2 * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
3 * Separated from fs stuff by Arnd Bergmann <arnd@arndb.de>
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
8 * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
9 * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be)
10 * Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
12 * These routines maintain argument size conversion between 32bit and 64bit
16 #include <linux/compat.h>
17 #include <linux/module.h>
18 #include <linux/videodev2.h>
19 #include <linux/v4l2-subdev.h>
20 #include <media/v4l2-dev.h>
21 #include <media/v4l2-ioctl.h>
23 static long native_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
25 long ret
= -ENOIOCTLCMD
;
27 if (file
->f_op
->unlocked_ioctl
)
28 ret
= file
->f_op
->unlocked_ioctl(file
, cmd
, arg
);
39 struct v4l2_window32
{
41 __u32 field
; /* enum v4l2_field */
43 compat_caddr_t clips
; /* actually struct v4l2_clip32 * */
45 compat_caddr_t bitmap
;
48 static int get_v4l2_window32(struct v4l2_window
*kp
, struct v4l2_window32 __user
*up
)
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
))
56 if (kp
->clipcount
> 2048)
59 struct v4l2_clip32 __user
*uclips
;
60 struct v4l2_clip __user
*kclips
;
61 int n
= kp
->clipcount
;
64 if (get_user(p
, &up
->clips
))
66 uclips
= compat_ptr(p
);
67 kclips
= compat_alloc_user_space(n
* sizeof(struct v4l2_clip
));
70 if (copy_in_user(&kclips
->c
, &uclips
->c
, sizeof(uclips
->c
)))
72 if (put_user(n
? kclips
+ 1 : NULL
, &kclips
->next
))
82 static int put_v4l2_window32(struct v4l2_window
*kp
, struct v4l2_window32 __user
*up
)
84 if (copy_to_user(&up
->w
, &kp
->w
, sizeof(kp
->w
)) ||
85 put_user(kp
->field
, &up
->field
) ||
86 put_user(kp
->chromakey
, &up
->chromakey
) ||
87 put_user(kp
->clipcount
, &up
->clipcount
))
92 static inline int get_v4l2_pix_format(struct v4l2_pix_format
*kp
, struct v4l2_pix_format __user
*up
)
94 if (copy_from_user(kp
, up
, sizeof(struct v4l2_pix_format
)))
99 static inline int get_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane
*kp
,
100 struct v4l2_pix_format_mplane __user
*up
)
102 if (copy_from_user(kp
, up
, sizeof(struct v4l2_pix_format_mplane
)))
107 static inline int put_v4l2_pix_format(struct v4l2_pix_format
*kp
, struct v4l2_pix_format __user
*up
)
109 if (copy_to_user(up
, kp
, sizeof(struct v4l2_pix_format
)))
114 static inline int put_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane
*kp
,
115 struct v4l2_pix_format_mplane __user
*up
)
117 if (copy_to_user(up
, kp
, sizeof(struct v4l2_pix_format_mplane
)))
122 static inline int get_v4l2_vbi_format(struct v4l2_vbi_format
*kp
, struct v4l2_vbi_format __user
*up
)
124 if (copy_from_user(kp
, up
, sizeof(struct v4l2_vbi_format
)))
129 static inline int put_v4l2_vbi_format(struct v4l2_vbi_format
*kp
, struct v4l2_vbi_format __user
*up
)
131 if (copy_to_user(up
, kp
, sizeof(struct v4l2_vbi_format
)))
136 static inline int get_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format
*kp
, struct v4l2_sliced_vbi_format __user
*up
)
138 if (copy_from_user(kp
, up
, sizeof(struct v4l2_sliced_vbi_format
)))
