| 1 | /* |
| 2 | * IWFFFF - AMD InterWave (tm) - Instrument routines |
| 3 | * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <sound/driver.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/sched.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <sound/core.h> |
| 26 | #include <sound/ainstr_iw.h> |
| 27 | #include <sound/initval.h> |
| 28 | #include <asm/uaccess.h> |
| 29 | |
| 30 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| 31 | MODULE_DESCRIPTION("Advanced Linux Sound Architecture IWFFFF support."); |
| 32 | MODULE_LICENSE("GPL"); |
| 33 | |
| 34 | static unsigned int snd_seq_iwffff_size(unsigned int size, unsigned int format) |
| 35 | { |
| 36 | unsigned int result = size; |
| 37 | |
| 38 | if (format & IWFFFF_WAVE_16BIT) |
| 39 | result <<= 1; |
| 40 | if (format & IWFFFF_WAVE_STEREO) |
| 41 | result <<= 1; |
| 42 | return result; |
| 43 | } |
| 44 | |
| 45 | static void snd_seq_iwffff_copy_lfo_from_stream(iwffff_lfo_t *fp, |
| 46 | iwffff_xlfo_t *fx) |
| 47 | { |
| 48 | fp->freq = le16_to_cpu(fx->freq); |
| 49 | fp->depth = le16_to_cpu(fx->depth); |
| 50 | fp->sweep = le16_to_cpu(fx->sweep); |
| 51 | fp->shape = fx->shape; |
| 52 | fp->delay = fx->delay; |
| 53 | } |
| 54 | |
| 55 | static int snd_seq_iwffff_copy_env_from_stream(__u32 req_stype, |
| 56 | iwffff_layer_t *lp, |
| 57 | iwffff_env_t *ep, |
| 58 | iwffff_xenv_t *ex, |
| 59 | char __user **data, |
| 60 | long *len, |
| 61 | unsigned int __nocast gfp_mask) |
| 62 | { |
| 63 | __u32 stype; |
| 64 | iwffff_env_record_t *rp, *rp_last; |
| 65 | iwffff_xenv_record_t rx; |
| 66 | iwffff_env_point_t *pp; |
| 67 | iwffff_xenv_point_t px; |
| 68 | int points_size, idx; |
| 69 | |
| 70 | ep->flags = ex->flags; |
| 71 | ep->mode = ex->mode; |
| 72 | ep->index = ex->index; |
| 73 | rp_last = NULL; |
| 74 | while (1) { |
| 75 | if (*len < (long)sizeof(__u32)) |
| 76 | return -EINVAL; |
| 77 | if (copy_from_user(&stype, *data, sizeof(stype))) |
| 78 | return -EFAULT; |
| 79 | if (stype == IWFFFF_STRU_WAVE) |
| 80 | return 0; |
| 81 | if (req_stype != stype) { |
| 82 | if (stype == IWFFFF_STRU_ENV_RECP || |
| 83 | stype == IWFFFF_STRU_ENV_RECV) |
| 84 | return 0; |
| 85 | } |
| 86 | if (*len < (long)sizeof(rx)) |
| 87 | return -EINVAL; |
| 88 | if (copy_from_user(&rx, *data, sizeof(rx))) |
| 89 | return -EFAULT; |
| 90 | *data += sizeof(rx); |
| 91 | *len -= sizeof(rx); |
| 92 | points_size = (le16_to_cpu(rx.nattack) + le16_to_cpu(rx.nrelease)) * 2 * sizeof(__u16); |
| 93 | if (points_size > *len) |
| 94 | return -EINVAL; |
| 95 | rp = kcalloc(1, sizeof(*rp) + points_size, gfp_mask); |
| 96 | if (rp == NULL) |
| 97 | return -ENOMEM; |
| 98 | rp->nattack = le16_to_cpu(rx.nattack); |
| 99 | rp->nrelease = le16_to_cpu(rx.nrelease); |
| 100 | rp->sustain_offset = le16_to_cpu(rx.sustain_offset); |
| 101 | rp->sustain_rate = le16_to_cpu(rx.sustain_rate); |
| 102 | rp->release_rate = le16_to_cpu(rx.release_rate); |
| 103 | rp->hirange = rx.hirange; |
| 104 | pp = (iwffff_env_point_t *)(rp + 1); |
