1 | // SPDX-License-Identifier: GPL-2.0-or-later |
---|---|
2 | /* |
3 | * uvc_driver.c -- USB Video Class driver |
4 | * |
5 | * Copyright (C) 2005-2010 |
6 | * Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
7 | */ |
8 | |
9 | #include <linux/atomic.h> |
10 | #include <linux/bits.h> |
11 | #include <linux/gpio/consumer.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/list.h> |
14 | #include <linux/module.h> |
15 | #include <linux/slab.h> |
16 | #include <linux/usb.h> |
17 | #include <linux/usb/quirks.h> |
18 | #include <linux/usb/uvc.h> |
19 | #include <linux/videodev2.h> |
20 | #include <linux/vmalloc.h> |
21 | #include <linux/wait.h> |
22 | #include <linux/unaligned.h> |
23 | |
24 | #include <media/v4l2-common.h> |
25 | #include <media/v4l2-ioctl.h> |
26 | |
27 | #include "uvcvideo.h" |
28 | |
29 | #define DRIVER_AUTHOR "Laurent Pinchart " \ |
30 | "<laurent.pinchart@ideasonboard.com>" |
31 | #define DRIVER_DESC "USB Video Class driver" |
32 | |
33 | unsigned int uvc_clock_param = CLOCK_MONOTONIC; |
34 | unsigned int uvc_hw_timestamps_param; |
35 | unsigned int uvc_no_drop_param = 1; |
36 | static unsigned int uvc_quirks_param = -1; |
37 | unsigned int uvc_dbg_param; |
38 | unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT; |
39 | |
40 | static struct usb_driver uvc_driver; |
41 | |
42 | /* ------------------------------------------------------------------------ |
43 | * Utility functions |
44 | */ |
45 | |
46 | struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, |
47 | u8 epaddr) |
48 | { |
49 | struct usb_host_endpoint *ep; |
50 | unsigned int i; |
51 | |
52 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { |
53 | ep = &alts->endpoint[i]; |
54 | if (ep->desc.bEndpointAddress == epaddr) |
55 | return ep; |
56 | } |
57 | |
58 | return NULL; |
59 | } |
60 | |
61 | static enum v4l2_colorspace uvc_colorspace(const u8 primaries) |
62 | { |
63 | static const enum v4l2_colorspace colorprimaries[] = { |
64 | V4L2_COLORSPACE_SRGB, /* Unspecified */ |
65 | V4L2_COLORSPACE_SRGB, |
66 | V4L2_COLORSPACE_470_SYSTEM_M, |
67 | V4L2_COLORSPACE_470_SYSTEM_BG, |
68 | V4L2_COLORSPACE_SMPTE170M, |
69 | V4L2_COLORSPACE_SMPTE240M, |
70 | }; |
71 | |
72 | if (primaries < ARRAY_SIZE(colorprimaries)) |
73 | return colorprimaries[primaries]; |
74 | |
75 | return V4L2_COLORSPACE_SRGB; /* Reserved */ |
76 | } |
77 | |
78 | static enum v4l2_xfer_func uvc_xfer_func(const u8 transfer_characteristics) |
79 | { |
80 | /* |
81 | * V4L2 does not currently have definitions for all possible values of |
82 | * UVC transfer characteristics. If v4l2_xfer_func is extended with new |
83 | * values, the mapping below should be updated. |
84 | * |
85 | * Substitutions are taken from the mapping given for |
86 | * V4L2_XFER_FUNC_DEFAULT documented in videodev2.h. |
87 | */ |
88 | static const enum v4l2_xfer_func xfer_funcs[] = { |
89 | V4L2_XFER_FUNC_DEFAULT, /* Unspecified */ |
90 | V4L2_XFER_FUNC_709, |
91 | V4L2_XFER_FUNC_709, /* Substitution for BT.470-2 M */ |
92 | V4L2_XFER_FUNC_709, /* Substitution for BT.470-2 B, G */ |
93 | V4L2_XFER_FUNC_709, /* Substitution for SMPTE 170M */ |
94 | V4L2_XFER_FUNC_SMPTE240M, |
95 | V4L2_XFER_FUNC_NONE, |
96 | V4L2_XFER_FUNC_SRGB, |
97 | }; |
98 | |
99 | if (transfer_characteristics < ARRAY_SIZE(xfer_funcs)) |
100 | return xfer_funcs[transfer_characteristics]; |
101 | |
102 | return V4L2_XFER_FUNC_DEFAULT; /* Reserved */ |
103 | } |
104 | |
105 | static enum v4l2_ycbcr_encoding uvc_ycbcr_enc(const u8 matrix_coefficients) |
106 | { |
107 | /* |
108 | * V4L2 does not currently have definitions for all possible values of |
109 | * UVC matrix coefficients. If v4l2_ycbcr_encoding is extended with new |
110 | * values, the mapping below should be updated. |
111 | * |
112 | * Substitutions are taken from the mapping given for |
113 | * V4L2_YCBCR_ENC_DEFAULT documented in videodev2.h. |
114 | * |
115 | * FCC is assumed to be close enough to 601. |
116 | */ |
117 | static const enum v4l2_ycbcr_encoding ycbcr_encs[] = { |
118 | V4L2_YCBCR_ENC_DEFAULT, /* Unspecified */ |
119 | V4L2_YCBCR_ENC_709, |
120 | V4L2_YCBCR_ENC_601, /* Substitution for FCC */ |
121 | V4L2_YCBCR_ENC_601, /* Substitution for BT.470-2 B, G */ |
122 | V4L2_YCBCR_ENC_601, |
123 | V4L2_YCBCR_ENC_SMPTE240M, |
124 | }; |
125 | |
126 | if (matrix_coefficients < ARRAY_SIZE(ycbcr_encs)) |
127 | return ycbcr_encs[matrix_coefficients]; |
128 | |
129 | return V4L2_YCBCR_ENC_DEFAULT; /* Reserved */ |
130 | } |
131 | |
132 | /* ------------------------------------------------------------------------ |
133 | * Terminal and unit management |
134 | */ |
135 | |
136 | struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) |
137 | { |
138 | struct uvc_entity *entity; |
139 | |
140 | list_for_each_entry(entity, &dev->entities, list) { |
141 | if (entity->id == id) |
142 | return entity; |
143 | } |
144 | |
145 | return NULL; |
146 | } |
147 | |
148 | static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, |
149 | int id, struct uvc_entity *entity) |
150 | { |
151 | unsigned int i; |
152 | |
153 | if (entity == NULL) |
154 | entity = list_entry(&dev->entities, struct uvc_entity, list); |
155 | |
156 | list_for_each_entry_continue(entity, &dev->entities, list) { |
157 | for (i = 0; i < entity->bNrInPins; ++i) |
158 | if (entity->baSourceID[i] == id) |
159 | return entity; |
160 | } |
161 | |
162 | return NULL; |
163 | } |
164 | |
165 | static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) |
166 | { |
167 | struct uvc_streaming *stream; |
168 | |
169 | list_for_each_entry(stream, &dev->streams, list) { |
170 | if (stream->header.bTerminalLink == id) |
171 | return stream; |
172 | } |
173 | |
174 | return NULL; |
175 | } |
176 | |
177 | /* ------------------------------------------------------------------------ |
178 | * Streaming Object Management |
179 | */ |
180 | |
181 | static void uvc_stream_delete(struct uvc_streaming *stream) |
182 | { |
183 | if (stream->async_wq) |
184 | destroy_workqueue(wq: stream->async_wq); |
185 | |
186 | mutex_destroy(lock: &stream->mutex); |
187 | |
188 | usb_put_intf(intf: stream->intf); |
189 | |
190 | kfree(objp: stream->formats); |
191 | kfree(objp: stream->header.bmaControls); |
192 | kfree(objp: stream); |
193 | } |
194 | |
195 | static struct uvc_streaming *uvc_stream_new(struct uvc_device *dev, |
196 | struct usb_interface *intf) |
197 | { |
198 | struct uvc_streaming *stream; |
199 | |
200 | stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
201 | if (stream == NULL) |
202 | return NULL; |
203 | |
204 | mutex_init(&stream->mutex); |
205 | |
206 | stream->dev = dev; |
207 | stream->intf = usb_get_intf(intf); |
208 | stream->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; |
209 | |
210 | /* Allocate a stream specific work queue for asynchronous tasks. */ |
211 | stream->async_wq = alloc_workqueue(fmt: "uvcvideo", flags: WQ_UNBOUND | WQ_HIGHPRI, |
212 | max_active: 0); |
213 | if (!stream->async_wq) { |
214 | uvc_stream_delete(stream); |
215 | return NULL; |
216 | } |
217 | |
218 | return stream; |
219 | } |
220 | |
221 | /* ------------------------------------------------------------------------ |
222 | * Descriptors parsing |
223 | */ |
224 | |
225 | static int uvc_parse_frame(struct uvc_device *dev, |
226 | struct uvc_streaming *streaming, |
227 | struct uvc_format *format, struct uvc_frame *frame, |
228 | u32 **intervals, u8 ftype, int width_multiplier, |
229 | const unsigned char *buffer, int buflen) |
230 | { |
231 | struct usb_host_interface *alts = streaming->intf->cur_altsetting; |
232 | unsigned int maxIntervalIndex; |
233 | unsigned int interval; |
234 | unsigned int i, n; |
235 | |
236 | if (ftype != UVC_VS_FRAME_FRAME_BASED) |
237 | n = buflen > 25 ? buffer[25] : 0; |
238 | else |
239 | n = buflen > 21 ? buffer[21] : 0; |
240 | |
241 | n = n ? n : 3; |
242 | |
243 | if (buflen < 26 + 4 * n) { |
244 | uvc_dbg(dev, DESCR, |
245 | "device %d videostreaming interface %d FRAME error\n", |
246 | dev->udev->devnum, alts->desc.bInterfaceNumber); |
247 | return -EINVAL; |
248 | } |
249 | |
250 | frame->bFrameIndex = buffer[3]; |
251 | frame->bmCapabilities = buffer[4]; |
252 | frame->wWidth = get_unaligned_le16(p: &buffer[5]) * width_multiplier; |
253 | frame->wHeight = get_unaligned_le16(p: &buffer[7]); |
254 | frame->dwMinBitRate = get_unaligned_le32(p: &buffer[9]); |
255 | frame->dwMaxBitRate = get_unaligned_le32(p: &buffer[13]); |
256 | if (ftype != UVC_VS_FRAME_FRAME_BASED) { |
257 | frame->dwMaxVideoFrameBufferSize = |
258 | get_unaligned_le32(p: &buffer[17]); |
259 | frame->dwDefaultFrameInterval = |
260 | get_unaligned_le32(p: &buffer[21]); |
261 | frame->bFrameIntervalType = buffer[25]; |
262 | } else { |
263 | frame->dwMaxVideoFrameBufferSize = 0; |
264 | frame->dwDefaultFrameInterval = |
265 | get_unaligned_le32(p: &buffer[17]); |
266 | frame->bFrameIntervalType = buffer[21]; |
267 | } |
268 | |
269 | /* |
270 | * Copy the frame intervals. |
271 | * |
272 | * Some bogus devices report dwMinFrameInterval equal to |
273 | * dwMaxFrameInterval and have dwFrameIntervalStep set to zero. Setting |
274 | * all null intervals to 1 fixes the problem and some other divisions |
275 | * by zero that could happen. |
276 | */ |
277 | frame->dwFrameInterval = *intervals; |
278 | |
279 | for (i = 0; i < n; ++i) { |
280 | interval = get_unaligned_le32(p: &buffer[26 + 4 * i]); |
281 | (*intervals)[i] = interval ? interval : 1; |
282 | } |
283 | |
284 | /* |
285 | * Apply more fixes, quirks and workarounds to handle incorrect or |
286 | * broken descriptors. |
287 | */ |
288 | |
289 | /* |
290 | * Several UVC chipsets screw up dwMaxVideoFrameBufferSize completely. |
291 | * Observed behaviours range from setting the value to 1.1x the actual |
292 | * frame size to hardwiring the 16 low bits to 0. This results in a |
293 | * higher than necessary memory usage as well as a wrong image size |
294 | * information. For uncompressed formats this can be fixed by computing |
295 | * the value from the frame size. |
296 | */ |
297 | if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) |
298 | frame->dwMaxVideoFrameBufferSize = format->bpp * frame->wWidth |
299 | * frame->wHeight / 8; |
300 | |
301 | /* |
302 | * Clamp the default frame interval to the boundaries. A zero |
303 | * bFrameIntervalType value indicates a continuous frame interval |
304 | * range, with dwFrameInterval[0] storing the minimum value and |
305 | * dwFrameInterval[1] storing the maximum value. |
306 | */ |
307 | maxIntervalIndex = frame->bFrameIntervalType ? n - 1 : 1; |
308 | frame->dwDefaultFrameInterval = |
309 | clamp(frame->dwDefaultFrameInterval, |
310 | frame->dwFrameInterval[0], |
311 | frame->dwFrameInterval[maxIntervalIndex]); |
312 | |
313 | /* |
314 | * Some devices report frame intervals that are not functional. If the |
315 | * corresponding quirk is set, restrict operation to the first interval |
316 | * only. |
317 | */ |
318 | if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { |
319 | frame->bFrameIntervalType = 1; |
320 | (*intervals)[0] = frame->dwDefaultFrameInterval; |
321 | } |
322 | |
323 | uvc_dbg(dev, DESCR, "- %ux%u (%u.%u fps)\n", |
324 | frame->wWidth, frame->wHeight, |
325 | 10000000 / frame->dwDefaultFrameInterval, |
326 | (100000000 / frame->dwDefaultFrameInterval) % 10); |
327 | |
328 | *intervals += n; |
329 | |
330 | return buffer[0]; |
331 | } |
332 | |
333 | static int uvc_parse_format(struct uvc_device *dev, |
334 | struct uvc_streaming *streaming, struct uvc_format *format, |
335 | struct uvc_frame *frames, u32 **intervals, const unsigned char *buffer, |
336 | int buflen) |
337 | { |
338 | struct usb_host_interface *alts = streaming->intf->cur_altsetting; |
339 | const struct uvc_format_desc *fmtdesc; |
340 | struct uvc_frame *frame; |
341 | const unsigned char *start = buffer; |
342 | unsigned int width_multiplier = 1; |
343 | unsigned int i, n; |
344 | u8 ftype; |
345 | int ret; |
346 | |
347 | format->type = buffer[2]; |
348 | format->index = buffer[3]; |
349 | format->frames = frames; |
350 | |
351 | switch (buffer[2]) { |
352 | case UVC_VS_FORMAT_UNCOMPRESSED: |
353 | case UVC_VS_FORMAT_FRAME_BASED: |
354 | n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; |
355 | if (buflen < n) { |
356 | uvc_dbg(dev, DESCR, |
357 | "device %d videostreaming interface %d FORMAT error\n", |
358 | dev->udev->devnum, |
359 | alts->desc.bInterfaceNumber); |
360 | return -EINVAL; |
361 | } |
362 | |
363 | /* Find the format descriptor from its GUID. */ |
364 | fmtdesc = uvc_format_by_guid(guid: &buffer[5]); |
365 | |
366 | if (!fmtdesc) { |
367 | /* |
368 | * Unknown video formats are not fatal errors, the |
369 | * caller will skip this descriptor. |
370 | */ |
371 | dev_info(&streaming->intf->dev, |
372 | "Unknown video format %pUl\n", &buffer[5]); |
373 | return 0; |
374 | } |
375 | |
376 | format->fcc = fmtdesc->fcc; |
377 | format->bpp = buffer[21]; |
378 | |
379 | /* |
380 | * Some devices report a format that doesn't match what they |
381 | * really send. |
382 | */ |
383 | if (dev->quirks & UVC_QUIRK_FORCE_Y8) { |
384 | if (format->fcc == V4L2_PIX_FMT_YUYV) { |
385 | format->fcc = V4L2_PIX_FMT_GREY; |
386 | format->bpp = 8; |
387 | width_multiplier = 2; |
388 | } |
389 | } |
390 | |
391 | /* Some devices report bpp that doesn't match the format. */ |
392 | if (dev->quirks & UVC_QUIRK_FORCE_BPP) { |
393 | const struct v4l2_format_info *info = |
394 | v4l2_format_info(format: format->fcc); |
395 | |
396 | if (info) { |
397 | unsigned int div = info->hdiv * info->vdiv; |
398 | |
399 | n = info->bpp[0] * div; |
400 | for (i = 1; i < info->comp_planes; i++) |
401 | n += info->bpp[i]; |
402 | |
403 | format->bpp = DIV_ROUND_UP(8 * n, div); |
404 | } |
405 | } |
406 | |
407 | if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { |
408 | ftype = UVC_VS_FRAME_UNCOMPRESSED; |
409 | } else { |
410 | ftype = UVC_VS_FRAME_FRAME_BASED; |
411 | if (buffer[27]) |
412 | format->flags = UVC_FMT_FLAG_COMPRESSED; |
413 | } |
414 | break; |
415 | |
416 | case UVC_VS_FORMAT_MJPEG: |
417 | if (buflen < 11) { |
418 | uvc_dbg(dev, DESCR, |
419 | "device %d videostreaming interface %d FORMAT error\n", |
420 | dev->udev->devnum, |
421 | alts->desc.bInterfaceNumber); |
422 | return -EINVAL; |
423 | } |
424 | |
425 | format->fcc = V4L2_PIX_FMT_MJPEG; |
426 | format->flags = UVC_FMT_FLAG_COMPRESSED; |
427 | format->bpp = 0; |
428 | ftype = UVC_VS_FRAME_MJPEG; |
429 | break; |
430 | |
431 | case UVC_VS_FORMAT_DV: |
432 | if (buflen < 9) { |
433 | uvc_dbg(dev, DESCR, |
434 | "device %d videostreaming interface %d FORMAT error\n", |
435 | dev->udev->devnum, |
