pseye.c revision 1.22
1 /* $NetBSD: pseye.c,v 1.22 2016/04/23 10:15:32 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 1.22 2016/04/23 10:15:32 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 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_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 *uiaa = opaque; 166 167 if (uiaa->uiaa_class != UICLASS_VENDOR) 168 return UMATCH_NONE; 169 170 if (uiaa->uiaa_vendor == USB_VENDOR_OMNIVISION2) { 171 switch (uiaa->uiaa_product) { 172 case USB_PRODUCT_OMNIVISION2_PSEYE: 173 if (uiaa->uiaa_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 *uiaa = opaque; 187 struct usbd_device *dev = uiaa->uiaa_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 = uiaa->uiaa_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 int error = pseye_init_pipes(sc); 242 if (error) { 243 aprint_error_dev(self, "couldn't open pipes\n"); 244 return; 245 } 246 247 error = usbd_create_xfer(sc->sc_bulkin_pipe, sc->sc_bulkin_bufferlen, 248 USBD_SHORT_XFER_OK, 0, &sc->sc_bulkin_xfer); 249 if (error) { 250 aprint_error_dev(self, "couldn't create transfer\n"); 251 pseye_close_pipes(sc); 252 return; 253 } 254 255 sc->sc_bulkin_buffer = usbd_get_buffer(sc->sc_bulkin_xfer); 256 257 pseye_init(sc); 258 259 if (!pmf_device_register(self, NULL, NULL)) 260 aprint_error_dev(self, "couldn't establish power handler\n"); 261 262 sc->sc_videodev = video_attach_mi(&pseye_hw_if, self); 263 if (sc->sc_videodev == NULL) { 264 aprint_error_dev(self, "couldn't attach video layer\n"); 265 sc->sc_dying = 1; 266 return; 267 } 268 269 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 270 self); 271 272 } 273 274 static int 275 pseye_detach(device_t self, int flags) 276 { 277 struct pseye_softc *sc = device_private(self); 278 279 sc->sc_dying = 1; 280 281 pmf_device_deregister(self); 282 283 if (sc->sc_videodev != NULL) { 284 config_detach(sc->sc_videodev, flags); 285 sc->sc_videodev = NULL; 286 } 287 288 if (sc->sc_bulkin_pipe != NULL) { 289 usbd_abort_pipe(sc->sc_bulkin_pipe); 290 } 291 292 if (sc->sc_bulkin_xfer != NULL) { 293 usbd_destroy_xfer(sc->sc_bulkin_xfer); 294 sc->sc_bulkin_xfer = NULL; 295 } 296 297 if (sc->sc_bulkin_pipe != NULL) { 298 usbd_close_pipe(sc->sc_bulkin_pipe); 299 sc->sc_bulkin_pipe = NULL; 300 } 301 302 mutex_enter(&sc->sc_mtx); 303 if (sc->sc_running) { 304 sc->sc_running = 0; 305 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 306 } 307 mutex_exit(&sc->sc_mtx); 308 309 cv_destroy(&sc->sc_cv); 310 mutex_destroy(&sc->sc_mtx); 311 312 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 313 sc->sc_dev); 314 315 return 0; 316 } 317 318 int 319 pseye_activate(device_t self, enum devact act) 320 { 321 struct pseye_softc *sc = device_private(self); 322 323 switch (act) { 324 case DVACT_DEACTIVATE: 325 sc->sc_dying = 1; 326 return 0; 327 default: 328 return EOPNOTSUPP; 329 } 330 } 331 332 static void 333 pseye_childdet(device_t self, device_t child) 334 { 335 struct pseye_softc *sc = device_private(self); 336 337 if (sc->sc_videodev) { 338 KASSERT(sc->sc_videodev == child); 339 sc->sc_videodev = NULL; 340 } 341 } 342 343 /* 344 * Device access 345 */ 346 347 static void 348 pseye_init(struct pseye_softc *sc) 349 { 350 pseye_sccb_init(sc); 351 352 pseye_setregv(sc, 0xc2, 0x0c); 353 pseye_setregv(sc, 0x88, 0xf8); 354 pseye_setregv(sc, 0xc3, 0x69); 355 