projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux...
[deliverable/linux.git] / drivers / media / v4l2-core / v4l2-compat-ioctl32.c
CommitLineData
cf664a64
PDM		 1/*
2 * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
3 * Separated from fs stuff by Arnd Bergmann <arnd@arndb.de>
4 *
5 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
6 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
7 * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
a2531293 8 * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
cf664a64 9 * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be)
92f45bad 10 * Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
cf664a64
PDM		 11 *
12 * These routines maintain argument size conversion between 32bit and 64bit
13 * ioctls.
14 */
15
0d0fbf81 16#include <linux/compat.h>
133b7354 17#include <linux/module.h>
b9d0aa6e 18#include <linux/videodev2.h>
ed45ce2c 19#include <linux/v4l2-subdev.h>
b9d0aa6e 20#include <media/v4l2-dev.h>
2864462e 21#include <media/v4l2-ioctl.h>
0d0fbf81 22
069b7479 23static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
92f45bad 24{
069b7479 25 long ret = -ENOIOCTLCMD;
92f45bad
HV		 26
27 if (file->f_op->unlocked_ioctl)
28 ret = file->f_op->unlocked_ioctl(file, cmd, arg);
92f45bad
HV		 29
30 return ret;
31}
32
33
d1f81da2 34struct v4l2_clip32 {
cf664a64
PDM		 35 struct v4l2_rect c;
36 compat_caddr_t next;
37};
38
d1f81da2 39struct v4l2_window32 {
cf664a64 40 struct v4l2_rect w;
6016af82 41 __u32 field; /* enum v4l2_field */
cf664a64
PDM		 42 __u32 chromakey;
43 compat_caddr_t clips; /* actually struct v4l2_clip32 * */
44 __u32 clipcount;
45 compat_caddr_t bitmap;
46};
47
48static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
49{
a113bc78
GM		 50 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) ||
51 copy_from_user(&kp->w, &up->w, sizeof(up->w)) ||
52 get_user(kp->field, &up->field) ||
53 get_user(kp->chromakey, &up->chromakey) ||
54 get_user(kp->clipcount, &up->clipcount))
55 return -EFAULT;
cf664a64
PDM		 56 if (kp->clipcount > 2048)
57 return -EINVAL;
58 if (kp->clipcount) {
5b1a43d7
AV		 59 struct v4l2_clip32 __user *uclips;
60 struct v4l2_clip __user *kclips;
cf664a64 61 int n = kp->clipcount;
5b1a43d7 62 compat_caddr_t p;
cf664a64 63
5b1a43d7
AV		 64 if (get_user(p, &up->clips))
65 return -EFAULT;
66 uclips = compat_ptr(p);
cf664a64
PDM		 67 kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip));
68 kp->clips = kclips;
69 while (--n >= 0) {
5b1a43d7
AV		 70 if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c)))
71 return -EFAULT;
72 if (put_user(n ? kclips + 1 : NULL, &kclips->next))
a113bc78 73 return -EFAULT;
cf664a64
PDM		 74 uclips += 1;
75 kclips += 1;
76 }
77 } else
5b1a43d7 78 kp->clips = NULL;
cf664a64
PDM		 79 return 0;
80}
81
82static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
83{
f2e6c6ad 84 if (copy_to_user(&up->w, &kp->w, sizeof(kp->w)) ||
a113bc78
GM		 85 put_user(kp->field, &up->field) ||
86 put_user(kp->chromakey, &up->chromakey) ||
87 put_user(kp->clipcount, &up->clipcount))
88 return -EFAULT;
cf664a64
PDM		 89 return 0;
90}
91
92static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
93{
5b1a43d7
AV		 94 if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format)))
95 return -EFAULT;
a113bc78 96 return 0;
cf664a64
PDM		 97}
98
52a3082f
PO		 99static inline int get_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp,
100 struct v4l2_pix_format_mplane __user *up)
101{
102 if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format_mplane)))
103 return -EFAULT;
104 return 0;
105}
106
cf664a64
PDM		 107static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
108{
5b1a43d7
AV		 109 if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format)))
110 return -EFAULT;
a113bc78 111 return 0;
cf664a64
PDM		 112}
113
52a3082f
PO		 114static inline int put_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp,
115 struct v4l2_pix_format_mplane __user *up)
116{
117 if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format_mplane)))
118 return -EFAULT;
119 return 0;
120}
121
cf664a64
PDM		 122static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
123{
5b1a43d7
AV		 124 if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format)))
125 return -EFAULT;
a113bc78 126 return 0;
