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 12static 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 26static 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 40static 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 54struct 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 70struct 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 86static 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 121struct snd_pcm_channel_info32 { 122 u32 channel; 123 u32 offset; 124 u32 first; 125 u32 step; 126}; 127 128static 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 */ 152static 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 158struct 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 181static 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 */ 234static 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 */ 279struct snd_xferi32 { 280 s32 result; 281 u32 buf; 282 u32 frames; 283}; 284 285static 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 */ 317struct 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 */ 329static 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 */ 375struct snd_pcm_mmap_status_x32 { 376 snd_pcm_state_t state; 377 s32 pad1; 378 u32 hw_ptr; 379 u32 pad2; /* alignment */ 380 s64 tstamp_sec; 381 s64 tstamp_nsec; 382 snd_pcm_state_t suspended_state; 383 s32 pad3; 384 s64 audio_tstamp_sec; 385 s64 audio_tstamp_nsec; 386} __packed; 387 388struct snd_pcm_mmap_control_x32 { 389 u32 appl_ptr; 390 u32 avail_min; 391}; 392 393struct snd_pcm_sync_ptr_x32 { 394 u32 flags; 395 u32 rsvd; /* alignment */ 396 union { 397 struct snd_pcm_mmap_status_x32 status; 398 unsigned char reserved[64]; 399 } s; 400 union { 401 struct snd_pcm_mmap_control_x32 control; 402 unsigned char reserved[64]; 403 } c; 404} __packed; 405 406static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, 407 struct snd_pcm_sync_ptr_x32 __user *src) 408{ 409 struct snd_pcm_runtime *runtime = substream->runtime; 410 volatile struct snd_pcm_mmap_status *status; 411 volatile struct snd_pcm_mmap_control *control; 412 u32 sflags; 413 struct snd_pcm_mmap_control scontrol; 414 struct snd_pcm_mmap_status sstatus; 415 snd_pcm_uframes_t boundary; 416 int err; 417 418 if (snd_BUG_ON(!runtime)) 419 return -EINVAL; 420 421 if (get_user(sflags, &src->flags) || 422 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || 423 get_user(scontrol.avail_min, &src->c.control.avail_min)) 424 return -EFAULT; 425 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 426 err = snd_pcm_hwsync(substream); 427 if (err < 0) 428 return err; 429 } 430 status = runtime->status; 431 control = runtime->control; 432 boundary = recalculate_boundary(runtime); 433 if (!boundary) 434 boundary = 0x7fffffff; 435 scoped_guard(pcm_stream_lock_irq, substream) { 436 /* FIXME: we should consider the boundary for the sync from app */ 437 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 438 control->appl_ptr = scontrol.appl_ptr; 439 else 440 scontrol.appl_ptr = control->appl_ptr % boundary; 441 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 442 control->avail_min = scontrol.avail_min; 443 else 444 scontrol.avail_min = control->avail_min; 445 sstatus.state = status->state; 446 sstatus.hw_ptr = status->hw_ptr % boundary; 447 sstatus.tstamp = status->tstamp; 448 sstatus.suspended_state = status->suspended_state; 449 sstatus.audio_tstamp = status->audio_tstamp; 450 } 451 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 452 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 453 if (put_user(sstatus.state, &src->s.status.state) || 454 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || 455 put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) || 456 put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) || 457 put_user(sstatus.suspended_state, &src->s.status.suspended_state) || 458 put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) || 459 put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) || 460 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || 461 put_user(scontrol.avail_min, &src->c.control.avail_min)) 462 return -EFAULT; 463 464 return 0; 465} 466#endif /* CONFIG_X86_X32_ABI */ 467 468#ifdef __BIG_ENDIAN 469typedef char __pad_before_u32[4]; 470typedef char __pad_after_u32[0]; 471#else 472typedef char __pad_before_u32[0]; 473typedef char __pad_after_u32[4]; 474#endif 475 476/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min 477 * at the wrong offset due to a typo in padding type. 478 * The bug hits only 32bit. 479 * A workaround for incorrect read/write is needed only in 32bit compat mode. 480 */ 481struct __snd_pcm_mmap_control64_buggy { 482 __pad_before_u32 __pad1; 483 __u32 appl_ptr; 484 __pad_before_u32 __pad2; /* SiC! here is the bug */ 485 __pad_before_u32 __pad3; 486 __u32 avail_min; 487 __pad_after_uframe __pad4; 488}; 489 490static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, 491 struct snd_pcm_sync_ptr __user *_sync_ptr) 492{ 493 struct snd_pcm_runtime *runtime = substream->runtime; 494 struct snd_pcm_sync_ptr sync_ptr; 495 struct __snd_pcm_mmap_control64_buggy *sync_cp; 496 volatile struct snd_pcm_mmap_status *status; 497 volatile struct snd_pcm_mmap_control *control; 498 int err; 499 500 memset(&sync_ptr, 0, sizeof(sync_ptr)); 501 sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; 502 if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) 503 return -EFAULT; 504 if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) 505 return -EFAULT; 506 status = runtime->status; 507 control = runtime->control; 508 if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 509 err = snd_pcm_hwsync(substream); 510 if (err < 0) 511 return err; 512 } 513 scoped_guard(pcm_stream_lock_irq, substream) { 514 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { 515 err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); 516 if (err < 0) 517 return err; 518 } else { 519 sync_cp->appl_ptr = control->appl_ptr; 520 } 521 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 522 control->avail_min = sync_cp->avail_min; 523 else 524 sync_cp->avail_min = control->avail_min; 525 sync_ptr.s.status.state = status->state; 526 sync_ptr.s.status.hw_ptr = status->hw_ptr; 527 sync_ptr.s.status.tstamp = status->tstamp; 528 sync_ptr.s.status.suspended_state = status->suspended_state; 529 sync_ptr.s.status.audio_tstamp = status->audio_tstamp; 530 } 531 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) 532 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 533 if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) 534 return -EFAULT; 535 return 0; 536} 537 538/* 539 */ 540enum { 541 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), 542 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), 543 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), 544 SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), 545 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), 546 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), 547 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), 548 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), 549 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), 550 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), 551 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), 552 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), 553 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), 554 SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), 555 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), 556#ifdef CONFIG_X86_X32_ABI 557 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), 558 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), 559#endif /* CONFIG_X86_X32_ABI */ 560}; 561 562static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) 563{ 564 struct snd_pcm_file *pcm_file; 565 struct snd_pcm_substream *substream; 566 void __user *argp = compat_ptr(arg); 567 568 pcm_file = file->private_data; 569 if (! pcm_file) 570 return -ENOTTY; 571 substream = pcm_file->substream; 572 if (! substream) 573 return -ENOTTY; 574 575 /* 576 * When PCM is used on 32bit mode, we need to disable 577 * mmap of the old PCM status/control records because 578 * of the size incompatibility. 579 */ 580 pcm_file->no_compat_mmap = 1; 581 582 switch (cmd) { 583 case SNDRV_PCM_IOCTL_PVERSION: 584 case SNDRV_PCM_IOCTL_INFO: 585 case SNDRV_PCM_IOCTL_TSTAMP: 586 case SNDRV_PCM_IOCTL_TTSTAMP: 587 case SNDRV_PCM_IOCTL_USER_PVERSION: 588 case SNDRV_PCM_IOCTL_HWSYNC: 589 case SNDRV_PCM_IOCTL_PREPARE: 590 case SNDRV_PCM_IOCTL_RESET: 591 case SNDRV_PCM_IOCTL_START: 592 case SNDRV_PCM_IOCTL_DROP: 593 case SNDRV_PCM_IOCTL_DRAIN: 594 case SNDRV_PCM_IOCTL_PAUSE: 595 case SNDRV_PCM_IOCTL_HW_FREE: 596 case SNDRV_PCM_IOCTL_RESUME: 597 case SNDRV_PCM_IOCTL_XRUN: 598 case SNDRV_PCM_IOCTL_LINK: 599 case SNDRV_PCM_IOCTL_UNLINK: 600 case __SNDRV_PCM_IOCTL_SYNC_PTR32: 601 return snd_pcm_common_ioctl(file, substream, cmd, argp); 602 case __SNDRV_PCM_IOCTL_SYNC_PTR64: 603#ifdef CONFIG_X86_X32_ABI 604 if (in_x32_syscall()) 605 return snd_pcm_ioctl_sync_ptr_x32(substream, argp); 606#endif /* CONFIG_X86_X32_ABI */ 607 return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); 608 case SNDRV_PCM_IOCTL_HW_REFINE32: 609 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); 610 case SNDRV_PCM_IOCTL_HW_PARAMS32: 611 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); 612 case SNDRV_PCM_IOCTL_SW_PARAMS32: 613 return snd_pcm_ioctl_sw_params_compat(substream, argp); 614 case SNDRV_PCM_IOCTL_STATUS_COMPAT32: 615 return snd_pcm_status_user32(substream, argp, false); 616 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: 617 return snd_pcm_status_user32(substream, argp, true); 618 case SNDRV_PCM_IOCTL_CHANNEL_INFO32: 619 return snd_pcm_ioctl_channel_info_compat(substream, argp); 620 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: 621 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 622 case SNDRV_PCM_IOCTL_READI_FRAMES32: 623 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 624 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: 625 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 626 case SNDRV_PCM_IOCTL_READN_FRAMES32: 627 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 628 case SNDRV_PCM_IOCTL_DELAY32: 629 return snd_pcm_ioctl_delay_compat(substream, argp); 630 case SNDRV_PCM_IOCTL_REWIND32: 631 return snd_pcm_ioctl_rewind_compat(substream, argp); 632 case SNDRV_PCM_IOCTL_FORWARD32: 633 return snd_pcm_ioctl_forward_compat(substream, argp); 634 case SNDRV_PCM_IOCTL_STATUS_COMPAT64: 635 return snd_pcm_status_user_compat64(substream, argp, false); 636 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: 637 return snd_pcm_status_user_compat64(substream, argp, true); 638#ifdef CONFIG_X86_X32_ABI 639 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: 640 return snd_pcm_ioctl_channel_info_x32(substream, argp); 641#endif /* CONFIG_X86_X32_ABI */ 642 } 643 644 return -ENOIOCTLCMD; 645} 646