436 | alts->desc.bInterfaceNumber); |
437 | return -EINVAL; |
438 | } |
439 | |
440 | if ((buffer[8] & 0x7f) > 2) { |
441 | uvc_dbg(dev, DESCR, |
442 | "device %d videostreaming interface %d: unknown DV format %u\n", |
443 | dev->udev->devnum, |
444 | alts->desc.bInterfaceNumber, buffer[8]); |
445 | return -EINVAL; |
446 | } |
447 | |
448 | format->fcc = V4L2_PIX_FMT_DV; |
449 | format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; |
450 | format->bpp = 0; |
451 | ftype = 0; |
452 | |
453 | /* Create a dummy frame descriptor. */ |
454 | frame = &frames[0]; |
455 | memset(frame, 0, sizeof(*frame)); |
456 | frame->bFrameIntervalType = 1; |
457 | frame->dwDefaultFrameInterval = 1; |
458 | frame->dwFrameInterval = *intervals; |
459 | *(*intervals)++ = 1; |
460 | format->nframes = 1; |
461 | break; |
462 | |
463 | case UVC_VS_FORMAT_MPEG2TS: |
464 | case UVC_VS_FORMAT_STREAM_BASED: |
465 | /* Not supported yet. */ |
466 | default: |
467 | uvc_dbg(dev, DESCR, |
468 | "device %d videostreaming interface %d unsupported format %u\n", |
469 | dev->udev->devnum, alts->desc.bInterfaceNumber, |
470 | buffer[2]); |
471 | return -EINVAL; |
472 | } |
473 | |
474 | uvc_dbg(dev, DESCR, "Found format %p4cc", &format->fcc); |
475 | |
476 | buflen -= buffer[0]; |
477 | buffer += buffer[0]; |
478 | |
479 | /* |
480 | * Parse the frame descriptors. Only uncompressed, MJPEG and frame |
481 | * based formats have frame descriptors. |
482 | */ |
483 | if (ftype) { |
484 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
485 | buffer[2] == ftype) { |
486 | frame = &frames[format->nframes]; |
487 | ret = uvc_parse_frame(dev, streaming, format, frame, |
488 | intervals, ftype, width_multiplier, |
489 | buffer, buflen); |
490 | if (ret < 0) |
491 | return ret; |
492 | format->nframes++; |
493 | buflen -= ret; |
494 | buffer += ret; |
495 | } |
496 | } |
497 | |
498 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
499 | buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { |
500 | buflen -= buffer[0]; |
501 | buffer += buffer[0]; |
502 | } |
503 | |
504 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
505 | buffer[2] == UVC_VS_COLORFORMAT) { |
506 | if (buflen < 6) { |
507 | uvc_dbg(dev, DESCR, |
508 | "device %d videostreaming interface %d COLORFORMAT error\n", |
509 | dev->udev->devnum, |
510 | alts->desc.bInterfaceNumber); |
511 | return -EINVAL; |
512 | } |
513 | |
514 | format->colorspace = uvc_colorspace(primaries: buffer[3]); |
515 | format->xfer_func = uvc_xfer_func(transfer_characteristics: buffer[4]); |
516 | format->ycbcr_enc = uvc_ycbcr_enc(matrix_coefficients: buffer[5]); |
517 | |
518 | buflen -= buffer[0]; |
519 | buffer += buffer[0]; |
520 | } else { |
521 | format->colorspace = V4L2_COLORSPACE_SRGB; |
522 | } |
523 | |
524 | return buffer - start; |
525 | } |
526 | |
527 | static int uvc_parse_streaming(struct uvc_device *dev, |
528 | struct usb_interface *intf) |
529 | { |
530 | struct uvc_streaming *streaming = NULL; |
531 | struct uvc_format *format; |
532 | struct uvc_frame *frame; |
533 | struct usb_host_interface *alts = &intf->altsetting[0]; |
534 | const unsigned char *_buffer, *buffer = alts->extra; |
535 | int _buflen, buflen = alts->extralen; |
536 | unsigned int nformats = 0, nframes = 0, nintervals = 0; |
537 | unsigned int size, i, n, p; |
538 | u32 *interval; |
539 | u16 psize; |
540 | int ret = -EINVAL; |
541 | |
542 | if (intf->cur_altsetting->desc.bInterfaceSubClass |
543 | != UVC_SC_VIDEOSTREAMING) { |
544 | uvc_dbg(dev, DESCR, |
545 | "device %d interface %d isn't a video streaming interface\n", |
546 | dev->udev->devnum, |
547 | intf->altsetting[0].desc.bInterfaceNumber); |
548 | return -EINVAL; |
549 | } |
550 | |
551 | if (usb_driver_claim_interface(driver: &uvc_driver, iface: intf, data: dev)) { |
552 | uvc_dbg(dev, DESCR, |
553 | "device %d interface %d is already claimed\n", |
554 | dev->udev->devnum, |
555 | intf->altsetting[0].desc.bInterfaceNumber); |
556 | return -EINVAL; |
557 | } |
558 | |
559 | streaming = uvc_stream_new(dev, intf); |
560 | if (streaming == NULL) { |
561 | usb_driver_release_interface(driver: &uvc_driver, iface: intf); |
562 | return -ENOMEM; |
563 | } |
564 | |
565 | /* |
566 | * The Pico iMage webcam has its class-specific interface descriptors |
567 | * after the endpoint descriptors. |
568 | */ |
569 | if (buflen == 0) { |
570 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { |
571 | struct usb_host_endpoint *ep = &alts->endpoint[i]; |
572 | |
573 | if (ep->extralen == 0) |
574 | continue; |
575 | |
576 | if (ep->extralen > 2 && |
577 | ep->extra[1] == USB_DT_CS_INTERFACE) { |
578 | uvc_dbg(dev, DESCR, |
579 | "trying extra data from endpoint %u\n", |
580 | i); |
581 | buffer = alts->endpoint[i].extra; |
582 | buflen = alts->endpoint[i].extralen; |
583 | break; |
584 | } |
585 | } |
586 | } |
587 | |
588 | /* Skip the standard interface descriptors. */ |
589 | while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { |
590 | buflen -= buffer[0]; |
591 | buffer += buffer[0]; |
592 | } |
593 | |
594 | if (buflen <= 2) { |
595 | uvc_dbg(dev, DESCR, |
596 | "no class-specific streaming interface descriptors found\n"); |
597 | goto error; |
598 | } |
599 | |
600 | /* Parse the header descriptor. */ |
601 | switch (buffer[2]) { |
602 | case UVC_VS_OUTPUT_HEADER: |
603 | streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
604 | size = 9; |
605 | break; |
606 | |
607 | case UVC_VS_INPUT_HEADER: |
608 | streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
609 | size = 13; |
610 | break; |
611 | |
612 | default: |
613 | uvc_dbg(dev, DESCR, |
614 | "device %d videostreaming interface %d HEADER descriptor not found\n", |
615 | dev->udev->devnum, alts->desc.bInterfaceNumber); |
616 | goto error; |
617 | } |
618 | |
619 | p = buflen >= 4 ? buffer[3] : 0; |
620 | n = buflen >= size ? buffer[size-1] : 0; |
621 | |
622 | if (buflen < size + p*n) { |
623 | uvc_dbg(dev, DESCR, |
624 | "device %d videostreaming interface %d HEADER descriptor is invalid\n", |
625 | dev->udev->devnum, alts->desc.bInterfaceNumber); |
626 | goto error; |
627 | } |
628 | |
629 | streaming->header.bNumFormats = p; |
630 | streaming->header.bEndpointAddress = buffer[6]; |
631 | if (buffer[2] == UVC_VS_INPUT_HEADER) { |
632 | streaming->header.bmInfo = buffer[7]; |
633 | streaming->header.bTerminalLink = buffer[8]; |
634 | streaming->header.bStillCaptureMethod = buffer[9]; |
635 | streaming->header.bTriggerSupport = buffer[10]; |
636 | streaming->header.bTriggerUsage = buffer[11]; |
637 | } else { |
638 | streaming->header.bTerminalLink = buffer[7]; |
639 | } |
640 | streaming->header.bControlSize = n; |
641 | |
642 | streaming->header.bmaControls = kmemdup(&buffer[size], p * n, |
643 | GFP_KERNEL); |
644 | if (streaming->header.bmaControls == NULL) { |
645 | ret = -ENOMEM; |
646 | goto error; |
647 | } |
648 | |
649 | buflen -= buffer[0]; |
650 | buffer += buffer[0]; |
651 | |
652 | _buffer = buffer; |
653 | _buflen = buflen; |
654 | |
655 | /* Count the format and frame descriptors. */ |
656 | while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { |
657 | switch (_buffer[2]) { |
658 | case UVC_VS_FORMAT_UNCOMPRESSED: |
659 | case UVC_VS_FORMAT_MJPEG: |
660 | case UVC_VS_FORMAT_FRAME_BASED: |
661 | nformats++; |
662 | break; |
663 | |
664 | case UVC_VS_FORMAT_DV: |
665 | /* |
666 | * DV format has no frame descriptor. We will create a |
667 | * dummy frame descriptor with a dummy frame interval. |
668 | */ |
669 | nformats++; |
670 | nframes++; |
671 | nintervals++; |
672 | break; |
673 | |
674 | case UVC_VS_FORMAT_MPEG2TS: |
675 | case UVC_VS_FORMAT_STREAM_BASED: |
676 | uvc_dbg(dev, DESCR, |
677 | "device %d videostreaming interface %d FORMAT %u is not supported\n", |
678 | dev->udev->devnum, |
679 | alts->desc.bInterfaceNumber, _buffer[2]); |
680 | break; |
681 | |
682 | case UVC_VS_FRAME_UNCOMPRESSED: |
683 | case UVC_VS_FRAME_MJPEG: |
684 | nframes++; |
685 | if (_buflen > 25) |
686 | nintervals += _buffer[25] ? _buffer[25] : 3; |
687 | break; |
688 | |
689 | case UVC_VS_FRAME_FRAME_BASED: |
690 | nframes++; |
691 | if (_buflen > 21) |
692 | nintervals += _buffer[21] ? _buffer[21] : 3; |
693 | break; |
694 | } |
695 | |
696 | _buflen -= _buffer[0]; |
697 | _buffer += _buffer[0]; |
698 | } |
699 | |
700 | if (nformats == 0) { |
701 | uvc_dbg(dev, DESCR, |
702 | "device %d videostreaming interface %d has no supported formats defined\n", |
703 | dev->udev->devnum, alts->desc.bInterfaceNumber); |
704 | goto error; |
705 | } |
706 | |
707 | /* |
708 | * Allocate memory for the formats, the frames and the intervals, |
709 | * plus any required padding to guarantee that everything has the |
710 | * correct alignment. |
711 | */ |
712 | size = nformats * sizeof(*format); |
713 | size = ALIGN(size, __alignof__(*frame)) + nframes * sizeof(*frame); |
714 | size = ALIGN(size, __alignof__(*interval)) |
715 | + nintervals * sizeof(*interval); |
716 | |
717 | format = kzalloc(size, GFP_KERNEL); |
718 | if (!format) { |
719 | ret = -ENOMEM; |
720 | goto error; |
721 | } |
722 | |
723 | frame = (void *)format + nformats * sizeof(*format); |
724 | frame = PTR_ALIGN(frame, __alignof__(*frame)); |
725 | interval = (void *)frame + nframes * sizeof(*frame); |
726 | interval = PTR_ALIGN(interval, __alignof__(*interval)); |
727 | |
728 | streaming->formats = format; |
729 | streaming->nformats = 0; |
730 | |
731 | /* Parse the format descriptors. */ |
732 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { |
733 | switch (buffer[2]) { |
734 | case UVC_VS_FORMAT_UNCOMPRESSED: |
735 | case UVC_VS_FORMAT_MJPEG: |
736 | case UVC_VS_FORMAT_DV: |
737 | case UVC_VS_FORMAT_FRAME_BASED: |
738 | ret = uvc_parse_format(dev, streaming, format, frames: frame, |
739 | intervals: &interval, buffer, buflen); |
740 | if (ret < 0) |
741 | goto error; |
742 | if (!ret) |
743 | break; |
744 | |
745 | streaming->nformats++; |
746 | frame += format->nframes; |
747 | format++; |
748 | |
749 | buflen -= ret; |
750 | buffer += ret; |
751 | continue; |
752 | |
753 | default: |
754 | break; |
755 | } |
756 | |
757 | buflen -= buffer[0]; |
758 | buffer += buffer[0]; |
759 | } |
760 | |
761 | if (buflen) |
762 | uvc_dbg(dev, DESCR, |
763 | "device %d videostreaming interface %d has %u bytes of trailing descriptor garbage\n", |
764 | dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); |
765 | |
766 | /* Parse the alternate settings to find the maximum bandwidth. */ |
767 | for (i = 0; i < intf->num_altsetting; ++i) { |
768 | struct usb_host_endpoint *ep; |
769 | |
770 | alts = &intf->altsetting[i]; |
771 | ep = uvc_find_endpoint(alts, |
772 | epaddr: streaming->header.bEndpointAddress); |
773 | if (ep == NULL) |
774 | continue; |
775 | psize = uvc_endpoint_max_bpi(dev: dev->udev, ep); |
776 | if (psize > streaming->maxpsize) |
777 | streaming->maxpsize = psize; |
778 | } |
779 | |
780 | list_add_tail(new: &streaming->list, head: &dev->streams); |
781 | return 0; |
782 | |
783 | error: |
784 | usb_driver_release_interface(driver: &uvc_driver, iface: intf); |
785 | uvc_stream_delete(stream: streaming); |
786 | return ret; |
787 | } |
788 | |
789 | static const u8 uvc_camera_guid[16] = UVC_GUID_UVC_CAMERA; |
790 | static const u8 uvc_gpio_guid[16] = UVC_GUID_EXT_GPIO_CONTROLLER; |
791 | static const u8 uvc_media_transport_input_guid[16] = |
792 | UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT; |
793 | static const u8 uvc_processing_guid[16] = UVC_GUID_UVC_PROCESSING; |
794 | |
795 | static struct uvc_entity *uvc_alloc_entity(u16 type, u16 id, |
796 | unsigned int num_pads, unsigned int extra_size) |
797 | { |
798 | struct uvc_entity *entity; |
799 | unsigned int num_inputs; |
800 | unsigned int size; |
801 | unsigned int i; |
802 | |
803 | extra_size = roundup(extra_size, sizeof(*entity->pads)); |
804 | if (num_pads) |
805 | num_inputs = type & UVC_TERM_OUTPUT ? num_pads : num_pads - 1; |
806 | else |
807 | num_inputs = 0; |
808 | size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads |
809 | + num_inputs; |
810 | entity = kzalloc(size, GFP_KERNEL); |
811 | if (entity == NULL) |
812 | return NULL; |
813 | |
814 | entity->id = id; |
815 | entity->type = type; |
816 | |
817 | /* |
818 | * Set the GUID for standard entity types. For extension units, the GUID |
819 | * is initialized by the caller. |
820 | */ |
821 | switch (type) { |
822 | case UVC_EXT_GPIO_UNIT: |
823 | memcpy(entity->guid, uvc_gpio_guid, 16); |
824 | break; |
825 | case UVC_ITT_CAMERA: |
826 | memcpy(entity->guid, uvc_camera_guid, 16); |
827 | break; |
828 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
829 | memcpy(entity->guid, uvc_media_transport_input_guid, 16); |
830 | break; |
831 | case UVC_VC_PROCESSING_UNIT: |
832 | memcpy(entity->guid, uvc_processing_guid, 16); |
833 | break; |
834 | } |
835 | |
836 | entity->num_links = 0; |
837 | entity->num_pads = num_pads; |
838 | entity->pads = ((void *)(entity + 1)) + extra_size; |
839 | |
840 | for (i = 0; i < num_inputs; ++i) |
841 | entity->pads[i].flags = MEDIA_PAD_FL_SINK; |
842 | if (!UVC_ENTITY_IS_OTERM(entity) && num_pads) |
843 | entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; |
844 | |
845 | entity->bNrInPins = num_inputs; |
846 | entity->baSourceID = (u8 *)(&entity->pads[num_pads]); |
847 | |
848 | return entity; |
849 | } |
850 | |
851 | static void uvc_entity_set_name(struct uvc_device *dev, struct uvc_entity *entity, |
852 | const char *type_name, u8 string_id) |
853 | { |
854 | int ret; |
855 | |
856 | /* |
857 | * First attempt to read the entity name from the device. If the entity |
858 | * has no associated string, or if reading the string fails (most |
859 | * likely due to a buggy firmware), fall back to default names based on |
860 | * the entity type. |
861 | */ |
862 | if (string_id) { |
863 | ret = usb_string(dev: dev->udev, index: string_id, buf: entity->name, |
864 | size: sizeof(entity->name)); |
865 | if (!ret) |
866 | return; |
867 | } |
868 | |
869 | sprintf(buf: entity->name, fmt: "%s %u", type_name, entity->id); |
870 | } |
871 | |
872 | /* Parse vendor-specific extensions. */ |
873 | static int uvc_parse_vendor_control(struct uvc_device *dev, |
874 | const unsigned char *buffer, int buflen) |
875 | { |
876 | struct usb_device *udev = dev->udev; |
877 | struct usb_host_interface *alts = dev->intf->cur_altsetting; |
878 | struct uvc_entity *unit; |
879 | unsigned int n, p; |
880 | int handled = 0; |
881 | |
882 | switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { |
883 | case 0x046d: /* Logitech */ |
884 | if (buffer[1] != 0x41 || buffer[2] != 0x01) |
885 | break; |
886 | |
887 | /* |