cf664a64
PDM		 127}
128
129static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
130{
5b1a43d7
AV		 131 if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format)))
132 return -EFAULT;
a113bc78 133 return 0;
cf664a64
PDM		 134}
135
92f45bad
HV		 136static inline int get_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up)
137{
138 if (copy_from_user(kp, up, sizeof(struct v4l2_sliced_vbi_format)))
139 return -EFAULT;
140 return 0;
141}
142
143static inline int put_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up)
144{
145 if (copy_to_user(up, kp, sizeof(struct v4l2_sliced_vbi_format)))
146 return -EFAULT;
147 return 0;
148}
149
d1f81da2 150struct v4l2_format32 {
6016af82 151 __u32 type; /* enum v4l2_buf_type */
d1f81da2 152 union {
92f45bad 153 struct v4l2_pix_format pix;
52a3082f 154 struct v4l2_pix_format_mplane pix_mp;
92f45bad
HV		 155 struct v4l2_window32 win;
156 struct v4l2_vbi_format vbi;
157 struct v4l2_sliced_vbi_format sliced;
d1f81da2 158 __u8 raw_data[200]; /* user-defined */
cf664a64
PDM		 159 } fmt;
160};
161
09362ec2
GL		 162/**
163 * struct v4l2_create_buffers32 - VIDIOC_CREATE_BUFS32 argument
164 * @index: on return, index of the first created buffer
165 * @count: entry: number of requested buffers,
166 * return: number of created buffers
167 * @memory: buffer memory type
168 * @format: frame format, for which buffers are requested
169 * @reserved: future extensions
170 */
2150158b 171struct v4l2_create_buffers32 {
09362ec2 172 __u32 index;
2150158b 173 __u32 count;
6016af82 174 __u32 memory; /* enum v4l2_memory */
09362ec2 175 struct v4l2_format32 format;
2150158b
GL		 176 __u32 reserved[8];
177};
178
179static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
cf664a64 180{
ec77581a
GL		 181 if (get_user(kp->type, &up->type))
182 return -EFAULT;
183
cf664a64
PDM		 184 switch (kp->type) {
185 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
92f45bad 186 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
cf664a64 187 return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
52a3082f
PO		 188 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
189 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
190 return get_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
191 &up->fmt.pix_mp);
cf664a64 192 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
92f45bad 193 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
cf664a64
PDM		 194 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
195 case V4L2_BUF_TYPE_VBI_CAPTURE:
92f45bad 196 case V4L2_BUF_TYPE_VBI_OUTPUT:
cf664a64 197 return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
92f45bad
HV		 198 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
199 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
200 return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
cf664a64 201 default:
92f45bad 202 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
cf664a64 203 kp->type);
92f45bad 204 return -EINVAL;
cf664a64
PDM		 205 }
206}
207
2150158b
GL		 208static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
209{
ec77581a
GL		 210 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)))
211 return -EFAULT;
2150158b
GL		 212 return __get_v4l2_format32(kp, up);
213}
214
215static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
216{
217 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) ||
ec77581a
GL		 218 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format)))
219 return -EFAULT;
2150158b
GL		 220 return __get_v4l2_format32(&kp->format, &up->format);
221}
222
223static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
cf664a64 224{
6ed9b285
GL		 225 if (put_user(kp->type, &up->type))
226 return -EFAULT;
227
cf664a64
PDM		 228 switch (kp->type) {
229 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
92f45bad 230 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
cf664a64 231 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
52a3082f
PO		 232 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
233 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
234 return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
235 &up->fmt.pix_mp);
cf664a64 236 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
92f45bad 237 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
