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; | |
30 | mm_segment_t fs; | |
31 | int err; | |
32 | ||
33 | fs = snd_enter_user(); | |
34 | err = snd_pcm_delay(substream, &delay); | |
35 | snd_leave_user(fs); | |
36 | if (err < 0) | |
37 | return err; | |
38 | if (put_user(delay, src)) | |
39 | return -EFAULT; | |
40 | return err; | |
41 | } | |
42 | ||
877211f5 | 43 | static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
44 | u32 __user *src) |
45 | { | |
46 | snd_pcm_uframes_t frames; | |
47 | int err; | |
48 | ||
49 | if (get_user(frames, src)) | |
50 | return -EFAULT; | |
51 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
52 | err = snd_pcm_playback_rewind(substream, frames); | |
53 | else | |
54 | err = snd_pcm_capture_rewind(substream, frames); | |
55 | if (put_user(err, src)) | |
56 | return -EFAULT; | |
57 | return err < 0 ? err : 0; | |
58 | } | |
59 | ||
877211f5 | 60 | static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream, |
1da177e4 LT |
61 | u32 __user *src) |
62 | { | |
63 | snd_pcm_uframes_t frames; | |
64 | int err; | |
65 | ||
66 | if (get_user(frames, src)) | |
67 | return -EFAULT; | |
68 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
69 | err = snd_pcm_playback_forward(substream, frames); | |
70 | else | |
71 | err = snd_pcm_capture_forward(substream, frames); | |
72 | if (put_user(err, src)) | |
73 | return -EFAULT; | |
74 | return err < 0 ? err : 0; | |
75 | } | |
76 | ||
877211f5 | 77 | struct snd_pcm_hw_params32 { |
1da177e4 | 78 | u32 flags; |
877211f5 TI |
79 | struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */ |
80 | struct snd_mask mres[5]; /* reserved masks */ | |
81 | struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; | |
82 | struct snd_interval ires[9]; /* reserved intervals */ | |
1da177e4 LT |
83 | u32 rmask; |
84 | u32 cmask; | |
85 | u32 info; | |
86 | u32 msbits; | |
87 | u32 rate_num; | |
88 | u32 rate_den; | |
89 | u32 fifo_size; | |
90 | unsigned char reserved[64]; | |
91 | }; | |
92 | ||
877211f5 | 93 | struct snd_pcm_sw_params32 { |
1da177e4 LT |
94 | s32 tstamp_mode; |
95 | u32 period_step; | |
96 | u32 sleep_min; | |
97 | u32 avail_min; | |
98 | u32 xfer_align; | |
99 | u32 start_threshold; | |
100 | u32 stop_threshold; | |
101 | u32 silence_threshold; | |
102 | u32 silence_size; | |
103 | u32 boundary; | |
e58c295c TI |
104 | u32 proto; |
105 | u32 tstamp_type; | |
106 | unsigned char reserved[56]; | |
1da177e4 LT |
107 | }; |
108 | ||
b2711310 | 109 | /* recalcuate the boundary within 32bit */ |
877211f5 | 110 | static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime) |
b2711310 TI |
111 | { |
112 | snd_pcm_uframes_t boundary; | |
113 | ||
114 | if (! runtime->buffer_size) | |
115 | return 0; | |
116 | boundary = runtime->buffer_size; | |
117 | while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size) | |
118 | boundary *= 2; | |
119 | return boundary; | |
120 | } | |
121 | ||
877211f5 TI |
122 | static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream, |
123 | struct snd_pcm_sw_params32 __user *src) | |
1da177e4 | 124 | { |
877211f5 | 125 | struct snd_pcm_sw_params params; |
b2711310 | 126 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
127 | int err; |
128 | ||
129 | memset(¶ms, 0, sizeof(params)); | |
130 | if (get_user(params.tstamp_mode, &src->tstamp_mode) || | |
131 | get_user(params.period_step, &src->period_step) || | |
132 | get_user(params.sleep_min, &src->sleep_min) || | |
