Commit | Line | Data |
---|---|---|
cf664a64 PDM |
1 | /* |
2 | * ioctl32.c: Conversion between 32bit and 64bit native ioctls. | |
3 | * Separated from fs stuff by Arnd Bergmann <arnd@arndb.de> | |
4 | * | |
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 | |
a2531293 | 8 | * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz) |
cf664a64 | 9 | * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be) |
92f45bad | 10 | * Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> |
cf664a64 PDM |
11 | * |
12 | * These routines maintain argument size conversion between 32bit and 64bit | |
13 | * ioctls. | |
14 | */ | |
15 | ||
0d0fbf81 | 16 | #include <linux/compat.h> |
133b7354 | 17 | #include <linux/module.h> |
b9d0aa6e | 18 | #include <linux/videodev2.h> |
ed45ce2c | 19 | #include <linux/v4l2-subdev.h> |
b9d0aa6e | 20 | #include <media/v4l2-dev.h> |
2864462e | 21 | #include <media/v4l2-ioctl.h> |
0d0fbf81 | 22 | |
069b7479 | 23 | static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
92f45bad | 24 | { |
069b7479 | 25 | long ret = -ENOIOCTLCMD; |
92f45bad HV |
26 | |
27 | if (file->f_op->unlocked_ioctl) | |
28 | ret = file->f_op->unlocked_ioctl(file, cmd, arg); | |
92f45bad HV |
29 | |
30 | return ret; | |
31 | } | |
32 | ||
33 | ||
d1f81da2 | 34 | struct v4l2_clip32 { |
cf664a64 PDM |
35 | struct v4l2_rect c; |
36 | compat_caddr_t next; | |
37 | }; | |
38 | ||
d1f81da2 | 39 | struct v4l2_window32 { |
cf664a64 | 40 | struct v4l2_rect w; |
6016af82 | 41 | __u32 field; /* enum v4l2_field */ |
cf664a64 PDM |
42 | __u32 chromakey; |
43 | compat_caddr_t clips; /* actually struct v4l2_clip32 * */ | |
44 | __u32 clipcount; | |
45 | compat_caddr_t bitmap; | |
46 | }; | |
47 | ||
48 | static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
49 | { | |
a113bc78 GM |
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)) | |
55 | return -EFAULT; | |
cf664a64 PDM |
56 | if (kp->clipcount > 2048) |
57 | return -EINVAL; | |
58 | if (kp->clipcount) { | |
5b1a43d7 AV |
59 | struct v4l2_clip32 __user *uclips; |
60 | struct v4l2_clip __user *kclips; | |
cf664a64 | 61 | int n = kp->clipcount; |
5b1a43d7 | 62 | compat_caddr_t p; |
cf664a64 | 63 | |
5b1a43d7 AV |
64 | if (get_user(p, &up->clips)) |
65 | return -EFAULT; | |
66 | uclips = compat_ptr(p); | |
cf664a64 PDM |
67 | kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip)); |
68 | kp->clips = kclips; | |
69 | while (--n >= 0) { | |
5b1a43d7 AV |
70 | if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c))) |
71 | return -EFAULT; | |
72 | if (put_user(n ? kclips + 1 : NULL, &kclips->next)) | |
a113bc78 | 73 | return -EFAULT; |
cf664a64 PDM |
74 | uclips += 1; |
75 | kclips += 1; | |
76 | } | |
77 | } else | |
5b1a43d7 | 78 | kp->clips = NULL; |
cf664a64 PDM |
79 | return 0; |
80 | } | |
81 | ||
82 | static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
83 | { | |
f2e6c6ad | 84 | if (copy_to_user(&up->w, &kp->w, sizeof(kp->w)) || |
a113bc78 GM |
85 | put_user(kp->field, &up->field) || |
86 | put_user(kp->chromakey, &up->chromakey) || | |
87 | put_user(kp->clipcount, &up->clipcount)) | |
88 | return -EFAULT; | |
cf664a64 PDM |
89 | return 0; |
90 | } | |
91 | ||
92 | static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) | |
93 | { | |
5b1a43d7 AV |
94 | if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format))) |
95 | return -EFAULT; | |
a113bc78 | 96 | return 0; |
cf664a64 PDM |
97 | } |
98 | ||
52a3082f PO |
99 | static inline int get_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp, |
100 | struct v4l2_pix_format_mplane __user *up) | |
101 | { | |
102 | if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format_mplane))) | |
103 | return -EFAULT; | |
104 | return 0; | |
105 | } | |
106 | ||
cf664a64 PDM |
107 | static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) |
108 | { | |
5b1a43d7 AV |
109 | if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format))) |
110 | return -EFAULT; | |
a113bc78 | 111 | return 0; |
cf664a64 PDM |
112 | } |
113 | ||
52a3082f PO |
114 | static inline int put_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp, |
115 | struct v4l2_pix_format_mplane __user *up) | |
116 | { | |
117 | if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format_mplane))) | |
118 | return -EFAULT; | |
119 | return 0; | |
120 | } | |
121 | ||
cf664a64 PDM |
122 | static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) |
123 | { | |
5b1a43d7 AV |
124 | if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format))) |
125 | return -EFAULT; | |
a113bc78 | 126 | return 0; |
cf664a64 PDM |
127 | } |
128 | ||
129 | static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) | |
130 | { | |
5b1a43d7 AV |
131 | if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format))) |
132 | return -EFAULT; | |
a113bc78 | 133 | return 0; |
cf664a64 PDM |
134 | } |
135 | ||
92f45bad HV |
136 | static inline int get_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up) |
