cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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stv06xx.c (17362B)


      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
      4 *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
      5 * Copyright (c) 2002, 2003 Tuukka Toivonen
      6 * Copyright (c) 2008 Erik Andrén
      7 *
      8 * P/N 861037:      Sensor HDCS1000        ASIC STV0600
      9 * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
     10 * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
     11 * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
     12 * P/N 861075-0040: Sensor HDCS1000        ASIC
     13 * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
     14 * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
     15 */
     16
     17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
     18
     19#include <linux/input.h>
     20#include "stv06xx_sensor.h"
     21
     22MODULE_AUTHOR("Erik Andrén");
     23MODULE_DESCRIPTION("STV06XX USB Camera Driver");
     24MODULE_LICENSE("GPL");
     25
     26static bool dump_bridge;
     27static bool dump_sensor;
     28
     29int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data)
     30{
     31	int err;
     32	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
     33	struct usb_device *udev = sd->gspca_dev.dev;
     34	__u8 *buf = sd->gspca_dev.usb_buf;
     35
     36	u8 len = (i2c_data > 0xff) ? 2 : 1;
     37
     38	buf[0] = i2c_data & 0xff;
     39	buf[1] = (i2c_data >> 8) & 0xff;
     40
     41	err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
     42			      0x04, 0x40, address, 0, buf, len,
     43			      STV06XX_URB_MSG_TIMEOUT);
     44
     45	gspca_dbg(gspca_dev, D_CONF, "Written 0x%x to address 0x%x, status: %d\n",
     46		  i2c_data, address, err);
     47
     48	return (err < 0) ? err : 0;
     49}
     50
     51int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data)
     52{
     53	int err;
     54	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
     55	struct usb_device *udev = sd->gspca_dev.dev;
     56	__u8 *buf = sd->gspca_dev.usb_buf;
     57
     58	err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
     59			      0x04, 0xc0, address, 0, buf, 1,
     60			      STV06XX_URB_MSG_TIMEOUT);
     61
     62	*i2c_data = buf[0];
     63
     64	gspca_dbg(gspca_dev, D_CONF, "Reading 0x%x from address 0x%x, status %d\n",
     65		  *i2c_data, address, err);
     66
     67	return (err < 0) ? err : 0;
     68}
     69
     70/* Wraps the normal write sensor bytes / words functions for writing a
     71   single value */
     72int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value)
     73{
     74	if (sd->sensor->i2c_len == 2) {
     75		u16 data[2] = { address, value };
     76		return stv06xx_write_sensor_words(sd, data, 1);
     77	} else {
     78		u8 data[2] = { address, value };
     79		return stv06xx_write_sensor_bytes(sd, data, 1);
     80	}
     81}
     82
     83static int stv06xx_write_sensor_finish(struct sd *sd)
     84{
     85	int err = 0;
     86
     87	if (sd->bridge == BRIDGE_STV610) {
     88		struct usb_device *udev = sd->gspca_dev.dev;
     89		__u8 *buf = sd->gspca_dev.usb_buf;
     90
     91		buf[0] = 0;
     92		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
     93				      0x04, 0x40, 0x1704, 0, buf, 1,
     94				      STV06XX_URB_MSG_TIMEOUT);
     95	}
     96
     97	return (err < 0) ? err : 0;
     98}
     99
    100int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len)
    101{
    102	int err, i, j;
    103	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
    104	struct usb_device *udev = sd->gspca_dev.dev;
    105	__u8 *buf = sd->gspca_dev.usb_buf;
    106
    107	gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
    108		  len);
    109	for (i = 0; i < len;) {
    110		/* Build the command buffer */
    111		memset(buf, 0, I2C_BUFFER_LENGTH);
    112		for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
    113			buf[j] = data[2*i];
    114			buf[0x10 + j] = data[2*i+1];
    115			gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%02x to reg 0x%02x\n",
    116				  data[2*i+1], data[2*i]);
    117		}
    118		buf[0x20] = sd->sensor->i2c_addr;
