1 | /* $NetBSD: uvideo.c,v 1.43 2016/07/07 06:55:42 msaitoh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2008 Patrick Mahoney |
5 | * All rights reserved. |
6 | * |
7 | * This code was written by Patrick Mahoney (pat@polycrystal.org) as |
8 | * part of Google Summer of Code 2008. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. All advertising materials mentioning features or use of this software |
19 | * must display the following acknowledgement: |
20 | * This product includes software developed by the NetBSD |
21 | * Foundation, Inc. and its contributors. |
22 | * 4. Neither the name of The NetBSD Foundation nor the names of its |
23 | * contributors may be used to endorse or promote products derived |
24 | * from this software without specific prior written permission. |
25 | * |
26 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
27 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
28 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
30 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
31 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
32 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
33 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
34 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
35 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
36 | * POSSIBILITY OF SUCH DAMAGE. |
37 | */ |
38 | |
39 | /* |
40 | * USB video specs: |
41 | * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip |
42 | */ |
43 | |
44 | #include <sys/cdefs.h> |
45 | __KERNEL_RCSID(0, "$NetBSD: uvideo.c,v 1.43 2016/07/07 06:55:42 msaitoh Exp $" ); |
46 | |
47 | #ifdef _KERNEL_OPT |
48 | #include "opt_usb.h" |
49 | #endif |
50 | |
51 | #ifdef _MODULE |
52 | #include <sys/module.h> |
53 | #endif |
54 | |
55 | #include <sys/param.h> |
56 | #include <sys/systm.h> |
57 | #include <sys/kernel.h> |
58 | #include <sys/kmem.h> |
59 | #include <sys/device.h> |
60 | #include <sys/ioctl.h> |
61 | #include <sys/uio.h> |
62 | #include <sys/file.h> |
63 | #include <sys/select.h> |
64 | #include <sys/proc.h> |
65 | #include <sys/conf.h> |
66 | #include <sys/vnode.h> |
67 | #include <sys/poll.h> |
68 | #include <sys/queue.h> /* SLIST */ |
69 | #include <sys/kthread.h> |
70 | #include <sys/bus.h> |
71 | |
72 | #include <sys/videoio.h> |
73 | #include <dev/video_if.h> |
74 | |
75 | #include <dev/usb/usb.h> |
76 | #include <dev/usb/usbdi.h> |
77 | #include <dev/usb/usbdivar.h> |
78 | #include <dev/usb/usbdi_util.h> |
79 | #include <dev/usb/usb_quirks.h> |
80 | |
81 | #include <dev/usb/uvideoreg.h> |
82 | |
83 | #define UVIDEO_NXFERS 3 |
84 | #define PRI_UVIDEO PRI_BIO |
85 | |
86 | /* #define UVIDEO_DISABLE_MJPEG */ |
87 | |
88 | #ifdef UVIDEO_DEBUG |
89 | #define DPRINTF(x) do { if (uvideodebug) printf x; } while (0) |
90 | #define DPRINTFN(n,x) do { if (uvideodebug>(n)) printf x; } while (0) |
91 | int uvideodebug = 20; |
92 | #else |
93 | #define DPRINTF(x) |
94 | #define DPRINTFN(n,x) |
95 | #endif |
96 | |
97 | typedef enum { |
98 | UVIDEO_STATE_CLOSED, |
99 | UVIDEO_STATE_OPENING, |
100 | UVIDEO_STATE_IDLE |
101 | } uvideo_state; |
102 | |
103 | struct uvideo_camera_terminal { |
104 | uint16_t ct_objective_focal_min; |
105 | uint16_t ct_objective_focal_max; |
106 | uint16_t ct_ocular_focal_length; |
107 | }; |
108 | |
109 | struct uvideo_processing_unit { |
110 | uint16_t pu_max_multiplier; /* digital zoom */ |
111 | uint8_t pu_video_standards; |
112 | }; |
113 | |
114 | struct uvideo_extension_unit { |
115 | guid_t xu_guid; |
116 | }; |
117 | |
118 | /* For simplicity, we consider a Terminal a special case of Unit |
119 | * rather than a separate entity. */ |
120 | struct uvideo_unit { |
121 | uint8_t vu_id; |
122 | uint8_t vu_type; |
123 | uint8_t vu_dst_id; |
124 | uint8_t vu_nsrcs; |
125 | union { |
126 | uint8_t vu_src_id; /* vu_nsrcs = 1 */ |
127 | uint8_t *vu_src_id_ary; /* vu_nsrcs > 1 */ |
128 | } s; |
129 | |
130 | /* fields for individual unit/terminal types */ |
131 | union { |
132 | struct uvideo_camera_terminal vu_camera; |
133 | struct uvideo_processing_unit vu_processing; |
134 | struct uvideo_extension_unit vu_extension; |
135 | } u; |
136 | |
137 | /* Used by camera terminal, processing and extention units. */ |
138 | uint8_t vu_control_size; /* number of bytes in vu_controls */ |
139 | uint8_t *vu_controls; /* array of bytes. bits are |
140 | * numbered from 0 at least |
141 | * significant bit to |
142 | * (8*vu_control_size - 1)*/ |
143 | }; |
144 | |
145 | struct uvideo_alternate { |
146 | uint8_t altno; |
147 | uint8_t interval; |
148 | uint16_t max_packet_size; |
149 | SLIST_ENTRY(uvideo_alternate) entries; |
150 | }; |
151 | SLIST_HEAD(altlist, uvideo_alternate); |
152 | |
153 | #define UVIDEO_FORMAT_GET_FORMAT_INDEX(fmt) \ |
154 | ((fmt)->format.priv & 0xff) |
155 | #define UVIDEO_FORMAT_GET_FRAME_INDEX(fmt) \ |
156 | (((fmt)->format.priv >> 8) & 0xff) |
157 | /* TODO: find a better way to set bytes within this 32 bit value? */ |
158 | #define UVIDEO_FORMAT_SET_FORMAT_INDEX(fmt, index) do { \ |
159 | (fmt)->format.priv &= ~0xff; \ |
160 | (fmt)->format.priv |= ((index) & 0xff); \ |
161 | } while (0) |
162 | #define UVIDEO_FORMAT_SET_FRAME_INDEX(fmt, index) do { \ |
163 | (fmt)->format.priv &= ~(0xff << 8); \ |
164 | ((fmt)->format.priv |= (((index) & 0xff) << 8)); \ |
165 | } while (0) |
166 | |
167 | struct uvideo_pixel_format { |
168 | enum video_pixel_format pixel_format; |
169 | SIMPLEQ_ENTRY(uvideo_pixel_format) entries; |
170 | }; |
171 | SIMPLEQ_HEAD(uvideo_pixel_format_list, uvideo_pixel_format); |
172 | |
173 | struct uvideo_format { |
174 | struct video_format format; |
175 | SIMPLEQ_ENTRY(uvideo_format) entries; |
176 | }; |
177 | SIMPLEQ_HEAD(uvideo_format_list, uvideo_format); |
178 | |
179 | struct uvideo_isoc_xfer; |
180 | struct uvideo_stream; |
181 | |
182 | struct uvideo_isoc { |
183 | struct uvideo_isoc_xfer *i_ix; |
184 | struct uvideo_stream *i_vs; |
185 | struct usbd_xfer *i_xfer; |
186 | uint8_t *i_buf; |
187 | uint16_t *i_frlengths; |
188 | }; |
189 | |
190 | struct uvideo_isoc_xfer { |
191 | uint8_t ix_endpt; |
192 | struct usbd_pipe *ix_pipe; |
193 | struct uvideo_isoc ix_i[UVIDEO_NXFERS]; |
194 | uint32_t ix_nframes; |
195 | uint32_t ix_uframe_len; |
196 | |
197 | struct altlist ix_altlist; |
198 | }; |
199 | |
200 | struct uvideo_bulk_xfer { |
201 | uint8_t bx_endpt; |
202 | struct usbd_pipe *bx_pipe; |
203 | struct usbd_xfer *bx_xfer; |
204 | uint8_t *bx_buffer; |
205 | int bx_buflen; |
206 | bool bx_running; |
207 | kcondvar_t bx_cv; |
208 | kmutex_t bx_lock; |
209 | }; |
210 | |
211 | struct uvideo_stream { |
212 | struct uvideo_softc *vs_parent; |
213 | struct usbd_interface *vs_iface; |
214 | uint8_t vs_ifaceno; |
215 | uint8_t vs_subtype; /* input or output */ |
216 | uint16_t vs_probelen; /* length of probe and |
217 | * commit data; varies |
218 | * depending on version |
219 | * of spec. */ |
220 | struct uvideo_format_list vs_formats; |
221 | struct uvideo_pixel_format_list vs_pixel_formats; |
222 | struct video_format *vs_default_format; |
223 | struct video_format vs_current_format; |
224 | |
225 | /* usb transfer details */ |
226 | uint8_t vs_xfer_type; |
227 | union { |
228 | struct uvideo_bulk_xfer bulk; |
229 | struct uvideo_isoc_xfer isoc; |
230 | } vs_xfer; |
231 | |
232 | int vs_frameno; /* toggles between 0 and 1 */ |
233 | |
234 | /* current video format */ |
235 | uint32_t vs_max_payload_size; |
236 | uint32_t vs_frame_interval; |
237 | SLIST_ENTRY(uvideo_stream) entries; |
238 | }; |
239 | SLIST_HEAD(uvideo_stream_list, uvideo_stream); |
240 | |
241 | struct uvideo_softc { |
242 | device_t sc_dev; /* base device */ |
243 | struct usbd_device *sc_udev; /* device */ |
244 | struct usbd_interface *sc_iface; /* interface handle */ |
245 | int sc_ifaceno; /* interface number */ |
246 | char *sc_devname; |
247 | |
248 | device_t sc_videodev; |
249 | |
250 | int sc_dying; |
251 | uvideo_state sc_state; |
252 | |
253 | uint8_t sc_nunits; |
254 | struct uvideo_unit **sc_unit; |
255 | |
256 | struct uvideo_stream *sc_stream_in; |
257 | |
258 | struct uvideo_stream_list sc_stream_list; |
259 | |
260 | char sc_businfo[32]; |
261 | }; |
262 | |
263 | int uvideo_match(device_t, cfdata_t, void *); |
264 | void uvideo_attach(device_t, device_t, void *); |
265 | int uvideo_detach(device_t, int); |
266 | void uvideo_childdet(device_t, device_t); |
267 | int uvideo_activate(device_t, enum devact); |
268 | |
269 | static int uvideo_open(void *, int); |
270 | static void uvideo_close(void *); |
271 | static const char * uvideo_get_devname(void *); |
272 | static const char * uvideo_get_businfo(void *); |
273 | |
274 | static int uvideo_enum_format(void *, uint32_t, struct video_format *); |
275 | static int uvideo_get_format(void *, struct video_format *); |
276 | static int uvideo_set_format(void *, struct video_format *); |
277 | static int uvideo_try_format(void *, struct video_format *); |
278 | static int uvideo_start_transfer(void *); |
279 | static int uvideo_stop_transfer(void *); |
280 | |
281 | static int uvideo_get_control_group(void *, |
282 | struct video_control_group *); |
283 | static int uvideo_set_control_group(void *, |
284 | const struct video_control_group *); |
285 | |
286 | static usbd_status uvideo_init_control( |
287 | struct uvideo_softc *, |
288 | const usb_interface_descriptor_t *, |
289 | usbd_desc_iter_t *); |
290 | static usbd_status uvideo_init_collection( |
291 | struct uvideo_softc *, |
292 | const usb_interface_descriptor_t *, |
293 | usbd_desc_iter_t *); |
294 | |
295 | /* Functions for unit & terminal descriptors */ |
296 | static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); |
297 | static usbd_status uvideo_unit_init(struct uvideo_unit *, |
298 | const uvideo_descriptor_t *); |
299 | static void uvideo_unit_free(struct uvideo_unit *); |
300 | static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, |
301 | uint8_t, |
302 | const uint8_t *); |
303 | static void uvideo_unit_free_controls(struct uvideo_unit *); |
304 | static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, |
305 | uint8_t, |
306 | const uint8_t *); |
307 | static void uvideo_unit_free_sources(struct uvideo_unit *); |
308 | |
309 | |
310 | |
311 | |
312 | /* Functions for uvideo_stream, primary unit associated with a video |
313 | * driver or device file. */ |
314 | static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, |
315 | uint8_t); |
316 | #if 0 |
317 | static struct uvideo_format * uvideo_stream_find_format( |
318 | struct uvideo_stream *, |
319 | uint8_t, uint8_t); |
320 | #endif |
321 | static struct uvideo_format * uvideo_stream_guess_format( |
322 | struct uvideo_stream *, |
323 | enum video_pixel_format, uint32_t, uint32_t); |
324 | static struct uvideo_stream * uvideo_stream_alloc(void); |
325 | static usbd_status uvideo_stream_init( |
326 | struct uvideo_stream *, |
327 | struct uvideo_softc *, |
328 | const usb_interface_descriptor_t *, |
329 | uint8_t); |
330 | static usbd_status uvideo_stream_init_desc( |
331 | struct uvideo_stream *, |
332 | const usb_interface_descriptor_t *, |
333 | usbd_desc_iter_t *); |
334 | static usbd_status uvideo_stream_init_frame_based_format( |
335 | struct uvideo_stream *, |
336 | const uvideo_descriptor_t *, |
337 | usbd_desc_iter_t *); |
338 | static void uvideo_stream_free(struct uvideo_stream *); |
339 | |
340 | static int uvideo_stream_start_xfer(struct uvideo_stream *); |
341 | static int uvideo_stream_stop_xfer(struct uvideo_stream *); |
342 | static usbd_status uvideo_stream_recv_process(struct uvideo_stream *, |
343 | uint8_t *, uint32_t); |
344 | static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); |
345 | static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); |
346 | static void uvideo_stream_recv_isoc_complete(struct usbd_xfer *, |
347 | void *, |
348 | usbd_status); |
349 | static void uvideo_stream_recv_bulk_transfer(void *); |
350 | |
351 | /* format probe and commit */ |
352 | #define uvideo_stream_probe(vs, act, data) \ |
353 | (uvideo_stream_probe_and_commit((vs), (act), \ |
354 | UVIDEO_VS_PROBE_CONTROL, (data))) |
355 | #define uvideo_stream_commit(vs, act, data) \ |
356 | (uvideo_stream_probe_and_commit((vs), (act), \ |
357 | UVIDEO_VS_COMMIT_CONTROL, (data))) |
358 | static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, |
359 | uint8_t, uint8_t, |
360 | void *); |
361 | static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); |
362 | |
363 | |
364 | static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); |
365 | static const usb_interface_descriptor_t * usb_desc_iter_next_interface( |
366 | usbd_desc_iter_t *); |
367 | static const usb_descriptor_t * usb_desc_iter_next_non_interface( |
368 | usbd_desc_iter_t *); |
369 | |
