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;
49 static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
51 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) ||
52 copy_from_user(&kp->w, &up->w, sizeof(up->w)) ||
53 get_user(kp->field, &up->field) ||
54 get_user(kp->chromakey, &up->chromakey) ||
55 get_user(kp->clipcount, &up->clipcount) ||
56 get_user(kp->global_alpha, &up->global_alpha))
58 if (kp->clipcount > 2048)
61 struct v4l2_clip32 __user *uclips;
62 struct v4l2_clip __user *kclips;
63 int n = kp->clipcount;
66 if (get_user(p, &up->clips))
68 uclips = compat_ptr(p);
69 kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip));
72 if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c)))
74 if (put_user(n ? kclips + 1 : NULL, &kclips->next))
84 static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
86 if (copy_to_user(&up->w, &kp->w, sizeof(kp->w)) ||
87 put_user(kp->field, &up->field) ||
88 put_user(kp->chromakey, &up->chromakey) ||
89 put_user(kp->clipcount, &up->clipcount) ||
90 put_user(kp->global_alpha, &up->global_alpha))
95 struct v4l2_format32 {
96 __u32 type; /* enum v4l2_buf_type */
98 struct v4l2_pix_format pix;
99 struct v4l2_pix_format_mplane pix_mp;
100 struct v4l2_window32 win;
101 struct v4l2_vbi_format vbi;
102 struct v4l2_sliced_vbi_format sliced;
103 struct v4l2_sdr_format sdr;
104 struct v4l2_meta_format meta;
105 __u8 raw_data[200]; /* user-defined */
110 * struct v4l2_create_buffers32 - VIDIOC_CREATE_BUFS32 argument
111 * @index: on return, index of the first created buffer
112 * @count: entry: number of requested buffers,
113 * return: number of created buffers
114 * @memory: buffer memory type
115 * @format: frame format, for which buffers are requested
116 * @reserved: future extensions
118 struct v4l2_create_buffers32 {
121 __u32 memory; /* enum v4l2_memory */
122 struct v4l2_format32 format;
126 static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
128 if (get_user(kp->type, &up->type))
132 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
133 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
134 return copy_from_user(&kp->fmt.pix, &up->fmt.pix,
135 sizeof(kp->fmt.pix)) ? -EFAULT : 0;
136 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
137 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
138 return copy_from_user(&kp->fmt.pix_mp, &up->fmt.pix_mp,
139 sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
140 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
141 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
142 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
143 case V4L2_BUF_TYPE_VBI_CAPTURE:
144 case V4L2_BUF_TYPE_VBI_OUTPUT:
145 return copy_from_user(&kp->fmt.vbi, &up->fmt.vbi,
146 sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
147 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
148 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
149 return copy_from_user(&kp->fmt.sliced, &up->fmt.sliced,
150 sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
151 case V4L2_BUF_TYPE_SDR_CAPTURE:
152 case V4L2_BUF_TYPE_SDR_OUTPUT:
153 return copy_from_user(&kp->fmt.sdr, &up->fmt.sdr,
154 sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
155 case V4L2_BUF_TYPE_META_CAPTURE:
156 return copy_from_user(&kp->fmt.meta, &up->fmt.meta,
157 sizeof(kp->fmt.meta)) ? -EFAULT : 0;
159 pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
165 static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
167 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)))
169 return __get_v4l2_format32(kp, up);
172 static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
174 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) ||
175 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format)))
177 return __get_v4l2_format32(&kp->format, &up->format);
