compat_ioctl32.c 19 KB

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  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
  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. #include <linux/config.h>
  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. #ifdef CONFIG_COMPAT
  21. struct video_tuner32 {
  22. compat_int_t tuner;
  23. char name[32];
  24. compat_ulong_t rangelow, rangehigh;
  25. u32 flags; /* It is really u32 in videodev.h */
  26. u16 mode, signal;
  27. };
  28. static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
  29. {
  30. if(get_user(kp->tuner, &up->tuner))
  31. return -EFAULT;
  32. __copy_from_user(kp->name, up->name, 32);
  33. __get_user(kp->rangelow, &up->rangelow);
  34. __get_user(kp->rangehigh, &up->rangehigh);
  35. __get_user(kp->flags, &up->flags);
  36. __get_user(kp->mode, &up->mode);
  37. __get_user(kp->signal, &up->signal);
  38. return 0;
  39. }
  40. static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
  41. {
  42. if(put_user(kp->tuner, &up->tuner))
  43. return -EFAULT;
  44. __copy_to_user(up->name, kp->name, 32);
  45. __put_user(kp->rangelow, &up->rangelow);
  46. __put_user(kp->rangehigh, &up->rangehigh);
  47. __put_user(kp->flags, &up->flags);
  48. __put_user(kp->mode, &up->mode);
  49. __put_user(kp->signal, &up->signal);
  50. return 0;
  51. }
  52. struct video_buffer32 {
  53. compat_caddr_t base;
  54. compat_int_t height, width, depth, bytesperline;
  55. };
  56. static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
  57. {
  58. u32 tmp;
  59. if (get_user(tmp, &up->base))
  60. return -EFAULT;
  61. /* This is actually a physical address stored
  62. * as a void pointer.
  63. */
  64. kp->base = (void *)(unsigned long) tmp;
  65. __get_user(kp->height, &up->height);
  66. __get_user(kp->width, &up->width);
  67. __get_user(kp->depth, &up->depth);
  68. __get_user(kp->bytesperline, &up->bytesperline);
  69. return 0;
  70. }
  71. static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
  72. {
  73. u32 tmp = (u32)((unsigned long)kp->base);
  74. if(put_user(tmp, &up->base))
  75. return -EFAULT;
  76. __put_user(kp->height, &up->height);
  77. __put_user(kp->width, &up->width);
  78. __put_user(kp->depth, &up->depth);
  79. __put_user(kp->bytesperline, &up->bytesperline);
  80. return 0;
  81. }
  82. struct video_clip32 {
  83. s32 x, y, width, height; /* Its really s32 in videodev.h */
  84. compat_caddr_t next;
  85. };
  86. struct video_window32 {
  87. u32 x, y, width, height, chromakey, flags;
  88. compat_caddr_t clips;
  89. compat_int_t clipcount;
  90. };
  91. static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
  92. {
  93. int ret = -ENOIOCTLCMD;
  94. if (file->f_op->unlocked_ioctl)
  95. ret = file->f_op->unlocked_ioctl(file, cmd, arg);
  96. else if (file->f_op->ioctl) {
  97. lock_kernel();
  98. ret = file->f_op->ioctl(file->f_dentry->d_inode, file, cmd, arg);
  99. unlock_kernel();
  100. }
  101. return ret;
  102. }
  103. /* You get back everything except the clips... */
  104. static int put_video_window32(struct video_window *kp, struct video_window32 __user *up)
  105. {
  106. if(put_user(kp->x, &up->x))
  107. return -EFAULT;
  108. __put_user(kp->y, &up->y);
  109. __put_user(kp->width, &up->width);
  110. __put_user(kp->height, &up->height);
  111. __put_user(kp->chromakey, &up->chromakey);
  112. __put_user(kp->flags, &up->flags);
  113. __put_user(kp->clipcount, &up->clipcount);
  114. return 0;
  115. }
  116. struct v4l2_clip32
  117. {
  118. struct v4l2_rect c;
  119. compat_caddr_t next;
  120. };
  121. struct v4l2_window32
  122. {
  123. struct v4l2_rect w;
