]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blame - sound/core/pcm_compat.c
projects / mirror_ubuntu-hirsute-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
treewide: kmalloc() -> kmalloc_array()
[mirror_ubuntu-hirsute-kernel.git] / sound / core / pcm_compat.c
CommitLineData
1da177e4
LT		 1/*
2 * 32bit -> 64bit ioctl wrapper for PCM API
3 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
4 *
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.
9 *
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.
14 *
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
18 *
19 */
20
21/* This file included from pcm_native.c */
22
23#include <linux/compat.h>
5a0e3ad6 24#include <linux/slab.h>
1da177e4 25
877211f5 26static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
1da177e4
LT		 27 s32 __user *src)
28{
29 snd_pcm_sframes_t delay;
912e4c33 30 int err;
1da177e4 31
912e4c33
JM		 32 err = snd_pcm_delay(substream, &delay);
33 if (err)
34 return err;
1da177e4
LT		 35 if (put_user(delay, src))
36 return -EFAULT;
c2c86a97 37 return 0;
1da177e4
LT		 38}
39
877211f5 40static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream,
1da177e4
LT		 41 u32 __user *src)
42{
43 snd_pcm_uframes_t frames;
44 int err;
45
46 if (get_user(frames, src))
47 return -EFAULT;
763e5067 48 err = snd_pcm_rewind(substream, frames);
1da177e4
LT		 49 if (put_user(err, src))
50 return -EFAULT;
51 return err < 0 ? err : 0;
52}
53
877211f5 54static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream,
1da177e4
LT		 55 u32 __user *src)
56{
57 snd_pcm_uframes_t frames;
58 int err;
59
60 if (get_user(frames, src))
61 return -EFAULT;
763e5067 62 err = snd_pcm_forward(substream, frames);
1da177e4
LT		 63 if (put_user(err, src))
64 return -EFAULT;
65 return err < 0 ? err : 0;
66}
67
877211f5 68struct snd_pcm_hw_params32 {
1da177e4 69 u32 flags;
877211f5
TI		 70 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */
71 struct snd_mask mres[5]; /* reserved masks */
72 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
73 struct snd_interval ires[9]; /* reserved intervals */
1da177e4
LT		 74 u32 rmask;
75 u32 cmask;
76 u32 info;
77 u32 msbits;
78 u32 rate_num;
79 u32 rate_den;
80 u32 fifo_size;
81 unsigned char reserved[64];
82};
83
877211f5 84struct snd_pcm_sw_params32 {
1da177e4
LT		 85 s32 tstamp_mode;
86 u32 period_step;
87 u32 sleep_min;
88 u32 avail_min;
89 u32 xfer_align;
90 u32 start_threshold;
91 u32 stop_threshold;
92 u32 silence_threshold;
93 u32 silence_size;
94 u32 boundary;
e58c295c
TI		 95 u32 proto;
96 u32 tstamp_type;
97 unsigned char reserved[56];
1da177e4
LT		 98};
99
b2711310 100/* recalcuate the boundary within 32bit */
877211f5 101static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
b2711310
TI		 102{
103 snd_pcm_uframes_t boundary;
104
105 if (! runtime->buffer_size)
106 return 0;
107 boundary = runtime->buffer_size;
108 while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
109 boundary *= 2;
110 return boundary;
111}
112
877211f5
TI		 113static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
114 struct snd_pcm_sw_params32 __user *src)
1da177e4 115{
877211f5 116 struct snd_pcm_sw_params params;
b2711310 117 snd_pcm_uframes_t boundary;
1da177e4
LT		 118 int err;
119
120 memset(&params, 0, sizeof(params));
121 if (get_user(params.tstamp_mode, &src->tstamp_mode) ||
122 get_user(params.period_step, &src->period_step) ||
123 get_user(params.sleep_min, &src->sleep_min) ||
124 get_user(params.avail_min, &src->avail_min) ||
125 get_user(params.xfer_align, &src->xfer_align) ||
126 get_user(params.start_threshold, &src->start_threshold) ||
127 get_user(params.stop_threshold, &src->stop_threshold) ||
128 get_user(params.silence_threshold, &src->silence_threshold) ||
e58c295c
TI		 129 get_user(params.silence_size, &src->silence_size) ||
130 get_user(params.tstamp_type, &src->tstamp_type) ||
131 get_user(params.proto, &src->proto))
1da177e4 132 return -EFAULT;
b2711310
TI		 133 /*
134 * Check silent_size parameter. Since we have 64bit boundary,
135 * silence_size must be compared with the 32bit boundary.
