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Commit | Line | Data |
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c0efd232 LP |
1 | /* |
2 | * uvc_driver.c -- USB Video Class driver | |
3 | * | |
11fc5baf LP |
4 | * Copyright (C) 2005-2010 |
5 | * Laurent Pinchart (laurent.pinchart@ideasonboard.com) | |
c0efd232 LP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
66ede038 | 14 | #include <linux/atomic.h> |
c0efd232 | 15 | #include <linux/kernel.h> |
c0efd232 LP |
16 | #include <linux/list.h> |
17 | #include <linux/module.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
c0efd232 LP |
19 | #include <linux/usb.h> |
20 | #include <linux/videodev2.h> | |
21 | #include <linux/vmalloc.h> | |
22 | #include <linux/wait.h> | |
fd3e5824 | 23 | #include <linux/version.h> |
9bc6218d | 24 | #include <asm/unaligned.h> |
c0efd232 LP |
25 | |
26 | #include <media/v4l2-common.h> | |
27 | ||
28 | #include "uvcvideo.h" | |
29 | ||
11fc5baf LP |
30 | #define DRIVER_AUTHOR "Laurent Pinchart " \ |
31 | "<laurent.pinchart@ideasonboard.com>" | |
c0efd232 | 32 | #define DRIVER_DESC "USB Video Class driver" |
c0efd232 | 33 | |
310fe524 | 34 | unsigned int uvc_clock_param = CLOCK_MONOTONIC; |
5d0fd3c8 | 35 | unsigned int uvc_hw_timestamps_param; |
0fbd8ee6 | 36 | unsigned int uvc_no_drop_param; |
73de3592 | 37 | static unsigned int uvc_quirks_param = -1; |
c0efd232 | 38 | unsigned int uvc_trace_param; |
b232a012 | 39 | unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT; |
c0efd232 LP |
40 | |
41 | /* ------------------------------------------------------------------------ | |
2c2d264b | 42 | * Video formats |
c0efd232 LP |
43 | */ |
44 | ||
45 | static struct uvc_format_desc uvc_fmts[] = { | |
46 | { | |
47 | .name = "YUV 4:2:2 (YUYV)", | |
48 | .guid = UVC_GUID_FORMAT_YUY2, | |
49 | .fcc = V4L2_PIX_FMT_YUYV, | |
50 | }, | |
68f194e0 DR |
51 | { |
52 | .name = "YUV 4:2:2 (YUYV)", | |
53 | .guid = UVC_GUID_FORMAT_YUY2_ISIGHT, | |
54 | .fcc = V4L2_PIX_FMT_YUYV, | |
55 | }, | |
c0efd232 LP |
56 | { |
57 | .name = "YUV 4:2:0 (NV12)", | |
58 | .guid = UVC_GUID_FORMAT_NV12, | |
59 | .fcc = V4L2_PIX_FMT_NV12, | |
60 | }, | |
61 | { | |
62 | .name = "MJPEG", | |
63 | .guid = UVC_GUID_FORMAT_MJPEG, | |
64 | .fcc = V4L2_PIX_FMT_MJPEG, | |
65 | }, | |
66 | { | |
67 | .name = "YVU 4:2:0 (YV12)", | |
68 | .guid = UVC_GUID_FORMAT_YV12, | |
69 | .fcc = V4L2_PIX_FMT_YVU420, | |
70 | }, | |
71 | { | |
72 | .name = "YUV 4:2:0 (I420)", | |
73 | .guid = UVC_GUID_FORMAT_I420, | |
74 | .fcc = V4L2_PIX_FMT_YUV420, | |
75 | }, | |
7225a1dc HG |
76 | { |
77 | .name = "YUV 4:2:0 (M420)", | |
78 | .guid = UVC_GUID_FORMAT_M420, | |
79 | .fcc = V4L2_PIX_FMT_M420, | |
80 | }, | |
c0efd232 LP |
81 | { |
82 | .name = "YUV 4:2:2 (UYVY)", | |
83 | .guid = UVC_GUID_FORMAT_UYVY, | |
84 | .fcc = V4L2_PIX_FMT_UYVY, | |
85 | }, | |
86 | { | |
ca47e719 | 87 | .name = "Greyscale 8-bit (Y800)", |
c0efd232 LP |
88 | .guid = UVC_GUID_FORMAT_Y800, |
89 | .fcc = V4L2_PIX_FMT_GREY, | |
90 | }, | |
61421206 | 91 | { |
ca47e719 SM |
92 | .name = "Greyscale 8-bit (Y8 )", |
93 | .guid = UVC_GUID_FORMAT_Y8, | |
94 | .fcc = V4L2_PIX_FMT_GREY, | |
95 | }, | |
96 | { | |
97 | .name = "Greyscale 10-bit (Y10 )", | |
98 | .guid = UVC_GUID_FORMAT_Y10, | |
99 | .fcc = V4L2_PIX_FMT_Y10, | |
100 | }, | |
101 | { | |
102 | .name = "Greyscale 12-bit (Y12 )", | |
103 | .guid = UVC_GUID_FORMAT_Y12, | |
104 | .fcc = V4L2_PIX_FMT_Y12, | |
105 | }, | |
106 | { | |
107 | .name = "Greyscale 16-bit (Y16 )", | |
61421206 LP |
108 | .guid = UVC_GUID_FORMAT_Y16, |
109 | .fcc = V4L2_PIX_FMT_Y16, | |
110 | }, | |
c0efd232 | 111 | { |
e72ed08e | 112 | .name = "BGGR Bayer (BY8 )", |
c0efd232 LP |
113 | .guid = UVC_GUID_FORMAT_BY8, |
114 | .fcc = V4L2_PIX_FMT_SBGGR8, | |
115 | }, | |
e72ed08e ET |
116 | { |
117 | .name = "BGGR Bayer (BA81)", | |
118 | .guid = UVC_GUID_FORMAT_BA81, | |
119 | .fcc = V4L2_PIX_FMT_SBGGR8, | |
120 | }, | |
121 | { | |
122 | .name = "GBRG Bayer (GBRG)", | |
123 | .guid = UVC_GUID_FORMAT_GBRG, | |
124 | .fcc = V4L2_PIX_FMT_SGBRG8, | |
125 | }, | |
126 | { | |
127 | .name = "GRBG Bayer (GRBG)", | |
128 | .guid = UVC_GUID_FORMAT_GRBG, | |
129 | .fcc = V4L2_PIX_FMT_SGRBG8, | |
130 | }, | |
131 | { | |
132 | .name = "RGGB Bayer (RGGB)", | |
133 | .guid = UVC_GUID_FORMAT_RGGB, | |
134 | .fcc = V4L2_PIX_FMT_SRGGB8, | |
135 | }, | |
50791079 LP |
136 | { |
137 | .name = "RGB565", | |
138 | .guid = UVC_GUID_FORMAT_RGBP, | |
139 | .fcc = V4L2_PIX_FMT_RGB565, | |
140 | }, | |
1b8dc322 WM |
141 | { |
142 | .name = "BGR 8:8:8 (BGR3)", | |
143 | .guid = UVC_GUID_FORMAT_BGR3, | |
144 | .fcc = V4L2_PIX_FMT_BGR24, | |
145 | }, | |
25ad8a8d SL |
146 | { |
147 | .name = "H.264", | |
148 | .guid = UVC_GUID_FORMAT_H264, | |
149 | .fcc = V4L2_PIX_FMT_H264, | |
150 | }, | |
5d8d8db8 AG |
151 | { |
152 | .name = "Greyscale 8 L/R (Y8I)", | |
153 | .guid = UVC_GUID_FORMAT_Y8I, | |
154 | .fcc = V4L2_PIX_FMT_Y8I, | |
155 | }, | |
156 | { | |
157 | .name = "Greyscale 12 L/R (Y12I)", | |
158 | .guid = UVC_GUID_FORMAT_Y12I, | |
159 | .fcc = V4L2_PIX_FMT_Y12I, | |
160 | }, | |
161 | { | |
162 | .name = "Depth data 16-bit (Z16)", | |
163 | .guid = UVC_GUID_FORMAT_Z16, | |
164 | .fcc = V4L2_PIX_FMT_Z16, | |
165 | }, | |
166 | { | |
167 | .name = "Bayer 10-bit (SRGGB10P)", | |
168 | .guid = UVC_GUID_FORMAT_RW10, | |
169 | .fcc = V4L2_PIX_FMT_SRGGB10P, | |
170 | }, | |
eb165a20 ET |
171 | { |
172 | .name = "Bayer 16-bit (SBGGR16)", | |
173 | .guid = UVC_GUID_FORMAT_BG16, | |
174 | .fcc = V4L2_PIX_FMT_SBGGR16, | |
175 | }, | |
176 | { | |
177 | .name = "Bayer 16-bit (SGBRG16)", | |
178 | .guid = UVC_GUID_FORMAT_GB16, | |
179 | .fcc = V4L2_PIX_FMT_SGBRG16, | |
180 | }, | |
181 | { | |
182 | .name = "Bayer 16-bit (SRGGB16)", | |
183 | .guid = UVC_GUID_FORMAT_RG16, | |
184 | .fcc = V4L2_PIX_FMT_SRGGB16, | |
185 | }, | |
186 | { | |
187 | .name = "Bayer 16-bit (SGRBG16)", | |
188 | .guid = UVC_GUID_FORMAT_GR16, | |
189 | .fcc = V4L2_PIX_FMT_SGRBG16, | |
190 | }, | |
c0efd232 LP |
191 | }; |
192 | ||
193 | /* ------------------------------------------------------------------------ | |
194 | * Utility functions | |
195 | */ | |
196 | ||
197 | struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, | |
198 | __u8 epaddr) | |
199 | { | |
200 | struct usb_host_endpoint *ep; | |
201 | unsigned int i; | |
202 | ||
203 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { | |
204 | ep = &alts->endpoint[i]; | |
205 | if (ep->desc.bEndpointAddress == epaddr) | |
206 | return ep; | |
207 | } | |
208 | ||
209 | return NULL; | |
210 | } | |
211 | ||
212 | static struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16]) | |
213 | { | |
214 | unsigned int len = ARRAY_SIZE(uvc_fmts); | |
215 | unsigned int i; | |
216 | ||
217 | for (i = 0; i < len; ++i) { | |
218 | if (memcmp(guid, uvc_fmts[i].guid, 16) == 0) | |
219 | return &uvc_fmts[i]; | |
220 | } | |
221 | ||
222 | return NULL; | |
223 | } | |
224 | ||
225 | static __u32 uvc_colorspace(const __u8 primaries) | |
226 | { | |
227 | static const __u8 colorprimaries[] = { | |
228 | 0, | |
229 | V4L2_COLORSPACE_SRGB, | |
230 | V4L2_COLORSPACE_470_SYSTEM_M, | |
231 | V4L2_COLORSPACE_470_SYSTEM_BG, | |
232 | V4L2_COLORSPACE_SMPTE170M, | |
233 | V4L2_COLORSPACE_SMPTE240M, | |
234 | }; | |
235 | ||
236 | if (primaries < ARRAY_SIZE(colorprimaries)) | |
237 | return colorprimaries[primaries]; | |
238 | ||
239 | return 0; | |
240 | } | |
241 | ||
242 | /* Simplify a fraction using a simple continued fraction decomposition. The | |
243 | * idea here is to convert fractions such as 333333/10000000 to 1/30 using | |
244 | * 32 bit arithmetic only. The algorithm is not perfect and relies upon two | |
245 | * arbitrary parameters to remove non-significative terms from the simple | |
246 | * continued fraction decomposition. Using 8 and 333 for n_terms and threshold | |
247 | * respectively seems to give nice results. | |
248 | */ | |
249 | void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, | |
250 | unsigned int n_terms, unsigned int threshold) | |
251 | { | |
252 | uint32_t *an; | |
253 | uint32_t x, y, r; | |
254 | unsigned int i, n; | |
255 | ||
256 | an = kmalloc(n_terms * sizeof *an, GFP_KERNEL); | |
257 | if (an == NULL) | |
258 | return; | |
259 | ||
260 | /* Convert the fraction to a simple continued fraction. See | |
261 | * http://mathforum.org/dr.math/faq/faq.fractions.html | |
262 | * Stop if the current term is bigger than or equal to the given | |
263 | * threshold. | |
264 | */ | |
265 | x = *numerator; | |
266 | y = *denominator; | |
267 | ||
268 | for (n = 0; n < n_terms && y != 0; ++n) { | |
269 | an[n] = x / y; | |
270 | if (an[n] >= threshold) { | |
271 | if (n < 2) | |
272 | n++; | |
273 | break; | |
274 | } | |
275 | ||
276 | r = x - an[n] * y; | |
277 | x = y; | |
278 | y = r; | |
279 | } | |
280 | ||
281 | /* Expand the simple continued fraction back to an integer fraction. */ | |
282 | x = 0; | |
283 | y = 1; | |
284 | ||
285 | for (i = n; i > 0; --i) { | |
286 | r = y; | |
287 | y = an[i-1] * y + x; | |
288 | x = r; | |
289 | } | |
290 | ||
291 | *numerator = y; | |
292 | *denominator = x; | |
293 | kfree(an); | |
294 | } | |
295 | ||
296 | /* Convert a fraction to a frame interval in 100ns multiples. The idea here is | |
297 | * to compute numerator / denominator * 10000000 using 32 bit fixed point | |
298 | * arithmetic only. | |
299 | */ | |
300 | uint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator) | |
301 | { | |
302 | uint32_t multiplier; | |
303 | ||
304 | /* Saturate the result if the operation would overflow. */ | |
305 | if (denominator == 0 || | |
306 | numerator/denominator >= ((uint32_t)-1)/10000000) | |
307 | return (uint32_t)-1; | |
308 | ||
309 | /* Divide both the denominator and the multiplier by two until | |
310 | * numerator * multiplier doesn't overflow. If anyone knows a better | |
311 | * algorithm please let me know. | |
312 | */ | |
313 | multiplier = 10000000; | |
314 | while (numerator > ((uint32_t)-1)/multiplier) { | |
315 | multiplier /= 2; | |
316 | denominator /= 2; | |
317 | } | |
318 | ||
319 | return denominator ? numerator * multiplier / denominator : 0; | |
320 | } | |
321 | ||
322 | /* ------------------------------------------------------------------------ | |
323 | * Terminal and unit management | |
324 | */ | |
325 | ||
4ffc2d89 | 326 | struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) |
c0efd232 LP |
327 | { |
328 | struct uvc_entity *entity; | |
329 | ||
330 | list_for_each_entry(entity, &dev->entities, list) { | |
331 | if (entity->id == id) | |
332 | return entity; | |
333 | } | |
334 | ||
335 | return NULL; | |
336 | } | |
337 | ||
338 | static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, | |
339 | int id, struct uvc_entity *entity) | |
340 | { | |
341 | unsigned int i; | |
342 | ||
343 | if (entity == NULL) | |
344 | entity = list_entry(&dev->entities, struct uvc_entity, list); | |
345 | ||
346 | list_for_each_entry_continue(entity, &dev->entities, list) { | |
8ca5a639 LP |
347 | for (i = 0; i < entity->bNrInPins; ++i) |
348 | if (entity->baSourceID[i] == id) | |
c0efd232 | 349 | return entity; |
c0efd232 LP |
350 | } |
351 | ||
352 | return NULL; | |
353 | } | |
354 | ||
8e113595 LP |
355 | static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) |
356 | { | |
357 | struct uvc_streaming *stream; | |
358 | ||
359 | list_for_each_entry(stream, &dev->streams, list) { | |
360 | if (stream->header.bTerminalLink == id) | |
361 | return stream; | |
362 | } | |
363 | ||
364 | return NULL; | |
365 | } | |
366 | ||
c0efd232 | 367 | /* ------------------------------------------------------------------------ |
8e113595 | 368 | * Descriptors parsing |
c0efd232 LP |
369 | */ |
370 | ||
371 | static int uvc_parse_format(struct uvc_device *dev, | |
372 | struct uvc_streaming *streaming, struct uvc_format *format, | |
373 | __u32 **intervals, unsigned char *buffer, int buflen) | |
374 | { | |
375 | struct usb_interface *intf = streaming->intf; | |
376 | struct usb_host_interface *alts = intf->cur_altsetting; | |
377 | struct uvc_format_desc *fmtdesc; | |
378 | struct uvc_frame *frame; | |
379 | const unsigned char *start = buffer; | |
e1b78a33 | 380 | unsigned int width_multiplier = 1; |
c0efd232 LP |
381 | unsigned int interval; |
382 | unsigned int i, n; | |
383 | __u8 ftype; | |
384 | ||
385 | format->type = buffer[2]; | |
386 | format->index = buffer[3]; | |
387 | ||
388 | switch (buffer[2]) { | |
b482d923 LP |
389 | case UVC_VS_FORMAT_UNCOMPRESSED: |
390 | case UVC_VS_FORMAT_FRAME_BASED: | |
391 | n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; | |
233548a2 | 392 | if (buflen < n) { |
b2d9cc42 | 393 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
394 | "interface %d FORMAT error\n", |
395 | dev->udev->devnum, | |
396 | alts->desc.bInterfaceNumber); | |
397 | return -EINVAL; | |
398 | } | |
399 | ||
400 | /* Find the format descriptor from its GUID. */ | |
401 | fmtdesc = uvc_format_by_guid(&buffer[5]); | |
402 | ||
403 | if (fmtdesc != NULL) { | |
d0ebf307 | 404 | strlcpy(format->name, fmtdesc->name, |
c0efd232 LP |
405 | sizeof format->name); |
406 | format->fcc = fmtdesc->fcc; | |
407 | } else { | |
36bd883e LP |
408 | uvc_printk(KERN_INFO, "Unknown video format %pUl\n", |
