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; |
0fbd8ee6 | 35 | unsigned int uvc_no_drop_param; |
73de3592 | 36 | static unsigned int uvc_quirks_param = -1; |
c0efd232 | 37 | unsigned int uvc_trace_param; |
b232a012 | 38 | unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT; |
c0efd232 LP |
39 | |
40 | /* ------------------------------------------------------------------------ | |
2c2d264b | 41 | * Video formats |
c0efd232 LP |
42 | */ |
43 | ||
44 | static struct uvc_format_desc uvc_fmts[] = { | |
45 | { | |
46 | .name = "YUV 4:2:2 (YUYV)", | |
47 | .guid = UVC_GUID_FORMAT_YUY2, | |
48 | .fcc = V4L2_PIX_FMT_YUYV, | |
49 | }, | |
68f194e0 DR |
50 | { |
51 | .name = "YUV 4:2:2 (YUYV)", | |
52 | .guid = UVC_GUID_FORMAT_YUY2_ISIGHT, | |
53 | .fcc = V4L2_PIX_FMT_YUYV, | |
54 | }, | |
c0efd232 LP |
55 | { |
56 | .name = "YUV 4:2:0 (NV12)", | |
57 | .guid = UVC_GUID_FORMAT_NV12, | |
58 | .fcc = V4L2_PIX_FMT_NV12, | |
59 | }, | |
60 | { | |
61 | .name = "MJPEG", | |
62 | .guid = UVC_GUID_FORMAT_MJPEG, | |
63 | .fcc = V4L2_PIX_FMT_MJPEG, | |
64 | }, | |
65 | { | |
66 | .name = "YVU 4:2:0 (YV12)", | |
67 | .guid = UVC_GUID_FORMAT_YV12, | |
68 | .fcc = V4L2_PIX_FMT_YVU420, | |
69 | }, | |
70 | { | |
71 | .name = "YUV 4:2:0 (I420)", | |
72 | .guid = UVC_GUID_FORMAT_I420, | |
73 | .fcc = V4L2_PIX_FMT_YUV420, | |
74 | }, | |
7225a1dc HG |
75 | { |
76 | .name = "YUV 4:2:0 (M420)", | |
77 | .guid = UVC_GUID_FORMAT_M420, | |
78 | .fcc = V4L2_PIX_FMT_M420, | |
79 | }, | |
c0efd232 LP |
80 | { |
81 | .name = "YUV 4:2:2 (UYVY)", | |
82 | .guid = UVC_GUID_FORMAT_UYVY, | |
83 | .fcc = V4L2_PIX_FMT_UYVY, | |
84 | }, | |
85 | { | |
ca47e719 | 86 | .name = "Greyscale 8-bit (Y800)", |
c0efd232 LP |
87 | .guid = UVC_GUID_FORMAT_Y800, |
88 | .fcc = V4L2_PIX_FMT_GREY, | |
89 | }, | |
61421206 | 90 | { |
ca47e719 SM |
91 | .name = "Greyscale 8-bit (Y8 )", |
92 | .guid = UVC_GUID_FORMAT_Y8, | |
93 | .fcc = V4L2_PIX_FMT_GREY, | |
94 | }, | |
95 | { | |
96 | .name = "Greyscale 10-bit (Y10 )", | |
97 | .guid = UVC_GUID_FORMAT_Y10, | |
98 | .fcc = V4L2_PIX_FMT_Y10, | |
99 | }, | |
100 | { | |
101 | .name = "Greyscale 12-bit (Y12 )", | |
102 | .guid = UVC_GUID_FORMAT_Y12, | |
103 | .fcc = V4L2_PIX_FMT_Y12, | |
104 | }, | |
105 | { | |
106 | .name = "Greyscale 16-bit (Y16 )", | |
61421206 LP |
107 | .guid = UVC_GUID_FORMAT_Y16, |
108 | .fcc = V4L2_PIX_FMT_Y16, | |
109 | }, | |
c0efd232 | 110 | { |
e72ed08e | 111 | .name = "BGGR Bayer (BY8 )", |
c0efd232 LP |
112 | .guid = UVC_GUID_FORMAT_BY8, |
113 | .fcc = V4L2_PIX_FMT_SBGGR8, | |
114 | }, | |
e72ed08e ET |
115 | { |
116 | .name = "BGGR Bayer (BA81)", | |
117 | .guid = UVC_GUID_FORMAT_BA81, | |
118 | .fcc = V4L2_PIX_FMT_SBGGR8, | |
119 | }, | |
120 | { | |
121 | .name = "GBRG Bayer (GBRG)", | |
122 | .guid = UVC_GUID_FORMAT_GBRG, | |
123 | .fcc = V4L2_PIX_FMT_SGBRG8, | |
124 | }, | |
125 | { | |
126 | .name = "GRBG Bayer (GRBG)", | |
127 | .guid = UVC_GUID_FORMAT_GRBG, | |
128 | .fcc = V4L2_PIX_FMT_SGRBG8, | |
129 | }, | |
130 | { | |
131 | .name = "RGGB Bayer (RGGB)", | |
132 | .guid = UVC_GUID_FORMAT_RGGB, | |
133 | .fcc = V4L2_PIX_FMT_SRGGB8, | |
134 | }, | |
50791079 LP |
135 | { |
136 | .name = "RGB565", | |
137 | .guid = UVC_GUID_FORMAT_RGBP, | |
138 | .fcc = V4L2_PIX_FMT_RGB565, | |
139 | }, | |
25ad8a8d SL |
140 | { |
141 | .name = "H.264", | |
142 | .guid = UVC_GUID_FORMAT_H264, | |
143 | .fcc = V4L2_PIX_FMT_H264, | |
144 | }, | |
c0efd232 LP |
145 | }; |
146 | ||
147 | /* ------------------------------------------------------------------------ | |
148 | * Utility functions | |
149 | */ | |
150 | ||
151 | struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, | |
152 | __u8 epaddr) | |
153 | { | |
154 | struct usb_host_endpoint *ep; | |
155 | unsigned int i; | |
156 | ||
157 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { | |
158 | ep = &alts->endpoint[i]; | |
159 | if (ep->desc.bEndpointAddress == epaddr) | |
160 | return ep; | |
161 | } | |
162 | ||
163 | return NULL; | |
164 | } | |
165 | ||
166 | static struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16]) | |
167 | { | |
168 | unsigned int len = ARRAY_SIZE(uvc_fmts); | |
169 | unsigned int i; | |
170 | ||
171 | for (i = 0; i < len; ++i) { | |
172 | if (memcmp(guid, uvc_fmts[i].guid, 16) == 0) | |
173 | return &uvc_fmts[i]; | |
174 | } | |
175 | ||
176 | return NULL; | |
177 | } | |
178 | ||
179 | static __u32 uvc_colorspace(const __u8 primaries) | |
180 | { | |
181 | static const __u8 colorprimaries[] = { | |
182 | 0, | |
183 | V4L2_COLORSPACE_SRGB, | |
184 | V4L2_COLORSPACE_470_SYSTEM_M, | |
185 | V4L2_COLORSPACE_470_SYSTEM_BG, | |
186 | V4L2_COLORSPACE_SMPTE170M, | |
187 | V4L2_COLORSPACE_SMPTE240M, | |
188 | }; | |
189 | ||
190 | if (primaries < ARRAY_SIZE(colorprimaries)) | |
191 | return colorprimaries[primaries]; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | /* Simplify a fraction using a simple continued fraction decomposition. The | |
197 | * idea here is to convert fractions such as 333333/10000000 to 1/30 using | |
198 | * 32 bit arithmetic only. The algorithm is not perfect and relies upon two | |
199 | * arbitrary parameters to remove non-significative terms from the simple | |
200 | * continued fraction decomposition. Using 8 and 333 for n_terms and threshold | |
201 | * respectively seems to give nice results. | |
202 | */ | |
203 | void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, | |
204 | unsigned int n_terms, unsigned int threshold) | |
205 | { | |
206 | uint32_t *an; | |
207 | uint32_t x, y, r; | |
208 | unsigned int i, n; | |
209 | ||
210 | an = kmalloc(n_terms * sizeof *an, GFP_KERNEL); | |
211 | if (an == NULL) | |
212 | return; | |
213 | ||
214 | /* Convert the fraction to a simple continued fraction. See | |
215 | * http://mathforum.org/dr.math/faq/faq.fractions.html | |
216 | * Stop if the current term is bigger than or equal to the given | |
217 | * threshold. | |
218 | */ | |
219 | x = *numerator; | |
220 | y = *denominator; | |
221 | ||
222 | for (n = 0; n < n_terms && y != 0; ++n) { | |
223 | an[n] = x / y; | |
224 | if (an[n] >= threshold) { | |
225 | if (n < 2) | |
226 | n++; | |
227 | break; | |
228 | } | |
229 | ||
230 | r = x - an[n] * y; | |
231 | x = y; | |
232 | y = r; | |
233 | } | |
234 | ||
235 | /* Expand the simple continued fraction back to an integer fraction. */ | |
236 | x = 0; | |
237 | y = 1; | |
238 | ||
239 | for (i = n; i > 0; --i) { | |
240 | r = y; | |
241 | y = an[i-1] * y + x; | |
242 | x = r; | |
243 | } | |
244 | ||
245 | *numerator = y; | |
246 | *denominator = x; | |
247 | kfree(an); | |
248 | } | |
249 | ||
250 | /* Convert a fraction to a frame interval in 100ns multiples. The idea here is | |
251 | * to compute numerator / denominator * 10000000 using 32 bit fixed point | |
252 | * arithmetic only. | |
253 | */ | |
254 | uint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator) | |
255 | { | |
256 | uint32_t multiplier; | |
257 | ||
258 | /* Saturate the result if the operation would overflow. */ | |
259 | if (denominator == 0 || | |
260 | numerator/denominator >= ((uint32_t)-1)/10000000) | |
261 | return (uint32_t)-1; | |
262 | ||
263 | /* Divide both the denominator and the multiplier by two until | |
264 | * numerator * multiplier doesn't overflow. If anyone knows a better | |
265 | * algorithm please let me know. | |
266 | */ | |
267 | multiplier = 10000000; | |
268 | while (numerator > ((uint32_t)-1)/multiplier) { | |
269 | multiplier /= 2; | |
270 | denominator /= 2; | |
271 | } | |
272 | ||
273 | return denominator ? numerator * multiplier / denominator : 0; | |
274 | } | |
275 | ||
276 | /* ------------------------------------------------------------------------ | |
277 | * Terminal and unit management | |
278 | */ | |
279 | ||
4ffc2d89 | 280 | struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) |
c0efd232 LP |
281 | { |
282 | struct uvc_entity *entity; | |
283 | ||
284 | list_for_each_entry(entity, &dev->entities, list) { | |
285 | if (entity->id == id) | |
286 | return entity; | |
287 | } | |
288 | ||
289 | return NULL; | |
290 | } | |
291 | ||
292 | static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, | |
293 | int id, struct uvc_entity *entity) | |
294 | { | |
295 | unsigned int i; | |
296 | ||
297 | if (entity == NULL) | |
298 | entity = list_entry(&dev->entities, struct uvc_entity, list); | |
299 | ||
300 | list_for_each_entry_continue(entity, &dev->entities, list) { | |
8ca5a639 LP |
301 | for (i = 0; i < entity->bNrInPins; ++i) |
302 | if (entity->baSourceID[i] == id) | |
c0efd232 | 303 | return entity; |
c0efd232 LP |
304 | } |
305 | ||
306 | return NULL; | |
307 | } | |
308 | ||
8e113595 LP |
309 | static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) |
310 | { | |
311 | struct uvc_streaming *stream; | |
312 | ||
313 | list_for_each_entry(stream, &dev->streams, list) { | |
314 | if (stream->header.bTerminalLink == id) | |
315 | return stream; | |
316 | } | |
317 | ||
318 | return NULL; | |
319 | } | |
320 | ||
c0efd232 | 321 | /* ------------------------------------------------------------------------ |
8e113595 | 322 | * Descriptors parsing |
c0efd232 LP |
323 | */ |
324 | ||
325 | static int uvc_parse_format(struct uvc_device *dev, | |
326 | struct uvc_streaming *streaming, struct uvc_format *format, | |
327 | __u32 **intervals, unsigned char *buffer, int buflen) | |
328 | { | |
329 | struct usb_interface *intf = streaming->intf; | |
330 | struct usb_host_interface *alts = intf->cur_altsetting; | |
331 | struct uvc_format_desc *fmtdesc; | |
332 | struct uvc_frame *frame; | |
333 | const unsigned char *start = buffer; | |
334 | unsigned int interval; | |
335 | unsigned int i, n; | |
336 | __u8 ftype; | |
337 | ||
338 | format->type = buffer[2]; | |
339 | format->index = buffer[3]; | |
340 | ||
341 | switch (buffer[2]) { | |
b482d923 LP |
342 | case UVC_VS_FORMAT_UNCOMPRESSED: |
343 | case UVC_VS_FORMAT_FRAME_BASED: | |
344 | n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; | |
233548a2 | 345 | if (buflen < n) { |
b2d9cc42 | 346 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
347 | "interface %d FORMAT error\n", |
348 | dev->udev->devnum, | |
349 | alts->desc.bInterfaceNumber); | |
350 | return -EINVAL; | |
351 | } | |
352 | ||
353 | /* Find the format descriptor from its GUID. */ | |
354 | fmtdesc = uvc_format_by_guid(&buffer[5]); | |
355 | ||
356 | if (fmtdesc != NULL) { | |
d0ebf307 | 357 | strlcpy(format->name, fmtdesc->name, |
c0efd232 LP |
358 | sizeof format->name); |
359 | format->fcc = fmtdesc->fcc; | |
360 | } else { | |
36bd883e LP |
361 | uvc_printk(KERN_INFO, "Unknown video format %pUl\n", |
362 | &buffer[5]); | |
363 | snprintf(format->name, sizeof(format->name), "%pUl\n", | |
364 | &buffer[5]); | |
c0efd232 LP |
365 | format->fcc = 0; |
366 | } | |
367 | ||
368 | format->bpp = buffer[21]; | |
b482d923 LP |
369 | if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { |
370 | ftype = UVC_VS_FRAME_UNCOMPRESSED; | |
c0efd232 | 371 | } else { |
b482d923 | 372 | ftype = UVC_VS_FRAME_FRAME_BASED; |
c0efd232 LP |
373 | if (buffer[27]) |
374 | format->flags = UVC_FMT_FLAG_COMPRESSED; | |
375 | } | |
376 | break; | |
377 | ||
b482d923 | 378 | case UVC_VS_FORMAT_MJPEG: |
c0efd232 | 379 | if (buflen < 11) { |
b2d9cc42 | 380 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
381 | "interface %d FORMAT error\n", |
382 | dev->udev->devnum, | |
383 | alts->desc.bInterfaceNumber); | |
384 | return -EINVAL; | |
385 | } | |
386 | ||
d0ebf307 | 387 | strlcpy(format->name, "MJPEG", sizeof format->name); |
c0efd232 LP |
388 | format->fcc = V4L2_PIX_FMT_MJPEG; |
389 | format->flags = UVC_FMT_FLAG_COMPRESSED; | |
390 | format->bpp = 0; | |
b482d923 | 391 | ftype = UVC_VS_FRAME_MJPEG; |
c0efd232 LP |
392 | break; |
393 | ||
b482d923 | 394 | case UVC_VS_FORMAT_DV: |
c0efd232 | 395 | if (buflen < 9) { |
b2d9cc42 | 396 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
397 | "interface %d FORMAT error\n", |
398 | dev->udev->devnum, | |
399 | alts->desc.bInterfaceNumber); | |
