blob: b48b434444ed0e0239936887a891d15da0054e00 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090024#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Takashi Iwai877211f2005-11-17 13:59:38 +010026static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 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
Takashi Iwai877211f2005-11-17 13:59:38 +010043static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 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
Takashi Iwai877211f2005-11-17 13:59:38 +010060static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 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
Takashi Iwai877211f2005-11-17 13:59:38 +010077struct snd_pcm_hw_params32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 u32 flags;
Takashi Iwai877211f2005-11-17 13:59:38 +010079 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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 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
Takashi Iwai877211f2005-11-17 13:59:38 +010093struct snd_pcm_sw_params32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 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;
Takashi Iwaie58c2952014-07-16 18:07:30 +0200104 u32 proto;
105 u32 tstamp_type;
106 unsigned char reserved[56];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107};
108
Takashi Iwaib2711312005-08-15 15:01:10 +0200109/* recalcuate the boundary within 32bit */
Takashi Iwai877211f2005-11-17 13:59:38 +0100110static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
Takashi Iwaib2711312005-08-15 15:01:10 +0200111{
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
Takashi Iwai877211f2005-11-17 13:59:38 +0100122static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
123 struct snd_pcm_sw_params32 __user *src)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124{
Takashi Iwai877211f2005-11-17 13:59:38 +0100125 struct snd_pcm_sw_params params;
Takashi Iwaib2711312005-08-15 15:01:10 +0200126 snd_pcm_uframes_t boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 int err;
128
129 memset(&params, 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) ||
Takashi Iwaie58c2952014-07-16 18:07:30 +0200138 get_user(params.silence_size, &src->silence_size) ||
139 get_user(params.tstamp_type, &src->tstamp_type) ||
140 get_user(params.proto, &src->proto))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 return -EFAULT;
Takashi Iwaib2711312005-08-15 15:01:10 +0200142 /*
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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 err = snd_pcm_sw_params(substream, &params);
150 if (err < 0)
151 return err;
Takashi Iwai7153a552005-08-25 19:51:47 +0200152 if (boundary && put_user(boundary, &src->boundary))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 return -EFAULT;
154 return err;
155}
156
Takashi Iwai877211f2005-11-17 13:59:38 +0100157struct snd_pcm_channel_info32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 u32 channel;
159 u32 offset;
160 u32 first;
161 u32 step;
162};
163
Takashi Iwai877211f2005-11-17 13:59:38 +0100164static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream,
165 struct snd_pcm_channel_info32 __user *src)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166{
Takashi Iwai877211f2005-11-17 13:59:38 +0100167 struct snd_pcm_channel_info info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 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
Takashi Iwai877211f2005-11-17 13:59:38 +0100186struct snd_pcm_status32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 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;
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600197 u32 audio_tstamp_data;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500198 struct compat_timespec audio_tstamp;
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600199 struct compat_timespec driver_tstamp;
200 u32 audio_tstamp_accuracy;
201 unsigned char reserved[52-2*sizeof(struct compat_timespec)];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202} __attribute__((packed));
203
204
Takashi Iwai877211f2005-11-17 13:59:38 +0100205static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600206 struct snd_pcm_status32 __user *src,
207 bool ext)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208{
Takashi Iwai877211f2005-11-17 13:59:38 +0100209 struct snd_pcm_status status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 int err;
211
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600212 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 err = snd_pcm_status(substream, &status);
222 if (err < 0)
223 return err;
224
Takashi Iwai317168d2014-10-28 12:42:19 +0100225 if (clear_user(src, sizeof(*src)))
226 return -EFAULT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 if (put_user(status.state, &src->state) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500228 compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
229 compat_put_timespec(&status.tstamp, &src->tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 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) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500236 put_user(status.suspended_state, &src->suspended_state) ||
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600237 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))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 return -EFAULT;
242
243 return err;
244}
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246/* both for HW_PARAMS and HW_REFINE */
Takashi Iwai877211f2005-11-17 13:59:38 +0100247static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 int refine,
Takashi Iwai877211f2005-11-17 13:59:38 +0100249 struct snd_pcm_hw_params32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250{
Takashi Iwai877211f2005-11-17 13:59:38 +0100251 struct snd_pcm_hw_params *data;
252 struct snd_pcm_runtime *runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 int err;
254
255 if (! (runtime = substream->runtime))
256 return -ENOTTY;
257
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 /* only fifo_size is different, so just copy all */
Li Zefanef44a1e2009-04-10 09:43:08 +0800259 data = memdup_user(data32, sizeof(*data32));
260 if (IS_ERR(data))
261 return PTR_ERR(data);
262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 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
Takashi Iwai7153a552005-08-25 19:51:47 +0200275 if (! refine) {
276 unsigned int new_boundary = recalculate_boundary(runtime);
277 if (new_boundary)
