Commit | Line | Data |
---|---|---|
c0efd232 LP |
1 | /* |
2 | * uvc_v4l2.c -- USB Video Class driver - V4L2 API | |
3 | * | |
11fc5baf LP |
4 | * Copyright (C) 2005-2010 |
5 | * Laurent Pinchart (laurent.pinchart@ideasonboard.com) | |
c0efd232 LP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
1a5e4c86 | 14 | #include <linux/compat.h> |
c0efd232 | 15 | #include <linux/kernel.h> |
c0efd232 LP |
16 | #include <linux/list.h> |
17 | #include <linux/module.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
c0efd232 LP |
19 | #include <linux/usb.h> |
20 | #include <linux/videodev2.h> | |
21 | #include <linux/vmalloc.h> | |
22 | #include <linux/mm.h> | |
23 | #include <linux/wait.h> | |
60063497 | 24 | #include <linux/atomic.h> |
c0efd232 LP |
25 | |
26 | #include <media/v4l2-common.h> | |
b4012002 HG |
27 | #include <media/v4l2-ctrls.h> |
28 | #include <media/v4l2-event.h> | |
35ea11ff | 29 | #include <media/v4l2-ioctl.h> |
c0efd232 LP |
30 | |
31 | #include "uvcvideo.h" | |
32 | ||
561474c2 LP |
33 | /* ------------------------------------------------------------------------ |
34 | * UVC ioctls | |
35 | */ | |
ba2fa996 | 36 | static int uvc_ioctl_ctrl_map(struct uvc_video_chain *chain, |
227bd5b3 | 37 | struct uvc_xu_control_mapping *xmap) |
561474c2 LP |
38 | { |
39 | struct uvc_control_mapping *map; | |
40 | unsigned int size; | |
41 | int ret; | |
42 | ||
43 | map = kzalloc(sizeof *map, GFP_KERNEL); | |
44 | if (map == NULL) | |
45 | return -ENOMEM; | |
46 | ||
47 | map->id = xmap->id; | |
48 | memcpy(map->name, xmap->name, sizeof map->name); | |
49 | memcpy(map->entity, xmap->entity, sizeof map->entity); | |
50 | map->selector = xmap->selector; | |
51 | map->size = xmap->size; | |
52 | map->offset = xmap->offset; | |
53 | map->v4l2_type = xmap->v4l2_type; | |
54 | map->data_type = xmap->data_type; | |
55 | ||
56 | switch (xmap->v4l2_type) { | |
57 | case V4L2_CTRL_TYPE_INTEGER: | |
58 | case V4L2_CTRL_TYPE_BOOLEAN: | |
59 | case V4L2_CTRL_TYPE_BUTTON: | |
60 | break; | |
61 | ||
62 | case V4L2_CTRL_TYPE_MENU: | |
806e23e9 HC |
63 | /* Prevent excessive memory consumption, as well as integer |
64 | * overflows. | |
65 | */ | |
66 | if (xmap->menu_count == 0 || | |
67 | xmap->menu_count > UVC_MAX_CONTROL_MENU_ENTRIES) { | |
68 | ret = -EINVAL; | |
69 | goto done; | |
70 | } | |
71 | ||
561474c2 LP |
72 | size = xmap->menu_count * sizeof(*map->menu_info); |
73 | map->menu_info = kmalloc(size, GFP_KERNEL); | |
74 | if (map->menu_info == NULL) { | |
75 | ret = -ENOMEM; | |
76 | goto done; | |
77 | } | |
78 | ||
79 | if (copy_from_user(map->menu_info, xmap->menu_info, size)) { | |
80 | ret = -EFAULT; | |
81 | goto done; | |
82 | } | |
83 | ||
84 | map->menu_count = xmap->menu_count; | |
85 | break; | |
86 | ||
87 | default: | |
ba2fa996 LP |
88 | uvc_trace(UVC_TRACE_CONTROL, "Unsupported V4L2 control type " |
89 | "%u.\n", xmap->v4l2_type); | |
7a286cc1 | 90 | ret = -ENOTTY; |
561474c2 LP |
91 | goto done; |
92 | } | |
93 | ||
ba2fa996 | 94 | ret = uvc_ctrl_add_mapping(chain, map); |
561474c2 LP |
95 | |
96 | done: | |
ba2fa996 LP |
97 | kfree(map->menu_info); |
98 | kfree(map); | |
561474c2 LP |
99 | |
100 | return ret; | |
101 | } | |
102 | ||
c0efd232 LP |
103 | /* ------------------------------------------------------------------------ |
104 | * V4L2 interface | |
105 | */ | |
106 | ||
c0efd232 LP |
107 | /* |
108 | * Find the frame interval closest to the requested frame interval for the | |
109 | * given frame format and size. This should be done by the device as part of | |
110 | * the Video Probe and Commit negotiation, but some hardware don't implement | |
111 | * that feature. | |
112 | */ | |
113 | static __u32 uvc_try_frame_interval(struct uvc_frame *frame, __u32 interval) | |
114 | { | |
115 | unsigned int i; | |
116 | ||
117 | if (frame->bFrameIntervalType) { | |
118 | __u32 best = -1, dist; | |
119 | ||
120 | for (i = 0; i < frame->bFrameIntervalType; ++i) { | |
121 | dist = interval > frame->dwFrameInterval[i] | |
122 | ? interval - frame->dwFrameInterval[i] | |
123 | : frame->dwFrameInterval[i] - interval; | |
124 | ||
125 | if (dist > best) | |
126 | break; | |
127 | ||
128 | best = dist; | |
129 | } | |
130 | ||
131 | interval = frame->dwFrameInterval[i-1]; | |
132 | } else { | |
133 | const __u32 min = frame->dwFrameInterval[0]; | |
134 | const __u32 max = frame->dwFrameInterval[1]; | |
135 | const __u32 step = frame->dwFrameInterval[2]; | |
136 | ||
137 | interval = min + (interval - min + step/2) / step * step; | |
138 | if (interval > max) | |
139 | interval = max; | |
140 | } | |
141 | ||
142 | return interval; | |
143 | } | |
144 | ||
35f02a68 | 145 | static int uvc_v4l2_try_format(struct uvc_streaming *stream, |
c0efd232 LP |
146 | struct v4l2_format *fmt, struct uvc_streaming_control *probe, |
147 | struct uvc_format **uvc_format, struct uvc_frame **uvc_frame) | |
148 | { | |
149 | struct uvc_format *format = NULL; | |
150 | struct uvc_frame *frame = NULL; | |
151 | __u16 rw, rh; | |
152 | unsigned int d, maxd; | |
153 | unsigned int i; | |
154 | __u32 interval; | |
155 | int ret = 0; | |
156 | __u8 *fcc; | |
157 | ||
35f02a68 | 158 | if (fmt->type != stream->type) |
c0efd232 LP |
159 | return -EINVAL; |
160 | ||
161 | fcc = (__u8 *)&fmt->fmt.pix.pixelformat; | |
162 | uvc_trace(UVC_TRACE_FORMAT, "Trying format 0x%08x (%c%c%c%c): %ux%u.\n", | |
163 | fmt->fmt.pix.pixelformat, | |
164 | fcc[0], fcc[1], fcc[2], fcc[3], | |
165 | fmt->fmt.pix.width, fmt->fmt.pix.height); | |
166 | ||
815adc46 LP |
167 | /* Check if the hardware supports the requested format, use the default |
168 | * format otherwise. | |
169 | */ | |
35f02a68 LP |
170 | for (i = 0; i < stream->nformats; ++i) { |
171 | format = &stream->format[i]; | |
c0efd232 LP |
172 | if (format->fcc == fmt->fmt.pix.pixelformat) |
173 | break; | |
174 | } | |
175 | ||
815adc46 LP |
176 | if (i == stream->nformats) { |
177 | format = stream->def_format; | |
178 | fmt->fmt.pix.pixelformat = format->fcc; | |
c0efd232 LP |
179 | } |
180 | ||
181 | /* Find the closest image size. The distance between image sizes is | |
182 | * the size in pixels of the non-overlapping regions between the | |
183 | * requested size and the frame-specified size. | |
184 | */ | |
185 | rw = fmt->fmt.pix.width; | |
186 | rh = fmt->fmt.pix.height; | |
187 | maxd = (unsigned int)-1; | |
188 | ||
189 | for (i = 0; i < format->nframes; ++i) { | |
190 | __u16 w = format->frame[i].wWidth; | |
191 | __u16 h = format->frame[i].wHeight; | |
192 | ||
193 | d = min(w, rw) * min(h, rh); | |
194 | d = w*h + rw*rh - 2*d; | |
195 | if (d < maxd) { | |
196 | maxd = d; | |
197 | frame = &format->frame[i]; | |
198 | } | |
199 | ||
200 | if (maxd == 0) | |
201 | break; | |
202 | } | |
203 | ||
204 | if (frame == NULL) { | |
205 | uvc_trace(UVC_TRACE_FORMAT, "Unsupported size %ux%u.\n", | |
206 | fmt->fmt.pix.width, fmt->fmt.pix.height); | |
207 | return -EINVAL; | |
208 | } | |
209 | ||
210 | /* Use the default frame interval. */ | |