400 | return -EINVAL; | |
401 | } | |
402 | ||
403 | switch (buffer[8] & 0x7f) { | |
404 | case 0: | |
d0ebf307 | 405 | strlcpy(format->name, "SD-DV", sizeof format->name); |
c0efd232 LP |
406 | break; |
407 | case 1: | |
d0ebf307 | 408 | strlcpy(format->name, "SDL-DV", sizeof format->name); |
c0efd232 LP |
409 | break; |
410 | case 2: | |
d0ebf307 | 411 | strlcpy(format->name, "HD-DV", sizeof format->name); |
c0efd232 LP |
412 | break; |
413 | default: | |
b2d9cc42 | 414 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
415 | "interface %d: unknown DV format %u\n", |
416 | dev->udev->devnum, | |
417 | alts->desc.bInterfaceNumber, buffer[8]); | |
418 | return -EINVAL; | |
419 | } | |
420 | ||
d0ebf307 | 421 | strlcat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz", |
c0efd232 LP |
422 | sizeof format->name); |
423 | ||
424 | format->fcc = V4L2_PIX_FMT_DV; | |
425 | format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; | |
426 | format->bpp = 0; | |
427 | ftype = 0; | |
428 | ||
429 | /* Create a dummy frame descriptor. */ | |
430 | frame = &format->frame[0]; | |
431 | memset(&format->frame[0], 0, sizeof format->frame[0]); | |
432 | frame->bFrameIntervalType = 1; | |
433 | frame->dwDefaultFrameInterval = 1; | |
434 | frame->dwFrameInterval = *intervals; | |
435 | *(*intervals)++ = 1; | |
436 | format->nframes = 1; | |
437 | break; | |
438 | ||
b482d923 LP |
439 | case UVC_VS_FORMAT_MPEG2TS: |
440 | case UVC_VS_FORMAT_STREAM_BASED: | |
c0efd232 LP |
441 | /* Not supported yet. */ |
442 | default: | |
b2d9cc42 | 443 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
444 | "interface %d unsupported format %u\n", |
445 | dev->udev->devnum, alts->desc.bInterfaceNumber, | |
446 | buffer[2]); | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
450 | uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name); | |
451 | ||
452 | buflen -= buffer[0]; | |
453 | buffer += buffer[0]; | |
454 | ||
455 | /* Parse the frame descriptors. Only uncompressed, MJPEG and frame | |
456 | * based formats have frame descriptors. | |
457 | */ | |
c4ed8c66 LP |
458 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
459 | buffer[2] == ftype) { | |
078f8947 | 460 | frame = &format->frame[format->nframes]; |
b482d923 | 461 | if (ftype != UVC_VS_FRAME_FRAME_BASED) |
c0efd232 LP |
462 | n = buflen > 25 ? buffer[25] : 0; |
463 | else | |
464 | n = buflen > 21 ? buffer[21] : 0; | |
465 | ||
466 | n = n ? n : 3; | |
467 | ||
468 | if (buflen < 26 + 4*n) { | |
b2d9cc42 | 469 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
470 | "interface %d FRAME error\n", dev->udev->devnum, |
471 | alts->desc.bInterfaceNumber); | |
472 | return -EINVAL; | |
473 | } | |
474 | ||
475 | frame->bFrameIndex = buffer[3]; | |
476 | frame->bmCapabilities = buffer[4]; | |
9bc6218d MH |
477 | frame->wWidth = get_unaligned_le16(&buffer[5]); |
478 | frame->wHeight = get_unaligned_le16(&buffer[7]); | |
479 | frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); | |
480 | frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); | |
b482d923 | 481 | if (ftype != UVC_VS_FRAME_FRAME_BASED) { |
c0efd232 | 482 | frame->dwMaxVideoFrameBufferSize = |
9bc6218d | 483 | get_unaligned_le32(&buffer[17]); |
c0efd232 | 484 | frame->dwDefaultFrameInterval = |
9bc6218d | 485 | get_unaligned_le32(&buffer[21]); |
c0efd232 LP |
486 | frame->bFrameIntervalType = buffer[25]; |
487 | } else { | |
488 | frame->dwMaxVideoFrameBufferSize = 0; | |
489 | frame->dwDefaultFrameInterval = | |
9bc6218d | 490 | get_unaligned_le32(&buffer[17]); |
c0efd232 LP |
491 | frame->bFrameIntervalType = buffer[21]; |
492 | } | |
493 | frame->dwFrameInterval = *intervals; | |
494 | ||
495 | /* Several UVC chipsets screw up dwMaxVideoFrameBufferSize | |
496 | * completely. Observed behaviours range from setting the | |
2c2d264b | 497 | * value to 1.1x the actual frame size to hardwiring the |
c0efd232 LP |
498 | * 16 low bits to 0. This results in a higher than necessary |
499 | * memory usage as well as a wrong image size information. For | |
500 | * uncompressed formats this can be fixed by computing the | |
501 | * value from the frame size. | |
502 | */ | |
503 | if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) | |
504 | frame->dwMaxVideoFrameBufferSize = format->bpp | |
505 | * frame->wWidth * frame->wHeight / 8; | |
506 | ||
507 | /* Some bogus devices report dwMinFrameInterval equal to | |
508 | * dwMaxFrameInterval and have dwFrameIntervalStep set to | |
509 | * zero. Setting all null intervals to 1 fixes the problem and | |
2c2d264b | 510 | * some other divisions by zero that could happen. |
c0efd232 LP |
511 | */ |
512 | for (i = 0; i < n; ++i) { | |
9bc6218d | 513 | interval = get_unaligned_le32(&buffer[26+4*i]); |
c0efd232 LP |
514 | *(*intervals)++ = interval ? interval : 1; |
515 | } | |
516 | ||
517 | /* Make sure that the default frame interval stays between | |
518 | * the boundaries. | |
519 | */ | |
520 | n -= frame->bFrameIntervalType ? 1 : 2; | |
521 | frame->dwDefaultFrameInterval = | |
522 | min(frame->dwFrameInterval[n], | |
523 | max(frame->dwFrameInterval[0], | |
524 | frame->dwDefaultFrameInterval)); | |
525 | ||
86d8b6ab LP |
526 | if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { |
527 | frame->bFrameIntervalType = 1; | |
528 | frame->dwFrameInterval[0] = | |
529 | frame->dwDefaultFrameInterval; | |
530 | } | |
531 | ||
c0efd232 LP |
532 | uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n", |
533 | frame->wWidth, frame->wHeight, | |
534 | 10000000/frame->dwDefaultFrameInterval, | |
535 | (100000000/frame->dwDefaultFrameInterval)%10); | |
536 | ||
078f8947 | 537 | format->nframes++; |
c0efd232 LP |
538 | buflen -= buffer[0]; |
539 | buffer += buffer[0]; | |
540 | } | |
541 | ||
c4ed8c66 LP |
542 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
543 | buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { | |
c0efd232 LP |
544 | buflen -= buffer[0]; |
545 | buffer += buffer[0]; | |
546 | } | |
547 | ||
c4ed8c66 LP |
548 | if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
549 | buffer[2] == UVC_VS_COLORFORMAT) { | |
c0efd232 | 550 | if (buflen < 6) { |
b2d9cc42 | 551 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
c0efd232 LP |
552 | "interface %d COLORFORMAT error\n", |
553 | dev->udev->devnum, | |
554 | alts->desc.bInterfaceNumber); | |
555 | return -EINVAL; | |
556 | } | |
557 | ||
558 | format->colorspace = uvc_colorspace(buffer[3]); | |
559 | ||
560 | buflen -= buffer[0]; | |
561 | buffer += buffer[0]; | |
562 | } | |
563 | ||
564 | return buffer - start; | |
565 | } | |
566 | ||
567 | static int uvc_parse_streaming(struct uvc_device *dev, | |
568 | struct usb_interface *intf) | |
569 | { | |
570 | struct uvc_streaming *streaming = NULL; | |
571 | struct uvc_format *format; | |
572 | struct uvc_frame *frame; | |
573 | struct usb_host_interface *alts = &intf->altsetting[0]; | |
574 | unsigned char *_buffer, *buffer = alts->extra; | |
575 | int _buflen, buflen = alts->extralen; | |
576 | unsigned int nformats = 0, nframes = 0, nintervals = 0; | |
577 | unsigned int size, i, n, p; | |
578 | __u32 *interval; | |
579 | __u16 psize; | |
580 | int ret = -EINVAL; | |
581 | ||
582 | if (intf->cur_altsetting->desc.bInterfaceSubClass | |
b482d923 | 583 | != UVC_SC_VIDEOSTREAMING) { |
c0efd232 LP |
584 | uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " |
585 | "video streaming interface\n", dev->udev->devnum, | |
586 | intf->altsetting[0].desc.bInterfaceNumber); | |
587 | return -EINVAL; | |
588 | } | |
589 | ||
590 | if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { | |
591 | uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already " | |
592 | "claimed\n", dev->udev->devnum, | |
593 | intf->altsetting[0].desc.bInterfaceNumber); | |
594 | return -EINVAL; | |
595 | } | |
596 | ||
597 | streaming = kzalloc(sizeof *streaming, GFP_KERNEL); | |
598 | if (streaming == NULL) { | |
599 | usb_driver_release_interface(&uvc_driver.driver, intf); | |
600 | return -EINVAL; | |
601 | } | |
602 | ||
603 | mutex_init(&streaming->mutex); | |
35f02a68 | 604 | streaming->dev = dev; |
c0efd232 LP |
605 | streaming->intf = usb_get_intf(intf); |
606 | streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
607 | ||
608 | /* The Pico iMage webcam has its class-specific interface descriptors | |
609 | * after the endpoint descriptors. | |
610 | */ | |
611 | if (buflen == 0) { | |
612 | for (i = 0; i < alts->desc.bNumEndpoints; ++i) { | |
613 | struct usb_host_endpoint *ep = &alts->endpoint[i]; | |
614 | ||
615 | if (ep->extralen == 0) | |
616 | continue; | |
617 | ||
618 | if (ep->extralen > 2 && | |
619 | ep->extra[1] == USB_DT_CS_INTERFACE) { | |
620 | uvc_trace(UVC_TRACE_DESCR, "trying extra data " | |
621 | "from endpoint %u.\n", i); | |
622 | buffer = alts->endpoint[i].extra; | |
623 | buflen = alts->endpoint[i].extralen; | |
624 | break; | |
625 | } | |
626 | } | |
627 | } | |
628 | ||
629 | /* Skip the standard interface descriptors. */ | |
630 | while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { | |
631 | buflen -= buffer[0]; | |
632 | buffer += buffer[0]; | |
633 | } | |
634 | ||
635 | if (buflen <= 2) { | |
636 | uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming " | |
637 | "interface descriptors found.\n"); | |
638 | goto error; | |
639 | } | |
640 | ||
641 | /* Parse the header descriptor. */ | |
ff924203 | 642 | switch (buffer[2]) { |
b482d923 | 643 | case UVC_VS_OUTPUT_HEADER: |
ff924203 LP |
644 | streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
645 | size = 9; | |
646 | break; | |
647 | ||
b482d923 | 648 | case UVC_VS_INPUT_HEADER: |
ff924203 LP |
649 | streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
650 | size = 13; | |
651 | break; | |
652 | ||
653 | default: | |
c0efd232 | 654 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " |
ff924203 LP |
655 | "%d HEADER descriptor not found.\n", dev->udev->devnum, |
656 | alts->desc.bInterfaceNumber); | |
c0efd232 | 657 | goto error; |
ff924203 | 658 | } |
c0efd232 | 659 | |
ff924203 LP |
660 | p = buflen >= 4 ? buffer[3] : 0; |
661 | n = buflen >= size ? buffer[size-1] : 0; | |
662 | ||
663 | if (buflen < size + p*n) { | |
664 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " | |
665 | "interface %d HEADER descriptor is invalid.\n", | |
666 | dev->udev->devnum, alts->desc.bInterfaceNumber); | |
667 | goto error; | |
668 | } | |
c0efd232 | 669 | |
ff924203 LP |
670 | streaming->header.bNumFormats = p; |
671 | streaming->header.bEndpointAddress = buffer[6]; | |
b482d923 | 672 | if (buffer[2] == UVC_VS_INPUT_HEADER) { |
c0efd232 LP |
673 | streaming->header.bmInfo = buffer[7]; |
674 | streaming->header.bTerminalLink = buffer[8]; | |
675 | streaming->header.bStillCaptureMethod = buffer[9]; | |
676 | streaming->header.bTriggerSupport = buffer[10]; | |
677 | streaming->header.bTriggerUsage = buffer[11]; | |
c0efd232 | 678 | } else { |
ff924203 LP |
679 | streaming->header.bTerminalLink = buffer[7]; |
680 | } | |
681 | streaming->header.bControlSize = n; | |
682 | ||
0b21d55f JL |
683 | streaming->header.bmaControls = kmemdup(&buffer[size], p * n, |
684 | GFP_KERNEL); | |
ff924203 LP |
685 | if (streaming->header.bmaControls == NULL) { |
686 | ret = -ENOMEM; | |
c0efd232 LP |
687 | goto error; |
688 | } | |
689 | ||
690 | buflen -= buffer[0]; | |
691 | buffer += buffer[0]; | |
692 | ||
693 | _buffer = buffer; | |
694 | _buflen = buflen; | |
695 | ||
696 | /* Count the format and frame descriptors. */ | |
042e143e | 697 | while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { |
c0efd232 | 698 | switch (_buffer[2]) { |
b482d923 LP |
699 | case UVC_VS_FORMAT_UNCOMPRESSED: |
700 | case UVC_VS_FORMAT_MJPEG: | |
701 | case UVC_VS_FORMAT_FRAME_BASED: | |
c0efd232 LP |
702 | nformats++; |
703 | break; | |
704 | ||
b482d923 | 705 | case UVC_VS_FORMAT_DV: |
c0efd232 LP |
706 | /* DV format has no frame descriptor. We will create a |
707 | * dummy frame descriptor with a dummy frame interval. | |
708 | */ | |
709 | nformats++; | |
710 | nframes++; | |