409 | &buffer[5]); | |
410 | snprintf(format->name, sizeof(format->name), "%pUl\n", | |
411 | &buffer[5]); | |
c0efd232 LP |
412 | format->fcc = 0; |
413 | } | |
414 | ||
415 | format->bpp = buffer[21]; | |
e1b78a33 PZ |
416 | |
417 | /* Some devices report a format that doesn't match what they | |
418 | * really send. | |
419 | */ | |
420 | if (dev->quirks & UVC_QUIRK_FORCE_Y8) { | |
421 | if (format->fcc == V4L2_PIX_FMT_YUYV) { | |
422 | strlcpy(format->name, "Greyscale 8-bit (Y8 )", | |
423 | sizeof(format->name)); | |
424 | format->fcc = V4L2_PIX_FMT_GREY; | |
425 | format->bpp = 8; | |
426 | width_multiplier = 2; | |
427 | } | |
428 | } | |
429 | ||
b482d923 LP |
430 | if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { |
431 | ftype = UVC_VS_FRAME_UNCOMPRESSED; | |
c0efd232 | 432 | } else { |
b482d923 | 433 | ftype = UVC_VS_FRAME_FRAME_BASED; |
c0efd232 LP |
434 | if (buffer[27]) |
435 | format->flags = UVC_FMT_FLAG_COMPRESSED; | |
436 | } | |
437 | break; | |
438 | ||
b482d923 | 439 | case UVC_VS_FORMAT_MJPEG: |
c0efd232 | 440 | if (buflen < 11) { |
b2d9cc42 | 441 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
442 | "interface %d FORMAT error\n", |
443 | dev->udev->devnum, | |
444 | alts->desc.bInterfaceNumber); | |
445 | return -EINVAL; | |
446 | } | |
447 | ||
d0ebf307 | 448 | strlcpy(format->name, "MJPEG", sizeof format->name); |
c0efd232 LP |
449 | format->fcc = V4L2_PIX_FMT_MJPEG; |
450 | format->flags = UVC_FMT_FLAG_COMPRESSED; | |
451 | format->bpp = 0; | |
b482d923 | 452 | ftype = UVC_VS_FRAME_MJPEG; |
c0efd232 LP |
453 | break; |
454 | ||
b482d923 | 455 | case UVC_VS_FORMAT_DV: |
c0efd232 | 456 | if (buflen < 9) { |
b2d9cc42 | 457 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
458 | "interface %d FORMAT error\n", |
459 | dev->udev->devnum, | |
460 | alts->desc.bInterfaceNumber); | |
461 | return -EINVAL; | |
462 | } | |
463 | ||
464 | switch (buffer[8] & 0x7f) { | |
465 | case 0: | |
d0ebf307 | 466 | strlcpy(format->name, "SD-DV", sizeof format->name); |
c0efd232 LP |
467 | break; |
468 | case 1: | |
d0ebf307 | 469 | strlcpy(format->name, "SDL-DV", sizeof format->name); |
c0efd232 LP |
470 | break; |
471 | case 2: | |
d0ebf307 | 472 | strlcpy(format->name, "HD-DV", sizeof format->name); |
c0efd232 LP |
473 | break; |
474 | default: | |
b2d9cc42 | 475 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
476 | "interface %d: unknown DV format %u\n", |
477 | dev->udev->devnum, | |
478 | alts->desc.bInterfaceNumber, buffer[8]); | |
479 | return -EINVAL; | |
480 | } | |
481 | ||
d0ebf307 | 482 | strlcat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz", |
c0efd232 LP |
483 | sizeof format->name); |
484 | ||
485 | format->fcc = V4L2_PIX_FMT_DV; | |
486 | format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; | |
487 | format->bpp = 0; | |
488 | ftype = 0; | |
489 | ||
490 | /* Create a dummy frame descriptor. */ | |
491 | frame = &format->frame[0]; | |
492 | memset(&format->frame[0], 0, sizeof format->frame[0]); | |
493 | frame->bFrameIntervalType = 1; | |
494 | frame->dwDefaultFrameInterval = 1; | |
495 | frame->dwFrameInterval = *intervals; | |
496 | *(*intervals)++ = 1; | |
497 | format->nframes = 1; | |
498 | break; | |
499 | ||
b482d923 LP |
500 | case UVC_VS_FORMAT_MPEG2TS: |
501 | case UVC_VS_FORMAT_STREAM_BASED: | |
c0efd232 LP |
502 | /* Not supported yet. */ |
503 | default: | |
b2d9cc42 | 504 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
505 | "interface %d unsupported format %u\n", |
506 | dev->udev->devnum, alts->desc.bInterfaceNumber, | |
507 | buffer[2]); | |
508 | return -EINVAL; | |
509 | } | |
510 | ||
511 | uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name); | |
512 | ||
513 | buflen -= buffer[0]; | |
514 | buffer += buffer[0]; | |
515 | ||
516 | /* Parse the frame descriptors. Only uncompressed, MJPEG and frame | |
517 | * based formats have frame descriptors. | |
518 | */ | |
c4ed8c66 LP |
519 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
520 | buffer[2] == ftype) { | |
078f8947 | 521 | frame = &format->frame[format->nframes]; |
b482d923 | 522 | if (ftype != UVC_VS_FRAME_FRAME_BASED) |
c0efd232 LP |
523 | n = buflen > 25 ? buffer[25] : 0; |
524 | else | |
525 | n = buflen > 21 ? buffer[21] : 0; | |
526 | ||
527 | n = n ? n : 3; | |
528 | ||
529 | if (buflen < 26 + 4*n) { | |
b2d9cc42 | 530 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
531 | "interface %d FRAME error\n", dev->udev->devnum, |
532 | alts->desc.bInterfaceNumber); | |
533 | return -EINVAL; | |
534 | } | |
535 | ||
536 | frame->bFrameIndex = buffer[3]; | |
537 | frame->bmCapabilities = buffer[4]; | |
e1b78a33 PZ |
538 | frame->wWidth = get_unaligned_le16(&buffer[5]) |
539 | * width_multiplier; | |
9bc6218d MH |
540 | frame->wHeight = get_unaligned_le16(&buffer[7]); |
541 | frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); | |
542 | frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); | |
b482d923 | 543 | if (ftype != UVC_VS_FRAME_FRAME_BASED) { |
c0efd232 | 544 | frame->dwMaxVideoFrameBufferSize = |
9bc6218d | 545 | get_unaligned_le32(&buffer[17]); |
c0efd232 | 546 | frame->dwDefaultFrameInterval = |
9bc6218d | 547 | get_unaligned_le32(&buffer[21]); |
c0efd232 LP |
548 | frame->bFrameIntervalType = buffer[25]; |
549 | } else { | |
550 | frame->dwMaxVideoFrameBufferSize = 0; | |
551 | frame->dwDefaultFrameInterval = | |
9bc6218d | 552 | get_unaligned_le32(&buffer[17]); |
c0efd232 LP |
553 | frame->bFrameIntervalType = buffer[21]; |
554 | } | |
555 | frame->dwFrameInterval = *intervals; | |
556 | ||
557 | /* Several UVC chipsets screw up dwMaxVideoFrameBufferSize | |
558 | * completely. Observed behaviours range from setting the | |
2c2d264b | 559 | * value to 1.1x the actual frame size to hardwiring the |
c0efd232 LP |
560 | * 16 low bits to 0. This results in a higher than necessary |
561 | * memory usage as well as a wrong image size information. For | |
562 | * uncompressed formats this can be fixed by computing the | |
563 | * value from the frame size. | |
564 | */ | |
565 | if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) | |
566 | frame->dwMaxVideoFrameBufferSize = format->bpp | |
567 | * frame->wWidth * frame->wHeight / 8; | |
568 | ||
569 | /* Some bogus devices report dwMinFrameInterval equal to | |
570 | * dwMaxFrameInterval and have dwFrameIntervalStep set to | |
571 | * zero. Setting all null intervals to 1 fixes the problem and | |
2c2d264b | 572 | * some other divisions by zero that could happen. |
c0efd232 LP |
573 | */ |
574 | for (i = 0; i < n; ++i) { | |
9bc6218d | 575 | interval = get_unaligned_le32(&buffer[26+4*i]); |
c0efd232 LP |
576 | *(*intervals)++ = interval ? interval : 1; |
577 | } | |
578 | ||
579 | /* Make sure that the default frame interval stays between | |
580 | * the boundaries. | |
581 | */ | |
582 | n -= frame->bFrameIntervalType ? 1 : 2; | |
583 | frame->dwDefaultFrameInterval = | |
584 | min(frame->dwFrameInterval[n], | |
585 | max(frame->dwFrameInterval[0], | |
586 | frame->dwDefaultFrameInterval)); | |
587 | ||
86d8b6ab LP |
588 | if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { |
589 | frame->bFrameIntervalType = 1; | |
590 | frame->dwFrameInterval[0] = | |
591 | frame->dwDefaultFrameInterval; | |
592 | } | |
593 | ||
c0efd232 LP |
594 | uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n", |
595 | frame->wWidth, frame->wHeight, | |
596 | 10000000/frame->dwDefaultFrameInterval, | |
597 | (100000000/frame->dwDefaultFrameInterval)%10); | |
598 | ||
078f8947 | 599 | format->nframes++; |
c0efd232 LP |
600 | buflen -= buffer[0]; |
601 | buffer += buffer[0]; | |
602 | } | |
603 | ||
c4ed8c66 LP |
604 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
605 | buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { | |
c0efd232 LP |
606 | buflen -= buffer[0]; |
607 | buffer += buffer[0]; | |
608 | } | |
609 | ||
c4ed8c66 LP |
610 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
611 | buffer[2] == UVC_VS_COLORFORMAT) { | |
c0efd232 | 612 | if (buflen < 6) { |
b2d9cc42 | 613 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
614 | "interface %d COLORFORMAT error\n", |
615 | dev->udev->devnum, | |
616 | alts->desc.bInterfaceNumber); | |
617 | return -EINVAL; | |
618 | } | |
619 | ||
620 | format->colorspace = uvc_colorspace(buffer[3]); | |
621 | ||
622 | buflen -= buffer[0]; | |
623 | buffer += buffer[0]; | |
624 | } | |
625 | ||
626 | return buffer - start; | |
627 | } | |
628 | ||
629 | static int uvc_parse_streaming(struct uvc_device *dev, | |
630 | struct usb_interface *intf) | |
631 | { | |
632 | struct uvc_streaming *streaming = NULL; | |
633 | struct uvc_format *format; | |
634 | struct uvc_frame *frame; | |
635 | struct usb_host_interface *alts = &intf->altsetting[0]; | |
636 | unsigned char *_buffer, *buffer = alts->extra; | |
637 | int _buflen, buflen = alts->extralen; | |
638 | unsigned int nformats = 0, nframes = 0, nintervals = 0; | |
639 | unsigned int size, i, n, p; | |
640 | __u32 *interval; | |
641 | __u16 psize; | |
642 | int ret = -EINVAL; | |
643 | ||
644 | if (intf->cur_altsetting->desc.bInterfaceSubClass | |
b482d923 | 645 | != UVC_SC_VIDEOSTREAMING) { |
c0efd232 LP |
646 | uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " |
647 | "video streaming interface\n", dev->udev->devnum, | |
648 | intf->altsetting[0].desc.bInterfaceNumber); | |
649 | return -EINVAL; | |
650 | } | |
651 | ||
652 | if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { | |
653 | uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already " | |
654 | "claimed\n", dev->udev->devnum, | |
655 | intf->altsetting[0].desc.bInterfaceNumber); | |
656 | return -EINVAL; | |
657 | } | |
658 | ||
659 | streaming = kzalloc(sizeof *streaming, GFP_KERNEL); | |
660 | if (streaming == NULL) { | |
661 | usb_driver_release_interface(&uvc_driver.driver, intf); | |
662 | return -EINVAL; | |
663 | } | |
664 | ||
665 | mutex_init(&streaming->mutex); | |
35f02a68 | 666 | streaming->dev = dev; |
c0efd232 LP |
667 | streaming->intf = usb_get_intf(intf); |
668 | streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
669 | ||
670 | /* The Pico iMage webcam has its class-specific interface descriptors | |
671 | * after the endpoint descriptors. | |
672 | */ | |
673 | if (buflen == 0) { | |
674 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { | |
675 | struct usb_host_endpoint *ep = &alts->endpoint[i]; | |
676 | ||
677 | if (ep->extralen == 0) | |
678 | continue; | |
679 | ||
680 | if (ep->extralen > 2 && | |
681 | ep->extra[1] == USB_DT_CS_INTERFACE) { | |
682 | uvc_trace(UVC_TRACE_DESCR, "trying extra data " | |
683 | "from endpoint %u.\n", i); | |
684 | buffer = alts->endpoint[i].extra; | |
685 | buflen = alts->endpoint[i].extralen; | |
686 | break; | |
687 | } | |
688 | } | |
689 | } | |
690 | ||
691 | /* Skip the standard interface descriptors. */ | |
692 | while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { | |
693 | buflen -= buffer[0]; | |
694 | buffer += buffer[0]; | |
695 | } | |
696 | ||
697 | if (buflen <= 2) { | |
698 | uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming " | |
699 | "interface descriptors found.\n"); | |
700 | goto error; | |
701 | } | |
702 | ||
703 | /* Parse the header descriptor. */ | |
ff924203 | 704 | switch (buffer[2]) { |
b482d923 | 705 | case UVC_VS_OUTPUT_HEADER: |
ff924203 LP |
706 | streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
707 | size = 9; | |
708 | break; | |
709 | ||
b482d923 | 710 | case UVC_VS_INPUT_HEADER: |
ff924203 LP |
711 | streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
712 | size = 13; | |
713 | break; | |
714 | ||
715 | default: | |
c0efd232 | 716 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " |
ff924203 LP |
717 | "%d HEADER descriptor not found.\n", dev->udev->devnum, |
718 | alts->desc.bInterfaceNumber); | |
c0efd232 | 719 | goto error; |
ff924203 | 720 | } |
c0efd232 | 721 | |
ff924203 LP |
722 | p = buflen >= 4 ? buffer[3] : 0; |
723 | n = buflen >= size ? buffer[size-1] : 0; | |
724 | ||
725 | if (buflen < size + p*n) { | |
726 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " | |
727 | "interface %d HEADER descriptor is invalid.\n", | |
728 | dev->udev->devnum, alts->desc.bInterfaceNumber); | |
729 | goto error; | |
730 | } | |
c0efd232 | 731 | |
ff924203 LP |
732 | streaming->header.bNumFormats = p; |
733 | streaming->header.bEndpointAddress = buffer[6]; | |
b482d923 | 734 | if (buffer[2] == UVC_VS_INPUT_HEADER) { |
c0efd232 LP |
735 | streaming->header.bmInfo = buffer[7]; |
736 | streaming->header.bTerminalLink = buffer[8]; | |
737 | streaming->header.bStillCaptureMethod = buffer[9]; | |
738 | streaming->header.bTriggerSupport = buffer[10]; | |
739 | streaming->header.bTriggerUsage = buffer[11]; | |
c0efd232 | 740 | } else { |
ff924203 LP |
741 | streaming->header.bTerminalLink = buffer[7]; |
742 | } | |
743 | streaming->header.bControlSize = n; | |
744 | ||
0b21d55f JL |
745 | streaming->header.bmaControls = kmemdup(&buffer[size], p * n, |
746 | GFP_KERNEL); | |
ff924203 LP |
747 | if (streaming->header.bmaControls == NULL) { |
748 | ret = -ENOMEM; | |
c0efd232 LP |
749 | goto error; |
750 | } | |
751 | ||
752 | buflen -= buffer[0]; | |
753 | buffer += buffer[0]; | |
754 | ||
755 | _buffer = buffer; | |
