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; | |
48 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
49 | err = snd_pcm_playback_rewind(substream, frames); | |
50 | else | |
51 | err = snd_pcm_capture_rewind(substream, frames); | |
52 | if (put_user(err, src)) | |
53 | return -EFAULT; | |
54 | return err < 0 ? err : 0; | |
55 | } | |
56 | ||
877211f5 | 57 | static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
58 | u32 __user *src) |
59 | { | |
60 | snd_pcm_uframes_t frames; | |
61 | int err; | |
62 | ||
63 | if (get_user(frames, src)) | |
64 | return -EFAULT; | |
65 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
66 | err = snd_pcm_playback_forward(substream, frames); | |
67 | else | |
68 | err = snd_pcm_capture_forward(substream, frames); | |
69 | if (put_user(err, src)) | |
70 | return -EFAULT; | |
71 | return err < 0 ? err : 0; | |
72 | } | |
73 | ||
877211f5 | 74 | struct snd_pcm_hw_params32 { |
1da177e4 | 75 | u32 flags; |
877211f5 TI |
76 | struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ |
77 | struct snd_mask mres[5]; /* reserved masks */ | |
78 | struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; | |
79 | struct snd_interval ires[9]; /* reserved intervals */ | |
1da177e4 LT |
80 | u32 rmask; |
81 | u32 cmask; | |
82 | u32 info; | |
83 | u32 msbits; | |
84 | u32 rate_num; | |
85 | u32 rate_den; | |
86 | u32 fifo_size; | |
87 | unsigned char reserved[64]; | |
88 | }; | |
89 | ||
877211f5 | 90 | struct snd_pcm_sw_params32 { |
1da177e4 LT |
91 | s32 tstamp_mode; |
92 | u32 period_step; | |
93 | u32 sleep_min; | |
94 | u32 avail_min; | |
95 | u32 xfer_align; | |
96 | u32 start_threshold; | |
97 | u32 stop_threshold; | |
98 | u32 silence_threshold; | |
99 | u32 silence_size; | |
100 | u32 boundary; | |
e58c295c TI |
101 | u32 proto; |
102 | u32 tstamp_type; | |
103 | unsigned char reserved[56]; | |
1da177e4 LT |
104 | }; |
105 | ||
b2711310 | 106 | /* recalcuate the boundary within 32bit */ |
877211f5 | 107 | static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime) |
b2711310 TI |
108 | { |
109 | snd_pcm_uframes_t boundary; | |
110 | ||
111 | if (! runtime->buffer_size) | |
112 | return 0; | |
113 | boundary = runtime->buffer_size; | |
114 | while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size) | |
115 | boundary *= 2; | |
116 | return boundary; | |
117 | } | |
118 | ||
877211f5 TI |
119 | static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
120 | struct snd_pcm_sw_params32 __user *src) | |
1da177e4 | 121 | { |
877211f5 | 122 | struct snd_pcm_sw_params params; |
b2711310 | 123 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
124 | int err; |
125 | ||
126 | memset(¶ms, 0, sizeof(params)); | |
127 | if (get_user(params.tstamp_mode, &src->tstamp_mode) || | |
128 | get_user(params.period_step, &src->period_step) || | |
129 | get_user(params.sleep_min, &src->sleep_min) || | |
130 | get_user(params.avail_min, &src->avail_min) || | |
131 | get_user(params.xfer_align, &src->xfer_align) || | |
132 | get_user(params.start_threshold, &src->start_threshold) || | |
133 | get_user(params.stop_threshold, &src->stop_threshold) || | |
134 | get_user(params.silence_threshold, &src->silence_threshold) || | |
e58c295c TI |
135 | get_user(params.silence_size, &src->silence_size) || |
136 | get_user(params.tstamp_type, &src->tstamp_type) || | |
137 | get_user(params.proto, &src->proto)) | |
1da177e4 | 138 | return -EFAULT; |
b2711310 TI |
139 | /* |
140 | * Check silent_size parameter. Since we have 64bit boundary, | |
141 | * silence_size must be compared with the 32bit boundary. | |
142 | */ | |
143 | boundary = recalculate_boundary(substream->runtime); | |
144 | if (boundary && params.silence_size >= boundary) | |
145 | params.silence_size = substream->runtime->boundary; | |
1da177e4 LT |
146 | err = snd_pcm_sw_params(substream, ¶ms); |
147 | if (err < 0) | |
148 | return err; | |