211 | interval = frame->dwDefaultFrameInterval; | |
212 | uvc_trace(UVC_TRACE_FORMAT, "Using default frame interval %u.%u us " | |
213 | "(%u.%u fps).\n", interval/10, interval%10, 10000000/interval, | |
214 | (100000000/interval)%10); | |
215 | ||
216 | /* Set the format index, frame index and frame interval. */ | |
217 | memset(probe, 0, sizeof *probe); | |
218 | probe->bmHint = 1; /* dwFrameInterval */ | |
219 | probe->bFormatIndex = format->index; | |
220 | probe->bFrameIndex = frame->bFrameIndex; | |
221 | probe->dwFrameInterval = uvc_try_frame_interval(frame, interval); | |
222 | /* Some webcams stall the probe control set request when the | |
223 | * dwMaxVideoFrameSize field is set to zero. The UVC specification | |
224 | * clearly states that the field is read-only from the host, so this | |
225 | * is a webcam bug. Set dwMaxVideoFrameSize to the value reported by | |
226 | * the webcam to work around the problem. | |
227 | * | |
228 | * The workaround could probably be enabled for all webcams, so the | |
229 | * quirk can be removed if needed. It's currently useful to detect | |
230 | * webcam bugs and fix them before they hit the market (providing | |
231 | * developers test their webcams with the Linux driver as well as with | |
232 | * the Windows driver). | |
233 | */ | |
6947756d | 234 | mutex_lock(&stream->mutex); |
35f02a68 | 235 | if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS) |
c0efd232 | 236 | probe->dwMaxVideoFrameSize = |
35f02a68 | 237 | stream->ctrl.dwMaxVideoFrameSize; |
c0efd232 | 238 | |
2c2d264b | 239 | /* Probe the device. */ |
35f02a68 | 240 | ret = uvc_probe_video(stream, probe); |
6947756d | 241 | mutex_unlock(&stream->mutex); |
35f02a68 | 242 | if (ret < 0) |
c0efd232 LP |
243 | goto done; |
244 | ||
245 | fmt->fmt.pix.width = frame->wWidth; | |
246 | fmt->fmt.pix.height = frame->wHeight; | |
247 | fmt->fmt.pix.field = V4L2_FIELD_NONE; | |
248 | fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8; | |
249 | fmt->fmt.pix.sizeimage = probe->dwMaxVideoFrameSize; | |
250 | fmt->fmt.pix.colorspace = format->colorspace; | |
251 | fmt->fmt.pix.priv = 0; | |
252 | ||
253 | if (uvc_format != NULL) | |
254 | *uvc_format = format; | |
255 | if (uvc_frame != NULL) | |
256 | *uvc_frame = frame; | |
257 | ||
258 | done: | |
259 | return ret; | |
260 | } | |
261 | ||
35f02a68 | 262 | static int uvc_v4l2_get_format(struct uvc_streaming *stream, |
c0efd232 LP |
263 | struct v4l2_format *fmt) |
264 | { | |
6947756d LP |
265 | struct uvc_format *format; |
266 | struct uvc_frame *frame; | |
267 | int ret = 0; | |
c0efd232 | 268 | |
35f02a68 | 269 | if (fmt->type != stream->type) |
c0efd232 LP |
270 | return -EINVAL; |
271 | ||
6947756d LP |
272 | mutex_lock(&stream->mutex); |
273 | format = stream->cur_format; | |
274 | frame = stream->cur_frame; | |
275 | ||
276 | if (format == NULL || frame == NULL) { | |
277 | ret = -EINVAL; | |
278 | goto done; | |
279 | } | |
c0efd232 LP |
280 | |
281 | fmt->fmt.pix.pixelformat = format->fcc; | |
282 | fmt->fmt.pix.width = frame->wWidth; | |
283 | fmt->fmt.pix.height = frame->wHeight; | |
284 | fmt->fmt.pix.field = V4L2_FIELD_NONE; | |
285 | fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8; | |
35f02a68 | 286 | fmt->fmt.pix.sizeimage = stream->ctrl.dwMaxVideoFrameSize; |
c0efd232 LP |
287 | fmt->fmt.pix.colorspace = format->colorspace; |
288 | fmt->fmt.pix.priv = 0; | |
289 | ||
6947756d LP |
290 | done: |
291 | mutex_unlock(&stream->mutex); | |
292 | return ret; | |
c0efd232 LP |
293 | } |
294 | ||
35f02a68 | 295 | static int uvc_v4l2_set_format(struct uvc_streaming *stream, |
c0efd232 LP |
296 | struct v4l2_format *fmt) |
297 | { | |
298 | struct uvc_streaming_control probe; | |
299 | struct uvc_format *format; | |
300 | struct uvc_frame *frame; | |
301 | int ret; | |
302 | ||
35f02a68 | 303 | if (fmt->type != stream->type) |
c0efd232 LP |
304 | return -EINVAL; |
305 | ||
35f02a68 | 306 | ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame); |
c0efd232 LP |
307 | if (ret < 0) |
308 | return ret; | |
309 | ||
6947756d LP |
310 | mutex_lock(&stream->mutex); |
311 | ||
312 | if (uvc_queue_allocated(&stream->queue)) { | |
313 | ret = -EBUSY; | |
314 | goto done; | |
315 | } | |
316 | ||
8c0d44e2 | 317 | stream->ctrl = probe; |
35f02a68 LP |
318 | stream->cur_format = format; |
319 | stream->cur_frame = frame; | |
c0efd232 | 320 | |
6947756d LP |
321 | done: |
322 | mutex_unlock(&stream->mutex); | |
323 | return ret; | |
c0efd232 LP |
324 | } |
325 | ||
35f02a68 | 326 | static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream, |
c0efd232 LP |
327 | struct v4l2_streamparm *parm) |
328 | { | |
329 | uint32_t numerator, denominator; | |
330 | ||
35f02a68 | 331 | if (parm->type != stream->type) |
c0efd232 LP |
332 | return -EINVAL; |
333 | ||
6947756d | 334 | mutex_lock(&stream->mutex); |
35f02a68 | 335 | numerator = stream->ctrl.dwFrameInterval; |
6947756d LP |
336 | mutex_unlock(&stream->mutex); |
337 | ||
c0efd232 LP |
338 | denominator = 10000000; |
339 | uvc_simplify_fraction(&numerator, &denominator, 8, 333); | |
340 | ||
341 | memset(parm, 0, sizeof *parm); | |
35f02a68 | 342 | parm->type = stream->type; |
ff924203 | 343 | |
35f02a68 | 344 | if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
ff924203 LP |
345 | parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; |
346 | parm->parm.capture.capturemode = 0; | |
347 | parm->parm.capture.timeperframe.numerator = numerator; | |
348 | parm->parm.capture.timeperframe.denominator = denominator; | |
349 | parm->parm.capture.extendedmode = 0; | |
350 | parm->parm.capture.readbuffers = 0; | |
351 | } else { | |
352 | parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME; | |
353 | parm->parm.output.outputmode = 0; | |
354 | parm->parm.output.timeperframe.numerator = numerator; | |
355 | parm->parm.output.timeperframe.denominator = denominator; | |
356 | } | |
c0efd232 LP |
357 | |
358 | return 0; | |
359 | } | |
360 | ||
35f02a68 | 361 | static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream, |
c0efd232 LP |
362 | struct v4l2_streamparm *parm) |
363 | { | |
c0efd232 | 364 | struct uvc_streaming_control probe; |
ff924203 | 365 | struct v4l2_fract timeperframe; |
c0efd232 LP |
366 | uint32_t interval; |
367 | int ret; | |
368 | ||
35f02a68 | 369 | if (parm->type != stream->type) |
c0efd232 LP |
370 | return -EINVAL; |
371 | ||
ff924203 LP |
372 | if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
373 | timeperframe = parm->parm.capture.timeperframe; | |
374 | else | |
375 | timeperframe = parm->parm.output.timeperframe; | |
376 | ||
ff924203 LP |
377 | interval = uvc_fraction_to_interval(timeperframe.numerator, |
378 | timeperframe.denominator); | |
c0efd232 | 379 | uvc_trace(UVC_TRACE_FORMAT, "Setting frame interval to %u/%u (%u).\n", |
ff924203 | 380 | timeperframe.numerator, timeperframe.denominator, interval); |
6947756d LP |
381 | |
382 | mutex_lock(&stream->mutex); | |
383 | ||
384 | if (uvc_queue_streaming(&stream->queue)) { | |