370 | static int usb_guid_cmp(const usb_guid_t *, const guid_t *); |
371 | |
372 | |
373 | CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), |
374 | uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, |
375 | uvideo_childdet); |
376 | |
377 | extern struct cfdriver uvideo_cd; |
378 | |
379 | |
380 | static const struct video_hw_if uvideo_hw_if = { |
381 | .open = uvideo_open, |
382 | .close = uvideo_close, |
383 | .get_devname = uvideo_get_devname, |
384 | .get_businfo = uvideo_get_businfo, |
385 | .enum_format = uvideo_enum_format, |
386 | .get_format = uvideo_get_format, |
387 | .set_format = uvideo_set_format, |
388 | .try_format = uvideo_try_format, |
389 | .start_transfer = uvideo_start_transfer, |
390 | .stop_transfer = uvideo_stop_transfer, |
391 | .control_iter_init = NULL, |
392 | .control_iter_next = NULL, |
393 | .get_control_desc_group = NULL, |
394 | .get_control_group = uvideo_get_control_group, |
395 | .set_control_group = uvideo_set_control_group, |
396 | }; |
397 | |
398 | #ifdef UVIDEO_DEBUG |
399 | /* Some functions to print out descriptors. Mostly useless other than |
400 | * debugging/exploration purposes. */ |
401 | static void usb_guid_print(const usb_guid_t *); |
402 | static void print_descriptor(const usb_descriptor_t *); |
403 | static void print_interface_descriptor(const usb_interface_descriptor_t *); |
404 | static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); |
405 | |
406 | static void print_vc_descriptor(const usb_descriptor_t *); |
407 | static void print_vs_descriptor(const usb_descriptor_t *); |
408 | |
409 | static void print_vc_header_descriptor( |
410 | const uvideo_vc_header_descriptor_t *); |
411 | static void print_input_terminal_descriptor( |
412 | const uvideo_input_terminal_descriptor_t *); |
413 | static void print_output_terminal_descriptor( |
414 | const uvideo_output_terminal_descriptor_t *); |
415 | static void print_camera_terminal_descriptor( |
416 | const uvideo_camera_terminal_descriptor_t *); |
417 | static void print_selector_unit_descriptor( |
418 | const uvideo_selector_unit_descriptor_t *); |
419 | static void print_processing_unit_descriptor( |
420 | const uvideo_processing_unit_descriptor_t *); |
421 | static void print_extension_unit_descriptor( |
422 | const uvideo_extension_unit_descriptor_t *); |
423 | static void print_interrupt_endpoint_descriptor( |
424 | const uvideo_vc_interrupt_endpoint_descriptor_t *); |
425 | |
426 | static void print_vs_input_header_descriptor( |
427 | const uvideo_vs_input_header_descriptor_t *); |
428 | static void print_vs_output_header_descriptor( |
429 | const uvideo_vs_output_header_descriptor_t *); |
430 | |
431 | static void print_vs_format_uncompressed_descriptor( |
432 | const uvideo_vs_format_uncompressed_descriptor_t *); |
433 | static void print_vs_frame_uncompressed_descriptor( |
434 | const uvideo_vs_frame_uncompressed_descriptor_t *); |
435 | static void print_vs_format_mjpeg_descriptor( |
436 | const uvideo_vs_format_mjpeg_descriptor_t *); |
437 | static void print_vs_frame_mjpeg_descriptor( |
438 | const uvideo_vs_frame_mjpeg_descriptor_t *); |
439 | static void print_vs_format_dv_descriptor( |
440 | const uvideo_vs_format_dv_descriptor_t *); |
441 | #endif /* !UVIDEO_DEBUG */ |
442 | |
443 | #define GET(type, descp, field) (((const type *)(descp))->field) |
444 | #define GETP(type, descp, field) (&(((const type *)(descp))->field)) |
445 | |
446 | /* Given a format descriptor and frame descriptor, copy values common |
447 | * to all formats into a struct uvideo_format. */ |
448 | #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ |
449 | frame_type, frame_desc, \ |
450 | format) \ |
451 | do { \ |
452 | UVIDEO_FORMAT_SET_FORMAT_INDEX( \ |
453 | format, \ |
454 | GET(format_type, format_desc, bFormatIndex)); \ |
455 | UVIDEO_FORMAT_SET_FRAME_INDEX( \ |
456 | format, \ |
457 | GET(frame_type, frame_desc, bFrameIndex)); \ |
458 | format->format.width = \ |
459 | UGETW(GET(frame_type, frame_desc, wWidth)); \ |
460 | format->format.height = \ |
461 | UGETW(GET(frame_type, frame_desc, wHeight)); \ |
462 | format->format.aspect_x = \ |
463 | GET(format_type, format_desc, bAspectRatioX); \ |
464 | format->format.aspect_y = \ |
465 | GET(format_type, format_desc, bAspectRatioY); \ |
466 | } while (0) |
467 | |
468 | |
469 | int |
470 | uvideo_match(device_t parent, cfdata_t match, void *aux) |
471 | { |
472 | struct usbif_attach_arg *uiaa = aux; |
473 | |
474 | /* TODO: May need to change in the future to work with |
475 | * Interface Association Descriptor. */ |
476 | |
477 | /* Trigger on the Video Control Interface which must be present */ |
478 | if (uiaa->uiaa_class == UICLASS_VIDEO && |
479 | uiaa->uiaa_subclass == UISUBCLASS_VIDEOCONTROL) |
480 | return UMATCH_IFACECLASS_IFACESUBCLASS; |
481 | |
482 | return UMATCH_NONE; |
483 | } |
484 | |
485 | void |
486 | uvideo_attach(device_t parent, device_t self, void *aux) |
487 | { |
488 | struct uvideo_softc *sc = device_private(self); |
489 | struct usbif_attach_arg *uiaa = aux; |
490 | usbd_desc_iter_t iter; |
491 | const usb_interface_descriptor_t *ifdesc; |
492 | struct uvideo_stream *vs; |
493 | usbd_status err; |
494 | uint8_t ifaceidx; |
495 | |
496 | sc->sc_dev = self; |
497 | |
498 | sc->sc_devname = usbd_devinfo_alloc(uiaa->uiaa_device, 0); |
499 | |
500 | aprint_naive("\n" ); |
501 | aprint_normal(": %s\n" , sc->sc_devname); |
502 | |
503 | sc->sc_udev = uiaa->uiaa_device; |
504 | sc->sc_iface = uiaa->uiaa_iface; |
505 | sc->sc_ifaceno = uiaa->uiaa_ifaceno; |
506 | sc->sc_dying = 0; |
507 | sc->sc_state = UVIDEO_STATE_CLOSED; |
508 | SLIST_INIT(&sc->sc_stream_list); |
509 | snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x" , |
510 | sc->sc_udev->ud_cookie.cookie); |
511 | |
512 | #ifdef UVIDEO_DEBUG |
513 | /* Debugging dump of descriptors. TODO: move this to userspace |
514 | * via a custom IOCTL or something. */ |
515 | const usb_descriptor_t *desc; |
516 | usb_desc_iter_init(sc->sc_udev, &iter); |
517 | while ((desc = usb_desc_iter_next(&iter)) != NULL) { |
518 | /* print out all descriptors */ |
519 | printf("uvideo_attach: " ); |
520 | print_descriptor(desc); |
521 | } |
522 | #endif /* !UVIDEO_DEBUG */ |
523 | |
524 | /* iterate through interface descriptors and initialize softc */ |
525 | usb_desc_iter_init(sc->sc_udev, &iter); |
526 | for (ifaceidx = 0; |
527 | (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; |
528 | ++ifaceidx) |
529 | { |
530 | if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { |
531 | DPRINTFN(50, ("uvideo_attach: " |
532 | "ignoring non-uvc interface: " |
533 | "len=%d type=0x%02x " |
534 | "class=0x%02x subclass=0x%02x\n" , |
535 | ifdesc->bLength, |
536 | ifdesc->bDescriptorType, |
537 | ifdesc->bInterfaceClass, |
538 | ifdesc->bInterfaceSubClass)); |
539 | continue; |
540 | } |
541 | |
542 | switch (ifdesc->bInterfaceSubClass) { |
543 | case UISUBCLASS_VIDEOCONTROL: |
544 | err = uvideo_init_control(sc, ifdesc, &iter); |
545 | if (err != USBD_NORMAL_COMPLETION) { |
546 | DPRINTF(("uvideo_attach: error with interface " |
547 | "%d, VideoControl, " |
548 | "descriptor len=%d type=0x%02x: " |
549 | "%s (%d)\n" , |
550 | ifdesc->bInterfaceNumber, |
551 | ifdesc->bLength, |
552 | ifdesc->bDescriptorType, |
553 | usbd_errstr(err), err)); |
554 | } |
555 | break; |
556 | case UISUBCLASS_VIDEOSTREAMING: |
557 | vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); |
558 | if (vs == NULL) { |
559 | vs = uvideo_stream_alloc(); |
560 | if (vs == NULL) { |
561 | DPRINTF(("uvideo_attach: " |
562 | "failed to alloc stream\n" )); |
563 | err = USBD_NOMEM; |
564 | goto bad; |
565 | } |
566 | err = uvideo_stream_init(vs, sc, ifdesc, |
567 | ifaceidx); |
568 | if (err != USBD_NORMAL_COMPLETION) { |
569 | DPRINTF(("uvideo_attach: " |
570 | "error initializing stream: " |
571 | "%s (%d)\n" , |
572 | usbd_errstr(err), err)); |
573 | goto bad; |
574 | } |
575 | } |
576 | err = uvideo_stream_init_desc(vs, ifdesc, &iter); |
577 | if (err != USBD_NORMAL_COMPLETION) { |
578 | DPRINTF(("uvideo_attach: " |
579 | "error initializing stream descriptor: " |
580 | "%s (%d)\n" , |
581 | usbd_errstr(err), err)); |
582 | goto bad; |
583 | } |
584 | /* TODO: for now, set (each) stream to stream_in. */ |
585 | sc->sc_stream_in = vs; |
586 | break; |
587 | case UISUBCLASS_VIDEOCOLLECTION: |
588 | err = uvideo_init_collection(sc, ifdesc, &iter); |
589 | if (err != USBD_NORMAL_COMPLETION) { |
590 | DPRINTF(("uvideo_attach: error with interface " |
591 | "%d, VideoCollection, " |
592 | "descriptor len=%d type=0x%02x: " |
593 | "%s (%d)\n" , |
594 | ifdesc->bInterfaceNumber, |
595 | ifdesc->bLength, |
596 | ifdesc->bDescriptorType, |
597 | usbd_errstr(err), err)); |
598 | goto bad; |
599 | } |
600 | break; |
601 | default: |
602 | DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " |
603 | "subclass=0x%02x\n" , |
604 | ifdesc->bInterfaceSubClass)); |
605 | break; |
606 | } |
607 | |
608 | } |
609 | |
610 | |
611 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
612 | |
613 | if (!pmf_device_register(self, NULL, NULL)) |
614 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
615 | |
616 | sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); |
617 | DPRINTF(("uvideo_attach: attached video driver at %p\n" , |
618 | sc->sc_videodev)); |
619 | |
620 | return; |
621 | |
622 | bad: |
623 | if (err != USBD_NORMAL_COMPLETION) { |
624 | DPRINTF(("uvideo_attach: error: %s (%d)\n" , |
625 | usbd_errstr(err), err)); |
626 | } |
627 | return; |
628 | } |
629 | |
630 | |
631 | int |
632 | uvideo_activate(device_t self, enum devact act) |
633 | { |
634 | struct uvideo_softc *sc = device_private(self); |
635 | |
636 | switch (act) { |
637 | case DVACT_DEACTIVATE: |
638 | DPRINTF(("uvideo_activate: deactivating\n" )); |
639 | sc->sc_dying = 1; |
640 | return 0; |
641 | default: |
642 | return EOPNOTSUPP; |
643 | } |
644 | } |
645 | |
646 | |
647 | /* Detach child (video interface) */ |
648 | void |
649 | uvideo_childdet(device_t self, device_t child) |
650 | { |
651 | struct uvideo_softc *sc = device_private(self); |
652 | |
653 | KASSERT(sc->sc_videodev == child); |
654 | sc->sc_videodev = NULL; |
655 | } |
656 | |
657 | |
658 | int |
659 | uvideo_detach(device_t self, int flags) |
660 | { |
661 | struct uvideo_softc *sc; |
662 | struct uvideo_stream *vs; |
663 | int rv; |
664 | |
665 | sc = device_private(self); |
666 | rv = 0; |
667 | |
668 | sc->sc_dying = 1; |
669 | |
670 | pmf_device_deregister(self); |
671 | |
672 | /* TODO: close the device if it is currently opened? Or will |
673 | * close be called automatically? */ |
674 | |
675 | while (!SLIST_EMPTY(&sc->sc_stream_list)) { |
676 | vs = SLIST_FIRST(&sc->sc_stream_list); |
677 | SLIST_REMOVE_HEAD(&sc->sc_stream_list, entries); |
678 | uvideo_stream_stop_xfer(vs); |
679 | uvideo_stream_free(vs); |
680 | } |
681 | |
682 | #if 0 |
683 | /* Wait for outstanding request to complete. TODO: what is |
684 | * appropriate here? */ |
685 | usbd_delay_ms(sc->sc_udev, 1000); |
686 | #endif |
687 | |
688 | DPRINTFN(15, ("uvideo: detaching from %s\n" , |
689 | device_xname(sc->sc_dev))); |
690 | |
691 | if (sc->sc_videodev != NULL) |
692 | rv = config_detach(sc->sc_videodev, flags); |
693 | |
694 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
695 | |
696 | usbd_devinfo_free(sc->sc_devname); |
697 | |
698 | return rv; |
699 | } |
700 | |
701 | /* Search the stream list for a stream matching the interface number. |
702 | * This is an O(n) search, but most devices should have only one or at |
703 | * most two streams. */ |
704 | static struct uvideo_stream * |
705 | uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) |
706 | { |
707 | struct uvideo_stream *vs; |
708 | |
709 | SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { |
710 | if (vs->vs_ifaceno == ifaceno) |
711 | return vs; |
712 | } |
713 | |
714 | return NULL; |
715 | } |
716 | |
717 | /* Search the format list for the given format and frame index. This |
718 | * might be improved through indexing, but the format and frame count |
719 | * is unknown ahead of time (only after iterating through the |
720 | * usb device descriptors). */ |
721 | #if 0 |
722 | static struct uvideo_format * |
723 | uvideo_stream_find_format(struct uvideo_stream *vs, |
724 | uint8_t format_index, uint8_t frame_index) |
725 | { |
726 | struct uvideo_format *format; |
727 | |
728 | SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { |
729 | if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && |
730 | UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) |
731 | return format; |
732 | } |
733 | return NULL; |
734 | } |
735 | #endif |
736 | |
737 | static struct uvideo_format * |
738 | uvideo_stream_guess_format(struct uvideo_stream *vs, |
739 | enum video_pixel_format pixel_format, |
