pseye.c revision 1.1
1 /* $NetBSD: pseye.c,v 1.1 2008/09/06 19:37:21 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 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 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: pseye.c,v 1.1 2008/09/06 19:37:21 jmcneill Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/device.h> 35 #include <sys/malloc.h> 36 #include <sys/fcntl.h> 37 #include <sys/conf.h> 38 #include <sys/poll.h> 39 #include <sys/bus.h> 40 #include <sys/mutex.h> 41 #include <sys/kthread.h> 42 #include <sys/condvar.h> 43 #include <sys/videoio.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 #include <dev/usb/usbdi_util.h> 50 #include <dev/usb/usbdevs.h> 51 52 #include <dev/video_if.h> 53 54 /* Bulk-in buffer length */ 55 #define PSEYE_BULKIN_BUFLEN (640 * 480 * 2) 56 57 /* SCCB/sensor interface */ 58 #define PSEYE_SCCB_ADDRESS 0xf1 59 #define PSEYE_SCCB_SUBADDR 0xf2 60 #define PSEYE_SCCB_WRITE 0xf3 61 #define PSEYE_SCCB_READ 0xf4 62 #define PSEYE_SCCB_OPERATION 0xf5 63 #define PSEYE_SCCB_STATUS 0xf6 64 65 #define PSEYE_SCCB_OP_WRITE_3 0x37 66 #define PSEYE_SCCB_OP_WRITE_2 0x33 67 #define PSEYE_SCCB_OP_READ_2 0xf9 68 69 struct pseye_softc { 70 USBBASEDEVICE sc_dev; 71 72 usbd_device_handle sc_udev; 73 usbd_interface_handle sc_iface; 74 75 device_t sc_videodev; 76 char sc_running; 77 78 kcondvar_t sc_cv; 79 kmutex_t sc_mtx; 80 81 usbd_pipe_handle sc_bulkin_pipe; 82 usbd_xfer_handle sc_bulkin_xfer; 83 int sc_bulkin; 84 uint8_t *sc_bulkin_buffer; 85 int sc_bulkin_bufferlen; 86 87 char sc_dying; 88 }; 89 90 static int pseye_match(device_t, cfdata_t, void *); 91 static void pseye_attach(device_t, device_t, void *); 92 static int pseye_detach(device_t, int); 93 static void pseye_childdet(device_t, device_t); 94 static int pseye_activate(device_t, enum devact); 95 96 static void pseye_init(struct pseye_softc *); 97 static void pseye_sccb_init(struct pseye_softc *); 98 static void pseye_stop(struct pseye_softc *); 99 static void pseye_start(struct pseye_softc *); 100 static void pseye_led(struct pseye_softc *, bool); 101 static uint8_t pseye_getreg(struct pseye_softc *, uint16_t); 102 static void pseye_setreg(struct pseye_softc *, uint16_t, uint8_t); 103 static void pseye_setregv(struct pseye_softc *, uint16_t, uint8_t); 104 static void pseye_sccb_setreg(struct pseye_softc *, uint8_t, uint8_t); 105 static bool pseye_sccb_status(struct pseye_softc *); 106 107 static int pseye_init_pipes(struct pseye_softc *); 108 static int pseye_close_pipes(struct pseye_softc *); 109 110 static usbd_status pseye_get_frame(struct pseye_softc *); 111 112 /* video(9) API */ 113 static int pseye_open(void *, int); 114 static void pseye_close(void *); 115 static const char * pseye_get_devname(void *); 116 static int pseye_get_format(void *, struct video_format *); 117 static int pseye_set_format(void *, struct video_format *); 118 static int pseye_start_transfer(void *); 119 static int pseye_stop_transfer(void *); 120 121 CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc), 122 pseye_match, pseye_attach, pseye_detach, pseye_activate, 123 NULL, pseye_childdet); 124 125 static const struct video_hw_if pseye_hw_if = { 126 .open = pseye_open, 127 .close = pseye_close, 128 .get_devname = pseye_get_devname, 