auvitek_video.c revision 1.5 1 /* $NetBSD: auvitek_video.c,v 1.5 2011/08/09 01:42:24 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 1.5 2011/08/09 01:42:24 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 mutex_enter(&sc->sc_subdev_lock);
177 if (sc->sc_xc5k == NULL) {
178 sc->sc_xc5k = xc5k_open(sc->sc_dev, &sc->sc_i2c, 0xc2 >> 1,
179 auvitek_board_tuner_reset, sc,
180 auvitek_board_get_if_frequency(sc),
181 FE_ATSC);
182 }
183 mutex_exit(&sc->sc_subdev_lock);
184
185 if (sc->sc_xc5k == NULL)
186 return ENXIO;
187
188 return 0;
189 }
190
191 static void
192 auvitek_close(void *opaque)
193 {
194 }
195
196 static const char *
197 auvitek_get_devname(void *opaque)
198 {
199 struct auvitek_softc *sc = opaque;
200
201 return sc->sc_descr;
202 }
203
204 static const char *
205 auvitek_get_businfo(void *opaque)
206 {
207 struct auvitek_softc *sc = opaque;
208
209 return sc->sc_businfo;
210 }
211
212 static int
213 auvitek_enum_format(void *opaque, uint32_t index, struct video_format *format)
214 {
215 if (index != AUVITEK_FORMAT_DEFAULT)
216 return EINVAL;
217
218 format->pixel_format = VIDEO_FORMAT_UYVY;
219
220 return 0;
221 }
222
223 static int
224 auvitek_get_format(void *opaque, struct video_format *format)
225 {
226
227 format->pixel_format = VIDEO_FORMAT_UYVY;
228 format->width = 720;
229 format->height = 480;
230 format->stride = format->width * 2;
231 format->sample_size = format->stride * format->height;
232 format->aspect_x = 4;
233 format->aspect_y = 3;
234 format->color.primaries = VIDEO_COLOR_PRIMARIES_SMPTE_170M;
235 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED;
236 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED;
237 format->interlace_flags = VIDEO_INTERLACE_ON;
238 format->priv = 0;
239
240 return 0;
241 }
242
243 static int
244 auvitek_set_format(void *opaque, struct video_format *format)
245 {
246 if (format->pixel_format != VIDEO_FORMAT_UYVY)
247 return EINVAL;
248
249 return auvitek_get_format(opaque, format);
250 }
251
252 static int
253 auvitek_try_format(void *opaque, struct video_format *format)
254 {
255 return auvitek_get_format(opaque, format);
256 }
257
258 static int
259 auvitek_enum_standard(void *opaque, uint32_t index, enum video_standard *vstd)
260 {
261 switch (index) {
262 case AUVITEK_STANDARD_NTSC_M:
263 *vstd = VIDEO_STANDARD_NTSC_M;
264 return 0;
265 default:
266 return EINVAL;
267 }
268 }
269
270 static int
271 auvitek_get_standard(void *opaque, enum video_standard *vstd)
272 {
273 *vstd = VIDEO_STANDARD_NTSC_M;
274 return 0;
275 }
276
277 static int
278 auvitek_set_standard(void *opaque, enum video_standard vstd)
279 {
280 switch (vstd) {
281 case VIDEO_STANDARD_NTSC_M:
282 return 0;
283 default:
284 return EINVAL;
285 }
286 }
287
288 static int
289 auvitek_start_transfer(void *opaque)
290 {
291 struct auvitek_softc *sc = opaque;
292 int error, s;
293 uint16_t vpos = 0, hpos = 0;
294 uint16_t hres = 720 * 2;
295 uint16_t vres = 484 / 2;
296
297 auvitek_write_1(sc, AU0828_REG_SENSORVBI_CTL, 0x00);
298
299 /* program video position and size */
300 auvitek_write_1(sc, AU0828_REG_HPOS_LO, hpos & 0xff);
301 auvitek_write_1(sc, AU0828_REG_HPOS_HI, hpos >> 8);
