drivers/media/usb/gspca/stv06xx/stv06xx.c

   1 /*
   2  * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
   3  *                    Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
   4  * Copyright (c) 2002, 2003 Tuukka Toivonen
   5  * Copyright (c) 2008 Erik Andrén
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  18  * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
  19  * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
  20  * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
  21  * P/N 861075-0040: Sensor HDCS1000        ASIC
  22  * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
  23  * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
  24  */
  25
  26 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  27
  28 #include <linux/input.h>
  29 #include "stv06xx_sensor.h"
  30
  31 MODULE_AUTHOR("Erik Andrén");
  32 MODULE_DESCRIPTION("STV06XX USB Camera Driver");
  33 MODULE_LICENSE("GPL");
  34
  35 static bool dump_bridge;
  36 static bool dump_sensor;
  37
  38 int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data)
  39 {
  40         int err;
  41         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
  42         struct usb_device *udev = sd->gspca_dev.dev;
  43         __u8 *buf = sd->gspca_dev.usb_buf;
  44
  45         u8 len = (i2c_data > 0xff) ? 2 : 1;
  46
  47         buf[0] = i2c_data & 0xff;
  48         buf[1] = (i2c_data >> 8) & 0xff;
  49
  50         err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
  51                               0x04, 0x40, address, 0, buf, len,
  52                               STV06XX_URB_MSG_TIMEOUT);
  53
  54         gspca_dbg(gspca_dev, D_CONF, "Written 0x%x to address 0x%x, status: %d\n",
  55                   i2c_data, address, err);
  56
  57         return (err < 0) ? err : 0;
  58 }
  59
  60 int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data)
  61 {
  62         int err;
  63         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
  64         struct usb_device *udev = sd->gspca_dev.dev;
  65         __u8 *buf = sd->gspca_dev.usb_buf;
  66
  67         err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
  68                               0x04, 0xc0, address, 0, buf, 1,
  69                               STV06XX_URB_MSG_TIMEOUT);
  70
  71         *i2c_data = buf[0];
  72
  73         gspca_dbg(gspca_dev, D_CONF, "Reading 0x%x from address 0x%x, status %d\n",
  74                   *i2c_data, address, err);
  75
  76         return (err < 0) ? err : 0;
  77 }
  78
  79 /* Wraps the normal write sensor bytes / words functions for writing a
  80    single value */
  81 int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value)
  82 {
  83         if (sd->sensor->i2c_len == 2) {
  84                 u16 data[2] = { address, value };
  85                 return stv06xx_write_sensor_words(sd, data, 1);
  86         } else {
  87                 u8 data[2] = { address, value };
  88                 return stv06xx_write_sensor_bytes(sd, data, 1);
  89         }
  90 }
  91
  92 static int stv06xx_write_sensor_finish(struct sd *sd)
  93 {
  94         int err = 0;
  95
  96         if (sd->bridge == BRIDGE_STV610) {
  97                 struct usb_device *udev = sd->gspca_dev.dev;
  98                 __u8 *buf = sd->gspca_dev.usb_buf;
  99
 100                 buf[0] = 0;
 101                 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 102                                       0x04, 0x40, 0x1704, 0, buf, 1,
 103                                       STV06XX_URB_MSG_TIMEOUT);
 104         }
 105
 106         return (err < 0) ? err : 0;
 107 }
 108
 109 int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len)
 110 {
 111         int err, i, j;
 112         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 113         struct usb_device *udev = sd->gspca_dev.dev;
 114         __u8 *buf = sd->gspca_dev.usb_buf;
 115
 116         gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
 117                   len);
 118         for (i = 0; i < len;) {
 119                 /* Build the command buffer */
 120                 memset(buf, 0, I2C_BUFFER_LENGTH);
 121                 for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
 122                         buf[j] = data[2*i];
 123                         buf[0x10 + j] = data[2*i+1];
 124                         gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%02x to reg 0x%02x\n",
 125                                   data[2*i+1], data[2*i]);
 126                 }
 127                 buf[0x20] = sd->sensor->i2c_addr;
 128                 buf[0x21] = j - 1; /* Number of commands to send - 1 */
 129                 buf[0x22] = I2C_WRITE_CMD;
 130                 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 131                                       0x04, 0x40, 0x0400, 0, buf,