740 | uint32_t width, uint32_t height) |
741 | { |
742 | struct uvideo_format *format, *gformat = NULL; |
743 | |
744 | SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { |
745 | if (format->format.pixel_format != pixel_format) |
746 | continue; |
747 | if (format->format.width <= width && |
748 | format->format.height <= height) { |
749 | if (gformat == NULL || |
750 | (gformat->format.width < format->format.width && |
751 | gformat->format.height < format->format.height)) |
752 | gformat = format; |
753 | } |
754 | } |
755 | |
756 | return gformat; |
757 | } |
758 | |
759 | static struct uvideo_stream * |
760 | uvideo_stream_alloc(void) |
761 | { |
762 | return kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP); |
763 | } |
764 | |
765 | |
766 | static usbd_status |
767 | uvideo_init_control(struct uvideo_softc *sc, |
768 | const usb_interface_descriptor_t *ifdesc, |
769 | usbd_desc_iter_t *iter) |
770 | { |
771 | const usb_descriptor_t *desc; |
772 | const uvideo_descriptor_t *uvdesc; |
773 | usbd_desc_iter_t orig; |
774 | uint8_t i, j, nunits; |
775 | |
776 | /* save original iterator state */ |
777 | memcpy(&orig, iter, sizeof(orig)); |
778 | |
779 | /* count number of units and terminals */ |
780 | nunits = 0; |
781 | while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { |
782 | uvdesc = (const uvideo_descriptor_t *)desc; |
783 | |
784 | if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) |
785 | continue; |
786 | if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || |
787 | uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) |
788 | continue; |
789 | ++nunits; |
790 | } |
791 | |
792 | if (nunits == 0) { |
793 | DPRINTF(("uvideo_init_control: no units\n" )); |
794 | return USBD_NORMAL_COMPLETION; |
795 | } |
796 | |
797 | i = 0; |
798 | |
799 | /* allocate space for units */ |
800 | sc->sc_nunits = nunits; |
801 | sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); |
802 | if (sc->sc_unit == NULL) |
803 | goto enomem; |
804 | |
805 | /* restore original iterator state */ |
806 | memcpy(iter, &orig, sizeof(orig)); |
807 | |
808 | /* iterate again, initializing the units */ |
809 | while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { |
810 | uvdesc = (const uvideo_descriptor_t *)desc; |
811 | |
812 | if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) |
813 | continue; |
814 | if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || |
815 | uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) |
816 | continue; |
817 | |
818 | sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); |
819 | /* TODO: free other units before returning? */ |
820 | if (sc->sc_unit[i] == NULL) |
821 | goto enomem; |
822 | ++i; |
823 | } |
824 | |
825 | return USBD_NORMAL_COMPLETION; |
826 | |
827 | enomem: |
828 | if (sc->sc_unit != NULL) { |
829 | for (j = 0; j < i; ++j) { |
830 | uvideo_unit_free(sc->sc_unit[j]); |
831 | sc->sc_unit[j] = NULL; |
832 | } |
833 | kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); |
834 | sc->sc_unit = NULL; |
835 | } |
836 | sc->sc_nunits = 0; |
837 | |
838 | return USBD_NOMEM; |
839 | } |
840 | |
841 | static usbd_status |
842 | uvideo_init_collection(struct uvideo_softc *sc, |
843 | const usb_interface_descriptor_t *ifdesc, |
844 | usbd_desc_iter_t *iter) |
845 | { |
846 | DPRINTF(("uvideo: ignoring Video Collection\n" )); |
847 | return USBD_NORMAL_COMPLETION; |
848 | } |
849 | |
850 | /* Allocates space for and initializes a uvideo unit based on the |
851 | * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ |
852 | static struct uvideo_unit * |
853 | uvideo_unit_alloc(const uvideo_descriptor_t *desc) |
854 | { |
855 | struct uvideo_unit *vu; |
856 | usbd_status err; |
857 | |
858 | if (desc->bDescriptorType != UDESC_CS_INTERFACE) |
859 | return NULL; |
860 | |
861 | vu = kmem_alloc(sizeof(*vu), KM_SLEEP); |
862 | if (vu == NULL) |
863 | return NULL; |
864 | |
865 | err = uvideo_unit_init(vu, desc); |
866 | if (err != USBD_NORMAL_COMPLETION) { |
867 | DPRINTF(("uvideo_unit_alloc: error initializing unit: " |
868 | "%s (%d)\n" , usbd_errstr(err), err)); |
869 | kmem_free(vu, sizeof(*vu)); |
870 | return NULL; |
871 | } |
872 | |
873 | return vu; |
874 | } |
875 | |
876 | static usbd_status |
877 | uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) |
878 | { |
879 | struct uvideo_camera_terminal *ct; |
880 | struct uvideo_processing_unit *pu; |
881 | |
882 | const uvideo_input_terminal_descriptor_t *input; |
883 | const uvideo_camera_terminal_descriptor_t *camera; |
884 | const uvideo_selector_unit_descriptor_t *selector; |
885 | const uvideo_processing_unit_descriptor_t *processing; |
886 | const uvideo_extension_unit_descriptor_t *extension; |
887 | |
888 | memset(vu, 0, sizeof(*vu)); |
889 | |
890 | switch (desc->bDescriptorSubtype) { |
891 | case UDESC_INPUT_TERMINAL: |
892 | input = (const uvideo_input_terminal_descriptor_t *)desc; |
893 | switch (UGETW(input->wTerminalType)) { |
894 | case UVIDEO_ITT_CAMERA: |
895 | camera = |
896 | (const uvideo_camera_terminal_descriptor_t *)desc; |
897 | ct = &vu->u.vu_camera; |
898 | |
899 | ct->ct_objective_focal_min = |
900 | UGETW(camera->wObjectiveFocalLengthMin); |
901 | ct->ct_objective_focal_max = |
902 | UGETW(camera->wObjectiveFocalLengthMax); |
903 | ct->ct_ocular_focal_length = |
904 | UGETW(camera->wOcularFocalLength); |
905 | |
906 | uvideo_unit_alloc_controls(vu, camera->bControlSize, |
907 | camera->bmControls); |
908 | break; |
909 | default: |
910 | DPRINTF(("uvideo_unit_init: " |
911 | "unknown input terminal type 0x%04x\n" , |
912 | UGETW(input->wTerminalType))); |
913 | return USBD_INVAL; |
914 | } |
915 | break; |
916 | case UDESC_OUTPUT_TERMINAL: |
917 | break; |
918 | case UDESC_SELECTOR_UNIT: |
919 | selector = (const uvideo_selector_unit_descriptor_t *)desc; |
920 | |
921 | uvideo_unit_alloc_sources(vu, selector->bNrInPins, |
922 | selector->baSourceID); |
923 | break; |
924 | case UDESC_PROCESSING_UNIT: |
925 | processing = (const uvideo_processing_unit_descriptor_t *)desc; |
926 | pu = &vu->u.vu_processing; |
927 | |
928 | pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); |
929 | pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); |
930 | |
931 | uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); |
932 | uvideo_unit_alloc_controls(vu, processing->bControlSize, |
933 | processing->bmControls); |
934 | break; |
935 | case UDESC_EXTENSION_UNIT: |
936 | extension = (const uvideo_extension_unit_descriptor_t *)desc; |
937 | /* TODO: copy guid */ |
938 | |
939 | uvideo_unit_alloc_sources(vu, extension->bNrInPins, |
940 | extension->baSourceID); |
941 | uvideo_unit_alloc_controls(vu, XU_GET_CONTROL_SIZE(extension), |
942 | XU_GET_CONTROLS(extension)); |
943 | break; |
944 | default: |
945 | DPRINTF(("uvideo_unit_alloc: unknown descriptor " |
946 | "type=0x%02x subtype=0x%02x\n" , |
947 | desc->bDescriptorType, desc->bDescriptorSubtype)); |
948 | return USBD_INVAL; |
949 | } |
950 | |
951 | return USBD_NORMAL_COMPLETION; |
952 | } |
953 | |
954 | static void |
955 | uvideo_unit_free(struct uvideo_unit *vu) |
956 | { |
957 | uvideo_unit_free_sources(vu); |
958 | uvideo_unit_free_controls(vu); |
959 | kmem_free(vu, sizeof(*vu)); |
960 | } |
961 | |
962 | static usbd_status |
963 | uvideo_unit_alloc_sources(struct uvideo_unit *vu, |
964 | uint8_t nsrcs, const uint8_t *src_ids) |
965 | { |
966 | vu->vu_nsrcs = nsrcs; |
967 | |
968 | if (nsrcs == 0) { |
969 | /* do nothing */ |
970 | } else if (nsrcs == 1) { |
971 | vu->s.vu_src_id = src_ids[0]; |
972 | } else { |
973 | vu->s.vu_src_id_ary = |
974 | kmem_alloc(sizeof(*vu->s.vu_src_id_ary) * nsrcs, KM_SLEEP); |
975 | if (vu->s.vu_src_id_ary == NULL) { |
976 | vu->vu_nsrcs = 0; |
977 | return USBD_NOMEM; |
978 | } |
979 | |
980 | memcpy(vu->s.vu_src_id_ary, src_ids, nsrcs); |
981 | } |
982 | |
983 | return USBD_NORMAL_COMPLETION; |
984 | } |
985 | |
986 | static void |
987 | uvideo_unit_free_sources(struct uvideo_unit *vu) |
988 | { |
989 | if (vu->vu_nsrcs == 1) |
990 | return; |
991 | |
992 | kmem_free(vu->s.vu_src_id_ary, |
993 | sizeof(*vu->s.vu_src_id_ary) * vu->vu_nsrcs); |
994 | vu->vu_nsrcs = 0; |
995 | vu->s.vu_src_id_ary = NULL; |
996 | } |
997 | |
998 | static usbd_status |
999 | uvideo_unit_alloc_controls(struct uvideo_unit *vu, uint8_t size, |
1000 | const uint8_t *controls) |
1001 | { |
1002 | vu->vu_controls = kmem_alloc(sizeof(*vu->vu_controls) * size, KM_SLEEP); |
1003 | if (vu->vu_controls == NULL) |
1004 | return USBD_NOMEM; |
1005 | |
1006 | vu->vu_control_size = size; |
1007 | memcpy(vu->vu_controls, controls, size); |
1008 | |
1009 | return USBD_NORMAL_COMPLETION; |
1010 | } |
1011 | |
1012 | static void |
1013 | uvideo_unit_free_controls(struct uvideo_unit *vu) |
1014 | { |
1015 | kmem_free(vu->vu_controls, |
1016 | sizeof(*vu->vu_controls) * vu->vu_control_size); |
1017 | vu->vu_controls = NULL; |
1018 | vu->vu_control_size = 0; |
1019 | } |
1020 | |
1021 | |
1022 | /* Initialize a stream from a Video Streaming interface |
1023 | * descriptor. Adds the stream to the stream_list in uvideo_softc. |
1024 | * This should be called once for new streams, and |
1025 | * uvideo_stream_init_desc() should then be called for this and each |
1026 | * additional interface with the same interface number. */ |
1027 | static usbd_status |
1028 | uvideo_stream_init(struct uvideo_stream *vs, |
1029 | struct uvideo_softc *sc, |
1030 | const usb_interface_descriptor_t *ifdesc, |
1031 | uint8_t idx) |
1032 | { |
1033 | uWord len; |
1034 | usbd_status err; |
1035 | |
1036 | SLIST_INSERT_HEAD(&sc->sc_stream_list, vs, entries); |
1037 | memset(vs, 0, sizeof(*vs)); |
1038 | vs->vs_parent = sc; |
1039 | vs->vs_ifaceno = ifdesc->bInterfaceNumber; |
1040 | vs->vs_subtype = 0; |
1041 | SIMPLEQ_INIT(&vs->vs_formats); |
1042 | SIMPLEQ_INIT(&vs->vs_pixel_formats); |
1043 | vs->vs_default_format = NULL; |
1044 | vs->vs_current_format.priv = -1; |
1045 | vs->vs_xfer_type = 0; |
1046 | |
1047 | err = usbd_device2interface_handle(sc->sc_udev, idx, &vs->vs_iface); |
1048 | if (err != USBD_NORMAL_COMPLETION) { |
1049 | DPRINTF(("uvideo_stream_init: " |
1050 | "error getting vs interface: " |
1051 | "%s (%d)\n" , |
1052 | usbd_errstr(err), err)); |
1053 | return err; |
1054 | } |
1055 | |
1056 | /* For Xbox Live Vision camera, linux-uvc folk say we need to |
1057 | * set an alternate interface and wait ~3 seconds prior to |
1058 | * doing the format probe/commit. We set to alternate |
1059 | * interface 0, which is the default, zero bandwidth |
1060 | * interface. This should not have adverse affects on other |
1061 | * cameras. Errors are ignored. */ |
1062 | err = usbd_set_interface(vs->vs_iface, 0); |
1063 | if (err != USBD_NORMAL_COMPLETION) { |
1064 | DPRINTF(("uvideo_stream_init: error setting alt interface: " |
1065 | "%s (%d)\n" , |
1066 | usbd_errstr(err), err)); |
1067 | } |
1068 | |
1069 | /* Initialize probe and commit data size. This value is |
1070 | * dependent on the version of the spec the hardware |
1071 | * implements. */ |
1072 | err = uvideo_stream_probe(vs, UR_GET_LEN, &len); |
1073 | if (err != USBD_NORMAL_COMPLETION) { |
1074 | DPRINTF(("uvideo_stream_init: " |
1075 | "error getting probe data len: " |
1076 | "%s (%d)\n" , |
1077 | usbd_errstr(err), err)); |
1078 | vs->vs_probelen = 26; /* conservative v1.0 length */ |
1079 | } else if (UGETW(len) <= sizeof(uvideo_probe_and_commit_data_t)) { |
1080 | DPRINTFN(15,("uvideo_stream_init: probelen=%d\n" , UGETW(len))); |
1081 | vs->vs_probelen = UGETW(len); |
1082 | } else { |
1083 | DPRINTFN(15,("uvideo_stream_init: device returned invalid probe" |
1084 | " len %d, using default\n" , UGETW(len))); |
1085 | vs->vs_probelen = 26; |
1086 | } |
1087 | |
1088 | return USBD_NORMAL_COMPLETION; |
1089 | } |
1090 | |
1091 | /* Further stream initialization based on a Video Streaming interface |
1092 | * descriptor and following descriptors belonging to that interface. |
1093 | * Iterates through all descriptors belonging to this particular |
1094 | * interface descriptor, modifying the iterator. This may be called |
1095 | * multiple times because there may be several alternate interfaces |
1096 | * associated with the same interface number. */ |
1097 | static usbd_status |
1098 | uvideo_stream_init_desc(struct uvideo_stream *vs, |
1099 | const usb_interface_descriptor_t *ifdesc, |
1100 | usbd_desc_iter_t *iter) |
1101 | { |
1102 | const usb_descriptor_t *desc; |
1103 | const uvideo_descriptor_t *uvdesc; |
1104 | struct uvideo_bulk_xfer *bx; |
1105 | struct uvideo_isoc_xfer *ix; |
1106 | struct uvideo_alternate *alt; |
1107 | uint8_t xfer_type, xfer_dir; |
1108 | uint8_t bmAttributes, bEndpointAddress; |
1109 | int i; |
1110 | |
1111 | /* Iterate until the next interface descriptor. All |
