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Commit | Line | Data |
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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__ | |
f3662436 | 28 | #include <linux/uaccess.h> |
3b6b25b5 | 29 | #include "comedi.h" |
ed9eccbe DS |
30 | #include "comedi_compat32.h" |
31 | ||
32 | #ifdef CONFIG_COMPAT | |
33 | ||
01914923 GKH |
34 | #define COMEDI32_CHANINFO _IOR(CIO, 3, struct comedi32_chaninfo_struct) |
35 | #define COMEDI32_RANGEINFO _IOR(CIO, 8, struct comedi32_rangeinfo_struct) | |
ed9eccbe DS |
36 | /* N.B. COMEDI32_CMD and COMEDI_CMD ought to use _IOWR, not _IOR. |
37 | * It's too late to change it now, but it only affects the command number. */ | |
01914923 | 38 | #define COMEDI32_CMD _IOR(CIO, 9, struct comedi32_cmd_struct) |
ed9eccbe DS |
39 | /* N.B. COMEDI32_CMDTEST and COMEDI_CMDTEST ought to use _IOWR, not _IOR. |
40 | * It's too late to change it now, but it only affects the command number. */ | |
01914923 GKH |
41 | #define COMEDI32_CMDTEST _IOR(CIO, 10, struct comedi32_cmd_struct) |
42 | #define COMEDI32_INSNLIST _IOR(CIO, 11, struct comedi32_insnlist_struct) | |
43 | #define COMEDI32_INSN _IOR(CIO, 12, struct comedi32_insn_struct) | |
ed9eccbe | 44 | |
bf8db92e | 45 | struct comedi32_chaninfo_struct { |
ed9eccbe | 46 | unsigned int subdev; |
790c5541 | 47 | compat_uptr_t maxdata_list; /* 32-bit 'unsigned int *' */ |
0a85b6f0 | 48 | compat_uptr_t flaglist; /* 32-bit 'unsigned int *' */ |
ed9eccbe DS |
49 | compat_uptr_t rangelist; /* 32-bit 'unsigned int *' */ |
50 | unsigned int unused[4]; | |
bf8db92e | 51 | }; |
ed9eccbe | 52 | |
bf8db92e | 53 | struct comedi32_rangeinfo_struct { |
ed9eccbe DS |
54 | unsigned int range_type; |
55 | compat_uptr_t range_ptr; /* 32-bit 'void *' */ | |
bf8db92e | 56 | }; |
ed9eccbe | 57 | |
bf8db92e | 58 | struct comedi32_cmd_struct { |
ed9eccbe DS |
59 | unsigned int subdev; |
60 | unsigned int flags; | |
61 | unsigned int start_src; | |
62 | unsigned int start_arg; | |
63 | unsigned int scan_begin_src; | |
64 | unsigned int scan_begin_arg; | |
65 | unsigned int convert_src; | |
66 | unsigned int convert_arg; | |
67 | unsigned int scan_end_src; | |
68 | unsigned int scan_end_arg; | |
69 | unsigned int stop_src; | |
70 | unsigned int stop_arg; | |
0a85b6f0 | 71 | compat_uptr_t chanlist; /* 32-bit 'unsigned int *' */ |
ed9eccbe | 72 | unsigned int chanlist_len; |
0a85b6f0 | 73 | compat_uptr_t data; /* 32-bit 'short *' */ |
ed9eccbe | 74 | unsigned int data_len; |
bf8db92e | 75 | }; |
ed9eccbe | 76 | |
bf8db92e | 77 | struct comedi32_insn_struct { |
ed9eccbe DS |
78 | unsigned int insn; |
79 | unsigned int n; | |
0a85b6f0 | 80 | compat_uptr_t data; /* 32-bit 'unsigned int *' */ |
ed9eccbe DS |
81 | unsigned int subdev; |
82 | unsigned int chanspec; | |
83 | unsigned int unused[3]; | |
bf8db92e | 84 | }; |
ed9eccbe | 85 | |
bf8db92e | 86 | struct comedi32_insnlist_struct { |
ed9eccbe | 87 | unsigned int n_insns; |
0a85b6f0 | 88 | compat_uptr_t insns; /* 32-bit 'struct comedi_insn *' */ |
bf8db92e | 89 | }; |
ed9eccbe DS |