143 static inline int put_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format
*kp
, struct v4l2_sliced_vbi_format __user
*up
)
145 if (copy_to_user(up
, kp
, sizeof(struct v4l2_sliced_vbi_format
)))
150 struct v4l2_format32
{
151 __u32 type
; /* enum v4l2_buf_type */
153 struct v4l2_pix_format pix
;
154 struct v4l2_pix_format_mplane pix_mp
;
155 struct v4l2_window32 win
;
156 struct v4l2_vbi_format vbi
;
157 struct v4l2_sliced_vbi_format sliced
;
158 __u8 raw_data
[200]; /* user-defined */
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
171 struct v4l2_create_buffers32
{
174 __u32 memory
; /* enum v4l2_memory */
175 struct v4l2_format32 format
;
179 static int __get_v4l2_format32(struct v4l2_format
*kp
, struct v4l2_format32 __user
*up
)
181 if (get_user(kp
->type
, &up
->type
))
185 case V4L2_BUF_TYPE_VIDEO_CAPTURE
:
186 case V4L2_BUF_TYPE_VIDEO_OUTPUT
:
187 return get_v4l2_pix_format(&kp
->fmt
.pix
, &up
->fmt
.pix
);
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
,
192 case V4L2_BUF_TYPE_VIDEO_OVERLAY
:
193 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
:
194 return get_v4l2_window32(&kp
->fmt
.win
, &up
->fmt
.win
);
195 case V4L2_BUF_TYPE_VBI_CAPTURE
:
196 case V4L2_BUF_TYPE_VBI_OUTPUT
:
197 return get_v4l2_vbi_format(&kp
->fmt
.vbi
, &up
->fmt
.vbi
);
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
);
202 printk(KERN_INFO
"compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
208 static int get_v4l2_format32(struct v4l2_format
*kp
, struct v4l2_format32 __user
*up
)
210 if (!access_ok(VERIFY_READ
, up
, sizeof(struct v4l2_format32
)))
212 return __get_v4l2_format32(kp
, up
);
215 static int get_v4l2_create32(struct v4l2_create_buffers
*kp
, struct v4l2_create_buffers32 __user
*up
)
217 if (!access_ok(VERIFY_READ
, up
, sizeof(struct v4l2_create_buffers32
)) ||
218 copy_from_user(kp
, up
, offsetof(struct v4l2_create_buffers32
, format
)))
220 return __get_v4l2_format32(&kp
->format
, &up
->format
);
223 static int __put_v4l2_format32(struct v4l2_format
*kp
, struct v4l2_format32 __user
*up
)
225 if (put_user(kp
->type
, &up
->type
))
229 case V4L2_BUF_TYPE_VIDEO_CAPTURE
:
230 case V4L2_BUF_TYPE_VIDEO_OUTPUT
:
231 return put_v4l2_pix_format(&kp
->fmt
.pix
, &up
->fmt
.pix
);
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
,
236 case V4L2_BUF_TYPE_VIDEO_OVERLAY
:
237 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
:
238 return put_v4l2_window32(&kp
->fmt
.win
, &up
->fmt
.win
);
239 case V4L2_BUF_TYPE_VBI_CAPTURE
:
240 case V4L2_BUF_TYPE_VBI_OUTPUT
:
241 return put_v4l2_vbi_format(&kp
->fmt
.vbi
, &up
->fmt
.vbi
);
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
);
246 printk(KERN_INFO
"compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
252 static int put_v4l2_format32(struct v4l2_format
*kp
, struct v4l2_format32 __user
*up
)
254 if (!access_ok(VERIFY_WRITE
, up
, sizeof(struct v4l2_format32
)))
256 return __put_v4l2_format32(kp
, up
);
259 static int put_v4l2_create32(struct v4l2_create_buffers
*kp
, struct v4l2_create_buffers32 __user
*up
)
261 if (!access_ok(VERIFY_WRITE
, up
, sizeof(struct v4l2_create_buffers32
)) ||
262 copy_to_user(up
, kp
