Commit | Line | Data |
---|---|---|
ed9eccbe DS |
1 | /* |
2 | comedi/comedi_compat32.c | |
3 | 32-bit ioctl compatibility for 64-bit comedi kernel module. | |
4 | ||
5 | Author: Ian Abbott, MEV Ltd. <abbotti@mev.co.uk> | |
6 | Copyright (C) 2007 MEV Ltd. <http://www.mev.co.uk/> | |
7 | ||
8 | COMEDI - Linux Control and Measurement Device Interface | |
9 | Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org> | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | ||
25 | */ | |
26 | ||
27 | #define __NO_VERSION__ | |
28 | #include "comedi.h" | |
29 | #include <linux/smp_lock.h> | |
f3662436 | 30 | #include <linux/uaccess.h> |
ed9eccbe DS |
31 | |
32 | #include "comedi_compat32.h" | |
33 | ||
34 | #ifdef CONFIG_COMPAT | |
35 | ||
01914923 GKH |
36 | #define COMEDI32_CHANINFO _IOR(CIO, 3, struct comedi32_chaninfo_struct) |
37 | #define COMEDI32_RANGEINFO _IOR(CIO, 8, struct comedi32_rangeinfo_struct) | |
ed9eccbe DS |
38 | /* N.B. COMEDI32_CMD and COMEDI_CMD ought to use _IOWR, not _IOR. |
39 | * It's too late to change it now, but it only affects the command number. */ | |
01914923 | 40 | #define COMEDI32_CMD _IOR(CIO, 9, struct comedi32_cmd_struct) |
ed9eccbe DS |
41 | /* N.B. COMEDI32_CMDTEST and COMEDI_CMDTEST ought to use _IOWR, not _IOR. |
42 | * It's too late to change it now, but it only affects the command number. */ | |
01914923 GKH |
43 | #define COMEDI32_CMDTEST _IOR(CIO, 10, struct comedi32_cmd_struct) |
44 | #define COMEDI32_INSNLIST _IOR(CIO, 11, struct comedi32_insnlist_struct) | |
45 | #define COMEDI32_INSN _IOR(CIO, 12, struct comedi32_insn_struct) | |
ed9eccbe | 46 | |
bf8db92e | 47 | struct comedi32_chaninfo_struct { |
ed9eccbe | 48 | unsigned int subdev; |
790c5541 | 49 | compat_uptr_t maxdata_list; /* 32-bit 'unsigned int *' */ |
0a85b6f0 | 50 | compat_uptr_t flaglist; /* 32-bit 'unsigned int *' */ |
ed9eccbe DS |
51 | compat_uptr_t rangelist; /* 32-bit 'unsigned int *' */ |
52 | unsigned int unused[4]; | |
bf8db92e | 53 | }; |
ed9eccbe | 54 | |
bf8db92e | 55 | struct comedi32_rangeinfo_struct { |
ed9eccbe DS |
56 | unsigned int range_type; |
57 | compat_uptr_t range_ptr; /* 32-bit 'void *' */ | |
bf8db92e | 58 | }; |
ed9eccbe | 59 | |
bf8db92e | 60 | struct comedi32_cmd_struct { |
ed9eccbe DS |
61 | unsigned int subdev; |
62 | unsigned int flags; | |
63 | unsigned int start_src; | |
64 | unsigned int start_arg; | |
65 | unsigned int scan_begin_src; | |
66 | unsigned int scan_begin_arg; | |
67 | unsigned int convert_src; | |
68 | unsigned int convert_arg; | |
69 | unsigned int scan_end_src; | |
70 | unsigned int scan_end_arg; | |
71 | unsigned int stop_src; | |
72 | unsigned int stop_arg; | |
0a85b6f0 | 73 | compat_uptr_t chanlist; /* 32-bit 'unsigned int *' */ |
ed9eccbe | 74 | unsigned int chanlist_len; |
0a85b6f0 | 75 | compat_uptr_t data; /* 32-bit 'short *' */ |
ed9eccbe | 76 | unsigned int data_len; |
bf8db92e | 77 | }; |
ed9eccbe | 78 | |
bf8db92e | 79 | struct comedi32_insn_struct { |
ed9eccbe DS |
80 | unsigned int insn; |
81 | unsigned int n; | |
0a85b6f0 | 82 | compat_uptr_t data; /* 32-bit 'unsigned int *' */ |
ed9eccbe DS |
83 | unsigned int subdev; |
