pseye.c revision 1.10
1 /* $NetBSD: pseye.c,v 1.10 2008/10/15 06:51:20 wrstuden 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 /* 30 * Sony PLAYSTATION(R) 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 1.10 2008/10/15 06:51:20 wrstuden Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 #include <sys/fcntl.h> 47 #include <sys/conf.h> 48 #include <sys/poll.h> 49 #include <sys/bus.h> 50 #include <sys/mutex.h> 51 #include <sys/kthread.h> 52 #include <sys/condvar.h> 53 54 #include <uvm/uvm_extern.h> 55 56 #include <dev/usb/usb.h> 57 #include <dev/usb/usbdi.h> 58 #include <dev/usb/usbdi_util.h> 59 #include <dev/usb/usbdevs.h> 60 61 #include <dev/video_if.h> 62 63 #define PRI_PSEYE PRI_BIO 64 65 /* Bulk-in buffer length */ 66 #define PSEYE_BULKIN_BUFLEN (640 * 480 * 2) 67 68 /* SCCB/sensor interface */ 69 #define PSEYE_SCCB_ADDRESS 0xf1 70 #define PSEYE_SCCB_SUBADDR 0xf2 71 #define PSEYE_SCCB_WRITE 0xf3 72 #define PSEYE_SCCB_READ 0xf4 73 #define PSEYE_SCCB_OPERATION 0xf5 74 #define PSEYE_SCCB_STATUS 0xf6 75 76 #define PSEYE_SCCB_OP_WRITE_3 0x37 77 #define PSEYE_SCCB_OP_WRITE_2 0x33 78 #define PSEYE_SCCB_OP_READ_2 0xf9 79 80 struct pseye_softc { 81 USBBASEDEVICE sc_dev; 82 83 usbd_device_handle sc_udev; 84 usbd_interface_handle sc_iface; 85 86 device_t sc_videodev; 87 char sc_running; 88 89 kcondvar_t sc_cv; 90 kmutex_t sc_mtx; 91 92 usbd_pipe_handle sc_bulkin_pipe; 93 usbd_xfer_handle sc_bulkin_xfer; 94 int sc_bulkin; 95 uint8_t *sc_bulkin_buffer; 96 int sc_bulkin_bufferlen; 97 98 char sc_dying; 99 }; 100 101 static int pseye_match(device_t, cfdata_t, void *); 102 static void pseye_attach(device_t, device_t, void *); 103 static int pseye_detach(device_t, int); 104 static void pseye_childdet(device_t, device_t); 105 static int pseye_activate(device_t, enum devact); 106 107 static void pseye_init(struct pseye_softc *); 108 static void pseye_sccb_init(struct pseye_softc *); 109 static void pseye_stop(struct pseye_softc *); 110 static void pseye_start(struct pseye_softc *); 111 static void pseye_led(struct pseye_softc *, bool); 112 static uint8_t pseye_getreg(struct pseye_softc *, uint16_t); 113 static void pseye_setreg(struct pseye_softc *, uint16_t, uint8_t); 114 static void pseye_setregv(struct pseye_softc *, uint16_t, uint8_t); 115 static void pseye_sccb_setreg(struct pseye_softc *, uint8_t, uint8_t); 116 static bool pseye_sccb_status(struct pseye_softc *); 117 118 static int pseye_init_pipes(struct pseye_softc *); 119 static int pseye_close_pipes(struct pseye_softc *); 120 121 static usbd_status pseye_get_frame(struct pseye_softc *); 122 123 /* video(9) API */ 124 static int pseye_open(void *, int); 125 static void pseye_close(void *); 126 static const char * pseye_get_devname(void *); 127 static int pseye_enum_format(void *, uint32_t, 128 struct video_format *); 129 static int pseye_get_format(void *, struct video_format *); 130 