888 | * Logitech implements several vendor specific functions |
889 | * through vendor specific extension units (LXU). |
890 | * |
891 | * The LXU descriptors are similar to XU descriptors |
892 | * (see "USB Device Video Class for Video Devices", section |
893 | * 3.7.2.6 "Extension Unit Descriptor") with the following |
894 | * differences: |
895 | * |
896 | * ---------------------------------------------------------- |
897 | * 0 bLength 1 Number |
898 | * Size of this descriptor, in bytes: 24+p+n*2 |
899 | * ---------------------------------------------------------- |
900 | * 23+p+n bmControlsType N Bitmap |
901 | * Individual bits in the set are defined: |
902 | * 0: Absolute |
903 | * 1: Relative |
904 | * |
905 | * This bitset is mapped exactly the same as bmControls. |
906 | * ---------------------------------------------------------- |
907 | * 23+p+n*2 bReserved 1 Boolean |
908 | * ---------------------------------------------------------- |
909 | * 24+p+n*2 iExtension 1 Index |
910 | * Index of a string descriptor that describes this |
911 | * extension unit. |
912 | * ---------------------------------------------------------- |
913 | */ |
914 | p = buflen >= 22 ? buffer[21] : 0; |
915 | n = buflen >= 25 + p ? buffer[22+p] : 0; |
916 | |
917 | if (buflen < 25 + p + 2*n) { |
918 | uvc_dbg(dev, DESCR, |
919 | "device %d videocontrol interface %d EXTENSION_UNIT error\n", |
920 | udev->devnum, alts->desc.bInterfaceNumber); |
921 | break; |
922 | } |
923 | |
924 | unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, id: buffer[3], |
925 | num_pads: p + 1, extra_size: 2*n); |
926 | if (unit == NULL) |
927 | return -ENOMEM; |
928 | |
929 | memcpy(unit->guid, &buffer[4], 16); |
930 | unit->extension.bNumControls = buffer[20]; |
931 | memcpy(unit->baSourceID, &buffer[22], p); |
932 | unit->extension.bControlSize = buffer[22+p]; |
933 | unit->extension.bmControls = (u8 *)unit + sizeof(*unit); |
934 | unit->extension.bmControlsType = (u8 *)unit + sizeof(*unit) |
935 | + n; |
936 | memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); |
937 | |
938 | uvc_entity_set_name(dev, entity: unit, type_name: "Extension", string_id: buffer[24+p+2*n]); |
939 | |
940 | list_add_tail(new: &unit->list, head: &dev->entities); |
941 | handled = 1; |
942 | break; |
943 | } |
944 | |
945 | return handled; |
946 | } |
947 | |
948 | static int uvc_parse_standard_control(struct uvc_device *dev, |
949 | const unsigned char *buffer, int buflen) |
950 | { |
951 | struct usb_device *udev = dev->udev; |
952 | struct uvc_entity *unit, *term; |
953 | struct usb_interface *intf; |
954 | struct usb_host_interface *alts = dev->intf->cur_altsetting; |
955 | unsigned int i, n, p, len; |
956 | const char *type_name; |
957 | u16 type; |
958 | |
959 | switch (buffer[2]) { |
960 | case UVC_VC_HEADER: |
961 | n = buflen >= 12 ? buffer[11] : 0; |
962 | |
963 | if (buflen < 12 + n) { |
964 | uvc_dbg(dev, DESCR, |
965 | "device %d videocontrol interface %d HEADER error\n", |
966 | udev->devnum, alts->desc.bInterfaceNumber); |
967 | return -EINVAL; |
968 | } |
969 | |
970 | dev->uvc_version = get_unaligned_le16(p: &buffer[3]); |
971 | dev->clock_frequency = get_unaligned_le32(p: &buffer[7]); |
972 | |
973 | /* Parse all USB Video Streaming interfaces. */ |
974 | for (i = 0; i < n; ++i) { |
975 | intf = usb_ifnum_to_if(dev: udev, ifnum: buffer[12+i]); |
976 | if (intf == NULL) { |
977 | uvc_dbg(dev, DESCR, |
978 | "device %d interface %d doesn't exists\n", |
979 | udev->devnum, i); |
980 | continue; |
981 | } |
982 | |
983 | uvc_parse_streaming(dev, intf); |
984 | } |
985 | break; |
986 | |
987 | case UVC_VC_INPUT_TERMINAL: |
988 | if (buflen < 8) { |
989 | uvc_dbg(dev, DESCR, |
990 | "device %d videocontrol interface %d INPUT_TERMINAL error\n", |
991 | udev->devnum, alts->desc.bInterfaceNumber); |
992 | return -EINVAL; |
993 | } |
994 | |
995 | /* |
996 | * Reject invalid terminal types that would cause issues: |
997 | * |
998 | * - The high byte must be non-zero, otherwise it would be |
999 | * confused with a unit. |
1000 | * |
1001 | * - Bit 15 must be 0, as we use it internally as a terminal |
1002 | * direction flag. |
1003 | * |
1004 | * Other unknown types are accepted. |
1005 | */ |
1006 | type = get_unaligned_le16(p: &buffer[4]); |
1007 | if ((type & 0x7f00) == 0 || (type & 0x8000) != 0) { |
1008 | uvc_dbg(dev, DESCR, |
1009 | "device %d videocontrol interface %d INPUT_TERMINAL %d has invalid type 0x%04x, skipping\n", |
1010 | udev->devnum, alts->desc.bInterfaceNumber, |
1011 | buffer[3], type); |
1012 | return 0; |
1013 | } |
1014 | |
1015 | n = 0; |
1016 | p = 0; |
1017 | len = 8; |
1018 | |
1019 | if (type == UVC_ITT_CAMERA) { |
1020 | n = buflen >= 15 ? buffer[14] : 0; |
1021 | len = 15; |
1022 | |
1023 | } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
1024 | n = buflen >= 9 ? buffer[8] : 0; |
1025 | p = buflen >= 10 + n ? buffer[9+n] : 0; |
1026 | len = 10; |
1027 | } |
1028 | |
1029 | if (buflen < len + n + p) { |
1030 | uvc_dbg(dev, DESCR, |
1031 | "device %d videocontrol interface %d INPUT_TERMINAL error\n", |
1032 | udev->devnum, alts->desc.bInterfaceNumber); |
1033 | return -EINVAL; |
1034 | } |
1035 | |
1036 | term = uvc_alloc_entity(type: type | UVC_TERM_INPUT, id: buffer[3], |
1037 | num_pads: 1, extra_size: n + p); |
1038 | if (term == NULL) |
1039 | return -ENOMEM; |
1040 | |
1041 | if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { |
1042 | term->camera.bControlSize = n; |
1043 | term->camera.bmControls = (u8 *)term + sizeof(*term); |
1044 | term->camera.wObjectiveFocalLengthMin = |
1045 | get_unaligned_le16(p: &buffer[8]); |
1046 | term->camera.wObjectiveFocalLengthMax = |
1047 | get_unaligned_le16(p: &buffer[10]); |
1048 | term->camera.wOcularFocalLength = |
1049 | get_unaligned_le16(p: &buffer[12]); |
1050 | memcpy(term->camera.bmControls, &buffer[15], n); |
1051 | } else if (UVC_ENTITY_TYPE(term) == |
1052 | UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
1053 | term->media.bControlSize = n; |
1054 | term->media.bmControls = (u8 *)term + sizeof(*term); |
1055 | term->media.bTransportModeSize = p; |
1056 | term->media.bmTransportModes = (u8 *)term |
1057 | + sizeof(*term) + n; |
1058 | memcpy(term->media.bmControls, &buffer[9], n); |
1059 | memcpy(term->media.bmTransportModes, &buffer[10+n], p); |
1060 | } |
1061 | |
1062 | if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) |
1063 | type_name = "Camera"; |
1064 | else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) |
1065 | type_name = "Media"; |
1066 | else |
1067 | type_name = "Input"; |
1068 | |
1069 | uvc_entity_set_name(dev, entity: term, type_name, string_id: buffer[7]); |
1070 | |
1071 | list_add_tail(new: &term->list, head: &dev->entities); |
1072 | break; |
1073 | |
1074 | case UVC_VC_OUTPUT_TERMINAL: |
1075 | if (buflen < 9) { |
1076 | uvc_dbg(dev, DESCR, |
1077 | "device %d videocontrol interface %d OUTPUT_TERMINAL error\n", |
1078 | udev->devnum, alts->desc.bInterfaceNumber); |
1079 | return -EINVAL; |
1080 | } |
1081 | |
1082 | /* |
1083 | * Make sure the terminal type MSB is not null, otherwise it |
1084 | * could be confused with a unit. |
1085 | */ |
1086 | type = get_unaligned_le16(p: &buffer[4]); |
1087 | if ((type & 0xff00) == 0) { |
1088 | uvc_dbg(dev, DESCR, |
1089 | "device %d videocontrol interface %d OUTPUT_TERMINAL %d has invalid type 0x%04x, skipping\n", |
1090 | udev->devnum, alts->desc.bInterfaceNumber, |
1091 | buffer[3], type); |
1092 | return 0; |
1093 | } |
1094 | |
1095 | term = uvc_alloc_entity(type: type | UVC_TERM_OUTPUT, id: buffer[3], |
1096 | num_pads: 1, extra_size: 0); |
1097 | if (term == NULL) |
1098 | return -ENOMEM; |
1099 | |
1100 | memcpy(term->baSourceID, &buffer[7], 1); |
1101 | |
1102 | uvc_entity_set_name(dev, entity: term, type_name: "Output", string_id: buffer[8]); |
1103 | |
1104 | list_add_tail(new: &term->list, head: &dev->entities); |
1105 | break; |
1106 | |
1107 | case UVC_VC_SELECTOR_UNIT: |
1108 | p = buflen >= 5 ? buffer[4] : 0; |
1109 | |
1110 | if (buflen < 5 || buflen < 6 + p) { |
1111 | uvc_dbg(dev, DESCR, |
1112 | "device %d videocontrol interface %d SELECTOR_UNIT error\n", |
1113 | udev->devnum, alts->desc.bInterfaceNumber); |
1114 | return -EINVAL; |
1115 | } |
1116 | |
1117 | unit = uvc_alloc_entity(type: buffer[2], id: buffer[3], num_pads: p + 1, extra_size: 0); |
1118 | if (unit == NULL) |
1119 | return -ENOMEM; |
1120 | |
1121 | memcpy(unit->baSourceID, &buffer[5], p); |
1122 | |
1123 | uvc_entity_set_name(dev, entity: unit, type_name: "Selector", string_id: buffer[5+p]); |
1124 | |
1125 | list_add_tail(new: &unit->list, head: &dev->entities); |
1126 | break; |
1127 | |
1128 | case UVC_VC_PROCESSING_UNIT: |
1129 | n = buflen >= 8 ? buffer[7] : 0; |
1130 | p = dev->uvc_version >= 0x0110 ? 10 : 9; |
1131 | |
1132 | if (buflen < p + n) { |
1133 | uvc_dbg(dev, DESCR, |
1134 | "device %d videocontrol interface %d PROCESSING_UNIT error\n", |
1135 | udev->devnum, alts->desc.bInterfaceNumber); |
1136 | return -EINVAL; |
1137 | } |
1138 | |
1139 | unit = uvc_alloc_entity(type: buffer[2], id: buffer[3], num_pads: 2, extra_size: n); |
1140 | if (unit == NULL) |
1141 | return -ENOMEM; |
1142 | |
1143 | memcpy(unit->baSourceID, &buffer[4], 1); |
1144 | unit->processing.wMaxMultiplier = |
1145 | get_unaligned_le16(p: &buffer[5]); |
1146 | unit->processing.bControlSize = buffer[7]; |
1147 | unit->processing.bmControls = (u8 *)unit + sizeof(*unit); |
1148 | memcpy(unit->processing.bmControls, &buffer[8], n); |
1149 | if (dev->uvc_version >= 0x0110) |
1150 | unit->processing.bmVideoStandards = buffer[9+n]; |
1151 | |
1152 | uvc_entity_set_name(dev, entity: unit, type_name: "Processing", string_id: buffer[8+n]); |
1153 | |
1154 | list_add_tail(new: &unit->list, head: &dev->entities); |
1155 | break; |
1156 | |
1157 | case UVC_VC_EXTENSION_UNIT: |
1158 | p = buflen >= 22 ? buffer[21] : 0; |
1159 | n = buflen >= 24 + p ? buffer[22+p] : 0; |
1160 | |
1161 | if (buflen < 24 + p + n) { |
1162 | uvc_dbg(dev, DESCR, |
1163 | "device %d videocontrol interface %d EXTENSION_UNIT error\n", |
1164 | udev->devnum, alts->desc.bInterfaceNumber); |
1165 | return -EINVAL; |
1166 | } |
1167 | |
1168 | unit = uvc_alloc_entity(type: buffer[2], id: buffer[3], num_pads: p + 1, extra_size: n); |
1169 | if (unit == NULL) |
1170 | return -ENOMEM; |
1171 | |
1172 | memcpy(unit->guid, &buffer[4], 16); |
1173 | unit->extension.bNumControls = buffer[20]; |
1174 | memcpy(unit->baSourceID, &buffer[22], p); |
1175 | unit->extension.bControlSize = buffer[22+p]; |
1176 | unit->extension.bmControls = (u8 *)unit + sizeof(*unit); |
1177 | memcpy(unit->extension.bmControls, &buffer[23+p], n); |
1178 | |
1179 | uvc_entity_set_name(dev, entity: unit, type_name: "Extension", string_id: buffer[23+p+n]); |
1180 | |
1181 | list_add_tail(new: &unit->list, head: &dev->entities); |
1182 | break; |
1183 | |
1184 | default: |
1185 | uvc_dbg(dev, DESCR, |
1186 | "Found an unknown CS_INTERFACE descriptor (%u)\n", |
1187 | buffer[2]); |
1188 | break; |
1189 | } |
1190 | |
1191 | return 0; |
1192 | } |
1193 | |
1194 | static int uvc_parse_control(struct uvc_device *dev) |
1195 | { |
1196 | struct usb_host_interface *alts = dev->intf->cur_altsetting; |
1197 | const unsigned char *buffer = alts->extra; |
1198 | int buflen = alts->extralen; |
1199 | int ret; |
1200 | |
1201 | /* |
1202 | * Parse the default alternate setting only, as the UVC specification |
1203 | * defines a single alternate setting, the default alternate setting |
1204 | * zero. |
1205 | */ |
1206 | |
1207 | while (buflen > 2) { |
1208 | if (uvc_parse_vendor_control(dev, buffer, buflen) || |
1209 | buffer[1] != USB_DT_CS_INTERFACE) |
1210 | goto next_descriptor; |
1211 | |
1212 | ret = uvc_parse_standard_control(dev, buffer, buflen); |
1213 | if (ret < 0) |
1214 | return ret; |
1215 | |
1216 | next_descriptor: |
1217 | buflen -= buffer[0]; |
1218 | buffer += buffer[0]; |
1219 | } |
1220 | |
1221 | /* |
1222 | * Check if the optional status endpoint is present. Built-in iSight |
1223 | * webcams have an interrupt endpoint but spit proprietary data that |
1224 | * don't conform to the UVC status endpoint messages. Don't try to |
1225 | * handle the interrupt endpoint for those cameras. |
1226 | */ |
1227 | if (alts->desc.bNumEndpoints == 1 && |
1228 | !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) { |
1229 | struct usb_host_endpoint *ep = &alts->endpoint[0]; |
1230 | struct usb_endpoint_descriptor *desc = &ep->desc; |
1231 | |
1232 | if (usb_endpoint_is_int_in(epd: desc) && |
1233 | le16_to_cpu(desc->wMaxPacketSize) >= 8 && |
1234 | desc->bInterval != 0) { |
1235 | uvc_dbg(dev, DESCR, |
1236 | "Found a Status endpoint (addr %02x)\n", |
1237 | desc->bEndpointAddress); |
1238 | dev->int_ep = ep; |
1239 | } |
1240 | } |
1241 | |
1242 | return 0; |
1243 | } |
1244 | |
1245 | /* ----------------------------------------------------------------------------- |
1246 | * Privacy GPIO |
1247 | */ |
1248 | |
1249 | static void uvc_gpio_event(struct uvc_device *dev) |
1250 | { |
1251 | struct uvc_entity *unit = dev->gpio_unit; |
1252 | struct uvc_video_chain *chain; |
1253 | u8 new_val; |
1254 | |
1255 | if (!unit) |
1256 | return; |
1257 | |
1258 | new_val = gpiod_get_value_cansleep(desc: unit->gpio.gpio_privacy); |
1259 | |
1260 | /* GPIO entities are always on the first chain. */ |
1261 | chain = list_first_entry(&dev->chains, struct uvc_video_chain, list); |
1262 | uvc_ctrl_status_event(chain, ctrl: unit->controls, data: &new_val); |
1263 | } |
1264 | |
1265 | static int uvc_gpio_get_cur(struct uvc_device *dev, struct uvc_entity *entity, |
1266 | u8 cs, void *data, u16 size) |
1267 | { |
1268 | if (cs != UVC_CT_PRIVACY_CONTROL || size < 1) |
1269 | return -EINVAL; |
1270 | |
1271 | *(u8 *)data = gpiod_get_value_cansleep(desc: entity->gpio.gpio_privacy); |
1272 | |
1273 | return 0; |
1274 | } |
1275 | |
1276 | static int uvc_gpio_get_info(struct uvc_device *dev, struct uvc_entity *entity, |
1277 | u8 cs, u8 *caps) |
1278 | { |
1279 | if (cs != UVC_CT_PRIVACY_CONTROL) |
1280 | return -EINVAL; |
1281 | |
1282 | *caps = UVC_CONTROL_CAP_GET | UVC_CONTROL_CAP_AUTOUPDATE; |
1283 | return 0; |
1284 | } |
1285 | |
1286 | static irqreturn_t uvc_gpio_irq(int irq, void *data) |
1287 | { |
1288 | struct uvc_device *dev = data; |
1289 | |
1290 | uvc_gpio_event(dev); |
1291 | return IRQ_HANDLED; |
1292 | } |
1293 | |
1294 | static int uvc_gpio_parse(struct uvc_device *dev) |
1295 | { |
1296 | struct uvc_entity *unit; |
1297 | struct gpio_desc *gpio_privacy; |
1298 | int irq; |
1299 | |
1300 | gpio_privacy = devm_gpiod_get_optional(dev: &dev->intf->dev, con_id: "privacy", |