278 runtime->boundary = new_boundary;
279 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 error:
281 kfree(data);
282 return err;
283}
284
285
286/*
287 */
Takashi Iwai877211f2005-11-17 13:59:38 +0100288struct snd_xferi32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 s32 result;
290 u32 buf;
291 u32 frames;
292};
293
Takashi Iwai877211f2005-11-17 13:59:38 +0100294static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
295 int dir, struct snd_xferi32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296{
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 */
Takashi Iwai877211f2005-11-17 13:59:38 +0100326struct snd_xfern32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 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 */
Takashi Iwai877211f2005-11-17 13:59:38 +0100338static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
339 int dir, struct snd_xfern32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340{
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 }
Julia Lawallca9380f2011-07-28 14:46:05 +0200367 bufs[i] = compat_ptr(ptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 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
Takashi Iwai877211f2005-11-17 13:59:38 +0100383struct snd_pcm_mmap_status32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 s32 state;
385 s32 pad1;
386 u32 hw_ptr;
387 struct compat_timespec tstamp;
388 s32 suspended_state;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500389 struct compat_timespec audio_tstamp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390} __attribute__((packed));
391
Takashi Iwai877211f2005-11-17 13:59:38 +0100392struct snd_pcm_mmap_control32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 u32 appl_ptr;
394 u32 avail_min;
395};
396
Takashi Iwai877211f2005-11-17 13:59:38 +0100397struct snd_pcm_sync_ptr32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 u32 flags;
399 union {
Takashi Iwai877211f2005-11-17 13:59:38 +0100400 struct snd_pcm_mmap_status32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 unsigned char reserved[64];
402 } s;
403 union {
Takashi Iwai877211f2005-11-17 13:59:38 +0100404 struct snd_pcm_mmap_control32 control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 unsigned char reserved[64];
406 } c;
407} __attribute__((packed));
408
Takashi Iwai877211f2005-11-17 13:59:38 +0100409static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
410 struct snd_pcm_sync_ptr32 __user *src)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411{
Takashi Iwai877211f2005-11-17 13:59:38 +0100412 struct snd_pcm_runtime *runtime = substream->runtime;
413 volatile struct snd_pcm_mmap_status *status;
414 volatile struct snd_pcm_mmap_control *control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 u32 sflags;
Takashi Iwai877211f2005-11-17 13:59:38 +0100416 struct snd_pcm_mmap_control scontrol;
417 struct snd_pcm_mmap_status sstatus;
Takashi Iwaib2711312005-08-15 15:01:10 +0200418 snd_pcm_uframes_t boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 int err;
420
Takashi Iwai7eaa9432008-08-08 17:09:09 +0200421 if (snd_BUG_ON(!runtime))
422 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423
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;
Takashi Iwaib2711312005-08-15 15:01:10 +0200435 boundary = recalculate_boundary(runtime);
Takashi Iwai7153a552005-08-25 19:51:47 +0200436 if (! boundary)
437 boundary = 0x7fffffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 snd_pcm_stream_lock_irq(substream);
Takashi Iwaib2711312005-08-15 15:01:10 +0200439 /* FIXME: we should consider the boundary for the sync from app */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
441 control->appl_ptr = scontrol.appl_ptr;
442 else
Takashi Iwaib2711312005-08-15 15:01:10 +0200443 scontrol.appl_ptr = control->appl_ptr % boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 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;
Takashi Iwaib2711312005-08-15 15:01:10 +0200449 sstatus.hw_ptr = status->hw_ptr % boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 sstatus.tstamp = status->tstamp;
451 sstatus.suspended_state = status->suspended_state;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500452 sstatus.audio_tstamp = status->audio_tstamp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 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) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500456 compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500458 compat_put_timespec(&sstatus.audio_tstamp,
459 &src->s.status.audio_tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 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 */
470enum {
Takashi Iwai877211f2005-11-17 13:59:38 +0100471 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),
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600475 SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
Takashi Iwai877211f2005-11-17 13:59:38 +0100477 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
479 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
Takashi Iwai877211f2005-11-17 13:59:38 +0100480 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),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485
486};
487
488static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
489{
Takashi Iwai877211f2005-11-17 13:59:38 +0100490 struct snd_pcm_file *pcm_file;
491 struct snd_pcm_substream *substream;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 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 */
Takashi Iwai548a6482006-07-31 16:51:51 +0200506 pcm_file->no_compat_mmap = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508 switch (cmd) {
509 case SNDRV_PCM_IOCTL_PVERSION:
510 case SNDRV_PCM_IOCTL_INFO:
Takashi Iwai5a7f2612007-12-17 11:44:25 +0100511 case SNDRV_PCM_IOCTL_TSTAMP:
Takashi Iwai6b587ef2007-12-14 12:10:26 +0100512 case SNDRV_PCM_IOCTL_TTSTAMP:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513 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)
Takashi Iwai0df63e42006-04-28 15:13:41 +0200526 return snd_pcm_playback_ioctl1(file, substream, cmd, argp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 else
Takashi Iwai0df63e42006-04-28 15:13:41 +0200528 return snd_pcm_capture_ioctl1(file, substream, cmd, argp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 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:
Pierre-Louis Bossart5442a732015-02-13 15:14:05 -0600536 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 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}