 132                                       I2C_BUFFER_LENGTH,
 133                                       STV06XX_URB_MSG_TIMEOUT);
 134                 if (err < 0)
 135                         return err;
 136         }
 137         return stv06xx_write_sensor_finish(sd);
 138 }
 139
 140 int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
 141 {
 142         int err, i, j;
 143         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 144         struct usb_device *udev = sd->gspca_dev.dev;
 145         __u8 *buf = sd->gspca_dev.usb_buf;
 146
 147         gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
 148                   len);
 149
 150         for (i = 0; i < len;) {
 151                 /* Build the command buffer */
 152                 memset(buf, 0, I2C_BUFFER_LENGTH);
 153                 for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
 154                         buf[j] = data[2*i];
 155                         buf[0x10 + j * 2] = data[2*i+1];
 156                         buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
 157                         gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%04x to reg 0x%02x\n",
 158                                   data[2*i+1], data[2*i]);
 159                 }
 160                 buf[0x20] = sd->sensor->i2c_addr;
 161                 buf[0x21] = j - 1; /* Number of commands to send - 1 */
 162                 buf[0x22] = I2C_WRITE_CMD;
 163                 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 164                                 0x04, 0x40, 0x0400, 0, buf,
 165                                 I2C_BUFFER_LENGTH,
 166                                 STV06XX_URB_MSG_TIMEOUT);
 167                 if (err < 0)
 168                         return err;
 169         }
 170         return stv06xx_write_sensor_finish(sd);
 171 }
 172
 173 int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
 174 {
 175         int err;
 176         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 177         struct usb_device *udev = sd->gspca_dev.dev;
 178         __u8 *buf = sd->gspca_dev.usb_buf;
 179
 180         err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
 181         if (err < 0)
 182                 return err;
 183
 184         /* Clear mem */
 185         memset(buf, 0, I2C_BUFFER_LENGTH);
 186
 187         buf[0] = address;
 188         buf[0x20] = sd->sensor->i2c_addr;
 189         buf[0x21] = 0;
 190
 191         /* Read I2C register */
 192         buf[0x22] = I2C_READ_CMD;
 193
 194         err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 195                               0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
 196                               STV06XX_URB_MSG_TIMEOUT);
 197         if (err < 0) {
 198                 pr_err("I2C: Read error writing address: %d\n", err);
 199                 return err;
 200         }
 201
 202         err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 203                               0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
 204                               STV06XX_URB_MSG_TIMEOUT);
 205         if (sd->sensor->i2c_len == 2)
 206                 *value = buf[0] | (buf[1] << 8);
 207         else
 208                 *value = buf[0];
 209
 210         gspca_dbg(gspca_dev, D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d\n",
 211                   *value, address, err);
 212
 213         return (err < 0) ? err : 0;
 214 }
 215
 216 /* Dumps all bridge registers */
 217 static void stv06xx_dump_bridge(struct sd *sd)
 218 {
 219         int i;
 220         u8 data, buf;
 221
 222         pr_info("Dumping all stv06xx bridge registers\n");
 223         for (i = 0x1400; i < 0x160f; i++) {
 224                 stv06xx_read_bridge(sd, i, &data);
 225
 226                 pr_info("Read 0x%x from address 0x%x\n", data, i);
 227         }
 228
 229         pr_info("Testing stv06xx bridge registers for writability\n");
 230         for (i = 0x1400; i < 0x160f; i++) {
 231                 stv06xx_read_bridge(sd, i, &data);
 232                 buf = data;
 233
 234                 stv06xx_write_bridge(sd, i, 0xff);
 235                 stv06xx_read_bridge(sd, i, &data);
 236                 if (data == 0xff)
 237                         pr_info("Register 0x%x is read/write\n", i);
 238                 else if (data != buf)
 239                         pr_info("Register 0x%x is read/write, but only partially\n",
 240                                 i);
 241                 else
 242                         pr_info("Register 0x%x is read-only\n", i);
 243
 244                 stv06xx_write_bridge(sd, i, buf);
 245         }
 246 }
 247
 248 /* this function is called at probe and resume time */
 249 static int stv06xx_init(struct gspca_dev *gspca_dev)