129 .get_format = pseye_get_format, 130 .set_format = pseye_set_format, 131 .try_format = NULL, 132 .start_transfer = pseye_start_transfer, 133 .stop_transfer = pseye_stop_transfer, 134 .control_iter_init = NULL, 135 .control_iter_next = NULL, 136 .get_control_desc_group = NULL, 137 .get_control_group = NULL, 138 .set_control_group = NULL, 139 }; 140 141 USB_MATCH(pseye) 142 { 143 USB_IFMATCH_START(pseye, uaa); 144 145 if (uaa->class != UICLASS_VENDOR) 146 return UMATCH_NONE; 147 148 if (uaa->vendor == USB_VENDOR_OMNIVISION2) { 149 switch (uaa->product) { 150 case USB_PRODUCT_OMNIVISION2_PSEYE: 151 if (uaa->ifaceno != 0) 152 return UMATCH_NONE; 153 return UMATCH_VENDOR_PRODUCT; 154 } 155 } 156 157 return UMATCH_NONE; 158 } 159 160 USB_ATTACH(pseye) 161 { 162 USB_IFATTACH_START(pseye, sc, uaa); 163 usbd_device_handle dev = uaa->device; 164 usb_interface_descriptor_t *id = NULL; 165 usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL; 166 char *devinfo; 167 int i; 168 169 USB_ATTACH_SETUP; 170 devinfo = usbd_devinfo_alloc(dev, 0); 171 aprint_normal_dev(self, "%s\n", devinfo); 172 usbd_devinfo_free(devinfo); 173 174 sc->sc_dev = self; 175 sc->sc_udev = dev; 176 sc->sc_iface = uaa->iface; 177 sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN; 178 179 sc->sc_dying = sc->sc_running = 0; 180 cv_init(&sc->sc_cv, device_xname(sc->sc_dev)); 181 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 182 183 id = usbd_get_interface_descriptor(sc->sc_iface); 184 if (id == NULL) { 185 aprint_error_dev(self, "failed to get interface descriptor\n"); 186 sc->sc_dying = 1; 187 USB_ATTACH_ERROR_RETURN; 188 } 189 190 for (i = 0; i < id->bNumEndpoints; i++) { 191 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 192 if (ed == NULL) { 193 aprint_error_dev(sc->sc_dev, "couldn't get ep %d\n", i); 194 sc->sc_dying = 1; 195 USB_ATTACH_ERROR_RETURN; 196 } 197 198 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 199 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 200 ed_bulkin = ed; 201 break; 202 } 203 } 204 205 if (ed_bulkin == NULL) { 206 aprint_error_dev(sc->sc_dev, "no bulk-in endpoint found\n"); 207 sc->sc_dying = 1; 208 USB_ATTACH_ERROR_RETURN; 209 } 210 211 sc->sc_bulkin = ed_bulkin->bEndpointAddress; 212 213 sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev); 214 if (sc->sc_bulkin_xfer == NULL) { 215 sc->sc_dying = 1; 216 USB_ATTACH_ERROR_RETURN; 217 } 218 sc->sc_bulkin_buffer = usbd_alloc_buffer(sc->sc_bulkin_xfer, 219 sc->sc_bulkin_bufferlen); 220 if (sc->sc_bulkin_buffer == NULL) { 221 usbd_free_xfer(sc->sc_bulkin_xfer); 222 sc->sc_bulkin_xfer = NULL; 223 sc->sc_dying = 1; 224 USB_ATTACH_ERROR_RETURN; 225 } 226 227 pseye_init(sc); 228 229 sc->sc_videodev = video_attach_mi(&pseye_hw_if, sc->sc_dev); 230 if (sc->sc_videodev == NULL) { 231 aprint_error_dev(sc->sc_dev, "couldn't attach video layer\n"); 232 sc->sc_dying = 1; 233 USB_ATTACH_ERROR_RETURN; 234 } 235 236 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 237 USBDEV(sc->sc_dev)); 238 239 USB_ATTACH_SUCCESS_RETURN; 240 } 241 242 USB_DETACH(pseye) 243 { 244 USB_DETACH_START(pseye, sc); 245 246 sc->sc_dying = 1; 247 248 if (sc->sc_videodev != NULL) { 249 config_detach(sc->sc_videodev, flags); 250 sc->sc_videodev = NULL; 251 } 252 253 if (sc->sc_bulkin_xfer != NULL) { 254 usbd_free_xfer(sc->sc_bulkin_xfer); 255 sc->sc_bulkin_xfer = NULL; 256 } 257 258 if (sc->sc_bulkin_pipe != NULL) { 259 usbd_abort_pipe(sc->sc_bulkin_pipe); 260 sc->sc_bulkin_pipe = NULL; 261 } 262 263 mutex_enter(&sc->sc_mtx); 264 if (sc->sc_running) { 265 sc->sc_running = 0; 266 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 267 } 268 mutex_exit(&sc->sc_mtx); 269 270 cv_destroy(&sc->sc_cv); 271 mutex_destroy(&sc->sc_mtx); 272 273 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 274 USBDEV(sc->sc_dev)); 275 276 return 0; 277 } 278 279 int 280 pseye_activate(device_ptr_t self, enum devact act) 281 { 282 struct pseye_softc *sc = device_private(self); 283 int rv; 284 285 rv = 0; 286 287 switch (act) { 288 case DVACT_ACTIVATE: 289 break; 290 case DVACT_DEACTIVATE: 291 sc->sc_dying = 1; 292 break; 293 } 294 295 return rv; 296 } 297 298 static void 299 pseye_childdet(device_t self, device_t child) 300 { 301 struct pseye_softc *sc = device_private(self); 302 303 if (sc->sc_videodev) { 304 KASSERT(sc->sc_videodev == child); 305 sc->sc_videodev = NULL; 306 } 307 } 308 309 /* 310 * Device access 311 */ 312 313 static void 314 pseye_init(struct pseye_softc *sc) 315 { 316 pseye_sccb_init(sc); 317 318 pseye_setregv(sc, 0xc2, 0x0c); 319 pseye_setregv(sc, 0x88, 0xf8); 320 pseye_setregv(sc, 0xc3, 0x69); 321 pseye_setregv(sc, 0x89, 0xff); 322 pseye_setregv(sc, 0x76, 0x03); 323 pseye_setregv(sc, 0x92, 0x01); 324 pseye_setregv(sc, 0x93, 0x18); 325 pseye_setregv(sc, 0x94, 0x10); 326 pseye_setregv(sc, 0x95, 0x10); 327 pseye_setregv(sc, 0xe2, 0x00); 328 pseye_setregv(sc, 0xe7, 0x3e); 329 330 pseye_setreg(sc, 0x1c, 0x0a); 331 pseye_setreg(sc, 0x1d, 0x22); 332 pseye_setreg(sc, 0x1d, 0x06); 333 pseye_setregv(sc, 0x96, 0x00); 334 335 pseye_setreg(sc, 0x97, 0x20); 336 pseye_setreg(sc, 0x97, 0x20); 337 pseye_setreg(sc, 0x97, 0x20); 338 pseye_setreg(sc, 0x97, 0x0a); 339 pseye_setreg(sc, 0x97, 0x3f); 340 pseye_setreg(sc, 0x97, 0x4a); 341 pseye_setreg(sc, 0x97, 0x20); 342 pseye_setreg(sc, 0x97, 0x15); 343 pseye_setreg(sc, 0x97, 0x0b); 344 345 pseye_setregv(sc, 0x8e, 0x40); 346 pseye_setregv(sc, 0x1f, 0x81); 347 pseye_setregv(sc, 0x34, 0x05); 348 pseye_setregv(sc, 0xe3, 0x04); 349 pseye_setregv(sc, 0x88, 0x00); 350 pseye_setregv(sc, 0x89, 0x00); 351 pseye_setregv(sc, 0x76, 0x00); 352 pseye_setregv(sc, 0xe7, 0x2e); 353 pseye_setregv(sc, 0x31, 0xf9); 354 pseye_setregv(sc, 0x25, 0x42); 355 pseye_setregv(sc, 0x21, 0xf0); 356 357 pseye_setreg(sc, 0x1c, 0x00); 358 pseye_setreg(sc, 0x1d, 0x40); 359 pseye_setreg(sc, 0x1d, 0x02); 360 pseye_setreg(sc, 0x1d, 0x00); 361 pseye_setreg(sc, 0x1d, 0x02); 362 pseye_setreg(sc, 0x1d, 0x57); 363 pseye_setreg(sc, 0x1d, 0xff); 364 365 pseye_setregv(sc, 0x8d, 0x1c); 366 pseye_setregv(sc, 0x8e, 0x80); 367 pseye_setregv(sc, 0xe5, 0x04); 368 369 pseye_sccb_setreg(sc, 0x12, 0x80); 370 pseye_sccb_setreg(sc, 0x11, 0x01); 371 pseye_sccb_setreg(sc, 0x11, 0x01); 372 pseye_sccb_setreg(sc, 0x11, 0x01); 373 pseye_sccb_setreg(sc, 0x11, 0x01); 374 pseye_sccb_setreg(sc, 0x11, 0x01); 375 pseye_sccb_setreg(sc, 0x11, 0x01); 376 pseye_sccb_setreg(sc, 0x11, 0x01); 377 pseye_sccb_setreg(sc, 0x11, 0x01); 378 pseye_sccb_setreg(sc, 0x11, 0x01); 379 