1112 | * descriptors until then belong to this streaming |
1113 | * interface. */ |
1114 | while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { |
1115 | uvdesc = (const uvideo_descriptor_t *)desc; |
1116 | |
1117 | switch (uvdesc->bDescriptorType) { |
1118 | case UDESC_ENDPOINT: |
1119 | bmAttributes = GET(usb_endpoint_descriptor_t, |
1120 | desc, bmAttributes); |
1121 | bEndpointAddress = GET(usb_endpoint_descriptor_t, |
1122 | desc, bEndpointAddress); |
1123 | xfer_type = UE_GET_XFERTYPE(bmAttributes); |
1124 | xfer_dir = UE_GET_DIR(bEndpointAddress); |
1125 | if (xfer_type == UE_BULK && xfer_dir == UE_DIR_IN) { |
1126 | bx = &vs->vs_xfer.bulk; |
1127 | if (vs->vs_xfer_type == 0) { |
1128 | DPRINTFN(15, ("uvideo_attach: " |
1129 | "BULK stream *\n" )); |
1130 | vs->vs_xfer_type = UE_BULK; |
1131 | bx->bx_endpt = bEndpointAddress; |
1132 | DPRINTF(("uvideo_attach: BULK " |
1133 | "endpoint %x\n" , |
1134 | bx->bx_endpt)); |
1135 | bx->bx_running = false; |
1136 | cv_init(&bx->bx_cv, |
1137 | device_xname(vs->vs_parent->sc_dev) |
1138 | ); |
1139 | mutex_init(&bx->bx_lock, |
1140 | MUTEX_DEFAULT, IPL_NONE); |
1141 | } |
1142 | } else if (xfer_type == UE_ISOCHRONOUS) { |
1143 | ix = &vs->vs_xfer.isoc; |
1144 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
1145 | ix->ix_i[i].i_ix = ix; |
1146 | ix->ix_i[i].i_vs = vs; |
1147 | } |
1148 | if (vs->vs_xfer_type == 0) { |
1149 | DPRINTFN(15, ("uvideo_attach: " |
1150 | "ISOC stream *\n" )); |
1151 | SLIST_INIT(&ix->ix_altlist); |
1152 | vs->vs_xfer_type = UE_ISOCHRONOUS; |
1153 | ix->ix_endpt = |
1154 | GET(usb_endpoint_descriptor_t, |
1155 | desc, bEndpointAddress); |
1156 | } |
1157 | |
1158 | alt = kmem_alloc(sizeof(*alt), KM_NOSLEEP); |
1159 | if (alt == NULL) |
1160 | return USBD_NOMEM; |
1161 | |
1162 | alt->altno = ifdesc->bAlternateSetting; |
1163 | alt->interval = |
1164 | GET(usb_endpoint_descriptor_t, |
1165 | desc, bInterval); |
1166 | |
1167 | alt->max_packet_size = |
1168 | UE_GET_SIZE(UGETW(GET(usb_endpoint_descriptor_t, |
1169 | desc, wMaxPacketSize))); |
1170 | alt->max_packet_size *= |
1171 | (UE_GET_TRANS(UGETW(GET( |
1172 | usb_endpoint_descriptor_t, desc, |
1173 | wMaxPacketSize)))) + 1; |
1174 | |
1175 | SLIST_INSERT_HEAD(&ix->ix_altlist, |
1176 | alt, entries); |
1177 | } |
1178 | break; |
1179 | case UDESC_CS_INTERFACE: |
1180 | if (ifdesc->bAlternateSetting != 0) { |
1181 | DPRINTF(("uvideo_stream_init_alternate: " |
1182 | "unexpected class-specific descriptor " |
1183 | "len=%d type=0x%02x subtype=0x%02x\n" , |
1184 | uvdesc->bLength, |
1185 | uvdesc->bDescriptorType, |
1186 | uvdesc->bDescriptorSubtype)); |
1187 | break; |
1188 | } |
1189 | |
1190 | switch (uvdesc->bDescriptorSubtype) { |
1191 | case UDESC_VS_INPUT_HEADER: |
1192 | vs->vs_subtype = UDESC_VS_INPUT_HEADER; |
1193 | break; |
1194 | case UDESC_VS_OUTPUT_HEADER: |
1195 | /* TODO: handle output stream */ |
1196 | DPRINTF(("uvideo: VS output not implemented\n" )); |
1197 | vs->vs_subtype = UDESC_VS_OUTPUT_HEADER; |
1198 | return USBD_INVAL; |
1199 | case UDESC_VS_FORMAT_UNCOMPRESSED: |
1200 | case UDESC_VS_FORMAT_FRAME_BASED: |
1201 | case UDESC_VS_FORMAT_MJPEG: |
1202 | uvideo_stream_init_frame_based_format(vs, |
1203 | uvdesc, |
1204 | iter); |
1205 | break; |
1206 | case UDESC_VS_FORMAT_MPEG2TS: |
1207 | case UDESC_VS_FORMAT_DV: |
1208 | case UDESC_VS_FORMAT_STREAM_BASED: |
1209 | default: |
1210 | DPRINTF(("uvideo: unimplemented VS CS " |
1211 | "descriptor len=%d type=0x%02x " |
1212 | "subtype=0x%02x\n" , |
1213 | uvdesc->bLength, |
1214 | uvdesc->bDescriptorType, |
1215 | uvdesc->bDescriptorSubtype)); |
1216 | break; |
1217 | } |
1218 | break; |
1219 | default: |
1220 | DPRINTF(("uvideo_stream_init_desc: " |
1221 | "unknown descriptor " |
1222 | "len=%d type=0x%02x\n" , |
1223 | uvdesc->bLength, |
1224 | uvdesc->bDescriptorType)); |
1225 | break; |
1226 | } |
1227 | } |
1228 | |
1229 | return USBD_NORMAL_COMPLETION; |
1230 | } |
1231 | |
1232 | /* Finialize and free memory associated with this stream. */ |
1233 | static void |
1234 | uvideo_stream_free(struct uvideo_stream *vs) |
1235 | { |
1236 | struct uvideo_alternate *alt; |
1237 | struct uvideo_pixel_format *pixel_format; |
1238 | struct uvideo_format *format; |
1239 | |
1240 | /* free linked list of alternate interfaces */ |
1241 | if (vs->vs_xfer_type == UE_ISOCHRONOUS) { |
1242 | while (!SLIST_EMPTY(&vs->vs_xfer.isoc.ix_altlist)) { |
1243 | alt = SLIST_FIRST(&vs->vs_xfer.isoc.ix_altlist); |
1244 | SLIST_REMOVE_HEAD(&vs->vs_xfer.isoc.ix_altlist, |
1245 | entries); |
1246 | kmem_free(alt, sizeof(*alt)); |
1247 | } |
1248 | } |
1249 | |
1250 | /* free linked-list of formats and pixel formats */ |
1251 | while ((format = SIMPLEQ_FIRST(&vs->vs_formats)) != NULL) { |
1252 | SIMPLEQ_REMOVE_HEAD(&vs->vs_formats, entries); |
1253 | kmem_free(format, sizeof(struct uvideo_format)); |
1254 | } |
1255 | while ((pixel_format = SIMPLEQ_FIRST(&vs->vs_pixel_formats)) != NULL) { |
1256 | SIMPLEQ_REMOVE_HEAD(&vs->vs_pixel_formats, entries); |
1257 | kmem_free(pixel_format, sizeof(struct uvideo_pixel_format)); |
1258 | } |
1259 | |
1260 | kmem_free(vs, sizeof(*vs)); |
1261 | } |
1262 | |
1263 | |
1264 | static usbd_status |
1265 | uvideo_stream_init_frame_based_format(struct uvideo_stream *vs, |
1266 | const uvideo_descriptor_t *format_desc, |
1267 | usbd_desc_iter_t *iter) |
1268 | { |
1269 | struct uvideo_pixel_format *pformat, *pfiter; |
1270 | enum video_pixel_format pixel_format; |
1271 | struct uvideo_format *format; |
1272 | const uvideo_descriptor_t *uvdesc; |
1273 | uint8_t subtype, default_index, index; |
1274 | uint32_t frame_interval; |
1275 | const usb_guid_t *guid; |
1276 | |
1277 | pixel_format = VIDEO_FORMAT_UNDEFINED; |
1278 | |
1279 | switch (format_desc->bDescriptorSubtype) { |
1280 | case UDESC_VS_FORMAT_UNCOMPRESSED: |
1281 | subtype = UDESC_VS_FRAME_UNCOMPRESSED; |
1282 | default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, |
1283 | format_desc, |
1284 | bDefaultFrameIndex); |
1285 | guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, |
1286 | format_desc, |
1287 | guidFormat); |
1288 | if (usb_guid_cmp(guid, &uvideo_guid_format_yuy2) == 0) |
1289 | pixel_format = VIDEO_FORMAT_YUY2; |
1290 | else if (usb_guid_cmp(guid, &uvideo_guid_format_nv12) == 0) |
1291 | pixel_format = VIDEO_FORMAT_NV12; |
1292 | else if (usb_guid_cmp(guid, &uvideo_guid_format_uyvy) == 0) |
1293 | pixel_format = VIDEO_FORMAT_UYVY; |
1294 | break; |
1295 | case UDESC_VS_FORMAT_FRAME_BASED: |
1296 | subtype = UDESC_VS_FRAME_FRAME_BASED; |
1297 | default_index = GET(uvideo_format_frame_based_descriptor_t, |
1298 | format_desc, |
1299 | bDefaultFrameIndex); |
1300 | break; |
1301 | case UDESC_VS_FORMAT_MJPEG: |
1302 | subtype = UDESC_VS_FRAME_MJPEG; |
1303 | default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, |
1304 | format_desc, |
1305 | bDefaultFrameIndex); |
1306 | pixel_format = VIDEO_FORMAT_MJPEG; |
1307 | break; |
1308 | default: |
1309 | DPRINTF(("uvideo: unknown frame based format %d\n" , |
1310 | format_desc->bDescriptorSubtype)); |
1311 | return USBD_INVAL; |
1312 | } |
1313 | |
1314 | pformat = NULL; |
1315 | SIMPLEQ_FOREACH(pfiter, &vs->vs_pixel_formats, entries) { |
1316 | if (pfiter->pixel_format == pixel_format) { |
1317 | pformat = pfiter; |
1318 | break; |
1319 | } |
1320 | } |
1321 | if (pixel_format != VIDEO_FORMAT_UNDEFINED && pformat == NULL) { |
1322 | pformat = kmem_zalloc(sizeof(*pformat), KM_SLEEP); |
1323 | pformat->pixel_format = pixel_format; |
1324 | DPRINTF(("uvideo: Adding pixel format %d\n" , |
1325 | pixel_format)); |
1326 | SIMPLEQ_INSERT_TAIL(&vs->vs_pixel_formats, |
1327 | pformat, entries); |
1328 | } |
1329 | |
1330 | /* Iterate through frame descriptors directly following the |
1331 | * format descriptor, and add a format to the format list for |
1332 | * each frame descriptor. */ |
1333 | while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && |
1334 | (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) |
1335 | { |
1336 | uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); |
1337 | |
1338 | format = kmem_zalloc(sizeof(struct uvideo_format), KM_SLEEP); |
1339 | if (format == NULL) { |
1340 | DPRINTF(("uvideo: failed to alloc video format\n" )); |
1341 | return USBD_NOMEM; |
1342 | } |
1343 | |
1344 | format->format.pixel_format = pixel_format; |
1345 | |
1346 | switch (format_desc->bDescriptorSubtype) { |
1347 | case UDESC_VS_FORMAT_UNCOMPRESSED: |
1348 | #ifdef UVIDEO_DEBUG |
1349 | if (pixel_format == VIDEO_FORMAT_UNDEFINED && |
1350 | uvideodebug) { |
1351 | guid = GETP( |
1352 | uvideo_vs_format_uncompressed_descriptor_t, |
1353 | format_desc, |
1354 | guidFormat); |
1355 | |
1356 | DPRINTF(("uvideo: format undefined " )); |
1357 | usb_guid_print(guid); |
1358 | DPRINTF(("\n" )); |
1359 | } |
1360 | #endif |
1361 | |
1362 | UVIDEO_FORMAT_INIT_FRAME_BASED( |
1363 | uvideo_vs_format_uncompressed_descriptor_t, |
1364 | format_desc, |
1365 | uvideo_vs_frame_uncompressed_descriptor_t, |
1366 | uvdesc, |
1367 | format); |
1368 | format->format.sample_size = |
1369 | UGETDW( |
1370 | GET(uvideo_vs_frame_uncompressed_descriptor_t, |
1371 | uvdesc, dwMaxVideoFrameBufferSize)); |
1372 | format->format.stride = |
1373 | format->format.sample_size / format->format.height; |
1374 | index = GET(uvideo_vs_frame_uncompressed_descriptor_t, |
1375 | uvdesc, |
1376 | bFrameIndex); |
1377 | frame_interval = |
1378 | UGETDW( |
1379 | GET(uvideo_vs_frame_uncompressed_descriptor_t, |
1380 | uvdesc, |
1381 | dwDefaultFrameInterval)); |
1382 | break; |
1383 | case UDESC_VS_FORMAT_MJPEG: |
1384 | UVIDEO_FORMAT_INIT_FRAME_BASED( |
1385 | uvideo_vs_format_mjpeg_descriptor_t, |
1386 | format_desc, |
1387 | uvideo_vs_frame_mjpeg_descriptor_t, |
1388 | uvdesc, |
1389 | format); |
1390 | format->format.sample_size = |
1391 | UGETDW( |
1392 | GET(uvideo_vs_frame_mjpeg_descriptor_t, |
1393 | uvdesc, dwMaxVideoFrameBufferSize)); |
1394 | format->format.stride = |
1395 | format->format.sample_size / format->format.height; |
1396 | index = GET(uvideo_vs_frame_mjpeg_descriptor_t, |
1397 | uvdesc, |
1398 | bFrameIndex); |
1399 | frame_interval = |
1400 | UGETDW( |
1401 | GET(uvideo_vs_frame_mjpeg_descriptor_t, |
1402 | uvdesc, |
1403 | dwDefaultFrameInterval)); |
1404 | break; |
1405 | case UDESC_VS_FORMAT_FRAME_BASED: |
1406 | format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; |
1407 | UVIDEO_FORMAT_INIT_FRAME_BASED( |
1408 | uvideo_format_frame_based_descriptor_t, |
1409 | format_desc, |
1410 | uvideo_frame_frame_based_descriptor_t, |
1411 | uvdesc, |
1412 | format); |
1413 | index = GET(uvideo_frame_frame_based_descriptor_t, |
1414 | uvdesc, |
1415 | bFrameIndex); |
1416 | format->format.stride = |
1417 | UGETDW( |
1418 | GET(uvideo_frame_frame_based_descriptor_t, |
1419 | uvdesc, dwBytesPerLine)); |
1420 | format->format.sample_size = |
1421 | format->format.stride * format->format.height; |
1422 | frame_interval = |
1423 | UGETDW( |
1424 | GET(uvideo_frame_frame_based_descriptor_t, |
1425 | uvdesc, dwDefaultFrameInterval)); |
1426 | break; |
1427 | default: |
1428 | /* shouldn't ever get here */ |
1429 | DPRINTF(("uvideo: unknown frame based format %d\n" , |
1430 | format_desc->bDescriptorSubtype)); |
1431 | kmem_free(format, sizeof(struct uvideo_format)); |
1432 | return USBD_INVAL; |
1433 | } |
1434 | |
1435 | DPRINTF(("uvideo: found format (index %d) type %d " |
1436 | "size %ux%u size %u stride %u interval %u\n" , |
1437 | index, format->format.pixel_format, format->format.width, |
1438 | format->format.height, format->format.sample_size, |
1439 | format->format.stride, frame_interval)); |
1440 | |
1441 | SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); |
1442 | |
1443 | if (vs->vs_default_format == NULL && index == default_index |
1444 | #ifdef UVIDEO_DISABLE_MJPEG |
1445 | && subtype != UDESC_VS_FRAME_MJPEG |
1446 | #endif |
1447 | ) { |
1448 | DPRINTF((" ^ picking this one\n" )); |
1449 | vs->vs_default_format = &format->format; |
1450 | vs->vs_frame_interval = frame_interval; |
1451 | } |
1452 | |
1453 | } |
1454 | |
1455 | return USBD_NORMAL_COMPLETION; |
1456 | } |
1457 | |
1458 | static int |
1459 | uvideo_stream_start_xfer(struct uvideo_stream *vs) |
1460 | { |
1461 | struct uvideo_softc *sc = vs->vs_parent; |
1462 | struct uvideo_bulk_xfer *bx; |
1463 | struct uvideo_isoc_xfer *ix; |
1464 | uint32_t vframe_len; /* rough bytes per video frame */ |
1465 | uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ |
1466 | uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ |
1467 | int i, ret; |
1468 | int error; |
1469 | |
1470 | struct uvideo_alternate *alt, *alt_maybe; |
1471 | usbd_status err; |
1472 | |
1473 | switch (vs->vs_xfer_type) { |
1474 | case UE_BULK: |
