auvitek_video.c revision 1.6 1 /* $NetBSD: auvitek_video.c,v 1.6 2011/10/02 19:15:40 jmcneill Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Jared D. McNeill <jmcneill (at) invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * Auvitek AU0828 USB controller
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: auvitek_video.c,v 1.6 2011/10/02 19:15:40 jmcneill Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/device.h>
39 #include <sys/conf.h>
40 #include <sys/kmem.h>
41 #include <sys/bus.h>
42
43 #include <dev/usb/usb.h>
44 #include <dev/usb/usbdi.h>
45 #include <dev/usb/usbdivar.h>
46 #include <dev/usb/usbdi_util.h>
47 #include <dev/usb/usbdevs.h>
48
49 #include <dev/video_if.h>
50
51 #include <dev/usb/auvitekreg.h>
52 #include <dev/usb/auvitekvar.h>
53
54 #define AUVITEK_FORMAT_DEFAULT 0
55 #define AUVITEK_STANDARD_NTSC_M 0
56 #define AUVITEK_TUNER_DEFAULT 0
57 #define AUVITEK_AUDIO_TELEVISION 0
58 #define AUVITEK_AUDIO_LINEIN 1
59 #define AUVITEK_INPUT_COMPOSITE 0
60 #define AUVITEK_INPUT_SVIDEO 1
61 #define AUVITEK_INPUT_TELEVISION 2
62 #define AUVITEK_INPUT_CABLE 3
63
64 static int auvitek_open(void *, int);
65 static void auvitek_close(void *);
66 static const char * auvitek_get_devname(void *);
67 static const char * auvitek_get_businfo(void *);
68 static int auvitek_enum_format(void *, uint32_t,
69 struct video_format *);
70 static int auvitek_get_format(void *, struct video_format *);
71 static int auvitek_set_format(void *, struct video_format *);
72 static int auvitek_try_format(void *, struct video_format *);
73 static int auvitek_enum_standard(void *, uint32_t,
74 enum video_standard *);
75 static int auvitek_get_standard(void *, enum video_standard *);
76 static int auvitek_set_standard(void *, enum video_standard);
77 static int auvitek_start_transfer(void *);
78 static int auvitek_stop_transfer(void *);
79 static int auvitek_get_tuner(void *, struct video_tuner *);
80 static int auvitek_set_tuner(void *, struct video_tuner *);
81 static int auvitek_enum_audio(void *, uint32_t,
82 struct video_audio *);
83 static int auvitek_get_audio(void *, struct video_audio *);
84 static int auvitek_set_audio(void *, struct video_audio *);
85 static int auvitek_enum_input(void *, uint32_t,
86 struct video_input *);
87 static int auvitek_get_input(void *, struct video_input *);
88 static int auvitek_set_input(void *, struct video_input *);
89 static int auvitek_get_frequency(void *, struct video_frequency *);
90 static int auvitek_set_frequency(void *, struct video_frequency *);
91
92 static int auvitek_start_xfer(struct auvitek_softc *);
93 static int auvitek_stop_xfer(struct auvitek_softc *);
94 static int auvitek_isoc_start(struct auvitek_softc *);
95 static int auvitek_isoc_start1(struct auvitek_isoc *);
96 static void auvitek_isoc_intr(usbd_xfer_handle,
97 usbd_private_handle,
98 usbd_status);
99 static int auvitek_isoc_process(struct auvitek_softc *,