pseye_sccb_setreg(sc, 0x11, 0x01); 380 pseye_sccb_setreg(sc, 0x11, 0x01); 381 382 pseye_sccb_setreg(sc, 0x3d, 0x03); 383 pseye_sccb_setreg(sc, 0x17, 0x26); 384 pseye_sccb_setreg(sc, 0x18, 0xa0); 385 pseye_sccb_setreg(sc, 0x19, 0x07); 386 pseye_sccb_setreg(sc, 0x1a, 0xf0); 387 pseye_sccb_setreg(sc, 0x32, 0x00); 388 pseye_sccb_setreg(sc, 0x29, 0xa0); 389 pseye_sccb_setreg(sc, 0x2c, 0xf0); 390 pseye_sccb_setreg(sc, 0x65, 0x20); 391 pseye_sccb_setreg(sc, 0x11, 0x01); 392 pseye_sccb_setreg(sc, 0x42, 0x7f); 393 pseye_sccb_setreg(sc, 0x63, 0xe0); 394 pseye_sccb_setreg(sc, 0x64, 0xff); 395 pseye_sccb_setreg(sc, 0x66, 0x00); 396 pseye_sccb_setreg(sc, 0x13, 0xf0); 397 pseye_sccb_setreg(sc, 0x0d, 0x41); 398 pseye_sccb_setreg(sc, 0x0f, 0xc5); 399 pseye_sccb_setreg(sc, 0x14, 0x11); 400 401 pseye_sccb_setreg(sc, 0x22, 0x7f); 402 pseye_sccb_setreg(sc, 0x23, 0x03); 403 pseye_sccb_setreg(sc, 0x24, 0x40); 404 pseye_sccb_setreg(sc, 0x25, 0x30); 405 pseye_sccb_setreg(sc, 0x26, 0xa1); 406 pseye_sccb_setreg(sc, 0x2a, 0x00); 407 pseye_sccb_setreg(sc, 0x2b, 0x00); 408 pseye_sccb_setreg(sc, 0x6b, 0xaa); 409 pseye_sccb_setreg(sc, 0x13, 0xff); 410 411 pseye_sccb_setreg(sc, 0x90, 0x05); 412 pseye_sccb_setreg(sc, 0x91, 0x01); 413 pseye_sccb_setreg(sc, 0x92, 0x03); 414 pseye_sccb_setreg(sc, 0x93, 0x00); 415 pseye_sccb_setreg(sc, 0x94, 0x60); 416 pseye_sccb_setreg(sc, 0x95, 0x3c); 417 pseye_sccb_setreg(sc, 0x96, 0x24); 418 pseye_sccb_setreg(sc, 0x97, 0x1e); 419 pseye_sccb_setreg(sc, 0x98, 0x62); 420 pseye_sccb_setreg(sc, 0x99, 0x80); 421 pseye_sccb_setreg(sc, 0x9a, 0x1e); 422 pseye_sccb_setreg(sc, 0x9b, 0x08); 423 pseye_sccb_setreg(sc, 0x9c, 0x20); 424 pseye_sccb_setreg(sc, 0x9e, 0x81); 425 426 pseye_sccb_setreg(sc, 0xa6, 0x04); 427 pseye_sccb_setreg(sc, 0x7e, 0x0c); 428 pseye_sccb_setreg(sc, 0x7f, 0x16); 429 430 pseye_sccb_setreg(sc, 0x80, 0x2a); 431 pseye_sccb_setreg(sc, 0x81, 0x4e); 432 pseye_sccb_setreg(sc, 0x82, 0x61); 433 pseye_sccb_setreg(sc, 0x83, 0x6f); 434 pseye_sccb_setreg(sc, 0x84, 0x7b); 435 pseye_sccb_setreg(sc, 0x85, 0x86); 436 pseye_sccb_setreg(sc, 0x86, 0x8e); 437 pseye_sccb_setreg(sc, 0x87, 0x97); 438 pseye_sccb_setreg(sc, 0x88, 0xa4); 439 pseye_sccb_setreg(sc, 0x89, 0xaf); 440 pseye_sccb_setreg(sc, 0x8a, 0xc5); 441 pseye_sccb_setreg(sc, 0x8b, 0xd7); 442 pseye_sccb_setreg(sc, 0x8c, 0xe8); 443 pseye_sccb_setreg(sc, 0x8d, 0x20); 444 445 pseye_sccb_setreg(sc, 0x0c, 0x90); 446 447 pseye_setregv(sc, 0xc0, 0x50); 448 pseye_setregv(sc, 0xc1, 0x3c); 449 pseye_setregv(sc, 0xc2, 0x0c); 450 451 pseye_sccb_setreg(sc, 0x2b, 0x00); 452 pseye_sccb_setreg(sc, 0x22, 0x7f); 453 pseye_sccb_setreg(sc, 0x23, 0x03); 454 pseye_sccb_setreg(sc, 0x11, 0x01); 455 pseye_sccb_setreg(sc, 0x0c, 0xd0); 456 pseye_sccb_setreg(sc, 0x64, 0xff); 457 pseye_sccb_setreg(sc, 0x0d, 0x41); 458 459 pseye_sccb_setreg(sc, 0x14, 0x41); 460 pseye_sccb_setreg(sc, 0x0e, 0xcd); 461 pseye_sccb_setreg(sc, 0xac, 0xbf); 462 pseye_sccb_setreg(sc, 0x8e, 0x00); 463 pseye_sccb_setreg(sc, 0x0c, 0xd0); 464 465 pseye_stop(sc); 466 } 467 468 static void 469 pseye_sccb_init(struct pseye_softc *sc) 470 { 471 pseye_setregv(sc, 0xe7, 0x3a); 472 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 473 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 474 