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[media] DocBook: document tuner RF gain control
[linux-2.6-block.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
d5beb67b
HV		 150static inline int get_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up)
151{
152 if (copy_from_user(kp, up, sizeof(struct v4l2_sdr_format)))
153 return -EFAULT;
154 return 0;
155}
156
157static inline int put_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up)
158{
159 if (copy_to_user(up, kp, sizeof(struct v4l2_sdr_format)))
160 return -EFAULT;
161 return 0;
162}
163
d1f81da2 164struct v4l2_format32 {
6016af82 165 __u32 type; /* enum v4l2_buf_type */
d1f81da2 166 union {
92f45bad 167 struct v4l2_pix_format pix;
52a3082f 168 struct v4l2_pix_format_mplane pix_mp;
92f45bad
HV		 169 struct v4l2_window32 win;
170 struct v4l2_vbi_format vbi;
171 struct v4l2_sliced_vbi_format sliced;
d5beb67b 172 struct v4l2_sdr_format sdr;
d1f81da2 173 __u8 raw_data[200]; /* user-defined */
cf664a64
PDM		 174 } fmt;
175};
176
09362ec2
GL		 177/**
178 * struct v4l2_create_buffers32 - VIDIOC_CREATE_BUFS32 argument
179 * @index: on return, index of the first created buffer
180 * @count: entry: number of requested buffers,
181 * return: number of created buffers
182 * @memory: buffer memory type
183 * @format: frame format, for which buffers are requested
184 * @reserved: future extensions
185 */
2150158b 186struct v4l2_create_buffers32 {
09362ec2 187 __u32 index;
2150158b 188 __u32 count;
6016af82 189 __u32 memory; /* enum v4l2_memory */
09362ec2 190 struct v4l2_format32 format;
2150158b
GL		 191 __u32 reserved[8];
192};
193
194static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
cf664a64 195{
ec77581a
GL		 196 if (get_user(kp->type, &up->type))
197 return -EFAULT;
198
cf664a64
PDM		 199 switch (kp->type) {
200 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
92f45bad 201 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
cf664a64 202 return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
52a3082f
PO		 203 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
204 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
205 return get_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
206 &up->fmt.pix_mp);
cf664a64 207 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
92f45bad 208 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
cf664a64
PDM		 209 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
210 case V4L2_BUF_TYPE_VBI_CAPTURE:
92f45bad 211 case V4L2_BUF_TYPE_VBI_OUTPUT:
cf664a64 212 return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
92f45bad
HV		 213 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
214 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
215 return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
d5beb67b
HV		 216 case V4L2_BUF_TYPE_SDR_CAPTURE:
217 return get_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr);
cf664a64 218 default:
d5beb67b 219 pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
cf664a64 220 kp->type);
92f45bad 221 return -EINVAL;
cf664a64
PDM		 222 }
223}
224
2150158b
GL		 225static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
226{
ec77581a
GL		 227 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)))
228 return -EFAULT;
2150158b
GL		 229 return __get_v4l2_format32(kp, up);
230}
231
232static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
233{
234 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) ||
ec77581a
GL		 235 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format)))
236 return -EFAULT;
2150158b
GL		 237 return __get_v4l2_format32(&kp->format, &up->format);
238}
239
240static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
cf664a64 241{
6ed9b285
GL		 242 if (put_user(kp->type, &up->type))
243 return -EFAULT;
244
cf664a64
PDM		 245 switch (kp->type) {
246 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
92f45bad 247 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
cf664a64 248 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
52a3082f
PO		 249 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
250 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
251 return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
252 &up->fmt.pix_mp);
cf664a64 253 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
92f45bad 254 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