7153a558 | 149 | if (boundary && put_user(boundary, &src->boundary)) |
1da177e4 LT |
150 | return -EFAULT; |
151 | return err; | |
152 | } | |
153 | ||
877211f5 | 154 | struct snd_pcm_channel_info32 { |
1da177e4 LT |
155 | u32 channel; |
156 | u32 offset; | |
157 | u32 first; | |
158 | u32 step; | |
159 | }; | |
160 | ||
877211f5 TI |
161 | static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
162 | struct snd_pcm_channel_info32 __user *src) | |
1da177e4 | 163 | { |
877211f5 | 164 | struct snd_pcm_channel_info info; |
1da177e4 LT |
165 | int err; |
166 | ||
167 | if (get_user(info.channel, &src->channel) || | |
168 | get_user(info.offset, &src->offset) || | |
169 | get_user(info.first, &src->first) || | |
170 | get_user(info.step, &src->step)) | |
171 | return -EFAULT; | |
172 | err = snd_pcm_channel_info(substream, &info); | |
173 | if (err < 0) | |
174 | return err; | |
175 | if (put_user(info.channel, &src->channel) || | |
176 | put_user(info.offset, &src->offset) || | |
177 | put_user(info.first, &src->first) || | |
178 | put_user(info.step, &src->step)) | |
179 | return -EFAULT; | |
180 | return err; | |
181 | } | |
182 | ||
513ace79 TI |
183 | #ifdef CONFIG_X86_X32 |
184 | /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ | |
185 | static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, | |
186 | struct snd_pcm_channel_info __user *src); | |
187 | #define snd_pcm_ioctl_channel_info_x32(s, p) \ | |
188 | snd_pcm_channel_info_user(s, p) | |
189 | #endif /* CONFIG_X86_X32 */ | |
190 | ||
877211f5 | 191 | struct snd_pcm_status32 { |
1da177e4 LT |
192 | s32 state; |
193 | struct compat_timespec trigger_tstamp; | |
194 | struct compat_timespec tstamp; | |
195 | u32 appl_ptr; | |
196 | u32 hw_ptr; | |
197 | s32 delay; | |
198 | u32 avail; | |
199 | u32 avail_max; | |
200 | u32 overrange; | |
201 | s32 suspended_state; | |
5442a73a | 202 | u32 audio_tstamp_data; |
4eeaaeae | 203 | struct compat_timespec audio_tstamp; |
5442a73a PLB |
204 | struct compat_timespec driver_tstamp; |
205 | u32 audio_tstamp_accuracy; | |
206 | unsigned char reserved[52-2*sizeof(struct compat_timespec)]; | |
1da177e4 LT |
207 | } __attribute__((packed)); |
208 | ||
209 | ||
877211f5 | 210 | static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream, |
5442a73a PLB |
211 | struct snd_pcm_status32 __user *src, |
212 | bool ext) | |
1da177e4 | 213 | { |
877211f5 | 214 | struct snd_pcm_status status; |
1da177e4 LT |
215 | int err; |
216 | ||
5442a73a PLB |
217 | memset(&status, 0, sizeof(status)); |
218 | /* | |
219 | * with extension, parameters are read/write, | |
220 | * get audio_tstamp_data from user, | |
221 | * ignore rest of status structure | |
222 | */ | |
223 | if (ext && get_user(status.audio_tstamp_data, | |
224 | (u32 __user *)(&src->audio_tstamp_data))) | |
225 | return -EFAULT; | |
1da177e4 LT |
226 | err = snd_pcm_status(substream, &status); |
227 | if (err < 0) | |
228 | return err; | |
229 | ||
317168d0 TI |
230 | if (clear_user(src, sizeof(*src))) |
231 | return -EFAULT; | |
1da177e4 | 232 | if (put_user(status.state, &src->state) || |
4eeaaeae PLB |
233 | compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || |
234 | compat_put_timespec(&status.tstamp, &src->tstamp) || | |
1da177e4 LT |
235 | put_user(status.appl_ptr, &src->appl_ptr) || |
236 | put_user(status.hw_ptr, &src->hw_ptr) || | |
237 | put_user(status.delay, &src->delay) || | |
238 | put_user(status.avail, &src->avail) || | |
239 | put_user(status.avail_max, &src->avail_max) || | |
240 | put_user(status.overrange, &src->overrange) || | |
4eeaaeae | 241 | put_user(status.suspended_state, &src->suspended_state) || |
5442a73a PLB |
242 | put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || |
243 | compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) || | |
244 | compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) || | |