180 static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
182 if (put_user(kp->type, &up->type))
186 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
187 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
188 return copy_to_user(&up->fmt.pix, &kp->fmt.pix,
189 sizeof(kp->fmt.pix)) ? -EFAULT : 0;
190 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
191 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
192 return copy_to_user(&up->fmt.pix_mp, &kp->fmt.pix_mp,
193 sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
194 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
195 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
196 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
197 case V4L2_BUF_TYPE_VBI_CAPTURE:
198 case V4L2_BUF_TYPE_VBI_OUTPUT:
199 return copy_to_user(&up->fmt.vbi, &kp->fmt.vbi,
200 sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
201 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
202 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
203 return copy_to_user(&up->fmt.sliced, &kp->fmt.sliced,
204 sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
205 case V4L2_BUF_TYPE_SDR_CAPTURE:
206 case V4L2_BUF_TYPE_SDR_OUTPUT:
207 return copy_to_user(&up->fmt.sdr, &kp->fmt.sdr,
208 sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
209 case V4L2_BUF_TYPE_META_CAPTURE:
210 return copy_to_user(&up->fmt.meta, &kp->fmt.meta,
211 sizeof(kp->fmt.meta)) ? -EFAULT : 0;
213 pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
219 static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
221 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)))
223 return __put_v4l2_format32(kp, up);
226 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
228 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
229 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) ||
230 copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
232 return __put_v4l2_format32(&kp->format, &up->format);
235 struct v4l2_standard32 {
239 struct v4l2_fract frameperiod; /* Frames, not fields */
244 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
246 /* other fields are not set by the user, nor used by the driver */
247 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
248 get_user(kp->index, &up->index))
253 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
255 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
256 put_user(kp->index, &up->index) ||
257 put_user(kp->id, &up->id) ||
258 copy_to_user(up->name, kp->name, 24) ||
259 copy_to_user(&up->frameperiod, &kp->frameperiod,
260 sizeof(kp->frameperiod)) ||
261 put_user(kp->framelines, &up->framelines) ||
262 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
267 struct v4l2_plane32 {
272 compat_long_t userptr;
279 struct v4l2_buffer32 {
281 __u32 type; /* enum v4l2_buf_type */
284 __u32 field; /* enum v4l2_field */
285 struct compat_timeval timestamp;
286 struct v4l2_timecode timecode;
289 /* memory location */
290 __u32 memory; /* enum v4l2_memory */
293 compat_long_t userptr;
294 compat_caddr_t planes;
302 static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
303 enum v4l2_memory memory)
308 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
309 copy_in_user(&up->data_offset, &up32->data_offset,
313 if (memory == V4L2_MEMORY_USERPTR) {
314 if (get_user(p, &up32->m.userptr))
316 up_pln = compat_ptr(p);
317 if (put_user((unsigned long)up_pln, &up->m.userptr))
319 } else if (memory == V4L2_MEMORY_DMABUF) {
320 if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int)))
323 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
331 static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
332 enum v4l2_memory memory)
334 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
335 copy_in_user(&up32->data_offset, &up->data_offset,
339 /* For MMAP, driver might've set up the offset, so copy it back.