cf664a64
PDM		 255 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
256 case V4L2_BUF_TYPE_VBI_CAPTURE:
92f45bad 257 case V4L2_BUF_TYPE_VBI_OUTPUT:
cf664a64 258 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
92f45bad
HV		 259 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
260 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
261 return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
d5beb67b
HV		 262 case V4L2_BUF_TYPE_SDR_CAPTURE:
263 return put_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr);
cf664a64 264 default:
d5beb67b 265 pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
92f45bad
HV		 266 kp->type);
267 return -EINVAL;
cf664a64
PDM		 268 }
269}
270
2150158b
GL		 271static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
272{
6ed9b285 273 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)))
2150158b
GL		 274 return -EFAULT;
275 return __put_v4l2_format32(kp, up);
276}
277
278static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
279{
280 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
6ed9b285
GL		 281 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)))
282 return -EFAULT;
2150158b
GL		 283 return __put_v4l2_format32(&kp->format, &up->format);
284}
285
d1f81da2 286struct v4l2_standard32 {
cf664a64 287 __u32 index;
655e9780 288 compat_u64 id;
cf664a64
PDM		 289 __u8 name[24];
290 struct v4l2_fract frameperiod; /* Frames, not fields */
291 __u32 framelines;
292 __u32 reserved[4];
293};
294
295static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
296{
297 /* other fields are not set by the user, nor used by the driver */
a113bc78
GM		 298 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
299 get_user(kp->index, &up->index))
300 return -EFAULT;
301 return 0;
cf664a64
PDM		 302}
303
304static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
305{
d1f81da2 306 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
a113bc78 307 put_user(kp->index, &up->index) ||
655e9780 308 put_user(kp->id, &up->id) ||
a113bc78
GM		 309 copy_to_user(up->name, kp->name, 24) ||
310 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
311 put_user(kp->framelines, &up->framelines) ||
312 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
313 return -EFAULT;
314 return 0;
315}
316
52a3082f
PO		 317struct v4l2_plane32 {
318 __u32 bytesused;
319 __u32 length;
320 union {
321 __u32 mem_offset;
322 compat_long_t userptr;
051c7788 323 __s32 fd;
52a3082f
PO		 324 } m;
325 __u32 data_offset;
326 __u32 reserved[11];
327};
328
d1f81da2 329struct v4l2_buffer32 {
cf664a64 330 __u32 index;
6016af82 331 __u32 type; /* enum v4l2_buf_type */
cf664a64
PDM		 332 __u32 bytesused;
333 __u32 flags;
6016af82 334 __u32 field; /* enum v4l2_field */
cf664a64
PDM		 335 struct compat_timeval timestamp;
336 struct v4l2_timecode timecode;
337 __u32 sequence;
338
339 /* memory location */
6016af82 340 __u32 memory; /* enum v4l2_memory */
cf664a64
PDM		 341 union {
342 __u32 offset;
343 compat_long_t userptr;
52a3082f 344 compat_caddr_t planes;
051c7788 345 __s32 fd;
cf664a64
PDM		 346 } m;
347 __u32 length;
2b719d7b 348 __u32 reserved2;
cf664a64
PDM		 349 __u32 reserved;
350};
351
8ae632b1 352static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
52a3082f
PO		 353 enum v4l2_memory memory)
354{
355 void __user *up_pln;
356 compat_long_t p;
357
358 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
359 copy_in_user(&up->data_offset, &up32->data_offset,
360 sizeof(__u32)))
361 return -EFAULT;
362
363 if (memory == V4L2_MEMORY_USERPTR) {
364 if (get_user(p, &up32->m.userptr))
365 return -EFAULT;
366 up_pln = compat_ptr(p);
367 if (put_user((unsigned long)up_pln, &up->m.userptr))
368 return -EFAULT;
051c7788
SS		 369 } else if (memory == V4L2_MEMORY_DMABUF) {
370 if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int)))
371 return -EFAULT;
52a3082f
PO		 372 } else {
373 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
374 sizeof(__u32)))
375 return -EFAULT;
376 }
377
378 return 0;
379}
380
8ae632b1 381static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
52a3082f
PO		 382 enum v4l2_memory memory)
383{
384 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
385 copy_in_user(&up32->data_offset, &up->data_offset,
386 sizeof(__u32)))
387 return -EFAULT;
388
389 /* For MMAP, driver might've set up the offset, so copy it back.