245 | put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) | |
1da177e4 LT |
246 | return -EFAULT; |
247 | ||
248 | return err; | |
249 | } | |
250 | ||
513ace79 TI |
251 | #ifdef CONFIG_X86_X32 |
252 | /* X32 ABI has 64bit timespec and 64bit alignment */ | |
253 | struct snd_pcm_status_x32 { | |
254 | s32 state; | |
255 | u32 rsvd; /* alignment */ | |
256 | struct timespec trigger_tstamp; | |
257 | struct timespec tstamp; | |
258 | u32 appl_ptr; | |
259 | u32 hw_ptr; | |
260 | s32 delay; | |
261 | u32 avail; | |
262 | u32 avail_max; | |
263 | u32 overrange; | |
264 | s32 suspended_state; | |
265 | u32 audio_tstamp_data; | |
266 | struct timespec audio_tstamp; | |
267 | struct timespec driver_tstamp; | |
268 | u32 audio_tstamp_accuracy; | |
269 | unsigned char reserved[52-2*sizeof(struct timespec)]; | |
270 | } __packed; | |
271 | ||
272 | #define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst)) | |
273 | ||
274 | static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream, | |
275 | struct snd_pcm_status_x32 __user *src, | |
276 | bool ext) | |
277 | { | |
278 | struct snd_pcm_status status; | |
279 | int err; | |
280 | ||
281 | memset(&status, 0, sizeof(status)); | |
282 | /* | |
283 | * with extension, parameters are read/write, | |
284 | * get audio_tstamp_data from user, | |
285 | * ignore rest of status structure | |
286 | */ | |
287 | if (ext && get_user(status.audio_tstamp_data, | |
288 | (u32 __user *)(&src->audio_tstamp_data))) | |
289 | return -EFAULT; | |
290 | err = snd_pcm_status(substream, &status); | |
291 | if (err < 0) | |
292 | return err; | |
293 | ||
294 | if (clear_user(src, sizeof(*src))) | |
295 | return -EFAULT; | |
296 | if (put_user(status.state, &src->state) || | |
297 | put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || | |
298 | put_timespec(&status.tstamp, &src->tstamp) || | |
299 | put_user(status.appl_ptr, &src->appl_ptr) || | |
300 | put_user(status.hw_ptr, &src->hw_ptr) || | |
301 | put_user(status.delay, &src->delay) || | |
302 | put_user(status.avail, &src->avail) || | |
303 | put_user(status.avail_max, &src->avail_max) || | |
304 | put_user(status.overrange, &src->overrange) || | |
305 | put_user(status.suspended_state, &src->suspended_state) || | |
306 | put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || | |
307 | put_timespec(&status.audio_tstamp, &src->audio_tstamp) || | |
308 | put_timespec(&status.driver_tstamp, &src->driver_tstamp) || | |
309 | put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) | |
310 | return -EFAULT; | |
311 | ||
312 | return err; | |
313 | } | |
314 | #endif /* CONFIG_X86_X32 */ | |
315 | ||
1da177e4 | 316 | /* both for HW_PARAMS and HW_REFINE */ |
877211f5 | 317 | static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
1da177e4 | 318 | int refine, |
877211f5 | 319 | struct snd_pcm_hw_params32 __user *data32) |
1da177e4 | 320 | { |
877211f5 TI |
321 | struct snd_pcm_hw_params *data; |
322 | struct snd_pcm_runtime *runtime; | |
1da177e4 LT |
323 | int err; |
324 | ||
325 | if (! (runtime = substream->runtime)) | |
326 | return -ENOTTY; | |
327 | ||
43c54b8c NB |
328 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
329 | if (!data) | |
330 | return -ENOMEM; | |
331 | ||
332 | /* only fifo_size (RO from userspace) is different, so just copy all */ | |
333 | if (copy_from_user(data, data32, sizeof(*data32))) { | |
334 | err = -EFAULT; | |
335 | goto error; | |
336 | } | |
ef44a1ec | 337 | |
1da177e4 LT |
338 | if (refine) |
339 | err = snd_pcm_hw_refine(substream, data); | |
340 | else | |
341 | err = snd_pcm_hw_params(substream, data); | |
342 | if (err < 0) | |
343 | goto error; | |
344 | if (copy_to_user(data32, data, sizeof(*data32)) || | |
345 | put_user(data->fifo_size, &data32->fifo_size)) { | |
346 | err = -EFAULT; | |
347 | goto error; | |
348 | } | |
349 | ||
7153a558 TI |
350 | if (! refine) { |
