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/videodev2.h>
18 #include <linux/module.h>
19 #include <media/v4l2-ioctl.h>
20 #include <media/v4l2-dev.h>
21 #include <media/v4l2-fh.h>
22 #include <media/v4l2-ctrls.h>
26 static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
28 long ret = -ENOIOCTLCMD;
30 if (file->f_op->unlocked_ioctl)
31 ret = file->f_op->unlocked_ioctl(file, cmd, arg);
42 struct v4l2_window32 {
44 enum v4l2_field field;
46 compat_caddr_t clips; /* actually struct v4l2_clip32 * */
48 compat_caddr_t bitmap;
52 static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
54 struct v4l2_clip32 __user *uclips;
55 struct v4l2_clip __user *kclips;
59 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
60 copy_from_user(&kp->w, &up->w, sizeof(up->w)) ||
61 get_user(kp->field, &up->field) ||
62 get_user(kp->chromakey, &up->chromakey) ||
63 get_user(kp->clipcount, &up->clipcount) ||
64 get_user(kp->global_alpha, &up->global_alpha))
66 if (kp->clipcount > 2048)
74 if (get_user(p, &up->clips))
76 uclips = compat_ptr(p);
77 kclips = compat_alloc_user_space(n * sizeof(*kclips));
80 if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c)))
82 if (put_user(n ? kclips + 1 : NULL, &kclips->next))
90 static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
92 struct v4l2_clip __user *kclips = kp->clips;
93 struct v4l2_clip32 __user *uclips;
94 u32 n = kp->clipcount;
97 if (copy_to_user(&up->w, &kp->w, sizeof(kp->w)) ||
98 put_user(kp->field, &up->field) ||
99 put_user(kp->chromakey, &up->chromakey) ||
100 put_user(kp->clipcount, &up->clipcount) ||
101 put_user(kp->global_alpha, &up->global_alpha))
107 if (get_user(p, &up->clips))
109 uclips = compat_ptr(p);
111 if (copy_in_user(&uclips->c, &kclips->c, sizeof(uclips->c)))
119 struct v4l2_format32 {
120 enum v4l2_buf_type type;
122 struct v4l2_pix_format pix;
123 struct v4l2_pix_format_mplane pix_mp;
124 struct v4l2_window32 win;
125 struct v4l2_vbi_format vbi;
126 struct v4l2_sliced_vbi_format sliced;
127 __u8 raw_data[200]; /* user-defined */
132 * struct v4l2_create_buffers32 - VIDIOC_CREATE_BUFS32 argument
133 * @index: on return, index of the first created buffer
134 * @count: entry: number of requested buffers,
135 * return: number of created buffers
136 * @memory: buffer memory type
137 * @format: frame format, for which buffers are requested
138 * @reserved: future extensions
140 struct v4l2_create_buffers32 {
143 enum v4l2_memory memory;
144 struct v4l2_format32 format;
148 static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
150 if (get_user(kp->type, &up->type))
154 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
155 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
156 return copy_from_user(&kp->fmt.pix, &up->fmt.pix,
157 sizeof(kp->fmt.pix)) ? -EFAULT : 0;
158 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
159 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
160 return copy_from_user(&kp->fmt.pix_mp, &up->fmt.pix_mp,
161 sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
162 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
163 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
164 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
165 case V4L2_BUF_TYPE_VBI_CAPTURE:
166 case V4L2_BUF_TYPE_VBI_OUTPUT:
167 return copy_from_user(&kp->fmt.vbi, &up->fmt.vbi,
168 sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
169 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
170 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
171 return copy_from_user(&kp->fmt.sliced, &up->fmt.sliced,
172 sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
173 case V4L2_BUF_TYPE_PRIVATE:
174 if (copy_from_user(kp, up, sizeof(kp->fmt.raw_data)))
178 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
184 static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
186 if (!access_ok(VERIFY_READ, up, sizeof(*up)))
188 return __get_v4l2_format32(kp, up);
191 static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
193 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
194 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format)))
196 return __get_v4l2_format32(&kp->format, &up->format);
199 static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
201 if (put_user(kp->type, &up->type))
205 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
206 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
207 return copy_to_user(&up->fmt.pix, &kp->fmt.pix,
208 sizeof(kp->fmt.pix)) ? -EFAULT : 0;
209 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
210 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
211 return copy_to_user(&up->fmt.pix_mp, &kp->fmt.pix_mp,
212 sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
213 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
214 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
215 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
216 case V4L2_BUF_TYPE_VBI_CAPTURE:
217 case V4L2_BUF_TYPE_VBI_OUTPUT:
218 return copy_to_user(&up->fmt.vbi, &kp->fmt.vbi,
