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; 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 err = -EFAULT; 253 goto error; 254 } 255 256 if (refine) 257 err = snd_pcm_hw_refine(substream, data); 258 else 259 err = snd_pcm_hw_params(substream, data); 260 if (err < 0) 261 goto error; 262 if (copy_to_user(data32, data, sizeof(*data32)) || 263 put_user(data->fifo_size, &data32->fifo_size)) { 264 err = -EFAULT; 265 goto error; 266 } 267 268 if (! refine) { 269 unsigned int new_boundary = recalculate_boundary(runtime); 270 if (new_boundary) 271 runtime->boundary = new_boundary; 272 } 273 error: 274 kfree(data); 275 return err; 276 } 277 278 279 /* 280 */ 281 struct snd_xferi32 { 282 s32 result; 283 u32 buf; 284 u32 frames; 285 }; 286 287 static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, 288 int dir, struct snd_xferi32 __user *data32) 289 { 290 compat_caddr_t buf; 291 u32 frames; 292 int err; 293 294 if (! substream->runtime) 295 return -ENOTTY; 296 if (substream->stream != dir) 297 return -EINVAL; 298 if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) 299 return -EBADFD; 300 301 if (get_user(buf, &data32->buf) || 302 get_user(frames, &data32->frames)) 303 return -EFAULT; 304 305 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 306 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); 307 else 308 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); 309 if (err < 0) 310 return err; 311 /* copy the result */ 312 if (put_user(err, &data32->result)) 313 return -EFAULT; 314 return 0; 315 } 316 317 318 /* snd_xfern needs remapping of bufs */ 319 struct snd_xfern32 { 320 s32 result; 321 u32 bufs; /* this is void **; */ 322 u32 frames; 323 }; 324 325 /* 326 * xfern ioctl nees to copy (up to) 128 pointers on stack. 327 * although we may pass the copied pointers through f_op->ioctl, but the ioctl 328 * handler there expands again the same 128 pointers on stack, so it is better 329 * to handle the function (calling pcm_readv/writev) directly in this handler. 330 */ 331 static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, 332 int dir, struct snd_xfern32 __user *data32) 333 { 334 compat_caddr_t buf; 335 compat_caddr_t __user *bufptr; 336 u32 frames; 337 void __user **bufs; 338 int err, ch, i; 339 340 if (! substream->runtime) 341 return -ENOTTY; 342 if (substream->stream != dir) 343 return -EINVAL; 344 if (substream->runtime->state == SNDRV_PCM_STATE_OPEN) 345 return -EBADFD; 346 347 ch = substream->runtime->channels; 348 if (ch > 128) 349 return -EINVAL; 350 if (get_user(buf, &data32->bufs) || 351 get_user(frames, &data32->frames)) 352 return -EFAULT; 353 bufptr = compat_ptr(buf); 354 bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); 355 if (bufs == NULL) 356 return -ENOMEM; 357 for (i = 0; i < ch; i++) { 358 u32 ptr; 359 if (get_user(ptr, bufptr)) { 360 kfree(bufs); 361 return -EFAULT; 362 } 363 bufs[i] = compat_ptr(ptr); 364 bufptr++; 365 } 366 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 367 err = snd_pcm_lib_writev(substream, bufs, frames); 368 else 369 err = snd_pcm_lib_readv(substream, bufs, frames); 370 if (err >= 0) { 371 if (put_user(err, &data32->result)) 372 err = -EFAULT; 373 } 374 kfree(bufs); 375 return err; 376 } 377 378 #ifdef CONFIG_X86_X32_ABI 379 /* X32 ABI has 64bit timespec and 64bit alignment */ 380 struct snd_pcm_mmap_status_x32 { 381 snd_pcm_state_t state; 382 s32 pad1; 383 u32 hw_ptr; 384 u32 pad2; /* alignment */ 385 s64 tstamp_sec; 386 s64 tstamp_nsec; 387 snd_pcm_state_t suspended_state; 388 s32 pad3; 389 s64 audio_tstamp_sec; 390 s64 audio_tstamp_nsec; 391 } __packed; 392 393 struct snd_pcm_mmap_control_x32 { 394 u32 appl_ptr; 395 u32 avail_min; 396 }; 397 398 struct snd_pcm_sync_ptr_x32 { 399 u32 flags; 400 u32 rsvd; /* alignment */ 401 union { 402 struct snd_pcm_mmap_status_x32 status; 403 unsigned char reserved[64]; 404 } s; 405 union { 406 struct snd_pcm_mmap_control_x32 control; 407 unsigned char reserved[64]; 408 } c; 409 } __packed; 410 411 static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, 412 struct snd_pcm_sync_ptr_x32 __user *src) 413 { 414 struct snd_pcm_runtime *runtime = substream->runtime; 415 volatile struct snd_pcm_mmap_status *status; 416 volatile struct snd_pcm_mmap_control *control; 417 u32 sflags; 418 struct snd_pcm_mmap_control scontrol; 419 struct snd_pcm_mmap_status sstatus; 420 snd_pcm_uframes_t boundary; 421 int err; 422 423 if (snd_BUG_ON(!runtime)) 