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; | |
1da177e4 | 30 | |
c2c86a97 TI |
31 | delay = snd_pcm_delay(substream); |
32 | if (delay < 0) | |
33 | return delay; | |
1da177e4 LT |
34 | if (put_user(delay, src)) |
35 | return -EFAULT; | |
c2c86a97 | 36 | return 0; |
1da177e4 LT |
37 | } |
38 | ||
877211f5 | 39 | static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
40 | u32 __user *src) |
41 | { | |
42 | snd_pcm_uframes_t frames; | |
43 | int err; | |
44 | ||
45 | if (get_user(frames, src)) | |
46 | return -EFAULT; | |
47 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
48 | err = snd_pcm_playback_rewind(substream, frames); | |
49 | else | |
50 | err = snd_pcm_capture_rewind(substream, frames); | |
51 | if (put_user(err, src)) | |
52 | return -EFAULT; | |
53 | return err < 0 ? err : 0; | |
54 | } | |
55 | ||
877211f5 | 56 | static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
57 | u32 __user *src) |
58 | { | |
59 | snd_pcm_uframes_t frames; | |
60 | int err; | |
61 | ||
62 | if (get_user(frames, src)) | |
63 | return -EFAULT; | |
64 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
65 | err = snd_pcm_playback_forward(substream, frames); | |
66 | else | |
67 | err = snd_pcm_capture_forward(substream, frames); | |
68 | if (put_user(err, src)) | |
69 | return -EFAULT; | |
70 | return err < 0 ? err : 0; | |
71 | } | |
72 | ||
877211f5 | 73 | struct snd_pcm_hw_params32 { |
1da177e4 | 74 | u32 flags; |
877211f5 TI |
75 | struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ |
76 | struct snd_mask mres[5]; /* reserved masks */ | |
77 | struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; | |
78 | struct snd_interval ires[9]; /* reserved intervals */ | |
1da177e4 LT |
79 | u32 rmask; |
80 | u32 cmask; | |
81 | u32 info; | |
82 | u32 msbits; | |
83 | u32 rate_num; | |
84 | u32 rate_den; | |
85 | u32 fifo_size; | |
86 | unsigned char reserved[64]; | |
87 | }; | |
88 | ||
877211f5 | 89 | struct snd_pcm_sw_params32 { |
1da177e4 LT |
90 | s32 tstamp_mode; |
91 | u32 period_step; | |
92 | u32 sleep_min; | |
93 | u32 avail_min; | |
94 | u32 xfer_align; | |
95 | u32 start_threshold; | |
96 | u32 stop_threshold; | |
97 | u32 silence_threshold; | |
98 | u32 silence_size; | |
99 | u32 boundary; | |
e58c295c TI |
100 | u32 proto; |
101 | u32 tstamp_type; | |
102 | unsigned char reserved[56]; | |
1da177e4 LT |
103 | }; |
104 | ||
b2711310 | 105 | /* recalcuate the boundary within 32bit */ |
877211f5 | 106 | static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime) |
b2711310 TI |
107 | { |
108 | snd_pcm_uframes_t boundary; | |
109 | ||
110 | if (! runtime->buffer_size) | |
111 | return 0; | |
112 | boundary = runtime->buffer_size; | |
113 | while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size) | |
114 | boundary *= 2; | |
115 | return boundary; | |
116 | } | |
117 | ||
877211f5 TI |
118 | static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
119 | struct snd_pcm_sw_params32 __user *src) | |
1da177e4 | 120 | { |
877211f5 | 121 | struct snd_pcm_sw_params params; |
b2711310 | 122 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
123 | int err; |
124 | ||
125 | memset(¶ms, 0, sizeof(params)); | |
126 | if (get_user(params.tstamp_mode, &src->tstamp_mode) || | |
127 | get_user(params.period_step, &src->period_step) || | |
128 | get_user(params.sleep_min, &src->sleep_min) || | |
129 | get_user(params.avail_min, &src->avail_min) || | |