136 */
137 boundary = recalculate_boundary(substream->runtime);
138 if (boundary && params.silence_size >= boundary)
139 params.silence_size = substream->runtime->boundary;
1da177e4
LT		 140 err = snd_pcm_sw_params(substream, &params);
141 if (err < 0)
142 return err;
7153a558 143 if (boundary && put_user(boundary, &src->boundary))
1da177e4
LT		 144 return -EFAULT;
145 return err;
146}
147
877211f5 148struct snd_pcm_channel_info32 {
1da177e4
LT		 149 u32 channel;
150 u32 offset;
151 u32 first;
152 u32 step;
153};
154
877211f5
TI		 155static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream,
156 struct snd_pcm_channel_info32 __user *src)
1da177e4 157{
877211f5 158 struct snd_pcm_channel_info info;
1da177e4
LT		 159 int err;
160
161 if (get_user(info.channel, &src->channel) ||
162 get_user(info.offset, &src->offset) ||
163 get_user(info.first, &src->first) ||
164 get_user(info.step, &src->step))
165 return -EFAULT;
166 err = snd_pcm_channel_info(substream, &info);
167 if (err < 0)
168 return err;
169 if (put_user(info.channel, &src->channel) ||
170 put_user(info.offset, &src->offset) ||
171 put_user(info.first, &src->first) ||
172 put_user(info.step, &src->step))
173 return -EFAULT;
174 return err;
175}
176
513ace79
TI		 177#ifdef CONFIG_X86_X32
178/* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */
179static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
180 struct snd_pcm_channel_info __user *src);
181#define snd_pcm_ioctl_channel_info_x32(s, p) \
182 snd_pcm_channel_info_user(s, p)
183#endif /* CONFIG_X86_X32 */
184
877211f5 185struct snd_pcm_status32 {
1da177e4
LT		 186 s32 state;
187 struct compat_timespec trigger_tstamp;
188 struct compat_timespec tstamp;
189 u32 appl_ptr;
190 u32 hw_ptr;
191 s32 delay;
192 u32 avail;
193 u32 avail_max;
194 u32 overrange;
195 s32 suspended_state;
5442a73a 196 u32 audio_tstamp_data;
4eeaaeae 197 struct compat_timespec audio_tstamp;
5442a73a
PLB		 198 struct compat_timespec driver_tstamp;
199 u32 audio_tstamp_accuracy;
200 unsigned char reserved[52-2*sizeof(struct compat_timespec)];
1da177e4
LT		 201} __attribute__((packed));
202
203
877211f5 204static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
5442a73a
PLB		 205 struct snd_pcm_status32 __user *src,
206 bool ext)
1da177e4 207{
877211f5 208 struct snd_pcm_status status;
1da177e4
LT		 209 int err;
210
5442a73a
PLB		 211 memset(&status, 0, sizeof(status));
212 /*
213 * with extension, parameters are read/write,
214 * get audio_tstamp_data from user,
215 * ignore rest of status structure
216 */
217 if (ext && get_user(status.audio_tstamp_data,
218 (u32 __user *)(&src->audio_tstamp_data)))
219 return -EFAULT;
1da177e4
LT		 220 err = snd_pcm_status(substream, &status);
221 if (err < 0)
222 return err;
223
317168d0
TI		 224 if (clear_user(src, sizeof(*src)))
225 return -EFAULT;
1da177e4 226 if (put_user(status.state, &src->state) ||
4eeaaeae
PLB		 227 compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
228 compat_put_timespec(&status.tstamp, &src->tstamp) ||
1da177e4
LT		 229 put_user(status.appl_ptr, &src->appl_ptr) ||
230 put_user(status.hw_ptr, &src->hw_ptr) ||
231 put_user(status.delay, &src->delay) ||
232 put_user(status.avail, &src->avail) ||
233 put_user(status.avail_max, &src->avail_max) ||
234 put_user(status.overrange, &src->overrange) ||
4eeaaeae 235 put_user(status.suspended_state, &src->suspended_state) ||
5442a73a
PLB		 236 put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
237 compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
238 compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
239 put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
1da177e4
LT		 240 return -EFAULT;
241
242 return err;
243}
244
513ace79
TI		 245#ifdef CONFIG_X86_X32
246/* X32 ABI has 64bit timespec and 64bit alignment */
247struct snd_pcm_status_x32 {
248 s32 state;
249 u32 rsvd; /* alignment */
250 struct timespec trigger_tstamp;
251 struct timespec tstamp;
252 u32 appl_ptr;
253 u32 hw_ptr;
254 s32 delay;
255 u32 avail;
256 u32 avail_max;
257 u32 overrange;
258 s32 suspended_state;
259 u32 audio_tstamp_data;