385 | mutex_unlock(&stream->mutex); | |
386 | return -EBUSY; | |
387 | } | |
388 | ||
8c0d44e2 | 389 | probe = stream->ctrl; |
6947756d LP |
390 | probe.dwFrameInterval = |
391 | uvc_try_frame_interval(stream->cur_frame, interval); | |
c0efd232 LP |
392 | |
393 | /* Probe the device with the new settings. */ | |
35f02a68 | 394 | ret = uvc_probe_video(stream, &probe); |
6947756d LP |
395 | if (ret < 0) { |
396 | mutex_unlock(&stream->mutex); | |
c0efd232 | 397 | return ret; |
6947756d | 398 | } |
c0efd232 | 399 | |
8c0d44e2 | 400 | stream->ctrl = probe; |
6947756d | 401 | mutex_unlock(&stream->mutex); |
c0efd232 LP |
402 | |
403 | /* Return the actual frame period. */ | |
ff924203 LP |
404 | timeperframe.numerator = probe.dwFrameInterval; |
405 | timeperframe.denominator = 10000000; | |
406 | uvc_simplify_fraction(&timeperframe.numerator, | |
407 | &timeperframe.denominator, 8, 333); | |
408 | ||
409 | if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
410 | parm->parm.capture.timeperframe = timeperframe; | |
411 | else | |
412 | parm->parm.output.timeperframe = timeperframe; | |
c0efd232 LP |
413 | |
414 | return 0; | |
415 | } | |
416 | ||
417 | /* ------------------------------------------------------------------------ | |
418 | * Privilege management | |
419 | */ | |
420 | ||
421 | /* | |
422 | * Privilege management is the multiple-open implementation basis. The current | |
423 | * implementation is completely transparent for the end-user and doesn't | |
424 | * require explicit use of the VIDIOC_G_PRIORITY and VIDIOC_S_PRIORITY ioctls. | |
425 | * Those ioctls enable finer control on the device (by making possible for a | |
426 | * user to request exclusive access to a device), but are not mature yet. | |
427 | * Switching to the V4L2 priority mechanism might be considered in the future | |
428 | * if this situation changes. | |
429 | * | |
430 | * Each open instance of a UVC device can either be in a privileged or | |
431 | * unprivileged state. Only a single instance can be in a privileged state at | |
2c2d264b | 432 | * a given time. Trying to perform an operation that requires privileges will |
c0efd232 | 433 | * automatically acquire the required privileges if possible, or return -EBUSY |
1a969d98 LP |
434 | * otherwise. Privileges are dismissed when closing the instance or when |
435 | * freeing the video buffers using VIDIOC_REQBUFS. | |
c0efd232 | 436 | * |
2c2d264b | 437 | * Operations that require privileges are: |
c0efd232 LP |
438 | * |
439 | * - VIDIOC_S_INPUT | |
440 | * - VIDIOC_S_PARM | |
441 | * - VIDIOC_S_FMT | |
c0efd232 LP |
442 | * - VIDIOC_REQBUFS |
443 | */ | |
444 | static int uvc_acquire_privileges(struct uvc_fh *handle) | |
445 | { | |
c0efd232 LP |
446 | /* Always succeed if the handle is already privileged. */ |
447 | if (handle->state == UVC_HANDLE_ACTIVE) | |
448 | return 0; | |
449 | ||
450 | /* Check if the device already has a privileged handle. */ | |
35f02a68 LP |
451 | if (atomic_inc_return(&handle->stream->active) != 1) { |
452 | atomic_dec(&handle->stream->active); | |
716fdee1 | 453 | return -EBUSY; |
c0efd232 LP |
454 | } |
455 | ||
456 | handle->state = UVC_HANDLE_ACTIVE; | |
716fdee1 | 457 | return 0; |
c0efd232 LP |
458 | } |
459 | ||
460 | static void uvc_dismiss_privileges(struct uvc_fh *handle) | |
461 | { | |
462 | if (handle->state == UVC_HANDLE_ACTIVE) | |
35f02a68 | 463 | atomic_dec(&handle->stream->active); |
c0efd232 LP |
464 | |
465 | handle->state = UVC_HANDLE_PASSIVE; | |
466 | } | |
467 | ||
468 | static int uvc_has_privileges(struct uvc_fh *handle) | |
469 | { | |
470 | return handle->state == UVC_HANDLE_ACTIVE; | |
471 | } | |
472 | ||
473 | /* ------------------------------------------------------------------------ | |
474 | * V4L2 file operations | |
475 | */ | |
476 | ||
bec43661 | 477 | static int uvc_v4l2_open(struct file *file) |
c0efd232 | 478 | { |
35f02a68 | 479 | struct uvc_streaming *stream; |
c0efd232 LP |
480 | struct uvc_fh *handle; |
481 | int ret = 0; | |
482 | ||
483 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n"); | |
35f02a68 | 484 | stream = video_drvdata(file); |
c0efd232 | 485 | |
716fdee1 LP |
486 | if (stream->dev->state & UVC_DEV_DISCONNECTED) |
487 | return -ENODEV; | |
c0efd232 | 488 | |
35f02a68 | 489 | ret = usb_autopm_get_interface(stream->dev->intf); |
c0efd232 | 490 | if (ret < 0) |
716fdee1 | 491 | return ret; |
c0efd232 LP |
492 | |
493 | /* Create the device handle. */ | |
494 | handle = kzalloc(sizeof *handle, GFP_KERNEL); | |
495 | if (handle == NULL) { | |
35f02a68 | 496 | usb_autopm_put_interface(stream->dev->intf); |
716fdee1 | 497 | return -ENOMEM; |
c0efd232 LP |
498 | } |
499 | ||
17706f56 LP |
500 | mutex_lock(&stream->dev->lock); |
501 | if (stream->dev->users == 0) { | |
502 | ret = uvc_status_start(stream->dev, GFP_KERNEL); | |
35f02a68 | 503 | if (ret < 0) { |
17706f56 | 504 | mutex_unlock(&stream->dev->lock); |
a82a45f6 | 505 | usb_autopm_put_interface(stream->dev->intf); |
04a37e0f | 506 | kfree(handle); |
716fdee1 | 507 | return ret; |
04a37e0f LP |
508 | } |
509 | } | |
510 | ||
17706f56 LP |
511 | stream->dev->users++; |
512 | mutex_unlock(&stream->dev->lock); | |
513 | ||
d8da7513 | 514 | v4l2_fh_init(&handle->vfh, &stream->vdev); |
b4012002 | 515 | v4l2_fh_add(&handle->vfh); |
8e113595 | 516 | handle->chain = stream->chain; |
35f02a68 | 517 | handle->stream = stream; |
c0efd232 LP |
518 | handle->state = UVC_HANDLE_PASSIVE; |
519 | file->private_data = handle; | |
520 | ||
716fdee1 | 521 | return 0; |
c0efd232 LP |
522 | } |
523 | ||
bec43661 | 524 | static int uvc_v4l2_release(struct file *file) |
c0efd232 | 525 | { |
abf84383 | 526 | struct uvc_fh *handle = file->private_data; |
35f02a68 | 527 | struct uvc_streaming *stream = handle->stream; |
c0efd232 LP |
528 | |
529 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n"); | |
530 | ||
531 | /* Only free resources if this is a privileged handle. */ | |
3f02de27 LP |
532 | if (uvc_has_privileges(handle)) |
533 | uvc_queue_release(&stream->queue); | |
c0efd232 LP |
534 | |
535 | /* Release the file handle. */ | |
536 | uvc_dismiss_privileges(handle); | |
b4012002 HG |
537 | v4l2_fh_del(&handle->vfh); |
538 | v4l2_fh_exit(&handle->vfh); | |
c0efd232 LP |
539 | kfree(handle); |
540 | file->private_data = NULL; | |
541 | ||
17706f56 LP |
542 | mutex_lock(&stream->dev->lock); |
543 | if (--stream->dev->users == 0) | |
35f02a68 | 544 | uvc_status_stop(stream->dev); |
17706f56 | 545 | mutex_unlock(&stream->dev->lock); |
04a37e0f | 546 | |
35f02a68 | 547 | usb_autopm_put_interface(stream->dev->intf); |
c0efd232 LP |
548 | return 0; |
549 | } | |
550 | ||
d5e90b7a LP |
551 | static int uvc_ioctl_querycap(struct file *file, void *fh, |
552 | struct v4l2_capability *cap) | |
c0efd232 LP |
553 | { |
554 | struct video_device *vdev = video_devdata(file); | |
abf84383 | 555 | struct uvc_fh *handle = file->private_data; |
8e113595 | 556 | struct uvc_video_chain *chain = handle->chain; |
