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>
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 enum v4l2_field 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 enum v4l2_buf_type 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 enum v4l2_memory memory;
175 struct v4l2_format32 format;
179 static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
182 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
183 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
184 return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
185 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
186 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
187 return get_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
189 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
190 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
191 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
192 case V4L2_BUF_TYPE_VBI_CAPTURE:
193 case V4L2_BUF_TYPE_VBI_OUTPUT:
194 return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
195 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
196 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
197 return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
198 case V4L2_BUF_TYPE_PRIVATE:
199 if (copy_from_user(kp, up, sizeof(kp->fmt.raw_data)))
203 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
209 static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
211 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) ||
212 get_user(kp->type, &up->type))
214 return __get_v4l2_format32(kp, up);
217 static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
219 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) ||
220 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format.fmt)))
222 return __get_v4l2_format32(&kp->format, &up->format);
225 static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
228 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
229 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
230 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
231 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
232 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
233 return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
235 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
236 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
237 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
238 case V4L2_BUF_TYPE_VBI_CAPTURE:
239 case V4L2_BUF_TYPE_VBI_OUTPUT:
240 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
241 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
242 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
243 return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
244 case V4L2_BUF_TYPE_PRIVATE:
245 if (copy_to_user(up, kp, sizeof(up->fmt.raw_data)))
249 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
255 static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
257 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) ||
258 put_user(kp->type, &up->type))
260 return __put_v4l2_format32(kp, up);
263 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
265 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
266 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format.fmt)))
268 return __put_v4l2_format32(&kp->format, &up->format);
271 struct v4l2_standard32 {
273 __u32 id[2]; /* __u64 would get the alignment wrong */
275 struct v4l2_fract frameperiod; /* Frames, not fields */
280 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
282 /* other fields are not set by the user, nor used by the driver */
283 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
284 get_user(kp->index, &up->index))
289 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
291 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
292 put_user(kp->index, &up->index) ||
293 copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
294 copy_to_user(up->name, kp->name, 24) ||
295 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
296 put_user(kp->framelines, &up->framelines) ||
297 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
302 struct v4l2_plane32 {
307 compat_long_t userptr;
313 struct v4l2_buffer32 {
315 enum v4l2_buf_type type;
318 enum v4l2_field field;
319 struct compat_timeval timestamp;
320 struct v4l2_timecode timecode;
323 /* memory location */
324 enum v4l2_memory memory;
327 compat_long_t userptr;
328 compat_caddr_t planes;
335 static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
336 enum v4l2_memory memory)
341 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
342 copy_in_user(&up->data_offset, &up32->data_offset,
346 if (memory == V4L2_MEMORY_USERPTR) {
347 if (get_user(p, &up32->m.userptr))
349 up_pln = compat_ptr(p);
350 if (put_user((unsigned long)up_pln, &up->m.userptr))
353 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
361 static int put_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
362 enum v4l2_memory memory)
364 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
365 copy_in_user(&up32->data_offset, &up->data_offset,
369 /* For MMAP, driver might've set up the offset, so copy it back.