711 | nintervals++; | |
712 | break; | |
713 | ||
b482d923 LP |
714 | case UVC_VS_FORMAT_MPEG2TS: |
715 | case UVC_VS_FORMAT_STREAM_BASED: | |
c0efd232 LP |
716 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " |
717 | "interface %d FORMAT %u is not supported.\n", | |
718 | dev->udev->devnum, | |
719 | alts->desc.bInterfaceNumber, _buffer[2]); | |
720 | break; | |
721 | ||
b482d923 LP |
722 | case UVC_VS_FRAME_UNCOMPRESSED: |
723 | case UVC_VS_FRAME_MJPEG: | |
c0efd232 LP |
724 | nframes++; |
725 | if (_buflen > 25) | |
726 | nintervals += _buffer[25] ? _buffer[25] : 3; | |
727 | break; | |
728 | ||
b482d923 | 729 | case UVC_VS_FRAME_FRAME_BASED: |
c0efd232 LP |
730 | nframes++; |
731 | if (_buflen > 21) | |
732 | nintervals += _buffer[21] ? _buffer[21] : 3; | |
733 | break; | |
734 | } | |
735 | ||
736 | _buflen -= _buffer[0]; | |
737 | _buffer += _buffer[0]; | |
738 | } | |
739 | ||
740 | if (nformats == 0) { | |
741 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " | |
742 | "%d has no supported formats defined.\n", | |
743 | dev->udev->devnum, alts->desc.bInterfaceNumber); | |
744 | goto error; | |
745 | } | |
746 | ||
747 | size = nformats * sizeof *format + nframes * sizeof *frame | |
748 | + nintervals * sizeof *interval; | |
749 | format = kzalloc(size, GFP_KERNEL); | |
750 | if (format == NULL) { | |
751 | ret = -ENOMEM; | |
752 | goto error; | |
753 | } | |
754 | ||
755 | frame = (struct uvc_frame *)&format[nformats]; | |
756 | interval = (__u32 *)&frame[nframes]; | |
757 | ||
758 | streaming->format = format; | |
759 | streaming->nformats = nformats; | |
760 | ||
761 | /* Parse the format descriptors. */ | |
042e143e | 762 | while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { |
c0efd232 | 763 | switch (buffer[2]) { |
b482d923 LP |
764 | case UVC_VS_FORMAT_UNCOMPRESSED: |
765 | case UVC_VS_FORMAT_MJPEG: | |
766 | case UVC_VS_FORMAT_DV: | |
767 | case UVC_VS_FORMAT_FRAME_BASED: | |
c0efd232 LP |
768 | format->frame = frame; |
769 | ret = uvc_parse_format(dev, streaming, format, | |
770 | &interval, buffer, buflen); | |
771 | if (ret < 0) | |
772 | goto error; | |
773 | ||
774 | frame += format->nframes; | |
775 | format++; | |
776 | ||
777 | buflen -= ret; | |
778 | buffer += ret; | |
779 | continue; | |
780 | ||
781 | default: | |
782 | break; | |
783 | } | |
784 | ||
785 | buflen -= buffer[0]; | |
786 | buffer += buffer[0]; | |
787 | } | |
788 | ||
c4ed8c66 LP |
789 | if (buflen) |
790 | uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " | |
791 | "%d has %u bytes of trailing descriptor garbage.\n", | |
792 | dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); | |
793 | ||
c0efd232 LP |
794 | /* Parse the alternate settings to find the maximum bandwidth. */ |
795 | for (i = 0; i < intf->num_altsetting; ++i) { | |
796 | struct usb_host_endpoint *ep; | |
797 | alts = &intf->altsetting[i]; | |
798 | ep = uvc_find_endpoint(alts, | |
799 | streaming->header.bEndpointAddress); | |
800 | if (ep == NULL) | |
801 | continue; | |
802 | ||
803 | psize = le16_to_cpu(ep->desc.wMaxPacketSize); | |
804 | psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); | |
805 | if (psize > streaming->maxpsize) | |
806 | streaming->maxpsize = psize; | |
807 | } | |
808 | ||
35f02a68 | 809 | list_add_tail(&streaming->list, &dev->streams); |
c0efd232 LP |
810 | return 0; |
811 | ||
812 | error: | |
813 | usb_driver_release_interface(&uvc_driver.driver, intf); | |
814 | usb_put_intf(intf); | |
815 | kfree(streaming->format); | |
816 | kfree(streaming->header.bmaControls); | |
817 | kfree(streaming); | |
818 | return ret; | |
819 | } | |
820 | ||
8ca5a639 LP |
821 | static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, |
822 | unsigned int num_pads, unsigned int extra_size) | |
823 | { | |
824 | struct uvc_entity *entity; | |
825 | unsigned int num_inputs; | |
826 | unsigned int size; | |
4ffc2d89 | 827 | unsigned int i; |
8ca5a639 | 828 | |
4ffc2d89 | 829 | extra_size = ALIGN(extra_size, sizeof(*entity->pads)); |
8ca5a639 | 830 | num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; |
4ffc2d89 LP |
831 | size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads |
832 | + num_inputs; | |
8ca5a639 LP |
833 | entity = kzalloc(size, GFP_KERNEL); |
834 | if (entity == NULL) | |
835 | return NULL; | |
836 | ||
837 | entity->id = id; | |
838 | entity->type = type; | |
839 | ||
4ffc2d89 LP |
840 | entity->num_links = 0; |
841 | entity->num_pads = num_pads; | |
842 | entity->pads = ((void *)(entity + 1)) + extra_size; | |
843 | ||
844 | for (i = 0; i < num_inputs; ++i) | |
845 | entity->pads[i].flags = MEDIA_PAD_FL_SINK; | |
846 | if (!UVC_ENTITY_IS_OTERM(entity)) | |
847 | entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; | |
848 | ||
8ca5a639 | 849 | entity->bNrInPins = num_inputs; |
4ffc2d89 | 850 | entity->baSourceID = (__u8 *)(&entity->pads[num_pads]); |
8ca5a639 LP |
851 | |
852 | return entity; | |
853 | } | |
854 | ||
c0efd232 LP |
855 | /* Parse vendor-specific extensions. */ |
856 | static int uvc_parse_vendor_control(struct uvc_device *dev, | |
857 | const unsigned char *buffer, int buflen) | |
858 | { | |
859 | struct usb_device *udev = dev->udev; | |
860 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
861 | struct uvc_entity *unit; | |
862 | unsigned int n, p; | |
863 | int handled = 0; | |
864 | ||
865 | switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { | |
866 | case 0x046d: /* Logitech */ | |
867 | if (buffer[1] != 0x41 || buffer[2] != 0x01) | |
868 | break; | |
869 | ||
870 | /* Logitech implements several vendor specific functions | |
871 | * through vendor specific extension units (LXU). | |
872 | * | |
873 | * The LXU descriptors are similar to XU descriptors | |
874 | * (see "USB Device Video Class for Video Devices", section | |
875 | * 3.7.2.6 "Extension Unit Descriptor") with the following | |
876 | * differences: | |
877 | * | |
878 | * ---------------------------------------------------------- | |
879 | * 0 bLength 1 Number | |
880 | * Size of this descriptor, in bytes: 24+p+n*2 | |
881 | * ---------------------------------------------------------- | |
882 | * 23+p+n bmControlsType N Bitmap | |
883 | * Individual bits in the set are defined: | |
884 | * 0: Absolute | |
885 | * 1: Relative | |
886 | * | |
887 | * This bitset is mapped exactly the same as bmControls. | |
888 | * ---------------------------------------------------------- | |
889 | * 23+p+n*2 bReserved 1 Boolean | |
890 | * ---------------------------------------------------------- | |
891 | * 24+p+n*2 iExtension 1 Index | |
892 | * Index of a string descriptor that describes this | |
893 | * extension unit. | |
894 | * ---------------------------------------------------------- | |
895 | */ | |
896 | p = buflen >= 22 ? buffer[21] : 0; | |
897 | n = buflen >= 25 + p ? buffer[22+p] : 0; | |
898 | ||
899 | if (buflen < 25 + p + 2*n) { | |
900 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
901 | "interface %d EXTENSION_UNIT error\n", | |
902 | udev->devnum, alts->desc.bInterfaceNumber); | |
903 | break; | |
904 | } | |
905 | ||
8ca5a639 LP |
906 | unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3], |
907 | p + 1, 2*n); | |
c0efd232 LP |
908 | if (unit == NULL) |
909 | return -ENOMEM; | |
910 | ||
c0efd232 LP |
911 | memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); |
912 | unit->extension.bNumControls = buffer[20]; | |
8ca5a639 | 913 | memcpy(unit->baSourceID, &buffer[22], p); |
c0efd232 | 914 | unit->extension.bControlSize = buffer[22+p]; |
8ca5a639 LP |
915 | unit->extension.bmControls = (__u8 *)unit + sizeof(*unit); |
916 | unit->extension.bmControlsType = (__u8 *)unit + sizeof(*unit) | |
917 | + n; | |
c0efd232 LP |
918 | memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); |
919 | ||
920 | if (buffer[24+p+2*n] != 0) | |
921 | usb_string(udev, buffer[24+p+2*n], unit->name, | |
922 | sizeof unit->name); | |
923 | else | |
924 | sprintf(unit->name, "Extension %u", buffer[3]); | |
925 | ||
926 | list_add_tail(&unit->list, &dev->entities); | |
927 | handled = 1; | |
928 | break; | |
929 | } | |
930 | ||
931 | return handled; | |
932 | } | |
933 | ||
934 | static int uvc_parse_standard_control(struct uvc_device *dev, | |
935 | const unsigned char *buffer, int buflen) | |
936 | { | |
937 | struct usb_device *udev = dev->udev; | |
938 | struct uvc_entity *unit, *term; | |
939 | struct usb_interface *intf; | |
940 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
941 | unsigned int i, n, p, len; | |
942 | __u16 type; | |
943 | ||
944 | switch (buffer[2]) { | |
b482d923 | 945 | case UVC_VC_HEADER: |
c0efd232 LP |
946 | n = buflen >= 12 ? buffer[11] : 0; |
947 | ||
daf41ac2 | 948 | if (buflen < 12 + n) { |
c0efd232 LP |
949 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " |
950 | "interface %d HEADER error\n", udev->devnum, | |
951 | alts->desc.bInterfaceNumber); | |
952 | return -EINVAL; | |
953 | } | |
954 | ||
9bc6218d MH |
955 | dev->uvc_version = get_unaligned_le16(&buffer[3]); |
956 | dev->clock_frequency = get_unaligned_le32(&buffer[7]); | |
c0efd232 LP |
957 | |
958 | /* Parse all USB Video Streaming interfaces. */ | |
959 | for (i = 0; i < n; ++i) { | |
960 | intf = usb_ifnum_to_if(udev, buffer[12+i]); | |
961 | if (intf == NULL) { | |
962 | uvc_trace(UVC_TRACE_DESCR, "device %d " | |
963 | "interface %d doesn't exists\n", | |
964 | udev->devnum, i); | |
965 | continue; | |
966 | } | |
967 | ||
968 | uvc_parse_streaming(dev, intf); | |
969 | } | |
970 | break; | |
971 | ||
b482d923 | 972 | case UVC_VC_INPUT_TERMINAL: |
c0efd232 LP |
973 | if (buflen < 8) { |
974 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
975 | "interface %d INPUT_TERMINAL error\n", | |
976 | udev->devnum, alts->desc.bInterfaceNumber); | |
977 | return -EINVAL; | |
978 | } | |
979 | ||
980 | /* Make sure the terminal type MSB is not null, otherwise it | |
981 | * could be confused with a unit. | |
982 | */ | |
9bc6218d | 983 | type = get_unaligned_le16(&buffer[4]); |
c0efd232 LP |
984 | if ((type & 0xff00) == 0) { |
985 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
986 | "interface %d INPUT_TERMINAL %d has invalid " | |
987 | "type 0x%04x, skipping\n", udev->devnum, | |
988 | alts->desc.bInterfaceNumber, | |
989 | buffer[3], type); | |
990 | return 0; | |
991 | } | |
992 | ||
993 | n = 0; | |
994 | p = 0; | |
995 | len = 8; | |
996 | ||
b482d923 | 997 | if (type == UVC_ITT_CAMERA) { |
c0efd232 LP |
998 | n = buflen >= 15 ? buffer[14] : 0; |
999 | len = 15; | |
1000 | ||
b482d923 | 1001 | } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
c0efd232 LP |
1002 | n = buflen >= 9 ? buffer[8] : 0; |
1003 | p = buflen >= 10 + n ? buffer[9+n] : 0; | |
1004 | len = 10; | |
1005 | } | |
1006 | ||
1007 | if (buflen < len + n + p) { | |
1008 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1009 | "interface %d INPUT_TERMINAL error\n", | |
1010 | udev->devnum, alts->desc.bInterfaceNumber); | |
1011 | return -EINVAL; | |
1012 | } | |
1013 | ||
8ca5a639 LP |
1014 | term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3], |
1015 | 1, n + p); | |
c0efd232 LP |
1016 | if (term == NULL) |
1017 | return -ENOMEM; | |
1018 | ||
b482d923 | 1019 | if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { |
c0efd232 LP |
1020 | term->camera.bControlSize = n; |
1021 | term->camera.bmControls = (__u8 *)term + sizeof *term; | |
1022 | term->camera.wObjectiveFocalLengthMin = | |
9bc6218d | 1023 | get_unaligned_le16(&buffer[8]); |
c0efd232 | 1024 | term->camera.wObjectiveFocalLengthMax = |
9bc6218d | 1025 | get_unaligned_le16(&buffer[10]); |
c0efd232 | 1026 | term->camera.wOcularFocalLength = |
9bc6218d | 1027 | get_unaligned_le16(&buffer[12]); |
c0efd232 | 1028 | memcpy(term->camera.bmControls, &buffer[15], n); |
b482d923 LP |
1029 | } else if (UVC_ENTITY_TYPE(term) == |
1030 | UVC_ITT_MEDIA_TRANSPORT_INPUT) { | |
c0efd232 LP |
1031 | term->media.bControlSize = n; |
1032 | term->media.bmControls = (__u8 *)term + sizeof *term; | |
1033 | term->media.bTransportModeSize = p; | |
