Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) by Uros Bizjak <uros@kss-loka.si> |
| 3 | * |
| 4 | * Midi Sequencer interface routines for OPL2/OPL3/OPL4 FM |
| 5 | * |
| 6 | * OPL2/3 FM instrument loader: |
| 7 | * alsa-tools/seq/sbiload/ |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include "opl3_voice.h" |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <sound/initval.h> |
| 29 | |
| 30 | MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>"); |
| 31 | MODULE_LICENSE("GPL"); |
| 32 | MODULE_DESCRIPTION("ALSA driver for OPL3 FM synth"); |
| 33 | |
| 34 | int use_internal_drums = 0; |
| 35 | module_param(use_internal_drums, bool, 0444); |
| 36 | MODULE_PARM_DESC(use_internal_drums, "Enable internal OPL2/3 drums."); |
| 37 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 38 | int snd_opl3_synth_use_inc(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | { |
| 40 | if (!try_module_get(opl3->card->module)) |
| 41 | return -EFAULT; |
| 42 | return 0; |
| 43 | |
| 44 | } |
| 45 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 46 | void snd_opl3_synth_use_dec(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | { |
| 48 | module_put(opl3->card->module); |
| 49 | } |
| 50 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 51 | int snd_opl3_synth_setup(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | { |
| 53 | int idx; |
Takashi Iwai | 05c1afe | 2007-10-30 11:59:15 +0100 | [diff] [blame] | 54 | struct snd_hwdep *hwdep = opl3->hwdep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
Takashi Iwai | 05c1afe | 2007-10-30 11:59:15 +0100 | [diff] [blame] | 56 | mutex_lock(&hwdep->open_mutex); |
| 57 | if (hwdep->used) { |
| 58 | mutex_unlock(&hwdep->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | return -EBUSY; |
| 60 | } |
Takashi Iwai | 05c1afe | 2007-10-30 11:59:15 +0100 | [diff] [blame] | 61 | hwdep->used++; |
| 62 | mutex_unlock(&hwdep->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
| 64 | snd_opl3_reset(opl3); |
| 65 | |
| 66 | for (idx = 0; idx < MAX_OPL3_VOICES; idx++) { |
| 67 | opl3->voices[idx].state = SNDRV_OPL3_ST_OFF; |
| 68 | opl3->voices[idx].time = 0; |
| 69 | opl3->voices[idx].keyon_reg = 0x00; |
| 70 | } |
| 71 | opl3->use_time = 0; |
| 72 | opl3->connection_reg = 0x00; |
| 73 | if (opl3->hardware >= OPL3_HW_OPL3) { |
| 74 | /* Clear 4-op connections */ |
| 75 | opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, |
| 76 | opl3->connection_reg); |
| 77 | opl3->max_voices = MAX_OPL3_VOICES; |
| 78 | } |
| 79 | return 0; |
| 80 | } |
| 81 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 82 | void snd_opl3_synth_cleanup(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | { |
| 84 | unsigned long flags; |
Takashi Iwai | 0457652 | 2007-10-30 12:43:40 +0100 | [diff] [blame^] | 85 | struct snd_hwdep *hwdep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | /* Stop system timer */ |
| 88 | spin_lock_irqsave(&opl3->sys_timer_lock, flags); |
| 89 | if (opl3->sys_timer_status) { |
| 90 | del_timer(&opl3->tlist); |
| 91 | opl3->sys_timer_status = 0; |
| 92 | } |
| 93 | spin_unlock_irqrestore(&opl3->sys_timer_lock, flags); |
| 94 | |
| 95 | snd_opl3_reset(opl3); |
Takashi Iwai | 05c1afe | 2007-10-30 11:59:15 +0100 | [diff] [blame] | 96 | hwdep = opl3->hwdep; |
| 97 | mutex_lock(&hwdep->open_mutex); |
| 98 | hwdep->used--; |
| 99 | mutex_unlock(&hwdep->open_mutex); |
| 100 | wake_up(&hwdep->open_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | } |
| 102 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 103 | static int snd_opl3_synth_use(void *private_data, struct snd_seq_port_subscribe * info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 105 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | int err; |
| 107 | |
| 108 | if ((err = snd_opl3_synth_setup(opl3)) < 0) |
| 109 | return err; |
| 110 | |
| 111 | if (use_internal_drums) { |
| 112 | /* Percussion mode */ |
| 113 | opl3->voices[6].state = opl3->voices[7].state = |