1301 | flags: GPIOD_IN); |
1302 | if (!gpio_privacy) |
1303 | return 0; |
1304 | |
1305 | if (IS_ERR(ptr: gpio_privacy)) |
1306 | return dev_err_probe(dev: &dev->intf->dev, |
1307 | err: PTR_ERR(ptr: gpio_privacy), |
1308 | fmt: "Can't get privacy GPIO\n"); |
1309 | |
1310 | irq = gpiod_to_irq(desc: gpio_privacy); |
1311 | if (irq < 0) |
1312 | return dev_err_probe(dev: &dev->intf->dev, err: irq, |
1313 | fmt: "No IRQ for privacy GPIO\n"); |
1314 | |
1315 | unit = uvc_alloc_entity(UVC_EXT_GPIO_UNIT, UVC_EXT_GPIO_UNIT_ID, num_pads: 0, extra_size: 1); |
1316 | if (!unit) |
1317 | return -ENOMEM; |
1318 | |
1319 | unit->gpio.gpio_privacy = gpio_privacy; |
1320 | unit->gpio.irq = irq; |
1321 | unit->gpio.bControlSize = 1; |
1322 | unit->gpio.bmControls = (u8 *)unit + sizeof(*unit); |
1323 | unit->gpio.bmControls[0] = 1; |
1324 | unit->get_cur = uvc_gpio_get_cur; |
1325 | unit->get_info = uvc_gpio_get_info; |
1326 | strscpy(unit->name, "GPIO", sizeof(unit->name)); |
1327 | |
1328 | list_add_tail(new: &unit->list, head: &dev->entities); |
1329 | |
1330 | dev->gpio_unit = unit; |
1331 | |
1332 | return 0; |
1333 | } |
1334 | |
1335 | static int uvc_gpio_init_irq(struct uvc_device *dev) |
1336 | { |
1337 | struct uvc_entity *unit = dev->gpio_unit; |
1338 | int ret; |
1339 | |
1340 | if (!unit || unit->gpio.irq < 0) |
1341 | return 0; |
1342 | |
1343 | ret = request_threaded_irq(irq: unit->gpio.irq, NULL, thread_fn: uvc_gpio_irq, |
1344 | IRQF_ONESHOT | IRQF_TRIGGER_FALLING | |
1345 | IRQF_TRIGGER_RISING, |
1346 | name: "uvc_privacy_gpio", dev); |
1347 | |
1348 | unit->gpio.initialized = !ret; |
1349 | |
1350 | return ret; |
1351 | } |
1352 | |
1353 | static void uvc_gpio_deinit(struct uvc_device *dev) |
1354 | { |
1355 | if (!dev->gpio_unit || !dev->gpio_unit->gpio.initialized) |
1356 | return; |
1357 | |
1358 | free_irq(dev->gpio_unit->gpio.irq, dev); |
1359 | } |
1360 | |
1361 | /* ------------------------------------------------------------------------ |
1362 | * UVC device scan |
1363 | */ |
1364 | |
1365 | /* |
1366 | * Scan the UVC descriptors to locate a chain starting at an Output Terminal |
1367 | * and containing the following units: |
1368 | * |
1369 | * - one or more Output Terminals (USB Streaming or Display) |
1370 | * - zero or one Processing Unit |
1371 | * - zero, one or more single-input Selector Units |
1372 | * - zero or one multiple-input Selector Units, provided all inputs are |
1373 | * connected to input terminals |
1374 | * - zero, one or mode single-input Extension Units |
1375 | * - one or more Input Terminals (Camera, External or USB Streaming) |
1376 | * |
1377 | * The terminal and units must match on of the following structures: |
1378 | * |
1379 | * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) |
1380 | * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... |
1381 | * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) |
1382 | * |
1383 | * +---------+ +---------+ -> OTT_*(0) |
1384 | * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... |
1385 | * +---------+ +---------+ -> OTT_*(n) |
1386 | * |
1387 | * The Processing Unit and Extension Units can be in any order. Additional |
1388 | * Extension Units connected to the main chain as single-unit branches are |
1389 | * also supported. Single-input Selector Units are ignored. |
1390 | */ |
1391 | static int uvc_scan_chain_entity(struct uvc_video_chain *chain, |
1392 | struct uvc_entity *entity) |
1393 | { |
1394 | switch (UVC_ENTITY_TYPE(entity)) { |
1395 | case UVC_VC_EXTENSION_UNIT: |
1396 | uvc_dbg_cont(PROBE, " <- XU %d", entity->id); |
1397 | |
1398 | if (entity->bNrInPins != 1) { |
1399 | uvc_dbg(chain->dev, DESCR, |
1400 | "Extension unit %d has more than 1 input pin\n", |
1401 | entity->id); |
1402 | return -1; |
1403 | } |
1404 | |
1405 | break; |
1406 | |
1407 | case UVC_VC_PROCESSING_UNIT: |
1408 | uvc_dbg_cont(PROBE, " <- PU %d", entity->id); |
1409 | |
1410 | if (chain->processing != NULL) { |
1411 | uvc_dbg(chain->dev, DESCR, |
1412 | "Found multiple Processing Units in chain\n"); |
1413 | return -1; |
1414 | } |
1415 | |
1416 | chain->processing = entity; |
1417 | break; |
1418 | |
1419 | case UVC_VC_SELECTOR_UNIT: |
1420 | uvc_dbg_cont(PROBE, " <- SU %d", entity->id); |
1421 | |
1422 | /* Single-input selector units are ignored. */ |
1423 | if (entity->bNrInPins == 1) |
1424 | break; |
1425 | |
1426 | if (chain->selector != NULL) { |
1427 | uvc_dbg(chain->dev, DESCR, |
1428 | "Found multiple Selector Units in chain\n"); |
1429 | return -1; |
1430 | } |
1431 | |
1432 | chain->selector = entity; |
1433 | break; |
1434 | |
1435 | case UVC_ITT_VENDOR_SPECIFIC: |
1436 | case UVC_ITT_CAMERA: |
1437 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
1438 | uvc_dbg_cont(PROBE, " <- IT %d\n", entity->id); |
1439 | |
1440 | break; |
1441 | |
1442 | case UVC_OTT_VENDOR_SPECIFIC: |
1443 | case UVC_OTT_DISPLAY: |
1444 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
1445 | uvc_dbg_cont(PROBE, " OT %d", entity->id); |
1446 | |
1447 | break; |
1448 | |
1449 | case UVC_TT_STREAMING: |
1450 | if (UVC_ENTITY_IS_ITERM(entity)) |
1451 | uvc_dbg_cont(PROBE, " <- IT %d\n", entity->id); |
1452 | else |
1453 | uvc_dbg_cont(PROBE, " OT %d", entity->id); |
1454 | |
1455 | break; |
1456 | |
1457 | default: |
1458 | uvc_dbg(chain->dev, DESCR, |
1459 | "Unsupported entity type 0x%04x found in chain\n", |
1460 | UVC_ENTITY_TYPE(entity)); |
1461 | return -1; |
1462 | } |
1463 | |
1464 | list_add_tail(new: &entity->chain, head: &chain->entities); |
1465 | return 0; |
1466 | } |
1467 | |
1468 | static int uvc_scan_chain_forward(struct uvc_video_chain *chain, |
1469 | struct uvc_entity *entity, struct uvc_entity *prev) |
1470 | { |
1471 | struct uvc_entity *forward; |
1472 | int found; |
1473 | |
1474 | /* Forward scan */ |
1475 | forward = NULL; |
1476 | found = 0; |
1477 | |
1478 | while (1) { |
1479 | forward = uvc_entity_by_reference(dev: chain->dev, id: entity->id, |
1480 | entity: forward); |
1481 | if (forward == NULL) |
1482 | break; |
1483 | if (forward == prev) |
1484 | continue; |
1485 | if (forward->chain.next || forward->chain.prev) { |
1486 | uvc_dbg(chain->dev, DESCR, |
1487 | "Found reference to entity %d already in chain\n", |
1488 | forward->id); |
1489 | return -EINVAL; |
1490 | } |
1491 | |
1492 | switch (UVC_ENTITY_TYPE(forward)) { |
1493 | case UVC_VC_EXTENSION_UNIT: |
1494 | if (forward->bNrInPins != 1) { |
1495 | uvc_dbg(chain->dev, DESCR, |
1496 | "Extension unit %d has more than 1 input pin\n", |
1497 | forward->id); |
1498 | return -EINVAL; |
1499 | } |
1500 | |
1501 | /* |
1502 | * Some devices reference an output terminal as the |
1503 | * source of extension units. This is incorrect, as |
1504 | * output terminals only have an input pin, and thus |
1505 | * can't be connected to any entity in the forward |
1506 | * direction. The resulting topology would cause issues |
1507 | * when registering the media controller graph. To |
1508 | * avoid this problem, connect the extension unit to |
1509 | * the source of the output terminal instead. |
1510 | */ |
1511 | if (UVC_ENTITY_IS_OTERM(entity)) { |
1512 | struct uvc_entity *source; |
1513 | |
1514 | source = uvc_entity_by_id(dev: chain->dev, |
1515 | id: entity->baSourceID[0]); |
1516 | if (!source) { |
1517 | uvc_dbg(chain->dev, DESCR, |
1518 | "Can't connect extension unit %u in chain\n", |
1519 | forward->id); |
1520 | break; |
1521 | } |
1522 | |
1523 | forward->baSourceID[0] = source->id; |
1524 | } |
1525 | |
1526 | list_add_tail(new: &forward->chain, head: &chain->entities); |
1527 | if (!found) |
1528 | uvc_dbg_cont(PROBE, " (->"); |
1529 | |
1530 | uvc_dbg_cont(PROBE, " XU %d", forward->id); |
1531 | found = 1; |
1532 | break; |
1533 | |
1534 | case UVC_OTT_VENDOR_SPECIFIC: |
1535 | case UVC_OTT_DISPLAY: |
1536 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
1537 | case UVC_TT_STREAMING: |
1538 | if (UVC_ENTITY_IS_ITERM(forward)) { |
1539 | uvc_dbg(chain->dev, DESCR, |
1540 | "Unsupported input terminal %u\n", |
1541 | forward->id); |
1542 | return -EINVAL; |
1543 | } |
1544 | |
1545 | if (UVC_ENTITY_IS_OTERM(entity)) { |
1546 | uvc_dbg(chain->dev, DESCR, |
1547 | "Unsupported connection between output terminals %u and %u\n", |
1548 | entity->id, forward->id); |
1549 | break; |
1550 | } |
1551 | |
1552 | list_add_tail(new: &forward->chain, head: &chain->entities); |
1553 | if (!found) |
1554 | uvc_dbg_cont(PROBE, " (->"); |
1555 | |
1556 | uvc_dbg_cont(PROBE, " OT %d", forward->id); |
1557 | found = 1; |
1558 | break; |
1559 | } |
1560 | } |
1561 | if (found) |
1562 | uvc_dbg_cont(PROBE, ")"); |
1563 | |
1564 | return 0; |
1565 | } |
1566 | |
1567 | static int uvc_scan_chain_backward(struct uvc_video_chain *chain, |
1568 | struct uvc_entity **_entity) |
1569 | { |
1570 | struct uvc_entity *entity = *_entity; |
1571 | struct uvc_entity *term; |
1572 | int id = -EINVAL, i; |
1573 | |
1574 | switch (UVC_ENTITY_TYPE(entity)) { |
1575 | case UVC_VC_EXTENSION_UNIT: |
1576 | case UVC_VC_PROCESSING_UNIT: |
1577 | id = entity->baSourceID[0]; |
1578 | break; |
1579 | |
1580 | case UVC_VC_SELECTOR_UNIT: |
1581 | /* Single-input selector units are ignored. */ |
1582 | if (entity->bNrInPins == 1) { |
1583 | id = entity->baSourceID[0]; |
1584 | break; |
1585 | } |
1586 | |
1587 | uvc_dbg_cont(PROBE, " <- IT"); |
1588 | |
1589 | chain->selector = entity; |
1590 | for (i = 0; i < entity->bNrInPins; ++i) { |
1591 | id = entity->baSourceID[i]; |
1592 | term = uvc_entity_by_id(dev: chain->dev, id); |
1593 | if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { |
1594 | uvc_dbg(chain->dev, DESCR, |
1595 | "Selector unit %d input %d isn't connected to an input terminal\n", |
1596 | entity->id, i); |
1597 | return -1; |
1598 | } |
1599 | |
1600 | if (term->chain.next || term->chain.prev) { |
1601 | uvc_dbg(chain->dev, DESCR, |
1602 | "Found reference to entity %d already in chain\n", |
1603 | term->id); |
1604 | return -EINVAL; |
1605 | } |
1606 | |
1607 | uvc_dbg_cont(PROBE, " %d", term->id); |
1608 | |
1609 | list_add_tail(new: &term->chain, head: &chain->entities); |
1610 | uvc_scan_chain_forward(chain, entity: term, prev: entity); |
1611 | } |
1612 | |
1613 | uvc_dbg_cont(PROBE, "\n"); |
1614 | |
1615 | id = 0; |
1616 | break; |
1617 | |
1618 | case UVC_ITT_VENDOR_SPECIFIC: |
1619 | case UVC_ITT_CAMERA: |
1620 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
1621 | case UVC_OTT_VENDOR_SPECIFIC: |
1622 | case UVC_OTT_DISPLAY: |
1623 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
1624 | case UVC_TT_STREAMING: |
1625 | id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; |
1626 | break; |
1627 | } |
1628 | |
1629 | if (id <= 0) { |
1630 | *_entity = NULL; |
1631 | return id; |
1632 | } |
1633 | |
1634 | entity = uvc_entity_by_id(dev: chain->dev, id); |
1635 | if (entity == NULL) { |
1636 | uvc_dbg(chain->dev, DESCR, |
1637 | "Found reference to unknown entity %d\n", id); |
1638 | return -EINVAL; |
1639 | } |
1640 | |
1641 | *_entity = entity; |
1642 | return 0; |
1643 | } |
1644 | |
1645 | static int uvc_scan_chain(struct uvc_video_chain *chain, |
1646 | struct uvc_entity *term) |
1647 | { |
1648 | struct uvc_entity *entity, *prev; |
1649 | |
1650 | uvc_dbg(chain->dev, PROBE, "Scanning UVC chain:"); |
1651 | |
1652 | entity = term; |
1653 | prev = NULL; |
1654 | |
1655 | while (entity != NULL) { |
1656 | /* Entity must not be part of an existing chain */ |
1657 | if (entity->chain.next || entity->chain.prev) { |
1658 | uvc_dbg(chain->dev, DESCR, |
1659 | "Found reference to entity %d already in chain\n", |
1660 | entity->id); |
1661 | return -EINVAL; |
1662 | } |
1663 | |
1664 | /* Process entity */ |
1665 | if (uvc_scan_chain_entity(chain, entity) < 0) |
1666 | return -EINVAL; |
1667 | |
1668 | /* Forward scan */ |
1669 | if (uvc_scan_chain_forward(chain, entity, prev) < 0) |
1670 | return -EINVAL; |
1671 | |
1672 | /* Backward scan */ |
1673 | prev = entity; |
1674 | if (uvc_scan_chain_backward(chain, entity: &entity) < 0) |
1675 | return -EINVAL; |
1676 | } |
1677 | |
1678 | return 0; |
1679 | } |
1680 | |
1681 | static unsigned int uvc_print_terms(struct list_head *terms, u16 dir, |
1682 | char *buffer) |
1683 | { |
1684 | struct uvc_entity *term; |
1685 | unsigned int nterms = 0; |
1686 | char *p = buffer; |
1687 | |
1688 | list_for_each_entry(term, terms, chain) { |
1689 | if (!UVC_ENTITY_IS_TERM(term) || |
1690 | UVC_TERM_DIRECTION(term) != dir) |
1691 | continue; |
1692 | |
1693 | if (nterms) |
1694 | p += sprintf(buf: p, fmt: ","); |
1695 | if (++nterms >= 4) { |
1696 | p += sprintf(buf: p, fmt: "..."); |
1697 | break; |
1698 | } |
1699 | p += sprintf(buf: p, fmt: "%u", term->id); |
1700 | } |
1701 | |
1702 | return p - buffer; |
1703 | } |
1704 | |
1705 | static const char *uvc_print_chain(struct uvc_video_chain *chain) |
1706 | { |
1707 | static char buffer[43]; |
1708 | char *p = buffer; |
1709 | |
1710 | p += uvc_print_terms(terms: &chain->entities, UVC_TERM_INPUT, buffer: p); |
1711 | p += sprintf(buf: p, fmt: " -> "); |
1712 | uvc_print_terms(terms: &chain->entities, UVC_TERM_OUTPUT, buffer: p); |
1713 | |
1714 | return buffer; |
1715 | } |
1716 | |
1717 | static struct uvc_video_chain *uvc_alloc_chain(struct uvc_device *dev) |
1718 | { |
1719 | struct uvc_video_chain *chain; |
1720 | |
1721 | chain = kzalloc(sizeof(*chain), GFP_KERNEL); |
1722 | if (chain == NULL) |
1723 | return NULL; |
1724 | |
1725 | INIT_LIST_HEAD(list: &chain->entities); |
1726 | mutex_init(&chain->ctrl_mutex); |
1727 | chain->dev = dev; |
1728 | v4l2_prio_init(global: &chain->prio); |
1729 | |
1730 | return chain; |
1731 | } |
1732 | |
1733 | /* |
1734 | * Fallback heuristic for devices that don't connect units and terminals in a |
1735 | * valid chain. |
1736 | * |
1737 | * Some devices have invalid baSourceID references, causing uvc_scan_chain() |
1738 | * to fail, but if we just take the entities we can find and put them together |
1739 | * in the most sensible chain we can think of, turns out they do work anyway. |
1740 | * Note: This heuristic assumes there is a single chain. |
1741 | * |
1742 | * At the time of writing, devices known to have such a broken chain are |
1743 | * - Acer Integrated Camera (5986:055a) |
1744 | * - Realtek rtl157a7 (0bda:57a7) |
1745 | */ |
1746 | static int uvc_scan_fallback(struct uvc_device *dev) |
1747 | { |
1748 | struct uvc_video_chain *chain; |
1749 | struct uvc_entity *iterm = NULL; |
1750 | struct uvc_entity *oterm = NULL; |
1751 | struct uvc_entity *entity; |
1752 | struct uvc_entity *prev; |
1753 | |
1754 | /* |
