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)) ||
271 copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
273 return __put_v4l2_format32(&kp->format, &up->format);
276 struct v4l2_standard32 {
280 struct v4l2_fract frameperiod; /* Frames, not fields */
285 static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
287 /* other fields are not set by the user, nor used by the driver */
288 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
289 get_user(kp->index, &up->index))
294 static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
296 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
297 put_user(kp->index, &up->index) ||
298 put_user(kp->id, &up->id) ||
299 copy_to_user(up->name, kp->name, 24) ||
300 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
301 put_user(kp->framelines, &up->framelines) ||
302 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
307 struct v4l2_plane32 {
312 compat_long_t userptr;
318 struct v4l2_buffer32 {
320 enum v4l2_buf_type type;
323 enum v4l2_field field;
324 struct compat_timeval timestamp;
325 struct v4l2_timecode timecode;
328 /* memory location */
329 enum v4l2_memory memory;
332 compat_long_t userptr;
333 compat_caddr_t planes;
340 static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
341 enum v4l2_memory memory)
346 if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
347 copy_in_user(&up->data_offset, &up32->data_offset,
351 if (memory == V4L2_MEMORY_USERPTR) {
352 if (get_user(p, &up32->m.userptr))
354 up_pln = compat_ptr(p);
355 if (put_user((unsigned long)up_pln, &up->m.userptr))
358 if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
366 static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
367 enum v4l2_memory memory)
369 if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
370 copy_in_user(&up32->data_offset, &up->data_offset,
374 /* For MMAP, driver might've set up the offset, so copy it back.
375 * USERPTR stays the same (was userspace-provided), so no copying. */
376 if (memory == V4L2_MEMORY_MMAP)
377 if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
384 static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
386 struct v4l2_plane32 __user *uplane32;
387 struct v4l2_plane __user *uplane;
392 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
393 get_user(kp->index, &up->index) ||
394 get_user(kp->type, &up->type) ||
395 get_user(kp->flags, &up->flags) ||
396 get_user(kp->memory, &up->memory) ||
397 get_user(kp->input, &up->input))
400 if (V4L2_TYPE_IS_OUTPUT(kp->type))
401 if (get_user(kp->bytesused, &up->bytesused) ||
402 get_user(kp->field, &up->field) ||
403 get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
404 get_user(kp->timestamp.tv_usec,
405 &up->timestamp.tv_usec))
408 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
409 if (get_user(kp->length, &up->length))
412 num_planes = kp->length;
413 if (num_planes == 0) {
415 /* num_planes == 0 is legal, e.g. when userspace doesn't
416 * need planes array on DQBUF*/
420 if (get_user(p, &up->m.planes))
423 uplane32 = compat_ptr(p);
424 if (!access_ok(VERIFY_READ, uplane32,
425 num_planes * sizeof(struct v4l2_plane32)))
428 /* We don't really care if userspace decides to kill itself
429 * by passing a very big num_planes value */
430 uplane = compat_alloc_user_space(num_planes *
431 sizeof(struct v4l2_plane));
432 kp->m.planes = (__force struct v4l2_plane *)uplane;
434 while (--num_planes >= 0) {
435 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
442 switch (kp->memory) {
443 case V4L2_MEMORY_MMAP:
444 if (get_user(kp->length, &up->length) ||
445 get_user(kp->m.offset, &up->m.offset))
448 case V4L2_MEMORY_USERPTR:
452 if (get_user(kp->length, &up->length) ||
453 get_user(tmp, &up->m.userptr))
456 kp->m.userptr = (unsigned long)compat_ptr(tmp);
459 case V4L2_MEMORY_OVERLAY:
460 if (get_user(kp->m.offset, &up->m.offset))
469 static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
471 struct v4l2_plane32 __user *uplane32;
472 struct v4l2_plane __user *uplane;
477 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
478 put_user(kp->index, &up->index) ||
479 put_user(kp->type, &up->type) ||
480 put_user(kp->flags, &up->flags) ||
481 put_user(kp->memory, &up->memory) ||
482 put_user(kp->input, &up->input))
485 if (put_user(kp->bytesused, &up->bytesused) ||
486 put_user(kp->field, &up->field) ||
487 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