1034 | term->media.bmTransportModes = (__u8 *)term | |
1035 | + sizeof *term + n; | |
1036 | memcpy(term->media.bmControls, &buffer[9], n); | |
1037 | memcpy(term->media.bmTransportModes, &buffer[10+n], p); | |
1038 | } | |
1039 | ||
1040 | if (buffer[7] != 0) | |
1041 | usb_string(udev, buffer[7], term->name, | |
1042 | sizeof term->name); | |
b482d923 | 1043 | else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) |
c0efd232 | 1044 | sprintf(term->name, "Camera %u", buffer[3]); |
b482d923 | 1045 | else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) |
c0efd232 LP |
1046 | sprintf(term->name, "Media %u", buffer[3]); |
1047 | else | |
1048 | sprintf(term->name, "Input %u", buffer[3]); | |
1049 | ||
1050 | list_add_tail(&term->list, &dev->entities); | |
1051 | break; | |
1052 | ||
b482d923 | 1053 | case UVC_VC_OUTPUT_TERMINAL: |
c0efd232 LP |
1054 | if (buflen < 9) { |
1055 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1056 | "interface %d OUTPUT_TERMINAL error\n", | |
1057 | udev->devnum, alts->desc.bInterfaceNumber); | |
1058 | return -EINVAL; | |
1059 | } | |
1060 | ||
1061 | /* Make sure the terminal type MSB is not null, otherwise it | |
1062 | * could be confused with a unit. | |
1063 | */ | |
9bc6218d | 1064 | type = get_unaligned_le16(&buffer[4]); |
c0efd232 LP |
1065 | if ((type & 0xff00) == 0) { |
1066 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1067 | "interface %d OUTPUT_TERMINAL %d has invalid " | |
1068 | "type 0x%04x, skipping\n", udev->devnum, | |
1069 | alts->desc.bInterfaceNumber, buffer[3], type); | |
1070 | return 0; | |
1071 | } | |
1072 | ||
8ca5a639 LP |
1073 | term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3], |
1074 | 1, 0); | |
c0efd232 LP |
1075 | if (term == NULL) |
1076 | return -ENOMEM; | |
1077 | ||
8ca5a639 | 1078 | memcpy(term->baSourceID, &buffer[7], 1); |
c0efd232 LP |
1079 | |
1080 | if (buffer[8] != 0) | |
1081 | usb_string(udev, buffer[8], term->name, | |
1082 | sizeof term->name); | |
1083 | else | |
1084 | sprintf(term->name, "Output %u", buffer[3]); | |
1085 | ||
1086 | list_add_tail(&term->list, &dev->entities); | |
1087 | break; | |
1088 | ||
b482d923 | 1089 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 LP |
1090 | p = buflen >= 5 ? buffer[4] : 0; |
1091 | ||
1092 | if (buflen < 5 || buflen < 6 + p) { | |
1093 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1094 | "interface %d SELECTOR_UNIT error\n", | |
1095 | udev->devnum, alts->desc.bInterfaceNumber); | |
1096 | return -EINVAL; | |
1097 | } | |
1098 | ||
8ca5a639 | 1099 | unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0); |
c0efd232 LP |
1100 | if (unit == NULL) |
1101 | return -ENOMEM; | |
1102 | ||
8ca5a639 | 1103 | memcpy(unit->baSourceID, &buffer[5], p); |
c0efd232 LP |
1104 | |
1105 | if (buffer[5+p] != 0) | |
1106 | usb_string(udev, buffer[5+p], unit->name, | |
1107 | sizeof unit->name); | |
1108 | else | |
1109 | sprintf(unit->name, "Selector %u", buffer[3]); | |
1110 | ||
1111 | list_add_tail(&unit->list, &dev->entities); | |
1112 | break; | |
1113 | ||
b482d923 | 1114 | case UVC_VC_PROCESSING_UNIT: |
c0efd232 LP |
1115 | n = buflen >= 8 ? buffer[7] : 0; |
1116 | p = dev->uvc_version >= 0x0110 ? 10 : 9; | |
1117 | ||
1118 | if (buflen < p + n) { | |
1119 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1120 | "interface %d PROCESSING_UNIT error\n", | |
1121 | udev->devnum, alts->desc.bInterfaceNumber); | |
1122 | return -EINVAL; | |
1123 | } | |
1124 | ||
8ca5a639 | 1125 | unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n); |
c0efd232 LP |
1126 | if (unit == NULL) |
1127 | return -ENOMEM; | |
1128 | ||
8ca5a639 | 1129 | memcpy(unit->baSourceID, &buffer[4], 1); |
c0efd232 | 1130 | unit->processing.wMaxMultiplier = |
9bc6218d | 1131 | get_unaligned_le16(&buffer[5]); |
c0efd232 LP |
1132 | unit->processing.bControlSize = buffer[7]; |
1133 | unit->processing.bmControls = (__u8 *)unit + sizeof *unit; | |
1134 | memcpy(unit->processing.bmControls, &buffer[8], n); | |
1135 | if (dev->uvc_version >= 0x0110) | |
1136 | unit->processing.bmVideoStandards = buffer[9+n]; | |
1137 | ||
1138 | if (buffer[8+n] != 0) | |
1139 | usb_string(udev, buffer[8+n], unit->name, | |
1140 | sizeof unit->name); | |
1141 | else | |
1142 | sprintf(unit->name, "Processing %u", buffer[3]); | |
1143 | ||
1144 | list_add_tail(&unit->list, &dev->entities); | |
1145 | break; | |
1146 | ||
b482d923 | 1147 | case UVC_VC_EXTENSION_UNIT: |
c0efd232 LP |
1148 | p = buflen >= 22 ? buffer[21] : 0; |
1149 | n = buflen >= 24 + p ? buffer[22+p] : 0; | |
1150 | ||
1151 | if (buflen < 24 + p + n) { | |
1152 | uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " | |
1153 | "interface %d EXTENSION_UNIT error\n", | |
1154 | udev->devnum, alts->desc.bInterfaceNumber); | |
1155 | return -EINVAL; | |
1156 | } | |
1157 | ||
8ca5a639 | 1158 | unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n); |
c0efd232 LP |
1159 | if (unit == NULL) |
1160 | return -ENOMEM; | |
1161 | ||
c0efd232 LP |
1162 | memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); |
1163 | unit->extension.bNumControls = buffer[20]; | |
8ca5a639 | 1164 | memcpy(unit->baSourceID, &buffer[22], p); |
c0efd232 | 1165 | unit->extension.bControlSize = buffer[22+p]; |
8ca5a639 | 1166 | unit->extension.bmControls = (__u8 *)unit + sizeof *unit; |
c0efd232 LP |
1167 | memcpy(unit->extension.bmControls, &buffer[23+p], n); |
1168 | ||
1169 | if (buffer[23+p+n] != 0) | |
1170 | usb_string(udev, buffer[23+p+n], unit->name, | |
1171 | sizeof unit->name); | |
1172 | else | |
1173 | sprintf(unit->name, "Extension %u", buffer[3]); | |
1174 | ||
1175 | list_add_tail(&unit->list, &dev->entities); | |
1176 | break; | |
1177 | ||
1178 | default: | |
1179 | uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE " | |
1180 | "descriptor (%u)\n", buffer[2]); | |
1181 | break; | |
1182 | } | |
1183 | ||
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | static int uvc_parse_control(struct uvc_device *dev) | |
1188 | { | |
1189 | struct usb_host_interface *alts = dev->intf->cur_altsetting; | |
1190 | unsigned char *buffer = alts->extra; | |
1191 | int buflen = alts->extralen; | |
1192 | int ret; | |
1193 | ||
1194 | /* Parse the default alternate setting only, as the UVC specification | |
1195 | * defines a single alternate setting, the default alternate setting | |
1196 | * zero. | |
1197 | */ | |
1198 | ||
1199 | while (buflen > 2) { | |
1200 | if (uvc_parse_vendor_control(dev, buffer, buflen) || | |
1201 | buffer[1] != USB_DT_CS_INTERFACE) | |
1202 | goto next_descriptor; | |
1203 | ||
1204 | if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0) | |
1205 | return ret; | |
1206 | ||
1207 | next_descriptor: | |
1208 | buflen -= buffer[0]; | |
1209 | buffer += buffer[0]; | |
1210 | } | |
1211 | ||
538e7a00 LP |
1212 | /* Check if the optional status endpoint is present. Built-in iSight |
1213 | * webcams have an interrupt endpoint but spit proprietary data that | |
1214 | * don't conform to the UVC status endpoint messages. Don't try to | |
1215 | * handle the interrupt endpoint for those cameras. | |
1216 | */ | |
1217 | if (alts->desc.bNumEndpoints == 1 && | |
1218 | !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) { | |
c0efd232 LP |
1219 | struct usb_host_endpoint *ep = &alts->endpoint[0]; |
1220 | struct usb_endpoint_descriptor *desc = &ep->desc; | |
1221 | ||
1222 | if (usb_endpoint_is_int_in(desc) && | |
1223 | le16_to_cpu(desc->wMaxPacketSize) >= 8 && | |
1224 | desc->bInterval != 0) { | |
1225 | uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint " | |
1226 | "(addr %02x).\n", desc->bEndpointAddress); | |
1227 | dev->int_ep = ep; | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | /* ------------------------------------------------------------------------ | |
8e113595 | 1235 | * UVC device scan |
c0efd232 LP |
1236 | */ |
1237 | ||
c0efd232 LP |
1238 | /* |
1239 | * Scan the UVC descriptors to locate a chain starting at an Output Terminal | |
1240 | * and containing the following units: | |
1241 | * | |
8e113595 | 1242 | * - one or more Output Terminals (USB Streaming or Display) |
c0efd232 | 1243 | * - zero or one Processing Unit |
8e113595 | 1244 | * - zero, one or more single-input Selector Units |
c0efd232 LP |
1245 | * - zero or one multiple-input Selector Units, provided all inputs are |
1246 | * connected to input terminals | |
1247 | * - zero, one or mode single-input Extension Units | |
2c2d264b | 1248 | * - one or more Input Terminals (Camera, External or USB Streaming) |
c0efd232 | 1249 | * |
8e113595 LP |
1250 | * The terminal and units must match on of the following structures: |
1251 | * | |
1252 | * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) | |
1253 | * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... | |
1254 | * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) | |
1255 | * | |
1256 | * +---------+ +---------+ -> OTT_*(0) | |
1257 | * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... | |
1258 | * +---------+ +---------+ -> OTT_*(n) | |
1259 | * | |
1260 | * The Processing Unit and Extension Units can be in any order. Additional | |
1261 | * Extension Units connected to the main chain as single-unit branches are | |
1262 | * also supported. Single-input Selector Units are ignored. | |
c0efd232 | 1263 | */ |
8e113595 | 1264 | static int uvc_scan_chain_entity(struct uvc_video_chain *chain, |
c0efd232 LP |
1265 | struct uvc_entity *entity) |
1266 | { | |
1267 | switch (UVC_ENTITY_TYPE(entity)) { | |
b482d923 | 1268 | case UVC_VC_EXTENSION_UNIT: |
c0efd232 LP |
1269 | if (uvc_trace_param & UVC_TRACE_PROBE) |
1270 | printk(" <- XU %d", entity->id); | |
1271 | ||
8ca5a639 | 1272 | if (entity->bNrInPins != 1) { |
c0efd232 LP |
1273 | uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more " |
1274 | "than 1 input pin.\n", entity->id); | |
1275 | return -1; | |
1276 | } | |
1277 | ||
c0efd232 LP |
1278 | break; |
1279 | ||
b482d923 | 1280 | case UVC_VC_PROCESSING_UNIT: |
c0efd232 LP |
1281 | if (uvc_trace_param & UVC_TRACE_PROBE) |
1282 | printk(" <- PU %d", entity->id); | |
1283 | ||
8e113595 | 1284 | if (chain->processing != NULL) { |
c0efd232 LP |
1285 | uvc_trace(UVC_TRACE_DESCR, "Found multiple " |
1286 | "Processing Units in chain.\n"); | |
1287 | return -1; | |
1288 | } | |
1289 | ||
8e113595 | 1290 | chain->processing = entity; |
c0efd232 LP |
1291 | break; |
1292 | ||
b482d923 | 1293 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 LP |
1294 | if (uvc_trace_param & UVC_TRACE_PROBE) |
1295 | printk(" <- SU %d", entity->id); | |
1296 | ||
1297 | /* Single-input selector units are ignored. */ | |
8ca5a639 | 1298 | if (entity->bNrInPins == 1) |
c0efd232 LP |
1299 | break; |
1300 | ||
8e113595 | 1301 | if (chain->selector != NULL) { |
c0efd232 LP |
1302 | uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " |
1303 | "Units in chain.\n"); | |
1304 | return -1; | |
1305 | } | |
1306 | ||
8e113595 | 1307 | chain->selector = entity; |
c0efd232 LP |
1308 | break; |
1309 | ||
b482d923 LP |
1310 | case UVC_ITT_VENDOR_SPECIFIC: |
1311 | case UVC_ITT_CAMERA: | |
1312 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: | |
c0efd232 LP |
1313 | if (uvc_trace_param & UVC_TRACE_PROBE) |
1314 | printk(" <- IT %d\n", entity->id); | |
1315 | ||
c0efd232 LP |
1316 | break; |
1317 | ||
4093a5c4 LP |
1318 | case UVC_OTT_VENDOR_SPECIFIC: |
1319 | case UVC_OTT_DISPLAY: | |
1320 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1321 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1322 | printk(" OT %d", entity->id); | |
1323 | ||
1324 | break; | |
1325 | ||
b482d923 | 1326 | case UVC_TT_STREAMING: |
4057ac6c LP |
1327 | if (UVC_ENTITY_IS_ITERM(entity)) { |
1328 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1329 | printk(" <- IT %d\n", entity->id); | |
1330 | } else { | |
1331 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1332 | printk(" OT %d", entity->id); | |
ff924203 LP |
1333 | } |
1334 | ||
ff924203 LP |
1335 | break; |
1336 | ||
c0efd232 LP |
1337 | default: |