390 * USERPTR stays the same (was userspace-provided), so no copying. */
391 if (memory == V4L2_MEMORY_MMAP)
392 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
393 sizeof(__u32)))
394 return -EFAULT;
051c7788
SS		 395 /* For DMABUF, driver might've set up the fd, so copy it back. */
396 if (memory == V4L2_MEMORY_DMABUF)
397 if (copy_in_user(&up32->m.fd, &up->m.fd,
398 sizeof(int)))
399 return -EFAULT;
52a3082f
PO		 400
401 return 0;
402}
403
cf664a64
PDM		 404static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
405{
52a3082f
PO		 406 struct v4l2_plane32 __user *uplane32;
407 struct v4l2_plane __user *uplane;
408 compat_caddr_t p;
409 int num_planes;
410 int ret;
cf664a64 411
a113bc78
GM		 412 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
413 get_user(kp->index, &up->index) ||
414 get_user(kp->type, &up->type) ||
415 get_user(kp->flags, &up->flags) ||
cc831f84 416 get_user(kp->memory, &up->memory))
a113bc78 417 return -EFAULT;
52a3082f
PO		 418
419 if (V4L2_TYPE_IS_OUTPUT(kp->type))
420 if (get_user(kp->bytesused, &up->bytesused) ||
421 get_user(kp->field, &up->field) ||
422 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
423 get_user(kp->timestamp.tv_usec,
424 &up->timestamp.tv_usec))
22c859fa 425 return -EFAULT;
cf664a64 426
52a3082f
PO		 427 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
428 if (get_user(kp->length, &up->length))
5b1a43d7
AV		 429 return -EFAULT;
430
52a3082f
PO		 431 num_planes = kp->length;
432 if (num_planes == 0) {
433 kp->m.planes = NULL;
434 /* num_planes == 0 is legal, e.g. when userspace doesn't
435 * need planes array on DQBUF*/
436 return 0;
cf664a64 437 }
52a3082f
PO		 438
439 if (get_user(p, &up->m.planes))
a113bc78 440 return -EFAULT;
52a3082f
PO		 441
442 uplane32 = compat_ptr(p);
443 if (!access_ok(VERIFY_READ, uplane32,
444 num_planes * sizeof(struct v4l2_plane32)))
445 return -EFAULT;
446
447 /* We don't really care if userspace decides to kill itself
448 * by passing a very big num_planes value */
449 uplane = compat_alloc_user_space(num_planes *
450 sizeof(struct v4l2_plane));
8ae632b1 451 kp->m.planes = (__force struct v4l2_plane *)uplane;
52a3082f
PO		 452
453 while (--num_planes >= 0) {
454 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
455 if (ret)
456 return ret;
457 ++uplane;
458 ++uplane32;
459 }
460 } else {
461 switch (kp->memory) {
462 case V4L2_MEMORY_MMAP:
463 if (get_user(kp->length, &up->length) ||
464 get_user(kp->m.offset, &up->m.offset))
465 return -EFAULT;
466 break;
467 case V4L2_MEMORY_USERPTR:
468 {
469 compat_long_t tmp;
470
471 if (get_user(kp->length, &up->length) ||
472 get_user(tmp, &up->m.userptr))
473 return -EFAULT;
474
475 kp->m.userptr = (unsigned long)compat_ptr(tmp);
476 }
477 break;
478 case V4L2_MEMORY_OVERLAY:
479 if (get_user(kp->m.offset, &up->m.offset))
480 return -EFAULT;
481 break;
051c7788
SS		 482 case V4L2_MEMORY_DMABUF:
483 if (get_user(kp->m.fd, &up->m.fd))
484 return -EFAULT;
485 break;
52a3082f 486 }
cf664a64 487 }
52a3082f 488
cf664a64
PDM		 489 return 0;
490}
491
492static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
493{
52a3082f
PO		 494 struct v4l2_plane32 __user *uplane32;
495 struct v4l2_plane __user *uplane;
496 compat_caddr_t p;
497 int num_planes;
498 int ret;
499
a113bc78
GM		 500 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
501 put_user(kp->index, &up->index) ||
502 put_user(kp->type, &up->type) ||