    119		buf[0x21] = j - 1; /* Number of commands to send - 1 */
    120		buf[0x22] = I2C_WRITE_CMD;
    121		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
    122				      0x04, 0x40, 0x0400, 0, buf,
    123				      I2C_BUFFER_LENGTH,
    124				      STV06XX_URB_MSG_TIMEOUT);
    125		if (err < 0)
    126			return err;
    127	}
    128	return stv06xx_write_sensor_finish(sd);
    129}
    130
    131int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
    132{
    133	int err, i, j;
    134	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
    135	struct usb_device *udev = sd->gspca_dev.dev;
    136	__u8 *buf = sd->gspca_dev.usb_buf;
    137
    138	gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
    139		  len);
    140
    141	for (i = 0; i < len;) {
    142		/* Build the command buffer */
    143		memset(buf, 0, I2C_BUFFER_LENGTH);
    144		for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
    145			buf[j] = data[2*i];
    146			buf[0x10 + j * 2] = data[2*i+1];
    147			buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
    148			gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%04x to reg 0x%02x\n",
    149				  data[2*i+1], data[2*i]);
    150		}
    151		buf[0x20] = sd->sensor->i2c_addr;
    152		buf[0x21] = j - 1; /* Number of commands to send - 1 */
    153		buf[0x22] = I2C_WRITE_CMD;
    154		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
    155				0x04, 0x40, 0x0400, 0, buf,
    156				I2C_BUFFER_LENGTH,
    157				STV06XX_URB_MSG_TIMEOUT);
    158		if (err < 0)
    159			return err;
    160	}
    161	return stv06xx_write_sensor_finish(sd);
    162}
    163
    164int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
    165{
    166	int err;
    167	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
    168	struct usb_device *udev = sd->gspca_dev.dev;
    169	__u8 *buf = sd->gspca_dev.usb_buf;
    170
    171	err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
    172	if (err < 0)
    173		return err;
    174
    175	/* Clear mem */
    176	memset(buf, 0, I2C_BUFFER_LENGTH);
    177
    178	buf[0] = address;
    179	buf[0x20] = sd->sensor->i2c_addr;
    180	buf[0x21] = 0;
    181
    182	/* Read I2C register */
    183	buf[0x22] = I2C_READ_CMD;
    184
    185	err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
    186			      0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
    187			      STV06XX_URB_MSG_TIMEOUT);
    188	if (err < 0) {
    189		pr_err("I2C: Read error writing address: %d\n", err);
    190		return err;
    191	}
    192
    193	err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
    194			      0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
    195			      STV06XX_URB_MSG_TIMEOUT);
    196	if (sd->sensor->i2c_len == 2)
    197		*value = buf[0] | (buf[1] << 8);
    198	else
    199		*value = buf[0];
    200
    201	gspca_dbg(gspca_dev, D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d\n",
    202		  *value, address, err);
    203
    204	return (err < 0) ? err : 0;
    205}
    206
    207/* Dumps all bridge registers */
    208static void stv06xx_dump_bridge(struct sd *sd)
    209{
    210	int i;
    211	u8 data, buf;
    212
    213	pr_info("Dumping all stv06xx bridge registers\n");
    214	for (i = 0x1400; i < 0x160f; i++) {
    215		stv06xx_read_bridge(sd, i, &data);
    216
    217		pr_info("Read 0x%x from address 0x%x\n", data, i);
    218	}
    219
    220	pr_info("Testing stv06xx bridge registers for writability\n");
    221	for (i = 0x1400; i < 0x160f; i++) {
    222		stv06xx_read_bridge(sd, i, &data);
    223		buf = data;
    224
    225		stv06xx_write_bridge(sd, i, 0xff);
    226		stv06xx_read_bridge(sd, i, &data);
    227		if (data == 0xff)
    228			pr_info("Register 0x%x is read/write\n", i);
    229		else if (data != buf)
    230			pr_info("Register 0x%x is read/write, but only partially\n",
    231				i);
    232		else
    233			pr_info("Register 0x%x is read-only\n", i);
    234
    235		stv06xx_write_bridge(sd, i, buf);
    236	}
    237}
    238
    239/* this function is called at probe and resume time */
    240static int stv06xx_init(struct gspca_dev *gspca_dev)
    241{
    242	struct sd *sd = (struct sd *) gspca_dev;
    243	int err;
    244