137 | { | |
138 | if (copy_from_user(kp, up, sizeof(struct v4l2_sliced_vbi_format))) | |
139 | return -EFAULT; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | static inline int put_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up) | |
144 | { | |
145 | if (copy_to_user(up, kp, sizeof(struct v4l2_sliced_vbi_format))) | |
146 | return -EFAULT; | |
147 | return 0; | |
148 | } | |
149 | ||
d1f81da2 | 150 | struct v4l2_format32 { |
6016af82 | 151 | __u32 type; /* enum v4l2_buf_type */ |
d1f81da2 | 152 | union { |
92f45bad | 153 | struct v4l2_pix_format pix; |
52a3082f | 154 | struct v4l2_pix_format_mplane pix_mp; |
92f45bad HV |
155 | struct v4l2_window32 win; |
156 | struct v4l2_vbi_format vbi; | |
157 | struct v4l2_sliced_vbi_format sliced; | |
d1f81da2 | 158 | __u8 raw_data[200]; /* user-defined */ |
cf664a64 PDM |
159 | } fmt; |
160 | }; | |
161 | ||
09362ec2 GL |
162 | /** |
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 | |
170 | */ | |
2150158b | 171 | struct v4l2_create_buffers32 { |
09362ec2 | 172 | __u32 index; |
2150158b | 173 | __u32 count; |
6016af82 | 174 | __u32 memory; /* enum v4l2_memory */ |
09362ec2 | 175 | struct v4l2_format32 format; |
2150158b GL |
176 | __u32 reserved[8]; |
177 | }; | |
178 | ||
179 | static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
cf664a64 | 180 | { |
ec77581a GL |
181 | if (get_user(kp->type, &up->type)) |
182 | return -EFAULT; | |
183 | ||
cf664a64 PDM |
184 | switch (kp->type) { |
185 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
92f45bad | 186 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
cf664a64 | 187 | return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
52a3082f PO |
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, | |
191 | &up->fmt.pix_mp); | |
cf664a64 | 192 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
92f45bad | 193 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
cf664a64 PDM |
194 | return get_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
195 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
92f45bad | 196 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
cf664a64 | 197 | return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
92f45bad HV |
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); | |
cf664a64 | 201 | default: |
92f45bad | 202 | printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n", |
cf664a64 | 203 | kp->type); |
92f45bad | 204 | return -EINVAL; |
cf664a64 PDM |
205 | } |
206 | } | |
207 | ||
2150158b GL |
208 | static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
209 | { | |
ec77581a GL |
210 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32))) |
211 | return -EFAULT; | |
2150158b GL |
212 | return __get_v4l2_format32(kp, up); |
213 | } | |
214 | ||
215 | static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) | |
216 | { | |
217 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) || | |
ec77581a GL |
218 | copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format))) |
219 | return -EFAULT; | |
2150158b GL |
220 | return __get_v4l2_format32(&kp->format, &up->format); |
221 | } | |
222 | ||
223 | static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
cf664a64 | 224 | { |
6ed9b285 GL |
225 | if (put_user(kp->type, &up->type)) |
226 | return -EFAULT; | |
227 | ||
cf664a64 PDM |
228 | switch (kp->type) { |
229 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
92f45bad | 230 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
cf664a64 | 231 | return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
52a3082f PO |
232 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
233 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
234 | return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp, | |
235 | &up->fmt.pix_mp); | |
cf664a64 | 236 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
92f45bad | 237 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
cf664a64 PDM |
238 | return put_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
239 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
92f45bad | 240 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
cf664a64 | 241 | return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
92f45bad HV |
242 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
243 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
244 | return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced); | |
cf664a64 | 245 | default: |
92f45bad HV |
246 | printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n", |
247 | kp->type); | |
248 | return -EINVAL; | |
cf664a64 PDM |
249 | } |
250 | } | |
251 | ||
2150158b GL |
252 | static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
253 | { | |
6ed9b285 | 254 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32))) |
2150158b GL |
255 | return -EFAULT; |
256 | return __put_v4l2_format32(kp, up); | |
257 | } | |
258 | ||
