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Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * 32bit -> 64bit ioctl wrapper for PCM API | |
4 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> | |
1da177e4 LT |
5 | */ |
6 | ||
7 | /* This file included from pcm_native.c */ | |
8 | ||
9 | #include <linux/compat.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
1da177e4 | 11 | |
877211f5 | 12 | static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
13 | s32 __user *src) |
14 | { | |
15 | snd_pcm_sframes_t delay; | |
912e4c33 | 16 | int err; |
1da177e4 | 17 | |
912e4c33 JM |
18 | err = snd_pcm_delay(substream, &delay); |
19 | if (err) | |
20 | return err; | |
1da177e4 LT |
21 | if (put_user(delay, src)) |
22 | return -EFAULT; | |
c2c86a97 | 23 | return 0; |
1da177e4 LT |
24 | } |
25 | ||
877211f5 | 26 | static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
27 | u32 __user *src) |
28 | { | |
29 | snd_pcm_uframes_t frames; | |
30 | int err; | |
31 | ||
32 | if (get_user(frames, src)) | |
33 | return -EFAULT; | |
763e5067 | 34 | err = snd_pcm_rewind(substream, frames); |
1da177e4 LT |
35 | if (put_user(err, src)) |
36 | return -EFAULT; | |
37 | return err < 0 ? err : 0; | |
38 | } | |
39 | ||
877211f5 | 40 | static int snd_pcm_ioctl_forward_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_forward(substream, frames); |
1da177e4 LT |
49 | if (put_user(err, src)) |
50 | return -EFAULT; | |
51 | return err < 0 ? err : 0; | |
52 | } | |
53 | ||
877211f5 | 54 | struct snd_pcm_hw_params32 { |
1da177e4 | 55 | u32 flags; |
877211f5 TI |
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 */ | |
1da177e4 LT |
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 | ||
877211f5 | 70 | struct snd_pcm_sw_params32 { |
1da177e4 LT |
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; | |
e58c295c TI |
81 | u32 proto; |
82 | u32 tstamp_type; | |
83 | unsigned char reserved[56]; | |
1da177e4 LT |
84 | }; |
85 | ||
877211f5 TI |
86 | static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
87 | struct snd_pcm_sw_params32 __user *src) | |
1da177e4 | 88 | { |
877211f5 | 89 | struct snd_pcm_sw_params params; |
b2711310 | 90 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
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) || | |
e58c295c TI |
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)) | |
1da177e4 | 105 | return -EFAULT; |
b2711310 TI |
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; | |
1da177e4 LT |
113 | err = snd_pcm_sw_params(substream, ¶ms); |
114 | if (err < 0) | |
115 | return err; | |
7153a558 | 116 | if (boundary && put_user(boundary, &src->boundary)) |
1da177e4 LT |
117 | return -EFAULT; |
118 | return err; | |
119 | } | |
120 | ||
877211f5 | 121 | struct snd_pcm_channel_info32 { |
1da177e4 LT |
122 | u32 channel; |
123 | u32 offset; | |
124 | u32 first; | |
125 | u32 step; | |
126 | }; | |
127 | ||
877211f5 TI |
128 | static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
129 | struct snd_pcm_channel_info32 __user *src) | |
1da177e4 | 130 | { |
877211f5 | 131 | struct snd_pcm_channel_info info; |
1da177e4 LT |
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 | ||
513ace79 TI |
150 | #ifdef CONFIG_X86_X32 |
151 | /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ | |
152 | static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, | |
153 | struct snd_pcm_channel_info __user *src); | |
154 | #define snd_pcm_ioctl_channel_info_x32(s, p) \ | |
155 | snd_pcm_channel_info_user(s, p) | |
156 | #endif /* CONFIG_X86_X32 */ | |
157 | ||
3ddee7f8 | 158 | struct compat_snd_pcm_status64 { |
cb639a42 | 159 | snd_pcm_state_t state; |
3ddee7f8 BW |
160 | u8 rsvd[4]; /* alignment */ |
161 | s64 trigger_tstamp_sec; | |
162 | s64 trigger_tstamp_nsec; | |
163 | s64 tstamp_sec; | |
164 | s64 tstamp_nsec; | |
513ace79 TI |
165 | u32 appl_ptr; |
166 | u32 hw_ptr; | |
167 | s32 delay; | |