    245	gspca_dbg(gspca_dev, D_PROBE, "Initializing camera\n");
    246
    247	/* Let the usb init settle for a bit
    248	   before performing the initialization */
    249	msleep(250);
    250
    251	err = sd->sensor->init(sd);
    252
    253	if (dump_sensor && sd->sensor->dump)
    254		sd->sensor->dump(sd);
    255
    256	return (err < 0) ? err : 0;
    257}
    258
    259/* this function is called at probe time */
    260static int stv06xx_init_controls(struct gspca_dev *gspca_dev)
    261{
    262	struct sd *sd = (struct sd *) gspca_dev;
    263
    264	gspca_dbg(gspca_dev, D_PROBE, "Initializing controls\n");
    265
    266	gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler;
    267	return sd->sensor->init_controls(sd);
    268}
    269
    270/* Start the camera */
    271static int stv06xx_start(struct gspca_dev *gspca_dev)
    272{
    273	struct sd *sd = (struct sd *) gspca_dev;
    274	struct usb_host_interface *alt;
    275	struct usb_interface *intf;
    276	int err, packet_size;
    277
    278	intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
    279	alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
    280	if (!alt) {
    281		gspca_err(gspca_dev, "Couldn't get altsetting\n");
    282		return -EIO;
    283	}
    284
    285	if (alt->desc.bNumEndpoints < 1)
    286		return -ENODEV;
    287
    288	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
    289	err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
    290	if (err < 0)
    291		return err;
    292
    293	/* Prepare the sensor for start */
    294	err = sd->sensor->start(sd);
    295	if (err < 0)
    296		goto out;
    297
    298	/* Start isochronous streaming */
    299	err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
    300
    301out:
    302	if (err < 0)
    303		gspca_dbg(gspca_dev, D_STREAM, "Starting stream failed\n");
    304	else
    305		gspca_dbg(gspca_dev, D_STREAM, "Started streaming\n");
    306
    307	return (err < 0) ? err : 0;
    308}
    309
    310static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
    311{
    312	struct usb_interface_cache *intfc;
    313	struct usb_host_interface *alt;
    314	struct sd *sd = (struct sd *) gspca_dev;
    315
    316	intfc = gspca_dev->dev->actconfig->intf_cache[0];
    317
    318	if (intfc->num_altsetting < 2)
    319		return -ENODEV;
    320
    321	alt = &intfc->altsetting[1];
    322
    323	if (alt->desc.bNumEndpoints < 1)
    324		return -ENODEV;
    325
    326	/* Start isoc bandwidth "negotiation" at max isoc bandwidth */
    327	alt->endpoint[0].desc.wMaxPacketSize =
    328		cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
    329
    330	return 0;
    331}
    332
    333static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
    334{
    335	int ret, packet_size, min_packet_size;
    336	struct usb_host_interface *alt;
    337	struct sd *sd = (struct sd *) gspca_dev;
    338
    339	/*
    340	 * Existence of altsetting and endpoint was verified in
    341	 * stv06xx_isoc_init()
    342	 */
    343	alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
    344	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
    345	min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
    346	if (packet_size <= min_packet_size)
    347		return -EIO;
    348
    349	packet_size -= 100;
    350	if (packet_size < min_packet_size)
    351		packet_size = min_packet_size;
    352	alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
    353
    354	ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
    355	if (ret < 0)
    356		gspca_err(gspca_dev, "set alt 1 err %d\n", ret);
    357
    358	return ret;
    359}
    360
    361static void stv06xx_stopN(struct gspca_dev *gspca_dev)
    362{
    363	int err;
    364	struct sd *sd = (struct sd *) gspca_dev;
    365
    366	/* stop ISO-streaming */
    367	err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
    368	if (err < 0)
    369		goto out;
    370
    371	err = sd->sensor->stop(sd);
    372
    373out:
    374	if (err < 0)
    375		gspca_dbg(gspca_dev, D_STREAM, "Failed to stop stream\n");
    376	else
    377		gspca_dbg(gspca_dev, D_STREAM, "Stopped streaming\n");
    378}
    379
    380/*
    381 * Analyse an USB packet of the data stream and store it appropriately.