130 | get_user(params.xfer_align, &src->xfer_align) || | |
131 | get_user(params.start_threshold, &src->start_threshold) || | |
132 | get_user(params.stop_threshold, &src->stop_threshold) || | |
133 | get_user(params.silence_threshold, &src->silence_threshold) || | |
e58c295c TI |
134 | get_user(params.silence_size, &src->silence_size) || |
135 | get_user(params.tstamp_type, &src->tstamp_type) || | |
136 | get_user(params.proto, &src->proto)) | |
1da177e4 | 137 | return -EFAULT; |
b2711310 TI |
138 | /* |
139 | * Check silent_size parameter. Since we have 64bit boundary, | |
140 | * silence_size must be compared with the 32bit boundary. | |
141 | */ | |
142 | boundary = recalculate_boundary(substream->runtime); | |
143 | if (boundary && params.silence_size >= boundary) | |
144 | params.silence_size = substream->runtime->boundary; | |
1da177e4 LT |
145 | err = snd_pcm_sw_params(substream, ¶ms); |
146 | if (err < 0) | |
147 | return err; | |
7153a558 | 148 | if (boundary && put_user(boundary, &src->boundary)) |
1da177e4 LT |
149 | return -EFAULT; |
150 | return err; | |
151 | } | |
152 | ||
877211f5 | 153 | struct snd_pcm_channel_info32 { |
1da177e4 LT |
154 | u32 channel; |
155 | u32 offset; | |
156 | u32 first; | |
157 | u32 step; | |
158 | }; | |
159 | ||
877211f5 TI |
160 | static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
161 | struct snd_pcm_channel_info32 __user *src) | |
1da177e4 | 162 | { |
877211f5 | 163 | struct snd_pcm_channel_info info; |
1da177e4 LT |
164 | int err; |
165 | ||
166 | if (get_user(info.channel, &src->channel) || | |
167 | get_user(info.offset, &src->offset) || | |
168 | get_user(info.first, &src->first) || | |
169 | get_user(info.step, &src->step)) | |
170 | return -EFAULT; | |
171 | err = snd_pcm_channel_info(substream, &info); | |
172 | if (err < 0) | |
173 | return err; | |
174 | if (put_user(info.channel, &src->channel) || | |
175 | put_user(info.offset, &src->offset) || | |
176 | put_user(info.first, &src->first) || | |
177 | put_user(info.step, &src->step)) | |
178 | return -EFAULT; | |
179 | return err; | |
180 | } | |
181 | ||
513ace79 TI |
182 | #ifdef CONFIG_X86_X32 |
183 | /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */ | |
184 | static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, | |
185 | struct snd_pcm_channel_info __user *src); | |
186 | #define snd_pcm_ioctl_channel_info_x32(s, p) \ | |
187 | snd_pcm_channel_info_user(s, p) | |
188 | #endif /* CONFIG_X86_X32 */ | |
189 | ||
877211f5 | 190 | struct snd_pcm_status32 { |
1da177e4 LT |
191 | s32 state; |
192 | struct compat_timespec trigger_tstamp; | |
193 | struct compat_timespec tstamp; | |
194 | u32 appl_ptr; | |
195 | u32 hw_ptr; | |
196 | s32 delay; | |
197 | u32 avail; | |
198 | u32 avail_max; | |
199 | u32 overrange; | |
200 | s32 suspended_state; | |
5442a73a | 201 | u32 audio_tstamp_data; |
4eeaaeae | 202 | struct compat_timespec audio_tstamp; |
5442a73a PLB |
203 | struct compat_timespec driver_tstamp; |
204 | u32 audio_tstamp_accuracy; | |
205 | unsigned char reserved[52-2*sizeof(struct compat_timespec)]; | |
1da177e4 LT |
206 | } __attribute__((packed)); |
207 | ||
208 | ||
877211f5 | 209 | static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream, |
5442a73a PLB |
210 | struct snd_pcm_status32 __user *src, |
211 | bool ext) | |
1da177e4 | 212 | { |
877211f5 | 213 | struct snd_pcm_status status; |
1da177e4 LT |
214 | int err; |
215 | ||
5442a73a PLB |
