[deliverable/linux.git] / sound / pci / emu10k1 / emu10k1_synth.c

/*
 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
 *
 *  Routines for control of EMU10K1 WaveTable synth
 *
 *   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 "emu10k1_synth_local.h"
#include <linux/init.h>

MODULE_AUTHOR("Takashi Iwai");
MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
MODULE_LICENSE("GPL");

/*
 * create a new hardware dependent device for Emu10k1
 */
static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
{
	struct snd_emux *emux;
	struct snd_emu10k1 *hw;
	struct snd_emu10k1_synth_arg *arg;
	unsigned long flags;

	arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
	if (arg == NULL)
		return -EINVAL;

	if (arg->seq_ports <= 0)
		return 0; /* nothing */
	if (arg->max_voices < 1)
		arg->max_voices = 1;
	else if (arg->max_voices > 64)
		arg->max_voices = 64;

	if (snd_emux_new(&emux) < 0)
		return -ENOMEM;

	snd_emu10k1_ops_setup(emux);
	hw = arg->hwptr;
	emux->hw = hw;
	emux->max_voices = arg->max_voices;
	emux->num_ports = arg->seq_ports;
	emux->pitch_shift = -501;
	emux->memhdr = hw->memhdr;
	/* maximum two ports */
	emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
	/* audigy has two external midis */
	emux->midi_devidx = hw->audigy ? 2 : 1;
	emux->linear_panning = 0;
	emux->hwdep_idx = 2; /* FIXED */

	if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
		snd_emux_free(emux);
		return -ENOMEM;
	}

	spin_lock_irqsave(&hw->voice_lock, flags);
	hw->synth = emux;
	hw->get_synth_voice = snd_emu10k1_synth_get_voice;
	spin_unlock_irqrestore(&hw->voice_lock, flags);

	dev->driver_data = emux;

	return 0;
}

static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
{
	struct snd_emux *emux;
	struct snd_emu10k1 *hw;
	unsigned long flags;

	if (dev->driver_data == NULL)
		return 0; /* not registered actually */

	emux = dev->driver_data;

	hw = emux->hw;
	spin_lock_irqsave(&hw->voice_lock, flags);
	hw->synth = NULL;
	hw->get_synth_voice = NULL;
	spin_unlock_irqrestore(&hw->voice_lock, flags);

	snd_emux_free(emux);
	return 0;
}

/*
 *  INIT part
 */

static int __init alsa_emu10k1_synth_init(void)
{
	
	static struct snd_seq_dev_ops ops = {
		snd_emu10k1_synth_new_device,
		snd_emu10k1_synth_delete_device,
	};
	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
					      sizeof(struct snd_emu10k1_synth_arg));
}

static void __exit alsa_emu10k1_synth_exit(void)
{
	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
}

module_init(alsa_emu10k1_synth_init)
module_exit(alsa_emu10k1_synth_exit)
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
	3	*
	4	* Routines for control of EMU10K1 WaveTable synth
	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 "emu10k1_synth_local.h"
	22	#include <linux/init.h>
	23
	24	MODULE_AUTHOR("Takashi Iwai");
	25	MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
	26	MODULE_LICENSE("GPL");
	27
	28	/*
	29	* create a new hardware dependent device for Emu10k1
	30	*/
eb4698f3	31	static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
1da177e4	32	{
c94fa4c9	33	struct snd_emux *emux;
eb4698f3 TI	34	struct snd_emu10k1 *hw;
eb4698f3 TI	35	struct snd_emu10k1_synth_arg *arg;
1da177e4 LT	36	unsigned long flags;
	37
	38	arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
	39	if (arg == NULL)
	40	return -EINVAL;
	41
	42	if (arg->seq_ports <= 0)
	43	return 0; /* nothing */
	44	if (arg->max_voices < 1)
	45	arg->max_voices = 1;
	46	else if (arg->max_voices > 64)
	47	arg->max_voices = 64;
	48
c94fa4c9	49	if (snd_emux_new(&emux) < 0)
1da177e4 LT	50	return -ENOMEM;
1da177e4 LT	51
c94fa4c9 JCD	52	snd_emu10k1_ops_setup(emux);
	53	hw = arg->hwptr;
	54	emux->hw = hw;
	55	emux->max_voices = arg->max_voices;
	56	emux->num_ports = arg->seq_ports;
	57	emux->pitch_shift = -501;
	58	emux->memhdr = hw->memhdr;
	59	/* maximum two ports */
	60	emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
	61	/* audigy has two external midis */
	62	emux->midi_devidx = hw->audigy ? 2 : 1;
	63	emux->linear_panning = 0;
	64	emux->hwdep_idx = 2; /* FIXED */
	65
	66	if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
	67	snd_emux_free(emux);
1da177e4 LT	68	return -ENOMEM;
	69	}
	70
	71	spin_lock_irqsave(&hw->voice_lock, flags);
c94fa4c9	72	hw->synth = emux;
1da177e4 LT	73	hw->get_synth_voice = snd_emu10k1_synth_get_voice;
	74	spin_unlock_irqrestore(&hw->voice_lock, flags);
	75
c94fa4c9	76	dev->driver_data = emux;
1da177e4 LT	77
	78	return 0;
	79	}
	80
eb4698f3	81	static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
1da177e4	82	{
c94fa4c9	83	struct snd_emux *emux;
eb4698f3	84	struct snd_emu10k1 *hw;
1da177e4 LT	85	unsigned long flags;
	86
	87	if (dev->driver_data == NULL)
	88	return 0; /* not registered actually */
	89
c94fa4c9	90	emux = dev->driver_data;
1da177e4	91
c94fa4c9	92	hw = emux->hw;
1da177e4 LT	93	spin_lock_irqsave(&hw->voice_lock, flags);
	94	hw->synth = NULL;
	95	hw->get_synth_voice = NULL;
	96	spin_unlock_irqrestore(&hw->voice_lock, flags);
	97
c94fa4c9	98	snd_emux_free(emux);
1da177e4 LT	99	return 0;
	100	}
	101
	102	/*
	103	* INIT part
	104	*/
	105
	106	static int __init alsa_emu10k1_synth_init(void)
	107	{
	108
eb4698f3	109	static struct snd_seq_dev_ops ops = {
1da177e4 LT	110	snd_emu10k1_synth_new_device,
	111	snd_emu10k1_synth_delete_device,
	112	};
eb4698f3 TI	113	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
eb4698f3 TI	114	sizeof(struct snd_emu10k1_synth_arg));
1da177e4 LT	115	}
	116
	117	static void __exit alsa_emu10k1_synth_exit(void)
	118	{
	119	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
	120	}
	121
	122	module_init(alsa_emu10k1_synth_init)
	123	module_exit(alsa_emu10k1_synth_exit)