pseye.c revision 1.11.4.4
1 /* $NetBSD: pseye.c,v 1.11.4.4 2009/09/16 13:37:58 yamt 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 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 1.11.4.4 2009/09/16 13:37:58 yamt 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 #include <sys/module.h> 54 55 #include <uvm/uvm_extern.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdi_util.h> 60 #include <dev/usb/usbdevs.h> 61 #include <dev/usb/uvideoreg.h> 62 63 #include <dev/video_if.h> 64 65 #define PRI_PSEYE PRI_BIO 66 67 /* Bulk-in buffer length -- make room for payload + UVC headers */ 68 #define PSEYE_BULKIN_BUFLEN ((640 * 480 * 2) + 4096) 69 #define PSEYE_BULKIN_BLKLEN 2048 70 71 /* SCCB/sensor interface */ 72 #define PSEYE_SCCB_ADDRESS 0xf1 73 #define PSEYE_SCCB_SUBADDR 0xf2 74 #define PSEYE_SCCB_WRITE 0xf3 75 #define PSEYE_SCCB_READ 0xf4 76 #define PSEYE_SCCB_OPERATION 0xf5 77 #define PSEYE_SCCB_STATUS 0xf6 78 79 #define PSEYE_SCCB_OP_WRITE_3 0x37 80 #define PSEYE_SCCB_OP_WRITE_2 0x33 81 #define PSEYE_SCCB_OP_READ_2 0xf9 82 83 struct pseye_softc { 84 USBBASEDEVICE sc_dev; 85 86 usbd_device_handle sc_udev; 87 usbd_interface_handle sc_iface; 88 89 device_t sc_videodev; 90 char sc_running; 91 92 kcondvar_t sc_cv; 93 kmutex_t sc_mtx; 94 95 usbd_pipe_handle sc_bulkin_pipe; 96 usbd_xfer_handle sc_bulkin_xfer; 97 int sc_bulkin; 98 uint8_t *sc_bulkin_buffer; 99 int sc_bulkin_bufferlen; 100 101 char sc_dying; 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 int pseye_enum_format(void *, uint32_t, 132 struct video_format *); 133 static int pseye_get_format(void *, struct video_format *); 134 static int pseye_set_format(void *, struct video_format *); 135 static int pseye_try_format(void *, struct video_format *); 136 static int pseye_start_transfer(void *); 137 static int pseye_stop_transfer(void *); 138 139 CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc), 140 pseye_match, pseye_attach, pseye_detach, pseye_activate, 141 NULL, pseye_childdet); 142 143 static const struct video_hw_if pseye_hw_if = { 144 .open = pseye_open, 145 .close = pseye_close, 146 .get_devname = pseye_get_devname, 147 .enum_format = pseye_enum_format, 148 .get_format = pseye_get_format, 149 .set_format = pseye_set_format, 150 .try_format = pseye_try_format, 151 .start_transfer = pseye_start_transfer, 152 .stop_transfer = pseye_stop_transfer, 153 .control_iter_init = NULL, 154 .control_iter_next = NULL, 155 .get_control_desc_group = NULL, 156 .get_control_group = NULL, 157 .set_control_group = NULL, 158 }; 159 160 static int 161 pseye_match(device_t parent, cfdata_t match, void *opaque) 162 { 163 struct usbif_attach_arg *uaa = opaque; 164 165 if (uaa->class != UICLASS_VENDOR) 166 return UMATCH_NONE; 167 168 if (uaa->vendor == USB_VENDOR_OMNIVISION2) { 169 switch (uaa->product) { 170 case USB_PRODUCT_OMNIVISION2_PSEYE: 171 if (uaa->ifaceno != 0) 172 return UMATCH_NONE; 173 return UMATCH_VENDOR_PRODUCT; 174 } 175 } 176 177 return UMATCH_NONE; 178 } 179 180 static void 181 pseye_attach(device_t parent, device_t self, void *opaque) 182 { 183 struct pseye_softc *sc = device_private(self); 184 struct usbif_attach_arg *uaa = opaque; 185 usbd_device_handle dev = uaa->device; 186 usb_interface_descriptor_t *id = NULL; 187 usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL; 188 char *devinfo; 189 int i; 190 191 devinfo = usbd_devinfo_alloc(dev, 0); 192 aprint_naive("\n"); 193 aprint_normal(": %s\n", devinfo); 194 usbd_devinfo_free(devinfo); 195 196 sc->sc_dev = self; 197 sc->sc_udev = dev; 198 sc->sc_iface = uaa->iface; 199 sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN; 200 201 sc->sc_dying = sc->sc_running = 0; 202 cv_init(&sc->sc_cv, device_xname(self)); 203 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 204 205 id = usbd_get_interface_descriptor(sc->sc_iface); 206 if (id == NULL) { 207 aprint_error_dev(self, "failed to get interface descriptor\n"); 208 sc->sc_dying = 1; 209 return; 210 } 211 212 for (i = 0; i < id->bNumEndpoints; i++) { 213 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 214 if (ed == NULL) { 215 aprint_error_dev(self, "couldn't get ep %d\n", i); 216 sc->sc_dying = 1; 217 return; 218 } 219 220 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 221 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 222 ed_bulkin = ed; 223 break; 224 } 225 } 226 227 if (ed_bulkin == NULL) { 228 aprint_error_dev(self, "no bulk-in endpoint found\n"); 229 sc->sc_dying = 1; 230 return; 231 } 232 233 sc->sc_bulkin = ed_bulkin->bEndpointAddress; 234 235 sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev); 236 if (sc->sc_bulkin_xfer == NULL) { 237 sc->sc_dying = 1; 238 return; 239 } 240 sc->sc_bulkin_buffer = usbd_alloc_buffer(sc->sc_bulkin_xfer, 241 sc->sc_bulkin_bufferlen); 242 if (sc->sc_bulkin_buffer == NULL) { 243 usbd_free_xfer(sc->sc_bulkin_xfer); 244 sc->sc_bulkin_xfer = NULL; 245 sc->sc_dying = 1; 246 return; 247 } 248 249 pseye_init(sc); 250 251 if (!pmf_device_register(self, NULL, NULL)) 252 aprint_error_dev(self, "couldn't establish power handler\n"); 253 254 sc->sc_videodev = video_attach_mi(&pseye_hw_if, self); 255 if (sc->sc_videodev == NULL) { 256 aprint_error_dev(self, "couldn't attach video layer\n"); 257 sc->sc_dying = 1; 258 return; 259 } 260 261 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 262 USBDEV(self)); 263 264 } 265 266 static int 267 pseye_detach(device_t self, int flags) 268 { 269 struct pseye_softc *sc = device_private(self); 270 271 sc->sc_dying = 1; 272 273 pmf_device_deregister(self); 274 275 if (sc->sc_videodev != NULL) { 276 config_detach(sc->sc_videodev, flags); 277 sc->sc_videodev = NULL; 278 } 279 280 if (sc->sc_bulkin_xfer != NULL) { 281 usbd_free_xfer(sc->sc_bulkin_xfer); 282 sc->sc_bulkin_xfer = NULL; 283 } 284 285 if (sc->sc_bulkin_pipe != NULL) { 286 usbd_abort_pipe(sc->sc_bulkin_pipe); 287 sc->sc_bulkin_pipe = NULL; 288 } 289 290 mutex_enter(&sc->sc_mtx); 291 if (sc->sc_running) { 292 sc->sc_running = 0; 293 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 294 } 295 mutex_exit(&sc->sc_mtx); 296 297 cv_destroy(&sc->sc_cv); 298 