302 auvitek_write_1(sc, AU0828_REG_VPOS_LO, vpos & 0xff);
303 auvitek_write_1(sc, AU0828_REG_VPOS_HI, vpos >> 8);
304 auvitek_write_1(sc, AU0828_REG_HRES_LO, hres & 0xff);
305 auvitek_write_1(sc, AU0828_REG_HRES_HI, hres >> 8);
306 auvitek_write_1(sc, AU0828_REG_VRES_LO, vres & 0xff);
307 auvitek_write_1(sc, AU0828_REG_VRES_HI, vres >> 8);
308
309 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3);
310
311 auvitek_write_1(sc, AU0828_REG_AUDIOCTL, 0x01);
312
313 s = splusb();
314 error = auvitek_start_xfer(sc);
315 splx(s);
316
317 if (error)
318 auvitek_stop_transfer(sc);
319
320 return error;
321 }
322
323 static int
324 auvitek_stop_transfer(void *opaque)
325 {
326 struct auvitek_softc *sc = opaque;
327 int error, s;
328
329 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00);
330
331 s = splusb();
332 error = auvitek_stop_xfer(sc);
333 splx(s);
334
335 return error;
336 }
337
338 static int
339 auvitek_get_tuner(void *opaque, struct video_tuner *vt)
340 {
341 struct auvitek_softc *sc = opaque;
342
343 switch (vt->index) {
344 case AUVITEK_TUNER_DEFAULT:
345 strlcpy(vt->name, "XC5000", sizeof(vt->name));
346 vt->freq_lo = 44000000 / 62500;
347 vt->freq_hi = 958000000 / 62500;
348 vt->caps = VIDEO_TUNER_F_STEREO;
349 vt->mode = VIDEO_TUNER_F_STEREO;
350 if (sc->sc_au8522)
351 vt->signal = au8522_get_signal(sc->sc_au8522);
352 else
353 vt->signal = 0;
354 break;
355 default:
356 return EINVAL;
357 }
358
359 return 0;
360 }
361
362 static int
363 auvitek_set_tuner(void *opaque, struct video_tuner *vt)
364 {
365 if (vt->index != AUVITEK_TUNER_DEFAULT)
366 return EINVAL;
367 return 0;
368 }
369
370 static int
371 auvitek_enum_audio(void *opaque, uint32_t index, struct video_audio *va)
372 {
373 switch (index) {
374 case AUVITEK_AUDIO_TELEVISION:
375 strlcpy(va->name, "Television", sizeof(va->name));
376 va->caps = VIDEO_AUDIO_F_STEREO;
377 break;
378 case AUVITEK_AUDIO_LINEIN:
379 strlcpy(va->name, "Line In", sizeof(va->name));
380 va->caps = VIDEO_AUDIO_F_STEREO;
381 break;
382 default:
383 return EINVAL;
384 }
385
386 return 0;
387 }
388
389 static int
390 auvitek_get_audio(void *opaque, struct video_audio *va)
391 {
392 struct auvitek_softc *sc = opaque;
393
394 return auvitek_enum_audio(opaque, sc->sc_ainput, va);
395 }
396
397 static int
398 auvitek_set_audio(void *opaque, struct video_audio *va)
399 {
400 struct auvitek_softc *sc = opaque;
401
402 if (va->index == sc->sc_ainput)
403 return 0;
404
405 return EINVAL;
406 }
407
408 static int
409 auvitek_enum_input(void *opaque, uint32_t index, struct video_input *vi)
410 {
411 switch (index) {
412 case AUVITEK_INPUT_COMPOSITE:
413 strlcpy(vi->name, "Composite", sizeof(vi->name));
414 vi->type = VIDEO_INPUT_TYPE_BASEBAND;
415 vi->standards = VIDEO_STANDARD_NTSC_M;
416 break;
417 case AUVITEK_INPUT_SVIDEO:
418 strlcpy(vi->name, "S-Video", sizeof(vi->name));
419 vi->type = VIDEO_INPUT_TYPE_BASEBAND;
420 vi->standards = VIDEO_STANDARD_NTSC_M;
421 break;
422 case AUVITEK_INPUT_TELEVISION:
423 strlcpy(vi->name, "Television", sizeof(vi->name));
424 vi->type = VIDEO_INPUT_TYPE_TUNER;
425 vi->standards = VIDEO_STANDARD_NTSC_M;
426 break;
427 case AUVITEK_INPUT_CABLE:
428 strlcpy(vi->name, "Cable TV", sizeof(vi->name));
429 vi->type = VIDEO_INPUT_TYPE_TUNER;
430 vi->standards = VIDEO_STANDARD_NTSC_M;
431 break;
432 default:
433 return EINVAL;
434 }
435
436 vi->index = index;
437 vi->tuner_index = AUVITEK_TUNER_DEFAULT;
438
439 return 0;
440 }
441
442 static int
443 auvitek_get_input(void *opaque, struct video_input *vi)
444 {
445 struct auvitek_softc *sc = opaque;
446
447 return auvitek_enum_input(opaque, sc->sc_vinput, vi);
448 }
449
450 static int
451 auvitek_set_input(void *opaque, struct video_input *vi)
452 {
453 struct auvitek_softc *sc = opaque;
454 struct video_frequency vf;
455 au8522_vinput_t vinput = AU8522_VINPUT_UNCONF;
456 au8522_ainput_t ainput = AU8522_AINPUT_UNCONF;
457 uint8_t r;
458
459 switch (vi->index) {
460 case AUVITEK_INPUT_COMPOSITE:
461 vinput = AU8522_VINPUT_CVBS;
462 ainput = AU8522_AINPUT_NONE;
463 sc->sc_ainput = AUVITEK_AUDIO_LINEIN;
464 break;
465 case AUVITEK_INPUT_SVIDEO:
466 vinput = AU8522_VINPUT_SVIDEO;
467 ainput = AU8522_AINPUT_NONE;
468 sc->sc_ainput = AUVITEK_AUDIO_LINEIN;
469 break;
470 case AUVITEK_INPUT_TELEVISION:
471 case AUVITEK_INPUT_CABLE:
472 vinput = AU8522_VINPUT_CVBS_TUNER;
473 ainput = AU8522_AINPUT_SIF;
474 sc->sc_ainput = AUVITEK_AUDIO_TELEVISION;
475 break;
476 default:
477 return EINVAL;
478 }
479
480 sc->sc_vinput = vi->index;
481
482 au8522_set_input(sc->sc_au8522, vinput, ainput);
483
484 /* XXX HVR-850/950Q specific */
485 r = auvitek_read_1(sc, AU0828_REG_GPIO1_OUTEN);
486 if (ainput == AU8522_AINPUT_NONE)
487 r |= 0x10;
488 else
489 r &= ~0x10;
490 auvitek_write_1(sc, AU0828_REG_GPIO1_OUTEN, r);
491
492 if (vinput == AU8522_VINPUT_CVBS_TUNER && sc->sc_curfreq > 0) {
493 vf.tuner_index = AUVITEK_TUNER_DEFAULT;
494 vf.frequency = sc->sc_curfreq;
495 auvitek_set_frequency(sc, &vf);
496 }
497
498 return 0;
499 }
500
501 static int
502 auvitek_get_frequency(void *opaque, struct video_frequency *vf)
503 {
504 struct auvitek_softc *sc = opaque;
505
506 if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION &&
507 sc->sc_vinput != AUVITEK_INPUT_CABLE)
508 return EINVAL;
509
510 vf->tuner_index = AUVITEK_TUNER_DEFAULT;
511 vf->frequency = sc->sc_curfreq;
512
513 return 0;
514 }
515
516 static int
517 auvitek_set_frequency(void *opaque, struct video_frequency *vf)
518 {
519 struct auvitek_softc *sc = opaque;
520 struct xc5k_params params;
521 int error;
522
523 if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION &&
524 sc->sc_vinput != AUVITEK_INPUT_CABLE)
525 return EINVAL;
526 if (vf->tuner_index != AUVITEK_TUNER_DEFAULT)
527 return EINVAL;
528 if (sc->sc_xc5k == NULL)
529 return ENODEV;
530
531 params.standard = VIDEO_STANDARD_NTSC_M;
532 if (sc->sc_vinput == AUVITEK_INPUT_TELEVISION)
533 params.signal_source = XC5K_SIGNAL_SOURCE_AIR;
534 else
535 params.signal_source = XC5K_SIGNAL_SOURCE_CABLE;
536 params.frequency = vf->frequency;
537 if (sc->sc_au8522)
538 au8522_set_audio(sc->sc_au8522, false);
539 error = xc5k_tune_video(sc->sc_xc5k, ¶ms);
540 if (sc->sc_au8522)
541 au8522_set_audio(sc->sc_au8522, true);
542 if (error)
543 return error;
544
545 sc->sc_curfreq = vf->frequency;
546
547 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00);