260 struct timespec audio_tstamp;
261 struct timespec driver_tstamp;
262 u32 audio_tstamp_accuracy;
263 unsigned char reserved[52-2*sizeof(struct timespec)];
264} __packed;
265
266#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst))
267
268static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream,
269 struct snd_pcm_status_x32 __user *src,
270 bool ext)
271{
272 struct snd_pcm_status status;
273 int err;
274
275 memset(&status, 0, sizeof(status));
276 /*
277 * with extension, parameters are read/write,
278 * get audio_tstamp_data from user,
279 * ignore rest of status structure
280 */
281 if (ext && get_user(status.audio_tstamp_data,
282 (u32 __user *)(&src->audio_tstamp_data)))
283 return -EFAULT;
284 err = snd_pcm_status(substream, &status);
285 if (err < 0)
286 return err;
287
288 if (clear_user(src, sizeof(*src)))
289 return -EFAULT;
290 if (put_user(status.state, &src->state) ||
291 put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
292 put_timespec(&status.tstamp, &src->tstamp) ||
293 put_user(status.appl_ptr, &src->appl_ptr) ||
294 put_user(status.hw_ptr, &src->hw_ptr) ||
295 put_user(status.delay, &src->delay) ||
296 put_user(status.avail, &src->avail) ||
297 put_user(status.avail_max, &src->avail_max) ||
298 put_user(status.overrange, &src->overrange) ||
299 put_user(status.suspended_state, &src->suspended_state) ||
300 put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
301 put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
302 put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
303 put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
304 return -EFAULT;
305
306 return err;
307}
308#endif /* CONFIG_X86_X32 */
309
1da177e4 310/* both for HW_PARAMS and HW_REFINE */
877211f5 311static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
1da177e4 312 int refine,
877211f5 313 struct snd_pcm_hw_params32 __user *data32)
1da177e4 314{
877211f5
TI		 315 struct snd_pcm_hw_params *data;
316 struct snd_pcm_runtime *runtime;
1da177e4
LT		 317 int err;
318
319 if (! (runtime = substream->runtime))
320 return -ENOTTY;
321
43c54b8c
NB		 322 data = kmalloc(sizeof(*data), GFP_KERNEL);
323 if (!data)
324 return -ENOMEM;
325
326 /* only fifo_size (RO from userspace) is different, so just copy all */
327 if (copy_from_user(data, data32, sizeof(*data32))) {
328 err = -EFAULT;
329 goto error;
330 }
ef44a1ec 331
1da177e4
LT		 332 if (refine)
333 err = snd_pcm_hw_refine(substream, data);
334 else
335 err = snd_pcm_hw_params(substream, data);
336 if (err < 0)
337 goto error;
338 if (copy_to_user(data32, data, sizeof(*data32)) ||
339 put_user(data->fifo_size, &data32->fifo_size)) {
340 err = -EFAULT;
341 goto error;
342 }
343
7153a558
TI		 344 if (! refine) {
345 unsigned int new_boundary = recalculate_boundary(runtime);
346 if (new_boundary)
347 runtime->boundary = new_boundary;
348 }
1da177e4
LT		 349 error:
350 kfree(data);
351 return err;
352}
353
354
355/*
356 */
877211f5 357struct snd_xferi32 {
1da177e4
LT		 358 s32 result;
359 u32 buf;
360 u32 frames;
361};
362
877211f5
TI		 363static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
364 int dir, struct snd_xferi32 __user *data32)
1da177e4
LT		 365{
366 compat_caddr_t buf;
367 u32 frames;
368 int err;
369
370 if (! substream->runtime)
371 return -ENOTTY;
372 if (substream->stream != dir)
373 return -EINVAL;
374 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
375 return -EBADFD;
376
377 if (get_user(buf, &data32->buf) ||
378 get_user(frames, &data32->frames))
379 return -EFAULT;
380
381 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
382 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames);
383 else
384 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames);
385 if (err < 0)
386 return err;
387 /* copy the result */
388 if (put_user(err, &data32->result))
389 return -EFAULT;
390 return 0;
391}
392
393
394/* snd_xfern needs remapping of bufs */
877211f5 395struct snd_xfern32 {
1da177e4
LT		 396 s32 result;
397 u32 bufs; /* this is void **; */
398 u32 frames;
399};
400
401/*
402 * xfern ioctl nees to copy (up to) 128 pointers on stack.