1475 | ret = 0; |
1476 | bx = &vs->vs_xfer.bulk; |
1477 | |
1478 | err = usbd_open_pipe(vs->vs_iface, bx->bx_endpt, 0, |
1479 | &bx->bx_pipe); |
1480 | if (err != USBD_NORMAL_COMPLETION) { |
1481 | DPRINTF(("uvideo: error opening pipe: %s (%d)\n" , |
1482 | usbd_errstr(err), err)); |
1483 | return EIO; |
1484 | } |
1485 | DPRINTF(("uvideo: pipe %p\n" , bx->bx_pipe)); |
1486 | |
1487 | error = usbd_create_xfer(bx->bx_pipe, vs->vs_max_payload_size, |
1488 | USBD_SHORT_XFER_OK, 0, &bx->bx_xfer); |
1489 | if (error) { |
1490 | DPRINTF(("uvideo: couldn't allocate xfer\n" )); |
1491 | return error; |
1492 | } |
1493 | DPRINTF(("uvideo: xfer %p\n" , bx->bx_xfer)); |
1494 | |
1495 | bx->bx_buflen = vs->vs_max_payload_size; |
1496 | bx->bx_buffer = usbd_get_buffer(bx->bx_xfer); |
1497 | |
1498 | mutex_enter(&bx->bx_lock); |
1499 | if (bx->bx_running == false) { |
1500 | bx->bx_running = true; |
1501 | ret = kthread_create(PRI_UVIDEO, 0, NULL, |
1502 | uvideo_stream_recv_bulk_transfer, vs, |
1503 | NULL, "%s" , device_xname(sc->sc_dev)); |
1504 | if (ret) { |
1505 | DPRINTF(("uvideo: couldn't create kthread:" |
1506 | " %d\n" , err)); |
1507 | bx->bx_running = false; |
1508 | mutex_exit(&bx->bx_lock); |
1509 | return err; |
1510 | } |
1511 | } else |
1512 | aprint_error_dev(sc->sc_dev, |
1513 | "transfer already in progress\n" ); |
1514 | mutex_exit(&bx->bx_lock); |
1515 | |
1516 | DPRINTF(("uvideo: thread created\n" )); |
1517 | |
1518 | return 0; |
1519 | case UE_ISOCHRONOUS: |
1520 | ix = &vs->vs_xfer.isoc; |
1521 | |
1522 | /* Choose an alternate interface most suitable for |
1523 | * this format. Choose the smallest size that can |
1524 | * contain max_payload_size. |
1525 | * |
1526 | * It is assumed that the list is sorted in descending |
1527 | * order from largest to smallest packet size. |
1528 | * |
1529 | * TODO: what should the strategy be for choosing an |
1530 | * alt interface? |
1531 | */ |
1532 | alt = NULL; |
1533 | SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { |
1534 | /* TODO: define "packet" and "payload". I think |
1535 | * several packets can make up one payload which would |
1536 | * call into question this method of selecting an |
1537 | * alternate interface... */ |
1538 | |
1539 | if (alt_maybe->max_packet_size > vs->vs_max_payload_size) |
1540 | continue; |
1541 | |
1542 | if (alt == NULL || |
1543 | alt_maybe->max_packet_size >= alt->max_packet_size) |
1544 | alt = alt_maybe; |
1545 | } |
1546 | |
1547 | if (alt == NULL) { |
1548 | DPRINTF(("uvideo_stream_start_xfer: " |
1549 | "no suitable alternate interface found\n" )); |
1550 | return EINVAL; |
1551 | } |
1552 | |
1553 | DPRINTFN(15,("uvideo_stream_start_xfer: " |
1554 | "choosing alternate interface " |
1555 | "%d wMaxPacketSize=%d bInterval=%d\n" , |
1556 | alt->altno, alt->max_packet_size, alt->interval)); |
1557 | |
1558 | err = usbd_set_interface(vs->vs_iface, alt->altno); |
1559 | if (err != USBD_NORMAL_COMPLETION) { |
1560 | DPRINTF(("uvideo_stream_start_xfer: " |
1561 | "error setting alt interface: %s (%d)\n" , |
1562 | usbd_errstr(err), err)); |
1563 | return EIO; |
1564 | } |
1565 | |
1566 | /* TODO: "packet" not same as frame */ |
1567 | vframe_len = vs->vs_current_format.sample_size; |
1568 | uframe_len = alt->max_packet_size; |
1569 | nframes = (vframe_len + uframe_len - 1) / uframe_len; |
1570 | nframes = (nframes + 7) & ~7; /*round up for ehci inefficiency*/ |
1571 | DPRINTF(("uvideo_stream_start_xfer: nframes=%d\n" , nframes)); |
1572 | |
1573 | ix->ix_nframes = nframes; |
1574 | ix->ix_uframe_len = uframe_len; |
1575 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
1576 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
1577 | isoc->i_frlengths = |
1578 | kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, |
1579 | KM_SLEEP); |
1580 | if (isoc->i_frlengths == NULL) { |
1581 | DPRINTF(("uvideo: failed to alloc frlengths:" |
1582 | "%s (%d)\n" , |
1583 | usbd_errstr(err), err)); |
1584 | return ENOMEM; |
1585 | } |
1586 | } |
1587 | |
1588 | err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, |
1589 | USBD_EXCLUSIVE_USE, &ix->ix_pipe); |
1590 | if (err != USBD_NORMAL_COMPLETION) { |
1591 | DPRINTF(("uvideo: error opening pipe: %s (%d)\n" , |
1592 | usbd_errstr(err), err)); |
1593 | return EIO; |
1594 | } |
1595 | |
1596 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
1597 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
1598 | error = usbd_create_xfer(ix->ix_pipe, |
1599 | nframes * uframe_len, 0, ix->ix_nframes, |
1600 | &isoc->i_xfer); |
1601 | if (error) { |
1602 | DPRINTF(("uvideo: " |
1603 | "couldn't allocate xfer (%d)\n" , error)); |
1604 | return error; |
1605 | } |
1606 | |
1607 | isoc->i_buf = usbd_get_buffer(isoc->i_xfer); |
1608 | } |
1609 | |
1610 | uvideo_stream_recv_isoc_start(vs); |
1611 | |
1612 | return 0; |
1613 | default: |
1614 | /* should never get here */ |
1615 | DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n" , |
1616 | vs->vs_xfer_type)); |
1617 | return EINVAL; |
1618 | } |
1619 | } |
1620 | |
1621 | static int |
1622 | uvideo_stream_stop_xfer(struct uvideo_stream *vs) |
1623 | { |
1624 | struct uvideo_bulk_xfer *bx; |
1625 | struct uvideo_isoc_xfer *ix; |
1626 | usbd_status err; |
1627 | int i; |
1628 | |
1629 | switch (vs->vs_xfer_type) { |
1630 | case UE_BULK: |
1631 | bx = &vs->vs_xfer.bulk; |
1632 | |
1633 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: " |
1634 | "waiting for thread to complete\n" )); |
1635 | mutex_enter(&bx->bx_lock); |
1636 | if (bx->bx_running == true) { |
1637 | bx->bx_running = false; |
1638 | cv_wait_sig(&bx->bx_cv, &bx->bx_lock); |
1639 | } |
1640 | mutex_exit(&bx->bx_lock); |
1641 | |
1642 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: cleaning up\n" )); |
1643 | |
1644 | if (bx->bx_pipe) { |
1645 | usbd_abort_pipe(bx->bx_pipe); |
1646 | } |
1647 | |
1648 | if (bx->bx_xfer) { |
1649 | usbd_destroy_xfer(bx->bx_xfer); |
1650 | bx->bx_xfer = NULL; |
1651 | } |
1652 | |
1653 | if (bx->bx_pipe) { |
1654 | usbd_close_pipe(bx->bx_pipe); |
1655 | bx->bx_pipe = NULL; |
1656 | } |
1657 | |
1658 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: done\n" )); |
1659 | |
1660 | return 0; |
1661 | case UE_ISOCHRONOUS: |
1662 | ix = &vs->vs_xfer.isoc; |
1663 | if (ix->ix_pipe != NULL) { |
1664 | usbd_abort_pipe(ix->ix_pipe); |
1665 | } |
1666 | |
1667 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
1668 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
1669 | if (isoc->i_xfer != NULL) { |
1670 | usbd_destroy_xfer(isoc->i_xfer); |
1671 | isoc->i_xfer = NULL; |
1672 | } |
1673 | |
1674 | if (isoc->i_frlengths != NULL) { |
1675 | kmem_free(isoc->i_frlengths, |
1676 | sizeof(isoc->i_frlengths[0]) * |
1677 | ix->ix_nframes); |
1678 | isoc->i_frlengths = NULL; |
1679 | } |
1680 | } |
1681 | |
1682 | if (ix->ix_pipe != NULL) { |
1683 | usbd_close_pipe(ix->ix_pipe); |
1684 | ix->ix_pipe = NULL; |
1685 | } |
1686 | /* Give it some time to settle */ |
1687 | usbd_delay_ms(vs->vs_parent->sc_udev, 1000); |
1688 | |
1689 | /* Set to zero bandwidth alternate interface zero */ |
1690 | err = usbd_set_interface(vs->vs_iface, 0); |
1691 | if (err != USBD_NORMAL_COMPLETION) { |
1692 | DPRINTF(("uvideo_stream_stop_transfer: " |
1693 | "error setting zero bandwidth interface: " |
1694 | "%s (%d)\n" , |
1695 | usbd_errstr(err), err)); |
1696 | return EIO; |
1697 | } |
1698 | |
1699 | return 0; |
1700 | default: |
1701 | /* should never get here */ |
1702 | DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n" , |
1703 | vs->vs_xfer_type)); |
1704 | return EINVAL; |
1705 | } |
1706 | } |
1707 | |
1708 | static usbd_status |
1709 | uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) |
1710 | { |
1711 | int i; |
1712 | |
1713 | for (i = 0; i < UVIDEO_NXFERS; i++) |
1714 | uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); |
1715 | |
1716 | return USBD_NORMAL_COMPLETION; |
1717 | } |
1718 | |
1719 | /* Initiate a usb transfer. */ |
1720 | static usbd_status |
1721 | uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) |
1722 | { |
1723 | struct uvideo_isoc_xfer *ix; |
1724 | usbd_status err; |
1725 | int i; |
1726 | |
1727 | ix = isoc->i_ix; |
1728 | |
1729 | for (i = 0; i < ix->ix_nframes; ++i) |
1730 | isoc->i_frlengths[i] = ix->ix_uframe_len; |
1731 | |
1732 | usbd_setup_isoc_xfer(isoc->i_xfer, |
1733 | isoc, |
1734 | isoc->i_frlengths, |
1735 | ix->ix_nframes, |
1736 | USBD_SHORT_XFER_OK, |
1737 | uvideo_stream_recv_isoc_complete); |
1738 | |
1739 | err = usbd_transfer(isoc->i_xfer); |
1740 | if (err != USBD_IN_PROGRESS) { |
1741 | DPRINTF(("uvideo_stream_recv_start: " |
1742 | "usbd_transfer status=%s (%d)\n" , |
1743 | usbd_errstr(err), err)); |
1744 | } |
1745 | return err; |
1746 | } |
1747 | |
1748 | static usbd_status |
1749 | uvideo_stream_recv_process(struct uvideo_stream *vs, uint8_t *buf, uint32_t len) |
1750 | { |
1751 | uvideo_payload_header_t *hdr; |
1752 | struct video_payload payload; |
1753 | |
1754 | if (len < sizeof(uvideo_payload_header_t)) { |
1755 | DPRINTF(("uvideo_stream_recv_process: len %d < payload hdr\n" , |
1756 | len)); |
1757 | return USBD_SHORT_XFER; |
1758 | } |
1759 | |
1760 | hdr = (uvideo_payload_header_t *)buf; |
1761 | |
1762 | if (hdr->bHeaderLength > UVIDEO_PAYLOAD_HEADER_SIZE || |
1763 | hdr->bHeaderLength < sizeof(uvideo_payload_header_t)) |
1764 | return USBD_INVAL; |
1765 | if (hdr->bHeaderLength == len && !(hdr->bmHeaderInfo & UV_END_OF_FRAME)) |
1766 | return USBD_INVAL; |
1767 | if (hdr->bmHeaderInfo & UV_ERROR) |
1768 | return USBD_IOERROR; |
1769 | |
1770 | payload.data = buf + hdr->bHeaderLength; |
1771 | payload.size = len - hdr->bHeaderLength; |
1772 | payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; |
1773 | payload.end_of_frame = hdr->bmHeaderInfo & UV_END_OF_FRAME; |
1774 | |
1775 | video_submit_payload(vs->vs_parent->sc_videodev, &payload); |
1776 | |
1777 | return USBD_NORMAL_COMPLETION; |
1778 | } |
1779 | |
1780 | /* Callback on completion of usb isoc transfer */ |
1781 | static void |
1782 | uvideo_stream_recv_isoc_complete(struct usbd_xfer *xfer, |
1783 | void *priv, |
1784 | usbd_status status) |
1785 | { |
1786 | struct uvideo_stream *vs; |
1787 | struct uvideo_isoc_xfer *ix; |
1788 | struct uvideo_isoc *isoc; |
1789 | int i; |
1790 | uint32_t count; |
1791 | uint8_t *buf; |
1792 | |
1793 | isoc = priv; |
1794 | vs = isoc->i_vs; |
1795 | ix = isoc->i_ix; |
1796 | |
1797 | if (status != USBD_NORMAL_COMPLETION) { |
1798 | DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n" , |
1799 | usbd_errstr(status), status)); |
1800 | |
1801 | if (status == USBD_STALLED) |
1802 | usbd_clear_endpoint_stall_async(ix->ix_pipe); |
1803 | else |
1804 | return; |
1805 | } else { |
1806 | usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); |
1807 | |
1808 | if (count == 0) { |
1809 | /* DPRINTF(("uvideo: zero length transfer\n")); */ |
1810 | goto next; |
1811 | } |
1812 | |
1813 | |
1814 | for (i = 0, buf = isoc->i_buf; |
1815 | i < ix->ix_nframes; |
1816 | ++i, buf += ix->ix_uframe_len) |
1817 | { |
1818 | status = uvideo_stream_recv_process(vs, buf, |
1819 | isoc->i_frlengths[i]); |
1820 | if (status == USBD_IOERROR) |
1821 | break; |
1822 | } |
1823 | } |
1824 | |
1825 | next: |
1826 | uvideo_stream_recv_isoc_start1(isoc); |
1827 | } |
1828 | |
1829 | static void |
1830 | uvideo_stream_recv_bulk_transfer(void *addr) |
1831 | { |
1832 | struct uvideo_stream *vs = addr; |
1833 | struct uvideo_bulk_xfer *bx = &vs->vs_xfer.bulk; |
1834 | usbd_status err; |
1835 | uint32_t len; |
1836 | |
1837 | DPRINTF(("uvideo_stream_recv_bulk_transfer: " |
1838 | "vs %p sc %p bx %p buffer %p\n" , vs, vs->vs_parent, bx, |
1839 | bx->bx_buffer)); |
1840 | |
1841 | while (bx->bx_running) { |
1842 | len = bx->bx_buflen; |
1843 | err = usbd_bulk_transfer(bx->bx_xfer, bx->bx_pipe, |
1844 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, |
1845 | bx->bx_buffer, &len); |
1846 | |
1847 | if (err == USBD_NORMAL_COMPLETION) { |
1848 | uvideo_stream_recv_process(vs, bx->bx_buffer, len); |
1849 | } else { |
1850 | DPRINTF(("uvideo_stream_recv_bulk_transfer: %s\n" , |
1851 | usbd_errstr(err))); |
1852 | } |
1853 | } |
1854 | |
1855 | DPRINTF(("uvideo_stream_recv_bulk_transfer: notify complete\n" )); |
1856 | |
1857 | mutex_enter(&bx->bx_lock); |
1858 | cv_broadcast(&bx->bx_cv); |
1859 | mutex_exit(&bx->bx_lock); |
1860 | |
1861 | DPRINTF(("uvideo_stream_recv_bulk_transfer: return\n" )); |
1862 | |
1863 | kthread_exit(0); |
1864 | } |
1865 | |
1866 | /* |
1867 | * uvideo_open - probe and commit video format and start receiving |
1868 | * video data |
1869 | */ |
1870 | static int |
1871 | uvideo_open(void *addr, int flags) |
1872 | { |
1873 | struct uvideo_softc *sc; |
1874 | struct uvideo_stream *vs; |
