2 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
4 * Routines for control of EMU10K1 WaveTable synth
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.
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.
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
21 #include "emu10k1_synth_local.h"
22 #include <linux/init.h>
24 MODULE_AUTHOR("Takashi Iwai");
25 MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
26 MODULE_LICENSE("GPL");
29 * create a new hardware dependent device for Emu10k1
31 static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
34 struct snd_emu10k1 *hw;
35 struct snd_emu10k1_synth_arg *arg;
38 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
42 if (arg->seq_ports <= 0)
43 return 0; /* nothing */
44 if (arg->max_voices < 1)
46 else if (arg->max_voices > 64)
49 if (snd_emux_new(&emu) < 0)
52 snd_emu10k1_ops_setup(emu);
53 emu->hw = hw = arg->hwptr;
54 emu->max_voices = arg->max_voices;
55 emu->num_ports = arg->seq_ports;
56 emu->pitch_shift = -501;
57 emu->memhdr = hw->memhdr;
58 emu->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2; /* maximum two ports */
59 emu->midi_devidx = hw->audigy ? 2 : 1; /* audigy has two external midis */
60 emu->linear_panning = 0;
61 emu->hwdep_idx = 2; /* FIXED */
63 if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) {
68 spin_lock_irqsave(&hw->voice_lock, flags);
70 hw->get_synth_voice = snd_emu10k1_synth_get_voice;
71 spin_unlock_irqrestore(&hw->voice_lock, flags);
73 dev->driver_data = emu;
78 static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
81 struct snd_emu10k1 *hw;
84 if (dev->driver_data == NULL)
85 return 0; /* not registered actually */
87 emu = dev->driver_data;
90 spin_lock_irqsave(&hw->voice_lock, flags);
92 hw->get_synth_voice = NULL;
93 spin_unlock_irqrestore(&hw->voice_lock, flags);
103 static int __init alsa_emu10k1_synth_init(void)
106 static struct snd_seq_dev_ops ops = {
107 snd_emu10k1_synth_new_device,
108 snd_emu10k1_synth_delete_device,
110 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
111 sizeof(struct snd_emu10k1_synth_arg));
114 static void __exit alsa_emu10k1_synth_exit(void)
116 snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH);
119 module_init(alsa_emu10k1_synth_init)
120 module_exit(alsa_emu10k1_synth_exit)