403 * although we may pass the copied pointers through f_op->ioctl, but the ioctl
404 * handler there expands again the same 128 pointers on stack, so it is better
405 * to handle the function (calling pcm_readv/writev) directly in this handler.
406 */
877211f5
TI		 407static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
408 int dir, struct snd_xfern32 __user *data32)
1da177e4
LT		 409{
410 compat_caddr_t buf;
411 compat_caddr_t __user *bufptr;
412 u32 frames;
413 void __user **bufs;
414 int err, ch, i;
415
416 if (! substream->runtime)
417 return -ENOTTY;
418 if (substream->stream != dir)
419 return -EINVAL;
f13876e2
TI		 420 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
421 return -EBADFD;
1da177e4
LT		 422
423 if ((ch = substream->runtime->channels) > 128)
424 return -EINVAL;
425 if (get_user(buf, &data32->bufs) ||
426 get_user(frames, &data32->frames))
427 return -EFAULT;
428 bufptr = compat_ptr(buf);
6da2ec56 429 bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL);
1da177e4
LT		 430 if (bufs == NULL)
431 return -ENOMEM;
432 for (i = 0; i < ch; i++) {
433 u32 ptr;
434 if (get_user(ptr, bufptr)) {
435 kfree(bufs);
436 return -EFAULT;
437 }
ca9380fd 438 bufs[i] = compat_ptr(ptr);
1da177e4
LT		 439 bufptr++;
440 }
441 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
442 err = snd_pcm_lib_writev(substream, bufs, frames);
443 else
444 err = snd_pcm_lib_readv(substream, bufs, frames);
445 if (err >= 0) {
446 if (put_user(err, &data32->result))
447 err = -EFAULT;
448 }
449 kfree(bufs);
450 return err;
451}
452
453
877211f5 454struct snd_pcm_mmap_status32 {
1da177e4
LT		 455 s32 state;
456 s32 pad1;
457 u32 hw_ptr;
458 struct compat_timespec tstamp;
459 s32 suspended_state;
4eeaaeae 460 struct compat_timespec audio_tstamp;
1da177e4
LT		 461} __attribute__((packed));
462
877211f5 463struct snd_pcm_mmap_control32 {
1da177e4
LT		 464 u32 appl_ptr;
465 u32 avail_min;
466};
467
877211f5 468struct snd_pcm_sync_ptr32 {
1da177e4
LT		 469 u32 flags;
470 union {
877211f5 471 struct snd_pcm_mmap_status32 status;
1da177e4
LT		 472 unsigned char reserved[64];
473 } s;
474 union {
877211f5 475 struct snd_pcm_mmap_control32 control;
1da177e4
LT		 476 unsigned char reserved[64];
477 } c;
478} __attribute__((packed));
479
877211f5
TI		 480static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
481 struct snd_pcm_sync_ptr32 __user *src)
1da177e4 482{
877211f5
TI		 483 struct snd_pcm_runtime *runtime = substream->runtime;
484 volatile struct snd_pcm_mmap_status *status;
485 volatile struct snd_pcm_mmap_control *control;
1da177e4 486 u32 sflags;
877211f5
TI		 487 struct snd_pcm_mmap_control scontrol;
488 struct snd_pcm_mmap_status sstatus;
b2711310 489 snd_pcm_uframes_t boundary;
1da177e4
LT		 490 int err;
491
7eaa943c
TI		 492 if (snd_BUG_ON(!runtime))
493 return -EINVAL;
1da177e4
LT		 494
495 if (get_user(sflags, &src->flags) ||
496 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
497 get_user(scontrol.avail_min, &src->c.control.avail_min))
498 return -EFAULT;
499 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
500 err = snd_pcm_hwsync(substream);
501 if (err < 0)
502 return err;
503 }
504 status = runtime->status;
505 control = runtime->control;
b2711310 506 boundary = recalculate_boundary(runtime);
7153a558
TI		 507 if (! boundary)
508 boundary = 0x7fffffff;
1da177e4 509 snd_pcm_stream_lock_irq(substream);
b2711310 510 /* FIXME: we should consider the boundary for the sync from app */
1da177e4
LT		 511 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
512 control->appl_ptr = scontrol.appl_ptr;
513 else
b2711310 514 scontrol.appl_ptr = control->appl_ptr % boundary;
1da177e4
LT		 515 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
516 control->avail_min = scontrol.avail_min;
517 else
518 scontrol.avail_min = control->avail_min;
519 sstatus.state = status->state;
b2711310 520 sstatus.hw_ptr = status->hw_ptr % boundary;
1da177e4
LT		 521 sstatus.tstamp = status->tstamp;
522 sstatus.suspended_state = status->suspended_state;
4eeaaeae 523 sstatus.audio_tstamp = status->audio_tstamp;
1da177e4
LT		 524 snd_pcm_stream_unlock_irq(substream);
525 if (put_user(sstatus.state, &src->s.status.state) ||
526 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
4eeaaeae 527 compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
1da177e4 528 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
4eeaaeae
PLB		 529 compat_put_timespec(&sstatus.audio_tstamp,
530 &src->s.status.audio_tstamp) ||
1da177e4
LT		 531 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
532 put_user(scontrol.avail_min, &src->c.control.avail_min))
533 return -EFAULT;
534
535 return 0;
536}
537