cf664a64
PDM		 238 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
239 case V4L2_BUF_TYPE_VBI_CAPTURE:
92f45bad 240 case V4L2_BUF_TYPE_VBI_OUTPUT:
cf664a64 241 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
92f45bad
HV		 242 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
243 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
244 return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
cf664a64 245 default:
92f45bad
HV		 246 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
247 kp->type);
248 return -EINVAL;
cf664a64
PDM		 249 }
250}
251
2150158b
GL		 252static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
253{
6ed9b285 254 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)))
2150158b
GL		 255 return -EFAULT;
256 return __put_v4l2_format32(kp, up);
257}
258
259static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
260{
261 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
6ed9b285
GL		 262 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)))
263 return -EFAULT;
2150158b
GL		 264 return __put_v4l2_format32(&kp->format, &up->format);
265}
266
d1f81da2 267struct v4l2_standard32 {
cf664a64
PDM		 268 __u32 index;
269 __u32 id[2]; /* __u64 would get the alignment wrong */
270 __u8 name[24];
271 struct v4l2_fract frameperiod; /* Frames, not fields */
272 __u32 framelines;
273 __u32 reserved[4];
274};
275
276static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
277{
278 /* other fields are not set by the user, nor used by the driver */
a113bc78
GM		 279 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
280 get_user(kp->index, &up->index))
281 return -EFAULT;
282 return 0;
cf664a64
PDM		 283}
284
285static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
286{
d1f81da2 287 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
a113bc78
GM		 288 put_user(kp->index, &up->index) ||
289 copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
290 copy_to_user(up->name, kp->name, 24) ||
291 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
292 put_user(kp->framelines, &up->framelines) ||
293 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
294 return -EFAULT;
295 return 0;
296}
297
52a3082f
PO		 298struct v4l2_plane32 {
299 __u32 bytesused;
300 __u32 length;
301 union {
302 __u32 mem_offset;
303 compat_long_t userptr;
051c7788 304 __s32 fd;
52a3082f
PO		 305 } m;
306 __u32 data_offset;
307 __u32 reserved[11];
308};
309
d1f81da2 310struct v4l2_buffer32 {
cf664a64 311 __u32 index;
6016af82 312 __u32 type; /* enum v4l2_buf_type */
cf664a64
PDM		 313 __u32 bytesused;
314 __u32 flags;
6016af82 315 __u32 field; /* enum v4l2_field */
cf664a64
PDM		 316 struct compat_timeval timestamp;
317 struct v4l2_timecode timecode;
318 __u32 sequence;
319
320 /* memory location */
6016af82 321 __u32 memory; /* enum v4l2_memory */
cf664a64
PDM		 322 union {
323 __u32 offset;
324 compat_long_t userptr;
52a3082f 325 compat_caddr_t planes;
051c7788 326 __s32 fd;
cf664a64
PDM		 327 } m;
328 __u32 length;
2b719d7b 329 __u32 reserved2;
cf664a64
PDM		 330 __u32 reserved;
331};
332
8ae632b1 333static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
52a3082f
PO		 334 enum v4l2_memory memory)
335{
336 void __user *up_pln;
337 compat_long_t p;
338
339 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
340 copy_in_user(&up->data_offset, &up32->data_offset,
341 sizeof(__u32)))
342 return -EFAULT;
343
344 if (memory == V4L2_MEMORY_USERPTR) {
345 if (get_user(p, &up32->m.userptr))
346 return -EFAULT;
347 up_pln = compat_ptr(p);
348 if (put_user((unsigned long)up_pln, &up->m.userptr))
349 return -EFAULT;
051c7788
SS		 350 } else if (memory == V4L2_MEMORY_DMABUF) {
351 if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int)))
352 return -EFAULT;
52a3082f
PO		 353 } else {
354 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
355 sizeof(__u32)))
356 return -EFAULT;
357 }
358
359 return 0;
360}
361
8ae632b1 362static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
52a3082f
PO		 363 enum v4l2_memory memory)
364{
365 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
366 copy_in_user(&up32->data_offset, &up->data_offset,
367 sizeof(__u32)))
368 return -EFAULT;
369
370 /* For MMAP, driver might've set up the offset, so copy it back.
