1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 32bit -> 64bit ioctl wrapper for PCM API 4 * Copyright (c) by Takashi Iwai <tiwai@suse.de> 5 */ 6 7 /* This file included from pcm_native.c */ 8 9 #include <linux/compat.h> 10 #include <linux/slab.h> 11 12 static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, 13 s32 __user *src) 14 { 15 snd_pcm_sframes_t delay; 16 int err; 17 18 err = snd_pcm_delay(substream, &delay); 19 if (err) 20 return err; 21 if (put_user(delay, src)) 22 return -EFAULT; 23 return 0; 24 } 25 26 static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, 27 u32 __user *src) 28 { 29 snd_pcm_uframes_t frames; 30 int err; 31 32 if (get_user(frames, src)) 33 return -EFAULT; 34 err = snd_pcm_rewind(substream, frames); 35 if (put_user(err, src)) 36 return -EFAULT; 37 return err < 0 ? err : 0; 38 } 39 40 static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, 41 u32 __user *src) 42 { 43 snd_pcm_uframes_t frames; 44 int err; 45 46 if (get_user(frames, src)) 47 return -EFAULT; 48 err = snd_pcm_forward(substream, frames); 49 if (put_user(err, src)) 50 return -EFAULT; 51 return err < 0 ? err : 0; 52 } 53 54 struct snd_pcm_hw_params32 { 55 u32 flags; 56 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ 57 struct snd_mask mres[5]; /* reserved masks */ 58 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 59 struct snd_interval ires[9]; /* reserved intervals */ 60 u32 rmask; 61 u32 cmask; 62 u32 info; 63 u32 msbits; 64 u32 rate_num; 65 u32 rate_den; 66 u32 fifo_size; 67 unsigned char reserved[64]; 68 }; 69 70 struct snd_pcm_sw_params32 { 71 s32 tstamp_mode; 72 u32 period_step; 73 u32 sleep_min; 74 u32 avail_min; 75 u32 xfer_align; 76 u32 start_threshold; 77 u32 stop_threshold; 78 u32 silence_threshold; 79 u32 silence_size; 80 u32 boundary; 81 u32 proto; 82 u32 tstamp_type; 83 unsigned char reserved[56]; 84 }; 85 86 static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, 87 struct snd_pcm_sw_params32 __user *src) 88 { 89 struct snd_pcm_sw_params params; 90 snd_pcm_uframes_t boundary; 91 int err; 92 93 memset(¶ms, 0, sizeof(params)); 94 if (get_user(params.tstamp_mode, &src->tstamp_mode) || 95 get_user(params.period_step, &src->period_step) || 96 get_user(params.sleep_min, &src->sleep_min) || 97 get_user(params.avail_min, &src->avail_min) || 98 get_user(params.xfer_align, &src->xfer_align) || 99 get_user(params.start_threshold, &src->start_threshold) || 100 get_user(params.stop_threshold, &src->stop_threshold) || 101 get_user(params.silence_threshold, &src->silence_threshold) || 102 get_user(params.silence_size, &src->silence_size) || 103 get_user(params.tstamp_type, &src->tstamp_type) || 104 get_user(params.proto, &src->proto)) 105 return -EFAULT; 106 /* 107 * Check silent_size parameter. Since we have 64bit boundary, 108 * silence_size must be compared with the 32bit boundary. 109 */ 110 boundary = recalculate_boundary(substream->runtime); 111 if (boundary && params.silence_size >= boundary) 112 params.silence_size = substream->runtime->boundary; 113 err = snd_pcm_sw_params(substream, ¶ms); 114 if (err < 0) 115 return err; 116 if (boundary && put_user(boundary, &src->boundary)) 117 return -EFAULT; 118 return err; 119 } 120 121 struct snd_pcm_channel_info32 { 122 u32 channel; 123 u32 offset; 124 u32 first; 125 u32 step; 126 }; 127 128 static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, 129 struct snd_pcm_channel_info32 __user *src) 130 { 131 struct snd_pcm_channel_info info; 132 int err; 133 134 if (get_user(info.channel, &src->channel) || 135 get_user(info.offset, &src->offset) || 136 get_user(info.first, &src->first) || 137 get_user(info.step, &src->step)) 138 return -EFAULT; 139 err = snd_pcm_channel_info(substream, &info); 140 if (err < 0) 141 return err; 142 if (put_user(info.channel, &src->channel) || 143 put_user(info.offset, &src->offset) || 144 put_user(info.first, &src->first) || 145 