756 | _buflen = buflen; | |
757 | ||
758 | /* Count the format and frame descriptors. */ | |
042e143e | 759 | while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { |
c0efd232 | 760 | switch (_buffer[2]) { |
b482d923 LP |
761 | case UVC_VS_FORMAT_UNCOMPRESSED: |
762 | case UVC_VS_FORMAT_MJPEG: | |
763 | case UVC_VS_FORMAT_FRAME_BASED: | |
c0efd232 LP |
764 | nformats++; |
765 | break; | |
766 | ||
b482d923 | 767 | case UVC_VS_FORMAT_DV: |
c0efd232 LP |
768 | /* DV format has no frame descriptor. We will create a |
769 | * dummy frame descriptor with a dummy frame interval. | |
770 | */ | |
771 | nformats++; | |
772 | nframes++; | |
773 | nintervals++; | |
774 | break; | |
775 | ||
b482d923 LP |
776 | case UVC_VS_FORMAT_MPEG2TS: |
777 | case UVC_VS_FORMAT_STREAM_BASED: | |
c0efd232 LP |
778 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
779 | "interface %d FORMAT %u is not supported.\n", | |
780 | dev->udev->devnum, | |
781 | alts->desc.bInterfaceNumber, _buffer[2]); | |
782 | break; | |
783 | ||
b482d923 LP |
784 | case UVC_VS_FRAME_UNCOMPRESSED: |
785 | case UVC_VS_FRAME_MJPEG: | |
c0efd232 LP |
786 | nframes++; |
787 | if (_buflen > 25) | |
788 | nintervals += _buffer[25] ? _buffer[25] : 3; | |
789 | break; | |
790 | ||
b482d923 | 791 | case UVC_VS_FRAME_FRAME_BASED: |
c0efd232 LP |
792 | nframes++; |
793 | if (_buflen > 21) | |
794 | nintervals += _buffer[21] ? _buffer[21] : 3; | |
795 | break; | |
796 | } | |
797 | ||
798 | _buflen -= _buffer[0]; | |
799 | _buffer += _buffer[0]; | |
800 | } | |
801 | ||
802 | if (nformats == 0) { | |
803 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " | |
804 | "%d has no supported formats defined.\n", | |
805 | dev->udev->devnum, alts->desc.bInterfaceNumber); | |
806 | goto error; | |
807 | } | |
808 | ||
809 | size = nformats * sizeof *format + nframes * sizeof *frame | |
810 | + nintervals * sizeof *interval; | |
811 | format = kzalloc(size, GFP_KERNEL); | |
812 | if (format == NULL) { | |
813 | ret = -ENOMEM; | |
814 | goto error; | |
815 | } | |
816 | ||
817 | frame = (struct uvc_frame *)&format[nformats]; | |
818 | interval = (__u32 *)&frame[nframes]; | |
819 | ||
820 | streaming->format = format; | |
821 | streaming->nformats = nformats; | |
822 | ||
823 | /* Parse the format descriptors. */ | |
042e143e | 824 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { |
c0efd232 | 825 | switch (buffer[2]) { |
b482d923 LP |
826 | case UVC_VS_FORMAT_UNCOMPRESSED: |
827 | case UVC_VS_FORMAT_MJPEG: | |
828 | case UVC_VS_FORMAT_DV: | |
829 | case UVC_VS_FORMAT_FRAME_BASED: | |
c0efd232 LP |
830 | format->frame = frame; |
831 | ret = uvc_parse_format(dev, streaming, format, | |
832 | &interval, buffer, buflen); | |
833 | if (ret < 0) | |
834 | goto error; | |
835 | ||
836 | frame += format->nframes; | |
837 | format++; | |
838 | ||
839 | buflen -= ret; | |
840 | buffer += ret; | |
841 | continue; | |
842 | ||
843 | default: | |
844 | break; | |
845 | } | |
846 | ||
847 | buflen -= buffer[0]; | |
848 | buffer += buffer[0]; | |
849 | } | |
850 | ||
c4ed8c66 LP |
851 | if (buflen) |
852 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " | |
853 | "%d has %u bytes of trailing descriptor garbage.\n", | |
854 | dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); | |
855 | ||
c0efd232 LP |
856 | /* Parse the alternate settings to find the maximum bandwidth. */ |
857 | for (i = 0; i < intf->num_altsetting; ++i) { | |
858 | struct usb_host_endpoint *ep; | |
859 | alts = &intf->altsetting[i]; | |
860 | ep = uvc_find_endpoint(alts, | |
861 | streaming->header.bEndpointAddress); | |
862 | if (ep == NULL) | |
863 | continue; | |
864 | ||
865 | psize = le16_to_cpu(ep->desc.wMaxPacketSize); | |
866 | psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); | |
867 | if (psize > streaming->maxpsize) | |
868 | streaming->maxpsize = psize; | |
869 | } | |
870 | ||
35f02a68 | 871 | list_add_tail(&streaming->list, &dev->streams); |
c0efd232 LP |
872 | return 0; |
873 | ||
874 | error: | |
875 | usb_driver_release_interface(&uvc_driver.driver, intf); | |
876 | usb_put_intf(intf); | |
877 | kfree(streaming->format); | |
878 | kfree(streaming->header.bmaControls); | |
879 | kfree(streaming); | |
880 | return ret; | |
881 | } | |
882 | ||
8ca5a639 LP |
883 | static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, |
884 | unsigned int num_pads, unsigned int extra_size) | |
885 | { | |
886 | struct uvc_entity *entity; | |
887 | unsigned int num_inputs; | |
888 | unsigned int size; | |
4ffc2d89 | 889 | unsigned int i; |
8ca5a639 | 890 | |
4ffc2d89 | 891 | extra_size = ALIGN(extra_size, sizeof(*entity->pads)); |
8ca5a639 | 892 | num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; |
4ffc2d89 LP |
893 | size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads |
894 | + num_inputs; | |
8ca5a639 LP |
895 | entity = kzalloc(size, GFP_KERNEL); |
896 | if (entity == NULL) | |
897 | return NULL; | |
898 | ||
899 | entity->id = id; | |
900 | entity->type = type; | |
901 | ||
4ffc2d89 LP |
902 | entity->num_links = 0; |
903 | entity->num_pads = num_pads; | |
904 | entity->pads = ((void *)(entity + 1)) + extra_size; | |
905 | ||
906 | for (i = 0; i < num_inputs; ++i) | |
907 | entity->pads[i].flags = MEDIA_PAD_FL_SINK; | |
908 | if (!UVC_ENTITY_IS_OTERM(entity)) | |
909 | entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; | |
910 | ||
8ca5a639 | 911 | entity->bNrInPins = num_inputs; |
4ffc2d89 | 912 | entity->baSourceID = (__u8 *)(&entity->pads[num_pads]); |
8ca5a639 LP |
913 | |
914 | return entity; | |
915 | } | |
916 | ||
c0efd232 LP |
917 | /* Parse vendor-specific extensions. */ |
918 | static int uvc_parse_vendor_control(struct uvc_device *dev, | |
919 | const unsigned char *buffer, int buflen) | |
920 | { | |
921 | struct usb_device *udev = dev->udev; | |
922 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
923 | struct uvc_entity *unit; | |
924 | unsigned int n, p; | |
925 | int handled = 0; | |
926 | ||
927 | switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { | |
928 | case 0x046d: /* Logitech */ | |
929 | if (buffer[1] != 0x41 || buffer[2] != 0x01) | |
930 | break; | |
931 | ||
932 | /* Logitech implements several vendor specific functions | |
933 | * through vendor specific extension units (LXU). | |
934 | * | |
935 | * The LXU descriptors are similar to XU descriptors | |
936 | * (see "USB Device Video Class for Video Devices", section | |
937 | * 3.7.2.6 "Extension Unit Descriptor") with the following | |
938 | * differences: | |
939 | * | |
940 | * ---------------------------------------------------------- | |
941 | * 0 bLength 1 Number | |
942 | * Size of this descriptor, in bytes: 24+p+n*2 | |
943 | * ---------------------------------------------------------- | |
944 | * 23+p+n bmControlsType N Bitmap | |
945 | * Individual bits in the set are defined: | |
946 | * 0: Absolute | |
947 | * 1: Relative | |
948 | * | |
949 | * This bitset is mapped exactly the same as bmControls. | |
950 | * ---------------------------------------------------------- | |
951 | * 23+p+n*2 bReserved 1 Boolean | |
952 | * ---------------------------------------------------------- | |
953 | * 24+p+n*2 iExtension 1 Index | |
954 | * Index of a string descriptor that describes this | |
955 | * extension unit. | |
956 | * ---------------------------------------------------------- | |
957 | */ | |
958 | p = buflen >= 22 ? buffer[21] : 0; | |
959 | n = buflen >= 25 + p ? buffer[22+p] : 0; | |
960 | ||
961 | if (buflen < 25 + p + 2*n) { | |
962 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
963 | "interface %d EXTENSION_UNIT error\n", | |
964 | udev->devnum, alts->desc.bInterfaceNumber); | |
965 | break; | |
966 | } | |
967 | ||
8ca5a639 LP |
968 | unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3], |
969 | p + 1, 2*n); | |
c0efd232 LP |
970 | if (unit == NULL) |
971 | return -ENOMEM; | |
972 | ||
c0efd232 LP |
973 | memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); |
974 | unit->extension.bNumControls = buffer[20]; | |
8ca5a639 | 975 | memcpy(unit->baSourceID, &buffer[22], p); |
c0efd232 | 976 | unit->extension.bControlSize = buffer[22+p]; |
8ca5a639 LP |
977 | unit->extension.bmControls = (__u8 *)unit + sizeof(*unit); |
978 | unit->extension.bmControlsType = (__u8 *)unit + sizeof(*unit) | |
979 | + n; | |
c0efd232 LP |
980 | memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); |
981 | ||
982 | if (buffer[24+p+2*n] != 0) | |
983 | usb_string(udev, buffer[24+p+2*n], unit->name, | |
984 | sizeof unit->name); | |
985 | else | |
986 | sprintf(unit->name, "Extension %u", buffer[3]); | |
987 | ||
988 | list_add_tail(&unit->list, &dev->entities); | |
989 | handled = 1; | |
990 | break; | |
991 | } | |
992 | ||
993 | return handled; | |
994 | } | |
995 | ||
996 | static int uvc_parse_standard_control(struct uvc_device *dev, | |
997 | const unsigned char *buffer, int buflen) | |
998 | { | |
999 | struct usb_device *udev = dev->udev; | |
1000 | struct uvc_entity *unit, *term; | |
1001 | struct usb_interface *intf; | |
1002 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
1003 | unsigned int i, n, p, len; | |
1004 | __u16 type; | |
1005 | ||
1006 | switch (buffer[2]) { | |
b482d923 | 1007 | case UVC_VC_HEADER: |
c0efd232 LP |
1008 | n = buflen >= 12 ? buffer[11] : 0; |
1009 | ||
daf41ac2 | 1010 | if (buflen < 12 + n) { |
c0efd232 LP |
1011 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " |
1012 | "interface %d HEADER error\n", udev->devnum, | |
1013 | alts->desc.bInterfaceNumber); | |
1014 | return -EINVAL; | |
1015 | } | |
1016 | ||
9bc6218d MH |
1017 | dev->uvc_version = get_unaligned_le16(&buffer[3]); |
1018 | dev->clock_frequency = get_unaligned_le32(&buffer[7]); | |
c0efd232 LP |
1019 | |
1020 | /* Parse all USB Video Streaming interfaces. */ | |
1021 | for (i = 0; i < n; ++i) { | |
1022 | intf = usb_ifnum_to_if(udev, buffer[12+i]); | |
1023 | if (intf == NULL) { | |
1024 | uvc_trace(UVC_TRACE_DESCR, "device %d " | |
1025 | "interface %d doesn't exists\n", | |
1026 | udev->devnum, i); | |
1027 | continue; | |
1028 | } | |
1029 | ||
1030 | uvc_parse_streaming(dev, intf); | |
1031 | } | |
1032 | break; | |
1033 | ||
b482d923 | 1034 | case UVC_VC_INPUT_TERMINAL: |
c0efd232 LP |
1035 | if (buflen < 8) { |
1036 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1037 | "interface %d INPUT_TERMINAL error\n", | |
1038 | udev->devnum, alts->desc.bInterfaceNumber); | |
1039 | return -EINVAL; | |
1040 | } | |
1041 | ||
1042 | /* Make sure the terminal type MSB is not null, otherwise it | |
1043 | * could be confused with a unit. | |
1044 | */ | |
9bc6218d | 1045 | type = get_unaligned_le16(&buffer[4]); |
c0efd232 LP |
1046 | if ((type & 0xff00) == 0) { |
1047 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1048 | "interface %d INPUT_TERMINAL %d has invalid " | |
1049 | "type 0x%04x, skipping\n", udev->devnum, | |
1050 | alts->desc.bInterfaceNumber, | |
1051 | buffer[3], type); | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | n = 0; | |
1056 | p = 0; | |
1057 | len = 8; | |
1058 | ||
b482d923 | 1059 | if (type == UVC_ITT_CAMERA) { |
c0efd232 LP |
1060 | n = buflen >= 15 ? buffer[14] : 0; |
1061 | len = 15; | |
1062 | ||
b482d923 | 1063 | } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
c0efd232 LP |
1064 | n = buflen >= 9 ? buffer[8] : 0; |
1065 | p = buflen >= 10 + n ? buffer[9+n] : 0; | |
1066 | len = 10; | |
1067 | } | |
1068 | ||
1069 | if (buflen < len + n + p) { | |
1070 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1071 | "interface %d INPUT_TERMINAL error\n", | |
1072 | udev->devnum, alts->desc.bInterfaceNumber); | |
1073 | return -EINVAL; | |
1074 | } | |
1075 | ||
8ca5a639 LP |
1076 | term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3], |
1077 | 1, n + p); | |
c0efd232 LP |
1078 | if (term == NULL) |
1079 | return -ENOMEM; | |
1080 | ||
b482d923 | 1081 | if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { |
c0efd232 LP |
1082 | term->camera.bControlSize = n; |
1083 | term->camera.bmControls = (__u8 *)term + sizeof *term; | |
1084 | term->camera.wObjectiveFocalLengthMin = | |
9bc6218d | 1085 | get_unaligned_le16(&buffer[8]); |
c0efd232 | 1086 | term->camera.wObjectiveFocalLengthMax = |
9bc6218d | 1087 | get_unaligned_le16(&buffer[10]); |
c0efd232 | 1088 | term->camera.wOcularFocalLength = |
9bc6218d | 1089 | get_unaligned_le16(&buffer[12]); |
c0efd232 | 1090 | memcpy(term->camera.bmControls, &buffer[15], n); |
b482d923 LP |
1091 | } else if (UVC_ENTITY_TYPE(term) == |
1092 | UVC_ITT_MEDIA_TRANSPORT_INPUT) { | |
c0efd232 LP |
1093 | term->media.bControlSize = n; |
1094 | term->media.bmControls = (__u8 *)term + sizeof *term; | |
1095 | term->media.bTransportModeSize = p; | |
1096 | term->media.bmTransportModes = (__u8 *)term | |
1097 | + sizeof *term + n; | |
1098 | memcpy(term->media.bmControls, &buffer[9], n); | |
1099 | memcpy(term->media.bmTransportModes, &buffer[10+n], p); | |
1100 | } | |
1101 | ||
1102 | if (buffer[7] != 0) | |
1103 | usb_string(udev, buffer[7], term->name, | |
1104 | sizeof term->name); | |
b482d923 | 1105 | else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) |
c0efd232 | 1106 | sprintf(term->name, "Camera %u", buffer[3]); |
b482d923 | 1107 | else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) |