| 105 | for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) { |
| 106 | if (copy_from_user(&px, *data, sizeof(px))) |
| 107 | return -EFAULT; |
| 108 | *data += sizeof(px); |
| 109 | *len -= sizeof(px); |
| 110 | pp->offset = le16_to_cpu(px.offset); |
| 111 | pp->rate = le16_to_cpu(px.rate); |
| 112 | } |
| 113 | if (ep->record == NULL) { |
| 114 | ep->record = rp; |
| 115 | } else { |
| 116 | rp_last = rp; |
| 117 | } |
| 118 | rp_last = rp; |
| 119 | } |
| 120 | return 0; |
| 121 | } |
| 122 | |
| 123 | static int snd_seq_iwffff_copy_wave_from_stream(snd_iwffff_ops_t *ops, |
| 124 | iwffff_layer_t *lp, |
| 125 | char __user **data, |
| 126 | long *len, |
| 127 | int atomic) |
| 128 | { |
| 129 | iwffff_wave_t *wp, *prev; |
| 130 | iwffff_xwave_t xp; |
| 131 | int err; |
| 132 | unsigned int gfp_mask; |
| 133 | unsigned int real_size; |
| 134 | |
| 135 | gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL; |
| 136 | if (*len < (long)sizeof(xp)) |
| 137 | return -EINVAL; |
| 138 | if (copy_from_user(&xp, *data, sizeof(xp))) |
| 139 | return -EFAULT; |
| 140 | *data += sizeof(xp); |
| 141 | *len -= sizeof(xp); |
| 142 | wp = kcalloc(1, sizeof(*wp), gfp_mask); |
| 143 | if (wp == NULL) |
| 144 | return -ENOMEM; |
| 145 | wp->share_id[0] = le32_to_cpu(xp.share_id[0]); |
| 146 | wp->share_id[1] = le32_to_cpu(xp.share_id[1]); |
| 147 | wp->share_id[2] = le32_to_cpu(xp.share_id[2]); |
| 148 | wp->share_id[3] = le32_to_cpu(xp.share_id[3]); |
| 149 | wp->format = le32_to_cpu(xp.format); |
| 150 | wp->address.memory = le32_to_cpu(xp.offset); |
| 151 | wp->size = le32_to_cpu(xp.size); |
| 152 | wp->start = le32_to_cpu(xp.start); |
| 153 | wp->loop_start = le32_to_cpu(xp.loop_start); |
| 154 | wp->loop_end = le32_to_cpu(xp.loop_end); |
| 155 | wp->loop_repeat = le16_to_cpu(xp.loop_repeat); |
| 156 | wp->sample_ratio = le32_to_cpu(xp.sample_ratio); |
| 157 | wp->attenuation = xp.attenuation; |
| 158 | wp->low_note = xp.low_note; |
| 159 | wp->high_note = xp.high_note; |
| 160 | real_size = snd_seq_iwffff_size(wp->size, wp->format); |
| 161 | if (!(wp->format & IWFFFF_WAVE_ROM)) { |
| 162 | if ((long)real_size > *len) { |
| 163 | kfree(wp); |
| 164 | return -ENOMEM; |
| 165 | } |
| 166 | } |
| 167 | if (ops->put_sample) { |
| 168 | err = ops->put_sample(ops->private_data, wp, |
| 169 | *data, real_size, atomic); |
| 170 | if (err < 0) { |
| 171 | kfree(wp); |
| 172 | return err; |
| 173 | } |
| 174 | } |
| 175 | if (!(wp->format & IWFFFF_WAVE_ROM)) { |
| 176 | *data += real_size; |
| 177 | *len -= real_size; |
| 178 | } |
| 179 | prev = lp->wave; |
| 180 | if (prev) { |
| 181 | while (prev->next) prev = prev->next; |
| 182 | prev->next = wp; |
| 183 | } else { |
| 184 | lp->wave = wp; |
| 185 | } |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | static void snd_seq_iwffff_env_free(snd_iwffff_ops_t *ops, |
| 190 | iwffff_env_t *env, |
| 191 | int atomic) |
| 192 | { |
| 193 | iwffff_env_record_t *rec; |
| 194 | |
