1 /* $NetBSD: pseye.c,v 1.29 2022/03/03 06:23:25 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2008 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 * Sony PlayStation Eye Driver
31 *
32 * The only documentation we have for this part is based on a series
33 * of forum postings by Jim Paris on ps2dev.org. Many thanks for
34 * figuring this one out.
35 *
36 * URL: http://forums.ps2dev.org/viewtopic.php?t=9238
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: pseye.c,v 1.29 2022/03/03 06:23:25 riastradh Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45 #include <sys/fcntl.h>
46 #include <sys/conf.h>
47 #include <sys/poll.h>
48 #include <sys/bus.h>
49 #include <sys/mutex.h>
50 #include <sys/kthread.h>
51 #include <sys/condvar.h>
52 #include <sys/module.h>
53
54 #include <dev/usb/usb.h>
55 #include <dev/usb/usbdi.h>
56 #include <dev/usb/usbdivar.h>
57 #include <dev/usb/usbdi_util.h>
58 #include <dev/usb/usbdevs.h>
59 #include <dev/usb/uvideoreg.h>
60
61 #include <dev/video_if.h>
62
63 #define PRI_PSEYE PRI_BIO
64
65 /* Bulk-in buffer length -- make room for payload + UVC headers */
66 #define PSEYE_BULKIN_BUFLEN ((640 * 480 * 2) + 4096)
67 #define PSEYE_BULKIN_BLKLEN 2048
68
69 /* SCCB/sensor interface */
70 #define PSEYE_SCCB_ADDRESS 0xf1
71 #define PSEYE_SCCB_SUBADDR 0xf2
72 #define PSEYE_SCCB_WRITE 0xf3
73 #define PSEYE_SCCB_READ 0xf4
74 #define PSEYE_SCCB_OPERATION 0xf5
75 #define PSEYE_SCCB_STATUS 0xf6
76
77 #define PSEYE_SCCB_OP_WRITE_3 0x37
78 #define PSEYE_SCCB_OP_WRITE_2 0x33
79 #define PSEYE_SCCB_OP_READ_2 0xf9
80
81 struct pseye_softc {
82 device_t sc_dev;
83
84 struct usbd_device * sc_udev;
85 struct usbd_interface * sc_iface;
86
87 device_t sc_videodev;
88 char sc_running;
89
90 kcondvar_t sc_cv;
91 kmutex_t sc_mtx;
92
93 struct usbd_pipe * sc_bulkin_pipe;
94 struct usbd_xfer * sc_bulkin_xfer;
95 int sc_bulkin;
96 uint8_t *sc_bulkin_buffer;
97 int sc_bulkin_bufferlen;
98
99 char sc_dying;
100
101 char sc_businfo[32];
102 };
103
104 static int pseye_match(device_t, cfdata_t, void *);
105 static void pseye_attach(device_t, device_t, void *);
106 static int pseye_detach(device_t, int);
107 static void pseye_childdet(device_t, device_t);
108 static int pseye_activate(device_t, enum devact);
109
110 static void pseye_init(struct pseye_softc *);
111 static void pseye_sccb_init(struct pseye_softc *);
112 static void pseye_stop(struct pseye_softc *);
113 static void pseye_start(struct pseye_softc *);
114 static void pseye_led(struct pseye_softc *, bool);
115 static uint8_t pseye_getreg(struct pseye_softc *, uint16_t);
116 static void pseye_setreg(struct pseye_softc *, uint16_t, uint8_t);
117 static void pseye_setregv(struct pseye_softc *, uint16_t, uint8_t);
118 static void pseye_sccb_setreg(struct pseye_softc *, uint8_t, uint8_t);
119 static bool pseye_sccb_status(struct pseye_softc *);
120
121 static int pseye_init_pipes(struct pseye_softc *);
122 static int pseye_close_pipes(struct pseye_softc *);
123
124 static usbd_status pseye_get_frame(struct pseye_softc *, uint32_t *);
125 static void pseye_submit_payload(struct pseye_softc *, uint32_t);