 250 {
 251         struct sd *sd = (struct sd *) gspca_dev;
 252         int err;
 253
 254         gspca_dbg(gspca_dev, D_PROBE, "Initializing camera\n");
 255
 256         /* Let the usb init settle for a bit
 257            before performing the initialization */
 258         msleep(250);
 259
 260         err = sd->sensor->init(sd);
 261
 262         if (dump_sensor && sd->sensor->dump)
 263                 sd->sensor->dump(sd);
 264
 265         return (err < 0) ? err : 0;
 266 }
 267
 268 /* this function is called at probe time */
 269 static int stv06xx_init_controls(struct gspca_dev *gspca_dev)
 270 {
 271         struct sd *sd = (struct sd *) gspca_dev;
 272
 273         gspca_dbg(gspca_dev, D_PROBE, "Initializing controls\n");
 274
 275         gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler;
 276         return sd->sensor->init_controls(sd);
 277 }
 278
 279 /* Start the camera */
 280 static int stv06xx_start(struct gspca_dev *gspca_dev)
 281 {
 282         struct sd *sd = (struct sd *) gspca_dev;
 283         struct usb_host_interface *alt;
 284         struct usb_interface *intf;
 285         int err, packet_size;
 286
 287         intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
 288         alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
 289         if (!alt) {
 290                 gspca_err(gspca_dev, "Couldn't get altsetting\n");
 291                 return -EIO;
 292         }
 293
 294         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 295         err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
 296         if (err < 0)
 297                 return err;
 298
 299         /* Prepare the sensor for start */
 300         err = sd->sensor->start(sd);
 301         if (err < 0)
 302                 goto out;
 303
 304         /* Start isochronous streaming */
 305         err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
 306
 307 out:
 308         if (err < 0)
 309                 gspca_dbg(gspca_dev, D_STREAM, "Starting stream failed\n");
 310         else
 311                 gspca_dbg(gspca_dev, D_STREAM, "Started streaming\n");
 312
 313         return (err < 0) ? err : 0;
 314 }
 315
 316 static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
 317 {
 318         struct usb_host_interface *alt;
 319         struct sd *sd = (struct sd *) gspca_dev;
 320
 321         /* Start isoc bandwidth "negotiation" at max isoc bandwidth */
 322         alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
 323         alt->endpoint[0].desc.wMaxPacketSize =
 324                 cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
 325
 326         return 0;
 327 }
 328
 329 static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
 330 {
 331         int ret, packet_size, min_packet_size;
 332         struct usb_host_interface *alt;
 333         struct sd *sd = (struct sd *) gspca_dev;
 334
 335         alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
 336         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 337         min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
 338         if (packet_size <= min_packet_size)
 339                 return -EIO;
 340
 341         packet_size -= 100;
 342         if (packet_size < min_packet_size)
 343                 packet_size = min_packet_size;
 344         alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
 345
 346         ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
 347         if (ret < 0)
 348                 gspca_err(gspca_dev, "set alt 1 err %d\n", ret);
 349
 350         return ret;
 351 }
 352
 353 static void stv06xx_stopN(struct gspca_dev *gspca_dev)
 354 {
 355         int err;
 356         struct sd *sd = (struct sd *) gspca_dev;
 357
 358         /* stop ISO-streaming */
 359         err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
 360         if (err < 0)
 361                 goto out;
 362
 363         err = sd->sensor->stop(sd);
 364
 365 out:
 366         if (err < 0)
 367                 gspca_dbg(gspca_dev, D_STREAM, "Failed to stop stream\n");
 368         else
 369                 gspca_dbg(gspca_dev, D_STREAM, "Stopped streaming\n");
 370 }
 371
 372 /*
 373  * Analyse an USB packet of the data stream and store it appropriately.
 374  * Each packet contains an integral number of chunks. Each chunk has
 375  * 2-bytes identification, followed by 2-bytes that describe the chunk
 376  * length. Known/guessed chunk identifications are:
 377  * 8001/8005/C001/C005 - Begin new frame
 378  * 8002/8006/C002/C006 - End frame
 379  * 0200/4200           - Contains actual image data, bayer or compressed
 380  * 0005                - 11 bytes of unknown data
 381  * 0100                - 2 bytes of unknown data
 382  * The 0005 and 0100 chunks seem to appear only in compressed stream.