340 * USERPTR stays the same (was userspace-provided), so no copying. */
341 if (memory == V4L2_MEMORY_MMAP)
342 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
345 /* For DMABUF, driver might've set up the fd, so copy it back. */
346 if (memory == V4L2_MEMORY_DMABUF)
347 if (copy_in_user(&up32->m.fd, &up->m.fd,
354 static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
356 struct v4l2_plane32 __user *uplane32;
357 struct v4l2_plane __user *uplane;
361 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
362 get_user(kp->index, &up->index) ||
363 get_user(kp->type, &up->type) ||
364 get_user(kp->flags, &up->flags) ||
365 get_user(kp->memory, &up->memory) ||
366 get_user(kp->length, &up->length))
369 if (V4L2_TYPE_IS_OUTPUT(kp->type))
370 if (get_user(kp->bytesused, &up->bytesused) ||
371 get_user(kp->field, &up->field) ||
372 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
373 get_user(kp->timestamp.tv_usec,
374 &up->timestamp.tv_usec))
377 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
378 unsigned int num_planes;
380 if (kp->length == 0) {
382 /* num_planes == 0 is legal, e.g. when userspace doesn't
383 * need planes array on DQBUF*/
385 } else if (kp->length > VIDEO_MAX_PLANES) {
389 if (get_user(p, &up->m.planes))
392 uplane32 = compat_ptr(p);
393 if (!access_ok(VERIFY_READ, uplane32,
394 kp->length * sizeof(struct v4l2_plane32)))
397 /* We don't really care if userspace decides to kill itself
398 * by passing a very big num_planes value */
399 uplane = compat_alloc_user_space(kp->length *
400 sizeof(struct v4l2_plane));
401 kp->m.planes = (__force struct v4l2_plane *)uplane;
403 for (num_planes = 0; num_planes < kp->length; num_planes++) {
404 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
411 switch (kp->memory) {
412 case V4L2_MEMORY_MMAP:
413 if (get_user(kp->m.offset, &up->m.offset))
416 case V4L2_MEMORY_USERPTR:
420 if (get_user(tmp, &up->m.userptr))
423 kp->m.userptr = (unsigned long)compat_ptr(tmp);
426 case V4L2_MEMORY_OVERLAY:
427 if (get_user(kp->m.offset, &up->m.offset))
430 case V4L2_MEMORY_DMABUF:
431 if (get_user(kp->m.fd, &up->m.fd))
440 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
442 struct v4l2_plane32 __user *uplane32;
443 struct v4l2_plane __user *uplane;
448 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
449 put_user(kp->index, &up->index) ||
450 put_user(kp->type, &up->type) ||
451 put_user(kp->flags, &up->flags) ||
452 put_user(kp->memory, &up->memory))
455 if (put_user(kp->bytesused, &up->bytesused) ||
456 put_user(kp->field, &up->field) ||
457 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
458 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
459 copy_to_user(&up->timecode, &kp->timecode,
460 sizeof(struct v4l2_timecode)) ||
461 put_user(kp->sequence, &up->sequence) ||
462 put_user(kp->reserved2, &up->reserved2) ||
463 put_user(kp->reserved, &up->reserved) ||
464 put_user(kp->length, &up->length))
467 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
468 num_planes = kp->length;
472 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
473 if (get_user(p, &up->m.planes))
475 uplane32 = compat_ptr(p);
477 while (--num_planes >= 0) {
478 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
485 switch (kp->memory) {
486 case V4L2_MEMORY_MMAP:
487 if (put_user(kp->m.offset, &up->m.offset))
490 case V4L2_MEMORY_USERPTR:
491 if (put_user(kp->m.userptr, &up->m.userptr))
494 case V4L2_MEMORY_OVERLAY:
495 if (put_user(kp->m.offset, &up->m.offset))
498 case V4L2_MEMORY_DMABUF:
499 if (put_user(kp->m.fd, &up->m.fd))
508 struct v4l2_framebuffer32 {
524 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
528 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
529 get_user(tmp, &up->base) ||
530 get_user(kp->capability, &up->capability) ||
531 get_user(kp->flags, &up->flags) ||
532 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
534 kp->base = (__force void *)compat_ptr(tmp);
538 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
540 u32 tmp = (u32)((unsigned long)kp->base);
542 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
543 put_user(tmp, &up->base) ||
544 put_user(kp->capability, &up->capability) ||
545 put_user(kp->flags, &up->flags) ||
546 copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt)))
551 struct v4l2_input32 {
552 __u32 index; /* Which input */
553 __u8 name[32]; /* Label */
554 __u32 type; /* Type of input */
555 __u32 audioset; /* Associated audios (bitfield) */
556 __u32 tuner; /* Associated tuner */
563 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
564 Otherwise it is identical to the 32-bit version. */
565 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
567 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
572 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
574 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