503 put_user(kp->flags, &up->flags) ||
cc831f84 504 put_user(kp->memory, &up->memory))
a113bc78 505 return -EFAULT;
52a3082f 506
a113bc78
GM		 507 if (put_user(kp->bytesused, &up->bytesused) ||
508 put_user(kp->field, &up->field) ||
509 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
510 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
511 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
512 put_user(kp->sequence, &up->sequence) ||
2b719d7b 513 put_user(kp->reserved2, &up->reserved2) ||
cc831f84 514 put_user(kp->reserved, &up->reserved))
a113bc78 515 return -EFAULT;
52a3082f
PO		 516
517 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
518 num_planes = kp->length;
519 if (num_planes == 0)
520 return 0;
521
8ae632b1 522 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
52a3082f
PO		 523 if (get_user(p, &up->m.planes))
524 return -EFAULT;
525 uplane32 = compat_ptr(p);
526
527 while (--num_planes >= 0) {
528 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
529 if (ret)
530 return ret;
531 ++uplane;
532 ++uplane32;
533 }
534 } else {
535 switch (kp->memory) {
536 case V4L2_MEMORY_MMAP:
537 if (put_user(kp->length, &up->length) ||
538 put_user(kp->m.offset, &up->m.offset))
539 return -EFAULT;
540 break;
541 case V4L2_MEMORY_USERPTR:
542 if (put_user(kp->length, &up->length) ||
543 put_user(kp->m.userptr, &up->m.userptr))
544 return -EFAULT;
545 break;
546 case V4L2_MEMORY_OVERLAY:
547 if (put_user(kp->m.offset, &up->m.offset))
548 return -EFAULT;
549 break;
051c7788
SS		 550 case V4L2_MEMORY_DMABUF:
551 if (put_user(kp->m.fd, &up->m.fd))
552 return -EFAULT;
553 break;
52a3082f
PO		 554 }
555 }
556
cf664a64
PDM		 557 return 0;
558}
559
d1f81da2 560struct v4l2_framebuffer32 {
cf664a64
PDM		 561 __u32 capability;
562 __u32 flags;
563 compat_caddr_t base;
d52e2381
LP		 564 struct {
565 __u32 width;
566 __u32 height;
567 __u32 pixelformat;
568 __u32 field;
569 __u32 bytesperline;
570 __u32 sizeimage;
571 __u32 colorspace;
572 __u32 priv;
573 } fmt;
cf664a64
PDM		 574};
575
13d133bc
PDM		 576static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
577{
578 u32 tmp;
579
a113bc78
GM		 580 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
581 get_user(tmp, &up->base) ||
582 get_user(kp->capability, &up->capability) ||
d52e2381
LP		 583 get_user(kp->flags, &up->flags) ||
584 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
a113bc78 585 return -EFAULT;
8ae632b1 586 kp->base = (__force void *)compat_ptr(tmp);
13d133bc
PDM		 587 return 0;
588}
589
cf664a64
PDM		 590static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
591{
592 u32 tmp = (u32)((unsigned long)kp->base);
593
d1f81da2 594 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
a113bc78
GM		 595 put_user(tmp, &up->base) ||
596 put_user(kp->capability, &up->capability) ||
d52e2381
LP		 597 put_user(kp->flags, &up->flags) ||
598 copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt)))
a113bc78 599 return -EFAULT;
cf664a64
PDM		 600 return 0;
601}
602
92f45bad
HV		 603struct v4l2_input32 {
604 __u32 index; /* Which input */
605 __u8 name[32]; /* Label */
606 __u32 type; /* Type of input */
607 __u32 audioset; /* Associated audios (bitfield) */
608 __u32 tuner; /* Associated tuner */
655e9780 609 compat_u64 std;
92f45bad
HV		 610 __u32 status;
611 __u32 reserved[4];
655e9780 612};
92f45bad
HV		 613
614/* The 64-bit v4l2_input struct has extra padding at the end of the struct.
