu->sflist);
	167
	168	kfree(emu->voices);
	169	kfree(emu->name);
	170	kfree(emu);
	171	return 0;
	172	}
	173
	174
	175	EXPORT_SYMBOL(snd_emux_new);
	176	EXPORT_SYMBOL(snd_emux_register);
	177	EXPORT_SYMBOL(snd_emux_free);
	178
	179	EXPORT_SYMBOL(snd_emux_terminate_all);
	180	EXPORT_SYMBOL(snd_emux_lock_voice);
	181	EXPORT_SYMBOL(snd_emux_unlock_voice);
	182
	183	/* soundfont.c */
	184	EXPORT_SYMBOL(snd_sf_linear_to_log);
	185
	186
	187	/*
	188	* INIT part
	189	*/
	190
	191	static int __init alsa_emux_init(void)
	192	{
	193	return 0;
	194	}
	195
	196	static void __exit alsa_emux_exit(void)
	197	{
	198	}
	199
	200	module_init(alsa_emux_init)
	201	module_exit(alsa_emux_exit)