548 delay(30000);
549 auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3);
550
551 return 0;
552 }
553
554 static int
555 auvitek_start_xfer(struct auvitek_softc *sc)
556 {
557 struct auvitek_xfer *ax = &sc->sc_ax;
558 uint32_t vframe_len, uframe_len, nframes;
559 usbd_status err;
560 int i;
561
562 err = usbd_set_interface(sc->sc_isoc_iface, AUVITEK_XFER_ALTNO);
563 if (err != USBD_NORMAL_COMPLETION) {
564 aprint_error_dev(sc->sc_dev, "couldn't set altno %d: %s\n",
565 AUVITEK_XFER_ALTNO, usbd_errstr(err));
566 return EIO;
567 }
568
569 vframe_len = 720 * 480 * 2;
570 uframe_len = ax->ax_maxpktlen;
571 nframes = (vframe_len + uframe_len - 1) / uframe_len;
572 nframes = (nframes + 7) & ~7;
573
574 ax->ax_nframes = nframes;
575 ax->ax_uframe_len = uframe_len;
576 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
577 struct auvitek_isoc *isoc = &ax->ax_i[i];
578 isoc->i_ax = ax;
579 isoc->i_frlengths =
580 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes,
581 KM_SLEEP);
582 }
583
584 err = usbd_open_pipe(sc->sc_isoc_iface, ax->ax_endpt,
585 USBD_EXCLUSIVE_USE, &ax->ax_pipe);
586 if (err != USBD_NORMAL_COMPLETION) {
587 aprint_error_dev(sc->sc_dev, "couldn't open pipe: %s\n",
588 usbd_errstr(err));
589 return EIO;
590 }
591
592 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
593 struct auvitek_isoc *isoc = &ax->ax_i[i];
594
595 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev);
596 if (isoc->i_xfer == NULL) {
597 aprint_error_dev(sc->sc_dev,
598 "couldn't allocate usb xfer\n");
599 return ENOMEM;
600 }
601
602 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer,
603 nframes * uframe_len);
604 if (isoc->i_buf == NULL) {
605 aprint_error_dev(sc->sc_dev,
606 "couldn't allocate usb xfer buffer\n");
607 return ENOMEM;
608 }
609 }
610
611 return auvitek_isoc_start(sc);
612 }
613
614 static int
615 auvitek_stop_xfer(struct auvitek_softc *sc)
616 {
617 struct auvitek_xfer *ax = &sc->sc_ax;
618 usbd_status err;
619 int i;
620
621 if (ax->ax_pipe != NULL) {
622 usbd_abort_pipe(ax->ax_pipe);
623 usbd_close_pipe(ax->ax_pipe);
624 ax->ax_pipe = NULL;
625 }
626
627 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
628 struct auvitek_isoc *isoc = &ax->ax_i[i];
629 if (isoc->i_xfer != NULL) {
630 usbd_free_buffer(isoc->i_xfer);
631 usbd_free_xfer(isoc->i_xfer);
632 isoc->i_xfer = NULL;
633 }
634 if (isoc->i_frlengths != NULL) {
635 kmem_free(isoc->i_frlengths,
636 sizeof(isoc->i_frlengths[0]) * ax->ax_nframes);
637 isoc->i_frlengths = NULL;
638 }
639 }
640
641 usbd_delay_ms(sc->sc_udev, 1000);
642 err = usbd_set_interface(sc->sc_isoc_iface, 0);
643 if (err != USBD_NORMAL_COMPLETION) {
644 aprint_error_dev(sc->sc_dev,
645 "couldn't set zero bw interface: %s\n",
646 usbd_errstr(err));
647 return EIO;
648 }
649
650 return 0;
651 }
652
653 static int
654 auvitek_isoc_start(struct auvitek_softc *sc)
655 {
656 struct auvitek_xfer *ax = &sc->sc_ax;
657 int i, error;
658
659 ax->ax_av.av_el = ax->ax_av.av_ol = 0;
660 ax->ax_av.av_eb = ax->ax_av.av_ob = 0;
661 ax->ax_av.av_stride = 720 * 2;
662
663 for (i = 0; i < AUVITEK_NISOC_XFERS; i++) {
664 error = auvitek_isoc_start1(&ax->ax_i[i]);
665 if (error)
666 return error;
667 }
