2 * 32bit -> 64bit ioctl wrapper for PCM API
3 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 /* This file included from pcm_native.c */
23 #include <linux/compat.h>
24 #include <linux/slab.h>
26 static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
29 snd_pcm_sframes_t delay;
33 fs = snd_enter_user();
34 err = snd_pcm_delay(substream, &delay);
38 if (put_user(delay, src))
43 static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream,
46 snd_pcm_uframes_t frames;
49 if (get_user(frames, src))
51 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
52 err = snd_pcm_playback_rewind(substream, frames);
54 err = snd_pcm_capture_rewind(substream, frames);
55 if (put_user(err, src))
57 return err < 0 ? err : 0;
60 static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream,
63 snd_pcm_uframes_t frames;
66 if (get_user(frames, src))
68 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
69 err = snd_pcm_playback_forward(substream, frames);
71 err = snd_pcm_capture_forward(substream, frames);
72 if (put_user(err, src))
74 return err < 0 ? err : 0;
77 struct snd_pcm_hw_params32 {
79 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */
80 struct snd_mask mres[5]; /* reserved masks */
81 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
82 struct snd_interval ires[9]; /* reserved intervals */
90 unsigned char reserved[64];
93 struct snd_pcm_sw_params32 {
101 u32 silence_threshold;
106 unsigned char reserved[56];
109 /* recalcuate the boundary within 32bit */
110 static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
112 snd_pcm_uframes_t boundary;
114 if (! runtime->buffer_size)
116 boundary = runtime->buffer_size;
117 while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
122 static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
123 struct snd_pcm_sw_params32 __user *src)
125 struct snd_pcm_sw_params params;
126 snd_pcm_uframes_t boundary;
129 memset(¶ms, 0, sizeof(params));
130 if (get_user(params.tstamp_mode, &src->tstamp_mode) ||
131 get_user(params.period_step, &src->period_step) ||
132 get_user(params.sleep_min, &src->sleep_min) ||
133 get_user(params.avail_min, &src->avail_min) ||
134 get_user(params.xfer_align, &src->xfer_align) ||
135 get_user(params.start_threshold, &src->start_threshold) ||
136 get_user(params.stop_threshold, &src->stop_threshold) ||
137 get_user(params.silence_threshold, &src->silence_threshold) ||
138 get_user(params.silence_size, &src->silence_size) ||
139 get_user(params.tstamp_type, &src->tstamp_type) ||
140 get_user(params.proto, &src->proto))
143 * Check silent_size parameter. Since we have 64bit boundary,
144 * silence_size must be compared with the 32bit boundary.
146 boundary = recalculate_boundary(substream->runtime);
147 if (boundary && params.silence_size >= boundary)
148 params.silence_size = substream->runtime->boundary;
149 err = snd_pcm_sw_params(substream, ¶ms);
152 if (boundary && put_user(boundary, &src->boundary))
157 struct snd_pcm_channel_info32 {
164 static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream,
165 struct snd_pcm_channel_info32 __user *src)
167 struct snd_pcm_channel_info info;
170 if (get_user(info.channel, &src->channel) ||
171 get_user(info.offset, &src->offset) ||
172 get_user(info.first, &src->first) ||
173 get_user(info.step, &src->step))
175 err = snd_pcm_channel_info(substream, &info);
178 if (put_user(info.channel, &src->channel) ||
179 put_user(info.offset, &src->offset) ||
180 put_user(info.first, &src->first) ||
181 put_user(info.step, &src->step))
186 #ifdef CONFIG_X86_X32
187 /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */
188 static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
189 struct snd_pcm_channel_info __user *src);
190 #define snd_pcm_ioctl_channel_info_x32(s, p) \
191 snd_pcm_channel_info_user(s, p)
192 #endif /* CONFIG_X86_X32 */
194 struct snd_pcm_status32 {
196 struct compat_timespec trigger_tstamp;
197 struct compat_timespec tstamp;
205 u32 audio_tstamp_data;
206 struct compat_timespec audio_tstamp;
207 struct compat_timespec driver_tstamp;
208 u32 audio_tstamp_accuracy;
209 unsigned char reserved[52-2*sizeof(struct compat_timespec)];
210 } __attribute__((packed));
213 static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
214 struct snd_pcm_status32 __user *src,
217 struct snd_pcm_status status;
220 memset(&status, 0, sizeof(status));
222 * with extension, parameters are read/write,