513ace79
TI		 538#ifdef CONFIG_X86_X32
539/* X32 ABI has 64bit timespec and 64bit alignment */
540struct snd_pcm_mmap_status_x32 {
541 s32 state;
542 s32 pad1;
543 u32 hw_ptr;
544 u32 pad2; /* alignment */
545 struct timespec tstamp;
546 s32 suspended_state;
c9adcdbc 547 s32 pad3;
513ace79
TI		 548 struct timespec audio_tstamp;
549} __packed;
550
551struct snd_pcm_mmap_control_x32 {
552 u32 appl_ptr;
553 u32 avail_min;
554};
555
556struct snd_pcm_sync_ptr_x32 {
557 u32 flags;
558 u32 rsvd; /* alignment */
559 union {
560 struct snd_pcm_mmap_status_x32 status;
561 unsigned char reserved[64];
562 } s;
563 union {
564 struct snd_pcm_mmap_control_x32 control;
565 unsigned char reserved[64];
566 } c;
567} __packed;
568
569static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
570 struct snd_pcm_sync_ptr_x32 __user *src)
571{
572 struct snd_pcm_runtime *runtime = substream->runtime;
573 volatile struct snd_pcm_mmap_status *status;
574 volatile struct snd_pcm_mmap_control *control;
575 u32 sflags;
576 struct snd_pcm_mmap_control scontrol;
577 struct snd_pcm_mmap_status sstatus;
578 snd_pcm_uframes_t boundary;
579 int err;
580
581 if (snd_BUG_ON(!runtime))
582 return -EINVAL;
583
584 if (get_user(sflags, &src->flags) ||
585 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
586 get_user(scontrol.avail_min, &src->c.control.avail_min))
587 return -EFAULT;
588 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
589 err = snd_pcm_hwsync(substream);
590 if (err < 0)
591 return err;
592 }
593 status = runtime->status;
594 control = runtime->control;
595 boundary = recalculate_boundary(runtime);
596 if (!boundary)
597 boundary = 0x7fffffff;
598 snd_pcm_stream_lock_irq(substream);
599 /* FIXME: we should consider the boundary for the sync from app */
600 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
601 control->appl_ptr = scontrol.appl_ptr;
602 else
603 scontrol.appl_ptr = control->appl_ptr % boundary;
604 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
605 control->avail_min = scontrol.avail_min;
606 else
607 scontrol.avail_min = control->avail_min;
608 sstatus.state = status->state;
609 sstatus.hw_ptr = status->hw_ptr % boundary;
610 sstatus.tstamp = status->tstamp;
611 sstatus.suspended_state = status->suspended_state;
612 sstatus.audio_tstamp = status->audio_tstamp;
613 snd_pcm_stream_unlock_irq(substream);
614 if (put_user(sstatus.state, &src->s.status.state) ||
615 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
616 put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
617 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
618 put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) ||
619 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
620 put_user(scontrol.avail_min, &src->c.control.avail_min))
621 return -EFAULT;
622
623 return 0;
624}
625#endif /* CONFIG_X86_X32 */
1da177e4
LT		 626
627/*
628 */
629enum {
877211f5
TI		 630 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32),
631 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
632 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
633 SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32),
5442a73a 634 SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
1da177e4 635 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
877211f5 636 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
1da177e4
LT		 637 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
638 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
877211f5
TI		 639 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32),
640 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32),
641 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32),
642 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32),
643 SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32),
513ace79
TI		 644#ifdef CONFIG_X86_X32
645 SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info),
646 SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32),
647 SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32),
648 SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32),
649#endif /* CONFIG_X86_X32 */
1da177e4
LT		 650};
651
652static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
653{
877211f5
TI		 654 struct snd_pcm_file *pcm_file;
655 struct snd_pcm_substream *substream;
1da177e4
LT		 656 void __user *argp = compat_ptr(arg);
657
658 pcm_file = file->private_data;
659 if (! pcm_file)
660 return -ENOTTY;
661 substream = pcm_file->substream;
662 if (! substream)
663 return -ENOTTY;
664
665 /*
666 * When PCM is used on 32bit mode, we need to disable
667 * mmap of PCM status/control records because of the size
668 * incompatibility.
