blob: 102e8fd1d4505416ece1d42333cd8270b76cb395 [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;
Clemens Ladisch9c7066a2012-10-27 21:55:27 +0200197 u32 reserved_alignment;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500198 struct compat_timespec audio_tstamp;
Clemens Ladisch9c7066a2012-10-27 21:55:27 +0200199 unsigned char reserved[56-sizeof(struct compat_timespec)];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200} __attribute__((packed));
201
202
Takashi Iwai877211f2005-11-17 13:59:38 +0100203static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
204 struct snd_pcm_status32 __user *src)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205{
Takashi Iwai877211f2005-11-17 13:59:38 +0100206 struct snd_pcm_status status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 int err;
208
209 err = snd_pcm_status(substream, &status);
210 if (err < 0)
211 return err;
212
213 if (put_user(status.state, &src->state) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500214 compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
215 compat_put_timespec(&status.tstamp, &src->tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 put_user(status.appl_ptr, &src->appl_ptr) ||
217 put_user(status.hw_ptr, &src->hw_ptr) ||
218 put_user(status.delay, &src->delay) ||
219 put_user(status.avail, &src->avail) ||
220 put_user(status.avail_max, &src->avail_max) ||
221 put_user(status.overrange, &src->overrange) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500222 put_user(status.suspended_state, &src->suspended_state) ||
223 compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 return -EFAULT;
225
226 return err;
227}
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229/* both for HW_PARAMS and HW_REFINE */
Takashi Iwai877211f2005-11-17 13:59:38 +0100230static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 int refine,
Takashi Iwai877211f2005-11-17 13:59:38 +0100232 struct snd_pcm_hw_params32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233{
Takashi Iwai877211f2005-11-17 13:59:38 +0100234 struct snd_pcm_hw_params *data;
235 struct snd_pcm_runtime *runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 int err;
237
238 if (! (runtime = substream->runtime))
239 return -ENOTTY;
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 /* only fifo_size is different, so just copy all */
Li Zefanef44a1e2009-04-10 09:43:08 +0800242 data = memdup_user(data32, sizeof(*data32));
243 if (IS_ERR(data))
244 return PTR_ERR(data);
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 if (refine)
247 err = snd_pcm_hw_refine(substream, data);
248 else
249 err = snd_pcm_hw_params(substream, data);
250 if (err < 0)
251 goto error;
252 if (copy_to_user(data32, data, sizeof(*data32)) ||
253 put_user(data->fifo_size, &data32->fifo_size)) {
254 err = -EFAULT;
255 goto error;
256 }
257
Takashi Iwai7153a552005-08-25 19:51:47 +0200258 if (! refine) {
259 unsigned int new_boundary = recalculate_boundary(runtime);
260 if (new_boundary)
261 runtime->boundary = new_boundary;
262 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 error:
264 kfree(data);
265 return err;
266}
267
268
269/*
270 */
Takashi Iwai877211f2005-11-17 13:59:38 +0100271struct snd_xferi32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 s32 result;
273 u32 buf;
274 u32 frames;
275};
276
Takashi Iwai877211f2005-11-17 13:59:38 +0100277static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
278 int dir, struct snd_xferi32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279{
280 compat_caddr_t buf;
281 u32 frames;
282 int err;
283
284 if (! substream->runtime)
285 return -ENOTTY;
286 if (substream->stream != dir)
287 return -EINVAL;
288 if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
289 return -EBADFD;
290
291 if (get_user(buf, &data32->buf) ||
292 get_user(frames, &data32->frames))
293 return -EFAULT;
294
295 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
296 err = snd_pcm_lib_write(substream, compat_ptr(buf), frames);
297 else
298 err = snd_pcm_lib_read(substream, compat_ptr(buf), frames);
299 if (err < 0)
300 return err;
301 /* copy the result */
302 if (put_user(err, &data32->result))
303 return -EFAULT;
304 return 0;
305}
306
307
308/* snd_xfern needs remapping of bufs */
Takashi Iwai877211f2005-11-17 13:59:38 +0100309struct snd_xfern32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 s32 result;
311 u32 bufs; /* this is void **; */
312 u32 frames;
313};
314
315/*
316 * xfern ioctl nees to copy (up to) 128 pointers on stack.
317 * although we may pass the copied pointers through f_op->ioctl, but the ioctl
318 * handler there expands again the same 128 pointers on stack, so it is better
319 * to handle the function (calling pcm_readv/writev) directly in this handler.
