Commit | Line | Data |
---|---|---|
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 | 26 | static 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 | 40 | static 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 | 54 | static 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 | 68 | struct 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 | 84 | struct 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 | 101 | static 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 |
113 | static 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(¶ms, 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, ¶ms); |
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 | 148 | struct snd_pcm_channel_info32 { |
1da177e4 LT |
149 | u32 channel; |
150 | u32 offset; | |
151 | u32 first; | |
152 | u32 step; | |
153 | }; | |
154 | ||
877211f5 TI |
155 | static 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 */ | |
179 | static 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 | 185 | struct 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 | 204 | static 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 */ | |
247 | struct 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 | ||
268 | static 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 | 311 | static 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 | 357 | struct snd_xferi32 { |
1da177e4 LT |
358 | s32 result; |
359 | u32 buf; | |
360 | u32 frames; | |
361 | }; | |
362 | ||
877211f5 TI |
363 | static 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 | 395 | struct 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 |
407 | static 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 | 454 | struct 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 | 463 | struct snd_pcm_mmap_control32 { |
1da177e4 LT |
464 | u32 appl_ptr; |
465 | u32 avail_min; | |
466 | }; | |
467 | ||
877211f5 | 468 | struct 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 |
480 | static 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 */ | |
540 | struct 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 | ||
551 | struct snd_pcm_mmap_control_x32 { | |
552 | u32 appl_ptr; | |
553 | u32 avail_min; | |
554 | }; | |
555 | ||
556 | struct 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 | ||
569 | static 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 | */ | |
629 | enum { | |
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 | ||
652 | static 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 | } |