  124. enum v4l2_field field;
  125. __u32 chromakey;
  126. compat_caddr_t clips; /* actually struct v4l2_clip32 * */
  127. __u32 clipcount;
  128. compat_caddr_t bitmap;
  129. };
  130. static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
  131. {
  132. if (copy_from_user(&kp->w, &up->w, sizeof(up->w)))
  133. return -EFAULT;
  134. __get_user(kp->field, &up->field);
  135. __get_user(kp->chromakey, &up->chromakey);
  136. __get_user(kp->clipcount, &up->clipcount);
  137. if (kp->clipcount > 2048)
  138. return -EINVAL;
  139. if (kp->clipcount) {
  140. struct v4l2_clip32 *uclips = compat_ptr(up->clips);
  141. struct v4l2_clip *kclips;
  142. int n = kp->clipcount;
  143. kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip));
  144. kp->clips = kclips;
  145. while (--n >= 0) {
  146. copy_from_user(&kclips->c, &uclips->c, sizeof(uclips->c));
  147. kclips->next = n ? kclips + 1 : 0;
  148. uclips += 1;
  149. kclips += 1;
  150. }
  151. } else
  152. kp->clips = 0;
  153. return 0;
  154. }
  155. static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
  156. {
  157. if (copy_to_user(&up->w, &kp->w, sizeof(up->w)))
  158. return -EFAULT;
  159. __put_user(kp->field, &up->field);
  160. __put_user(kp->chromakey, &up->chromakey);
  161. __put_user(kp->clipcount, &up->clipcount);
  162. return 0;
  163. }
  164. static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
  165. {
  166. return copy_from_user(kp, up, sizeof(struct v4l2_pix_format));
  167. }
  168. static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
  169. {
  170. return copy_to_user(up, kp, sizeof(struct v4l2_pix_format));
  171. }
  172. static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
  173. {
  174. return copy_from_user(kp, up, sizeof(struct v4l2_vbi_format));
  175. }
  176. static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
  177. {
  178. return copy_to_user(up, kp, sizeof(struct v4l2_vbi_format));
  179. }
  180. struct v4l2_format32
  181. {
  182. enum v4l2_buf_type type;
  183. union
  184. {
  185. struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE
  186. struct v4l2_window32 win; // V4L2_BUF_TYPE_VIDEO_OVERLAY
  187. struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE
  188. __u8 raw_data[200]; // user-defined
  189. } fmt;
  190. };
  191. static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
  192. {
  193. if(get_user(kp->type, &up->type))
  194. return -EFAULT;
  195. switch (kp->type) {
  196. case V4L2_BUF_TYPE_VIDEO_CAPTURE:
  197. return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
  198. case V4L2_BUF_TYPE_VIDEO_OVERLAY:
  199. return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
  200. case V4L2_BUF_TYPE_VBI_CAPTURE:
  201. return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
  202. default:
  203. printk("compat_ioctl : unexpected VIDIOC_FMT type %d\n",
  204. kp->type);
  205. return -ENXIO;
  206. }
  207. }
  208. static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
  209. {
  210. if(put_user(kp->type, &up->type))
  211. return -EFAULT;
  212. switch (kp->type) {
  213. case V4L2_BUF_TYPE_VIDEO_CAPTURE:
  214. return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
  215. case V4L2_BUF_TYPE_VIDEO_OVERLAY:
  216. return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
  217. case V4L2_BUF_TYPE_VBI_CAPTURE:
  218. return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
  219. default:
  220. return -ENXIO;
  221. }
  222. }
  223. struct v4l2_standard32
  224. {
  225. __u32 index;
  226. __u32 id[2]; /* __u64 would get the alignment wrong */
  227. __u8 name[24];
  228. struct v4l2_fract frameperiod; /* Frames, not fields */