126
127 /* video(9) API */
128 static int pseye_open(void *, int);
129 static void pseye_close(void *);
130 static const char * pseye_get_devname(void *);
131 static const char * pseye_get_businfo(void *);
132 static int pseye_enum_format(void *, uint32_t,
133 struct video_format *);
134 static int pseye_get_format(void *, struct video_format *);
135 static int pseye_set_format(void *, struct video_format *);
136 static int pseye_try_format(void *, struct video_format *);
137 static int pseye_get_framerate(void *, struct video_fract *);
138 static int pseye_set_framerate(void *, struct video_fract *);
139 static int pseye_start_transfer(void *);
140 static int pseye_stop_transfer(void *);
141
142 CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc),
143 pseye_match, pseye_attach, pseye_detach, pseye_activate,
144 NULL, pseye_childdet);
145
146 static const struct video_hw_if pseye_hw_if = {
147 .open = pseye_open,
148 .close = pseye_close,
149 .get_devname = pseye_get_devname,
150 .get_businfo = pseye_get_businfo,
151 .enum_format = pseye_enum_format,
152 .get_format = pseye_get_format,
153 .set_format = pseye_set_format,
154 .try_format = pseye_try_format,
155 .get_framerate = pseye_get_framerate,
156 .set_framerate = pseye_set_framerate,
157 .start_transfer = pseye_start_transfer,
158 .stop_transfer = pseye_stop_transfer,
159 .control_iter_init = NULL,
160 .control_iter_next = NULL,
161 .get_control_desc_group = NULL,
162 .get_control_group = NULL,
163 .set_control_group = NULL,
164 };
165
166 static int
pseye_match(device_t parent,cfdata_t match,void * opaque)167 pseye_match(device_t parent, cfdata_t match, void *opaque)
168 {
169 struct usbif_attach_arg *uiaa = opaque;
170
171 if (uiaa->uiaa_class != UICLASS_VENDOR)
172 return UMATCH_NONE;
173
174 if (uiaa->uiaa_vendor == USB_VENDOR_OMNIVISION2) {
175 switch (uiaa->uiaa_product) {
176 case USB_PRODUCT_OMNIVISION2_PSEYE:
177 if (uiaa->uiaa_ifaceno != 0)
178 return UMATCH_NONE;
179 return UMATCH_VENDOR_PRODUCT;
180 }
181 }
182
183 return UMATCH_NONE;
184 }
185
186 static void
pseye_attach(device_t parent,device_t self,void * opaque)187 pseye_attach(device_t parent, device_t self, void *opaque)
188 {
189 struct pseye_softc *sc = device_private(self);
190 struct usbif_attach_arg *uiaa = opaque;
191 struct usbd_device *dev = uiaa->uiaa_device;
192 usb_interface_descriptor_t *id = NULL;
193 usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL;
194 char *devinfop;
195 int i;
196
197 aprint_naive("\n");
198 aprint_normal("\n");
199
200 devinfop = usbd_devinfo_alloc(dev, 0);
201 aprint_normal_dev(self, "%s\n", devinfop);
202 usbd_devinfo_free(devinfop);
203
204 sc->sc_dev = self;
205 sc->sc_udev = dev;
206 sc->sc_iface = uiaa->uiaa_iface;
207 snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x",
208 sc->sc_udev->ud_cookie.cookie);
209 sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN;
210
211 sc->sc_dying = sc->sc_running = 0;
212 cv_init(&sc->sc_cv, device_xname(self));
213 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE);
214
215 id = usbd_get_interface_descriptor(sc->sc_iface);
216 if (id == NULL) {