424 return -EINVAL; 425 426 if (get_user(sflags, &src->flags) || 427 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || 428 get_user(scontrol.avail_min, &src->c.control.avail_min)) 429 return -EFAULT; 430 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 431 err = snd_pcm_hwsync(substream); 432 if (err < 0) 433 return err; 434 } 435 status = runtime->status; 436 control = runtime->control; 437 boundary = recalculate_boundary(runtime); 438 if (!boundary) 439 boundary = 0x7fffffff; 440 snd_pcm_stream_lock_irq(substream); 441 /* FIXME: we should consider the boundary for the sync from app */ 442 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 443 control->appl_ptr = scontrol.appl_ptr; 444 else 445 scontrol.appl_ptr = control->appl_ptr % boundary; 446 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 447 control->avail_min = scontrol.avail_min; 448 else 449 scontrol.avail_min = control->avail_min; 450 sstatus.state = status->state; 451 sstatus.hw_ptr = status->hw_ptr % boundary; 452 sstatus.tstamp = status->tstamp; 453 sstatus.suspended_state = status->suspended_state; 454 sstatus.audio_tstamp = status->audio_tstamp; 455 snd_pcm_stream_unlock_irq(substream); 456 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) 457 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 458 if (put_user(sstatus.state, &src->s.status.state) || 459 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || 460 put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) || 461 put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) || 462 put_user(sstatus.suspended_state, &src->s.status.suspended_state) || 463 put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) || 464 put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) || 465 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || 466 put_user(scontrol.avail_min, &src->c.control.avail_min)) 467 return -EFAULT; 468 469 return 0; 470 } 471 #endif /* CONFIG_X86_X32_ABI */ 472 473 #ifdef __BIG_ENDIAN 474 typedef char __pad_before_u32[4]; 475 typedef char __pad_after_u32[0]; 476 #else 477 typedef char __pad_before_u32[0]; 478 typedef char __pad_after_u32[4]; 479 #endif 480 481 /* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min 482 * at the wrong offset due to a typo in padding type. 483 * The bug hits only 32bit. 484 * A workaround for incorrect read/write is needed only in 32bit compat mode. 485 */ 486 struct __snd_pcm_mmap_control64_buggy { 487 __pad_before_u32 __pad1; 488 __u32 appl_ptr; 489 __pad_before_u32 __pad2; /* SiC! here is the bug */ 490 __pad_before_u32 __pad3; 491 __u32 avail_min; 492 __pad_after_uframe __pad4; 493 }; 494 495 static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, 496 struct snd_pcm_sync_ptr __user *_sync_ptr) 497 { 498 struct snd_pcm_runtime *runtime = substream->runtime; 499 struct snd_pcm_sync_ptr sync_ptr; 500 struct __snd_pcm_mmap_control64_buggy *sync_cp; 501 volatile struct snd_pcm_mmap_status *status; 502 volatile struct snd_pcm_mmap_control *control; 503 int err; 504 505 memset(&sync_ptr, 0, sizeof(sync_ptr)); 506 sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; 507 if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) 508 return -EFAULT; 509 if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) 510 return -EFAULT; 511 status = runtime->status; 512 control = runtime->control; 513 if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { 514 err = snd_pcm_hwsync(substream); 515 if (err < 0) 516 return err; 517 } 518 snd_pcm_stream_lock_irq(substream); 519 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { 520 err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); 521 if (err < 0) { 522 snd_pcm_stream_unlock_irq(substream); 523 return err; 524 } 525 } else { 526 sync_cp->appl_ptr = control->appl_ptr; 527 } 528 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) 529 control->avail_min = sync_cp->avail_min; 530 else 531 sync_cp->avail_min = control->avail_min; 532 sync_ptr.s.status.state = status->state; 533 sync_ptr.s.status.hw_ptr = status->hw_ptr; 534 sync_ptr.s.status.tstamp = status->tstamp; 535 sync_ptr.s.status.suspended_state = status->suspended_state; 536 sync_ptr.s.status.audio_tstamp = status->audio_tstamp; 537 snd_pcm_stream_unlock_irq(substream); 538 if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) 539 snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); 540 if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) 