1 /* GSPCA subdrivers for Genesys Logic webcams with the GL860 chip 2 * Subdriver core 3 * 4 * 2009/09/24 Olivier Lorin <o.lorin@laposte.net> 5 * GSPCA by Jean-Francois Moine <http://moinejf.free.fr> 6 * Thanks BUGabundo and Malmostoso for your amazing help! 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 20 */ 21 22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 23 24 #include "gspca.h" 25 #include "gl860.h" 26 27 MODULE_AUTHOR("Olivier Lorin <o.lorin@laposte.net>"); 28 MODULE_DESCRIPTION("Genesys Logic USB PC Camera Driver"); 29 MODULE_LICENSE("GPL"); 30 31 /*======================== static function declarations ====================*/ 32 33 static void (*dev_init_settings)(struct gspca_dev *gspca_dev); 34 35 static int sd_config(struct gspca_dev *gspca_dev, 36 const struct usb_device_id *id); 37 static int sd_init(struct gspca_dev *gspca_dev); 38 static int sd_isoc_init(struct gspca_dev *gspca_dev); 39 static int sd_start(struct gspca_dev *gspca_dev); 40 static void sd_stop0(struct gspca_dev *gspca_dev); 41 static void sd_pkt_scan(struct gspca_dev *gspca_dev, 42 u8 *data, int len); 43 static void sd_callback(struct gspca_dev *gspca_dev); 44 45 static int gl860_guess_sensor(struct gspca_dev *gspca_dev, 46 u16 vendor_id, u16 product_id); 47 48 /*============================ driver options ==============================*/ 49 50 static s32 AC50Hz = 0xff; 51 module_param(AC50Hz, int, 0644); 52 MODULE_PARM_DESC(AC50Hz, " Does AC power frequency is 50Hz? (0/1)"); 53 54 static char sensor[7]; 55 module_param_string(sensor, sensor, sizeof(sensor), 0644); 56 MODULE_PARM_DESC(sensor, 57 " Driver sensor ('MI1320'/'MI2020'/'OV9655'/'OV2640')"); 58 59 /*============================ webcam controls =============================*/ 60 61 static int sd_s_ctrl(struct v4l2_ctrl *ctrl) 62 { 63 struct gspca_dev *gspca_dev = 64 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 65 struct sd *sd = (struct sd *) gspca_dev; 66 67 switch (ctrl->id) { 68 case V4L2_CID_BRIGHTNESS: 69 sd->vcur.brightness = ctrl->val; 70 break; 71 case V4L2_CID_CONTRAST: 72 sd->vcur.contrast = ctrl->val; 73 break; 74 case V4L2_CID_SATURATION: 75 sd->vcur.saturation = ctrl->val; 76 break; 77 case V4L2_CID_HUE: 78 sd->vcur.hue = ctrl->val; 79 break; 80 case V4L2_CID_GAMMA: 81 sd->vcur.gamma = ctrl->val; 82 break; 83 case V4L2_CID_HFLIP: 84 sd->vcur.mirror = ctrl->val; 85 break; 86 case V4L2_CID_VFLIP: 87 sd->vcur.flip = ctrl->val; 88 break; 89 case V4L2_CID_POWER_LINE_FREQUENCY: 90 sd->vcur.AC50Hz = ctrl->val; 91 break; 92 case V4L2_CID_WHITE_BALANCE_TEMPERATURE: 93 sd->vcur.whitebal = ctrl->val; 94 break; 95 case V4L2_CID_SHARPNESS: 96 sd->vcur.sharpness = ctrl->val; 97 break; 98 case V4L2_CID_BACKLIGHT_COMPENSATION: 99 sd->vcur.backlight = ctrl->val; 100 break; 101 default: 102 return -EINVAL; 103 } 104 105 if (gspca_dev->streaming) 106 sd->waitSet = 1; 107 108 return 0; 109 } 110 111 static const struct v4l2_ctrl_ops sd_ctrl_ops = { 112 .s_ctrl = sd_s_ctrl, 113 }; 114 115 static int sd_init_controls(struct gspca_dev *gspca_dev) 116 { 117 struct sd *sd = (struct sd *) gspca_dev; 118 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; 119 120 gspca_dev->vdev.ctrl_handler = hdl; 121 v4l2_ctrl_handler_init(hdl, 11); 122 123 if (sd->vmax.brightness) 124 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_BRIGHTNESS, 125 0, sd->vmax.brightness, 1, 126 sd->vcur.brightness); 127 128 if (sd->vmax.contrast) 