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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [media/] [video/] [compat_ioctl32.c] - Blame information for rev 62

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Line No. Rev Author Line
1 62 marcus.erl 
/*
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
8 
 * Copyright (C) 2003       Pavel Machek (pavel@suse.cz)
9 
 * Copyright (C) 2005       Philippe De Muyter (phdm@macqel.be)
10 
 *
11 
 * These routines maintain argument size conversion between 32bit and 64bit
12 
 * ioctls.
13 
 */
14 
 
15 
#include <linux/compat.h>
16 
#include <linux/videodev.h>
17 
#include <linux/videodev2.h>
18 
#include <linux/module.h>
19 
#include <linux/smp_lock.h>
20 
#include <media/v4l2-common.h>
21 
 
22 
#ifdef CONFIG_COMPAT
23 
 
24 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
25 
struct video_tuner32 {
26 
        compat_int_t tuner;
27 
        char name[32];
28 
        compat_ulong_t rangelow, rangehigh;
29 
        u32 flags;      /* It is really u32 in videodev.h */
30 
        u16 mode, signal;
31 
};
32 
 
33 
static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
34 
{
35 
        if(!access_ok(VERIFY_READ, up, sizeof(struct video_tuner32)) ||
36 
                get_user(kp->tuner, &up->tuner) ||
37 
                copy_from_user(kp->name, up->name, 32) ||
38 
                get_user(kp->rangelow, &up->rangelow) ||
39 
                get_user(kp->rangehigh, &up->rangehigh) ||
40 
                get_user(kp->flags, &up->flags) ||
41 
                get_user(kp->mode, &up->mode) ||
42 
                get_user(kp->signal, &up->signal))
43 
                return -EFAULT;
44 
        return 0;
45 
}
46 
 
47 
static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
48 
{
49 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_tuner32)) ||
50 
                put_user(kp->tuner, &up->tuner) ||
51 
                copy_to_user(up->name, kp->name, 32) ||
52 
                put_user(kp->rangelow, &up->rangelow) ||
53 
                put_user(kp->rangehigh, &up->rangehigh) ||
54 
                put_user(kp->flags, &up->flags) ||
55 
                put_user(kp->mode, &up->mode) ||
56 
                put_user(kp->signal, &up->signal))
57 
                        return -EFAULT;
58 
        return 0;
59 
}
60 
 
61 
 
62 
struct video_buffer32 {
63 
        compat_caddr_t base;
64 
        compat_int_t height, width, depth, bytesperline;
65 
};
66 
 
67 
static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
68 
{
69 
        u32 tmp;
70 
 
71 
        if (!access_ok(VERIFY_READ, up, sizeof(struct video_buffer32)) ||
72 
                get_user(tmp, &up->base) ||
73 
                get_user(kp->height, &up->height) ||
74 
                get_user(kp->width, &up->width) ||
75 
                get_user(kp->depth, &up->depth) ||
76 
                get_user(kp->bytesperline, &up->bytesperline))
77 
                        return -EFAULT;
78 
 
79 
        /* This is actually a physical address stored
80 
         * as a void pointer.
81 
         */
82 
        kp->base = (void *)(unsigned long) tmp;
83 
 
84 
        return 0;
85 
}
86 
 
87 
static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
88 
{
89 
        u32 tmp = (u32)((unsigned long)kp->base);
90 
 
91 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_buffer32)) ||
92 
                put_user(tmp, &up->base) ||
93 
                put_user(kp->height, &up->height) ||
94 
                put_user(kp->width, &up->width) ||
95 
                put_user(kp->depth, &up->depth) ||
96 
                put_user(kp->bytesperline, &up->bytesperline))
97 
                        return -EFAULT;
98 
        return 0;
99 
}
100 
 
101 
struct video_clip32 {
102 
        s32 x, y, width, height;        /* Its really s32 in videodev.h */
103 
        compat_caddr_t next;
104 
};
105 
 
106 
struct video_window32 {
107 
        u32 x, y, width, height, chromakey, flags;
108 
        compat_caddr_t clips;
109 
        compat_int_t clipcount;
110 
};
111 
#endif
112 
 
113 
static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
114 
{
115 
        int ret = -ENOIOCTLCMD;
116 
 
117 
        if (file->f_op->unlocked_ioctl)
118 
                ret = file->f_op->unlocked_ioctl(file, cmd, arg);
119 
        else if (file->f_op->ioctl) {
120 
                lock_kernel();
121 
                ret = file->f_op->ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
122 
                unlock_kernel();
123 
        }
124 
 