mutex_destroy(&sc->sc_mtx); 299 300 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 301 USBDEV(sc->sc_dev)); 302 303 return 0; 304 } 305 306 int 307 pseye_activate(device_ptr_t self, enum devact act) 308 { 309 struct pseye_softc *sc = device_private(self); 310 int rv; 311 312 rv = 0; 313 314 switch (act) { 315 case DVACT_ACTIVATE: 316 break; 317 case DVACT_DEACTIVATE: 318 sc->sc_dying = 1; 319 break; 320 } 321 322 return rv; 323 } 324 325 static void 326 pseye_childdet(device_t self, device_t child) 327 { 328 struct pseye_softc *sc = device_private(self); 329 330 if (sc->sc_videodev) { 331 KASSERT(sc->sc_videodev == child); 332 sc->sc_videodev = NULL; 333 } 334 } 335 336 /* 337 * Device access 338 */ 339 340 static void 341 pseye_init(struct pseye_softc *sc) 342 { 343 pseye_sccb_init(sc); 344 345 pseye_setregv(sc, 0xc2, 0x0c); 346 pseye_setregv(sc, 0x88, 0xf8); 347 pseye_setregv(sc, 0xc3, 0x69); 348 pseye_setregv(sc, 0x89, 0xff); 349 pseye_setregv(sc, 0x76, 0x03); 350 pseye_setregv(sc, 0x92, 0x01); 351 pseye_setregv(sc, 0x93, 0x18); 352 pseye_setregv(sc, 0x94, 0x10); 353 pseye_setregv(sc, 0x95, 0x10); 354 pseye_setregv(sc, 0xe2, 0x00); 355 pseye_setregv(sc, 0xe7, 0x3e); 356 357 pseye_setregv(sc, 0x96, 0x00); 358 359 pseye_setreg(sc, 0x97, 0x20); 360 pseye_setreg(sc, 0x97, 0x20); 361 pseye_setreg(sc, 0x97, 0x20); 362 pseye_setreg(sc, 0x97, 0x0a); 363 pseye_setreg(sc, 0x97, 0x3f); 364 pseye_setreg(sc, 0x97, 0x4a); 365 pseye_setreg(sc, 0x97, 0x20); 366 pseye_setreg(sc, 0x97, 0x15); 367 pseye_setreg(sc, 0x97, 0x0b); 368 369 pseye_setregv(sc, 0x8e, 0x40); 370 pseye_setregv(sc, 0x1f, 0x81); 371 pseye_setregv(sc, 0x34, 0x05); 372 pseye_setregv(sc, 0xe3, 0x04); 373 pseye_setregv(sc, 0x88, 0x00); 374 pseye_setregv(sc, 0x89, 0x00); 375 pseye_setregv(sc, 0x76, 0x00); 376 pseye_setregv(sc, 0xe7, 0x2e); 377 pseye_setregv(sc, 0x31, 0xf9); 378 pseye_setregv(sc, 0x25, 0x42); 379 pseye_setregv(sc, 0x21, 0xf0); 380 381 pseye_setreg(sc, 0x1c, 0x00); 382 pseye_setreg(sc, 0x1d, 0x40); 383 pseye_setreg(sc, 0x1d, 0x02); /* payload size 0x0200 * 4 == 2048 */ 384 pseye_setreg(sc, 0x1d, 0x00); 385 pseye_setreg(sc, 0x1d, 0x02); /* frame size 0x025800 * 4 == 614400 */ 386 pseye_setreg(sc, 0x1d, 0x58); 387 pseye_setreg(sc, 0x1d, 0x00); 388 389 pseye_setreg(sc, 0x1c, 0x0a); 390 pseye_setreg(sc, 0x1d, 0x08); /* enable UVC header */ 391 pseye_setreg(sc, 0x1d, 0x0e); 392 393 pseye_setregv(sc, 0x8d, 0x1c); 394 pseye_setregv(sc, 0x8e, 0x80); 395 pseye_setregv(sc, 0xe5, 0x04); 396 397 pseye_sccb_setreg(sc, 0x12, 0x80); 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 pseye_sccb_setreg(sc, 0x11, 0x01); 405 pseye_sccb_setreg(sc, 0x11, 0x01); 406 pseye_sccb_setreg(sc, 0x11, 0x01); 407 pseye_sccb_setreg(sc, 0x11, 0x01); 408 pseye_sccb_setreg(sc, 0x11, 0x01); 409 410 pseye_sccb_setreg(sc, 0x3d, 0x03); 411 pseye_sccb_setreg(sc, 0x17, 0x26); 412 pseye_sccb_setreg(sc, 0x18, 0xa0); 413 pseye_sccb_setreg(sc, 0x19, 0x07); 414 pseye_sccb_setreg(sc, 0x1a, 0xf0); 415 pseye_sccb_setreg(sc, 0x32, 0x00); 416 pseye_sccb_setreg(sc, 0x29, 0xa0); 417 