| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| 3 | * and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk> |
| 4 | * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 6 | * Emu8000 synth plug-in routine |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | */ |
| 22 | |
| 23 | #include "emu8000_local.h" |
| 24 | #include <linux/init.h> |
| 25 | #include <sound/initval.h> |
| 26 | |
| 27 | MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe"); |
| 28 | MODULE_DESCRIPTION("Emu8000 synth plug-in routine"); |
| 29 | MODULE_LICENSE("GPL"); |
| 30 | |
| 31 | /*----------------------------------------------------------------*/ |
| 32 | |
| 33 | /* |
| 34 | * create a new hardware dependent device for Emu8000 |
| 35 | */ |
| 36 | static int snd_emu8000_new_device(snd_seq_device_t *dev) |
| 37 | { |
| 38 | emu8000_t *hw; |
| 39 | snd_emux_t *emu; |
| 40 | |
| 41 | hw = *(emu8000_t**)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
| 42 | if (hw == NULL) |
| 43 | return -EINVAL; |
| 44 | |
| 45 | if (hw->emu) |
| 46 | return -EBUSY; /* already exists..? */ |
| 47 | |
| 48 | if (snd_emux_new(&emu) < 0) |
| 49 | return -ENOMEM; |
| 50 | |
| 51 | hw->emu = emu; |
| 52 | snd_emu8000_ops_setup(hw); |
| 53 | |
| 54 | emu->hw = hw; |
| 55 | emu->max_voices = EMU8000_DRAM_VOICES; |
| 56 | emu->num_ports = hw->seq_ports; |
| 57 | |
| 58 | if (hw->memhdr) { |
| 59 | snd_printk("memhdr is already initialized!?\n"); |
| 60 | snd_util_memhdr_free(hw->memhdr); |
| 61 | } |
| 62 | hw->memhdr = snd_util_memhdr_new(hw->mem_size); |
| 63 | if (hw->memhdr == NULL) { |
| 64 | snd_emux_free(emu); |
| 65 | hw->emu = NULL; |
| 66 | return -ENOMEM; |
| 67 | } |
| 68 | |
| 69 | emu->memhdr = hw->memhdr; |
| 70 | emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */ |
| 71 | emu->midi_devidx = 1; |
| 72 | emu->linear_panning = 1; |
| 73 | emu->hwdep_idx = 2; /* FIXED */ |
| 74 | |
| 75 | if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) { |
| 76 | snd_emux_free(emu); |
| 77 | snd_util_memhdr_free(hw->memhdr); |
| 78 | hw->emu = NULL; |
| 79 | hw->memhdr = NULL; |
| 80 | return -ENOMEM; |
| 81 | } |
| 82 | |
| 83 | if (hw->mem_size > 0) |
| 84 | snd_emu8000_pcm_new(dev->card, hw, 1); |
| 85 | |
| 86 | dev->driver_data = hw; |
| 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | |
| 92 | /* |
| 93 | * free all resources |
| 94 | */ |
| 95 | static int snd_emu8000_delete_device(snd_seq_device_t *dev) |
| 96 | { |
| 97 | emu8000_t *hw; |
| 98 | |
| 99 | if (dev->driver_data == NULL) |
| 100 | return 0; /* no synth was allocated actually */ |
| 101 | |
| 102 | hw = dev->driver_data; |
| 103 | if (hw->pcm) |
| 104 | snd_device_free(dev->card, hw->pcm); |
| 105 | if (hw->emu) |
| 106 | snd_emux_free(hw->emu); |
| 107 | if (hw->memhdr) |
| 108 | snd_util_memhdr_free(hw->memhdr); |
| 109 | hw->emu = NULL; |
| 110 | hw->memhdr = NULL; |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | /* |
| 115 | * INIT part |
| 116 | */ |
| 117 | |
| 118 | static int __init alsa_emu8000_init(void) |
| 119 | { |
| 120 | |
| 121 | static snd_seq_dev_ops_t ops = { |
| 122 | snd_emu8000_new_device, |
| 123 | snd_emu8000_delete_device, |
| 124 | }; |
| 125 | return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops, sizeof(emu8000_t*)); |
| 126 | } |
| 127 | |
| 128 | static void __exit alsa_emu8000_exit(void) |
| 129 | { |
| 130 | snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU8000); |
| 131 | } |
| 132 | |
| 133 | module_init(alsa_emu8000_init) |
| 134 | module_exit(alsa_emu8000_exit) |