168 | u32 avail; | |
169 | u32 avail_max; | |
170 | u32 overrange; | |
cb639a42 | 171 | snd_pcm_state_t suspended_state; |
513ace79 | 172 | u32 audio_tstamp_data; |
3ddee7f8 BW |
173 | s64 audio_tstamp_sec; |
174 | s64 audio_tstamp_nsec; | |
175 | s64 driver_tstamp_sec; | |
176 | s64 driver_tstamp_nsec; | |
513ace79 | 177 | u32 audio_tstamp_accuracy; |
3ddee7f8 | 178 | unsigned char reserved[52-4*sizeof(s64)]; |
513ace79 TI |
179 | } __packed; |
180 | ||
3ddee7f8 BW |
181 | static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream, |
182 | struct compat_snd_pcm_status64 __user *src, | |
183 | bool ext) | |
513ace79 | 184 | { |
3ddee7f8 BW |
185 | struct snd_pcm_status64 status; |
186 | struct compat_snd_pcm_status64 compat_status64; | |
513ace79 TI |
187 | int err; |
188 | ||
189 | memset(&status, 0, sizeof(status)); | |
3ddee7f8 | 190 | memset(&compat_status64, 0, sizeof(compat_status64)); |
513ace79 TI |
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; | |
3ddee7f8 | 199 | err = snd_pcm_status64(substream, &status); |
513ace79 TI |
200 | if (err < 0) |
201 | return err; | |
202 | ||
203 | if (clear_user(src, sizeof(*src))) | |
204 | return -EFAULT; | |
3ddee7f8 BW |
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))) | |
513ace79 TI |
228 | return -EFAULT; |
229 | ||
230 | return err; | |
231 | } | |
513ace79 | 232 | |
1da177e4 | 233 | /* both for HW_PARAMS and HW_REFINE */ |
877211f5 | 234 | static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
1da177e4 | 235 | int refine, |
877211f5 | 236 | struct snd_pcm_hw_params32 __user *data32) |
1da177e4 | 237 | { |
877211f5 TI |
238 | struct snd_pcm_hw_params *data; |
239 | struct snd_pcm_runtime *runtime; | |
1da177e4 LT |
240 | int err; |
241 | ||
137c171c TI |
242 | runtime = substream->runtime; |
243 | if (!runtime) | |
1da177e4 LT |
244 | return -ENOTTY; |
245 | ||
43c54b8c NB |
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 | } | |
ef44a1ec | 255 | |
1da177e4 LT |
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 | ||
7153a558 TI |
268 | if (! refine) { |
269 | unsigned int new_boundary = recalculate_boundary(runtime); | |
270 | if (new_boundary) | |
271 | runtime->boundary = new_boundary; | |
272 | } | |
1da177e4 LT |
273 | error: |
274 | kfree(data); | |
275 | return err; | |
276 | } | |
277 | ||
278 | ||
279 | /* | |
280 | */ | |
877211f5 | 281 | struct snd_xferi32 { |
1da177e4 LT |
282 | s32 result; |
283 | u32 buf; | |
284 | u32 frames; | |
285 | }; | |
286 | ||
877211f5 TI |
287 | static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
288 | int dir, struct snd_xferi32 __user *data32) | |
1da177e4 LT |
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->status->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 */ | |
877211f5 | 319 | struct snd_xfern32 { |
1da177e4 LT |
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 | */ | |
877211f5 TI |
331 | static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
332 | int dir, struct snd_xfern32 __user *data32) | |
1da177e4 LT |
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; | |
f13876e2 TI |
344 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) |
345 | return -EBADFD; | |
1da177e4 | 346 | |
137c171c TI |
347 | ch = substream->runtime->channels; |
348 | if (ch > 128) | |
1da177e4 LT |
349 | return -EINVAL; |
350 | if (get_user(buf, &data32->bufs) || | |
351 | get_user(frames, &data32->frames)) | |
352 | return -EFAULT; | |
353 | bufptr = compat_ptr(buf); | |
6da2ec56 | 354 | bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL); |
1da177e4 LT |
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 | } | |
ca9380fd | 363 | bufs[i] = compat_ptr(ptr); |
1da177e4 LT |
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 | ||
513ace79 TI |
378 | #ifdef CONFIG_X86_X32 |
379 | /* X32 ABI has 64bit timespec and 64bit alignment */ | |
380 | struct snd_pcm_mmap_status_x32 { | |