1755 | * Start by locating the input and output terminals. We only support |
1756 | * devices with exactly one of each for now. |
1757 | */ |
1758 | list_for_each_entry(entity, &dev->entities, list) { |
1759 | if (UVC_ENTITY_IS_ITERM(entity)) { |
1760 | if (iterm) |
1761 | return -EINVAL; |
1762 | iterm = entity; |
1763 | } |
1764 | |
1765 | if (UVC_ENTITY_IS_OTERM(entity)) { |
1766 | if (oterm) |
1767 | return -EINVAL; |
1768 | oterm = entity; |
1769 | } |
1770 | } |
1771 | |
1772 | if (iterm == NULL || oterm == NULL) |
1773 | return -EINVAL; |
1774 | |
1775 | /* Allocate the chain and fill it. */ |
1776 | chain = uvc_alloc_chain(dev); |
1777 | if (chain == NULL) |
1778 | return -ENOMEM; |
1779 | |
1780 | if (uvc_scan_chain_entity(chain, entity: oterm) < 0) |
1781 | goto error; |
1782 | |
1783 | prev = oterm; |
1784 | |
1785 | /* |
1786 | * Add all Processing and Extension Units with two pads. The order |
1787 | * doesn't matter much, use reverse list traversal to connect units in |
1788 | * UVC descriptor order as we build the chain from output to input. This |
1789 | * leads to units appearing in the order meant by the manufacturer for |
1790 | * the cameras known to require this heuristic. |
1791 | */ |
1792 | list_for_each_entry_reverse(entity, &dev->entities, list) { |
1793 | if (entity->type != UVC_VC_PROCESSING_UNIT && |
1794 | entity->type != UVC_VC_EXTENSION_UNIT) |
1795 | continue; |
1796 | |
1797 | if (entity->num_pads != 2) |
1798 | continue; |
1799 | |
1800 | if (uvc_scan_chain_entity(chain, entity) < 0) |
1801 | goto error; |
1802 | |
1803 | prev->baSourceID[0] = entity->id; |
1804 | prev = entity; |
1805 | } |
1806 | |
1807 | if (uvc_scan_chain_entity(chain, entity: iterm) < 0) |
1808 | goto error; |
1809 | |
1810 | prev->baSourceID[0] = iterm->id; |
1811 | |
1812 | list_add_tail(new: &chain->list, head: &dev->chains); |
1813 | |
1814 | uvc_dbg(dev, PROBE, "Found a video chain by fallback heuristic (%s)\n", |
1815 | uvc_print_chain(chain)); |
1816 | |
1817 | return 0; |
1818 | |
1819 | error: |
1820 | kfree(objp: chain); |
1821 | return -EINVAL; |
1822 | } |
1823 | |
1824 | /* |
1825 | * Scan the device for video chains and register video devices. |
1826 | * |
1827 | * Chains are scanned starting at their output terminals and walked backwards. |
1828 | */ |
1829 | static int uvc_scan_device(struct uvc_device *dev) |
1830 | { |
1831 | struct uvc_video_chain *chain; |
1832 | struct uvc_entity *term; |
1833 | |
1834 | list_for_each_entry(term, &dev->entities, list) { |
1835 | if (!UVC_ENTITY_IS_OTERM(term)) |
1836 | continue; |
1837 | |
1838 | /* |
1839 | * If the terminal is already included in a chain, skip it. |
1840 | * This can happen for chains that have multiple output |
1841 | * terminals, where all output terminals beside the first one |
1842 | * will be inserted in the chain in forward scans. |
1843 | */ |
1844 | if (term->chain.next || term->chain.prev) |
1845 | continue; |
1846 | |
1847 | chain = uvc_alloc_chain(dev); |
1848 | if (chain == NULL) |
1849 | return -ENOMEM; |
1850 | |
1851 | term->flags |= UVC_ENTITY_FLAG_DEFAULT; |
1852 | |
1853 | if (uvc_scan_chain(chain, term) < 0) { |
1854 | kfree(objp: chain); |
1855 | continue; |
1856 | } |
1857 | |
1858 | uvc_dbg(dev, PROBE, "Found a valid video chain (%s)\n", |
1859 | uvc_print_chain(chain)); |
1860 | |
1861 | list_add_tail(new: &chain->list, head: &dev->chains); |
1862 | } |
1863 | |
1864 | if (list_empty(head: &dev->chains)) |
1865 | uvc_scan_fallback(dev); |
1866 | |
1867 | if (list_empty(head: &dev->chains)) { |
1868 | dev_info(&dev->udev->dev, "No valid video chain found.\n"); |
1869 | return -1; |
1870 | } |
1871 | |
1872 | /* Add GPIO entity to the first chain. */ |
1873 | if (dev->gpio_unit) { |
1874 | chain = list_first_entry(&dev->chains, |
1875 | struct uvc_video_chain, list); |
1876 | list_add_tail(new: &dev->gpio_unit->chain, head: &chain->entities); |
1877 | } |
1878 | |
1879 | return 0; |
1880 | } |
1881 | |
1882 | /* ------------------------------------------------------------------------ |
1883 | * Video device registration and unregistration |
1884 | */ |
1885 | |
1886 | /* |
1887 | * Delete the UVC device. |
1888 | * |
1889 | * Called by the kernel when the last reference to the uvc_device structure |
1890 | * is released. |
1891 | * |
1892 | * As this function is called after or during disconnect(), all URBs have |
1893 | * already been cancelled by the USB core. There is no need to kill the |
1894 | * interrupt URB manually. |
1895 | */ |
1896 | static void uvc_delete(struct kref *kref) |
1897 | { |
1898 | struct uvc_device *dev = container_of(kref, struct uvc_device, ref); |
1899 | struct list_head *p, *n; |
1900 | |
1901 | uvc_status_cleanup(dev); |
1902 | uvc_ctrl_cleanup_device(dev); |
1903 | |
1904 | usb_put_intf(intf: dev->intf); |
1905 | usb_put_dev(dev: dev->udev); |
1906 | |
1907 | #ifdef CONFIG_MEDIA_CONTROLLER |
1908 | media_device_cleanup(mdev: &dev->mdev); |
1909 | #endif |
1910 | |
1911 | list_for_each_safe(p, n, &dev->chains) { |
1912 | struct uvc_video_chain *chain; |
1913 | |
1914 | chain = list_entry(p, struct uvc_video_chain, list); |
1915 | kfree(objp: chain); |
1916 | } |
1917 | |
1918 | list_for_each_safe(p, n, &dev->entities) { |
1919 | struct uvc_entity *entity; |
1920 | |
1921 | entity = list_entry(p, struct uvc_entity, list); |
1922 | #ifdef CONFIG_MEDIA_CONTROLLER |
1923 | uvc_mc_cleanup_entity(entity); |
1924 | #endif |
1925 | kfree(objp: entity); |
1926 | } |
1927 | |
1928 | list_for_each_safe(p, n, &dev->streams) { |
1929 | struct uvc_streaming *streaming; |
1930 | |
1931 | streaming = list_entry(p, struct uvc_streaming, list); |
1932 | usb_driver_release_interface(driver: &uvc_driver, iface: streaming->intf); |
1933 | uvc_stream_delete(stream: streaming); |
1934 | } |
1935 | |
1936 | kfree(objp: dev); |
1937 | } |
1938 | |
1939 | static void uvc_release(struct video_device *vdev) |
1940 | { |
1941 | struct uvc_streaming *stream = video_get_drvdata(vdev); |
1942 | struct uvc_device *dev = stream->dev; |
1943 | |
1944 | kref_put(kref: &dev->ref, release: uvc_delete); |
1945 | } |
1946 | |
1947 | /* |
1948 | * Unregister the video devices. |
1949 | */ |
1950 | static void uvc_unregister_video(struct uvc_device *dev) |
1951 | { |
1952 | struct uvc_streaming *stream; |
1953 | |
1954 | uvc_gpio_deinit(dev); |
1955 | |
1956 | list_for_each_entry(stream, &dev->streams, list) { |
1957 | /* Nothing to do here, continue. */ |
1958 | if (!video_is_registered(vdev: &stream->vdev)) |
1959 | continue; |
1960 | |
1961 | /* |
1962 | * For stream->vdev we follow the same logic as: |
1963 | * vb2_video_unregister_device(). |
1964 | */ |
1965 | |
1966 | /* 1. Take a reference to vdev */ |
1967 | get_device(dev: &stream->vdev.dev); |
1968 | |
1969 | /* 2. Ensure that no new ioctls can be called. */ |
1970 | video_unregister_device(vdev: &stream->vdev); |
1971 | |
1972 | /* 3. Wait for old ioctls to finish. */ |
1973 | mutex_lock(&stream->mutex); |
1974 | |
1975 | /* 4. Stop streaming. */ |
1976 | uvc_queue_release(queue: &stream->queue); |
1977 | |
1978 | mutex_unlock(lock: &stream->mutex); |
1979 | |
1980 | put_device(dev: &stream->vdev.dev); |
1981 | |
1982 | /* |
1983 | * For stream->meta.vdev we can directly call: |
1984 | * vb2_video_unregister_device(). |
1985 | */ |
1986 | vb2_video_unregister_device(vdev: &stream->meta.vdev); |
1987 | |
1988 | /* |
1989 | * Now both vdevs are not streaming and all the ioctls will |
1990 | * return -ENODEV. |
1991 | */ |
1992 | |
1993 | uvc_debugfs_cleanup_stream(stream); |
1994 | } |
1995 | |
1996 | uvc_status_unregister(dev); |
1997 | |
1998 | if (dev->vdev.dev) |
1999 | v4l2_device_unregister(v4l2_dev: &dev->vdev); |
2000 | #ifdef CONFIG_MEDIA_CONTROLLER |
2001 | if (media_devnode_is_registered(devnode: dev->mdev.devnode)) |
2002 | media_device_unregister(mdev: &dev->mdev); |
2003 | #endif |
2004 | } |
2005 | |
2006 | int uvc_register_video_device(struct uvc_device *dev, |
2007 | struct uvc_streaming *stream, |
2008 | struct video_device *vdev, |
2009 | struct uvc_video_queue *queue, |
2010 | enum v4l2_buf_type type, |
2011 | const struct v4l2_file_operations *fops, |
2012 | const struct v4l2_ioctl_ops *ioctl_ops) |
2013 | { |
2014 | int ret; |
2015 | |
2016 | /* Initialize the video buffers queue. */ |
2017 | ret = uvc_queue_init(queue, type); |
2018 | if (ret) |
2019 | return ret; |
2020 | |
2021 | /* Register the device with V4L. */ |
2022 | |
2023 | /* |
2024 | * We already hold a reference to dev->udev. The video device will be |
2025 | * unregistered before the reference is released, so we don't need to |
2026 | * get another one. |
2027 | */ |
2028 | vdev->v4l2_dev = &dev->vdev; |
2029 | vdev->fops = fops; |
2030 | vdev->ioctl_ops = ioctl_ops; |
2031 | vdev->release = uvc_release; |
2032 | vdev->prio = &stream->chain->prio; |
2033 | if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
2034 | vdev->vfl_dir = VFL_DIR_TX; |
2035 | else |
2036 | vdev->vfl_dir = VFL_DIR_RX; |
2037 | |
2038 | switch (type) { |
2039 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
2040 | default: |
2041 | vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
2042 | break; |
2043 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
2044 | vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; |
2045 | break; |
2046 | case V4L2_BUF_TYPE_META_CAPTURE: |
2047 | vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING; |
2048 | break; |
2049 | } |
2050 | |
2051 | strscpy(vdev->name, dev->name, sizeof(vdev->name)); |
2052 | |
2053 | /* |
2054 | * Set the driver data before calling video_register_device, otherwise |
2055 | * the file open() handler might race us. |
2056 | */ |
2057 | video_set_drvdata(vdev, data: stream); |
2058 | |
2059 | ret = video_register_device(vdev, type: VFL_TYPE_VIDEO, nr: -1); |
2060 | if (ret < 0) { |
2061 | dev_err(&stream->intf->dev, |
2062 | "Failed to register %s device (%d).\n", |
2063 | v4l2_type_names[type], ret); |
2064 | return ret; |
2065 | } |
2066 | |
2067 | kref_get(kref: &dev->ref); |
2068 | return 0; |
2069 | } |
2070 | |
2071 | static int uvc_register_video(struct uvc_device *dev, |
2072 | struct uvc_streaming *stream) |
2073 | { |
2074 | int ret; |
2075 | |
2076 | /* Initialize the streaming interface with default parameters. */ |
2077 | ret = uvc_video_init(stream); |
2078 | if (ret < 0) { |
2079 | dev_err(&stream->intf->dev, |
2080 | "Failed to initialize the device (%d).\n", ret); |
2081 | return ret; |
2082 | } |
2083 | |
2084 | if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
2085 | stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE |
2086 | | V4L2_CAP_META_CAPTURE; |
2087 | else |
2088 | stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; |
2089 | |
2090 | uvc_debugfs_init_stream(stream); |
2091 | |
2092 | /* Register the device with V4L. */ |
2093 | return uvc_register_video_device(dev, stream, vdev: &stream->vdev, |
2094 | queue: &stream->queue, type: stream->type, |
2095 | fops: &uvc_fops, ioctl_ops: &uvc_ioctl_ops); |
2096 | } |
2097 | |
2098 | /* |
2099 | * Register all video devices in all chains. |
2100 | */ |
2101 | static int uvc_register_terms(struct uvc_device *dev, |
2102 | struct uvc_video_chain *chain) |
2103 | { |
2104 | struct uvc_streaming *stream; |
2105 | struct uvc_entity *term; |
2106 | int ret; |
2107 | |
2108 | list_for_each_entry(term, &chain->entities, chain) { |
2109 | if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) |
2110 | continue; |
2111 | |
2112 | stream = uvc_stream_by_id(dev, id: term->id); |
2113 | if (stream == NULL) { |
2114 | dev_info(&dev->udev->dev, |
2115 | "No streaming interface found for terminal %u.", |
2116 | term->id); |
2117 | continue; |
2118 | } |
2119 | |
2120 | stream->chain = chain; |
2121 | ret = uvc_register_video(dev, stream); |
2122 | if (ret < 0) |
2123 | return ret; |
2124 | |
2125 | /* |
2126 | * Register a metadata node, but ignore a possible failure, |
2127 | * complete registration of video nodes anyway. |
2128 | */ |
2129 | uvc_meta_register(stream); |
2130 | |
2131 | term->vdev = &stream->vdev; |
2132 | } |
2133 | |
2134 | return 0; |
2135 | } |
2136 | |
2137 | static int uvc_register_chains(struct uvc_device *dev) |
2138 | { |
2139 | struct uvc_video_chain *chain; |
2140 | int ret; |
2141 | |
2142 | list_for_each_entry(chain, &dev->chains, list) { |
2143 | ret = uvc_register_terms(dev, chain); |
2144 | if (ret < 0) |
2145 | return ret; |
2146 | |
2147 | #ifdef CONFIG_MEDIA_CONTROLLER |
2148 | ret = uvc_mc_register_entities(chain); |
2149 | if (ret < 0) |
2150 | dev_info(&dev->udev->dev, |
2151 | "Failed to register entities (%d).\n", ret); |
2152 | #endif |
2153 | } |
2154 | |
2155 | return 0; |
2156 | } |
2157 | |
2158 | /* ------------------------------------------------------------------------ |
2159 | * USB probe, disconnect, suspend and resume |
2160 | */ |
2161 | |
2162 | static const struct uvc_device_info uvc_quirk_none = { 0 }; |
2163 | |
2164 | static int uvc_probe(struct usb_interface *intf, |
2165 | const struct usb_device_id *id) |
2166 | { |
2167 | struct usb_device *udev = interface_to_usbdev(intf); |
2168 | struct uvc_device *dev; |
2169 | const struct uvc_device_info *info = |
2170 | (const struct uvc_device_info *)id->driver_info; |
2171 | int function; |
2172 | int ret; |
2173 | |
2174 | /* Allocate memory for the device and initialize it. */ |
2175 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
2176 | if (dev == NULL) |
2177 | return -ENOMEM; |
2178 | |
2179 | INIT_LIST_HEAD(list: &dev->entities); |
2180 | INIT_LIST_HEAD(list: &dev->chains); |
2181 | INIT_LIST_HEAD(list: &dev->streams); |
2182 | kref_init(kref: &dev->ref); |
2183 | atomic_set(v: &dev->nmappings, i: 0); |
2184 | |
2185 | dev->udev = usb_get_dev(dev: udev); |
2186 | dev->intf = usb_get_intf(intf); |
2187 | dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; |
2188 | dev->info = info ? info : &uvc_quirk_none; |
2189 | dev->quirks = uvc_quirks_param == -1 |
2190 | ? dev->info->quirks : uvc_quirks_param; |
2191 | |
2192 | if (id->idVendor && id->idProduct) |
2193 | uvc_dbg(dev, PROBE, "Probing known UVC device %s (%04x:%04x)\n", |
2194 | udev->devpath, id->idVendor, id->idProduct); |
2195 | else |
2196 | uvc_dbg(dev, PROBE, "Probing generic UVC device %s\n", |
2197 | udev->devpath); |
2198 | |
2199 | if (udev->product != NULL) |
2200 | strscpy(dev->name, udev->product, sizeof(dev->name)); |
2201 | else |
2202 | snprintf(buf: dev->name, size: sizeof(dev->name), |
2203 | fmt: "UVC Camera (%04x:%04x)", |
2204 | le16_to_cpu(udev->descriptor.idVendor), |
2205 | le16_to_cpu(udev->descriptor.idProduct)); |
2206 | |
2207 | /* |
