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)
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);
201 case V4L2_BUF_TYPE_PRIVATE:
202 if (copy_from_user(kp, up, sizeof(kp->fmt.raw_data)))
206 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
212 static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
214 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)))
216 return __get_v4l2_format32(kp, up);
219 static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
221 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) ||
222 copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format)))
224 return __get_v4l2_format32(&kp->format, &up->format);
227 static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
229 if (put_user(kp->type, &up->type))
233 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
234 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
235 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
236 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
237 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
238 return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
240 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
241 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
242 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
243 case V4L2_BUF_TYPE_VBI_CAPTURE:
244 case V4L2_BUF_TYPE_VBI_OUTPUT:
245 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
246 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
247 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
248 return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
249 case V4L2_BUF_TYPE_PRIVATE:
250 if (copy_to_user(up, kp, sizeof(up->fmt.raw_data)))
254 printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
260 static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
262 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)))
264 return __put_v4l2_format32(kp, up);
267 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
269 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
270 copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)))
272 return __put_v4l2_format32(&kp->format, &up->format);
275 struct v4l2_standard32 {
279 struct v4l2_fract frameperiod; /* Frames, not fields */
284 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
286 /* other fields are not set by the user, nor used by the driver */
287 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
288 get_user(kp->index, &up->index))
293 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
295 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
296 put_user(kp->index, &up->index) ||
297 put_user(kp->id, &up->id) ||
298 copy_to_user(up->name, kp->name, 24) ||
299 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
300 put_user(kp->framelines, &up->framelines) ||
301 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
306 struct v4l2_plane32 {
311 compat_long_t userptr;
317 struct v4l2_buffer32 {
319 enum v4l2_buf_type type;
322 enum v4l2_field field;
323 struct compat_timeval timestamp;
324 struct v4l2_timecode timecode;
327 /* memory location */
328 enum v4l2_memory memory;
331 compat_long_t userptr;
332 compat_caddr_t planes;
339 static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
340 enum v4l2_memory memory)
345 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
346 copy_in_user(&up->data_offset, &up32->data_offset,
350 if (memory == V4L2_MEMORY_USERPTR) {
351 if (get_user(p, &up32->m.userptr))
353 up_pln = compat_ptr(p);
354 if (put_user((unsigned long)up_pln, &up->m.userptr))
357 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
365 static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
366 enum v4l2_memory memory)
368 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
369 copy_in_user(&up32->data_offset, &up->data_offset,
373 /* For MMAP, driver might've set up the offset, so copy it back.
374 * USERPTR stays the same (was userspace-provided), so no copying. */
375 if (memory == V4L2_MEMORY_MMAP)
376 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
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) ||
396 get_user(kp->input, &up->input))
399 if (V4L2_TYPE_IS_OUTPUT(kp->type))
400 if (get_user(kp->bytesused, &up->bytesused) ||
401 get_user(kp->field, &up->field) ||
402 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
403 get_user(kp->timestamp.tv_usec,
404 &up->timestamp.tv_usec))
407 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
408 if (get_user(kp->length, &up->length))
411 num_planes = kp->length;
412 if (num_planes == 0) {
414 /* num_planes == 0 is legal, e.g. when userspace doesn't
415 * need planes array on DQBUF*/
419 if (get_user(p, &up->m.planes))
422 uplane32 = compat_ptr(p);
423 if (!access_ok(VERIFY_READ, uplane32,
424 num_planes * sizeof(struct v4l2_plane32)))
427 /* We don't really care if userspace decides to kill itself
428 * by passing a very big num_planes value */
429 uplane = compat_alloc_user_space(num_planes *
430 sizeof(struct v4l2_plane));
431 kp->m.planes = (__force struct v4l2_plane *)uplane;
433 while (--num_planes >= 0) {
434 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
441 switch (kp->memory) {
442 case V4L2_MEMORY_MMAP:
443 if (get_user(kp->length, &up->length) ||
444 get_user(kp->m.offset, &up->m.offset))
447 case V4L2_MEMORY_USERPTR:
451 if (get_user(kp->length, &up->length) ||
452 get_user(tmp, &up->m.userptr))
455 kp->m.userptr = (unsigned long)compat_ptr(tmp);
458 case V4L2_MEMORY_OVERLAY:
459 if (get_user(kp->m.offset, &up->m.offset))
468 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
470 struct v4l2_plane32 __user *uplane32;
471 struct v4l2_plane __user *uplane;
476 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
477 put_user(kp->index, &up->index) ||
478 put_user(kp->type, &up->type) ||
479 put_user(kp->flags, &up->flags) ||
480 put_user(kp->memory, &up->memory) ||
481 put_user(kp->input, &up->input))
484 if (put_user(kp->bytesused, &up->bytesused) ||
485 put_user(kp->field, &up->field) ||
486 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
487 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
488 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
489 put_user(kp->sequence, &up->sequence) ||
490 put_user(kp->reserved, &up->reserved))
493 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
494 num_planes = kp->length;
498 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
499 if (get_user(p, &up->m.planes))
501 uplane32 = compat_ptr(p);
503 while (--num_planes >= 0) {
504 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
511 switch (kp->memory) {
512 case V4L2_MEMORY_MMAP:
513 if (put_user(kp->length, &up->length) ||
514 put_user(kp->m.offset, &up->m.offset))
517 case V4L2_MEMORY_USERPTR:
518 if (put_user(kp->length, &up->length) ||
519 put_user(kp->m.userptr, &up->m.userptr))
522 case V4L2_MEMORY_OVERLAY:
523 if (put_user(kp->m.offset, &up->m.offset))
532 struct v4l2_framebuffer32 {
536 struct v4l2_pix_format fmt;
539 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
543 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
544 get_user(tmp, &up->base) ||
545 get_user(kp->capability, &up->capability) ||
546 get_user(kp->flags, &up->flags))
548 kp->base = (__force void *)compat_ptr(tmp);
549 get_v4l2_pix_format(&kp->fmt, &up->fmt);
553 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
555 u32 tmp = (u32)((unsigned long)kp->base);
557 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
558 put_user(tmp, &up->base) ||
559 put_user(kp->capability, &up->capability) ||
560 put_user(kp->flags, &up->flags))
562 put_v4l2_pix_format(&kp->fmt, &up->fmt);
566 struct v4l2_input32 {
567 __u32 index; /* Which input */
568 __u8 name[32]; /* Label */
569 __u32 type; /* Type of input */
570 __u32 audioset; /* Associated audios (bitfield) */
571 __u32 tuner; /* Associated tuner */
577 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
578 Otherwise it is identical to the 32-bit version. */
579 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
581 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
586 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
588 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
593 struct v4l2_ext_controls32 {
598 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
601 struct v4l2_ext_control32 {
608 compat_caddr_t string; /* actually char * */
610 } __attribute__ ((packed));
612 /* The following function really belong in v4l2-common, but that causes
613 a circular dependency between modules. We need to think about this, but
614 for now this will do. */
616 /* Return non-zero if this control is a pointer type. Currently only
617 type STRING is a pointer type. */
618 static inline int ctrl_is_pointer(u32 id)
621 case V4L2_CID_RDS_TX_PS_NAME:
622 case V4L2_CID_RDS_TX_RADIO_TEXT:
629 static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
631 struct v4l2_ext_control32 __user *ucontrols;
632 struct v4l2_ext_control __user *kcontrols;
636 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
637 get_user(kp->ctrl_class, &up->ctrl_class) ||
638 get_user(kp->count, &up->count) ||
639 get_user(kp->error_idx, &up->error_idx) ||
640 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
647 if (get_user(p, &up->controls))
649 ucontrols = compat_ptr(p);
650 if (!access_ok(VERIFY_READ, ucontrols,
651 n * sizeof(struct v4l2_ext_control32)))
653 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
654 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
658 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
660 if (get_user(id, &kcontrols->id))
662 if (ctrl_is_pointer(id)) {
665 if (get_user(p, &ucontrols->string))
668 if (put_user(s, &kcontrols->string))
677 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
679 struct v4l2_ext_control32 __user *ucontrols;
680 struct v4l2_ext_control __user *kcontrols =
681 (__force struct v4l2_ext_control __user *)kp->controls;
685 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
686 put_user(kp->ctrl_class, &up->ctrl_class) ||
687 put_user(kp->count, &up->count) ||
688 put_user(kp->error_idx, &up->error_idx) ||
689 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
694 if (get_user(p, &up->controls))
696 ucontrols = compat_ptr(p);
697 if (!access_ok(VERIFY_WRITE, ucontrols,
698 n * sizeof(struct v4l2_ext_control32)))
702 unsigned size = sizeof(*ucontrols);
705 if (get_user(id, &kcontrols->id))
707 /* Do not modify the pointer when copying a pointer control.