223 * get audio_tstamp_data from user,
224 * ignore rest of status structure
226 if (ext && get_user(status.audio_tstamp_data,
227 (u32 __user *)(&src->audio_tstamp_data)))
229 err = snd_pcm_status(substream, &status);
233 if (clear_user(src, sizeof(*src)))
235 if (put_user(status.state, &src->state) ||
236 compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
237 compat_put_timespec(&status.tstamp, &src->tstamp) ||
238 put_user(status.appl_ptr, &src->appl_ptr) ||
239 put_user(status.hw_ptr, &src->hw_ptr) ||
240 put_user(status.delay, &src->delay) ||
241 put_user(status.avail, &src->avail) ||
242 put_user(status.avail_max, &src->avail_max) ||
243 put_user(status.overrange, &src->overrange) ||
244 put_user(status.suspended_state, &src->suspended_state) ||
245 put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
246 compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
247 compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
248 put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
254 #ifdef CONFIG_X86_X32
255 /* X32 ABI has 64bit timespec and 64bit alignment */
256 struct snd_pcm_status_x32 {
258 u32 rsvd; /* alignment */
259 struct timespec trigger_tstamp;
260 struct timespec tstamp;
268 u32 audio_tstamp_data;
269 struct timespec audio_tstamp;
270 struct timespec driver_tstamp;
271 u32 audio_tstamp_accuracy;
272 unsigned char reserved[52-2*sizeof(struct timespec)];
275 #define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst))
277 static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream,
278 struct snd_pcm_status_x32 __user *src,
281 struct snd_pcm_status status;
284 memset(&status, 0, sizeof(status));
286 * with extension, parameters are read/write,
287 * get audio_tstamp_data from user,
288 * ignore rest of status structure
290 if (ext && get_user(status.audio_tstamp_data,
291 (u32 __user *)(&src->audio_tstamp_data)))
293 err = snd_pcm_status(substream, &status);
297 if (clear_user(src, sizeof(*src)))
299 if (put_user(status.state, &src->state) ||
300 put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
301 put_timespec(&status.tstamp, &src->tstamp) ||
302 put_user(status.appl_ptr, &src->appl_ptr) ||
303 put_user(status.hw_ptr, &src->hw_ptr) ||
304 put_user(status.delay, &src->delay) ||
305 put_user(status.avail, &src->avail) ||
306 put_user(status.avail_max, &src->avail_max) ||
307 put_user(status.overrange, &src->overrange) ||
308 put_user(status.suspended_state, &src->suspended_state) ||
309 put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
310 put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
311 put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
312 put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
317 #endif /* CONFIG_X86_X32 */
319 /* both for HW_PARAMS and HW_REFINE */
320 static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
322 struct snd_pcm_hw_params32 __user *data32)
324 struct snd_pcm_hw_params *data;
325 struct snd_pcm_runtime *runtime;
328 if (! (runtime = substream->runtime))
331 data = kmalloc(sizeof(*data), GFP_KERNEL);
335 /* only fifo_size (RO from userspace) is different, so just copy all */
336 if (copy_from_user(data, data32, sizeof(*data32))) {
342 err = snd_pcm_hw_refine(substream, data);
344 err = snd_pcm_hw_params(substream, data);
347 if (copy_to_user(data32, data, sizeof(*data32)) ||
348 put_user(data->fifo_size, &data32->fifo_size)) {
354 unsigned int new_boundary = recalculate_boundary(runtime);
356 runtime->boundary = new_boundary;
372 static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
373 int dir, struct snd_xferi32 __user *data32)
379 if (! substream->runtime)
381 if (substream->stream != dir)
383 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
386 if (get_user(buf, &data32->buf) ||
387 get_user(frames, &data32->frames))
390 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
391 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames);
393 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames);
396 /* copy the result */
397 if (put_user(err, &data32->result))
403 /* snd_xfern needs remapping of bufs */
406 u32 bufs; /* this is void **; */
411 * xfern ioctl nees to copy (up to) 128 pointers on stack.
412 * although we may pass the copied pointers through f_op->ioctl, but the ioctl
413 * handler there expands again the same 128 pointers on stack, so it is better
414 * to handle the function (calling pcm_readv/writev) directly in this handler.
