e68235c8aa
This is only a very partial fix - the frequency-dependent envelope & LFO register values aren't adjusted. But I'm not sure they were even correct at 48 kHz to start with, as most of them are precalculated by common code which assumes an EMU8K-specific 44.1 kHz word clock, and it seems somewhat unlikely that the hardware's register interpretation was adjusted to compensate for the different word clock. In any case I'm not going to spend time on fixing that, as this code is unlikely to be actually used by anyone today. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230612191325.1315854-6-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
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*
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* Routines for control of EMU10K1 WaveTable synth
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*/
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#include "emu10k1_synth_local.h"
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#include <linux/init.h>
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#include <linux/module.h>
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MODULE_AUTHOR("Takashi Iwai");
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MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth");
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MODULE_LICENSE("GPL");
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/*
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* create a new hardware dependent device for Emu10k1
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*/
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static int snd_emu10k1_synth_probe(struct device *_dev)
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{
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struct snd_seq_device *dev = to_seq_dev(_dev);
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struct snd_emux *emux;
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struct snd_emu10k1 *hw;
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struct snd_emu10k1_synth_arg *arg;
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unsigned long flags;
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arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
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if (arg == NULL)
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return -EINVAL;
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if (arg->seq_ports <= 0)
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return 0; /* nothing */
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if (arg->max_voices < 1)
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arg->max_voices = 1;
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else if (arg->max_voices > 64)
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arg->max_voices = 64;
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if (snd_emux_new(&emux) < 0)
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return -ENOMEM;
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snd_emu10k1_ops_setup(emux);
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hw = arg->hwptr;
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emux->hw = hw;
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emux->max_voices = arg->max_voices;
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emux->num_ports = arg->seq_ports;
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emux->memhdr = hw->memhdr;
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/* maximum two ports */
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emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
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/* audigy has two external midis */
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emux->midi_devidx = hw->audigy ? 2 : 1;
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emux->linear_panning = 0;
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emux->hwdep_idx = 2; /* FIXED */
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if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
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snd_emux_free(emux);
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return -ENOMEM;
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}
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spin_lock_irqsave(&hw->voice_lock, flags);
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hw->synth = emux;
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hw->get_synth_voice = snd_emu10k1_synth_get_voice;
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spin_unlock_irqrestore(&hw->voice_lock, flags);
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dev->driver_data = emux;
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return 0;
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}
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static int snd_emu10k1_synth_remove(struct device *_dev)
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{
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struct snd_seq_device *dev = to_seq_dev(_dev);
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struct snd_emux *emux;
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struct snd_emu10k1 *hw;
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unsigned long flags;
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if (dev->driver_data == NULL)
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return 0; /* not registered actually */
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emux = dev->driver_data;
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hw = emux->hw;
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spin_lock_irqsave(&hw->voice_lock, flags);
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hw->synth = NULL;
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hw->get_synth_voice = NULL;
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spin_unlock_irqrestore(&hw->voice_lock, flags);
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snd_emux_free(emux);
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return 0;
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}
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/*
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* INIT part
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*/
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static struct snd_seq_driver emu10k1_synth_driver = {
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.driver = {
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.name = KBUILD_MODNAME,
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.probe = snd_emu10k1_synth_probe,
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.remove = snd_emu10k1_synth_remove,
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},
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.id = SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
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.argsize = sizeof(struct snd_emu10k1_synth_arg),
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};
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module_snd_seq_driver(emu10k1_synth_driver);
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