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)
226 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
227 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
228 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
229 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
230 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
231 return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
233 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
234 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
235 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
236 case V4L2_BUF_TYPE_VBI_CAPTURE:
237 case V4L2_BUF_TYPE_VBI_OUTPUT:
238 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
239 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
240 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
241 return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
243 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
249 static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
251 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) ||
252 put_user(kp->type, &up->type))
254 return __put_v4l2_format32(kp, up);
257 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
259 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
260 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format.fmt)))
262 return __put_v4l2_format32(&kp->format, &up->format);
265 struct v4l2_standard32 {
267 __u32 id[2]; /* __u64 would get the alignment wrong */
269 struct v4l2_fract frameperiod; /* Frames, not fields */
274 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
276 /* other fields are not set by the user, nor used by the driver */
277 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
278 get_user(kp->index, &up->index))
283 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
285 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
286 put_user(kp->index, &up->index) ||
287 copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
288 copy_to_user(up->name, kp->name, 24) ||
289 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
290 put_user(kp->framelines, &up->framelines) ||
291 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
296 struct v4l2_plane32 {
301 compat_long_t userptr;
308 struct v4l2_buffer32 {
310 __u32 type; /* enum v4l2_buf_type */
313 __u32 field; /* enum v4l2_field */
314 struct compat_timeval timestamp;
315 struct v4l2_timecode timecode;
318 /* memory location */
319 __u32 memory; /* enum v4l2_memory */
322 compat_long_t userptr;
323 compat_caddr_t planes;
331 static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
332 enum v4l2_memory memory)
337 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
338 copy_in_user(&up->data_offset, &up32->data_offset,
342 if (memory == V4L2_MEMORY_USERPTR) {
343 if (get_user(p, &up32->m.userptr))
345 up_pln = compat_ptr(p);
346 if (put_user((unsigned long)up_pln, &up->m.userptr))
348 } else if (memory == V4L2_MEMORY_DMABUF) {
349 if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int)))
352 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
360 static int put_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
361 enum v4l2_memory memory)
363 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
364 copy_in_user(&up32->data_offset, &up->data_offset,
368 /* For MMAP, driver might've set up the offset, so copy it back.
369 * USERPTR stays the same (was userspace-provided), so no copying. */
370 if (memory == V4L2_MEMORY_MMAP)
371 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
374 /* For DMABUF, driver might've set up the fd, so copy it back. */
375 if (memory == V4L2_MEMORY_DMABUF)
376 if (copy_in_user(&up32->m.fd, &up->m.fd,
383 static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
385 struct v4l2_plane32 __user *uplane32;
386 struct v4l2_plane __user *uplane;
391 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
392 get_user(kp->index, &up->index) ||
393 get_user(kp->type, &up->type) ||
394 get_user(kp->flags, &up->flags) ||
395 get_user(kp->memory, &up->memory))
398 if (V4L2_TYPE_IS_OUTPUT(kp->type))
399 if (get_user(kp->bytesused, &up->bytesused) ||
400 get_user(kp->field, &up->field) ||
401 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
402 get_user(kp->timestamp.tv_usec,
403 &up->timestamp.tv_usec))
406 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
407 if (get_user(kp->length, &up->length))
410 num_planes = kp->length;
411 if (num_planes == 0) {
413 /* num_planes == 0 is legal, e.g. when userspace doesn't
414 * need planes array on DQBUF*/
418 if (get_user(p, &up->m.planes))
421 uplane32 = compat_ptr(p);
422 if (!access_ok(VERIFY_READ, uplane32,
423 num_planes * sizeof(struct v4l2_plane32)))
426 /* We don't really care if userspace decides to kill itself
427 * by passing a very big num_planes value */
428 uplane = compat_alloc_user_space(num_planes *
429 sizeof(struct v4l2_plane));
430 kp->m.planes = uplane;
432 while (--num_planes >= 0) {
433 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
440 switch (kp->memory) {
441 case V4L2_MEMORY_MMAP:
442 if (get_user(kp->length, &up->length) ||
443 get_user(kp->m.offset, &up->m.offset))