133 | get_user(params.avail_min, &src->avail_min) || | |
134 | get_user(params.xfer_align, &src->xfer_align) || | |
135 | get_user(params.start_threshold, &src->start_threshold) || | |
136 | get_user(params.stop_threshold, &src->stop_threshold) || | |
137 | get_user(params.silence_threshold, &src->silence_threshold) || | |
e58c295c TI |
138 | get_user(params.silence_size, &src->silence_size) || |
139 | get_user(params.tstamp_type, &src->tstamp_type) || | |
140 | get_user(params.proto, &src->proto)) | |
1da177e4 | 141 | return -EFAULT; |
b2711310 TI |
142 | /* |
143 | * Check silent_size parameter. Since we have 64bit boundary, | |
144 | * silence_size must be compared with the 32bit boundary. | |
145 | */ | |
146 | boundary = recalculate_boundary(substream->runtime); | |
147 | if (boundary && params.silence_size >= boundary) | |
148 | params.silence_size = substream->runtime->boundary; | |
1da177e4 LT |
149 | err = snd_pcm_sw_params(substream, ¶ms); |
150 | if (err < 0) | |
151 | return err; | |
7153a558 | 152 | if (boundary && put_user(boundary, &src->boundary)) |
1da177e4 LT |
153 | return -EFAULT; |
154 | return err; | |
155 | } | |
156 | ||
877211f5 | 157 | struct snd_pcm_channel_info32 { |
1da177e4 LT |
158 | u32 channel; |
159 | u32 offset; | |
160 | u32 first; | |
161 | u32 step; | |
162 | }; | |
163 | ||
877211f5 TI |
164 | static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream, |
165 | struct snd_pcm_channel_info32 __user *src) | |
1da177e4 | 166 | { |
877211f5 | 167 | struct snd_pcm_channel_info info; |
1da177e4 LT |
168 | int err; |
169 | ||
170 | if (get_user(info.channel, &src->channel) || | |
171 | get_user(info.offset, &src->offset) || | |
172 | get_user(info.first, &src->first) || | |
173 | get_user(info.step, &src->step)) | |
174 | return -EFAULT; | |
175 | err = snd_pcm_channel_info(substream, &info); | |
176 | if (err < 0) | |
177 | return err; | |
178 | if (put_user(info.channel, &src->channel) || | |
179 | put_user(info.offset, &src->offset) || | |
180 | put_user(info.first, &src->first) || | |
181 | put_user(info.step, &src->step)) | |
182 | return -EFAULT; | |
183 | return err; | |
184 | } | |
185 | ||
877211f5 | 186 | struct snd_pcm_status32 { |
1da177e4 LT |
187 | s32 state; |
188 | struct compat_timespec trigger_tstamp; | |
189 | struct compat_timespec tstamp; | |
190 | u32 appl_ptr; | |
191 | u32 hw_ptr; | |
192 | s32 delay; | |
193 | u32 avail; | |
194 | u32 avail_max; | |
195 | u32 overrange; | |
196 | s32 suspended_state; | |
5442a73a | 197 | u32 audio_tstamp_data; |
4eeaaeae | 198 | struct compat_timespec audio_tstamp; |
5442a73a PLB |
199 | struct compat_timespec driver_tstamp; |
200 | u32 audio_tstamp_accuracy; | |
201 | unsigned char reserved[52-2*sizeof(struct compat_timespec)]; | |
1da177e4 LT |
202 | } __attribute__((packed)); |
203 | ||
204 | ||
877211f5 | 205 | static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream, |
5442a73a PLB |
206 | struct snd_pcm_status32 __user *src, |
207 | bool ext) | |
1da177e4 | 208 | { |
877211f5 | 209 | struct snd_pcm_status status; |
1da177e4 LT |
210 | int err; |
211 | ||
5442a73a PLB |
212 | memset(&status, 0, sizeof(status)); |
213 | /* | |
214 | * with extension, parameters are read/write, | |
215 | * get audio_tstamp_data from user, | |
216 | * ignore rest of status structure | |
217 | */ | |
218 | if (ext && get_user(status.audio_tstamp_data, | |
219 | (u32 __user *)(&src->audio_tstamp_data))) | |
