Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Interface for OSS sequencer emulation |
| 3 | * |
| 4 | * Copyright (C) 2000 Uros Bizjak <uros@kss-loka.si> |
| 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 "opl3_voice.h" |
| 22 | #include <linux/slab.h> |
| 23 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 24 | static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure); |
| 25 | static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg); |
| 26 | static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg); |
| 27 | static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, const char __user *buf, int offs, int count); |
| 28 | static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| 30 | /* */ |
| 31 | |
| 32 | static inline mm_segment_t snd_enter_user(void) |
| 33 | { |
| 34 | mm_segment_t fs = get_fs(); |
| 35 | set_fs(get_ds()); |
| 36 | return fs; |
| 37 | } |
| 38 | |
| 39 | static inline void snd_leave_user(mm_segment_t fs) |
| 40 | { |
| 41 | set_fs(fs); |
| 42 | } |
| 43 | |
| 44 | /* operators */ |
| 45 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 46 | extern struct snd_midi_op opl3_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 48 | static struct snd_seq_oss_callback oss_callback = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | .owner = THIS_MODULE, |
| 50 | .open = snd_opl3_open_seq_oss, |
| 51 | .close = snd_opl3_close_seq_oss, |
| 52 | .ioctl = snd_opl3_ioctl_seq_oss, |
| 53 | .load_patch = snd_opl3_load_patch_seq_oss, |
| 54 | .reset = snd_opl3_reset_seq_oss, |
| 55 | }; |
| 56 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 57 | static int snd_opl3_oss_event_input(struct snd_seq_event *ev, int direct, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | void *private_data, int atomic, int hop) |
| 59 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 60 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
| 62 | if (ev->type != SNDRV_SEQ_EVENT_OSS) |
| 63 | snd_midi_process_event(&opl3_ops, ev, opl3->oss_chset); |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | /* ------------------------------ */ |
| 68 | |
| 69 | static void snd_opl3_oss_free_port(void *private_data) |
| 70 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 71 | struct snd_opl3 *opl3 = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
| 73 | snd_midi_channel_free_set(opl3->oss_chset); |
| 74 | } |
| 75 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 76 | static int snd_opl3_oss_create_port(struct snd_opl3 * opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 78 | struct snd_seq_port_callback callbacks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | char name[32]; |
| 80 | int voices, opl_ver; |
| 81 | |
| 82 | voices = (opl3->hardware < OPL3_HW_OPL3) ? |
| 83 | MAX_OPL2_VOICES : MAX_OPL3_VOICES; |
| 84 | opl3->oss_chset = snd_midi_channel_alloc_set(voices); |
| 85 | if (opl3->oss_chset == NULL) |
| 86 | return -ENOMEM; |
| 87 | opl3->oss_chset->private_data = opl3; |
| 88 | |
| 89 | memset(&callbacks, 0, sizeof(callbacks)); |
| 90 | callbacks.owner = THIS_MODULE; |
| 91 | callbacks.event_input = snd_opl3_oss_event_input; |
| 92 | callbacks.private_free = snd_opl3_oss_free_port; |
| 93 | callbacks.private_data = opl3; |
| 94 | |
| 95 | opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; |
| 96 | sprintf(name, "OPL%i OSS Port", opl_ver); |
| 97 | |
| 98 | opl3->oss_chset->client = opl3->seq_client; |
| 99 | opl3->oss_chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks, |
| 100 | SNDRV_SEQ_PORT_CAP_WRITE, |
| 101 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | |
Clemens Ladisch | 450047a | 2006-05-02 16:08:41 +0200 | [diff] [blame] | 102 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | |
| 103 | SNDRV_SEQ_PORT_TYPE_HARDWARE | |
| 104 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | voices, voices, |
| 106 | name); |
| 107 | if (opl3->oss_chset->port < 0) { |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 108 | int port; |
| 109 | port = opl3->oss_chset->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | snd_midi_channel_free_set(opl3->oss_chset); |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 111 | return port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | } |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | /* ------------------------------ */ |
| 117 | |
| 118 | /* register OSS synth */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 119 | void snd_opl3_init_seq_oss(struct snd_opl3 *opl3, char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 121 | struct snd_seq_oss_reg *arg; |
| 122 | struct snd_seq_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