370 * USERPTR stays the same (was userspace-provided), so no copying. */
371 if (memory == V4L2_MEMORY_MMAP)
372 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
379 static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
381 struct v4l2_plane32 __user *uplane32;
382 struct v4l2_plane __user *uplane;
387 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
388 get_user(kp->index, &up->index) ||
389 get_user(kp->type, &up->type) ||
390 get_user(kp->flags, &up->flags) ||
391 get_user(kp->memory, &up->memory) ||
392 get_user(kp->input, &up->input))
395 if (V4L2_TYPE_IS_OUTPUT(kp->type))
396 if (get_user(kp->bytesused, &up->bytesused) ||
397 get_user(kp->field, &up->field) ||
398 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
399 get_user(kp->timestamp.tv_usec,
400 &up->timestamp.tv_usec))
403 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
404 if (get_user(kp->length, &up->length))
407 num_planes = kp->length;
408 if (num_planes == 0) {
410 /* num_planes == 0 is legal, e.g. when userspace doesn't
411 * need planes array on DQBUF*/
415 if (get_user(p, &up->m.planes))
418 uplane32 = compat_ptr(p);
419 if (!access_ok(VERIFY_READ, uplane32,
420 num_planes * sizeof(struct v4l2_plane32)))
423 /* We don't really care if userspace decides to kill itself
424 * by passing a very big num_planes value */
425 uplane = compat_alloc_user_space(num_planes *
426 sizeof(struct v4l2_plane));
427 kp->m.planes = uplane;
429 while (--num_planes >= 0) {
430 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
437 switch (kp->memory) {
438 case V4L2_MEMORY_MMAP:
439 if (get_user(kp->length, &up->length) ||
440 get_user(kp->m.offset, &up->m.offset))
443 case V4L2_MEMORY_USERPTR:
447 if (get_user(kp->length, &up->length) ||
448 get_user(tmp, &up->m.userptr))
451 kp->m.userptr = (unsigned long)compat_ptr(tmp);
454 case V4L2_MEMORY_OVERLAY:
455 if (get_user(kp->m.offset, &up->m.offset))
464 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
466 struct v4l2_plane32 __user *uplane32;
467 struct v4l2_plane __user *uplane;
472 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
473 put_user(kp->index, &up->index) ||
474 put_user(kp->type, &up->type) ||
475 put_user(kp->flags, &up->flags) ||
476 put_user(kp->memory, &up->memory) ||
477 put_user(kp->input, &up->input))
480 if (put_user(kp->bytesused, &up->bytesused) ||
481 put_user(kp->field, &up->field) ||
482 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
483 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
484 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
485 put_user(kp->sequence, &up->sequence) ||
486 put_user(kp->reserved, &up->reserved))
489 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
490 num_planes = kp->length;
494 uplane = kp->m.planes;
495 if (get_user(p, &up->m.planes))
497 uplane32 = compat_ptr(p);
499 while (--num_planes >= 0) {
500 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
507 switch (kp->memory) {
508 case V4L2_MEMORY_MMAP:
509 if (put_user(kp->length, &up->length) ||
510 put_user(kp->m.offset, &up->m.offset))
513 case V4L2_MEMORY_USERPTR:
514 if (put_user(kp->length, &up->length) ||
515 put_user(kp->m.userptr, &up->m.userptr))
518 case V4L2_MEMORY_OVERLAY:
519 if (put_user(kp->m.offset, &up->m.offset))
528 struct v4l2_framebuffer32 {
532 struct v4l2_pix_format fmt;
535 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
539 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
540 get_user(tmp, &up->base) ||
541 get_user(kp->capability, &up->capability) ||
542 get_user(kp->flags, &up->flags))
544 kp->base = compat_ptr(tmp);
545 get_v4l2_pix_format(&kp->fmt, &up->fmt);
549 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
551 u32 tmp = (u32)((unsigned long)kp->base);
553 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
554 put_user(tmp, &up->base) ||
555 put_user(kp->capability, &up->capability) ||
556 put_user(kp->flags, &up->flags))
558 put_v4l2_pix_format(&kp->fmt, &up->fmt);
562 struct v4l2_input32 {
563 __u32 index; /* Which input */
564 __u8 name[32]; /* Label */
565 __u32 type; /* Type of input */
566 __u32 audioset; /* Associated audios (bitfield) */
567 __u32 tuner; /* Associated tuner */
571 } __attribute__ ((packed));
573 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
574 Otherwise it is identical to the 32-bit version. */
575 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
577 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
582 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
584 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
589 struct v4l2_ext_controls32 {
594 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
597 struct v4l2_ext_control32 {
604 compat_caddr_t string; /* actually char * */
606 } __attribute__ ((packed));
608 /* The following function really belong in v4l2-common, but that causes
609 a circular dependency between modules. We need to think about this, but
610 for now this will do. */
612 /* Return non-zero if this control is a pointer type. Currently only
613 type STRING is a pointer type. */
614 static inline int ctrl_is_pointer(u32 id)
617 case V4L2_CID_RDS_TX_PS_NAME:
618 case V4L2_CID_RDS_TX_RADIO_TEXT:
625 static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
627 struct v4l2_ext_control32 __user *ucontrols;
628 struct v4l2_ext_control __user *kcontrols;
632 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
633 get_user(kp->ctrl_class, &up->ctrl_class) ||
634 get_user(kp->count, &up->count) ||
635 get_user(kp->error_idx, &up->error_idx) ||
636 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
643 if (get_user(p, &up->controls))
645 ucontrols = compat_ptr(p);
646 if (!access_ok(VERIFY_READ, ucontrols,
647 n * sizeof(struct v4l2_ext_control32)))
649 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
650 kp->controls = kcontrols;
652 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
654 if (ctrl_is_pointer(kcontrols->id)) {
657 if (get_user(p, &ucontrols->string))
660 if (put_user(s, &kcontrols->string))
669 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
671 struct v4l2_ext_control32 __user *ucontrols;
672 struct v4l2_ext_control __user *kcontrols = kp->controls;
676 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
677 put_user(kp->ctrl_class, &up->ctrl_class) ||
678 put_user(kp->count, &up->count) ||
679 put_user(kp->error_idx, &up->error_idx) ||
680 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
685 if (get_user(p, &up->controls))
687 ucontrols = compat_ptr(p);
688 if (!access_ok(VERIFY_WRITE, ucontrols,
689 n * sizeof(struct v4l2_ext_control32)))
693 unsigned size = sizeof(*ucontrols);
695 /* Do not modify the pointer when copying a pointer control.