  229. __u32 framelines;
  230. __u32 reserved[4];
  231. };
  232. static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
  233. {
  234. /* other fields are not set by the user, nor used by the driver */
  235. return get_user(kp->index, &up->index);
  236. }
  237. static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
  238. {
  239. if(put_user(kp->index, &up->index))
  240. return -EFAULT;
  241. __copy_to_user(up->id, &kp->id, sizeof(__u64));
  242. __copy_to_user(up->name, kp->name, 24);
  243. __put_user(kp->frameperiod, &up->frameperiod);
  244. __put_user(kp->framelines, &up->framelines);
  245. __copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32));
  246. return 0;
  247. }
  248. struct v4l2_buffer32
  249. {
  250. __u32 index;
  251. enum v4l2_buf_type type;
  252. __u32 bytesused;
  253. __u32 flags;
  254. enum v4l2_field field;
  255. struct compat_timeval timestamp;
  256. struct v4l2_timecode timecode;
  257. __u32 sequence;
  258. /* memory location */
  259. enum v4l2_memory memory;
  260. union {
  261. __u32 offset;
  262. compat_long_t userptr;
  263. } m;
  264. __u32 length;
  265. __u32 input;
  266. __u32 reserved;
  267. };
  268. static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
  269. {
  270. if (get_user(kp->index, &up->index))
  271. return -EFAULT;
  272. __get_user(kp->type, &up->type);
  273. __get_user(kp->flags, &up->flags);
  274. __get_user(kp->memory, &up->memory);
  275. __get_user(kp->input, &up->input);
  276. switch(kp->memory) {
  277. case V4L2_MEMORY_MMAP:
  278. break;
  279. case V4L2_MEMORY_USERPTR:
  280. {
  281. unsigned long tmp = (unsigned long)compat_ptr(up->m.userptr);
  282. __get_user(kp->length, &up->length);
  283. __get_user(kp->m.userptr, &tmp);
  284. }
  285. break;
  286. case V4L2_MEMORY_OVERLAY:
  287. __get_user(kp->m.offset, &up->m.offset);
  288. break;
  289. }
  290. return 0;
  291. }
  292. static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
  293. {
  294. if (put_user(kp->index, &up->index))
  295. return -EFAULT;
  296. __put_user(kp->type, &up->type);
  297. __put_user(kp->flags, &up->flags);
  298. __put_user(kp->memory, &up->memory);
  299. __put_user(kp->input, &up->input);
  300. switch(kp->memory) {
  301. case V4L2_MEMORY_MMAP:
  302. __put_user(kp->length, &up->length);
  303. __put_user(kp->m.offset, &up->m.offset);
  304. break;
  305. case V4L2_MEMORY_USERPTR:
  306. __put_user(kp->length, &up->length);
  307. __put_user(kp->m.userptr, &up->m.userptr);
  308. break;
  309. case V4L2_MEMORY_OVERLAY:
  310. __put_user(kp->m.offset, &up->m.offset);
  311. break;
  312. }
  313. __put_user(kp->bytesused, &up->bytesused);
  314. __put_user(kp->field, &up->field);
  315. __put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec);
  316. __put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec);
  317. __copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode));
  318. __put_user(kp->sequence, &up->sequence);
  319. __put_user(kp->reserved, &up->reserved);
  320. return 0;
  321. }
  322. struct v4l2_framebuffer32
  323. {
  324. __u32 capability;
  325. __u32 flags;
  326. compat_caddr_t base;
  327. struct v4l2_pix_format fmt;
  328. };
  329. static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
  330. {
  331. u32 tmp;
  332. if (get_user(tmp, &up->base))
  333. return -EFAULT;
  334. kp->base = compat_ptr(tmp);
  335. __get_user(kp->capability, &up->capability);
  336. __get_user(kp->flags, &up->flags);
  337. get_v4l2_pix_format(&kp->fmt, &up->fmt);
  338. return 0;
  339. }
  340. static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
  341. {
  342. u32 tmp = (u32)((unsigned long)kp->base);
