1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
121 lines
3.1 KiB
C
121 lines
3.1 KiB
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(snd_seq_device_t *dev)
|
|
{
|
|
snd_emux_t *emu;
|
|
emu10k1_t *hw;
|
|
snd_emu10k1_synth_arg_t *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(&emu) < 0)
|
|
return -ENOMEM;
|
|
|
|
snd_emu10k1_ops_setup(emu);
|
|
emu->hw = hw = arg->hwptr;
|
|
emu->max_voices = arg->max_voices;
|
|
emu->num_ports = arg->seq_ports;
|
|
emu->pitch_shift = -501;
|
|
emu->memhdr = hw->memhdr;
|
|
emu->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2; /* maximum two ports */
|
|
emu->midi_devidx = hw->audigy ? 2 : 1; /* audigy has two external midis */
|
|
emu->linear_panning = 0;
|
|
emu->hwdep_idx = 2; /* FIXED */
|
|
|
|
if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) {
|
|
snd_emux_free(emu);
|
|
emu->hw = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
spin_lock_irqsave(&hw->voice_lock, flags);
|
|
hw->synth = emu;
|
|
hw->get_synth_voice = snd_emu10k1_synth_get_voice;
|
|
spin_unlock_irqrestore(&hw->voice_lock, flags);
|
|
|
|
dev->driver_data = emu;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_emu10k1_synth_delete_device(snd_seq_device_t *dev)
|
|
{
|
|
snd_emux_t *emu;
|
|
emu10k1_t *hw;
|
|
unsigned long flags;
|
|
|
|
if (dev->driver_data == NULL)
|
|
return 0; /* not registered actually */
|
|
|
|
emu = dev->driver_data;
|
|
|
|
hw = emu->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(emu);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* INIT part
|
|
*/
|
|
|
|
static int __init alsa_emu10k1_synth_init(void)
|
|
{
|
|
|
|
static snd_seq_dev_ops_t 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(snd_emu10k1_synth_arg_t));
|
|
}
|
|
|
|
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)
|