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
stv06xx_write_bridge(struct sd * sd,u16 address,u16 i2c_data)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 PDEBUG(D_CONF, "Written 0x%x to address 0x%x, status: %d",
55 i2c_data, address, err);
56
57 return (err < 0) ? err : 0;
58 }
59
stv06xx_read_bridge(struct sd * sd,u16 address,u8 * i2c_data)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 PDEBUG(D_CONF, "Reading 0x%x from address 0x%x, status %d",
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 */
stv06xx_write_sensor(struct sd * sd,u8 address,u16 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
stv06xx_write_sensor_finish(struct sd * sd)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
stv06xx_write_sensor_bytes(struct sd * sd,const u8 * data,u8 len)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 PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
117 for (i = 0; i < len;) {
118 /* Build the command buffer */
119 memset(buf, 0, I2C_BUFFER_LENGTH);
120 for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
121 buf[j] = data[2*i];
122 buf[0x10 + j] = data[2*i+1];
123 PDEBUG(D_CONF, "I2C: Writing 0x%02x to reg 0x%02x",
124 data[2*i+1], data[2*i]);
125 }
126 buf[0x20] = sd->sensor->i2c_addr;
127 buf[0x21] = j - 1; /* Number of commands to send - 1 */
128 buf[0x22] = I2C_WRITE_CMD;
129 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
130 0x04, 0x40, 0x0400, 0, buf,
131 I2C_BUFFER_LENGTH,
132 STV06XX_URB_MSG_TIMEOUT);
133 if (err < 0)
134 return err;
135 }
136 return stv06xx_write_sensor_finish(sd);
137 }
138
stv06xx_write_sensor_words(struct sd * sd,const u16 * data,u8 len)139 int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
140 {
141 int err, i, j;
142 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
143 struct usb_device *udev = sd->gspca_dev.dev;
144 __u8 *buf = sd->gspca_dev.usb_buf;
145
146 PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
147
148 for (i = 0; i < len;) {
149 /* Build the command buffer */
150 memset(buf, 0, I2C_BUFFER_LENGTH);
151 for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
152 buf[j] = data[2*i];
153 buf[0x10 + j * 2] = data[2*i+1];
154 buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
155 PDEBUG(D_CONF, "I2C: Writing 0x%04x to reg 0x%02x",
156 data[2*i+1], data[2*i]);
157 }
158 buf[0x20] = sd->sensor->i2c_addr;
159 buf[0x21] = j - 1; /* Number of commands to send - 1 */
160 buf[0x22] = I2C_WRITE_CMD;
161 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
162 0x04, 0x40, 0x0400, 0, buf,
163 I2C_BUFFER_LENGTH,
164 STV06XX_URB_MSG_TIMEOUT);
165 if (err < 0)
166 return err;
167 }
168 return stv06xx_write_sensor_finish(sd);
169 }
170
stv06xx_read_sensor(struct sd * sd,const u8 address,u16 * value)171 int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
172 {
173 int err;
174 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
175 struct usb_device *udev = sd->gspca_dev.dev;
176 __u8 *buf = sd->gspca_dev.usb_buf;
177
178 err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
179 if (err < 0)
180 return err;
181
182 /* Clear mem */
183 memset(buf, 0, I2C_BUFFER_LENGTH);
184
185 buf[0] = address;
186 buf[0x20] = sd->sensor->i2c_addr;
187 buf[0x21] = 0;
188
189 /* Read I2C register */
190 buf[0x22] = I2C_READ_CMD;
191
192 err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
193 0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
194 STV06XX_URB_MSG_TIMEOUT);
195 if (err < 0) {
196 pr_err("I2C: Read error writing address: %d\n", err);
197 return err;
198 }
199
200 err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
201 0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
202 STV06XX_URB_MSG_TIMEOUT);
203 if (sd->sensor->i2c_len == 2)
204 *value = buf[0] | (buf[1] << 8);
205 else
206 *value = buf[0];
207
208 PDEBUG(D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d",
209 *value, address, err);
210
211 return (err < 0) ? err : 0;
212 }
213
214 /* Dumps all bridge registers */
stv06xx_dump_bridge(struct sd * sd)215 static void stv06xx_dump_bridge(struct sd *sd)
216 {
217 int i;
218 u8 data, buf;
219
220 pr_info("Dumping all stv06xx bridge registers\n");
221 for (i = 0x1400; i < 0x160f; i++) {
222 stv06xx_read_bridge(sd, i, &data);
223
224 pr_info("Read 0x%x from address 0x%x\n", data, i);
225 }
226
227 pr_info("Testing stv06xx bridge registers for writability\n");
228 for (i = 0x1400; i < 0x160f; i++) {
229 stv06xx_read_bridge(sd, i, &data);
230 buf = data;