129 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_CONTRAST, 130 0, sd->vmax.contrast, 1, 131 sd->vcur.contrast); 132 133 if (sd->vmax.saturation) 134 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_SATURATION, 135 0, sd->vmax.saturation, 1, 136 sd->vcur.saturation); 137 138 if (sd->vmax.hue) 139 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_HUE, 140 0, sd->vmax.hue, 1, sd->vcur.hue); 141 142 if (sd->vmax.gamma) 143 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_GAMMA, 144 0, sd->vmax.gamma, 1, sd->vcur.gamma); 145 146 if (sd->vmax.mirror) 147 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_HFLIP, 148 0, sd->vmax.mirror, 1, sd->vcur.mirror); 149 150 if (sd->vmax.flip) 151 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_VFLIP, 152 0, sd->vmax.flip, 1, sd->vcur.flip); 153 154 if (sd->vmax.AC50Hz) 155 v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops, 156 V4L2_CID_POWER_LINE_FREQUENCY, 157 sd->vmax.AC50Hz, 0, sd->vcur.AC50Hz); 158 159 if (sd->vmax.whitebal) 160 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 161 V4L2_CID_WHITE_BALANCE_TEMPERATURE, 162 0, sd->vmax.whitebal, 1, sd->vcur.whitebal); 163 164 if (sd->vmax.sharpness) 165 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_SHARPNESS, 166 0, sd->vmax.sharpness, 1, 167 sd->vcur.sharpness); 168 169 if (sd->vmax.backlight) 170 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 171 V4L2_CID_BACKLIGHT_COMPENSATION, 172 0, sd->vmax.backlight, 1, 173 sd->vcur.backlight); 174 175 if (hdl->error) { 176 pr_err("Could not initialize controls\n"); 177 return hdl->error; 178 } 179 180 return 0; 181 } 182 183 /*==================== sud-driver structure initialisation =================*/ 184 185 static const struct sd_desc sd_desc_mi1320 = { 186 .name = MODULE_NAME, 187 .config = sd_config, 188 .init = sd_init, 189 .init_controls = sd_init_controls, 190 .isoc_init = sd_isoc_init, 191 .start = sd_start, 192 .stop0 = sd_stop0, 193 .pkt_scan = sd_pkt_scan, 194 .dq_callback = sd_callback, 195 }; 196 197 static const struct sd_desc sd_desc_mi2020 = { 198 .name = MODULE_NAME, 199 .config = sd_config, 200 .init = sd_init, 201 .init_controls = sd_init_controls, 202 .isoc_init = sd_isoc_init, 203 .start = sd_start, 204 .stop0 = sd_stop0, 205 .pkt_scan = sd_pkt_scan, 206 .dq_callback = sd_callback, 207 }; 208 209 static const struct sd_desc sd_desc_ov2640 = { 210 .name = MODULE_NAME, 211 .config = sd_config, 212 .init = sd_init, 213 .init_controls = sd_init_controls, 214 .isoc_init = sd_isoc_init, 215 .start = sd_start, 216 .stop0 = sd_stop0, 217 .pkt_scan = sd_pkt_scan, 218 .dq_callback = sd_callback, 219 }; 220 221 static const struct sd_desc sd_desc_ov9655 = { 222 .name = MODULE_NAME, 223 .config = sd_config, 224 .init = sd_init, 225 .init_controls = sd_init_controls, 226 .isoc_init = sd_isoc_init, 227 .start = sd_start, 228 .stop0 = sd_stop0, 229 .pkt_scan = sd_pkt_scan, 230 .dq_callback = sd_callback, 231 }; 232 233 /*=========================== sub-driver image sizes =======================*/ 234 235 static struct v4l2_pix_format mi2020_mode[] = { 236 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 237 .bytesperline = 640, 238 .sizeimage = 640 * 480, 239 .colorspace = V4L2_COLORSPACE_SRGB, 240 .priv = 0 241 }, 242 { 800, 598, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 243 .bytesperline = 800, 244 .sizeimage = 800 * 598, 245 .colorspace = V4L2_COLORSPACE_SRGB, 