320 */
Takashi Iwai877211f2005-11-17 13:59:38 +0100321static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
322 int dir, struct snd_xfern32 __user *data32)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323{
324 compat_caddr_t buf;
325 compat_caddr_t __user *bufptr;
326 u32 frames;
327 void __user **bufs;
328 int err, ch, i;
329
330 if (! substream->runtime)
331 return -ENOTTY;
332 if (substream->stream != dir)
333 return -EINVAL;
334
335 if ((ch = substream->runtime->channels) > 128)
336 return -EINVAL;
337 if (get_user(buf, &data32->bufs) ||
338 get_user(frames, &data32->frames))
339 return -EFAULT;
340 bufptr = compat_ptr(buf);
341 bufs = kmalloc(sizeof(void __user *) * ch, GFP_KERNEL);
342 if (bufs == NULL)
343 return -ENOMEM;
344 for (i = 0; i < ch; i++) {
345 u32 ptr;
346 if (get_user(ptr, bufptr)) {
347 kfree(bufs);
348 return -EFAULT;
349 }
Julia Lawallca9380f2011-07-28 14:46:05 +0200350 bufs[i] = compat_ptr(ptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 bufptr++;
352 }
353 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
354 err = snd_pcm_lib_writev(substream, bufs, frames);
355 else
356 err = snd_pcm_lib_readv(substream, bufs, frames);
357 if (err >= 0) {
358 if (put_user(err, &data32->result))
359 err = -EFAULT;
360 }
361 kfree(bufs);
362 return err;
363}
364
365
Takashi Iwai877211f2005-11-17 13:59:38 +0100366struct snd_pcm_mmap_status32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 s32 state;
368 s32 pad1;
369 u32 hw_ptr;
370 struct compat_timespec tstamp;
371 s32 suspended_state;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500372 struct compat_timespec audio_tstamp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373} __attribute__((packed));
374
Takashi Iwai877211f2005-11-17 13:59:38 +0100375struct snd_pcm_mmap_control32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 u32 appl_ptr;
377 u32 avail_min;
378};
379
Takashi Iwai877211f2005-11-17 13:59:38 +0100380struct snd_pcm_sync_ptr32 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 u32 flags;
382 union {
Takashi Iwai877211f2005-11-17 13:59:38 +0100383 struct snd_pcm_mmap_status32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 unsigned char reserved[64];
385 } s;
386 union {
Takashi Iwai877211f2005-11-17 13:59:38 +0100387 struct snd_pcm_mmap_control32 control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 unsigned char reserved[64];
389 } c;
390} __attribute__((packed));
391
Takashi Iwai877211f2005-11-17 13:59:38 +0100392static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
393 struct snd_pcm_sync_ptr32 __user *src)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394{
Takashi Iwai877211f2005-11-17 13:59:38 +0100395 struct snd_pcm_runtime *runtime = substream->runtime;
396 volatile struct snd_pcm_mmap_status *status;
397 volatile struct snd_pcm_mmap_control *control;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 u32 sflags;
Takashi Iwai877211f2005-11-17 13:59:38 +0100399 struct snd_pcm_mmap_control scontrol;
400 struct snd_pcm_mmap_status sstatus;
Takashi Iwaib2711312005-08-15 15:01:10 +0200401 snd_pcm_uframes_t boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 int err;
403
Takashi Iwai7eaa9432008-08-08 17:09:09 +0200404 if (snd_BUG_ON(!runtime))
405 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406
407 if (get_user(sflags, &src->flags) ||
408 get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
409 get_user(scontrol.avail_min, &src->c.control.avail_min))
410 return -EFAULT;
411 if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
412 err = snd_pcm_hwsync(substream);
413 if (err < 0)
414 return err;
415 }
416 status = runtime->status;
417 control = runtime->control;
Takashi Iwaib2711312005-08-15 15:01:10 +0200418 boundary = recalculate_boundary(runtime);
Takashi Iwai7153a552005-08-25 19:51:47 +0200419 if (! boundary)
420 boundary = 0x7fffffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 snd_pcm_stream_lock_irq(substream);
Takashi Iwaib2711312005-08-15 15:01:10 +0200422 /* FIXME: we should consider the boundary for the sync from app */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
424 control->appl_ptr = scontrol.appl_ptr;
425 else
Takashi Iwaib2711312005-08-15 15:01:10 +0200426 scontrol.appl_ptr = control->appl_ptr % boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
428 control->avail_min = scontrol.avail_min;
429 else
430 scontrol.avail_min = control->avail_min;
431 sstatus.state = status->state;
Takashi Iwaib2711312005-08-15 15:01:10 +0200432 sstatus.hw_ptr = status->hw_ptr % boundary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 sstatus.tstamp = status->tstamp;
