1 /* 2 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/module.h> 26 #include <sound/initval.h> 27 28 MODULE_AUTHOR("Takashi Iwai, Steve Ratcliffe"); 29 MODULE_DESCRIPTION("Emu8000 synth plug-in routine"); 30 MODULE_LICENSE("GPL"); 31 32 /*----------------------------------------------------------------*/ 33 34 /* 35 * create a new hardware dependent device for Emu8000 36 */ 37 static int snd_emu8000_probe(struct device *_dev) 38 { 39 struct snd_seq_device *dev = to_seq_dev(_dev); 40 struct snd_emu8000 *hw; 41 struct snd_emux *emu; 42 43 hw = *(struct snd_emu8000**)SNDRV_SEQ_DEVICE_ARGPTR(dev); 44 if (hw == NULL) 45 return -EINVAL; 46 47 if (hw->emu) 48 return -EBUSY; /* already exists..? */ 49 50 if (snd_emux_new(&emu) < 0) 51 return -ENOMEM; 52 53 hw->emu = emu; 54 snd_emu8000_ops_setup(hw); 55 56 emu->hw = hw; 57 emu->max_voices = EMU8000_DRAM_VOICES; 58 emu->num_ports = hw->seq_ports; 59 60 if (hw->memhdr) { 61 snd_printk(KERN_ERR "memhdr is already initialized!?\n"); 62 snd_util_memhdr_free(hw->memhdr); 63 } 64 hw->memhdr = snd_util_memhdr_new(hw->mem_size); 65 if (hw->memhdr == NULL) { 66 snd_emux_free(emu); 67 hw->emu = NULL; 68 return -ENOMEM; 69 } 70 71 emu->memhdr = hw->memhdr; 72 emu->midi_ports = hw->seq_ports < 2 ? hw->seq_ports : 2; /* number of virmidi ports */ 73 emu->midi_devidx = 1; 74 emu->linear_panning = 1; 75 emu->hwdep_idx = 2; /* FIXED */ 76 77 if (snd_emux_register(emu, dev->card, hw->index, "Emu8000") < 0) { 78 snd_emux_free(emu); 79 snd_util_memhdr_free(hw->memhdr); 80 hw->emu = NULL; 81 hw->memhdr = NULL; 82 return -ENOMEM; 83 } 84 85 if (hw->mem_size > 0) 86 snd_emu8000_pcm_new(dev->card, hw, 1); 87 88 dev->driver_data = hw; 89 90 return 0; 91 } 92 93 94 /* 95 * free all resources 96 */ 97 static int snd_emu8000_remove(struct device *_dev) 98 { 99 struct snd_seq_device *dev = to_seq_dev(_dev); 100 struct snd_emu8000 *hw; 101 102 if (dev->driver_data == NULL) 103 return 0; /* no synth was allocated actually */ 104 105 hw = dev->driver_data; 106 if (hw->pcm) 107 snd_device_free(dev->card, hw->pcm); 108 snd_emux_free(hw->emu); 109 snd_util_memhdr_free(hw->memhdr); 110 hw->emu = NULL; 111 hw->memhdr = NULL; 112 return 0; 113 } 114 115 /* 116 * INIT part 117 */ 118 119 static struct snd_seq_driver emu8000_driver = { 120 .driver = { 121 .name = KBUILD_MODNAME, 122 .probe = snd_emu8000_probe, 123 .remove = snd_emu8000_remove, 124 }, 125 .id = SNDRV_SEQ_DEV_ID_EMU8000, 126 .argsize = sizeof(struct snd_emu8000 *), 127 }; 128 129 module_snd_seq_driver(emu8000_driver); 130