246 .priv = 1 247 }, 248 {1280, 1024, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 249 .bytesperline = 1280, 250 .sizeimage = 1280 * 1024, 251 .colorspace = V4L2_COLORSPACE_SRGB, 252 .priv = 2 253 }, 254 {1600, 1198, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 255 .bytesperline = 1600, 256 .sizeimage = 1600 * 1198, 257 .colorspace = V4L2_COLORSPACE_SRGB, 258 .priv = 3 259 }, 260 }; 261 262 static struct v4l2_pix_format ov2640_mode[] = { 263 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 264 .bytesperline = 640, 265 .sizeimage = 640 * 480, 266 .colorspace = V4L2_COLORSPACE_SRGB, 267 .priv = 0 268 }, 269 { 800, 600, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 270 .bytesperline = 800, 271 .sizeimage = 800 * 600, 272 .colorspace = V4L2_COLORSPACE_SRGB, 273 .priv = 1 274 }, 275 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 276 .bytesperline = 1280, 277 .sizeimage = 1280 * 960, 278 .colorspace = V4L2_COLORSPACE_SRGB, 279 .priv = 2 280 }, 281 {1600, 1200, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 282 .bytesperline = 1600, 283 .sizeimage = 1600 * 1200, 284 .colorspace = V4L2_COLORSPACE_SRGB, 285 .priv = 3 286 }, 287 }; 288 289 static struct v4l2_pix_format mi1320_mode[] = { 290 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 291 .bytesperline = 640, 292 .sizeimage = 640 * 480, 293 .colorspace = V4L2_COLORSPACE_SRGB, 294 .priv = 0 295 }, 296 { 800, 600, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 297 .bytesperline = 800, 298 .sizeimage = 800 * 600, 299 .colorspace = V4L2_COLORSPACE_SRGB, 300 .priv = 1 301 }, 302 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 303 .bytesperline = 1280, 304 .sizeimage = 1280 * 960, 305 .colorspace = V4L2_COLORSPACE_SRGB, 306 .priv = 2 307 }, 308 }; 309 310 static struct v4l2_pix_format ov9655_mode[] = { 311 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 312 .bytesperline = 640, 313 .sizeimage = 640 * 480, 314 .colorspace = V4L2_COLORSPACE_SRGB, 315 .priv = 0 316 }, 317 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, 318 .bytesperline = 1280, 319 .sizeimage = 1280 * 960, 320 .colorspace = V4L2_COLORSPACE_SRGB, 321 .priv = 1 322 }, 323 }; 324 325 /*========================= sud-driver functions ===========================*/ 326 327 /* This function is called at probe time */ 328 static int sd_config(struct gspca_dev *gspca_dev, 329 const struct usb_device_id *id) 330 { 331 struct sd *sd = (struct sd *) gspca_dev; 332 struct cam *cam; 333 u16 vendor_id, product_id; 334 335 /* Get USB VendorID and ProductID */ 336 vendor_id = id->idVendor; 337 product_id = id->idProduct; 338 339 sd->nbRightUp = 1; 340 sd->nbIm = -1; 341 342 sd->sensor = 0xff; 343 if (strcmp(sensor, "MI1320") == 0) 344 sd->sensor = ID_MI1320; 345 else if (strcmp(sensor, "OV2640") == 0) 346 sd->sensor = ID_OV2640; 347 else if (strcmp(sensor, "OV9655") == 0) 348 sd->sensor = ID_OV9655; 349 else if (strcmp(sensor, "MI2020") == 0) 350 sd->sensor = ID_MI2020; 351 352 /* Get sensor and set the suitable init/start/../stop functions */ 353 if (gl860_guess_sensor(gspca_dev, vendor_id, product_id) == -1) 354 return -1; 355 356 cam = &gspca_dev->cam; 357 358 switch (sd->sensor) { 359 case ID_MI1320: 360 gspca_dev->sd_desc = &sd_desc_mi1320; 361 cam->cam_mode = mi1320_mode; 362 cam->nmodes = ARRAY_SIZE(mi1320_mode); 363 dev_init_settings = mi1320_init_settings; 364 break; 365 366 case ID_MI2020: 