125 
        return ret;
126 
}
127 
 
128 
 
129 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
130 
/* You get back everything except the clips... */
131 
static int put_video_window32(struct video_window *kp, struct video_window32 __user *up)
132 
{
133 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_window32)) ||
134 
                put_user(kp->x, &up->x) ||
135 
                put_user(kp->y, &up->y) ||
136 
                put_user(kp->width, &up->width) ||
137 
                put_user(kp->height, &up->height) ||
138 
                put_user(kp->chromakey, &up->chromakey) ||
139 
                put_user(kp->flags, &up->flags) ||
140 
                put_user(kp->clipcount, &up->clipcount))
141 
                        return -EFAULT;
142 
        return 0;
143 
}
144 
#endif
145 
 
146 
struct v4l2_clip32
147 
{
148 
        struct v4l2_rect        c;
149 
        compat_caddr_t          next;
150 
};
151 
 
152 
struct v4l2_window32
153 
{
154 
        struct v4l2_rect        w;
155 
        enum v4l2_field         field;
156 
        __u32                   chromakey;
157 
        compat_caddr_t          clips; /* actually struct v4l2_clip32 * */
158 
        __u32                   clipcount;
159 
        compat_caddr_t          bitmap;
160 
};
161 
 
162 
static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
163 
{
164 
        if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) ||
165 
                copy_from_user(&kp->w, &up->w, sizeof(up->w)) ||
166 
                get_user(kp->field, &up->field) ||
167 
                get_user(kp->chromakey, &up->chromakey) ||
168 
                get_user(kp->clipcount, &up->clipcount))
169 
                        return -EFAULT;
170 
        if (kp->clipcount > 2048)
171 
                return -EINVAL;
172 
        if (kp->clipcount) {
173 
                struct v4l2_clip32 __user *uclips;
174 
                struct v4l2_clip __user *kclips;
175 
                int n = kp->clipcount;
176 
                compat_caddr_t p;
177 
 
178 
                if (get_user(p, &up->clips))
179 
                        return -EFAULT;
180 
                uclips = compat_ptr(p);
181 
                kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip));
182 
                kp->clips = kclips;
183 
                while (--n >= 0) {
184 
                        if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c)))
185 
                                return -EFAULT;
186 
                        if (put_user(n ? kclips + 1 : NULL, &kclips->next))
187 
                                return -EFAULT;
188 
                        uclips += 1;
189 
                        kclips += 1;
190 
                }
191 
        } else
192 
                kp->clips = NULL;
193 
        return 0;
194 
}
195 
 
196 
static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
197 
{
198 
        if (copy_to_user(&up->w, &kp->w, sizeof(up->w)) ||
199 
                put_user(kp->field, &up->field) ||
200 
                put_user(kp->chromakey, &up->chromakey) ||
201 
                put_user(kp->clipcount, &up->clipcount))
202 
                        return -EFAULT;
203 
        return 0;
204 
}
205 
 
206 
static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
207 
{
208 
        if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format)))
209 
                return -EFAULT;
210 
        return 0;
211 
}
212 
 
213 
static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
214 
{
215 
        if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format)))
216 
                return -EFAULT;
217 
        return 0;
218 
}
219 
 
220 
static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
221 
{
222 
        if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format)))
223 
                return -EFAULT;
224 
        return 0;
225 
}
226 
 
227 
static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
228 
{
229 
        if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format)))
230 
                return -EFAULT;
231 
        return 0;
232 
}
233 
 
234 
struct v4l2_format32
235 
{
236 
        enum v4l2_buf_type type;
237 
        union
238 
        {
239 
                struct v4l2_pix_format  pix;  // V4L2_BUF_TYPE_VIDEO_CAPTURE
240 
                struct v4l2_window32    win;  // V4L2_BUF_TYPE_VIDEO_OVERLAY
241 
                struct v4l2_vbi_format  vbi;  // V4L2_BUF_TYPE_VBI_CAPTURE
242 
                __u8    raw_data[200];        // user-defined
243 
        } fmt;
244 
};
245 
 
246 
static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
247 
{
248 
        if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) ||
249 
                        get_user(kp->type, &up->type))
250 
                        return -EFAULT;
251 
        switch (kp->type) {
252 
        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
253 
                return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
254 
        case V4L2_BUF_TYPE_VIDEO_OVERLAY:
255 
                return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
256 
        case V4L2_BUF_TYPE_VBI_CAPTURE:
257 
                return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
258 
        default:
259 
                printk("compat_ioctl : unexpected VIDIOC_FMT type %d\n",
260 
                                                                kp->type);
261 
                return -ENXIO;
262 
        }
263 
}
264 
 