216 | memset(&status, 0, sizeof(status)); |
217 | /* | |
218 | * with extension, parameters are read/write, | |
219 | * get audio_tstamp_data from user, | |
220 | * ignore rest of status structure | |
221 | */ | |
222 | if (ext && get_user(status.audio_tstamp_data, | |
223 | (u32 __user *)(&src->audio_tstamp_data))) | |
224 | return -EFAULT; | |
1da177e4 LT |
225 | err = snd_pcm_status(substream, &status); |
226 | if (err < 0) | |
227 | return err; | |
228 | ||
317168d0 TI |
229 | if (clear_user(src, sizeof(*src))) |
230 | return -EFAULT; | |
1da177e4 | 231 | if (put_user(status.state, &src->state) || |
4eeaaeae PLB |
232 | compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || |
233 | compat_put_timespec(&status.tstamp, &src->tstamp) || | |
1da177e4 LT |
234 | put_user(status.appl_ptr, &src->appl_ptr) || |
235 | put_user(status.hw_ptr, &src->hw_ptr) || | |
236 | put_user(status.delay, &src->delay) || | |
237 | put_user(status.avail, &src->avail) || | |
238 | put_user(status.avail_max, &src->avail_max) || | |
239 | put_user(status.overrange, &src->overrange) || | |
4eeaaeae | 240 | put_user(status.suspended_state, &src->suspended_state) || |
5442a73a PLB |
241 | put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || |
242 | compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) || | |
243 | compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) || | |
244 | put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) | |
1da177e4 LT |
245 | return -EFAULT; |
246 | ||
247 | return err; | |
248 | } | |
249 | ||
513ace79 TI |
250 | #ifdef CONFIG_X86_X32 |
251 | /* X32 ABI has 64bit timespec and 64bit alignment */ | |
252 | struct snd_pcm_status_x32 { | |
253 | s32 state; | |
254 | u32 rsvd; /* alignment */ | |
255 | struct timespec trigger_tstamp; | |
256 | struct timespec tstamp; | |
257 | u32 appl_ptr; | |
258 | u32 hw_ptr; | |
259 | s32 delay; | |
260 | u32 avail; | |
261 | u32 avail_max; | |
262 | u32 overrange; | |
263 | s32 suspended_state; | |
264 | u32 audio_tstamp_data; | |
265 | struct timespec audio_tstamp; | |
266 | struct timespec driver_tstamp; | |
267 | u32 audio_tstamp_accuracy; | |
268 | unsigned char reserved[52-2*sizeof(struct timespec)]; | |
269 | } __packed; | |
270 | ||
271 | #define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst)) | |
272 | ||
273 | static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream, | |
274 | struct snd_pcm_status_x32 __user *src, | |
275 | bool ext) | |
276 | { | |
277 | struct snd_pcm_status status; | |
278 | int err; | |
279 | ||
280 | memset(&status, 0, sizeof(status)); | |
281 | /* | |
282 | * with extension, parameters are read/write, | |
283 | * get audio_tstamp_data from user, | |
284 | * ignore rest of status structure | |
285 | */ | |
286 | if (ext && get_user(status.audio_tstamp_data, | |
287 | (u32 __user *)(&src->audio_tstamp_data))) | |
288 | return -EFAULT; | |
289 | err = snd_pcm_status(substream, &status); | |
290 | if (err < 0) | |
291 | return err; | |
292 | ||
293 | if (clear_user(src, sizeof(*src))) | |
294 | return -EFAULT; | |
295 | if (put_user(status.state, &src->state) || | |
296 | put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || | |
297 | put_timespec(&status.tstamp, &src->tstamp) || | |
298 | put_user(status.appl_ptr, &src->appl_ptr) || | |
299 | put_user(status.hw_ptr, &src->hw_ptr) || | |
300 | put_user(status.delay, &src->delay) || | |
301 | put_user(status.avail, &src->avail) || | |