541 return -EFAULT; 542 return 0; 543 } 544 545 /* 546 */ 547 enum { 548 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), 549 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), 550 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), 551 SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), 552 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), 553 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), 554 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), 555 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), 556 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), 557 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), 558 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), 559 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), 560 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), 561 SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), 562 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), 563 #ifdef CONFIG_X86_X32_ABI 564 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), 565 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), 566 #endif /* CONFIG_X86_X32_ABI */ 567 }; 568 569 static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) 570 { 571 struct snd_pcm_file *pcm_file; 572 struct snd_pcm_substream *substream; 573 void __user *argp = compat_ptr(arg); 574 575 pcm_file = file->private_data; 576 if (! pcm_file) 577 return -ENOTTY; 578 substream = pcm_file->substream; 579 if (! substream) 580 return -ENOTTY; 581 582 /* 583 * When PCM is used on 32bit mode, we need to disable 584 * mmap of the old PCM status/control records because 585 * of the size incompatibility. 586 */ 587 pcm_file->no_compat_mmap = 1; 588 589 switch (cmd) { 590 case SNDRV_PCM_IOCTL_PVERSION: 591 case SNDRV_PCM_IOCTL_INFO: 592 case SNDRV_PCM_IOCTL_TSTAMP: 593 case SNDRV_PCM_IOCTL_TTSTAMP: 594 case SNDRV_PCM_IOCTL_USER_PVERSION: 595 case SNDRV_PCM_IOCTL_HWSYNC: 596 case SNDRV_PCM_IOCTL_PREPARE: 597 case SNDRV_PCM_IOCTL_RESET: 598 case SNDRV_PCM_IOCTL_START: 599 case SNDRV_PCM_IOCTL_DROP: 600 case SNDRV_PCM_IOCTL_DRAIN: 601 case SNDRV_PCM_IOCTL_PAUSE: 602 case SNDRV_PCM_IOCTL_HW_FREE: 603 case SNDRV_PCM_IOCTL_RESUME: 604 case SNDRV_PCM_IOCTL_XRUN: 605 case SNDRV_PCM_IOCTL_LINK: 606 case SNDRV_PCM_IOCTL_UNLINK: 607 case __SNDRV_PCM_IOCTL_SYNC_PTR32: 608 return snd_pcm_common_ioctl(file, substream, cmd, argp); 609 case __SNDRV_PCM_IOCTL_SYNC_PTR64: 610 #ifdef CONFIG_X86_X32_ABI 611 if (in_x32_syscall()) 612 return snd_pcm_ioctl_sync_ptr_x32(substream, argp); 613 #endif /* CONFIG_X86_X32_ABI */ 614 return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); 615 case SNDRV_PCM_IOCTL_HW_REFINE32: 616 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); 617 case SNDRV_PCM_IOCTL_HW_PARAMS32: 618 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); 619 case SNDRV_PCM_IOCTL_SW_PARAMS32: 620 return snd_pcm_ioctl_sw_params_compat(substream, argp); 621 case SNDRV_PCM_IOCTL_STATUS_COMPAT32: 622 return snd_pcm_status_user32(substream, argp, false); 623 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: 624 return snd_pcm_status_user32(substream, argp, true); 625 case SNDRV_PCM_IOCTL_CHANNEL_INFO32: 626 return snd_pcm_ioctl_channel_info_compat(substream, argp); 627 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: 628 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 629 case SNDRV_PCM_IOCTL_READI_FRAMES32: 630 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 631 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: 632 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); 633 case SNDRV_PCM_IOCTL_READN_FRAMES32: 634 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); 635 case SNDRV_PCM_IOCTL_DELAY32: 636 return snd_pcm_ioctl_delay_compat(substream, argp); 637 case SNDRV_PCM_IOCTL_REWIND32: 638 return snd_pcm_ioctl_rewind_compat(substream, argp); 639 case SNDRV_PCM_IOCTL_FORWARD32: 640 return snd_pcm_ioctl_forward_compat(substream, argp); 641 case SNDRV_PCM_IOCTL_STATUS_COMPAT64: 642 return snd_pcm_status_user_compat64(substream, argp, false); 643 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: 644 return snd_pcm_status_user_compat64(substream, argp, true); 645 #ifdef CONFIG_X86_X32_ABI 646 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: 647 return snd_pcm_ioctl_channel_info_x32(substream, argp); 648 #endif /* CONFIG_X86_X32_ABI */ 649 } 650 651 return -ENOIOCTLCMD; 652 } 653