84 | unsigned int chanspec; | |
85 | unsigned int unused[3]; | |
bf8db92e | 86 | }; |
ed9eccbe | 87 | |
bf8db92e | 88 | struct comedi32_insnlist_struct { |
ed9eccbe | 89 | unsigned int n_insns; |
0a85b6f0 | 90 | compat_uptr_t insns; /* 32-bit 'struct comedi_insn *' */ |
bf8db92e | 91 | }; |
ed9eccbe DS |
92 | |
93 | /* Handle translated ioctl. */ | |
94 | static int translated_ioctl(struct file *file, unsigned int cmd, | |
0a85b6f0 | 95 | unsigned long arg) |
ed9eccbe | 96 | { |
82675f35 | 97 | if (!file->f_op) |
ed9eccbe | 98 | return -ENOTTY; |
82675f35 | 99 | |
ed9eccbe | 100 | if (file->f_op->unlocked_ioctl) { |
0a85b6f0 | 101 | int rc = (int)(*file->f_op->unlocked_ioctl) (file, cmd, arg); |
82675f35 | 102 | if (rc == -ENOIOCTLCMD) |
ed9eccbe | 103 | rc = -ENOTTY; |
ed9eccbe DS |
104 | return rc; |
105 | } | |
ed9eccbe DS |
106 | return -ENOTTY; |
107 | } | |
108 | ||
109 | /* Handle 32-bit COMEDI_CHANINFO ioctl. */ | |
110 | static int compat_chaninfo(struct file *file, unsigned long arg) | |
111 | { | |
01914923 | 112 | struct comedi_chaninfo __user *chaninfo; |
bf8db92e | 113 | struct comedi32_chaninfo_struct __user *chaninfo32; |
ed9eccbe DS |
114 | int err; |
115 | union { | |
116 | unsigned int uint; | |
117 | compat_uptr_t uptr; | |
118 | } temp; | |
119 | ||
120 | chaninfo32 = compat_ptr(arg); | |
121 | chaninfo = compat_alloc_user_space(sizeof(*chaninfo)); | |
122 | ||
123 | /* Copy chaninfo structure. Ignore unused members. */ | |
124 | if (!access_ok(VERIFY_READ, chaninfo32, sizeof(*chaninfo32)) | |
0a85b6f0 | 125 | || !access_ok(VERIFY_WRITE, chaninfo, sizeof(*chaninfo))) { |
ed9eccbe DS |
126 | return -EFAULT; |
127 | } | |
128 | err = 0; | |
129 | err |= __get_user(temp.uint, &chaninfo32->subdev); | |
130 | err |= __put_user(temp.uint, &chaninfo->subdev); | |
131 | err |= __get_user(temp.uptr, &chaninfo32->maxdata_list); | |
132 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->maxdata_list); | |
133 | err |= __get_user(temp.uptr, &chaninfo32->flaglist); | |
134 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->flaglist); | |
135 | err |= __get_user(temp.uptr, &chaninfo32->rangelist); | |
136 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->rangelist); | |
82675f35 | 137 | if (err) |
ed9eccbe | 138 | return -EFAULT; |
ed9eccbe DS |
139 | |
140 | return translated_ioctl(file, COMEDI_CHANINFO, (unsigned long)chaninfo); | |
141 | } | |
142 | ||
143 | /* Handle 32-bit COMEDI_RANGEINFO ioctl. */ | |
144 | static int compat_rangeinfo(struct file *file, unsigned long arg) | |
145 | { | |
d0a353f6 | 146 | struct comedi_rangeinfo __user *rangeinfo; |
bf8db92e | 147 | struct comedi32_rangeinfo_struct __user *rangeinfo32; |
ed9eccbe DS |
148 | int err; |
149 | union { | |
150 | unsigned int uint; | |
151 | compat_uptr_t uptr; | |
152 | } temp; | |
153 | ||
154 | rangeinfo32 = compat_ptr(arg); | |
155 | rangeinfo = compat_alloc_user_space(sizeof(*rangeinfo)); | |
156 | ||
157 | /* Copy rangeinfo structure. */ | |
158 | if (!access_ok(VERIFY_READ, rangeinfo32, sizeof(*rangeinfo32)) | |
0a85b6f0 | 159 | || !access_ok(VERIFY_WRITE, rangeinfo, sizeof(*rangeinfo))) { |
ed9eccbe DS |
