pseye.c revision 1.21.34.4
1 /* $NetBSD: pseye.c,v 1.21.34.4 2014/12/03 22:33:56 skrll 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 1.21.34.4 2014/12/03 22:33:56 skrll 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 usbd_device_handle sc_udev; 85 usbd_interface_handle 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 usbd_pipe_handle sc_bulkin_pipe; 94 usbd_xfer_handle 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_start_transfer(void *); 138 static int pseye_stop_transfer(void *); 139 140 CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc), 141 pseye_match, pseye_attach, pseye_detach, pseye_activate, 142 NULL, pseye_childdet); 143 144 static const struct video_hw_if pseye_hw_if = { 145 .open = pseye_open, 146 .close = pseye_close, 147 .get_devname = pseye_get_devname, 148 .get_businfo = pseye_get_businfo, 149 .enum_format = pseye_enum_format, 150 .get_format = pseye_get_format, 151 .set_format = pseye_set_format, 152 .try_format = pseye_try_format, 153 .start_transfer = pseye_start_transfer, 154 .stop_transfer = pseye_stop_transfer, 155 .control_iter_init = NULL, 156 .control_iter_next = NULL, 157 .get_control_desc_group = NULL, 158 .get_control_group = NULL, 159 .set_control_group = NULL, 160 }; 161 162 static int 163 pseye_match(device_t parent, cfdata_t match, void *opaque) 164 { 165 struct usbif_attach_arg *uaa = opaque; 166 167 if (uaa->class != UICLASS_VENDOR) 168 return UMATCH_NONE; 169 170 if (uaa->vendor == USB_VENDOR_OMNIVISION2) { 171 switch (uaa->product) { 172 case USB_PRODUCT_OMNIVISION2_PSEYE: 173 if (uaa->ifaceno != 0) 174 return UMATCH_NONE; 175 return UMATCH_VENDOR_PRODUCT; 176 } 177 } 178 179 return UMATCH_NONE; 180 } 181 182 static void 183 pseye_attach(device_t parent, device_t self, void *opaque) 184 { 185 struct pseye_softc *sc = device_private(self); 186 struct usbif_attach_arg *uaa = opaque; 187 usbd_device_handle dev = uaa->device; 188 usb_interface_descriptor_t *id = NULL; 189 usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL; 190 char *devinfop; 191 int i; 192 193 aprint_naive("\n"); 194 aprint_normal("\n"); 195 196 devinfop = usbd_devinfo_alloc(dev, 0); 197 aprint_normal_dev(self, "%s\n", devinfop); 198 usbd_devinfo_free(devinfop); 199 200 sc->sc_dev = self; 201 sc->sc_udev = dev; 202 sc->sc_iface = uaa->iface; 203 snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x", 204 sc->sc_udev->ud_cookie.cookie); 205 sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN; 206 207 sc->sc_dying = sc->sc_running = 0; 208 cv_init(&sc->sc_cv, device_xname(self)); 209 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 210 211 id = usbd_get_interface_descriptor(sc->sc_iface); 212 if (id == NULL) { 213 aprint_error_dev(self, "failed to get interface descriptor\n"); 214 sc->sc_dying = 1; 215 return; 216 } 217 218 for (i = 0; i < id->bNumEndpoints; i++) { 219 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 220 if (ed == NULL) { 221 aprint_error_dev(self, "couldn't get ep %d\n", i); 222 sc->sc_dying = 1; 223 return; 224 } 225 226 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 227 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 228 ed_bulkin = ed; 229 break; 230 } 231 } 