302 | put_user(status.avail_max, &src->avail_max) || | |
303 | put_user(status.overrange, &src->overrange) || | |
304 | put_user(status.suspended_state, &src->suspended_state) || | |
305 | put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || | |
306 | put_timespec(&status.audio_tstamp, &src->audio_tstamp) || | |
307 | put_timespec(&status.driver_tstamp, &src->driver_tstamp) || | |
308 | put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) | |
309 | return -EFAULT; | |
310 | ||
311 | return err; | |
312 | } | |
313 | #endif /* CONFIG_X86_X32 */ | |
314 | ||
1da177e4 | 315 | /* both for HW_PARAMS and HW_REFINE */ |
877211f5 | 316 | static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
1da177e4 | 317 | int refine, |
877211f5 | 318 | struct snd_pcm_hw_params32 __user *data32) |
1da177e4 | 319 | { |
877211f5 TI |
320 | struct snd_pcm_hw_params *data; |
321 | struct snd_pcm_runtime *runtime; | |
1da177e4 LT |
322 | int err; |
323 | ||
324 | if (! (runtime = substream->runtime)) | |
325 | return -ENOTTY; | |
326 | ||
43c54b8c NB |
327 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
328 | if (!data) | |
329 | return -ENOMEM; | |
330 | ||
331 | /* only fifo_size (RO from userspace) is different, so just copy all */ | |
332 | if (copy_from_user(data, data32, sizeof(*data32))) { | |
333 | err = -EFAULT; | |
334 | goto error; | |
335 | } | |
ef44a1ec | 336 | |
1da177e4 LT |
337 | if (refine) |
338 | err = snd_pcm_hw_refine(substream, data); | |
339 | else | |
340 | err = snd_pcm_hw_params(substream, data); | |
341 | if (err < 0) | |
342 | goto error; | |
343 | if (copy_to_user(data32, data, sizeof(*data32)) || | |
344 | put_user(data->fifo_size, &data32->fifo_size)) { | |
345 | err = -EFAULT; | |
346 | goto error; | |
347 | } | |
348 | ||
7153a558 TI |
349 | if (! refine) { |
350 | unsigned int new_boundary = recalculate_boundary(runtime); | |
351 | if (new_boundary) | |
352 | runtime->boundary = new_boundary; | |
353 | } | |
1da177e4 LT |
354 | error: |
355 | kfree(data); | |
356 | return err; | |
357 | } | |
358 | ||
359 | ||
360 | /* | |
361 | */ | |
877211f5 | 362 | struct snd_xferi32 { |
1da177e4 LT |
363 | s32 result; |
364 | u32 buf; | |
365 | u32 frames; | |
366 | }; | |
367 | ||
877211f5 TI |
368 | static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
369 | int dir, struct snd_xferi32 __user *data32) | |
1da177e4 LT |
370 | { |
371 | compat_caddr_t buf; | |
372 | u32 frames; | |
373 | int err; | |
374 | ||
375 | if (! substream->runtime) | |
376 | return -ENOTTY; | |
377 | if (substream->stream != dir) | |
378 | return -EINVAL; | |
379 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) | |
380 | return -EBADFD; | |
381 | ||
382 | if (get_user(buf, &data32->buf) || | |
383 | get_user(frames, &data32->frames)) | |
384 | return -EFAULT; | |
385 | ||
386 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
387 | err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); | |
388 | else | |
389 | err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); | |
390 | if (err < 0) | |
391 | return err; | |
392 | /* copy the result */ | |
393 | if (put_user(err, &data32->result)) | |
394 | return -EFAULT; | |
395 | return 0; | |
396 | } | |
397 | ||
398 | ||
399 | /* snd_xfern needs remapping of bufs */ | |
877211f5 | 400 | struct snd_xfern32 { |
1da177e4 LT |
401 | s32 result; |
402 | u32 bufs; /* this is void **; */ | |
403 | u32 frames; | |
404 | }; | |
405 | ||
406 | /* | |