351 | unsigned int new_boundary = recalculate_boundary(runtime); | |
352 | if (new_boundary) | |
353 | runtime->boundary = new_boundary; | |
354 | } | |
1da177e4 LT |
355 | error: |
356 | kfree(data); | |
357 | return err; | |
358 | } | |
359 | ||
360 | ||
361 | /* | |
362 | */ | |
877211f5 | 363 | struct snd_xferi32 { |
1da177e4 LT |
364 | s32 result; |
365 | u32 buf; | |
366 | u32 frames; | |
367 | }; | |
368 | ||
877211f5 TI |
369 | static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
370 | int dir, struct snd_xferi32 __user *data32) | |
1da177e4 LT |
371 | { |
372 | compat_caddr_t buf; | |
373 | u32 frames; | |
374 | int err; | |
375 | ||
376 | if (! substream->runtime) | |
377 | return -ENOTTY; | |
378 | if (substream->stream != dir) | |
379 | return -EINVAL; | |
380 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) | |
381 | return -EBADFD; | |
382 | ||
383 | if (get_user(buf, &data32->buf) || | |
384 | get_user(frames, &data32->frames)) | |
385 | return -EFAULT; | |
386 | ||
387 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
388 | err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); | |
389 | else | |
390 | err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); | |
391 | if (err < 0) | |
392 | return err; | |
393 | /* copy the result */ | |
394 | if (put_user(err, &data32->result)) | |
395 | return -EFAULT; | |
396 | return 0; | |
397 | } | |
398 | ||
399 | ||
400 | /* snd_xfern needs remapping of bufs */ | |
877211f5 | 401 | struct snd_xfern32 { |
1da177e4 LT |
402 | s32 result; |
403 | u32 bufs; /* this is void **; */ | |
404 | u32 frames; | |
405 | }; | |
406 | ||
407 | /* | |
408 | * xfern ioctl nees to copy (up to) 128 pointers on stack. | |
409 | * although we may pass the copied pointers through f_op->ioctl, but the ioctl | |
410 | * handler there expands again the same 128 pointers on stack, so it is better | |
411 | * to handle the function (calling pcm_readv/writev) directly in this handler. | |
412 | */ | |
877211f5 TI |
413 | static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
414 | int dir, struct snd_xfern32 __user *data32) | |
1da177e4 LT |
415 | { |
416 | compat_caddr_t buf; | |
417 | compat_caddr_t __user *bufptr; | |
418 | u32 frames; | |
419 | void __user **bufs; | |
420 | int err, ch, i; | |
421 | ||
422 | if (! substream->runtime) | |
423 | return -ENOTTY; | |
424 | if (substream->stream != dir) | |
425 | return -EINVAL; | |
f13876e2 TI |
426 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) |
427 | return -EBADFD; | |
1da177e4 LT |
428 | |
429 | if ((ch = substream->runtime->channels) > 128) | |
430 | return -EINVAL; | |
431 | if (get_user(buf, &data32->bufs) || | |
432 | get_user(frames, &data32->frames)) | |
433 | return -EFAULT; | |
434 | bufptr = compat_ptr(buf); | |
435 | bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL); | |
436 | if (bufs == NULL) | |
437 | return -ENOMEM; | |
438 | for (i = 0; i < ch; i++) { | |
439 | u32 ptr; | |
440 | if (get_user(ptr, bufptr)) { | |
441 | kfree(bufs); | |
442 | return -EFAULT; | |
443 | } | |
ca9380fd | 444 | bufs[i] = compat_ptr(ptr); |
1da177e4 LT |
445 | bufptr++; |
446 | } | |
447 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
448 | err = snd_pcm_lib_writev(substream, bufs, frames); | |
449 | else | |
450 | err = snd_pcm_lib_readv(substream, bufs, frames); | |
451 | if (err >= 0) { | |
452 | if (put_user(err, &data32->result)) | |
453 | err = -EFAULT; | |
454 | } | |
455 | kfree(bufs); | |
456 | return err; | |
457 | } | |
458 | ||
459 | ||
877211f5 | 460 | struct snd_pcm_mmap_status32 { |
1da177e4 LT |
461 | s32 state; |
462 | s32 pad1; | |
463 | u32 hw_ptr; | |
464 | struct compat_timespec tstamp; | |
465 | s32 suspended_state; | |
4eeaaeae | 466 | struct compat_timespec audio_tstamp; |
1da177e4 LT |
467 | } __attribute__((packed)); |
468 | ||
877211f5 | 469 | struct snd_pcm_mmap_control32 { |
1da177e4 LT |