| 124 | if (snd_seq_device_new(opl3->card, 0, SNDRV_SEQ_DEV_ID_OSS, |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 125 | sizeof(struct snd_seq_oss_reg), &dev) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | return; |
| 127 | |
| 128 | opl3->oss_seq_dev = dev; |
| 129 | strlcpy(dev->name, name, sizeof(dev->name)); |
| 130 | arg = SNDRV_SEQ_DEVICE_ARGPTR(dev); |
| 131 | arg->type = SYNTH_TYPE_FM; |
| 132 | if (opl3->hardware < OPL3_HW_OPL3) { |
| 133 | arg->subtype = FM_TYPE_ADLIB; |
| 134 | arg->nvoices = MAX_OPL2_VOICES; |
| 135 | } else { |
| 136 | arg->subtype = FM_TYPE_OPL3; |
| 137 | arg->nvoices = MAX_OPL3_VOICES; |
| 138 | } |
| 139 | arg->oper = oss_callback; |
| 140 | arg->private_data = opl3; |
| 141 | |
Dave Jones | 5e315e9 | 2006-03-06 14:03:37 +0100 | [diff] [blame] | 142 | if (snd_opl3_oss_create_port(opl3)) { |
| 143 | /* register to OSS synth table */ |
| 144 | snd_device_register(opl3->card, dev); |
| 145 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | /* unregister */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 149 | void snd_opl3_free_seq_oss(struct snd_opl3 *opl3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | { |
| 151 | if (opl3->oss_seq_dev) { |
Takashi Iwai | b1a3aa2 | 2006-02-24 13:03:52 -0800 | [diff] [blame] | 152 | /* The instance should have been released in prior */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | opl3->oss_seq_dev = NULL; |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | /* ------------------------------ */ |
| 158 | |
| 159 | /* open OSS sequencer */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 160 | static int snd_opl3_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 162 | struct snd_opl3 *opl3 = closure; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | int err; |
| 164 | |
| 165 | snd_assert(arg != NULL, return -ENXIO); |
| 166 | |
| 167 | if ((err = snd_opl3_synth_setup(opl3)) < 0) |
| 168 | return err; |
| 169 | |
| 170 | /* fill the argument data */ |
| 171 | arg->private_data = opl3; |
| 172 | arg->addr.client = opl3->oss_chset->client; |
| 173 | arg->addr.port = opl3->oss_chset->port; |
| 174 | |
| 175 | if ((err = snd_opl3_synth_use_inc(opl3)) < 0) |
| 176 | return err; |
| 177 | |
| 178 | opl3->synth_mode = SNDRV_OPL3_MODE_SYNTH; |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | /* close OSS sequencer */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 183 | static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 185 | struct snd_opl3 *opl3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | |
| 187 | snd_assert(arg != NULL, return -ENXIO); |
| 188 | opl3 = arg->private_data; |
| 189 | |
| 190 | snd_opl3_synth_cleanup(opl3); |
| 191 | |
| 192 | snd_opl3_synth_use_dec(opl3); |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | /* load patch */ |
| 197 | |
| 198 | /* offsets for SBI params */ |
| 199 | #define AM_VIB 0 |
| 200 | #define KSL_LEVEL 2 |
| 201 | #define ATTACK_DECAY 4 |
| 202 | #define SUSTAIN_RELEASE 6 |
| 203 | #define WAVE_SELECT 8 |
| 204 | |
| 205 | /* offset for SBI instrument */ |
| 206 | #define CONNECTION 10 |
| 207 | #define OFFSET_4OP 11 |
| 208 | |
| 209 | /* from sound_config.h */ |
| 210 | #define SBFM_MAXINSTR 256 |
| 211 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 212 | static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | const char __user *buf, int offs, int count) |
| 214 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 215 | struct snd_opl3 *opl3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | int err = -EINVAL; |
| 217 | |
| 218 | snd_assert(arg != NULL, return -ENXIO); |
| 219 | opl3 = arg->private_data; |
| 220 | |
| 221 | if ((format == FM_PATCH) || (format == OPL3_PATCH)) { |
| 222 | struct sbi_instrument sbi; |
| 223 | |
| 224 | size_t size; |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 225 | struct snd_seq_instr_header *put; |
| 226 | struct snd_seq_instr_data *data; |
| 227 | struct fm_xinstrument *xinstr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 229 | struct snd_seq_event ev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | int i; |
| 231 | |
| 232 | mm_segment_t fs; |
| 233 | |
| 234 | if (count < (int)sizeof(sbi)) { |
| 235 | snd_printk("FM Error: Patch record too short\n"); |
| 236 | return -EINVAL; |
| 237 | } |
| 238 | if (copy_from_user(&sbi, buf, sizeof(sbi))) |
| 239 | return -EFAULT; |
| 240 | |
| 241 | if (sbi.channel < 0 || sbi.channel >= SBFM_MAXINSTR) { |
| 242 | snd_printk("FM Error: Invalid instrument number %d\n", sbi.channel); |
| 243 | return -EINVAL; |
| 244 | } |