407 | * xfern ioctl nees to copy (up to) 128 pointers on stack. | |
408 | * although we may pass the copied pointers through f_op->ioctl, but the ioctl | |
409 | * handler there expands again the same 128 pointers on stack, so it is better | |
410 | * to handle the function (calling pcm_readv/writev) directly in this handler. | |
411 | */ | |
877211f5 TI |
412 | static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
413 | int dir, struct snd_xfern32 __user *data32) | |
1da177e4 LT |
414 | { |
415 | compat_caddr_t buf; | |
416 | compat_caddr_t __user *bufptr; | |
417 | u32 frames; | |
418 | void __user **bufs; | |
419 | int err, ch, i; | |
420 | ||
421 | if (! substream->runtime) | |
422 | return -ENOTTY; | |
423 | if (substream->stream != dir) | |
424 | return -EINVAL; | |
425 | ||
426 | if ((ch = substream->runtime->channels) > 128) | |
427 | return -EINVAL; | |
428 | if (get_user(buf, &data32->bufs) || | |
429 | get_user(frames, &data32->frames)) | |
430 | return -EFAULT; | |
431 | bufptr = compat_ptr(buf); | |
432 | bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL); | |
433 | if (bufs == NULL) | |
434 | return -ENOMEM; | |
435 | for (i = 0; i < ch; i++) { | |
436 | u32 ptr; | |
437 | if (get_user(ptr, bufptr)) { | |
438 | kfree(bufs); | |
439 | return -EFAULT; | |
440 | } | |
ca9380fd | 441 | bufs[i] = compat_ptr(ptr); |
1da177e4 LT |
442 | bufptr++; |
443 | } | |
444 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
445 | err = snd_pcm_lib_writev(substream, bufs, frames); | |
446 | else | |
447 | err = snd_pcm_lib_readv(substream, bufs, frames); | |
448 | if (err >= 0) { | |
449 | if (put_user(err, &data32->result)) | |
450 | err = -EFAULT; | |
451 | } | |
452 | kfree(bufs); | |
453 | return err; | |
454 | } | |
455 | ||
456 | ||
877211f5 | 457 | struct snd_pcm_mmap_status32 { |
1da177e4 LT |
458 | s32 state; |
459 | s32 pad1; | |
460 | u32 hw_ptr; | |
461 | struct compat_timespec tstamp; | |
462 | s32 suspended_state; | |
4eeaaeae | 463 | struct compat_timespec audio_tstamp; |
1da177e4 LT |
464 | } __attribute__((packed)); |
465 | ||
877211f5 | 466 | struct snd_pcm_mmap_control32 { |
1da177e4 LT |
467 | u32 appl_ptr; |
468 | u32 avail_min; | |
469 | }; | |
470 | ||
877211f5 | 471 | struct snd_pcm_sync_ptr32 { |
1da177e4 LT |
472 | u32 flags; |
473 | union { | |
877211f5 | 474 | struct snd_pcm_mmap_status32 status; |
1da177e4 LT |
475 | unsigned char reserved[64]; |
476 | } s; | |
477 | union { | |
877211f5 | 478 | struct snd_pcm_mmap_control32 control; |
1da177e4 LT |
479 | unsigned char reserved[64]; |
480 | } c; | |
481 | } __attribute__((packed)); | |
482 | ||
877211f5 TI |
483 | static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream, |
484 | struct snd_pcm_sync_ptr32 __user *src) | |
1da177e4 | 485 | { |
877211f5 TI |
486 | struct snd_pcm_runtime *runtime = substream->runtime; |
487 | volatile struct snd_pcm_mmap_status *status; | |
488 | volatile struct snd_pcm_mmap_control *control; | |
1da177e4 | 489 | u32 sflags; |
877211f5 TI |
490 | struct snd_pcm_mmap_control scontrol; |
491 | struct snd_pcm_mmap_status sstatus; | |
b2711310 | 492 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
493 | int err; |
494 | ||
7eaa943c TI |
495 | if (snd_BUG_ON(!runtime)) |
496 | return -EINVAL; | |
1da177e4 LT |
497 | |
498 | if (get_user(sflags, &src->flags) || | |
499 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
500 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