615 Otherwise it is identical to the 32-bit version. */
616static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
a113bc78 617{
92f45bad 618 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
5b1a43d7 619 return -EFAULT;
a113bc78
GM		 620 return 0;
621}
622
92f45bad 623static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
a113bc78 624{
92f45bad 625 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
5b1a43d7 626 return -EFAULT;
a113bc78
GM		 627 return 0;
628}
629
92f45bad 630struct v4l2_ext_controls32 {
28c50292
RR		 631 __u32 ctrl_class;
632 __u32 count;
633 __u32 error_idx;
634 __u32 reserved[2];
635 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
eb4eeccc
MCC		 636};
637
6b5a9492
HV		 638struct v4l2_ext_control32 {
639 __u32 id;
640 __u32 size;
641 __u32 reserved2[1];
642 union {
643 __s32 value;
644 __s64 value64;
645 compat_caddr_t string; /* actually char * */
646 };
647} __attribute__ ((packed));
648
649/* The following function really belong in v4l2-common, but that causes
650 a circular dependency between modules. We need to think about this, but
651 for now this will do. */
652
653/* Return non-zero if this control is a pointer type. Currently only
fdf82dc2 654 type STRING is a pointer type. */
6b5a9492
HV		 655static inline int ctrl_is_pointer(u32 id)
656{
fdf82dc2
EV		 657 switch (id) {
658 case V4L2_CID_RDS_TX_PS_NAME:
659 case V4L2_CID_RDS_TX_RADIO_TEXT:
660 return 1;
661 default:
662 return 0;
663 }
6b5a9492
HV		 664}
665
92f45bad 666static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
eb4eeccc 667{
6b5a9492 668 struct v4l2_ext_control32 __user *ucontrols;
92f45bad
HV		 669 struct v4l2_ext_control __user *kcontrols;
670 int n;
671 compat_caddr_t p;
672
673 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
674 get_user(kp->ctrl_class, &up->ctrl_class) ||
675 get_user(kp->count, &up->count) ||
676 get_user(kp->error_idx, &up->error_idx) ||
28c50292
RR		 677 copy_from_user(kp->reserved, up->reserved,
678 sizeof(kp->reserved)))
92f45bad
HV		 679 return -EFAULT;
680 n = kp->count;
681 if (n == 0) {
682 kp->controls = NULL;
683 return 0;
684 }
685 if (get_user(p, &up->controls))
686 return -EFAULT;
687 ucontrols = compat_ptr(p);
52a3082f
PO		 688 if (!access_ok(VERIFY_READ, ucontrols,
689 n * sizeof(struct v4l2_ext_control32)))
92f45bad
HV		 690 return -EFAULT;
691 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
8ae632b1 692 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
92f45bad 693 while (--n >= 0) {
8ae632b1
HV		 694 u32 id;
695
52a3082f 696 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
92f45bad 697 return -EFAULT;
8ae632b1
HV		 698 if (get_user(id, &kcontrols->id))
699 return -EFAULT;
700 if (ctrl_is_pointer(id)) {
6b5a9492
HV		 701 void __user *s;
702
703 if (get_user(p, &ucontrols->string))
704 return -EFAULT;
705 s = compat_ptr(p);
706 if (put_user(s, &kcontrols->string))
707 return -EFAULT;
708 }
92f45bad
HV		 709 ucontrols++;
710 kcontrols++;
711 }
eb4eeccc
MCC		 712 return 0;
713}
714
92f45bad 715static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
0d0fbf81 716{
6b5a9492 717 struct v4l2_ext_control32 __user *ucontrols;
8ae632b1
HV		 718 struct v4l2_ext_control __user *kcontrols =
719 (__force struct v4l2_ext_control __user *)kp->controls;
92f45bad
HV		 720 int n = kp->count;
721 compat_caddr_t p;
722
723 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
724 put_user(kp->ctrl_class, &up->ctrl_class) ||
725 put_user(kp->count, &up->count) ||
726 put_user(kp->error_idx, &up->error_idx) ||
727 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
728 return -EFAULT;
729 if (!kp->count)
730 return 0;
a113bc78 731
92f45bad 732 if (get_user(p, &up->controls))
0d0fbf81 733 return -EFAULT;
92f45bad 734 ucontrols = compat_ptr(p);
52a3082f
PO		 735 if (!access_ok(VERIFY_WRITE, ucontrols,
736 n * sizeof(struct v4l2_ext_control32)))
0d0fbf81
AB		 737 return -EFAULT;
738
92f45bad 739 while (--n >= 0) {
6b5a9492 740 unsigned size = sizeof(*ucontrols);
8ae632b1 741 u32 id;
6b5a9492 742
8ae632b1
HV		 743 if (get_user(id, &kcontrols->id))
744 return -EFAULT;
6b5a9492
HV		 745 /* Do not modify the pointer when copying a pointer control.