470 | u32 appl_ptr; |
471 | u32 avail_min; | |
472 | }; | |
473 | ||
877211f5 | 474 | struct snd_pcm_sync_ptr32 { |
1da177e4 LT |
475 | u32 flags; |
476 | union { | |
877211f5 | 477 | struct snd_pcm_mmap_status32 status; |
1da177e4 LT |
478 | unsigned char reserved[64]; |
479 | } s; | |
480 | union { | |
877211f5 | 481 | struct snd_pcm_mmap_control32 control; |
1da177e4 LT |
482 | unsigned char reserved[64]; |
483 | } c; | |
484 | } __attribute__((packed)); | |
485 | ||
877211f5 TI |
486 | static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream, |
487 | struct snd_pcm_sync_ptr32 __user *src) | |
1da177e4 | 488 | { |
877211f5 TI |
489 | struct snd_pcm_runtime *runtime = substream->runtime; |
490 | volatile struct snd_pcm_mmap_status *status; | |
491 | volatile struct snd_pcm_mmap_control *control; | |
1da177e4 | 492 | u32 sflags; |
877211f5 TI |
493 | struct snd_pcm_mmap_control scontrol; |
494 | struct snd_pcm_mmap_status sstatus; | |
b2711310 | 495 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
496 | int err; |
497 | ||
7eaa943c TI |
498 | if (snd_BUG_ON(!runtime)) |
499 | return -EINVAL; | |
1da177e4 LT |
500 | |
501 | if (get_user(sflags, &src->flags) || | |
502 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
503 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
504 | return -EFAULT; | |
505 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
506 | err = snd_pcm_hwsync(substream); | |
507 | if (err < 0) | |
508 | return err; | |
509 | } | |
510 | status = runtime->status; | |
511 | control = runtime->control; | |
b2711310 | 512 | boundary = recalculate_boundary(runtime); |
7153a558 TI |
513 | if (! boundary) |
514 | boundary = 0x7fffffff; | |
1da177e4 | 515 | snd_pcm_stream_lock_irq(substream); |
b2711310 | 516 | /* FIXME: we should consider the boundary for the sync from app */ |
1da177e4 LT |
517 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
518 | control->appl_ptr = scontrol.appl_ptr; | |
519 | else | |
b2711310 | 520 | scontrol.appl_ptr = control->appl_ptr % boundary; |
1da177e4 LT |
521 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
522 | control->avail_min = scontrol.avail_min; | |
523 | else | |
524 | scontrol.avail_min = control->avail_min; | |
525 | sstatus.state = status->state; | |
b2711310 | 526 | sstatus.hw_ptr = status->hw_ptr % boundary; |
1da177e4 LT |
527 | sstatus.tstamp = status->tstamp; |
528 | sstatus.suspended_state = status->suspended_state; | |
4eeaaeae | 529 | sstatus.audio_tstamp = status->audio_tstamp; |
1da177e4 LT |
530 | snd_pcm_stream_unlock_irq(substream); |
531 | if (put_user(sstatus.state, &src->s.status.state) || | |
532 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
4eeaaeae | 533 | compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || |
1da177e4 | 534 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
4eeaaeae PLB |
535 | compat_put_timespec(&sstatus.audio_tstamp, |
536 | &src->s.status.audio_tstamp) || | |
1da177e4 LT |
537 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
538 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
539 | return -EFAULT; | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
513ace79 TI |
544 | #ifdef CONFIG_X86_X32 |
545 | /* X32 ABI has 64bit timespec and 64bit alignment */ | |
546 | struct snd_pcm_mmap_status_x32 { | |
547 | s32 state; | |
548 | s32 pad1; | |
549 | u32 hw_ptr; | |
550 | u32 pad2; /* alignment */ | |
551 | struct timespec tstamp; | |
552 | s32 suspended_state; | |
c9adcdbc | 553 | s32 pad3; |
513ace79 TI |
554 | struct timespec audio_tstamp; |
555 | } __packed; | |
556 | ||
557 | struct snd_pcm_mmap_control_x32 { | |
558 | u32 appl_ptr; | |
559 | u32 avail_min; | |
560 | }; | |
561 | ||
562 | struct snd_pcm_sync_ptr_x32 { | |
563 | u32 flags; | |
564 | u32 rsvd; /* alignment */ | |
565 | union { | |
566 | struct snd_pcm_mmap_status_x32 status; | |
567 | unsigned char reserved[64]; | |