c0efd232 LP |
1108 | sprintf(term->name, "Media %u", buffer[3]); |
1109 | else | |
1110 | sprintf(term->name, "Input %u", buffer[3]); | |
1111 | ||
1112 | list_add_tail(&term->list, &dev->entities); | |
1113 | break; | |
1114 | ||
b482d923 | 1115 | case UVC_VC_OUTPUT_TERMINAL: |
c0efd232 LP |
1116 | if (buflen < 9) { |
1117 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1118 | "interface %d OUTPUT_TERMINAL error\n", | |
1119 | udev->devnum, alts->desc.bInterfaceNumber); | |
1120 | return -EINVAL; | |
1121 | } | |
1122 | ||
1123 | /* Make sure the terminal type MSB is not null, otherwise it | |
1124 | * could be confused with a unit. | |
1125 | */ | |
9bc6218d | 1126 | type = get_unaligned_le16(&buffer[4]); |
c0efd232 LP |
1127 | if ((type & 0xff00) == 0) { |
1128 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1129 | "interface %d OUTPUT_TERMINAL %d has invalid " | |
1130 | "type 0x%04x, skipping\n", udev->devnum, | |
1131 | alts->desc.bInterfaceNumber, buffer[3], type); | |
1132 | return 0; | |
1133 | } | |
1134 | ||
8ca5a639 LP |
1135 | term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3], |
1136 | 1, 0); | |
c0efd232 LP |
1137 | if (term == NULL) |
1138 | return -ENOMEM; | |
1139 | ||
8ca5a639 | 1140 | memcpy(term->baSourceID, &buffer[7], 1); |
c0efd232 LP |
1141 | |
1142 | if (buffer[8] != 0) | |
1143 | usb_string(udev, buffer[8], term->name, | |
1144 | sizeof term->name); | |
1145 | else | |
1146 | sprintf(term->name, "Output %u", buffer[3]); | |
1147 | ||
1148 | list_add_tail(&term->list, &dev->entities); | |
1149 | break; | |
1150 | ||
b482d923 | 1151 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 LP |
1152 | p = buflen >= 5 ? buffer[4] : 0; |
1153 | ||
1154 | if (buflen < 5 || buflen < 6 + p) { | |
1155 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1156 | "interface %d SELECTOR_UNIT error\n", | |
1157 | udev->devnum, alts->desc.bInterfaceNumber); | |
1158 | return -EINVAL; | |
1159 | } | |
1160 | ||
8ca5a639 | 1161 | unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0); |
c0efd232 LP |
1162 | if (unit == NULL) |
1163 | return -ENOMEM; | |
1164 | ||
8ca5a639 | 1165 | memcpy(unit->baSourceID, &buffer[5], p); |
c0efd232 LP |
1166 | |
1167 | if (buffer[5+p] != 0) | |
1168 | usb_string(udev, buffer[5+p], unit->name, | |
1169 | sizeof unit->name); | |
1170 | else | |
1171 | sprintf(unit->name, "Selector %u", buffer[3]); | |
1172 | ||
1173 | list_add_tail(&unit->list, &dev->entities); | |
1174 | break; | |
1175 | ||
b482d923 | 1176 | case UVC_VC_PROCESSING_UNIT: |
c0efd232 LP |
1177 | n = buflen >= 8 ? buffer[7] : 0; |
1178 | p = dev->uvc_version >= 0x0110 ? 10 : 9; | |
1179 | ||
1180 | if (buflen < p + n) { | |
1181 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1182 | "interface %d PROCESSING_UNIT error\n", | |
1183 | udev->devnum, alts->desc.bInterfaceNumber); | |
1184 | return -EINVAL; | |
1185 | } | |
1186 | ||
8ca5a639 | 1187 | unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n); |
c0efd232 LP |
1188 | if (unit == NULL) |
1189 | return -ENOMEM; | |
1190 | ||
8ca5a639 | 1191 | memcpy(unit->baSourceID, &buffer[4], 1); |
c0efd232 | 1192 | unit->processing.wMaxMultiplier = |
9bc6218d | 1193 | get_unaligned_le16(&buffer[5]); |
c0efd232 LP |
1194 | unit->processing.bControlSize = buffer[7]; |
1195 | unit->processing.bmControls = (__u8 *)unit + sizeof *unit; | |
1196 | memcpy(unit->processing.bmControls, &buffer[8], n); | |
1197 | if (dev->uvc_version >= 0x0110) | |
1198 | unit->processing.bmVideoStandards = buffer[9+n]; | |
1199 | ||
1200 | if (buffer[8+n] != 0) | |
1201 | usb_string(udev, buffer[8+n], unit->name, | |
1202 | sizeof unit->name); | |
1203 | else | |
1204 | sprintf(unit->name, "Processing %u", buffer[3]); | |
1205 | ||
1206 | list_add_tail(&unit->list, &dev->entities); | |
1207 | break; | |
1208 | ||
b482d923 | 1209 | case UVC_VC_EXTENSION_UNIT: |
c0efd232 LP |
1210 | p = buflen >= 22 ? buffer[21] : 0; |
1211 | n = buflen >= 24 + p ? buffer[22+p] : 0; | |
1212 | ||
1213 | if (buflen < 24 + p + n) { | |
1214 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1215 | "interface %d EXTENSION_UNIT error\n", | |
1216 | udev->devnum, alts->desc.bInterfaceNumber); | |
1217 | return -EINVAL; | |
1218 | } | |
1219 | ||
8ca5a639 | 1220 | unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n); |
c0efd232 LP |
1221 | if (unit == NULL) |
1222 | return -ENOMEM; | |
1223 | ||
c0efd232 LP |
1224 | memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); |
1225 | unit->extension.bNumControls = buffer[20]; | |
8ca5a639 | 1226 | memcpy(unit->baSourceID, &buffer[22], p); |
c0efd232 | 1227 | unit->extension.bControlSize = buffer[22+p]; |
8ca5a639 | 1228 | unit->extension.bmControls = (__u8 *)unit + sizeof *unit; |
c0efd232 LP |
1229 | memcpy(unit->extension.bmControls, &buffer[23+p], n); |
1230 | ||
1231 | if (buffer[23+p+n] != 0) | |
1232 | usb_string(udev, buffer[23+p+n], unit->name, | |
1233 | sizeof unit->name); | |
1234 | else | |
1235 | sprintf(unit->name, "Extension %u", buffer[3]); | |
1236 | ||
1237 | list_add_tail(&unit->list, &dev->entities); | |
1238 | break; | |
1239 | ||
1240 | default: | |
1241 | uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE " | |
1242 | "descriptor (%u)\n", buffer[2]); | |
1243 | break; | |
1244 | } | |
1245 | ||
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | static int uvc_parse_control(struct uvc_device *dev) | |
1250 | { | |
1251 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
1252 | unsigned char *buffer = alts->extra; | |
1253 | int buflen = alts->extralen; | |
1254 | int ret; | |
1255 | ||
1256 | /* Parse the default alternate setting only, as the UVC specification | |
1257 | * defines a single alternate setting, the default alternate setting | |
1258 | * zero. | |
1259 | */ | |
1260 | ||
1261 | while (buflen > 2) { | |
1262 | if (uvc_parse_vendor_control(dev, buffer, buflen) || | |
1263 | buffer[1] != USB_DT_CS_INTERFACE) | |
1264 | goto next_descriptor; | |
1265 | ||
1266 | if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0) | |
1267 | return ret; | |
1268 | ||
1269 | next_descriptor: | |
1270 | buflen -= buffer[0]; | |
1271 | buffer += buffer[0]; | |
1272 | } | |
1273 | ||
538e7a00 LP |
1274 | /* Check if the optional status endpoint is present. Built-in iSight |
1275 | * webcams have an interrupt endpoint but spit proprietary data that | |
1276 | * don't conform to the UVC status endpoint messages. Don't try to | |
1277 | * handle the interrupt endpoint for those cameras. | |
1278 | */ | |
1279 | if (alts->desc.bNumEndpoints == 1 && | |
1280 | !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) { | |
c0efd232 LP |
1281 | struct usb_host_endpoint *ep = &alts->endpoint[0]; |
1282 | struct usb_endpoint_descriptor *desc = &ep->desc; | |
1283 | ||
1284 | if (usb_endpoint_is_int_in(desc) && | |
1285 | le16_to_cpu(desc->wMaxPacketSize) >= 8 && | |
1286 | desc->bInterval != 0) { | |
1287 | uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint " | |
1288 | "(addr %02x).\n", desc->bEndpointAddress); | |
1289 | dev->int_ep = ep; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | /* ------------------------------------------------------------------------ | |
8e113595 | 1297 | * UVC device scan |
c0efd232 LP |
1298 | */ |
1299 | ||
c0efd232 LP |
1300 | /* |
1301 | * Scan the UVC descriptors to locate a chain starting at an Output Terminal | |
1302 | * and containing the following units: | |
1303 | * | |
8e113595 | 1304 | * - one or more Output Terminals (USB Streaming or Display) |
c0efd232 | 1305 | * - zero or one Processing Unit |
8e113595 | 1306 | * - zero, one or more single-input Selector Units |
c0efd232 LP |
1307 | * - zero or one multiple-input Selector Units, provided all inputs are |
1308 | * connected to input terminals | |
1309 | * - zero, one or mode single-input Extension Units | |
2c2d264b | 1310 | * - one or more Input Terminals (Camera, External or USB Streaming) |
c0efd232 | 1311 | * |
8e113595 LP |
1312 | * The terminal and units must match on of the following structures: |
1313 | * | |
1314 | * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) | |
1315 | * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... | |
1316 | * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) | |
1317 | * | |
1318 | * +---------+ +---------+ -> OTT_*(0) | |
1319 | * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... | |
1320 | * +---------+ +---------+ -> OTT_*(n) | |
1321 | * | |
1322 | * The Processing Unit and Extension Units can be in any order. Additional | |
1323 | * Extension Units connected to the main chain as single-unit branches are | |
1324 | * also supported. Single-input Selector Units are ignored. | |
c0efd232 | 1325 | */ |
8e113595 | 1326 | static int uvc_scan_chain_entity(struct uvc_video_chain *chain, |
c0efd232 LP |
1327 | struct uvc_entity *entity) |
1328 | { | |
1329 | switch (UVC_ENTITY_TYPE(entity)) { | |
b482d923 | 1330 | case UVC_VC_EXTENSION_UNIT: |
c0efd232 | 1331 | if (uvc_trace_param & UVC_TRACE_PROBE) |
69396c4e | 1332 | printk(KERN_CONT " <- XU %d", entity->id); |
c0efd232 | 1333 | |
8ca5a639 | 1334 | if (entity->bNrInPins != 1) { |
c0efd232 LP |
1335 | uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more " |
1336 | "than 1 input pin.\n", entity->id); | |
1337 | return -1; | |
1338 | } | |
1339 | ||
c0efd232 LP |
1340 | break; |
1341 | ||
b482d923 | 1342 | case UVC_VC_PROCESSING_UNIT: |
c0efd232 | 1343 | if (uvc_trace_param & UVC_TRACE_PROBE) |
69396c4e | 1344 | printk(KERN_CONT " <- PU %d", entity->id); |
c0efd232 | 1345 | |
8e113595 | 1346 | if (chain->processing != NULL) { |
c0efd232 LP |
1347 | uvc_trace(UVC_TRACE_DESCR, "Found multiple " |
1348 | "Processing Units in chain.\n"); | |
1349 | return -1; | |
1350 | } | |
1351 | ||
8e113595 | 1352 | chain->processing = entity; |
c0efd232 LP |
1353 | break; |
1354 | ||
b482d923 | 1355 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 | 1356 | if (uvc_trace_param & UVC_TRACE_PROBE) |
69396c4e | 1357 | printk(KERN_CONT " <- SU %d", entity->id); |
c0efd232 LP |
1358 | |
1359 | /* Single-input selector units are ignored. */ | |
8ca5a639 | 1360 | if (entity->bNrInPins == 1) |
c0efd232 LP |
1361 | break; |
1362 | ||
8e113595 | 1363 | if (chain->selector != NULL) { |
c0efd232 LP |
1364 | uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " |
1365 | "Units in chain.\n"); | |
1366 | return -1; | |
1367 | } | |
1368 | ||
8e113595 | 1369 | chain->selector = entity; |
c0efd232 LP |
1370 | break; |
1371 | ||
b482d923 LP |
1372 | case UVC_ITT_VENDOR_SPECIFIC: |
1373 | case UVC_ITT_CAMERA: | |
1374 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: | |
c0efd232 | 1375 | if (uvc_trace_param & UVC_TRACE_PROBE) |
69396c4e | 1376 | printk(KERN_CONT " <- IT %d\n", entity->id); |
c0efd232 | 1377 | |
c0efd232 LP |
1378 | break; |
1379 | ||
4093a5c4 LP |
1380 | case UVC_OTT_VENDOR_SPECIFIC: |
1381 | case UVC_OTT_DISPLAY: | |
1382 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1383 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1384 | printk(KERN_CONT " OT %d", entity->id); |
4093a5c4 LP |
1385 | |
1386 | break; | |
1387 | ||
b482d923 | 1388 | case UVC_TT_STREAMING: |
4057ac6c LP |
1389 | if (UVC_ENTITY_IS_ITERM(entity)) { |
1390 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1391 | printk(KERN_CONT " <- IT %d\n", entity->id); |
4057ac6c LP |
1392 | } else { |
1393 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1394 | printk(KERN_CONT " OT %d", entity->id); |
ff924203 LP |
1395 | } |
1396 | ||
ff924203 LP |
1397 | break; |
1398 | ||
c0efd232 LP |
1399 | default: |
1400 | uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type " | |
1401 | "0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity)); | |
1402 | return -1; | |
1403 | } | |
1404 | ||
6241d8ca | 1405 | list_add_tail(&entity->chain, &chain->entities); |
c0efd232 LP |
1406 | return 0; |
1407 | } | |
1408 | ||
8e113595 | 1409 | static int uvc_scan_chain_forward(struct uvc_video_chain *chain, |
c0efd232 LP |
1410 | struct uvc_entity *entity, struct uvc_entity *prev) |
1411 | { | |
1412 | struct uvc_entity *forward; | |
1413 | int found; | |
1414 | ||
1415 | /* Forward scan */ | |
1416 | forward = NULL; | |
1417 | found = 0; | |
1418 | ||
1419 | while (1) { | |
8e113595 | 1420 | forward = uvc_entity_by_reference(chain->dev, entity->id, |
c0efd232 LP |
1421 | forward); |
1422 | if (forward == NULL) | |
1423 | break; | |
8e113595 | 1424 | if (forward == prev) |
c0efd232 LP |
1425 | continue; |
1426 | ||
8e113595 LP |
1427 | switch (UVC_ENTITY_TYPE(forward)) { |
1428 | case UVC_VC_EXTENSION_UNIT: | |
8ca5a639 | 1429 | if (forward->bNrInPins != 1) { |
8e113595 LP |
1430 | uvc_trace(UVC_TRACE_DESCR, "Extension unit %d " |
1431 | "has more than 1 input pin.\n", | |
1432 | entity->id); | |
1433 | return -EINVAL; | |
1434 | } | |
c0efd232 | 1435 | |
6241d8ca | 1436 | list_add_tail(&forward->chain, &chain->entities); |
8e113595 LP |
1437 | if (uvc_trace_param & UVC_TRACE_PROBE) { |
1438 | if (!found) | |
69396c4e | 1439 | printk(KERN_CONT " (->"); |
8e113595 | 1440 | |
69396c4e | 1441 | printk(KERN_CONT " XU %d", forward->id); |
8e113595 LP |
1442 | found = 1; |
1443 | } | |
1444 | break; | |
1445 | ||
1446 | case UVC_OTT_VENDOR_SPECIFIC: | |