259 | static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) | |
260 | { | |
261 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) || | |
6ed9b285 GL |
262 | copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format))) |
263 | return -EFAULT; | |
2150158b GL |
264 | return __put_v4l2_format32(&kp->format, &up->format); |
265 | } | |
266 | ||
d1f81da2 | 267 | struct v4l2_standard32 { |
cf664a64 PDM |
268 | __u32 index; |
269 | __u32 id[2]; /* __u64 would get the alignment wrong */ | |
270 | __u8 name[24]; | |
271 | struct v4l2_fract frameperiod; /* Frames, not fields */ | |
272 | __u32 framelines; | |
273 | __u32 reserved[4]; | |
274 | }; | |
275 | ||
276 | static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
277 | { | |
278 | /* other fields are not set by the user, nor used by the driver */ | |
a113bc78 GM |
279 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) || |
280 | get_user(kp->index, &up->index)) | |
281 | return -EFAULT; | |
282 | return 0; | |
cf664a64 PDM |
283 | } |
284 | ||
285 | static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
286 | { | |
d1f81da2 | 287 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) || |
a113bc78 GM |
288 | put_user(kp->index, &up->index) || |
289 | copy_to_user(up->id, &kp->id, sizeof(__u64)) || | |
290 | copy_to_user(up->name, kp->name, 24) || | |
291 | copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) || | |
292 | put_user(kp->framelines, &up->framelines) || | |
293 | copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32))) | |
294 | return -EFAULT; | |
295 | return 0; | |
296 | } | |
297 | ||
52a3082f PO |
298 | struct v4l2_plane32 { |
299 | __u32 bytesused; | |
300 | __u32 length; | |
301 | union { | |
302 | __u32 mem_offset; | |
303 | compat_long_t userptr; | |
051c7788 | 304 | __s32 fd; |
52a3082f PO |
305 | } m; |
306 | __u32 data_offset; | |
307 | __u32 reserved[11]; | |
308 | }; | |
309 | ||
d1f81da2 | 310 | struct v4l2_buffer32 { |
cf664a64 | 311 | __u32 index; |
6016af82 | 312 | __u32 type; /* enum v4l2_buf_type */ |
cf664a64 PDM |
313 | __u32 bytesused; |
314 | __u32 flags; | |
6016af82 | 315 | __u32 field; /* enum v4l2_field */ |
cf664a64 PDM |
316 | struct compat_timeval timestamp; |
317 | struct v4l2_timecode timecode; | |
318 | __u32 sequence; | |
319 | ||
320 | /* memory location */ | |
6016af82 | 321 | __u32 memory; /* enum v4l2_memory */ |
cf664a64 PDM |
322 | union { |
323 | __u32 offset; | |
324 | compat_long_t userptr; | |
52a3082f | 325 | compat_caddr_t planes; |
051c7788 | 326 | __s32 fd; |
cf664a64 PDM |
327 | } m; |
328 | __u32 length; | |
2b719d7b | 329 | __u32 reserved2; |
cf664a64 PDM |
330 | __u32 reserved; |
331 | }; | |
332 | ||
8ae632b1 | 333 | static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32, |
52a3082f PO |
334 | enum v4l2_memory memory) |
335 | { | |
336 | void __user *up_pln; | |
337 | compat_long_t p; | |
338 | ||
339 | if (copy_in_user(up, up32, 2 * sizeof(__u32)) || | |
340 | copy_in_user(&up->data_offset, &up32->data_offset, | |
341 | sizeof(__u32))) | |
342 | return -EFAULT; | |
343 | ||
344 | if (memory == V4L2_MEMORY_USERPTR) { | |
345 | if (get_user(p, &up32->m.userptr)) | |
346 | return -EFAULT; | |
347 | up_pln = compat_ptr(p); | |
348 | if (put_user((unsigned long)up_pln, &up->m.userptr)) | |
349 | return -EFAULT; | |
051c7788 SS |
350 | } else if (memory == V4L2_MEMORY_DMABUF) { |
351 | if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int))) | |
352 | return -EFAULT; | |
52a3082f PO |
353 | } else { |
354 | if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset, | |
355 | sizeof(__u32))) | |
356 | return -EFAULT; | |
357 | } | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
8ae632b1 | 362 | static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32, |
52a3082f PO |
363 | enum v4l2_memory memory) |
364 | { | |
365 | if (copy_in_user(up32, up, 2 * sizeof(__u32)) || | |
366 | copy_in_user(&up32->data_offset, &up->data_offset, | |
367 | sizeof(__u32))) | |
368 | return -EFAULT; | |
369 | ||
370 | /* For MMAP, driver might've set up the offset, so copy it back. | |
371 | * USERPTR stays the same (was userspace-provided), so no copying. */ | |
372 | if (memory == V4L2_MEMORY_MMAP) | |
373 | if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset, | |
374 | sizeof(__u32))) | |
375 | return -EFAULT; | |
051c7788 SS |
376 | /* For DMABUF, driver might've set up the fd, so copy it back. */ |
377 | if (memory == V4L2_MEMORY_DMABUF) | |
378 | if (copy_in_user(&up32->m.fd, &up->m.fd, | |
379 | sizeof(int))) | |
380 | return -EFAULT; | |
52a3082f PO |
381 | |
382 | return 0; | |
383 | } | |
384 | ||
cf664a64 PDM |
385 | static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) |
386 | { | |
52a3082f PO |
387 | struct v4l2_plane32 __user *uplane32; |
388 | struct v4l2_plane __user *uplane; | |
389 | compat_caddr_t p; | |
390 | int num_planes; | |
391 | int ret; | |
cf664a64 | 392 | |
a113bc78 GM |