217 aprint_error_dev(self, "failed to get interface descriptor\n");
218 sc->sc_dying = 1;
219 return;
220 }
221
222 for (i = 0; i < id->bNumEndpoints; i++) {
223 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
224 if (ed == NULL) {
225 aprint_error_dev(self, "couldn't get ep %d\n", i);
226 sc->sc_dying = 1;
227 return;
228 }
229
230 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
231 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
232 ed_bulkin = ed;
233 break;
234 }
235 }
236
237 if (ed_bulkin == NULL) {
238 aprint_error_dev(self, "no bulk-in endpoint found\n");
239 sc->sc_dying = 1;
240 return;
241 }
242
243 sc->sc_bulkin = ed_bulkin->bEndpointAddress;
244
245 int error = pseye_init_pipes(sc);
246 if (error) {
247 aprint_error_dev(self, "couldn't open pipes\n");
248 return;
249 }
250
251 error = usbd_create_xfer(sc->sc_bulkin_pipe, sc->sc_bulkin_bufferlen,
252 0, 0, &sc->sc_bulkin_xfer);
253 if (error) {
254 aprint_error_dev(self, "couldn't create transfer\n");
255 pseye_close_pipes(sc);
256 return;
257 }
258
259 sc->sc_bulkin_buffer = usbd_get_buffer(sc->sc_bulkin_xfer);
260
261 pseye_init(sc);
262
263 if (!pmf_device_register(self, NULL, NULL))
264 aprint_error_dev(self, "couldn't establish power handler\n");
265
266 sc->sc_videodev = video_attach_mi(&pseye_hw_if, self, sc);
267 if (sc->sc_videodev == NULL) {
268 aprint_error_dev(self, "couldn't attach video layer\n");
269 sc->sc_dying = 1;
270 return;
271 }
272
273 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, self);
274
275 }
276
277 static int
pseye_detach(device_t self,int flags)278 pseye_detach(device_t self, int flags)
279 {
280 struct pseye_softc *sc = device_private(self);
281
282 sc->sc_dying = 1;
283
284 pmf_device_deregister(self);
285
286 if (sc->sc_videodev != NULL) {
287 config_detach(sc->sc_videodev, flags);
288 sc->sc_videodev = NULL;
289 }
290
291 if (sc->sc_bulkin_pipe != NULL) {
292 usbd_abort_pipe(sc->sc_bulkin_pipe);
293 }
294
295 if (sc->sc_bulkin_xfer != NULL) {
296 usbd_destroy_xfer(sc->sc_bulkin_xfer);
297 sc->sc_bulkin_xfer = NULL;
298 }
299
300 if (sc->sc_bulkin_pipe != NULL) {
301 usbd_close_pipe(sc->sc_bulkin_pipe);
302 sc->sc_bulkin_pipe = NULL;
303 }
304
305 mutex_enter(&sc->sc_mtx);
306 if (sc->sc_running) {
307 sc->sc_running = 0;
308 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx);
309 }
310 mutex_exit(&sc->sc_mtx);
311
312 cv_destroy(&sc->sc_cv);
313 mutex_destroy(&sc->sc_mtx);
314
315 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
316
317 return 0;
318 }
319
320 int
pseye_activate(device_t self,enum devact act)321 pseye_activate(device_t self, enum devact act)
322 {
323 struct pseye_softc *sc = device_private(self);
324
325 switch (act) {
326 case DVACT_DEACTIVATE:
327 sc->sc_dying = 1;
328 return 0;
329 default:
330 return EOPNOTSUPP;
331 }
332 }
333
334 static void
pseye_childdet(device_t self,device_t child)335 pseye_childdet(device_t self, device_t child)
336 {
337 struct pseye_softc *sc = device_private(self);
338
339 if (sc->sc_videodev) {
340 KASSERT(sc->sc_videodev == child);
341 sc->sc_videodev = NULL;
342 }
343 }
344
345 /*