1447 | case UVC_OTT_DISPLAY: | |
1448 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1449 | case UVC_TT_STREAMING: | |
1450 | if (UVC_ENTITY_IS_ITERM(forward)) { | |
1451 | uvc_trace(UVC_TRACE_DESCR, "Unsupported input " | |
1452 | "terminal %u.\n", forward->id); | |
1453 | return -EINVAL; | |
1454 | } | |
c0efd232 | 1455 | |
6241d8ca | 1456 | list_add_tail(&forward->chain, &chain->entities); |
8e113595 LP |
1457 | if (uvc_trace_param & UVC_TRACE_PROBE) { |
1458 | if (!found) | |
69396c4e | 1459 | printk(KERN_CONT " (->"); |
8e113595 | 1460 | |
69396c4e | 1461 | printk(KERN_CONT " OT %d", forward->id); |
8e113595 LP |
1462 | found = 1; |
1463 | } | |
1464 | break; | |
c0efd232 LP |
1465 | } |
1466 | } | |
1467 | if (found) | |
69396c4e | 1468 | printk(KERN_CONT ")"); |
c0efd232 LP |
1469 | |
1470 | return 0; | |
1471 | } | |
1472 | ||
8e113595 | 1473 | static int uvc_scan_chain_backward(struct uvc_video_chain *chain, |
4057ac6c | 1474 | struct uvc_entity **_entity) |
c0efd232 | 1475 | { |
4057ac6c | 1476 | struct uvc_entity *entity = *_entity; |
c0efd232 | 1477 | struct uvc_entity *term; |
4057ac6c | 1478 | int id = -EINVAL, i; |
c0efd232 LP |
1479 | |
1480 | switch (UVC_ENTITY_TYPE(entity)) { | |
b482d923 | 1481 | case UVC_VC_EXTENSION_UNIT: |
b482d923 | 1482 | case UVC_VC_PROCESSING_UNIT: |
8ca5a639 | 1483 | id = entity->baSourceID[0]; |
c0efd232 LP |
1484 | break; |
1485 | ||
b482d923 | 1486 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 | 1487 | /* Single-input selector units are ignored. */ |
8ca5a639 LP |
1488 | if (entity->bNrInPins == 1) { |
1489 | id = entity->baSourceID[0]; | |
c0efd232 LP |
1490 | break; |
1491 | } | |
1492 | ||
1493 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1494 | printk(KERN_CONT " <- IT"); |
c0efd232 | 1495 | |
8e113595 | 1496 | chain->selector = entity; |
8ca5a639 LP |
1497 | for (i = 0; i < entity->bNrInPins; ++i) { |
1498 | id = entity->baSourceID[i]; | |
8e113595 | 1499 | term = uvc_entity_by_id(chain->dev, id); |
c0efd232 LP |
1500 | if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { |
1501 | uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " | |
1502 | "input %d isn't connected to an " | |
1503 | "input terminal\n", entity->id, i); | |
1504 | return -1; | |
1505 | } | |
1506 | ||
1507 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1508 | printk(KERN_CONT " %d", term->id); |
c0efd232 | 1509 | |
6241d8ca | 1510 | list_add_tail(&term->chain, &chain->entities); |
8e113595 | 1511 | uvc_scan_chain_forward(chain, term, entity); |
c0efd232 LP |
1512 | } |
1513 | ||
1514 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
69396c4e | 1515 | printk(KERN_CONT "\n"); |
c0efd232 LP |
1516 | |
1517 | id = 0; | |
1518 | break; | |
4057ac6c LP |
1519 | |
1520 | case UVC_ITT_VENDOR_SPECIFIC: | |
1521 | case UVC_ITT_CAMERA: | |
1522 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: | |
1523 | case UVC_OTT_VENDOR_SPECIFIC: | |
1524 | case UVC_OTT_DISPLAY: | |
1525 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1526 | case UVC_TT_STREAMING: | |
8ca5a639 | 1527 | id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; |
4057ac6c | 1528 | break; |
c0efd232 LP |
1529 | } |
1530 | ||
4057ac6c LP |
1531 | if (id <= 0) { |
1532 | *_entity = NULL; | |
1533 | return id; | |
1534 | } | |
1535 | ||
1536 | entity = uvc_entity_by_id(chain->dev, id); | |
1537 | if (entity == NULL) { | |
1538 | uvc_trace(UVC_TRACE_DESCR, "Found reference to " | |
1539 | "unknown entity %d.\n", id); | |
1540 | return -EINVAL; | |
1541 | } | |
1542 | ||
1543 | *_entity = entity; | |
1544 | return 0; | |
c0efd232 LP |
1545 | } |
1546 | ||
8e113595 | 1547 | static int uvc_scan_chain(struct uvc_video_chain *chain, |
4057ac6c | 1548 | struct uvc_entity *term) |
c0efd232 LP |
1549 | { |
1550 | struct uvc_entity *entity, *prev; | |
c0efd232 | 1551 | |
4057ac6c | 1552 | uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain:"); |
ff924203 | 1553 | |
4057ac6c LP |
1554 | entity = term; |
1555 | prev = NULL; | |
8e113595 | 1556 | |
4057ac6c LP |
1557 | while (entity != NULL) { |
1558 | /* Entity must not be part of an existing chain */ | |
8e113595 LP |
1559 | if (entity->chain.next || entity->chain.prev) { |
1560 | uvc_trace(UVC_TRACE_DESCR, "Found reference to " | |
4057ac6c | 1561 | "entity %d already in chain.\n", entity->id); |
8e113595 | 1562 | return -EINVAL; |
c0efd232 LP |
1563 | } |
1564 | ||
1565 | /* Process entity */ | |
8e113595 LP |
1566 | if (uvc_scan_chain_entity(chain, entity) < 0) |
1567 | return -EINVAL; | |
c0efd232 LP |
1568 | |
1569 | /* Forward scan */ | |
8e113595 LP |
1570 | if (uvc_scan_chain_forward(chain, entity, prev) < 0) |
1571 | return -EINVAL; | |
c0efd232 | 1572 | |
c0efd232 | 1573 | /* Backward scan */ |
4057ac6c LP |
1574 | prev = entity; |
1575 | if (uvc_scan_chain_backward(chain, &entity) < 0) | |
1576 | return -EINVAL; | |
c0efd232 LP |
1577 | } |
1578 | ||
8e113595 LP |
1579 | return 0; |
1580 | } | |
1581 | ||
6241d8ca LP |
1582 | static unsigned int uvc_print_terms(struct list_head *terms, u16 dir, |
1583 | char *buffer) | |
8e113595 LP |
1584 | { |
1585 | struct uvc_entity *term; | |
1586 | unsigned int nterms = 0; | |
1587 | char *p = buffer; | |
1588 | ||
1589 | list_for_each_entry(term, terms, chain) { | |
6241d8ca LP |
1590 | if (!UVC_ENTITY_IS_TERM(term) || |
1591 | UVC_TERM_DIRECTION(term) != dir) | |
1592 | continue; | |
1593 | ||
1594 | if (nterms) | |
8e113595 | 1595 | p += sprintf(p, ","); |
6241d8ca LP |
1596 | if (++nterms >= 4) { |
1597 | p += sprintf(p, "..."); | |
1598 | break; | |
8e113595 | 1599 | } |
6241d8ca | 1600 | p += sprintf(p, "%u", term->id); |
ff924203 | 1601 | } |
c0efd232 | 1602 | |
8e113595 LP |
1603 | return p - buffer; |
1604 | } | |
1605 | ||
1606 | static const char *uvc_print_chain(struct uvc_video_chain *chain) | |
1607 | { | |
1608 | static char buffer[43]; | |
1609 | char *p = buffer; | |
1610 | ||
6241d8ca | 1611 | p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p); |
8e113595 | 1612 | p += sprintf(p, " -> "); |
6241d8ca | 1613 | uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p); |
8e113595 LP |
1614 | |
1615 | return buffer; | |
c0efd232 LP |
1616 | } |
1617 | ||
e950267a HI |
1618 | static struct uvc_video_chain *uvc_alloc_chain(struct uvc_device *dev) |
1619 | { | |
1620 | struct uvc_video_chain *chain; | |
1621 | ||
1622 | chain = kzalloc(sizeof(*chain), GFP_KERNEL); | |
1623 | if (chain == NULL) | |
1624 | return NULL; | |
1625 | ||
1626 | INIT_LIST_HEAD(&chain->entities); | |
1627 | mutex_init(&chain->ctrl_mutex); | |
1628 | chain->dev = dev; | |
1629 | v4l2_prio_init(&chain->prio); | |
1630 | ||
1631 | return chain; | |
1632 | } | |
1633 | ||
1634 | /* | |
1635 | * Fallback heuristic for devices that don't connect units and terminals in a | |
1636 | * valid chain. | |
1637 | * | |
1638 | * Some devices have invalid baSourceID references, causing uvc_scan_chain() | |
1639 | * to fail, but if we just take the entities we can find and put them together | |
1640 | * in the most sensible chain we can think of, turns out they do work anyway. | |
1641 | * Note: This heuristic assumes there is a single chain. | |
1642 | * | |
1643 | * At the time of writing, devices known to have such a broken chain are | |
1644 | * - Acer Integrated Camera (5986:055a) | |
1645 | * - Realtek rtl157a7 (0bda:57a7) | |
1646 | */ | |
1647 | static int uvc_scan_fallback(struct uvc_device *dev) | |
1648 | { | |
1649 | struct uvc_video_chain *chain; | |
1650 | struct uvc_entity *iterm = NULL; | |
1651 | struct uvc_entity *oterm = NULL; | |
1652 | struct uvc_entity *entity; | |
1653 | struct uvc_entity *prev; | |
1654 | ||
1655 | /* | |
1656 | * Start by locating the input and output terminals. We only support | |
1657 | * devices with exactly one of each for now. | |
1658 | */ | |
1659 | list_for_each_entry(entity, &dev->entities, list) { | |
1660 | if (UVC_ENTITY_IS_ITERM(entity)) { | |
1661 | if (iterm) | |
1662 | return -EINVAL; | |
1663 | iterm = entity; | |
1664 | } | |
1665 | ||
1666 | if (UVC_ENTITY_IS_OTERM(entity)) { | |
1667 | if (oterm) | |
1668 | return -EINVAL; | |
1669 | oterm = entity; | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | if (iterm == NULL || oterm == NULL) | |
1674 | return -EINVAL; | |
1675 | ||
1676 | /* Allocate the chain and fill it. */ | |
1677 | chain = uvc_alloc_chain(dev); | |
1678 | if (chain == NULL) | |
1679 | return -ENOMEM; | |
1680 | ||
1681 | if (uvc_scan_chain_entity(chain, oterm) < 0) | |
1682 | goto error; | |
1683 | ||
1684 | prev = oterm; | |
1685 | ||
1686 | /* | |
1687 | * Add all Processing and Extension Units with two pads. The order | |
1688 | * doesn't matter much, use reverse list traversal to connect units in | |
1689 | * UVC descriptor order as we build the chain from output to input. This | |
1690 | * leads to units appearing in the order meant by the manufacturer for | |
1691 | * the cameras known to require this heuristic. | |
1692 | */ | |
1693 | list_for_each_entry_reverse(entity, &dev->entities, list) { | |
1694 | if (entity->type != UVC_VC_PROCESSING_UNIT && | |
1695 | entity->type != UVC_VC_EXTENSION_UNIT) | |
1696 | continue; | |
1697 | ||
1698 | if (entity->num_pads != 2) | |
1699 | continue; | |
1700 | ||
1701 | if (uvc_scan_chain_entity(chain, entity) < 0) | |
1702 | goto error; | |
1703 | ||
1704 | prev->baSourceID[0] = entity->id; | |
1705 | prev = entity; | |
1706 | } | |
1707 | ||
1708 | if (uvc_scan_chain_entity(chain, iterm) < 0) | |
1709 | goto error; | |
1710 | ||
1711 | prev->baSourceID[0] = iterm->id; | |
1712 | ||
1713 | list_add_tail(&chain->list, &dev->chains); | |
1714 | ||
1715 | uvc_trace(UVC_TRACE_PROBE, | |
1716 | "Found a video chain by fallback heuristic (%s).\n", | |
1717 | uvc_print_chain(chain)); | |
1718 | ||
1719 | return 0; | |
1720 | ||
1721 | error: | |
1722 | kfree(chain); | |
1723 | return -EINVAL; | |
1724 | } | |
1725 | ||
c0efd232 | 1726 | /* |
35f02a68 | 1727 | * Scan the device for video chains and register video devices. |
c0efd232 | 1728 | * |
8e113595 | 1729 | * Chains are scanned starting at their output terminals and walked backwards. |
c0efd232 | 1730 | */ |
35f02a68 | 1731 | static int uvc_scan_device(struct uvc_device *dev) |
c0efd232 | 1732 | { |
8e113595 | 1733 | struct uvc_video_chain *chain; |
c0efd232 | 1734 | struct uvc_entity *term; |
c0efd232 | 1735 | |
c0efd232 | 1736 | list_for_each_entry(term, &dev->entities, list) { |
8e113595 | 1737 | if (!UVC_ENTITY_IS_OTERM(term)) |
c0efd232 LP |
1738 | continue; |
1739 | ||
8e113595 LP |
1740 | /* If the terminal is already included in a chain, skip it. |
1741 | * This can happen for chains that have multiple output | |
1742 | * terminals, where all output terminals beside the first one | |
1743 | * will be inserted in the chain in forward scans. | |
1744 | */ | |
1745 | if (term->chain.next || term->chain.prev) | |
c0efd232 LP |
1746 | continue; |
1747 | ||
e950267a | 1748 | chain = uvc_alloc_chain(dev); |
8e113595 LP |
1749 | if (chain == NULL) |
1750 | return -ENOMEM; | |
1751 | ||
8be8ec6e LP |
1752 | term->flags |= UVC_ENTITY_FLAG_DEFAULT; |
1753 | ||
8e113595 LP |
1754 | if (uvc_scan_chain(chain, term) < 0) { |
1755 | kfree(chain); | |
1756 | continue; | |
c0efd232 | 1757 | } |
8e113595 LP |
1758 | |
1759 | uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", | |
1760 | uvc_print_chain(chain)); | |
1761 | ||
1762 | list_add_tail(&chain->list, &dev->chains); | |
c0efd232 LP |
1763 | } |
1764 | ||
e950267a HI |
1765 | if (list_empty(&dev->chains)) |
1766 | uvc_scan_fallback(dev); | |
1767 | ||
8e113595 | 1768 | if (list_empty(&dev->chains)) { |
c0efd232 LP |
1769 | uvc_printk(KERN_INFO, "No valid video chain found.\n"); |
1770 | return -1; | |
1771 | } | |
1772 | ||
c0efd232 LP |
1773 | return 0; |
1774 | } | |
1775 | ||
8e113595 LP |
1776 | /* ------------------------------------------------------------------------ |
1777 | * Video device registration and unregistration | |
1778 | */ | |
1779 | ||
716fdee1 LP |
1780 | /* |
1781 | * Delete the UVC device. | |
1782 | * | |
1783 | * Called by the kernel when the last reference to the uvc_device structure | |
1784 | * is released. | |
1785 | * | |
1786 | * As this function is called after or during disconnect(), all URBs have | |
1787 | * already been canceled by the USB core. There is no need to kill the | |
1788 | * interrupt URB manually. | |
1789 | */ | |
1790 | static void uvc_delete(struct uvc_device *dev) | |
1791 | { | |
1792 | struct list_head *p, *n; | |
1793 | ||
716fdee1 LP |
1794 | uvc_status_cleanup(dev); |
1795 | uvc_ctrl_cleanup_device(dev); | |
1796 | ||
2228d80d TI |
1797 | usb_put_intf(dev->intf); |
1798 | usb_put_dev(dev->udev); | |
1799 | ||
5a254d75 LP |
1800 | if (dev->vdev.dev) |
1801 | v4l2_device_unregister(&dev->vdev); | |
1802 | #ifdef CONFIG_MEDIA_CONTROLLER | |
a087ce70 | 1803 | if (media_devnode_is_registered(dev->mdev.devnode)) |
5a254d75 | 1804 | media_device_unregister(&dev->mdev); |
9832e155 | 1805 | media_device_cleanup(&dev->mdev); |
5a254d75 LP |
1806 | #endif |
1807 | ||
716fdee1 LP |
1808 | list_for_each_safe(p, n, &dev->chains) { |
1809 | struct uvc_video_chain *chain; | |
1810 | chain = list_entry(p, struct uvc_video_chain, list); | |
1811 | kfree(chain); | |