pseye_setregv(sc, 0x89, 0xff); 356 pseye_setregv(sc, 0x76, 0x03); 357 pseye_setregv(sc, 0x92, 0x01); 358 pseye_setregv(sc, 0x93, 0x18); 359 pseye_setregv(sc, 0x94, 0x10); 360 pseye_setregv(sc, 0x95, 0x10); 361 pseye_setregv(sc, 0xe2, 0x00); 362 pseye_setregv(sc, 0xe7, 0x3e); 363 364 pseye_setregv(sc, 0x96, 0x00); 365 366 pseye_setreg(sc, 0x97, 0x20); 367 pseye_setreg(sc, 0x97, 0x20); 368 pseye_setreg(sc, 0x97, 0x20); 369 pseye_setreg(sc, 0x97, 0x0a); 370 pseye_setreg(sc, 0x97, 0x3f); 371 pseye_setreg(sc, 0x97, 0x4a); 372 pseye_setreg(sc, 0x97, 0x20); 373 pseye_setreg(sc, 0x97, 0x15); 374 pseye_setreg(sc, 0x97, 0x0b); 375 376 pseye_setregv(sc, 0x8e, 0x40); 377 pseye_setregv(sc, 0x1f, 0x81); 378 pseye_setregv(sc, 0x34, 0x05); 379 pseye_setregv(sc, 0xe3, 0x04); 380 pseye_setregv(sc, 0x88, 0x00); 381 pseye_setregv(sc, 0x89, 0x00); 382 pseye_setregv(sc, 0x76, 0x00); 383 pseye_setregv(sc, 0xe7, 0x2e); 384 pseye_setregv(sc, 0x31, 0xf9); 385 pseye_setregv(sc, 0x25, 0x42); 386 pseye_setregv(sc, 0x21, 0xf0); 387 388 pseye_setreg(sc, 0x1c, 0x00); 389 pseye_setreg(sc, 0x1d, 0x40); 390 pseye_setreg(sc, 0x1d, 0x02); /* payload size 0x0200 * 4 == 2048 */ 391 pseye_setreg(sc, 0x1d, 0x00); 392 pseye_setreg(sc, 0x1d, 0x02); /* frame size 0x025800 * 4 == 614400 */ 393 pseye_setreg(sc, 0x1d, 0x58); 394 pseye_setreg(sc, 0x1d, 0x00); 395 396 pseye_setreg(sc, 0x1c, 0x0a); 397 pseye_setreg(sc, 0x1d, 0x08); /* enable UVC header */ 398 pseye_setreg(sc, 0x1d, 0x0e); 399 400 pseye_setregv(sc, 0x8d, 0x1c); 401 pseye_setregv(sc, 0x8e, 0x80); 402 pseye_setregv(sc, 0xe5, 0x04); 403 404 pseye_sccb_setreg(sc, 0x12, 0x80); 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 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); 416 417 pseye_sccb_setreg(sc, 0x3d, 0x03); 418 pseye_sccb_setreg(sc, 0x17, 0x26); 419 pseye_sccb_setreg(sc, 0x18, 0xa0); 420 pseye_sccb_setreg(sc, 0x19, 0x07); 421 pseye_sccb_setreg(sc, 0x1a, 0xf0); 422 pseye_sccb_setreg(sc, 0x32, 0x00); 423 pseye_sccb_setreg(sc, 0x29, 0xa0); 424 pseye_sccb_setreg(sc, 0x2c, 0xf0); 425 pseye_sccb_setreg(sc, 0x65, 0x20); 426 pseye_sccb_setreg(sc, 0x11, 0x01); 427 pseye_sccb_setreg(sc, 0x42, 0x7f); 428 pseye_sccb_setreg(sc, 0x63, 0xe0); 429 pseye_sccb_setreg(sc, 0x64, 0xff); 430 pseye_sccb_setreg(sc, 0x66, 0x00); 431 pseye_sccb_setreg(sc, 0x13, 0xf0); 432 pseye_sccb_setreg(sc, 0x0d, 0x41); 433 pseye_sccb_setreg(sc, 0x0f, 0xc5); 434 pseye_sccb_setreg(sc, 0x14, 0x11); 435 436 pseye_sccb_setreg(sc, 0x22, 0x7f); 437 pseye_sccb_setreg(sc, 0x23, 0x03); 438 pseye_sccb_setreg(sc, 0x24, 0x40); 439 pseye_sccb_setreg(sc, 0x25, 0x30); 440 pseye_sccb_setreg(sc, 0x26, 0xa1); 441 pseye_sccb_setreg(sc, 0x2a, 0x00); 442 pseye_sccb_setreg(sc, 0x2b, 0x00); 443 pseye_sccb_setreg(sc, 0x6b, 0xaa); 444 pseye_sccb_setreg(sc, 0x13, 0xff); 445 446 pseye_sccb_setreg(sc, 0x90, 0x05); 447 pseye_sccb_setreg(sc, 0x91, 0x01); 448 pseye_sccb_setreg(sc, 0x92, 0x03); 449 pseye_sccb_setreg(sc, 0x93, 0x00); 450 pseye_sccb_setreg(sc, 0x94, 0x60); 451 pseye_sccb_setreg(sc, 0x95, 0x3c); 452 pseye_sccb_setreg(sc, 0x96, 0x24); 453 pseye_sccb_setreg(sc, 0x97, 0x1e); 454 pseye_sccb_setreg(sc, 0x98, 0x62); 455 pseye_sccb_setreg(sc, 0x99, 0x80); 456 pseye_sccb_setreg(sc, 0x9a, 0x1e); 457 pseye_sccb_setreg(sc, 0x9b, 0x08); 458 pseye_sccb_setreg(sc, 0x9c, 0x20); 459 pseye_sccb_setreg(sc, 0x9e, 0x81); 460 461 