746 The contents of the pointer was changed, not the pointer
747 itself. */
8ae632b1 748 if (ctrl_is_pointer(id))
6b5a9492
HV		 749 size -= sizeof(ucontrols->value64);
750 if (copy_in_user(ucontrols, kcontrols, size))
92f45bad
HV		 751 return -EFAULT;
752 ucontrols++;
753 kcontrols++;
0d0fbf81 754 }
92f45bad 755 return 0;
0d0fbf81 756}
92f45bad 757
2330fb82
HV		 758struct v4l2_event32 {
759 __u32 type;
760 union {
655e9780 761 compat_s64 value64;
2330fb82
HV		 762 __u8 data[64];
763 } u;
764 __u32 pending;
765 __u32 sequence;
766 struct compat_timespec timestamp;
767 __u32 id;
768 __u32 reserved[8];
769};
770
771static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
772{
773 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
774 put_user(kp->type, &up->type) ||
775 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
776 put_user(kp->pending, &up->pending) ||
777 put_user(kp->sequence, &up->sequence) ||
81993e81 778 compat_put_timespec(&kp->timestamp, &up->timestamp) ||
2330fb82
HV		 779 put_user(kp->id, &up->id) ||
780 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
781 return -EFAULT;
782 return 0;
783}
784
dd519bb3 785struct v4l2_edid32 {
ed45ce2c
HV		 786 __u32 pad;
787 __u32 start_block;
788 __u32 blocks;
789 __u32 reserved[5];
790 compat_caddr_t edid;
791};
792
dd519bb3 793static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
ed45ce2c
HV		 794{
795 u32 tmp;
796
dd519bb3 797 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) ||
ed45ce2c
HV		 798 get_user(kp->pad, &up->pad) ||
799 get_user(kp->start_block, &up->start_block) ||
800 get_user(kp->blocks, &up->blocks) ||
801 get_user(tmp, &up->edid) ||
802 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
803 return -EFAULT;
8ae632b1 804 kp->edid = (__force u8 *)compat_ptr(tmp);
ed45ce2c
HV		 805 return 0;
806}
807
dd519bb3 808static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
ed45ce2c
HV		 809{
810 u32 tmp = (u32)((unsigned long)kp->edid);
811
dd519bb3 812 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) ||
ed45ce2c
HV		 813 put_user(kp->pad, &up->pad) ||
814 put_user(kp->start_block, &up->start_block) ||
815 put_user(kp->blocks, &up->blocks) ||
816 put_user(tmp, &up->edid) ||
8ae632b1 817 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
ed45ce2c
HV		 818 return -EFAULT;
819 return 0;
820}
821
822
92f45bad
HV		 823#define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
824#define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
825#define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
826#define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
827#define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
828#define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
829#define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
830#define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
831#define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
dd519bb3
HV		 832#define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
833#define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
92f45bad
HV		 834#define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
835#define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
836#define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
837#define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
2330fb82 838#define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
2150158b
GL		 839#define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
840#define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
92f45bad
HV		 841
842#define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
92f45bad
HV		 843#define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