568 | } s; | |
569 | union { | |
570 | struct snd_pcm_mmap_control_x32 control; | |
571 | unsigned char reserved[64]; | |
572 | } c; | |
573 | } __packed; | |
574 | ||
575 | static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, | |
576 | struct snd_pcm_sync_ptr_x32 __user *src) | |
577 | { | |
578 | struct snd_pcm_runtime *runtime = substream->runtime; | |
579 | volatile struct snd_pcm_mmap_status *status; | |
580 | volatile struct snd_pcm_mmap_control *control; | |
581 | u32 sflags; | |
582 | struct snd_pcm_mmap_control scontrol; | |
583 | struct snd_pcm_mmap_status sstatus; | |
584 | snd_pcm_uframes_t boundary; | |
585 | int err; | |
586 | ||
587 | if (snd_BUG_ON(!runtime)) | |
588 | return -EINVAL; | |
589 | ||
590 | if (get_user(sflags, &src->flags) || | |
591 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
592 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
593 | return -EFAULT; | |
594 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
595 | err = snd_pcm_hwsync(substream); | |
596 | if (err < 0) | |
597 | return err; | |
598 | } | |
599 | status = runtime->status; | |
600 | control = runtime->control; | |
601 | boundary = recalculate_boundary(runtime); | |
602 | if (!boundary) | |
603 | boundary = 0x7fffffff; | |
604 | snd_pcm_stream_lock_irq(substream); | |
605 | /* FIXME: we should consider the boundary for the sync from app */ | |
606 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) | |
607 | control->appl_ptr = scontrol.appl_ptr; | |
608 | else | |
609 | scontrol.appl_ptr = control->appl_ptr % boundary; | |
610 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) | |
611 | control->avail_min = scontrol.avail_min; | |
612 | else | |
613 | scontrol.avail_min = control->avail_min; | |
614 | sstatus.state = status->state; | |
615 | sstatus.hw_ptr = status->hw_ptr % boundary; | |
616 | sstatus.tstamp = status->tstamp; | |
617 | sstatus.suspended_state = status->suspended_state; | |
618 | sstatus.audio_tstamp = status->audio_tstamp; | |
619 | snd_pcm_stream_unlock_irq(substream); | |
620 | if (put_user(sstatus.state, &src->s.status.state) || | |
621 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
622 | put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || | |
623 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || | |
624 | put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) || | |
625 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
626 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
627 | return -EFAULT; | |
628 | ||
629 | return 0; | |
630 | } | |
631 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
632 | |
633 | /* | |
634 | */ | |
635 | enum { | |
877211f5 TI |
636 | SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), |
637 | SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), | |
638 | SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), | |
639 | SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32), | |
5442a73a | 640 | SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32), |
1da177e4 | 641 | SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), |
877211f5 | 642 | SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), |
1da177e4 LT |
643 | SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), |
644 | SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), | |
877211f5 TI |
645 | SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), |
646 | SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), | |
647 | SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), | |
648 | SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), | |
649 | SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), | |
513ace79 TI |
650 | #ifdef CONFIG_X86_X32 |
651 | SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), | |
652 | SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32), | |
653 | SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32), | |