cb639a42 | 381 | snd_pcm_state_t state; |
513ace79 TI |
382 | s32 pad1; |
383 | u32 hw_ptr; | |
384 | u32 pad2; /* alignment */ | |
80fe7430 AB |
385 | s64 tstamp_sec; |
386 | s64 tstamp_nsec; | |
cb639a42 | 387 | snd_pcm_state_t suspended_state; |
c9adcdbc | 388 | s32 pad3; |
80fe7430 AB |
389 | s64 audio_tstamp_sec; |
390 | s64 audio_tstamp_nsec; | |
513ace79 TI |
391 | } __packed; |
392 | ||
393 | struct snd_pcm_mmap_control_x32 { | |
394 | u32 appl_ptr; | |
395 | u32 avail_min; | |
396 | }; | |
397 | ||
398 | struct snd_pcm_sync_ptr_x32 { | |
399 | u32 flags; | |
400 | u32 rsvd; /* alignment */ | |
401 | union { | |
402 | struct snd_pcm_mmap_status_x32 status; | |
403 | unsigned char reserved[64]; | |
404 | } s; | |
405 | union { | |
406 | struct snd_pcm_mmap_control_x32 control; | |
407 | unsigned char reserved[64]; | |
408 | } c; | |
409 | } __packed; | |
410 | ||
411 | static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, | |
412 | struct snd_pcm_sync_ptr_x32 __user *src) | |
413 | { | |
414 | struct snd_pcm_runtime *runtime = substream->runtime; | |
415 | volatile struct snd_pcm_mmap_status *status; | |
416 | volatile struct snd_pcm_mmap_control *control; | |
417 | u32 sflags; | |
418 | struct snd_pcm_mmap_control scontrol; | |
419 | struct snd_pcm_mmap_status sstatus; | |
420 | snd_pcm_uframes_t boundary; | |
421 | int err; | |
422 | ||
423 | if (snd_BUG_ON(!runtime)) | |
424 | return -EINVAL; | |
425 | ||
426 | if (get_user(sflags, &src->flags) || | |
427 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
428 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
429 | return -EFAULT; | |
430 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
431 | err = snd_pcm_hwsync(substream); | |
432 | if (err < 0) | |
433 | return err; | |
434 | } | |
435 | status = runtime->status; | |
436 | control = runtime->control; | |
437 | boundary = recalculate_boundary(runtime); | |
438 | if (!boundary) | |
439 | boundary = 0x7fffffff; | |
440 | snd_pcm_stream_lock_irq(substream); | |
441 | /* FIXME: we should consider the boundary for the sync from app */ | |
442 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) | |
443 | control->appl_ptr = scontrol.appl_ptr; | |
444 | else | |
445 | scontrol.appl_ptr = control->appl_ptr % boundary; | |
446 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) | |
447 | control->avail_min = scontrol.avail_min; | |
448 | else | |
449 | scontrol.avail_min = control->avail_min; | |
450 | sstatus.state = status->state; | |
451 | sstatus.hw_ptr = status->hw_ptr % boundary; | |
452 | sstatus.tstamp = status->tstamp; | |
453 | sstatus.suspended_state = status->suspended_state; | |
454 | sstatus.audio_tstamp = status->audio_tstamp; | |
455 | snd_pcm_stream_unlock_irq(substream); | |
456 | if (put_user(sstatus.state, &src->s.status.state) || | |
457 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
80fe7430 AB |
458 | put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) || |
459 | put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) || | |
513ace79 | 460 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
80fe7430 AB |
461 | put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) || |
462 | put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) || | |
513ace79 TI |
463 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
464 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
465 | return -EFAULT; | |
466 | ||
467 | return 0; | |
468 | } | |
469 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 | 470 | |
228af5a4 TI |
471 | #ifdef __BIG_ENDIAN |
472 | typedef char __pad_before_u32[4]; | |
473 | typedef char __pad_after_u32[0]; | |
474 | #else | |
475 | typedef char __pad_before_u32[0]; | |
476 | typedef char __pad_after_u32[4]; | |
477 | #endif | |
478 | ||
479 | /* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min | |
480 | * at the wrong offset due to a typo in padding type. | |