2208 | * Add iFunction or iInterface to names when available as additional |
2209 | * distinguishers between interfaces. iFunction is prioritized over |
2210 | * iInterface which matches Windows behavior at the point of writing. |
2211 | */ |
2212 | if (intf->intf_assoc && intf->intf_assoc->iFunction != 0) |
2213 | function = intf->intf_assoc->iFunction; |
2214 | else |
2215 | function = intf->cur_altsetting->desc.iInterface; |
2216 | if (function != 0) { |
2217 | size_t len; |
2218 | |
2219 | strlcat(p: dev->name, q: ": ", avail: sizeof(dev->name)); |
2220 | len = strlen(dev->name); |
2221 | usb_string(dev: udev, index: function, buf: dev->name + len, |
2222 | size: sizeof(dev->name) - len); |
2223 | } |
2224 | |
2225 | /* Initialize the media device. */ |
2226 | #ifdef CONFIG_MEDIA_CONTROLLER |
2227 | dev->mdev.dev = &intf->dev; |
2228 | strscpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); |
2229 | if (udev->serial) |
2230 | strscpy(dev->mdev.serial, udev->serial, |
2231 | sizeof(dev->mdev.serial)); |
2232 | usb_make_path(dev: udev, buf: dev->mdev.bus_info, size: sizeof(dev->mdev.bus_info)); |
2233 | dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); |
2234 | media_device_init(mdev: &dev->mdev); |
2235 | |
2236 | dev->vdev.mdev = &dev->mdev; |
2237 | #endif |
2238 | |
2239 | /* Parse the Video Class control descriptor. */ |
2240 | ret = uvc_parse_control(dev); |
2241 | if (ret < 0) { |
2242 | ret = -ENODEV; |
2243 | uvc_dbg(dev, PROBE, "Unable to parse UVC descriptors\n"); |
2244 | goto error; |
2245 | } |
2246 | |
2247 | /* Parse the associated GPIOs. */ |
2248 | ret = uvc_gpio_parse(dev); |
2249 | if (ret < 0) |
2250 | goto error; |
2251 | |
2252 | dev_info(&dev->udev->dev, "Found UVC %u.%02x device %s (%04x:%04x)\n", |
2253 | dev->uvc_version >> 8, dev->uvc_version & 0xff, |
2254 | udev->product ? udev->product : "<unnamed>", |
2255 | le16_to_cpu(udev->descriptor.idVendor), |
2256 | le16_to_cpu(udev->descriptor.idProduct)); |
2257 | |
2258 | if (dev->quirks != dev->info->quirks) { |
2259 | dev_info(&dev->udev->dev, |
2260 | "Forcing device quirks to 0x%x by module parameter for testing purpose.\n", |
2261 | dev->quirks); |
2262 | dev_info(&dev->udev->dev, |
2263 | "Please report required quirks to the linux-media mailing list.\n"); |
2264 | } |
2265 | |
2266 | if (dev->info->uvc_version) { |
2267 | dev->uvc_version = dev->info->uvc_version; |
2268 | dev_info(&dev->udev->dev, "Forcing UVC version to %u.%02x\n", |
2269 | dev->uvc_version >> 8, dev->uvc_version & 0xff); |
2270 | } |
2271 | |
2272 | /* Register the V4L2 device. */ |
2273 | ret = v4l2_device_register(dev: &intf->dev, v4l2_dev: &dev->vdev); |
2274 | if (ret < 0) |
2275 | goto error; |
2276 | |
2277 | /* Scan the device for video chains. */ |
2278 | if (uvc_scan_device(dev) < 0) { |
2279 | ret = -ENODEV; |
2280 | goto error; |
2281 | } |
2282 | |
2283 | /* Initialize controls. */ |
2284 | if (uvc_ctrl_init_device(dev) < 0) { |
2285 | ret = -ENODEV; |
2286 | goto error; |
2287 | } |
2288 | |
2289 | /* Register video device nodes. */ |
2290 | if (uvc_register_chains(dev) < 0) { |
2291 | ret = -ENODEV; |
2292 | goto error; |
2293 | } |
2294 | |
2295 | #ifdef CONFIG_MEDIA_CONTROLLER |
2296 | /* Register the media device node */ |
2297 | ret = media_device_register(&dev->mdev); |
2298 | if (ret < 0) |
2299 | goto error; |
2300 | #endif |
2301 | /* Save our data pointer in the interface data. */ |
2302 | usb_set_intfdata(intf, data: dev); |
2303 | |
2304 | /* Initialize the interrupt URB. */ |
2305 | ret = uvc_status_init(dev); |
2306 | if (ret < 0) { |
2307 | dev_info(&dev->udev->dev, |
2308 | "Unable to initialize the status endpoint (%d), status interrupt will not be supported.\n", |
2309 | ret); |
2310 | } |
2311 | |
2312 | ret = uvc_gpio_init_irq(dev); |
2313 | if (ret < 0) { |
2314 | dev_err(&dev->udev->dev, |
2315 | "Unable to request privacy GPIO IRQ (%d)\n", ret); |
2316 | goto error; |
2317 | } |
2318 | |
2319 | if (dev->quirks & UVC_QUIRK_NO_RESET_RESUME) |
2320 | udev->quirks &= ~USB_QUIRK_RESET_RESUME; |
2321 | |
2322 | if (!(dev->quirks & UVC_QUIRK_DISABLE_AUTOSUSPEND)) |
2323 | usb_enable_autosuspend(udev); |
2324 | |
2325 | uvc_dbg(dev, PROBE, "UVC device initialized\n"); |
2326 | |
2327 | return 0; |
2328 | |
2329 | error: |
2330 | uvc_unregister_video(dev); |
2331 | kref_put(kref: &dev->ref, release: uvc_delete); |
2332 | return ret; |
2333 | } |
2334 | |
2335 | static void uvc_disconnect(struct usb_interface *intf) |
2336 | { |
2337 | struct uvc_device *dev = usb_get_intfdata(intf); |
2338 | |
2339 | /* |
2340 | * Set the USB interface data to NULL. This can be done outside the |
2341 | * lock, as there's no other reader. |
2342 | */ |
2343 | usb_set_intfdata(intf, NULL); |
2344 | |
2345 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
2346 | UVC_SC_VIDEOSTREAMING) |
2347 | return; |
2348 | |
2349 | uvc_unregister_video(dev); |
2350 | kref_put(kref: &dev->ref, release: uvc_delete); |
2351 | } |
2352 | |
2353 | static int uvc_suspend(struct usb_interface *intf, pm_message_t message) |
2354 | { |
2355 | struct uvc_device *dev = usb_get_intfdata(intf); |
2356 | struct uvc_streaming *stream; |
2357 | |
2358 | uvc_dbg(dev, SUSPEND, "Suspending interface %u\n", |
2359 | intf->cur_altsetting->desc.bInterfaceNumber); |
2360 | |
2361 | /* Controls are cached on the fly so they don't need to be saved. */ |
2362 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
2363 | UVC_SC_VIDEOCONTROL) { |
2364 | uvc_status_suspend(dev); |
2365 | return 0; |
2366 | } |
2367 | |
2368 | list_for_each_entry(stream, &dev->streams, list) { |
2369 | if (stream->intf == intf) |
2370 | return uvc_video_suspend(stream); |
2371 | } |
2372 | |
2373 | uvc_dbg(dev, SUSPEND, |
2374 | "Suspend: video streaming USB interface mismatch\n"); |
2375 | return -EINVAL; |
2376 | } |
2377 | |
2378 | static int __uvc_resume(struct usb_interface *intf, int reset) |
2379 | { |
2380 | struct uvc_device *dev = usb_get_intfdata(intf); |
2381 | struct uvc_streaming *stream; |
2382 | int ret = 0; |
2383 | |
2384 | uvc_dbg(dev, SUSPEND, "Resuming interface %u\n", |
2385 | intf->cur_altsetting->desc.bInterfaceNumber); |
2386 | |
2387 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
2388 | UVC_SC_VIDEOCONTROL) { |
2389 | if (reset) { |
2390 | ret = uvc_ctrl_restore_values(dev); |
2391 | if (ret < 0) |
2392 | return ret; |
2393 | } |
2394 | |
2395 | return uvc_status_resume(dev); |
2396 | } |
2397 | |
2398 | list_for_each_entry(stream, &dev->streams, list) { |
2399 | if (stream->intf == intf) { |
2400 | ret = uvc_video_resume(stream, reset); |
2401 | if (ret < 0) |
2402 | uvc_queue_streamoff(queue: &stream->queue, |
2403 | type: stream->queue.queue.type); |
2404 | return ret; |
2405 | } |
2406 | } |
2407 | |
2408 | uvc_dbg(dev, SUSPEND, |
2409 | "Resume: video streaming USB interface mismatch\n"); |
2410 | return -EINVAL; |
2411 | } |
2412 | |
2413 | static int uvc_resume(struct usb_interface *intf) |
2414 | { |
2415 | return __uvc_resume(intf, reset: 0); |
2416 | } |
2417 | |
2418 | static int uvc_reset_resume(struct usb_interface *intf) |
2419 | { |
2420 | return __uvc_resume(intf, reset: 1); |
2421 | } |
2422 | |
2423 | /* ------------------------------------------------------------------------ |
2424 | * Module parameters |
2425 | */ |
2426 | |
2427 | static int uvc_clock_param_get(char *buffer, const struct kernel_param *kp) |
2428 | { |
2429 | if (uvc_clock_param == CLOCK_MONOTONIC) |
2430 | return sprintf(buf: buffer, fmt: "CLOCK_MONOTONIC"); |
2431 | else |
2432 | return sprintf(buf: buffer, fmt: "CLOCK_REALTIME"); |
2433 | } |
2434 | |
2435 | static int uvc_clock_param_set(const char *val, const struct kernel_param *kp) |
2436 | { |
2437 | if (strncasecmp(s1: val, s2: "clock_", strlen( "clock_")) == 0) |
2438 | val += strlen("clock_"); |
2439 | |
2440 | if (strcasecmp(s1: val, s2: "monotonic") == 0) |
2441 | uvc_clock_param = CLOCK_MONOTONIC; |
2442 | else if (strcasecmp(s1: val, s2: "realtime") == 0) |
2443 | uvc_clock_param = CLOCK_REALTIME; |
2444 | else |
2445 | return -EINVAL; |
2446 | |
2447 | return 0; |
2448 | } |
2449 | |
2450 | module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, |
2451 | &uvc_clock_param, 0644); |
2452 | MODULE_PARM_DESC(clock, "Video buffers timestamp clock"); |
2453 | module_param_named(hwtimestamps, uvc_hw_timestamps_param, uint, 0644); |
2454 | MODULE_PARM_DESC(hwtimestamps, "Use hardware timestamps"); |
2455 | |
2456 | static int param_set_nodrop(const char *val, const struct kernel_param *kp) |
2457 | { |
2458 | pr_warn_once("uvcvideo: " |
2459 | DEPRECATED |
2460 | "nodrop parameter will be eventually removed.\n"); |
2461 | return param_set_bool(val, kp); |
2462 | } |
2463 | |
2464 | static const struct kernel_param_ops param_ops_nodrop = { |
2465 | .set = param_set_nodrop, |
2466 | .get = param_get_uint, |
2467 | }; |
2468 | |
2469 | param_check_uint(nodrop, &uvc_no_drop_param); |
2470 | module_param_cb(nodrop, ¶m_ops_nodrop, &uvc_no_drop_param, 0644); |
2471 | __MODULE_PARM_TYPE(nodrop, "uint"); |
2472 | MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); |
2473 | |
2474 | module_param_named(quirks, uvc_quirks_param, uint, 0644); |
2475 | MODULE_PARM_DESC(quirks, "Forced device quirks"); |
2476 | module_param_named(trace, uvc_dbg_param, uint, 0644); |
2477 | MODULE_PARM_DESC(trace, "Trace level bitmask"); |
2478 | module_param_named(timeout, uvc_timeout_param, uint, 0644); |
2479 | MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); |
2480 | |
2481 | /* ------------------------------------------------------------------------ |
2482 | * Driver initialization and cleanup |
2483 | */ |
2484 | |
2485 | static const struct uvc_device_info uvc_quirk_probe_minmax = { |
2486 | .quirks = UVC_QUIRK_PROBE_MINMAX, |
2487 | }; |
2488 | |
2489 | static const struct uvc_device_info uvc_quirk_fix_bandwidth = { |
2490 | .quirks = UVC_QUIRK_FIX_BANDWIDTH, |
2491 | }; |
2492 | |
2493 | static const struct uvc_device_info uvc_quirk_probe_def = { |
2494 | .quirks = UVC_QUIRK_PROBE_DEF, |
2495 | }; |
2496 | |
2497 | static const struct uvc_device_info uvc_quirk_stream_no_fid = { |
2498 | .quirks = UVC_QUIRK_STREAM_NO_FID, |
2499 | }; |
2500 | |
2501 | static const struct uvc_device_info uvc_quirk_force_y8 = { |
2502 | .quirks = UVC_QUIRK_FORCE_Y8, |
2503 | }; |
2504 | |
2505 | #define UVC_INFO_QUIRK(q) (kernel_ulong_t)&(struct uvc_device_info){.quirks = q} |
2506 | #define UVC_INFO_META(m) (kernel_ulong_t)&(struct uvc_device_info) \ |
2507 | {.meta_format = m} |
2508 | |
2509 | /* |
2510 | * The Logitech cameras listed below have their interface class set to |
2511 | * VENDOR_SPEC because they don't announce themselves as UVC devices, even |
2512 | * though they are compliant. |
2513 | * |
2514 | * Sort these by vendor/product ID. |
2515 | */ |
2516 | static const struct usb_device_id uvc_ids[] = { |
2517 | /* Quanta ACER HD User Facing */ |
2518 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2519 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2520 | .idVendor = 0x0408, |
2521 | .idProduct = 0x4033, |
2522 | .bInterfaceClass = USB_CLASS_VIDEO, |
2523 | .bInterfaceSubClass = 1, |
2524 | .bInterfaceProtocol = UVC_PC_PROTOCOL_15, |
2525 | .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){ |
2526 | .uvc_version = 0x010a, |
2527 | } }, |
2528 | /* Quanta ACER HD User Facing */ |
2529 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2530 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2531 | .idVendor = 0x0408, |
2532 | .idProduct = 0x4035, |
2533 | .bInterfaceClass = USB_CLASS_VIDEO, |
2534 | .bInterfaceSubClass = 1, |
2535 | .bInterfaceProtocol = UVC_PC_PROTOCOL_15, |
2536 | .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){ |
2537 | .uvc_version = 0x010a, |
2538 | } }, |
2539 | /* LogiLink Wireless Webcam */ |
2540 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2541 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2542 | .idVendor = 0x0416, |
2543 | .idProduct = 0xa91a, |
2544 | .bInterfaceClass = USB_CLASS_VIDEO, |
2545 | .bInterfaceSubClass = 1, |
2546 | .bInterfaceProtocol = 0, |
2547 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2548 | /* Genius eFace 2025 */ |
2549 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2550 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2551 | .idVendor = 0x0458, |
2552 | .idProduct = 0x706e, |
2553 | .bInterfaceClass = USB_CLASS_VIDEO, |
2554 | .bInterfaceSubClass = 1, |
2555 | .bInterfaceProtocol = 0, |
2556 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2557 | /* Microsoft Lifecam NX-6000 */ |
2558 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2559 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2560 | .idVendor = 0x045e, |
2561 | .idProduct = 0x00f8, |
2562 | .bInterfaceClass = USB_CLASS_VIDEO, |
2563 | .bInterfaceSubClass = 1, |
2564 | .bInterfaceProtocol = 0, |
2565 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2566 | /* Microsoft Lifecam NX-3000 */ |
2567 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2568 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2569 | .idVendor = 0x045e, |
2570 | .idProduct = 0x0721, |
2571 | .bInterfaceClass = USB_CLASS_VIDEO, |
2572 | .bInterfaceSubClass = 1, |
2573 | .bInterfaceProtocol = 0, |
2574 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2575 | /* Microsoft Lifecam VX-7000 */ |
2576 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2577 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2578 | .idVendor = 0x045e, |
2579 | .idProduct = 0x0723, |
2580 | .bInterfaceClass = USB_CLASS_VIDEO, |
2581 | .bInterfaceSubClass = 1, |
2582 | .bInterfaceProtocol = 0, |
2583 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2584 | /* Logitech, Webcam C910 */ |
2585 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2586 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2587 | .idVendor = 0x046d, |
2588 | .idProduct = 0x0821, |
2589 | .bInterfaceClass = USB_CLASS_VIDEO, |
2590 | .bInterfaceSubClass = 1, |
2591 | .bInterfaceProtocol = 0, |
2592 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_WAKE_AUTOSUSPEND)}, |
2593 | /* Logitech, Webcam B910 */ |
2594 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2595 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2596 | .idVendor = 0x046d, |
2597 | .idProduct = 0x0823, |
2598 | .bInterfaceClass = USB_CLASS_VIDEO, |
2599 | .bInterfaceSubClass = 1, |
2600 | .bInterfaceProtocol = 0, |
2601 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_WAKE_AUTOSUSPEND)}, |
2602 | /* Logitech Quickcam Fusion */ |