220 | return -EFAULT; | |
1da177e4 LT |
221 | err = snd_pcm_status(substream, &status); |
222 | if (err < 0) | |
223 | return err; | |
224 | ||
317168d0 TI |
225 | if (clear_user(src, sizeof(*src))) |
226 | return -EFAULT; | |
1da177e4 | 227 | if (put_user(status.state, &src->state) || |
4eeaaeae PLB |
228 | compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) || |
229 | compat_put_timespec(&status.tstamp, &src->tstamp) || | |
1da177e4 LT |
230 | put_user(status.appl_ptr, &src->appl_ptr) || |
231 | put_user(status.hw_ptr, &src->hw_ptr) || | |
232 | put_user(status.delay, &src->delay) || | |
233 | put_user(status.avail, &src->avail) || | |
234 | put_user(status.avail_max, &src->avail_max) || | |
235 | put_user(status.overrange, &src->overrange) || | |
4eeaaeae | 236 | put_user(status.suspended_state, &src->suspended_state) || |
5442a73a PLB |
237 | put_user(status.audio_tstamp_data, &src->audio_tstamp_data) || |
238 | compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) || | |
239 | compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) || | |
240 | put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy)) | |
1da177e4 LT |
241 | return -EFAULT; |
242 | ||
243 | return err; | |
244 | } | |
245 | ||
1da177e4 | 246 | /* both for HW_PARAMS and HW_REFINE */ |
877211f5 | 247 | static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, |
1da177e4 | 248 | int refine, |
877211f5 | 249 | struct snd_pcm_hw_params32 __user *data32) |
1da177e4 | 250 | { |
877211f5 TI |
251 | struct snd_pcm_hw_params *data; |
252 | struct snd_pcm_runtime *runtime; | |
1da177e4 LT |
253 | int err; |
254 | ||
255 | if (! (runtime = substream->runtime)) | |
256 | return -ENOTTY; | |
257 | ||
1da177e4 | 258 | /* only fifo_size is different, so just copy all */ |
ef44a1ec LZ |
259 | data = memdup_user(data32, sizeof(*data32)); |
260 | if (IS_ERR(data)) | |
261 | return PTR_ERR(data); | |
262 | ||
1da177e4 LT |
263 | if (refine) |
264 | err = snd_pcm_hw_refine(substream, data); | |
265 | else | |
266 | err = snd_pcm_hw_params(substream, data); | |
267 | if (err < 0) | |
268 | goto error; | |
269 | if (copy_to_user(data32, data, sizeof(*data32)) || | |
270 | put_user(data->fifo_size, &data32->fifo_size)) { | |
271 | err = -EFAULT; | |
272 | goto error; | |
273 | } | |
274 | ||
7153a558 TI |
275 | if (! refine) { |
276 | unsigned int new_boundary = recalculate_boundary(runtime); | |
277 | if (new_boundary) | |
278 | runtime->boundary = new_boundary; | |
279 | } | |
1da177e4 LT |
280 | error: |
281 | kfree(data); | |
282 | return err; | |
283 | } | |
284 | ||
285 | ||
286 | /* | |
287 | */ | |
877211f5 | 288 | struct snd_xferi32 { |
1da177e4 LT |
289 | s32 result; |
290 | u32 buf; | |
291 | u32 frames; | |
292 | }; | |
293 | ||
877211f5 TI |
294 | static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream, |
295 | int dir, struct snd_xferi32 __user *data32) | |
1da177e4 LT |
296 | { |
297 | compat_caddr_t buf; | |
298 | u32 frames; | |
299 | int err; | |
300 | ||
301 | if (! substream->runtime) | |
302 | return -ENOTTY; | |
303 | if (substream->stream != dir) | |
304 | return -EINVAL; | |
305 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) | |
306 | return -EBADFD; | |
307 | ||
308 | if (get_user(buf, &data32->buf) || | |
309 | get_user(frames, &data32->frames)) | |
310 | return -EFAULT; | |
311 | ||
312 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