static int pseye_set_format(void *, struct video_format *); 131 static int pseye_try_format(void *, struct video_format *); 132 static int pseye_start_transfer(void *); 133 static int pseye_stop_transfer(void *); 134 135 CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc), 136 pseye_match, pseye_attach, pseye_detach, pseye_activate, 137 NULL, pseye_childdet); 138 139 static const struct video_hw_if pseye_hw_if = { 140 .open = pseye_open, 141 .close = pseye_close, 142 .get_devname = pseye_get_devname, 143 .enum_format = pseye_enum_format, 144 .get_format = pseye_get_format, 145 .set_format = pseye_set_format, 146 .try_format = pseye_try_format, 147 .start_transfer = pseye_start_transfer, 148 .stop_transfer = pseye_stop_transfer, 149 .control_iter_init = NULL, 150 .control_iter_next = NULL, 151 .get_control_desc_group = NULL, 152 .get_control_group = NULL, 153 .set_control_group = NULL, 154 }; 155 156 static int 157 pseye_match(device_t parent, cfdata_t match, void *opaque) 158 { 159 struct usbif_attach_arg *uaa = opaque; 160 161 if (uaa->class != UICLASS_VENDOR) 162 return UMATCH_NONE; 163 164 if (uaa->vendor == USB_VENDOR_OMNIVISION2) { 165 switch (uaa->product) { 166 case USB_PRODUCT_OMNIVISION2_PSEYE: 167 if (uaa->ifaceno != 0) 168 return UMATCH_NONE; 169 return UMATCH_VENDOR_PRODUCT; 170 } 171 } 172 173 return UMATCH_NONE; 174 } 175 176 static void 177 pseye_attach(device_t parent, device_t self, void *opaque) 178 { 179 struct pseye_softc *sc = device_private(self); 180 struct usbif_attach_arg *uaa = opaque; 181 usbd_device_handle dev = uaa->device; 182 usb_interface_descriptor_t *id = NULL; 183 usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL; 184 char *devinfo; 185 int i; 186 187 devinfo = usbd_devinfo_alloc(dev, 0); 188 aprint_naive("\n"); 189 aprint_normal(": %s\n", devinfo); 190 usbd_devinfo_free(devinfo); 191 192 sc->sc_dev = self; 193 sc->sc_udev = dev; 194 sc->sc_iface = uaa->iface; 195 sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN; 196 197 sc->sc_dying = sc->sc_running = 0; 198 cv_init(&sc->sc_cv, device_xname(self)); 199 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 200 201 id = usbd_get_interface_descriptor(sc->sc_iface); 202 if (id == NULL) { 203 aprint_error_dev(self, "failed to get interface descriptor\n"); 204 sc->sc_dying = 1; 205 return; 206 } 207 208 for (i = 0; i < id->bNumEndpoints; i++) { 209 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 210 if (ed == NULL) { 211 aprint_error_dev(self, "couldn't get ep %d\n", i); 212 sc->sc_dying = 1; 213 return; 214 } 215 216 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 217 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 218 ed_bulkin = ed; 219 break; 220 } 221 } 222 223 if (ed_bulkin == NULL) { 224 aprint_error_dev(self, "no bulk-in endpoint found\n"); 225 sc->sc_dying = 1; 226 return; 227 } 228 229 sc->sc_bulkin = ed_bulkin->bEndpointAddress; 