1 | /* $NetBSD: auvitek_video.c,v 1.7 2016/04/23 10:15:31 skrll Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2010 Jared D. McNeill <jmcneill@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 1.7 2016/04/23 10:15:31 skrll 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(struct usbd_xfer *, void *, |
97 | usbd_status); |
98 | static int auvitek_isoc_process(struct auvitek_softc *, |
99 | uint8_t *, uint32_t); |
100 | static void auvitek_videobuf_weave(struct auvitek_softc *, |
101 | uint8_t *, uint32_t); |
102 | |
103 | static const struct video_hw_if auvitek_video_if = { |
104 | .open = auvitek_open, |
105 | .close = auvitek_close, |
106 | .get_devname = auvitek_get_devname, |
107 | .get_businfo = auvitek_get_businfo, |
108 | .enum_format = auvitek_enum_format, |
109 | .get_format = auvitek_get_format, |
110 | .set_format = auvitek_set_format, |
111 | .try_format = auvitek_try_format, |
112 | .enum_standard = auvitek_enum_standard, |
113 | .get_standard = auvitek_get_standard, |
114 | .set_standard = auvitek_set_standard, |
115 | .start_transfer = auvitek_start_transfer, |
116 | .stop_transfer = auvitek_stop_transfer, |
117 | .get_tuner = auvitek_get_tuner, |
118 | .set_tuner = auvitek_set_tuner, |
119 | .enum_audio = auvitek_enum_audio, |
120 | .get_audio = auvitek_get_audio, |
121 | .set_audio = auvitek_set_audio, |
122 | .enum_input = auvitek_enum_input, |
123 | .get_input = auvitek_get_input, |
124 | .set_input = auvitek_set_input, |
125 | .get_frequency = auvitek_get_frequency, |
126 | .set_frequency = auvitek_set_frequency, |
127 | }; |
128 | |
129 | int |
130 | auvitek_video_attach(struct auvitek_softc *sc) |
131 | { |
132 | snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x" , |
133 | sc->sc_udev->ud_cookie.cookie); |
134 | |
135 | auvitek_video_rescan(sc, NULL, NULL); |
136 | |
137 | return (sc->sc_videodev != NULL); |
138 | } |
139 | |
140 | int |
141 | auvitek_video_detach(struct auvitek_softc *sc, int flags) |
142 | { |
143 | if (sc->sc_videodev != NULL) { |
144 | config_detach(sc->sc_videodev, flags); |
145 | sc->sc_videodev = NULL; |
146 | } |
147 | |
148 | return 0; |
149 | } |
150 | |
151 | void |
152 | auvitek_video_rescan(struct auvitek_softc *sc, const char *ifattr, |
153 | const int *locs) |
154 | { |
155 | if (ifattr_match(ifattr, "videobus" ) && sc->sc_videodev == NULL) |
156 | sc->sc_videodev = video_attach_mi(&auvitek_video_if, |
157 | sc->sc_dev); |
158 | } |
159 | |
160 | void |
161 | auvitek_video_childdet(struct auvitek_softc *sc, device_t child) |
162 | { |
163 | if (sc->sc_videodev == child) |
164 | sc->sc_videodev = NULL; |
165 | } |
166 | |
167 | static int |
168 | auvitek_open(void *opaque, int flags) |
169 | { |
170 | struct auvitek_softc *sc = opaque; |
171 | |
172 | if (sc->sc_dying) |
173 | return EIO; |
174 | |
175 | auvitek_attach_tuner(sc->sc_dev); |
176 | |
177 | if (sc->sc_xc5k == NULL) |
178 | return ENXIO; |
179 | |
180 | return 0; |