1338 | uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type " | |
1339 | "0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity)); | |
1340 | return -1; | |
1341 | } | |
1342 | ||
6241d8ca | 1343 | list_add_tail(&entity->chain, &chain->entities); |
c0efd232 LP |
1344 | return 0; |
1345 | } | |
1346 | ||
8e113595 | 1347 | static int uvc_scan_chain_forward(struct uvc_video_chain *chain, |
c0efd232 LP |
1348 | struct uvc_entity *entity, struct uvc_entity *prev) |
1349 | { | |
1350 | struct uvc_entity *forward; | |
1351 | int found; | |
1352 | ||
1353 | /* Forward scan */ | |
1354 | forward = NULL; | |
1355 | found = 0; | |
1356 | ||
1357 | while (1) { | |
8e113595 | 1358 | forward = uvc_entity_by_reference(chain->dev, entity->id, |
c0efd232 LP |
1359 | forward); |
1360 | if (forward == NULL) | |
1361 | break; | |
8e113595 | 1362 | if (forward == prev) |
c0efd232 LP |
1363 | continue; |
1364 | ||
8e113595 LP |
1365 | switch (UVC_ENTITY_TYPE(forward)) { |
1366 | case UVC_VC_EXTENSION_UNIT: | |
8ca5a639 | 1367 | if (forward->bNrInPins != 1) { |
8e113595 LP |
1368 | uvc_trace(UVC_TRACE_DESCR, "Extension unit %d " |
1369 | "has more than 1 input pin.\n", | |
1370 | entity->id); | |
1371 | return -EINVAL; | |
1372 | } | |
c0efd232 | 1373 | |
6241d8ca | 1374 | list_add_tail(&forward->chain, &chain->entities); |
8e113595 LP |
1375 | if (uvc_trace_param & UVC_TRACE_PROBE) { |
1376 | if (!found) | |
1377 | printk(" (->"); | |
1378 | ||
1379 | printk(" XU %d", forward->id); | |
1380 | found = 1; | |
1381 | } | |
1382 | break; | |
1383 | ||
1384 | case UVC_OTT_VENDOR_SPECIFIC: | |
1385 | case UVC_OTT_DISPLAY: | |
1386 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1387 | case UVC_TT_STREAMING: | |
1388 | if (UVC_ENTITY_IS_ITERM(forward)) { | |
1389 | uvc_trace(UVC_TRACE_DESCR, "Unsupported input " | |
1390 | "terminal %u.\n", forward->id); | |
1391 | return -EINVAL; | |
1392 | } | |
c0efd232 | 1393 | |
6241d8ca | 1394 | list_add_tail(&forward->chain, &chain->entities); |
8e113595 LP |
1395 | if (uvc_trace_param & UVC_TRACE_PROBE) { |
1396 | if (!found) | |
1397 | printk(" (->"); | |
1398 | ||
1399 | printk(" OT %d", forward->id); | |
1400 | found = 1; | |
1401 | } | |
1402 | break; | |
c0efd232 LP |
1403 | } |
1404 | } | |
1405 | if (found) | |
1406 | printk(")"); | |
1407 | ||
1408 | return 0; | |
1409 | } | |
1410 | ||
8e113595 | 1411 | static int uvc_scan_chain_backward(struct uvc_video_chain *chain, |
4057ac6c | 1412 | struct uvc_entity **_entity) |
c0efd232 | 1413 | { |
4057ac6c | 1414 | struct uvc_entity *entity = *_entity; |
c0efd232 | 1415 | struct uvc_entity *term; |
4057ac6c | 1416 | int id = -EINVAL, i; |
c0efd232 LP |
1417 | |
1418 | switch (UVC_ENTITY_TYPE(entity)) { | |
b482d923 | 1419 | case UVC_VC_EXTENSION_UNIT: |
b482d923 | 1420 | case UVC_VC_PROCESSING_UNIT: |
8ca5a639 | 1421 | id = entity->baSourceID[0]; |
c0efd232 LP |
1422 | break; |
1423 | ||
b482d923 | 1424 | case UVC_VC_SELECTOR_UNIT: |
c0efd232 | 1425 | /* Single-input selector units are ignored. */ |
8ca5a639 LP |
1426 | if (entity->bNrInPins == 1) { |
1427 | id = entity->baSourceID[0]; | |
c0efd232 LP |
1428 | break; |
1429 | } | |
1430 | ||
1431 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1432 | printk(" <- IT"); | |
1433 | ||
8e113595 | 1434 | chain->selector = entity; |
8ca5a639 LP |
1435 | for (i = 0; i < entity->bNrInPins; ++i) { |
1436 | id = entity->baSourceID[i]; | |
8e113595 | 1437 | term = uvc_entity_by_id(chain->dev, id); |
c0efd232 LP |
1438 | if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { |
1439 | uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " | |
1440 | "input %d isn't connected to an " | |
1441 | "input terminal\n", entity->id, i); | |
1442 | return -1; | |
1443 | } | |
1444 | ||
1445 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1446 | printk(" %d", term->id); | |
1447 | ||
6241d8ca | 1448 | list_add_tail(&term->chain, &chain->entities); |
8e113595 | 1449 | uvc_scan_chain_forward(chain, term, entity); |
c0efd232 LP |
1450 | } |
1451 | ||
1452 | if (uvc_trace_param & UVC_TRACE_PROBE) | |
1453 | printk("\n"); | |
1454 | ||
1455 | id = 0; | |
1456 | break; | |
4057ac6c LP |
1457 | |
1458 | case UVC_ITT_VENDOR_SPECIFIC: | |
1459 | case UVC_ITT_CAMERA: | |
1460 | case UVC_ITT_MEDIA_TRANSPORT_INPUT: | |
1461 | case UVC_OTT_VENDOR_SPECIFIC: | |
1462 | case UVC_OTT_DISPLAY: | |
1463 | case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: | |
1464 | case UVC_TT_STREAMING: | |
8ca5a639 | 1465 | id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; |
4057ac6c | 1466 | break; |
c0efd232 LP |
1467 | } |
1468 | ||
4057ac6c LP |
1469 | if (id <= 0) { |
1470 | *_entity = NULL; | |
1471 | return id; | |
1472 | } | |
1473 | ||
1474 | entity = uvc_entity_by_id(chain->dev, id); | |
1475 | if (entity == NULL) { | |
1476 | uvc_trace(UVC_TRACE_DESCR, "Found reference to " | |
1477 | "unknown entity %d.\n", id); | |
1478 | return -EINVAL; | |
1479 | } | |
1480 | ||
1481 | *_entity = entity; | |
1482 | return 0; | |
c0efd232 LP |
1483 | } |
1484 | ||
8e113595 | 1485 | static int uvc_scan_chain(struct uvc_video_chain *chain, |
4057ac6c | 1486 | struct uvc_entity *term) |
c0efd232 LP |
1487 | { |
1488 | struct uvc_entity *entity, *prev; | |
c0efd232 | 1489 | |
4057ac6c | 1490 | uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain:"); |
ff924203 | 1491 | |
4057ac6c LP |
1492 | entity = term; |
1493 | prev = NULL; | |
8e113595 | 1494 | |
4057ac6c LP |
1495 | while (entity != NULL) { |
1496 | /* Entity must not be part of an existing chain */ | |
8e113595 LP |
1497 | if (entity->chain.next || entity->chain.prev) { |
1498 | uvc_trace(UVC_TRACE_DESCR, "Found reference to " | |
4057ac6c | 1499 | "entity %d already in chain.\n", entity->id); |
8e113595 | 1500 | return -EINVAL; |
c0efd232 LP |
1501 | } |
1502 | ||
1503 | /* Process entity */ | |
8e113595 LP |
1504 | if (uvc_scan_chain_entity(chain, entity) < 0) |
1505 | return -EINVAL; | |
c0efd232 LP |
1506 | |
1507 | /* Forward scan */ | |
8e113595 LP |
1508 | if (uvc_scan_chain_forward(chain, entity, prev) < 0) |
1509 | return -EINVAL; | |
c0efd232 | 1510 | |
c0efd232 | 1511 | /* Backward scan */ |
4057ac6c LP |
1512 | prev = entity; |
1513 | if (uvc_scan_chain_backward(chain, &entity) < 0) | |
1514 | return -EINVAL; | |
c0efd232 LP |
1515 | } |
1516 | ||
8e113595 LP |
1517 | return 0; |
1518 | } | |
1519 | ||
6241d8ca LP |
1520 | static unsigned int uvc_print_terms(struct list_head *terms, u16 dir, |
1521 | char *buffer) | |
8e113595 LP |
1522 | { |
1523 | struct uvc_entity *term; | |
1524 | unsigned int nterms = 0; | |
1525 | char *p = buffer; | |
1526 | ||
1527 | list_for_each_entry(term, terms, chain) { | |
6241d8ca LP |
1528 | if (!UVC_ENTITY_IS_TERM(term) || |
1529 | UVC_TERM_DIRECTION(term) != dir) | |
1530 | continue; | |
1531 | ||
1532 | if (nterms) | |
8e113595 | 1533 | p += sprintf(p, ","); |
6241d8ca LP |
1534 | if (++nterms >= 4) { |
1535 | p += sprintf(p, "..."); | |
1536 | break; | |
8e113595 | 1537 | } |
6241d8ca | 1538 | p += sprintf(p, "%u", term->id); |
ff924203 | 1539 | } |
c0efd232 | 1540 | |
8e113595 LP |
1541 | return p - buffer; |
1542 | } | |
1543 | ||
1544 | static const char *uvc_print_chain(struct uvc_video_chain *chain) | |
1545 | { | |
1546 | static char buffer[43]; | |
1547 | char *p = buffer; | |
1548 | ||
6241d8ca | 1549 | p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p); |
8e113595 | 1550 | p += sprintf(p, " -> "); |
6241d8ca | 1551 | uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p); |
8e113595 LP |
1552 | |
1553 | return buffer; | |
c0efd232 LP |
1554 | } |
1555 | ||
1556 | /* | |
35f02a68 | 1557 | * Scan the device for video chains and register video devices. |
c0efd232 | 1558 | * |
8e113595 | 1559 | * Chains are scanned starting at their output terminals and walked backwards. |
c0efd232 | 1560 | */ |
35f02a68 | 1561 | static int uvc_scan_device(struct uvc_device *dev) |
c0efd232 | 1562 | { |
8e113595 | 1563 | struct uvc_video_chain *chain; |
c0efd232 | 1564 | struct uvc_entity *term; |
c0efd232 | 1565 | |
c0efd232 | 1566 | list_for_each_entry(term, &dev->entities, list) { |
8e113595 | 1567 | if (!UVC_ENTITY_IS_OTERM(term)) |
c0efd232 LP |
1568 | continue; |
1569 | ||
8e113595 LP |
1570 | /* If the terminal is already included in a chain, skip it. |
1571 | * This can happen for chains that have multiple output | |
1572 | * terminals, where all output terminals beside the first one | |
1573 | * will be inserted in the chain in forward scans. | |
1574 | */ | |
1575 | if (term->chain.next || term->chain.prev) | |
c0efd232 LP |
1576 | continue; |
1577 | ||
8e113595 LP |
1578 | chain = kzalloc(sizeof(*chain), GFP_KERNEL); |
1579 | if (chain == NULL) | |
1580 | return -ENOMEM; | |
1581 | ||
6241d8ca | 1582 | INIT_LIST_HEAD(&chain->entities); |
8e113595 LP |
1583 | mutex_init(&chain->ctrl_mutex); |
1584 | chain->dev = dev; | |
0550513c | 1585 | v4l2_prio_init(&chain->prio); |
8e113595 | 1586 | |
8be8ec6e LP |
1587 | term->flags |= UVC_ENTITY_FLAG_DEFAULT; |
1588 | ||
8e113595 LP |
1589 | if (uvc_scan_chain(chain, term) < 0) { |
1590 | kfree(chain); | |
1591 | continue; | |
c0efd232 | 1592 | } |
8e113595 LP |
1593 | |
1594 | uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", | |
1595 | uvc_print_chain(chain)); | |
1596 | ||
1597 | list_add_tail(&chain->list, &dev->chains); | |
c0efd232 LP |
1598 | } |
1599 | ||
8e113595 | 1600 | if (list_empty(&dev->chains)) { |
c0efd232 LP |
1601 | uvc_printk(KERN_INFO, "No valid video chain found.\n"); |
1602 | return -1; | |
1603 | } | |
1604 | ||
c0efd232 LP |
1605 | return 0; |
1606 | } | |
1607 | ||
8e113595 LP |
1608 | /* ------------------------------------------------------------------------ |
1609 | * Video device registration and unregistration | |
1610 | */ | |
1611 | ||
716fdee1 LP |
1612 | /* |
1613 | * Delete the UVC device. | |
1614 | * | |
1615 | * Called by the kernel when the last reference to the uvc_device structure | |
1616 | * is released. | |
1617 | * | |
1618 | * As this function is called after or during disconnect(), all URBs have | |
1619 | * already been canceled by the USB core. There is no need to kill the | |
1620 | * interrupt URB manually. | |
1621 | */ | |
1622 | static void uvc_delete(struct uvc_device *dev) | |
1623 | { | |
1624 | struct list_head *p, *n; | |
1625 | ||
1626 | usb_put_intf(dev->intf); | |
1627 | usb_put_dev(dev->udev); | |
1628 | ||
1629 | uvc_status_cleanup(dev); | |
1630 | uvc_ctrl_cleanup_device(dev); | |
1631 | ||
5a254d75 LP |
1632 | if (dev->vdev.dev) |
1633 | v4l2_device_unregister(&dev->vdev); | |
1634 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1635 | if (media_devnode_is_registered(&dev->mdev.devnode)) | |
1636 | media_device_unregister(&dev->mdev); | |
1637 | #endif | |
1638 | ||
716fdee1 LP |
1639 | list_for_each_safe(p, n, &dev->chains) { |
1640 | struct uvc_video_chain *chain; | |
1641 | chain = list_entry(p, struct uvc_video_chain, list); | |
1642 | kfree(chain); | |
1643 | } | |
1644 | ||
1645 | list_for_each_safe(p, n, &dev->entities) { | |
1646 | struct uvc_entity *entity; | |
1647 | entity = list_entry(p, struct uvc_entity, list); | |
4ffc2d89 LP |
1648 | #ifdef CONFIG_MEDIA_CONTROLLER |
1649 | uvc_mc_cleanup_entity(entity); | |
1650 | #endif | |
8a65a948 LP |
1651 | if (entity->vdev) { |
1652 | video_device_release(entity->vdev); | |
1653 | entity->vdev = NULL; | |
1654 | } | |
716fdee1 LP |
1655 | kfree(entity); |
1656 | } | |
1657 | ||
1658 | list_for_each_safe(p, n, &dev->streams) { | |
1659 | struct uvc_streaming *streaming; | |
1660 | streaming = list_entry(p, struct uvc_streaming, list); | |
1661 | usb_driver_release_interface(&uvc_driver.driver, | |
1662 | streaming->intf); | |
1663 | usb_put_intf(streaming->intf); | |
1664 | kfree(streaming->format); | |
1665 | kfree(streaming->header.bmaControls); | |
1666 | kfree(streaming); | |
1667 | } | |
1668 | ||
1669 | kfree(dev); | |
1670 | } | |
1671 | ||
1672 | static void uvc_release(struct video_device *vdev) | |
1673 | { | |
1674 | struct uvc_streaming *stream = video_get_drvdata(vdev); | |