230 231 sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev); 232 if (sc->sc_bulkin_xfer == NULL) { 233 sc->sc_dying = 1; 234 return; 235 } 236 sc->sc_bulkin_buffer = usbd_alloc_buffer(sc->sc_bulkin_xfer, 237 sc->sc_bulkin_bufferlen); 238 if (sc->sc_bulkin_buffer == NULL) { 239 usbd_free_xfer(sc->sc_bulkin_xfer); 240 sc->sc_bulkin_xfer = NULL; 241 sc->sc_dying = 1; 242 return; 243 } 244 245 pseye_init(sc); 246 247 if (!pmf_device_register(self, NULL, NULL)) 248 aprint_error_dev(self, "couldn't establish power handler\n"); 249 250 sc->sc_videodev = video_attach_mi(&pseye_hw_if, self); 251 if (sc->sc_videodev == NULL) { 252 aprint_error_dev(self, "couldn't attach video layer\n"); 253 sc->sc_dying = 1; 254 return; 255 } 256 257 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 258 USBDEV(self)); 259 260 } 261 262 static int 263 pseye_detach(device_t self, int flags) 264 { 265 struct pseye_softc *sc = device_private(self); 266 267 sc->sc_dying = 1; 268 269 pmf_device_deregister(self); 270 271 if (sc->sc_videodev != NULL) { 272 config_detach(sc->sc_videodev, flags); 273 sc->sc_videodev = NULL; 274 } 275 276 if (sc->sc_bulkin_xfer != NULL) { 277 usbd_free_xfer(sc->sc_bulkin_xfer); 278 sc->sc_bulkin_xfer = NULL; 279 } 280 281 if (sc->sc_bulkin_pipe != NULL) { 282 usbd_abort_pipe(sc->sc_bulkin_pipe); 283 sc->sc_bulkin_pipe = NULL; 284 } 285 286 mutex_enter(&sc->sc_mtx); 287 if (sc->sc_running) { 288 sc->sc_running = 0; 289 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 290 } 291 mutex_exit(&sc->sc_mtx); 292 293 cv_destroy(&sc->sc_cv); 294 mutex_destroy(&sc->sc_mtx); 295 296 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 297 USBDEV(sc->sc_dev)); 298 299 return 0; 300 } 301 302 int 303 pseye_activate(device_ptr_t self, enum devact act) 304 { 305 struct pseye_softc *sc = device_private(self); 306 int rv; 307 308 rv = 0; 309 310 switch (act) { 311 case DVACT_ACTIVATE: 312 break; 313 case DVACT_DEACTIVATE: 314 sc->sc_dying = 1; 315 break; 316 } 317 318 return rv; 319 } 320 321 static void 322 pseye_childdet(device_t self, device_t child) 323 { 324 struct pseye_softc *sc = device_private(self); 325 326 if (sc->sc_videodev) { 327 KASSERT(sc->sc_videodev == child); 328 sc->sc_videodev = NULL; 329 } 330 } 331 332 /* 333 * Device access 334 */ 335 336 static void 337 pseye_init(struct pseye_softc *sc) 338 { 339 pseye_sccb_init(sc); 340 341 pseye_setregv(sc, 0xc2, 0x0c); 342 pseye_setregv(sc, 0x88, 0xf8); 343 pseye_setregv(sc, 0xc3, 0x69); 344 pseye_setregv(sc, 0x89, 0xff); 345 pseye_setregv(sc, 0x76, 0x03); 346 pseye_setregv(sc, 0x92, 0x01); 347 pseye_setregv(sc, 0x93, 0x18); 348 pseye_setregv(sc, 0x94, 0x10); 349 pseye_setregv(sc, 0x95, 0x10); 350 pseye_setregv(sc, 0xe2, 0x00); 351 pseye_setregv(sc, 0xe7, 0x3e); 352 353 pseye_setreg(sc, 0x1c, 0x0a); 354 pseye_setreg(sc, 0x1d, 0x22); 355 pseye_setreg(sc, 0x1d, 0x06); 356 