481 | * The bug hits only 32bit. | |
482 | * A workaround for incorrect read/write is needed only in 32bit compat mode. | |
483 | */ | |
484 | struct __snd_pcm_mmap_control64_buggy { | |
485 | __pad_before_u32 __pad1; | |
486 | __u32 appl_ptr; | |
487 | __pad_before_u32 __pad2; /* SiC! here is the bug */ | |
488 | __pad_before_u32 __pad3; | |
489 | __u32 avail_min; | |
490 | __pad_after_uframe __pad4; | |
491 | }; | |
492 | ||
493 | static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, | |
494 | struct snd_pcm_sync_ptr __user *_sync_ptr) | |
495 | { | |
496 | struct snd_pcm_runtime *runtime = substream->runtime; | |
497 | struct snd_pcm_sync_ptr sync_ptr; | |
498 | struct __snd_pcm_mmap_control64_buggy *sync_cp; | |
499 | volatile struct snd_pcm_mmap_status *status; | |
500 | volatile struct snd_pcm_mmap_control *control; | |
501 | int err; | |
502 | ||
503 | memset(&sync_ptr, 0, sizeof(sync_ptr)); | |
504 | sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control; | |
505 | if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) | |
506 | return -EFAULT; | |
507 | if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp))) | |
508 | return -EFAULT; | |
509 | status = runtime->status; | |
510 | control = runtime->control; | |
511 | if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
512 | err = snd_pcm_hwsync(substream); | |
513 | if (err < 0) | |
514 | return err; | |
515 | } | |
516 | snd_pcm_stream_lock_irq(substream); | |
517 | if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { | |
518 | err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); | |
519 | if (err < 0) { | |
520 | snd_pcm_stream_unlock_irq(substream); | |
521 | return err; | |
522 | } | |
523 | } else { | |
524 | sync_cp->appl_ptr = control->appl_ptr; | |
525 | } | |
526 | if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) | |
527 | control->avail_min = sync_cp->avail_min; | |
528 | else | |
529 | sync_cp->avail_min = control->avail_min; | |
530 | sync_ptr.s.status.state = status->state; | |
531 | sync_ptr.s.status.hw_ptr = status->hw_ptr; | |
532 | sync_ptr.s.status.tstamp = status->tstamp; | |
533 | sync_ptr.s.status.suspended_state = status->suspended_state; | |
534 | sync_ptr.s.status.audio_tstamp = status->audio_tstamp; | |
535 | snd_pcm_stream_unlock_irq(substream); | |
536 | if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) | |
537 | return -EFAULT; | |
538 | return 0; | |
539 | } | |
540 | ||
1da177e4 LT |
541 | /* |
542 | */ | |
543 | enum { | |
877211f5 TI |
544 | SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), |
545 | SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), | |
546 | SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), | |
3ddee7f8 BW |
547 | SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32), |
548 | SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32), | |
1da177e4 | 549 | SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), |
877211f5 | 550 | SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), |
1da177e4 LT |
551 | SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), |
552 | SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), | |
877211f5 TI |
553 | SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), |
554 | SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), | |
555 | SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), | |
556 | SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), | |
3ddee7f8 BW |
557 | SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64), |
558 | SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64), | |
513ace79 TI |
559 | #ifdef CONFIG_X86_X32 |
560 | SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), | |
513ace79 TI |
561 | SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), |
562 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
563 | }; |
564 | ||
565 | static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) | |