| 195 | while ((rec = env->record) != NULL) { |
| 196 | env->record = rec->next; |
| 197 | kfree(rec); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | static void snd_seq_iwffff_wave_free(snd_iwffff_ops_t *ops, |
| 202 | iwffff_wave_t *wave, |
| 203 | int atomic) |
| 204 | { |
| 205 | if (ops->remove_sample) |
| 206 | ops->remove_sample(ops->private_data, wave, atomic); |
| 207 | kfree(wave); |
| 208 | } |
| 209 | |
| 210 | static void snd_seq_iwffff_instr_free(snd_iwffff_ops_t *ops, |
| 211 | iwffff_instrument_t *ip, |
| 212 | int atomic) |
| 213 | { |
| 214 | iwffff_layer_t *layer; |
| 215 | iwffff_wave_t *wave; |
| 216 | |
| 217 | while ((layer = ip->layer) != NULL) { |
| 218 | ip->layer = layer->next; |
| 219 | snd_seq_iwffff_env_free(ops, &layer->penv, atomic); |
| 220 | snd_seq_iwffff_env_free(ops, &layer->venv, atomic); |
| 221 | while ((wave = layer->wave) != NULL) { |
| 222 | layer->wave = wave->next; |
| 223 | snd_seq_iwffff_wave_free(ops, wave, atomic); |
| 224 | } |
| 225 | kfree(layer); |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | static int snd_seq_iwffff_put(void *private_data, snd_seq_kinstr_t *instr, |
| 230 | char __user *instr_data, long len, int atomic, |
| 231 | int cmd) |
| 232 | { |
| 233 | snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data; |
| 234 | iwffff_instrument_t *ip; |
| 235 | iwffff_xinstrument_t ix; |
| 236 | iwffff_layer_t *lp, *prev_lp; |
| 237 | iwffff_xlayer_t lx; |
| 238 | int err; |
| 239 | unsigned int gfp_mask; |
| 240 | |
| 241 | if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE) |
| 242 | return -EINVAL; |
| 243 | gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL; |
| 244 | /* copy instrument data */ |
| 245 | if (len < (long)sizeof(ix)) |
| 246 | return -EINVAL; |
| 247 | if (copy_from_user(&ix, instr_data, sizeof(ix))) |
| 248 | return -EFAULT; |
| 249 | if (ix.stype != IWFFFF_STRU_INSTR) |
| 250 | return -EINVAL; |
| 251 | instr_data += sizeof(ix); |
| 252 | len -= sizeof(ix); |
| 253 | ip = (iwffff_instrument_t *)KINSTR_DATA(instr); |
| 254 | ip->exclusion = le16_to_cpu(ix.exclusion); |
| 255 | ip->layer_type = le16_to_cpu(ix.layer_type); |
| 256 | ip->exclusion_group = le16_to_cpu(ix.exclusion_group); |
| 257 | ip->effect1 = ix.effect1; |
| 258 | ip->effect1_depth = ix.effect1_depth; |
| 259 | ip->effect2 = ix.effect2; |
| 260 | ip->effect2_depth = ix.effect2_depth; |
| 261 | /* copy layers */ |
| 262 | prev_lp = NULL; |
| 263 | while (len > 0) { |
| 264 | if (len < (long)sizeof(iwffff_xlayer_t)) { |
| 265 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 266 | return -EINVAL; |
| 267 | } |
| 268 | if (copy_from_user(&lx, instr_data, sizeof(lx))) |
| 269 | return -EFAULT; |
| 270 | instr_data += sizeof(lx); |
| 271 | len -= sizeof(lx); |
| 272 | if (lx.stype != IWFFFF_STRU_LAYER) { |
| 273 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 274 | return -EINVAL; |
| 275 | } |
| 276 | lp = kcalloc(1, sizeof(*lp), gfp_mask); |
| 277 | if (lp == NULL) { |
