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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | // SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de> * * Routines for control of EMU10K1 WaveTable synth */ #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; 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->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_irq(&hw->voice_lock); hw->synth = emux; hw->get_synth_voice = snd_emu10k1_synth_get_voice; spin_unlock_irq(&hw->voice_lock); 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; if (dev->driver_data == NULL) return 0; /* not registered actually */ emux = dev->driver_data; hw = emux->hw; spin_lock_irq(&hw->voice_lock); hw->synth = NULL; hw->get_synth_voice = NULL; spin_unlock_irq(&hw->voice_lock); 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); |