232 233 if (ed_bulkin == NULL) { 234 aprint_error_dev(self, "no bulk-in endpoint found\n"); 235 sc->sc_dying = 1; 236 return; 237 } 238 239 sc->sc_bulkin = ed_bulkin->bEndpointAddress; 240 241 sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev); 242 if (sc->sc_bulkin_xfer == NULL) { 243 sc->sc_dying = 1; 244 return; 245 } 246 sc->sc_bulkin_buffer = usbd_alloc_buffer(sc->sc_bulkin_xfer, 247 sc->sc_bulkin_bufferlen); 248 if (sc->sc_bulkin_buffer == NULL) { 249 usbd_free_xfer(sc->sc_bulkin_xfer); 250 sc->sc_bulkin_xfer = NULL; 251 sc->sc_dying = 1; 252 return; 253 } 254 255 pseye_init(sc); 256 257 if (!pmf_device_register(self, NULL, NULL)) 258 aprint_error_dev(self, "couldn't establish power handler\n"); 259 260 sc->sc_videodev = video_attach_mi(&pseye_hw_if, self); 261 if (sc->sc_videodev == NULL) { 262 aprint_error_dev(self, "couldn't attach video layer\n"); 263 sc->sc_dying = 1; 264 return; 265 } 266 267 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 268 self); 269 270 } 271 272 static int 273 pseye_detach(device_t self, int flags) 274 { 275 struct pseye_softc *sc = device_private(self); 276 277 sc->sc_dying = 1; 278 279 pmf_device_deregister(self); 280 281 if (sc->sc_videodev != NULL) { 282 config_detach(sc->sc_videodev, flags); 283 sc->sc_videodev = NULL; 284 } 285 286 if (sc->sc_bulkin_xfer != NULL) { 287 usbd_free_xfer(sc->sc_bulkin_xfer); 288 sc->sc_bulkin_xfer = NULL; 289 } 290 291 if (sc->sc_bulkin_pipe != NULL) { 292 usbd_abort_pipe(sc->sc_bulkin_pipe); 293 sc->sc_bulkin_pipe = NULL; 294 } 295 296 mutex_enter(&sc->sc_mtx); 297 if (sc->sc_running) { 298 sc->sc_running = 0; 299 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 300 } 301 mutex_exit(&sc->sc_mtx); 302 303 cv_destroy(&sc->sc_cv); 304 mutex_destroy(&sc->sc_mtx); 305 306 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 307 sc->sc_dev); 308 309 return 0; 310 } 311 312 int 313 pseye_activate(device_t self, enum devact act) 314 { 315 struct pseye_softc *sc = device_private(self); 316 317 switch (act) { 318 case DVACT_DEACTIVATE: 319 sc->sc_dying = 1; 320 return 0; 321 default: 322 return EOPNOTSUPP; 323 } 324 } 325 326 static void 327 pseye_childdet(device_t self, device_t child) 328 { 329 struct pseye_softc *sc = device_private(self); 330 331 if (sc->sc_videodev) { 332 KASSERT(sc->sc_videodev == child); 333 sc->sc_videodev = NULL; 334 } 335 } 336 337 /* 338 * Device access 339 */ 340 341 static void 342 pseye_init(struct pseye_softc *sc) 343 { 344 pseye_sccb_init(sc); 345 346 pseye_setregv(sc, 0xc2, 0x0c); 347 pseye_setregv(sc, 0x88, 0xf8); 348 pseye_setregv(sc, 0xc3, 0x69); 349 pseye_setregv(sc, 0x89, 0xff); 350 pseye_setregv(sc, 0x76, 0x03); 351 pseye_setregv(sc, 0x92, 0x01); 352 pseye_setregv(sc, 0x93, 0x18); 353 pseye_setregv(sc, 0x94, 0x10); 354 pseye_setregv(sc, 0x95, 0x10); 355 pseye_setregv(sc, 0xe2, 0x00); 356 pseye_setregv(sc, 0xe7, 0x3e); 357 358 pseye_setregv(sc, 0x96, 0x00); 359 360 pseye_setreg(sc, 0x97, 0x20); 361 pseye_setreg(sc, 0x97, 0x20); 362 pseye_setreg(sc, 0x97, 0x20); 363 pseye_setreg(sc, 0x97, 0x0a); 364 pseye_setreg(sc, 0x97, 0x3f); 365 pseye_setreg(sc, 0x97, 0x4a); 366 pseye_setreg(sc, 0x97, 0x20); 367 pseye_setreg(sc, 0x97, 0x15); 