90 | |
91 | /* Handle translated ioctl. */ | |
92 | static int translated_ioctl(struct file *file, unsigned int cmd, | |
0a85b6f0 | 93 | unsigned long arg) |
ed9eccbe | 94 | { |
82675f35 | 95 | if (!file->f_op) |
ed9eccbe | 96 | return -ENOTTY; |
82675f35 | 97 | |
a6279bc9 SB |
98 | if (file->f_op->unlocked_ioctl) |
99 | return file->f_op->unlocked_ioctl(file, cmd, arg); | |
100 | ||
ed9eccbe DS |
101 | return -ENOTTY; |
102 | } | |
103 | ||
104 | /* Handle 32-bit COMEDI_CHANINFO ioctl. */ | |
105 | static int compat_chaninfo(struct file *file, unsigned long arg) | |
106 | { | |
01914923 | 107 | struct comedi_chaninfo __user *chaninfo; |
bf8db92e | 108 | struct comedi32_chaninfo_struct __user *chaninfo32; |
ed9eccbe DS |
109 | int err; |
110 | union { | |
111 | unsigned int uint; | |
112 | compat_uptr_t uptr; | |
113 | } temp; | |
114 | ||
115 | chaninfo32 = compat_ptr(arg); | |
116 | chaninfo = compat_alloc_user_space(sizeof(*chaninfo)); | |
117 | ||
118 | /* Copy chaninfo structure. Ignore unused members. */ | |
119 | if (!access_ok(VERIFY_READ, chaninfo32, sizeof(*chaninfo32)) | |
0a85b6f0 | 120 | || !access_ok(VERIFY_WRITE, chaninfo, sizeof(*chaninfo))) { |
ed9eccbe DS |
121 | return -EFAULT; |
122 | } | |
123 | err = 0; | |
124 | err |= __get_user(temp.uint, &chaninfo32->subdev); | |
125 | err |= __put_user(temp.uint, &chaninfo->subdev); | |
126 | err |= __get_user(temp.uptr, &chaninfo32->maxdata_list); | |
127 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->maxdata_list); | |
128 | err |= __get_user(temp.uptr, &chaninfo32->flaglist); | |
129 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->flaglist); | |
130 | err |= __get_user(temp.uptr, &chaninfo32->rangelist); | |
131 | err |= __put_user(compat_ptr(temp.uptr), &chaninfo->rangelist); | |
82675f35 | 132 | if (err) |
ed9eccbe | 133 | return -EFAULT; |
ed9eccbe DS |
134 | |
135 | return translated_ioctl(file, COMEDI_CHANINFO, (unsigned long)chaninfo); | |
136 | } | |
137 | ||
138 | /* Handle 32-bit COMEDI_RANGEINFO ioctl. */ | |
139 | static int compat_rangeinfo(struct file *file, unsigned long arg) | |
140 | { | |
d0a353f6 | 141 | struct comedi_rangeinfo __user *rangeinfo; |
bf8db92e | 142 | struct comedi32_rangeinfo_struct __user *rangeinfo32; |
ed9eccbe DS |
143 | int err; |
144 | union { | |
145 | unsigned int uint; | |
146 | compat_uptr_t uptr; | |
147 | } temp; | |
148 | ||
149 | rangeinfo32 = compat_ptr(arg); | |
150 | rangeinfo = compat_alloc_user_space(sizeof(*rangeinfo)); | |
151 | ||
152 | /* Copy rangeinfo structure. */ | |
153 | if (!access_ok(VERIFY_READ, rangeinfo32, sizeof(*rangeinfo32)) | |
0a85b6f0 | 154 | || !access_ok(VERIFY_WRITE, rangeinfo, sizeof(*rangeinfo))) { |
ed9eccbe DS |
155 | return -EFAULT; |
156 | } | |
157 | err = 0; | |
158 | err |= __get_user(temp.uint, &rangeinfo32->range_type); | |
159 | err |= __put_user(temp.uint, &rangeinfo->range_type); | |
160 | err |= __get_user(temp.uptr, &rangeinfo32->range_ptr); | |
161 | err |= __put_user(compat_ptr(temp.uptr), &rangeinfo->range_ptr); | |
82675f35 | 162 | if (err) |