| 278 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 279 | return -ENOMEM; |
| 280 | } |
| 281 | if (prev_lp) { |
| 282 | prev_lp->next = lp; |
| 283 | } else { |
| 284 | ip->layer = lp; |
| 285 | } |
| 286 | prev_lp = lp; |
| 287 | lp->flags = lx.flags; |
| 288 | lp->velocity_mode = lx.velocity_mode; |
| 289 | lp->layer_event = lx.layer_event; |
| 290 | lp->low_range = lx.low_range; |
| 291 | lp->high_range = lx.high_range; |
| 292 | lp->pan = lx.pan; |
| 293 | lp->pan_freq_scale = lx.pan_freq_scale; |
| 294 | lp->attenuation = lx.attenuation; |
| 295 | snd_seq_iwffff_copy_lfo_from_stream(&lp->tremolo, &lx.tremolo); |
| 296 | snd_seq_iwffff_copy_lfo_from_stream(&lp->vibrato, &lx.vibrato); |
| 297 | lp->freq_scale = le16_to_cpu(lx.freq_scale); |
| 298 | lp->freq_center = lx.freq_center; |
| 299 | err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECP, |
| 300 | lp, |
| 301 | &lp->penv, &lx.penv, |
| 302 | &instr_data, &len, |
| 303 | gfp_mask); |
| 304 | if (err < 0) { |
| 305 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 306 | return err; |
| 307 | } |
| 308 | err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECV, |
| 309 | lp, |
| 310 | &lp->venv, &lx.venv, |
| 311 | &instr_data, &len, |
| 312 | gfp_mask); |
| 313 | if (err < 0) { |
| 314 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 315 | return err; |
| 316 | } |
| 317 | while (len > (long)sizeof(__u32)) { |
| 318 | __u32 stype; |
| 319 | |
| 320 | if (copy_from_user(&stype, instr_data, sizeof(stype))) |
| 321 | return -EFAULT; |
| 322 | if (stype != IWFFFF_STRU_WAVE) |
| 323 | break; |
| 324 | err = snd_seq_iwffff_copy_wave_from_stream(ops, |
| 325 | lp, |
| 326 | &instr_data, |
| 327 | &len, |
| 328 | atomic); |
| 329 | if (err < 0) { |
| 330 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 331 | return err; |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | static void snd_seq_iwffff_copy_lfo_to_stream(iwffff_xlfo_t *fx, |
| 339 | iwffff_lfo_t *fp) |
| 340 | { |
| 341 | fx->freq = cpu_to_le16(fp->freq); |
| 342 | fx->depth = cpu_to_le16(fp->depth); |
| 343 | fx->sweep = cpu_to_le16(fp->sweep); |
| 344 | fp->shape = fx->shape; |
| 345 | fp->delay = fx->delay; |
| 346 | } |
| 347 | |
| 348 | static int snd_seq_iwffff_copy_env_to_stream(__u32 req_stype, |
| 349 | iwffff_layer_t *lp, |
| 350 | iwffff_xenv_t *ex, |
| 351 | iwffff_env_t *ep, |
| 352 | char __user **data, |
| 353 | long *len) |
| 354 | { |
| 355 | iwffff_env_record_t *rp; |
| 356 | iwffff_xenv_record_t rx; |
| 357 | iwffff_env_point_t *pp; |
| 358 | iwffff_xenv_point_t px; |
| 359 | int points_size, idx; |
| 360 | |
| 361 | ex->flags = ep->flags; |
| 362 | ex->mode = ep->mode; |
| 363 | ex->index = ep->index; |
| 364 | for (rp = ep->record; rp; rp = rp->next) { |
| 365 | if (*len < (long)sizeof(rx)) |
| 366 | return -ENOMEM; |
| 367 | memset(&rx, 0, sizeof(rx)); |
| 368 | rx.stype = req_stype; |
| 369 | rx.nattack = cpu_to_le16(rp->nattack); |
| 370 | rx.nrelease = cpu_to_le16(rp->nrelease); |