35f02a68 | 557 | struct uvc_streaming *stream = handle->stream; |
c0efd232 | 558 | |
d5e90b7a LP |
559 | strlcpy(cap->driver, "uvcvideo", sizeof(cap->driver)); |
560 | strlcpy(cap->card, vdev->name, sizeof(cap->card)); | |
561 | usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info)); | |
562 | cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING | |
563 | | chain->caps; | |
564 | if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
565 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
566 | else | |
567 | cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; | |
c0efd232 | 568 | |
d5e90b7a LP |
569 | return 0; |
570 | } | |
0550513c | 571 | |
d5e90b7a LP |
572 | static int uvc_ioctl_enum_fmt(struct uvc_streaming *stream, |
573 | struct v4l2_fmtdesc *fmt) | |
574 | { | |
575 | struct uvc_format *format; | |
576 | enum v4l2_buf_type type = fmt->type; | |
577 | __u32 index = fmt->index; | |
0550513c | 578 | |
d5e90b7a LP |
579 | if (fmt->type != stream->type || fmt->index >= stream->nformats) |
580 | return -EINVAL; | |
0550513c | 581 | |
d5e90b7a LP |
582 | memset(fmt, 0, sizeof(*fmt)); |
583 | fmt->index = index; | |
584 | fmt->type = type; | |
585 | ||
586 | format = &stream->format[fmt->index]; | |
587 | fmt->flags = 0; | |
588 | if (format->flags & UVC_FMT_FLAG_COMPRESSED) | |
589 | fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; | |
590 | strlcpy(fmt->description, format->name, sizeof(fmt->description)); | |
591 | fmt->description[sizeof(fmt->description) - 1] = 0; | |
592 | fmt->pixelformat = format->fcc; | |
593 | return 0; | |
594 | } | |
c0efd232 | 595 | |
d5e90b7a LP |
596 | static int uvc_ioctl_enum_fmt_vid_cap(struct file *file, void *fh, |
597 | struct v4l2_fmtdesc *fmt) | |
598 | { | |
599 | struct uvc_fh *handle = fh; | |
600 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 601 | |
d5e90b7a LP |
602 | return uvc_ioctl_enum_fmt(stream, fmt); |
603 | } | |
c0efd232 | 604 | |
d5e90b7a LP |
605 | static int uvc_ioctl_enum_fmt_vid_out(struct file *file, void *fh, |
606 | struct v4l2_fmtdesc *fmt) | |
607 | { | |
608 | struct uvc_fh *handle = fh; | |
609 | struct uvc_streaming *stream = handle->stream; | |
1fcbcc47 | 610 | |
d5e90b7a LP |
611 | return uvc_ioctl_enum_fmt(stream, fmt); |
612 | } | |
c0efd232 | 613 | |
d5e90b7a LP |
614 | static int uvc_ioctl_g_fmt_vid_cap(struct file *file, void *fh, |
615 | struct v4l2_format *fmt) | |
616 | { | |
617 | struct uvc_fh *handle = fh; | |
618 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 619 | |
d5e90b7a LP |
620 | return uvc_v4l2_get_format(stream, fmt); |
621 | } | |
0550513c | 622 | |
d5e90b7a LP |
623 | static int uvc_ioctl_g_fmt_vid_out(struct file *file, void *fh, |
624 | struct v4l2_format *fmt) | |
625 | { | |
626 | struct uvc_fh *handle = fh; | |
627 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 628 | |
d5e90b7a LP |
629 | return uvc_v4l2_get_format(stream, fmt); |
630 | } | |
1fcbcc47 | 631 | |
d5e90b7a LP |
632 | static int uvc_ioctl_s_fmt_vid_cap(struct file *file, void *fh, |
633 | struct v4l2_format *fmt) | |
634 | { | |
635 | struct uvc_fh *handle = fh; | |
636 | struct uvc_streaming *stream = handle->stream; | |
637 | int ret; | |
c0efd232 | 638 | |
d5e90b7a LP |
639 | ret = uvc_acquire_privileges(handle); |
640 | if (ret < 0) | |
641 | return ret; | |
c0efd232 | 642 | |
d5e90b7a LP |
643 | return uvc_v4l2_set_format(stream, fmt); |
644 | } | |
c0efd232 | 645 | |
d5e90b7a LP |
646 | static int uvc_ioctl_s_fmt_vid_out(struct file *file, void *fh, |
647 | struct v4l2_format *fmt) | |
648 | { | |
649 | struct uvc_fh *handle = fh; | |
650 | struct uvc_streaming *stream = handle->stream; | |
651 | int ret; | |
1fcbcc47 | 652 | |
d5e90b7a LP |
653 | ret = uvc_acquire_privileges(handle); |
654 | if (ret < 0) | |
655 | return ret; | |
c0efd232 | 656 | |
d5e90b7a LP |
657 | return uvc_v4l2_set_format(stream, fmt); |
658 | } | |
c0efd232 | 659 | |
d5e90b7a LP |
660 | static int uvc_ioctl_try_fmt_vid_cap(struct file *file, void *fh, |
661 | struct v4l2_format *fmt) | |
662 | { | |
663 | struct uvc_fh *handle = fh; | |
664 | struct uvc_streaming *stream = handle->stream; | |
665 | struct uvc_streaming_control probe; | |
c0efd232 | 666 | |
d5e90b7a LP |
667 | return uvc_v4l2_try_format(stream, fmt, &probe, NULL, NULL); |
668 | } | |
c0efd232 | 669 | |
d5e90b7a LP |
670 | static int uvc_ioctl_try_fmt_vid_out(struct file *file, void *fh, |
671 | struct v4l2_format *fmt) | |
672 | { | |
673 | struct uvc_fh *handle = fh; | |
674 | struct uvc_streaming *stream = handle->stream; | |
675 | struct uvc_streaming_control probe; | |
c0efd232 | 676 | |
d5e90b7a LP |
677 | return uvc_v4l2_try_format(stream, fmt, &probe, NULL, NULL); |
678 | } | |
c0efd232 | 679 | |
d5e90b7a LP |
680 | static int uvc_ioctl_reqbufs(struct file *file, void *fh, |
681 | struct v4l2_requestbuffers *rb) | |
682 | { | |
683 | struct uvc_fh *handle = fh; | |
684 | struct uvc_streaming *stream = handle->stream; | |
685 | int ret; | |
c0efd232 | 686 | |
d5e90b7a LP |
687 | ret = uvc_acquire_privileges(handle); |
688 | if (ret < 0) | |
689 | return ret; | |
c0efd232 | 690 | |
d5e90b7a | 691 | mutex_lock(&stream->mutex); |
1b7f9c98 | 692 | ret = uvc_request_buffers(&stream->queue, rb); |
d5e90b7a LP |
693 | mutex_unlock(&stream->mutex); |
694 | if (ret < 0) | |
695 | return ret; | |
c0efd232 | 696 | |
d5e90b7a LP |
697 | if (ret == 0) |
698 | uvc_dismiss_privileges(handle); | |
c0efd232 | 699 | |
d5e90b7a LP |
700 | return 0; |
701 | } | |
c0efd232 | 702 | |
d5e90b7a LP |
703 | static int uvc_ioctl_querybuf(struct file *file, void *fh, |
704 | struct v4l2_buffer *buf) | |
705 | { | |
706 | struct uvc_fh *handle = fh; | |
707 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 708 | |
d5e90b7a LP |
709 | if (!uvc_has_privileges(handle)) |
710 | return -EBUSY; | |
c0efd232 | 711 | |
d5e90b7a LP |
712 | return uvc_query_buffer(&stream->queue, buf); |
713 | } | |
0550513c | 714 | |
d5e90b7a LP |
715 | static int uvc_ioctl_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) |
716 | { | |
717 | struct uvc_fh *handle = fh; | |
718 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 719 | |
d5e90b7a LP |
720 | if (!uvc_has_privileges(handle)) |
721 | return -EBUSY; | |
c0efd232 | 722 | |
d5e90b7a LP |
723 | return uvc_queue_buffer(&stream->queue, buf); |
724 | } | |
c0efd232 | 725 | |
d5e90b7a LP |
726 | static int uvc_ioctl_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) |
727 | { | |
728 | struct uvc_fh *handle = fh; | |
729 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 730 | |
d5e90b7a LP |
731 | if (!uvc_has_privileges(handle)) |
732 | return -EBUSY; | |
c0efd232 | 733 | |
d5e90b7a LP |
734 | return uvc_dequeue_buffer(&stream->queue, buf, |
735 | file->f_flags & O_NONBLOCK); | |
736 | } | |
c0efd232 | 737 | |
d5e90b7a LP |
738 | static int uvc_ioctl_create_bufs(struct file *file, void *fh, |
739 | struct v4l2_create_buffers *cb) | |
740 | { | |
741 | struct uvc_fh *handle = fh; | |
