1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
5 * Routines for control of EMU10K1 WaveTable synth
8 #include "emu10k1_synth_local.h"
9 #include <linux/init.h>
10 #include <linux/module.h>
12 MODULE_AUTHOR("Takashi Iwai");
13 MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
14 MODULE_LICENSE("GPL");
17 * create a new hardware dependent device for Emu10k1
19 static int snd_emu10k1_synth_probe(struct device *_dev)
21 struct snd_seq_device *dev = to_seq_dev(_dev);
22 struct snd_emux *emux;
23 struct snd_emu10k1 *hw;
24 struct snd_emu10k1_synth_arg *arg;
27 arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
31 if (arg->seq_ports <= 0)
32 return 0; /* nothing */
33 if (arg->max_voices < 1)
35 else if (arg->max_voices > 64)
38 if (snd_emux_new(&emux) < 0)
41 snd_emu10k1_ops_setup(emux);
44 emux->max_voices = arg->max_voices;
45 emux->num_ports = arg->seq_ports;
46 emux->memhdr = hw->memhdr;
47 /* maximum two ports */
48 emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
49 /* audigy has two external midis */
50 emux->midi_devidx = hw->audigy ? 2 : 1;
51 emux->linear_panning = 0;
52 emux->hwdep_idx = 2; /* FIXED */
54 if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
59 spin_lock_irqsave(&hw->voice_lock, flags);
61 hw->get_synth_voice = snd_emu10k1_synth_get_voice;
62 spin_unlock_irqrestore(&hw->voice_lock, flags);
64 dev->driver_data = emux;
69 static int snd_emu10k1_synth_remove(struct device *_dev)
71 struct snd_seq_device *dev = to_seq_dev(_dev);
72 struct snd_emux *emux;
73 struct snd_emu10k1 *hw;
76 if (dev->driver_data == NULL)
77 return 0; /* not registered actually */
79 emux = dev->driver_data;
82 spin_lock_irqsave(&hw->voice_lock, flags);
84 hw->get_synth_voice = NULL;
85 spin_unlock_irqrestore(&hw->voice_lock, flags);
95 static struct snd_seq_driver emu10k1_synth_driver = {
97 .name = KBUILD_MODNAME,
98 .probe = snd_emu10k1_synth_probe,
99 .remove = snd_emu10k1_synth_remove,
101 .id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
102 .argsize = sizeof(struct snd_emu10k1_synth_arg),
105 module_snd_seq_driver(emu10k1_synth_driver);