| 371 | rx.sustain_offset = cpu_to_le16(rp->sustain_offset); |
| 372 | rx.sustain_rate = cpu_to_le16(rp->sustain_rate); |
| 373 | rx.release_rate = cpu_to_le16(rp->release_rate); |
| 374 | rx.hirange = cpu_to_le16(rp->hirange); |
| 375 | if (copy_to_user(*data, &rx, sizeof(rx))) |
| 376 | return -EFAULT; |
| 377 | *data += sizeof(rx); |
| 378 | *len -= sizeof(rx); |
| 379 | points_size = (rp->nattack + rp->nrelease) * 2 * sizeof(__u16); |
| 380 | if (*len < points_size) |
| 381 | return -ENOMEM; |
| 382 | pp = (iwffff_env_point_t *)(rp + 1); |
| 383 | for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) { |
| 384 | px.offset = cpu_to_le16(pp->offset); |
| 385 | px.rate = cpu_to_le16(pp->rate); |
| 386 | if (copy_to_user(*data, &px, sizeof(px))) |
| 387 | return -EFAULT; |
| 388 | *data += sizeof(px); |
| 389 | *len -= sizeof(px); |
| 390 | } |
| 391 | } |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | static int snd_seq_iwffff_copy_wave_to_stream(snd_iwffff_ops_t *ops, |
| 396 | iwffff_layer_t *lp, |
| 397 | char __user **data, |
| 398 | long *len, |
| 399 | int atomic) |
| 400 | { |
| 401 | iwffff_wave_t *wp; |
| 402 | iwffff_xwave_t xp; |
| 403 | int err; |
| 404 | unsigned int real_size; |
| 405 | |
| 406 | for (wp = lp->wave; wp; wp = wp->next) { |
| 407 | if (*len < (long)sizeof(xp)) |
| 408 | return -ENOMEM; |
| 409 | memset(&xp, 0, sizeof(xp)); |
| 410 | xp.stype = IWFFFF_STRU_WAVE; |
| 411 | xp.share_id[0] = cpu_to_le32(wp->share_id[0]); |
| 412 | xp.share_id[1] = cpu_to_le32(wp->share_id[1]); |
| 413 | xp.share_id[2] = cpu_to_le32(wp->share_id[2]); |
| 414 | xp.share_id[3] = cpu_to_le32(wp->share_id[3]); |
| 415 | xp.format = cpu_to_le32(wp->format); |
| 416 | if (wp->format & IWFFFF_WAVE_ROM) |
| 417 | xp.offset = cpu_to_le32(wp->address.memory); |
| 418 | xp.size = cpu_to_le32(wp->size); |
| 419 | xp.start = cpu_to_le32(wp->start); |
| 420 | xp.loop_start = cpu_to_le32(wp->loop_start); |
| 421 | xp.loop_end = cpu_to_le32(wp->loop_end); |
| 422 | xp.loop_repeat = cpu_to_le32(wp->loop_repeat); |
| 423 | xp.sample_ratio = cpu_to_le32(wp->sample_ratio); |
| 424 | xp.attenuation = wp->attenuation; |
| 425 | xp.low_note = wp->low_note; |
| 426 | xp.high_note = wp->high_note; |
| 427 | if (copy_to_user(*data, &xp, sizeof(xp))) |
| 428 | return -EFAULT; |
| 429 | *data += sizeof(xp); |
| 430 | *len -= sizeof(xp); |
| 431 | real_size = snd_seq_iwffff_size(wp->size, wp->format); |
| 432 | if (!(wp->format & IWFFFF_WAVE_ROM)) { |
| 433 | if (*len < (long)real_size) |
| 434 | return -ENOMEM; |
| 435 | } |
| 436 | if (ops->get_sample) { |
| 437 | err = ops->get_sample(ops->private_data, wp, |
| 438 | *data, real_size, atomic); |
| 439 | if (err < 0) |
| 440 | return err; |
| 441 | } |
| 442 | if (!(wp->format & IWFFFF_WAVE_ROM)) { |
| 443 | *data += real_size; |
| 444 | *len -= real_size; |
| 445 | } |
| 446 | } |
| 447 | return 0; |
| 448 | } |
| 449 | |
| 450 | static int snd_seq_iwffff_get(void *private_data, snd_seq_kinstr_t *instr, |