501 | return -EFAULT; | |
502 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
503 | err = snd_pcm_hwsync(substream); | |
504 | if (err < 0) | |
505 | return err; | |
506 | } | |
507 | status = runtime->status; | |
508 | control = runtime->control; | |
b2711310 | 509 | boundary = recalculate_boundary(runtime); |
7153a558 TI |
510 | if (! boundary) |
511 | boundary = 0x7fffffff; | |
1da177e4 | 512 | snd_pcm_stream_lock_irq(substream); |
b2711310 | 513 | /* FIXME: we should consider the boundary for the sync from app */ |
1da177e4 LT |
514 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
515 | control->appl_ptr = scontrol.appl_ptr; | |
516 | else | |
b2711310 | 517 | scontrol.appl_ptr = control->appl_ptr % boundary; |
1da177e4 LT |
518 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
519 | control->avail_min = scontrol.avail_min; | |
520 | else | |
521 | scontrol.avail_min = control->avail_min; | |
522 | sstatus.state = status->state; | |
b2711310 | 523 | sstatus.hw_ptr = status->hw_ptr % boundary; |
1da177e4 LT |
524 | sstatus.tstamp = status->tstamp; |
525 | sstatus.suspended_state = status->suspended_state; | |
4eeaaeae | 526 | sstatus.audio_tstamp = status->audio_tstamp; |
1da177e4 LT |
527 | snd_pcm_stream_unlock_irq(substream); |
528 | if (put_user(sstatus.state, &src->s.status.state) || | |
529 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
4eeaaeae | 530 | compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || |
1da177e4 | 531 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
4eeaaeae PLB |
532 | compat_put_timespec(&sstatus.audio_tstamp, |
533 | &src->s.status.audio_tstamp) || | |
1da177e4 LT |
534 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
535 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
536 | return -EFAULT; | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
513ace79 TI |
541 | #ifdef CONFIG_X86_X32 |
542 | /* X32 ABI has 64bit timespec and 64bit alignment */ | |
543 | struct snd_pcm_mmap_status_x32 { | |
544 | s32 state; | |
545 | s32 pad1; | |
546 | u32 hw_ptr; | |
547 | u32 pad2; /* alignment */ | |
548 | struct timespec tstamp; | |
549 | s32 suspended_state; | |
550 | struct timespec audio_tstamp; | |
551 | } __packed; | |
552 | ||
553 | struct snd_pcm_mmap_control_x32 { | |
554 | u32 appl_ptr; | |
555 | u32 avail_min; | |
556 | }; | |
557 | ||
558 | struct snd_pcm_sync_ptr_x32 { | |
559 | u32 flags; | |
560 | u32 rsvd; /* alignment */ | |
561 | union { | |
562 | struct snd_pcm_mmap_status_x32 status; | |
563 | unsigned char reserved[64]; | |
564 | } s; | |
565 | union { | |
566 | struct snd_pcm_mmap_control_x32 control; | |
567 | unsigned char reserved[64]; | |
568 | } c; | |
569 | } __packed; | |
570 | ||
571 | static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, | |
572 | struct snd_pcm_sync_ptr_x32 __user *src) | |
573 | { | |
574 | struct snd_pcm_runtime *runtime = substream->runtime; | |
575 | volatile struct snd_pcm_mmap_status *status; | |
576 | volatile struct snd_pcm_mmap_control *control; | |
577 | u32 sflags; | |
578 | struct snd_pcm_mmap_control scontrol; | |
579 | struct snd_pcm_mmap_status sstatus; | |
580 | snd_pcm_uframes_t boundary; | |
581 | int err; | |
582 | ||
583 | if (snd_BUG_ON(!runtime)) | |
584 | return -EINVAL; | |
585 | ||
586 | if (get_user(sflags, &src->flags) || | |
587 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
588 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