708 The contents of the pointer was changed, not the pointer
710 if (ctrl_is_pointer(id))
711 size -= sizeof(ucontrols->value64);
712 if (copy_in_user(ucontrols, kcontrols, size))
720 struct v4l2_event32 {
728 struct compat_timespec timestamp;
733 static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
735 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
736 put_user(kp->type, &up->type) ||
737 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
738 put_user(kp->pending, &up->pending) ||
739 put_user(kp->sequence, &up->sequence) ||
740 put_compat_timespec(&kp->timestamp, &up->timestamp) ||
741 put_user(kp->id, &up->id) ||
742 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
747 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
748 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
749 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
750 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
751 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
752 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
753 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
754 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
755 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
756 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
757 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
758 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
759 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
760 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
761 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
762 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
764 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
765 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
766 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
767 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
768 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
769 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
770 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
772 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
775 struct v4l2_format v2f;
776 struct v4l2_buffer v2b;
777 struct v4l2_framebuffer v2fb;
778 struct v4l2_input v2i;
779 struct v4l2_standard v2s;
780 struct v4l2_ext_controls v2ecs;
781 struct v4l2_event v2ev;
782 struct v4l2_create_buffers v2crt;
786 void __user *up = compat_ptr(arg);
787 int compatible_arg = 1;
790 /* First, convert the command. */
792 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
793 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
794 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
795 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
796 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
797 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
798 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
799 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
800 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
801 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
802 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
803 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
804 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
805 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
806 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
807 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
808 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
809 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
810 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
811 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
812 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
813 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
814 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