393 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) || |
394 | get_user(kp->index, &up->index) || | |
395 | get_user(kp->type, &up->type) || | |
396 | get_user(kp->flags, &up->flags) || | |
cc831f84 | 397 | get_user(kp->memory, &up->memory)) |
a113bc78 | 398 | return -EFAULT; |
52a3082f PO |
399 | |
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)) | |
22c859fa | 406 | return -EFAULT; |
cf664a64 | 407 | |
52a3082f PO |
408 | if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { |
409 | if (get_user(kp->length, &up->length)) | |
5b1a43d7 AV |
410 | return -EFAULT; |
411 | ||
52a3082f PO |
412 | num_planes = kp->length; |
413 | if (num_planes == 0) { | |
414 | kp->m.planes = NULL; | |
415 | /* num_planes == 0 is legal, e.g. when userspace doesn't | |
416 | * need planes array on DQBUF*/ | |
417 | return 0; | |
cf664a64 | 418 | } |
52a3082f PO |
419 | |
420 | if (get_user(p, &up->m.planes)) | |
a113bc78 | 421 | return -EFAULT; |
52a3082f PO |
422 | |
423 | uplane32 = compat_ptr(p); | |
424 | if (!access_ok(VERIFY_READ, uplane32, | |
425 | num_planes * sizeof(struct v4l2_plane32))) | |
426 | return -EFAULT; | |
427 | ||
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)); | |
8ae632b1 | 432 | kp->m.planes = (__force struct v4l2_plane *)uplane; |
52a3082f PO |
433 | |
434 | while (--num_planes >= 0) { | |
435 | ret = get_v4l2_plane32(uplane, uplane32, kp->memory); | |
436 | if (ret) | |
437 | return ret; | |
438 | ++uplane; | |
439 | ++uplane32; | |
440 | } | |
441 | } else { | |
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)) | |
446 | return -EFAULT; | |
447 | break; | |
448 | case V4L2_MEMORY_USERPTR: | |
449 | { | |
450 | compat_long_t tmp; | |
451 | ||
452 | if (get_user(kp->length, &up->length) || | |
453 | get_user(tmp, &up->m.userptr)) | |
454 | return -EFAULT; | |
455 | ||
456 | kp->m.userptr = (unsigned long)compat_ptr(tmp); | |
457 | } | |
458 | break; | |
459 | case V4L2_MEMORY_OVERLAY: | |
460 | if (get_user(kp->m.offset, &up->m.offset)) | |
461 | return -EFAULT; | |
462 | break; | |
051c7788 SS |
463 | case V4L2_MEMORY_DMABUF: |
464 | if (get_user(kp->m.fd, &up->m.fd)) | |
465 | return -EFAULT; | |
466 | break; | |
52a3082f | 467 | } |
cf664a64 | 468 | } |
52a3082f | 469 | |
cf664a64 PDM |
470 | return 0; |
471 | } | |
472 | ||
473 | static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) | |
474 | { | |
52a3082f PO |
475 | struct v4l2_plane32 __user *uplane32; |
476 | struct v4l2_plane __user *uplane; | |
477 | compat_caddr_t p; | |
478 | int num_planes; | |
479 | int ret; | |
480 | ||
a113bc78 GM |
481 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) || |
482 | put_user(kp->index, &up->index) || | |
483 | put_user(kp->type, &up->type) || | |
484 | put_user(kp->flags, &up->flags) || | |
cc831f84 | 485 | put_user(kp->memory, &up->memory)) |
a113bc78 | 486 | return -EFAULT; |
52a3082f | 487 | |
a113bc78 GM |
488 | if (put_user(kp->bytesused, &up->bytesused) || |
489 | put_user(kp->field, &up->field) || | |
490 | put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || | |
491 | put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) || | |
492 | copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) || | |
493 | put_user(kp->sequence, &up->sequence) || | |
2b719d7b | 494 | put_user(kp->reserved2, &up->reserved2) || |
cc831f84 | 495 | put_user(kp->reserved, &up->reserved)) |
a113bc78 | 496 | return -EFAULT; |
52a3082f PO |
497 | |
498 | if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { | |
499 | num_planes = kp->length; | |
500 | if (num_planes == 0) | |
501 | return 0; | |
502 | ||
8ae632b1 | 503 | uplane = (__force struct v4l2_plane __user *)kp->m.planes; |
52a3082f PO |
504 | if (get_user(p, &up->m.planes)) |
505 | return -EFAULT; | |
506 | uplane32 = compat_ptr(p); | |
507 | ||
508 | while (--num_planes >= 0) { | |
509 | ret = put_v4l2_plane32(uplane, uplane32, kp->memory); | |
510 | if (ret) | |
511 | return ret; | |
512 | ++uplane; | |
513 | ++uplane32; | |
514 | } | |
515 | } else { | |
516 | switch (kp->memory) { | |
517 | case V4L2_MEMORY_MMAP: | |
518 | if (put_user(kp->length, &up->length) || | |
519 | put_user(kp->m.offset, &up->m.offset)) | |
520 | return -EFAULT; | |
521 | break; | |
522 | case V4L2_MEMORY_USERPTR: | |
523 | if (put_user(kp->length, &up->length) || | |
524 | put_user(kp->m.userptr, &up->m.userptr)) | |
525 | return -EFAULT; | |
526 | break; | |
527 | case V4L2_MEMORY_OVERLAY: | |
528 | if (put_user(kp->m.offset, &up->m.offset)) | |
529 | return -EFAULT; | |
530 | break; | |
051c7788 SS |
531 | case V4L2_MEMORY_DMABUF: |
532 | if (put_user(kp->m.fd, &up->m.fd)) | |
533 | return -EFAULT; | |
534 | break; | |
52a3082f PO |
535 | } |
536 | } | |
537 | ||
cf664a64 PDM |
538 | return 0; |
539 | } | |
540 | ||
d1f81da2 | 541 | struct v4l2_framebuffer32 { |
cf664a64 PDM |
542 | __u32 capability; |
543 | __u32 flags; | |
544 | compat_caddr_t base; | |
d52e2381 LP |
