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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | /* * 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> 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_new_device(snd_seq_device_t *dev) { snd_emux_t *emu; emu10k1_t *hw; snd_emu10k1_synth_arg_t *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(&emu) < 0) return -ENOMEM; snd_emu10k1_ops_setup(emu); emu->hw = hw = arg->hwptr; emu->max_voices = arg->max_voices; emu->num_ports = arg->seq_ports; emu->pitch_shift = -501; emu->memhdr = hw->memhdr; emu->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2; /* maximum two ports */ emu->midi_devidx = hw->audigy ? 2 : 1; /* audigy has two external midis */ emu->linear_panning = 0; emu->hwdep_idx = 2; /* FIXED */ if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) { snd_emux_free(emu); emu->hw = NULL; return -ENOMEM; } spin_lock_irqsave(&hw->voice_lock, flags); hw->synth = emu; hw->get_synth_voice = snd_emu10k1_synth_get_voice; spin_unlock_irqrestore(&hw->voice_lock, flags); dev->driver_data = emu; return 0; } static int snd_emu10k1_synth_delete_device(snd_seq_device_t *dev) { snd_emux_t *emu; emu10k1_t *hw; unsigned long flags; if (dev->driver_data == NULL) return 0; /* not registered actually */ emu = dev->driver_data; hw = emu->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(emu); return 0; } /* * INIT part */ static int __init alsa_emu10k1_synth_init(void) { static snd_seq_dev_ops_t ops = { snd_emu10k1_synth_new_device, snd_emu10k1_synth_delete_device, }; return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops, sizeof(snd_emu10k1_synth_arg_t)); } static void __exit alsa_emu10k1_synth_exit(void) { snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH); } module_init(alsa_emu10k1_synth_init) module_exit(alsa_emu10k1_synth_exit) |