265 
static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
266 
{
267 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) ||
268 
                put_user(kp->type, &up->type))
269 
                return -EFAULT;
270 
        switch (kp->type) {
271 
        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
272 
                return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
273 
        case V4L2_BUF_TYPE_VIDEO_OVERLAY:
274 
                return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
275 
        case V4L2_BUF_TYPE_VBI_CAPTURE:
276 
                return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
277 
        default:
278 
                return -ENXIO;
279 
        }
280 
}
281 
 
282 
static inline int get_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up)
283 
{
284 
        if (copy_from_user(kp, up, sizeof(struct v4l2_standard)))
285 
                return -EFAULT;
286 
        return 0;
287 
 
288 
}
289 
 
290 
static inline int put_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up)
291 
{
292 
        if (copy_to_user(up, kp, sizeof(struct v4l2_standard)))
293 
                return -EFAULT;
294 
        return 0;
295 
}
296 
 
297 
struct v4l2_standard32
298 
{
299 
        __u32                index;
300 
        __u32                id[2]; /* __u64 would get the alignment wrong */
301 
        __u8                 name[24];
302 
        struct v4l2_fract    frameperiod; /* Frames, not fields */
303 
        __u32                framelines;
304 
        __u32                reserved[4];
305 
};
306 
 
307 
static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
308 
{
309 
        /* other fields are not set by the user, nor used by the driver */
310 
        if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
311 
                get_user(kp->index, &up->index))
312 
                return -EFAULT;
313 
        return 0;
314 
}
315 
 
316 
static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
317 
{
318 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
319 
                put_user(kp->index, &up->index) ||
320 
                copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
321 
                copy_to_user(up->name, kp->name, 24) ||
322 
                copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
323 
                put_user(kp->framelines, &up->framelines) ||
324 
                copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
325 
                        return -EFAULT;
326 
        return 0;
327 
}
328 
 
329 
static inline int get_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up)
330 
{
331 
        if (copy_from_user(kp, up, sizeof(struct v4l2_tuner)))
332 
                return -EFAULT;
333 
        return 0;
334 
 
335 
}
336 
 
337 
static inline int put_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up)
338 
{
339 
        if (copy_to_user(up, kp, sizeof(struct v4l2_tuner)))
340 
                return -EFAULT;
341 
        return 0;
342 
}
343 
 
344 
struct v4l2_buffer32
345 
{
346 
        __u32                   index;
347 
        enum v4l2_buf_type      type;
348 
        __u32                   bytesused;
349 
        __u32                   flags;
350 
        enum v4l2_field         field;
351 
        struct compat_timeval   timestamp;
352 
        struct v4l2_timecode    timecode;
353 
        __u32                   sequence;
354 
 
355 
        /* memory location */
356 
        enum v4l2_memory        memory;
357 
        union {
358 
                __u32           offset;
359 
                compat_long_t   userptr;
360 
        } m;
361 
        __u32                   length;
362 
        __u32                   input;
363 
        __u32                   reserved;
364 
};
365 
 
366 
static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
367 
{
368 
 
369 
        if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
370 
                get_user(kp->index, &up->index) ||
371 
                get_user(kp->type, &up->type) ||
372 
                get_user(kp->flags, &up->flags) ||
373 
                get_user(kp->memory, &up->memory) ||
374 
                get_user(kp->input, &up->input))
375 
                        return -EFAULT;
376 
        switch(kp->memory) {
377 
        case V4L2_MEMORY_MMAP:
378 
                break;
379 
        case V4L2_MEMORY_USERPTR:
380 
                {
381 
                compat_long_t tmp;
382 
 
383 
                if (get_user(kp->length, &up->length) ||
384 
                    get_user(tmp, &up->m.userptr))
385 
                        return -EFAULT;
386 
 
387 
                kp->m.userptr = (unsigned long)compat_ptr(tmp);
388 
                }
389 
                break;
390 
        case V4L2_MEMORY_OVERLAY:
391 
                if(get_user(kp->m.offset, &up->m.offset))
392 
                        return -EFAULT;
393 
                break;
394 
        }
395 
        return 0;
396 
}
397 
 