2603 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2604 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2605 | .idVendor = 0x046d, |
2606 | .idProduct = 0x08c1, |
2607 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2608 | .bInterfaceSubClass = 1, |
2609 | .bInterfaceProtocol = 0 }, |
2610 | /* Logitech Quickcam Orbit MP */ |
2611 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2612 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2613 | .idVendor = 0x046d, |
2614 | .idProduct = 0x08c2, |
2615 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2616 | .bInterfaceSubClass = 1, |
2617 | .bInterfaceProtocol = 0 }, |
2618 | /* Logitech Quickcam Pro for Notebook */ |
2619 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2620 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2621 | .idVendor = 0x046d, |
2622 | .idProduct = 0x08c3, |
2623 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2624 | .bInterfaceSubClass = 1, |
2625 | .bInterfaceProtocol = 0 }, |
2626 | /* Logitech Quickcam Pro 5000 */ |
2627 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2628 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2629 | .idVendor = 0x046d, |
2630 | .idProduct = 0x08c5, |
2631 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2632 | .bInterfaceSubClass = 1, |
2633 | .bInterfaceProtocol = 0 }, |
2634 | /* Logitech Quickcam OEM Dell Notebook */ |
2635 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2636 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2637 | .idVendor = 0x046d, |
2638 | .idProduct = 0x08c6, |
2639 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2640 | .bInterfaceSubClass = 1, |
2641 | .bInterfaceProtocol = 0 }, |
2642 | /* Logitech Quickcam OEM Cisco VT Camera II */ |
2643 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2644 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2645 | .idVendor = 0x046d, |
2646 | .idProduct = 0x08c7, |
2647 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2648 | .bInterfaceSubClass = 1, |
2649 | .bInterfaceProtocol = 0 }, |
2650 | /* Logitech HD Pro Webcam C920 */ |
2651 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2652 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2653 | .idVendor = 0x046d, |
2654 | .idProduct = 0x082d, |
2655 | .bInterfaceClass = USB_CLASS_VIDEO, |
2656 | .bInterfaceSubClass = 1, |
2657 | .bInterfaceProtocol = 0, |
2658 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTORE_CTRLS_ON_INIT |
2659 | | UVC_QUIRK_INVALID_DEVICE_SOF) }, |
2660 | /* Logitech HD Pro Webcam C922 */ |
2661 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2662 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2663 | .idVendor = 0x046d, |
2664 | .idProduct = 0x085c, |
2665 | .bInterfaceClass = USB_CLASS_VIDEO, |
2666 | .bInterfaceSubClass = 1, |
2667 | .bInterfaceProtocol = 0, |
2668 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_INVALID_DEVICE_SOF) }, |
2669 | /* Logitech Rally Bar Huddle */ |
2670 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2671 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2672 | .idVendor = 0x046d, |
2673 | .idProduct = 0x087c, |
2674 | .bInterfaceClass = USB_CLASS_VIDEO, |
2675 | .bInterfaceSubClass = 1, |
2676 | .bInterfaceProtocol = 0, |
2677 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
2678 | /* Logitech Rally Bar */ |
2679 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2680 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2681 | .idVendor = 0x046d, |
2682 | .idProduct = 0x089b, |
2683 | .bInterfaceClass = USB_CLASS_VIDEO, |
2684 | .bInterfaceSubClass = 1, |
2685 | .bInterfaceProtocol = 0, |
2686 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
2687 | /* Logitech Rally Bar Mini */ |
2688 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2689 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2690 | .idVendor = 0x046d, |
2691 | .idProduct = 0x08d3, |
2692 | .bInterfaceClass = USB_CLASS_VIDEO, |
2693 | .bInterfaceSubClass = 1, |
2694 | .bInterfaceProtocol = 0, |
2695 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
2696 | /* Chicony CNF7129 (Asus EEE 100HE) */ |
2697 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2698 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2699 | .idVendor = 0x04f2, |
2700 | .idProduct = 0xb071, |
2701 | .bInterfaceClass = USB_CLASS_VIDEO, |
2702 | .bInterfaceSubClass = 1, |
2703 | .bInterfaceProtocol = 0, |
2704 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTRICT_FRAME_RATE) }, |
2705 | /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ |
2706 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2707 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2708 | .idVendor = 0x058f, |
2709 | .idProduct = 0x3820, |
2710 | .bInterfaceClass = USB_CLASS_VIDEO, |
2711 | .bInterfaceSubClass = 1, |
2712 | .bInterfaceProtocol = 0, |
2713 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2714 | /* Dell XPS m1530 */ |
2715 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2716 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2717 | .idVendor = 0x05a9, |
2718 | .idProduct = 0x2640, |
2719 | .bInterfaceClass = USB_CLASS_VIDEO, |
2720 | .bInterfaceSubClass = 1, |
2721 | .bInterfaceProtocol = 0, |
2722 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2723 | /* Dell SP2008WFP Monitor */ |
2724 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2725 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2726 | .idVendor = 0x05a9, |
2727 | .idProduct = 0x2641, |
2728 | .bInterfaceClass = USB_CLASS_VIDEO, |
2729 | .bInterfaceSubClass = 1, |
2730 | .bInterfaceProtocol = 0, |
2731 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2732 | /* Dell Alienware X51 */ |
2733 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2734 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2735 | .idVendor = 0x05a9, |
2736 | .idProduct = 0x2643, |
2737 | .bInterfaceClass = USB_CLASS_VIDEO, |
2738 | .bInterfaceSubClass = 1, |
2739 | .bInterfaceProtocol = 0, |
2740 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2741 | /* Dell Studio Hybrid 140g (OmniVision webcam) */ |
2742 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2743 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2744 | .idVendor = 0x05a9, |
2745 | .idProduct = 0x264a, |
2746 | .bInterfaceClass = USB_CLASS_VIDEO, |
2747 | .bInterfaceSubClass = 1, |
2748 | .bInterfaceProtocol = 0, |
2749 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2750 | /* Dell XPS M1330 (OmniVision OV7670 webcam) */ |
2751 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2752 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2753 | .idVendor = 0x05a9, |
2754 | .idProduct = 0x7670, |
2755 | .bInterfaceClass = USB_CLASS_VIDEO, |
2756 | .bInterfaceSubClass = 1, |
2757 | .bInterfaceProtocol = 0, |
2758 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2759 | /* Apple Built-In iSight */ |
2760 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2761 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2762 | .idVendor = 0x05ac, |
2763 | .idProduct = 0x8501, |
2764 | .bInterfaceClass = USB_CLASS_VIDEO, |
2765 | .bInterfaceSubClass = 1, |
2766 | .bInterfaceProtocol = 0, |
2767 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
2768 | | UVC_QUIRK_BUILTIN_ISIGHT) }, |
2769 | /* Apple FaceTime HD Camera (Built-In) */ |
2770 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2771 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2772 | .idVendor = 0x05ac, |
2773 | .idProduct = 0x8514, |
2774 | .bInterfaceClass = USB_CLASS_VIDEO, |
2775 | .bInterfaceSubClass = 1, |
2776 | .bInterfaceProtocol = 0, |
2777 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2778 | /* Apple Built-In iSight via iBridge */ |
2779 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2780 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2781 | .idVendor = 0x05ac, |
2782 | .idProduct = 0x8600, |
2783 | .bInterfaceClass = USB_CLASS_VIDEO, |
2784 | .bInterfaceSubClass = 1, |
2785 | .bInterfaceProtocol = 0, |
2786 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
2787 | /* Foxlink ("HP Webcam" on HP Mini 5103) */ |
2788 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2789 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2790 | .idVendor = 0x05c8, |
2791 | .idProduct = 0x0403, |
2792 | .bInterfaceClass = USB_CLASS_VIDEO, |
2793 | .bInterfaceSubClass = 1, |
2794 | .bInterfaceProtocol = 0, |
2795 | .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
2796 | /* Genesys Logic USB 2.0 PC Camera */ |
2797 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2798 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2799 | .idVendor = 0x05e3, |
2800 | .idProduct = 0x0505, |
2801 | .bInterfaceClass = USB_CLASS_VIDEO, |
2802 | .bInterfaceSubClass = 1, |
2803 | .bInterfaceProtocol = 0, |
2804 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2805 | /* Hercules Classic Silver */ |
2806 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2807 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2808 | .idVendor = 0x06f8, |
2809 | .idProduct = 0x300c, |
2810 | .bInterfaceClass = USB_CLASS_VIDEO, |
2811 | .bInterfaceSubClass = 1, |
2812 | .bInterfaceProtocol = 0, |
2813 | .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
2814 | /* ViMicro Vega */ |
2815 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2816 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2817 | .idVendor = 0x0ac8, |
2818 | .idProduct = 0x332d, |
2819 | .bInterfaceClass = USB_CLASS_VIDEO, |
2820 | .bInterfaceSubClass = 1, |
2821 | .bInterfaceProtocol = 0, |
2822 | .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
2823 | /* ViMicro - Minoru3D */ |
2824 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2825 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2826 | .idVendor = 0x0ac8, |
2827 | .idProduct = 0x3410, |
2828 | .bInterfaceClass = USB_CLASS_VIDEO, |
2829 | .bInterfaceSubClass = 1, |
2830 | .bInterfaceProtocol = 0, |
2831 | .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
2832 | /* ViMicro Venus - Minoru3D */ |
2833 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2834 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2835 | .idVendor = 0x0ac8, |
2836 | .idProduct = 0x3420, |
2837 | .bInterfaceClass = USB_CLASS_VIDEO, |
2838 | .bInterfaceSubClass = 1, |
2839 | .bInterfaceProtocol = 0, |
2840 | .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
2841 | /* Ophir Optronics - SPCAM 620U */ |
2842 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2843 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2844 | .idVendor = 0x0bd3, |
2845 | .idProduct = 0x0555, |
2846 | .bInterfaceClass = USB_CLASS_VIDEO, |
2847 | .bInterfaceSubClass = 1, |
2848 | .bInterfaceProtocol = 0, |
2849 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2850 | /* Sonix Technology Co. Ltd. - 292A IPC AR0330 */ |
2851 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2852 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2853 | .idVendor = 0x0c45, |
2854 | .idProduct = 0x6366, |
2855 | .bInterfaceClass = USB_CLASS_VIDEO, |
2856 | .bInterfaceSubClass = 1, |
2857 | .bInterfaceProtocol = 0, |
2858 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_MJPEG_NO_EOF) }, |
2859 | /* MT6227 */ |
2860 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2861 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2862 | .idVendor = 0x0e8d, |
2863 | .idProduct = 0x0004, |
2864 | .bInterfaceClass = USB_CLASS_VIDEO, |
2865 | .bInterfaceSubClass = 1, |
2866 | .bInterfaceProtocol = 0, |
2867 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
2868 | | UVC_QUIRK_PROBE_DEF) }, |
2869 | /* IMC Networks (Medion Akoya) */ |
2870 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2871 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2872 | .idVendor = 0x13d3, |
2873 | .idProduct = 0x5103, |
2874 | .bInterfaceClass = USB_CLASS_VIDEO, |
2875 | .bInterfaceSubClass = 1, |
2876 | .bInterfaceProtocol = 0, |
2877 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2878 | /* JMicron USB2.0 XGA WebCam */ |
2879 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2880 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2881 | .idVendor = 0x152d, |
2882 | .idProduct = 0x0310, |
2883 | .bInterfaceClass = USB_CLASS_VIDEO, |
2884 | .bInterfaceSubClass = 1, |
2885 | .bInterfaceProtocol = 0, |
2886 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
2887 | /* Kurokesu C1 PRO */ |
2888 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2889 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2890 | .idVendor = 0x16d0, |
2891 | .idProduct = 0x0ed1, |
2892 | .bInterfaceClass = USB_CLASS_VIDEO, |
2893 | .bInterfaceSubClass = 1, |
2894 | .bInterfaceProtocol = 0, |
2895 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_MJPEG_NO_EOF) }, |
2896 | /* Syntek (HP Spartan) */ |
2897 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2898 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2899 | .idVendor = 0x174f, |
2900 | .idProduct = 0x5212, |
2901 | .bInterfaceClass = USB_CLASS_VIDEO, |
2902 | .bInterfaceSubClass = 1, |
2903 | .bInterfaceProtocol = 0, |
2904 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2905 | /* Syntek (Samsung Q310) */ |
2906 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2907 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2908 | .idVendor = 0x174f, |
2909 | .idProduct = 0x5931, |
2910 | .bInterfaceClass = USB_CLASS_VIDEO, |
2911 | .bInterfaceSubClass = 1, |
2912 | .bInterfaceProtocol = 0, |
2913 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2914 | /* Syntek (Packard Bell EasyNote MX52 */ |
2915 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2916 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2917 | .idVendor = 0x174f, |
2918 | .idProduct = 0x8a12, |
2919 | .bInterfaceClass = USB_CLASS_VIDEO, |
2920 | .bInterfaceSubClass = 1, |
2921 | .bInterfaceProtocol = 0, |
2922 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2923 | /* Syntek (Asus F9SG) */ |
2924 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2925 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2926 | .idVendor = 0x174f, |
2927 | .idProduct = 0x8a31, |
2928 | .bInterfaceClass = USB_CLASS_VIDEO, |
2929 | .bInterfaceSubClass = 1, |
2930 | .bInterfaceProtocol = 0, |
2931 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2932 | /* Syntek (Asus U3S) */ |
2933 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2934 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2935 | .idVendor = 0x174f, |
2936 | .idProduct = 0x8a33, |
2937 | .bInterfaceClass = USB_CLASS_VIDEO, |
2938 | .bInterfaceSubClass = 1, |
2939 | .bInterfaceProtocol = 0, |