368 pseye_setreg(sc, 0x97, 0x0b); 369 370 pseye_setregv(sc, 0x8e, 0x40); 371 pseye_setregv(sc, 0x1f, 0x81); 372 pseye_setregv(sc, 0x34, 0x05); 373 pseye_setregv(sc, 0xe3, 0x04); 374 pseye_setregv(sc, 0x88, 0x00); 375 pseye_setregv(sc, 0x89, 0x00); 376 pseye_setregv(sc, 0x76, 0x00); 377 pseye_setregv(sc, 0xe7, 0x2e); 378 pseye_setregv(sc, 0x31, 0xf9); 379 pseye_setregv(sc, 0x25, 0x42); 380 pseye_setregv(sc, 0x21, 0xf0); 381 382 pseye_setreg(sc, 0x1c, 0x00); 383 pseye_setreg(sc, 0x1d, 0x40); 384 pseye_setreg(sc, 0x1d, 0x02); /* payload size 0x0200 * 4 == 2048 */ 385 pseye_setreg(sc, 0x1d, 0x00); 386 pseye_setreg(sc, 0x1d, 0x02); /* frame size 0x025800 * 4 == 614400 */ 387 pseye_setreg(sc, 0x1d, 0x58); 388 pseye_setreg(sc, 0x1d, 0x00); 389 390 pseye_setreg(sc, 0x1c, 0x0a); 391 pseye_setreg(sc, 0x1d, 0x08); /* enable UVC header */ 392 pseye_setreg(sc, 0x1d, 0x0e); 393 394 pseye_setregv(sc, 0x8d, 0x1c); 395 pseye_setregv(sc, 0x8e, 0x80); 396 pseye_setregv(sc, 0xe5, 0x04); 397 398 pseye_sccb_setreg(sc, 0x12, 0x80); 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 pseye_sccb_setreg(sc, 0x11, 0x01); 410 411 pseye_sccb_setreg(sc, 0x3d, 0x03); 412 pseye_sccb_setreg(sc, 0x17, 0x26); 413 pseye_sccb_setreg(sc, 0x18, 0xa0); 414 pseye_sccb_setreg(sc, 0x19, 0x07); 415 pseye_sccb_setreg(sc, 0x1a, 0xf0); 416 pseye_sccb_setreg(sc, 0x32, 0x00); 417 pseye_sccb_setreg(sc, 0x29, 0xa0); 418 pseye_sccb_setreg(sc, 0x2c, 0xf0); 419 pseye_sccb_setreg(sc, 0x65, 0x20); 420 pseye_sccb_setreg(sc, 0x11, 0x01); 421 pseye_sccb_setreg(sc, 0x42, 0x7f); 422 pseye_sccb_setreg(sc, 0x63, 0xe0); 423 pseye_sccb_setreg(sc, 0x64, 0xff); 424 pseye_sccb_setreg(sc, 0x66, 0x00); 425 pseye_sccb_setreg(sc, 0x13, 0xf0); 426 pseye_sccb_setreg(sc, 0x0d, 0x41); 427 pseye_sccb_setreg(sc, 0x0f, 0xc5); 428 pseye_sccb_setreg(sc, 0x14, 0x11); 429 430 pseye_sccb_setreg(sc, 0x22, 0x7f); 431 pseye_sccb_setreg(sc, 0x23, 0x03); 432 pseye_sccb_setreg(sc, 0x24, 0x40); 433 pseye_sccb_setreg(sc, 0x25, 0x30); 434 pseye_sccb_setreg(sc, 0x26, 0xa1); 435 pseye_sccb_setreg(sc, 0x2a, 0x00); 436 pseye_sccb_setreg(sc, 0x2b, 0x00); 437 pseye_sccb_setreg(sc, 0x6b, 0xaa); 438 pseye_sccb_setreg(sc, 0x13, 0xff); 439 440 pseye_sccb_setreg(sc, 0x90, 0x05); 441 pseye_sccb_setreg(sc, 0x91, 0x01); 442 pseye_sccb_setreg(sc, 0x92, 0x03); 443 pseye_sccb_setreg(sc, 0x93, 0x00); 444 pseye_sccb_setreg(sc, 0x94, 0x60); 445 pseye_sccb_setreg(sc, 0x95, 0x3c); 446 pseye_sccb_setreg(sc, 0x96, 0x24); 447 pseye_sccb_setreg(sc, 0x97, 0x1e); 448 pseye_sccb_setreg(sc, 0x98, 0x62); 449 pseye_sccb_setreg(sc, 0x99, 0x80); 450 pseye_sccb_setreg(sc, 0x9a, 0x1e); 451 pseye_sccb_setreg(sc, 0x9b, 0x08); 452 pseye_sccb_setreg(sc, 0x9c, 0x20); 453 pseye_sccb_setreg(sc, 0x9e, 0x81); 454 455 pseye_sccb_setreg(sc, 0xa6, 0x04); 456 pseye_sccb_setreg(sc, 0x7e, 0x0c); 457 pseye_sccb_setreg(sc, 0x7f, 0x16); 458 459 pseye_sccb_setreg(sc, 0x80, 0x2a); 460 pseye_sccb_setreg(sc, 0x81, 0x4e); 461 pseye_sccb_setreg(sc, 0x82, 0x61); 462 pseye_sccb_setreg(sc, 0x83, 0x6f); 463 pseye_sccb_setreg(sc, 0x84, 0x7b); 464 pseye_sccb_setreg(sc, 0x85, 0x86); 465 pseye_sccb_setreg(sc, 0x86, 0x8e); 466 pseye_sccb_setreg(sc, 0x87, 0x97); 467 pseye_sccb_setreg(sc, 0x88, 0xa4); 