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 475 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42); 476 } 477 478 static void 479 pseye_stop(struct pseye_softc *sc) 480 { 481 pseye_led(sc, false); 482 pseye_setreg(sc, 0xe0, 0x09); 483 } 484 485 static void 486 pseye_start(struct pseye_softc *sc) 487 { 488 pseye_led(sc, true); 489 pseye_setreg(sc, 0xe0, 0x00); 490 } 491 492 static void 493 pseye_led(struct pseye_softc *sc, bool enabled) 494 { 495 uint8_t val; 496 497 val = pseye_getreg(sc, 0x21); 498 pseye_setreg(sc, 0x21, val | 0x80); 499 500 val = pseye_getreg(sc, 0x23); 501 if (enabled == true) 502 val |= 0x80; 503 else 504 val &= ~0x80; 505 pseye_setreg(sc, 0x23, val); 506 } 507 508 static uint8_t 509 pseye_getreg(struct pseye_softc *sc, uint16_t reg) 510 { 511 usb_device_request_t req; 512 usbd_status err; 513 uint8_t buf; 514 515 req.bmRequestType = UT_READ_VENDOR_DEVICE; 516 req.bRequest = 1; 517 USETW(req.wValue, 0x0000); 518 USETW(req.wIndex, reg); 519 USETW(req.wLength, 1); 520 521 err = usbd_do_request(sc->sc_udev, &req, &buf); 522 if (err) { 523 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n", 524 reg, usbd_errstr(err)); 525 return 0xff; 526 } 527 528 return buf; 529 } 530 531 static void 532 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val) 533 { 534 usb_device_request_t req; 535 usbd_status err; 536 537 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 538 req.bRequest = 1; 539 USETW(req.wValue, 0x0000); 540 USETW(req.wIndex, reg); 541 USETW(req.wLength, 1); 542 543 err = usbd_do_request(sc->sc_udev, &req, &val); 544 if (err) 545 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n", 546 reg, usbd_errstr(err)); 547 } 548 549 static void 550 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val) 551 { 552 pseye_setreg(sc, reg, val); 553 if (pseye_getreg(sc, reg) != val) 554 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n", 555 reg); 556 } 557 558 static void 559 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val) 560 { 561 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg); 562 pseye_setreg(sc, PSEYE_SCCB_WRITE, val); 563 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3); 564 565 if (pseye_sccb_status(sc) == false) 566 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n", 567 reg); 568 } 569 570 static bool 571 pseye_sccb_status(struct pseye_softc *sc) 572 { 573 int retry = 5; 574 uint8_t reg; 575 576 while (retry-- >= 0) { 577 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS); 578 if (reg == 0x00) 579 return true; 580 else if (reg == 0x04) 581 return false; 582 } 583 584 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n"); 585 return false; 586 } 587 588 static usbd_status 589 pseye_get_frame(struct pseye_softc *sc) 590 { 591 uint32_t len = sc->sc_bulkin_bufferlen; 592 593 if (sc->sc_dying) 594 return USBD_IOERROR; 595 596 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, 597 USBD_SHORT_XFER_OK|USBD_NO_COPY, 50, 598 sc->sc_bulkin_buffer, &len, "pseyerb"); 599 } 600 601 static int 602 pseye_init_pipes(struct pseye_softc *sc) 603 { 604 usbd_status err; 605 606 if (sc->sc_dying) 607 return EIO; 608 609 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0, 610 &sc->sc_bulkin_pipe); 611 if (err) { 612 