844#define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
845#define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
846#define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
847#define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
848#define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
0d0fbf81 849
069b7479 850static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
0d0fbf81
AB		 851{
852 union {
cf664a64
PDM		 853 struct v4l2_format v2f;
854 struct v4l2_buffer v2b;
855 struct v4l2_framebuffer v2fb;
a113bc78 856 struct v4l2_input v2i;
92f45bad
HV		 857 struct v4l2_standard v2s;
858 struct v4l2_ext_controls v2ecs;
2330fb82 859 struct v4l2_event v2ev;
2150158b 860 struct v4l2_create_buffers v2crt;
dd519bb3 861 struct v4l2_edid v2edid;
0d0fbf81 862 unsigned long vx;
92f45bad 863 int vi;
0d0fbf81 864 } karg;
0d0fbf81 865 void __user *up = compat_ptr(arg);
cf664a64 866 int compatible_arg = 1;
069b7479 867 long err = 0;
0d0fbf81
AB		 868
869 /* First, convert the command. */
d1f81da2 870 switch (cmd) {
92f45bad
HV		 871 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
872 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
873 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
874 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
875 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
876 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
877 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
878 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
879 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
880 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
881 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
882 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
883 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
2330fb82 884 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
92f45bad 885 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
92f45bad
HV		 886 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
887 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
888 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
889 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
890 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
891 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
2150158b
GL		 892 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
893 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
dd519bb3
HV		 894 case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break;
895 case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break;
92f45bad 896 }
0d0fbf81 897
d1f81da2 898 switch (cmd) {
cf664a64 899 case VIDIOC_OVERLAY:
13d133bc
PDM		 900 case VIDIOC_STREAMON:
901 case VIDIOC_STREAMOFF:
92f45bad
HV		 902 case VIDIOC_S_INPUT:
903 case VIDIOC_S_OUTPUT:
904 err = get_user(karg.vi, (s32 __user *)up);
905 compatible_arg = 0;
0d0fbf81 906 break;
13d133bc 907
92f45bad
HV		 908 case VIDIOC_G_INPUT:
909 case VIDIOC_G_OUTPUT:
13d133bc
PDM		 910 compatible_arg = 0;
911 break;
cf664a64 912
dd519bb3
HV		 913 case VIDIOC_G_EDID:
914 case VIDIOC_S_EDID:
915 err = get_v4l2_edid32(&karg.v2edid, up);
ed45ce2c
HV		 916 compatible_arg = 0;
917 break;
918
cf664a64
PDM		 919 case VIDIOC_G_FMT:
920 case VIDIOC_S_FMT:
921 case VIDIOC_TRY_FMT:
922 err = get_v4l2_format32(&karg.v2f, up);
923 compatible_arg = 0;
924 break;
925
2150158b
GL		 926 case VIDIOC_CREATE_BUFS:
927 err = get_v4l2_create32(&karg.v2crt, up);
928 compatible_arg = 0;
929 break;
930
931 case VIDIOC_PREPARE_BUF:
cf664a64
PDM		 932 case VIDIOC_QUERYBUF:
933 case VIDIOC_QBUF:
934 case VIDIOC_DQBUF:
935 err = get_v4l2_buffer32(&karg.v2b, up);