ed9eccbe | 163 | return -EFAULT; |
ed9eccbe DS |
164 | |
165 | return translated_ioctl(file, COMEDI_RANGEINFO, | |
0a85b6f0 | 166 | (unsigned long)rangeinfo); |
ed9eccbe DS |
167 | } |
168 | ||
169 | /* Copy 32-bit cmd structure to native cmd structure. */ | |
f3662436 SW |
170 | static int get_compat_cmd(struct comedi_cmd __user *cmd, |
171 | struct comedi32_cmd_struct __user *cmd32) | |
ed9eccbe DS |
172 | { |
173 | int err; | |
174 | union { | |
175 | unsigned int uint; | |
176 | compat_uptr_t uptr; | |
177 | } temp; | |
178 | ||
179 | /* Copy cmd structure. */ | |
180 | if (!access_ok(VERIFY_READ, cmd32, sizeof(*cmd32)) | |
0a85b6f0 | 181 | || !access_ok(VERIFY_WRITE, cmd, sizeof(*cmd))) { |
ed9eccbe DS |
182 | return -EFAULT; |
183 | } | |
184 | err = 0; | |
185 | err |= __get_user(temp.uint, &cmd32->subdev); | |
186 | err |= __put_user(temp.uint, &cmd->subdev); | |
187 | err |= __get_user(temp.uint, &cmd32->flags); | |
188 | err |= __put_user(temp.uint, &cmd->flags); | |
189 | err |= __get_user(temp.uint, &cmd32->start_src); | |
190 | err |= __put_user(temp.uint, &cmd->start_src); | |
191 | err |= __get_user(temp.uint, &cmd32->start_arg); | |
192 | err |= __put_user(temp.uint, &cmd->start_arg); | |
193 | err |= __get_user(temp.uint, &cmd32->scan_begin_src); | |
194 | err |= __put_user(temp.uint, &cmd->scan_begin_src); | |
195 | err |= __get_user(temp.uint, &cmd32->scan_begin_arg); | |
196 | err |= __put_user(temp.uint, &cmd->scan_begin_arg); | |
197 | err |= __get_user(temp.uint, &cmd32->convert_src); | |
198 | err |= __put_user(temp.uint, &cmd->convert_src); | |
199 | err |= __get_user(temp.uint, &cmd32->convert_arg); | |
200 | err |= __put_user(temp.uint, &cmd->convert_arg); | |
201 | err |= __get_user(temp.uint, &cmd32->scan_end_src); | |
202 | err |= __put_user(temp.uint, &cmd->scan_end_src); | |
203 | err |= __get_user(temp.uint, &cmd32->scan_end_arg); | |
204 | err |= __put_user(temp.uint, &cmd->scan_end_arg); | |
205 | err |= __get_user(temp.uint, &cmd32->stop_src); | |
206 | err |= __put_user(temp.uint, &cmd->stop_src); | |
207 | err |= __get_user(temp.uint, &cmd32->stop_arg); | |
208 | err |= __put_user(temp.uint, &cmd->stop_arg); | |
209 | err |= __get_user(temp.uptr, &cmd32->chanlist); | |
210 | err |= __put_user(compat_ptr(temp.uptr), &cmd->chanlist); | |
211 | err |= __get_user(temp.uint, &cmd32->chanlist_len); | |
212 | err |= __put_user(temp.uint, &cmd->chanlist_len); | |
213 | err |= __get_user(temp.uptr, &cmd32->data); | |
214 | err |= __put_user(compat_ptr(temp.uptr), &cmd->data); | |
215 | err |= __get_user(temp.uint, &cmd32->data_len); | |
216 | err |= __put_user(temp.uint, &cmd->data_len); | |
217 | return err ? -EFAULT : 0; | |
218 | } | |
219 | ||
220 | /* Copy native cmd structure to 32-bit cmd structure. */ | |
f3662436 SW |
221 | static int put_compat_cmd(struct comedi32_cmd_struct __user *cmd32, |
222 | struct comedi_cmd __user *cmd) | |
ed9eccbe DS |
223 | { |
224 | int err; | |
225 | unsigned int temp; | |
226 | ||
227 | /* Copy back most of cmd structure. */ | |