100 uint8_t *, uint32_t);
101 static void auvitek_videobuf_weave(struct auvitek_softc *,
102 uint8_t *, uint32_t);
103
104 static const struct video_hw_if auvitek_video_if = {
105 .open = auvitek_open,
106 .close = auvitek_close,
107 .get_devname = auvitek_get_devname,
108 .get_businfo = auvitek_get_businfo,
109 .enum_format = auvitek_enum_format,
110 .get_format = auvitek_get_format,
111 .set_format = auvitek_set_format,
112 .try_format = auvitek_try_format,
113 .enum_standard = auvitek_enum_standard,
114 .get_standard = auvitek_get_standard,
115 .set_standard = auvitek_set_standard,
116 .start_transfer = auvitek_start_transfer,
117 .stop_transfer = auvitek_stop_transfer,
118 .get_tuner = auvitek_get_tuner,
119 .set_tuner = auvitek_set_tuner,
120 .enum_audio = auvitek_enum_audio,
121 .get_audio = auvitek_get_audio,
122 .set_audio = auvitek_set_audio,
123 .enum_input = auvitek_enum_input,
124 .get_input = auvitek_get_input,
125 .set_input = auvitek_set_input,
126 .get_frequency = auvitek_get_frequency,
127 .set_frequency = auvitek_set_frequency,
128 };
129
130 int
131 auvitek_video_attach(struct auvitek_softc *sc)
132 {
133 snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x",
134 sc->sc_udev->cookie.cookie);
135
136 auvitek_video_rescan(sc, NULL, NULL);
137
138 return (sc->sc_videodev != NULL);
139 }
140
141 int
142 auvitek_video_detach(struct auvitek_softc *sc, int flags)
143 {
144 if (sc->sc_videodev != NULL) {
145 config_detach(sc->sc_videodev, flags);
146 sc->sc_videodev = NULL;
147 }
148
149 return 0;
150 }
151
152 void
153 auvitek_video_rescan(struct auvitek_softc *sc, const char *ifattr,
154 const int *locs)
155 {
156 if (ifattr_match(ifattr, "videobus") && sc->sc_videodev == NULL)
157 sc->sc_videodev = video_attach_mi(&auvitek_video_if,
158 sc->sc_dev);
159 }
160
161 void
162 auvitek_video_childdet(struct auvitek_softc *sc, device_t child)
163 {
164 if (sc->sc_videodev == child)
165 sc->sc_videodev = NULL;
166 }
167
168 static int
169 auvitek_open(void *opaque, int flags)
170 {
171 struct auvitek_softc *sc = opaque;
172
173 if (sc->sc_dying)
174 return EIO;
175
176 auvitek_attach_tuner(sc->sc_dev);
177
178 if (sc->sc_xc5k == NULL)
179 return ENXIO;
180
181 return 0;
182 }
183
184 static void
185 auvitek_close(void *opaque)
186 {
187 }
188
189 static const char *
190 auvitek_get_devname(void *opaque)
191 {
192 struct auvitek_softc *sc = opaque;
193
194 return sc->sc_descr;
195 }
196
197 static const char *
198 auvitek_get_businfo(void *opaque)
199 {
200 struct auvitek_softc *sc = opaque;
201
202 return sc->sc_businfo;
203 }
204
205 static int
206 auvitek_enum_format(void *opaque, uint32_t index, struct video_format *format)
207 {
208 if (index != AUVITEK_FORMAT_DEFAULT)
209 return EINVAL;
210
211 format->pixel_format = VIDEO_FORMAT_UYVY;
212
213 return 0;
214 }
215
216 static int
217 auvitek_get_format(void *opaque, struct video_format *format)
218 {
219
220 format->pixel_format = VIDEO_FORMAT_UYVY;