| 451 | char __user *instr_data, long len, int atomic, int cmd) |
| 452 | { |
| 453 | snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data; |
| 454 | iwffff_instrument_t *ip; |
| 455 | iwffff_xinstrument_t ix; |
| 456 | iwffff_layer_t *lp; |
| 457 | iwffff_xlayer_t lx; |
| 458 | char __user *layer_instr_data; |
| 459 | int err; |
| 460 | |
| 461 | if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL) |
| 462 | return -EINVAL; |
| 463 | if (len < (long)sizeof(ix)) |
| 464 | return -ENOMEM; |
| 465 | memset(&ix, 0, sizeof(ix)); |
| 466 | ip = (iwffff_instrument_t *)KINSTR_DATA(instr); |
| 467 | ix.stype = IWFFFF_STRU_INSTR; |
| 468 | ix.exclusion = cpu_to_le16(ip->exclusion); |
| 469 | ix.layer_type = cpu_to_le16(ip->layer_type); |
| 470 | ix.exclusion_group = cpu_to_le16(ip->exclusion_group); |
| 471 | ix.effect1 = cpu_to_le16(ip->effect1); |
| 472 | ix.effect1_depth = cpu_to_le16(ip->effect1_depth); |
| 473 | ix.effect2 = ip->effect2; |
| 474 | ix.effect2_depth = ip->effect2_depth; |
| 475 | if (copy_to_user(instr_data, &ix, sizeof(ix))) |
| 476 | return -EFAULT; |
| 477 | instr_data += sizeof(ix); |
| 478 | len -= sizeof(ix); |
| 479 | for (lp = ip->layer; lp; lp = lp->next) { |
| 480 | if (len < (long)sizeof(lx)) |
| 481 | return -ENOMEM; |
| 482 | memset(&lx, 0, sizeof(lx)); |
| 483 | lx.stype = IWFFFF_STRU_LAYER; |
| 484 | lx.flags = lp->flags; |
| 485 | lx.velocity_mode = lp->velocity_mode; |
| 486 | lx.layer_event = lp->layer_event; |
| 487 | lx.low_range = lp->low_range; |
| 488 | lx.high_range = lp->high_range; |
| 489 | lx.pan = lp->pan; |
| 490 | lx.pan_freq_scale = lp->pan_freq_scale; |
| 491 | lx.attenuation = lp->attenuation; |
| 492 | snd_seq_iwffff_copy_lfo_to_stream(&lx.tremolo, &lp->tremolo); |
| 493 | snd_seq_iwffff_copy_lfo_to_stream(&lx.vibrato, &lp->vibrato); |
| 494 | layer_instr_data = instr_data; |
| 495 | instr_data += sizeof(lx); |
| 496 | len -= sizeof(lx); |
| 497 | err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECP, |
| 498 | lp, |
| 499 | &lx.penv, &lp->penv, |
| 500 | &instr_data, &len); |
| 501 | if (err < 0) |
| 502 | return err; |
| 503 | err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECV, |
| 504 | lp, |
| 505 | &lx.venv, &lp->venv, |
| 506 | &instr_data, &len); |
| 507 | if (err < 0) |
| 508 | return err; |
| 509 | /* layer structure updating is now finished */ |
| 510 | if (copy_to_user(layer_instr_data, &lx, sizeof(lx))) |
| 511 | return -EFAULT; |
| 512 | err = snd_seq_iwffff_copy_wave_to_stream(ops, |
| 513 | lp, |
| 514 | &instr_data, |
| 515 | &len, |
| 516 | atomic); |
| 517 | if (err < 0) |
| 518 | return err; |
| 519 | } |
| 520 | return 0; |
| 521 | } |
| 522 | |
| 523 | static long snd_seq_iwffff_env_size_in_stream(iwffff_env_t *ep) |
| 524 | { |
| 525 | long result = 0; |
| 526 | iwffff_env_record_t *rp; |
| 527 | |
| 528 | for (rp = ep->record; rp; rp = rp->next) { |
| 529 | result += sizeof(iwffff_xenv_record_t); |
| 530 | result += (rp->nattack + rp->nrelease) * 2 * sizeof(__u16); |