181 | } |
182 | |
183 | static void |
184 | auvitek_close(void *opaque) |
185 | { |
186 | } |
187 | |
188 | static const char * |
189 | auvitek_get_devname(void *opaque) |
190 | { |
191 | struct auvitek_softc *sc = opaque; |
192 | |
193 | return sc->sc_descr; |
194 | } |
195 | |
196 | static const char * |
197 | auvitek_get_businfo(void *opaque) |
198 | { |
199 | struct auvitek_softc *sc = opaque; |
200 | |
201 | return sc->sc_businfo; |
202 | } |
203 | |
204 | static int |
205 | auvitek_enum_format(void *opaque, uint32_t index, struct video_format *format) |
206 | { |
207 | if (index != AUVITEK_FORMAT_DEFAULT) |
208 | return EINVAL; |
209 | |
210 | format->pixel_format = VIDEO_FORMAT_UYVY; |
211 | |
212 | return 0; |
213 | } |
214 | |
215 | static int |
216 | auvitek_get_format(void *opaque, struct video_format *format) |
217 | { |
218 | |
219 | format->pixel_format = VIDEO_FORMAT_UYVY; |
220 | format->width = 720; |
221 | format->height = 480; |
222 | format->stride = format->width * 2; |
223 | format->sample_size = format->stride * format->height; |
224 | format->aspect_x = 4; |
225 | format->aspect_y = 3; |
226 | format->color.primaries = VIDEO_COLOR_PRIMARIES_SMPTE_170M; |
227 | format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; |
228 | format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; |
229 | format->interlace_flags = VIDEO_INTERLACE_ON; |
230 | format->priv = 0; |
231 | |
232 | return 0; |
233 | } |
234 | |
235 | static int |
236 | auvitek_set_format(void *opaque, struct video_format *format) |
237 | { |
238 | if (format->pixel_format != VIDEO_FORMAT_UYVY) |
239 | return EINVAL; |
240 | |
241 | return auvitek_get_format(opaque, format); |
242 | } |
243 | |
244 | static int |
245 | auvitek_try_format(void *opaque, struct video_format *format) |
246 | { |
247 | return auvitek_get_format(opaque, format); |
248 | } |
249 | |
250 | static int |
251 | auvitek_enum_standard(void *opaque, uint32_t index, enum video_standard *vstd) |
252 | { |
253 | switch (index) { |
254 | case AUVITEK_STANDARD_NTSC_M: |
255 | *vstd = VIDEO_STANDARD_NTSC_M; |
256 | return 0; |
257 | default: |
258 | return EINVAL; |
259 | } |
260 | } |
261 | |
262 | static int |
263 | auvitek_get_standard(void *opaque, enum video_standard *vstd) |
264 | { |
265 | *vstd = VIDEO_STANDARD_NTSC_M; |
266 | return 0; |
267 | } |
268 | |
269 | static int |
270 | auvitek_set_standard(void *opaque, enum video_standard vstd) |
271 | { |
272 | switch (vstd) { |
273 | case VIDEO_STANDARD_NTSC_M: |
274 | return 0; |
275 | default: |
276 | return EINVAL; |
277 | } |
278 | } |
279 | |
280 | static int |
281 | auvitek_start_transfer(void *opaque) |
282 | { |
283 | struct auvitek_softc *sc = opaque; |
284 | int error, s; |
285 | uint16_t vpos = 0, hpos = 0; |
286 | uint16_t hres = 720 * 2; |
287 | uint16_t vres = 484 / 2; |
288 | |
289 | auvitek_write_1(sc, AU0828_REG_SENSORVBI_CTL, 0x00); |
290 | |