1875 | struct video_format fmt; |
1876 | |
1877 | sc = addr; |
1878 | vs = sc->sc_stream_in; |
1879 | |
1880 | DPRINTF(("uvideo_open: sc=%p\n" , sc)); |
1881 | if (sc->sc_dying) |
1882 | return EIO; |
1883 | |
1884 | /* XXX select default format */ |
1885 | fmt = *vs->vs_default_format; |
1886 | return uvideo_set_format(addr, &fmt); |
1887 | } |
1888 | |
1889 | |
1890 | static void |
1891 | uvideo_close(void *addr) |
1892 | { |
1893 | struct uvideo_softc *sc; |
1894 | |
1895 | sc = addr; |
1896 | |
1897 | if (sc->sc_state != UVIDEO_STATE_CLOSED) { |
1898 | sc->sc_state = UVIDEO_STATE_CLOSED; |
1899 | } |
1900 | } |
1901 | |
1902 | static const char * |
1903 | uvideo_get_devname(void *addr) |
1904 | { |
1905 | struct uvideo_softc *sc = addr; |
1906 | return sc->sc_devname; |
1907 | } |
1908 | |
1909 | static const char * |
1910 | uvideo_get_businfo(void *addr) |
1911 | { |
1912 | struct uvideo_softc *sc = addr; |
1913 | return sc->sc_businfo; |
1914 | } |
1915 | |
1916 | static int |
1917 | uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) |
1918 | { |
1919 | struct uvideo_softc *sc = addr; |
1920 | struct uvideo_stream *vs = sc->sc_stream_in; |
1921 | struct uvideo_pixel_format *pixel_format; |
1922 | int off; |
1923 | |
1924 | if (sc->sc_dying) |
1925 | return EIO; |
1926 | |
1927 | off = 0; |
1928 | SIMPLEQ_FOREACH(pixel_format, &vs->vs_pixel_formats, entries) { |
1929 | if (off++ != index) |
1930 | continue; |
1931 | format->pixel_format = pixel_format->pixel_format; |
1932 | return 0; |
1933 | } |
1934 | |
1935 | return EINVAL; |
1936 | } |
1937 | |
1938 | /* |
1939 | * uvideo_get_format |
1940 | */ |
1941 | static int |
1942 | uvideo_get_format(void *addr, struct video_format *format) |
1943 | { |
1944 | struct uvideo_softc *sc = addr; |
1945 | struct uvideo_stream *vs = sc->sc_stream_in; |
1946 | |
1947 | if (sc->sc_dying) |
1948 | return EIO; |
1949 | |
1950 | *format = vs->vs_current_format; |
1951 | |
1952 | return 0; |
1953 | } |
1954 | |
1955 | /* |
1956 | * uvideo_set_format - TODO: this is boken and does nothing |
1957 | */ |
1958 | static int |
1959 | uvideo_set_format(void *addr, struct video_format *format) |
1960 | { |
1961 | struct uvideo_softc *sc; |
1962 | struct uvideo_stream *vs; |
1963 | struct uvideo_format *uvfmt; |
1964 | uvideo_probe_and_commit_data_t probe, maxprobe; |
1965 | usbd_status err; |
1966 | |
1967 | sc = addr; |
1968 | |
1969 | DPRINTF(("uvideo_set_format: sc=%p\n" , sc)); |
1970 | if (sc->sc_dying) |
1971 | return EIO; |
1972 | |
1973 | vs = sc->sc_stream_in; |
1974 | |
1975 | uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, |
1976 | format->width, format->height); |
1977 | if (uvfmt == NULL) { |
1978 | DPRINTF(("uvideo: uvideo_stream_guess_format couldn't find " |
1979 | "%dx%d format %d\n" , format->width, format->height, |
1980 | format->pixel_format)); |
1981 | return EINVAL; |
1982 | } |
1983 | |
1984 | uvideo_init_probe_data(&probe); |
1985 | probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); |
1986 | probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); |
1987 | USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ |
1988 | |
1989 | maxprobe = probe; |
1990 | err = uvideo_stream_probe(vs, UR_GET_MAX, &maxprobe); |
1991 | if (err) { |
1992 | DPRINTF(("uvideo: error probe/GET_MAX: %s (%d)\n" , |
1993 | usbd_errstr(err), err)); |
1994 | } else { |
1995 | USETW(probe.wCompQuality, UGETW(maxprobe.wCompQuality)); |
1996 | } |
1997 | |
1998 | err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); |
1999 | if (err) { |
2000 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
2001 | usbd_errstr(err), err)); |
2002 | return EIO; |
2003 | } |
2004 | |
2005 | uvideo_init_probe_data(&probe); |
2006 | err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); |
2007 | if (err) { |
2008 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
2009 | usbd_errstr(err), err)); |
2010 | return EIO; |
2011 | } |
2012 | |
2013 | if (probe.bFormatIndex != UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt)) { |
2014 | DPRINTF(("uvideo: probe/GET_CUR returned format index %d " |
2015 | "(expected %d)\n" , probe.bFormatIndex, |
2016 | UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt))); |
2017 | probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); |
2018 | } |
2019 | if (probe.bFrameIndex != UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt)) { |
2020 | DPRINTF(("uvideo: probe/GET_CUR returned frame index %d " |
2021 | "(expected %d)\n" , probe.bFrameIndex, |
2022 | UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt))); |
2023 | probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); |
2024 | } |
2025 | USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ |
2026 | |
2027 | /* commit/SET_CUR. Fourth step is to set the alternate |
2028 | * interface. Currently the fourth step is in |
2029 | * uvideo_start_transfer. Maybe move it here? */ |
2030 | err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); |
2031 | if (err) { |
2032 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
2033 | usbd_errstr(err), err)); |
2034 | return EIO; |
2035 | } |
2036 | |
2037 | DPRINTFN(15, ("uvideo_set_format: committing to format: " |
2038 | "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " |
2039 | "dwFrameInterval=%u wKeyFrameRate=%d wPFrameRate=%d " |
2040 | "wCompQuality=%d wCompWindowSize=%d wDelay=%d " |
2041 | "dwMaxVideoFrameSize=%u dwMaxPayloadTransferSize=%u" , |
2042 | UGETW(probe.bmHint), |
2043 | probe.bFormatIndex, |
2044 | probe.bFrameIndex, |
2045 | UGETDW(probe.dwFrameInterval), |
2046 | UGETW(probe.wKeyFrameRate), |
2047 | UGETW(probe.wPFrameRate), |
2048 | UGETW(probe.wCompQuality), |
2049 | UGETW(probe.wCompWindowSize), |
2050 | UGETW(probe.wDelay), |
2051 | UGETDW(probe.dwMaxVideoFrameSize), |
2052 | UGETDW(probe.dwMaxPayloadTransferSize))); |
2053 | if (vs->vs_probelen == 34) { |
2054 | DPRINTFN(15, (" dwClockFrequency=%u bmFramingInfo=0x%02x " |
2055 | "bPreferedVersion=%d bMinVersion=%d " |
2056 | "bMaxVersion=%d" , |
2057 | UGETDW(probe.dwClockFrequency), |
2058 | probe.bmFramingInfo, |
2059 | probe.bPreferedVersion, |
2060 | probe.bMinVersion, |
2061 | probe.bMaxVersion)); |
2062 | } |
2063 | DPRINTFN(15, ("\n" )); |
2064 | |
2065 | vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); |
2066 | vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); |
2067 | |
2068 | *format = uvfmt->format; |
2069 | vs->vs_current_format = *format; |
2070 | DPRINTF(("uvideo_set_format: pixeltype is %d\n" , format->pixel_format)); |
2071 | |
2072 | return 0; |
2073 | } |
2074 | |
2075 | static int |
2076 | uvideo_try_format(void *addr, struct video_format *format) |
2077 | { |
2078 | struct uvideo_softc *sc = addr; |
2079 | struct uvideo_stream *vs = sc->sc_stream_in; |
2080 | struct uvideo_format *uvfmt; |
2081 | |
2082 | uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, |
2083 | format->width, format->height); |
2084 | if (uvfmt == NULL) |
2085 | return EINVAL; |
2086 | |
2087 | *format = uvfmt->format; |
2088 | return 0; |
2089 | } |
2090 | |
2091 | static int |
2092 | uvideo_start_transfer(void *addr) |
2093 | { |
2094 | struct uvideo_softc *sc = addr; |
2095 | struct uvideo_stream *vs; |
2096 | int s, err; |
2097 | |
2098 | /* FIXME: this functions should be stream specific */ |
2099 | vs = SLIST_FIRST(&sc->sc_stream_list); |
2100 | s = splusb(); |
2101 | err = uvideo_stream_start_xfer(vs); |
2102 | splx(s); |
2103 | |
2104 | return err; |
2105 | } |
2106 | |
2107 | static int |
2108 | uvideo_stop_transfer(void *addr) |
2109 | { |
2110 | struct uvideo_softc *sc; |
2111 | int err, s; |
2112 | |
2113 | sc = addr; |
2114 | |
2115 | s = splusb(); |
2116 | err = uvideo_stream_stop_xfer(sc->sc_stream_in); |
2117 | splx(s); |
2118 | |
2119 | return err; |
2120 | } |
2121 | |
2122 | |
2123 | static int |
2124 | uvideo_get_control_group(void *addr, struct video_control_group *group) |
2125 | { |
2126 | struct uvideo_softc *sc; |
2127 | usb_device_request_t req; |
2128 | usbd_status err; |
2129 | uint8_t control_id, ent_id, data[16]; |
2130 | uint16_t len; |
2131 | int s; |
2132 | |
2133 | sc = addr; |
2134 | |
2135 | /* request setup */ |
2136 | switch (group->group_id) { |
2137 | case VIDEO_CONTROL_PANTILT_RELATIVE: |
2138 | if (group->length != 4) |
2139 | return EINVAL; |
2140 | |
2141 | return EINVAL; |
2142 | case VIDEO_CONTROL_SHARPNESS: |
2143 | if (group->length != 1) |
2144 | return EINVAL; |
2145 | |
2146 | control_id = UVIDEO_PU_SHARPNESS_CONTROL; |
2147 | ent_id = 2; /* TODO: hardcoded logitech processing unit */ |
2148 | len = 2; |
2149 | break; |
2150 | default: |
2151 | return EINVAL; |
2152 | } |
2153 | |
2154 | /* do request */ |
2155 | req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | |
2156 | UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | |
2157 | UVIDEO_REQUEST_TYPE_GET; |
2158 | req.bRequest = UR_GET_CUR; |
2159 | USETW(req.wValue, control_id << 8); |
2160 | USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); |
2161 | USETW(req.wLength, len); |
2162 | |
2163 | s = splusb(); |
2164 | err = usbd_do_request(sc->sc_udev, &req, data); |
2165 | splx(s); |
2166 | if (err != USBD_NORMAL_COMPLETION) { |
2167 | DPRINTF(("uvideo_set_control: error %s (%d)\n" , |
2168 | usbd_errstr(err), err)); |
2169 | return EIO; /* TODO: more detail here? */ |
2170 | } |
2171 | |
2172 | /* extract request data */ |
2173 | switch (group->group_id) { |
2174 | case VIDEO_CONTROL_SHARPNESS: |
2175 | group->control[0].value = UGETW(data); |
2176 | break; |
2177 | default: |
2178 | return EINVAL; |
2179 | } |
2180 | |
2181 | return 0; |
2182 | } |
2183 | |
2184 | |
2185 | static int |
2186 | uvideo_set_control_group(void *addr, const struct video_control_group *group) |
2187 | { |
2188 | struct uvideo_softc *sc; |
2189 | usb_device_request_t req; |
2190 | usbd_status err; |
2191 | uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ |
2192 | uint16_t len; |
2193 | int s; |
2194 | |
2195 | sc = addr; |
2196 | |
2197 | switch (group->group_id) { |
2198 | case VIDEO_CONTROL_PANTILT_RELATIVE: |
2199 | if (group->length != 4) |
2200 | return EINVAL; |
2201 | |
2202 | if (group->control[0].value != 0 || |
2203 | group->control[0].value != 1 || |
2204 | group->control[0].value != 0xff) |
2205 | return ERANGE; |
2206 | |
2207 | if (group->control[2].value != 0 || |
2208 | group->control[2].value != 1 || |
2209 | group->control[2].value != 0xff) |
2210 | return ERANGE; |
2211 | |
2212 | control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; |
2213 | ent_id = 1; /* TODO: hardcoded logitech camera terminal */ |
2214 | len = 4; |
2215 | data[0] = group->control[0].value; |
2216 | data[1] = group->control[1].value; |
2217 | data[2] = group->control[2].value; |
2218 | data[3] = group->control[3].value; |
2219 | break; |
2220 | case VIDEO_CONTROL_BRIGHTNESS: |
2221 | if (group->length != 1) |
2222 | return EINVAL; |
2223 | control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; |
2224 | ent_id = 2; |
2225 | len = 2; |
2226 | USETW(data, group->control[0].value); |
2227 | break; |
2228 | case VIDEO_CONTROL_GAIN: |
2229 | if (group->length != 1) |
2230 | return EINVAL; |
2231 | control_id = UVIDEO_PU_GAIN_CONTROL; |
2232 | ent_id = 2; |
2233 | len = 2; |
2234 | USETW(data, group->control[0].value); |
2235 | break; |
2236 | case VIDEO_CONTROL_SHARPNESS: |
2237 | if (group->length != 1) |
2238 | return EINVAL; |
2239 | control_id = UVIDEO_PU_SHARPNESS_CONTROL; |
2240 | ent_id = 2; /* TODO: hardcoded logitech processing unit */ |
2241 | len = 2; |
2242 | USETW(data, group->control[0].value); |
2243 | break; |
2244 | default: |
2245 | return EINVAL; |
2246 | } |
2247 | |
2248 | req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | |
2249 | UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | |
2250 | UVIDEO_REQUEST_TYPE_SET; |
2251 | req.bRequest = UR_SET_CUR; |
2252 | USETW(req.wValue, control_id << 8); |
2253 | USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); |
2254 | USETW(req.wLength, len); |
2255 | |
2256 | s = splusb(); |
2257 | err = usbd_do_request(sc->sc_udev, &req, data); |
2258 | splx(s); |
2259 | if (err != USBD_NORMAL_COMPLETION) { |
2260 | DPRINTF(("uvideo_set_control: error %s (%d)\n" , |
2261 | usbd_errstr(err), err)); |
2262 | return EIO; /* TODO: more detail here? */ |
2263 | } |
2264 | |
2265 | return 0; |
2266 | } |
2267 | |
2268 | static usbd_status |
2269 | uvideo_stream_probe_and_commit(struct uvideo_stream *vs, |
2270 | uint8_t action, uint8_t control, |
2271 | void *data) |
2272 | { |
2273 | usb_device_request_t req; |
2274 | |
2275 | switch (action) { |
2276 | case UR_SET_CUR: |
2277 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
2278 | USETW(req.wLength, vs->vs_probelen); |
2279 | break; |