589 | return -EFAULT; | |
590 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
591 | err = snd_pcm_hwsync(substream); | |
592 | if (err < 0) | |
593 | return err; | |
594 | } | |
595 | status = runtime->status; | |
596 | control = runtime->control; | |
597 | boundary = recalculate_boundary(runtime); | |
598 | if (!boundary) | |
599 | boundary = 0x7fffffff; | |
600 | snd_pcm_stream_lock_irq(substream); | |
601 | /* FIXME: we should consider the boundary for the sync from app */ | |
602 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) | |
603 | control->appl_ptr = scontrol.appl_ptr; | |
604 | else | |
605 | scontrol.appl_ptr = control->appl_ptr % boundary; | |
606 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) | |
607 | control->avail_min = scontrol.avail_min; | |
608 | else | |
609 | scontrol.avail_min = control->avail_min; | |
610 | sstatus.state = status->state; | |
611 | sstatus.hw_ptr = status->hw_ptr % boundary; | |
612 | sstatus.tstamp = status->tstamp; | |
613 | sstatus.suspended_state = status->suspended_state; | |
614 | sstatus.audio_tstamp = status->audio_tstamp; | |
615 | snd_pcm_stream_unlock_irq(substream); | |
616 | if (put_user(sstatus.state, &src->s.status.state) || | |
617 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
618 | put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || | |
619 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || | |
620 | put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) || | |
621 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
622 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
623 | return -EFAULT; | |
624 | ||
625 | return 0; | |
626 | } | |
627 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
628 | |
629 | /* | |
630 | */ | |
631 | enum { | |
877211f5 TI |
632 | SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), |
633 | SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), | |
634 | SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), | |
635 | SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32), | |
5442a73a | 636 | SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32), |
1da177e4 | 637 | SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), |
877211f5 | 638 | SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), |
1da177e4 LT |
639 | SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), |
640 | SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), | |
877211f5 TI |
641 | SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), |
642 | SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), | |
643 | SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), | |
644 | SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), | |
645 | SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), | |
513ace79 TI |
646 | #ifdef CONFIG_X86_X32 |
647 | SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info), | |
648 | SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32), | |
649 | SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32), | |
650 | SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32), | |
651 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
652 | }; |
653 | ||
654 | static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) | |
655 | { | |
877211f5 TI |
656 | struct snd_pcm_file *pcm_file; |
657 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
658 | void __user *argp = compat_ptr(arg); |
659 | ||
660 | pcm_file = file->private_data; | |