291 | /* program video position and size */ |
292 | auvitek_write_1(sc, AU0828_REG_HPOS_LO, hpos & 0xff); |
293 | auvitek_write_1(sc, AU0828_REG_HPOS_HI, hpos >> 8); |
294 | auvitek_write_1(sc, AU0828_REG_VPOS_LO, vpos & 0xff); |
295 | auvitek_write_1(sc, AU0828_REG_VPOS_HI, vpos >> 8); |
296 | auvitek_write_1(sc, AU0828_REG_HRES_LO, hres & 0xff); |
297 | auvitek_write_1(sc, AU0828_REG_HRES_HI, hres >> 8); |
298 | auvitek_write_1(sc, AU0828_REG_VRES_LO, vres & 0xff); |
299 | auvitek_write_1(sc, AU0828_REG_VRES_HI, vres >> 8); |
300 | |
301 | auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3); |
302 | |
303 | auvitek_write_1(sc, AU0828_REG_AUDIOCTL, 0x01); |
304 | |
305 | s = splusb(); |
306 | error = auvitek_start_xfer(sc); |
307 | splx(s); |
308 | |
309 | if (error) |
310 | auvitek_stop_transfer(sc); |
311 | |
312 | return error; |
313 | } |
314 | |
315 | static int |
316 | auvitek_stop_transfer(void *opaque) |
317 | { |
318 | struct auvitek_softc *sc = opaque; |
319 | int error, s; |
320 | |
321 | auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00); |
322 | |
323 | s = splusb(); |
324 | error = auvitek_stop_xfer(sc); |
325 | splx(s); |
326 | |
327 | return error; |
328 | } |
329 | |
330 | static int |
331 | auvitek_get_tuner(void *opaque, struct video_tuner *vt) |
332 | { |
333 | struct auvitek_softc *sc = opaque; |
334 | |
335 | switch (vt->index) { |
336 | case AUVITEK_TUNER_DEFAULT: |
337 | strlcpy(vt->name, "XC5000" , sizeof(vt->name)); |
338 | vt->freq_lo = 44000000 / 62500; |
339 | vt->freq_hi = 958000000 / 62500; |
340 | vt->caps = VIDEO_TUNER_F_STEREO; |
341 | vt->mode = VIDEO_TUNER_F_STEREO; |
342 | if (sc->sc_au8522) |
343 | vt->signal = au8522_get_signal(sc->sc_au8522); |
344 | else |
345 | vt->signal = 0; |
346 | break; |
347 | default: |
348 | return EINVAL; |
349 | } |
350 | |
351 | return 0; |
352 | } |
353 | |
354 | static int |
355 | auvitek_set_tuner(void *opaque, struct video_tuner *vt) |
356 | { |
357 | if (vt->index != AUVITEK_TUNER_DEFAULT) |
358 | return EINVAL; |
359 | return 0; |
360 | } |
361 | |
362 | static int |
363 | auvitek_enum_audio(void *opaque, uint32_t index, struct video_audio *va) |
364 | { |
365 | switch (index) { |
366 | case AUVITEK_AUDIO_TELEVISION: |
367 | strlcpy(va->name, "Television" , sizeof(va->name)); |
368 | va->caps = VIDEO_AUDIO_F_STEREO; |
369 | break; |
370 | case AUVITEK_AUDIO_LINEIN: |
371 | strlcpy(va->name, "Line In" , sizeof(va->name)); |
372 | va->caps = VIDEO_AUDIO_F_STEREO; |
373 | break; |
374 | default: |
375 | return EINVAL; |
376 | } |
377 | |
378 | return 0; |
379 | } |
380 | |
381 | static int |
382 | auvitek_get_audio(void *opaque, struct video_audio *va) |
383 | { |
384 | struct auvitek_softc *sc = opaque; |
385 | |
386 | return auvitek_enum_audio(opaque, sc->sc_ainput, va); |
387 | } |
388 | |
389 | static int |
390 | auvitek_set_audio(void *opaque, struct video_audio *va) |
391 | { |
392 | struct auvitek_softc *sc = opaque; |