pseye_sccb_setreg(sc, 0xa6, 0x04); 462 pseye_sccb_setreg(sc, 0x7e, 0x0c); 463 pseye_sccb_setreg(sc, 0x7f, 0x16); 464 465 pseye_sccb_setreg(sc, 0x80, 0x2a); 466 pseye_sccb_setreg(sc, 0x81, 0x4e); 467 pseye_sccb_setreg(sc, 0x82, 0x61); 468 pseye_sccb_setreg(sc, 0x83, 0x6f); 469 pseye_sccb_setreg(sc, 0x84, 0x7b); 470 pseye_sccb_setreg(sc, 0x85, 0x86); 471 pseye_sccb_setreg(sc, 0x86, 0x8e); 472 pseye_sccb_setreg(sc, 0x87, 0x97); 473 pseye_sccb_setreg(sc, 0x88, 0xa4); 474 pseye_sccb_setreg(sc, 0x89, 0xaf); 475 pseye_sccb_setreg(sc, 0x8a, 0xc5); 476 pseye_sccb_setreg(sc, 0x8b, 0xd7); 477 pseye_sccb_setreg(sc, 0x8c, 0xe8); 478 pseye_sccb_setreg(sc, 0x8d, 0x20); 479 480 pseye_sccb_setreg(sc, 0x0c, 0x90); 481 482 pseye_setregv(sc, 0xc0, 0x50); 483 pseye_setregv(sc, 0xc1, 0x3c); 484 pseye_setregv(sc, 0xc2, 0x0c); 485 486 pseye_sccb_setreg(sc, 0x2b, 0x00); 487 pseye_sccb_setreg(sc, 0x22, 0x7f); 488 pseye_sccb_setreg(sc, 0x23, 0x03); 489 pseye_sccb_setreg(sc, 0x11, 0x01); 490 pseye_sccb_setreg(sc, 0x0c, 0xd0); 491 pseye_sccb_setreg(sc, 0x64, 0xff); 492 pseye_sccb_setreg(sc, 0x0d, 0x41); 493 494 pseye_sccb_setreg(sc, 0x14, 0x41); 495 pseye_sccb_setreg(sc, 0x0e, 0xcd); 496 pseye_sccb_setreg(sc, 0xac, 0xbf); 497 pseye_sccb_setreg(sc, 0x8e, 0x00); 498 pseye_sccb_setreg(sc, 0x0c, 0xd0); 499 500 pseye_stop(sc); 501 } 502 503 static void 504 pseye_sccb_init(struct pseye_softc *sc) 505 { 506 pseye_setregv(sc, 0xe7, 0x3a); 507 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 508 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 509 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60); 510 pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42); 511 } 512 513 static void 514 pseye_stop(struct pseye_softc *sc) 515 { 516 pseye_led(sc, false); 517 pseye_setreg(sc, 0xe0, 0x09); 518 } 519 520 static void 521 pseye_start(struct pseye_softc *sc) 522 { 523 pseye_led(sc, true); 524 pseye_setreg(sc, 0xe0, 0x00); 525 } 526 527 static void 528 pseye_led(struct pseye_softc *sc, bool enabled) 529 { 530 uint8_t val; 531 532 val = pseye_getreg(sc, 0x21); 533 pseye_setreg(sc, 0x21, val | 0x80); 534 535 val = pseye_getreg(sc, 0x23); 536 if (enabled == true) 537 val |= 0x80; 538 else 539 val &= ~0x80; 540 pseye_setreg(sc, 0x23, val); 541 } 542 543 static uint8_t 544 pseye_getreg(struct pseye_softc *sc, uint16_t reg) 545 { 546 usb_device_request_t req; 547 usbd_status err; 548 uint8_t buf; 549 550 req.bmRequestType = UT_READ_VENDOR_DEVICE; 551 req.bRequest = 1; 552 USETW(req.wValue, 0x0000); 553 USETW(req.wIndex, reg); 554 USETW(req.wLength, 1); 555 556 err = usbd_do_request(sc->sc_udev, &req, &buf); 557 if (err) { 558 aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n", 559 reg, usbd_errstr(err)); 560 return 0xff; 561 } 562 563 return buf; 564 } 565 566 static void 567 pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val) 568 { 569 usb_device_request_t req; 570 usbd_status err; 571 572 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 573 req.bRequest = 1; 574 USETW(req.wValue, 0x0000); 575 USETW(req.wIndex, reg); 576 USETW(req.wLength, 1); 577 578 err = usbd_do_request(sc->sc_udev, &req, &val); 579 if (err) 580 aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n", 581 reg, usbd_errstr(err)); 582 } 583 584 static void 585 pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val) 586 { 587 pseye_setreg(sc, reg, val); 