221 format->width = 720;
222 format->height = 480;
223 format->stride = format->width * 2;
224 format->sample_size = format->stride * format->height;
225 format->aspect_x = 4;
226 format->aspect_y = 3;
227 format->color.primaries = VIDEO_COLOR_PRIMARIES_SMPTE_170M;
228 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED;
229 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED;
230 format->interlace_flags = VIDEO_INTERLACE_ON;
231 format->priv = 0;
232
233 return 0;
234 }
235
236 static int
237 auvitek_set_format(void *opaque, struct video_format *format)
238 {
239 if (format->pixel_format != VIDEO_FORMAT_UYVY)
240 return EINVAL;
241
242 return auvitek_get_format(opaque, format);
243 }
244
245 static int
246 auvitek_try_format(void *opaque, struct video_format *format)
247 {
248 return auvitek_get_format(opaque, format);
249 }
250
251 static int
252 auvitek_enum_standard(void *opaque, uint32_t index, enum video_standard *vstd)
253 {
254 switch (index) {
255 case AUVITEK_STANDARD_NTSC_M:
256 *vstd = VIDEO_STANDARD_NTSC_M;
257 return 0;
258 default:
259 return EINVAL;
260 }
261 }
262
263 static int
264 auvitek_get_standard(void *opaque, enum video_standard *vstd)
265 {
266 *vstd = VIDEO_STANDARD_NTSC_M;
267 return 0;
268 }
269
270 static int
271 auvitek_set_standard(void *opaque, enum video_standard vstd)
272 {
273 switch (vstd) {
274 case VIDEO_STANDARD_NTSC_M:
275 return 0;
276 default:
277 return EINVAL;
278 }
279 }
280
281 static int
282 auvitek_start_transfer(void *opaque)
283 {
284 struct auvitek_softc *sc = opaque;
285 int error, s;
286 uint16_t vpos = 0, hpos = 0;
287 uint16_t hres = 720 * 2;
288 uint16_t vres = 484 / 2;
289
290 auvitek_write_1(sc, AU0828_REG_SENSORVBI_CTL, 0x00);
291
292 /* program video position and size */
293 auvitek_write_1(sc, AU0828_REG_HPOS_LO, hpos & 0xff);
294 auvitek_write_1(sc, AU0828_REG_HPOS_HI, hpos >> 8);
295 auvitek_write_1(sc, AU0828_REG_VPOS_LO, vpos & 0xff);
296 auvitek_write_1(sc, AU0828_REG_VPOS_HI, vpos >> 8);
297 auvitek_write_1(sc, AU0828_REG_HRES_LO, hres & 0xff);
298 auvitek_write_1(sc, AU0828_REG_HRES_HI, hres >> 8);
299 auvitek_write_1(sc, AU0828_REG_VRES_LO, vres & 0xff);
300 auvitek_write_1(sc, AU0828_REG_VRES_HI, vres >> 8);
301
302 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3);
303
304 auvitek_write_1(sc, AU0828_REG_AUDIOCTL, 0x01);
305
306 s = splusb();
307 error = auvitek_start_xfer(sc);
308 splx(s);
309
310 if (error)
311 auvitek_stop_transfer(sc);
312
313 return error;
314 }
315
316 static int
317 auvitek_stop_transfer(void *opaque)
318 {
319 struct auvitek_softc *sc = opaque;
320 int error, s;
321
322 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00);
323
324 s = splusb();
325 error = auvitek_stop_xfer(sc);
326 splx(s);
327
328 return error;
329 }
330
331 static int
332 auvitek_get_tuner(void *opaque, struct video_tuner *vt)
333 {
334 struct auvitek_softc *sc = opaque;
335