1675 | struct uvc_device *dev = stream->dev; | |
1676 | ||
716fdee1 LP |
1677 | /* Decrement the registered streams count and delete the device when it |
1678 | * reaches zero. | |
1679 | */ | |
1680 | if (atomic_dec_and_test(&dev->nstreams)) | |
1681 | uvc_delete(dev); | |
1682 | } | |
1683 | ||
8e113595 LP |
1684 | /* |
1685 | * Unregister the video devices. | |
1686 | */ | |
1687 | static void uvc_unregister_video(struct uvc_device *dev) | |
1688 | { | |
1689 | struct uvc_streaming *stream; | |
1690 | ||
716fdee1 LP |
1691 | /* Unregistering all video devices might result in uvc_delete() being |
1692 | * called from inside the loop if there's no open file handle. To avoid | |
1693 | * that, increment the stream count before iterating over the streams | |
1694 | * and decrement it when done. | |
1695 | */ | |
1696 | atomic_inc(&dev->nstreams); | |
1697 | ||
8e113595 LP |
1698 | list_for_each_entry(stream, &dev->streams, list) { |
1699 | if (stream->vdev == NULL) | |
1700 | continue; | |
1701 | ||
716fdee1 | 1702 | video_unregister_device(stream->vdev); |
8e113595 | 1703 | stream->vdev = NULL; |
edbaa398 AF |
1704 | |
1705 | uvc_debugfs_cleanup_stream(stream); | |
8e113595 | 1706 | } |
716fdee1 LP |
1707 | |
1708 | /* Decrement the stream count and call uvc_delete explicitly if there | |
1709 | * are no stream left. | |
1710 | */ | |
1711 | if (atomic_dec_and_test(&dev->nstreams)) | |
1712 | uvc_delete(dev); | |
8e113595 LP |
1713 | } |
1714 | ||
1715 | static int uvc_register_video(struct uvc_device *dev, | |
1716 | struct uvc_streaming *stream) | |
1717 | { | |
1718 | struct video_device *vdev; | |
1719 | int ret; | |
1720 | ||
1721 | /* Initialize the streaming interface with default streaming | |
1722 | * parameters. | |
1723 | */ | |
1724 | ret = uvc_video_init(stream); | |
1725 | if (ret < 0) { | |
1726 | uvc_printk(KERN_ERR, "Failed to initialize the device " | |
1727 | "(%d).\n", ret); | |
1728 | return ret; | |
1729 | } | |
1730 | ||
edbaa398 AF |
1731 | uvc_debugfs_init_stream(stream); |
1732 | ||
8e113595 LP |
1733 | /* Register the device with V4L. */ |
1734 | vdev = video_device_alloc(); | |
1735 | if (vdev == NULL) { | |
1736 | uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n", | |
1737 | ret); | |
1738 | return -ENOMEM; | |
1739 | } | |
1740 | ||
1741 | /* We already hold a reference to dev->udev. The video device will be | |
1742 | * unregistered before the reference is released, so we don't need to | |
1743 | * get another one. | |
1744 | */ | |
5a254d75 | 1745 | vdev->v4l2_dev = &dev->vdev; |
8e113595 | 1746 | vdev->fops = &uvc_fops; |
716fdee1 | 1747 | vdev->release = uvc_release; |
0550513c | 1748 | vdev->prio = &stream->chain->prio; |
954f340f HV |
1749 | if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
1750 | vdev->vfl_dir = VFL_DIR_TX; | |
8e113595 LP |
1751 | strlcpy(vdev->name, dev->name, sizeof vdev->name); |
1752 | ||
1753 | /* Set the driver data before calling video_register_device, otherwise | |
1754 | * uvc_v4l2_open might race us. | |
1755 | */ | |
1756 | stream->vdev = vdev; | |
1757 | video_set_drvdata(vdev, stream); | |
1758 | ||
1759 | ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); | |
1760 | if (ret < 0) { | |
1761 | uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", | |
1762 | ret); | |
1763 | stream->vdev = NULL; | |
1764 | video_device_release(vdev); | |
1765 | return ret; | |
1766 | } | |
1767 | ||
f887e99a LP |
1768 | if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1769 | stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE; | |
1770 | else | |
1771 | stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; | |
1772 | ||
716fdee1 | 1773 | atomic_inc(&dev->nstreams); |
8e113595 LP |
1774 | return 0; |
1775 | } | |
1776 | ||
1777 | /* | |
1778 | * Register all video devices in all chains. | |
1779 | */ | |
1780 | static int uvc_register_terms(struct uvc_device *dev, | |
6241d8ca | 1781 | struct uvc_video_chain *chain) |
8e113595 LP |
1782 | { |
1783 | struct uvc_streaming *stream; | |
1784 | struct uvc_entity *term; | |
1785 | int ret; | |
1786 | ||
6241d8ca | 1787 | list_for_each_entry(term, &chain->entities, chain) { |
8e113595 LP |
1788 | if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) |
1789 | continue; | |
1790 | ||
1791 | stream = uvc_stream_by_id(dev, term->id); | |
1792 | if (stream == NULL) { | |
1793 | uvc_printk(KERN_INFO, "No streaming interface found " | |
1794 | "for terminal %u.", term->id); | |
1795 | continue; | |
1796 | } | |
1797 | ||
1798 | stream->chain = chain; | |
1799 | ret = uvc_register_video(dev, stream); | |
1800 | if (ret < 0) | |
1801 | return ret; | |
8a65a948 LP |
1802 | |
1803 | term->vdev = stream->vdev; | |
8e113595 LP |
1804 | } |
1805 | ||
1806 | return 0; | |
1807 | } | |
1808 | ||
1809 | static int uvc_register_chains(struct uvc_device *dev) | |
1810 | { | |
1811 | struct uvc_video_chain *chain; | |
1812 | int ret; | |
1813 | ||
1814 | list_for_each_entry(chain, &dev->chains, list) { | |
6241d8ca | 1815 | ret = uvc_register_terms(dev, chain); |
8e113595 LP |
1816 | if (ret < 0) |
1817 | return ret; | |
4ffc2d89 LP |
1818 | |
1819 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1820 | ret = uvc_mc_register_entities(chain); | |
1821 | if (ret < 0) { | |
1822 | uvc_printk(KERN_INFO, "Failed to register entites " | |
1823 | "(%d).\n", ret); | |
1824 | } | |
1825 | #endif | |
8e113595 LP |
1826 | } |
1827 | ||
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | /* ------------------------------------------------------------------------ | |
1832 | * USB probe, disconnect, suspend and resume | |
1833 | */ | |
1834 | ||
c0efd232 LP |
1835 | static int uvc_probe(struct usb_interface *intf, |
1836 | const struct usb_device_id *id) | |
1837 | { | |
1838 | struct usb_device *udev = interface_to_usbdev(intf); | |
1839 | struct uvc_device *dev; | |
1840 | int ret; | |
1841 | ||
1842 | if (id->idVendor && id->idProduct) | |
1843 | uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " | |
1844 | "(%04x:%04x)\n", udev->devpath, id->idVendor, | |
1845 | id->idProduct); | |
1846 | else | |
1847 | uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", | |
1848 | udev->devpath); | |
1849 | ||
2c2d264b | 1850 | /* Allocate memory for the device and initialize it. */ |
c0efd232 LP |
1851 | if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) |
1852 | return -ENOMEM; | |
1853 | ||
1854 | INIT_LIST_HEAD(&dev->entities); | |
8e113595 | 1855 | INIT_LIST_HEAD(&dev->chains); |
35f02a68 | 1856 | INIT_LIST_HEAD(&dev->streams); |
716fdee1 | 1857 | atomic_set(&dev->nstreams, 0); |
8fb91b33 | 1858 | atomic_set(&dev->nmappings, 0); |
17706f56 | 1859 | mutex_init(&dev->lock); |
c0efd232 LP |
1860 | |
1861 | dev->udev = usb_get_dev(udev); | |
1862 | dev->intf = usb_get_intf(intf); | |
1863 | dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
73de3592 LP |
1864 | dev->quirks = (uvc_quirks_param == -1) |
1865 | ? id->driver_info : uvc_quirks_param; | |
c0efd232 LP |
1866 | |
1867 | if (udev->product != NULL) | |
d0ebf307 | 1868 | strlcpy(dev->name, udev->product, sizeof dev->name); |
c0efd232 LP |
1869 | else |
1870 | snprintf(dev->name, sizeof dev->name, | |
1871 | "UVC Camera (%04x:%04x)", | |
1872 | le16_to_cpu(udev->descriptor.idVendor), | |
1873 | le16_to_cpu(udev->descriptor.idProduct)); | |
1874 | ||
2c2d264b | 1875 | /* Parse the Video Class control descriptor. */ |
c0efd232 LP |
1876 | if (uvc_parse_control(dev) < 0) { |
1877 | uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " | |
1878 | "descriptors.\n"); | |
1879 | goto error; | |
1880 | } | |
1881 | ||
fba4578e | 1882 | uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n", |
c0efd232 LP |
1883 | dev->uvc_version >> 8, dev->uvc_version & 0xff, |
1884 | udev->product ? udev->product : "<unnamed>", | |
1885 | le16_to_cpu(udev->descriptor.idVendor), | |
1886 | le16_to_cpu(udev->descriptor.idProduct)); | |
1887 | ||
73de3592 LP |
1888 | if (dev->quirks != id->driver_info) { |
1889 | uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module " | |
1890 | "parameter for testing purpose.\n", dev->quirks); | |
c0efd232 LP |
1891 | uvc_printk(KERN_INFO, "Please report required quirks to the " |
1892 | "linux-uvc-devel mailing list.\n"); | |
1893 | } | |
1894 | ||
5a254d75 LP |
1895 | /* Register the media and V4L2 devices. */ |
1896 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1897 | dev->mdev.dev = &intf->dev; | |
1898 | strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); | |
1899 | if (udev->serial) | |
1900 | strlcpy(dev->mdev.serial, udev->serial, | |
1901 | sizeof(dev->mdev.serial)); | |
1902 | strcpy(dev->mdev.bus_info, udev->devpath); | |
1903 | dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); | |
fd3e5824 | 1904 | dev->mdev.driver_version = LINUX_VERSION_CODE; |
5a254d75 LP |
1905 | if (media_device_register(&dev->mdev) < 0) |
1906 | goto error; | |
1907 | ||
1908 | dev->vdev.mdev = &dev->mdev; | |
1909 | #endif | |
1910 | if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) | |
1911 | goto error; | |
1912 | ||
2c2d264b | 1913 | /* Initialize controls. */ |
c0efd232 LP |
1914 | if (uvc_ctrl_init_device(dev) < 0) |
1915 | goto error; | |
1916 | ||
8e113595 | 1917 | /* Scan the device for video chains. */ |
35f02a68 | 1918 | if (uvc_scan_device(dev) < 0) |
c0efd232 LP |
1919 | goto error; |
1920 | ||
5a254d75 | 1921 | /* Register video device nodes. */ |
8e113595 LP |
1922 | if (uvc_register_chains(dev) < 0) |
1923 | goto error; | |
1924 | ||
2c2d264b | 1925 | /* Save our data pointer in the interface data. */ |
c0efd232 LP |
1926 | usb_set_intfdata(intf, dev); |
1927 | ||
2c2d264b | 1928 | /* Initialize the interrupt URB. */ |
c0efd232 LP |
1929 | if ((ret = uvc_status_init(dev)) < 0) { |
1930 | uvc_printk(KERN_INFO, "Unable to initialize the status " | |
1931 | "endpoint (%d), status interrupt will not be " | |
1932 | "supported.\n", ret); | |
1933 | } | |
1934 | ||
1935 | uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); | |
3dae8b41 | 1936 | usb_enable_autosuspend(udev); |
c0efd232 LP |
1937 | return 0; |
1938 | ||
1939 | error: | |
716fdee1 | 1940 | uvc_unregister_video(dev); |
c0efd232 LP |
1941 | return -ENODEV; |
1942 | } | |
1943 | ||
1944 | static void uvc_disconnect(struct usb_interface *intf) | |
1945 | { | |
1946 | struct uvc_device *dev = usb_get_intfdata(intf); | |
1947 | ||
1948 | /* Set the USB interface data to NULL. This can be done outside the | |
1949 | * lock, as there's no other reader. | |
1950 | */ | |
1951 | usb_set_intfdata(intf, NULL); | |
1952 | ||
b482d923 LP |
1953 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
1954 | UVC_SC_VIDEOSTREAMING) | |
c0efd232 LP |
1955 | return; |
1956 | ||
c0efd232 | 1957 | dev->state |= UVC_DEV_DISCONNECTED; |
a9e28585 | 1958 | |
716fdee1 | 1959 | uvc_unregister_video(dev); |
c0efd232 LP |
1960 | } |
1961 | ||
1962 | static int uvc_suspend(struct usb_interface *intf, pm_message_t message) | |
1963 | { | |
1964 | struct uvc_device *dev = usb_get_intfdata(intf); | |
35f02a68 | 1965 | struct uvc_streaming *stream; |
c0efd232 LP |
1966 | |
1967 | uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", | |
1968 | intf->cur_altsetting->desc.bInterfaceNumber); | |
1969 | ||
1970 | /* Controls are cached on the fly so they don't need to be saved. */ | |
b482d923 | 1971 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
17706f56 LP |
1972 | UVC_SC_VIDEOCONTROL) { |
1973 | mutex_lock(&dev->lock); | |
1974 | if (dev->users) | |
1975 | uvc_status_stop(dev); | |
1976 | mutex_unlock(&dev->lock); | |
1977 | return 0; | |
1978 | } | |
c0efd232 | 1979 | |
35f02a68 LP |
1980 | list_for_each_entry(stream, &dev->streams, list) { |
1981 | if (stream->intf == intf) | |
1982 | return uvc_video_suspend(stream); | |
c0efd232 LP |
1983 | } |
1984 | ||
35f02a68 LP |
1985 | uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " |
1986 | "mismatch.\n"); | |
1987 | return -EINVAL; | |
c0efd232 LP |
1988 | } |
1989 | ||