  343. if(put_user(tmp, &up->base))
  344. return -EFAULT;
  345. __put_user(kp->capability, &up->capability);
  346. __put_user(kp->flags, &up->flags);
  347. put_v4l2_pix_format(&kp->fmt, &up->fmt);
  348. return 0;
  349. }
  350. struct v4l2_input32 /* identical layout, but different size */
  351. {
  352. __u32 index; /* Which input */
  353. __u8 name[32]; /* Label */
  354. __u32 type; /* Type of input */
  355. __u32 audioset; /* Associated audios (bitfield) */
  356. __u32 tuner; /* Associated tuner */
  357. __u32 std[2]; /* __u64 would get the padding wrong */
  358. __u32 status;
  359. __u32 reserved[4];
  360. };
  361. #define VIDIOCGTUNER32 _IOWR('v',4, struct video_tuner32)
  362. #define VIDIOCSTUNER32 _IOW('v',5, struct video_tuner32)
  363. #define VIDIOCGWIN32 _IOR('v',9, struct video_window32)
  364. #define VIDIOCSWIN32 _IOW('v',10, struct video_window32)
  365. #define VIDIOCGFBUF32 _IOR('v',11, struct video_buffer32)
  366. #define VIDIOCSFBUF32 _IOW('v',12, struct video_buffer32)
  367. #define VIDIOCGFREQ32 _IOR('v',14, u32)
  368. #define VIDIOCSFREQ32 _IOW('v',15, u32)
  369. #define VIDIOC_G_FMT32 _IOWR ('V', 4, struct v4l2_format32)
  370. #define VIDIOC_S_FMT32 _IOWR ('V', 5, struct v4l2_format32)
  371. #define VIDIOC_QUERYBUF32 _IOWR ('V', 9, struct v4l2_buffer32)
  372. #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
  373. #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
  374. /* VIDIOC_OVERLAY is now _IOW, but was _IOWR */
  375. #define VIDIOC_OVERLAY32 _IOWR ('V', 14, compat_int_t)
  376. #define VIDIOC_QBUF32 _IOWR ('V', 15, struct v4l2_buffer32)
  377. #define VIDIOC_DQBUF32 _IOWR ('V', 17, struct v4l2_buffer32)
  378. #define VIDIOC_STREAMON32 _IOW ('V', 18, compat_int_t)
  379. #define VIDIOC_STREAMOFF32 _IOW ('V', 19, compat_int_t)
  380. #define VIDIOC_ENUMSTD32 _IOWR ('V', 25, struct v4l2_standard32)
  381. #define VIDIOC_ENUMINPUT32 _IOWR ('V', 26, struct v4l2_input32)
  382. /* VIDIOC_S_CTRL is now _IOWR, but was _IOW */
  383. #define VIDIOC_S_CTRL32 _IOW ('V', 28, struct v4l2_control)
  384. #define VIDIOC_G_INPUT32 _IOR ('V', 38, compat_int_t)
  385. #define VIDIOC_S_INPUT32 _IOWR ('V', 39, compat_int_t)
  386. #define VIDIOC_TRY_FMT32 _IOWR ('V', 64, struct v4l2_format32)
  387. enum {
  388. MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip)
  389. };
  390. static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg)
  391. {
  392. struct video_window32 __user *up = compat_ptr(arg);
  393. struct video_window __user *vw;
  394. struct video_clip __user *p;
  395. int nclips;
  396. u32 n;
  397. if (get_user(nclips, &up->clipcount))
  398. return -EFAULT;
  399. /* Peculiar interface... */
  400. if (nclips < 0)
  401. nclips = VIDEO_CLIPMAP_SIZE;
  402. if (nclips > MaxClips)
  403. return -ENOMEM;
  404. vw = compat_alloc_user_space(sizeof(struct video_window) +
  405. nclips * sizeof(struct video_clip));
  406. p = nclips ? (struct video_clip __user *)(vw + 1) : NULL;
  407. if (get_user(n, &up->x) || put_user(n, &vw->x) ||
  408. get_user(n, &up->y) || put_user(n, &vw->y) ||
  409. get_user(n, &up->width) || put_user(n, &vw->width) ||
  410. get_user(n, &up->height) || put_user(n, &vw->height) ||
  411. get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) ||
  412. get_user(n, &up->flags) || put_user(n, &vw->flags) ||
  413. get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) ||
  414. get_user(n, &up->clips) || put_user(p, &vw->clips))
  415. return -EFAULT;
  416. if (nclips) {
  417. struct video_clip32 __user *u = compat_ptr(n);
  418. int i;
  419. if (!u)
  420. return -EINVAL;
  421. for (i = 0; i < nclips; i++, u++, p++) {