put_user(info.step, &src->step)) 146 return -EFAULT; 147 return err; 148 } 149 150 #ifdef CONFIG_X86_X32_ABI 151 /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ 152 static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, 153 struct snd_pcm_channel_info __user *src); 154 #define snd_pcm_ioctl_channel_info_x32(s, p) \ 155 snd_pcm_channel_info_user(s, p) 156 #endif /* CONFIG_X86_X32_ABI */ 157 158 struct compat_snd_pcm_status64 { 159 snd_pcm_state_t state; 160 u8 rsvd[4]; /* alignment */ 161 s64 trigger_tstamp_sec; 162 s64 trigger_tstamp_nsec; 163 s64 tstamp_sec; 164 s64 tstamp_nsec; 165 u32 appl_ptr; 166 u32 hw_ptr; 167 s32 delay; 168 u32 avail; 169 u32 avail_max; 170 u32 overrange; 171 snd_pcm_state_t suspended_state; 172 u32 audio_tstamp_data; 173 s64 audio_tstamp_sec; 174 s64 audio_tstamp_nsec; 175 s64 driver_tstamp_sec; 176 s64 driver_tstamp_nsec; 177 u32 audio_tstamp_accuracy; 178 unsigned char reserved[52-4*sizeof(s64)]; 179 } __packed; 180 181 static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream, 182 struct compat_snd_pcm_status64 __user *src, 183 bool ext) 184 { 185 struct snd_pcm_status64 status; 186 struct compat_snd_pcm_status64 compat_status64; 187 int err; 188 189 memset(&status, 0, sizeof(status)); 190 memset(&compat_status64, 0, sizeof(compat_status64)); 191 /* 192 * with extension, parameters are read/write, 193 * get audio_tstamp_data from user, 194 * ignore rest of status structure 195 */ 196 if (ext && get_user(status.audio_tstamp_data, 197 (u32 __user *)(&src->audio_tstamp_data))) 198 return -EFAULT; 199 err = snd_pcm_status64(substream, &status); 200 if (err < 0) 201 return err; 202 203 if (clear_user(src, sizeof(*src))) 204 return -EFAULT; 205 206 compat_status64 = (struct compat_snd_pcm_status64) { 207 .state = status.state, 208 .trigger_tstamp_sec = status.trigger_tstamp_sec, 209 .trigger_tstamp_nsec = status.trigger_tstamp_nsec, 210 .tstamp_sec = status.tstamp_sec, 211 .tstamp_nsec = status.tstamp_nsec, 212 .appl_ptr = status.appl_ptr, 213 .hw_ptr = status.hw_ptr, 214 .delay = status.delay, 215 .avail = status.avail, 216 .avail_max = status.avail_max, 217 .overrange = status.overrange, 218 .suspended_state = status.suspended_state, 219 .audio_tstamp_data = status.audio_tstamp_data, 220 .audio_tstamp_sec = status.audio_tstamp_sec, 221 .audio_tstamp_nsec = status.audio_tstamp_nsec, 222 .driver_tstamp_sec = status.audio_tstamp_sec, 223 .driver_tstamp_nsec = status.audio_tstamp_nsec, 224 .audio_tstamp_accuracy = status.audio_tstamp_accuracy, 225 }; 226 227 if (copy_to_user(src, &compat_status64, sizeof(compat_status64))) 228 return -EFAULT; 229 230 return err; 231 } 232 233 /* both for HW_PARAMS and HW_REFINE */ 234 static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, 235 int refine, 236 struct snd_pcm_hw_params32 __user *data32) 237 { 238 struct snd_pcm_runtime *runtime; 239 int err; 240 241 runtime = substream->runtime; 242 if (!runtime) 243 return -ENOTTY; 244 245 struct snd_pcm_hw_params *data __free(kfree) = 246 kmalloc(sizeof(*data), GFP_KERNEL); 247 if (!data) 248 return -ENOMEM; 249 250 /* only fifo_size (RO from userspace) is different, so just copy all */ 251 if (copy_from_user(data, data32, sizeof(*data32))) 252 return -EFAULT; 253 254 if (refine) { 255 err = snd_pcm_hw_refine(substream, data); 256 if (err < 0) 257 return err; 258 err = fixup_unreferenced_params(substream, data); 259 } else { 260 err = snd_pcm_hw_params(substream, data); 261 } 262 if (err < 0) 263 return err; 264 if (copy_to_user(data32, data, sizeof(*data32)) || 265 put_user(data->fifo_size, &data32->fifo_size)) 266 return -EFAULT; 267 268 if (! refine) { 269 unsigned int new_boundary = recalculate_boundary(runtime); 270 if (new_boundary) 271 runtime->boundary = new_boundary; 272 } 273 return err; 274 } 275 276 277 /* 278 */ 279 struct snd_xferi32 { 280 s32 result; 281 u32 buf; 282 u32 frames; 283 }; 284 285 static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, 