346 * Device access
347 */
348
349 static void
pseye_init(struct pseye_softc * sc)350 pseye_init(struct pseye_softc *sc)
351 {
352 pseye_sccb_init(sc);
353
354 pseye_setregv(sc, 0xc2, 0x0c);
355 pseye_setregv(sc, 0x88, 0xf8);
356 pseye_setregv(sc, 0xc3, 0x69);
357 pseye_setregv(sc, 0x89, 0xff);
358 pseye_setregv(sc, 0x76, 0x03);
359 pseye_setregv(sc, 0x92, 0x01);
360 pseye_setregv(sc, 0x93, 0x18);
361 pseye_setregv(sc, 0x94, 0x10);
362 pseye_setregv(sc, 0x95, 0x10);
363 pseye_setregv(sc, 0xe2, 0x00);
364 pseye_setregv(sc, 0xe7, 0x3e);
365
366 pseye_setregv(sc, 0x96, 0x00);
367
368 pseye_setreg(sc, 0x97, 0x20);
369 pseye_setreg(sc, 0x97, 0x20);
370 pseye_setreg(sc, 0x97, 0x20);
371 pseye_setreg(sc, 0x97, 0x0a);
372 pseye_setreg(sc, 0x97, 0x3f);
373 pseye_setreg(sc, 0x97, 0x4a);
374 pseye_setreg(sc, 0x97, 0x20);
375 pseye_setreg(sc, 0x97, 0x15);
376 pseye_setreg(sc, 0x97, 0x0b);
377
378 pseye_setregv(sc, 0x8e, 0x40);
379 pseye_setregv(sc, 0x1f, 0x81);
380 pseye_setregv(sc, 0x34, 0x05);
381 pseye_setregv(sc, 0xe3, 0x04);
382 pseye_setregv(sc, 0x88, 0x00);
383 pseye_setregv(sc, 0x89, 0x00);
384 pseye_setregv(sc, 0x76, 0x00);
385 pseye_setregv(sc, 0xe7, 0x2e);
386 pseye_setregv(sc, 0x31, 0xf9);
387 pseye_setregv(sc, 0x25, 0x42);
388 pseye_setregv(sc, 0x21, 0xf0);
389
390 pseye_setreg(sc, 0x1c, 0x00);
391 pseye_setreg(sc, 0x1d, 0x40);
392 pseye_setreg(sc, 0x1d, 0x02); /* payload size 0x0200 * 4 == 2048 */
393 pseye_setreg(sc, 0x1d, 0x00);
394 pseye_setreg(sc, 0x1d, 0x02); /* frame size 0x025800 * 4 == 614400 */
395 pseye_setreg(sc, 0x1d, 0x58);
396 pseye_setreg(sc, 0x1d, 0x00);
397
398 pseye_setreg(sc, 0x1c, 0x0a);
399 pseye_setreg(sc, 0x1d, 0x08); /* enable UVC header */
400 pseye_setreg(sc, 0x1d, 0x0e);
401
402 pseye_setregv(sc, 0x8d, 0x1c);
403 pseye_setregv(sc, 0x8e, 0x80);
404 pseye_setregv(sc, 0xe5, 0x04);
405
406 pseye_sccb_setreg(sc, 0x12, 0x80);
407 pseye_sccb_setreg(sc, 0x11, 0x01);
408 pseye_sccb_setreg(sc, 0x11, 0x01);
409 pseye_sccb_setreg(sc, 0x11, 0x01);
410 pseye_sccb_setreg(sc, 0x11, 0x01);
411 pseye_sccb_setreg(sc, 0x11, 0x01);
412 pseye_sccb_setreg(sc, 0x11, 0x01);
413 pseye_sccb_setreg(sc, 0x11, 0x01);
414 pseye_sccb_setreg(sc, 0x11, 0x01);
415 pseye_sccb_setreg(sc, 0x11, 0x01);
416 pseye_sccb_setreg(sc, 0x11, 0x01);
417 pseye_sccb_setreg(sc, 0x11, 0x01);
418
419 pseye_sccb_setreg(sc, 0x3d, 0x03);
420 pseye_sccb_setreg(sc, 0x17, 0x26);
421 pseye_sccb_setreg(sc, 0x18, 0xa0);
422 pseye_sccb_setreg(sc, 0x19, 0x07);
423 pseye_sccb_setreg(sc, 0x1a, 0xf0);
424 pseye_sccb_setreg(sc, 0x32, 0x00);
425 pseye_sccb_setreg(sc, 0x29, 0xa0);
426 pseye_sccb_setreg(sc, 0x2c, 0xf0);
427 pseye_sccb_setreg(sc, 0x65, 0x20);
428 pseye_sccb_setreg(sc, 0x11, 0x01);
429 pseye_sccb_setreg(sc, 0x42, 0x7f);
430 pseye_sccb_setreg(sc, 0x63, 0xe0);
431 pseye_sccb_setreg(sc, 0x64, 0xff);
432 pseye_sccb_setreg(sc, 0x66, 0x00);
433 pseye_sccb_setreg(sc, 0x13, 0xf0);
434 pseye_sccb_setreg(sc, 0x0d, 0x41);
435 pseye_sccb_setreg(sc, 0x0f, 0xc5);
436 pseye_sccb_setreg(sc, 0x14, 0x11);
437
438 pseye_sccb_setreg(sc, 0x22, 0x7f);
439 pseye_sccb_setreg(sc, 0x23, 0x03);
440 pseye_sccb_setreg(sc, 0x24, 0x40);