    382 * Each packet contains an integral number of chunks. Each chunk has
    383 * 2-bytes identification, followed by 2-bytes that describe the chunk
    384 * length. Known/guessed chunk identifications are:
    385 * 8001/8005/C001/C005 - Begin new frame
    386 * 8002/8006/C002/C006 - End frame
    387 * 0200/4200           - Contains actual image data, bayer or compressed
    388 * 0005                - 11 bytes of unknown data
    389 * 0100                - 2 bytes of unknown data
    390 * The 0005 and 0100 chunks seem to appear only in compressed stream.
    391 */
    392static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
    393			u8 *data,			/* isoc packet */
    394			int len)			/* iso packet length */
    395{
    396	struct sd *sd = (struct sd *) gspca_dev;
    397
    398	gspca_dbg(gspca_dev, D_PACK, "Packet of length %d arrived\n", len);
    399
    400	/* A packet may contain several frames
    401	   loop until the whole packet is reached */
    402	while (len) {
    403		int id, chunk_len;
    404
    405		if (len < 4) {
    406			gspca_dbg(gspca_dev, D_PACK, "Packet is smaller than 4 bytes\n");
    407			return;
    408		}
    409
    410		/* Capture the id */
    411		id = (data[0] << 8) | data[1];
    412
    413		/* Capture the chunk length */
    414		chunk_len = (data[2] << 8) | data[3];
    415		gspca_dbg(gspca_dev, D_PACK, "Chunk id: %x, length: %d\n",
    416			  id, chunk_len);
    417
    418		data += 4;
    419		len -= 4;
    420
    421		if (len < chunk_len) {
    422			gspca_err(gspca_dev, "URB packet length is smaller than the specified chunk length\n");
    423			gspca_dev->last_packet_type = DISCARD_PACKET;
    424			return;
    425		}
    426
    427		/* First byte seem to be 02=data 2nd byte is unknown??? */
    428		if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
    429			goto frame_data;
    430
    431		switch (id) {
    432		case 0x0200:
    433		case 0x4200:
    434frame_data:
    435			gspca_dbg(gspca_dev, D_PACK, "Frame data packet detected\n");
    436
    437			if (sd->to_skip) {
    438				int skip = (sd->to_skip < chunk_len) ?
