123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119 |
- /*
- * 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>
- #include <linux/module.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_probe(struct device *_dev)
- {
- struct snd_seq_device *dev = to_seq_dev(_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_remove(struct device *_dev)
- {
- struct snd_seq_device *dev = to_seq_dev(_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 struct snd_seq_driver emu10k1_synth_driver = {
- .driver = {
- .name = KBUILD_MODNAME,
- .probe = snd_emu10k1_synth_probe,
- .remove = snd_emu10k1_synth_remove,
- },
- .id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
- .argsize = sizeof(struct snd_emu10k1_synth_arg),
- };
- module_snd_seq_driver(emu10k1_synth_driver);
|