398 
static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
399 
{
400 
        if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
401 
                put_user(kp->index, &up->index) ||
402 
                put_user(kp->type, &up->type) ||
403 
                put_user(kp->flags, &up->flags) ||
404 
                put_user(kp->memory, &up->memory) ||
405 
                put_user(kp->input, &up->input))
406 
                        return -EFAULT;
407 
        switch(kp->memory) {
408 
        case V4L2_MEMORY_MMAP:
409 
                if (put_user(kp->length, &up->length) ||
410 
                        put_user(kp->m.offset, &up->m.offset))
411 
                        return -EFAULT;
412 
                break;
413 
        case V4L2_MEMORY_USERPTR:
414 
                if (put_user(kp->length, &up->length) ||
415 
                        put_user(kp->m.userptr, &up->m.userptr))
416 
                        return -EFAULT;
417 
                break;
418 
        case V4L2_MEMORY_OVERLAY:
419 
                if (put_user(kp->m.offset, &up->m.offset))
420 
                        return -EFAULT;
421 
                break;
422 
        }
423 
        if (put_user(kp->bytesused, &up->bytesused) ||
424 
                put_user(kp->field, &up->field) ||
425 
                put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
426 
                put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
427 
                copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
428 
                put_user(kp->sequence, &up->sequence) ||
429 
                put_user(kp->reserved, &up->reserved))
430 
                        return -EFAULT;
431 
        return 0;
432 
}
433 
 
434 
struct v4l2_framebuffer32
435 
{
436 
        __u32                   capability;
437 
        __u32                   flags;
438 
        compat_caddr_t          base;
439 
        struct v4l2_pix_format  fmt;
440 
};
441 
 
442 
static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
443 
{
444 
        u32 tmp;
445 
 
446 
        if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
447 
                get_user(tmp, &up->base) ||
448 
                get_user(kp->capability, &up->capability) ||
449 
                get_user(kp->flags, &up->flags))
450 
                        return -EFAULT;
451 
        kp->base = compat_ptr(tmp);
452 
        get_v4l2_pix_format(&kp->fmt, &up->fmt);
453 
        return 0;
454 
}
455 
 
456 
static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
457 
{
458 
        u32 tmp = (u32)((unsigned long)kp->base);
459 
 
460 
        if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
461 
                put_user(tmp, &up->base) ||
462 
                put_user(kp->capability, &up->capability) ||
463 
                put_user(kp->flags, &up->flags))
464 
                        return -EFAULT;
465 
        put_v4l2_pix_format(&kp->fmt, &up->fmt);
466 
        return 0;
467 
}
468 
 
469 
static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up)
470 
{
471 
        if (copy_from_user(kp, up, sizeof(struct v4l2_input) - 4))
472 
                return -EFAULT;
473 
        return 0;
474 
}
475 
 
476 
static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up)
477 
{
478 
        if (copy_to_user(up, kp, sizeof(struct v4l2_input) - 4))
479 
                return -EFAULT;
480 
        return 0;
481 
}
482 
 
483 
static inline int get_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up)
484 
{
485 
        if (copy_from_user(kp, up, sizeof(struct v4l2_input)))
486 
                return -EFAULT;
487 
        return 0;
488 
}
489 
 
490 
static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up)
491 
{
492 
        if (copy_to_user(up, kp, sizeof(struct v4l2_input)))
493 
                return -EFAULT;
494 
        return 0;
495 
}
496 
 
497 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
498 
struct video_code32
499 
{
500 
        char            loadwhat[16];   /* name or tag of file being passed */
501 
        compat_int_t    datasize;
502 
        unsigned char   *data;
503 
};
504 
 
505 
static inline int microcode32(struct video_code *kp, struct video_code32 __user *up)
506 
{
507 
        if(!access_ok(VERIFY_READ, up, sizeof(struct video_code32)) ||
508 
                copy_from_user(kp->loadwhat, up->loadwhat, sizeof (up->loadwhat)) ||
509 
                get_user(kp->datasize, &up->datasize) ||
510 
                copy_from_user(kp->data, up->data, up->datasize))
511 
                        return -EFAULT;
512 
        return 0;
513 
}
514 
 
515 
#define VIDIOCGTUNER32          _IOWR('v',4, struct video_tuner32)
516 
#define VIDIOCSTUNER32          _IOW('v',5, struct video_tuner32)
517 
#define VIDIOCGWIN32            _IOR('v',9, struct video_window32)
518 
#define VIDIOCSWIN32            _IOW('v',10, struct video_window32)
519 
#define VIDIOCGFBUF32           _IOR('v',11, struct video_buffer32)
520 
#define VIDIOCSFBUF32           _IOW('v',12, struct video_buffer32)
521 
#define VIDIOCGFREQ32           _IOR('v',14, u32)
522 
#define VIDIOCSFREQ32           _IOW('v',15, u32)
523 
#define VIDIOCSMICROCODE32      _IOW('v',27, struct video_code32)
524 
 