669 */
548a648b 670 pcm_file->no_compat_mmap = 1;
1da177e4
LT		 671
672 switch (cmd) {
673 case SNDRV_PCM_IOCTL_PVERSION:
674 case SNDRV_PCM_IOCTL_INFO:
5a7f2619 675 case SNDRV_PCM_IOCTL_TSTAMP:
6b587ef9 676 case SNDRV_PCM_IOCTL_TTSTAMP:
4b671f57 677 case SNDRV_PCM_IOCTL_USER_PVERSION:
1da177e4
LT		 678 case SNDRV_PCM_IOCTL_HWSYNC:
679 case SNDRV_PCM_IOCTL_PREPARE:
680 case SNDRV_PCM_IOCTL_RESET:
681 case SNDRV_PCM_IOCTL_START:
682 case SNDRV_PCM_IOCTL_DROP:
683 case SNDRV_PCM_IOCTL_DRAIN:
684 case SNDRV_PCM_IOCTL_PAUSE:
685 case SNDRV_PCM_IOCTL_HW_FREE:
686 case SNDRV_PCM_IOCTL_RESUME:
687 case SNDRV_PCM_IOCTL_XRUN:
688 case SNDRV_PCM_IOCTL_LINK:
689 case SNDRV_PCM_IOCTL_UNLINK:
67616fed 690 return snd_pcm_common_ioctl(file, substream, cmd, argp);
1da177e4
LT		 691 case SNDRV_PCM_IOCTL_HW_REFINE32:
692 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
693 case SNDRV_PCM_IOCTL_HW_PARAMS32:
694 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp);
695 case SNDRV_PCM_IOCTL_SW_PARAMS32:
696 return snd_pcm_ioctl_sw_params_compat(substream, argp);
697 case SNDRV_PCM_IOCTL_STATUS32:
5442a73a
PLB		 698 return snd_pcm_status_user_compat(substream, argp, false);
699 case SNDRV_PCM_IOCTL_STATUS_EXT32:
700 return snd_pcm_status_user_compat(substream, argp, true);
1da177e4
LT		 701 case SNDRV_PCM_IOCTL_SYNC_PTR32:
702 return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
703 case SNDRV_PCM_IOCTL_CHANNEL_INFO32:
704 return snd_pcm_ioctl_channel_info_compat(substream, argp);
705 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32:
706 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
707 case SNDRV_PCM_IOCTL_READI_FRAMES32:
708 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
709 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32:
710 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
711 case SNDRV_PCM_IOCTL_READN_FRAMES32:
712 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
713 case SNDRV_PCM_IOCTL_DELAY32:
714 return snd_pcm_ioctl_delay_compat(substream, argp);
715 case SNDRV_PCM_IOCTL_REWIND32:
716 return snd_pcm_ioctl_rewind_compat(substream, argp);
717 case SNDRV_PCM_IOCTL_FORWARD32:
718 return snd_pcm_ioctl_forward_compat(substream, argp);
513ace79
TI		 719#ifdef CONFIG_X86_X32
720 case SNDRV_PCM_IOCTL_STATUS_X32:
721 return snd_pcm_status_user_x32(substream, argp, false);
722 case SNDRV_PCM_IOCTL_STATUS_EXT_X32:
723 return snd_pcm_status_user_x32(substream, argp, true);
724 case SNDRV_PCM_IOCTL_SYNC_PTR_X32:
725 return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
726 case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32:
727 return snd_pcm_ioctl_channel_info_x32(substream, argp);
728#endif /* CONFIG_X86_X32 */
1da177e4
LT		 729 }
730
731 return -ENOIOCTLCMD;
732}
Ubuntu Hirsute Linux kernel mirror