1812 | } | |
1813 | ||
1814 | list_for_each_safe(p, n, &dev->entities) { | |
1815 | struct uvc_entity *entity; | |
1816 | entity = list_entry(p, struct uvc_entity, list); | |
4ffc2d89 LP |
1817 | #ifdef CONFIG_MEDIA_CONTROLLER |
1818 | uvc_mc_cleanup_entity(entity); | |
1819 | #endif | |
716fdee1 LP |
1820 | kfree(entity); |
1821 | } | |
1822 | ||
1823 | list_for_each_safe(p, n, &dev->streams) { | |
1824 | struct uvc_streaming *streaming; | |
1825 | streaming = list_entry(p, struct uvc_streaming, list); | |
1826 | usb_driver_release_interface(&uvc_driver.driver, | |
1827 | streaming->intf); | |
1828 | usb_put_intf(streaming->intf); | |
1829 | kfree(streaming->format); | |
1830 | kfree(streaming->header.bmaControls); | |
1831 | kfree(streaming); | |
1832 | } | |
1833 | ||
1834 | kfree(dev); | |
1835 | } | |
1836 | ||
1837 | static void uvc_release(struct video_device *vdev) | |
1838 | { | |
1839 | struct uvc_streaming *stream = video_get_drvdata(vdev); | |
1840 | struct uvc_device *dev = stream->dev; | |
1841 | ||
716fdee1 LP |
1842 | /* Decrement the registered streams count and delete the device when it |
1843 | * reaches zero. | |
1844 | */ | |
1845 | if (atomic_dec_and_test(&dev->nstreams)) | |
1846 | uvc_delete(dev); | |
1847 | } | |
1848 | ||
8e113595 LP |
1849 | /* |
1850 | * Unregister the video devices. | |
1851 | */ | |
1852 | static void uvc_unregister_video(struct uvc_device *dev) | |
1853 | { | |
1854 | struct uvc_streaming *stream; | |
1855 | ||
716fdee1 LP |
1856 | /* Unregistering all video devices might result in uvc_delete() being |
1857 | * called from inside the loop if there's no open file handle. To avoid | |
1858 | * that, increment the stream count before iterating over the streams | |
1859 | * and decrement it when done. | |
1860 | */ | |
1861 | atomic_inc(&dev->nstreams); | |
1862 | ||
8e113595 | 1863 | list_for_each_entry(stream, &dev->streams, list) { |
d8da7513 | 1864 | if (!video_is_registered(&stream->vdev)) |
8e113595 LP |
1865 | continue; |
1866 | ||
d8da7513 | 1867 | video_unregister_device(&stream->vdev); |
edbaa398 OR |
1868 | |
1869 | uvc_debugfs_cleanup_stream(stream); | |
8e113595 | 1870 | } |
716fdee1 LP |
1871 | |
1872 | /* Decrement the stream count and call uvc_delete explicitly if there | |
1873 | * are no stream left. | |
1874 | */ | |
1875 | if (atomic_dec_and_test(&dev->nstreams)) | |
1876 | uvc_delete(dev); | |
8e113595 LP |
1877 | } |
1878 | ||
1879 | static int uvc_register_video(struct uvc_device *dev, | |
1880 | struct uvc_streaming *stream) | |
1881 | { | |
d8da7513 | 1882 | struct video_device *vdev = &stream->vdev; |
8e113595 LP |
1883 | int ret; |
1884 | ||
b83bba24 LP |
1885 | /* Initialize the video buffers queue. */ |
1886 | ret = uvc_queue_init(&stream->queue, stream->type, !uvc_no_drop_param); | |
1887 | if (ret) | |
1888 | return ret; | |
1889 | ||
8e113595 LP |
1890 | /* Initialize the streaming interface with default streaming |
1891 | * parameters. | |
1892 | */ | |
1893 | ret = uvc_video_init(stream); | |
1894 | if (ret < 0) { | |
1895 | uvc_printk(KERN_ERR, "Failed to initialize the device " | |
1896 | "(%d).\n", ret); | |
1897 | return ret; | |
1898 | } | |
1899 | ||
edbaa398 OR |
1900 | uvc_debugfs_init_stream(stream); |
1901 | ||
8e113595 | 1902 | /* Register the device with V4L. */ |
8e113595 LP |
1903 | |
1904 | /* We already hold a reference to dev->udev. The video device will be | |
1905 | * unregistered before the reference is released, so we don't need to | |
1906 | * get another one. | |
1907 | */ | |
5a254d75 | 1908 | vdev->v4l2_dev = &dev->vdev; |
8e113595 | 1909 | vdev->fops = &uvc_fops; |
d5e90b7a | 1910 | vdev->ioctl_ops = &uvc_ioctl_ops; |
716fdee1 | 1911 | vdev->release = uvc_release; |
0550513c | 1912 | vdev->prio = &stream->chain->prio; |
954f340f HV |
1913 | if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
1914 | vdev->vfl_dir = VFL_DIR_TX; | |
8e113595 LP |
1915 | strlcpy(vdev->name, dev->name, sizeof vdev->name); |
1916 | ||
1917 | /* Set the driver data before calling video_register_device, otherwise | |
1918 | * uvc_v4l2_open might race us. | |
1919 | */ | |
8e113595 LP |
1920 | video_set_drvdata(vdev, stream); |
1921 | ||
1922 | ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); | |
1923 | if (ret < 0) { | |
1924 | uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", | |
1925 | ret); | |
8e113595 LP |
1926 | return ret; |
1927 | } | |
1928 | ||
f887e99a LP |
1929 | if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1930 | stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE; | |
1931 | else | |
1932 | stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; | |
1933 | ||
716fdee1 | 1934 | atomic_inc(&dev->nstreams); |
8e113595 LP |
1935 | return 0; |
1936 | } | |
1937 | ||
1938 | /* | |
1939 | * Register all video devices in all chains. | |
1940 | */ | |
1941 | static int uvc_register_terms(struct uvc_device *dev, | |
6241d8ca | 1942 | struct uvc_video_chain *chain) |
8e113595 LP |
1943 | { |
1944 | struct uvc_streaming *stream; | |
1945 | struct uvc_entity *term; | |
1946 | int ret; | |
1947 | ||
6241d8ca | 1948 | list_for_each_entry(term, &chain->entities, chain) { |
8e113595 LP |
1949 | if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) |
1950 | continue; | |
1951 | ||
1952 | stream = uvc_stream_by_id(dev, term->id); | |
1953 | if (stream == NULL) { | |
1954 | uvc_printk(KERN_INFO, "No streaming interface found " | |
1955 | "for terminal %u.", term->id); | |
1956 | continue; | |
1957 | } | |
1958 | ||
1959 | stream->chain = chain; | |
1960 | ret = uvc_register_video(dev, stream); | |
1961 | if (ret < 0) | |
1962 | return ret; | |
8a65a948 | 1963 | |
d8da7513 | 1964 | term->vdev = &stream->vdev; |
8e113595 LP |
1965 | } |
1966 | ||
1967 | return 0; | |
1968 | } | |
1969 | ||
1970 | static int uvc_register_chains(struct uvc_device *dev) | |
1971 | { | |
1972 | struct uvc_video_chain *chain; | |
1973 | int ret; | |
1974 | ||
1975 | list_for_each_entry(chain, &dev->chains, list) { | |
6241d8ca | 1976 | ret = uvc_register_terms(dev, chain); |
8e113595 LP |
1977 | if (ret < 0) |
1978 | return ret; | |
4ffc2d89 LP |
1979 | |
1980 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1981 | ret = uvc_mc_register_entities(chain); | |
1982 | if (ret < 0) { | |
1983 | uvc_printk(KERN_INFO, "Failed to register entites " | |
1984 | "(%d).\n", ret); | |
1985 | } | |
1986 | #endif | |
8e113595 LP |
1987 | } |
1988 | ||
1989 | return 0; | |
1990 | } | |
1991 | ||
1992 | /* ------------------------------------------------------------------------ | |
1993 | * USB probe, disconnect, suspend and resume | |
1994 | */ | |
1995 | ||
c0efd232 LP |
1996 | static int uvc_probe(struct usb_interface *intf, |
1997 | const struct usb_device_id *id) | |
1998 | { | |
1999 | struct usb_device *udev = interface_to_usbdev(intf); | |
2000 | struct uvc_device *dev; | |
2001 | int ret; | |
2002 | ||
2003 | if (id->idVendor && id->idProduct) | |
2004 | uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " | |
2005 | "(%04x:%04x)\n", udev->devpath, id->idVendor, | |
2006 | id->idProduct); | |
2007 | else | |
2008 | uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", | |
2009 | udev->devpath); | |
2010 | ||
2c2d264b | 2011 | /* Allocate memory for the device and initialize it. */ |
c0efd232 LP |
2012 | if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) |
2013 | return -ENOMEM; | |
2014 | ||
2015 | INIT_LIST_HEAD(&dev->entities); | |
8e113595 | 2016 | INIT_LIST_HEAD(&dev->chains); |
35f02a68 | 2017 | INIT_LIST_HEAD(&dev->streams); |
716fdee1 | 2018 | atomic_set(&dev->nstreams, 0); |
8fb91b33 | 2019 | atomic_set(&dev->nmappings, 0); |
17706f56 | 2020 | mutex_init(&dev->lock); |
c0efd232 LP |
2021 | |
2022 | dev->udev = usb_get_dev(udev); | |
2023 | dev->intf = usb_get_intf(intf); | |
2024 | dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
73de3592 LP |
2025 | dev->quirks = (uvc_quirks_param == -1) |
2026 | ? id->driver_info : uvc_quirks_param; | |
c0efd232 LP |
2027 | |
2028 | if (udev->product != NULL) | |
d0ebf307 | 2029 | strlcpy(dev->name, udev->product, sizeof dev->name); |
c0efd232 LP |
2030 | else |
2031 | snprintf(dev->name, sizeof dev->name, | |
2032 | "UVC Camera (%04x:%04x)", | |
2033 | le16_to_cpu(udev->descriptor.idVendor), | |
2034 | le16_to_cpu(udev->descriptor.idProduct)); | |
2035 | ||
2c2d264b | 2036 | /* Parse the Video Class control descriptor. */ |
c0efd232 LP |
2037 | if (uvc_parse_control(dev) < 0) { |
2038 | uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " | |
2039 | "descriptors.\n"); | |
2040 | goto error; | |
2041 | } | |
2042 | ||
fba4578e | 2043 | uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n", |
c0efd232 LP |
2044 | dev->uvc_version >> 8, dev->uvc_version & 0xff, |
2045 | udev->product ? udev->product : "<unnamed>", | |
2046 | le16_to_cpu(udev->descriptor.idVendor), | |
2047 | le16_to_cpu(udev->descriptor.idProduct)); | |
2048 | ||
73de3592 LP |
2049 | if (dev->quirks != id->driver_info) { |
2050 | uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module " | |
2051 | "parameter for testing purpose.\n", dev->quirks); | |
c0efd232 LP |
2052 | uvc_printk(KERN_INFO, "Please report required quirks to the " |
2053 | "linux-uvc-devel mailing list.\n"); | |
2054 | } | |
2055 | ||
9832e155 | 2056 | /* Initialize the media device and register the V4L2 device. */ |
5a254d75 LP |
2057 | #ifdef CONFIG_MEDIA_CONTROLLER |
2058 | dev->mdev.dev = &intf->dev; | |
2059 | strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); | |
2060 | if (udev->serial) | |
2061 | strlcpy(dev->mdev.serial, udev->serial, | |
2062 | sizeof(dev->mdev.serial)); | |
2063 | strcpy(dev->mdev.bus_info, udev->devpath); | |
2064 | dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); | |
fd3e5824 | 2065 | dev->mdev.driver_version = LINUX_VERSION_CODE; |
9832e155 | 2066 | media_device_init(&dev->mdev); |
5a254d75 LP |
2067 | |
2068 | dev->vdev.mdev = &dev->mdev; | |
2069 | #endif | |
2070 | if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) | |
2071 | goto error; | |
2072 | ||
2c2d264b | 2073 | /* Initialize controls. */ |
c0efd232 LP |
2074 | if (uvc_ctrl_init_device(dev) < 0) |
2075 | goto error; | |
2076 | ||
8e113595 | 2077 | /* Scan the device for video chains. */ |
35f02a68 | 2078 | if (uvc_scan_device(dev) < 0) |
c0efd232 LP |
2079 | goto error; |
2080 | ||
5a254d75 | 2081 | /* Register video device nodes. */ |
8e113595 LP |
2082 | if (uvc_register_chains(dev) < 0) |
2083 | goto error; | |
2084 | ||
9832e155 JMC |
2085 | #ifdef CONFIG_MEDIA_CONTROLLER |
2086 | /* Register the media device node */ | |
2087 | if (media_device_register(&dev->mdev) < 0) | |
2088 | goto error; | |
2089 | #endif | |
2c2d264b | 2090 | /* Save our data pointer in the interface data. */ |
c0efd232 LP |
2091 | usb_set_intfdata(intf, dev); |
2092 | ||
2c2d264b | 2093 | /* Initialize the interrupt URB. */ |
c0efd232 LP |
2094 | if ((ret = uvc_status_init(dev)) < 0) { |
2095 | uvc_printk(KERN_INFO, "Unable to initialize the status " | |
2096 | "endpoint (%d), status interrupt will not be " | |
2097 | "supported.\n", ret); | |
2098 | } | |
2099 | ||
2100 | uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); | |
3dae8b41 | 2101 | usb_enable_autosuspend(udev); |
c0efd232 LP |
2102 | return 0; |
2103 | ||
2104 | error: | |
716fdee1 | 2105 | uvc_unregister_video(dev); |
c0efd232 LP |
2106 | return -ENODEV; |
2107 | } | |
2108 | ||
2109 | static void uvc_disconnect(struct usb_interface *intf) | |
2110 | { | |
2111 | struct uvc_device *dev = usb_get_intfdata(intf); | |
2112 | ||
2113 | /* Set the USB interface data to NULL. This can be done outside the | |
2114 | * lock, as there's no other reader. | |
2115 | */ | |
2116 | usb_set_intfdata(intf, NULL); | |
2117 | ||
b482d923 LP |
2118 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
2119 | UVC_SC_VIDEOSTREAMING) | |
c0efd232 LP |
2120 | return; |
2121 | ||
716fdee1 | 2122 | uvc_unregister_video(dev); |
c0efd232 LP |
2123 | } |
2124 | ||
2125 | static int uvc_suspend(struct usb_interface *intf, pm_message_t message) | |
2126 | { | |
2127 | struct uvc_device *dev = usb_get_intfdata(intf); | |
35f02a68 | 2128 | struct uvc_streaming *stream; |
c0efd232 LP |
2129 | |
2130 | uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", | |
2131 | intf->cur_altsetting->desc.bInterfaceNumber); | |
2132 | ||
2133 | /* Controls are cached on the fly so they don't need to be saved. */ | |
b482d923 | 2134 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
17706f56 LP |
2135 | UVC_SC_VIDEOCONTROL) { |
2136 | mutex_lock(&dev->lock); | |
2137 | if (dev->users) | |
2138 | uvc_status_stop(dev); | |
2139 | mutex_unlock(&dev->lock); | |
2140 | return 0; | |
2141 | } | |
c0efd232 | 2142 | |
35f02a68 LP |
2143 | list_for_each_entry(stream, &dev->streams, list) { |
2144 | if (stream->intf == intf) | |
2145 | return uvc_video_suspend(stream); | |
c0efd232 LP |
2146 | } |
2147 | ||
35f02a68 LP |
2148 | uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " |
2149 | "mismatch.\n"); | |
2150 | return -EINVAL; | |
c0efd232 LP |
2151 | } |
2152 | ||
9b0ae867 | 2153 | static int __uvc_resume(struct usb_interface *intf, int reset) |
c0efd232 LP |
2154 | { |
2155 | struct uvc_device *dev = usb_get_intfdata(intf); | |