525 
#endif
526 
 
527 
/* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */
528 
#define VIDIOC_ENUMINPUT32      VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4)
529 
#define VIDIOC_G_FMT32          _IOWR ('V',  4, struct v4l2_format32)
530 
#define VIDIOC_S_FMT32          _IOWR ('V',  5, struct v4l2_format32)
531 
#define VIDIOC_QUERYBUF32       _IOWR ('V',  9, struct v4l2_buffer32)
532 
#define VIDIOC_G_FBUF32         _IOR  ('V', 10, struct v4l2_framebuffer32)
533 
#define VIDIOC_S_FBUF32         _IOW  ('V', 11, struct v4l2_framebuffer32)
534 
/* VIDIOC_OVERLAY is now _IOW, but was _IOWR */
535 
#define VIDIOC_OVERLAY32        _IOWR ('V', 14, compat_int_t)
536 
#define VIDIOC_QBUF32           _IOWR ('V', 15, struct v4l2_buffer32)
537 
#define VIDIOC_DQBUF32          _IOWR ('V', 17, struct v4l2_buffer32)
538 
#define VIDIOC_STREAMON32       _IOW  ('V', 18, compat_int_t)
539 
#define VIDIOC_STREAMOFF32      _IOW  ('V', 19, compat_int_t)
540 
#define VIDIOC_ENUMSTD32        _IOWR ('V', 25, struct v4l2_standard32)
541 
/* VIDIOC_S_CTRL is now _IOWR, but was _IOW */
542 
#define VIDIOC_S_CTRL32         _IOW  ('V', 28, struct v4l2_control)
543 
#define VIDIOC_G_INPUT32        _IOR  ('V', 38, compat_int_t)
544 
#define VIDIOC_S_INPUT32        _IOWR ('V', 39, compat_int_t)
545 
#define VIDIOC_TRY_FMT32        _IOWR ('V', 64, struct v4l2_format32)
546 
 
547 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
548 
enum {
549 
        MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip)
550 
};
551 
 
552 
static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg)
553 
{
554 
        struct video_window32 __user *up = compat_ptr(arg);
555 
        struct video_window __user *vw;
556 
        struct video_clip __user *p;
557 
        int nclips;
558 
        u32 n;
559 
 
560 
        if (!access_ok(VERIFY_READ, up, sizeof(struct video_window32)))
561 
                return -EFAULT;
562 
 
563 
        if (get_user(nclips, &up->clipcount))
564 
                return -EFAULT;
565 
 
566 
        /* Peculiar interface... */
567 
        if (nclips < 0)
568 
                nclips = VIDEO_CLIPMAP_SIZE;
569 
 
570 
        if (nclips > MaxClips)
571 
                return -ENOMEM;
572 
 
573 
        vw = compat_alloc_user_space(sizeof(struct video_window) +
574 
                                    nclips * sizeof(struct video_clip));
575 
 
576 
        p = nclips ? (struct video_clip __user *)(vw + 1) : NULL;
577 
 
578 
        if (get_user(n, &up->x) || put_user(n, &vw->x) ||
579 
            get_user(n, &up->y) || put_user(n, &vw->y) ||
580 
            get_user(n, &up->width) || put_user(n, &vw->width) ||
581 
            get_user(n, &up->height) || put_user(n, &vw->height) ||
582 
            get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) ||
583 
            get_user(n, &up->flags) || put_user(n, &vw->flags) ||
584 
            get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) ||
585 
            get_user(n, &up->clips) || put_user(p, &vw->clips))
586 
                return -EFAULT;
587 
 
588 
        if (nclips) {
589 
                struct video_clip32 __user *u = compat_ptr(n);
590 
                int i;
591 
                if (!u)
592 
                        return -EINVAL;
593 
                for (i = 0; i < nclips; i++, u++, p++) {
594 
                        s32 v;
595 
                        if (!access_ok(VERIFY_READ, u, sizeof(struct video_clip32)) ||
596 
                            !access_ok(VERIFY_WRITE, p, sizeof(struct video_clip32)) ||
597 
                            get_user(v, &u->x) ||
598 
                            put_user(v, &p->x) ||
599 
                            get_user(v, &u->y) ||
600 
                            put_user(v, &p->y) ||
601 
                            get_user(v, &u->width) ||
602 
                            put_user(v, &p->width) ||
603 
                            get_user(v, &u->height) ||
604 
                            put_user(v, &p->height) ||
605 
                            put_user(NULL, &p->next))
606 
                                return -EFAULT;
607 
                }
608 
        }
609 
 
610 
        return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw);
611 
}
612 
#endif
613 
 