441 pseye_sccb_setreg(sc, 0x25, 0x30);
442 pseye_sccb_setreg(sc, 0x26, 0xa1);
443 pseye_sccb_setreg(sc, 0x2a, 0x00);
444 pseye_sccb_setreg(sc, 0x2b, 0x00);
445 pseye_sccb_setreg(sc, 0x6b, 0xaa);
446 pseye_sccb_setreg(sc, 0x13, 0xff);
447
448 pseye_sccb_setreg(sc, 0x90, 0x05);
449 pseye_sccb_setreg(sc, 0x91, 0x01);
450 pseye_sccb_setreg(sc, 0x92, 0x03);
451 pseye_sccb_setreg(sc, 0x93, 0x00);
452 pseye_sccb_setreg(sc, 0x94, 0x60);
453 pseye_sccb_setreg(sc, 0x95, 0x3c);
454 pseye_sccb_setreg(sc, 0x96, 0x24);
455 pseye_sccb_setreg(sc, 0x97, 0x1e);
456 pseye_sccb_setreg(sc, 0x98, 0x62);
457 pseye_sccb_setreg(sc, 0x99, 0x80);
458 pseye_sccb_setreg(sc, 0x9a, 0x1e);
459 pseye_sccb_setreg(sc, 0x9b, 0x08);
460 pseye_sccb_setreg(sc, 0x9c, 0x20);
461 pseye_sccb_setreg(sc, 0x9e, 0x81);
462
463 pseye_sccb_setreg(sc, 0xa6, 0x04);
464 pseye_sccb_setreg(sc, 0x7e, 0x0c);
465 pseye_sccb_setreg(sc, 0x7f, 0x16);
466
467 pseye_sccb_setreg(sc, 0x80, 0x2a);
468 pseye_sccb_setreg(sc, 0x81, 0x4e);
469 pseye_sccb_setreg(sc, 0x82, 0x61);
470 pseye_sccb_setreg(sc, 0x83, 0x6f);
471 pseye_sccb_setreg(sc, 0x84, 0x7b);
472 pseye_sccb_setreg(sc, 0x85, 0x86);
473 pseye_sccb_setreg(sc, 0x86, 0x8e);
474 pseye_sccb_setreg(sc, 0x87, 0x97);
475 pseye_sccb_setreg(sc, 0x88, 0xa4);
476 pseye_sccb_setreg(sc, 0x89, 0xaf);
477 pseye_sccb_setreg(sc, 0x8a, 0xc5);
478 pseye_sccb_setreg(sc, 0x8b, 0xd7);
479 pseye_sccb_setreg(sc, 0x8c, 0xe8);
480 pseye_sccb_setreg(sc, 0x8d, 0x20);
481
482 pseye_sccb_setreg(sc, 0x0c, 0x90);
483
484 pseye_setregv(sc, 0xc0, 0x50);
485 pseye_setregv(sc, 0xc1, 0x3c);
486 pseye_setregv(sc, 0xc2, 0x0c);
487
488 pseye_sccb_setreg(sc, 0x2b, 0x00);
489 pseye_sccb_setreg(sc, 0x22, 0x7f);
490 pseye_sccb_setreg(sc, 0x23, 0x03);
491 pseye_sccb_setreg(sc, 0x11, 0x01);
492 pseye_sccb_setreg(sc, 0x0c, 0xd0);
493 pseye_sccb_setreg(sc, 0x64, 0xff);
494 pseye_sccb_setreg(sc, 0x0d, 0x41);
495
496 pseye_sccb_setreg(sc, 0x14, 0x41);
497 pseye_sccb_setreg(sc, 0x0e, 0xcd);
498 pseye_sccb_setreg(sc, 0xac, 0xbf);
499 pseye_sccb_setreg(sc, 0x8e, 0x00);
500 pseye_sccb_setreg(sc, 0x0c, 0xd0);
501
502 pseye_stop(sc);
503 }
504
505 static void
pseye_sccb_init(struct pseye_softc * sc)506 pseye_sccb_init(struct pseye_softc *sc)
507 {
508 pseye_setregv(sc, 0xe7, 0x3a);
509 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
510 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
511 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
512 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42);
513 }
514
515 static void
pseye_stop(struct pseye_softc * sc)516 pseye_stop(struct pseye_softc *sc)
517 {
518 pseye_led(sc, false);
519 pseye_setreg(sc, 0xe0, 0x09);
520 }
521
522 static void
pseye_start(struct pseye_softc * sc)523 pseye_start(struct pseye_softc *sc)
524 {
525 pseye_led(sc, true);
526 pseye_setreg(sc, 0xe0, 0x00);
527 }
528
529 static void
pseye_led(struct pseye_softc * sc,bool enabled)530 pseye_led(struct pseye_softc *sc, bool enabled)
531 {
532 uint8_t val;
533
534 val = pseye_getreg(sc, 0x21);
535 pseye_setreg(sc, 0x21, val | 0x80);
536
537 val = pseye_getreg(sc, 0x23);
538 if (enabled == true)