367 gspca_dev->sd_desc = &sd_desc_mi2020; 368 cam->cam_mode = mi2020_mode; 369 cam->nmodes = ARRAY_SIZE(mi2020_mode); 370 dev_init_settings = mi2020_init_settings; 371 break; 372 373 case ID_OV2640: 374 gspca_dev->sd_desc = &sd_desc_ov2640; 375 cam->cam_mode = ov2640_mode; 376 cam->nmodes = ARRAY_SIZE(ov2640_mode); 377 dev_init_settings = ov2640_init_settings; 378 break; 379 380 case ID_OV9655: 381 gspca_dev->sd_desc = &sd_desc_ov9655; 382 cam->cam_mode = ov9655_mode; 383 cam->nmodes = ARRAY_SIZE(ov9655_mode); 384 dev_init_settings = ov9655_init_settings; 385 break; 386 } 387 388 dev_init_settings(gspca_dev); 389 if (AC50Hz != 0xff) 390 ((struct sd *) gspca_dev)->vcur.AC50Hz = AC50Hz; 391 392 return 0; 393 } 394 395 /* This function is called at probe time after sd_config */ 396 static int sd_init(struct gspca_dev *gspca_dev) 397 { 398 struct sd *sd = (struct sd *) gspca_dev; 399 400 return sd->dev_init_at_startup(gspca_dev); 401 } 402 403 /* This function is called before to choose the alt setting */ 404 static int sd_isoc_init(struct gspca_dev *gspca_dev) 405 { 406 struct sd *sd = (struct sd *) gspca_dev; 407 408 return sd->dev_configure_alt(gspca_dev); 409 } 410 411 /* This function is called to start the webcam */ 412 static int sd_start(struct gspca_dev *gspca_dev) 413 { 414 struct sd *sd = (struct sd *) gspca_dev; 415 416 return sd->dev_init_pre_alt(gspca_dev); 417 } 418 419 /* This function is called to stop the webcam */ 420 static void sd_stop0(struct gspca_dev *gspca_dev) 421 { 422 struct sd *sd = (struct sd *) gspca_dev; 423 424 if (!sd->gspca_dev.present) 425 return; 426 427 return sd->dev_post_unset_alt(gspca_dev); 428 } 429 430 /* This function is called when an image is being received */ 431 static void sd_pkt_scan(struct gspca_dev *gspca_dev, 432 u8 *data, int len) 433 { 434 struct sd *sd = (struct sd *) gspca_dev; 435 static s32 nSkipped; 436 437 s32 mode = (s32) gspca_dev->curr_mode; 438 s32 nToSkip = 439 sd->swapRB * (gspca_dev->cam.cam_mode[mode].bytesperline + 1); 440 441 /* Test only against 0202h, so endianness does not matter */ 442 switch (*(s16 *) data) { 443 case 0x0202: /* End of frame, start a new one */ 444 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); 445 nSkipped = 0; 446 if (sd->nbIm >= 0 && sd->nbIm < 10) 447 sd->nbIm++; 448 gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); 449 break; 450 451 default: 452 data += 2; 453 len -= 2; 454 if (nSkipped + len <= nToSkip) 455 nSkipped += len; 456 else { 457 if (nSkipped < nToSkip && nSkipped + len > nToSkip) { 458 data += nToSkip - nSkipped; 459 len -= nToSkip - nSkipped; 460 nSkipped = nToSkip + 1; 461 } 462 gspca_frame_add(gspca_dev, 463 INTER_PACKET, data, len); 464 } 465 break; 466 } 467 } 468 469 /* This function is called when an image has been read */ 470 /* This function is used to monitor webcam orientation */ 471 static void sd_callback(struct gspca_dev *gspca_dev) 472 { 473 struct sd *sd = (struct sd *) gspca_dev; 474 475 if (!