219 sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
220 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
221 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
222 return copy_to_user(&up->fmt.sliced, &kp->fmt.sliced,
223 sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
224 case V4L2_BUF_TYPE_PRIVATE:
225 if (copy_to_user(up, kp, sizeof(up->fmt.raw_data)))
229 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
235 static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
237 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
239 return __put_v4l2_format32(kp, up);
242 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
244 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
245 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) ||
246 copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
248 return __put_v4l2_format32(&kp->format, &up->format);
251 struct v4l2_standard32 {
255 struct v4l2_fract frameperiod; /* Frames, not fields */
260 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
262 /* other fields are not set by the user, nor used by the driver */
263 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
264 get_user(kp->index, &up->index))
269 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
271 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
272 put_user(kp->index, &up->index) ||
273 put_user(kp->id, &up->id) ||
274 copy_to_user(up->name, kp->name, sizeof(up->name)) ||
275 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
276 put_user(kp->framelines, &up->framelines) ||
277 copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
282 struct v4l2_plane32 {
287 compat_long_t userptr;
293 struct v4l2_buffer32 {
295 enum v4l2_buf_type type;
298 enum v4l2_field field;
299 struct compat_timeval timestamp;
300 struct v4l2_timecode timecode;
303 /* memory location */
304 enum v4l2_memory memory;
307 compat_long_t userptr;
308 compat_caddr_t planes;
315 static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
316 enum v4l2_memory memory)
321 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
322 copy_in_user(&up->data_offset, &up32->data_offset,
323 sizeof(up->data_offset)))
327 case V4L2_MEMORY_MMAP:
328 case V4L2_MEMORY_OVERLAY:
329 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
330 sizeof(up32->m.mem_offset)))
333 case V4L2_MEMORY_USERPTR:
334 if (get_user(p, &up32->m.userptr))
336 up_pln = compat_ptr(p);
337 if (put_user((unsigned long)up_pln, &up->m.userptr))
345 static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
346 enum v4l2_memory memory)
350 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
351 copy_in_user(&up32->data_offset, &up->data_offset,
352 sizeof(up->data_offset)))
356 case V4L2_MEMORY_MMAP:
357 case V4L2_MEMORY_OVERLAY:
358 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
359 sizeof(up->m.mem_offset)))
362 case V4L2_MEMORY_USERPTR:
363 if (get_user(p, &up->m.userptr) ||
364 put_user((compat_ulong_t)ptr_to_compat((__force void *)p),
373 static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
375 struct v4l2_plane32 __user *uplane32;
376 struct v4l2_plane __user *uplane;
381 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
382 get_user(kp->index, &up->index) ||
383 get_user(kp->type, &up->type) ||
384 get_user(kp->flags, &up->flags) ||
385 get_user(kp->memory, &up->memory) ||
386 get_user(kp->input, &up->input))
389 if (V4L2_TYPE_IS_OUTPUT(kp->type))
390 if (get_user(kp->bytesused, &up->bytesused) ||
391 get_user(kp->field, &up->field) ||
392 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
393 get_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec))
396 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
397 if (get_user(kp->length, &up->length))
400 num_planes = kp->length;
401 if (num_planes == 0) {
403 /* num_planes == 0 is legal, e.g. when userspace doesn't
404 * need planes array on DQBUF*/
408 if (get_user(p, &up->m.planes))
411 uplane32 = compat_ptr(p);
412 if (!access_ok(VERIFY_READ, uplane32,
413 num_planes * sizeof(*uplane32)))
416 /* We don't really care if userspace decides to kill itself
417 * by passing a very big num_planes value */
418 uplane = compat_alloc_user_space(num_planes *
420 kp->m.planes = (__force struct v4l2_plane *)uplane;
422 while (--num_planes >= 0) {
423 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
430 switch (kp->memory) {
431 case V4L2_MEMORY_MMAP:
432 if (get_user(kp->length, &up->length) ||
433 get_user(kp->m.offset, &up->m.offset))
436 case V4L2_MEMORY_USERPTR:
440 if (get_user(kp->length, &up->length) ||
441 get_user(tmp, &up->m.userptr))
444 kp->m.userptr = (unsigned long)compat_ptr(tmp);
447 case V4L2_MEMORY_OVERLAY:
448 if (get_user(kp->m.offset, &up->m.offset))
457 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
459 struct v4l2_plane32 __user *uplane32;
460 struct v4l2_plane __user *uplane;
465 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
466 put_user(kp->index, &up->index) ||