 383  */
 384 static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
 385                         u8 *data,                       /* isoc packet */
 386                         int len)                        /* iso packet length */
 387 {
 388         struct sd *sd = (struct sd *) gspca_dev;
 389
 390         gspca_dbg(gspca_dev, D_PACK, "Packet of length %d arrived\n", len);
 391
 392         /* A packet may contain several frames
 393            loop until the whole packet is reached */
 394         while (len) {
 395                 int id, chunk_len;
 396
 397                 if (len < 4) {
 398                         gspca_dbg(gspca_dev, D_PACK, "Packet is smaller than 4 bytes\n");
 399                         return;
 400                 }
 401
 402                 /* Capture the id */
 403                 id = (data[0] << 8) | data[1];
 404
 405                 /* Capture the chunk length */
 406                 chunk_len = (data[2] << 8) | data[3];
 407                 gspca_dbg(gspca_dev, D_PACK, "Chunk id: %x, length: %d\n",
 408                           id, chunk_len);
 409
 410                 data += 4;
 411                 len -= 4;
 412
 413                 if (len < chunk_len) {
 414                         gspca_err(gspca_dev, "URB packet length is smaller than the specified chunk length\n");
 415                         gspca_dev->last_packet_type = DISCARD_PACKET;
 416                         return;
 417                 }
 418
 419                 /* First byte seem to be 02=data 2nd byte is unknown??? */
 420                 if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
 421                         goto frame_data;
 422
 423                 switch (id) {
 424                 case 0x0200:
 425                 case 0x4200:
 426 frame_data:
 427                         gspca_dbg(gspca_dev, D_PACK, "Frame data packet detected\n");
 428
 429                         if (sd->to_skip) {
 430                                 int skip = (sd->to_skip < chunk_len) ?
 431                                             sd->to_skip : chunk_len;
 432                                 data += skip;
 433                                 len -= skip;
 434                                 chunk_len -= skip;
 435                                 sd->to_skip -= skip;
 436                         }
 437
 438                         gspca_frame_add(gspca_dev, INTER_PACKET,
 439                                         data, chunk_len);
 440                         break;
 441
 442                 case 0x8001:
 443                 case 0x8005:
 444                 case 0xc001:
 445                 case 0xc005:
 446                         gspca_dbg(gspca_dev, D_PACK, "Starting new frame\n");
 447
 448                         /* Create a new frame, chunk length should be zero */
 449                         gspca_frame_add(gspca_dev, FIRST_PACKET,
 450                                         NULL, 0);
 451
 452                         if (sd->bridge == BRIDGE_ST6422)
 453                                 sd->to_skip = gspca_dev->pixfmt.width * 4;
 454
 455                         if (chunk_len)
 456                                 gspca_err(gspca_dev, "Chunk length is non-zero on a SOF\n");
 457                         break;
 458
 459                 case 0x8002:
 460                 case 0x8006:
 461                 case 0xc002:
 462                         gspca_dbg(gspca_dev, D_PACK, "End of frame detected\n");
 463
 464                         /* Complete the last frame (if any) */
 465                         gspca_frame_add(gspca_dev, LAST_PACKET,
 466                                         NULL, 0);
 467
 468                         if (chunk_len)
 469                                 gspca_err(gspca_dev, "Chunk length is non-zero on a EOF\n");
 470                         break;
 471
 472                 case 0x0005:
 473                         gspca_dbg(gspca_dev, D_PACK, "Chunk 0x005 detected\n");
 474                         /* Unknown chunk with 11 bytes of data,
 475                            occurs just before end of each frame
 476                            in compressed mode */
 477                         break;
 478
 479                 case 0x0100:
 480                         gspca_dbg(gspca_dev, D_PACK, "Chunk 0x0100 detected\n");
 481                         /* Unknown chunk with 2 bytes of data,
 482                            occurs 2-3 times per USB interrupt */
 483                         break;
 484                 case 0x42ff:
 485                         gspca_dbg(gspca_dev, D_PACK, "Chunk 0x42ff detected\n");
 486                         /* Special chunk seen sometimes on the ST6422 */
 487                         break;
 488                 default:
 489                         gspca_dbg(gspca_dev, D_PACK, "Unknown chunk 0x%04x detected\n",
 490                                   id);
 491                         /* Unknown chunk */
 492                 }