pseye_sccb_setreg(sc, 0x2c, 0xf0); 418 pseye_sccb_setreg(sc, 0x65, 0x20); 419 pseye_sccb_setreg(sc, 0x11, 0x01); 420 pseye_sccb_setreg(sc, 0x42, 0x7f); 421 pseye_sccb_setreg(sc, 0x63, 0xe0); 422 pseye_sccb_setreg(sc, 0x64, 0xff); 423 pseye_sccb_setreg(sc, 0x66, 0x00); 424 pseye_sccb_setreg(sc, 0x13, 0xf0); 425 pseye_sccb_setreg(sc, 0x0d, 0x41); 426 pseye_sccb_setreg(sc, 0x0f, 0xc5); 427 pseye_sccb_setreg(sc, 0x14, 0x11); 428 429 pseye_sccb_setreg(sc, 0x22, 0x7f); 430 pseye_sccb_setreg(sc, 0x23, 0x03); 431 pseye_sccb_setreg(sc, 0x24, 0x40); 432 pseye_sccb_setreg(sc, 0x25, 0x30); 433 pseye_sccb_setreg(sc, 0x26, 0xa1); 434 pseye_sccb_setreg(sc, 0x2a, 0x00); 435 pseye_sccb_setreg(sc, 0x2b, 0x00); 436 pseye_sccb_setreg(sc, 0x6b, 0xaa); 437 pseye_sccb_setreg(sc, 0x13, 0xff); 438 439 pseye_sccb_setreg(sc, 0x90, 0x05); 440 pseye_sccb_setreg(sc, 0x91, 0x01); 441 pseye_sccb_setreg(sc, 0x92, 0x03); 442 pseye_sccb_setreg(sc, 0x93, 0x00); 443 pseye_sccb_setreg(sc, 0x94, 0x60); 444 pseye_sccb_setreg(sc, 0x95, 0x3c); 445 pseye_sccb_setreg(sc, 0x96, 0x24); 446 pseye_sccb_setreg(sc, 0x97, 0x1e); 447 pseye_sccb_setreg(sc, 0x98, 0x62); 448 pseye_sccb_setreg(sc, 0x99, 0x80); 449 pseye_sccb_setreg(sc, 0x9a, 0x1e); 450 pseye_sccb_setreg(sc, 0x9b, 0x08); 451 pseye_sccb_setreg(sc, 0x9c, 0x20); 452 pseye_sccb_setreg(sc, 0x9e, 0x81); 453 454 pseye_sccb_setreg(sc, 0xa6, 0x04); 455 pseye_sccb_setreg(sc, 0x7e, 0x0c); 456 pseye_sccb_setreg(sc, 0x7f, 0x16); 457 458 pseye_sccb_setreg(sc, 0x80, 0x2a); 459 pseye_sccb_setreg(sc, 0x81, 0x4e); 460 pseye_sccb_setreg(sc, 0x82, 0x61); 461 pseye_sccb_setreg(sc, 0x83, 0x6f); 462 pseye_sccb_setreg(sc, 0x84, 0x7b); 463 pseye_sccb_setreg(sc, 0x85, 0x86); 464 pseye_sccb_setreg(sc, 0x86, 0x8e); 465 pseye_sccb_setreg(sc, 0x87, 0x97); 466 pseye_sccb_setreg(sc, 0x88, 0xa4); 467 pseye_sccb_setreg(sc, 0x89, 0xaf); 468 pseye_sccb_setreg(sc, 0x8a, 0xc5); 469 pseye_sccb_setreg(sc, 0x8b, 0xd7); 470 pseye_sccb_setreg(sc, 0x8c, 0xe8); 471 pseye_sccb_setreg(sc, 0x8d, 0x20); 472 473 pseye_sccb_setreg(sc, 0x0c, 0x90); 474 475 pseye_setregv(sc, 0xc0, 0x50); 476 pseye_setregv(sc, 0xc1, 0x3c); 477 pseye_setregv(sc, 0xc2, 0x0c); 478 479 pseye_sccb_setreg(sc, 0x2b, 0x00); 480 pseye_sccb_setreg(sc, 0x22, 0x7f); 481 pseye_sccb_setreg(sc, 0x23, 0x03); 482 pseye_sccb_setreg(sc, 0x11, 0x01); 483 pseye_sccb_setreg(sc, 0x0c, 0xd0); 484 pseye_sccb_setreg(sc, 0x64, 0xff); 485 pseye_sccb_setreg(sc, 0x0d, 0x41); 486 487 pseye_sccb_setreg(sc, 0x14, 0x41); 488 pseye_sccb_setreg(sc, 0x0e, 0xcd); 489 pseye_sccb_setreg(sc, 0xac, 0xbf); 490 pseye_sccb_setreg(sc, 0x8e, 0x00); 491 pseye_sccb_setreg(sc, 0x0c, 0xd0); 492 493 pseye_stop(sc); 494 } 495 496 static void 497 pseye_sccb_init(struct pseye_softc *sc) 498 { 499 pseye_setregv(sc, 0xe7, 0x3a); 500 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 501 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 502 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 503 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42); 504 } 505 506 static void 507 pseye_stop(struct pseye_softc *sc) 508 { 509 pseye_led(sc, false); 510 pseye_setreg(sc, 0xe0, 0x09); 511 } 512 513 static void 514 pseye_start(struct pseye_softc *sc) 515 { 516 pseye_led(sc, true); 517 pseye_setreg(sc, 0xe0, 0x00); 518 } 519 520 static void 521 pseye_led(struct pseye_softc *sc, bool enabled) 522 { 523 uint8_t val; 524 525 val = pseye_getreg(sc, 0x21); 526 pseye_setreg(sc, 0x21, val | 0x80); 527 528 val = pseye_getreg(sc, 0x23); 529 if (enabled == true) 530 val |= 0x80; 531 else 532 val &= ~0x80; 533 pseye_setreg(sc, 0x23, val); 534 } 535 536 static uint8_t 537 pseye_getreg(struct pseye_softc *sc, uint16_t reg) 538 { 539 usb_device_request_t req; 540 usbd_status err; 541 uint8_t buf; 542 543 req.bmRequestType = UT_READ_VENDOR_DEVICE; 544 req.bRequest = 1; 545 USETW(req.wValue, 0x0000); 546 USETW(req.wIndex, reg); 547 USETW(req.wLength, 1); 548 549 err = usbd_do_request(sc->sc_udev, &req, &buf); 550 if (err) { 551 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n", 552 reg, usbd_errstr(err)); 553 return 0xff; 554 } 555 556 return buf; 557 } 558 559 static void 560 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val) 561 { 562 usb_device_request_t req; 563 usbd_status err; 564 565 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 566 req.bRequest = 1; 567 USETW(req.wValue, 0x0000); 568 USETW(req.wIndex, reg); 569 USETW(req.wLength, 1); 570 571 err = usbd_do_request(sc->sc_udev, &req, &val); 572 if (err) 573 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n", 574 reg, usbd_errstr(err)); 575 } 576 577 static void 578 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val) 579 { 580 pseye_setreg(sc, reg, val); 581 if (pseye_getreg(sc, reg) != val) 582 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n", 583 reg); 584 } 585 586 static void 587 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val) 588 { 589 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg); 590 pseye_setreg(sc, PSEYE_SCCB_WRITE, val); 591 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3); 592 593 if (pseye_sccb_status(sc) == false) 594 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n", 595 reg); 596 } 597 598 static bool 599 pseye_sccb_status(struct pseye_softc *sc) 600 { 601 int retry = 5; 602 uint8_t reg; 603 604 while (retry-- >= 0) { 605 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS); 606 if (reg == 0x00) 607 return true; 608 else if (reg == 0x04) 609 return false; 610 } 611 612 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n"); 613 return false; 614 } 615 616 static usbd_status 617 pseye_get_frame(struct pseye_softc *sc, uint32_t *plen) 618 { 619 if (sc->sc_dying) 620 return USBD_IOERROR; 621 622 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, 623 USBD_SHORT_XFER_OK|USBD_NO_COPY, 1000, 624 sc->sc_bulkin_buffer, plen, "pseyerb"); 625 } 626 627 static int 628 pseye_init_pipes(struct pseye_softc *sc) 629 { 630 usbd_status err; 631 632 if (sc->sc_dying) 633 return EIO; 634 635 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0, 636 &sc->sc_bulkin_pipe); 637 if (err) { 638 