371 * USERPTR stays the same (was userspace-provided), so no copying. */
372 if (memory == V4L2_MEMORY_MMAP)
373 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
374 sizeof(__u32)))
375 return -EFAULT;
051c7788
SS		 376 /* For DMABUF, driver might've set up the fd, so copy it back. */
377 if (memory == V4L2_MEMORY_DMABUF)
378 if (copy_in_user(&up32->m.fd, &up->m.fd,
379 sizeof(int)))
380 return -EFAULT;
52a3082f
PO		 381
382 return 0;
383}
384
cf664a64
PDM		 385static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
386{
52a3082f
PO		 387 struct v4l2_plane32 __user *uplane32;
388 struct v4l2_plane __user *uplane;
389 compat_caddr_t p;
390 int num_planes;
391 int ret;
cf664a64 392
a113bc78
GM		 393 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
394 get_user(kp->index, &up->index) ||
395 get_user(kp->type, &up->type) ||
396 get_user(kp->flags, &up->flags) ||
cc831f84 397 get_user(kp->memory, &up->memory))
a113bc78 398 return -EFAULT;
52a3082f
PO		 399
400 if (V4L2_TYPE_IS_OUTPUT(kp->type))
401 if (get_user(kp->bytesused, &up->bytesused) ||
402 get_user(kp->field, &up->field) ||
403 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
404 get_user(kp->timestamp.tv_usec,
405 &up->timestamp.tv_usec))
22c859fa 406 return -EFAULT;
cf664a64 407
52a3082f
PO		 408 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
409 if (get_user(kp->length, &up->length))
5b1a43d7
AV		 410 return -EFAULT;
411
52a3082f
PO		 412 num_planes = kp->length;
413 if (num_planes == 0) {
414 kp->m.planes = NULL;
415 /* num_planes == 0 is legal, e.g. when userspace doesn't
416 * need planes array on DQBUF*/
417 return 0;
cf664a64 418 }
52a3082f
PO		 419
420 if (get_user(p, &up->m.planes))
a113bc78 421 return -EFAULT;
52a3082f
PO		 422
423 uplane32 = compat_ptr(p);
424 if (!access_ok(VERIFY_READ, uplane32,
425 num_planes * sizeof(struct v4l2_plane32)))
426 return -EFAULT;
427
428 /* We don't really care if userspace decides to kill itself
429 * by passing a very big num_planes value */
430 uplane = compat_alloc_user_space(num_planes *
431 sizeof(struct v4l2_plane));
8ae632b1 432 kp->m.planes = (__force struct v4l2_plane *)uplane;
52a3082f
PO		 433
434 while (--num_planes >= 0) {
435 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
436 if (ret)
437 return ret;
438 ++uplane;
439 ++uplane32;
440 }
441 } else {
442 switch (kp->memory) {
443 case V4L2_MEMORY_MMAP:
444 if (get_user(kp->length, &up->length) ||
445 get_user(kp->m.offset, &up->m.offset))
446 return -EFAULT;
447 break;
448 case V4L2_MEMORY_USERPTR:
449 {
450 compat_long_t tmp;
451
452 if (get_user(kp->length, &up->length) ||
453 get_user(tmp, &up->m.userptr))
454 return -EFAULT;
455
456 kp->m.userptr = (unsigned long)compat_ptr(tmp);
457 }
458 break;
459 case V4L2_MEMORY_OVERLAY:
460 if (get_user(kp->m.offset, &up->m.offset))
461 return -EFAULT;
462 break;
051c7788
SS		 463 case V4L2_MEMORY_DMABUF:
464 if (get_user(kp->m.fd, &up->m.fd))
465 return -EFAULT;
466 break;
52a3082f 467 }
cf664a64 468 }
52a3082f 469
cf664a64
PDM		 470 return 0;
471}
472
473static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
474{
52a3082f
PO		 475 struct v4l2_plane32 __user *uplane32;
476 struct v4l2_plane __user *uplane;
477 compat_caddr_t p;
478 int num_planes;
479 int ret;
480
a113bc78
GM		 481 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
482 put_user(kp->index, &up->index) ||
483 put_user(kp->type, &up->type) ||
484 put_user(kp->flags, &up->flags) ||
cc831f84 485 put_user(kp->memory, &up->memory))
a113bc78 486 return -EFAULT;
52a3082f 487
a113bc78
GM		 488 if (put_user(kp->bytesused, &up->bytesused) ||
489 put_user(kp->field, &up->field) ||
490 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
491 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
492 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
493 put_user(kp->sequence, &up->sequence) ||
2b719d7b 494 put_user(kp->reserved2, &up->reserved2) ||
cc831f84 495 put_user(kp->reserved, &up->reserved))
a113bc78 496 return -EFAULT;
52a3082f
PO		 497
498 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
499 num_planes = kp->length;
500 if (num_planes == 0)
501 return 0;
502
8ae632b1 503 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
52a3082f
PO		 504 if (get_user(p, &up->m.planes))
505 return -EFAULT;
506 uplane32 = compat_ptr(p);
507
508 while (--num_planes >= 0) {
509 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