467 put_user(kp->type, &up->type) ||
468 put_user(kp->flags, &up->flags) ||
469 put_user(kp->memory, &up->memory) ||
470 put_user(kp->input, &up->input))
473 if (put_user(kp->bytesused, &up->bytesused) ||
474 put_user(kp->field, &up->field) ||
475 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
476 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
477 copy_to_user(&up->timecode, &kp->timecode, sizeof(kp->timecode)) ||
478 put_user(kp->sequence, &up->sequence) ||
479 put_user(kp->reserved, &up->reserved))
482 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
483 num_planes = kp->length;
487 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
488 if (get_user(p, &up->m.planes))
490 uplane32 = compat_ptr(p);
492 while (--num_planes >= 0) {
493 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
500 switch (kp->memory) {
501 case V4L2_MEMORY_MMAP:
502 if (put_user(kp->length, &up->length) ||
503 put_user(kp->m.offset, &up->m.offset))
506 case V4L2_MEMORY_USERPTR:
507 if (put_user(kp->length, &up->length) ||
508 put_user(kp->m.userptr, &up->m.userptr))
511 case V4L2_MEMORY_OVERLAY:
512 if (put_user(kp->m.offset, &up->m.offset))
521 struct v4l2_framebuffer32 {
525 struct v4l2_pix_format fmt;
528 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
532 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
533 get_user(tmp, &up->base) ||
534 get_user(kp->capability, &up->capability) ||
535 get_user(kp->flags, &up->flags) ||
536 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
538 kp->base = (__force void *)compat_ptr(tmp);
542 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
544 u32 tmp = (u32)((unsigned long)kp->base);
546 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
547 put_user(tmp, &up->base) ||
548 put_user(kp->capability, &up->capability) ||
549 put_user(kp->flags, &up->flags) ||
550 copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt)))
555 struct v4l2_input32 {
556 __u32 index; /* Which input */
557 __u8 name[32]; /* Label */
558 __u32 type; /* Type of input */
559 __u32 audioset; /* Associated audios (bitfield) */
560 __u32 tuner; /* Associated tuner */
567 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
568 Otherwise it is identical to the 32-bit version. */
569 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
571 if (copy_from_user(kp, up, sizeof(*up)))
576 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
578 if (copy_to_user(up, kp, sizeof(*up)))
583 struct v4l2_ext_controls32 {
588 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
591 struct v4l2_ext_control32 {
598 compat_caddr_t string; /* actually char * */
600 } __attribute__ ((packed));
602 /* Return true if this control is a pointer type. */
603 static inline bool ctrl_is_pointer(struct file *file, u32 id)
605 struct video_device *vdev = video_devdata(file);
606 struct v4l2_fh *fh = NULL;
607 struct v4l2_ctrl_handler *hdl = NULL;
609 if (test_bit(V4L2_FL_USES_V4L2_FH, &vdev->flags))
610 fh = file->private_data;
612 if (fh && fh->ctrl_handler)
613 hdl = fh->ctrl_handler;
614 else if (vdev->ctrl_handler)
615 hdl = vdev->ctrl_handler;
618 struct v4l2_ctrl *ctrl = v4l2_ctrl_find(hdl, id);
620 return ctrl && ctrl->type == V4L2_CTRL_TYPE_STRING;
625 static int get_v4l2_ext_controls32(struct file *file,
626 struct v4l2_ext_controls *kp,
627 struct v4l2_ext_controls32 __user *up)
629 struct v4l2_ext_control32 __user *ucontrols;
630 struct v4l2_ext_control __user *kcontrols;
634 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
635 get_user(kp->ctrl_class, &up->ctrl_class) ||
636 get_user(kp->count, &up->count) ||
637 get_user(kp->error_idx, &up->error_idx) ||
638 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
645 if (get_user(p, &up->controls))
647 ucontrols = compat_ptr(p);
648 if (!access_ok(VERIFY_READ, ucontrols, n * sizeof(*ucontrols)))
650 kcontrols = compat_alloc_user_space(n * sizeof(*kcontrols));
651 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
655 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
657 if (get_user(id, &kcontrols->id))
659 if (ctrl_is_pointer(file, id)) {
662 if (get_user(p, &ucontrols->string))
665 if (put_user(s, &kcontrols->string))
674 static int put_v4l2_ext_controls32(struct file *file,
675 struct v4l2_ext_controls *kp,
676 struct v4l2_ext_controls32 __user *up)
678 struct v4l2_ext_control32 __user *ucontrols;
679 struct v4l2_ext_control __user *kcontrols =
680 (__force struct v4l2_ext_control __user *)kp->controls;
684 if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
685 put_user(kp->ctrl_class, &up->ctrl_class) ||
686 put_user(kp->count, &up->count) ||
687 put_user(kp->error_idx, &up->error_idx) ||
688 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
693 if (get_user(p, &up->controls))
695 ucontrols = compat_ptr(p);
696 if (!access_ok(VERIFY_WRITE, ucontrols, n * sizeof(*ucontrols)))
700 unsigned size = sizeof(*ucontrols);
703 if (get_user(id, &kcontrols->id))
705 /* Do not modify the pointer when copying a pointer control.