588 if (pseye_getreg(sc, reg) != val) 589 aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n", 590 reg); 591 } 592 593 static void 594 pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val) 595 { 596 pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg); 597 pseye_setreg(sc, PSEYE_SCCB_WRITE, val); 598 pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3); 599 600 if (pseye_sccb_status(sc) == false) 601 aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n", 602 reg); 603 } 604 605 static bool 606 pseye_sccb_status(struct pseye_softc *sc) 607 { 608 int retry = 5; 609 uint8_t reg; 610 611 while (retry-- >= 0) { 612 reg = pseye_getreg(sc, PSEYE_SCCB_STATUS); 613 if (reg == 0x00) 614 return true; 615 else if (reg == 0x04) 616 return false; 617 } 618 619 aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n"); 620 return false; 621 } 622 623 static usbd_status 624 pseye_get_frame(struct pseye_softc *sc, uint32_t *plen) 625 { 626 if (sc->sc_dying) 627 return USBD_IOERROR; 628 629 return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, 630 USBD_SHORT_XFER_OK, 1000, sc->sc_bulkin_buffer, plen); 631 } 632 633 static int 634 pseye_init_pipes(struct pseye_softc *sc) 635 { 636 usbd_status err; 637 638 if (sc->sc_dying) 639 return EIO; 640 641 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0, 642 &sc->sc_bulkin_pipe); 643 if (err) { 644 aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n", 645 usbd_errstr(err)); 646 return ENOMEM; 647 } 648 649 return 0; 650 } 651 652 int 653 pseye_close_pipes(struct pseye_softc *sc) 654 { 655 if (sc->sc_bulkin_pipe != NULL) { 656 usbd_abort_pipe(sc->sc_bulkin_pipe); 657 usbd_close_pipe(sc->sc_bulkin_pipe); 658 sc->sc_bulkin_pipe = NULL; 659 } 660 661 return 0; 662 } 663 664 static void 665 pseye_submit_payload(struct pseye_softc *sc, uint32_t tlen) 666 { 667 struct video_payload payload; 668 uvideo_payload_header_t *uvchdr; 669 uint8_t *buf = sc->sc_bulkin_buffer; 670 uint32_t len; 671 uint32_t brem = (640*480*2); 672 673 while (brem > 0 && tlen > 0) { 674 len = min(tlen, PSEYE_BULKIN_BLKLEN); 675 if (len < UVIDEO_PAYLOAD_HEADER_SIZE) { 676 printf("pseye_submit_payload: len=%u\n", len); 677 return; 678 } 679 680 uvchdr = (uvideo_payload_header_t *)buf; 681 if (uvchdr->bHeaderLength != UVIDEO_PAYLOAD_HEADER_SIZE) 682 goto next; 683 if (uvchdr->bHeaderLength == len && 684 !(uvchdr->bmHeaderInfo & UV_END_OF_FRAME)) 685 goto next; 686 if (uvchdr->bmHeaderInfo & UV_ERROR) 687 return; 688 if ((uvchdr->bmHeaderInfo & UV_PRES_TIME) == 0) 689 goto next; 690 691 payload.data = buf + uvchdr->bHeaderLength; 692 payload.size = min(brem, len - uvchdr->bHeaderLength); 693 payload.frameno = UGETDW(&buf[2]); 694 payload.end_of_frame = uvchdr->bmHeaderInfo & UV_END_OF_FRAME; 695 video_submit_payload(sc->sc_videodev, &payload); 696 697 next: 698 tlen -= len; 699 buf += len; 700 brem -= payload.size; 701 } 702 } 703 704 static void 705 pseye_transfer_thread(void *opaque) 706 { 707 struct pseye_softc *sc = opaque; 708 uint32_t len; 709 int error; 710 711 while (sc->sc_running) { 712 len = sc->sc_bulkin_bufferlen; 713 error = pseye_get_frame(sc, &len); 714 if (error == USBD_NORMAL_COMPLETION) 715 pseye_submit_payload(sc, len); 716 } 717 718 mutex_enter(&sc->sc_mtx); 719 cv_broadcast(&sc->sc_cv); 720 mutex_exit(&sc->sc_mtx); 721 722 kthread_exit(0); 