 493                 data    += chunk_len;
 494                 len     -= chunk_len;
 495         }
 496 }
 497
 498 #if IS_ENABLED(CONFIG_INPUT)
 499 static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
 500                         u8 *data,               /* interrupt packet data */
 501                         int len)                /* interrupt packet length */
 502 {
 503         int ret = -EINVAL;
 504
 505         if (len == 1 && (data[0] == 0x80 || data[0] == 0x10)) {
 506                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
 507                 input_sync(gspca_dev->input_dev);
 508                 ret = 0;
 509         }
 510
 511         if (len == 1 && (data[0] == 0x88 || data[0] == 0x11)) {
 512                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
 513                 input_sync(gspca_dev->input_dev);
 514                 ret = 0;
 515         }
 516
 517         return ret;
 518 }
 519 #endif
 520
 521 static int stv06xx_config(struct gspca_dev *gspca_dev,
 522                           const struct usb_device_id *id);
 523
 524 /* sub-driver description */
 525 static const struct sd_desc sd_desc = {
 526         .name = MODULE_NAME,
 527         .config = stv06xx_config,
 528         .init = stv06xx_init,
 529         .init_controls = stv06xx_init_controls,
 530         .start = stv06xx_start,
 531         .stopN = stv06xx_stopN,
 532         .pkt_scan = stv06xx_pkt_scan,
 533         .isoc_init = stv06xx_isoc_init,
 534         .isoc_nego = stv06xx_isoc_nego,
 535 #if IS_ENABLED(CONFIG_INPUT)
 536         .int_pkt_scan = sd_int_pkt_scan,
 537 #endif
 538 };
 539
 540 /* This function is called at probe time */
 541 static int stv06xx_config(struct gspca_dev *gspca_dev,
 542                           const struct usb_device_id *id)
 543 {
 544         struct sd *sd = (struct sd *) gspca_dev;
 545
 546         gspca_dbg(gspca_dev, D_PROBE, "Configuring camera\n");
 547
 548         sd->bridge = id->driver_info;
 549         gspca_dev->sd_desc = &sd_desc;
 550
 551         if (dump_bridge)
 552                 stv06xx_dump_bridge(sd);
 553
 554         sd->sensor = &stv06xx_sensor_st6422;
 555         if (!sd->sensor->probe(sd))
 556                 return 0;
 557
 558         sd->sensor = &stv06xx_sensor_vv6410;
 559         if (!sd->sensor->probe(sd))
 560                 return 0;
 561
 562         sd->sensor = &stv06xx_sensor_hdcs1x00;
 563         if (!sd->sensor->probe(sd))
 564                 return 0;
 565
 566         sd->sensor = &stv06xx_sensor_hdcs1020;
 567         if (!sd->sensor->probe(sd))
 568                 return 0;
 569
 570         sd->sensor = &stv06xx_sensor_pb0100;
 571         if (!sd->sensor->probe(sd))
 572                 return 0;
 573
 574         sd->sensor = NULL;
 575         return -ENODEV;
 576 }
 577
 578
 579
 580 /* -- module initialisation -- */
 581 static const struct usb_device_id device_table[] = {
 582         {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },    /* QuickCam Express */
 583         {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },    /* LEGO cam / QuickCam Web */
 584         {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },    /* Dexxa WebCam USB */
 585         {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },    /* QuickCam Messenger */
 586         {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },    /* QuickCam Communicate */
 587         {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },    /* QuickCam Messenger (new) */
 588         {}
 589 };
 590 MODULE_DEVICE_TABLE(usb, device_table);
 591
 592 /* -- device connect -- */
 593 static int sd_probe(struct usb_interface *intf,
 594                         const struct usb_device_id *id)
 595 {
 596         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 597                                THIS_MODULE);
 598 }
 599
 600 static void sd_disconnect(struct usb_interface *intf)
 601 {
 602         struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
 603         struct sd *sd = (struct sd *) gspca_dev;
 604         void *priv = sd->sensor_priv;
 605         gspca_dbg(gspca_dev, D_PROBE, "Disconnecting the stv06xx device\n");
 606
 607         sd->sensor = NULL;
 608         gspca_disconnect(intf);
 609         kfree(priv);
 610 }
 611
 612 static struct usb_driver sd_driver = {
 613         .name = MODULE_NAME,
 614         .id_table = device_table,
 615         .probe = sd_probe,
 616         .disconnect = sd_disconnect,
 617 #ifdef CONFIG_PM
 618         .suspend = gspca_suspend,
 619         .resume = gspca_resume,
 620         .reset_resume = gspca_resume,
 621 #endif
 622 };
 623
 624 module_usb_driver(sd_driver);
 625
 626 module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
 627 MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
 628
 629 module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
 630 MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");