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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * 32bit -> 64bit ioctl wrapper for PCM API4 * 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_ABI151/* 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 structure195 */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 else306 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 ioctl326 * handler there expands again the same 128 pointers on stack, so it is better327 * 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 else365 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_ABI374/* 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 else440 scontrol.appl_ptr = control->appl_ptr % boundary;441 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))442 control->avail_min = scontrol.avail_min;443 else444 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_ENDIAN469typedef char __pad_before_u32[4];470typedef char __pad_after_u32[0];471#else472typedef char __pad_before_u32[0];473typedef char __pad_after_u32[4];474#endif475 476/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min477 * 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 else524 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_ABI557 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 disable577 * mmap of the old PCM status/control records because578 * 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_ABI604 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_ABI639 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