416 static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
417 int dir, struct snd_xfern32 __user *data32)
420 compat_caddr_t __user *bufptr;
425 if (! substream->runtime)
427 if (substream->stream != dir)
429 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
432 if ((ch = substream->runtime->channels) > 128)
434 if (get_user(buf, &data32->bufs) ||
435 get_user(frames, &data32->frames))
437 bufptr = compat_ptr(buf);
438 bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL);
441 for (i = 0; i < ch; i++) {
443 if (get_user(ptr, bufptr)) {
447 bufs[i] = compat_ptr(ptr);
450 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
451 err = snd_pcm_lib_writev(substream, bufs, frames);
453 err = snd_pcm_lib_readv(substream, bufs, frames);
455 if (put_user(err, &data32->result))
463 struct snd_pcm_mmap_status32 {
467 struct compat_timespec tstamp;
469 struct compat_timespec audio_tstamp;
470 } __attribute__((packed));
472 struct snd_pcm_mmap_control32 {
477 struct snd_pcm_sync_ptr32 {
480 struct snd_pcm_mmap_status32 status;
481 unsigned char reserved[64];
484 struct snd_pcm_mmap_control32 control;
485 unsigned char reserved[64];
487 } __attribute__((packed));
489 static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
490 struct snd_pcm_sync_ptr32 __user *src)
492 struct snd_pcm_runtime *runtime = substream->runtime;
493 volatile struct snd_pcm_mmap_status *status;
494 volatile struct snd_pcm_mmap_control *control;
496 struct snd_pcm_mmap_control scontrol;
497 struct snd_pcm_mmap_status sstatus;
498 snd_pcm_uframes_t boundary;
501 if (snd_BUG_ON(!runtime))
504 if (get_user(sflags, &src->flags) ||
505 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
506 get_user(scontrol.avail_min, &src->c.control.avail_min))
508 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
509 err = snd_pcm_hwsync(substream);
513 status = runtime->status;
514 control = runtime->control;
515 boundary = recalculate_boundary(runtime);
517 boundary = 0x7fffffff;
518 snd_pcm_stream_lock_irq(substream);
519 /* FIXME: we should consider the boundary for the sync from app */
520 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
521 control->appl_ptr = scontrol.appl_ptr;
523 scontrol.appl_ptr = control->appl_ptr % boundary;
524 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
525 control->avail_min = scontrol.avail_min;
527 scontrol.avail_min = control->avail_min;
528 sstatus.state = status->state;
529 sstatus.hw_ptr = status->hw_ptr % boundary;
530 sstatus.tstamp = status->tstamp;
531 sstatus.suspended_state = status->suspended_state;
532 sstatus.audio_tstamp = status->audio_tstamp;
533 snd_pcm_stream_unlock_irq(substream);
534 if (put_user(sstatus.state, &src->s.status.state) ||
535 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
536 compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
537 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
538 compat_put_timespec(&sstatus.audio_tstamp,
539 &src->s.status.audio_tstamp) ||
540 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
541 put_user(scontrol.avail_min, &src->c.control.avail_min))
547 #ifdef CONFIG_X86_X32
548 /* X32 ABI has 64bit timespec and 64bit alignment */
549 struct snd_pcm_mmap_status_x32 {
553 u32 pad2; /* alignment */
554 struct timespec tstamp;
556 struct timespec audio_tstamp;
559 struct snd_pcm_mmap_control_x32 {
564 struct snd_pcm_sync_ptr_x32 {
566 u32 rsvd; /* alignment */
568 struct snd_pcm_mmap_status_x32 status;
569 unsigned char reserved[64];
572 struct snd_pcm_mmap_control_x32 control;
573 unsigned char reserved[64];
577 static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
578 struct snd_pcm_sync_ptr_x32 __user *src)
580 struct snd_pcm_runtime *runtime = substream->runtime;
581 volatile struct snd_pcm_mmap_status *status;
582 volatile struct snd_pcm_mmap_control *control;
584 struct snd_pcm_mmap_control scontrol;
585 struct snd_pcm_mmap_status sstatus;
586 snd_pcm_uframes_t boundary;
589 if (snd_BUG_ON(!runtime))
592 if (get_user(sflags, &src->flags) ||
593 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
594 get_user(scontrol.avail_min, &src->c.control.avail_min))
596 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
597 err = snd_pcm_hwsync(substream);
601 status = runtime->status;
602 control = runtime->control;
603 boundary = recalculate_boundary(runtime);
605 boundary = 0x7fffffff;
606 snd_pcm_stream_lock_irq(substream);
607 /* FIXME: we should consider the boundary for the sync from app */
608 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
609 control->appl_ptr = scontrol.appl_ptr;
611 scontrol.appl_ptr = control->appl_ptr % boundary;
612 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
613 control->avail_min = scontrol.avail_min;
615 scontrol.avail_min = control->avail_min;
616 sstatus.state = status->state;