539 val |= 0x80;
540 else
541 val &= ~0x80;
542 pseye_setreg(sc, 0x23, val);
543 }
544
545 static uint8_t
pseye_getreg(struct pseye_softc * sc,uint16_t reg)546 pseye_getreg(struct pseye_softc *sc, uint16_t reg)
547 {
548 usb_device_request_t req;
549 usbd_status err;
550 uint8_t buf;
551
552 req.bmRequestType = UT_READ_VENDOR_DEVICE;
553 req.bRequest = 1;
554 USETW(req.wValue, 0x0000);
555 USETW(req.wIndex, reg);
556 USETW(req.wLength, 1);
557
558 err = usbd_do_request(sc->sc_udev, &req, &buf);
559 if (err) {
560 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n",
561 reg, usbd_errstr(err));
562 return 0xff;
563 }
564
565 return buf;
566 }
567
568 static void
pseye_setreg(struct pseye_softc * sc,uint16_t reg,uint8_t val)569 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val)
570 {
571 usb_device_request_t req;
572 usbd_status err;
573
574 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
575 req.bRequest = 1;
576 USETW(req.wValue, 0x0000);
577 USETW(req.wIndex, reg);
578 USETW(req.wLength, 1);
579
580 err = usbd_do_request(sc->sc_udev, &req, &val);
581 if (err)
582 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n",
583 reg, usbd_errstr(err));
584 }
585
586 static void
pseye_setregv(struct pseye_softc * sc,uint16_t reg,uint8_t val)587 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val)
588 {
589 pseye_setreg(sc, reg, val);
590 if (pseye_getreg(sc, reg) != val)
591 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n",
592 reg);
593 }
594
595 static void
pseye_sccb_setreg(struct pseye_softc * sc,uint8_t reg,uint8_t val)596 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val)
597 {
598 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg);
599 pseye_setreg(sc, PSEYE_SCCB_WRITE, val);
600 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3);
601
602 if (pseye_sccb_status(sc) == false)
603 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n",
604 reg);
605 }
606
607 static bool
pseye_sccb_status(struct pseye_softc * sc)608 pseye_sccb_status(struct pseye_softc *sc)
609 {
610 int retry = 5;
611 uint8_t reg;
612
613 while (retry-- >= 0) {
614 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS);
615 if (reg == 0x00)
616 return true;
617 else if (reg == 0x04)
618 return false;
619 }
620
621 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n");
622 return false;
623 }
624
625 static usbd_status
pseye_get_frame(struct pseye_softc * sc,uint32_t * plen)626 pseye_get_frame(struct pseye_softc *sc, uint32_t *plen)
627 {
628 if (sc->sc_dying)
629 return USBD_IOERROR;
630
631 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe,
632 USBD_SHORT_XFER_OK, 1000, sc->sc_bulkin_buffer, plen);
633 }
634
635 static int
pseye_init_pipes(struct pseye_softc * sc)636 pseye_init_pipes(struct pseye_softc *sc)
637 {
638 usbd_status err;
639
640 if (sc->sc_dying)
641 return EIO;
642
643 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0,
644 &sc->sc_bulkin_pipe);
645 if (err) {
646 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n",
647 usbd_errstr(err));
648 return ENOMEM;
649 }
650
651 return 0;
652 }
653
654 int