579 struct v4l2_ext_controls32 {
584 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
587 struct v4l2_ext_control32 {
594 compat_caddr_t string; /* actually char * */
596 } __attribute__ ((packed));
598 /* The following function really belong in v4l2-common, but that causes
599 a circular dependency between modules. We need to think about this, but
600 for now this will do. */
602 /* Return non-zero if this control is a pointer type. Currently only
603 type STRING is a pointer type. */
604 static inline int ctrl_is_pointer(u32 id)
607 case V4L2_CID_RDS_TX_PS_NAME:
608 case V4L2_CID_RDS_TX_RADIO_TEXT:
615 static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
617 struct v4l2_ext_control32 __user *ucontrols;
618 struct v4l2_ext_control __user *kcontrols;
622 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
623 get_user(kp->which, &up->which) ||
624 get_user(kp->count, &up->count) ||
625 get_user(kp->error_idx, &up->error_idx) ||
626 copy_from_user(kp->reserved, up->reserved,
627 sizeof(kp->reserved)))
629 if (kp->count == 0) {
632 } else if (kp->count > V4L2_CID_MAX_CTRLS) {
635 if (get_user(p, &up->controls))
637 ucontrols = compat_ptr(p);
638 if (!access_ok(VERIFY_READ, ucontrols,
639 kp->count * sizeof(struct v4l2_ext_control32)))
641 kcontrols = compat_alloc_user_space(kp->count *
642 sizeof(struct v4l2_ext_control));
643 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
644 for (n = 0; n < kp->count; n++) {
647 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
649 if (get_user(id, &kcontrols->id))
651 if (ctrl_is_pointer(id)) {
654 if (get_user(p, &ucontrols->string))
657 if (put_user(s, &kcontrols->string))
666 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
668 struct v4l2_ext_control32 __user *ucontrols;
669 struct v4l2_ext_control __user *kcontrols =
670 (__force struct v4l2_ext_control __user *)kp->controls;
674 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
675 put_user(kp->which, &up->which) ||
676 put_user(kp->count, &up->count) ||
677 put_user(kp->error_idx, &up->error_idx) ||
678 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
683 if (get_user(p, &up->controls))
685 ucontrols = compat_ptr(p);
686 if (!access_ok(VERIFY_WRITE, ucontrols,
687 n * sizeof(struct v4l2_ext_control32)))
691 unsigned size = sizeof(*ucontrols);
694 if (get_user(id, &kcontrols->id))
696 /* Do not modify the pointer when copying a pointer control.
697 The contents of the pointer was changed, not the pointer
699 if (ctrl_is_pointer(id))
700 size -= sizeof(ucontrols->value64);
701 if (copy_in_user(ucontrols, kcontrols, size))
709 struct v4l2_event32 {
717 struct compat_timespec timestamp;
722 static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
724 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
725 put_user(kp->type, &up->type) ||
726 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
727 put_user(kp->pending, &up->pending) ||
728 put_user(kp->sequence, &up->sequence) ||
729 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
730 put_user(kp->timestamp.tv_nsec, &up->timestamp.tv_nsec) ||
731 put_user(kp->id, &up->id) ||
732 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
745 static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
749 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) ||
750 get_user(kp->pad, &up->pad) ||
751 get_user(kp->start_block, &up->start_block) ||
752 get_user(kp->blocks, &up->blocks) ||
753 get_user(tmp, &up->edid) ||
754 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
756 kp->edid = (__force u8 *)compat_ptr(tmp);
760 static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
762 u32 tmp = (u32)((unsigned long)kp->edid);
764 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) ||
765 put_user(kp->pad, &up->pad) ||
766 put_user(kp->start_block, &up->start_block) ||
767 put_user(kp->blocks, &up->blocks) ||
768 put_user(tmp, &up->edid) ||
769 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
775 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
776 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
777 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
778 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
779 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
780 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
781 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
782 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
783 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
784 #define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
785 #define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
786 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
787 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
788 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
789 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
790 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
