projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de> | |
| 3 | * | |
| 4 | * Routines for control of EMU10K1 WaveTable synth | |
| 5 | * | |
| 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. | |
| 10 | * | |
| 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. | |
| 15 | * | |
| 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 | |
| 19 | */ | |
| 20 | ||
| 21 | #include "emu10k1_synth_local.h" | |
| 22 | #include <linux/init.h> | |
| 23 | ||
| 24 | MODULE_AUTHOR("Takashi Iwai"); | |
| 25 | MODULE_DESCRIPTION("Routines for control of EMU10K1 WaveTable synth"); | |
| 26 | MODULE_LICENSE("GPL"); | |
| 27 | ||
| 28 | /* | |
| 29 | * create a new hardware dependent device for Emu10k1 | |
| 30 | */ | |
| eb4698f3 | 31 | static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev) |
| 1da177e4 | 32 | { |
| eb4698f3 TI |
33 | struct snd_emux *emu; |
| 34 | struct snd_emu10k1 *hw; | |
| 35 | struct snd_emu10k1_synth_arg *arg; | |
| 1da177e4 LT |
36 | unsigned long flags; |
| 37 | ||
| 38 | arg = SNDRV_SEQ_DEVICE_ARGPTR(dev); | |
| 39 | if (arg == NULL) | |
| 40 | return -EINVAL; | |
| 41 | ||
| 42 | if (arg->seq_ports <= 0) | |
| 43 | return 0; /* nothing */ | |
| 44 | if (arg->max_voices < 1) | |
| 45 | arg->max_voices = 1; | |
| 46 | else if (arg->max_voices > 64) | |
| 47 | arg->max_voices = 64; | |
| 48 | ||
| 49 | if (snd_emux_new(&emu) < 0) | |
| 50 | return -ENOMEM; | |
| 51 | ||
| 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 */ | |
| 62 | ||
| 63 | if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) { | |
| 64 | snd_emux_free(emu); | |
| 1da177e4 LT |
65 | return -ENOMEM; |
| 66 | } | |
| 67 | ||
| 68 | spin_lock_irqsave(&hw->voice_lock, flags); | |
| 69 | hw->synth = emu; | |
| 70 | hw->get_synth_voice = snd_emu10k1_synth_get_voice; | |
| 71 | spin_unlock_irqrestore(&hw->voice_lock, flags); | |
| 72 | ||
| 73 | dev->driver_data = emu; | |
| 74 | ||
| 75 | return 0; | |
| 76 | } | |
| 77 | ||
| eb4698f3 | 78 | static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev) |
| 1da177e4 | 79 | { |
| eb4698f3 TI |
80 | struct snd_emux *emu; |
| 81 | struct snd_emu10k1 *hw; | |
| 1da177e4 LT |
82 | unsigned long flags; |
| 83 | ||
| 84 | if (dev->driver_data == NULL) | |
| 85 | return 0; /* not registered actually */ | |
| 86 | ||
| 87 | emu = dev->driver_data; | |
| 88 | ||
| 89 | hw = emu->hw; | |
| 90 | spin_lock_irqsave(&hw->voice_lock, flags); | |
| 91 | hw->synth = NULL; | |
| 92 | hw->get_synth_voice = NULL; | |
| 93 | spin_unlock_irqrestore(&hw->voice_lock, flags); | |
| 94 | ||
| 95 | snd_emux_free(emu); | |
| 96 | return 0; | |
| 97 | } | |
| 98 | ||
| 99 | /* | |
| 100 | * INIT part | |
| 101 | */ | |
| 102 | ||
| 103 | static int __init alsa_emu10k1_synth_init(void) | |
| 104 | { | |
| 105 | ||
| eb4698f3 | 106 | static struct snd_seq_dev_ops ops = { |
| 1da177e4 LT |
107 | snd_emu10k1_synth_new_device, |
| 108 | snd_emu10k1_synth_delete_device, | |
| 109 | }; | |
| eb4698f3 TI |
110 | return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops, |
| 111 | sizeof(struct snd_emu10k1_synth_arg)); | |
| 1da177e4 LT |
112 | } |
| 113 | ||
| 114 | static void __exit alsa_emu10k1_synth_exit(void) | |
| 115 | { | |
| 116 | snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH); | |
| 117 | } | |
| 118 | ||
| 119 | module_init(alsa_emu10k1_synth_init) | |
| 120 | module_exit(alsa_emu10k1_synth_exit) |