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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;
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 */
281struct snd_xferi32 {
282 s32 result;
283 u32 buf;
284 u32 frames;
285};
286
287static 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 */
319struct 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 */
331static 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 */
380struct 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
393struct snd_pcm_mmap_control_x32 {
394 u32 appl_ptr;
395 u32 avail_min;
396};
397
398struct 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
411static 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
474typedef char __pad_before_u32[4];
475typedef char __pad_after_u32[0];
476#else
477typedef char __pad_before_u32[0];
478typedef 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 */
486struct __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
495static 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 */
547enum {
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
569static 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}
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
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 */
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;
239 struct snd_pcm_runtime *runtime;
240 int err;
241
242 if (! (runtime = substream->runtime))
243 return -ENOTTY;
244
245 data = kmalloc(sizeof(*data), GFP_KERNEL);
246 if (!data)
247 return -ENOMEM;
248
249 /* only fifo_size (RO from userspace) is different, so just copy all */
250 if (copy_from_user(data, data32, sizeof(*data32))) {
251 err = -EFAULT;
252 goto error;
253 }
254
255 if (refine)
256 err = snd_pcm_hw_refine(substream, data);
257 else
258 err = snd_pcm_hw_params(substream, data);
259 if (err < 0)
260 goto error;
261 if (copy_to_user(data32, data, sizeof(*data32)) ||
262 put_user(data->fifo_size, &data32->fifo_size)) {
263 err = -EFAULT;
264 goto error;
265 }
266
267 if (! refine) {
268 unsigned int new_boundary = recalculate_boundary(runtime);
269 if (new_boundary)
270 runtime->boundary = new_boundary;
271 }
272 error:
273 kfree(data);
274 return err;
275}
276
277
278/*
279 */
280struct snd_xferi32 {
281 s32 result;
282 u32 buf;
283 u32 frames;
284};
285
286static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
287 int dir, struct snd_xferi32 __user *data32)
288{
289 compat_caddr_t buf;
290 u32 frames;
291 int err;
292
293 if (! substream->runtime)
294 return -ENOTTY;
295 if (substream->stream != dir)
296 return -EINVAL;
297 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
298 return -EBADFD;
299
300 if (get_user(buf, &data32->buf) ||
301 get_user(frames, &data32->frames))
302 return -EFAULT;
303
304 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
305 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames);
306 else
307 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames);
308 if (err < 0)
309 return err;
310 /* copy the result */
311 if (put_user(err, &data32->result))
312 return -EFAULT;
313 return 0;
314}
315
316
317/* snd_xfern needs remapping of bufs */
318struct snd_xfern32 {
319 s32 result;
320 u32 bufs; /* this is void **; */
321 u32 frames;
322};
323
324/*
325 * xfern ioctl nees to copy (up to) 128 pointers on stack.
326 * although we may pass the copied pointers through f_op->ioctl, but the ioctl
327 * handler there expands again the same 128 pointers on stack, so it is better
328 * to handle the function (calling pcm_readv/writev) directly in this handler.
329 */
330static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
331 int dir, struct snd_xfern32 __user *data32)
332{
333 compat_caddr_t buf;
334 compat_caddr_t __user *bufptr;
335 u32 frames;
336 void __user **bufs;
337 int err, ch, i;
338
339 if (! substream->runtime)
340 return -ENOTTY;
341 if (substream->stream != dir)
342 return -EINVAL;
343 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
344 return -EBADFD;
345
346 if ((ch = substream->runtime->channels) > 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 kfree(bufs);
359 return -EFAULT;
360 }
361 bufs[i] = compat_ptr(ptr);
362 bufptr++;
363 }
364 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
365 err = snd_pcm_lib_writev(substream, bufs, frames);
366 else
367 err = snd_pcm_lib_readv(substream, bufs, frames);
368 if (err >= 0) {
369 if (put_user(err, &data32->result))
370 err = -EFAULT;
371 }
372 kfree(bufs);
373 return err;
374}
375
376#ifdef CONFIG_X86_X32
377/* X32 ABI has 64bit timespec and 64bit alignment */
378struct snd_pcm_mmap_status_x32 {
379 snd_pcm_state_t state;
380 s32 pad1;
381 u32 hw_ptr;
382 u32 pad2; /* alignment */
383 s64 tstamp_sec;
384 s64 tstamp_nsec;
385 snd_pcm_state_t suspended_state;
386 s32 pad3;
387 s64 audio_tstamp_sec;
388 s64 audio_tstamp_nsec;
389} __packed;
390
391struct snd_pcm_mmap_control_x32 {
392 u32 appl_ptr;
393 u32 avail_min;
394};
395
396struct snd_pcm_sync_ptr_x32 {
397 u32 flags;
398 u32 rsvd; /* alignment */
399 union {
400 struct snd_pcm_mmap_status_x32 status;
401 unsigned char reserved[64];
402 } s;
403 union {
404 struct snd_pcm_mmap_control_x32 control;
405 unsigned char reserved[64];
406 } c;
407} __packed;
408
409static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
410 struct snd_pcm_sync_ptr_x32 __user *src)
411{
412 struct snd_pcm_runtime *runtime = substream->runtime;
413 volatile struct snd_pcm_mmap_status *status;
414 volatile struct snd_pcm_mmap_control *control;
415 u32 sflags;
416 struct snd_pcm_mmap_control scontrol;
417 struct snd_pcm_mmap_status sstatus;
418 snd_pcm_uframes_t boundary;
419 int err;
420
421 if (snd_BUG_ON(!runtime))
422 return -EINVAL;
423
424 if (get_user(sflags, &src->flags) ||
425 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
426 get_user(scontrol.avail_min, &src->c.control.avail_min))
427 return -EFAULT;
428 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