488 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
489 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
490 put_user(kp->sequence, &up->sequence) ||
491 put_user(kp->reserved, &up->reserved))
494 if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
495 num_planes = kp->length;
499 uplane = (__force struct v4l2_plane __user *)kp->m.planes;
500 if (get_user(p, &up->m.planes))
502 uplane32 = compat_ptr(p);
504 while (--num_planes >= 0) {
505 ret = put_v4l2_plane32(uplane, uplane32, kp->memory);
512 switch (kp->memory) {
513 case V4L2_MEMORY_MMAP:
514 if (put_user(kp->length, &up->length) ||
515 put_user(kp->m.offset, &up->m.offset))
518 case V4L2_MEMORY_USERPTR:
519 if (put_user(kp->length, &up->length) ||
520 put_user(kp->m.userptr, &up->m.userptr))
523 case V4L2_MEMORY_OVERLAY:
524 if (put_user(kp->m.offset, &up->m.offset))
533 struct v4l2_framebuffer32 {
537 struct v4l2_pix_format fmt;
540 static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
544 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
545 get_user(tmp, &up->base) ||
546 get_user(kp->capability, &up->capability) ||
547 get_user(kp->flags, &up->flags))
549 kp->base = (__force void *)compat_ptr(tmp);
550 get_v4l2_pix_format(&kp->fmt, &up->fmt);
554 static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
556 u32 tmp = (u32)((unsigned long)kp->base);
558 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
559 put_user(tmp, &up->base) ||
560 put_user(kp->capability, &up->capability) ||
561 put_user(kp->flags, &up->flags))
563 put_v4l2_pix_format(&kp->fmt, &up->fmt);
567 struct v4l2_input32 {
568 __u32 index; /* Which input */
569 __u8 name[32]; /* Label */
570 __u32 type; /* Type of input */
571 __u32 audioset; /* Associated audios (bitfield) */
572 __u32 tuner; /* Associated tuner */
579 /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
580 Otherwise it is identical to the 32-bit version. */
581 static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
583 if (copy_from_user(kp, up, sizeof(struct v4l2_input32)))
588 static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up)
590 if (copy_to_user(up, kp, sizeof(struct v4l2_input32)))
595 struct v4l2_ext_controls32 {
600 compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */
603 struct v4l2_ext_control32 {
610 compat_caddr_t string; /* actually char * */
612 } __attribute__ ((packed));
614 /* The following function really belong in v4l2-common, but that causes
615 a circular dependency between modules. We need to think about this, but
616 for now this will do. */
618 /* Return non-zero if this control is a pointer type. Currently only
619 type STRING is a pointer type. */
620 static inline int ctrl_is_pointer(u32 id)
623 case V4L2_CID_RDS_TX_PS_NAME:
624 case V4L2_CID_RDS_TX_RADIO_TEXT:
631 static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
633 struct v4l2_ext_control32 __user *ucontrols;
634 struct v4l2_ext_control __user *kcontrols;
638 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) ||
639 get_user(kp->ctrl_class, &up->ctrl_class) ||
640 get_user(kp->count, &up->count) ||
641 get_user(kp->error_idx, &up->error_idx) ||
642 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
649 if (get_user(p, &up->controls))
651 ucontrols = compat_ptr(p);
652 if (!access_ok(VERIFY_READ, ucontrols,
653 n * sizeof(struct v4l2_ext_control32)))
655 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
656 kp->controls = (__force struct v4l2_ext_control *)kcontrols;
660 if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
662 if (get_user(id, &kcontrols->id))
664 if (ctrl_is_pointer(id)) {
667 if (get_user(p, &ucontrols->string))
670 if (put_user(s, &kcontrols->string))
679 static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
681 struct v4l2_ext_control32 __user *ucontrols;
682 struct v4l2_ext_control __user *kcontrols =
683 (__force struct v4l2_ext_control __user *)kp->controls;
687 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) ||
688 put_user(kp->ctrl_class, &up->ctrl_class) ||
689 put_user(kp->count, &up->count) ||
690 put_user(kp->error_idx, &up->error_idx) ||
691 copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
696 if (get_user(p, &up->controls))
698 ucontrols = compat_ptr(p);
699 if (!access_ok(VERIFY_WRITE, ucontrols,
700 n * sizeof(struct v4l2_ext_control32)))
704 unsigned size = sizeof(*ucontrols);
707 if (get_user(id, &kcontrols->id))
709 /* Do not modify the pointer when copying a pointer control.