545 | struct { |
546 | __u32 width; | |
547 | __u32 height; | |
548 | __u32 pixelformat; | |
549 | __u32 field; | |
550 | __u32 bytesperline; | |
551 | __u32 sizeimage; | |
552 | __u32 colorspace; | |
553 | __u32 priv; | |
554 | } fmt; | |
cf664a64 PDM |
555 | }; |
556 | ||
13d133bc PDM |
557 | static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
558 | { | |
559 | u32 tmp; | |
560 | ||
a113bc78 GM |
561 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) || |
562 | get_user(tmp, &up->base) || | |
563 | get_user(kp->capability, &up->capability) || | |
d52e2381 LP |
564 | get_user(kp->flags, &up->flags) || |
565 | copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt))) | |
a113bc78 | 566 | return -EFAULT; |
8ae632b1 | 567 | kp->base = (__force void *)compat_ptr(tmp); |
13d133bc PDM |
568 | return 0; |
569 | } | |
570 | ||
cf664a64 PDM |
571 | static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
572 | { | |
573 | u32 tmp = (u32)((unsigned long)kp->base); | |
574 | ||
d1f81da2 | 575 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) || |
a113bc78 GM |
576 | put_user(tmp, &up->base) || |
577 | put_user(kp->capability, &up->capability) || | |
d52e2381 LP |
578 | put_user(kp->flags, &up->flags) || |
579 | copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt))) | |
a113bc78 | 580 | return -EFAULT; |
cf664a64 PDM |
581 | return 0; |
582 | } | |
583 | ||
92f45bad HV |
584 | struct v4l2_input32 { |
585 | __u32 index; /* Which input */ | |
586 | __u8 name[32]; /* Label */ | |
587 | __u32 type; /* Type of input */ | |
588 | __u32 audioset; /* Associated audios (bitfield) */ | |
589 | __u32 tuner; /* Associated tuner */ | |
590 | v4l2_std_id std; | |
591 | __u32 status; | |
592 | __u32 reserved[4]; | |
593 | } __attribute__ ((packed)); | |
594 | ||
595 | /* The 64-bit v4l2_input struct has extra padding at the end of the struct. | |
596 | Otherwise it is identical to the 32-bit version. */ | |
597 | static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up) | |
a113bc78 | 598 | { |
92f45bad | 599 | if (copy_from_user(kp, up, sizeof(struct v4l2_input32))) |
5b1a43d7 | 600 | return -EFAULT; |
a113bc78 GM |
601 | return 0; |
602 | } | |
603 | ||
92f45bad | 604 | static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up) |
a113bc78 | 605 | { |
92f45bad | 606 | if (copy_to_user(up, kp, sizeof(struct v4l2_input32))) |
5b1a43d7 | 607 | return -EFAULT; |
a113bc78 GM |
608 | return 0; |
609 | } | |
610 | ||
92f45bad HV |
611 | struct v4l2_ext_controls32 { |
612 | __u32 ctrl_class; | |
613 | __u32 count; | |
614 | __u32 error_idx; | |
615 | __u32 reserved[2]; | |
616 | compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */ | |
eb4eeccc MCC |
617 | }; |
618 | ||
6b5a9492 HV |
619 | struct v4l2_ext_control32 { |
620 | __u32 id; | |
621 | __u32 size; | |
622 | __u32 reserved2[1]; | |
623 | union { | |
624 | __s32 value; | |
625 | __s64 value64; | |
626 | compat_caddr_t string; /* actually char * */ | |
627 | }; | |
628 | } __attribute__ ((packed)); | |
629 | ||
630 | /* The following function really belong in v4l2-common, but that causes | |
631 | a circular dependency between modules. We need to think about this, but | |
632 | for now this will do. */ | |
633 | ||
634 | /* Return non-zero if this control is a pointer type. Currently only | |
fdf82dc2 | 635 | type STRING is a pointer type. */ |
6b5a9492 HV |
636 | static inline int ctrl_is_pointer(u32 id) |
637 | { | |
fdf82dc2 EV |
638 | switch (id) { |
639 | case V4L2_CID_RDS_TX_PS_NAME: | |
640 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
641 | return 1; | |
642 | default: | |
643 | return 0; | |
644 | } | |
6b5a9492 HV |
645 | } |
646 | ||
92f45bad | 647 | static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up) |
eb4eeccc | 648 | { |
6b5a9492 | 649 | struct v4l2_ext_control32 __user *ucontrols; |
92f45bad HV |
650 | struct v4l2_ext_control __user *kcontrols; |
651 | int n; | |
652 | compat_caddr_t p; | |
653 | ||
654 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) || | |
655 | get_user(kp->ctrl_class, &up->ctrl_class) || | |
656 | get_user(kp->count, &up->count) || | |
657 | get_user(kp->error_idx, &up->error_idx) || | |
658 | copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved))) | |
659 | return -EFAULT; | |
660 | n = kp->count; | |
661 | if (n == 0) { | |
662 | kp->controls = NULL; | |
663 | return 0; | |
664 | } | |
665 | if (get_user(p, &up->controls)) | |
666 | return -EFAULT; | |
667 | ucontrols = compat_ptr(p); | |
52a3082f PO |
668 | if (!access_ok(VERIFY_READ, ucontrols, |
669 | n * sizeof(struct v4l2_ext_control32))) | |
92f45bad HV |
670 | return -EFAULT; |
671 | kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control)); | |
8ae632b1 | 672 | kp->controls = (__force struct v4l2_ext_control *)kcontrols; |
92f45bad | 673 | while (--n >= 0) { |
8ae632b1 HV |
674 | u32 id; |
675 | ||
52a3082f | 676 | if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols))) |