pseye_close_pipes(struct pseye_softc * sc)655 pseye_close_pipes(struct pseye_softc *sc)
656 {
657 if (sc->sc_bulkin_pipe != NULL) {
658 usbd_abort_pipe(sc->sc_bulkin_pipe);
659 usbd_close_pipe(sc->sc_bulkin_pipe);
660 sc->sc_bulkin_pipe = NULL;
661 }
662
663 return 0;
664 }
665
666 static void
pseye_submit_payload(struct pseye_softc * sc,uint32_t tlen)667 pseye_submit_payload(struct pseye_softc *sc, uint32_t tlen)
668 {
669 struct video_payload payload;
670 uvideo_payload_header_t *uvchdr;
671 uint8_t *buf = sc->sc_bulkin_buffer;
672 uint32_t len;
673 uint32_t brem = (640*480*2);
674
675 while (brem > 0 && tlen > 0) {
676 len = uimin(tlen, PSEYE_BULKIN_BLKLEN);
677 if (len < UVIDEO_PAYLOAD_HEADER_SIZE) {
678 printf("pseye_submit_payload: len=%u\n", len);
679 return;
680 }
681
682 uvchdr = (uvideo_payload_header_t *)buf;
683 if (uvchdr->bHeaderLength != UVIDEO_PAYLOAD_HEADER_SIZE)
684 goto next;
685 if (uvchdr->bHeaderLength == len &&
686 !(uvchdr->bmHeaderInfo & UV_END_OF_FRAME))
687 goto next;
688 if (uvchdr->bmHeaderInfo & UV_ERROR)
689 return;
690 if ((uvchdr->bmHeaderInfo & UV_PRES_TIME) == 0)
691 goto next;
692
693 payload.data = buf + uvchdr->bHeaderLength;
694 payload.size = uimin(brem, len - uvchdr->bHeaderLength);
695 payload.frameno = UGETDW(&buf[2]);
696 payload.end_of_frame = uvchdr->bmHeaderInfo & UV_END_OF_FRAME;
697 video_submit_payload(sc->sc_videodev, &payload);
698
699 next:
700 tlen -= len;
701 buf += len;
702 brem -= payload.size;
703 }
704 }
705
706 static void
pseye_transfer_thread(void * opaque)707 pseye_transfer_thread(void *opaque)
708 {
709 struct pseye_softc *sc = opaque;
710 uint32_t len;
711 int error;
712
713 while (sc->sc_running) {
714 len = sc->sc_bulkin_bufferlen;
715 error = pseye_get_frame(sc, &len);
716 if (error == USBD_NORMAL_COMPLETION)
717 pseye_submit_payload(sc, len);
718 }
719
720 mutex_enter(&sc->sc_mtx);
721 cv_broadcast(&sc->sc_cv);
722 mutex_exit(&sc->sc_mtx);
723
724 kthread_exit(0);
725 }
726
727 /* video(9) API implementations */
728 static int
pseye_open(void * opaque,int flags)729 pseye_open(void *opaque, int flags)
730 {
731 struct pseye_softc *sc = opaque;
732
733 if (sc->sc_dying)
734 return EIO;
735
736 pseye_start(sc);
737
738 return 0;
739 }
740
741 static void
pseye_close(void * opaque)742 pseye_close(void *opaque)
743 {
744 struct pseye_softc *sc = opaque;
745
746 pseye_stop(sc);
747 }
748
749 static const char *
pseye_get_devname(void * opaque)750 pseye_get_devname(void *opaque)
751 {
752 return "PlayStation Eye";
753 }
754
755 static const char *
pseye_get_businfo(void * opaque)756 pseye_get_businfo(void *opaque)
757 {
758 struct pseye_softc *sc = opaque;
759
760 return sc->sc_businfo;
761 }
762
763 static int
pseye_enum_format(void * opaque,uint32_t index,struct video_format * format)764 pseye_enum_format(void *opaque, uint32_t index, struct video_format *format)
765 {
766 if (index != 0)
767 return EINVAL;
768 return pseye_get_format(opaque, format);
769 }
770
771 static int
pseye_get_format(void * opaque,struct video_format * format)772 pseye_get_format(void *opaque, struct video_format *format)
773 {
