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