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_hw_params *data __free(kfree) = NULL; 239 struct snd_pcm_runtime *runtime; 240 int err; 241 242 runtime = substream->runtime; 243 if (!runtime) 244 return -ENOTTY; 245 246 data = 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 void __user **bufs __free(kfree) = NULL; 336 int err, ch, i; 337 338 if (! substream->runtime) 339 return -ENOTTY; 340 if (substream->stream != dir) 341 return -EINVAL; 342 if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) 343 return -EBADFD; 344 345 ch = substream->runtime->channels; 346 if (ch > 128) 347 return -EINVAL; 348 if (get_user(buf, &data32->bufs) || 349 get_user(frames, &data32->frames)) 350 return -EFAULT; 351 bufptr = compat_ptr(buf); 352 bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); 353 if (bufs == NULL) 354 return -ENOMEM; 355 for (i = 0; i < ch; i++) { 356 u32 ptr; 357 if (get_user(ptr, bufptr)) 358 return -EFAULT; 359 bufs[i] = compat_ptr(ptr); 360 bufptr++; 361 } 362 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 363 err = snd_pcm_lib_writev(substream, bufs, frames); 364 else 365 err = snd_pcm_lib_readv(substream, bufs, frames); 366 if (err >= 0) { 367 if (put_user(err, &data32->result)) 368 return -EFAULT; 369 } 370 return err; 371 } 372 373 #ifdef CONFIG_X86_X32_ABI 374 /* X32 ABI has 64bit timespec and 64bit alignment */ 375 struct snd_pcm_mmap_status_x32 { 376 snd_pcm_state_t state; 377 s32 pad1; 378 u32 hw_ptr; 379 u32 pad2; /* alignment */ 380 struct __snd_timespec64 tstamp; 381 snd_pcm_state_t suspended_state; 382 s32 pad3; 383 struct __snd_timespec64 audio_tstamp; 384 } __packed; 385 386 struct snd_pcm_mmap_control_x32 { 387 u32 appl_ptr; 388 u32 avail_min; 389 }; 390 391 struct snd_pcm_sync_ptr_x32 { 392 u32 flags; 393 u32 rsvd; /* alignment */ 394 union { 395 struct snd_pcm_mmap_status_x32 status; 396 unsigned char reserved[64]; 397 } s; 398 union { 399 struct snd_pcm_mmap_control_x32 control; 400 unsigned char reserved[64]; 401 } c; 402 } __packed; 403 404 static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, 405 struct snd_pcm_sync_ptr_x32 __user *src) 406 { 407 struct snd_pcm_runtime *runtime = substream->runtime; 408 volatile struct snd_pcm_mmap_status *status; 409 volatile struct snd_pcm_mmap_control *control; 410 u32 sflags; 411 struct snd_pcm_mmap_control scontrol; 412 struct snd_pcm_mmap_status sstatus; 413 snd_pcm_uframes_t boundary; 414 int err; 415 416 if (snd_BUG_ON(!runtime)) 417 return -EINVAL; 418 419 if (snd_pcm_sync_ptr_get_user(sflags, scontrol, src)) 420 return -EFAULT; 421 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 422 err = snd_pcm_hwsync(substream); 423 if (err < 0) 424 return err; 425 } 426 status = runtime->status; 427 control = runtime->control; 428 boundary = recalculate_boundary(runtime); 429 if (!boundary) 430 boundary = 0x7fffffff; 431 scoped_guard(pcm_stream_lock_irq, substream) { 432 /* FIXME: we should consider the boundary for the sync from app */ 433 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 434 control->appl_ptr = scontrol.appl_ptr; 435 else 436 scontrol.appl_ptr = control->appl_ptr % boundary; 437 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 438 control->avail_min = scontrol.avail_min; 439 else 440 scontrol.avail_min = control->avail_min; 441 sstatus.state = status->state; 442 sstatus.hw_ptr = status->hw_ptr % boundary; 443 sstatus.tstamp = status->tstamp; 444 sstatus.suspended_state = status->suspended_state; 445 sstatus.audio_tstamp = status->audio_tstamp; 446 } 447 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 448 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 449 if (snd_pcm_sync_ptr_put_user(sstatus, scontrol, src)) 450 return -EFAULT; 451 452 return 0; 453 } 454 #endif /* CONFIG_X86_X32_ABI */ 455 456 #ifdef __BIG_ENDIAN 457 typedef char __pad_before_u32[4]; 458 typedef char __pad_after_u32[0]; 459 #else 460 typedef char __pad_before_u32[0]; 461 typedef char __pad_after_u32[4]; 462 #endif 463 464 /* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min 465 * at the wrong offset due to a typo in padding type. 466 * The bug hits only 32bit. 467 * A workaround for incorrect read/write is needed only in 32bit compat mode. 468 */ 469 struct __snd_pcm_mmap_control64_buggy { 470 __pad_before_u32 __pad1; 471 __u32 appl_ptr; 472 __pad_before_u32 __pad2; /* SiC! here is the bug */ 473 __pad_before_u32 __pad3; 474 __u32 avail_min; 475 __pad_after_uframe __pad4; 476 }; 477 478 static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, 479 struct snd_pcm_sync_ptr __user *_sync_ptr) 480 { 481 struct snd_pcm_runtime *runtime = substream->runtime; 482 struct snd_pcm_sync_ptr sync_ptr; 483 struct __snd_pcm_mmap_control64_buggy *sync_cp; 484 volatile struct snd_pcm_mmap_status *status; 485 volatile struct snd_pcm_mmap_control *control; 486 int err; 487 488 memset(&sync_ptr, 0, sizeof(sync_ptr)); 489 sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; 490 if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) 491 return -EFAULT; 492 if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) 493 return -EFAULT; 494 status = runtime->status; 495 control = runtime->control; 496 if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 497 err = snd_pcm_hwsync(substream); 498 if (err < 0) 499 return