614 
static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
615 
{
616 
        union {
617 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
618 
                struct video_tuner vt;
619 
                struct video_buffer vb;
620 
                struct video_window vw;
621 
                struct video_code vc;
622 
                struct video_audio va;
623 
#endif
624 
                struct v4l2_format v2f;
625 
                struct v4l2_buffer v2b;
626 
                struct v4l2_framebuffer v2fb;
627 
                struct v4l2_standard v2s;
628 
                struct v4l2_input v2i;
629 
                struct v4l2_tuner v2t;
630 
                unsigned long vx;
631 
        } karg;
632 
        void __user *up = compat_ptr(arg);
633 
        int compatible_arg = 1;
634 
        int err = 0;
635 
        int realcmd = cmd;
636 
 
637 
        /* First, convert the command. */
638 
        switch(cmd) {
639 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
640 
        case VIDIOCGTUNER32: realcmd = cmd = VIDIOCGTUNER; break;
641 
        case VIDIOCSTUNER32: realcmd = cmd = VIDIOCSTUNER; break;
642 
        case VIDIOCGWIN32: realcmd = cmd = VIDIOCGWIN; break;
643 
        case VIDIOCGFBUF32: realcmd = cmd = VIDIOCGFBUF; break;
644 
        case VIDIOCSFBUF32: realcmd = cmd = VIDIOCSFBUF; break;
645 
        case VIDIOCGFREQ32: realcmd = cmd = VIDIOCGFREQ; break;
646 
        case VIDIOCSFREQ32: realcmd = cmd = VIDIOCSFREQ; break;
647 
        case VIDIOCSMICROCODE32: realcmd = cmd = VIDIOCSMICROCODE; break;
648 
#endif
649 
        case VIDIOC_G_FMT32: realcmd = cmd = VIDIOC_G_FMT; break;
650 
        case VIDIOC_S_FMT32: realcmd = cmd = VIDIOC_S_FMT; break;
651 
        case VIDIOC_QUERYBUF32: realcmd = cmd = VIDIOC_QUERYBUF; break;
652 
        case VIDIOC_QBUF32: realcmd = cmd = VIDIOC_QBUF; break;
653 
        case VIDIOC_DQBUF32: realcmd = cmd = VIDIOC_DQBUF; break;
654 
        case VIDIOC_STREAMON32: realcmd = cmd = VIDIOC_STREAMON; break;
655 
        case VIDIOC_STREAMOFF32: realcmd = cmd = VIDIOC_STREAMOFF; break;
656 
        case VIDIOC_G_FBUF32: realcmd = cmd = VIDIOC_G_FBUF; break;
657 
        case VIDIOC_S_FBUF32: realcmd = cmd = VIDIOC_S_FBUF; break;
658 
        case VIDIOC_OVERLAY32: realcmd = cmd = VIDIOC_OVERLAY; break;
659 
        case VIDIOC_ENUMSTD32: realcmd = VIDIOC_ENUMSTD; break;
660 
        case VIDIOC_ENUMINPUT32: realcmd = VIDIOC_ENUMINPUT; break;
661 
        case VIDIOC_S_CTRL32: realcmd = cmd = VIDIOC_S_CTRL; break;
662 
        case VIDIOC_G_INPUT32: realcmd = cmd = VIDIOC_G_INPUT; break;
663 
        case VIDIOC_S_INPUT32: realcmd = cmd = VIDIOC_S_INPUT; break;
664 
        case VIDIOC_TRY_FMT32: realcmd = cmd = VIDIOC_TRY_FMT; break;
665 
        };
666 
 
667 
        switch(cmd) {
668 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
669 
        case VIDIOCSTUNER:
670 
        case VIDIOCGTUNER:
671 
                err = get_video_tuner32(&karg.vt, up);
672 
                compatible_arg = 0;
673 
 
674 
                break;
675 
 
676 
        case VIDIOCSFBUF:
677 
                err = get_video_buffer32(&karg.vb, up);
678 
                compatible_arg = 0;
679 
                break;
680 
 
681 
 
682 
        case VIDIOCSFREQ:
683 
#endif
684 
        case VIDIOC_S_INPUT:
685 
        case VIDIOC_OVERLAY:
686 
        case VIDIOC_STREAMON:
687 
        case VIDIOC_STREAMOFF:
688 
                err = get_user(karg.vx, (u32 __user *)up);
689 
                compatible_arg = 1;
690 
                break;
691 
 
692 
        case VIDIOC_S_FBUF:
693 
                err = get_v4l2_framebuffer32(&karg.v2fb, up);
694 
                compatible_arg = 0;
695 
                break;
696 
 
697 
        case VIDIOC_G_FMT:
698 
        case VIDIOC_S_FMT:
699 
        case VIDIOC_TRY_FMT:
700 
                err = get_v4l2_format32(&karg.v2f, up);
701 
                compatible_arg = 0;
702 
                break;
703 
 