, offsetof(struct v4l2_create_buffers32
, format
)))
264 return __put_v4l2_format32(&kp
->format
, &up
->format
);
267 struct v4l2_standard32
{
269 __u32 id
[2]; /* __u64 would get the alignment wrong */
271 struct v4l2_fract frameperiod
; /* Frames, not fields */
276 static int get_v4l2_standard32(struct v4l2_standard
*kp
, struct v4l2_standard32 __user
*up
)
278 /* other fields are not set by the user, nor used by the driver */
279 if (!access_ok(VERIFY_READ
, up
, sizeof(struct v4l2_standard32
)) ||
280 get_user(kp
->index
, &up
->index
))
285 static int put_v4l2_standard32(struct v4l2_standard
*kp
, struct v4l2_standard32 __user
*up
)
287 if (!access_ok(VERIFY_WRITE
, up
, sizeof(struct v4l2_standard32
)) ||
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
)))
298 struct v4l2_plane32
{
303 compat_long_t userptr
;
310 struct v4l2_buffer32
{
312 __u32 type
; /* enum v4l2_buf_type */
315 __u32 field
; /* enum v4l2_field */
316 struct compat_timeval timestamp
;
317 struct v4l2_timecode timecode
;
320 /* memory location */
321 __u32 memory
; /* enum v4l2_memory */
324 compat_long_t userptr
;
325 compat_caddr_t planes
;
333 static int get_v4l2_plane32(struct v4l2_plane __user
*up
, struct v4l2_plane32 __user
*up32
,
334 enum v4l2_memory memory
)
339 if (copy_in_user(up
, up32
, 2 * sizeof(__u32
)) ||
340 copy_in_user(&up
->data_offset
, &up32
->data_offset
,
344 if (memory
== V4L2_MEMORY_USERPTR
) {
345 if (get_user(p
, &up32
->m
.userptr
))
347 up_pln
= compat_ptr(p
);
348 if (put_user((unsigned long)up_pln
, &up
->m
.userptr
))
350 } else if (memory
== V4L2_MEMORY_DMABUF
) {
351 if (copy_in_user(&up
->m
.fd
, &up32
->m
.fd
, sizeof(int)))
354 if (copy_in_user(&up
->m
.mem_offset
, &up32
->m
.mem_offset
,
362 static int put_v4l2_plane32(struct v4l2_plane __user
*up
, struct v4l2_plane32 __user
*up32
,
363 enum v4l2_memory memory
)
365 if (copy_in_user(up32
, up
, 2 * sizeof(__u32
)) ||
366 copy_in_user(&up32
->data_offset
, &up
->data_offset
,
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
,
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
,
385 static int get_v4l2_buffer32(struct v4l2_buffer
*kp
, struct v4l2_buffer32 __user
*up
)
387 struct v4l2_plane32 __user
*uplane32
;
388 struct v4l2_plane __user
*uplane
;
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
) ||
397 get_user(kp
->memory
, &up
->memory
))
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
))
408 if (V4L2_TYPE_IS_MULTIPLANAR(kp
->type
)) {
409 if (get_user(kp
->length
, &up
->length
))
412 num_planes
= kp
->length
;
413 if (num_planes
== 0) {
415 /* num_planes == 0 is legal, e.g. when userspace doesn't
416 * need planes array on DQBUF*/
420 if (get_user(p
, &up
->m
.planes
))
423 uplane32
= compat_ptr(p
);
424 if (!access_ok(VERIFY_READ
, uplane32
,
425 num_planes
* sizeof(struct v4l2_plane32
)))
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
));
432 kp
->m
.planes
= (__force
struct v4l2_plane
*)uplane
;
434 while (--num_planes
>= 0) {
435 ret
= get_v4l2_plane32(uplane
, uplane32
, kp
->memory
);
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
))
448 case V4L2_MEMORY_USERPTR
:
452 if (get_user(kp