160 | return -EFAULT; |
161 | } | |
162 | err = 0; | |
163 | err |= __get_user(temp.uint, &rangeinfo32->range_type); | |
164 | err |= __put_user(temp.uint, &rangeinfo->range_type); | |
165 | err |= __get_user(temp.uptr, &rangeinfo32->range_ptr); | |
166 | err |= __put_user(compat_ptr(temp.uptr), &rangeinfo->range_ptr); | |
82675f35 | 167 | if (err) |
ed9eccbe | 168 | return -EFAULT; |
ed9eccbe DS |
169 | |
170 | return translated_ioctl(file, COMEDI_RANGEINFO, | |
0a85b6f0 | 171 | (unsigned long)rangeinfo); |
ed9eccbe DS |
172 | } |
173 | ||
174 | /* Copy 32-bit cmd structure to native cmd structure. */ | |
f3662436 SW |
175 | static int get_compat_cmd(struct comedi_cmd __user *cmd, |
176 | struct comedi32_cmd_struct __user *cmd32) | |
ed9eccbe DS |
177 | { |
178 | int err; | |
179 | union { | |
180 | unsigned int uint; | |
181 | compat_uptr_t uptr; | |
182 | } temp; | |
183 | ||
184 | /* Copy cmd structure. */ | |
185 | if (!access_ok(VERIFY_READ, cmd32, sizeof(*cmd32)) | |
0a85b6f0 | 186 | || !access_ok(VERIFY_WRITE, cmd, sizeof(*cmd))) { |
ed9eccbe DS |
187 | return -EFAULT; |
188 | } | |
189 | err = 0; | |
190 | err |= __get_user(temp.uint, &cmd32->subdev); | |
191 | err |= __put_user(temp.uint, &cmd->subdev); | |
192 | err |= __get_user(temp.uint, &cmd32->flags); | |
193 | err |= __put_user(temp.uint, &cmd->flags); | |
194 | err |= __get_user(temp.uint, &cmd32->start_src); | |
195 | err |= __put_user(temp.uint, &cmd->start_src); | |
196 | err |= __get_user(temp.uint, &cmd32->start_arg); | |
197 | err |= __put_user(temp.uint, &cmd->start_arg); | |
198 | err |= __get_user(temp.uint, &cmd32->scan_begin_src); | |
199 | err |= __put_user(temp.uint, &cmd->scan_begin_src); | |
200 | err |= __get_user(temp.uint, &cmd32->scan_begin_arg); | |
201 | err |= __put_user(temp.uint, &cmd->scan_begin_arg); | |
202 | err |= __get_user(temp.uint, &cmd32->convert_src); | |
203 | err |= __put_user(temp.uint, &cmd->convert_src); | |
204 | err |= __get_user(temp.uint, &cmd32->convert_arg); | |
205 | err |= __put_user(temp.uint, &cmd->convert_arg); | |
206 | err |= __get_user(temp.uint, &cmd32->scan_end_src); | |
207 | err |= __put_user(temp.uint, &cmd->scan_end_src); | |
208 | err |= __get_user(temp.uint, &cmd32->scan_end_arg); | |
209 | err |= __put_user(temp.uint, &cmd->scan_end_arg); | |
210 | err |= __get_user(temp.uint, &cmd32->stop_src); | |
211 | err |= __put_user(temp.uint, &cmd->stop_src); | |
212 | err |= __get_user(temp.uint, &cmd32->stop_arg); | |
213 | err |= __put_user(temp.uint, &cmd->stop_arg); | |
214 | err |= __get_user(temp.uptr, &cmd32->chanlist); | |
215 | err |= __put_user(compat_ptr(temp.uptr), &cmd->chanlist); | |
216 | err |= __get_user(temp.uint, &cmd32->chanlist_len); | |
217 | err |= __put_user(temp.uint, &cmd->chanlist_len); | |
218 | err |= __get_user(temp.uptr, &cmd32->data); | |
219 | err |= __put_user(compat_ptr(temp.uptr), &cmd->data); | |
220 | err |= __get_user(temp.uint, &cmd32->data_len); | |
221 | err |= __put_user(temp.uint, &cmd->data_len); | |
222 | return err ? -EFAULT : 0; | |
223 | } | |
224 | ||
225 | /* Copy native cmd structure to 32-bit cmd structure. */ | |
f3662436 SW |