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 639 usbd_errstr(err)); 640 return ENOMEM; 641 } 642 643 pseye_start(sc); 644 645 return 0; 646 } 647 648 int 649 pseye_close_pipes(struct pseye_softc *sc) 650 { 651 if (sc->sc_bulkin_pipe != NULL) { 652 usbd_abort_pipe(sc->sc_bulkin_pipe); 653 usbd_close_pipe(sc->sc_bulkin_pipe); 654 sc->sc_bulkin_pipe = NULL; 655 } 656 657 pseye_stop(sc); 658 659 return 0; 660 } 661 662 static void 663 pseye_submit_payload(struct pseye_softc *sc, uint32_t tlen) 664 { 665 struct video_payload payload; 666 uvideo_payload_header_t *uvchdr; 667 uint8_t *buf = sc->sc_bulkin_buffer; 668 uint32_t len; 669 uint32_t brem = (640*480*2); 670 671 while (brem > 0 && tlen > 0) { 672 len = min(tlen, PSEYE_BULKIN_BLKLEN); 673 if (len < UVIDEO_PAYLOAD_HEADER_SIZE) { 674 printf("pseye_submit_payload: len=%u\n", len); 675 return; 676 } 677 678 uvchdr = (uvideo_payload_header_t *)buf; 679 if (uvchdr->bHeaderLength != UVIDEO_PAYLOAD_HEADER_SIZE) 680 goto next; 681 if (uvchdr->bHeaderLength == len && 682 !(uvchdr->bmHeaderInfo & UV_END_OF_FRAME)) 683 goto next; 684 if (uvchdr->bmHeaderInfo & UV_ERROR) 685 return; 686 if ((uvchdr->bmHeaderInfo & UV_PRES_TIME) == 0) 687 goto next; 688 689 payload.data = buf + uvchdr->bHeaderLength; 690 payload.size = min(brem, len - uvchdr->bHeaderLength); 691 payload.frameno = UGETDW(&buf[2]); 692 payload.end_of_frame = uvchdr->bmHeaderInfo & UV_END_OF_FRAME; 693 video_submit_payload(sc->sc_videodev, &payload); 694 695 next: 696 tlen -= len; 697 buf += len; 698 brem -= payload.size; 699 } 700 } 701 702 static void 703 pseye_transfer_thread(void *opaque) 704 { 705 struct pseye_softc *sc = opaque; 706 uint32_t len; 707 int error; 708 709 while (sc->sc_running) { 710 len = sc->sc_bulkin_bufferlen; 711 error = pseye_get_frame(sc, &len); 712 if (error == USBD_NORMAL_COMPLETION) 713 pseye_submit_payload(sc, len); 714 } 715 716 mutex_enter(&sc->sc_mtx); 717 cv_broadcast(&sc->sc_cv); 718 mutex_exit(&sc->sc_mtx); 719 720 kthread_exit(0); 721 } 722 723 /* video(9) API implementations */ 724 static int 725 pseye_open(void *opaque, int flags) 726 { 727 struct pseye_softc *sc = opaque; 728 729 if (sc->sc_dying) 730 return EIO; 731 732 return pseye_init_pipes(sc); 733 } 734 735 static void 736 pseye_close(void *opaque) 737 { 738 struct pseye_softc *sc = opaque; 739 740 pseye_close_pipes(sc); 741 } 742 743 static const char * 744 pseye_get_devname(void *opaque) 745 { 746 return "PlayStation Eye"; 747 } 748 749 static int 750 pseye_enum_format(void *opaque, uint32_t index, struct video_format *format) 751 { 752 if (index != 0) 753 return EINVAL; 754 return pseye_get_format(opaque, format); 755 } 756 757 static int 758 pseye_get_format(void *opaque, struct video_format *format) 759 { 760 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */ 761 format->width = 640; 762 format->height = 480; 763 format->aspect_x = 4; 764 format->aspect_y = 3; 765 format->sample_size = format->width * format->height * 2; 766 format->stride = format->width * 2; 767 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED; 