286 int dir, struct snd_xferi32 __user *data32) 287 { 288 compat_caddr_t buf; 289 u32 frames; 290 int err; 291 292 if (! substream->runtime) 293 return -ENOTTY; 294 if (substream->stream != dir) 295 return -EINVAL; 296 if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) 297 return -EBADFD; 298 299 if (get_user(buf, &data32->buf) || 300 get_user(frames, &data32->frames)) 301 return -EFAULT; 302 303 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 304 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); 305 else 306 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); 307 if (err < 0) 308 return err; 309 /* copy the result */ 310 if (put_user(err, &data32->result)) 311 return -EFAULT; 312 return 0; 313 } 314 315 316 /* snd_xfern needs remapping of bufs */ 317 struct snd_xfern32 { 318 s32 result; 319 u32 bufs; /* this is void **; */ 320 u32 frames; 321 }; 322 323 /* 324 * xfern ioctl nees to copy (up to) 128 pointers on stack. 325 * although we may pass the copied pointers through f_op->ioctl, but the ioctl 326 * handler there expands again the same 128 pointers on stack, so it is better 327 * to handle the function (calling pcm_readv/writev) directly in this handler. 328 */ 329 static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, 330 int dir, struct snd_xfern32 __user *data32) 331 { 332 compat_caddr_t buf; 333 compat_caddr_t __user *bufptr; 334 u32 frames; 335 int err, ch, i; 336 337 if (! substream->runtime) 338 return -ENOTTY; 339 if (substream->stream != dir) 340 return -EINVAL; 341 if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) 342 return -EBADFD; 343 344 ch = substream->runtime->channels; 345 if (ch > 128) 346 return -EINVAL; 347 if (get_user(buf, &data32->bufs) || 348 get_user(frames, &data32->frames)) 349 return -EFAULT; 350 bufptr = compat_ptr(buf); 351 352 void __user **bufs __free(kfree) = 353 kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); 354 if (bufs == NULL) 355 return -ENOMEM; 356 for (i = 0; i < ch; i++) { 357 u32 ptr; 358 if (get_user(ptr, bufptr)) 359 return -EFAULT; 360 bufs[i] = compat_ptr(ptr); 361 bufptr++; 362 } 363 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 364 err = snd_pcm_lib_writev(substream, bufs, frames); 365 else 366 err = snd_pcm_lib_readv(substream, bufs, frames); 367 if (err >= 0) { 368 if (put_user(err, &data32->result)) 369 return -EFAULT; 370 } 371 return err; 372 } 373 374 #ifdef CONFIG_X86_X32_ABI 375 /* X32 ABI has 64bit timespec and 64bit alignment */ 376 struct snd_pcm_mmap_status_x32 { 377 snd_pcm_state_t state; 378 s32 pad1; 379 u32 hw_ptr; 380 u32 pad2; /* alignment */ 381 struct __snd_timespec64 tstamp; 382 snd_pcm_state_t suspended_state; 383 s32 pad3; 384 struct __snd_timespec64 audio_tstamp; 385 } __packed; 386 387 struct snd_pcm_mmap_control_x32 { 388 u32 appl_ptr; 389 u32 avail_min; 390 }; 391 392 struct snd_pcm_sync_ptr_x32 { 393 u32 flags; 394 u32 rsvd; /* alignment */ 395 union { 396 struct snd_pcm_mmap_status_x32 status; 397 unsigned char reserved[64]; 398 } s; 399 union { 400 struct snd_pcm_mmap_control_x32 control; 401 unsigned char reserved[64]; 402 } c; 403 } __packed; 404 405 static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, 406 struct snd_pcm_sync_ptr_x32 __user *src) 407 { 408 struct snd_pcm_runtime *runtime = substream->runtime; 409 volatile struct snd_pcm_mmap_status *status; 410 volatile struct snd_pcm_mmap_control *control; 411 u32 sflags; 412 struct snd_pcm_mmap_control scontrol; 413 struct snd_pcm_mmap_status sstatus; 414 snd_pcm_uframes_t boundary; 415 int err; 416 417 if (snd_BUG_ON(!runtime)) 418 return -EINVAL; 419 420 if (snd_pcm_sync_ptr_get_user(sflags, scontrol, src)) 421 return -EFAULT; 422 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 423 err = snd_pcm_hwsync(substream); 424 if (err < 0) 425 return err; 426 } 427 status = runtime->status; 428 control = runtime->control; 429 