231
232 stv06xx_write_bridge(sd, i, 0xff);
233 stv06xx_read_bridge(sd, i, &data);
234 if (data == 0xff)
235 pr_info("Register 0x%x is read/write\n", i);
236 else if (data != buf)
237 pr_info("Register 0x%x is read/write, but only partially\n",
238 i);
239 else
240 pr_info("Register 0x%x is read-only\n", i);
241
242 stv06xx_write_bridge(sd, i, buf);
243 }
244 }
245
246 /* this function is called at probe and resume time */
stv06xx_init(struct gspca_dev * gspca_dev)247 static int stv06xx_init(struct gspca_dev *gspca_dev)
248 {
249 struct sd *sd = (struct sd *) gspca_dev;
250 int err;
251
252 PDEBUG(D_PROBE, "Initializing camera");
253
254 /* Let the usb init settle for a bit
255 before performing the initialization */
256 msleep(250);
257
258 err = sd->sensor->init(sd);
259
260 if (dump_sensor && sd->sensor->dump)
261 sd->sensor->dump(sd);
262
263 return (err < 0) ? err : 0;
264 }
265
266 /* this function is called at probe time */
stv06xx_init_controls(struct gspca_dev * gspca_dev)267 static int stv06xx_init_controls(struct gspca_dev *gspca_dev)
268 {
269 struct sd *sd = (struct sd *) gspca_dev;
270
271 PDEBUG(D_PROBE, "Initializing controls");
272
273 gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler;
274 return sd->sensor->init_controls(sd);
275 }
276
277 /* Start the camera */
stv06xx_start(struct gspca_dev * gspca_dev)278 static int stv06xx_start(struct gspca_dev *gspca_dev)
279 {
280 struct sd *sd = (struct sd *) gspca_dev;
281 struct usb_host_interface *alt;
282 struct usb_interface *intf;
283 int err, packet_size;
284
285 intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
286 alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
287 if (!alt) {
288 PERR("Couldn't get altsetting");
289 return -EIO;
290 }
291
292 if (alt->desc.bNumEndpoints < 1)
293 return -ENODEV;
294
295 packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
296 err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
297 if (err < 0)
298 return err;
299
300 /* Prepare the sensor for start */
301 err = sd->sensor->start(sd);
302 if (err < 0)
303 goto out;
304
305 /* Start isochronous streaming */
306 err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
307
308 out:
309 if (err < 0)
310 PDEBUG(D_STREAM, "Starting stream failed");
311 else
312 PDEBUG(D_STREAM, "Started streaming");
313
314 return (err < 0) ? err : 0;
315 }
316
stv06xx_isoc_init(struct gspca_dev * gspca_dev)317 static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
318 {
319 struct usb_interface_cache *intfc;
320 struct usb_host_interface *alt;
321 struct sd *sd = (struct sd *) gspca_dev;
322
323 intfc = gspca_dev->dev->actconfig->intf_cache[0];
324
325 if (intfc->num_altsetting < 2)
326 return -ENODEV;
327
328 alt = &intfc->altsetting[1];
329
330 if (alt->desc.bNumEndpoints < 1)
331 return -ENODEV;
332
333 /* Start isoc bandwidth "negotiation" at max isoc bandwidth */
334 alt->endpoint[0].desc.wMaxPacketSize =
335 cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
336
337 return 0;
338 }
339
stv06xx_isoc_nego(struct gspca_dev * gspca_dev)340 static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
341 {
342 int ret, packet_size, min_packet_size;
343 struct usb_host_interface *alt;
344 struct sd *sd = (struct sd *) gspca_dev;
345
346 /*
347 * Existence of altsetting and endpoint was verified in
348 * stv06xx_isoc_init()
349 */
350 alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
351 packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
352 min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
353 if (packet_size <= min_packet_size)
354 return -EIO;
355
356 packet_size -= 100;
357 if (packet_size < min_packet_size)
358 packet_size = min_packet_size;
359 alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
360
361 ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
362 if (ret < 0)
363 PERR("set alt 1 err %d", ret);
364
365 return ret;
366 }
367
stv06xx_stopN(struct gspca_dev * gspca_dev)368 static void stv06xx_stopN(struct gspca_dev *gspca_dev)
369 {
370 int err;
371 struct sd *sd = (struct sd *) gspca_dev;
372
373 /* stop ISO-streaming */
374 err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
375 if (err < 0)
376 goto out;
377
378 err = sd->sensor->stop(sd);
379
380 out:
381 if (err < 0)
382 PDEBUG(D_STREAM, "Failed to stop stream");
383 else
384 PDEBUG(D_STREAM, "Stopped streaming");
385 }
386
387 /*
388 * Analyse an USB packet of the data stream and store it appropriately.