393 | |
394 | if (va->index == sc->sc_ainput) |
395 | return 0; |
396 | |
397 | return EINVAL; |
398 | } |
399 | |
400 | static int |
401 | auvitek_enum_input(void *opaque, uint32_t index, struct video_input *vi) |
402 | { |
403 | switch (index) { |
404 | case AUVITEK_INPUT_COMPOSITE: |
405 | strlcpy(vi->name, "Composite" , sizeof(vi->name)); |
406 | vi->type = VIDEO_INPUT_TYPE_BASEBAND; |
407 | vi->standards = VIDEO_STANDARD_NTSC_M; |
408 | break; |
409 | case AUVITEK_INPUT_SVIDEO: |
410 | strlcpy(vi->name, "S-Video" , sizeof(vi->name)); |
411 | vi->type = VIDEO_INPUT_TYPE_BASEBAND; |
412 | vi->standards = VIDEO_STANDARD_NTSC_M; |
413 | break; |
414 | case AUVITEK_INPUT_TELEVISION: |
415 | strlcpy(vi->name, "Television" , sizeof(vi->name)); |
416 | vi->type = VIDEO_INPUT_TYPE_TUNER; |
417 | vi->standards = VIDEO_STANDARD_NTSC_M; |
418 | break; |
419 | case AUVITEK_INPUT_CABLE: |
420 | strlcpy(vi->name, "Cable TV" , sizeof(vi->name)); |
421 | vi->type = VIDEO_INPUT_TYPE_TUNER; |
422 | vi->standards = VIDEO_STANDARD_NTSC_M; |
423 | break; |
424 | default: |
425 | return EINVAL; |
426 | } |
427 | |
428 | vi->index = index; |
429 | vi->tuner_index = AUVITEK_TUNER_DEFAULT; |
430 | |
431 | return 0; |
432 | } |
433 | |
434 | static int |
435 | auvitek_get_input(void *opaque, struct video_input *vi) |
436 | { |
437 | struct auvitek_softc *sc = opaque; |
438 | |
439 | return auvitek_enum_input(opaque, sc->sc_vinput, vi); |
440 | } |
441 | |
442 | static int |
443 | auvitek_set_input(void *opaque, struct video_input *vi) |
444 | { |
445 | struct auvitek_softc *sc = opaque; |
446 | struct video_frequency vf; |
447 | au8522_vinput_t vinput = AU8522_VINPUT_UNCONF; |
448 | au8522_ainput_t ainput = AU8522_AINPUT_UNCONF; |
449 | uint8_t r; |
450 | |
451 | switch (vi->index) { |
452 | case AUVITEK_INPUT_COMPOSITE: |
453 | vinput = AU8522_VINPUT_CVBS; |
454 | ainput = AU8522_AINPUT_NONE; |
455 | sc->sc_ainput = AUVITEK_AUDIO_LINEIN; |
456 | break; |
457 | case AUVITEK_INPUT_SVIDEO: |
458 | vinput = AU8522_VINPUT_SVIDEO; |
459 | ainput = AU8522_AINPUT_NONE; |
460 | sc->sc_ainput = AUVITEK_AUDIO_LINEIN; |
461 | break; |
462 | case AUVITEK_INPUT_TELEVISION: |
463 | case AUVITEK_INPUT_CABLE: |
464 | vinput = AU8522_VINPUT_CVBS_TUNER; |
465 | ainput = AU8522_AINPUT_SIF; |
466 | sc->sc_ainput = AUVITEK_AUDIO_TELEVISION; |
467 | break; |
468 | default: |
469 | return EINVAL; |
470 | } |
471 | |
472 | sc->sc_vinput = vi->index; |
473 | |
474 | au8522_set_input(sc->sc_au8522, vinput, ainput); |
475 | |
476 | /* XXX HVR-850/950Q specific */ |
477 | r = auvitek_read_1(sc, AU0828_REG_GPIO1_OUTEN); |
478 | if (ainput == AU8522_AINPUT_NONE) |
479 | r |= 0x10; |
480 | else |
481 | r &= ~0x10; |
482 | auvitek_write_1(sc, AU0828_REG_GPIO1_OUTEN, r); |
483 | |
484 | if (vinput == AU8522_VINPUT_CVBS_TUNER && sc->sc_curfreq > 0) { |
485 | vf.tuner_index = AUVITEK_TUNER_DEFAULT; |
486 | vf.frequency = sc->sc_curfreq; |