510 if (ret)
511 return ret;
512 ++uplane;
513 ++uplane32;
514 }
515 } else {
516 switch (kp->memory) {
517 case V4L2_MEMORY_MMAP:
518 if (put_user(kp->length, &up->length) ||
519 put_user(kp->m.offset, &up->m.offset))
520 return -EFAULT;
521 break;
522 case V4L2_MEMORY_USERPTR:
523 if (put_user(kp->length, &up->length) ||
524 put_user(kp->m.userptr, &up->m.userptr))
525 return -EFAULT;
526 break;
527 case V4L2_MEMORY_OVERLAY:
528 if (put_user(kp->m.offset, &up->m.offset))
529 return -EFAULT;
530 break;
051c7788
SS		 531 case V4L2_MEMORY_DMABUF:
532 if (put_user(kp->m.fd, &up->m.fd))
533 return -EFAULT;
534 break;
52a3082f
PO		 535 }
536 }
537
cf664a64
PDM		 538 return 0;
539}
540
d1f81da2 541struct v4l2_framebuffer32 {
cf664a64
PDM		 542 __u32 capability;
543 __u32 flags;
544 compat_caddr_t base;
d52e2381
LP		 545 struct {
546 __u32 width;
547 __u32 height;
548 __u32 pixelformat;
549 __u32 field;
550 __u32 bytesperline;
551 __u32 sizeimage;
552 __u32 colorspace;
553 __u32 priv;
554 } fmt;
cf664a64
PDM		 555};
556
13d133bc
PDM		 557static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
558{
559 u32 tmp;
560
a113bc78
GM		 561 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
562 get_user(tmp, &up->base) ||
563 get_user(kp->capability, &up->capability) ||
d52e2381
LP		 564 get_user(kp->flags, &up->flags) ||
565 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
a113bc78 566 return -EFAULT;
8ae632b1 567 kp->base = (__force void *)compat_ptr(tmp);
13d133bc
PDM		 568 return 0;
569}
570
cf664a64
PDM		 571static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
572{
573 u32 tmp = (u32)((unsigned long)kp->base);
574
d1f81da2 575 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
a113bc78
GM		 576 put_user(tmp, &up->base) ||
577 put_user(kp->capability, &up->capability) ||
d52e2381
LP		 578 put_user(kp->flags, &up->flags) ||
579 copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt)))
a113bc78 580 return -EFAULT;
cf664a64
PDM		 581 return 0;
582}
583
92f45bad
HV		 584struct v4l2_input32 {
585 __u32 index; /* Which input */
586 __u8 name[32]; /* Label */
587 __u32 type; /* Type of input */
588 __u32 audioset; /* Associated audios (bitfield) */
589 __u32 tuner; /* Associated tuner */
590 v4l2_std_id std;
591 __u32 status;
592 __u32 reserved[4];
593} __attribute__ ((packed));
594
595/* The 64-bit v4l2_input struct has extra padding at the end of the struct.
596 Otherwise it is identical to the 32-bit version. */
597static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
a113bc78 598{
92f45bad 599 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
5b1a43d7 600 return -EFAULT;
a113bc78
GM		 601 return 0;
602}
603
92f45bad 604static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
a113bc78 605{
92f45bad 606 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
5b1a43d7 607 return -EFAULT;
a113bc78
GM		 608 return 0;
609}
610
92f45bad
HV		 611struct v4l2_ext_controls32 {
612 __u32 ctrl_class;
613 __u32 count;
614 __u32 error_idx;
615 __u32 reserved[2];
616 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
eb4eeccc
MCC		 617};
618
6b5a9492
HV		 619struct v4l2_ext_control32 {
620 __u32 id;
621 __u32 size;
622 __u32 reserved2[1];
623 union {
624 __s32 value;
625 __s64 value64;
626 compat_caddr_t string; /* actually char * */
627 };
628} __attribute__ ((packed));
629
630/* The following function really belong in v4l2-common, but that causes
631 a circular dependency between modules. We need to think about this, but
632 for now this will do. */
633
634/* Return non-zero if this control is a pointer type. Currently only
fdf82dc2 635 type STRING is a pointer type. */
6b5a9492
HV		 636static inline int ctrl_is_pointer(u32 id)
637{
fdf82dc2
EV		 638 switch (id) {
639 case V4L2_CID_RDS_TX_PS_NAME:
640 case V4L2_CID_RDS_TX_RADIO_TEXT:
641 return 1;
642 default:
643 return 0;
644 }
6b5a9492
HV		 645}
646
92f45bad 647static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
eb4eeccc 648{
6b5a9492 649 struct v4l2_ext_control32 __user *ucontrols;
92f45bad
HV		 650 struct v4l2_ext_control __user *kcontrols;
651 int n;
652 compat_caddr_t p;
653
654 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
655 get_user(kp->ctrl_class, &up->ctrl_class) ||
656 get_user(kp->count, &up->count) ||
657 get_user(kp->error_idx, &up->error_idx) ||
658 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