742 | struct uvc_streaming *stream = handle->stream; | |
743 | int ret; | |
c0efd232 | 744 | |
d5e90b7a LP |
745 | ret = uvc_acquire_privileges(handle); |
746 | if (ret < 0) | |
747 | return ret; | |
c0efd232 | 748 | |
d5e90b7a LP |
749 | return uvc_create_buffers(&stream->queue, cb); |
750 | } | |
c0efd232 | 751 | |
d5e90b7a LP |
752 | static int uvc_ioctl_streamon(struct file *file, void *fh, |
753 | enum v4l2_buf_type type) | |
754 | { | |
755 | struct uvc_fh *handle = fh; | |
756 | struct uvc_streaming *stream = handle->stream; | |
757 | int ret; | |
0550513c | 758 | |
d5e90b7a LP |
759 | if (!uvc_has_privileges(handle)) |
760 | return -EBUSY; | |
761 | ||
762 | mutex_lock(&stream->mutex); | |
0da4ab98 | 763 | ret = uvc_queue_streamon(&stream->queue, type); |
d5e90b7a | 764 | mutex_unlock(&stream->mutex); |
c0efd232 | 765 | |
d5e90b7a LP |
766 | return ret; |
767 | } | |
c0efd232 | 768 | |
d5e90b7a LP |
769 | static int uvc_ioctl_streamoff(struct file *file, void *fh, |
770 | enum v4l2_buf_type type) | |
771 | { | |
772 | struct uvc_fh *handle = fh; | |
773 | struct uvc_streaming *stream = handle->stream; | |
c0efd232 | 774 | |
d5e90b7a LP |
775 | if (!uvc_has_privileges(handle)) |
776 | return -EBUSY; | |
c0efd232 | 777 | |
d5e90b7a | 778 | mutex_lock(&stream->mutex); |
0da4ab98 | 779 | uvc_queue_streamoff(&stream->queue, type); |
d5e90b7a | 780 | mutex_unlock(&stream->mutex); |
c0efd232 | 781 | |
b83bba24 | 782 | return 0; |
d5e90b7a | 783 | } |
c0efd232 | 784 | |
d5e90b7a LP |
785 | static int uvc_ioctl_enum_input(struct file *file, void *fh, |
786 | struct v4l2_input *input) | |
787 | { | |
788 | struct uvc_fh *handle = fh; | |
789 | struct uvc_video_chain *chain = handle->chain; | |
790 | const struct uvc_entity *selector = chain->selector; | |
791 | struct uvc_entity *iterm = NULL; | |
792 | u32 index = input->index; | |
793 | int pin = 0; | |
794 | ||
795 | if (selector == NULL || | |
796 | (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { | |
797 | if (index != 0) | |
c0efd232 | 798 | return -EINVAL; |
d5e90b7a LP |
799 | list_for_each_entry(iterm, &chain->entities, chain) { |
800 | if (UVC_ENTITY_IS_ITERM(iterm)) | |
c0efd232 | 801 | break; |
c0efd232 | 802 | } |
d5e90b7a LP |
803 | pin = iterm->id; |
804 | } else if (index < selector->bNrInPins) { | |
805 | pin = selector->baSourceID[index]; | |
806 | list_for_each_entry(iterm, &chain->entities, chain) { | |
807 | if (!UVC_ENTITY_IS_ITERM(iterm)) | |
808 | continue; | |
809 | if (iterm->id == pin) | |
810 | break; | |
c0efd232 | 811 | } |
c0efd232 LP |
812 | } |
813 | ||
d5e90b7a LP |
814 | if (iterm == NULL || iterm->id != pin) |
815 | return -EINVAL; | |
c0efd232 | 816 | |
d5e90b7a LP |
817 | memset(input, 0, sizeof(*input)); |
818 | input->index = index; | |
819 | strlcpy(input->name, iterm->name, sizeof(input->name)); | |
820 | if (UVC_ENTITY_TYPE(iterm) == UVC_ITT_CAMERA) | |
821 | input->type = V4L2_INPUT_TYPE_CAMERA; | |
0550513c | 822 | |
d5e90b7a LP |
823 | return 0; |
824 | } | |
c0efd232 | 825 | |
d5e90b7a LP |
826 | static int uvc_ioctl_g_input(struct file *file, void *fh, unsigned int *input) |
827 | { | |
828 | struct uvc_fh *handle = fh; | |
829 | struct uvc_video_chain *chain = handle->chain; | |
830 | int ret; | |
831 | u8 i; | |
c0efd232 | 832 | |
d5e90b7a LP |
833 | if (chain->selector == NULL || |
834 | (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { | |
835 | *input = 0; | |
836 | return 0; | |
837 | } | |
c0efd232 | 838 | |
d5e90b7a LP |
839 | ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR, chain->selector->id, |
840 | chain->dev->intfnum, UVC_SU_INPUT_SELECT_CONTROL, | |
841 | &i, 1); | |
842 | if (ret < 0) | |
843 | return ret; | |
c0efd232 | 844 | |
d5e90b7a LP |
845 | *input = i - 1; |
846 | return 0; | |
847 | } | |
6947756d | 848 | |
d5e90b7a LP |
849 | static int uvc_ioctl_s_input(struct file *file, void *fh, unsigned int input) |
850 | { | |
851 | struct uvc_fh *handle = fh; | |
852 | struct uvc_video_chain *chain = handle->chain; | |
853 | int ret; | |
854 | u32 i; | |
c0efd232 | 855 | |
d5e90b7a LP |
856 | ret = uvc_acquire_privileges(handle); |
857 | if (ret < 0) | |
858 | return ret; | |
c0efd232 | 859 | |
d5e90b7a LP |
860 | if (chain->selector == NULL || |
861 | (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { | |
862 | if (input) | |
863 | return -EINVAL; | |
864 | return 0; | |
c0efd232 LP |
865 | } |
866 | ||
d5e90b7a LP |
867 | if (input >= chain->selector->bNrInPins) |
868 | return -EINVAL; | |
c0efd232 | 869 | |
d5e90b7a LP |
870 | i = input + 1; |
871 | return uvc_query_ctrl(chain->dev, UVC_SET_CUR, chain->selector->id, | |
872 | chain->dev->intfnum, UVC_SU_INPUT_SELECT_CONTROL, | |
873 | &i, 1); | |
874 | } | |
0550513c | 875 | |
d5e90b7a LP |
876 | static int uvc_ioctl_queryctrl(struct file *file, void *fh, |
877 | struct v4l2_queryctrl *qc) | |
878 | { | |
879 | struct uvc_fh *handle = fh; | |
880 | struct uvc_video_chain *chain = handle->chain; | |
c0efd232 | 881 | |
d5e90b7a LP |
882 | return uvc_query_v4l2_ctrl(chain, qc); |
883 | } | |
c0efd232 | 884 | |
e183201b HV |
885 | static int uvc_ioctl_query_ext_ctrl(struct file *file, void *fh, |
886 | struct v4l2_query_ext_ctrl *qec) | |
887 | { | |
888 | struct uvc_fh *handle = fh; | |
889 | struct uvc_video_chain *chain = handle->chain; | |
890 | struct v4l2_queryctrl qc = { qec->id }; | |
891 | int ret; | |
892 | ||
893 | ret = uvc_query_v4l2_ctrl(chain, &qc); | |
894 | if (ret) | |
895 | return ret; | |
896 | ||
897 | qec->id = qc.id; | |
898 | qec->type = qc.type; | |
899 | strlcpy(qec->name, qc.name, sizeof(qec->name)); | |
900 | qec->minimum = qc.minimum; | |
901 | qec->maximum = qc.maximum; | |
902 | qec->step = qc.step; | |
903 | qec->default_value = qc.default_value; | |
904 | qec->flags = qc.flags; | |
905 | qec->elem_size = 4; | |
906 | qec->elems = 1; | |
907 | qec->nr_of_dims = 0; | |
908 | memset(qec->dims, 0, sizeof(qec->dims)); | |
909 | memset(qec->reserved, 0, sizeof(qec->reserved)); | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
d5e90b7a LP |
914 | static int uvc_ioctl_g_ctrl(struct file *file, void *fh, |
915 | struct v4l2_control *ctrl) | |
916 | { | |
917 | struct uvc_fh *handle = fh; | |
918 | struct uvc_video_chain *chain = handle->chain; | |
919 | struct v4l2_ext_control xctrl; | |
920 | int ret; | |
1a969d98 | 921 | |
d5e90b7a LP |
922 | memset(&xctrl, 0, sizeof(xctrl)); |
923 | xctrl.id = ctrl->id; | |
c0efd232 | 924 | |
d5e90b7a LP |
925 | ret = uvc_ctrl_begin(chain); |
926 | if (ret < 0) | |
927 | return ret; | |
c0efd232 | 928 | |
d5e90b7a LP |
929 | ret = uvc_ctrl_get(chain, &xctrl); |
930 | uvc_ctrl_rollback(handle); | |
931 | if (ret < 0) | |
932 | return ret; | |
c0efd232 | 933 | |
d5e90b7a LP |
934 | ctrl->value = xctrl.value; |
935 | return 0; | |
936 | } | |
c0efd232 | 937 | |
d5e90b7a LP |
938 | static int uvc_ioctl_s_ctrl(struct file *file, void *fh, |
939 | struct v4l2_control *ctrl) | |
940 | { | |
941 | struct uvc_fh *handle = fh; | |