_OV9655_) { 476 u8 state; 477 u8 upsideDown; 478 479 /* Probe sensor orientation */ 480 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, (void *)&state); 481 482 /* C8/40 means upside-down (looking backwards) */ 483 /* D8/50 means right-up (looking onwards) */ 484 upsideDown = (state == 0xc8 || state == 0x40); 485 486 if (upsideDown && sd->nbRightUp > -4) { 487 if (sd->nbRightUp > 0) 488 sd->nbRightUp = 0; 489 if (sd->nbRightUp == -3) { 490 sd->mirrorMask = 1; 491 sd->waitSet = 1; 492 } 493 sd->nbRightUp--; 494 } 495 if (!upsideDown && sd->nbRightUp < 4) { 496 if (sd->nbRightUp < 0) 497 sd->nbRightUp = 0; 498 if (sd->nbRightUp == 3) { 499 sd->mirrorMask = 0; 500 sd->waitSet = 1; 501 } 502 sd->nbRightUp++; 503 } 504 } 505 506 if (sd->waitSet) 507 sd->dev_camera_settings(gspca_dev); 508 } 509 510 /*=================== USB driver structure initialisation ==================*/ 511 512 static const struct usb_device_id device_table[] = { 513 {USB_DEVICE(0x05e3, 0x0503)}, 514 {USB_DEVICE(0x05e3, 0xf191)}, 515 {} 516 }; 517 518 MODULE_DEVICE_TABLE(usb, device_table); 519 520 static int sd_probe(struct usb_interface *intf, 521 const struct usb_device_id *id) 522 { 523 return gspca_dev_probe(intf, id, 524 &sd_desc_mi1320, sizeof(struct sd), THIS_MODULE); 525 } 526 527 static void sd_disconnect(struct usb_interface *intf) 528 { 529 gspca_disconnect(intf); 530 } 531 532 static struct usb_driver sd_driver = { 533 .name = MODULE_NAME, 534 .id_table = device_table, 535 .probe = sd_probe, 536 .disconnect = sd_disconnect, 537 #ifdef CONFIG_PM 538 .suspend = gspca_suspend, 539 .resume = gspca_resume, 540 .reset_resume = gspca_resume, 541 #endif 542 }; 543 544 /*====================== Init and Exit module functions ====================*/ 545 546 module_usb_driver(sd_driver); 547 548 /*==========================================================================*/ 549 550 int gl860_RTx(struct gspca_dev *gspca_dev, 551 unsigned char pref, u32 req, u16 val, u16 index, 552 s32 len, void *pdata) 553 { 554 struct usb_device *udev = gspca_dev->dev; 555 s32 r = 0; 556 557 if (pref == 0x40) { /* Send */ 558 if (len > 0) { 559 memcpy(gspca_dev->usb_buf, pdata, len); 560 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 561 req, pref, val, index, 562 gspca_dev->usb_buf, 563 len, 400 + 200 * (len > 1)); 564 } else { 565 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 566 req, pref, val, index, NULL, len, 400); 567 } 568 } else { /* Receive */ 569 if (len > 0) { 570 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 571 req, pref, val, index, 572 gspca_dev->usb_buf, 573 len, 400 + 200 * (len > 1)); 574 memcpy(pdata, gspca_dev->usb_buf, len); 575 } else { 576 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 577 req, pref, val, index, NULL, len, 400); 578 } 579 } 580 581 if (r < 0) 582 pr_err("ctrl transfer failed %4d [p%02x r%d v%04x i%04x len%d]\n", 583 r, pref, req, val, index, len); 584 else if (len > 1 && r < len) 585 gspca_err(gspca_dev, "short ctrl transfer %d/%d\n", r, len); 586 587 msleep(1); 588 589 return r; 590 } 591 592 int fetch_validx(struct gspca_dev *gspca_dev, struct validx *tbl, int len) 593 { 594 int n; 595 596 for (n = 0; n < len; n++) { 597 if (tbl[n].idx != 0xffff) 598 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val, 599 tbl[n].idx, 0, NULL); 600 else if (tbl[n].val == 0xffff) 601 break; 602 else 603 msleep(tbl[n].val); 604 } 605 return n; 606 } 607 608 int keep_on_fetching_validx(struct gspca_dev *gspca_dev, struct validx *tbl, 609 int len, int n) 610 { 611 while (++n < len) { 612 if (tbl[n].idx != 0xffff) 613 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val, tbl[n].idx, 614 0, NULL); 615 else if (tbl[n].val == 0xffff) 616 break; 617 else 618 msleep(tbl[n].val); 619 } 620 return n; 621 } 622 623 void fetch_idxdata(struct gspca_dev *gspca_dev, struct idxdata *tbl, int len) 