389 * Each packet contains an integral number of chunks. Each chunk has
390 * 2-bytes identification, followed by 2-bytes that describe the chunk
391 * length. Known/guessed chunk identifications are:
392 * 8001/8005/C001/C005 - Begin new frame
393 * 8002/8006/C002/C006 - End frame
394 * 0200/4200 - Contains actual image data, bayer or compressed
395 * 0005 - 11 bytes of unknown data
396 * 0100 - 2 bytes of unknown data
397 * The 0005 and 0100 chunks seem to appear only in compressed stream.
398 */
stv06xx_pkt_scan(struct gspca_dev * gspca_dev,u8 * data,int len)399 static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
400 u8 *data, /* isoc packet */
401 int len) /* iso packet length */
402 {
403 struct sd *sd = (struct sd *) gspca_dev;
404
405 PDEBUG(D_PACK, "Packet of length %d arrived", len);
406
407 /* A packet may contain several frames
408 loop until the whole packet is reached */
409 while (len) {
410 int id, chunk_len;
411
412 if (len < 4) {
413 PDEBUG(D_PACK, "Packet is smaller than 4 bytes");
414 return;
415 }
416
417 /* Capture the id */
418 id = (data[0] << 8) | data[1];
419
420 /* Capture the chunk length */
421 chunk_len = (data[2] << 8) | data[3];
422 PDEBUG(D_PACK, "Chunk id: %x, length: %d", id, chunk_len);
423
424 data += 4;
425 len -= 4;
426
427 if (len < chunk_len) {
428 PERR("URB packet length is smaller than the specified chunk length");
429 gspca_dev->last_packet_type = DISCARD_PACKET;
430 return;
431 }
432
433 /* First byte seem to be 02=data 2nd byte is unknown??? */
434 if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
435 goto frame_data;
436
437 switch (id) {
438 case 0x0200:
439 case 0x4200:
440 frame_data:
441 PDEBUG(D_PACK, "Frame data packet detected");
442
443 if (sd->to_skip) {
444 int skip = (sd->to_skip < chunk_len) ?
445 sd->to_skip : chunk_len;
446 data += skip;
447 len -= skip;
448 chunk_len -= skip;
449 sd->to_skip -= skip;
450 }
451
452 gspca_frame_add(gspca_dev, INTER_PACKET,
453 data, chunk_len);
454 break;
455
456 case 0x8001:
457 case 0x8005:
458 case 0xc001:
459 case 0xc005:
460 PDEBUG(D_PACK, "Starting new frame");
461
462 /* Create a new frame, chunk length should be zero */
463 gspca_frame_add(gspca_dev, FIRST_PACKET,
464 NULL, 0);
465
466 if (sd->bridge == BRIDGE_ST6422)
467 sd->to_skip = gspca_dev->pixfmt.width * 4;
468
469 if (chunk_len)
470 PERR("Chunk length is non-zero on a SOF");
471 break;
472
473 case 0x8002:
474 case 0x8006:
475 case 0xc002:
476 PDEBUG(D_PACK, "End of frame detected");
477
478 /* Complete the last frame (if any) */
479 gspca_frame_add(gspca_dev, LAST_PACKET,
480 NULL, 0);
481
482 if (chunk_len)
483 PERR("Chunk length is non-zero on a EOF");
484 break;
485
486 case 0x0005:
487 PDEBUG(D_PACK, "Chunk 0x005 detected");
488 /* Unknown chunk with 11 bytes of data,
489 occurs just before end of each frame
490 in compressed mode */
491 break;
492
493 case 0x0100:
494 PDEBUG(D_PACK, "Chunk 0x0100 detected");
495 /* Unknown chunk with 2 bytes of data,
496 occurs 2-3 times per USB interrupt */
497 break;
498 case 0x42ff:
499 PDEBUG(D_PACK, "Chunk 0x42ff detected");
500 /* Special chunk seen sometimes on the ST6422 */
501 break;
502 default:
503 PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id);
504 /* Unknown chunk */
505 }
506 data += chunk_len;
507 len -= chunk_len;
508 }
509 }
510
511 #if IS_ENABLED(CONFIG_INPUT)
sd_int_pkt_scan(struct gspca_dev * gspca_dev,u8 * data,int len)512 static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
513 u8 *data, /* interrupt packet data */
514 int len) /* interrupt packet length */
515 {
516 int ret = -EINVAL;
517
518 if (len == 1 && (data[0] == 0x80 || data[0] == 0x10)) {
519 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