->length
, &up
->length
) ||
453 get_user(tmp
, &up
->m
.userptr
))
456 kp
->m
.userptr
= (unsigned long)compat_ptr(tmp
);
459 case V4L2_MEMORY_OVERLAY
:
460 if (get_user(kp
->m
.offset
, &up
->m
.offset
))
463 case V4L2_MEMORY_DMABUF
:
464 if (get_user(kp
->m
.fd
, &up
->m
.fd
))
473 static int put_v4l2_buffer32(struct v4l2_buffer
*kp
, struct v4l2_buffer32 __user
*up
)
475 struct v4l2_plane32 __user
*uplane32
;
476 struct v4l2_plane __user
*uplane
;
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
) ||
485 put_user(kp
->memory
, &up
->memory
))
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
) ||
494 put_user(kp
->reserved2
, &up
->reserved2
) ||
495 put_user(kp
->reserved
, &up
->reserved
))
498 if (V4L2_TYPE_IS_MULTIPLANAR(kp
->type
)) {
499 num_planes
= kp
->length
;
503 uplane
= (__force
struct v4l2_plane __user
*)kp
->m
.planes
;
504 if (get_user(p
, &up
->m
.planes
))
506 uplane32
= compat_ptr(p
);
508 while (--num_planes
>= 0) {
509 ret
= put_v4l2_plane32(uplane
, uplane32
, kp
->memory
);
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
))
522 case V4L2_MEMORY_USERPTR
:
523 if (put_user(kp
->length
, &up
->length
) ||
524 put_user(kp
->m
.userptr
, &up
->m
.userptr
))
527 case V4L2_MEMORY_OVERLAY
:
528 if (put_user(kp
->m
.offset
, &up
->m
.offset
))
531 case V4L2_MEMORY_DMABUF
:
532 if (put_user(kp
->m
.fd
, &up
->m
.fd
))
541 struct v4l2_framebuffer32
{
557 static int get_v4l2_framebuffer32(struct v4l2_framebuffer
*kp
, struct v4l2_framebuffer32 __user
*up
)
561 if (!access_ok(VERIFY_READ
, up
, sizeof(struct v4l2_framebuffer32
)) ||
562 get_user(tmp
, &up
->base
) ||
563 get_user(kp
->capability
, &up
->capability
) ||
564 get_user(kp
->flags
, &up
->flags
) ||
565 copy_from_user(&kp
->fmt
, &up
->fmt
, sizeof(up
->fmt
)))
567 kp
->base
= (__force
void *)compat_ptr(tmp
);
571 static int put_v4l2_framebuffer32(struct v4l2_framebuffer
*kp
, struct v4l2_framebuffer32 __user
*up
)
573 u32 tmp
= (u32
)((unsigned long)kp
->base
);
575 if (!access_ok(VERIFY_WRITE
, up
, sizeof(struct v4l2_framebuffer32
)) ||
576 put_user(tmp
, &up
->base
) ||
577 put_user(kp
->capability
, &up
->capability
) ||
578 put_user(kp
->flags
, &up
->flags
) ||
579 copy_to_user(&up
->fmt
, &kp
->fmt
, sizeof(up
->fmt
)))
584 struct 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 */
593 } __attribute__ ((packed
));
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. */
597 static inline int get_v4l2_input32(struct v4l2_input
*kp
, struct v4l2_input32 __user
*up
)
599 if (copy_from_user(kp
, up
, sizeof(struct v4l2_input32
)))
604 static inline int put_v4l2_input32(struct v4l2_input
*kp
, struct v4l2_input32 __user
*up
)
606 if (copy_to_user(up
, kp
, sizeof(struct v4l2_input32
)))
611 struct v4l2_ext_controls32
{
616 compat_caddr_t controls
; /* actually struct v4l2_ext_control32 * */
619 struct v4l2_ext_control32
{
626 compat_caddr_t string
; /* actually char * */
628 } __attribute__ ((packed
));
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. */
634 /* Return non-zero if this control is a pointer type. Currently only
635 type STRING is a pointer type. */