92f45bad | 677 | return -EFAULT; |
8ae632b1 HV |
678 | if (get_user(id, &kcontrols->id)) |
679 | return -EFAULT; | |
680 | if (ctrl_is_pointer(id)) { | |
6b5a9492 HV |
681 | void __user *s; |
682 | ||
683 | if (get_user(p, &ucontrols->string)) | |
684 | return -EFAULT; | |
685 | s = compat_ptr(p); | |
686 | if (put_user(s, &kcontrols->string)) | |
687 | return -EFAULT; | |
688 | } | |
92f45bad HV |
689 | ucontrols++; |
690 | kcontrols++; | |
691 | } | |
eb4eeccc MCC |
692 | return 0; |
693 | } | |
694 | ||
92f45bad | 695 | static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up) |
0d0fbf81 | 696 | { |
6b5a9492 | 697 | struct v4l2_ext_control32 __user *ucontrols; |
8ae632b1 HV |
698 | struct v4l2_ext_control __user *kcontrols = |
699 | (__force struct v4l2_ext_control __user *)kp->controls; | |
92f45bad HV |
700 | int n = kp->count; |
701 | compat_caddr_t p; | |
702 | ||
703 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) || | |
704 | put_user(kp->ctrl_class, &up->ctrl_class) || | |
705 | put_user(kp->count, &up->count) || | |
706 | put_user(kp->error_idx, &up->error_idx) || | |
707 | copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved))) | |
708 | return -EFAULT; | |
709 | if (!kp->count) | |
710 | return 0; | |
a113bc78 | 711 | |
92f45bad | 712 | if (get_user(p, &up->controls)) |
0d0fbf81 | 713 | return -EFAULT; |
92f45bad | 714 | ucontrols = compat_ptr(p); |
52a3082f PO |
715 | if (!access_ok(VERIFY_WRITE, ucontrols, |
716 | n * sizeof(struct v4l2_ext_control32))) | |
0d0fbf81 AB |
717 | return -EFAULT; |
718 | ||
92f45bad | 719 | while (--n >= 0) { |
6b5a9492 | 720 | unsigned size = sizeof(*ucontrols); |
8ae632b1 | 721 | u32 id; |
6b5a9492 | 722 | |
8ae632b1 HV |
723 | if (get_user(id, &kcontrols->id)) |
724 | return -EFAULT; | |
6b5a9492 HV |
725 | /* Do not modify the pointer when copying a pointer control. |
726 | The contents of the pointer was changed, not the pointer | |
727 | itself. */ | |
8ae632b1 | 728 | if (ctrl_is_pointer(id)) |
6b5a9492 HV |
729 | size -= sizeof(ucontrols->value64); |
730 | if (copy_in_user(ucontrols, kcontrols, size)) | |
92f45bad HV |
731 | return -EFAULT; |
732 | ucontrols++; | |
733 | kcontrols++; | |
0d0fbf81 | 734 | } |
92f45bad | 735 | return 0; |
0d0fbf81 | 736 | } |
92f45bad | 737 | |
2330fb82 HV |
738 | struct v4l2_event32 { |
739 | __u32 type; | |
740 | union { | |
741 | __u8 data[64]; | |
742 | } u; | |
743 | __u32 pending; | |
744 | __u32 sequence; | |
745 | struct compat_timespec timestamp; | |
746 | __u32 id; | |
747 | __u32 reserved[8]; | |
748 | }; | |
749 | ||
750 | static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up) | |
751 | { | |
752 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) || | |
753 | put_user(kp->type, &up->type) || | |
754 | copy_to_user(&up->u, &kp->u, sizeof(kp->u)) || | |
755 | put_user(kp->pending, &up->pending) || | |
756 | put_user(kp->sequence, &up->sequence) || | |
81993e81 | 757 | compat_put_timespec(&kp->timestamp, &up->timestamp) || |
2330fb82 HV |
758 | put_user(kp->id, &up->id) || |
759 | copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32))) | |
760 | return -EFAULT; | |
761 | return 0; | |
762 | } | |
763 | ||
dd519bb3 | 764 | struct v4l2_edid32 { |
ed45ce2c HV |
765 | __u32 pad; |
766 | __u32 start_block; | |
767 | __u32 blocks; | |
768 | __u32 reserved[5]; | |
769 | compat_caddr_t edid; | |
770 | }; | |
771 | ||
dd519bb3 | 772 | static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up) |
ed45ce2c HV |
773 | { |
774 | u32 tmp; | |
775 | ||
dd519bb3 | 776 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) || |
ed45ce2c HV |
777 | get_user(kp->pad, &up->pad) || |
778 | get_user(kp->start_block, &up->start_block) || | |
779 | get_user(kp->blocks, &up->blocks) || | |
780 | get_user(tmp, &up->edid) || | |
781 | copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved))) | |
782 | return -EFAULT; | |
8ae632b1 | 783 | kp->edid = (__force u8 *)compat_ptr(tmp); |
ed45ce2c HV |
784 | return 0; |
785 | } | |
786 | ||
dd519bb3 | 787 | static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up) |
ed45ce2c HV |
788 | { |
789 | u32 tmp = (u32)((unsigned long)kp->edid); | |
790 | ||
dd519bb3 | 791 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) || |
ed45ce2c HV |
792 | put_user(kp->pad, &up->pad) || |
793 | put_user(kp->start_block, &up->start_block) || | |
794 | put_user(kp->blocks, &up->blocks) || | |
795 | put_user(tmp, &up->edid) || | |
8ae632b1 | 796 | copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved))) |
ed45ce2c HV |
797 | return -EFAULT; |
798 | return 0; | |
799 | } | |
800 | ||
801 | ||
92f45bad HV |
802 | #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32) |
803 | #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32) | |
804 | #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32) | |
805 | #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32) | |