696 The contents of the pointer was changed, not the pointer
698 if (ctrl_is_pointer(kcontrols->id))
699 size -= sizeof(ucontrols->value64);
700 if (copy_in_user(ucontrols, kcontrols, size))
708 struct v4l2_event32 {
715 struct compat_timespec timestamp;
720 static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
722 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
723 put_user(kp->type, &up->type) ||
724 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
725 put_user(kp->pending, &up->pending) ||
726 put_user(kp->sequence, &up->sequence) ||
727 put_compat_timespec(&kp->timestamp, &up->timestamp) ||
728 put_user(kp->id, &up->id) ||
729 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
734 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
735 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
736 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
737 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
738 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
739 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
740 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
741 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
742 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
743 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
744 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
745 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
746 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
747 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
748 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
749 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
751 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
752 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
753 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
754 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
755 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
756 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
757 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
759 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
762 struct v4l2_format v2f;
763 struct v4l2_buffer v2b;
764 struct v4l2_framebuffer v2fb;
765 struct v4l2_input v2i;
766 struct v4l2_standard v2s;
767 struct v4l2_ext_controls v2ecs;
768 struct v4l2_event v2ev;
769 struct v4l2_create_buffers v2crt;
773 void __user *up = compat_ptr(arg);
774 int compatible_arg = 1;
777 /* First, convert the command. */
779 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
780 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
781 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
782 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
783 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
784 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
785 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
786 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
787 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
788 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
789 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
790 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
791 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
792 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
793 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
794 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
795 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
796 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
797 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
798 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
799 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
800 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
801 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
806 case VIDIOC_STREAMON:
807 case VIDIOC_STREAMOFF:
809 case VIDIOC_S_OUTPUT:
810 err = get_user(karg.vi, (s32 __user *)up);
815 case VIDIOC_G_OUTPUT:
822 err = get_v4l2_format32(&karg.v2f, up);
826 case VIDIOC_CREATE_BUFS:
827 err = get_v4l2_create32(&karg.v2crt, up);
831 case VIDIOC_PREPARE_BUF:
832 case VIDIOC_QUERYBUF:
835 err = get_v4l2_buffer32(&karg.v2b, up);
840 err = get_v4l2_framebuffer32(&karg.v2fb, up);
849 err = get_v4l2_standard32(&karg.v2s, up);
853 case VIDIOC_ENUMINPUT:
854 err = get_v4l2_input32(&karg.v2i, up);
858 case VIDIOC_G_EXT_CTRLS:
859 case VIDIOC_S_EXT_CTRLS:
860 case VIDIOC_TRY_EXT_CTRLS:
861 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
872 err = native_ioctl(file, cmd, (unsigned long)up);
874 mm_segment_t old_fs = get_fs();
877 err = native_ioctl(file, cmd, (unsigned long)&karg);
881 /* Special case: even after an error we need to put the
882 results back for these ioctls since the error_idx will
883 contain information on which control failed. */
885 case VIDIOC_G_EXT_CTRLS:
886 case VIDIOC_S_EXT_CTRLS:
887 case VIDIOC_TRY_EXT_CTRLS:
888 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
897 case VIDIOC_S_OUTPUT:
899 case VIDIOC_G_OUTPUT:
900 err = put_user(((s32)karg.vi), (s32 __user *)up);
904 err = put_v4l2_framebuffer32(&karg.v2fb, up);
908 err = put_v4l2_event32(&karg.v2ev, up);
914 err = put_v4l2_format32(&karg.v2f, up);
917 case VIDIOC_CREATE_BUFS:
918 err = put_v4l2_create32(&karg.v2crt, up);
921 case VIDIOC_QUERYBUF:
924 err = put_v4l2_buffer32(&karg.v2b, up);
928 err = put_v4l2_standard32(&karg.v2s, up);
931 case VIDIOC_ENUMINPUT:
932 err = put_v4l2_input32(&karg.v2i, up);
938 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
940 long ret = -ENOIOCTLCMD;
942 if (!file->f_op->unlocked_ioctl)
946 case VIDIOC_QUERYCAP:
947 case VIDIOC_RESERVED:
948 case VIDIOC_ENUM_FMT:
952 case VIDIOC_QUERYBUF32:
953 case VIDIOC_G_FBUF32:
954 case VIDIOC_S_FBUF32:
955 case VIDIOC_OVERLAY32:
958 case VIDIOC_STREAMON32:
959 case VIDIOC_STREAMOFF32:
964 case VIDIOC_ENUMSTD32:
965 case VIDIOC_ENUMINPUT32:
972 case VIDIOC_QUERYCTRL:
973 case VIDIOC_QUERYMENU:
974 case VIDIOC_G_INPUT32:
975 case VIDIOC_S_INPUT32:
976 case VIDIOC_G_OUTPUT32:
977 case VIDIOC_S_OUTPUT32:
978 case VIDIOC_ENUMOUTPUT:
979 case VIDIOC_G_AUDOUT:
980 case VIDIOC_S_AUDOUT:
981 case VIDIOC_G_MODULATOR:
982 case VIDIOC_S_MODULATOR:
983 case VIDIOC_S_FREQUENCY:
984 case VIDIOC_G_FREQUENCY:
988 case VIDIOC_G_SELECTION:
989 case VIDIOC_S_SELECTION:
990 case VIDIOC_G_JPEGCOMP:
991 case VIDIOC_S_JPEGCOMP:
992 case VIDIOC_QUERYSTD:
993 case VIDIOC_TRY_FMT32:
994 case VIDIOC_ENUMAUDIO:
995 case VIDIOC_ENUMAUDOUT:
996 case VIDIOC_G_PRIORITY:
997 case VIDIOC_S_PRIORITY:
998 case VIDIOC_G_SLICED_VBI_CAP:
999 case VIDIOC_LOG_STATUS:
1000 case VIDIOC_G_EXT_CTRLS32:
1001 case VIDIOC_S_EXT_CTRLS32:
1002 case VIDIOC_TRY_EXT_CTRLS32:
1003 case VIDIOC_ENUM_FRAMESIZES:
1004 case VIDIOC_ENUM_FRAMEINTERVALS:
1005 case VIDIOC_G_ENC_INDEX:
1006 case VIDIOC_ENCODER_CMD:
1007 case VIDIOC_TRY_ENCODER_CMD:
1008 case VIDIOC_DBG_S_REGISTER:
1009 case VIDIOC_DBG_G_REGISTER:
1010 case VIDIOC_DBG_G_CHIP_IDENT:
1011 case VIDIOC_S_HW_FREQ_SEEK:
1012 case VIDIOC_ENUM_DV_PRESETS:
1013 case VIDIOC_S_DV_PRESET:
1014 case VIDIOC_G_DV_PRESET:
1015 case VIDIOC_QUERY_DV_PRESET:
1016 case VIDIOC_S_DV_TIMINGS:
1017 case VIDIOC_G_DV_TIMINGS:
1018 case VIDIOC_DQEVENT:
1019 case VIDIOC_DQEVENT32:
1020 case VIDIOC_SUBSCRIBE_EVENT:
1021 case VIDIOC_UNSUBSCRIBE_EVENT:
1022 case VIDIOC_CREATE_BUFS32:
1023 case VIDIOC_PREPARE_BUF32:
1024 ret = do_video_ioctl(file, cmd, arg);
1028 printk(KERN_WARNING "compat_ioctl32: "
1029 "unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1030 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1035 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
1038 MODULE_LICENSE("GPL");