  422. s32 v;
  423. if (get_user(v, &u->x) ||
  424. put_user(v, &p->x) ||
  425. get_user(v, &u->y) ||
  426. put_user(v, &p->y) ||
  427. get_user(v, &u->width) ||
  428. put_user(v, &p->width) ||
  429. get_user(v, &u->height) ||
  430. put_user(v, &p->height) ||
  431. put_user(NULL, &p->next))
  432. return -EFAULT;
  433. }
  434. }
  435. return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw);
  436. }
  437. static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
  438. {
  439. union {
  440. struct video_tuner vt;
  441. struct video_buffer vb;
  442. struct video_window vw;
  443. struct v4l2_format v2f;
  444. struct v4l2_buffer v2b;
  445. struct v4l2_framebuffer v2fb;
  446. struct v4l2_standard v2s;
  447. unsigned long vx;
  448. } karg;
  449. void __user *up = compat_ptr(arg);
  450. int compatible_arg = 1;
  451. int err = 0;
  452. /* First, convert the command. */
  453. switch(cmd) {
  454. case VIDIOCGTUNER32: cmd = VIDIOCGTUNER; break;
  455. case VIDIOCSTUNER32: cmd = VIDIOCSTUNER; break;
  456. case VIDIOCGWIN32: cmd = VIDIOCGWIN; break;
  457. case VIDIOCGFBUF32: cmd = VIDIOCGFBUF; break;
  458. case VIDIOCSFBUF32: cmd = VIDIOCSFBUF; break;
  459. case VIDIOCGFREQ32: cmd = VIDIOCGFREQ; break;
  460. case VIDIOCSFREQ32: cmd = VIDIOCSFREQ; break;
  461. case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break;
  462. case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break;
  463. case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break;
  464. case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break;
  465. case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break;
  466. case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
  467. case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
  468. case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break;
  469. case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break;
  470. case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
  471. case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break;
  472. case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break;
  473. case VIDIOC_S_CTRL32: cmd = VIDIOC_S_CTRL; break;
  474. case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break;
  475. case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break;
  476. case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break;
  477. };
  478. switch(cmd) {
  479. case VIDIOCSTUNER:
  480. case VIDIOCGTUNER:
  481. err = get_video_tuner32(&karg.vt, up);
  482. compatible_arg = 0;
  483. break;
  484. case VIDIOCSFBUF:
  485. err = get_video_buffer32(&karg.vb, up);
  486. compatible_arg = 0;
  487. break;
  488. case VIDIOCSFREQ:
  489. case VIDIOC_S_INPUT:
  490. case VIDIOC_OVERLAY:
  491. case VIDIOC_STREAMON:
  492. case VIDIOC_STREAMOFF:
  493. err = get_user(karg.vx, (u32 __user *)up);
  494. compatible_arg = 0;
  495. break;
  496. case VIDIOC_S_FBUF:
  497. err = get_v4l2_framebuffer32(&karg.v2fb, up);
  498. compatible_arg = 0;
  499. break;
  500. case VIDIOC_G_FMT:
  501. case VIDIOC_S_FMT:
  502. case VIDIOC_TRY_FMT:
  503. err = get_v4l2_format32(&karg.v2f, up);
  504. compatible_arg = 0;
  505. break;
  506. case VIDIOC_QUERYBUF:
  507. case VIDIOC_QBUF:
  508. case VIDIOC_DQBUF:
  509. err = get_v4l2_buffer32(&karg.v2b, up);
  510. compatible_arg = 0;
  511. break;
  512. case VIDIOC_ENUMSTD:
  513. err = get_v4l2_standard32(&karg.v2s, up);
  514. compatible_arg = 0;
  515. break;
  516. case VIDIOCGWIN:
  517. case VIDIOCGFBUF:
  518. case VIDIOCGFREQ:
  519. case VIDIOC_G_FBUF:
  520. case VIDIOC_G_INPUT:
  521. compatible_arg = 0;
  522. };
  523. if(err)