617 sstatus.hw_ptr = status->hw_ptr % boundary;
618 sstatus.tstamp = status->tstamp;
619 sstatus.suspended_state = status->suspended_state;
620 sstatus.audio_tstamp = status->audio_tstamp;
621 snd_pcm_stream_unlock_irq(substream);
622 if (put_user(sstatus.state, &src->s.status.state) ||
623 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
624 put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
625 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
626 put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) ||
627 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
628 put_user(scontrol.avail_min, &src->c.control.avail_min))
633 #endif /* CONFIG_X86_X32 */
638 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32),
639 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
640 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
641 SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32),
642 SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
643 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
644 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
645 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
646 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
647 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32),
648 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32),
649 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32),
650 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32),
651 SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32),
652 #ifdef CONFIG_X86_X32
653 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info),
654 SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32),
655 SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32),
656 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32),
657 #endif /* CONFIG_X86_X32 */
660 static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
662 struct snd_pcm_file *pcm_file;
663 struct snd_pcm_substream *substream;
664 void __user *argp = compat_ptr(arg);
666 pcm_file = file->private_data;
669 substream = pcm_file->substream;
674 * When PCM is used on 32bit mode, we need to disable
675 * mmap of PCM status/control records because of the size
678 pcm_file->no_compat_mmap = 1;
681 case SNDRV_PCM_IOCTL_PVERSION:
682 case SNDRV_PCM_IOCTL_INFO:
683 case SNDRV_PCM_IOCTL_TSTAMP:
684 case SNDRV_PCM_IOCTL_TTSTAMP:
685 case SNDRV_PCM_IOCTL_HWSYNC:
686 case SNDRV_PCM_IOCTL_PREPARE:
687 case SNDRV_PCM_IOCTL_RESET:
688 case SNDRV_PCM_IOCTL_START:
689 case SNDRV_PCM_IOCTL_DROP:
690 case SNDRV_PCM_IOCTL_DRAIN:
691 case SNDRV_PCM_IOCTL_PAUSE:
692 case SNDRV_PCM_IOCTL_HW_FREE:
693 case SNDRV_PCM_IOCTL_RESUME:
694 case SNDRV_PCM_IOCTL_XRUN:
695 case SNDRV_PCM_IOCTL_LINK:
696 case SNDRV_PCM_IOCTL_UNLINK:
697 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
698 return snd_pcm_playback_ioctl1(file, substream, cmd, argp);
700 return snd_pcm_capture_ioctl1(file, substream, cmd, argp);
701 case SNDRV_PCM_IOCTL_HW_REFINE32:
702 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
703 case SNDRV_PCM_IOCTL_HW_PARAMS32:
704 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp);
705 case SNDRV_PCM_IOCTL_SW_PARAMS32:
706 return snd_pcm_ioctl_sw_params_compat(substream, argp);
707 case SNDRV_PCM_IOCTL_STATUS32:
708 return snd_pcm_status_user_compat(substream, argp, false);
709 case SNDRV_PCM_IOCTL_STATUS_EXT32:
710 return snd_pcm_status_user_compat(substream, argp, true);
711 case SNDRV_PCM_IOCTL_SYNC_PTR32:
712 return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
713 case SNDRV_PCM_IOCTL_CHANNEL_INFO32:
714 return snd_pcm_ioctl_channel_info_compat(substream, argp);
715 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32:
716 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
717 case SNDRV_PCM_IOCTL_READI_FRAMES32:
718 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
719 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32:
720 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
721 case SNDRV_PCM_IOCTL_READN_FRAMES32:
722 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
723 case SNDRV_PCM_IOCTL_DELAY32:
724 return snd_pcm_ioctl_delay_compat(substream, argp);
725 case SNDRV_PCM_IOCTL_REWIND32:
726 return snd_pcm_ioctl_rewind_compat(substream, argp);
727 case SNDRV_PCM_IOCTL_FORWARD32:
728 return snd_pcm_ioctl_forward_compat(substream, argp);
729 #ifdef CONFIG_X86_X32
730 case SNDRV_PCM_IOCTL_STATUS_X32:
731 return snd_pcm_status_user_x32(substream, argp, false);
732 case SNDRV_PCM_IOCTL_STATUS_EXT_X32:
733 return snd_pcm_status_user_x32(substream, argp, true);
734 case SNDRV_PCM_IOCTL_SYNC_PTR_X32:
735 return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
736 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32:
737 return snd_pcm_ioctl_channel_info_x32(substream, argp);
738 #endif /* CONFIG_X86_X32 */