624 { 625 int n; 626 627 for (n = 0; n < len; n++) { 628 if (memcmp(tbl[n].data, "\xff\xff\xff", 3) != 0) 629 ctrl_out(gspca_dev, 0x40, 3, 0x7a00, tbl[n].idx, 630 3, tbl[n].data); 631 else 632 msleep(tbl[n].idx); 633 } 634 } 635 636 static int gl860_guess_sensor(struct gspca_dev *gspca_dev, 637 u16 vendor_id, u16 product_id) 638 { 639 struct sd *sd = (struct sd *) gspca_dev; 640 u8 probe, nb26, nb96, nOV, ntry; 641 642 if (product_id == 0xf191) 643 sd->sensor = ID_MI1320; 644 645 if (sd->sensor == 0xff) { 646 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe); 647 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe); 648 649 ctrl_out(gspca_dev, 0x40, 1, 0x0000, 0x0000, 0, NULL); 650 msleep(3); 651 ctrl_out(gspca_dev, 0x40, 1, 0x0010, 0x0010, 0, NULL); 652 msleep(3); 653 ctrl_out(gspca_dev, 0x40, 1, 0x0008, 0x00c0, 0, NULL); 654 msleep(3); 655 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c1, 0, NULL); 656 msleep(3); 657 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c2, 0, NULL); 658 msleep(3); 659 ctrl_out(gspca_dev, 0x40, 1, 0x0020, 0x0006, 0, NULL); 660 msleep(3); 661 ctrl_out(gspca_dev, 0x40, 1, 0x006a, 0x000d, 0, NULL); 662 msleep(56); 663 664 gspca_dbg(gspca_dev, D_PROBE, "probing for sensor MI2020 or OVXXXX\n"); 665 nOV = 0; 666 for (ntry = 0; ntry < 4; ntry++) { 667 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000, 0, NULL); 668 msleep(3); 669 ctrl_out(gspca_dev, 0x40, 1, 0x0063, 0x0006, 0, NULL); 670 msleep(3); 671 ctrl_out(gspca_dev, 0x40, 1, 0x7a00, 0x8030, 0, NULL); 672 msleep(10); 673 ctrl_in(gspca_dev, 0xc0, 2, 0x7a00, 0x8030, 1, &probe); 674 gspca_dbg(gspca_dev, D_PROBE, "probe=0x%02x\n", probe); 675 if (probe == 0xff) 676 nOV++; 677 } 678 679 if (nOV) { 680 gspca_dbg(gspca_dev, D_PROBE, "0xff -> OVXXXX\n"); 681 gspca_dbg(gspca_dev, D_PROBE, "probing for sensor OV2640 or OV9655"); 682 683 nb26 = nb96 = 0; 684 for (ntry = 0; ntry < 4; ntry++) { 685 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000, 686 0, NULL); 687 msleep(3); 688 ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x800a, 689 0, NULL); 690 msleep(10); 691 692 /* Wait for 26(OV2640) or 96(OV9655) */ 693 ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x800a, 694 1, &probe); 695 696 if (probe == 0x26 || probe == 0x40) { 697 gspca_dbg(gspca_dev, D_PROBE, 698 "probe=0x%02x -> OV2640\n", 699 probe); 700 sd->sensor = ID_OV2640; 701 nb26 += 4; 702 break; 703 } 704 if (probe == 0x96 || probe == 0x55) { 705 gspca_dbg(gspca_dev, D_PROBE, 706 "probe=0x%02x -> OV9655\n", 707 probe); 708 sd->sensor = ID_OV9655; 709 nb96 += 4; 710 break; 711 } 712 gspca_dbg(gspca_dev, D_PROBE, "probe=0x%02x\n", 713 probe); 714 if (probe == 0x00) 715 nb26++; 716 if (probe == 0xff) 717 nb96++; 718 msleep(3); 719 } 720 if (nb26 < 4 && nb96 < 4) 721 return -1; 722 } else { 723 gspca_dbg(gspca_dev, D_PROBE, "Not any 0xff -> MI2020\n"); 724 sd->sensor = ID_MI2020; 725 } 726 } 727 728 if (_MI1320_) { 729 gspca_dbg(gspca_dev, D_PROBE, "05e3:f191 sensor MI1320 (1.3M)\n"); 730 } else if (_MI2020_) { 731 gspca_dbg(gspca_dev, D_PROBE, "05e3:0503 sensor MI2020 (2.0M)\n"); 732 } else if (_OV9655_) { 733 gspca_dbg(gspca_dev, D_PROBE, "05e3:0503 sensor OV9655 (1.3M)\n"); 734 } else if (_OV2640_) { 735 gspca_dbg(gspca_dev, D_PROBE, "05e3:0503 sensor OV2640 (2.0M)\n"); 736 } else { 737 gspca_dbg(gspca_dev, D_PROBE, "***** Unknown sensor *****\n"); 738 return -1; 739 } 740 741 return 0; 742 } 743