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);