228 | /* Assume the pointer values are already valid. */ | |
229 | /* (Could use ptr_to_compat() to set them, but that wasn't implemented | |
230 | * until kernel version 2.6.11.) */ | |
231 | if (!access_ok(VERIFY_READ, cmd, sizeof(*cmd)) | |
0a85b6f0 | 232 | || !access_ok(VERIFY_WRITE, cmd32, sizeof(*cmd32))) { |
ed9eccbe DS |
233 | return -EFAULT; |
234 | } | |
235 | err = 0; | |
236 | err |= __get_user(temp, &cmd->subdev); | |
237 | err |= __put_user(temp, &cmd32->subdev); | |
238 | err |= __get_user(temp, &cmd->flags); | |
239 | err |= __put_user(temp, &cmd32->flags); | |
240 | err |= __get_user(temp, &cmd->start_src); | |
241 | err |= __put_user(temp, &cmd32->start_src); | |
242 | err |= __get_user(temp, &cmd->start_arg); | |
243 | err |= __put_user(temp, &cmd32->start_arg); | |
244 | err |= __get_user(temp, &cmd->scan_begin_src); | |
245 | err |= __put_user(temp, &cmd32->scan_begin_src); | |
246 | err |= __get_user(temp, &cmd->scan_begin_arg); | |
247 | err |= __put_user(temp, &cmd32->scan_begin_arg); | |
248 | err |= __get_user(temp, &cmd->convert_src); | |
249 | err |= __put_user(temp, &cmd32->convert_src); | |
250 | err |= __get_user(temp, &cmd->convert_arg); | |
251 | err |= __put_user(temp, &cmd32->convert_arg); | |
252 | err |= __get_user(temp, &cmd->scan_end_src); | |
253 | err |= __put_user(temp, &cmd32->scan_end_src); | |
254 | err |= __get_user(temp, &cmd->scan_end_arg); | |
255 | err |= __put_user(temp, &cmd32->scan_end_arg); | |
256 | err |= __get_user(temp, &cmd->stop_src); | |
257 | err |= __put_user(temp, &cmd32->stop_src); | |
258 | err |= __get_user(temp, &cmd->stop_arg); | |
259 | err |= __put_user(temp, &cmd32->stop_arg); | |
260 | /* Assume chanlist pointer is unchanged. */ | |
261 | err |= __get_user(temp, &cmd->chanlist_len); | |
262 | err |= __put_user(temp, &cmd32->chanlist_len); | |
263 | /* Assume data pointer is unchanged. */ | |
264 | err |= __get_user(temp, &cmd->data_len); | |
265 | err |= __put_user(temp, &cmd32->data_len); | |
266 | return err ? -EFAULT : 0; | |
267 | } | |
268 | ||
269 | /* Handle 32-bit COMEDI_CMD ioctl. */ | |
270 | static int compat_cmd(struct file *file, unsigned long arg) | |
271 | { | |
ea6d0d4c | 272 | struct comedi_cmd __user *cmd; |
bf8db92e | 273 | struct comedi32_cmd_struct __user *cmd32; |
ed9eccbe DS |
274 | int rc; |
275 | ||
276 | cmd32 = compat_ptr(arg); | |
277 | cmd = compat_alloc_user_space(sizeof(*cmd)); | |
278 | ||
279 | rc = get_compat_cmd(cmd, cmd32); | |
82675f35 | 280 | if (rc) |
ed9eccbe | 281 | return rc; |
ed9eccbe DS |
282 | |
283 | return translated_ioctl(file, COMEDI_CMD, (unsigned long)cmd); | |
284 | } | |
285 | ||
286 | /* Handle 32-bit COMEDI_CMDTEST ioctl. */ | |
287 | static int compat_cmdtest(struct file *file, unsigned long arg) | |
288 | { | |
ea6d0d4c | 289 | struct comedi_cmd __user *cmd; |
bf8db92e | 290 | struct comedi32_cmd_struct __user *cmd32; |
ed9eccbe DS |
291 | int rc, err; |
292 | ||
293 | cmd32 = compat_ptr(arg); | |
294 | cmd = compat_alloc_user_space(sizeof(*cmd)); | |
295 | ||
296 | rc = get_compat_cmd(cmd, cmd32); | |