| 114 | opl3->voices[8].state = SNDRV_OPL3_ST_NOT_AVAIL; |
| 115 | snd_opl3_load_drums(opl3); |
| 116 | opl3->drum_reg = OPL3_PERCUSSION_ENABLE; |
| 117 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, opl3->drum_reg); |
| 118 | } else { |
| 119 | opl3->drum_reg = 0x00; |
| 120 | } |
| 121 | |
| 122 | if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) { |
| 123 | if ((err = snd_opl3_synth_use_inc(opl3)) < 0) |
| 124 | return err; |
| 125 | } |
| 126 | opl3->synth_mode = SNDRV_OPL3_MODE_SEQ; |
| 127 | return 0; |
| 128 | } |
| 129 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 130 | static int snd_opl3_synth_unuse(void *private_data, struct snd_seq_port_subscribe * info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 132 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | snd_opl3_synth_cleanup(opl3); |
| 135 | |
| 136 | if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) |
| 137 | snd_opl3_synth_use_dec(opl3); |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | /* |
| 142 | * MIDI emulation operators |
| 143 | */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 144 | struct snd_midi_op opl3_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | .note_on = snd_opl3_note_on, |
| 146 | .note_off = snd_opl3_note_off, |
| 147 | .key_press = snd_opl3_key_press, |
| 148 | .note_terminate = snd_opl3_terminate_note, |
| 149 | .control = snd_opl3_control, |
| 150 | .nrpn = snd_opl3_nrpn, |
| 151 | .sysex = snd_opl3_sysex, |
| 152 | }; |
| 153 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 154 | static int snd_opl3_synth_event_input(struct snd_seq_event * ev, int direct, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | void *private_data, int atomic, int hop) |
| 156 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 157 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
Takashi Iwai | 224a033 | 2007-10-30 11:49:22 +0100 | [diff] [blame] | 159 | snd_midi_process_event(&opl3_ops, ev, opl3->chset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | /* ------------------------------ */ |
| 164 | |
| 165 | static void snd_opl3_synth_free_port(void *private_data) |
| 166 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 167 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | |
| 169 | snd_midi_channel_free_set(opl3->chset); |
| 170 | } |
| 171 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 172 | static int snd_opl3_synth_create_port(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 174 | struct snd_seq_port_callback callbacks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | char name[32]; |
| 176 | int voices, opl_ver; |
| 177 | |
| 178 | voices = (opl3->hardware < OPL3_HW_OPL3) ? |
| 179 | MAX_OPL2_VOICES : MAX_OPL3_VOICES; |
| 180 | opl3->chset = snd_midi_channel_alloc_set(16); |
| 181 | if (opl3->chset == NULL) |
| 182 | return -ENOMEM; |
| 183 | opl3->chset->private_data = opl3; |
| 184 | |
| 185 | memset(&callbacks, 0, sizeof(callbacks)); |
| 186 | callbacks.owner = THIS_MODULE; |
| 187 | callbacks.use = snd_opl3_synth_use; |
| 188 | callbacks.unuse = snd_opl3_synth_unuse; |
| 189 | callbacks.event_input = snd_opl3_synth_event_input; |
| 190 | callbacks.private_free = snd_opl3_synth_free_port; |
| 191 | callbacks.private_data = opl3; |
| 192 | |
| 193 | opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; |
| 194 | sprintf(name, "OPL%i FM Port", opl_ver); |
| 195 | |
| 196 | opl3->chset->client = opl3->seq_client; |
| 197 | opl3->chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks, |
| 198 | SNDRV_SEQ_PORT_CAP_WRITE | |
| 199 | SNDRV_SEQ_PORT_CAP_SUBS_WRITE, |
| 200 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | |
| 201 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | |
Clemens Ladisch | 450047a | 2006-05-02 16:08:41 +0200 | [diff] [blame] | 202 | SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE | |
| 203 | SNDRV_SEQ_PORT_TYPE_HARDWARE | |