313 | err = snd_pcm_lib_write(substream, compat_ptr(buf), frames); | |
314 | else | |
315 | err = snd_pcm_lib_read(substream, compat_ptr(buf), frames); | |
316 | if (err < 0) | |
317 | return err; | |
318 | /* copy the result */ | |
319 | if (put_user(err, &data32->result)) | |
320 | return -EFAULT; | |
321 | return 0; | |
322 | } | |
323 | ||
324 | ||
325 | /* snd_xfern needs remapping of bufs */ | |
877211f5 | 326 | struct snd_xfern32 { |
1da177e4 LT |
327 | s32 result; |
328 | u32 bufs; /* this is void **; */ | |
329 | u32 frames; | |
330 | }; | |
331 | ||
332 | /* | |
333 | * xfern ioctl nees to copy (up to) 128 pointers on stack. | |
334 | * although we may pass the copied pointers through f_op->ioctl, but the ioctl | |
335 | * handler there expands again the same 128 pointers on stack, so it is better | |
336 | * to handle the function (calling pcm_readv/writev) directly in this handler. | |
337 | */ | |
877211f5 TI |
338 | static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream, |
339 | int dir, struct snd_xfern32 __user *data32) | |
1da177e4 LT |
340 | { |
341 | compat_caddr_t buf; | |
342 | compat_caddr_t __user *bufptr; | |
343 | u32 frames; | |
344 | void __user **bufs; | |
345 | int err, ch, i; | |
346 | ||
347 | if (! substream->runtime) | |
348 | return -ENOTTY; | |
349 | if (substream->stream != dir) | |
350 | return -EINVAL; | |
351 | ||
352 | if ((ch = substream->runtime->channels) > 128) | |
353 | return -EINVAL; | |
354 | if (get_user(buf, &data32->bufs) || | |
355 | get_user(frames, &data32->frames)) | |
356 | return -EFAULT; | |
357 | bufptr = compat_ptr(buf); | |
358 | bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL); | |
359 | if (bufs == NULL) | |
360 | return -ENOMEM; | |
361 | for (i = 0; i < ch; i++) { | |
362 | u32 ptr; | |
363 | if (get_user(ptr, bufptr)) { | |
364 | kfree(bufs); | |
365 | return -EFAULT; | |
366 | } | |
ca9380fd | 367 | bufs[i] = compat_ptr(ptr); |
1da177e4 LT |
368 | bufptr++; |
369 | } | |
370 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
371 | err = snd_pcm_lib_writev(substream, bufs, frames); | |
372 | else | |
373 | err = snd_pcm_lib_readv(substream, bufs, frames); | |
374 | if (err >= 0) { | |
375 | if (put_user(err, &data32->result)) | |
376 | err = -EFAULT; | |
377 | } | |
378 | kfree(bufs); | |
379 | return err; | |
380 | } | |
381 | ||
382 | ||
877211f5 | 383 | struct snd_pcm_mmap_status32 { |
1da177e4 LT |
384 | s32 state; |
385 | s32 pad1; | |
386 | u32 hw_ptr; | |
387 | struct compat_timespec tstamp; | |
388 | s32 suspended_state; | |
4eeaaeae | 389 | struct compat_timespec audio_tstamp; |
1da177e4 LT |
390 | } __attribute__((packed)); |
391 | ||
877211f5 | 392 | struct snd_pcm_mmap_control32 { |
1da177e4 LT |
393 | u32 appl_ptr; |
394 | u32 avail_min; | |
395 | }; | |
396 | ||
877211f5 | 397 | struct snd_pcm_sync_ptr32 { |
1da177e4 LT |
398 | u32 flags; |
399 | union { | |
877211f5 | 400 | struct snd_pcm_mmap_status32 status; |
1da177e4 LT |
401 | unsigned char reserved[64]; |
402 | } s; | |
403 | union { | |
877211f5 | 404 | struct snd_pcm_mmap_control32 control; |
1da177e4 LT |
405 | unsigned char reserved[64]; |
406 | } c; | |
407 | } __attribute__((packed)); | |
408 | ||
877211f5 TI |
409 | static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream, |
410 | struct snd_pcm_sync_ptr32 __user *src) | |
1da177e4 | 411 | { |
877211f5 TI |
412 | struct snd_pcm_runtime *runtime = substream->runtime; |