768 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; 769 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; 770 format->interlace_flags = VIDEO_INTERLACE_ON; 771 format->priv = 0; 772 773 return 0; 774 } 775 776 static int 777 pseye_set_format(void *opaque, struct video_format *format) 778 { 779 #if notyet 780 if (format->pixel_format != VIDEO_FORMAT_YUYV) 781 return EINVAL; 782 if (format->width != 640 || format->height != 480) 783 return EINVAL; 784 #endif 785 /* XXX */ 786 return pseye_get_format(opaque, format); 787 } 788 789 static int 790 pseye_try_format(void *opaque, struct video_format *format) 791 { 792 return pseye_get_format(opaque, format); 793 } 794 795 static int 796 pseye_start_transfer(void *opaque) 797 { 798 struct pseye_softc *sc = opaque; 799 int err = 0; 800 801 mutex_enter(&sc->sc_mtx); 802 if (sc->sc_running == 0) { 803 sc->sc_running = 1; 804 err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread, 805 opaque, NULL, device_xname(sc->sc_dev)); 806 } else 807 aprint_error_dev(sc->sc_dev, "transfer already in progress\n"); 808 mutex_exit(&sc->sc_mtx); 809 810 return err; 811 } 812 813 static int 814 pseye_stop_transfer(void *opaque) 815 { 816 struct pseye_softc *sc = opaque; 817 818 mutex_enter(&sc->sc_mtx); 819 if (sc->sc_running) { 820 sc->sc_running = 0; 821 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 822 } 823 mutex_exit(&sc->sc_mtx); 824 825 return 0; 826 } 827 828 #ifdef _MODULE 829 830 MODULE(MODULE_CLASS_DRIVER, pseye, NULL); 831 832 static const struct cfiattrdata videobuscf_iattrdata = { 833 "videobus", 0, { { NULL, NULL, 0 }, } 834 }; 835 static const struct cfiattrdata * const pseye_attrs[] = { 836 &videobuscf_iattrdata, NULL 837 }; 838 CFDRIVER_DECL(pseye, DV_DULL, pseye_attrs); 839 extern struct cfattach video_ca; 840 static int pseyeloc[6] = { -1, -1, -1, -1, -1, -1 }; 841 static struct cfparent uhubparent = { 842 "usbifif", NULL, DVUNIT_ANY 843 }; 844 static struct cfdata pseye_cfdata[] = { 845 { 846 .cf_name = "pseye", 847 .cf_atname = "pseye", 848 .cf_unit = 0, 849 .cf_fstate = FSTATE_STAR, 850 .cf_loc = pseyeloc, 851 .cf_flags = 0, 852 .cf_pspec = &uhubparent, 853 }, 854 { NULL } 855 }; 856 857 static int 858 pseye_modcmd(modcmd_t cmd, void *opaque) 859 { 860 int err; 861 862 switch (cmd) { 863 case MODULE_CMD_INIT: 864 err = config_cfdriver_attach(&pseye_cd); 865 if (err) 866 return err; 867 err = config_cfattach_attach("pseye", &pseye_ca); 868 if (err) { 869 config_cfdriver_detach(&pseye_cd); 870 return err; 871 } 872 err = config_cfdata_attach(pseye_cfdata, 1); 873 if (err) { 874 config_cfattach_detach("pseye", &pseye_ca); 875 config_cfdriver_detach(&pseye_cd); 876 return err; 877 } 878 return 0; 879 case MODULE_CMD_FINI: 880 err = config_cfdata_detach(pseye_cfdata); 881 if (err) 882 return err; 883 config_cfattach_detach("pseye", &pseye_ca); 884 config_cfdriver_detach(&pseye_cd); 885 return 0; 886 default: 887 return ENOTTY; 888 } 889 } 890 891 #endif /* !_MODULE */ 892
Indexes created Thu Oct 02 10:09:58 GMT 2025