659 return -EFAULT;
660 n = kp->count;
661 if (n == 0) {
662 kp->controls = NULL;
663 return 0;
664 }
665 if (get_user(p, &up->controls))
666 return -EFAULT;
667 ucontrols = compat_ptr(p);
52a3082f
PO		 668 if (!access_ok(VERIFY_READ, ucontrols,
669 n * sizeof(struct v4l2_ext_control32)))
92f45bad
HV		 670 return -EFAULT;
671 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
8ae632b1 672 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
92f45bad 673 while (--n >= 0) {
8ae632b1
HV		 674 u32 id;
675
52a3082f 676 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
92f45bad 677 return -EFAULT;
8ae632b1
HV		 678 if (get_user(id, &kcontrols->id))
679 return -EFAULT;
680 if (ctrl_is_pointer(id)) {
6b5a9492
HV		 681 void __user *s;
682
683 if (get_user(p, &ucontrols->string))
684 return -EFAULT;
685 s = compat_ptr(p);
686 if (put_user(s, &kcontrols->string))
687 return -EFAULT;
688 }
92f45bad
HV		 689 ucontrols++;
690 kcontrols++;
691 }
eb4eeccc
MCC		 692 return 0;
693}
694
92f45bad 695static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
0d0fbf81 696{
6b5a9492 697 struct v4l2_ext_control32 __user *ucontrols;
8ae632b1
HV		 698 struct v4l2_ext_control __user *kcontrols =
699 (__force struct v4l2_ext_control __user *)kp->controls;
92f45bad
HV		 700 int n = kp->count;
701 compat_caddr_t p;
702
703 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
704 put_user(kp->ctrl_class, &up->ctrl_class) ||
705 put_user(kp->count, &up->count) ||
706 put_user(kp->error_idx, &up->error_idx) ||
707 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
708 return -EFAULT;
709 if (!kp->count)
710 return 0;
a113bc78 711
92f45bad 712 if (get_user(p, &up->controls))
0d0fbf81 713 return -EFAULT;
92f45bad 714 ucontrols = compat_ptr(p);
52a3082f
PO		 715 if (!access_ok(VERIFY_WRITE, ucontrols,
716 n * sizeof(struct v4l2_ext_control32)))
0d0fbf81
AB		 717 return -EFAULT;
718
92f45bad 719 while (--n >= 0) {
6b5a9492 720 unsigned size = sizeof(*ucontrols);
8ae632b1 721 u32 id;
6b5a9492 722
8ae632b1
HV		 723 if (get_user(id, &kcontrols->id))
724 return -EFAULT;
6b5a9492
HV		 725 /* Do not modify the pointer when copying a pointer control.
726 The contents of the pointer was changed, not the pointer
727 itself. */
8ae632b1 728 if (ctrl_is_pointer(id))
6b5a9492
HV		 729 size -= sizeof(ucontrols->value64);
730 if (copy_in_user(ucontrols, kcontrols, size))
92f45bad
HV		 731 return -EFAULT;
732 ucontrols++;
733 kcontrols++;
0d0fbf81 734 }
92f45bad 735 return 0;
0d0fbf81 736}
92f45bad 737
2330fb82
HV		 738struct v4l2_event32 {
739 __u32 type;
740 union {
741 __u8 data[64];
742 } u;
743 __u32 pending;
744 __u32 sequence;
745 struct compat_timespec timestamp;
746 __u32 id;
747 __u32 reserved[8];
748};
749
750static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
751{
752 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
753 put_user(kp->type, &up->type) ||
754 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
755 put_user(kp->pending, &up->pending) ||
756 put_user(kp->sequence, &up->sequence) ||
81993e81 757 compat_put_timespec(&kp->timestamp, &up->timestamp) ||
2330fb82
HV		 758 put_user(kp->id, &up->id) ||
759 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
760 return -EFAULT;
761 return 0;
762}
763
dd519bb3 764struct v4l2_edid32 {
ed45ce2c
HV		 765 __u32 pad;
766 __u32 start_block;
767 __u32 blocks;
768 __u32 reserved[5];
769 compat_caddr_t edid;
770};
771
dd519bb3 772static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
ed45ce2c
HV		 773{
774 u32 tmp;
775
dd519bb3 776 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) ||
ed45ce2c
HV		 777 get_user(kp->pad, &up->pad) ||
778 get_user(kp->start_block, &up->start_block) ||
779 get_user(kp->blocks, &up->blocks) ||
780 get_user(tmp, &up->edid) ||
781 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
782 return -EFAULT;
8ae632b1 783 kp->edid = (__force u8 *)compat_ptr(tmp);
ed45ce2c
HV		 784 return 0;
785}
786
dd519bb3 787static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
ed45ce2c
HV		 788{
789 u32 tmp = (u32)((unsigned long)kp->edid);
790
dd519bb3 791 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) ||
ed45ce2c
HV		 792 put_user(kp->pad, &up->pad) ||
793 put_user(kp->start_block, &up->start_block) ||
794 put_user(kp->blocks, &up->blocks) ||
795 put_user(tmp, &up->edid) ||
8ae632b1 796 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
ed45ce2c