336 switch (vt->index) {
337 case AUVITEK_TUNER_DEFAULT:
338 strlcpy(vt->name, "XC5000", sizeof(vt->name));
339 vt->freq_lo = 44000000 / 62500;
340 vt->freq_hi = 958000000 / 62500;
341 vt->caps = VIDEO_TUNER_F_STEREO;
342 vt->mode = VIDEO_TUNER_F_STEREO;
343 if (sc->sc_au8522)
344 vt->signal = au8522_get_signal(sc->sc_au8522);
345 else
346 vt->signal = 0;
347 break;
348 default:
349 return EINVAL;
350 }
351
352 return 0;
353 }
354
355 static int
356 auvitek_set_tuner(void *opaque, struct video_tuner *vt)
357 {
358 if (vt->index != AUVITEK_TUNER_DEFAULT)
359 return EINVAL;
360 return 0;
361 }
362
363 static int
364 auvitek_enum_audio(void *opaque, uint32_t index, struct video_audio *va)
365 {
366 switch (index) {
367 case AUVITEK_AUDIO_TELEVISION:
368 strlcpy(va->name, "Television", sizeof(va->name));
369 va->caps = VIDEO_AUDIO_F_STEREO;
370 break;
371 case AUVITEK_AUDIO_LINEIN:
372 strlcpy(va->name, "Line In", sizeof(va->name));
373 va->caps = VIDEO_AUDIO_F_STEREO;
374 break;
375 default:
376 return EINVAL;
377 }
378
379 return 0;
380 }
381
382 static int
383 auvitek_get_audio(void *opaque, struct video_audio *va)
384 {
385 struct auvitek_softc *sc = opaque;
386
387 return auvitek_enum_audio(opaque, sc->sc_ainput, va);
388 }
389
390 static int
391 auvitek_set_audio(void *opaque, struct video_audio *va)
392 {
393 struct auvitek_softc *sc = opaque;
394
395 if (va->index == sc->sc_ainput)
396 return 0;
397
398 return EINVAL;
399 }
400
401 static int
402 auvitek_enum_input(void *opaque, uint32_t index, struct video_input *vi)
403 {
404 switch (index) {
405 case AUVITEK_INPUT_COMPOSITE:
406 strlcpy(vi->name, "Composite", sizeof(vi->name));
407 vi->type = VIDEO_INPUT_TYPE_BASEBAND;
408 vi->standards = VIDEO_STANDARD_NTSC_M;
409 break;
410 case AUVITEK_INPUT_SVIDEO:
411 strlcpy(vi->name, "S-Video", sizeof(vi->name));
412 vi->type = VIDEO_INPUT_TYPE_BASEBAND;
413 vi->standards = VIDEO_STANDARD_NTSC_M;
414 break;
415 case AUVITEK_INPUT_TELEVISION:
416 strlcpy(vi->name, "Television", sizeof(vi->name));
417 vi->type = VIDEO_INPUT_TYPE_TUNER;
418 vi->standards = VIDEO_STANDARD_NTSC_M;
419 break;
420 case AUVITEK_INPUT_CABLE:
421 strlcpy(vi->name, "Cable TV", sizeof(vi->name));
422 vi->type = VIDEO_INPUT_TYPE_TUNER;
423 vi->standards = VIDEO_STANDARD_NTSC_M;
424 break;
425 default:
426 return EINVAL;
427 }
428
429 vi->index = index;
430 vi->tuner_index = AUVITEK_TUNER_DEFAULT;
431
432 return 0;
433 }
434
435 static int
436 auvitek_get_input(void *opaque, struct video_input *vi)
437 {
438 struct auvitek_softc *sc = opaque;
439
440 return auvitek_enum_input(opaque, sc->sc_vinput, vi);
441 }
442
443 static int
444 auvitek_set_input(void *opaque, struct video_input *vi)
445 {
446 struct auvitek_softc *sc = opaque;
447 struct video_frequency vf;
448 au8522_vinput_t vinput = AU8522_VINPUT_UNCONF;
449 au8522_ainput_t ainput = AU8522_AINPUT_UNCONF;
450 uint8_t r;
451
452 switch (vi->index) {
453 case AUVITEK_INPUT_COMPOSITE:
454 vinput = AU8522_VINPUT_CVBS;
455 ainput = AU8522_AINPUT_NONE;
456 sc->sc_ainput = AUVITEK_AUDIO_LINEIN;
457 break;
458 case AUVITEK_INPUT_SVIDEO:
459 vinput = AU8522_VINPUT_SVIDEO;
460 ainput = AU8522_AINPUT_NONE;
461 sc->sc_ainput = AUVITEK_AUDIO_LINEIN;
462 break;
463 case AUVITEK_INPUT_TELEVISION:
464 case AUVITEK_INPUT_CABLE:
465 vinput = AU8522_VINPUT_CVBS_TUNER;
466 ainput = AU8522_AINPUT_SIF;
467 sc->sc_ainput = AUVITEK_AUDIO_TELEVISION;
468 break;
469 default:
470 return EINVAL;
471 }
472
473 sc->sc_vinput = vi->index;
474
475 au8522_set_input(sc->sc_au8522, vinput, ainput);
476
477 /* XXX HVR-850/950Q specific */
478 r = auvitek_read_1(sc, AU0828_REG_GPIO1_OUTEN);
479 if (ainput == AU8522_AINPUT_NONE)
480 r |= 0x10;
481 else
482 r &= ~0x10;
483 auvitek_write_1(sc, AU0828_REG_GPIO1_OUTEN, r);
484
485 if (vinput == AU8522_VINPUT_CVBS_TUNER && sc->sc_curfreq > 0) {
486 vf.tuner_index = AUVITEK_TUNER_DEFAULT;
487 vf.frequency = sc->sc_curfreq;
488 auvitek_set_frequency(sc, &vf);
489 }
490
491 return 0;
492 }
493
494 static int
495 auvitek_get_frequency(void *opaque, struct video_frequency *vf)
496 {
497 struct auvitek_softc *sc = opaque;
498
499 if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION &&
500 sc->sc_vinput != AUVITEK_INPUT_CABLE)
501 return EINVAL;
502
503 vf->tuner_index = AUVITEK_TUNER_DEFAULT;
504 vf->frequency = sc->sc_curfreq;
505
506 return 0;
507 }
508
509 static int
510 auvitek_set_frequency(void *opaque, struct video_frequency *vf)
511 {
512 struct auvitek_softc *sc = opaque;
513 struct xc5k_params params;
514 int error;
515
516 if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION &&
517 sc->sc_vinput != AUVITEK_INPUT_CABLE)
518 return EINVAL;
519 if (vf->tuner_index != AUVITEK_TUNER_DEFAULT)
520 return EINVAL;
521 if (sc->sc_xc5k == NULL)
522 return ENODEV;
523
524 params.standard = VIDEO_STANDARD_NTSC_M;
525 if (sc->sc_vinput == AUVITEK_INPUT_TELEVISION)
526 params.signal_source = XC5K_SIGNAL_SOURCE_AIR;
527 else
528 params.signal_source = XC5K_SIGNAL_SOURCE_CABLE;
529 params.frequency = vf->frequency;
530 if (sc->sc_au8522)
531 au8522_set_audio(sc->sc_au8522, false);
532 error = xc5k_tune_video(sc->sc_xc5k, ¶ms);
533 if (sc->sc_au8522)
534 au8522_set_audio(sc->sc_au8522, true);
535 if (error)
536 return error;
537
538 sc->sc_curfreq = vf->frequency;
539
540 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00);
541 delay(30000);
542 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3);
543
544 return 0;
545 }
546
547 static int
548 auvitek_start_xfer(struct auvitek_softc *sc)
549 {
550 struct auvitek_xfer *ax = &sc->sc_ax;
551 uint32_t vframe_len, uframe_len, nframes;
552 usbd_status err;
553 int i;
554
555 err = usbd_set_interface(sc->sc_isoc_iface, AUVITEK_XFER_ALTNO);
556 if (err != USBD_NORMAL_COMPLETION) {
557 aprint_error_dev(sc->sc_dev, "couldn't set altno %d: %s\n",
558 AUVITEK_XFER_ALTNO, usbd_errstr(err));