487 | auvitek_set_frequency(sc, &vf); |
488 | } |
489 | |
490 | return 0; |
491 | } |
492 | |
493 | static int |
494 | auvitek_get_frequency(void *opaque, struct video_frequency *vf) |
495 | { |
496 | struct auvitek_softc *sc = opaque; |
497 | |
498 | if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION && |
499 | sc->sc_vinput != AUVITEK_INPUT_CABLE) |
500 | return EINVAL; |
501 | |
502 | vf->tuner_index = AUVITEK_TUNER_DEFAULT; |
503 | vf->frequency = sc->sc_curfreq; |
504 | |
505 | return 0; |
506 | } |
507 | |
508 | static int |
509 | auvitek_set_frequency(void *opaque, struct video_frequency *vf) |
510 | { |
511 | struct auvitek_softc *sc = opaque; |
512 | struct xc5k_params params; |
513 | int error; |
514 | |
515 | if (sc->sc_vinput != AUVITEK_INPUT_TELEVISION && |
516 | sc->sc_vinput != AUVITEK_INPUT_CABLE) |
517 | return EINVAL; |
518 | if (vf->tuner_index != AUVITEK_TUNER_DEFAULT) |
519 | return EINVAL; |
520 | if (sc->sc_xc5k == NULL) |
521 | return ENODEV; |
522 | |
523 | params.standard = VIDEO_STANDARD_NTSC_M; |
524 | if (sc->sc_vinput == AUVITEK_INPUT_TELEVISION) |
525 | params.signal_source = XC5K_SIGNAL_SOURCE_AIR; |
526 | else |
527 | params.signal_source = XC5K_SIGNAL_SOURCE_CABLE; |
528 | params.frequency = vf->frequency; |
529 | if (sc->sc_au8522) |
530 | au8522_set_audio(sc->sc_au8522, false); |
531 | error = xc5k_tune_video(sc->sc_xc5k, ¶ms); |
532 | if (sc->sc_au8522) |
533 | au8522_set_audio(sc->sc_au8522, true); |
534 | if (error) |
535 | return error; |
536 | |
537 | sc->sc_curfreq = vf->frequency; |
538 | |
539 | auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0x00); |
540 | delay(30000); |
541 | auvitek_write_1(sc, AU0828_REG_SENSOR_CTL, 0xb3); |
542 | |
543 | return 0; |
544 | } |
545 | |
546 | static int |
547 | auvitek_start_xfer(struct auvitek_softc *sc) |
548 | { |
549 | struct auvitek_xfer *ax = &sc->sc_ax; |
550 | uint32_t vframe_len, uframe_len, nframes; |
551 | usbd_status err; |
552 | int i; |
553 | |
554 | err = usbd_set_interface(sc->sc_isoc_iface, AUVITEK_XFER_ALTNO); |
555 | if (err != USBD_NORMAL_COMPLETION) { |
556 | aprint_error_dev(sc->sc_dev, "couldn't set altno %d: %s\n" , |
557 | AUVITEK_XFER_ALTNO, usbd_errstr(err)); |
558 | return EIO; |
559 | } |
560 | |
561 | vframe_len = 720 * 480 * 2; |
562 | uframe_len = ax->ax_maxpktlen; |
563 | nframes = (vframe_len + uframe_len - 1) / uframe_len; |
564 | nframes = (nframes + 7) & ~7; |
565 | |
566 | ax->ax_nframes = nframes; |
567 | ax->ax_uframe_len = uframe_len; |
568 | for (i = 0; i < AUVITEK_NISOC_XFERS; i++) { |
569 | struct auvitek_isoc *isoc = &ax->ax_i[i]; |
570 | isoc->i_ax = ax; |
571 | isoc->i_frlengths = |
572 | kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, |
573 | KM_SLEEP); |
574 | } |
575 | |
576 | err = usbd_open_pipe(sc->sc_isoc_iface, ax->ax_endpt, |
577 | USBD_EXCLUSIVE_USE, &ax->ax_pipe); |
578 | if (err != USBD_NORMAL_COMPLETION) { |