2940 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2941 | /* Syntek (JAOtech Smart Terminal) */ |
2942 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2943 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2944 | .idVendor = 0x174f, |
2945 | .idProduct = 0x8a34, |
2946 | .bInterfaceClass = USB_CLASS_VIDEO, |
2947 | .bInterfaceSubClass = 1, |
2948 | .bInterfaceProtocol = 0, |
2949 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2950 | /* Miricle 307K */ |
2951 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2952 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2953 | .idVendor = 0x17dc, |
2954 | .idProduct = 0x0202, |
2955 | .bInterfaceClass = USB_CLASS_VIDEO, |
2956 | .bInterfaceSubClass = 1, |
2957 | .bInterfaceProtocol = 0, |
2958 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2959 | /* Lenovo Thinkpad SL400/SL500 */ |
2960 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2961 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2962 | .idVendor = 0x17ef, |
2963 | .idProduct = 0x480b, |
2964 | .bInterfaceClass = USB_CLASS_VIDEO, |
2965 | .bInterfaceSubClass = 1, |
2966 | .bInterfaceProtocol = 0, |
2967 | .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
2968 | /* Aveo Technology USB 2.0 Camera */ |
2969 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2970 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2971 | .idVendor = 0x1871, |
2972 | .idProduct = 0x0306, |
2973 | .bInterfaceClass = USB_CLASS_VIDEO, |
2974 | .bInterfaceSubClass = 1, |
2975 | .bInterfaceProtocol = 0, |
2976 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
2977 | | UVC_QUIRK_PROBE_EXTRAFIELDS) }, |
2978 | /* Aveo Technology USB 2.0 Camera (Tasco USB Microscope) */ |
2979 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2980 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2981 | .idVendor = 0x1871, |
2982 | .idProduct = 0x0516, |
2983 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
2984 | .bInterfaceSubClass = 1, |
2985 | .bInterfaceProtocol = 0 }, |
2986 | /* Ecamm Pico iMage */ |
2987 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2988 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2989 | .idVendor = 0x18cd, |
2990 | .idProduct = 0xcafe, |
2991 | .bInterfaceClass = USB_CLASS_VIDEO, |
2992 | .bInterfaceSubClass = 1, |
2993 | .bInterfaceProtocol = 0, |
2994 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_EXTRAFIELDS) }, |
2995 | /* Manta MM-353 Plako */ |
2996 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2997 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2998 | .idVendor = 0x18ec, |
2999 | .idProduct = 0x3188, |
3000 | .bInterfaceClass = USB_CLASS_VIDEO, |
3001 | .bInterfaceSubClass = 1, |
3002 | .bInterfaceProtocol = 0, |
3003 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
3004 | /* FSC WebCam V30S */ |
3005 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3006 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3007 | .idVendor = 0x18ec, |
3008 | .idProduct = 0x3288, |
3009 | .bInterfaceClass = USB_CLASS_VIDEO, |
3010 | .bInterfaceSubClass = 1, |
3011 | .bInterfaceProtocol = 0, |
3012 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
3013 | /* Arkmicro unbranded */ |
3014 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3015 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3016 | .idVendor = 0x18ec, |
3017 | .idProduct = 0x3290, |
3018 | .bInterfaceClass = USB_CLASS_VIDEO, |
3019 | .bInterfaceSubClass = 1, |
3020 | .bInterfaceProtocol = 0, |
3021 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
3022 | /* The Imaging Source USB CCD cameras */ |
3023 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3024 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3025 | .idVendor = 0x199e, |
3026 | .idProduct = 0x8102, |
3027 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
3028 | .bInterfaceSubClass = 1, |
3029 | .bInterfaceProtocol = 0 }, |
3030 | /* Bodelin ProScopeHR */ |
3031 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3032 | | USB_DEVICE_ID_MATCH_DEV_HI |
3033 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3034 | .idVendor = 0x19ab, |
3035 | .idProduct = 0x1000, |
3036 | .bcdDevice_hi = 0x0126, |
3037 | .bInterfaceClass = USB_CLASS_VIDEO, |
3038 | .bInterfaceSubClass = 1, |
3039 | .bInterfaceProtocol = 0, |
3040 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_STATUS_INTERVAL) }, |
3041 | /* MSI StarCam 370i */ |
3042 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3043 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3044 | .idVendor = 0x1b3b, |
3045 | .idProduct = 0x2951, |
3046 | .bInterfaceClass = USB_CLASS_VIDEO, |
3047 | .bInterfaceSubClass = 1, |
3048 | .bInterfaceProtocol = 0, |
3049 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
3050 | /* Generalplus Technology Inc. 808 Camera */ |
3051 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3052 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3053 | .idVendor = 0x1b3f, |
3054 | .idProduct = 0x2002, |
3055 | .bInterfaceClass = USB_CLASS_VIDEO, |
3056 | .bInterfaceSubClass = 1, |
3057 | .bInterfaceProtocol = 0, |
3058 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
3059 | /* Shenzhen Aoni Electronic Co.,Ltd 2K FHD camera */ |
3060 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3061 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3062 | .idVendor = 0x1bcf, |
3063 | .idProduct = 0x0b40, |
3064 | .bInterfaceClass = USB_CLASS_VIDEO, |
3065 | .bInterfaceSubClass = 1, |
3066 | .bInterfaceProtocol = 0, |
3067 | .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){ |
3068 | .uvc_version = 0x010a, |
3069 | } }, |
3070 | /* SiGma Micro USB Web Camera */ |
3071 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3072 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3073 | .idVendor = 0x1c4f, |
3074 | .idProduct = 0x3000, |
3075 | .bInterfaceClass = USB_CLASS_VIDEO, |
3076 | .bInterfaceSubClass = 1, |
3077 | .bInterfaceProtocol = 0, |
3078 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
3079 | | UVC_QUIRK_IGNORE_SELECTOR_UNIT) }, |
3080 | /* Actions Microelectronics Co. Display capture-UVC05 */ |
3081 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3082 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3083 | .idVendor = 0x1de1, |
3084 | .idProduct = 0xf105, |
3085 | .bInterfaceClass = USB_CLASS_VIDEO, |
3086 | .bInterfaceSubClass = 1, |
3087 | .bInterfaceProtocol = 0, |
3088 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_DISABLE_AUTOSUSPEND) }, |
3089 | /* NXP Semiconductors IR VIDEO */ |
3090 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3091 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3092 | .idVendor = 0x1fc9, |
3093 | .idProduct = 0x009b, |
3094 | .bInterfaceClass = USB_CLASS_VIDEO, |
3095 | .bInterfaceSubClass = 1, |
3096 | .bInterfaceProtocol = 0, |
3097 | .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
3098 | /* Oculus VR Positional Tracker DK2 */ |
3099 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3100 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3101 | .idVendor = 0x2833, |
3102 | .idProduct = 0x0201, |
3103 | .bInterfaceClass = USB_CLASS_VIDEO, |
3104 | .bInterfaceSubClass = 1, |
3105 | .bInterfaceProtocol = 0, |
3106 | .driver_info = (kernel_ulong_t)&uvc_quirk_force_y8 }, |
3107 | /* Oculus VR Rift Sensor */ |
3108 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3109 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3110 | .idVendor = 0x2833, |
3111 | .idProduct = 0x0211, |
3112 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
3113 | .bInterfaceSubClass = 1, |
3114 | .bInterfaceProtocol = 0, |
3115 | .driver_info = (kernel_ulong_t)&uvc_quirk_force_y8 }, |
3116 | /* GEO Semiconductor GC6500 */ |
3117 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3118 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3119 | .idVendor = 0x29fe, |
3120 | .idProduct = 0x4d53, |
3121 | .bInterfaceClass = USB_CLASS_VIDEO, |
3122 | .bInterfaceSubClass = 1, |
3123 | .bInterfaceProtocol = 0, |
3124 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_FORCE_BPP) }, |
3125 | /* Insta360 Link */ |
3126 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3127 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3128 | .idVendor = 0x2e1a, |
3129 | .idProduct = 0x4c01, |
3130 | .bInterfaceClass = USB_CLASS_VIDEO, |
3131 | .bInterfaceSubClass = 1, |
3132 | .bInterfaceProtocol = 0, |
3133 | .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_DISABLE_AUTOSUSPEND) }, |
3134 | /* Intel D410/ASR depth camera */ |
3135 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3136 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3137 | .idVendor = 0x8086, |
3138 | .idProduct = 0x0ad2, |
3139 | .bInterfaceClass = USB_CLASS_VIDEO, |
3140 | .bInterfaceSubClass = 1, |
3141 | .bInterfaceProtocol = 0, |
3142 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3143 | /* Intel D415/ASRC depth camera */ |
3144 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3145 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3146 | .idVendor = 0x8086, |
3147 | .idProduct = 0x0ad3, |
3148 | .bInterfaceClass = USB_CLASS_VIDEO, |
3149 | .bInterfaceSubClass = 1, |
3150 | .bInterfaceProtocol = 0, |
3151 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3152 | /* Intel D430/AWG depth camera */ |
3153 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3154 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3155 | .idVendor = 0x8086, |
3156 | .idProduct = 0x0ad4, |
3157 | .bInterfaceClass = USB_CLASS_VIDEO, |
3158 | .bInterfaceSubClass = 1, |
3159 | .bInterfaceProtocol = 0, |
3160 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3161 | /* Intel RealSense D4M */ |
3162 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3163 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3164 | .idVendor = 0x8086, |
3165 | .idProduct = 0x0b03, |
3166 | .bInterfaceClass = USB_CLASS_VIDEO, |
3167 | .bInterfaceSubClass = 1, |
3168 | .bInterfaceProtocol = 0, |
3169 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3170 | /* Intel D435/AWGC depth camera */ |
3171 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3172 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3173 | .idVendor = 0x8086, |
3174 | .idProduct = 0x0b07, |
3175 | .bInterfaceClass = USB_CLASS_VIDEO, |
3176 | .bInterfaceSubClass = 1, |
3177 | .bInterfaceProtocol = 0, |
3178 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3179 | /* Intel D435i depth camera */ |
3180 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3181 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3182 | .idVendor = 0x8086, |
3183 | .idProduct = 0x0b3a, |
3184 | .bInterfaceClass = USB_CLASS_VIDEO, |
3185 | .bInterfaceSubClass = 1, |
3186 | .bInterfaceProtocol = 0, |
3187 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3188 | /* Intel D405 Depth Camera */ |
3189 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3190 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3191 | .idVendor = 0x8086, |
3192 | .idProduct = 0x0b5b, |
3193 | .bInterfaceClass = USB_CLASS_VIDEO, |
3194 | .bInterfaceSubClass = 1, |
3195 | .bInterfaceProtocol = 0, |
3196 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3197 | /* Intel D455 Depth Camera */ |
3198 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3199 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3200 | .idVendor = 0x8086, |
3201 | .idProduct = 0x0b5c, |
3202 | .bInterfaceClass = USB_CLASS_VIDEO, |
3203 | .bInterfaceSubClass = 1, |
3204 | .bInterfaceProtocol = 0, |
3205 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3206 | /* Intel D421 Depth Module */ |
3207 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
3208 | | USB_DEVICE_ID_MATCH_INT_INFO, |
3209 | .idVendor = 0x8086, |
3210 | .idProduct = 0x1155, |
3211 | .bInterfaceClass = USB_CLASS_VIDEO, |
3212 | .bInterfaceSubClass = 1, |
3213 | .bInterfaceProtocol = 0, |
3214 | .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, |
3215 | /* Generic USB Video Class */ |
3216 | { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) }, |
3217 | { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) }, |
3218 | {} |
3219 | }; |
3220 | |
3221 | MODULE_DEVICE_TABLE(usb, uvc_ids); |
3222 | |
3223 | static struct usb_driver uvc_driver = { |
3224 | .name = "uvcvideo", |
3225 | .probe = uvc_probe, |
3226 | .disconnect = uvc_disconnect, |
3227 | .suspend = uvc_suspend, |
3228 | .resume = uvc_resume, |
3229 | .reset_resume = uvc_reset_resume, |
3230 | .id_table = uvc_ids, |
3231 | .supports_autosuspend = 1, |
3232 | }; |
3233 | |
3234 | static int __init uvc_init(void) |
3235 | { |
3236 | int ret; |
3237 | |
3238 | uvc_debugfs_init(); |
3239 | |
3240 | ret = usb_register(&uvc_driver); |
3241 | if (ret < 0) { |
3242 | uvc_debugfs_cleanup(); |
3243 | return ret; |
3244 | } |
3245 | |
3246 | return 0; |
3247 | } |
3248 | |
3249 | static void __exit uvc_cleanup(void) |
3250 | { |
3251 | usb_deregister(&uvc_driver); |
3252 | uvc_debugfs_cleanup(); |
3253 | } |
3254 | |
3255 | module_init(uvc_init); |
3256 | module_exit(uvc_cleanup); |
3257 | |
3258 | MODULE_AUTHOR(DRIVER_AUTHOR); |
3259 | MODULE_DESCRIPTION(DRIVER_DESC); |
3260 | MODULE_LICENSE("GPL"); |
3261 | MODULE_VERSION(DRIVER_VERSION); |
3262 | |
3263 |
Definitions
- uvc_clock_param
- uvc_hw_timestamps_param
- uvc_no_drop_param
- uvc_quirks_param
- uvc_dbg_param
- uvc_timeout_param
- uvc_driver
- uvc_find_endpoint
- uvc_colorspace
- uvc_xfer_func
- uvc_ycbcr_enc
- uvc_entity_by_id
- uvc_entity_by_reference
- uvc_stream_by_id
- uvc_stream_delete
- uvc_stream_new
- uvc_parse_frame
- uvc_parse_format
- uvc_parse_streaming
- uvc_camera_guid
- uvc_gpio_guid
- uvc_media_transport_input_guid
- uvc_processing_guid
- uvc_alloc_entity
- uvc_entity_set_name
- uvc_parse_vendor_control
- uvc_parse_standard_control
- uvc_parse_control
- uvc_gpio_event
- uvc_gpio_get_cur
- uvc_gpio_get_info
- uvc_gpio_irq
- uvc_gpio_parse
- uvc_gpio_init_irq
- uvc_gpio_deinit
- uvc_scan_chain_entity
- uvc_scan_chain_forward
- uvc_scan_chain_backward
- uvc_scan_chain
- uvc_print_terms
- uvc_print_chain
- uvc_alloc_chain
- uvc_scan_fallback
- uvc_scan_device
- uvc_delete
- uvc_release
- uvc_unregister_video
- uvc_register_video_device
- uvc_register_video
- uvc_register_terms
- uvc_register_chains
- uvc_quirk_none
- uvc_probe
- uvc_disconnect
- uvc_suspend
- __uvc_resume
- uvc_resume
- uvc_reset_resume
- uvc_clock_param_get
- uvc_clock_param_set
- param_set_nodrop
- param_ops_nodrop
- uvc_quirk_probe_minmax
- uvc_quirk_fix_bandwidth
- uvc_quirk_probe_def
- uvc_quirk_stream_no_fid
- uvc_quirk_force_y8
- uvc_ids
- uvc_driver
- uvc_init
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