468 pseye_sccb_setreg(sc, 0x89, 0xaf); 469 pseye_sccb_setreg(sc, 0x8a, 0xc5); 470 pseye_sccb_setreg(sc, 0x8b, 0xd7); 471 pseye_sccb_setreg(sc, 0x8c, 0xe8); 472 pseye_sccb_setreg(sc, 0x8d, 0x20); 473 474 pseye_sccb_setreg(sc, 0x0c, 0x90); 475 476 pseye_setregv(sc, 0xc0, 0x50); 477 pseye_setregv(sc, 0xc1, 0x3c); 478 pseye_setregv(sc, 0xc2, 0x0c); 479 480 pseye_sccb_setreg(sc, 0x2b, 0x00); 481 pseye_sccb_setreg(sc, 0x22, 0x7f); 482 pseye_sccb_setreg(sc, 0x23, 0x03); 483 pseye_sccb_setreg(sc, 0x11, 0x01); 484 pseye_sccb_setreg(sc, 0x0c, 0xd0); 485 pseye_sccb_setreg(sc, 0x64, 0xff); 486 pseye_sccb_setreg(sc, 0x0d, 0x41); 487 488 pseye_sccb_setreg(sc, 0x14, 0x41); 489 pseye_sccb_setreg(sc, 0x0e, 0xcd); 490 pseye_sccb_setreg(sc, 0xac, 0xbf); 491 pseye_sccb_setreg(sc, 0x8e, 0x00); 492 pseye_sccb_setreg(sc, 0x0c, 0xd0); 493 494 pseye_stop(sc); 495 } 496 497 static void 498 pseye_sccb_init(struct pseye_softc *sc) 499 { 500 pseye_setregv(sc, 0xe7, 0x3a); 501 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 502 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 503 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 504 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42); 505 } 506 507 static void 508 pseye_stop(struct pseye_softc *sc) 509 { 510 pseye_led(sc, false); 511 pseye_setreg(sc, 0xe0, 0x09); 512 } 513 514 static void 515 pseye_start(struct pseye_softc *sc) 516 { 517 pseye_led(sc, true); 518 pseye_setreg(sc, 0xe0, 0x00); 519 } 520 521 static void 522 pseye_led(struct pseye_softc *sc, bool enabled) 523 { 524 uint8_t val; 525 526 val = pseye_getreg(sc, 0x21); 527 pseye_setreg(sc, 0x21, val | 0x80); 528 529 val = pseye_getreg(sc, 0x23); 530 if (enabled == true) 531 val |= 0x80; 532 else 533 val &= ~0x80; 534 pseye_setreg(sc, 0x23, val); 535 } 536 537 static uint8_t 538 pseye_getreg(struct pseye_softc *sc, uint16_t reg) 539 { 540 usb_device_request_t req; 541 usbd_status err; 542 uint8_t buf; 543 544 req.bmRequestType = UT_READ_VENDOR_DEVICE; 545 req.bRequest = 1; 546 USETW(req.wValue, 0x0000); 547 USETW(req.wIndex, reg); 548 USETW(req.wLength, 1); 549 550 err = usbd_do_request(sc->sc_udev, &req, &buf); 551 if (err) { 552 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n", 553 reg, usbd_errstr(err)); 554 return 0xff; 555 } 556 557 return buf; 558 } 559 560 static void 561 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val) 562 { 563 usb_device_request_t req; 564 usbd_status err; 565 566 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 567 req.bRequest = 1; 568 USETW(req.wValue, 0x0000); 569 USETW(req.wIndex, reg); 570 USETW(req.wLength, 1); 571 572 err = usbd_do_request(sc->sc_udev, &req, &val); 573 if (err) 574 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n", 575 reg, usbd_errstr(err)); 576 } 577 578 static void 579 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val) 580 { 581 pseye_setreg(sc, reg, val); 582 if (pseye_getreg(sc, reg) != val) 583 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n", 584 reg); 585 } 586 587 static void 588 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val) 589 { 590 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg); 591 pseye_setreg(sc, PSEYE_SCCB_WRITE, val); 