err; 500 } 501 scoped_guard(pcm_stream_lock_irq, substream) { 502 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { 503 err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); 504 if (err < 0) 505 return err; 506 } else { 507 sync_cp->appl_ptr = control->appl_ptr; 508 } 509 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 510 control->avail_min = sync_cp->avail_min; 511 else 512 sync_cp->avail_min = control->avail_min; 513 sync_ptr.s.status.state = status->state; 514 sync_ptr.s.status.hw_ptr = status->hw_ptr; 515 sync_ptr.s.status.tstamp = status->tstamp; 516 sync_ptr.s.status.suspended_state = status->suspended_state; 517 sync_ptr.s.status.audio_tstamp = status->audio_tstamp; 518 } 519 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) 520 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 521 if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) 522 return -EFAULT; 523 return 0; 524 } 525 526 /* 527 */ 528 enum { 529 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), 530 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), 531 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), 532 SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), 533 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), 534 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), 535 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), 536 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), 537 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), 538 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), 539 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), 540 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), 541 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), 542 SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), 543 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), 544 #ifdef CONFIG_X86_X32_ABI 545 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), 546 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), 547 #endif /* CONFIG_X86_X32_ABI */ 548 }; 549 550 static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) 551 { 552 struct snd_pcm_file *pcm_file; 553 struct snd_pcm_substream *substream; 554 void __user *argp = compat_ptr(arg); 555 556 pcm_file = file->private_data; 557 if (! pcm_file) 558 return -ENOTTY; 559 substream = pcm_file->substream; 560 if (! substream) 561 return -ENOTTY; 562 563 /* 564 * When PCM is used on 32bit mode, we need to disable 565 * mmap of the old PCM status/control records because 566 * of the size incompatibility. 567 */ 568 pcm_file->no_compat_mmap = 1; 569 570 switch (cmd) { 571 case SNDRV_PCM_IOCTL_PVERSION: 572 case SNDRV_PCM_IOCTL_INFO: 573 case SNDRV_PCM_IOCTL_TSTAMP: 574 case SNDRV_PCM_IOCTL_TTSTAMP: 575 case SNDRV_PCM_IOCTL_USER_PVERSION: 576 case SNDRV_PCM_IOCTL_HWSYNC: 577 case SNDRV_PCM_IOCTL_PREPARE: 578 case SNDRV_PCM_IOCTL_RESET: 579 case SNDRV_PCM_IOCTL_START: 580 case SNDRV_PCM_IOCTL_DROP: 581 case SNDRV_PCM_IOCTL_DRAIN: 582 case SNDRV_PCM_IOCTL_PAUSE: 583 case SNDRV_PCM_IOCTL_HW_FREE: 584 case SNDRV_PCM_IOCTL_RESUME: 585 case SNDRV_PCM_IOCTL_XRUN: 586 case SNDRV_PCM_IOCTL_LINK: 587 case SNDRV_PCM_IOCTL_UNLINK: 588 case __SNDRV_PCM_IOCTL_SYNC_PTR32: 589 return snd_pcm_common_ioctl(file, substream, cmd, argp); 590 case __SNDRV_PCM_IOCTL_SYNC_PTR64: 591 #ifdef CONFIG_X86_X32_ABI 592 if (in_x32_syscall()) 593 return snd_pcm_ioctl_sync_ptr_x32(substream, argp); 594 #endif /* CONFIG_X86_X32_ABI */ 595 return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); 596 case SNDRV_PCM_IOCTL_HW_REFINE32: 597 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); 598 case SNDRV_PCM_IOCTL_HW_PARAMS32: 599 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); 600 case SNDRV_PCM_IOCTL_SW_PARAMS32: 601 return snd_pcm_ioctl_sw_params_compat(substream, argp); 602 case SNDRV_PCM_IOCTL_STATUS_COMPAT32: 603 return snd_pcm_status_user32(substream, argp, false); 604 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: 605 return snd_pcm_status_user32(substream, argp, true); 606 case SNDRV_PCM_IOCTL_CHANNEL_INFO32: 607 return snd_pcm_ioctl_channel_info_compat(substream, argp); 608 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: 609 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 610 case SNDRV_PCM_IOCTL_READI_FRAMES32: 611 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 612 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: 613 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 614 case SNDRV_PCM_IOCTL_READN_FRAMES32: 615 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 616 case SNDRV_PCM_IOCTL_DELAY32: 617 return snd_pcm_ioctl_delay_compat(substream, argp); 618 case SNDRV_PCM_IOCTL_REWIND32: 619 return snd_pcm_ioctl_rewind_compat(substream, argp); 620 case SNDRV_PCM_IOCTL_FORWARD32: 621 return snd_pcm_ioctl_forward_compat(substream, argp); 622 case SNDRV_PCM_IOCTL_STATUS_COMPAT64: 623 return snd_pcm_status_user_compat64(substream, argp, false); 624 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: 625 return snd_pcm_status_user_compat64(substream, argp, true); 626 #ifdef CONFIG_X86_X32_ABI 627 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: 628 return snd_pcm_ioctl_channel_info_x32(substream, argp); 629 #endif /* CONFIG_X86_X32_ABI */ 630 } 631 632 return -ENOIOCTLCMD; 633 } 634