636 static inline int ctrl_is_pointer(u32 id
)
639 case V4L2_CID_RDS_TX_PS_NAME
:
640 case V4L2_CID_RDS_TX_RADIO_TEXT
:
647 static int get_v4l2_ext_controls32(struct v4l2_ext_controls
*kp
, struct v4l2_ext_controls32 __user
*up
)
649 struct v4l2_ext_control32 __user
*ucontrols
;
650 struct v4l2_ext_control __user
*kcontrols
;
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
)))
665 if (get_user(p
, &up
->controls
))
667 ucontrols
= compat_ptr(p
);
668 if (!access_ok(VERIFY_READ
, ucontrols
,
669 n
* sizeof(struct v4l2_ext_control32
)))
671 kcontrols
= compat_alloc_user_space(n
* sizeof(struct v4l2_ext_control
));
672 kp
->controls
= (__force
struct v4l2_ext_control
*)kcontrols
;
676 if (copy_in_user(kcontrols
, ucontrols
, sizeof(*ucontrols
)))
678 if (get_user(id
, &kcontrols
->id
))
680 if (ctrl_is_pointer(id
)) {
683 if (get_user(p
, &ucontrols
->string
))
686 if (put_user(s
, &kcontrols
->string
))
695 static int put_v4l2_ext_controls32(struct v4l2_ext_controls
*kp
, struct v4l2_ext_controls32 __user
*up
)
697 struct v4l2_ext_control32 __user
*ucontrols
;
698 struct v4l2_ext_control __user
*kcontrols
=
699 (__force
struct v4l2_ext_control __user
*)kp
->controls
;
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
)))
712 if (get_user(p
, &up
->controls
))
714 ucontrols
= compat_ptr(p
);
715 if (!access_ok(VERIFY_WRITE
, ucontrols
,
716 n
* sizeof(struct v4l2_ext_control32
)))
720 unsigned size
= sizeof(*ucontrols
);
723 if (get_user(id
, &kcontrols
->id
))
725 /* Do not modify the pointer when copying a pointer control.
726 The contents of the pointer was changed, not the pointer
728 if (ctrl_is_pointer(id
))
729 size
-= sizeof(ucontrols
->value64
);
730 if (copy_in_user(ucontrols
, kcontrols
, size
))
738 struct v4l2_event32
{
745 struct compat_timespec timestamp
;
750 static int put_v4l2_event32(struct v4l2_event
*kp
, struct v4l2_event32 __user
*up
)
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
) ||
757 compat_put_timespec(&kp
->timestamp
, &up
->timestamp
) ||
758 put_user(kp
->id
, &up
->id
) ||
759 copy_to_user(up
->reserved
, kp
->reserved
, 8 * sizeof(__u32
)))
772 static int get_v4l2_edid32(struct v4l2_edid
*kp
, struct v4l2_edid32 __user
*up
)
776 if (!access_ok(VERIFY_READ
, up
, sizeof(struct v4l2_edid32
)) ||
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
)))
783 kp
->edid
= (__force u8
*)compat_ptr(tmp
);
787 static int put_v4l2_edid32(struct v4l2_edid
*kp
, struct v4l2_edid32 __user
*up
)
789 u32 tmp
= (u32
)((unsigned long)kp
->edid
);
791 if (!access_ok(VERIFY_WRITE
, up
, sizeof(struct v4l2_edid32
)) ||
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
) ||
796 copy_to_user(up
->reserved
, kp
->reserved
, sizeof(up
->reserved
)))
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)
811 #define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
812 #define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
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)
817 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
818 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
819 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