| 245 | |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 246 | size = sizeof(*put) + sizeof(struct fm_xinstrument); |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 247 | put = kzalloc(size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | if (put == NULL) |
| 249 | return -ENOMEM; |
| 250 | /* build header */ |
| 251 | data = &put->data; |
| 252 | data->type = SNDRV_SEQ_INSTR_ATYPE_DATA; |
| 253 | strcpy(data->data.format, SNDRV_SEQ_INSTR_ID_OPL2_3); |
| 254 | /* build data section */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 255 | xinstr = (struct fm_xinstrument *)(data + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | xinstr->stype = FM_STRU_INSTR; |
| 257 | |
| 258 | for (i = 0; i < 2; i++) { |
| 259 | xinstr->op[i].am_vib = sbi.operators[AM_VIB + i]; |
| 260 | xinstr->op[i].ksl_level = sbi.operators[KSL_LEVEL + i]; |
| 261 | xinstr->op[i].attack_decay = sbi.operators[ATTACK_DECAY + i]; |
| 262 | xinstr->op[i].sustain_release = sbi.operators[SUSTAIN_RELEASE + i]; |
| 263 | xinstr->op[i].wave_select = sbi.operators[WAVE_SELECT + i]; |
| 264 | } |
| 265 | xinstr->feedback_connection[0] = sbi.operators[CONNECTION]; |
| 266 | |
| 267 | if (format == OPL3_PATCH) { |
| 268 | xinstr->type = FM_PATCH_OPL3; |
| 269 | for (i = 0; i < 2; i++) { |
| 270 | xinstr->op[i+2].am_vib = sbi.operators[OFFSET_4OP + AM_VIB + i]; |
| 271 | xinstr->op[i+2].ksl_level = sbi.operators[OFFSET_4OP + KSL_LEVEL + i]; |
| 272 | xinstr->op[i+2].attack_decay = sbi.operators[OFFSET_4OP + ATTACK_DECAY + i]; |
| 273 | xinstr->op[i+2].sustain_release = sbi.operators[OFFSET_4OP + SUSTAIN_RELEASE + i]; |
| 274 | xinstr->op[i+2].wave_select = sbi.operators[OFFSET_4OP + WAVE_SELECT + i]; |
| 275 | } |
| 276 | xinstr->feedback_connection[1] = sbi.operators[OFFSET_4OP + CONNECTION]; |
| 277 | } else { |
| 278 | xinstr->type = FM_PATCH_OPL2; |
| 279 | } |
| 280 | |
| 281 | put->id.instr.std = SNDRV_SEQ_INSTR_TYPE2_OPL2_3; |
| 282 | put->id.instr.bank = 127; |
| 283 | put->id.instr.prg = sbi.channel; |
| 284 | put->cmd = SNDRV_SEQ_INSTR_PUT_CMD_CREATE; |
| 285 | |
| 286 | memset (&ev, 0, sizeof(ev)); |
| 287 | ev.source.client = SNDRV_SEQ_CLIENT_OSS; |
| 288 | ev.dest = arg->addr; |
| 289 | |
| 290 | ev.flags = SNDRV_SEQ_EVENT_LENGTH_VARUSR; |
| 291 | ev.queue = SNDRV_SEQ_QUEUE_DIRECT; |
| 292 | |
| 293 | fs = snd_enter_user(); |
| 294 | __again: |
| 295 | ev.type = SNDRV_SEQ_EVENT_INSTR_PUT; |
| 296 | ev.data.ext.len = size; |
| 297 | ev.data.ext.ptr = put; |
| 298 | |
| 299 | err = snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, &ev, |
| 300 | opl3->seq_client, 0, 0); |
| 301 | if (err == -EBUSY) { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 302 | struct snd_seq_instr_header remove; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | |
| 304 | memset (&remove, 0, sizeof(remove)); |
| 305 | remove.cmd = SNDRV_SEQ_INSTR_FREE_CMD_SINGLE; |
| 306 | remove.id.instr = put->id.instr; |
| 307 | |
| 308 | /* remove instrument */ |
| 309 | ev.type = SNDRV_SEQ_EVENT_INSTR_FREE; |
| 310 | ev.data.ext.len = sizeof(remove); |
| 311 | ev.data.ext.ptr = &remove; |
| 312 | |
| 313 | snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, &ev, |
| 314 | opl3->seq_client, 0, 0); |
| 315 | goto __again; |
| 316 | } |
| 317 | snd_leave_user(fs); |
| 318 | |
| 319 | kfree(put); |
| 320 | } |
| 321 | return err; |
| 322 | } |
| 323 | |
| 324 | /* ioctl */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 325 | static int snd_opl3_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | unsigned long ioarg) |
| 327 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 328 | struct snd_opl3 *opl3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | snd_assert(arg != NULL, return -ENXIO); |
| 331 | opl3 = arg->private_data; |
| 332 | switch (cmd) { |
| 333 | case SNDCTL_FM_LOAD_INSTR: |
| 334 | snd_printk("OPL3: Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. Fix the program.\n"); |
| 335 | return -EINVAL; |
| 336 | |
| 337 | case SNDCTL_SYNTH_MEMAVL: |
| 338 | return 0x7fffffff; |
| 339 | |
| 340 | case SNDCTL_FM_4OP_ENABLE: |
| 341 | // handled automatically by OPL instrument type |
| 342 | return 0; |
| 343 | |
| 344 | default: |
| 345 | return -EINVAL; |
| 346 | } |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | /* reset device */ |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 351 | static int snd_opl3_reset_seq_oss(struct snd_seq_oss_arg *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
Takashi Iwai | 5b1646a | 2005-11-17 14:13:14 +0100 | [diff] [blame] | 353 | struct snd_opl3 *opl3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | |
| 355 | snd_assert(arg != NULL, return -ENXIO); |
| 356 | opl3 = arg->private_data; |
| 357 | |
| 358 | return 0; |
| 359 | } |