413 | volatile struct snd_pcm_mmap_status *status; | |
414 | volatile struct snd_pcm_mmap_control *control; | |
1da177e4 | 415 | u32 sflags; |
877211f5 TI |
416 | struct snd_pcm_mmap_control scontrol; |
417 | struct snd_pcm_mmap_status sstatus; | |
b2711310 | 418 | snd_pcm_uframes_t boundary; |
1da177e4 LT |
419 | int err; |
420 | ||
7eaa943c TI |
421 | if (snd_BUG_ON(!runtime)) |
422 | return -EINVAL; | |
1da177e4 LT |
423 | |
424 | if (get_user(sflags, &src->flags) || | |
425 | get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || | |
426 | get_user(scontrol.avail_min, &src->c.control.avail_min)) | |
427 | return -EFAULT; | |
428 | if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) { | |
429 | err = snd_pcm_hwsync(substream); | |
430 | if (err < 0) | |
431 | return err; | |
432 | } | |
433 | status = runtime->status; | |
434 | control = runtime->control; | |
b2711310 | 435 | boundary = recalculate_boundary(runtime); |
7153a558 TI |
436 | if (! boundary) |
437 | boundary = 0x7fffffff; | |
1da177e4 | 438 | snd_pcm_stream_lock_irq(substream); |
b2711310 | 439 | /* FIXME: we should consider the boundary for the sync from app */ |
1da177e4 LT |
440 | if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) |
441 | control->appl_ptr = scontrol.appl_ptr; | |
442 | else | |
b2711310 | 443 | scontrol.appl_ptr = control->appl_ptr % boundary; |
1da177e4 LT |
444 | if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) |
445 | control->avail_min = scontrol.avail_min; | |
446 | else | |
447 | scontrol.avail_min = control->avail_min; | |
448 | sstatus.state = status->state; | |
b2711310 | 449 | sstatus.hw_ptr = status->hw_ptr % boundary; |
1da177e4 LT |
450 | sstatus.tstamp = status->tstamp; |
451 | sstatus.suspended_state = status->suspended_state; | |
4eeaaeae | 452 | sstatus.audio_tstamp = status->audio_tstamp; |
1da177e4 LT |
453 | snd_pcm_stream_unlock_irq(substream); |
454 | if (put_user(sstatus.state, &src->s.status.state) || | |
455 | put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) || | |
4eeaaeae | 456 | compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) || |
1da177e4 | 457 | put_user(sstatus.suspended_state, &src->s.status.suspended_state) || |
4eeaaeae PLB |
458 | compat_put_timespec(&sstatus.audio_tstamp, |
459 | &src->s.status.audio_tstamp) || | |
1da177e4 LT |
460 | put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) || |
461 | put_user(scontrol.avail_min, &src->c.control.avail_min)) | |
462 | return -EFAULT; | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | ||
468 | /* | |
469 | */ | |
470 | enum { | |
877211f5 TI |
471 | SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32), |
472 | SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32), | |
473 | SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32), | |
474 | SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32), | |
5442a73a | 475 | SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32), |
1da177e4 | 476 | SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32), |
877211f5 | 477 | SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32), |
1da177e4 LT |
478 | SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32), |
479 | SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32), | |
877211f5 TI |
480 | SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32), |
481 | SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32), | |
482 | SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32), | |