806 | #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32) | |
807 | #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32) | |
808 | #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32) | |
809 | #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32) | |
810 | #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32) | |
dd519bb3 HV |
811 | #define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32) |
812 | #define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32) | |
92f45bad HV |
813 | #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32) |
814 | #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32) | |
815 | #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32) | |
816 | #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32) | |
2330fb82 | 817 | #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32) |
2150158b GL |
818 | #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32) |
819 | #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32) | |
92f45bad HV |
820 | |
821 | #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32) | |
92f45bad HV |
822 | #define VIDIOC_STREAMON32 _IOW ('V', 18, s32) |
823 | #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32) | |
824 | #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32) | |
825 | #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32) | |
826 | #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32) | |
827 | #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32) | |
0d0fbf81 | 828 | |
069b7479 | 829 | static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
0d0fbf81 AB |
830 | { |
831 | union { | |
cf664a64 PDM |
832 | struct v4l2_format v2f; |
833 | struct v4l2_buffer v2b; | |
834 | struct v4l2_framebuffer v2fb; | |
a113bc78 | 835 | struct v4l2_input v2i; |
92f45bad HV |
836 | struct v4l2_standard v2s; |
837 | struct v4l2_ext_controls v2ecs; | |
2330fb82 | 838 | struct v4l2_event v2ev; |
2150158b | 839 | struct v4l2_create_buffers v2crt; |
dd519bb3 | 840 | struct v4l2_edid v2edid; |
0d0fbf81 | 841 | unsigned long vx; |
92f45bad | 842 | int vi; |
0d0fbf81 | 843 | } karg; |
0d0fbf81 | 844 | void __user *up = compat_ptr(arg); |
cf664a64 | 845 | int compatible_arg = 1; |
069b7479 | 846 | long err = 0; |
0d0fbf81 AB |
847 | |
848 | /* First, convert the command. */ | |
d1f81da2 | 849 | switch (cmd) { |
92f45bad HV |
850 | case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break; |
851 | case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break; | |
852 | case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break; | |
853 | case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break; | |
854 | case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break; | |
855 | case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break; | |
856 | case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break; | |
857 | case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break; | |
858 | case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break; | |
859 | case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break; | |
860 | case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break; | |
861 | case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break; | |
862 | case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break; | |
2330fb82 | 863 | case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break; |
92f45bad | 864 | case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break; |
92f45bad HV |
865 | case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break; |
866 | case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break; | |
867 | case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break; | |
868 | case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break; | |
869 | case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break; | |
870 | case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break; | |
2150158b GL |
871 | case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break; |
872 | case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break; | |
dd519bb3 HV |
873 | case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break; |
874 | case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break; | |
92f45bad | 875 | } |
0d0fbf81 | 876 | |
d1f81da2 | 877 | switch (cmd) { |
cf664a64 | 878 | case VIDIOC_OVERLAY: |
13d133bc PDM |
879 | case VIDIOC_STREAMON: |
880 | case VIDIOC_STREAMOFF: | |
92f45bad HV |
881 | case VIDIOC_S_INPUT: |
882 | case VIDIOC_S_OUTPUT: | |
883 | err = get_user(karg.vi, (s32 __user *)up); | |
884 | compatible_arg = 0; | |
0d0fbf81 | 885 | break; |
13d133bc | 886 | |
92f45bad HV |
887 | case VIDIOC_G_INPUT: |
888 | case VIDIOC_G_OUTPUT: | |
13d133bc PDM |
889 | compatible_arg = 0; |
890 | break; | |
cf664a64 | 891 | |
dd519bb3 HV |
892 | case VIDIOC_G_EDID: |
893 | case VIDIOC_S_EDID: | |
894 | err = get_v4l2_edid32(&karg.v2edid, up); | |