710 The contents of the pointer was changed, not the pointer
712 if (ctrl_is_pointer(id))
713 size -= sizeof(ucontrols->value64);
714 if (copy_in_user(ucontrols, kcontrols, size))
722 struct v4l2_event32 {
730 struct compat_timespec timestamp;
735 static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
737 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
738 put_user(kp->type, &up->type) ||
739 copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
740 put_user(kp->pending, &up->pending) ||
741 put_user(kp->sequence, &up->sequence) ||
742 put_compat_timespec(&kp->timestamp, &up->timestamp) ||
743 put_user(kp->id, &up->id) ||
744 copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
749 #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
750 #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
751 #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
752 #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
753 #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
754 #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32)
755 #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
756 #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
757 #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
758 #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
759 #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
760 #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
761 #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
762 #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
763 #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32)
764 #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
766 #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
767 #define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
768 #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
769 #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
770 #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
771 #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
772 #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
774 static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
777 struct v4l2_format v2f;
778 struct v4l2_buffer v2b;
779 struct v4l2_framebuffer v2fb;
780 struct v4l2_input v2i;
781 struct v4l2_standard v2s;
782 struct v4l2_ext_controls v2ecs;
783 struct v4l2_event v2ev;
784 struct v4l2_create_buffers v2crt;
788 void __user *up = compat_ptr(arg);
789 int compatible_arg = 1;
792 /* First, convert the command. */
794 case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
795 case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
796 case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
797 case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
798 case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
799 case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
800 case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
801 case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
802 case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
803 case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
804 case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
805 case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
806 case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
807 case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
808 case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
809 case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
810 case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
811 case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
812 case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
813 case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break;
814 case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break;
815 case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break;