boundary = recalculate_boundary(runtime); 430 if (!boundary) 431 boundary = 0x7fffffff; 432 scoped_guard(pcm_stream_lock_irq, substream) { 433 /* FIXME: we should consider the boundary for the sync from app */ 434 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 435 control->appl_ptr = scontrol.appl_ptr; 436 else 437 scontrol.appl_ptr = control->appl_ptr % boundary; 438 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 439 control->avail_min = scontrol.avail_min; 440 else 441 scontrol.avail_min = control->avail_min; 442 sstatus.state = status->state; 443 sstatus.hw_ptr = status->hw_ptr % boundary; 444 sstatus.tstamp = status->tstamp; 445 sstatus.suspended_state = status->suspended_state; 446 sstatus.audio_tstamp = status->audio_tstamp; 447 } 448 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 449 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 450 if (snd_pcm_sync_ptr_put_user(sstatus, scontrol, src)) 451 return -EFAULT; 452 453 return 0; 454 } 455 #endif /* CONFIG_X86_X32_ABI */ 456 457 #ifdef __BIG_ENDIAN 458 typedef char __pad_before_u32[4]; 459 typedef char __pad_after_u32[0]; 460 #else 461 typedef char __pad_before_u32[0]; 462 typedef char __pad_after_u32[4]; 463 #endif 464 465 /* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min 466 * at the wrong offset due to a typo in padding type. 467 * The bug hits only 32bit. 468 * A workaround for incorrect read/write is needed only in 32bit compat mode. 469 */ 470 struct __snd_pcm_mmap_control64_buggy { 471 __pad_before_u32 __pad1; 472 __u32 appl_ptr; 473 __pad_before_u32 __pad2; /* SiC! here is the bug */ 474 __pad_before_u32 __pad3; 475 __u32 avail_min; 476 __pad_after_uframe __pad4; 477 }; 478 479 static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, 480 struct snd_pcm_sync_ptr __user *_sync_ptr) 481 { 482 struct snd_pcm_runtime *runtime = substream->runtime; 483 struct snd_pcm_sync_ptr sync_ptr; 484 struct __snd_pcm_mmap_control64_buggy *sync_cp; 485 volatile struct snd_pcm_mmap_status *status; 486 volatile struct snd_pcm_mmap_control *control; 487 int err; 488 489 memset(&sync_ptr, 0, sizeof(sync_ptr)); 490 sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; 491 if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) 492 return -EFAULT; 493 if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) 494 return -EFAULT; 495 status = runtime->status; 496 control = runtime->control; 497 if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 498 err = snd_pcm_hwsync(substream); 499 if (err < 0) 500 return err; 501 } 502 scoped_guard(pcm_stream_lock_irq, substream) { 503 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { 504 err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); 505 if (err < 0) 506 return err; 507 } else { 508 sync_cp->appl_ptr = control->appl_ptr; 509 } 510 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 511 control->avail_min = sync_cp->avail_min; 512 else 513 sync_cp->avail_min = control->avail_min; 514 sync_ptr.s.status.state = status->state; 515 sync_ptr.s.status.hw_ptr = status->hw_ptr; 516 sync_ptr.s.status.tstamp = status->tstamp; 517 sync_ptr.s.status.suspended_state = status->suspended_state; 518 sync_ptr.s.status.audio_tstamp = status->audio_tstamp; 519 } 520 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) 521 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 522 if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) 523 return -EFAULT; 524 return 0; 525 } 526 527 /* 528 */ 529 enum { 530 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), 531 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), 532 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), 533 SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), 534 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), 535 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), 536 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), 537 