226 | static int put_compat_cmd(struct comedi32_cmd_struct __user *cmd32, |
227 | struct comedi_cmd __user *cmd) | |
ed9eccbe DS |
228 | { |
229 | int err; | |
230 | unsigned int temp; | |
231 | ||
232 | /* Copy back most of cmd structure. */ | |
233 | /* Assume the pointer values are already valid. */ | |
234 | /* (Could use ptr_to_compat() to set them, but that wasn't implemented | |
235 | * until kernel version 2.6.11.) */ | |
236 | if (!access_ok(VERIFY_READ, cmd, sizeof(*cmd)) | |
0a85b6f0 | 237 | || !access_ok(VERIFY_WRITE, cmd32, sizeof(*cmd32))) { |
ed9eccbe DS |
238 | return -EFAULT; |
239 | } | |
240 | err = 0; | |
241 | err |= __get_user(temp, &cmd->subdev); | |
242 | err |= __put_user(temp, &cmd32->subdev); | |
243 | err |= __get_user(temp, &cmd->flags); | |
244 | err |= __put_user(temp, &cmd32->flags); | |
245 | err |= __get_user(temp, &cmd->start_src); | |
246 | err |= __put_user(temp, &cmd32->start_src); | |
247 | err |= __get_user(temp, &cmd->start_arg); | |
248 | err |= __put_user(temp, &cmd32->start_arg); | |
249 | err |= __get_user(temp, &cmd->scan_begin_src); | |
250 | err |= __put_user(temp, &cmd32->scan_begin_src); | |
251 | err |= __get_user(temp, &cmd->scan_begin_arg); | |
252 | err |= __put_user(temp, &cmd32->scan_begin_arg); | |
253 | err |= __get_user(temp, &cmd->convert_src); | |
254 | err |= __put_user(temp, &cmd32->convert_src); | |
255 | err |= __get_user(temp, &cmd->convert_arg); | |
256 | err |= __put_user(temp, &cmd32->convert_arg); | |
257 | err |= __get_user(temp, &cmd->scan_end_src); | |
258 | err |= __put_user(temp, &cmd32->scan_end_src); | |
259 | err |= __get_user(temp, &cmd->scan_end_arg); | |
260 | err |= __put_user(temp, &cmd32->scan_end_arg); | |
261 | err |= __get_user(temp, &cmd->stop_src); | |
262 | err |= __put_user(temp, &cmd32->stop_src); | |
263 | err |= __get_user(temp, &cmd->stop_arg); | |
264 | err |= __put_user(temp, &cmd32->stop_arg); | |
265 | /* Assume chanlist pointer is unchanged. */ | |
266 | err |= __get_user(temp, &cmd->chanlist_len); | |
267 | err |= __put_user(temp, &cmd32->chanlist_len); | |
268 | /* Assume data pointer is unchanged. */ | |
269 | err |= __get_user(temp, &cmd->data_len); | |
270 | err |= __put_user(temp, &cmd32->data_len); | |
271 | return err ? -EFAULT : 0; | |
272 | } | |
273 | ||
274 | /* Handle 32-bit COMEDI_CMD ioctl. */ | |
275 | static int compat_cmd(struct file *file, unsigned long arg) | |
276 | { | |
ea6d0d4c | 277 | struct comedi_cmd __user *cmd; |
bf8db92e | 278 | struct comedi32_cmd_struct __user *cmd32; |
ed9eccbe DS |
279 | int rc; |
280 | ||
281 | cmd32 = compat_ptr(arg); | |
282 | cmd = compat_alloc_user_space(sizeof(*cmd)); | |
283 | ||
284 | rc = get_compat_cmd(cmd, cmd32); | |
82675f35 | 285 | if (rc) |
ed9eccbe | 286 | return rc; |
ed9eccbe DS |
287 | |
288 | return translated_ioctl(file, COMEDI_CMD, (unsigned long)cmd); | |
289 | } | |
290 | ||
291 | /* Handle 32-bit COMEDI_CMDTEST ioctl. */ | |
292 | static int compat_cmdtest(struct file *file, unsigned long arg) | |
293 | { | |
ea6d0d4c | 294 | struct comedi_cmd __user *cmd; |
bf8db92e | 295 | struct comedi32_cmd_struct __user *cmd32; |
ed9eccbe DS |