ed45ce2c HV |
895 | compatible_arg = 0; |
896 | break; | |
897 | ||
cf664a64 PDM |
898 | case VIDIOC_G_FMT: |
899 | case VIDIOC_S_FMT: | |
900 | case VIDIOC_TRY_FMT: | |
901 | err = get_v4l2_format32(&karg.v2f, up); | |
902 | compatible_arg = 0; | |
903 | break; | |
904 | ||
2150158b GL |
905 | case VIDIOC_CREATE_BUFS: |
906 | err = get_v4l2_create32(&karg.v2crt, up); | |
907 | compatible_arg = 0; | |
908 | break; | |
909 | ||
910 | case VIDIOC_PREPARE_BUF: | |
cf664a64 PDM |
911 | case VIDIOC_QUERYBUF: |
912 | case VIDIOC_QBUF: | |
913 | case VIDIOC_DQBUF: | |
914 | err = get_v4l2_buffer32(&karg.v2b, up); | |
915 | compatible_arg = 0; | |
916 | break; | |
917 | ||
92f45bad HV |
918 | case VIDIOC_S_FBUF: |
919 | err = get_v4l2_framebuffer32(&karg.v2fb, up); | |
a113bc78 GM |
920 | compatible_arg = 0; |
921 | break; | |
922 | ||
92f45bad | 923 | case VIDIOC_G_FBUF: |
cf664a64 PDM |
924 | compatible_arg = 0; |
925 | break; | |
926 | ||
92f45bad HV |
927 | case VIDIOC_ENUMSTD: |
928 | err = get_v4l2_standard32(&karg.v2s, up); | |
a113bc78 GM |
929 | compatible_arg = 0; |
930 | break; | |
931 | ||
92f45bad | 932 | case VIDIOC_ENUMINPUT: |
a113bc78 GM |
933 | err = get_v4l2_input32(&karg.v2i, up); |
934 | compatible_arg = 0; | |
935 | break; | |
936 | ||
92f45bad HV |
937 | case VIDIOC_G_EXT_CTRLS: |
938 | case VIDIOC_S_EXT_CTRLS: | |
939 | case VIDIOC_TRY_EXT_CTRLS: | |
940 | err = get_v4l2_ext_controls32(&karg.v2ecs, up); | |
a113bc78 GM |
941 | compatible_arg = 0; |
942 | break; | |
2330fb82 HV |
943 | case VIDIOC_DQEVENT: |
944 | compatible_arg = 0; | |
945 | break; | |
92f45bad | 946 | } |
d1f81da2 | 947 | if (err) |
92f45bad | 948 | return err; |
0d0fbf81 | 949 | |
d1f81da2 | 950 | if (compatible_arg) |
92f45bad | 951 | err = native_ioctl(file, cmd, (unsigned long)up); |
cf664a64 PDM |
952 | else { |
953 | mm_segment_t old_fs = get_fs(); | |
0d0fbf81 | 954 | |
cf664a64 | 955 | set_fs(KERNEL_DS); |
92f45bad | 956 | err = native_ioctl(file, cmd, (unsigned long)&karg); |
cf664a64 PDM |
957 | set_fs(old_fs); |
958 | } | |
92f45bad HV |
959 | |
960 | /* Special case: even after an error we need to put the | |
961 | results back for these ioctls since the error_idx will | |
962 | contain information on which control failed. */ | |
963 | switch (cmd) { | |
964 | case VIDIOC_G_EXT_CTRLS: | |
965 | case VIDIOC_S_EXT_CTRLS: | |
966 | case VIDIOC_TRY_EXT_CTRLS: | |
967 | if (put_v4l2_ext_controls32(&karg.v2ecs, up)) | |
968 | err = -EFAULT; | |
969 | break; | |
970 | } | |
971 | if (err) | |
972 | return err; | |
973 | ||
974 | switch (cmd) { | |
92f45bad HV |
975 | case VIDIOC_S_INPUT: |
976 | case VIDIOC_S_OUTPUT: | |
977 | case VIDIOC_G_INPUT: | |
978 | case VIDIOC_G_OUTPUT: | |
979 | err = put_user(((s32)karg.vi), (s32 __user *)up); | |
980 | break; | |
a113bc78 | 981 | |
92f45bad HV |
982 | case VIDIOC_G_FBUF: |
983 | err = put_v4l2_framebuffer32(&karg.v2fb, up); | |
984 | break; | |
985 | ||
2330fb82 HV |
986 | case VIDIOC_DQEVENT: |
987 | err = put_v4l2_event32(&karg.v2ev, up); | |
988 | break; | |
989 | ||
dd519bb3 HV |
990 | case VIDIOC_G_EDID: |
991 | case VIDIOC_S_EDID: | |
992 | err = put_v4l2_edid32(&karg.v2edid, up); | |
ed45ce2c HV |
993 | break; |
994 | ||
92f45bad HV |
995 | case VIDIOC_G_FMT: |
996 | case VIDIOC_S_FMT: | |
997 | case VIDIOC_TRY_FMT: | |
998 | err = put_v4l2_format32(&karg.v2f, up); | |
999 | break; | |
1000 | ||
2150158b GL |
1001 | case VIDIOC_CREATE_BUFS: |
1002 | err = put_v4l2_create32(&karg.v2crt, up); | |
1003 | break; | |
1004 | ||
92f45bad HV |
1005 | case VIDIOC_QUERYBUF: |
1006 | case VIDIOC_QBUF: | |
1007 | case VIDIOC_DQBUF: | |
1008 | err = put_v4l2_buffer32(&karg.v2b, up); | |
1009 | break; | |
1010 | ||
1011 | case VIDIOC_ENUMSTD: | |
1012 | err = put_v4l2_standard32(&karg.v2s, up); | |
1013 | break; | |
1014 | ||
1015 | case VIDIOC_ENUMINPUT: | |
1016 | err = put_v4l2_input32(&karg.v2i, up); | |
1017 | break; | |
0d0fbf81 | 1018 | } |
0d0fbf81 AB |
1019 | return err; |
1020 | } | |
1021 | ||
9bb7cde7 | 1022 | long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) |
0d0fbf81 | 1023 | { |
b9d0aa6e | 1024 | struct video_device *vdev = video_devdata(file); |
069b7479 | 1025 | long ret = -ENOIOCTLCMD; |
0d0fbf81 | 1026 | |
c6d7ba8b | 1027 | if (!file->f_op->unlocked_ioctl) |
0d0fbf81 AB |
1028 | return ret; |
1029 | ||
ab58a301 | 1030 | if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE) |
0d0fbf81 | 1031 | ret = do_video_ioctl(file, cmd, arg); |
ab58a301 HV |
1032 | else if (vdev->fops->compat_ioctl32) |
1033 | ret = vdev->fops->compat_ioctl32(file, cmd, arg); | |
0d0fbf81 | 1034 | |
ab58a301 HV |
1035 | if (ret == -ENOIOCTLCMD) |
1036 | pr_warn("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n", | |
1037 | _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd); | |
e8efb71d | 1038 | return ret; |
0d0fbf81 | 1039 | } |
9bb7cde7 | 1040 | EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32); |