654 | SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), | |
655 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
656 | }; |
657 | ||
658 | static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) | |
659 | { | |
877211f5 TI |
660 | struct snd_pcm_file *pcm_file; |
661 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
662 | void __user *argp = compat_ptr(arg); |
663 | ||
664 | pcm_file = file->private_data; | |
665 | if (! pcm_file) | |
666 | return -ENOTTY; | |
667 | substream = pcm_file->substream; | |
668 | if (! substream) | |
669 | return -ENOTTY; | |
670 | ||
671 | /* | |
672 | * When PCM is used on 32bit mode, we need to disable | |
673 | * mmap of PCM status/control records because of the size | |
674 | * incompatibility. | |
675 | */ | |
548a648b | 676 | pcm_file->no_compat_mmap = 1; |
1da177e4 LT |
677 | |
678 | switch (cmd) { | |
679 | case SNDRV_PCM_IOCTL_PVERSION: | |
680 | case SNDRV_PCM_IOCTL_INFO: | |
5a7f2619 | 681 | case SNDRV_PCM_IOCTL_TSTAMP: |
6b587ef9 | 682 | case SNDRV_PCM_IOCTL_TTSTAMP: |
4b671f57 | 683 | case SNDRV_PCM_IOCTL_USER_PVERSION: |
1da177e4 LT |
684 | case SNDRV_PCM_IOCTL_HWSYNC: |
685 | case SNDRV_PCM_IOCTL_PREPARE: | |
686 | case SNDRV_PCM_IOCTL_RESET: | |
687 | case SNDRV_PCM_IOCTL_START: | |
688 | case SNDRV_PCM_IOCTL_DROP: | |
689 | case SNDRV_PCM_IOCTL_DRAIN: | |
690 | case SNDRV_PCM_IOCTL_PAUSE: | |
691 | case SNDRV_PCM_IOCTL_HW_FREE: | |
692 | case SNDRV_PCM_IOCTL_RESUME: | |
693 | case SNDRV_PCM_IOCTL_XRUN: | |
694 | case SNDRV_PCM_IOCTL_LINK: | |
695 | case SNDRV_PCM_IOCTL_UNLINK: | |
67616fed | 696 | return snd_pcm_common_ioctl(file, substream, cmd, argp); |
1da177e4 LT |
697 | case SNDRV_PCM_IOCTL_HW_REFINE32: |
698 | return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); | |
699 | case SNDRV_PCM_IOCTL_HW_PARAMS32: | |
700 | return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); | |
701 | case SNDRV_PCM_IOCTL_SW_PARAMS32: | |
702 | return snd_pcm_ioctl_sw_params_compat(substream, argp); | |
703 | case SNDRV_PCM_IOCTL_STATUS32: | |
5442a73a PLB |
704 | return snd_pcm_status_user_compat(substream, argp, false); |
705 | case SNDRV_PCM_IOCTL_STATUS_EXT32: | |
706 | return snd_pcm_status_user_compat(substream, argp, true); | |
1da177e4 LT |
707 | case SNDRV_PCM_IOCTL_SYNC_PTR32: |
708 | return snd_pcm_ioctl_sync_ptr_compat(substream, argp); | |
709 | case SNDRV_PCM_IOCTL_CHANNEL_INFO32: | |
710 | return snd_pcm_ioctl_channel_info_compat(substream, argp); | |
711 | case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: | |
712 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
713 | case SNDRV_PCM_IOCTL_READI_FRAMES32: | |
714 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
715 | case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: | |
716 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
717 | case SNDRV_PCM_IOCTL_READN_FRAMES32: | |
718 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
719 | case SNDRV_PCM_IOCTL_DELAY32: | |
720 | return snd_pcm_ioctl_delay_compat(substream, argp); | |
721 | case SNDRV_PCM_IOCTL_REWIND32: | |
722 | return snd_pcm_ioctl_rewind_compat(substream, argp); | |
723 | case SNDRV_PCM_IOCTL_FORWARD32: | |
724 | return snd_pcm_ioctl_forward_compat(substream, argp); | |
513ace79 TI |
725 | #ifdef CONFIG_X86_X32 |
726 | case SNDRV_PCM_IOCTL_STATUS_X32: | |
727 | return snd_pcm_status_user_x32(substream, argp, false); | |
728 | case SNDRV_PCM_IOCTL_STATUS_EXT_X32: | |
729 | return snd_pcm_status_user_x32(substream, argp, true); | |
730 | case SNDRV_PCM_IOCTL_SYNC_PTR_X32: | |
731 | return snd_pcm_ioctl_sync_ptr_x32(substream, argp); | |
732 | case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: | |
733 | return snd_pcm_ioctl_channel_info_x32(substream, argp); | |
734 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
735 | } |
736 | ||
737 | return -ENOIOCTLCMD; | |
738 | } |