9b0ae867 | 1990 | static int __uvc_resume(struct usb_interface *intf, int reset) |
c0efd232 LP |
1991 | { |
1992 | struct uvc_device *dev = usb_get_intfdata(intf); | |
35f02a68 | 1993 | struct uvc_streaming *stream; |
c0efd232 LP |
1994 | |
1995 | uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", | |
1996 | intf->cur_altsetting->desc.bInterfaceNumber); | |
1997 | ||
b482d923 LP |
1998 | if (intf->cur_altsetting->desc.bInterfaceSubClass == |
1999 | UVC_SC_VIDEOCONTROL) { | |
17706f56 | 2000 | int ret = 0; |
7564f67d | 2001 | |
17706f56 LP |
2002 | if (reset) { |
2003 | ret = uvc_ctrl_resume_device(dev); | |
7564f67d HV |
2004 | if (ret < 0) |
2005 | return ret; | |
2006 | } | |
c0efd232 | 2007 | |
17706f56 LP |
2008 | mutex_lock(&dev->lock); |
2009 | if (dev->users) | |
2010 | ret = uvc_status_start(dev, GFP_NOIO); | |
2011 | mutex_unlock(&dev->lock); | |
2012 | ||
2013 | return ret; | |
c0efd232 LP |
2014 | } |
2015 | ||
35f02a68 LP |
2016 | list_for_each_entry(stream, &dev->streams, list) { |
2017 | if (stream->intf == intf) | |
d59a7b1d | 2018 | return uvc_video_resume(stream, reset); |
c0efd232 LP |
2019 | } |
2020 | ||
35f02a68 LP |
2021 | uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " |
2022 | "mismatch.\n"); | |
2023 | return -EINVAL; | |
c0efd232 LP |
2024 | } |
2025 | ||
9b0ae867 LP |
2026 | static int uvc_resume(struct usb_interface *intf) |
2027 | { | |
2028 | return __uvc_resume(intf, 0); | |
2029 | } | |
2030 | ||
2031 | static int uvc_reset_resume(struct usb_interface *intf) | |
2032 | { | |
2033 | return __uvc_resume(intf, 1); | |
2034 | } | |
2035 | ||
310fe524 LP |
2036 | /* ------------------------------------------------------------------------ |
2037 | * Module parameters | |
2038 | */ | |
2039 | ||
2040 | static int uvc_clock_param_get(char *buffer, struct kernel_param *kp) | |
2041 | { | |
2042 | if (uvc_clock_param == CLOCK_MONOTONIC) | |
2043 | return sprintf(buffer, "CLOCK_MONOTONIC"); | |
2044 | else | |
2045 | return sprintf(buffer, "CLOCK_REALTIME"); | |
2046 | } | |
2047 | ||
2048 | static int uvc_clock_param_set(const char *val, struct kernel_param *kp) | |
2049 | { | |
2050 | if (strncasecmp(val, "clock_", strlen("clock_")) == 0) | |
2051 | val += strlen("clock_"); | |
2052 | ||
2053 | if (strcasecmp(val, "monotonic") == 0) | |
2054 | uvc_clock_param = CLOCK_MONOTONIC; | |
2055 | else if (strcasecmp(val, "realtime") == 0) | |
2056 | uvc_clock_param = CLOCK_REALTIME; | |
2057 | else | |
2058 | return -EINVAL; | |
2059 | ||
2060 | return 0; | |
2061 | } | |
2062 | ||
2063 | module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, | |
2064 | &uvc_clock_param, S_IRUGO|S_IWUSR); | |
2065 | MODULE_PARM_DESC(clock, "Video buffers timestamp clock"); | |
2066 | module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); | |
2067 | MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); | |
2068 | module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); | |
2069 | MODULE_PARM_DESC(quirks, "Forced device quirks"); | |
2070 | module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); | |
2071 | MODULE_PARM_DESC(trace, "Trace level bitmask"); | |
2072 | module_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); | |
2073 | MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); | |
2074 | ||
c0efd232 LP |
2075 | /* ------------------------------------------------------------------------ |
2076 | * Driver initialization and cleanup | |
2077 | */ | |
2078 | ||
2079 | /* | |
2080 | * The Logitech cameras listed below have their interface class set to | |
2081 | * VENDOR_SPEC because they don't announce themselves as UVC devices, even | |
2082 | * though they are compliant. | |
2083 | */ | |
2084 | static struct usb_device_id uvc_ids[] = { | |
4eb2697e LP |
2085 | /* LogiLink Wireless Webcam */ |
2086 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2087 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2088 | .idVendor = 0x0416, | |
2089 | .idProduct = 0xa91a, | |
2090 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2091 | .bInterfaceSubClass = 1, | |
2092 | .bInterfaceProtocol = 0, | |
2093 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
bce039c0 LP |
2094 | /* Genius eFace 2025 */ |
2095 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2096 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2097 | .idVendor = 0x0458, | |
2098 | .idProduct = 0x706e, | |
2099 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2100 | .bInterfaceSubClass = 1, | |
2101 | .bInterfaceProtocol = 0, | |
2102 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2103 | /* Microsoft Lifecam NX-6000 */ |
2104 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2105 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2106 | .idVendor = 0x045e, | |
2107 | .idProduct = 0x00f8, | |
2108 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2109 | .bInterfaceSubClass = 1, | |
2110 | .bInterfaceProtocol = 0, | |
2111 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
1558ec83 LP |
2112 | /* Microsoft Lifecam NX-3000 */ |
2113 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2114 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2115 | .idVendor = 0x045e, | |
2116 | .idProduct = 0x0721, | |
2117 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2118 | .bInterfaceSubClass = 1, | |
2119 | .bInterfaceProtocol = 0, | |
2120 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c0efd232 LP |
2121 | /* Microsoft Lifecam VX-7000 */ |
2122 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2123 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2124 | .idVendor = 0x045e, | |
2125 | .idProduct = 0x0723, | |
2126 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2127 | .bInterfaceSubClass = 1, | |
2128 | .bInterfaceProtocol = 0, | |
2129 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
2130 | /* Logitech Quickcam Fusion */ | |
2131 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2132 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2133 | .idVendor = 0x046d, | |
2134 | .idProduct = 0x08c1, | |
2135 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2136 | .bInterfaceSubClass = 1, | |
2137 | .bInterfaceProtocol = 0 }, | |
2138 | /* Logitech Quickcam Orbit MP */ | |
2139 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2140 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2141 | .idVendor = 0x046d, | |
2142 | .idProduct = 0x08c2, | |
2143 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2144 | .bInterfaceSubClass = 1, | |
2145 | .bInterfaceProtocol = 0 }, | |
2146 | /* Logitech Quickcam Pro for Notebook */ | |
2147 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2148 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2149 | .idVendor = 0x046d, | |
2150 | .idProduct = 0x08c3, | |
2151 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2152 | .bInterfaceSubClass = 1, | |
2153 | .bInterfaceProtocol = 0 }, | |
2154 | /* Logitech Quickcam Pro 5000 */ | |
2155 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2156 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2157 | .idVendor = 0x046d, | |
2158 | .idProduct = 0x08c5, | |
2159 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2160 | .bInterfaceSubClass = 1, | |
2161 | .bInterfaceProtocol = 0 }, | |
2162 | /* Logitech Quickcam OEM Dell Notebook */ | |
2163 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2164 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2165 | .idVendor = 0x046d, | |
2166 | .idProduct = 0x08c6, | |
2167 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2168 | .bInterfaceSubClass = 1, | |
2169 | .bInterfaceProtocol = 0 }, | |
2170 | /* Logitech Quickcam OEM Cisco VT Camera II */ | |
2171 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2172 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2173 | .idVendor = 0x046d, | |
2174 | .idProduct = 0x08c7, | |
2175 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2176 | .bInterfaceSubClass = 1, | |
2177 | .bInterfaceProtocol = 0 }, | |
86d8b6ab LP |
2178 | /* Chicony CNF7129 (Asus EEE 100HE) */ |
2179 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2180 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2181 | .idVendor = 0x04f2, | |
2182 | .idProduct = 0xb071, | |
2183 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2184 | .bInterfaceSubClass = 1, | |
2185 | .bInterfaceProtocol = 0, | |
2186 | .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE }, | |
f61d1d8a LP |
2187 | /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ |
2188 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2189 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2190 | .idVendor = 0x058f, | |
2191 | .idProduct = 0x3820, | |
2192 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2193 | .bInterfaceSubClass = 1, | |
2194 | .bInterfaceProtocol = 0, | |
2195 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
3efe2f1b LP |
2196 | /* Dell XPS m1530 */ |
2197 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2198 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2199 | .idVendor = 0x05a9, | |
2200 | .idProduct = 0x2640, | |
2201 | .bInterfaceClass = USB_CLASS_VIDEO, | |
89e0f248 JS |
2202 | .bInterfaceSubClass = 1, |
2203 | .bInterfaceProtocol = 0, | |
2204 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
2205 | /* Dell SP2008WFP Monitor */ | |
2206 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2207 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2208 | .idVendor = 0x05a9, | |
2209 | .idProduct = 0x2641, | |
2210 | .bInterfaceClass = USB_CLASS_VIDEO, | |
3efe2f1b LP |
2211 | .bInterfaceSubClass = 1, |
2212 | .bInterfaceProtocol = 0, | |
2213 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c2a273b2 JS |
2214 | /* Dell Alienware X51 */ |
2215 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2216 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2217 | .idVendor = 0x05a9, | |
2218 | .idProduct = 0x2643, | |
2219 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2220 | .bInterfaceSubClass = 1, | |
2221 | .bInterfaceProtocol = 0, | |
2222 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
afcf44c7 KM |
2223 | /* Dell Studio Hybrid 140g (OmniVision webcam) */ |
2224 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2225 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2226 | .idVendor = 0x05a9, | |
2227 | .idProduct = 0x264a, | |
2228 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2229 | .bInterfaceSubClass = 1, | |
2230 | .bInterfaceProtocol = 0, | |
2231 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
c0efd232 | 2232 | /* Apple Built-In iSight */ |
2c2d264b | 2233 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
c0efd232 LP |
2234 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2235 | .idVendor = 0x05ac, | |
2236 | .idProduct = 0x8501, | |
2c2d264b LP |
2237 | .bInterfaceClass = USB_CLASS_VIDEO, |
2238 | .bInterfaceSubClass = 1, | |
2239 | .bInterfaceProtocol = 0, | |
c0efd232 LP |
2240 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2241 | | UVC_QUIRK_BUILTIN_ISIGHT }, | |
949d9264 KS |
2242 | /* Foxlink ("HP Webcam" on HP Mini 5103) */ |
2243 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2244 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2245 | .idVendor = 0x05c8, | |
2246 | .idProduct = 0x0403, | |
2247 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2248 | .bInterfaceSubClass = 1, | |
2249 | .bInterfaceProtocol = 0, | |
2250 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
c0efd232 | 2251 | /* Genesys Logic USB 2.0 PC Camera */ |
2c2d264b | 2252 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
c0efd232 | 2253 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2c2d264b LP |
2254 | .idVendor = 0x05e3, |
2255 | .idProduct = 0x0505, | |
2256 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2257 | .bInterfaceSubClass = 1, | |
2258 | .bInterfaceProtocol = 0, | |
2259 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
e01a2344 LP |
2260 | /* Hercules Classic Silver */ |
2261 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2262 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2263 | .idVendor = 0x06f8, | |