520 input_sync(gspca_dev->input_dev);
521 ret = 0;
522 }
523
524 if (len == 1 && (data[0] == 0x88 || data[0] == 0x11)) {
525 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
526 input_sync(gspca_dev->input_dev);
527 ret = 0;
528 }
529
530 return ret;
531 }
532 #endif
533
534 static int stv06xx_config(struct gspca_dev *gspca_dev,
535 const struct usb_device_id *id);
536
537 /* sub-driver description */
538 static const struct sd_desc sd_desc = {
539 .name = MODULE_NAME,
540 .config = stv06xx_config,
541 .init = stv06xx_init,
542 .init_controls = stv06xx_init_controls,
543 .start = stv06xx_start,
544 .stopN = stv06xx_stopN,
545 .pkt_scan = stv06xx_pkt_scan,
546 .isoc_init = stv06xx_isoc_init,
547 .isoc_nego = stv06xx_isoc_nego,
548 #if IS_ENABLED(CONFIG_INPUT)
549 .int_pkt_scan = sd_int_pkt_scan,
550 #endif
551 };
552
553 /* This function is called at probe time */
stv06xx_config(struct gspca_dev * gspca_dev,const struct usb_device_id * id)554 static int stv06xx_config(struct gspca_dev *gspca_dev,
555 const struct usb_device_id *id)
556 {
557 struct sd *sd = (struct sd *) gspca_dev;
558
559 PDEBUG(D_PROBE, "Configuring camera");
560
561 sd->bridge = id->driver_info;
562 gspca_dev->sd_desc = &sd_desc;
563
564 if (dump_bridge)
565 stv06xx_dump_bridge(sd);
566
567 sd->sensor = &stv06xx_sensor_st6422;
568 if (!sd->sensor->probe(sd))
569 return 0;
570
571 sd->sensor = &stv06xx_sensor_vv6410;
572 if (!sd->sensor->probe(sd))
573 return 0;
574
575 sd->sensor = &stv06xx_sensor_hdcs1x00;
576 if (!sd->sensor->probe(sd))
577 return 0;
578
579 sd->sensor = &stv06xx_sensor_hdcs1020;
580 if (!sd->sensor->probe(sd))
581 return 0;
582
583 sd->sensor = &stv06xx_sensor_pb0100;
584 if (!sd->sensor->probe(sd))
585 return 0;
586
587 sd->sensor = NULL;
588 return -ENODEV;
589 }
590
591
592
593 /* -- module initialisation -- */
594 static const struct usb_device_id device_table[] = {
595 {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 }, /* QuickCam Express */
596 {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 }, /* LEGO cam / QuickCam Web */
597 {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 }, /* Dexxa WebCam USB */
598 {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 }, /* QuickCam Messenger */
599 {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 }, /* QuickCam Communicate */
600 {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 }, /* QuickCam Messenger (new) */
601 {}
602 };
603 MODULE_DEVICE_TABLE(usb, device_table);
604
605 /* -- device connect -- */
sd_probe(struct usb_interface * intf,const struct usb_device_id * id)606 static int sd_probe(struct usb_interface *intf,
607 const struct usb_device_id *id)
608 {
609 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
610 THIS_MODULE);
611 }
612
sd_disconnect(struct usb_interface * intf)613 static void sd_disconnect(struct usb_interface *intf)
614 {
615 struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
616 struct sd *sd = (struct sd *) gspca_dev;
617 void *priv = sd->sensor_priv;
618 PDEBUG(D_PROBE, "Disconnecting the stv06xx device");
619
620 sd->sensor = NULL;
621 gspca_disconnect(intf);
622 kfree(priv);
623 }
624
625 static struct usb_driver sd_driver = {
626 .name = MODULE_NAME,
627 .id_table = device_table,
628 .probe = sd_probe,
629 .disconnect = sd_disconnect,
630 #ifdef CONFIG_PM
631 .suspend = gspca_suspend,
632 .resume = gspca_resume,
633 .reset_resume = gspca_resume,
634 #endif
635 };
636
637 module_usb_driver(sd_driver);
638
639 module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
640 MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
641
642 module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
643 MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");
644