[deliverable/linux.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 <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);

	snd_emux_proc_init(emu, card, index);
	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);

	snd_emux_proc_free(emu);
	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)
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
1da177e4	21	#include <linux/wait.h>
1da177e4	22	#include <linux/slab.h>
543537bd	23	#include <linux/string.h>
1da177e4 LT	24	#include <sound/core.h>
	25	#include <sound/emux_synth.h>
	26	#include <linux/init.h>
da155d5b	27	#include <linux/module.h>
1da177e4 LT	28	#include "emux_voice.h"
	29
	30	MODULE_AUTHOR("Takashi Iwai");
	31	MODULE_DESCRIPTION("Routines for control of EMU WaveTable chip");
	32	MODULE_LICENSE("GPL");
	33
	34	/*
	35	* create a new hardware dependent device for Emu8000/Emu10k1
	36	*/
03da312a	37	int snd_emux_new(struct snd_emux **remu)
1da177e4	38	{
03da312a	39	struct snd_emux *emu;
1da177e4 LT	40
1da177e4 LT	41	*remu = NULL;
561b220a	42	emu = kzalloc(sizeof(*emu), GFP_KERNEL);
1da177e4 LT	43	if (emu == NULL)
	44	return -ENOMEM;
	45
	46	spin_lock_init(&emu->voice_lock);
ef9f0a42	47	mutex_init(&emu->register_mutex);
1da177e4 LT	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
abd08352	56	setup_timer(&emu->tlist, snd_emux_timer_callback, (unsigned long)emu);
1da177e4 LT	57	emu->timer_active = 0;
	58
	59	*remu = emu;
	60	return 0;
	61	}
	62
95ff1756	63	EXPORT_SYMBOL(snd_emux_new);
1da177e4 LT	64
	65	/*
	66	*/
03da312a TI	67	static int sf_sample_new(void private_data, struct snd_sf_sample sp,
	68	struct snd_util_memhdr *hdr,
	69	const void __user *buf, long count)
a57d1515	70	{
03da312a	71	struct snd_emux *emu = private_data;
a57d1515 TI	72	return emu->ops.sample_new(emu, sp, hdr, buf, count);
	73
	74	}
	75
03da312a TI	76	static int sf_sample_free(void private_data, struct snd_sf_sample sp,
03da312a TI	77	struct snd_util_memhdr *hdr)
a57d1515	78	{
03da312a	79	struct snd_emux *emu = private_data;
a57d1515 TI	80	return emu->ops.sample_free(emu, sp, hdr);
	81
	82	}
	83
	84	static void sf_sample_reset(void *private_data)
	85	{
03da312a	86	struct snd_emux *emu = private_data;
a57d1515 TI	87	emu->ops.sample_reset(emu);
	88	}
	89
03da312a	90	int snd_emux_register(struct snd_emux emu, struct snd_card card, int index, char *name)
1da177e4 LT	91	{
1da177e4 LT	92	int err;
03da312a	93	struct snd_sf_callback sf_cb;
1da177e4	94
5e246b85 TI	95	if (snd_BUG_ON(!emu->hw \|\| emu->max_voices <= 0))
	96	return -EINVAL;
	97	if (snd_BUG_ON(!card \|\| !name))
	98	return -EINVAL;
1da177e4 LT	99
1da177e4 LT	100	emu->card = card;
543537bd	101	emu->name = kstrdup(name, GFP_KERNEL);
03da312a TI	102	emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
03da312a TI	103	GFP_KERNEL);
1da177e4 LT	104	if (emu->voices == NULL)
	105	return -ENOMEM;
	106
	107	/* create soundfont list */
	108	memset(&sf_cb, 0, sizeof(sf_cb));
	109	sf_cb.private_data = emu;
a57d1515 TI	110	if (emu->ops.sample_new)
	111	sf_cb.sample_new = sf_sample_new;
	112	if (emu->ops.sample_free)
	113	sf_cb.sample_free = sf_sample_free;
	114	if (emu->ops.sample_reset)
	115	sf_cb.sample_reset = sf_sample_reset;
1da177e4 LT	116	emu->sflist = snd_sf_new(&sf_cb, emu->memhdr);
	117	if (emu->sflist == NULL)
	118	return -ENOMEM;
	119
	120	if ((err = snd_emux_init_hwdep(emu)) < 0)
	121	return err;
	122
	123	snd_emux_init_voices(emu);
	124
	125	snd_emux_init_seq(emu, card, index);
	126	#ifdef CONFIG_SND_SEQUENCER_OSS
	127	snd_emux_init_seq_oss(emu);
	128	#endif
	129	snd_emux_init_virmidi(emu, card);
	130
1da177e4	131	snd_emux_proc_init(emu, card, index);
1da177e4 LT	132	return 0;
	133	}
	134
95ff1756	135	EXPORT_SYMBOL(snd_emux_register);
1da177e4 LT	136
	137	/*
	138	*/
03da312a	139	int snd_emux_free(struct snd_emux *emu)
1da177e4 LT	140	{
	141	unsigned long flags;
	142
	143	if (! emu)
	144	return -EINVAL;
	145
	146	spin_lock_irqsave(&emu->voice_lock, flags);
	147	if (emu->timer_active)
	148	del_timer(&emu->tlist);
	149	spin_unlock_irqrestore(&emu->voice_lock, flags);
	150
1da177e4	151	snd_emux_proc_free(emu);
1da177e4 LT	152	snd_emux_delete_virmidi(emu);
	153	#ifdef CONFIG_SND_SEQUENCER_OSS
	154	snd_emux_detach_seq_oss(emu);
	155	#endif
	156	snd_emux_detach_seq(emu);
1da177e4	157	snd_emux_delete_hwdep(emu);
b172e0aa	158	snd_sf_free(emu->sflist);
1da177e4 LT	159	kfree(emu->voices);
	160	kfree(emu->name);
	161	kfree(emu);
	162	return 0;
	163	}
	164
1da177e4 LT	165	EXPORT_SYMBOL(snd_emux_free);
1da177e4 LT	166
1da177e4 LT	167
	168	/*
	169	* INIT part
	170	*/
	171
	172	static int __init alsa_emux_init(void)
	173	{
	174	return 0;
	175	}
	176
	177	static void __exit alsa_emux_exit(void)
	178	{
	179	}
	180
	181	module_init(alsa_emux_init)
	182	module_exit(alsa_emux_exit)