706 The contents of the pointer was changed, not the pointer
708 if (ctrl_is_pointer(file, id))
709 size -= sizeof(ucontrols->value64);
710 if (copy_in_user(ucontrols, kcontrols, size))
718 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(*up)) ||
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 put_compat_timespec(&kp->timestamp, &up->timestamp) ||
739 put_user(kp->id, &up->id) ||
740 copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
745 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
746 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
747 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
748 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
749 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
750 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
751 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
752 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
753 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
754 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
755 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
756 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
757 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
758 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
759 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
760 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
762 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
763 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
764 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
765 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
766 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
767 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
768 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
770 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
773 struct v4l2_format v2f;
774 struct v4l2_buffer v2b;
775 struct v4l2_framebuffer v2fb;
776 struct v4l2_input v2i;
777 struct v4l2_standard v2s;
778 struct v4l2_ext_controls v2ecs;
779 struct v4l2_event v2ev;
780 struct v4l2_create_buffers v2crt;
784 void __user *up = compat_ptr(arg);
785 int compatible_arg = 1;
788 /* First, convert the command. */
790 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
791 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
792 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
793 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
794 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
795 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
796 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
797 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
798 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
799 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
800 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
801 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
802 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
803 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
804 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
805 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
806 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
807 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
808 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
809 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
810 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
811 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
812 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
817 case VIDIOC_STREAMON:
818 case VIDIOC_STREAMOFF:
820 case VIDIOC_S_OUTPUT:
821 err = get_user(karg.vi, (s32 __user *)up);
826 case VIDIOC_G_OUTPUT:
833 err = get_v4l2_format32(&karg.v2f, up);
837 case VIDIOC_CREATE_BUFS:
838 err = get_v4l2_create32(&karg.v2crt, up);
842 case VIDIOC_PREPARE_BUF:
843 case VIDIOC_QUERYBUF:
846 err = get_v4l2_buffer32(&karg.v2b, up);
851 err = get_v4l2_framebuffer32(&karg.v2fb, up);
860 err = get_v4l2_standard32(&karg.v2s, up);
864 case VIDIOC_ENUMINPUT:
865 err = get_v4l2_input32(&karg.v2i, up);
869 case VIDIOC_G_EXT_CTRLS:
870 case VIDIOC_S_EXT_CTRLS:
871 case VIDIOC_TRY_EXT_CTRLS:
872 err = get_v4l2_ext_controls32(file, &karg.v2ecs, up);
883 err = native_ioctl(file, cmd, (unsigned long)up);
885 mm_segment_t old_fs = get_fs();
888 err = native_ioctl(file, cmd, (unsigned long)&karg);
892 /* Special case: even after an error we need to put the
893 results back for these ioctls since the error_idx will
894 contain information on which control failed. */
896 case VIDIOC_G_EXT_CTRLS:
897 case VIDIOC_S_EXT_CTRLS:
898 case VIDIOC_TRY_EXT_CTRLS:
899 if (put_v4l2_ext_controls32(file, &karg.v2ecs, up))
908 case VIDIOC_S_OUTPUT:
910 case VIDIOC_G_OUTPUT:
911 err = put_user(((s32)karg.vi), (s32 __user *)up);
915 err = put_v4l2_framebuffer32(&karg.v2fb, up);
919 err = put_v4l2_event32(&karg.v2ev, up);
925 err = put_v4l2_format32(&karg.v2f, up);
928 case VIDIOC_CREATE_BUFS:
929 err = put_v4l2_create32(&karg.v2crt, up);
932 case VIDIOC_PREPARE_BUF:
933 case VIDIOC_QUERYBUF:
936 err = put_v4l2_buffer32(&karg.v2b, up);
940 err = put_v4l2_standard32(&karg.v2s, up);
943 case VIDIOC_ENUMINPUT:
944 err = put_v4l2_input32(&karg.v2i, up);
950 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
952 long ret = -ENOIOCTLCMD;
954 if (!file->f_op->unlocked_ioctl)
958 case VIDIOC_QUERYCAP:
959 case VIDIOC_RESERVED:
960 case VIDIOC_ENUM_FMT:
964 case VIDIOC_QUERYBUF32:
965 case VIDIOC_G_FBUF32:
966 case VIDIOC_S_FBUF32:
967 case VIDIOC_OVERLAY32:
970 case VIDIOC_STREAMON32:
971 case VIDIOC_STREAMOFF32:
976 case VIDIOC_ENUMSTD32:
977 case VIDIOC_ENUMINPUT32:
984 case VIDIOC_QUERYCTRL:
985 case VIDIOC_QUERYMENU:
986 case VIDIOC_G_INPUT32:
987 case VIDIOC_S_INPUT32:
988 case VIDIOC_G_OUTPUT32:
989 case VIDIOC_S_OUTPUT32:
990 case VIDIOC_ENUMOUTPUT:
991 case VIDIOC_G_AUDOUT:
992 case VIDIOC_S_AUDOUT:
993 case VIDIOC_G_MODULATOR:
994 case VIDIOC_S_MODULATOR:
995 case VIDIOC_S_FREQUENCY:
996 case VIDIOC_G_FREQUENCY:
1000 case VIDIOC_G_JPEGCOMP:
1001 case VIDIOC_S_JPEGCOMP:
1002 case VIDIOC_QUERYSTD:
1003 case VIDIOC_TRY_FMT32:
1004 case VIDIOC_ENUMAUDIO:
1005 case VIDIOC_ENUMAUDOUT:
1006 case VIDIOC_G_PRIORITY:
1007 case VIDIOC_S_PRIORITY:
1008 case VIDIOC_G_SLICED_VBI_CAP:
1009 case VIDIOC_LOG_STATUS:
1010 case VIDIOC_G_EXT_CTRLS32:
1011 case VIDIOC_S_EXT_CTRLS32:
1012 case VIDIOC_TRY_EXT_CTRLS32:
1013 case VIDIOC_ENUM_FRAMESIZES:
1014 case VIDIOC_ENUM_FRAMEINTERVALS:
1015 case VIDIOC_G_ENC_INDEX:
1016 case VIDIOC_ENCODER_CMD:
1017 case VIDIOC_TRY_ENCODER_CMD:
1018 case VIDIOC_DBG_S_REGISTER:
1019 case VIDIOC_DBG_G_REGISTER:
1020 case VIDIOC_DBG_G_CHIP_IDENT:
1021 case VIDIOC_S_HW_FREQ_SEEK:
1022 case VIDIOC_ENUM_DV_PRESETS:
1023 case VIDIOC_S_DV_PRESET:
1024 case VIDIOC_G_DV_PRESET:
1025 case VIDIOC_QUERY_DV_PRESET:
1026 case VIDIOC_S_DV_TIMINGS:
1027 case VIDIOC_G_DV_TIMINGS:
1028 case VIDIOC_DQEVENT:
1029 case VIDIOC_DQEVENT32:
1030 case VIDIOC_SUBSCRIBE_EVENT:
1031 case VIDIOC_UNSUBSCRIBE_EVENT:
1032 case VIDIOC_CREATE_BUFS32:
1033 case VIDIOC_PREPARE_BUF32:
1034 ret = do_video_ioctl(file, cmd, arg);
1038 printk(KERN_WARNING "compat_ioctl32: "
1039 "unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1040 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1045 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
1048 MODULE_LICENSE("GPL");