2264 | .idProduct = 0x300c, | |
2265 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2266 | .bInterfaceSubClass = 1, | |
2267 | .bInterfaceProtocol = 0, | |
2268 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
d79cd839 LP |
2269 | /* ViMicro Vega */ |
2270 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2271 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2272 | .idVendor = 0x0ac8, | |
2273 | .idProduct = 0x332d, | |
2274 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2275 | .bInterfaceSubClass = 1, | |
2276 | .bInterfaceProtocol = 0, | |
2277 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
2278 | /* ViMicro - Minoru3D */ | |
2279 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2280 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2281 | .idVendor = 0x0ac8, | |
2282 | .idProduct = 0x3410, | |
2283 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2284 | .bInterfaceSubClass = 1, | |
2285 | .bInterfaceProtocol = 0, | |
2286 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
2287 | /* ViMicro Venus - Minoru3D */ | |
2288 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
50144aee LP |
2289 | | USB_DEVICE_ID_MATCH_INT_INFO, |
2290 | .idVendor = 0x0ac8, | |
d79cd839 | 2291 | .idProduct = 0x3420, |
50144aee LP |
2292 | .bInterfaceClass = USB_CLASS_VIDEO, |
2293 | .bInterfaceSubClass = 1, | |
2294 | .bInterfaceProtocol = 0, | |
2295 | .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, | |
d584b838 LP |
2296 | /* Ophir Optronics - SPCAM 620U */ |
2297 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2298 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2299 | .idVendor = 0x0bd3, | |
2300 | .idProduct = 0x0555, | |
2301 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2302 | .bInterfaceSubClass = 1, | |
2303 | .bInterfaceProtocol = 0, | |
2304 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2305 | /* MT6227 */ |
2306 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2307 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2308 | .idVendor = 0x0e8d, | |
2309 | .idProduct = 0x0004, | |
2310 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2311 | .bInterfaceSubClass = 1, | |
2312 | .bInterfaceProtocol = 0, | |
bab6f66c LP |
2313 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2314 | | UVC_QUIRK_PROBE_DEF }, | |
9275b32b LP |
2315 | /* IMC Networks (Medion Akoya) */ |
2316 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2317 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2318 | .idVendor = 0x13d3, | |
2319 | .idProduct = 0x5103, | |
2320 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2321 | .bInterfaceSubClass = 1, | |
2322 | .bInterfaceProtocol = 0, | |
2323 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
d1787b1f LP |
2324 | /* JMicron USB2.0 XGA WebCam */ |
2325 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2326 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2327 | .idVendor = 0x152d, | |
2328 | .idProduct = 0x0310, | |
2329 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2330 | .bInterfaceSubClass = 1, | |
2331 | .bInterfaceProtocol = 0, | |
2332 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2333 | /* Syntek (HP Spartan) */ |
2334 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2335 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2336 | .idVendor = 0x174f, | |
2337 | .idProduct = 0x5212, | |
2338 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2339 | .bInterfaceSubClass = 1, | |
2340 | .bInterfaceProtocol = 0, | |
25e69850 | 2341 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, |
562f0fed LP |
2342 | /* Syntek (Samsung Q310) */ |
2343 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2344 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2345 | .idVendor = 0x174f, | |
2346 | .idProduct = 0x5931, | |
2347 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2348 | .bInterfaceSubClass = 1, | |
2349 | .bInterfaceProtocol = 0, | |
2350 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
f129b03b LP |
2351 | /* Syntek (Packard Bell EasyNote MX52 */ |
2352 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2353 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2354 | .idVendor = 0x174f, | |
2355 | .idProduct = 0x8a12, | |
2356 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2357 | .bInterfaceSubClass = 1, | |
2358 | .bInterfaceProtocol = 0, | |
2359 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
f61d1d8a | 2360 | /* Syntek (Asus F9SG) */ |
25e69850 LP |
2361 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2362 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2363 | .idVendor = 0x174f, | |
2364 | .idProduct = 0x8a31, | |
2365 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2366 | .bInterfaceSubClass = 1, | |
2367 | .bInterfaceProtocol = 0, | |
c0efd232 LP |
2368 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, |
2369 | /* Syntek (Asus U3S) */ | |
2370 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2371 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2372 | .idVendor = 0x174f, | |
2373 | .idProduct = 0x8a33, | |
2374 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2375 | .bInterfaceSubClass = 1, | |
2376 | .bInterfaceProtocol = 0, | |
2377 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
0ce566da LP |
2378 | /* Syntek (JAOtech Smart Terminal) */ |
2379 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2380 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2381 | .idVendor = 0x174f, | |
2382 | .idProduct = 0x8a34, | |
2383 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2384 | .bInterfaceSubClass = 1, | |
2385 | .bInterfaceProtocol = 0, | |
2386 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
70092c26 LP |
2387 | /* Miricle 307K */ |
2388 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2389 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2390 | .idVendor = 0x17dc, | |
2391 | .idProduct = 0x0202, | |
2392 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2393 | .bInterfaceSubClass = 1, | |
2394 | .bInterfaceProtocol = 0, | |
2395 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
849a3aba | 2396 | /* Lenovo Thinkpad SL400/SL500 */ |
2f38483b LP |
2397 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
2398 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2399 | .idVendor = 0x17ef, | |
2400 | .idProduct = 0x480b, | |
2401 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2402 | .bInterfaceSubClass = 1, | |
2403 | .bInterfaceProtocol = 0, | |
2404 | .driver_info = UVC_QUIRK_STREAM_NO_FID }, | |
2d2bf2a3 LP |
2405 | /* Aveo Technology USB 2.0 Camera */ |
2406 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2407 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2408 | .idVendor = 0x1871, | |
2409 | .idProduct = 0x0306, | |
2410 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2411 | .bInterfaceSubClass = 1, | |
2412 | .bInterfaceProtocol = 0, | |
5bdf1377 LP |
2413 | .driver_info = UVC_QUIRK_PROBE_MINMAX |
2414 | | UVC_QUIRK_PROBE_EXTRAFIELDS }, | |
c0efd232 LP |
2415 | /* Ecamm Pico iMage */ |
2416 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2417 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2418 | .idVendor = 0x18cd, | |
2419 | .idProduct = 0xcafe, | |
2420 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2421 | .bInterfaceSubClass = 1, | |
2422 | .bInterfaceProtocol = 0, | |
2423 | .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, | |
2bb00fe6 LP |
2424 | /* Manta MM-353 Plako */ |
2425 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2426 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2427 | .idVendor = 0x18ec, | |
2428 | .idProduct = 0x3188, | |
2429 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2430 | .bInterfaceSubClass = 1, | |
2431 | .bInterfaceProtocol = 0, | |
2432 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
ca4a3456 LP |
2433 | /* FSC WebCam V30S */ |
2434 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2435 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2436 | .idVendor = 0x18ec, | |
2437 | .idProduct = 0x3288, | |
2438 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2439 | .bInterfaceSubClass = 1, | |
2440 | .bInterfaceProtocol = 0, | |
2441 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
1e4d05bc LP |
2442 | /* Arkmicro unbranded */ |
2443 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2444 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2445 | .idVendor = 0x18ec, | |
2446 | .idProduct = 0x3290, | |
2447 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2448 | .bInterfaceSubClass = 1, | |
2449 | .bInterfaceProtocol = 0, | |
2450 | .driver_info = UVC_QUIRK_PROBE_DEF }, | |
fd3e9f2f AC |
2451 | /* The Imaging Source USB CCD cameras */ |
2452 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2453 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2454 | .idVendor = 0x199e, | |
2455 | .idProduct = 0x8102, | |
2456 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
2457 | .bInterfaceSubClass = 1, | |
2458 | .bInterfaceProtocol = 0 }, | |
c0efd232 LP |
2459 | /* Bodelin ProScopeHR */ |
2460 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2461 | | USB_DEVICE_ID_MATCH_DEV_HI | |
2462 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2463 | .idVendor = 0x19ab, | |
2464 | .idProduct = 0x1000, | |
2465 | .bcdDevice_hi = 0x0126, | |
2466 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2467 | .bInterfaceSubClass = 1, | |
2468 | .bInterfaceProtocol = 0, | |
2469 | .driver_info = UVC_QUIRK_STATUS_INTERVAL }, | |
3bc766ad LP |
2470 | /* MSI StarCam 370i */ |
2471 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2472 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2473 | .idVendor = 0x1b3b, | |
2474 | .idProduct = 0x2951, | |
2475 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2476 | .bInterfaceSubClass = 1, | |
2477 | .bInterfaceProtocol = 0, | |
2478 | .driver_info = UVC_QUIRK_PROBE_MINMAX }, | |
c0efd232 LP |
2479 | /* SiGma Micro USB Web Camera */ |
2480 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | |
2481 | | USB_DEVICE_ID_MATCH_INT_INFO, | |
2482 | .idVendor = 0x1c4f, | |
2483 | .idProduct = 0x3000, | |
2484 | .bInterfaceClass = USB_CLASS_VIDEO, | |
2485 | .bInterfaceSubClass = 1, | |
2486 | .bInterfaceProtocol = 0, | |
2487 | .driver_info = UVC_QUIRK_PROBE_MINMAX | |
d732c44c | 2488 | | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, |
c0efd232 LP |
2489 | /* Generic USB Video Class */ |
2490 | { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, | |
2491 | {} | |
2492 | }; | |
2493 | ||
2494 | MODULE_DEVICE_TABLE(usb, uvc_ids); | |
2495 | ||
2496 | struct uvc_driver uvc_driver = { | |
2497 | .driver = { | |
2498 | .name = "uvcvideo", | |
2499 | .probe = uvc_probe, | |
2500 | .disconnect = uvc_disconnect, | |
2501 | .suspend = uvc_suspend, | |
2502 | .resume = uvc_resume, | |
9b0ae867 | 2503 | .reset_resume = uvc_reset_resume, |
c0efd232 LP |
2504 | .id_table = uvc_ids, |
2505 | .supports_autosuspend = 1, | |
2506 | }, | |
2507 | }; | |
2508 | ||
2509 | static int __init uvc_init(void) | |
2510 | { | |
edbaa398 | 2511 | int ret; |
c0efd232 | 2512 | |
edbaa398 AF |
2513 | uvc_debugfs_init(); |
2514 | ||
2515 | ret = usb_register(&uvc_driver.driver); | |
2516 | if (ret < 0) { | |
2517 | uvc_debugfs_cleanup(); | |
2518 | return ret; | |
2519 | } | |
2520 | ||
2521 | printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); | |
2522 | return 0; | |
c0efd232 LP |
2523 | } |
2524 | ||
2525 | static void __exit uvc_cleanup(void) | |
2526 | { | |
2527 | usb_deregister(&uvc_driver.driver); | |
edbaa398 | 2528 | uvc_debugfs_cleanup(); |
c0efd232 LP |
2529 | } |
2530 | ||
2531 | module_init(uvc_init); | |
2532 | module_exit(uvc_cleanup); | |
2533 | ||
c0efd232 LP |
2534 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2535 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2536 | MODULE_LICENSE("GPL"); | |
2537 | MODULE_VERSION(DRIVER_VERSION); | |
f87086e3 | 2538 |