pseye_setregv(sc, 0x96, 0x00); 357 358 pseye_setreg(sc, 0x97, 0x20); 359 pseye_setreg(sc, 0x97, 0x20); 360 pseye_setreg(sc, 0x97, 0x20); 361 pseye_setreg(sc, 0x97, 0x0a); 362 pseye_setreg(sc, 0x97, 0x3f); 363 pseye_setreg(sc, 0x97, 0x4a); 364 pseye_setreg(sc, 0x97, 0x20); 365 pseye_setreg(sc, 0x97, 0x15); 366 pseye_setreg(sc, 0x97, 0x0b); 367 368 pseye_setregv(sc, 0x8e, 0x40); 369 pseye_setregv(sc, 0x1f, 0x81); 370 pseye_setregv(sc, 0x34, 0x05); 371 pseye_setregv(sc, 0xe3, 0x04); 372 pseye_setregv(sc, 0x88, 0x00); 373 pseye_setregv(sc, 0x89, 0x00); 374 pseye_setregv(sc, 0x76, 0x00); 375 pseye_setregv(sc, 0xe7, 0x2e); 376 pseye_setregv(sc, 0x31, 0xf9); 377 pseye_setregv(sc, 0x25, 0x42); 378 pseye_setregv(sc, 0x21, 0xf0); 379 380 pseye_setreg(sc, 0x1c, 0x00); 381 pseye_setreg(sc, 0x1d, 0x40); 382 pseye_setreg(sc, 0x1d, 0x02); 383 pseye_setreg(sc, 0x1d, 0x00); 384 pseye_setreg(sc, 0x1d, 0x02); 385 pseye_setreg(sc, 0x1d, 0x57); 386 pseye_setreg(sc, 0x1d, 0xff); 387 388 pseye_setregv(sc, 0x8d, 0x1c); 389 pseye_setregv(sc, 0x8e, 0x80); 390 pseye_setregv(sc, 0xe5, 0x04); 391 392 pseye_sccb_setreg(sc, 0x12, 0x80); 393 pseye_sccb_setreg(sc, 0x11, 0x01); 394 pseye_sccb_setreg(sc, 0x11, 0x01); 395 pseye_sccb_setreg(sc, 0x11, 0x01); 396 pseye_sccb_setreg(sc, 0x11, 0x01); 397 pseye_sccb_setreg(sc, 0x11, 0x01); 398 pseye_sccb_setreg(sc, 0x11, 0x01); 399 pseye_sccb_setreg(sc, 0x11, 0x01); 400 pseye_sccb_setreg(sc, 0x11, 0x01); 401 pseye_sccb_setreg(sc, 0x11, 0x01); 402 pseye_sccb_setreg(sc, 0x11, 0x01); 403 pseye_sccb_setreg(sc, 0x11, 0x01); 404 405 pseye_sccb_setreg(sc, 0x3d, 0x03); 406 pseye_sccb_setreg(sc, 0x17, 0x26); 407 pseye_sccb_setreg(sc, 0x18, 0xa0); 408 pseye_sccb_setreg(sc, 0x19, 0x07); 409 pseye_sccb_setreg(sc, 0x1a, 0xf0); 410 pseye_sccb_setreg(sc, 0x32, 0x00); 411 pseye_sccb_setreg(sc, 0x29, 0xa0); 412 pseye_sccb_setreg(sc, 0x2c, 0xf0); 413 pseye_sccb_setreg(sc, 0x65, 0x20); 414 pseye_sccb_setreg(sc, 0x11, 0x01); 415 pseye_sccb_setreg(sc, 0x42, 0x7f); 416 pseye_sccb_setreg(sc, 0x63, 0xe0); 417 pseye_sccb_setreg(sc, 0x64, 0xff); 418 pseye_sccb_setreg(sc, 0x66, 0x00); 419 pseye_sccb_setreg(sc, 0x13, 0xf0); 420 pseye_sccb_setreg(sc, 0x0d, 0x41); 421 pseye_sccb_setreg(sc, 0x0f, 0xc5); 422 pseye_sccb_setreg(sc, 0x14, 0x11); 423 424 pseye_sccb_setreg(sc, 0x22, 0x7f); 425 pseye_sccb_setreg(sc, 0x23, 0x03); 426 pseye_sccb_setreg(sc, 0x24, 0x40); 427 pseye_sccb_setreg(sc, 0x25, 0x30); 428 pseye_sccb_setreg(sc, 0x26, 0xa1); 429 pseye_sccb_setreg(sc, 0x2a, 0x00); 430 pseye_sccb_setreg(sc, 0x2b, 0x00); 431 pseye_sccb_setreg(sc, 0x6b, 0xaa); 432 pseye_sccb_setreg(sc, 0x13, 0xff); 433 434 pseye_sccb_setreg(sc, 0x90, 0x05); 435 pseye_sccb_setreg(sc, 0x91, 0x01); 436 pseye_sccb_setreg(sc, 0x92, 0x03); 437 pseye_sccb_setreg(sc, 0x93, 0x00); 438 pseye_sccb_setreg(sc, 0x94, 0x60); 439 pseye_sccb_setreg(sc, 0x95, 0x3c); 440 pseye_sccb_setreg(sc, 0x96, 0x24); 441 