2280 | case UR_GET_CUR: |
2281 | case UR_GET_MIN: |
2282 | case UR_GET_MAX: |
2283 | case UR_GET_DEF: |
2284 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
2285 | USETW(req.wLength, vs->vs_probelen); |
2286 | break; |
2287 | case UR_GET_INFO: |
2288 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
2289 | USETW(req.wLength, sizeof(uByte)); |
2290 | break; |
2291 | case UR_GET_LEN: |
2292 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
2293 | USETW(req.wLength, sizeof(uWord)); /* is this right? */ |
2294 | break; |
2295 | default: |
2296 | DPRINTF(("uvideo_probe_and_commit: " |
2297 | "unknown request action %d\n" , action)); |
2298 | return USBD_NOT_STARTED; |
2299 | } |
2300 | |
2301 | req.bRequest = action; |
2302 | USETW2(req.wValue, control, 0); |
2303 | USETW2(req.wIndex, 0, vs->vs_ifaceno); |
2304 | |
2305 | return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, |
2306 | 0, 0, |
2307 | USBD_DEFAULT_TIMEOUT)); |
2308 | } |
2309 | |
2310 | static void |
2311 | uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) |
2312 | { |
2313 | /* all zeroes tells camera to choose what it wants */ |
2314 | memset(probe, 0, sizeof(*probe)); |
2315 | } |
2316 | |
2317 | |
2318 | #ifdef _MODULE |
2319 | |
2320 | MODULE(MODULE_CLASS_DRIVER, uvideo, NULL); |
2321 | static const struct cfiattrdata videobuscf_iattrdata = { |
2322 | "videobus" , 0, { |
2323 | { NULL, NULL, 0 }, |
2324 | } |
2325 | }; |
2326 | static const struct cfiattrdata * const uvideo_attrs[] = { |
2327 | &videobuscf_iattrdata, NULL |
2328 | }; |
2329 | CFDRIVER_DECL(uvideo, DV_DULL, uvideo_attrs); |
2330 | extern struct cfattach uvideo_ca; |
2331 | extern struct cfattach uvideo_ca; |
2332 | static int uvideoloc[6] = { -1, -1, -1, -1, -1, -1 }; |
2333 | static struct cfparent uhubparent = { |
2334 | "usbifif" , NULL, DVUNIT_ANY |
2335 | }; |
2336 | static struct cfdata uvideo_cfdata[] = { |
2337 | { |
2338 | .cf_name = "uvideo" , |
2339 | .cf_atname = "uvideo" , |
2340 | .cf_unit = 0, |
2341 | .cf_fstate = FSTATE_STAR, |
2342 | .cf_loc = uvideoloc, |
2343 | .cf_flags = 0, |
2344 | .cf_pspec = &uhubparent, |
2345 | }, |
2346 | { NULL, NULL, 0, 0, NULL, 0, NULL }, |
2347 | }; |
2348 | |
2349 | static int |
2350 | uvideo_modcmd(modcmd_t cmd, void *arg) |
2351 | { |
2352 | int err; |
2353 | |
2354 | |
2355 | switch (cmd) { |
2356 | case MODULE_CMD_INIT: |
2357 | DPRINTF(("uvideo: attempting to load\n" )); |
2358 | |
2359 | err = config_cfdriver_attach(&uvideo_cd); |
2360 | if (err) |
2361 | return err; |
2362 | err = config_cfattach_attach("uvideo" , &uvideo_ca); |
2363 | if (err) { |
2364 | config_cfdriver_detach(&uvideo_cd); |
2365 | return err; |
2366 | } |
2367 | err = config_cfdata_attach(uvideo_cfdata, 1); |
2368 | if (err) { |
2369 | config_cfattach_detach("uvideo" , &uvideo_ca); |
2370 | config_cfdriver_detach(&uvideo_cd); |
2371 | return err; |
2372 | } |
2373 | DPRINTF(("uvideo: loaded module\n" )); |
2374 | return 0; |
2375 | case MODULE_CMD_FINI: |
2376 | DPRINTF(("uvideo: attempting to unload module\n" )); |
2377 | err = config_cfdata_detach(uvideo_cfdata); |
2378 | if (err) |
2379 | return err; |
2380 | config_cfattach_detach("uvideo" , &uvideo_ca); |
2381 | config_cfdriver_detach(&uvideo_cd); |
2382 | DPRINTF(("uvideo: module unload\n" )); |
2383 | return 0; |
2384 | default: |
2385 | return ENOTTY; |
2386 | } |
2387 | } |
2388 | |
2389 | #endif /* _MODULE */ |
2390 | |
2391 | |
2392 | #ifdef UVIDEO_DEBUG |
2393 | /* Some functions to print out descriptors. Mostly useless other than |
2394 | * debugging/exploration purposes. */ |
2395 | |
2396 | |
2397 | static void |
2398 | print_bitmap(const uByte *start, uByte nbytes) |
2399 | { |
2400 | int byte, bit; |
2401 | |
2402 | /* most significant first */ |
2403 | for (byte = nbytes-1; byte >= 0; --byte) { |
2404 | if (byte < nbytes-1) printf("-" ); |
2405 | for (bit = 7; bit >= 0; --bit) |
2406 | printf("%01d" , (start[byte] >> bit) &1); |
2407 | } |
2408 | } |
2409 | |
2410 | static void |
2411 | print_descriptor(const usb_descriptor_t *desc) |
2412 | { |
2413 | static int current_class = -1; |
2414 | static int current_subclass = -1; |
2415 | |
2416 | if (desc->bDescriptorType == UDESC_INTERFACE) { |
2417 | const usb_interface_descriptor_t *id; |
2418 | id = (const usb_interface_descriptor_t *)desc; |
2419 | current_class = id->bInterfaceClass; |
2420 | current_subclass = id->bInterfaceSubClass; |
2421 | print_interface_descriptor(id); |
2422 | printf("\n" ); |
2423 | return; |
2424 | } |
2425 | |
2426 | printf(" " ); /* indent */ |
2427 | |
2428 | if (current_class == UICLASS_VIDEO) { |
2429 | switch (current_subclass) { |
2430 | case UISUBCLASS_VIDEOCONTROL: |
2431 | print_vc_descriptor(desc); |
2432 | break; |
2433 | case UISUBCLASS_VIDEOSTREAMING: |
2434 | print_vs_descriptor(desc); |
2435 | break; |
2436 | case UISUBCLASS_VIDEOCOLLECTION: |
2437 | printf("uvc collection: len=%d type=0x%02x" , |
2438 | desc->bLength, desc->bDescriptorType); |
2439 | break; |
2440 | } |
2441 | } else { |
2442 | printf("non uvc descriptor len=%d type=0x%02x" , |
2443 | desc->bLength, desc->bDescriptorType); |
2444 | } |
2445 | |
2446 | printf("\n" ); |
2447 | } |
2448 | |
2449 | static void |
2450 | print_vc_descriptor(const usb_descriptor_t *desc) |
2451 | { |
2452 | const uvideo_descriptor_t *vcdesc; |
2453 | |
2454 | printf("VC " ); |
2455 | |
2456 | switch (desc->bDescriptorType) { |
2457 | case UDESC_ENDPOINT: |
2458 | print_endpoint_descriptor( |
2459 | (const usb_endpoint_descriptor_t *)desc); |
2460 | break; |
2461 | case UDESC_CS_INTERFACE: |
2462 | vcdesc = (const uvideo_descriptor_t *)desc; |
2463 | switch (vcdesc->bDescriptorSubtype) { |
2464 | case UDESC_VC_HEADER: |
2465 | print_vc_header_descriptor( |
2466 | (const uvideo_vc_header_descriptor_t *) |
2467 | vcdesc); |
2468 | break; |
2469 | case UDESC_INPUT_TERMINAL: |
2470 | switch (UGETW( |
2471 | ((const uvideo_input_terminal_descriptor_t *) |
2472 | vcdesc)->wTerminalType)) { |
2473 | case UVIDEO_ITT_CAMERA: |
2474 | print_camera_terminal_descriptor( |
2475 | (const uvideo_camera_terminal_descriptor_t *)vcdesc); |
2476 | break; |
2477 | default: |
2478 | print_input_terminal_descriptor( |
2479 | (const uvideo_input_terminal_descriptor_t *)vcdesc); |
2480 | break; |
2481 | } |
2482 | break; |
2483 | case UDESC_OUTPUT_TERMINAL: |
2484 | print_output_terminal_descriptor( |
2485 | (const uvideo_output_terminal_descriptor_t *) |
2486 | vcdesc); |
2487 | break; |
2488 | case UDESC_SELECTOR_UNIT: |
2489 | print_selector_unit_descriptor( |
2490 | (const uvideo_selector_unit_descriptor_t *) |
2491 | vcdesc); |
2492 | break; |
2493 | case UDESC_PROCESSING_UNIT: |
2494 | print_processing_unit_descriptor( |
2495 | (const uvideo_processing_unit_descriptor_t *) |
2496 | vcdesc); |
2497 | break; |
2498 | case UDESC_EXTENSION_UNIT: |
2499 | print_extension_unit_descriptor( |
2500 | (const uvideo_extension_unit_descriptor_t *) |
2501 | vcdesc); |
2502 | break; |
2503 | default: |
2504 | printf("class specific interface " |
2505 | "len=%d type=0x%02x subtype=0x%02x" , |
2506 | vcdesc->bLength, |
2507 | vcdesc->bDescriptorType, |
2508 | vcdesc->bDescriptorSubtype); |
2509 | break; |
2510 | } |
2511 | break; |
2512 | case UDESC_CS_ENDPOINT: |
2513 | vcdesc = (const uvideo_descriptor_t *)desc; |
2514 | switch (vcdesc->bDescriptorSubtype) { |
2515 | case UDESC_VC_INTERRUPT_ENDPOINT: |
2516 | print_interrupt_endpoint_descriptor( |
2517 | (const uvideo_vc_interrupt_endpoint_descriptor_t *) |
2518 | vcdesc); |
2519 | break; |
2520 | default: |
2521 | printf("class specific endpoint " |
2522 | "len=%d type=0x%02x subtype=0x%02x" , |
2523 | vcdesc->bLength, |
2524 | vcdesc->bDescriptorType, |
2525 | vcdesc->bDescriptorSubtype); |
2526 | break; |
2527 | } |
2528 | break; |
2529 | default: |
2530 | printf("unknown: len=%d type=0x%02x" , |
2531 | desc->bLength, desc->bDescriptorType); |
2532 | break; |
2533 | } |
2534 | } |
2535 | |
2536 | static void |
2537 | print_vs_descriptor(const usb_descriptor_t *desc) |
2538 | { |
2539 | const uvideo_descriptor_t * vsdesc; |
2540 | printf("VS " ); |
2541 | |
2542 | switch (desc->bDescriptorType) { |
2543 | case UDESC_ENDPOINT: |
2544 | print_endpoint_descriptor( |
2545 | (const usb_endpoint_descriptor_t *)desc); |
2546 | break; |
2547 | case UDESC_CS_INTERFACE: |
2548 | vsdesc = (const uvideo_descriptor_t *)desc; |
2549 | switch (vsdesc->bDescriptorSubtype) { |
2550 | case UDESC_VS_INPUT_HEADER: |
2551 | print_vs_input_header_descriptor( |
2552 | (const uvideo_vs_input_header_descriptor_t *) |
2553 | vsdesc); |
2554 | break; |
2555 | case UDESC_VS_OUTPUT_HEADER: |
2556 | print_vs_output_header_descriptor( |
2557 | (const uvideo_vs_output_header_descriptor_t *) |
2558 | vsdesc); |
2559 | break; |
2560 | case UDESC_VS_FORMAT_UNCOMPRESSED: |
2561 | print_vs_format_uncompressed_descriptor( |
2562 | (const uvideo_vs_format_uncompressed_descriptor_t *) |
2563 | vsdesc); |
2564 | break; |
2565 | case UDESC_VS_FRAME_UNCOMPRESSED: |
2566 | print_vs_frame_uncompressed_descriptor( |
2567 | (const uvideo_vs_frame_uncompressed_descriptor_t *) |
2568 | vsdesc); |
2569 | break; |
2570 | case UDESC_VS_FORMAT_MJPEG: |
2571 | print_vs_format_mjpeg_descriptor( |
2572 | (const uvideo_vs_format_mjpeg_descriptor_t *) |
2573 | vsdesc); |
2574 | break; |
2575 | case UDESC_VS_FRAME_MJPEG: |
2576 | print_vs_frame_mjpeg_descriptor( |
2577 | (const uvideo_vs_frame_mjpeg_descriptor_t *) |
2578 | vsdesc); |
2579 | break; |
2580 | case UDESC_VS_FORMAT_DV: |
2581 | print_vs_format_dv_descriptor( |
2582 | (const uvideo_vs_format_dv_descriptor_t *) |
2583 | vsdesc); |
2584 | break; |
2585 | default: |
2586 | printf("unknown cs interface: len=%d type=0x%02x " |
2587 | "subtype=0x%02x" , |
2588 | vsdesc->bLength, vsdesc->bDescriptorType, |
2589 | vsdesc->bDescriptorSubtype); |
2590 | } |
2591 | break; |
2592 | default: |
2593 | printf("unknown: len=%d type=0x%02x" , |
2594 | desc->bLength, desc->bDescriptorType); |
2595 | break; |
2596 | } |
2597 | } |
2598 | |
2599 | static void |
2600 | print_interface_descriptor(const usb_interface_descriptor_t *id) |
2601 | { |
2602 | printf("Interface: Len=%d Type=0x%02x " |
2603 | "bInterfaceNumber=0x%02x " |
2604 | "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " |
2605 | "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " |
2606 | "bInterfaceProtocol=0x%02x iInterface=0x%02x" , |
2607 | id->bLength, |
2608 | id->bDescriptorType, |
2609 | id->bInterfaceNumber, |
2610 | id->bAlternateSetting, |
2611 | id->bNumEndpoints, |
2612 | id->bInterfaceClass, |
2613 | id->bInterfaceSubClass, |
2614 | id->bInterfaceProtocol, |
2615 | id->iInterface); |
2616 | } |
2617 | |
2618 | static void |
2619 | print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) |
2620 | { |
2621 | printf("Endpoint: Len=%d Type=0x%02x " |
2622 | "bEndpointAddress=0x%02x " , |
2623 | desc->bLength, |
2624 | desc->bDescriptorType, |
2625 | desc->bEndpointAddress); |
2626 | printf("bmAttributes=" ); |
2627 | print_bitmap(&desc->bmAttributes, 1); |
2628 | printf(" wMaxPacketSize=%d bInterval=%d" , |
2629 | UGETW(desc->wMaxPacketSize), |
2630 | desc->bInterval); |
2631 | } |
2632 | |
2633 | static void |
2634 | print_vc_header_descriptor( |
2635 | const uvideo_vc_header_descriptor_t *desc) |
2636 | { |
2637 | printf("Interface Header: " |
2638 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2639 | "bcdUVC=%d wTotalLength=%d " |
2640 | "dwClockFrequency=%u bInCollection=%d" , |
2641 | desc->bLength, |
2642 | desc->bDescriptorType, |
2643 | desc->bDescriptorSubtype, |
2644 | UGETW(desc->bcdUVC), |
2645 | UGETW(desc->wTotalLength), |
2646 | UGETDW(desc->dwClockFrequency), |
2647 | desc->bInCollection); |
2648 | } |
2649 | |
2650 | static void |
2651 | print_input_terminal_descriptor( |
2652 | const uvideo_input_terminal_descriptor_t *desc) |
2653 | { |
2654 | printf("Input Terminal: " |
2655 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2656 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
2657 | "iTerminal=%d" , |
2658 | desc->bLength, |
2659 | desc->bDescriptorType, |
2660 | desc->bDescriptorSubtype, |
2661 | desc->bTerminalID, |
2662 | UGETW(desc->wTerminalType), |
2663 | desc->bAssocTerminal, |
2664 | desc->iTerminal); |
2665 | } |
2666 | |
2667 | static void |
2668 | print_output_terminal_descriptor( |
2669 | const uvideo_output_terminal_descriptor_t *desc) |
2670 | { |
2671 | printf("Output Terminal: " |
2672 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2673 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
2674 | "bSourceID=%d iTerminal=%d" , |
2675 | desc->bLength, |
2676 | desc->bDescriptorType, |
2677 | desc->bDescriptorSubtype, |
2678 | desc->bTerminalID, |
2679 | UGETW(desc->wTerminalType), |
2680 | desc->bAssocTerminal, |