592 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3); 593 594 if (pseye_sccb_status(sc) == false) 595 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n", 596 reg); 597 } 598 599 static bool 600 pseye_sccb_status(struct pseye_softc *sc) 601 { 602 int retry = 5; 603 uint8_t reg; 604 605 while (retry-- >= 0) { 606 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS); 607 if (reg == 0x00) 608 return true; 609 else if (reg == 0x04) 610 return false; 611 } 612 613 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n"); 614 return false; 615 } 616 617 static usbd_status 618 pseye_get_frame(struct pseye_softc *sc, uint32_t *plen) 619 { 620 if (sc->sc_dying) 621 return USBD_IOERROR; 622 623 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, 624 USBD_SHORT_XFER_OK, 1000, 625 sc->sc_bulkin_buffer, plen); 626 } 627 628 static int 629 pseye_init_pipes(struct pseye_softc *sc) 630 { 631 usbd_status err; 632 633 if (sc->sc_dying) 634 return EIO; 635 636 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0, 637 &sc->sc_bulkin_pipe); 638 if (err) { 639 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 640 usbd_errstr(err)); 641 return ENOMEM; 642 } 643 644 pseye_start(sc); 645 646 return 0; 647 } 648 649 int 650 pseye_close_pipes(struct pseye_softc *sc) 651 { 652 if (sc->sc_bulkin_pipe != NULL) { 653 usbd_abort_pipe(sc->sc_bulkin_pipe); 654 usbd_close_pipe(sc->sc_bulkin_pipe); 655 sc->sc_bulkin_pipe = NULL; 656 } 657 658 pseye_stop(sc); 659 660 return 0; 661 } 662 663 static void 664 pseye_submit_payload(struct pseye_softc *sc, uint32_t tlen) 665 { 666 struct video_payload payload; 667 uvideo_payload_header_t *uvchdr; 668 uint8_t *buf = sc->sc_bulkin_buffer; 669 uint32_t len; 670 uint32_t brem = (640*480*2); 671 672 while (brem > 0 && tlen > 0) { 673 len = min(tlen, PSEYE_BULKIN_BLKLEN); 674 if (len < UVIDEO_PAYLOAD_HEADER_SIZE) { 675 printf("pseye_submit_payload: len=%u\n", len); 676 return; 677 } 678 679 uvchdr = (uvideo_payload_header_t *)buf; 680 if (uvchdr->bHeaderLength != UVIDEO_PAYLOAD_HEADER_SIZE) 681 goto next; 682 if (uvchdr->bHeaderLength == len && 683 !(uvchdr->bmHeaderInfo & UV_END_OF_FRAME)) 684 goto next; 685 if (uvchdr->bmHeaderInfo & UV_ERROR) 686 return; 687 if ((uvchdr->bmHeaderInfo & UV_PRES_TIME) == 0) 688 goto next; 689 690 payload.data = buf + uvchdr->bHeaderLength; 691 payload.size = min(brem, len - uvchdr->bHeaderLength); 692 payload.frameno = UGETDW(&buf[2]); 693 payload.end_of_frame = uvchdr->bmHeaderInfo & UV_END_OF_FRAME; 694 video_submit_payload(sc->sc_videodev, &payload); 695 696 next: 697 tlen -= len; 698 buf += len; 699 brem -= payload.size; 700 } 701 } 702 703 static void 704 pseye_transfer_thread(void *opaque) 705 { 706 struct pseye_softc *sc = opaque; 707 uint32_t len; 708 int error; 709 710 while (sc->sc_running) { 711 len = sc->sc_bulkin_bufferlen; 712 error = pseye_get_frame(sc, &len); 713 if (error == USBD_NORMAL_COMPLETION) 714 pseye_submit_payload(sc, len); 715 } 716 717 mutex_enter(&sc->sc_mtx); 718 cv_broadcast(&sc->sc_cv); 719 mutex_exit(&sc->sc_mtx); 720 721 kthread_exit(0); 722 } 723 724 /* video(9) API implementations */ 725 static int 726 pseye_open(void *opaque, int flags) 727 { 728 