296 | int rc, err; |
297 | ||
298 | cmd32 = compat_ptr(arg); | |
299 | cmd = compat_alloc_user_space(sizeof(*cmd)); | |
300 | ||
301 | rc = get_compat_cmd(cmd, cmd32); | |
82675f35 | 302 | if (rc) |
ed9eccbe | 303 | return rc; |
ed9eccbe DS |
304 | |
305 | rc = translated_ioctl(file, COMEDI_CMDTEST, (unsigned long)cmd); | |
82675f35 | 306 | if (rc < 0) |
ed9eccbe | 307 | return rc; |
ed9eccbe DS |
308 | |
309 | err = put_compat_cmd(cmd32, cmd); | |
82675f35 | 310 | if (err) |
ed9eccbe | 311 | rc = err; |
82675f35 | 312 | |
ed9eccbe DS |
313 | return rc; |
314 | } | |
315 | ||
316 | /* Copy 32-bit insn structure to native insn structure. */ | |
f3662436 SW |
317 | static int get_compat_insn(struct comedi_insn __user *insn, |
318 | struct comedi32_insn_struct __user *insn32) | |
ed9eccbe DS |
319 | { |
320 | int err; | |
321 | union { | |
322 | unsigned int uint; | |
323 | compat_uptr_t uptr; | |
324 | } temp; | |
325 | ||
326 | /* Copy insn structure. Ignore the unused members. */ | |
327 | err = 0; | |
328 | if (!access_ok(VERIFY_READ, insn32, sizeof(*insn32)) | |
0a85b6f0 | 329 | || !access_ok(VERIFY_WRITE, insn, sizeof(*insn))) |
ed9eccbe | 330 | return -EFAULT; |
82675f35 | 331 | |
ed9eccbe DS |
332 | err |= __get_user(temp.uint, &insn32->insn); |
333 | err |= __put_user(temp.uint, &insn->insn); | |
334 | err |= __get_user(temp.uint, &insn32->n); | |
335 | err |= __put_user(temp.uint, &insn->n); | |
336 | err |= __get_user(temp.uptr, &insn32->data); | |
337 | err |= __put_user(compat_ptr(temp.uptr), &insn->data); | |
338 | err |= __get_user(temp.uint, &insn32->subdev); | |
339 | err |= __put_user(temp.uint, &insn->subdev); | |
340 | err |= __get_user(temp.uint, &insn32->chanspec); | |
341 | err |= __put_user(temp.uint, &insn->chanspec); | |
342 | return err ? -EFAULT : 0; | |
343 | } | |
344 | ||
345 | /* Handle 32-bit COMEDI_INSNLIST ioctl. */ | |
346 | static int compat_insnlist(struct file *file, unsigned long arg) | |
347 | { | |
348 | struct combined_insnlist { | |
da613f4f | 349 | struct comedi_insnlist insnlist; |
90035c08 | 350 | struct comedi_insn insn[1]; |
ed9eccbe | 351 | } __user *s; |
bf8db92e BP |
352 | struct comedi32_insnlist_struct __user *insnlist32; |
353 | struct comedi32_insn_struct __user *insn32; | |
ed9eccbe DS |
354 | compat_uptr_t uptr; |
355 | unsigned int n_insns, n; | |
356 | int err, rc; | |
357 | ||
358 | insnlist32 = compat_ptr(arg); | |
359 | ||
360 | /* Get 32-bit insnlist structure. */ | |
f3662436 | 361 | if (!access_ok(VERIFY_READ, insnlist32, sizeof(*insnlist32))) |
ed9eccbe | 362 | return -EFAULT; |
f3662436 | 363 | |
ed9eccbe DS |
364 | err = 0; |
365 | err |= __get_user(n_insns, &insnlist32->n_insns); | |
366 | err |= __get_user(uptr, &insnlist32->insns); | |
367 | insn32 = compat_ptr(uptr); | |
82675f35 | 368 | if (err) |
ed9eccbe | 369 | return -EFAULT; |
ed9eccbe DS |
370 | |
371 | /* Allocate user memory to copy insnlist and insns into. */ | |
372 | s = compat_alloc_user_space(offsetof(struct combined_insnlist, | |
0a85b6f0 | 373 | insn[n_insns])); |
ed9eccbe DS |
374 | |
375 | /* Set native insnlist structure. */ | |