  524. goto out;
  525. if(compatible_arg)
  526. err = native_ioctl(file, cmd, (unsigned long)up);
  527. else {
  528. mm_segment_t old_fs = get_fs();
  529. set_fs(KERNEL_DS);
  530. err = native_ioctl(file, cmd, (unsigned long)&karg);
  531. set_fs(old_fs);
  532. }
  533. if(err == 0) {
  534. switch(cmd) {
  535. case VIDIOCGTUNER:
  536. err = put_video_tuner32(&karg.vt, up);
  537. break;
  538. case VIDIOCGWIN:
  539. err = put_video_window32(&karg.vw, up);
  540. break;
  541. case VIDIOCGFBUF:
  542. err = put_video_buffer32(&karg.vb, up);
  543. break;
  544. case VIDIOC_G_FBUF:
  545. err = put_v4l2_framebuffer32(&karg.v2fb, up);
  546. break;
  547. case VIDIOC_G_FMT:
  548. case VIDIOC_S_FMT:
  549. case VIDIOC_TRY_FMT:
  550. err = put_v4l2_format32(&karg.v2f, up);
  551. break;
  552. case VIDIOC_QUERYBUF:
  553. case VIDIOC_QBUF:
  554. case VIDIOC_DQBUF:
  555. err = put_v4l2_buffer32(&karg.v2b, up);
  556. break;
  557. case VIDIOC_ENUMSTD:
  558. err = put_v4l2_standard32(&karg.v2s, up);
  559. break;
  560. case VIDIOCGFREQ:
  561. case VIDIOC_G_INPUT:
  562. err = put_user(((u32)karg.vx), (u32 __user *)up);
  563. break;
  564. };
  565. }
  566. out:
  567. return err;
  568. }
  569. long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
  570. {
  571. int ret = -ENOIOCTLCMD;
  572. if (!file->f_op->ioctl)
  573. return ret;
  574. switch (cmd) {
  575. case VIDIOCSWIN32:
  576. ret = do_set_window(file, cmd, arg);
  577. break;
  578. case VIDIOCGTUNER32:
  579. case VIDIOCSTUNER32:
  580. case VIDIOCGWIN32:
  581. case VIDIOCGFBUF32:
  582. case VIDIOCSFBUF32:
  583. case VIDIOCGFREQ32:
  584. case VIDIOCSFREQ32:
  585. case VIDIOC_QUERYCAP:
  586. case VIDIOC_ENUM_FMT:
  587. case VIDIOC_G_FMT32:
  588. case VIDIOC_S_FMT32:
  589. case VIDIOC_REQBUFS:
  590. case VIDIOC_QUERYBUF32:
  591. case VIDIOC_G_FBUF32:
  592. case VIDIOC_S_FBUF32:
  593. case VIDIOC_OVERLAY32:
  594. case VIDIOC_QBUF32:
  595. case VIDIOC_DQBUF32:
  596. case VIDIOC_STREAMON32:
  597. case VIDIOC_STREAMOFF32:
  598. case VIDIOC_G_PARM:
  599. case VIDIOC_G_STD:
  600. case VIDIOC_S_STD:
  601. case VIDIOC_ENUMSTD32:
  602. case VIDIOC_ENUMINPUT32:
  603. case VIDIOC_G_CTRL:
  604. case VIDIOC_S_CTRL32:
  605. case VIDIOC_QUERYCTRL:
  606. case VIDIOC_G_INPUT32:
  607. case VIDIOC_S_INPUT32:
  608. case VIDIOC_TRY_FMT32:
  609. ret = do_video_ioctl(file, cmd, arg);
  610. break;
  611. /* Little v, the video4linux ioctls (conflict?) */
  612. case VIDIOCGCAP:
  613. case VIDIOCGCHAN:
  614. case VIDIOCSCHAN:
  615. case VIDIOCGPICT:
  616. case VIDIOCSPICT:
  617. case VIDIOCCAPTURE:
  618. case VIDIOCKEY:
  619. case VIDIOCGAUDIO:
  620. case VIDIOCSAUDIO:
  621. case VIDIOCSYNC:
  622. case VIDIOCMCAPTURE:
  623. case VIDIOCGMBUF:
  624. case VIDIOCGUNIT:
  625. case VIDIOCGCAPTURE:
  626. case VIDIOCSCAPTURE:
  627. /* BTTV specific... */
  628. case _IOW('v', BASE_VIDIOCPRIVATE+0, char [256]):
  629. case _IOR('v', BASE_VIDIOCPRIVATE+1, char [256]):
  630. case _IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int):
  631. case _IOW('v' , BASE_VIDIOCPRIVATE+3, char [16]): /* struct bttv_pll_info */
  632. case _IOR('v' , BASE_VIDIOCPRIVATE+4, int):
  633. case _IOR('v' , BASE_VIDIOCPRIVATE+5, int):
  634. case _IOR('v' , BASE_VIDIOCPRIVATE+6, int):
  635. case _IOR('v' , BASE_VIDIOCPRIVATE+7, int):
  636. ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
  637. break;
  638. }
  639. return ret;
  640. }
  641. #else
  642. long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
  643. {
  644. return -ENOIOCTLCMD;
  645. }
  646. #endif
  647. EXPORT_SYMBOL_GPL(v4l_compat_ioctl32);
  648. MODULE_LICENSE("GPL");