661 | if (! pcm_file) | |
662 | return -ENOTTY; | |
663 | substream = pcm_file->substream; | |
664 | if (! substream) | |
665 | return -ENOTTY; | |
666 | ||
667 | /* | |
668 | * When PCM is used on 32bit mode, we need to disable | |
669 | * mmap of PCM status/control records because of the size | |
670 | * incompatibility. | |
671 | */ | |
548a648b | 672 | pcm_file->no_compat_mmap = 1; |
1da177e4 LT |
673 | |
674 | switch (cmd) { | |
675 | case SNDRV_PCM_IOCTL_PVERSION: | |
676 | case SNDRV_PCM_IOCTL_INFO: | |
5a7f2619 | 677 | case SNDRV_PCM_IOCTL_TSTAMP: |
6b587ef9 | 678 | case SNDRV_PCM_IOCTL_TTSTAMP: |
4b671f57 | 679 | case SNDRV_PCM_IOCTL_USER_PVERSION: |
1da177e4 LT |
680 | case SNDRV_PCM_IOCTL_HWSYNC: |
681 | case SNDRV_PCM_IOCTL_PREPARE: | |
682 | case SNDRV_PCM_IOCTL_RESET: | |
683 | case SNDRV_PCM_IOCTL_START: | |
684 | case SNDRV_PCM_IOCTL_DROP: | |
685 | case SNDRV_PCM_IOCTL_DRAIN: | |
686 | case SNDRV_PCM_IOCTL_PAUSE: | |
687 | case SNDRV_PCM_IOCTL_HW_FREE: | |
688 | case SNDRV_PCM_IOCTL_RESUME: | |
689 | case SNDRV_PCM_IOCTL_XRUN: | |
690 | case SNDRV_PCM_IOCTL_LINK: | |
691 | case SNDRV_PCM_IOCTL_UNLINK: | |
67616fed | 692 | return snd_pcm_common_ioctl(file, substream, cmd, argp); |
1da177e4 LT |
693 | case SNDRV_PCM_IOCTL_HW_REFINE32: |
694 | return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); | |
695 | case SNDRV_PCM_IOCTL_HW_PARAMS32: | |
696 | return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); | |
697 | case SNDRV_PCM_IOCTL_SW_PARAMS32: | |
698 | return snd_pcm_ioctl_sw_params_compat(substream, argp); | |
699 | case SNDRV_PCM_IOCTL_STATUS32: | |
5442a73a PLB |
700 | return snd_pcm_status_user_compat(substream, argp, false); |
701 | case SNDRV_PCM_IOCTL_STATUS_EXT32: | |
702 | return snd_pcm_status_user_compat(substream, argp, true); | |
1da177e4 LT |
703 | case SNDRV_PCM_IOCTL_SYNC_PTR32: |
704 | return snd_pcm_ioctl_sync_ptr_compat(substream, argp); | |
705 | case SNDRV_PCM_IOCTL_CHANNEL_INFO32: | |
706 | return snd_pcm_ioctl_channel_info_compat(substream, argp); | |
707 | case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: | |
708 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
709 | case SNDRV_PCM_IOCTL_READI_FRAMES32: | |
710 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
711 | case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: | |
712 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
713 | case SNDRV_PCM_IOCTL_READN_FRAMES32: | |
714 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
715 | case SNDRV_PCM_IOCTL_DELAY32: | |
716 | return snd_pcm_ioctl_delay_compat(substream, argp); | |
717 | case SNDRV_PCM_IOCTL_REWIND32: | |
718 | return snd_pcm_ioctl_rewind_compat(substream, argp); | |
719 | case SNDRV_PCM_IOCTL_FORWARD32: | |
720 | return snd_pcm_ioctl_forward_compat(substream, argp); | |
513ace79 TI |
721 | #ifdef CONFIG_X86_X32 |
722 | case SNDRV_PCM_IOCTL_STATUS_X32: | |
723 | return snd_pcm_status_user_x32(substream, argp, false); | |
724 | case SNDRV_PCM_IOCTL_STATUS_EXT_X32: | |
725 | return snd_pcm_status_user_x32(substream, argp, true); | |
726 | case SNDRV_PCM_IOCTL_SYNC_PTR_X32: | |
727 | return snd_pcm_ioctl_sync_ptr_x32(substream, argp); | |
728 | case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32: | |
729 | return snd_pcm_ioctl_channel_info_x32(substream, argp); | |
730 | #endif /* CONFIG_X86_X32 */ | |
1da177e4 LT |
731 | } |
732 | ||
733 | return -ENOIOCTLCMD; | |
734 | } |