82675f35 | 297 | if (rc) |
ed9eccbe | 298 | return rc; |
ed9eccbe DS |
299 | |
300 | rc = translated_ioctl(file, COMEDI_CMDTEST, (unsigned long)cmd); | |
82675f35 | 301 | if (rc < 0) |
ed9eccbe | 302 | return rc; |
ed9eccbe DS |
303 | |
304 | err = put_compat_cmd(cmd32, cmd); | |
82675f35 | 305 | if (err) |
ed9eccbe | 306 | rc = err; |
82675f35 | 307 | |
ed9eccbe DS |
308 | return rc; |
309 | } | |
310 | ||
311 | /* Copy 32-bit insn structure to native insn structure. */ | |
f3662436 SW |
312 | static int get_compat_insn(struct comedi_insn __user *insn, |
313 | struct comedi32_insn_struct __user *insn32) | |
ed9eccbe DS |
314 | { |
315 | int err; | |
316 | union { | |
317 | unsigned int uint; | |
318 | compat_uptr_t uptr; | |
319 | } temp; | |
320 | ||
321 | /* Copy insn structure. Ignore the unused members. */ | |
322 | err = 0; | |
323 | if (!access_ok(VERIFY_READ, insn32, sizeof(*insn32)) | |
0a85b6f0 | 324 | || !access_ok(VERIFY_WRITE, insn, sizeof(*insn))) |
ed9eccbe | 325 | return -EFAULT; |
82675f35 | 326 | |
ed9eccbe DS |
327 | err |= __get_user(temp.uint, &insn32->insn); |
328 | err |= __put_user(temp.uint, &insn->insn); | |
329 | err |= __get_user(temp.uint, &insn32->n); | |
330 | err |= __put_user(temp.uint, &insn->n); | |
331 | err |= __get_user(temp.uptr, &insn32->data); | |
332 | err |= __put_user(compat_ptr(temp.uptr), &insn->data); | |
333 | err |= __get_user(temp.uint, &insn32->subdev); | |
334 | err |= __put_user(temp.uint, &insn->subdev); | |
335 | err |= __get_user(temp.uint, &insn32->chanspec); | |
336 | err |= __put_user(temp.uint, &insn->chanspec); | |
337 | return err ? -EFAULT : 0; | |
338 | } | |
339 | ||
340 | /* Handle 32-bit COMEDI_INSNLIST ioctl. */ | |
341 | static int compat_insnlist(struct file *file, unsigned long arg) | |
342 | { | |
343 | struct combined_insnlist { | |
da613f4f | 344 | struct comedi_insnlist insnlist; |
90035c08 | 345 | struct comedi_insn insn[1]; |
ed9eccbe | 346 | } __user *s; |
bf8db92e BP |
347 | struct comedi32_insnlist_struct __user *insnlist32; |
348 | struct comedi32_insn_struct __user *insn32; | |
ed9eccbe DS |
349 | compat_uptr_t uptr; |
350 | unsigned int n_insns, n; | |
351 | int err, rc; | |
352 | ||
353 | insnlist32 = compat_ptr(arg); | |
354 | ||
355 | /* Get 32-bit insnlist structure. */ | |
f3662436 | 356 | if (!access_ok(VERIFY_READ, insnlist32, sizeof(*insnlist32))) |
ed9eccbe | 357 | return -EFAULT; |
f3662436 | 358 | |
ed9eccbe DS |
359 | err = 0; |
360 | err |= __get_user(n_insns, &insnlist32->n_insns); | |
361 | err |= __get_user(uptr, &insnlist32->insns); | |
362 | insn32 = compat_ptr(uptr); | |
82675f35 | 363 | if (err) |
ed9eccbe | 364 | return -EFAULT; |
ed9eccbe DS |
365 | |
366 | /* Allocate user memory to copy insnlist and insns into. */ | |
367 | s = compat_alloc_user_space(offsetof(struct combined_insnlist, | |
0a85b6f0 | 368 | insn[n_insns])); |
ed9eccbe DS |
369 | |
370 | /* Set native insnlist structure. */ | |
f3662436 | 371 | if (!access_ok(VERIFY_WRITE, &s->insnlist, sizeof(s->insnlist))) |
ed9eccbe | 372 | return -EFAULT; |