559 return EIO;
560 }
561
562 vframe_len = 720 * 480 * 2;
563 uframe_len = ax->ax_maxpktlen;
564 nframes = (vframe_len + uframe_len - 1) / uframe_len;
565 nframes = (nframes + 7) & ~7;
566
567 ax->ax_nframes = nframes;
568 ax->ax_uframe_len = uframe_len;
569 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
570 struct auvitek_isoc *isoc = &ax->ax_i[i];
571 isoc->i_ax = ax;
572 isoc->i_frlengths =
573 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes,
574 KM_SLEEP);
575 }
576
577 err = usbd_open_pipe(sc->sc_isoc_iface, ax->ax_endpt,
578 USBD_EXCLUSIVE_USE, &ax->ax_pipe);
579 if (err != USBD_NORMAL_COMPLETION) {
580 aprint_error_dev(sc->sc_dev, "couldn't open pipe: %s\n",
581 usbd_errstr(err));
582 return EIO;
583 }
584
585 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
586 struct auvitek_isoc *isoc = &ax->ax_i[i];
587
588 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev);
589 if (isoc->i_xfer == NULL) {
590 aprint_error_dev(sc->sc_dev,
591 "couldn't allocate usb xfer\n");
592 return ENOMEM;
593 }
594
595 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer,
596 nframes * uframe_len);
597 if (isoc->i_buf == NULL) {
598 aprint_error_dev(sc->sc_dev,
599 "couldn't allocate usb xfer buffer\n");
600 return ENOMEM;
601 }
602 }
603
604 return auvitek_isoc_start(sc);
605 }
606
607 static int
608 auvitek_stop_xfer(struct auvitek_softc *sc)
609 {
610 struct auvitek_xfer *ax = &sc->sc_ax;
611 usbd_status err;
612 int i;
613
614 if (ax->ax_pipe != NULL) {
615 usbd_abort_pipe(ax->ax_pipe);
616 usbd_close_pipe(ax->ax_pipe);
617 ax->ax_pipe = NULL;
618 }
619
620 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
621 struct auvitek_isoc *isoc = &ax->ax_i[i];
622 if (isoc->i_xfer != NULL) {
623 usbd_free_buffer(isoc->i_xfer);
624 usbd_free_xfer(isoc->i_xfer);
625 isoc->i_xfer = NULL;
626 }
627 if (isoc->i_frlengths != NULL) {
628 kmem_free(isoc->i_frlengths,
629 sizeof(isoc->i_frlengths[0]) * ax->ax_nframes);
630 isoc->i_frlengths = NULL;
631 }
632 }
633
634 usbd_delay_ms(sc->sc_udev, 1000);
635 err = usbd_set_interface(sc->sc_isoc_iface, 0);
636 if (err != USBD_NORMAL_COMPLETION) {
637 aprint_error_dev(sc->sc_dev,
638 "couldn't set zero bw interface: %s\n",
639 usbd_errstr(err));
640 return EIO;
641 }
642
643 return 0;
644 }
645
646 static int
647 auvitek_isoc_start(struct auvitek_softc *sc)
648 {
649 struct auvitek_xfer *ax = &sc->sc_ax;
650 int i, error;
651
652 ax->ax_av.av_el = ax->ax_av.av_ol = 0;
653 ax->ax_av.av_eb = ax->ax_av.av_ob = 0;
654 ax->ax_av.av_stride = 720 * 2;
655
656 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
657 error = auvitek_isoc_start1(&ax->ax_i[i]);
658 if (error)
659 return error;
660 }
661
662 return 0;
663 }
664
665 static int
666 auvitek_isoc_start1(struct auvitek_isoc *isoc)
667 {
668 struct auvitek_xfer *ax = isoc->i_ax;
669 struct auvitek_softc *sc = ax->ax_sc;
670 usbd_status err;
671 unsigned int i;
672
673 ax = isoc->i_ax;