704 
        case VIDIOC_QUERYBUF:
705 
        case VIDIOC_QBUF:
706 
        case VIDIOC_DQBUF:
707 
                err = get_v4l2_buffer32(&karg.v2b, up);
708 
                compatible_arg = 0;
709 
                break;
710 
 
711 
        case VIDIOC_ENUMSTD:
712 
                err = get_v4l2_standard(&karg.v2s, up);
713 
                compatible_arg = 0;
714 
                break;
715 
 
716 
        case VIDIOC_ENUMSTD32:
717 
                err = get_v4l2_standard32(&karg.v2s, up);
718 
                compatible_arg = 0;
719 
                break;
720 
 
721 
        case VIDIOC_ENUMINPUT:
722 
                err = get_v4l2_input(&karg.v2i, up);
723 
                compatible_arg = 0;
724 
                break;
725 
 
726 
        case VIDIOC_ENUMINPUT32:
727 
                err = get_v4l2_input32(&karg.v2i, up);
728 
                compatible_arg = 0;
729 
                break;
730 
 
731 
        case VIDIOC_G_TUNER:
732 
        case VIDIOC_S_TUNER:
733 
                err = get_v4l2_tuner(&karg.v2t, up);
734 
                compatible_arg = 0;
735 
                break;
736 
 
737 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
738 
        case VIDIOCGWIN:
739 
        case VIDIOCGFBUF:
740 
        case VIDIOCGFREQ:
741 
#endif
742 
        case VIDIOC_G_FBUF:
743 
        case VIDIOC_G_INPUT:
744 
                compatible_arg = 0;
745 
                break;
746 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
747 
        case VIDIOCSMICROCODE:
748 
                err = microcode32(&karg.vc, up);
749 
                compatible_arg = 0;
750 
                break;
751 
#endif
752 
        };
753 
        if(err)
754 
                goto out;
755 
 
756 
        if(compatible_arg)
757 
                err = native_ioctl(file, realcmd, (unsigned long)up);
758 
        else {
759 
                mm_segment_t old_fs = get_fs();
760 
 
761 
                set_fs(KERNEL_DS);
762 
                err = native_ioctl(file, realcmd, (unsigned long) &karg);
763 
                set_fs(old_fs);
764 
        }
765 
        if(err == 0) {
766 
                switch(cmd) {
767 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
768 
                case VIDIOCGTUNER:
769 
                        err = put_video_tuner32(&karg.vt, up);
770 
                        break;
771 
 
772 
                case VIDIOCGWIN:
773 
                        err = put_video_window32(&karg.vw, up);
774 
                        break;
775 
 
776 
                case VIDIOCGFBUF:
777 
                        err = put_video_buffer32(&karg.vb, up);
778 
                        break;
779 
 
780 
#endif
781 
                case VIDIOC_G_FBUF:
782 
                        err = put_v4l2_framebuffer32(&karg.v2fb, up);
783 
                        break;
784 
 
785 
                case VIDIOC_G_FMT:
786 
                case VIDIOC_S_FMT:
787 
                case VIDIOC_TRY_FMT:
788 
                        err = put_v4l2_format32(&karg.v2f, up);
789 
                        break;
790 
 
791 
                case VIDIOC_QUERYBUF:
792 
                case VIDIOC_QBUF:
793 
                case VIDIOC_DQBUF:
794 
                        err = put_v4l2_buffer32(&karg.v2b, up);
795 
                        break;
796 
 
797 
                case VIDIOC_ENUMSTD:
798 
                        err = put_v4l2_standard(&karg.v2s, up);
799 
                        break;
800 
 
801 
                case VIDIOC_ENUMSTD32:
802 
                        err = put_v4l2_standard32(&karg.v2s, up);
803 
                        break;
804 
 
805 
                case VIDIOC_G_TUNER:
806 
                case VIDIOC_S_TUNER:
807 
                        err = put_v4l2_tuner(&karg.v2t, up);
808 
                        break;
809 
 
810 
                case VIDIOC_ENUMINPUT:
811 
                        err = put_v4l2_input(&karg.v2i, up);
812 
                        break;
813 
 
814 
                case VIDIOC_ENUMINPUT32:
815 
                        err = put_v4l2_input32(&karg.v2i, up);
816 
                        break;
817 
 
818 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
819 
                case VIDIOCGFREQ:
820 
#endif
821 
                case VIDIOC_G_INPUT:
822 
                        err = put_user(((u32)karg.vx), (u32 __user *)up);
823 
                        break;
824 
                };
825 
        }
826 
out:
827 
        return err;
828 
}
829 
 