821 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
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)
829 static long do_video_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
832 struct v4l2_format v2f
;
833 struct v4l2_buffer v2b
;
834 struct v4l2_framebuffer v2fb
;
835 struct v4l2_input v2i
;
836 struct v4l2_standard v2s
;
837 struct v4l2_ext_controls v2ecs
;
838 struct v4l2_event v2ev
;
839 struct v4l2_create_buffers v2crt
;
840 struct v4l2_edid v2edid
;
844 void __user
*up
= compat_ptr(arg
);
845 int compatible_arg
= 1;
848 /* First, convert the command. */
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;
863 case VIDIOC_DQEVENT32
: cmd
= VIDIOC_DQEVENT
; break;
864 case VIDIOC_OVERLAY32
: cmd
= VIDIOC_OVERLAY
; break;
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;
871 case VIDIOC_CREATE_BUFS32
: cmd
= VIDIOC_CREATE_BUFS
; break;
872 case VIDIOC_PREPARE_BUF32
: cmd
= VIDIOC_PREPARE_BUF
; break;
873 case VIDIOC_G_EDID32
: cmd
= VIDIOC_G_EDID
; break;
874 case VIDIOC_S_EDID32
: cmd
= VIDIOC_S_EDID
; break;
879 case VIDIOC_STREAMON
:
880 case VIDIOC_STREAMOFF
:
882 case VIDIOC_S_OUTPUT
:
883 err
= get_user(karg
.vi
, (s32 __user
*)up
);
888 case VIDIOC_G_OUTPUT
:
894 err
= get_v4l2_edid32(&karg
.v2edid
, up
);
901 err
= get_v4l2_format32(&karg
.v2f
, up
);
905 case VIDIOC_CREATE_BUFS
:
906 err
= get_v4l2_create32(&karg
.v2crt
, up
);
910 case VIDIOC_PREPARE_BUF
:
911 case VIDIOC_QUERYBUF
:
914 err
= get_v4l2_buffer32(&karg
.v2b
, up
);
919 err
= get_v4l2_framebuffer32(&karg
.v2fb
, up
);
928 err
= get_v4l2_standard32(&karg
.v2s
, up
);
932 case VIDIOC_ENUMINPUT
:
933 err
= get_v4l2_input32(&karg
.v2i
, up
);
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
);
951 err
= native_ioctl(file
, cmd
, (unsigned long)up
);
953 mm_segment_t old_fs
= get_fs();
956 err
= native_ioctl(file
, cmd
, (unsigned long)&karg
);
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. */
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
))
976 case VIDIOC_S_OUTPUT
:
978 case VIDIOC_G_OUTPUT
:
979 err
= put_user(((s32
)karg
.vi
), (s32 __user
*)up
);
983 err
= put_v4l2_framebuffer32(&karg
.v2fb
, up
);
987 err
= put_v4l2_event32(&karg
.v2ev
, up
);
992 err
= put_v4l2_edid32(&karg
.v2edid
, up
);
998 err
= put_v4l2_format32(&karg
.v2f
, up
);
1001 case VIDIOC_CREATE_BUFS
:
1002 err
= put_v4l2_create32(&karg
.v2crt
, up
);
1005 case VIDIOC_QUERYBUF
:
1008 err
= put_v4l2_buffer32(&karg
.v2b
, up
);
1011 case VIDIOC_ENUMSTD
:
1012 err
= put_v4l2_standard32(&karg
.v2s
, up
);
1015 case VIDIOC_ENUMINPUT
:
1016 err
= put_v4l2_input32(&karg
.v2i
, up
);
1022 long v4l2_compat_ioctl32(struct file
*file
, unsigned int cmd
, unsigned long arg
)
1024 struct video_device
*vdev
= video_devdata(file
);
1025 long ret
= -ENOIOCTLCMD
;
1027 if (!file
->f_op
->unlocked_ioctl
)
1030 if (_IOC_TYPE(cmd
) == 'V' && _IOC_NR(cmd
) < BASE_VIDIOC_PRIVATE
)
1031 ret
= do_video_ioctl(file
, cmd
, arg
);
1032 else if (vdev
->fops
->compat_ioctl32
)
1033 ret
= vdev
->fops
->compat_ioctl32(file
, cmd
, arg
);
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
);
1040 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32
);