579 | aprint_error_dev(sc->sc_dev, "couldn't open pipe: %s\n" , |
580 | usbd_errstr(err)); |
581 | return EIO; |
582 | } |
583 | |
584 | for (i = 0; i < AUVITEK_NISOC_XFERS; i++) { |
585 | struct auvitek_isoc *isoc = &ax->ax_i[i]; |
586 | |
587 | int error = usbd_create_xfer(ax->ax_pipe, |
588 | nframes * uframe_len, 0, ax->ax_nframes, &isoc->i_xfer); |
589 | if (error) { |
590 | aprint_error_dev(sc->sc_dev, |
591 | "couldn't create usb xfer\n" ); |
592 | return error; |
593 | } |
594 | |
595 | isoc->i_buf = usbd_get_buffer(isoc->i_xfer); |
596 | } |
597 | |
598 | return auvitek_isoc_start(sc); |
599 | } |
600 | |
601 | static int |
602 | auvitek_stop_xfer(struct auvitek_softc *sc) |
603 | { |
604 | struct auvitek_xfer *ax = &sc->sc_ax; |
605 | usbd_status err; |
606 | int i; |
607 | |
608 | if (ax->ax_pipe != NULL) { |
609 | usbd_abort_pipe(ax->ax_pipe); |
610 | } |
611 | for (i = 0; i < AUVITEK_NISOC_XFERS; i++) { |
612 | struct auvitek_isoc *isoc = &ax->ax_i[i]; |
613 | if (isoc->i_xfer != NULL) { |
614 | usbd_destroy_xfer(isoc->i_xfer); |
615 | isoc->i_xfer = NULL; |
616 | } |
617 | if (isoc->i_frlengths != NULL) { |
618 | kmem_free(isoc->i_frlengths, |
619 | sizeof(isoc->i_frlengths[0]) * ax->ax_nframes); |
620 | isoc->i_frlengths = NULL; |
621 | } |
622 | } |
623 | if (ax->ax_pipe != NULL) { |
624 | usbd_close_pipe(ax->ax_pipe); |
625 | ax->ax_pipe = NULL; |
626 | } |
627 | |
628 | usbd_delay_ms(sc->sc_udev, 1000); |
629 | err = usbd_set_interface(sc->sc_isoc_iface, 0); |
630 | if (err != USBD_NORMAL_COMPLETION) { |
631 | aprint_error_dev(sc->sc_dev, |
632 | "couldn't set zero bw interface: %s\n" , |
633 | usbd_errstr(err)); |
634 | return EIO; |
635 | } |
636 | |
637 | return 0; |
638 | } |
639 | |
640 | static int |
641 | auvitek_isoc_start(struct auvitek_softc *sc) |
642 | { |
643 | struct auvitek_xfer *ax = &sc->sc_ax; |
644 | int i, error; |
645 | |
646 | ax->ax_av.av_el = ax->ax_av.av_ol = 0; |
647 | ax->ax_av.av_eb = ax->ax_av.av_ob = 0; |
648 | ax->ax_av.av_stride = 720 * 2; |
649 | |
650 | for (i = 0; i < AUVITEK_NISOC_XFERS; i++) { |
651 | error = auvitek_isoc_start1(&ax->ax_i[i]); |
652 | if (error) |
653 | return error; |
654 | } |
655 | |
656 | return 0; |
657 | } |
658 | |
659 | static int |
660 | auvitek_isoc_start1(struct auvitek_isoc *isoc) |
661 | { |
662 | struct auvitek_xfer *ax = isoc->i_ax; |
663 | struct auvitek_softc *sc = ax->ax_sc; |
664 | usbd_status err; |
665 | unsigned int i; |
666 | |
667 | ax = isoc->i_ax; |
668 | |
669 | for (i = 0; i < ax->ax_nframes; i++) |
670 | isoc->i_frlengths[i] = ax->ax_uframe_len; |
671 | |
672 | usbd_setup_isoc_xfer(isoc->i_xfer, |
673 | isoc, |
674 | isoc->i_frlengths, |
675 | ax->ax_nframes, |
676 | USBD_SHORT_XFER_OK, |
677 | auvitek_isoc_intr); |
678 | |
679 | err = usbd_transfer(isoc->i_xfer); |
680 | if (err != USBD_IN_PROGRESS) { |
681 | aprint_error_dev(sc->sc_dev, "couldn't start isoc xfer: %s\n" , |
682 | usbd_errstr(err)); |