791 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
792 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
794 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
795 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
796 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
797 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
798 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
799 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
800 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
802 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
805 struct v4l2_format v2f;
806 struct v4l2_buffer v2b;
807 struct v4l2_framebuffer v2fb;
808 struct v4l2_input v2i;
809 struct v4l2_standard v2s;
810 struct v4l2_ext_controls v2ecs;
811 struct v4l2_event v2ev;
812 struct v4l2_create_buffers v2crt;
813 struct v4l2_edid v2edid;
817 void __user *up = compat_ptr(arg);
818 int compatible_arg = 1;
821 /* First, convert the command. */
823 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
824 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
825 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
826 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
827 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
828 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
829 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
830 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
831 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
832 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
833 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
834 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
835 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
836 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
837 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
838 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
839 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
840 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
841 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
842 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
843 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
844 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
845 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
846 case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break;
847 case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break;
852 case VIDIOC_STREAMON:
853 case VIDIOC_STREAMOFF:
855 case VIDIOC_S_OUTPUT:
856 err = get_user(karg.vi, (s32 __user *)up);
861 case VIDIOC_G_OUTPUT:
867 err = get_v4l2_edid32(&karg.v2edid, up);
874 err = get_v4l2_format32(&karg.v2f, up);
878 case VIDIOC_CREATE_BUFS:
879 err = get_v4l2_create32(&karg.v2crt, up);
883 case VIDIOC_PREPARE_BUF:
884 case VIDIOC_QUERYBUF:
887 err = get_v4l2_buffer32(&karg.v2b, up);
892 err = get_v4l2_framebuffer32(&karg.v2fb, up);
901 err = get_v4l2_standard32(&karg.v2s, up);
905 case VIDIOC_ENUMINPUT:
906 err = get_v4l2_input32(&karg.v2i, up);
910 case VIDIOC_G_EXT_CTRLS:
911 case VIDIOC_S_EXT_CTRLS:
912 case VIDIOC_TRY_EXT_CTRLS:
913 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
924 err = native_ioctl(file, cmd, (unsigned long)up);
926 mm_segment_t old_fs = get_fs();
929 err = native_ioctl(file, cmd, (unsigned long)&karg);
933 /* Special case: even after an error we need to put the
934 results back for these ioctls since the error_idx will
935 contain information on which control failed. */
937 case VIDIOC_G_EXT_CTRLS:
938 case VIDIOC_S_EXT_CTRLS:
939 case VIDIOC_TRY_EXT_CTRLS:
940 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
944 if (put_v4l2_edid32(&karg.v2edid, up))
953 case VIDIOC_S_OUTPUT:
955 case VIDIOC_G_OUTPUT:
956 err = put_user(((s32)karg.vi), (s32 __user *)up);
960 err = put_v4l2_framebuffer32(&karg.v2fb, up);
964 err = put_v4l2_event32(&karg.v2ev, up);
968 err = put_v4l2_edid32(&karg.v2edid, up);
974 err = put_v4l2_format32(&karg.v2f, up);
977 case VIDIOC_CREATE_BUFS:
978 err = put_v4l2_create32(&karg.v2crt, up);
981 case VIDIOC_PREPARE_BUF:
982 case VIDIOC_QUERYBUF:
985 err = put_v4l2_buffer32(&karg.v2b, up);
989 err = put_v4l2_standard32(&karg.v2s, up);
992 case VIDIOC_ENUMINPUT:
993 err = put_v4l2_input32(&karg.v2i, up);
999 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
1001 struct video_device *vdev = video_devdata(file);
1002 long ret = -ENOIOCTLCMD;
1004 if (!file->f_op->unlocked_ioctl)
1007 if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
1008 ret = do_video_ioctl(file, cmd, arg);
1009 else if (vdev->fops->compat_ioctl32)
1010 ret = vdev->fops->compat_ioctl32(file, cmd, arg);
1012 if (ret == -ENOIOCTLCMD)
1013 pr_debug("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1014 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1017 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);