816 case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break;
821 case VIDIOC_STREAMON:
822 case VIDIOC_STREAMOFF:
824 case VIDIOC_S_OUTPUT:
825 err = get_user(karg.vi, (s32 __user *)up);
830 case VIDIOC_G_OUTPUT:
837 err = get_v4l2_format32(&karg.v2f, up);
841 case VIDIOC_CREATE_BUFS:
842 err = get_v4l2_create32(&karg.v2crt, up);
846 case VIDIOC_PREPARE_BUF:
847 case VIDIOC_QUERYBUF:
850 err = get_v4l2_buffer32(&karg.v2b, up);
855 err = get_v4l2_framebuffer32(&karg.v2fb, up);
864 err = get_v4l2_standard32(&karg.v2s, up);
868 case VIDIOC_ENUMINPUT:
869 err = get_v4l2_input32(&karg.v2i, up);
873 case VIDIOC_G_EXT_CTRLS:
874 case VIDIOC_S_EXT_CTRLS:
875 case VIDIOC_TRY_EXT_CTRLS:
876 err = get_v4l2_ext_controls32(&karg.v2ecs, up);
887 err = native_ioctl(file, cmd, (unsigned long)up);
889 mm_segment_t old_fs = get_fs();
892 err = native_ioctl(file, cmd, (unsigned long)&karg);
896 /* Special case: even after an error we need to put the
897 results back for these ioctls since the error_idx will
898 contain information on which control failed. */
900 case VIDIOC_G_EXT_CTRLS:
901 case VIDIOC_S_EXT_CTRLS:
902 case VIDIOC_TRY_EXT_CTRLS:
903 if (put_v4l2_ext_controls32(&karg.v2ecs, up))
912 case VIDIOC_S_OUTPUT:
914 case VIDIOC_G_OUTPUT:
915 err = put_user(((s32)karg.vi), (s32 __user *)up);
919 err = put_v4l2_framebuffer32(&karg.v2fb, up);
923 err = put_v4l2_event32(&karg.v2ev, up);
929 err = put_v4l2_format32(&karg.v2f, up);
932 case VIDIOC_CREATE_BUFS:
933 err = put_v4l2_create32(&karg.v2crt, up);
936 case VIDIOC_PREPARE_BUF:
937 case VIDIOC_QUERYBUF:
940 err = put_v4l2_buffer32(&karg.v2b, up);
944 err = put_v4l2_standard32(&karg.v2s, up);
947 case VIDIOC_ENUMINPUT:
948 err = put_v4l2_input32(&karg.v2i, up);
954 long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
956 long ret = -ENOIOCTLCMD;
958 if (!file->f_op->unlocked_ioctl)
962 case VIDIOC_QUERYCAP:
963 case VIDIOC_RESERVED:
964 case VIDIOC_ENUM_FMT:
968 case VIDIOC_QUERYBUF32:
969 case VIDIOC_G_FBUF32:
970 case VIDIOC_S_FBUF32:
971 case VIDIOC_OVERLAY32:
974 case VIDIOC_STREAMON32:
975 case VIDIOC_STREAMOFF32:
980 case VIDIOC_ENUMSTD32:
981 case VIDIOC_ENUMINPUT32:
988 case VIDIOC_QUERYCTRL:
989 case VIDIOC_QUERYMENU:
990 case VIDIOC_G_INPUT32:
991 case VIDIOC_S_INPUT32:
992 case VIDIOC_G_OUTPUT32:
993 case VIDIOC_S_OUTPUT32:
994 case VIDIOC_ENUMOUTPUT:
995 case VIDIOC_G_AUDOUT:
996 case VIDIOC_S_AUDOUT:
997 case VIDIOC_G_MODULATOR:
998 case VIDIOC_S_MODULATOR:
999 case VIDIOC_S_FREQUENCY:
1000 case VIDIOC_G_FREQUENCY:
1001 case VIDIOC_CROPCAP:
1004 case VIDIOC_G_JPEGCOMP:
1005 case VIDIOC_S_JPEGCOMP:
1006 case VIDIOC_QUERYSTD:
1007 case VIDIOC_TRY_FMT32:
1008 case VIDIOC_ENUMAUDIO:
1009 case VIDIOC_ENUMAUDOUT:
1010 case VIDIOC_G_PRIORITY:
1011 case VIDIOC_S_PRIORITY:
1012 case VIDIOC_G_SLICED_VBI_CAP:
1013 case VIDIOC_LOG_STATUS:
1014 case VIDIOC_G_EXT_CTRLS32:
1015 case VIDIOC_S_EXT_CTRLS32:
1016 case VIDIOC_TRY_EXT_CTRLS32:
1017 case VIDIOC_ENUM_FRAMESIZES:
1018 case VIDIOC_ENUM_FRAMEINTERVALS:
1019 case VIDIOC_G_ENC_INDEX:
1020 case VIDIOC_ENCODER_CMD:
1021 case VIDIOC_TRY_ENCODER_CMD:
1022 case VIDIOC_DBG_S_REGISTER:
1023 case VIDIOC_DBG_G_REGISTER:
1024 case VIDIOC_DBG_G_CHIP_IDENT:
1025 case VIDIOC_S_HW_FREQ_SEEK:
1026 case VIDIOC_ENUM_DV_PRESETS:
1027 case VIDIOC_S_DV_PRESET:
1028 case VIDIOC_G_DV_PRESET:
1029 case VIDIOC_QUERY_DV_PRESET:
1030 case VIDIOC_S_DV_TIMINGS:
1031 case VIDIOC_G_DV_TIMINGS:
1032 case VIDIOC_DQEVENT:
1033 case VIDIOC_DQEVENT32:
1034 case VIDIOC_SUBSCRIBE_EVENT:
1035 case VIDIOC_UNSUBSCRIBE_EVENT:
1036 case VIDIOC_CREATE_BUFS32:
1037 case VIDIOC_PREPARE_BUF32:
1038 ret = do_video_ioctl(file, cmd, arg);
1042 printk(KERN_WARNING "compat_ioctl32: "
1043 "unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
1044 _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
1049 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);
1052 MODULE_LICENSE("GPL");