819 case VIDIOC_STREAMON:
820 case VIDIOC_STREAMOFF:
822 case VIDIOC_S_OUTPUT:
823 err = get_user(karg.vi, (s32 __user *)up);
828 case VIDIOC_G_OUTPUT:
835 err = get_v4l2_format32(&karg.v2f, up);
839 case VIDIOC_CREATE_BUFS:
840 err = get_v4l2_create32(&karg.v2crt, up);
844 case VIDIOC_PREPARE_BUF:
845 case VIDIOC_QUERYBUF:
848 err = get_v4l2_buffer32(&karg.v2b, up);
853 err = get_v4l2_framebuffer32(&karg.v2fb, up);
862 err = get_v4l2_standard32(&karg.v2s, up);
866 case VIDIOC_ENUMINPUT:
867 err = get_v4l2_input32(&karg.v2i, up);
871 case VIDIOC_G_EXT_CTRLS:
872 case VIDIOC_S_EXT_CTRLS:
873 case VIDIOC_TRY_EXT_CTRLS:
874 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
885 err = native_ioctl(file, cmd, (unsigned long)up);
887 mm_segment_t old_fs = get_fs();
890 err = native_ioctl(file, cmd, (unsigned long)&karg);
894 /* Special case: even after an error we need to put the
895 results back for these ioctls since the error_idx will
896 contain information on which control failed. */
898 case VIDIOC_G_EXT_CTRLS:
899 case VIDIOC_S_EXT_CTRLS:
900 case VIDIOC_TRY_EXT_CTRLS:
901 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
910 case VIDIOC_S_OUTPUT:
912 case VIDIOC_G_OUTPUT:
913 err = put_user(((s32)karg.vi), (s32 __user *)up);
917 err = put_v4l2_framebuffer32(&karg.v2fb, up);
921 err = put_v4l2_event32(&karg.v2ev, up);
927 err = put_v4l2_format32(&karg.v2f, up);
930 case VIDIOC_CREATE_BUFS:
931 err = put_v4l2_create32(&karg.v2crt, up);
934 case VIDIOC_QUERYBUF:
937 err = put_v4l2_buffer32(&karg.v2b, up);
941 err = put_v4l2_standard32(&karg.v2s, up);
944 case VIDIOC_ENUMINPUT:
945 err = put_v4l2_input32(&karg.v2i, up);
951 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
953 long ret = -ENOIOCTLCMD;
955 if (!file->f_op->unlocked_ioctl)
959 case VIDIOC_QUERYCAP:
960 case VIDIOC_RESERVED:
961 case VIDIOC_ENUM_FMT:
965 case VIDIOC_QUERYBUF32:
966 case VIDIOC_G_FBUF32:
967 case VIDIOC_S_FBUF32:
968 case VIDIOC_OVERLAY32:
971 case VIDIOC_STREAMON32:
972 case VIDIOC_STREAMOFF32:
977 case VIDIOC_ENUMSTD32:
978 case VIDIOC_ENUMINPUT32:
985 case VIDIOC_QUERYCTRL:
986 case VIDIOC_QUERYMENU:
987 case VIDIOC_G_INPUT32:
988 case VIDIOC_S_INPUT32:
989 case VIDIOC_G_OUTPUT32:
990 case VIDIOC_S_OUTPUT32:
991 case VIDIOC_ENUMOUTPUT:
992 case VIDIOC_G_AUDOUT:
993 case VIDIOC_S_AUDOUT:
994 case VIDIOC_G_MODULATOR:
995 case VIDIOC_S_MODULATOR:
996 case VIDIOC_S_FREQUENCY:
997 case VIDIOC_G_FREQUENCY:
1001 case VIDIOC_G_JPEGCOMP:
1002 case VIDIOC_S_JPEGCOMP:
1003 case VIDIOC_QUERYSTD:
1004 case VIDIOC_TRY_FMT32:
1005 case VIDIOC_ENUMAUDIO:
1006 case VIDIOC_ENUMAUDOUT:
1007 case VIDIOC_G_PRIORITY:
1008 case VIDIOC_S_PRIORITY:
1009 case VIDIOC_G_SLICED_VBI_CAP:
1010 case VIDIOC_LOG_STATUS:
1011 case VIDIOC_G_EXT_CTRLS32:
1012 case VIDIOC_S_EXT_CTRLS32:
1013 case VIDIOC_TRY_EXT_CTRLS32:
1014 case VIDIOC_ENUM_FRAMESIZES:
1015 case VIDIOC_ENUM_FRAMEINTERVALS:
1016 case VIDIOC_G_ENC_INDEX:
1017 case VIDIOC_ENCODER_CMD:
1018 case VIDIOC_TRY_ENCODER_CMD:
1019 case VIDIOC_DBG_S_REGISTER:
1020 case VIDIOC_DBG_G_REGISTER:
1021 case VIDIOC_DBG_G_CHIP_IDENT:
1022 case VIDIOC_S_HW_FREQ_SEEK:
1023 case VIDIOC_ENUM_DV_PRESETS:
1024 case VIDIOC_S_DV_PRESET:
1025 case VIDIOC_G_DV_PRESET:
1026 case VIDIOC_QUERY_DV_PRESET:
1027 case VIDIOC_S_DV_TIMINGS:
1028 case VIDIOC_G_DV_TIMINGS:
1029 case VIDIOC_DQEVENT:
1030 case VIDIOC_DQEVENT32:
1031 case VIDIOC_SUBSCRIBE_EVENT:
1032 case VIDIOC_UNSUBSCRIBE_EVENT:
1033 case VIDIOC_CREATE_BUFS32:
1034 case VIDIOC_PREPARE_BUF32:
1035 ret = do_video_ioctl(file, cmd, arg);
1039 printk(KERN_WARNING "compat_ioctl32: "
1040 "unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1041 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1046 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
1049 MODULE_LICENSE("GPL");