pseye_sccb_setreg(sc, 0x97, 0x1e); 442 pseye_sccb_setreg(sc, 0x98, 0x62); 443 pseye_sccb_setreg(sc, 0x99, 0x80); 444 pseye_sccb_setreg(sc, 0x9a, 0x1e); 445 pseye_sccb_setreg(sc, 0x9b, 0x08); 446 pseye_sccb_setreg(sc, 0x9c, 0x20); 447 pseye_sccb_setreg(sc, 0x9e, 0x81); 448 449 pseye_sccb_setreg(sc, 0xa6, 0x04); 450 pseye_sccb_setreg(sc, 0x7e, 0x0c); 451 pseye_sccb_setreg(sc, 0x7f, 0x16); 452 453 pseye_sccb_setreg(sc, 0x80, 0x2a); 454 pseye_sccb_setreg(sc, 0x81, 0x4e); 455 pseye_sccb_setreg(sc, 0x82, 0x61); 456 pseye_sccb_setreg(sc, 0x83, 0x6f); 457 pseye_sccb_setreg(sc, 0x84, 0x7b); 458 pseye_sccb_setreg(sc, 0x85, 0x86); 459 pseye_sccb_setreg(sc, 0x86, 0x8e); 460 pseye_sccb_setreg(sc, 0x87, 0x97); 461 pseye_sccb_setreg(sc, 0x88, 0xa4); 462 pseye_sccb_setreg(sc, 0x89, 0xaf); 463 pseye_sccb_setreg(sc, 0x8a, 0xc5); 464 pseye_sccb_setreg(sc, 0x8b, 0xd7); 465 pseye_sccb_setreg(sc, 0x8c, 0xe8); 466 pseye_sccb_setreg(sc, 0x8d, 0x20); 467 468 pseye_sccb_setreg(sc, 0x0c, 0x90); 469 470 pseye_setregv(sc, 0xc0, 0x50); 471 pseye_setregv(sc, 0xc1, 0x3c); 472 pseye_setregv(sc, 0xc2, 0x0c); 473 474 pseye_sccb_setreg(sc, 0x2b, 0x00); 475 pseye_sccb_setreg(sc, 0x22, 0x7f); 476 pseye_sccb_setreg(sc, 0x23, 0x03); 477 pseye_sccb_setreg(sc, 0x11, 0x01); 478 pseye_sccb_setreg(sc, 0x0c, 0xd0); 479 pseye_sccb_setreg(sc, 0x64, 0xff); 480 pseye_sccb_setreg(sc, 0x0d, 0x41); 481 482 pseye_sccb_setreg(sc, 0x14, 0x41); 483 pseye_sccb_setreg(sc, 0x0e, 0xcd); 484 pseye_sccb_setreg(sc, 0xac, 0xbf); 485 pseye_sccb_setreg(sc, 0x8e, 0x00); 486 pseye_sccb_setreg(sc, 0x0c, 0xd0); 487 488 pseye_stop(sc); 489 } 490 491 static void 492 pseye_sccb_init(struct pseye_softc *sc) 493 { 494 pseye_setregv(sc, 0xe7, 0x3a); 495 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 496 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 497 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 498 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42); 499 } 500 501 static void 502 pseye_stop(struct pseye_softc *sc) 503 { 504 pseye_led(sc, false); 505 pseye_setreg(sc, 0xe0, 0x09); 506 } 507 508 static void 509 pseye_start(struct pseye_softc *sc) 510 { 511 pseye_led(sc, true); 512 pseye_setreg(sc, 0xe0, 0x00); 513 } 514 515 static void 516 pseye_led(struct pseye_softc *sc, bool enabled) 517 { 518 uint8_t val; 519 520 val = pseye_getreg(sc, 0x21); 521 pseye_setreg(sc, 0x21, val | 0x80); 522 523 val = pseye_getreg(sc, 0x23); 524 if (enabled == true) 525 val |= 0x80; 526 else 527 val &= ~0x80; 528 pseye_setreg(sc, 0x23, val); 529 } 530 531 static uint8_t 532 pseye_getreg(struct pseye_softc *sc, uint16_t reg) 533 { 534 usb_device_request_t req; 535 usbd_status err; 536 uint8_t buf; 537 538 req.bmRequestType = UT_READ_VENDOR_DEVICE; 539 req.bRequest = 1; 540 USETW(req.wValue, 0x0000); 541 USETW(req.wIndex, reg); 542 USETW(req.wLength, 1); 543 544 err = usbd_do_request(sc->sc_udev, &req, &buf); 545 if (err) { 546 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n", 547 reg, usbd_errstr(err)); 548 return 0xff; 549 } 550 551 return buf; 552 } 553 554 static void 555 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val) 556 { 557 usb_device_request_t req; 558 usbd_status err; 559 560 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 561 req.bRequest = 1; 562 USETW(req.wValue, 0x0000); 563 USETW(req.wIndex, reg); 564 USETW(req.wLength, 1); 565 566 err = usbd_do_request(sc->sc_udev, &req, &val); 567 if (err) 568 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n", 569 reg, usbd_errstr(err)); 570 } 571 572 static void 573 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val) 574 { 575 pseye_setreg(sc, reg, val); 576 if (pseye_getreg(sc, reg) != val) 577 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n", 578 reg); 579 } 580 581 static void 582 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val) 583 { 584 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg); 585 pseye_setreg(sc, PSEYE_SCCB_WRITE, val); 586 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3); 587 588 if (pseye_sccb_status(sc) == false) 589 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n", 590 reg); 591 } 592 593 static bool 594 pseye_sccb_status(struct pseye_softc *sc) 595 { 596 int retry = 5; 597 uint8_t reg; 598 599 while (retry-- >= 0) { 600 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS); 601 if (reg == 0x00) 602 return true; 603 else if (reg == 0x04) 604 return false; 605 } 606 607 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n"); 608 return false; 609 } 610 611 static usbd_status 612 pseye_get_frame(struct pseye_softc *sc) 613 { 614 uint32_t len = sc->sc_bulkin_bufferlen; 615 616 if (sc->sc_dying) 617 return USBD_IOERROR; 618 619 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, 620 USBD_SHORT_XFER_OK|USBD_NO_COPY, 50, 621 sc->sc_bulkin_buffer, &len, "pseyerb"); 622 } 623 624 static int 625 pseye_init_pipes(struct pseye_softc *sc) 626 { 627 usbd_status err; 628 629 if (sc->sc_dying) 630 return EIO; 631 632 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0, 633 &sc->sc_bulkin_pipe); 634 if (err) { 635 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 636 usbd_errstr(err)); 637 return ENOMEM; 638 } 639 640 pseye_start(sc); 641 642 return 0; 643 } 644 645 int 646 pseye_close_pipes(struct pseye_softc *sc) 647 { 648 if (sc->sc_bulkin_pipe != NULL) { 649 usbd_abort_pipe(sc->sc_bulkin_pipe); 650 usbd_close_pipe(sc->sc_bulkin_pipe); 651 sc->sc_bulkin_pipe = NULL; 652 } 653 654 pseye_stop(sc); 655 656 return 0; 657 } 658 659 static void 660 pseye_transfer_thread(void *opaque) 661 { 662 struct pseye_softc *sc = opaque; 663 int error; 664 struct video_payload payload; 665 666 payload.frameno = 0; 667 668 while (sc->sc_running) { 669 error = pseye_get_frame(sc); 670 if (error == USBD_NORMAL_COMPLETION) { 671 payload.data = sc->sc_bulkin_buffer; 672 payload.size = sc->sc_bulkin_bufferlen; 673 payload.frameno = (payload.frameno + 1) & 1; 674 payload.end_of_frame = 1; 675 video_submit_payload(sc->sc_videodev, &payload); 676 } 677 } 678 679 mutex_enter(&sc->sc_mtx); 680 cv_broadcast(&sc->sc_cv); 681 mutex_exit(&sc->sc_mtx); 682 683 kthread_exit(0); 684 } 685 686 /* video(9) API implementations */ 687 static int 688 pseye_open(void *opaque, int flags) 689 { 690 struct pseye_softc *sc = opaque; 691 692 if (sc->sc_dying) 693 return EIO; 694 695 return pseye_init_pipes(sc); 696 } 697 698 static void 699 pseye_close(void *opaque) 700 { 701 struct pseye_softc *sc = opaque; 702 703 pseye_close_pipes(sc); 704 } 705 706 static const char * 707 pseye_get_devname(void *opaque) 708 { 709 return "PLAYSTATION(R) Eye"; 710 } 711 712 static int 713 pseye_enum_format(void *opaque, uint32_t index, struct video_format *format) 714 { 715 if (index != 0) 716 return EINVAL; 717 return pseye_get_format(opaque, format); 718 } 719 720 static int 721 pseye_get_format(void *opaque, struct video_format *format) 722 { 723 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */ 724 format->width = 640; 725 format->height = 480; 726 format->aspect_x = 4; 727 format->aspect_y = 3; 728 format->sample_size = format->width * format->height * 2; 729 format->stride = format->width * 2; 730 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED; 731 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; 732 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; 733 format->interlace_flags = VIDEO_INTERLACE_ON; 734 format->priv = 0; 735 736 return 0; 737 } 738 739 static int 740 pseye_set_format(void *opaque, struct video_format *format) 741 { 742 #if notyet 743 if (format->pixel_format != VIDEO_FORMAT_YUYV) 744 return EINVAL; 745 if (format->width != 640 || format->height != 480) 746 return EINVAL; 747 #endif 748 /* XXX */ 749 return pseye_get_format(opaque, format); 750 } 751 752 static int 753 pseye_try_format(void *opaque, struct video_format *format) 754 { 755 return pseye_get_format(opaque, format); 756 } 757 758 static int 759 pseye_start_transfer(void *opaque) 760 { 761 struct pseye_softc *sc = opaque; 762 int err = 0; 763 764 mutex_enter(&sc->sc_mtx); 765 if (sc->sc_running == 0) { 766 sc->sc_running = 1; 767 err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread, 768 opaque, NULL, device_xname(sc->sc_dev)); 769 } else 770 aprint_error_dev(sc->sc_dev, "transfer already in progress\n"); 771 mutex_exit(&sc->sc_mtx); 772 773 return err; 774 } 775 776 static int 777 pseye_stop_transfer(void *opaque) 778 { 779 struct pseye_softc *sc = opaque; 780 781 mutex_enter(&sc->sc_mtx); 782 if (sc->sc_running) { 783 sc->sc_running = 0; 784 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 785 } 786 mutex_exit(&sc->sc_mtx); 787 788 return 0; 789 } 790
Indexes created Tue Sep 30 06:09:59 GMT 2025