2681 | desc->bSourceID, |
2682 | desc->iTerminal); |
2683 | } |
2684 | |
2685 | static void |
2686 | print_camera_terminal_descriptor( |
2687 | const uvideo_camera_terminal_descriptor_t *desc) |
2688 | { |
2689 | printf("Camera Terminal: " |
2690 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2691 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
2692 | "iTerminal=%d " |
2693 | "wObjectiveFocalLengthMin/Max=%d/%d " |
2694 | "wOcularFocalLength=%d " |
2695 | "bControlSize=%d " , |
2696 | desc->bLength, |
2697 | desc->bDescriptorType, |
2698 | desc->bDescriptorSubtype, |
2699 | desc->bTerminalID, |
2700 | UGETW(desc->wTerminalType), |
2701 | desc->bAssocTerminal, |
2702 | desc->iTerminal, |
2703 | UGETW(desc->wObjectiveFocalLengthMin), |
2704 | UGETW(desc->wObjectiveFocalLengthMax), |
2705 | UGETW(desc->wOcularFocalLength), |
2706 | desc->bControlSize); |
2707 | printf("bmControls=" ); |
2708 | print_bitmap(desc->bmControls, desc->bControlSize); |
2709 | } |
2710 | |
2711 | static void |
2712 | print_selector_unit_descriptor( |
2713 | const uvideo_selector_unit_descriptor_t *desc) |
2714 | { |
2715 | int i; |
2716 | const uByte *b; |
2717 | printf("Selector Unit: " |
2718 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2719 | "bUnitID=%d bNrInPins=%d " , |
2720 | desc->bLength, |
2721 | desc->bDescriptorType, |
2722 | desc->bDescriptorSubtype, |
2723 | desc->bUnitID, |
2724 | desc->bNrInPins); |
2725 | printf("baSourceIDs=" ); |
2726 | b = &desc->baSourceID[0]; |
2727 | for (i = 0; i < desc->bNrInPins; ++i) |
2728 | printf("%d " , *b++); |
2729 | printf("iSelector=%d" , *b); |
2730 | } |
2731 | |
2732 | static void |
2733 | print_processing_unit_descriptor( |
2734 | const uvideo_processing_unit_descriptor_t *desc) |
2735 | { |
2736 | const uByte *b; |
2737 | |
2738 | printf("Processing Unit: " |
2739 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2740 | "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d " , |
2741 | desc->bLength, |
2742 | desc->bDescriptorType, |
2743 | desc->bDescriptorSubtype, |
2744 | desc->bUnitID, |
2745 | desc->bSourceID, |
2746 | UGETW(desc->wMaxMultiplier), |
2747 | desc->bControlSize); |
2748 | printf("bmControls=" ); |
2749 | print_bitmap(desc->bmControls, desc->bControlSize); |
2750 | b = &desc->bControlSize + desc->bControlSize + 1; |
2751 | printf(" iProcessing=%d bmVideoStandards=" , *b); |
2752 | b += 1; |
2753 | print_bitmap(b, 1); |
2754 | } |
2755 | |
2756 | static void |
2757 | print_extension_unit_descriptor( |
2758 | const uvideo_extension_unit_descriptor_t *desc) |
2759 | { |
2760 | const uByte * byte; |
2761 | uByte controlbytes; |
2762 | int i; |
2763 | |
2764 | printf("Extension Unit: " |
2765 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2766 | "bUnitID=%d " , |
2767 | desc->bLength, |
2768 | desc->bDescriptorType, |
2769 | desc->bDescriptorSubtype, |
2770 | desc->bUnitID); |
2771 | |
2772 | printf("guidExtensionCode=" ); |
2773 | usb_guid_print(&desc->guidExtensionCode); |
2774 | printf(" " ); |
2775 | |
2776 | printf("bNumControls=%d bNrInPins=%d " , |
2777 | desc->bNumControls, |
2778 | desc->bNrInPins); |
2779 | |
2780 | printf("baSourceIDs=" ); |
2781 | byte = &desc->baSourceID[0]; |
2782 | for (i = 0; i < desc->bNrInPins; ++i) |
2783 | printf("%d " , *byte++); |
2784 | |
2785 | controlbytes = *byte++; |
2786 | printf("bControlSize=%d " , controlbytes); |
2787 | printf("bmControls=" ); |
2788 | print_bitmap(byte, controlbytes); |
2789 | |
2790 | byte += controlbytes; |
2791 | printf(" iExtension=%d" , *byte); |
2792 | } |
2793 | |
2794 | static void |
2795 | print_interrupt_endpoint_descriptor( |
2796 | const uvideo_vc_interrupt_endpoint_descriptor_t *desc) |
2797 | { |
2798 | printf("Interrupt Endpoint: " |
2799 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2800 | "wMaxTransferSize=%d " , |
2801 | desc->bLength, |
2802 | desc->bDescriptorType, |
2803 | desc->bDescriptorSubtype, |
2804 | UGETW(desc->wMaxTransferSize)); |
2805 | } |
2806 | |
2807 | |
2808 | static void |
2809 | print_vs_output_header_descriptor( |
2810 | const uvideo_vs_output_header_descriptor_t *desc) |
2811 | { |
2812 | printf("Interface Output Header: " |
2813 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2814 | "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " |
2815 | "bTerminalLink=%d bControlSize=%d" , |
2816 | desc->bLength, |
2817 | desc->bDescriptorType, |
2818 | desc->bDescriptorSubtype, |
2819 | desc->bNumFormats, |
2820 | UGETW(desc->wTotalLength), |
2821 | desc->bEndpointAddress, |
2822 | desc->bTerminalLink, |
2823 | desc->bControlSize); |
2824 | } |
2825 | |
2826 | static void |
2827 | print_vs_input_header_descriptor( |
2828 | const uvideo_vs_input_header_descriptor_t *desc) |
2829 | { |
2830 | printf("Interface Input Header: " |
2831 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2832 | "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " |
2833 | "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " |
2834 | "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d " , |
2835 | desc->bLength, |
2836 | desc->bDescriptorType, |
2837 | desc->bDescriptorSubtype, |
2838 | desc->bNumFormats, |
2839 | UGETW(desc->wTotalLength), |
2840 | desc->bEndpointAddress, |
2841 | desc->bmInfo, |
2842 | desc->bTerminalLink, |
2843 | desc->bStillCaptureMethod, |
2844 | desc->bTriggerSupport, |
2845 | desc->bTriggerUsage, |
2846 | desc->bControlSize); |
2847 | print_bitmap(desc->bmaControls, desc->bControlSize); |
2848 | } |
2849 | |
2850 | static void |
2851 | print_vs_format_uncompressed_descriptor( |
2852 | const uvideo_vs_format_uncompressed_descriptor_t *desc) |
2853 | { |
2854 | printf("Format Uncompressed: " |
2855 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2856 | "bFormatIndex=%d bNumFrameDescriptors=%d " , |
2857 | desc->bLength, |
2858 | desc->bDescriptorType, |
2859 | desc->bDescriptorSubtype, |
2860 | desc->bFormatIndex, |
2861 | desc->bNumFrameDescriptors); |
2862 | usb_guid_print(&desc->guidFormat); |
2863 | printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " |
2864 | "bAspectRatioX=%d bAspectRatioY=%d " |
2865 | "bmInterlaceFlags=0x%02x bCopyProtect=%d" , |
2866 | desc->bBitsPerPixel, |
2867 | desc->bDefaultFrameIndex, |
2868 | desc->bAspectRatioX, |
2869 | desc->bAspectRatioY, |
2870 | desc->bmInterlaceFlags, |
2871 | desc->bCopyProtect); |
2872 | } |
2873 | |
2874 | static void |
2875 | print_vs_frame_uncompressed_descriptor( |
2876 | const uvideo_vs_frame_uncompressed_descriptor_t *desc) |
2877 | { |
2878 | printf("Frame Uncompressed: " |
2879 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2880 | "bFrameIndex=%d bmCapabilities=0x%02x " |
2881 | "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " |
2882 | "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " |
2883 | "bFrameIntervalType=%d" , |
2884 | desc->bLength, |
2885 | desc->bDescriptorType, |
2886 | desc->bDescriptorSubtype, |
2887 | desc->bFrameIndex, |
2888 | desc->bmCapabilities, |
2889 | UGETW(desc->wWidth), |
2890 | UGETW(desc->wHeight), |
2891 | UGETDW(desc->dwMinBitRate), |
2892 | UGETDW(desc->dwMaxBitRate), |
2893 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
2894 | UGETDW(desc->dwDefaultFrameInterval), |
2895 | desc->bFrameIntervalType); |
2896 | } |
2897 | |
2898 | static void |
2899 | print_vs_format_mjpeg_descriptor( |
2900 | const uvideo_vs_format_mjpeg_descriptor_t *desc) |
2901 | { |
2902 | printf("MJPEG format: " |
2903 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2904 | "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " |
2905 | "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " |
2906 | "bmInterlaceFlags=0x%02x bCopyProtect=%d" , |
2907 | desc->bLength, |
2908 | desc->bDescriptorType, |
2909 | desc->bDescriptorSubtype, |
2910 | desc->bFormatIndex, |
2911 | desc->bNumFrameDescriptors, |
2912 | desc->bmFlags, |
2913 | desc->bDefaultFrameIndex, |
2914 | desc->bAspectRatioX, |
2915 | desc->bAspectRatioY, |
2916 | desc->bmInterlaceFlags, |
2917 | desc->bCopyProtect); |
2918 | } |
2919 | |
2920 | static void |
2921 | print_vs_frame_mjpeg_descriptor( |
2922 | const uvideo_vs_frame_mjpeg_descriptor_t *desc) |
2923 | { |
2924 | printf("MJPEG frame: " |
2925 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2926 | "bFrameIndex=%d bmCapabilities=0x%02x " |
2927 | "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " |
2928 | "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " |
2929 | "bFrameIntervalType=%d" , |
2930 | desc->bLength, |
2931 | desc->bDescriptorType, |
2932 | desc->bDescriptorSubtype, |
2933 | desc->bFrameIndex, |
2934 | desc->bmCapabilities, |
2935 | UGETW(desc->wWidth), |
2936 | UGETW(desc->wHeight), |
2937 | UGETDW(desc->dwMinBitRate), |
2938 | UGETDW(desc->dwMaxBitRate), |
2939 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
2940 | UGETDW(desc->dwDefaultFrameInterval), |
2941 | desc->bFrameIntervalType); |
2942 | } |
2943 | |
2944 | static void |
2945 | print_vs_format_dv_descriptor( |
2946 | const uvideo_vs_format_dv_descriptor_t *desc) |
2947 | { |
2948 | printf("MJPEG format: " |
2949 | "Len=%d Type=0x%02x Subtype=0x%02x " |
2950 | "bFormatIndex=%d dwMaxVideoFrameBufferSize=%u " |
2951 | "bFormatType/Rate=%d bFormatType/Format=%d" , |
2952 | desc->bLength, |
2953 | desc->bDescriptorType, |
2954 | desc->bDescriptorSubtype, |
2955 | desc->bFormatIndex, |
2956 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
2957 | UVIDEO_GET_DV_FREQ(desc->bFormatType), |
2958 | UVIDEO_GET_DV_FORMAT(desc->bFormatType)); |
2959 | } |
2960 | |
2961 | #endif /* !UVIDEO_DEBUG */ |
2962 | |
2963 | static const usb_descriptor_t * |
2964 | usb_desc_iter_peek_next(usbd_desc_iter_t *iter) |
2965 | { |
2966 | const usb_descriptor_t *desc; |
2967 | |
2968 | if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { |
2969 | if (iter->cur != iter->end) |
2970 | printf("usb_desc_iter_peek_next: bad descriptor\n" ); |
2971 | return NULL; |
2972 | } |
2973 | desc = (const usb_descriptor_t *)iter->cur; |
2974 | if (desc->bLength == 0) { |
2975 | printf("usb_desc_iter_peek_next: descriptor length = 0\n" ); |
2976 | return NULL; |
2977 | } |
2978 | if (iter->cur + desc->bLength > iter->end) { |
2979 | printf("usb_desc_iter_peek_next: descriptor length too large\n" ); |
2980 | return NULL; |
2981 | } |
2982 | return desc; |
2983 | } |
2984 | |
2985 | /* Return the next interface descriptor, skipping over any other |
2986 | * descriptors. Returns NULL at the end or on error. */ |
2987 | static const usb_interface_descriptor_t * |
2988 | usb_desc_iter_next_interface(usbd_desc_iter_t *iter) |
2989 | { |
2990 | const usb_descriptor_t *desc; |
2991 | |
2992 | while ((desc = usb_desc_iter_peek_next(iter)) != NULL && |
2993 | desc->bDescriptorType != UDESC_INTERFACE) |
2994 | { |
2995 | usb_desc_iter_next(iter); |
2996 | } |
2997 | |
2998 | return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); |
2999 | } |
3000 | |
3001 | /* Returns the next non-interface descriptor, returning NULL when the |
3002 | * next descriptor would be an interface descriptor. */ |
3003 | static const usb_descriptor_t * |
3004 | usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) |
3005 | { |
3006 | const usb_descriptor_t *desc; |
3007 | |
3008 | if ((desc = usb_desc_iter_peek_next(iter)) != NULL && |
3009 | desc->bDescriptorType != UDESC_INTERFACE) |
3010 | { |
3011 | return usb_desc_iter_next(iter); |
3012 | } else { |
3013 | return NULL; |
3014 | } |
3015 | } |
3016 | |
3017 | #ifdef UVIDEO_DEBUG |
3018 | static void |
3019 | usb_guid_print(const usb_guid_t *guid) |
3020 | { |
3021 | printf("%04X-%02X-%02X-" , |
3022 | UGETDW(guid->data1), |
3023 | UGETW(guid->data2), |
3024 | UGETW(guid->data3)); |
3025 | printf("%02X%02X-" , |
3026 | guid->data4[0], |
3027 | guid->data4[1]); |
3028 | printf("%02X%02X%02X%02X%02X%02X" , |
3029 | guid->data4[2], |
3030 | guid->data4[3], |
3031 | guid->data4[4], |
3032 | guid->data4[5], |
3033 | guid->data4[6], |
3034 | guid->data4[7]); |
3035 | } |
3036 | #endif /* !UVIDEO_DEBUG */ |
3037 | |
3038 | /* Returns less than zero, zero, or greater than zero if uguid is less |
3039 | * than, equal to, or greater than guid. */ |
3040 | static int |
3041 | usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) |
3042 | { |
3043 | if (guid->data1 > UGETDW(uguid->data1)) |
3044 | return 1; |
3045 | else if (guid->data1 < UGETDW(uguid->data1)) |
3046 | return -1; |
3047 | |
3048 | if (guid->data2 > UGETW(uguid->data2)) |
3049 | return 1; |
3050 | else if (guid->data2 < UGETW(uguid->data2)) |
3051 | return -1; |
3052 | |
3053 | if (guid->data3 > UGETW(uguid->data3)) |
3054 | return 1; |
3055 | else if (guid->data3 < UGETW(uguid->data3)) |
3056 | return -1; |
3057 | |
3058 | return memcmp(guid->data4, uguid->data4, 8); |
3059 | } |
3060 | |