936 compatible_arg = 0;
937 break;
938
92f45bad
HV		 939 case VIDIOC_S_FBUF:
940 err = get_v4l2_framebuffer32(&karg.v2fb, up);
a113bc78
GM		 941 compatible_arg = 0;
942 break;
943
92f45bad 944 case VIDIOC_G_FBUF:
cf664a64
PDM		 945 compatible_arg = 0;
946 break;
947
92f45bad
HV		 948 case VIDIOC_ENUMSTD:
949 err = get_v4l2_standard32(&karg.v2s, up);
a113bc78
GM		 950 compatible_arg = 0;
951 break;
952
92f45bad 953 case VIDIOC_ENUMINPUT:
a113bc78
GM		 954 err = get_v4l2_input32(&karg.v2i, up);
955 compatible_arg = 0;
956 break;
957
92f45bad
HV		 958 case VIDIOC_G_EXT_CTRLS:
959 case VIDIOC_S_EXT_CTRLS:
960 case VIDIOC_TRY_EXT_CTRLS:
961 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
a113bc78
GM		 962 compatible_arg = 0;
963 break;
2330fb82
HV		 964 case VIDIOC_DQEVENT:
965 compatible_arg = 0;
966 break;
92f45bad 967 }
d1f81da2 968 if (err)
92f45bad 969 return err;
0d0fbf81 970
d1f81da2 971 if (compatible_arg)
92f45bad 972 err = native_ioctl(file, cmd, (unsigned long)up);
cf664a64
PDM		 973 else {
974 mm_segment_t old_fs = get_fs();
0d0fbf81 975
cf664a64 976 set_fs(KERNEL_DS);
92f45bad 977 err = native_ioctl(file, cmd, (unsigned long)&karg);
cf664a64
PDM		 978 set_fs(old_fs);
979 }
92f45bad
HV		 980
981 /* Special case: even after an error we need to put the
982 results back for these ioctls since the error_idx will
983 contain information on which control failed. */
984 switch (cmd) {
985 case VIDIOC_G_EXT_CTRLS:
986 case VIDIOC_S_EXT_CTRLS:
987 case VIDIOC_TRY_EXT_CTRLS:
988 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
989 err = -EFAULT;
990 break;
991 }
992 if (err)
993 return err;
994
995 switch (cmd) {
92f45bad
HV		 996 case VIDIOC_S_INPUT:
997 case VIDIOC_S_OUTPUT:
998 case VIDIOC_G_INPUT:
999 case VIDIOC_G_OUTPUT:
1000 err = put_user(((s32)karg.vi), (s32 __user *)up);
1001 break;
a113bc78 1002
92f45bad
HV		 1003 case VIDIOC_G_FBUF:
1004 err = put_v4l2_framebuffer32(&karg.v2fb, up);
1005 break;
1006
2330fb82
HV		 1007 case VIDIOC_DQEVENT:
1008 err = put_v4l2_event32(&karg.v2ev, up);
1009 break;
1010
dd519bb3
HV		 1011 case VIDIOC_G_EDID:
1012 case VIDIOC_S_EDID:
1013 err = put_v4l2_edid32(&karg.v2edid, up);
ed45ce2c
HV		 1014 break;
1015
92f45bad
HV		 1016 case VIDIOC_G_FMT:
1017 case VIDIOC_S_FMT:
1018 case VIDIOC_TRY_FMT:
1019 err = put_v4l2_format32(&karg.v2f, up);
1020 break;
1021
2150158b
GL		 1022 case VIDIOC_CREATE_BUFS:
1023 err = put_v4l2_create32(&karg.v2crt, up);
1024 break;
1025
92f45bad
HV		 1026 case VIDIOC_QUERYBUF:
1027 case VIDIOC_QBUF:
1028 case VIDIOC_DQBUF:
1029 err = put_v4l2_buffer32(&karg.v2b, up);
1030 break;
1031
1032 case VIDIOC_ENUMSTD:
1033 err = put_v4l2_standard32(&karg.v2s, up);
1034 break;
1035
1036 case VIDIOC_ENUMINPUT:
1037 err = put_v4l2_input32(&karg.v2i, up);
1038 break;
0d0fbf81 1039 }
0d0fbf81
AB		 1040 return err;
1041}
1042
9bb7cde7 1043long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
0d0fbf81 1044{
b9d0aa6e 1045 struct video_device *vdev = video_devdata(file);
069b7479 1046 long ret = -ENOIOCTLCMD;
0d0fbf81 1047
c6d7ba8b 1048 if (!file->f_op->unlocked_ioctl)
0d0fbf81
AB		 1049 return ret;
1050
ab58a301 1051 if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
0d0fbf81 1052 ret = do_video_ioctl(file, cmd, arg);
ab58a301
HV		 1053 else if (vdev->fops->compat_ioctl32)
1054 ret = vdev->fops->compat_ioctl32(file, cmd, arg);
0d0fbf81 1055
ab58a301 1056 if (ret == -ENOIOCTLCMD)
9ec32cc7
HV		 1057 pr_debug("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1058 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
e8efb71d 1059 return ret;
0d0fbf81 1060}
9bb7cde7 1061EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
Linux 6.x block layer and io_uring tree(s)