830 
long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
831 
{
832 
        int ret = -ENOIOCTLCMD;
833 
 
834 
        if (!file->f_op->ioctl)
835 
                return ret;
836 
 
837 
        switch (cmd) {
838 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
839 
        case VIDIOCSWIN32:
840 
                ret = do_set_window(file, cmd, arg);
841 
                break;
842 
        case VIDIOCGTUNER32:
843 
        case VIDIOCSTUNER32:
844 
        case VIDIOCGWIN32:
845 
        case VIDIOCGFBUF32:
846 
        case VIDIOCSFBUF32:
847 
        case VIDIOCGFREQ32:
848 
        case VIDIOCSFREQ32:
849 
        case VIDIOCGAUDIO:
850 
        case VIDIOCSAUDIO:
851 
        case VIDIOCGVBIFMT:
852 
        case VIDIOCSVBIFMT:
853 
#endif
854 
        case VIDIOC_QUERYCAP:
855 
        case VIDIOC_ENUM_FMT:
856 
        case VIDIOC_G_FMT32:
857 
        case VIDIOC_CROPCAP:
858 
        case VIDIOC_S_CROP:
859 
        case VIDIOC_S_FMT32:
860 
        case VIDIOC_REQBUFS:
861 
        case VIDIOC_QUERYBUF32:
862 
        case VIDIOC_G_FBUF32:
863 
        case VIDIOC_S_FBUF32:
864 
        case VIDIOC_OVERLAY32:
865 
        case VIDIOC_QBUF32:
866 
        case VIDIOC_DQBUF32:
867 
        case VIDIOC_STREAMON32:
868 
        case VIDIOC_STREAMOFF32:
869 
        case VIDIOC_G_PARM:
870 
        case VIDIOC_G_STD:
871 
        case VIDIOC_S_STD:
872 
        case VIDIOC_G_TUNER:
873 
        case VIDIOC_S_TUNER:
874 
        case VIDIOC_ENUMSTD:
875 
        case VIDIOC_ENUMSTD32:
876 
        case VIDIOC_ENUMINPUT:
877 
        case VIDIOC_ENUMINPUT32:
878 
        case VIDIOC_G_CTRL:
879 
        case VIDIOC_S_CTRL:
880 
        case VIDIOC_S_CTRL32:
881 
        case VIDIOC_S_FREQUENCY:
882 
        case VIDIOC_G_FREQUENCY:
883 
        case VIDIOC_QUERYCTRL:
884 
        case VIDIOC_G_INPUT32:
885 
        case VIDIOC_S_INPUT32:
886 
        case VIDIOC_TRY_FMT32:
887 
                ret = do_video_ioctl(file, cmd, arg);
888 
                break;
889 
 
890 
#ifdef CONFIG_VIDEO_V4L1_COMPAT
891 
        /* Little v, the video4linux ioctls (conflict?) */
892 
        case VIDIOCGCAP:
893 
        case VIDIOCGCHAN:
894 
        case VIDIOCSCHAN:
895 
        case VIDIOCGPICT:
896 
        case VIDIOCSPICT:
897 
        case VIDIOCCAPTURE:
898 
        case VIDIOCKEY:
899 
        case VIDIOCSYNC:
900 
        case VIDIOCMCAPTURE:
901 
        case VIDIOCGMBUF:
902 
        case VIDIOCGUNIT:
903 
        case VIDIOCGCAPTURE:
904 
        case VIDIOCSCAPTURE:
905 
 
906 
        /* BTTV specific... */
907 
        case _IOW('v',  BASE_VIDIOCPRIVATE+0, char [256]):
908 
        case _IOR('v',  BASE_VIDIOCPRIVATE+1, char [256]):
909 
        case _IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int):
910 
        case _IOW('v' , BASE_VIDIOCPRIVATE+3, char [16]): /* struct bttv_pll_info */
911 
        case _IOR('v' , BASE_VIDIOCPRIVATE+4, int):
912 
        case _IOR('v' , BASE_VIDIOCPRIVATE+5, int):
913 
        case _IOR('v' , BASE_VIDIOCPRIVATE+6, int):
914 
        case _IOR('v' , BASE_VIDIOCPRIVATE+7, int):
915 
                ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
916 
                break;
917 
#endif
918 
        default:
919 
                v4l_print_ioctl("compat_ioctl32", cmd);
920 
        }
921 
        return ret;
922 
}
923 
#else
924 
long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
925 
{
926 
        return -ENOIOCTLCMD;
927 
}
928 
#endif
929 
EXPORT_SYMBOL_GPL(v4l_compat_ioctl32);
930 
 
931 
MODULE_LICENSE("GPL");

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