35f02a68 | 2156 | struct uvc_streaming *stream; |
b83bba24 | 2157 | int ret = 0; |
c0efd232 LP |
2158 | |
2159 | uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", | |
2160 | intf->cur_altsetting->desc.bInterfaceNumber); | |
2161 | ||
b482d923 LP |
2162 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
2163 | UVC_SC_VIDEOCONTROL) { | |
17706f56 | 2164 | if (reset) { |
17e1319f | 2165 | ret = uvc_ctrl_restore_values(dev); |
7564f67d HV |
2166 | if (ret < 0) |
2167 | return ret; | |
2168 | } | |
c0efd232 | 2169 | |
17706f56 LP |
2170 | mutex_lock(&dev->lock); |
2171 | if (dev->users) | |
2172 | ret = uvc_status_start(dev, GFP_NOIO); | |
2173 | mutex_unlock(&dev->lock); | |
2174 | ||
2175 | return ret; | |
c0efd232 LP |
2176 | } |
2177 | ||
35f02a68 | 2178 | list_for_each_entry(stream, &dev->streams, list) { |
b83bba24 LP |
2179 | if (stream->intf == intf) { |
2180 | ret = uvc_video_resume(stream, reset); | |
2181 | if (ret < 0) | |
0da4ab98 LP |
2182 | uvc_queue_streamoff(&stream->queue, |
2183 | stream->queue.queue.type); | |
b83bba24 LP |
2184 | return ret; |
2185 | } | |
c0efd232 LP |
2186 | } |
2187 | ||
35f02a68 LP |
2188 | uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " |
2189 | "mismatch.\n"); | |
2190 | return -EINVAL; | |
c0efd232 LP |
2191 | } |
2192 | ||
9b0ae867 LP |
2193 | static int uvc_resume(struct usb_interface *intf) |
2194 | { | |
2195 | return __uvc_resume(intf, 0); | |
2196 | } | |
2197 | ||
2198 | static int uvc_reset_resume(struct usb_interface *intf) | |
2199 | { | |
2200 | return __uvc_resume(intf, 1); | |
2201 | } | |
2202 | ||
310fe524 LP |
2203 | /* ------------------------------------------------------------------------ |
2204 | * Module parameters | |
2205 | */ | |
2206 | ||
2207 | static int uvc_clock_param_get(char *buffer, struct kernel_param *kp) | |
2208 | { | |
2209 | if (uvc_clock_param == CLOCK_MONOTONIC) | |
2210 | return sprintf(buffer, "CLOCK_MONOTONIC"); | |
2211 | else | |
2212 | return sprintf(buffer, "CLOCK_REALTIME"); | |
2213 | } | |
2214 | ||
2215 | static int uvc_clock_param_set(const char *val, struct kernel_param *kp) | |
2216 | { | |
2217 | if (strncasecmp(val, "clock_", strlen("clock_")) == 0) | |
2218 | val += strlen("clock_"); | |
2219 | ||
2220 | if (strcasecmp(val, "monotonic") == 0) | |
2221 | uvc_clock_param = CLOCK_MONOTONIC; | |
2222 | else if (strcasecmp(val, "realtime") == 0) | |
2223 | uvc_clock_param = CLOCK_REALTIME; | |
2224 | else | |
2225 | return -EINVAL; | |
2226 | ||
2227 | return 0; | |
2228 | } | |
2229 | ||
2230 | module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, | |
2231 | &uvc_clock_param, S_IRUGO|S_IWUSR); | |
2232 | MODULE_PARM_DESC(clock, "Video buffers timestamp clock"); | |
5d0fd3c8 LP |
2233 | module_param_named(hwtimestamps, uvc_hw_timestamps_param, uint, S_IRUGO|S_IWUSR); |
2234 | MODULE_PARM_DESC(hwtimestamps, "Use hardware timestamps"); | |
310fe524 LP |
2235 | module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); |
2236 | MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); | |
2237 | module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); | |
2238 | MODULE_PARM_DESC(quirks, "Forced device quirks"); | |
2239 | module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); | |
2240 | MODULE_PARM_DESC(trace, "Trace level bitmask"); | |
2241 | module_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); | |
2242 | MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); | |
2243 | ||
c0efd232 LP |
2244 | /* ------------------------------------------------------------------------ |
2245 | * Driver initialization and cleanup | |
2246 | */ | |
2247 | ||
2248 | /* | |
2249 | * The Logitech cameras listed below have their interface class set to | |
2250 | * VENDOR_SPEC because they don't announce themselves as UVC devices, even | |
2251 | * though they are compliant. | |
2252 | */ | |
2253 | static struct usb_device_id uvc_ids[] = { | |
4eb2697e LP |
2254 | /* LogiLink Wireless Webcam */ |
2255 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2256 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2257 | .idVendor = 0x0416, | |
2258 | .idProduct = 0xa91a, | |
2259 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2260 | .bInterfaceSubClass = 1, | |
2261 | .bInterfaceProtocol = 0, | |
2262 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
bce039c0 LP |
2263 | /* Genius eFace 2025 */ |
2264 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2265 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2266 | .idVendor = 0x0458, | |
2267 | .idProduct = 0x706e, | |
2268 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2269 | .bInterfaceSubClass = 1, | |
2270 | .bInterfaceProtocol = 0, | |
2271 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2272 | /* Microsoft Lifecam NX-6000 */ |
2273 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2274 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2275 | .idVendor = 0x045e, | |
2276 | .idProduct = 0x00f8, | |
2277 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2278 | .bInterfaceSubClass = 1, | |
2279 | .bInterfaceProtocol = 0, | |
2280 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
1558ec83 LP |
2281 | /* Microsoft Lifecam NX-3000 */ |
2282 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2283 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2284 | .idVendor = 0x045e, | |
2285 | .idProduct = 0x0721, | |
2286 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2287 | .bInterfaceSubClass = 1, | |
2288 | .bInterfaceProtocol = 0, | |
2289 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c0efd232 LP |
2290 | /* Microsoft Lifecam VX-7000 */ |
2291 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2292 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2293 | .idVendor = 0x045e, | |
2294 | .idProduct = 0x0723, | |
2295 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2296 | .bInterfaceSubClass = 1, | |
2297 | .bInterfaceProtocol = 0, | |
2298 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
2299 | /* Logitech Quickcam Fusion */ | |
2300 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2301 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2302 | .idVendor = 0x046d, | |
2303 | .idProduct = 0x08c1, | |
2304 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2305 | .bInterfaceSubClass = 1, | |
2306 | .bInterfaceProtocol = 0 }, | |
2307 | /* Logitech Quickcam Orbit MP */ | |
2308 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2309 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2310 | .idVendor = 0x046d, | |
2311 | .idProduct = 0x08c2, | |
2312 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2313 | .bInterfaceSubClass = 1, | |
2314 | .bInterfaceProtocol = 0 }, | |
2315 | /* Logitech Quickcam Pro for Notebook */ | |
2316 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2317 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2318 | .idVendor = 0x046d, | |
2319 | .idProduct = 0x08c3, | |
2320 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2321 | .bInterfaceSubClass = 1, | |
2322 | .bInterfaceProtocol = 0 }, | |
2323 | /* Logitech Quickcam Pro 5000 */ | |
2324 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2325 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2326 | .idVendor = 0x046d, | |
2327 | .idProduct = 0x08c5, | |
2328 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2329 | .bInterfaceSubClass = 1, | |
2330 | .bInterfaceProtocol = 0 }, | |
2331 | /* Logitech Quickcam OEM Dell Notebook */ | |
2332 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2333 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2334 | .idVendor = 0x046d, | |
2335 | .idProduct = 0x08c6, | |
2336 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2337 | .bInterfaceSubClass = 1, | |
2338 | .bInterfaceProtocol = 0 }, | |
2339 | /* Logitech Quickcam OEM Cisco VT Camera II */ | |
2340 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2341 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2342 | .idVendor = 0x046d, | |
2343 | .idProduct = 0x08c7, | |
2344 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2345 | .bInterfaceSubClass = 1, | |
2346 | .bInterfaceProtocol = 0 }, | |
17e1319f WM |
2347 | /* Logitech HD Pro Webcam C920 */ |
2348 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2349 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2350 | .idVendor = 0x046d, | |
2351 | .idProduct = 0x082d, | |
2352 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2353 | .bInterfaceSubClass = 1, | |
2354 | .bInterfaceProtocol = 0, | |
2355 | .driver_info = UVC_QUIRK_RESTORE_CTRLS_ON_INIT }, | |
86d8b6ab LP |
2356 | /* Chicony CNF7129 (Asus EEE 100HE) */ |
2357 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2358 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2359 | .idVendor = 0x04f2, | |
2360 | .idProduct = 0xb071, | |
2361 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2362 | .bInterfaceSubClass = 1, | |
2363 | .bInterfaceProtocol = 0, | |
2364 | .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE }, | |
f61d1d8a LP |
2365 | /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ |
2366 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2367 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2368 | .idVendor = 0x058f, | |
2369 | .idProduct = 0x3820, | |
2370 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2371 | .bInterfaceSubClass = 1, | |
2372 | .bInterfaceProtocol = 0, | |
2373 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
3efe2f1b LP |
2374 | /* Dell XPS m1530 */ |
2375 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2376 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2377 | .idVendor = 0x05a9, | |
2378 | .idProduct = 0x2640, | |
2379 | .bInterfaceClass = USB_CLASS_VIDEO, | |
89e0f248 JS |
2380 | .bInterfaceSubClass = 1, |
2381 | .bInterfaceProtocol = 0, | |
2382 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
2383 | /* Dell SP2008WFP Monitor */ | |
2384 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2385 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2386 | .idVendor = 0x05a9, | |
2387 | .idProduct = 0x2641, | |
2388 | .bInterfaceClass = USB_CLASS_VIDEO, | |
3efe2f1b LP |
2389 | .bInterfaceSubClass = 1, |
2390 | .bInterfaceProtocol = 0, | |
2391 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c2a273b2 JS |
2392 | /* Dell Alienware X51 */ |
2393 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2394 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2395 | .idVendor = 0x05a9, | |
2396 | .idProduct = 0x2643, | |
2397 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2398 | .bInterfaceSubClass = 1, | |
2399 | .bInterfaceProtocol = 0, | |
2400 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
afcf44c7 KM |
2401 | /* Dell Studio Hybrid 140g (OmniVision webcam) */ |
2402 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2403 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2404 | .idVendor = 0x05a9, | |
2405 | .idProduct = 0x264a, | |
2406 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2407 | .bInterfaceSubClass = 1, | |
2408 | .bInterfaceProtocol = 0, | |
2409 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
62ea864f PF |
2410 | /* Dell XPS M1330 (OmniVision OV7670 webcam) */ |
2411 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2412 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2413 | .idVendor = 0x05a9, | |
2414 | .idProduct = 0x7670, | |
2415 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2416 | .bInterfaceSubClass = 1, | |
2417 | .bInterfaceProtocol = 0, | |
2418 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c0efd232 | 2419 | /* Apple Built-In iSight */ |
2c2d264b | 2420 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
c0efd232 LP |
2421 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2422 | .idVendor = 0x05ac, | |
2423 | .idProduct = 0x8501, | |
2c2d264b LP |
2424 | .bInterfaceClass = USB_CLASS_VIDEO, |
2425 | .bInterfaceSubClass = 1, | |
2426 | .bInterfaceProtocol = 0, | |
c0efd232 LP |
2427 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2428 | | UVC_QUIRK_BUILTIN_ISIGHT }, | |
949d9264 KS |
2429 | /* Foxlink ("HP Webcam" on HP Mini 5103) */ |
2430 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2431 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2432 | .idVendor = 0x05c8, | |
2433 | .idProduct = 0x0403, | |
2434 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2435 | .bInterfaceSubClass = 1, | |
2436 | .bInterfaceProtocol = 0, | |
2437 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
c0efd232 | 2438 | /* Genesys Logic USB 2.0 PC Camera */ |
2c2d264b | 2439 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
c0efd232 | 2440 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2c2d264b LP |
2441 | .idVendor = 0x05e3, |
2442 | .idProduct = 0x0505, | |
2443 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2444 | .bInterfaceSubClass = 1, | |
2445 | .bInterfaceProtocol = 0, | |
2446 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
e01a2344 LP |
2447 | /* Hercules Classic Silver */ |
2448 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2449 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2450 | .idVendor = 0x06f8, | |
2451 | .idProduct = 0x300c, | |