446 case V4L2_MEMORY_USERPTR:
450 if (get_user(kp->length, &up->length) ||
451 get_user(tmp, &up->m.userptr))
454 kp->m.userptr = (unsigned long)compat_ptr(tmp);
457 case V4L2_MEMORY_OVERLAY:
458 if (get_user(kp->m.offset, &up->m.offset))
461 case V4L2_MEMORY_DMABUF:
462 if (get_user(kp->m.fd, &up->m.fd))
471 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
473 struct v4l2_plane32 __user *uplane32;
474 struct v4l2_plane __user *uplane;
479 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
480 put_user(kp->index, &up->index) ||
481 put_user(kp->type, &up->type) ||
482 put_user(kp->flags, &up->flags) ||
483 put_user(kp->memory, &up->memory))
486 if (put_user(kp->bytesused, &up->bytesused) ||
487 put_user(kp->field, &up->field) ||
488 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
489 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
490 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
491 put_user(kp->sequence, &up->sequence) ||
492 put_user(kp->reserved2, &up->reserved2) ||
493 put_user(kp->reserved, &up->reserved))
496 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
497 num_planes = kp->length;
501 uplane = kp->m.planes;
502 if (get_user(p, &up->m.planes))
504 uplane32 = compat_ptr(p);
506 while (--num_planes >= 0) {
507 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
514 switch (kp->memory) {
515 case V4L2_MEMORY_MMAP:
516 if (put_user(kp->length, &up->length) ||
517 put_user(kp->m.offset, &up->m.offset))
520 case V4L2_MEMORY_USERPTR:
521 if (put_user(kp->length, &up->length) ||
522 put_user(kp->m.userptr, &up->m.userptr))
525 case V4L2_MEMORY_OVERLAY:
526 if (put_user(kp->m.offset, &up->m.offset))
529 case V4L2_MEMORY_DMABUF:
530 if (put_user(kp->m.fd, &up->m.fd))
539 struct v4l2_framebuffer32 {
543 struct v4l2_pix_format fmt;
546 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
550 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
551 get_user(tmp, &up->base) ||
552 get_user(kp->capability, &up->capability) ||
553 get_user(kp->flags, &up->flags))
555 kp->base = compat_ptr(tmp);
556 get_v4l2_pix_format(&kp->fmt, &up->fmt);
560 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
562 u32 tmp = (u32)((unsigned long)kp->base);
564 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
565 put_user(tmp, &up->base) ||
566 put_user(kp->capability, &up->capability) ||
567 put_user(kp->flags, &up->flags))
569 put_v4l2_pix_format(&kp->fmt, &up->fmt);
573 struct v4l2_input32 {
574 __u32 index; /* Which input */
575 __u8 name[32]; /* Label */
576 __u32 type; /* Type of input */
577 __u32 audioset; /* Associated audios (bitfield) */
578 __u32 tuner; /* Associated tuner */
582 } __attribute__ ((packed));
584 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
585 Otherwise it is identical to the 32-bit version. */
586 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
588 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
593 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
595 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
600 struct v4l2_ext_controls32 {
605 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
608 struct v4l2_ext_control32 {
615 compat_caddr_t string; /* actually char * */
617 } __attribute__ ((packed));
619 /* The following function really belong in v4l2-common, but that causes
620 a circular dependency between modules. We need to think about this, but
621 for now this will do. */
623 /* Return non-zero if this control is a pointer type. Currently only
624 type STRING is a pointer type. */
625 static inline int ctrl_is_pointer(u32 id)
628 case V4L2_CID_RDS_TX_PS_NAME:
629 case V4L2_CID_RDS_TX_RADIO_TEXT:
636 static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
638 struct v4l2_ext_control32 __user *ucontrols;
639 struct v4l2_ext_control __user *kcontrols;
643 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
644 get_user(kp->ctrl_class, &up->ctrl_class) ||
645 get_user(kp->count, &up->count) ||
646 get_user(kp->error_idx, &up->error_idx) ||
647 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
654 if (get_user(p, &up->controls))
656 ucontrols = compat_ptr(p);
657 if (!access_ok(VERIFY_READ, ucontrols,
658 n * sizeof(struct v4l2_ext_control32)))
660 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
661 kp->controls = kcontrols;
663 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
665 if (ctrl_is_pointer(kcontrols->id)) {
668 if (get_user(p, &ucontrols->string))
671 if (put_user(s, &kcontrols->string))
680 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
682 struct v4l2_ext_control32 __user *ucontrols;
683 struct v4l2_ext_control __user *kcontrols = kp->controls;
687 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
688 put_user(kp->ctrl_class, &up->ctrl_class) ||
689 put_user(kp->count, &up->count) ||
690 put_user(kp->error_idx, &up->error_idx) ||
691 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
696 if (get_user(p, &up->controls))
698 ucontrols = compat_ptr(p);
699 if (!access_ok(VERIFY_WRITE, ucontrols,
700 n * sizeof(struct v4l2_ext_control32)))
704 unsigned size = sizeof(*ucontrols);
706 /* Do not modify the pointer when copying a pointer control.