942 | struct uvc_video_chain *chain = handle->chain; | |
943 | struct v4l2_ext_control xctrl; | |
944 | int ret; | |
6e9179e2 | 945 | |
d5e90b7a LP |
946 | memset(&xctrl, 0, sizeof(xctrl)); |
947 | xctrl.id = ctrl->id; | |
948 | xctrl.value = ctrl->value; | |
6e9179e2 | 949 | |
d5e90b7a LP |
950 | ret = uvc_ctrl_begin(chain); |
951 | if (ret < 0) | |
952 | return ret; | |
953 | ||
954 | ret = uvc_ctrl_set(chain, &xctrl); | |
955 | if (ret < 0) { | |
956 | uvc_ctrl_rollback(handle); | |
957 | return ret; | |
6e9179e2 PZ |
958 | } |
959 | ||
d5e90b7a LP |
960 | ret = uvc_ctrl_commit(handle, &xctrl, 1); |
961 | if (ret < 0) | |
962 | return ret; | |
c0efd232 | 963 | |
d5e90b7a LP |
964 | ctrl->value = xctrl.value; |
965 | return 0; | |
966 | } | |
c0efd232 | 967 | |
d5e90b7a LP |
968 | static int uvc_ioctl_g_ext_ctrls(struct file *file, void *fh, |
969 | struct v4l2_ext_controls *ctrls) | |
970 | { | |
971 | struct uvc_fh *handle = fh; | |
972 | struct uvc_video_chain *chain = handle->chain; | |
973 | struct v4l2_ext_control *ctrl = ctrls->controls; | |
974 | unsigned int i; | |
975 | int ret; | |
c0efd232 | 976 | |
d5e90b7a LP |
977 | ret = uvc_ctrl_begin(chain); |
978 | if (ret < 0) | |
979 | return ret; | |
c0efd232 | 980 | |
d5e90b7a LP |
981 | for (i = 0; i < ctrls->count; ++ctrl, ++i) { |
982 | ret = uvc_ctrl_get(chain, ctrl); | |
983 | if (ret < 0) { | |
984 | uvc_ctrl_rollback(handle); | |
985 | ctrls->error_idx = i; | |
986 | return ret; | |
987 | } | |
988 | } | |
c0efd232 | 989 | |
d5e90b7a | 990 | ctrls->error_idx = 0; |
c0efd232 | 991 | |
d5e90b7a LP |
992 | return uvc_ctrl_rollback(handle); |
993 | } | |
0550513c | 994 | |
d5e90b7a LP |
995 | static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh *handle, |
996 | struct v4l2_ext_controls *ctrls, | |
997 | bool commit) | |
998 | { | |
999 | struct v4l2_ext_control *ctrl = ctrls->controls; | |
1000 | struct uvc_video_chain *chain = handle->chain; | |
1001 | unsigned int i; | |
1002 | int ret; | |
c0efd232 | 1003 | |
d5e90b7a LP |
1004 | ret = uvc_ctrl_begin(chain); |
1005 | if (ret < 0) | |
1006 | return ret; | |
1007 | ||
1008 | for (i = 0; i < ctrls->count; ++ctrl, ++i) { | |
1009 | ret = uvc_ctrl_set(chain, ctrl); | |
1010 | if (ret < 0) { | |
1011 | uvc_ctrl_rollback(handle); | |
1012 | ctrls->error_idx = commit ? ctrls->count : i; | |
c0efd232 | 1013 | return ret; |
d5e90b7a | 1014 | } |
c0efd232 LP |
1015 | } |
1016 | ||
d5e90b7a | 1017 | ctrls->error_idx = 0; |
c0efd232 | 1018 | |
d5e90b7a LP |
1019 | if (commit) |
1020 | return uvc_ctrl_commit(handle, ctrls->controls, ctrls->count); | |
1021 | else | |
1022 | return uvc_ctrl_rollback(handle); | |
1023 | } | |
c0efd232 | 1024 | |
d5e90b7a LP |
1025 | static int uvc_ioctl_s_ext_ctrls(struct file *file, void *fh, |
1026 | struct v4l2_ext_controls *ctrls) | |
1027 | { | |
1028 | struct uvc_fh *handle = fh; | |
0550513c | 1029 | |
d5e90b7a LP |
1030 | return uvc_ioctl_s_try_ext_ctrls(handle, ctrls, true); |
1031 | } | |
1032 | ||
1033 | static int uvc_ioctl_try_ext_ctrls(struct file *file, void *fh, | |
1034 | struct v4l2_ext_controls *ctrls) | |
1035 | { | |
1036 | struct uvc_fh *handle = fh; | |
1037 | ||
1038 | return uvc_ioctl_s_try_ext_ctrls(handle, ctrls, false); | |
1039 | } | |
c0efd232 | 1040 | |
d5e90b7a LP |
1041 | static int uvc_ioctl_querymenu(struct file *file, void *fh, |
1042 | struct v4l2_querymenu *qm) | |
1043 | { | |
1044 | struct uvc_fh *handle = fh; | |
1045 | struct uvc_video_chain *chain = handle->chain; | |
1046 | ||
1047 | return uvc_query_v4l2_menu(chain, qm); | |
1048 | } | |
1049 | ||
1461fe7a HV |
1050 | static int uvc_ioctl_g_selection(struct file *file, void *fh, |
1051 | struct v4l2_selection *sel) | |
d5e90b7a LP |
1052 | { |
1053 | struct uvc_fh *handle = fh; | |
1054 | struct uvc_streaming *stream = handle->stream; | |
1055 | ||
1461fe7a | 1056 | if (sel->type != stream->type) |
d5e90b7a LP |
1057 | return -EINVAL; |
1058 | ||
1461fe7a HV |
1059 | switch (sel->target) { |
1060 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
1061 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
1062 | if (stream->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1063 | return -EINVAL; | |
1064 | break; | |
1065 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
1066 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
1067 | if (stream->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1068 | return -EINVAL; | |
1069 | break; | |
1070 | default: | |
1071 | return -EINVAL; | |
1072 | } | |
1073 | ||
1074 | sel->r.left = 0; | |
1075 | sel->r.top = 0; | |
d5e90b7a | 1076 | mutex_lock(&stream->mutex); |
1461fe7a HV |
1077 | sel->r.width = stream->cur_frame->wWidth; |
1078 | sel->r.height = stream->cur_frame->wHeight; | |
d5e90b7a LP |
1079 | mutex_unlock(&stream->mutex); |
1080 | ||
d5e90b7a LP |
1081 | return 0; |
1082 | } | |
1083 | ||
1084 | static int uvc_ioctl_g_parm(struct file *file, void *fh, | |
1085 | struct v4l2_streamparm *parm) | |
1086 | { | |
1087 | struct uvc_fh *handle = fh; | |
1088 | struct uvc_streaming *stream = handle->stream; | |
1089 | ||
1090 | return uvc_v4l2_get_streamparm(stream, parm); | |
1091 | } | |
1092 | ||
1093 | static int uvc_ioctl_s_parm(struct file *file, void *fh, | |
1094 | struct v4l2_streamparm *parm) | |
1095 | { | |
1096 | struct uvc_fh *handle = fh; | |
1097 | struct uvc_streaming *stream = handle->stream; | |
1098 | int ret; | |
1099 | ||
1100 | ret = uvc_acquire_privileges(handle); | |
1101 | if (ret < 0) | |
1102 | return ret; | |
1103 | ||
1104 | return uvc_v4l2_set_streamparm(stream, parm); | |
1105 | } | |
1106 | ||
1107 | static int uvc_ioctl_enum_framesizes(struct file *file, void *fh, | |
1108 | struct v4l2_frmsizeenum *fsize) | |
1109 | { | |
1110 | struct uvc_fh *handle = fh; | |
1111 | struct uvc_streaming *stream = handle->stream; | |
1112 | struct uvc_format *format = NULL; | |
1113 | struct uvc_frame *frame; | |
1114 | int i; | |
1115 | ||
1116 | /* Look for the given pixel format */ | |
1117 | for (i = 0; i < stream->nformats; i++) { | |
1118 | if (stream->format[i].fcc == fsize->pixel_format) { | |
1119 | format = &stream->format[i]; | |
1120 | break; | |
1121 | } | |
c0efd232 | 1122 | } |
d5e90b7a LP |
1123 | if (format == NULL) |
1124 | return -EINVAL; | |
c0efd232 | 1125 | |
d5e90b7a LP |
1126 | if (fsize->index >= format->nframes) |
1127 | return -EINVAL; | |
b4012002 | 1128 | |
d5e90b7a LP |
1129 | frame = &format->frame[fsize->index]; |
1130 | fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; | |
1131 | fsize->discrete.width = frame->wWidth; | |
1132 | fsize->discrete.height = frame->wHeight; | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | static int uvc_ioctl_enum_frameintervals(struct file *file, void *fh, | |
1137 | struct v4l2_frmivalenum *fival) | |
1138 | { | |
1139 | struct uvc_fh *handle = fh; | |
1140 | struct uvc_streaming *stream = handle->stream; | |
1141 | struct uvc_format *format = NULL; | |
1142 | struct uvc_frame *frame = NULL; | |