2452 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2453 | .bInterfaceSubClass = 1, | |
2454 | .bInterfaceProtocol = 0, | |
2455 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
d79cd839 LP |
2456 | /* ViMicro Vega */ |
2457 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2458 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2459 | .idVendor = 0x0ac8, | |
2460 | .idProduct = 0x332d, | |
2461 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2462 | .bInterfaceSubClass = 1, | |
2463 | .bInterfaceProtocol = 0, | |
2464 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
2465 | /* ViMicro - Minoru3D */ | |
2466 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2467 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2468 | .idVendor = 0x0ac8, | |
2469 | .idProduct = 0x3410, | |
2470 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2471 | .bInterfaceSubClass = 1, | |
2472 | .bInterfaceProtocol = 0, | |
2473 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
2474 | /* ViMicro Venus - Minoru3D */ | |
2475 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
50144aee LP |
2476 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2477 | .idVendor = 0x0ac8, | |
d79cd839 | 2478 | .idProduct = 0x3420, |
50144aee LP |
2479 | .bInterfaceClass = USB_CLASS_VIDEO, |
2480 | .bInterfaceSubClass = 1, | |
2481 | .bInterfaceProtocol = 0, | |
2482 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
d584b838 LP |
2483 | /* Ophir Optronics - SPCAM 620U */ |
2484 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2485 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2486 | .idVendor = 0x0bd3, | |
2487 | .idProduct = 0x0555, | |
2488 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2489 | .bInterfaceSubClass = 1, | |
2490 | .bInterfaceProtocol = 0, | |
2491 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2492 | /* MT6227 */ |
2493 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2494 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2495 | .idVendor = 0x0e8d, | |
2496 | .idProduct = 0x0004, | |
2497 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2498 | .bInterfaceSubClass = 1, | |
2499 | .bInterfaceProtocol = 0, | |
bab6f66c LP |
2500 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2501 | | UVC_QUIRK_PROBE_DEF }, | |
9275b32b LP |
2502 | /* IMC Networks (Medion Akoya) */ |
2503 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2504 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2505 | .idVendor = 0x13d3, | |
2506 | .idProduct = 0x5103, | |
2507 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2508 | .bInterfaceSubClass = 1, | |
2509 | .bInterfaceProtocol = 0, | |
2510 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
d1787b1f LP |
2511 | /* JMicron USB2.0 XGA WebCam */ |
2512 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2513 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2514 | .idVendor = 0x152d, | |
2515 | .idProduct = 0x0310, | |
2516 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2517 | .bInterfaceSubClass = 1, | |
2518 | .bInterfaceProtocol = 0, | |
2519 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2520 | /* Syntek (HP Spartan) */ |
2521 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2522 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2523 | .idVendor = 0x174f, | |
2524 | .idProduct = 0x5212, | |
2525 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2526 | .bInterfaceSubClass = 1, | |
2527 | .bInterfaceProtocol = 0, | |
25e69850 | 2528 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, |
562f0fed LP |
2529 | /* Syntek (Samsung Q310) */ |
2530 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2531 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2532 | .idVendor = 0x174f, | |
2533 | .idProduct = 0x5931, | |
2534 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2535 | .bInterfaceSubClass = 1, | |
2536 | .bInterfaceProtocol = 0, | |
2537 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
f129b03b LP |
2538 | /* Syntek (Packard Bell EasyNote MX52 */ |
2539 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2540 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2541 | .idVendor = 0x174f, | |
2542 | .idProduct = 0x8a12, | |
2543 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2544 | .bInterfaceSubClass = 1, | |
2545 | .bInterfaceProtocol = 0, | |
2546 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
f61d1d8a | 2547 | /* Syntek (Asus F9SG) */ |
25e69850 LP |
2548 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2549 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2550 | .idVendor = 0x174f, | |
2551 | .idProduct = 0x8a31, | |
2552 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2553 | .bInterfaceSubClass = 1, | |
2554 | .bInterfaceProtocol = 0, | |
c0efd232 LP |
2555 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, |
2556 | /* Syntek (Asus U3S) */ | |
2557 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2558 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2559 | .idVendor = 0x174f, | |
2560 | .idProduct = 0x8a33, | |
2561 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2562 | .bInterfaceSubClass = 1, | |
2563 | .bInterfaceProtocol = 0, | |
2564 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
0ce566da LP |
2565 | /* Syntek (JAOtech Smart Terminal) */ |
2566 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2567 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2568 | .idVendor = 0x174f, | |
2569 | .idProduct = 0x8a34, | |
2570 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2571 | .bInterfaceSubClass = 1, | |
2572 | .bInterfaceProtocol = 0, | |
2573 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
70092c26 LP |
2574 | /* Miricle 307K */ |
2575 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2576 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2577 | .idVendor = 0x17dc, | |
2578 | .idProduct = 0x0202, | |
2579 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2580 | .bInterfaceSubClass = 1, | |
2581 | .bInterfaceProtocol = 0, | |
2582 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
849a3aba | 2583 | /* Lenovo Thinkpad SL400/SL500 */ |
2f38483b LP |
2584 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2585 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2586 | .idVendor = 0x17ef, | |
2587 | .idProduct = 0x480b, | |
2588 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2589 | .bInterfaceSubClass = 1, | |
2590 | .bInterfaceProtocol = 0, | |
2591 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
2d2bf2a3 LP |
2592 | /* Aveo Technology USB 2.0 Camera */ |
2593 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2594 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2595 | .idVendor = 0x1871, | |
2596 | .idProduct = 0x0306, | |
2597 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2598 | .bInterfaceSubClass = 1, | |
2599 | .bInterfaceProtocol = 0, | |
5bdf1377 LP |
2600 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2601 | | UVC_QUIRK_PROBE_EXTRAFIELDS }, | |
fe652471 LP |
2602 | /* Aveo Technology USB 2.0 Camera (Tasco USB Microscope) */ |
2603 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2604 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2605 | .idVendor = 0x1871, | |
2606 | .idProduct = 0x0516, | |
2607 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2608 | .bInterfaceSubClass = 1, | |
2609 | .bInterfaceProtocol = 0 }, | |
c0efd232 LP |
2610 | /* Ecamm Pico iMage */ |
2611 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2612 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2613 | .idVendor = 0x18cd, | |
2614 | .idProduct = 0xcafe, | |
2615 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2616 | .bInterfaceSubClass = 1, | |
2617 | .bInterfaceProtocol = 0, | |
2618 | .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, | |
2bb00fe6 LP |
2619 | /* Manta MM-353 Plako */ |
2620 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2621 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2622 | .idVendor = 0x18ec, | |
2623 | .idProduct = 0x3188, | |
2624 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2625 | .bInterfaceSubClass = 1, | |
2626 | .bInterfaceProtocol = 0, | |
2627 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
ca4a3456 LP |
2628 | /* FSC WebCam V30S */ |
2629 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2630 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2631 | .idVendor = 0x18ec, | |
2632 | .idProduct = 0x3288, | |
2633 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2634 | .bInterfaceSubClass = 1, | |
2635 | .bInterfaceProtocol = 0, | |
2636 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
1e4d05bc LP |
2637 | /* Arkmicro unbranded */ |
2638 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2639 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2640 | .idVendor = 0x18ec, | |
2641 | .idProduct = 0x3290, | |
2642 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2643 | .bInterfaceSubClass = 1, | |
2644 | .bInterfaceProtocol = 0, | |
2645 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
fd3e9f2f AC |
2646 | /* The Imaging Source USB CCD cameras */ |
2647 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2648 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2649 | .idVendor = 0x199e, | |
2650 | .idProduct = 0x8102, | |
2651 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2652 | .bInterfaceSubClass = 1, | |
2653 | .bInterfaceProtocol = 0 }, | |
c0efd232 LP |
2654 | /* Bodelin ProScopeHR */ |
2655 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2656 | | USB_DEVICE_ID_MATCH_DEV_HI | |
2657 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2658 | .idVendor = 0x19ab, | |
2659 | .idProduct = 0x1000, | |
2660 | .bcdDevice_hi = 0x0126, | |
2661 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2662 | .bInterfaceSubClass = 1, | |
2663 | .bInterfaceProtocol = 0, | |
2664 | .driver_info = UVC_QUIRK_STATUS_INTERVAL }, | |
3bc766ad LP |
2665 | /* MSI StarCam 370i */ |
2666 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2667 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2668 | .idVendor = 0x1b3b, | |
2669 | .idProduct = 0x2951, | |
2670 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2671 | .bInterfaceSubClass = 1, | |
2672 | .bInterfaceProtocol = 0, | |
2673 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2674 | /* SiGma Micro USB Web Camera */ |
2675 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2676 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2677 | .idVendor = 0x1c4f, | |
2678 | .idProduct = 0x3000, | |
2679 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2680 | .bInterfaceSubClass = 1, | |
2681 | .bInterfaceProtocol = 0, | |
2682 | .driver_info = UVC_QUIRK_PROBE_MINMAX | |
d732c44c | 2683 | | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, |
e1b78a33 PZ |
2684 | /* Oculus VR Positional Tracker DK2 */ |
2685 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2686 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2687 | .idVendor = 0x2833, | |
2688 | .idProduct = 0x0201, | |
2689 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2690 | .bInterfaceSubClass = 1, | |
2691 | .bInterfaceProtocol = 0, | |
2692 | .driver_info = UVC_QUIRK_FORCE_Y8 }, | |
03c47aae PZ |
2693 | /* Oculus VR Rift Sensor */ |
2694 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2695 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2696 | .idVendor = 0x2833, | |
2697 | .idProduct = 0x0211, | |
2698 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2699 | .bInterfaceSubClass = 1, | |
2700 | .bInterfaceProtocol = 0, | |
2701 | .driver_info = UVC_QUIRK_FORCE_Y8 }, | |
c0efd232 | 2702 | /* Generic USB Video Class */ |
8afe97be LP |
2703 | { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) }, |
2704 | { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) }, | |
c0efd232 LP |
2705 | {} |
2706 | }; | |
2707 | ||
2708 | MODULE_DEVICE_TABLE(usb, uvc_ids); | |
2709 | ||
2710 | struct uvc_driver uvc_driver = { | |
2711 | .driver = { | |
2712 | .name = "uvcvideo", | |
2713 | .probe = uvc_probe, | |
2714 | .disconnect = uvc_disconnect, | |
2715 | .suspend = uvc_suspend, | |
2716 | .resume = uvc_resume, | |
9b0ae867 | 2717 | .reset_resume = uvc_reset_resume, |
c0efd232 LP |
2718 | .id_table = uvc_ids, |
2719 | .supports_autosuspend = 1, | |
2720 | }, | |
2721 | }; | |
2722 | ||
2723 | static int __init uvc_init(void) | |
2724 | { | |
edbaa398 | 2725 | int ret; |
c0efd232 | 2726 | |
edbaa398 OR |
2727 | uvc_debugfs_init(); |
2728 | ||
2729 | ret = usb_register(&uvc_driver.driver); | |
2730 | if (ret < 0) { | |
2731 | uvc_debugfs_cleanup(); | |
2732 | return ret; | |
2733 | } | |
2734 | ||
2735 | printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); | |
2736 | return 0; | |
c0efd232 LP |
2737 | } |
2738 | ||
2739 | static void __exit uvc_cleanup(void) | |
2740 | { | |
2741 | usb_deregister(&uvc_driver.driver); | |
edbaa398 | 2742 | uvc_debugfs_cleanup(); |
c0efd232 LP |
2743 | } |
2744 | ||
2745 | module_init(uvc_init); | |
2746 | module_exit(uvc_cleanup); | |
2747 | ||
c0efd232 LP |
2748 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2749 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2750 | MODULE_LICENSE("GPL"); | |
2751 | MODULE_VERSION(DRIVER_VERSION); | |
f87086e3 | 2752 |