f3662436 | 376 | if (!access_ok(VERIFY_WRITE, &s->insnlist, sizeof(s->insnlist))) |
ed9eccbe | 377 | return -EFAULT; |
f3662436 | 378 | |
ed9eccbe DS |
379 | err |= __put_user(n_insns, &s->insnlist.n_insns); |
380 | err |= __put_user(&s->insn[0], &s->insnlist.insns); | |
82675f35 | 381 | if (err) |
ed9eccbe | 382 | return -EFAULT; |
ed9eccbe DS |
383 | |
384 | /* Copy insn structures. */ | |
385 | for (n = 0; n < n_insns; n++) { | |
386 | rc = get_compat_insn(&s->insn[n], &insn32[n]); | |
82675f35 | 387 | if (rc) |
ed9eccbe | 388 | return rc; |
ed9eccbe DS |
389 | } |
390 | ||
391 | return translated_ioctl(file, COMEDI_INSNLIST, | |
0a85b6f0 | 392 | (unsigned long)&s->insnlist); |
ed9eccbe DS |
393 | } |
394 | ||
395 | /* Handle 32-bit COMEDI_INSN ioctl. */ | |
396 | static int compat_insn(struct file *file, unsigned long arg) | |
397 | { | |
90035c08 | 398 | struct comedi_insn __user *insn; |
bf8db92e | 399 | struct comedi32_insn_struct __user *insn32; |
ed9eccbe DS |
400 | int rc; |
401 | ||
402 | insn32 = compat_ptr(arg); | |
403 | insn = compat_alloc_user_space(sizeof(*insn)); | |
404 | ||
405 | rc = get_compat_insn(insn, insn32); | |
82675f35 | 406 | if (rc) |
ed9eccbe | 407 | return rc; |
ed9eccbe DS |
408 | |
409 | return translated_ioctl(file, COMEDI_INSN, (unsigned long)insn); | |
410 | } | |
411 | ||
412 | /* Process untranslated ioctl. */ | |
413 | /* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */ | |
414 | static inline int raw_ioctl(struct file *file, unsigned int cmd, | |
0a85b6f0 | 415 | unsigned long arg) |
ed9eccbe DS |
416 | { |
417 | int rc; | |
418 | ||
419 | switch (cmd) { | |
420 | case COMEDI_DEVCONFIG: | |
421 | case COMEDI_DEVINFO: | |
422 | case COMEDI_SUBDINFO: | |
423 | case COMEDI_BUFCONFIG: | |
424 | case COMEDI_BUFINFO: | |
425 | /* Just need to translate the pointer argument. */ | |
426 | arg = (unsigned long)compat_ptr(arg); | |
427 | rc = translated_ioctl(file, cmd, arg); | |
428 | break; | |
429 | case COMEDI_LOCK: | |
430 | case COMEDI_UNLOCK: | |
431 | case COMEDI_CANCEL: | |
432 | case COMEDI_POLL: | |
433 | /* No translation needed. */ | |
434 | rc = translated_ioctl(file, cmd, arg); | |
435 | break; | |
436 | case COMEDI32_CHANINFO: | |
437 | rc = compat_chaninfo(file, arg); | |
438 | break; | |
439 | case COMEDI32_RANGEINFO: | |
440 | rc = compat_rangeinfo(file, arg); | |
441 | break; | |
442 | case COMEDI32_CMD: | |
443 | rc = compat_cmd(file, arg); | |
444 | break; | |
445 | case COMEDI32_CMDTEST: | |
446 | rc = compat_cmdtest(file, arg); | |
447 | break; | |
448 | case COMEDI32_INSNLIST: | |
449 | rc = compat_insnlist(file, arg); | |
450 | break; | |
451 | case COMEDI32_INSN: | |
452 | rc = compat_insn(file, arg); | |
453 | break; | |
454 | default: | |
455 | rc = -ENOIOCTLCMD; | |
456 | break; | |
457 | } | |
458 | return rc; | |
459 | } | |
460 | ||
ed9eccbe DS |
461 | /* compat_ioctl file operation. */ |
462 | /* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */ | |
0a85b6f0 | 463 | long comedi_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
ed9eccbe DS |
464 | { |
465 | return raw_ioctl(file, cmd, arg); | |
466 | } | |
467 | ||
0a85b6f0 | 468 | #endif /* CONFIG_COMPAT */ |