774 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */
775 format->width = 640;
776 format->height = 480;
777 format->aspect_x = 4;
778 format->aspect_y = 3;
779 format->sample_size = format->width * format->height * 2;
780 format->stride = format->width * 2;
781 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED;
782 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED;
783 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED;
784 format->interlace_flags = VIDEO_INTERLACE_ON;
785 format->priv = 0;
786
787 return 0;
788 }
789
790 static int
pseye_set_format(void * opaque,struct video_format * format)791 pseye_set_format(void *opaque, struct video_format *format)
792 {
793 #if notyet
794 if (format->pixel_format != VIDEO_FORMAT_YUYV)
795 return EINVAL;
796 if (format->width != 640 || format->height != 480)
797 return EINVAL;
798 #endif
799 /* XXX */
800 return pseye_get_format(opaque, format);
801 }
802
803 static int
pseye_try_format(void * opaque,struct video_format * format)804 pseye_try_format(void *opaque, struct video_format *format)
805 {
806 return pseye_get_format(opaque, format);
807 }
808
809 static int
pseye_get_framerate(void * opaque,struct video_fract * fract)810 pseye_get_framerate(void *opaque, struct video_fract *fract)
811 {
812 /* Driver only supports 60fps */
813 fract->numerator = 1;
814 fract->denominator = 60;
815
816 return 0;
817 }
818
819 static int
pseye_set_framerate(void * opaque,struct video_fract * fract)820 pseye_set_framerate(void *opaque, struct video_fract *fract)
821 {
822 /* Driver only supports one framerate. Return actual rate. */
823 return pseye_get_framerate(opaque, fract);
824 }
825
826 static int
pseye_start_transfer(void * opaque)827 pseye_start_transfer(void *opaque)
828 {
829 struct pseye_softc *sc = opaque;
830 int err = 0;
831
832 mutex_enter(&sc->sc_mtx);
833 if (sc->sc_running == 0) {
834 sc->sc_running = 1;
835 err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread,
836 opaque, NULL, "%s", device_xname(sc->sc_dev));
837 } else
838 aprint_error_dev(sc->sc_dev, "transfer already in progress\n");
839 mutex_exit(&sc->sc_mtx);
840
841 return err;
842 }
843
844 static int
pseye_stop_transfer(void * opaque)845 pseye_stop_transfer(void *opaque)
846 {
847 struct pseye_softc *sc = opaque;
848
849 mutex_enter(&sc->sc_mtx);
850 if (sc->sc_running) {
851 sc->sc_running = 0;
852 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx);
853 }
854 mutex_exit(&sc->sc_mtx);
855
856 return 0;
857 }
858
859 MODULE(MODULE_CLASS_DRIVER, pseye, NULL);
860
861 #ifdef _MODULE
862 #include "ioconf.c"
863 #endif
864
865 static int
pseye_modcmd(modcmd_t cmd,void * opaque)866 pseye_modcmd(modcmd_t cmd, void *opaque)
867 {
868 switch (cmd) {
869 case MODULE_CMD_INIT:
870 #ifdef _MODULE
871 return config_init_component(cfdriver_ioconf_pseye,
872 cfattach_ioconf_pseye, cfdata_ioconf_pseye);
873 #else
874 return 0;
875 #endif
876 case MODULE_CMD_FINI:
877 #ifdef _MODULE
878 return config_fini_component(cfdriver_ioconf_pseye,
879 cfattach_ioconf_pseye, cfdata_ioconf_pseye);
880 #else
881 return 0;
882 #endif
883 default:
884 return ENOTTY;
885 }
886 }
887