723 } 724 725 /* video(9) API implementations */ 726 static int 727 pseye_open(void *opaque, int flags) 728 { 729 struct pseye_softc *sc = opaque; 730 731 if (sc->sc_dying) 732 return EIO; 733 734 pseye_start(sc); 735 736 return 0; 737 } 738 739 static void 740 pseye_close(void *opaque) 741 { 742 struct pseye_softc *sc = opaque; 743 744 pseye_stop(sc); 745 } 746 747 static const char * 748 pseye_get_devname(void *opaque) 749 { 750 return "PlayStation Eye"; 751 } 752 753 static const char * 754 pseye_get_businfo(void *opaque) 755 { 756 struct pseye_softc *sc = opaque; 757 758 return sc->sc_businfo; 759 } 760 761 static int 762 pseye_enum_format(void *opaque, uint32_t index, struct video_format *format) 763 { 764 if (index != 0) 765 return EINVAL; 766 return pseye_get_format(opaque, format); 767 } 768 769 static int 770 pseye_get_format(void *opaque, struct video_format *format) 771 { 772 format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */ 773 format->width = 640; 774 format->height = 480; 775 format->aspect_x = 4; 776 format->aspect_y = 3; 777 format->sample_size = format->width * format->height * 2; 778 format->stride = format->width * 2; 779 format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED; 780 format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED; 781 format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED; 782 format->interlace_flags = VIDEO_INTERLACE_ON; 783 format->priv = 0; 784 785 return 0; 786 } 787 788 static int 789 pseye_set_format(void *opaque, struct video_format *format) 790 { 791 #if notyet 792 if (format->pixel_format != VIDEO_FORMAT_YUYV) 793 return EINVAL; 794 if (format->width != 640 || format->height != 480) 795 return EINVAL; 796 #endif 797 /* XXX */ 798 return pseye_get_format(opaque, format); 799 } 800 801 static int 802 pseye_try_format(void *opaque, struct video_format *format) 803 { 804 return pseye_get_format(opaque, format); 805 } 806 807 static int 808 pseye_start_transfer(void *opaque) 809 { 810 struct pseye_softc *sc = opaque; 811 int err = 0; 812 813 mutex_enter(&sc->sc_mtx); 814 if (sc->sc_running == 0) { 815 sc->sc_running = 1; 816 err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread, 817 opaque, NULL, "%s", device_xname(sc->sc_dev)); 818 } else 819 aprint_error_dev(sc->sc_dev, "transfer already in progress\n"); 820 mutex_exit(&sc->sc_mtx); 821 822 return err; 823 } 824 825 static int 826 pseye_stop_transfer(void *opaque) 827 { 828 struct pseye_softc *sc = opaque; 829 830 mutex_enter(&sc->sc_mtx); 831 if (sc->sc_running) { 832 sc->sc_running = 0; 833 cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); 834 } 835 mutex_exit(&sc->sc_mtx); 836 837 return 0; 838 } 839 840 MODULE(MODULE_CLASS_DRIVER, pseye, NULL); 841 842 #ifdef _MODULE 843 #include "ioconf.c" 844 #endif 845 846 static int 847 pseye_modcmd(modcmd_t cmd, void *opaque) 848 { 849 switch (cmd) { 850 case MODULE_CMD_INIT: 851 #ifdef _MODULE 852 return config_init_component(cfdriver_ioconf_pseye, 853 cfattach_ioconf_pseye, cfdata_ioconf_pseye); 854 #else 855 return 0; 856 #endif 857 case MODULE_CMD_FINI: 858 #ifdef _MODULE 859 return config_fini_component(cfdriver_ioconf_pseye, 860 cfattach_ioconf_pseye, cfdata_ioconf_pseye); 861 #else 862 return 0; 863 #endif 864 default: 865 return ENOTTY; 866 } 867 } 868
Indexes created Tue Sep 30 06:09:59 GMT 2025