| 531 | } |
| 532 | return 0; |
| 533 | } |
| 534 | |
| 535 | static long snd_seq_iwffff_wave_size_in_stream(iwffff_layer_t *lp) |
| 536 | { |
| 537 | long result = 0; |
| 538 | iwffff_wave_t *wp; |
| 539 | |
| 540 | for (wp = lp->wave; wp; wp = wp->next) { |
| 541 | result += sizeof(iwffff_xwave_t); |
| 542 | if (!(wp->format & IWFFFF_WAVE_ROM)) |
| 543 | result += wp->size; |
| 544 | } |
| 545 | return result; |
| 546 | } |
| 547 | |
| 548 | static int snd_seq_iwffff_get_size(void *private_data, snd_seq_kinstr_t *instr, |
| 549 | long *size) |
| 550 | { |
| 551 | long result; |
| 552 | iwffff_instrument_t *ip; |
| 553 | iwffff_layer_t *lp; |
| 554 | |
| 555 | *size = 0; |
| 556 | ip = (iwffff_instrument_t *)KINSTR_DATA(instr); |
| 557 | result = sizeof(iwffff_xinstrument_t); |
| 558 | for (lp = ip->layer; lp; lp = lp->next) { |
| 559 | result += sizeof(iwffff_xlayer_t); |
| 560 | result += snd_seq_iwffff_env_size_in_stream(&lp->penv); |
| 561 | result += snd_seq_iwffff_env_size_in_stream(&lp->venv); |
| 562 | result += snd_seq_iwffff_wave_size_in_stream(lp); |
| 563 | } |
| 564 | *size = result; |
| 565 | return 0; |
| 566 | } |
| 567 | |
| 568 | static int snd_seq_iwffff_remove(void *private_data, |
| 569 | snd_seq_kinstr_t *instr, |
| 570 | int atomic) |
| 571 | { |
| 572 | snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data; |
| 573 | iwffff_instrument_t *ip; |
| 574 | |
| 575 | ip = (iwffff_instrument_t *)KINSTR_DATA(instr); |
| 576 | snd_seq_iwffff_instr_free(ops, ip, atomic); |
| 577 | return 0; |
| 578 | } |
| 579 | |
| 580 | static void snd_seq_iwffff_notify(void *private_data, |
| 581 | snd_seq_kinstr_t *instr, |
| 582 | int what) |
| 583 | { |
| 584 | snd_iwffff_ops_t *ops = (snd_iwffff_ops_t *)private_data; |
| 585 | |
| 586 | if (ops->notify) |
| 587 | ops->notify(ops->private_data, instr, what); |
| 588 | } |
| 589 | |
| 590 | int snd_seq_iwffff_init(snd_iwffff_ops_t *ops, |
| 591 | void *private_data, |
| 592 | snd_seq_kinstr_ops_t *next) |
| 593 | { |
| 594 | memset(ops, 0, sizeof(*ops)); |
| 595 | ops->private_data = private_data; |
| 596 | ops->kops.private_data = ops; |
| 597 | ops->kops.add_len = sizeof(iwffff_instrument_t); |
| 598 | ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_INTERWAVE; |
| 599 | ops->kops.put = snd_seq_iwffff_put; |
| 600 | ops->kops.get = snd_seq_iwffff_get; |
| 601 | ops->kops.get_size = snd_seq_iwffff_get_size; |
| 602 | ops->kops.remove = snd_seq_iwffff_remove; |
| 603 | ops->kops.notify = snd_seq_iwffff_notify; |
| 604 | ops->kops.next = next; |
| 605 | return 0; |
| 606 | } |
| 607 | |
| 608 | /* |
| 609 | * Init part |
| 610 | */ |
| 611 | |
| 612 | static int __init alsa_ainstr_iw_init(void) |
| 613 | { |
| 614 | return 0; |
| 615 | } |
| 616 | |
| 617 | static void __exit alsa_ainstr_iw_exit(void) |
| 618 | { |
| 619 | } |
| 620 | |
| 621 | module_init(alsa_ainstr_iw_init) |
| 622 | module_exit(alsa_ainstr_iw_exit) |
| 623 | |
| 624 | EXPORT_SYMBOL(snd_seq_iwffff_init); |