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), 538 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), 539 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), 540 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), 541 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), 542 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), 543 SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), 544 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), 545 #ifdef CONFIG_X86_X32_ABI 546 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), 547 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), 548 #endif /* CONFIG_X86_X32_ABI */ 549 }; 550 551 static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) 552 { 553 struct snd_pcm_file *pcm_file; 554 struct snd_pcm_substream *substream; 555 void __user *argp = compat_ptr(arg); 556 557 pcm_file = file->private_data; 558 if (! pcm_file) 559 return -ENOTTY; 560 substream = pcm_file->substream; 561 if (! substream) 562 return -ENOTTY; 563 564 /* 565 * When PCM is used on 32bit mode, we need to disable 566 * mmap of the old PCM status/control records because 567 * of the size incompatibility. 568 */ 569 pcm_file->no_compat_mmap = 1; 570 571 switch (cmd) { 572 case SNDRV_PCM_IOCTL_PVERSION: 573 case SNDRV_PCM_IOCTL_INFO: 574 case SNDRV_PCM_IOCTL_TSTAMP: 575 case SNDRV_PCM_IOCTL_TTSTAMP: 576 case SNDRV_PCM_IOCTL_USER_PVERSION: 577 case SNDRV_PCM_IOCTL_HWSYNC: 578 case SNDRV_PCM_IOCTL_PREPARE: 579 case SNDRV_PCM_IOCTL_RESET: 580 case SNDRV_PCM_IOCTL_START: 581 case SNDRV_PCM_IOCTL_DROP: 582 case SNDRV_PCM_IOCTL_DRAIN: 583 case SNDRV_PCM_IOCTL_PAUSE: 584 case SNDRV_PCM_IOCTL_HW_FREE: 585 case SNDRV_PCM_IOCTL_RESUME: 586 case SNDRV_PCM_IOCTL_XRUN: 587 case SNDRV_PCM_IOCTL_LINK: 588 case SNDRV_PCM_IOCTL_UNLINK: 589 case __SNDRV_PCM_IOCTL_SYNC_PTR32: 590 return snd_pcm_common_ioctl(file, substream, cmd, argp); 591 case __SNDRV_PCM_IOCTL_SYNC_PTR64: 592 #ifdef CONFIG_X86_X32_ABI 593 if (in_x32_syscall()) 594 return snd_pcm_ioctl_sync_ptr_x32(substream, argp); 595 #endif /* CONFIG_X86_X32_ABI */ 596 return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); 597 case SNDRV_PCM_IOCTL_HW_REFINE32: 598 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); 599 case SNDRV_PCM_IOCTL_HW_PARAMS32: 600 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); 601 case SNDRV_PCM_IOCTL_SW_PARAMS32: 602 return snd_pcm_ioctl_sw_params_compat(substream, argp); 603 case SNDRV_PCM_IOCTL_STATUS_COMPAT32: 604 return snd_pcm_status_user32(substream, argp, false); 605 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: 606 return snd_pcm_status_user32(substream, argp, true); 607 case SNDRV_PCM_IOCTL_CHANNEL_INFO32: 608 return snd_pcm_ioctl_channel_info_compat(substream, argp); 609 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: 610 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 611 case SNDRV_PCM_IOCTL_READI_FRAMES32: 612 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 613 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: 614 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 615 case SNDRV_PCM_IOCTL_READN_FRAMES32: 616 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 617 case SNDRV_PCM_IOCTL_DELAY32: 618 return snd_pcm_ioctl_delay_compat(substream, argp); 619 case SNDRV_PCM_IOCTL_REWIND32: 620 return snd_pcm_ioctl_rewind_compat(substream, argp); 621 case SNDRV_PCM_IOCTL_FORWARD32: 622 return snd_pcm_ioctl_forward_compat(substream, argp); 623 case SNDRV_PCM_IOCTL_STATUS_COMPAT64: 624 return snd_pcm_status_user_compat64(substream, argp, false); 625 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: 626 return snd_pcm_status_user_compat64(substream, argp, true); 627 #ifdef CONFIG_X86_X32_ABI 628 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: 629 return snd_pcm_ioctl_channel_info_x32(substream, argp); 630 #endif /* CONFIG_X86_X32_ABI */ 631 } 632 633 return -ENOIOCTLCMD; 634 } 635