434 sstatus.suspended_state = status->suspended_state;
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500435 sstatus.audio_tstamp = status->audio_tstamp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 snd_pcm_stream_unlock_irq(substream);
437 if (put_user(sstatus.state, &src->s.status.state) ||
438 put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500439 compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
Pierre-Louis Bossart4eeaaea2012-10-22 16:42:15 -0500441 compat_put_timespec(&sstatus.audio_tstamp,
442 &src->s.status.audio_tstamp) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
444 put_user(scontrol.avail_min, &src->c.control.avail_min))
445 return -EFAULT;
446
447 return 0;
448}
449
450
451/*
452 */
453enum {
Takashi Iwai877211f2005-11-17 13:59:38 +0100454 SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32),
455 SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
456 SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
457 SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
Takashi Iwai877211f2005-11-17 13:59:38 +0100459 SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
461 SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
Takashi Iwai877211f2005-11-17 13:59:38 +0100462 SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32),
463 SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32),
464 SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32),
465 SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32),
466 SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467
468};
469
470static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
471{
Takashi Iwai877211f2005-11-17 13:59:38 +0100472 struct snd_pcm_file *pcm_file;
473 struct snd_pcm_substream *substream;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 void __user *argp = compat_ptr(arg);
475
476 pcm_file = file->private_data;
477 if (! pcm_file)
478 return -ENOTTY;
479 substream = pcm_file->substream;
480 if (! substream)
481 return -ENOTTY;
482
483 /*
484 * When PCM is used on 32bit mode, we need to disable
485 * mmap of PCM status/control records because of the size
486 * incompatibility.
487 */
Takashi Iwai548a6482006-07-31 16:51:51 +0200488 pcm_file->no_compat_mmap = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489
490 switch (cmd) {
491 case SNDRV_PCM_IOCTL_PVERSION:
492 case SNDRV_PCM_IOCTL_INFO:
Takashi Iwai5a7f2612007-12-17 11:44:25 +0100493 case SNDRV_PCM_IOCTL_TSTAMP:
Takashi Iwai6b587ef2007-12-14 12:10:26 +0100494 case SNDRV_PCM_IOCTL_TTSTAMP:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 case SNDRV_PCM_IOCTL_HWSYNC:
496 case SNDRV_PCM_IOCTL_PREPARE:
497 case SNDRV_PCM_IOCTL_RESET:
498 case SNDRV_PCM_IOCTL_START:
499 case SNDRV_PCM_IOCTL_DROP:
500 case SNDRV_PCM_IOCTL_DRAIN:
501 case SNDRV_PCM_IOCTL_PAUSE:
502 case SNDRV_PCM_IOCTL_HW_FREE:
503 case SNDRV_PCM_IOCTL_RESUME:
504 case SNDRV_PCM_IOCTL_XRUN:
505 case SNDRV_PCM_IOCTL_LINK:
506 case SNDRV_PCM_IOCTL_UNLINK:
507 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
Takashi Iwai0df63e42006-04-28 15:13:41 +0200508 return snd_pcm_playback_ioctl1(file, substream, cmd, argp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 else
Takashi Iwai0df63e42006-04-28 15:13:41 +0200510 return snd_pcm_capture_ioctl1(file, substream, cmd, argp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 case SNDRV_PCM_IOCTL_HW_REFINE32:
512 return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
513 case SNDRV_PCM_IOCTL_HW_PARAMS32:
514 return snd_pcm_ioctl_hw_params_compat(substream, 0, argp);
515 case SNDRV_PCM_IOCTL_SW_PARAMS32:
516 return snd_pcm_ioctl_sw_params_compat(substream, argp);
517 case SNDRV_PCM_IOCTL_STATUS32:
518 return snd_pcm_status_user_compat(substream, argp);
519 case SNDRV_PCM_IOCTL_SYNC_PTR32:
520 return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
521 case SNDRV_PCM_IOCTL_CHANNEL_INFO32:
522 return snd_pcm_ioctl_channel_info_compat(substream, argp);
523 case SNDRV_PCM_IOCTL_WRITEI_FRAMES32:
524 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
525 case SNDRV_PCM_IOCTL_READI_FRAMES32:
526 return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
527 case SNDRV_PCM_IOCTL_WRITEN_FRAMES32:
528 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
529 case SNDRV_PCM_IOCTL_READN_FRAMES32:
530 return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
531 case SNDRV_PCM_IOCTL_DELAY32:
532 return snd_pcm_ioctl_delay_compat(substream, argp);
533 case SNDRV_PCM_IOCTL_REWIND32:
534 return snd_pcm_ioctl_rewind_compat(substream, argp);
535 case SNDRV_PCM_IOCTL_FORWARD32:
536 return snd_pcm_ioctl_forward_compat(substream, argp);
537 }
538
539 return -ENOIOCTLCMD;
540}