707 The contents of the pointer was changed, not the pointer
709 if (ctrl_is_pointer(kcontrols->id))
710 size -= sizeof(ucontrols->value64);
711 if (copy_in_user(ucontrols, kcontrols, size))
719 struct v4l2_event32 {
726 struct compat_timespec timestamp;
731 static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
733 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
734 put_user(kp->type, &up->type) ||
735 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
736 put_user(kp->pending, &up->pending) ||
737 put_user(kp->sequence, &up->sequence) ||
738 compat_put_timespec(&kp->timestamp, &up->timestamp) ||
739 put_user(kp->id, &up->id) ||
740 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
753 static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
757 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) ||
758 get_user(kp->pad, &up->pad) ||
759 get_user(kp->start_block, &up->start_block) ||
760 get_user(kp->blocks, &up->blocks) ||
761 get_user(tmp, &up->edid) ||
762 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
764 kp->edid = compat_ptr(tmp);
768 static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
770 u32 tmp = (u32)((unsigned long)kp->edid);
772 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) ||
773 put_user(kp->pad, &up->pad) ||
774 put_user(kp->start_block, &up->start_block) ||
775 put_user(kp->blocks, &up->blocks) ||
776 put_user(tmp, &up->edid) ||
777 copy_to_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
783 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
784 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
785 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
786 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
787 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
788 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
789 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
790 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
791 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
792 #define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
793 #define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
794 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
795 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
796 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
797 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
798 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
799 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
800 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
802 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
803 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
804 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
805 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
806 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
807 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
808 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
810 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
813 struct v4l2_format v2f;
814 struct v4l2_buffer v2b;
815 struct v4l2_framebuffer v2fb;
816 struct v4l2_input v2i;
817 struct v4l2_standard v2s;
818 struct v4l2_ext_controls v2ecs;
819 struct v4l2_event v2ev;
820 struct v4l2_create_buffers v2crt;
821 struct v4l2_edid v2edid;
825 void __user *up = compat_ptr(arg);
826 int compatible_arg = 1;
829 /* First, convert the command. */
831 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
832 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
833 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
834 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
835 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
836 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
837 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
838 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
839 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
840 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
841 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
842 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
843 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
844 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
845 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
846 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
847 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
848 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
849 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
850 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
851 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
852 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
853 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
854 case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break;
855 case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break;
860 case VIDIOC_STREAMON:
861 case VIDIOC_STREAMOFF:
863 case VIDIOC_S_OUTPUT:
864 err = get_user(karg.vi, (s32 __user *)up);
869 case VIDIOC_G_OUTPUT:
875 err = get_v4l2_edid32(&karg.v2edid, up);
882 err = get_v4l2_format32(&karg.v2f, up);
886 case VIDIOC_CREATE_BUFS:
887 err = get_v4l2_create32(&karg.v2crt, up);
891 case VIDIOC_PREPARE_BUF:
892 case VIDIOC_QUERYBUF:
895 err = get_v4l2_buffer32(&karg.v2b, up);
900 err = get_v4l2_framebuffer32(&karg.v2fb, up);
909 err = get_v4l2_standard32(&karg.v2s, up);
913 case VIDIOC_ENUMINPUT:
914 err = get_v4l2_input32(&karg.v2i, up);
918 case VIDIOC_G_EXT_CTRLS:
919 case VIDIOC_S_EXT_CTRLS:
920 case VIDIOC_TRY_EXT_CTRLS:
921 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
932 err = native_ioctl(file, cmd, (unsigned long)up);
934 mm_segment_t old_fs = get_fs();
937 err = native_ioctl(file, cmd, (unsigned long)&karg);
941 /* Special case: even after an error we need to put the
942 results back for these ioctls since the error_idx will
943 contain information on which control failed. */
945 case VIDIOC_G_EXT_CTRLS:
946 case VIDIOC_S_EXT_CTRLS:
947 case VIDIOC_TRY_EXT_CTRLS:
948 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
957 case VIDIOC_S_OUTPUT:
959 case VIDIOC_G_OUTPUT:
960 err = put_user(((s32)karg.vi), (s32 __user *)up);
964 err = put_v4l2_framebuffer32(&karg.v2fb, up);
968 err = put_v4l2_event32(&karg.v2ev, up);
973 err = put_v4l2_edid32(&karg.v2edid, up);
979 err = put_v4l2_format32(&karg.v2f, up);
982 case VIDIOC_CREATE_BUFS:
983 err = put_v4l2_create32(&karg.v2crt, up);
986 case VIDIOC_QUERYBUF:
989 err = put_v4l2_buffer32(&karg.v2b, up);
993 err = put_v4l2_standard32(&karg.v2s, up);
996 case VIDIOC_ENUMINPUT:
997 err = put_v4l2_input32(&karg.v2i, up);
1003 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
1005 struct video_device *vdev = video_devdata(file);
1006 long ret = -ENOIOCTLCMD;
1008 if (!file->f_op->unlocked_ioctl)
1011 if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
1012 ret = do_video_ioctl(file, cmd, arg);
1013 else if (vdev->fops->compat_ioctl32)
1014 ret = vdev->fops->compat_ioctl32(file, cmd, arg);
1016 if (ret == -ENOIOCTLCMD)
1017 pr_warn("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1018 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1021 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);