683 | return ENODEV; |
684 | } |
685 | |
686 | return 0; |
687 | } |
688 | |
689 | static void |
690 | auvitek_isoc_intr(struct usbd_xfer *xfer, void * priv, |
691 | usbd_status status) |
692 | { |
693 | struct auvitek_isoc *isoc = priv; |
694 | struct auvitek_xfer *ax = isoc->i_ax; |
695 | struct auvitek_softc *sc = ax->ax_sc; |
696 | uint32_t count; |
697 | uint8_t *buf; |
698 | unsigned int i; |
699 | |
700 | if (sc->sc_dying) |
701 | return; |
702 | |
703 | if (status != USBD_NORMAL_COMPLETION) { |
704 | if (status == USBD_STALLED) { |
705 | usbd_clear_endpoint_stall_async(ax->ax_pipe); |
706 | goto next; |
707 | } |
708 | return; |
709 | } |
710 | |
711 | usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); |
712 | |
713 | if (count == 0) |
714 | goto next; |
715 | |
716 | for (i = 0, buf = isoc->i_buf; |
717 | i < ax->ax_nframes; |
718 | ++i, buf += ax->ax_uframe_len) { |
719 | status = auvitek_isoc_process(sc, buf, isoc->i_frlengths[i]); |
720 | if (status == USBD_IOERROR) |
721 | break; |
722 | } |
723 | |
724 | next: |
725 | auvitek_isoc_start1(isoc); |
726 | } |
727 | |
728 | static int |
729 | auvitek_isoc_process(struct auvitek_softc *sc, uint8_t *buf, uint32_t len) |
730 | { |
731 | struct video_payload payload; |
732 | bool submit = false; |
733 | |
734 | if (buf[0] & 0x80) { |
735 | sc->sc_ax.ax_frinfo = buf[0]; |
736 | if (sc->sc_ax.ax_frinfo & 0x40) { |
737 | sc->sc_ax.ax_frno = !sc->sc_ax.ax_frno; |
738 | submit = true; |
739 | } |
740 | buf += 4; |
741 | len -= 4; |
742 | } |
743 | buf += 4; |
744 | len -= 4; |
745 | |
746 | auvitek_videobuf_weave(sc, buf, len); |
747 | |
748 | if (submit) { |
749 | payload.end_of_frame = 1; |
750 | payload.data = sc->sc_ax.ax_av.av_buf; |
751 | payload.size = sizeof(sc->sc_ax.ax_av.av_buf); |
752 | payload.frameno = -1; |
753 | |
754 | video_submit_payload(sc->sc_videodev, &payload); |
755 | |
756 | sc->sc_ax.ax_av.av_el = sc->sc_ax.ax_av.av_ol = 0; |
757 | sc->sc_ax.ax_av.av_eb = sc->sc_ax.ax_av.av_ob = 0; |
758 | } |
759 | |
760 | return USBD_NORMAL_COMPLETION; |
761 | } |
762 | |
763 | static void |
764 | auvitek_videobuf_weave(struct auvitek_softc *sc, uint8_t *buf, uint32_t len) |
765 | { |
766 | struct auvitek_videobuf *av = &sc->sc_ax.ax_av; |
767 | uint32_t resid, wlen; |
768 | uint32_t *l, *b; |
769 | uint8_t *vp; |
770 | |
771 | if (sc->sc_ax.ax_frinfo & 0x40) { |
772 | l = &av->av_ol; |
773 | b = &av->av_ob; |
774 | vp = av->av_buf; |
775 | } else { |
776 | l = &av->av_el; |
777 | b = &av->av_eb; |
778 | vp = av->av_buf + av->av_stride; |
779 | } |
780 | |
781 | resid = len; |
782 | while (resid > 0) { |
783 | if (*b == av->av_stride) { |
784 | *l = *l + 1; |
785 | *b = 0; |
786 | } |
787 | if (*l >= 240) { |
788 | break; |
789 | } |
790 | wlen = min(resid, av->av_stride - *b); |
791 | memcpy(vp + (av->av_stride * 2 * *l) + *b, buf, wlen); |
792 | *b += wlen; |
793 | buf += wlen; |
794 | resid -= wlen; |
795 | } |
796 | } |
797 | |