struct pseye_softc *sc = opaque; 729 730 if (sc->sc_dying) 731 return EIO; 732 733 return pseye_init_pipes(sc); 734 } 735 736 static void 737 pseye_close(void *opaque) 738 { 739 struct pseye_softc *sc = opaque; 740 741 pseye_close_pipes(sc); 742 } 743 744 static const char * 745 pseye_get_devname(void *opaque) 746 { 747 return "PlayStation Eye"; 748 } 749 750 static const char * 751 pseye_get_businfo(void *opaque) 752 { 753 struct pseye_softc *sc = opaque; 754 755 return sc->sc_businfo; 756 } 757 758 static int 759 pseye_enum_format(void *opaque, uint32_t index, struct video_format *format) 760 { 761 if (index != 0) 762 return EINVAL; 763 return pseye_get_format(opaque, format); 764 } 765 766 static int 767 pseye_get_format(void *opaque, struct video_format *format) 768 { 769 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */ 770 format->width = 640; 771 format->height = 480; 772 format->aspect_x = 4; 773 format->aspect_y = 3; 774 format->sample_size = format->width * format->height * 2; 775 format->stride = format->width * 2; 776 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED; 777 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; 778 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; 779 format->interlace_flags = VIDEO_INTERLACE_ON; 780 format->priv = 0; 781 782 return 0; 783 } 784 785 static int 786 pseye_set_format(void *opaque, struct video_format *format) 787 { 788 #if notyet 789 if (format->pixel_format != VIDEO_FORMAT_YUYV) 790 return EINVAL; 791 if (format->width != 640 || format->height != 480) 792 return EINVAL; 793 #endif 794 /* XXX */ 795 return pseye_get_format(opaque, format); 796 } 797 798 static int 799 pseye_try_format(void *opaque, struct video_format *format) 800 { 801 return pseye_get_format(opaque, format); 802 } 803 804 static int 805 pseye_start_transfer(void *opaque) 806 { 807 struct pseye_softc *sc = opaque; 808 int err = 0; 809 810 mutex_enter(&sc->sc_mtx); 811 if (sc->sc_running == 0) { 812 sc->sc_running = 1; 813 err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread, 814 opaque, NULL, "%s", device_xname(sc->sc_dev)); 815 } else 816 aprint_error_dev(sc->sc_dev, "transfer already in progress\n"); 817 mutex_exit(&sc->sc_mtx); 818 819 return err; 820 } 821 822 static int 823 pseye_stop_transfer(void *opaque) 824 { 825 struct pseye_softc *sc = opaque; 826 827 mutex_enter(&sc->sc_mtx); 828 if (sc->sc_running) { 829 sc->sc_running = 0; 830 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 831 } 832 mutex_exit(&sc->sc_mtx); 833 834 return 0; 835 } 836 837 MODULE(MODULE_CLASS_DRIVER, pseye, NULL); 838 839 #ifdef _MODULE 840 #include "ioconf.c" 841 #endif 842 843 static int 844 pseye_modcmd(modcmd_t cmd, void *opaque) 845 { 846 switch (cmd) { 847 case MODULE_CMD_INIT: 848 #ifdef _MODULE 849 return config_init_component(cfdriver_ioconf_pseye, 850 cfattach_ioconf_pseye, cfdata_ioconf_pseye); 851 #else 852 return 0; 853 #endif 854 case MODULE_CMD_FINI: 855 #ifdef _MODULE 856 return config_fini_component(cfdriver_ioconf_pseye, 857 cfattach_ioconf_pseye, cfdata_ioconf_pseye); 858 #else 859 return 0; 860 #endif 861 default: 862 return ENOTTY; 863 } 864 } 865
Indexes created Thu Oct 02 10:09:58 GMT 2025