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 613 usbd_errstr(err)); 614 return ENOMEM; 615 } 616 617 pseye_start(sc); 618 619 return 0; 620 } 621 622 int 623 pseye_close_pipes(struct pseye_softc *sc) 624 { 625 if (sc->sc_bulkin_pipe != NULL) { 626 usbd_abort_pipe(sc->sc_bulkin_pipe); 627 usbd_close_pipe(sc->sc_bulkin_pipe); 628 sc->sc_bulkin_pipe = NULL; 629 } 630 631 pseye_stop(sc); 632 633 return 0; 634 } 635 636 static void 637 pseye_transfer_thread(void *opaque) 638 { 639 struct pseye_softc *sc = opaque; 640 int error; 641 struct video_payload payload; 642 643 payload.frameno = 0; 644 645 while (sc->sc_running) { 646 error = pseye_get_frame(sc); 647 if (error == USBD_NORMAL_COMPLETION) { 648 payload.data = sc->sc_bulkin_buffer; 649 payload.size = sc->sc_bulkin_bufferlen; 650 payload.frameno = (payload.frameno + 1) & 1; 651 payload.end_of_frame = 1; 652 video_submit_payload(sc->sc_videodev, &payload); 653 } 654 } 655 656 mutex_enter(&sc->sc_mtx); 657 cv_broadcast(&sc->sc_cv); 658 mutex_exit(&sc->sc_mtx); 659 660 kthread_exit(0); 661 } 662 663 /* video(9) API implementations */ 664 static int 665 pseye_open(void *opaque, int flags) 666 { 667 struct pseye_softc *sc = opaque; 668 669 if (sc->sc_dying) 670 return EIO; 671 672 return pseye_init_pipes(sc); 673 } 674 675 static void 676 pseye_close(void *opaque) 677 { 678 struct pseye_softc *sc = opaque; 679 680 pseye_close_pipes(sc); 681 } 682 683 static const char * 684 pseye_get_devname(void *opaque) 685 { 686 return "PLAYSTATION(R) Eye"; 687 } 688 689 static int 690 pseye_get_format(void *opaque, struct video_format *format) 691 { 692 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */ 693 format->width = 640; 694 format->height = 480; 695 format->aspect_x = 4; 696 format->aspect_y = 3; 697 format->sample_size = format->width * format->height * 2; 698 format->stride = format->width * 2; 699 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED; 700 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; 701 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; 702 format->interlace_flags = VIDEO_INTERLACE_ON; 703 format->priv = 0; 704 705 return 0; 706 } 707 708 static int 709 pseye_set_format(void *opaque, struct video_format *format) 710 { 711 #if notyet 712 if (format->pixel_format != VIDEO_FORMAT_YUYV) 713 return EINVAL; 714 if (format->width != 640 || format->height != 480) 715 return EINVAL; 716 #endif 717 /* XXX */ 718 return pseye_get_format(opaque, format); 719 } 720 721 static int 722 pseye_start_transfer(void *opaque) 723 { 724 struct pseye_softc *sc = opaque; 725 int err = 0; 726 727 mutex_enter(&sc->sc_mtx); 728 if (sc->sc_running == 0) { 729 sc->sc_running = 1; 730 err = kthread_create(PRI_NONE, 0, NULL, pseye_transfer_thread, 731 opaque, NULL, device_xname(sc->sc_dev)); 732 } else 733 aprint_error_dev(sc->sc_dev, "transfer already in progress\n"); 734 mutex_exit(&sc->sc_mtx); 735 736 return 0; 737 } 738 739 static int 740 pseye_stop_transfer(void *opaque) 741 { 742 struct pseye_softc *sc = opaque; 743 744 mutex_enter(&sc->sc_mtx); 745 if (sc->sc_running) { 746 sc->sc_running = 0; 747 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 748 } 749 mutex_exit(&sc->sc_mtx); 750 751 return 0; 752 } 753
Indexes created Tue Sep 30 11:09:46 GMT 2025