HV		 797 return -EFAULT;
798 return 0;
799}
800
801
92f45bad
HV		 802#define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
803#define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
804#define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
805#define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
806#define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
807#define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
808#define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
809#define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
810#define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
dd519bb3
HV		 811#define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
812#define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
92f45bad
HV		 813#define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
814#define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
815#define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
816#define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
2330fb82 817#define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
2150158b
GL		 818#define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
819#define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
92f45bad
HV		 820
821#define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
92f45bad
HV		 822#define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
823#define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
824#define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
825#define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
826#define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
827#define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
0d0fbf81 828
069b7479 829static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
0d0fbf81
AB		 830{
831 union {
cf664a64
PDM		 832 struct v4l2_format v2f;
833 struct v4l2_buffer v2b;
834 struct v4l2_framebuffer v2fb;
a113bc78 835 struct v4l2_input v2i;
92f45bad
HV		 836 struct v4l2_standard v2s;
837 struct v4l2_ext_controls v2ecs;
2330fb82 838 struct v4l2_event v2ev;
2150158b 839 struct v4l2_create_buffers v2crt;
dd519bb3 840 struct v4l2_edid v2edid;
0d0fbf81 841 unsigned long vx;
92f45bad 842 int vi;
0d0fbf81 843 } karg;
0d0fbf81 844 void __user *up = compat_ptr(arg);
cf664a64 845 int compatible_arg = 1;
069b7479 846 long err = 0;
0d0fbf81
AB		 847
848 /* First, convert the command. */
d1f81da2 849 switch (cmd) {
92f45bad
HV		 850 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
851 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
852 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
853 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
854 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
855 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
856 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
857 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
858 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
859 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
860 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
861 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
862 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
2330fb82 863 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
92f45bad 864 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
92f45bad
HV		 865 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
866 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
867 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
868 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
869 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
870 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
2150158b
GL		 871 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
872 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
dd519bb3
HV		 873 case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break;
874 case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break;
92f45bad 875 }
0d0fbf81 876
d1f81da2 877 switch (cmd) {
cf664a64 878 case VIDIOC_OVERLAY:
13d133bc
PDM		 879 case VIDIOC_STREAMON:
880 case VIDIOC_STREAMOFF:
92f45bad
HV		 881 case VIDIOC_S_INPUT:
882 case VIDIOC_S_OUTPUT:
883 err = get_user(karg.vi, (s32 __user *)up);
884 compatible_arg = 0;
0d0fbf81 885 break;
13d133bc 886
92f45bad
HV		 887 case VIDIOC_G_INPUT:
888 case VIDIOC_G_OUTPUT:
13d133bc
PDM		 889 compatible_arg = 0;
890 break;
cf664a64 891
dd519bb3
HV		 892 case VIDIOC_G_EDID:
893 case VIDIOC_S_EDID:
894 err = get_v4l2_edid32(&karg.v2edid, up);
ed45ce2c
HV		 895 compatible_arg = 0;
896 break;
897
cf664a64
PDM		 898 case VIDIOC_G_FMT:
899 case VIDIOC_S_FMT:
900 case VIDIOC_TRY_FMT:
901 err = get_v4l2_format32(&karg.v2f, up);
902 compatible_arg = 0;
903 break;
904
2150158b
GL		 905 case VIDIOC_CREATE_BUFS:
906 err = get_v4l2_create32(&karg.v2crt, up);
907 compatible_arg = 0;
908 break;
909
910 case VIDIOC_PREPARE_BUF:
cf664a64
PDM		 911 case VIDIOC_QUERYBUF:
912 case VIDIOC_QBUF:
913 case VIDIOC_DQBUF:
914 err = get_v4l2_buffer32(&karg.v2b, up);
915 compatible_arg = 0;
916 break;
917
92f45bad
HV		 918 case VIDIOC_S_FBUF:
919 err = get_v4l2_framebuffer32(&karg.v2fb, up);
a113bc78
GM		 920 compatible_arg = 0;
921 break;
922
92f45bad 923 case VIDIOC_G_FBUF:
cf664a64
PDM		 924 compatible_arg = 0;
925 break;
926
92f45bad
HV		 927 case VIDIOC_ENUMSTD:
928 err = get_v4l2_standard32(&karg.v2s, up);
a113bc78
GM		 929 compatible_arg = 0;
930 break;
931
92f45bad 932 case VIDIOC_ENUMINPUT:
a113bc78
GM		 933 err = get_v4l2_input32(&karg.v2i, up);
934 compatible_arg = 0;
935 break;
936
92f45bad
HV		 937 case VIDIOC_G_EXT_CTRLS:
938 case VIDIOC_S_EXT_CTRLS:
939 case VIDIOC_TRY_EXT_CTRLS:
940 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
a113bc78
GM		 941 compatible_arg = 0;
942 break;
2330fb82
HV		 943 case VIDIOC_DQEVENT:
944 compatible_arg = 0;
945 break;
92f45bad 946 }
d1f81da2 947 if (err)
92f45bad 948 return err;
0d0fbf81 949
d1f81da2 950 if (compatible_arg)
92f45bad 951 err = native_ioctl(file, cmd, (unsigned long)up);
cf664a64
PDM		 952 else {
953 mm_segment_t old_fs = get_fs();
0d0fbf81 954
cf664a64 955 set_fs(KERNEL_DS);
92f45bad 956 err = native_ioctl(file, cmd, (unsigned long)&karg);
cf664a64
PDM		 957 set_fs(old_fs);
958 }
92f45bad
HV		 959
960 /* Special case: even after an error we need to put the
961 results back for these ioctls since the error_idx will
962 contain information on which control failed. */
963 switch (cmd) {
964 case VIDIOC_G_EXT_CTRLS:
965 case VIDIOC_S_EXT_CTRLS:
966 case VIDIOC_TRY_EXT_CTRLS:
967 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
968 err = -EFAULT;
969 break;
970 }
971 if (err)
972 return err;
973
974 switch (cmd) {
92f45bad
HV		 975 case VIDIOC_S_INPUT:
976 case VIDIOC_S_OUTPUT:
977 case VIDIOC_G_INPUT:
978 case VIDIOC_G_OUTPUT:
979 err = put_user(((s32)karg.vi), (s32 __user *)up);
980 break;
a113bc78 981
92f45bad
HV		 982 case VIDIOC_G_FBUF:
983 err = put_v4l2_framebuffer32(&karg.v2fb, up);
984 break;
985
2330fb82
HV		 986 case VIDIOC_DQEVENT:
987 err = put_v4l2_event32(&karg.v2ev, up);
988 break;
989
dd519bb3
HV		 990 case VIDIOC_G_EDID:
991 case VIDIOC_S_EDID:
992 err = put_v4l2_edid32(&karg.v2edid, up);
ed45ce2c
HV		 993 break;
994
92f45bad
HV		 995 case VIDIOC_G_FMT:
996 case VIDIOC_S_FMT:
997 case VIDIOC_TRY_FMT:
998 err = put_v4l2_format32(&karg.v2f, up);
999 break;
1000
2150158b
GL		 1001 case VIDIOC_CREATE_BUFS:
1002 err = put_v4l2_create32(&karg.v2crt, up);
1003 break;
1004
92f45bad
HV		 1005 case VIDIOC_QUERYBUF:
1006 case VIDIOC_QBUF:
1007 case VIDIOC_DQBUF:
1008 err = put_v4l2_buffer32(&karg.v2b, up);
1009 break;
1010
1011 case VIDIOC_ENUMSTD:
1012 err = put_v4l2_standard32(&karg.v2s, up);
1013 break;
1014
1015 case VIDIOC_ENUMINPUT:
1016 err = put_v4l2_input32(&karg.v2i, up);
1017 break;
0d0fbf81 1018 }
0d0fbf81
AB		 1019 return err;
1020}
1021
9bb7cde7 1022long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
0d0fbf81 1023{
b9d0aa6e 1024 struct video_device *vdev = video_devdata(file);
069b7479 1025 long ret = -ENOIOCTLCMD;
0d0fbf81 1026
c6d7ba8b 1027 if (!file->f_op->unlocked_ioctl)
0d0fbf81
AB		 1028 return ret;
1029
ab58a301 1030 if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
0d0fbf81 1031 ret = do_video_ioctl(file, cmd, arg);
ab58a301
HV		 1032 else if (vdev->fops->compat_ioctl32)
1033 ret = vdev->fops->compat_ioctl32(file, cmd, arg);
0d0fbf81 1034
ab58a301
HV		 1035 if (ret == -ENOIOCTLCMD)
1036 pr_warn("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1037 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
e8efb71d 1038 return ret;
0d0fbf81 1039}
9bb7cde7 1040EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
Linux kernel - Deliverables
This page took 0.840873 seconds and 5 git commands to generate.