483 | SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32), | |
484 | SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32), | |
1da177e4 LT |
485 | |
486 | }; | |
487 | ||
488 | static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) | |
489 | { | |
877211f5 TI |
490 | struct snd_pcm_file *pcm_file; |
491 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
492 | void __user *argp = compat_ptr(arg); |
493 | ||
494 | pcm_file = file->private_data; | |
495 | if (! pcm_file) | |
496 | return -ENOTTY; | |
497 | substream = pcm_file->substream; | |
498 | if (! substream) | |
499 | return -ENOTTY; | |
500 | ||
501 | /* | |
502 | * When PCM is used on 32bit mode, we need to disable | |
503 | * mmap of PCM status/control records because of the size | |
504 | * incompatibility. | |
505 | */ | |
548a648b | 506 | pcm_file->no_compat_mmap = 1; |
1da177e4 LT |
507 | |
508 | switch (cmd) { | |
509 | case SNDRV_PCM_IOCTL_PVERSION: | |
510 | case SNDRV_PCM_IOCTL_INFO: | |
5a7f2619 | 511 | case SNDRV_PCM_IOCTL_TSTAMP: |
6b587ef9 | 512 | case SNDRV_PCM_IOCTL_TTSTAMP: |
1da177e4 LT |
513 | case SNDRV_PCM_IOCTL_HWSYNC: |
514 | case SNDRV_PCM_IOCTL_PREPARE: | |
515 | case SNDRV_PCM_IOCTL_RESET: | |
516 | case SNDRV_PCM_IOCTL_START: | |
517 | case SNDRV_PCM_IOCTL_DROP: | |
518 | case SNDRV_PCM_IOCTL_DRAIN: | |
519 | case SNDRV_PCM_IOCTL_PAUSE: | |
520 | case SNDRV_PCM_IOCTL_HW_FREE: | |
521 | case SNDRV_PCM_IOCTL_RESUME: | |
522 | case SNDRV_PCM_IOCTL_XRUN: | |
523 | case SNDRV_PCM_IOCTL_LINK: | |
524 | case SNDRV_PCM_IOCTL_UNLINK: | |
525 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
0df63e44 | 526 | return snd_pcm_playback_ioctl1(file, substream, cmd, argp); |
1da177e4 | 527 | else |
0df63e44 | 528 | return snd_pcm_capture_ioctl1(file, substream, cmd, argp); |
1da177e4 LT |
529 | case SNDRV_PCM_IOCTL_HW_REFINE32: |
530 | return snd_pcm_ioctl_hw_params_compat(substream, 1, argp); | |
531 | case SNDRV_PCM_IOCTL_HW_PARAMS32: | |
532 | return snd_pcm_ioctl_hw_params_compat(substream, 0, argp); | |
533 | case SNDRV_PCM_IOCTL_SW_PARAMS32: | |
534 | return snd_pcm_ioctl_sw_params_compat(substream, argp); | |
535 | case SNDRV_PCM_IOCTL_STATUS32: | |
5442a73a PLB |
536 | return snd_pcm_status_user_compat(substream, argp, false); |
537 | case SNDRV_PCM_IOCTL_STATUS_EXT32: | |
538 | return snd_pcm_status_user_compat(substream, argp, true); | |
1da177e4 LT |
539 | case SNDRV_PCM_IOCTL_SYNC_PTR32: |
540 | return snd_pcm_ioctl_sync_ptr_compat(substream, argp); | |
541 | case SNDRV_PCM_IOCTL_CHANNEL_INFO32: | |
542 | return snd_pcm_ioctl_channel_info_compat(substream, argp); | |
543 | case SNDRV_PCM_IOCTL_WRITEI_FRAMES32: | |
544 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
545 | case SNDRV_PCM_IOCTL_READI_FRAMES32: | |
546 | return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
547 | case SNDRV_PCM_IOCTL_WRITEN_FRAMES32: | |
548 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp); | |
549 | case SNDRV_PCM_IOCTL_READN_FRAMES32: | |
550 | return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp); | |
551 | case SNDRV_PCM_IOCTL_DELAY32: | |
552 | return snd_pcm_ioctl_delay_compat(substream, argp); | |
553 | case SNDRV_PCM_IOCTL_REWIND32: | |
554 | return snd_pcm_ioctl_rewind_compat(substream, argp); | |
555 | case SNDRV_PCM_IOCTL_FORWARD32: | |
556 | return snd_pcm_ioctl_forward_compat(substream, argp); | |
557 | } | |
558 | ||
559 | return -ENOIOCTLCMD; | |
560 | } |