1143 | int i; | |
1144 | ||
1145 | /* Look for the given pixel format and frame size */ | |
1146 | for (i = 0; i < stream->nformats; i++) { | |
1147 | if (stream->format[i].fcc == fival->pixel_format) { | |
1148 | format = &stream->format[i]; | |
1149 | break; | |
b4012002 HG |
1150 | } |
1151 | } | |
d5e90b7a LP |
1152 | if (format == NULL) |
1153 | return -EINVAL; | |
b4012002 | 1154 | |
d5e90b7a LP |
1155 | for (i = 0; i < format->nframes; i++) { |
1156 | if (format->frame[i].wWidth == fival->width && | |
1157 | format->frame[i].wHeight == fival->height) { | |
1158 | frame = &format->frame[i]; | |
1159 | break; | |
1160 | } | |
1161 | } | |
1162 | if (frame == NULL) | |
1163 | return -EINVAL; | |
b4012002 | 1164 | |
d5e90b7a LP |
1165 | if (frame->bFrameIntervalType) { |
1166 | if (fival->index >= frame->bFrameIntervalType) | |
1167 | return -EINVAL; | |
b4012002 | 1168 | |
d5e90b7a LP |
1169 | fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; |
1170 | fival->discrete.numerator = | |
1171 | frame->dwFrameInterval[fival->index]; | |
1172 | fival->discrete.denominator = 10000000; | |
1173 | uvc_simplify_fraction(&fival->discrete.numerator, | |
1174 | &fival->discrete.denominator, 8, 333); | |
1175 | } else { | |
1cdf60c9 LP |
1176 | if (fival->index) |
1177 | return -EINVAL; | |
1178 | ||
d5e90b7a LP |
1179 | fival->type = V4L2_FRMIVAL_TYPE_STEPWISE; |
1180 | fival->stepwise.min.numerator = frame->dwFrameInterval[0]; | |
1181 | fival->stepwise.min.denominator = 10000000; | |
1182 | fival->stepwise.max.numerator = frame->dwFrameInterval[1]; | |
1183 | fival->stepwise.max.denominator = 10000000; | |
1184 | fival->stepwise.step.numerator = frame->dwFrameInterval[2]; | |
1185 | fival->stepwise.step.denominator = 10000000; | |
1186 | uvc_simplify_fraction(&fival->stepwise.min.numerator, | |
1187 | &fival->stepwise.min.denominator, 8, 333); | |
1188 | uvc_simplify_fraction(&fival->stepwise.max.numerator, | |
1189 | &fival->stepwise.max.denominator, 8, 333); | |
1190 | uvc_simplify_fraction(&fival->stepwise.step.numerator, | |
1191 | &fival->stepwise.step.denominator, 8, 333); | |
1192 | } | |
c0efd232 | 1193 | |
d5e90b7a LP |
1194 | return 0; |
1195 | } | |
c0efd232 | 1196 | |
d5e90b7a LP |
1197 | static int uvc_ioctl_subscribe_event(struct v4l2_fh *fh, |
1198 | const struct v4l2_event_subscription *sub) | |
1199 | { | |
1200 | switch (sub->type) { | |
1201 | case V4L2_EVENT_CTRL: | |
1202 | return v4l2_event_subscribe(fh, sub, 0, &uvc_ctrl_sub_ev_ops); | |
1203 | default: | |
1204 | return -EINVAL; | |
1205 | } | |
1206 | } | |
c0efd232 | 1207 | |
d5e90b7a LP |
1208 | static long uvc_ioctl_default(struct file *file, void *fh, bool valid_prio, |
1209 | unsigned int cmd, void *arg) | |
1210 | { | |
1211 | struct uvc_fh *handle = fh; | |
1212 | struct uvc_video_chain *chain = handle->chain; | |
c0efd232 | 1213 | |
d5e90b7a LP |
1214 | switch (cmd) { |
1215 | /* Dynamic controls. */ | |
c0efd232 | 1216 | case UVCIOC_CTRL_MAP: |
227bd5b3 | 1217 | return uvc_ioctl_ctrl_map(chain, arg); |
fe78d187 MR |
1218 | |
1219 | case UVCIOC_CTRL_QUERY: | |
1220 | return uvc_xu_ctrl_query(chain, arg); | |
c0efd232 LP |
1221 | |
1222 | default: | |
a3ec69b7 | 1223 | return -ENOTTY; |
c0efd232 | 1224 | } |
c0efd232 LP |
1225 | } |
1226 | ||
1a5e4c86 LP |
1227 | #ifdef CONFIG_COMPAT |
1228 | struct uvc_xu_control_mapping32 { | |
1229 | __u32 id; | |
1230 | __u8 name[32]; | |
1231 | __u8 entity[16]; | |
1232 | __u8 selector; | |
1233 | ||
1234 | __u8 size; | |
1235 | __u8 offset; | |
1236 | __u32 v4l2_type; | |
1237 | __u32 data_type; | |
1238 | ||
1239 | compat_caddr_t menu_info; | |
1240 | __u32 menu_count; | |
1241 | ||
1242 | __u32 reserved[4]; | |
1243 | }; | |
1244 | ||
1245 | static int uvc_v4l2_get_xu_mapping(struct uvc_xu_control_mapping *kp, | |
1246 | const struct uvc_xu_control_mapping32 __user *up) | |
1247 | { | |
1248 | struct uvc_menu_info __user *umenus; | |
1249 | struct uvc_menu_info __user *kmenus; | |
1250 | compat_caddr_t p; | |
1251 | ||
1252 | if (!access_ok(VERIFY_READ, up, sizeof(*up)) || | |
1253 | __copy_from_user(kp, up, offsetof(typeof(*up), menu_info)) || | |
1254 | __get_user(kp->menu_count, &up->menu_count)) | |
1255 | return -EFAULT; | |
1256 | ||
1257 | memset(kp->reserved, 0, sizeof(kp->reserved)); | |
1258 | ||
1259 | if (kp->menu_count == 0) { | |
1260 | kp->menu_info = NULL; | |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | if (__get_user(p, &up->menu_info)) | |
1265 | return -EFAULT; | |
1266 | umenus = compat_ptr(p); | |
1267 | if (!access_ok(VERIFY_READ, umenus, kp->menu_count * sizeof(*umenus))) | |
1268 | return -EFAULT; | |
1269 | ||
1270 | kmenus = compat_alloc_user_space(kp->menu_count * sizeof(*kmenus)); | |
1271 | if (kmenus == NULL) | |
1272 | return -EFAULT; | |
1273 | kp->menu_info = kmenus; | |
1274 | ||
1275 | if (copy_in_user(kmenus, umenus, kp->menu_count * sizeof(*umenus))) | |
1276 | return -EFAULT; | |
1277 | ||
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | static int uvc_v4l2_put_xu_mapping(const struct uvc_xu_control_mapping *kp, | |
1282 | struct uvc_xu_control_mapping32 __user *up) | |
1283 | { | |
1284 | struct uvc_menu_info __user *umenus; | |
1285 | struct uvc_menu_info __user *kmenus = kp->menu_info; | |
1286 | compat_caddr_t p; | |
1287 | ||
1288 | if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) || | |
1289 | __copy_to_user(up, kp, offsetof(typeof(*up), menu_info)) || | |
1290 | __put_user(kp->menu_count, &up->menu_count)) | |
1291 | return -EFAULT; | |
1292 | ||
57fb4a48 HG |
1293 | if (__clear_user(up->reserved, sizeof(up->reserved))) |
1294 | return -EFAULT; | |
1a5e4c86 LP |
1295 | |
1296 | if (kp->menu_count == 0) | |
1297 | return 0; | |
1298 | ||
1299 | if (get_user(p, &up->menu_info)) | |
1300 | return -EFAULT; | |
1301 | umenus = compat_ptr(p); | |
1a5e4c86 LP |
1302 | |
1303 | if (copy_in_user(umenus, kmenus, kp->menu_count * sizeof(*umenus))) | |
1304 | return -EFAULT; | |
1305 | ||
1306 | return 0; | |
1307 | } | |
1308 | ||
1309 | struct uvc_xu_control_query32 { | |
1310 | __u8 unit; | |
1311 | __u8 selector; | |
1312 | __u8 query; | |
1313 | __u16 size; | |
1314 | compat_caddr_t data; | |
1315 | }; | |
1316 | ||
1317 | static int uvc_v4l2_get_xu_query(struct uvc_xu_control_query *kp, | |
1318 | const struct uvc_xu_control_query32 __user *up) | |
1319 | { | |
1320 | u8 __user *udata; | |
1321 | u8 __user *kdata; | |
1322 | compat_caddr_t p; | |
1323 | ||
1324 | if (!access_ok(VERIFY_READ, up, sizeof(*up)) || | |
1325 | __copy_from_user(kp, up, offsetof(typeof(*up), data))) | |
1326 | return -EFAULT; | |
1327 | ||
1328 | if (kp->size == 0) { | |
1329 | kp->data = NULL; | |
1330 | return 0; | |
1331 | } | |
1332 | ||
1333 | if (__get_user(p, &up->data)) | |
1334 | return -EFAULT; | |
1335 | udata = compat_ptr(p); | |
1336 | if (!access_ok(VERIFY_READ, udata, kp->size)) | |
1337 | return -EFAULT; | |
1338 | ||
1339 | kdata = compat_alloc_user_space(kp->size); | |