| 204 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | 16, voices, |
| 206 | name); |
| 207 | if (opl3->chset->port < 0) { |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 208 | int port; |
| 209 | port = opl3->chset->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | snd_midi_channel_free_set(opl3->chset); |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 211 | return port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | } |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | /* ------------------------------ */ |
| 217 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 218 | static int snd_opl3_seq_new_device(struct snd_seq_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 220 | struct snd_opl3 *opl3; |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 221 | int client, err; |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 222 | char name[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | int opl_ver; |
| 224 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 225 | opl3 = *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | if (opl3 == NULL) |
| 227 | return -EINVAL; |
| 228 | |
| 229 | spin_lock_init(&opl3->voice_lock); |
| 230 | |
| 231 | opl3->seq_client = -1; |
| 232 | |
| 233 | /* allocate new client */ |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 234 | opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; |
| 235 | sprintf(name, "OPL%i FM synth", opl_ver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | client = opl3->seq_client = |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 237 | snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num, |
| 238 | name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | if (client < 0) |
| 240 | return client; |
| 241 | |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 242 | if ((err = snd_opl3_synth_create_port(opl3)) < 0) { |
| 243 | snd_seq_delete_kernel_client(client); |
| 244 | opl3->seq_client = -1; |
| 245 | return err; |
| 246 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | /* setup system timer */ |
| 249 | init_timer(&opl3->tlist); |
| 250 | opl3->tlist.function = snd_opl3_timer_func; |
| 251 | opl3->tlist.data = (unsigned long) opl3; |
| 252 | spin_lock_init(&opl3->sys_timer_lock); |
| 253 | opl3->sys_timer_status = 0; |
| 254 | |
| 255 | #ifdef CONFIG_SND_SEQUENCER_OSS |
Clemens Ladisch | 7b6d924 | 2005-12-12 09:33:37 +0100 | [diff] [blame] | 256 | snd_opl3_init_seq_oss(opl3, name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | #endif |
| 258 | return 0; |
| 259 | } |
| 260 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 261 | static int snd_opl3_seq_delete_device(struct snd_seq_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 263 | struct snd_opl3 *opl3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 265 | opl3 = *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | if (opl3 == NULL) |
| 267 | return -EINVAL; |
| 268 | |
| 269 | #ifdef CONFIG_SND_SEQUENCER_OSS |
| 270 | snd_opl3_free_seq_oss(opl3); |
| 271 | #endif |
| 272 | if (opl3->seq_client >= 0) { |
| 273 | snd_seq_delete_kernel_client(opl3->seq_client); |
| 274 | opl3->seq_client = -1; |
| 275 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | static int __init alsa_opl3_seq_init(void) |
| 280 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 281 | static struct snd_seq_dev_ops ops = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | { |
| 283 | snd_opl3_seq_new_device, |
| 284 | snd_opl3_seq_delete_device |
| 285 | }; |
| 286 | |
| 287 | return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops, |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 288 | sizeof(struct snd_opl3 *)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | static void __exit alsa_opl3_seq_exit(void) |
| 292 | { |
| 293 | snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL3); |
| 294 | } |
| 295 | |
| 296 | module_init(alsa_opl3_seq_init) |
| 297 | module_exit(alsa_opl3_seq_exit) |