566 | { | |
877211f5 TI |
567 | struct snd_pcm_file *pcm_file; |
568 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
569 | void __user *argp = compat_ptr(arg); |
570 | ||
571 | pcm_file = file->private_data; | |
572 | if (! pcm_file) | |
573 | return -ENOTTY; | |
574 | substream = pcm_file->substream; | |
575 | if (! substream) | |
576 | return -ENOTTY; | |
577 | ||
578 | /* | |
579 | * When PCM is used on 32bit mode, we need to disable | |
80fe7430 AB |
580 | * mmap of the old PCM status/control records because |
581 | * of the size incompatibility. | |
1da177e4 | 582 | */ |
548a648b | 583 | pcm_file->no_compat_mmap = 1; |
1da177e4 LT |
584 | |
585 | switch (cmd) { | |
586 | case SNDRV_PCM_IOCTL_PVERSION: | |
587 | case SNDRV_PCM_IOCTL_INFO: | |
5a7f2619 | 588 | case SNDRV_PCM_IOCTL_TSTAMP: |
6b587ef9 | 589 | case SNDRV_PCM_IOCTL_TTSTAMP: |
4b671f57 | 590 | case SNDRV_PCM_IOCTL_USER_PVERSION: |
1da177e4 LT |
591 | case SNDRV_PCM_IOCTL_HWSYNC: |
592 | case SNDRV_PCM_IOCTL_PREPARE: | |
593 | case SNDRV_PCM_IOCTL_RESET: | |
594 | case SNDRV_PCM_IOCTL_START: | |
595 | case SNDRV_PCM_IOCTL_DROP: | |
596 | case SNDRV_PCM_IOCTL_DRAIN: | |
597 | case SNDRV_PCM_IOCTL_PAUSE: | |
598 | case SNDRV_PCM_IOCTL_HW_FREE: | |
599 | case SNDRV_PCM_IOCTL_RESUME: | |
600 | case SNDRV_PCM_IOCTL_XRUN: | |
601 | case SNDRV_PCM_IOCTL_LINK: | |
602 | case SNDRV_PCM_IOCTL_UNLINK: | |
80fe7430 AB |
603 | case __SNDRV_PCM_IOCTL_SYNC_PTR32: |
604 | return snd_pcm_common_ioctl(file, substream, cmd, argp); | |
605 | case __SNDRV_PCM_IOCTL_SYNC_PTR64: | |
606 | #ifdef CONFIG_X86_X32 | |
607 | if (in_x32_syscall()) | |
608 | return snd_pcm_ioctl_sync_ptr_x32(substream, argp); | |
609 | #endif /* CONFIG_X86_X32 */ | |
228af5a4 | 610 | return snd_pcm_ioctl_sync_ptr_buggy(substream, argp); |
1da177e4 LT |
611 | case SNDRV_PCM_IOCTL_HW_REFINE32: |
612 | return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); | |
613 | case SNDRV_PCM_IOCTL_HW_PARAMS32: | |
614 | return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); | |
615 | case SNDRV_PCM_IOCTL_SW_PARAMS32: | |
616 | return snd_pcm_ioctl_sw_params_compat(substream, argp); | |
3ddee7f8 BW |
617 | case SNDRV_PCM_IOCTL_STATUS_COMPAT32: |
618 | return snd_pcm_status_user32(substream, argp, false); | |
619 | case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32: | |
620 | return snd_pcm_status_user32(substream, argp, true); | |
1da177e4 LT |
621 | case SNDRV_PCM_IOCTL_CHANNEL_INFO32: |
622 | return snd_pcm_ioctl_channel_info_compat(substream, argp); | |
623 | case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: | |
624 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
625 | case SNDRV_PCM_IOCTL_READI_FRAMES32: | |
626 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
627 | case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: | |
628 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
629 | case SNDRV_PCM_IOCTL_READN_FRAMES32: | |
630 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
631 | case SNDRV_PCM_IOCTL_DELAY32: | |
632 | return snd_pcm_ioctl_delay_compat(substream, argp); | |
633 | case SNDRV_PCM_IOCTL_REWIND32: | |
634 | return snd_pcm_ioctl_rewind_compat(substream, argp); | |
635 | case SNDRV_PCM_IOCTL_FORWARD32: | |
636 | return snd_pcm_ioctl_forward_compat(substream, argp); | |
3ddee7f8 BW |
637 | case SNDRV_PCM_IOCTL_STATUS_COMPAT64: |
638 | return snd_pcm_status_user_compat64(substream, argp, false); | |
639 | case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64: | |
640 | return snd_pcm_status_user_compat64(substream, argp, true); | |
513ace79 | 641 | #ifdef CONFIG_X86_X32 |
513ace79 TI |
642 | case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: |
643 | return snd_pcm_ioctl_channel_info_x32(substream, argp); | |
644 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
645 | } |
646 | ||
647 | return -ENOIOCTLCMD; | |
648 | } |