429 err = snd_pcm_hwsync(substream);
430 if (err < 0)
431 return err;
432 }
433 status = runtime->status;
434 control = runtime->control;
435 boundary = recalculate_boundary(runtime);
436 if (!boundary)
437 boundary = 0x7fffffff;
438 snd_pcm_stream_lock_irq(substream);
439 /* FIXME: we should consider the boundary for the sync from app */
440 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
441 control->appl_ptr = scontrol.appl_ptr;
442 else
443 scontrol.appl_ptr = control->appl_ptr % boundary;
444 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
445 control->avail_min = scontrol.avail_min;
446 else
447 scontrol.avail_min = control->avail_min;
448 sstatus.state = status->state;
449 sstatus.hw_ptr = status->hw_ptr % boundary;
450 sstatus.tstamp = status->tstamp;
451 sstatus.suspended_state = status->suspended_state;
452 sstatus.audio_tstamp = status->audio_tstamp;
453 snd_pcm_stream_unlock_irq(substream);
454 if (put_user(sstatus.state, &src->s.status.state) ||
455 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
456 put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) ||
457 put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) ||
458 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
459 put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) ||
460 put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) ||
461 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
462 put_user(scontrol.avail_min, &src->c.control.avail_min))
463 return -EFAULT;
464
465 return 0;
466}
467#endif /* CONFIG_X86_X32 */
468
469/*
470 */
471enum {
472 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32),
473 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
474 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
475 SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32),
476 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
477 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
478 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
479 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
480 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
481 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32),
482 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32),
483 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32),
484 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32),
485 SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64),
486 SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64),
487#ifdef CONFIG_X86_X32
488 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info),
489 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32),
490#endif /* CONFIG_X86_X32 */
491};
492
493static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
494{
495 struct snd_pcm_file *pcm_file;
496 struct snd_pcm_substream *substream;
497 void __user *argp = compat_ptr(arg);
498
499 pcm_file = file->private_data;
500 if (! pcm_file)
501 return -ENOTTY;
502 substream = pcm_file->substream;
503 if (! substream)
504 return -ENOTTY;
505
506 /*
507 * When PCM is used on 32bit mode, we need to disable
508 * mmap of the old PCM status/control records because
509 * of the size incompatibility.
510 */
511 pcm_file->no_compat_mmap = 1;
512
513 switch (cmd) {
514 case SNDRV_PCM_IOCTL_PVERSION:
515 case SNDRV_PCM_IOCTL_INFO:
516 case SNDRV_PCM_IOCTL_TSTAMP:
517 case SNDRV_PCM_IOCTL_TTSTAMP:
518 case SNDRV_PCM_IOCTL_USER_PVERSION:
519 case SNDRV_PCM_IOCTL_HWSYNC:
520 case SNDRV_PCM_IOCTL_PREPARE:
521 case SNDRV_PCM_IOCTL_RESET:
522 case SNDRV_PCM_IOCTL_START:
523 case SNDRV_PCM_IOCTL_DROP:
524 case SNDRV_PCM_IOCTL_DRAIN:
525 case SNDRV_PCM_IOCTL_PAUSE:
526 case SNDRV_PCM_IOCTL_HW_FREE:
527 case SNDRV_PCM_IOCTL_RESUME:
528 case SNDRV_PCM_IOCTL_XRUN:
529 case SNDRV_PCM_IOCTL_LINK:
530 case SNDRV_PCM_IOCTL_UNLINK:
531 case __SNDRV_PCM_IOCTL_SYNC_PTR32:
532 return snd_pcm_common_ioctl(file, substream, cmd, argp);
533 case __SNDRV_PCM_IOCTL_SYNC_PTR64:
534#ifdef CONFIG_X86_X32
535 if (in_x32_syscall())
536 return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
537#endif /* CONFIG_X86_X32 */
538 return snd_pcm_common_ioctl(file, substream, cmd, argp);
539 case SNDRV_PCM_IOCTL_HW_REFINE32:
540 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
541 case SNDRV_PCM_IOCTL_HW_PARAMS32:
542 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp);
543 case SNDRV_PCM_IOCTL_SW_PARAMS32:
544 return snd_pcm_ioctl_sw_params_compat(substream, argp);
545 case SNDRV_PCM_IOCTL_STATUS_COMPAT32:
546 return snd_pcm_status_user32(substream, argp, false);
547 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32:
548 return snd_pcm_status_user32(substream, argp, true);
549 case SNDRV_PCM_IOCTL_CHANNEL_INFO32:
550 return snd_pcm_ioctl_channel_info_compat(substream, argp);
551 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32:
552 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
553 case SNDRV_PCM_IOCTL_READI_FRAMES32:
554 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
555 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32:
556 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
557 case SNDRV_PCM_IOCTL_READN_FRAMES32:
558 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
559 case SNDRV_PCM_IOCTL_DELAY32:
560 return snd_pcm_ioctl_delay_compat(substream, argp);
561 case SNDRV_PCM_IOCTL_REWIND32:
562 return snd_pcm_ioctl_rewind_compat(substream, argp);
563 case SNDRV_PCM_IOCTL_FORWARD32:
564 return snd_pcm_ioctl_forward_compat(substream, argp);
565 case SNDRV_PCM_IOCTL_STATUS_COMPAT64:
566 return snd_pcm_status_user_compat64(substream, argp, false);
567 case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64:
568 return snd_pcm_status_user_compat64(substream, argp, true);
569#ifdef CONFIG_X86_X32
570 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32:
571 return snd_pcm_ioctl_channel_info_x32(substream, argp);
572#endif /* CONFIG_X86_X32 */
573 }
574
575 return -ENOIOCTLCMD;
576}