f3662436 | 373 | |
ed9eccbe DS |
374 | err |= __put_user(n_insns, &s->insnlist.n_insns); |
375 | err |= __put_user(&s->insn[0], &s->insnlist.insns); | |
82675f35 | 376 | if (err) |
ed9eccbe | 377 | return -EFAULT; |
ed9eccbe DS |
378 | |
379 | /* Copy insn structures. */ | |
380 | for (n = 0; n < n_insns; n++) { | |
381 | rc = get_compat_insn(&s->insn[n], &insn32[n]); | |
82675f35 | 382 | if (rc) |
ed9eccbe | 383 | return rc; |
ed9eccbe DS |
384 | } |
385 | ||
386 | return translated_ioctl(file, COMEDI_INSNLIST, | |
0a85b6f0 | 387 | (unsigned long)&s->insnlist); |
ed9eccbe DS |
388 | } |
389 | ||
390 | /* Handle 32-bit COMEDI_INSN ioctl. */ | |
391 | static int compat_insn(struct file *file, unsigned long arg) | |
392 | { | |
90035c08 | 393 | struct comedi_insn __user *insn; |
bf8db92e | 394 | struct comedi32_insn_struct __user *insn32; |
ed9eccbe DS |
395 | int rc; |
396 | ||
397 | insn32 = compat_ptr(arg); | |
398 | insn = compat_alloc_user_space(sizeof(*insn)); | |
399 | ||
400 | rc = get_compat_insn(insn, insn32); | |
82675f35 | 401 | if (rc) |
ed9eccbe | 402 | return rc; |
ed9eccbe DS |
403 | |
404 | return translated_ioctl(file, COMEDI_INSN, (unsigned long)insn); | |
405 | } | |
406 | ||
407 | /* Process untranslated ioctl. */ | |
408 | /* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */ | |
409 | static inline int raw_ioctl(struct file *file, unsigned int cmd, | |
0a85b6f0 | 410 | unsigned long arg) |
ed9eccbe DS |
411 | { |
412 | int rc; | |
413 | ||
414 | switch (cmd) { | |
415 | case COMEDI_DEVCONFIG: | |
416 | case COMEDI_DEVINFO: | |
417 | case COMEDI_SUBDINFO: | |
418 | case COMEDI_BUFCONFIG: | |
419 | case COMEDI_BUFINFO: | |
420 | /* Just need to translate the pointer argument. */ | |
421 | arg = (unsigned long)compat_ptr(arg); | |
422 | rc = translated_ioctl(file, cmd, arg); | |
423 | break; | |
424 | case COMEDI_LOCK: | |
425 | case COMEDI_UNLOCK: | |
426 | case COMEDI_CANCEL: | |
427 | case COMEDI_POLL: | |
428 | /* No translation needed. */ | |
429 | rc = translated_ioctl(file, cmd, arg); | |
430 | break; | |
431 | case COMEDI32_CHANINFO: | |
432 | rc = compat_chaninfo(file, arg); | |
433 | break; | |
434 | case COMEDI32_RANGEINFO: | |
435 | rc = compat_rangeinfo(file, arg); | |
436 | break; | |
437 | case COMEDI32_CMD: | |
438 | rc = compat_cmd(file, arg); | |
439 | break; | |
440 | case COMEDI32_CMDTEST: | |
441 | rc = compat_cmdtest(file, arg); | |
442 | break; | |
443 | case COMEDI32_INSNLIST: | |
444 | rc = compat_insnlist(file, arg); | |
445 | break; | |
446 | case COMEDI32_INSN: | |
447 | rc = compat_insn(file, arg); | |
448 | break; | |
449 | default: | |
450 | rc = -ENOIOCTLCMD; | |
451 | break; | |
452 | } | |
453 | return rc; | |
454 | } | |
455 | ||
ed9eccbe DS |
456 | /* compat_ioctl file operation. */ |
457 | /* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */ | |
0a85b6f0 | 458 | long comedi_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
ed9eccbe DS |
459 | { |
460 | return raw_ioctl(file, cmd, arg); | |
461 | } | |
462 | ||
0a85b6f0 | 463 | #endif /* CONFIG_COMPAT */ |