668
669 return 0;
670 }
671
672 static int
673 auvitek_isoc_start1(struct auvitek_isoc *isoc)
674 {
675 struct auvitek_xfer *ax = isoc->i_ax;
676 struct auvitek_softc *sc = ax->ax_sc;
677 usbd_status err;
678 unsigned int i;
679
680 ax = isoc->i_ax;
681
682 for (i = 0; i < ax->ax_nframes; i++)
683 isoc->i_frlengths[i] = ax->ax_uframe_len;
684
685 usbd_setup_isoc_xfer(isoc->i_xfer,
686 ax->ax_pipe,
687 isoc,
688 isoc->i_frlengths,
689 ax->ax_nframes,
690 USBD_NO_COPY | USBD_SHORT_XFER_OK,
691 auvitek_isoc_intr);
692
693 err = usbd_transfer(isoc->i_xfer);
694 if (err != USBD_IN_PROGRESS) {
695 aprint_error_dev(sc->sc_dev, "couldn't start isoc xfer: %s\n",
696 usbd_errstr(err));
697 return ENODEV;
698 }
699
700 return 0;
701 }
702
703 static void
704 auvitek_isoc_intr(usbd_xfer_handle xfer, usbd_private_handle priv,
705 usbd_status status)
706 {
707 struct auvitek_isoc *isoc = priv;
708 struct auvitek_xfer *ax = isoc->i_ax;
709 struct auvitek_softc *sc = ax->ax_sc;
710 uint32_t count;
711 uint8_t *buf;
712 unsigned int i;
713
714 if (sc->sc_dying)
715 return;
716
717 if (status != USBD_NORMAL_COMPLETION) {
718 if (status == USBD_STALLED) {
719 usbd_clear_endpoint_stall_async(ax->ax_pipe);
720 goto next;
721 }
722 return;
723 }
724
725 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
726
727 if (count == 0)
728 goto next;
729
730 for (i = 0, buf = isoc->i_buf;
731 i < ax->ax_nframes;
732 ++i, buf += ax->ax_uframe_len) {
733 status = auvitek_isoc_process(sc, buf, isoc->i_frlengths[i]);
734 if (status == USBD_IOERROR)
735 break;
736 }
737
738 next:
739 auvitek_isoc_start1(isoc);
740 }
741
742 static int
743 auvitek_isoc_process(struct auvitek_softc *sc, uint8_t *buf, uint32_t len)
744 {
745 struct video_payload payload;
746 bool submit = false;
747
748 if (buf[0] & 0x80) {
749 sc->sc_ax.ax_frinfo = buf[0];
750 if (sc->sc_ax.ax_frinfo & 0x40) {
751 sc->sc_ax.ax_frno = !sc->sc_ax.ax_frno;
752 submit = true;
753 }
754 buf += 4;
755 len -= 4;
756 }
757 buf += 4;
758 len -= 4;
759
760 auvitek_videobuf_weave(sc, buf, len);
761
762 if (submit) {
763 payload.end_of_frame = 1;
764 payload.data = sc->sc_ax.ax_av.av_buf;
765 payload.size = sizeof(sc->sc_ax.ax_av.av_buf);
766 payload.frameno = -1;
767
768 video_submit_payload(sc->sc_videodev, &payload);
769
770 sc->sc_ax.ax_av.av_el = sc->sc_ax.ax_av.av_ol = 0;
771 sc->sc_ax.ax_av.av_eb = sc->sc_ax.ax_av.av_ob = 0;
772 }
773
774 return USBD_NORMAL_COMPLETION;
775 }
776
777 static void
778 auvitek_videobuf_weave(struct auvitek_softc *sc, uint8_t *buf, uint32_t len)
779 {
780 struct auvitek_videobuf *av = &sc->sc_ax.ax_av;
781 uint32_t resid, wlen;
782 uint32_t *l, *b;
783 uint8_t *vp;
784
785 if (sc->sc_ax.ax_frinfo & 0x40) {
786 l = &av->av_ol;
787 b = &av->av_ob;
788 vp = av->av_buf;
789 } else {
790 l = &av->av_el;
791 b = &av->av_eb;
792 vp = av->av_buf + av->av_stride;
793 }
794
795 resid = len;
796 while (resid > 0) {
797 if (*b == av->av_stride) {
798 *l = *l + 1;
799 *b = 0;
800 }
801 if (*l >= 240) {
802 break;
803 }
804 wlen = min(resid, av->av_stride - *b);
805 memcpy(vp + (av->av_stride * 2 * *l) + *b, buf, wlen);
806 *b += wlen;
807 buf += wlen;
808 resid -= wlen;
809 }
810 }
811