674
675 for (i = 0; i < ax->ax_nframes; i++)
676 isoc->i_frlengths[i] = ax->ax_uframe_len;
677
678 usbd_setup_isoc_xfer(isoc->i_xfer,
679 ax->ax_pipe,
680 isoc,
681 isoc->i_frlengths,
682 ax->ax_nframes,
683 USBD_NO_COPY | USBD_SHORT_XFER_OK,
684 auvitek_isoc_intr);
685
686 err = usbd_transfer(isoc->i_xfer);
687 if (err != USBD_IN_PROGRESS) {
688 aprint_error_dev(sc->sc_dev, "couldn't start isoc xfer: %s\n",
689 usbd_errstr(err));
690 return ENODEV;
691 }
692
693 return 0;
694 }
695
696 static void
697 auvitek_isoc_intr(usbd_xfer_handle xfer, usbd_private_handle priv,
698 usbd_status status)
699 {
700 struct auvitek_isoc *isoc = priv;
701 struct auvitek_xfer *ax = isoc->i_ax;
702 struct auvitek_softc *sc = ax->ax_sc;
703 uint32_t count;
704 uint8_t *buf;
705 unsigned int i;
706
707 if (sc->sc_dying)
708 return;
709
710 if (status != USBD_NORMAL_COMPLETION) {
711 if (status == USBD_STALLED) {
712 usbd_clear_endpoint_stall_async(ax->ax_pipe);
713 goto next;
714 }
715 return;
716 }
717
718 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
719
720 if (count == 0)
721 goto next;
722
723 for (i = 0, buf = isoc->i_buf;
724 i < ax->ax_nframes;
725 ++i, buf += ax->ax_uframe_len) {
726 status = auvitek_isoc_process(sc, buf, isoc->i_frlengths[i]);
727 if (status == USBD_IOERROR)
728 break;
729 }
730
731 next:
732 auvitek_isoc_start1(isoc);
733 }
734
735 static int
736 auvitek_isoc_process(struct auvitek_softc *sc, uint8_t *buf, uint32_t len)
737 {
738 struct video_payload payload;
739 bool submit = false;
740
741 if (buf[0] & 0x80) {
742 sc->sc_ax.ax_frinfo = buf[0];
743 if (sc->sc_ax.ax_frinfo & 0x40) {
744 sc->sc_ax.ax_frno = !sc->sc_ax.ax_frno;
745 submit = true;
746 }
747 buf += 4;
748 len -= 4;
749 }
750 buf += 4;
751 len -= 4;
752
753 auvitek_videobuf_weave(sc, buf, len);
754
755 if (submit) {
756 payload.end_of_frame = 1;
757 payload.data = sc->sc_ax.ax_av.av_buf;
758 payload.size = sizeof(sc->sc_ax.ax_av.av_buf);
759 payload.frameno = -1;
760
761 video_submit_payload(sc->sc_videodev, &payload);
762
763 sc->sc_ax.ax_av.av_el = sc->sc_ax.ax_av.av_ol = 0;
764 sc->sc_ax.ax_av.av_eb = sc->sc_ax.ax_av.av_ob = 0;
765 }
766
767 return USBD_NORMAL_COMPLETION;
768 }
769
770 static void
771 auvitek_videobuf_weave(struct auvitek_softc *sc, uint8_t *buf, uint32_t len)
772 {
773 struct auvitek_videobuf *av = &sc->sc_ax.ax_av;
774 uint32_t resid, wlen;
775 uint32_t *l, *b;
776 uint8_t *vp;
777
778 if (sc->sc_ax.ax_frinfo & 0x40) {
779 l = &av->av_ol;
780 b = &av->av_ob;
781 vp = av->av_buf;
782 } else {
783 l = &av->av_el;
784 b = &av->av_eb;
785 vp = av->av_buf + av->av_stride;
786 }
787
788 resid = len;
789 while (resid > 0) {
790 if (*b == av->av_stride) {
791 *l = *l + 1;
792 *b = 0;
793 }
794 if (*l >= 240) {
795 break;
796 }
797 wlen = min(resid, av->av_stride - *b);
798 memcpy(vp + (av->av_stride * 2 * *l) + *b, buf, wlen);
799 *b += wlen;
800 buf += wlen;
801 resid -= wlen;
802 }
803 }
804