1340 | if (kdata == NULL) | |
1341 | return -EFAULT; | |
1342 | kp->data = kdata; | |
1343 | ||
1344 | if (copy_in_user(kdata, udata, kp->size)) | |
1345 | return -EFAULT; | |
1346 | ||
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static int uvc_v4l2_put_xu_query(const struct uvc_xu_control_query *kp, | |
1351 | struct uvc_xu_control_query32 __user *up) | |
1352 | { | |
1353 | u8 __user *udata; | |
1354 | u8 __user *kdata = kp->data; | |
1355 | compat_caddr_t p; | |
1356 | ||
1357 | if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) || | |
1358 | __copy_to_user(up, kp, offsetof(typeof(*up), data))) | |
1359 | return -EFAULT; | |
1360 | ||
1361 | if (kp->size == 0) | |
1362 | return 0; | |
1363 | ||
1364 | if (get_user(p, &up->data)) | |
1365 | return -EFAULT; | |
1366 | udata = compat_ptr(p); | |
1367 | if (!access_ok(VERIFY_READ, udata, kp->size)) | |
1368 | return -EFAULT; | |
1369 | ||
1370 | if (copy_in_user(udata, kdata, kp->size)) | |
1371 | return -EFAULT; | |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | #define UVCIOC_CTRL_MAP32 _IOWR('u', 0x20, struct uvc_xu_control_mapping32) | |
1377 | #define UVCIOC_CTRL_QUERY32 _IOWR('u', 0x21, struct uvc_xu_control_query32) | |
1378 | ||
1379 | static long uvc_v4l2_compat_ioctl32(struct file *file, | |
1380 | unsigned int cmd, unsigned long arg) | |
1381 | { | |
1382 | union { | |
1383 | struct uvc_xu_control_mapping xmap; | |
1384 | struct uvc_xu_control_query xqry; | |
1385 | } karg; | |
1386 | void __user *up = compat_ptr(arg); | |
1387 | mm_segment_t old_fs; | |
1388 | long ret; | |
1389 | ||
1390 | switch (cmd) { | |
1391 | case UVCIOC_CTRL_MAP32: | |
1392 | cmd = UVCIOC_CTRL_MAP; | |
1393 | ret = uvc_v4l2_get_xu_mapping(&karg.xmap, up); | |
1394 | break; | |
1395 | ||
1396 | case UVCIOC_CTRL_QUERY32: | |
1397 | cmd = UVCIOC_CTRL_QUERY; | |
1398 | ret = uvc_v4l2_get_xu_query(&karg.xqry, up); | |
1399 | break; | |
1400 | ||
1401 | default: | |
1402 | return -ENOIOCTLCMD; | |
1403 | } | |
1404 | ||
1405 | old_fs = get_fs(); | |
1406 | set_fs(KERNEL_DS); | |
d5e90b7a | 1407 | ret = video_ioctl2(file, cmd, (unsigned long)&karg); |
1a5e4c86 LP |
1408 | set_fs(old_fs); |
1409 | ||
1410 | if (ret < 0) | |
1411 | return ret; | |
1412 | ||
1413 | switch (cmd) { | |
1414 | case UVCIOC_CTRL_MAP: | |
1415 | ret = uvc_v4l2_put_xu_mapping(&karg.xmap, up); | |
1416 | break; | |
1417 | ||
1418 | case UVCIOC_CTRL_QUERY: | |
1419 | ret = uvc_v4l2_put_xu_query(&karg.xqry, up); | |
1420 | break; | |
1421 | } | |
1422 | ||
1423 | return ret; | |
1424 | } | |
1425 | #endif | |
1426 | ||
c0efd232 LP |
1427 | static ssize_t uvc_v4l2_read(struct file *file, char __user *data, |
1428 | size_t count, loff_t *ppos) | |
1429 | { | |
1430 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_read: not implemented.\n"); | |
350d6407 | 1431 | return -EINVAL; |
c0efd232 LP |
1432 | } |
1433 | ||
c0efd232 LP |
1434 | static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) |
1435 | { | |
abf84383 | 1436 | struct uvc_fh *handle = file->private_data; |
35f02a68 | 1437 | struct uvc_streaming *stream = handle->stream; |
c0efd232 LP |
1438 | |
1439 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_mmap\n"); | |
1440 | ||
4aa27597 | 1441 | return uvc_queue_mmap(&stream->queue, vma); |
c0efd232 LP |
1442 | } |
1443 | ||
1444 | static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait) | |
1445 | { | |
abf84383 | 1446 | struct uvc_fh *handle = file->private_data; |
35f02a68 | 1447 | struct uvc_streaming *stream = handle->stream; |
c0efd232 LP |
1448 | |
1449 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_poll\n"); | |
1450 | ||
35f02a68 | 1451 | return uvc_queue_poll(&stream->queue, file, wait); |
c0efd232 LP |
1452 | } |
1453 | ||
72969447 BL |
1454 | #ifndef CONFIG_MMU |
1455 | static unsigned long uvc_v4l2_get_unmapped_area(struct file *file, | |
1456 | unsigned long addr, unsigned long len, unsigned long pgoff, | |
1457 | unsigned long flags) | |
1458 | { | |
1459 | struct uvc_fh *handle = file->private_data; | |
1460 | struct uvc_streaming *stream = handle->stream; | |
1461 | ||
1462 | uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_get_unmapped_area\n"); | |
1463 | ||
1464 | return uvc_queue_get_unmapped_area(&stream->queue, pgoff); | |
1465 | } | |
1466 | #endif | |
1467 | ||
d5e90b7a LP |
1468 | const struct v4l2_ioctl_ops uvc_ioctl_ops = { |
1469 | .vidioc_querycap = uvc_ioctl_querycap, | |
1470 | .vidioc_enum_fmt_vid_cap = uvc_ioctl_enum_fmt_vid_cap, | |
1471 | .vidioc_enum_fmt_vid_out = uvc_ioctl_enum_fmt_vid_out, | |
1472 | .vidioc_g_fmt_vid_cap = uvc_ioctl_g_fmt_vid_cap, | |
1473 | .vidioc_g_fmt_vid_out = uvc_ioctl_g_fmt_vid_out, | |
1474 | .vidioc_s_fmt_vid_cap = uvc_ioctl_s_fmt_vid_cap, | |
1475 | .vidioc_s_fmt_vid_out = uvc_ioctl_s_fmt_vid_out, | |
1476 | .vidioc_try_fmt_vid_cap = uvc_ioctl_try_fmt_vid_cap, | |
1477 | .vidioc_try_fmt_vid_out = uvc_ioctl_try_fmt_vid_out, | |
1478 | .vidioc_reqbufs = uvc_ioctl_reqbufs, | |
1479 | .vidioc_querybuf = uvc_ioctl_querybuf, | |
1480 | .vidioc_qbuf = uvc_ioctl_qbuf, | |
1481 | .vidioc_dqbuf = uvc_ioctl_dqbuf, | |
1482 | .vidioc_create_bufs = uvc_ioctl_create_bufs, | |
1483 | .vidioc_streamon = uvc_ioctl_streamon, | |
1484 | .vidioc_streamoff = uvc_ioctl_streamoff, | |
1485 | .vidioc_enum_input = uvc_ioctl_enum_input, | |
1486 | .vidioc_g_input = uvc_ioctl_g_input, | |
1487 | .vidioc_s_input = uvc_ioctl_s_input, | |
1488 | .vidioc_queryctrl = uvc_ioctl_queryctrl, | |
e183201b | 1489 | .vidioc_query_ext_ctrl = uvc_ioctl_query_ext_ctrl, |
d5e90b7a LP |
1490 | .vidioc_g_ctrl = uvc_ioctl_g_ctrl, |
1491 | .vidioc_s_ctrl = uvc_ioctl_s_ctrl, | |
1492 | .vidioc_g_ext_ctrls = uvc_ioctl_g_ext_ctrls, | |
1493 | .vidioc_s_ext_ctrls = uvc_ioctl_s_ext_ctrls, | |
1494 | .vidioc_try_ext_ctrls = uvc_ioctl_try_ext_ctrls, | |
1495 | .vidioc_querymenu = uvc_ioctl_querymenu, | |
1461fe7a | 1496 | .vidioc_g_selection = uvc_ioctl_g_selection, |
d5e90b7a LP |
1497 | .vidioc_g_parm = uvc_ioctl_g_parm, |
1498 | .vidioc_s_parm = uvc_ioctl_s_parm, | |
1499 | .vidioc_enum_framesizes = uvc_ioctl_enum_framesizes, | |
1500 | .vidioc_enum_frameintervals = uvc_ioctl_enum_frameintervals, | |
1501 | .vidioc_subscribe_event = uvc_ioctl_subscribe_event, | |
1502 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1503 | .vidioc_default = uvc_ioctl_default, | |
1504 | }; | |
1505 | ||
bec43661 | 1506 | const struct v4l2_file_operations uvc_fops = { |
c0efd232 LP |
1507 | .owner = THIS_MODULE, |
1508 | .open = uvc_v4l2_open, | |
1509 | .release = uvc_v4l2_release, | |
d5e90b7a | 1510 | .unlocked_ioctl = video_ioctl2, |
1a5e4c86 LP |
1511 | #ifdef CONFIG_COMPAT |
1512 | .compat_ioctl32 = uvc_v4l2_compat_ioctl32, | |
1513 | #endif | |
c0efd232 LP |
1514 | .read = uvc_v4l2_read, |
1515 | .mmap = uvc_v4l2_mmap, | |
1516 | .poll = uvc_v4l2_poll, | |
72969447 BL |
1517 | #ifndef CONFIG_MMU |
1518 | .get_unmapped_area = uvc_v4l2_get_unmapped_area, | |
1519 | #endif | |
c0efd232 | 1520 | }; |
f87086e3 | 1521 |