    439					    sd->to_skip : chunk_len;
    440				data += skip;
    441				len -= skip;
    442				chunk_len -= skip;
    443				sd->to_skip -= skip;
    444			}
    445
    446			gspca_frame_add(gspca_dev, INTER_PACKET,
    447					data, chunk_len);
    448			break;
    449
    450		case 0x8001:
    451		case 0x8005:
    452		case 0xc001:
    453		case 0xc005:
    454			gspca_dbg(gspca_dev, D_PACK, "Starting new frame\n");
    455
    456			/* Create a new frame, chunk length should be zero */
    457			gspca_frame_add(gspca_dev, FIRST_PACKET,
    458					NULL, 0);
    459
    460			if (sd->bridge == BRIDGE_ST6422)
    461				sd->to_skip = gspca_dev->pixfmt.width * 4;
    462
    463			if (chunk_len)
    464				gspca_err(gspca_dev, "Chunk length is non-zero on a SOF\n");
    465			break;
    466
    467		case 0x8002:
    468		case 0x8006:
    469		case 0xc002:
    470			gspca_dbg(gspca_dev, D_PACK, "End of frame detected\n");
    471
    472			/* Complete the last frame (if any) */
    473			gspca_frame_add(gspca_dev, LAST_PACKET,
    474					NULL, 0);
    475
    476			if (chunk_len)
    477				gspca_err(gspca_dev, "Chunk length is non-zero on a EOF\n");
    478			break;
    479
    480		case 0x0005:
    481			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x005 detected\n");
    482			/* Unknown chunk with 11 bytes of data,
    483			   occurs just before end of each frame
    484			   in compressed mode */
    485			break;
    486
    487		case 0x0100:
    488			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x0100 detected\n");
    489			/* Unknown chunk with 2 bytes of data,
    490			   occurs 2-3 times per USB interrupt */
    491			break;
    492		case 0x42ff:
    493			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x42ff detected\n");
    494			/* Special chunk seen sometimes on the ST6422 */
    495			break;
    496		default:
    497			gspca_dbg(gspca_dev, D_PACK, "Unknown chunk 0x%04x detected\n",
    498				  id);
    499			/* Unknown chunk */
    500		}
    501		data    += chunk_len;
    502		len     -= chunk_len;
    503	}
    504}
    505
    506#if IS_ENABLED(CONFIG_INPUT)
    507static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
    508			u8 *data,		/* interrupt packet data */
    509			int len)		/* interrupt packet length */
    510{
    511	int ret = -EINVAL;
    512
    513	if (len == 1 && (data[0] == 0x80 || data[0] == 0x10)) {
    514		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
    515		input_sync(gspca_dev->input_dev);
    516		ret = 0;
    517	}
    518
    519	if (len == 1 && (data[0] == 0x88 || data[0] == 0x11)) {
    520		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
    521		input_sync(gspca_dev->input_dev);
    522		ret = 0;
    523	}
    524
    525	return ret;
    526}
    527#endif
    528
    529static int stv06xx_config(struct gspca_dev *gspca_dev,
    530			  const struct usb_device_id *id);
    531
    532static void stv06xx_probe_error(struct gspca_dev *gspca_dev)
    533{
    534	struct sd *sd = (struct sd *)gspca_dev;
    535
    536	kfree(sd->sensor_priv);
    537	sd->sensor_priv = NULL;
    538}
    539
    540/* sub-driver description */
    541static const struct sd_desc sd_desc = {
    542	.name = MODULE_NAME,
    543	.config = stv06xx_config,
    544	.init = stv06xx_init,
    545	.init_controls = stv06xx_init_controls,
    546	.probe_error = stv06xx_probe_error,
    547	.start = stv06xx_start,
    548	.stopN = stv06xx_stopN,
    549	.pkt_scan = stv06xx_pkt_scan,
    550	.isoc_init = stv06xx_isoc_init,
    551	.isoc_nego = stv06xx_isoc_nego,
    552#if IS_ENABLED(CONFIG_INPUT)
    553	.int_pkt_scan = sd_int_pkt_scan,
    554#endif
    555};
    556
    557/* This function is called at probe time */
    558static int stv06xx_config(struct gspca_dev *gspca_dev,
    559			  const struct usb_device_id *id)
    560{
    561	struct sd *sd = (struct sd *) gspca_dev;
    562
    563	gspca_dbg(gspca_dev, D_PROBE, "Configuring camera\n");
    564
    565	sd->bridge = id->driver_info;
    566	gspca_dev->sd_desc = &sd_desc;
    567
    568	if (dump_bridge)
    569		stv06xx_dump_bridge(sd);
    570
    571	sd->sensor = &stv06xx_sensor_st6422;
    572	if (!sd->sensor->probe(sd))
    573		return 0;
    574
    575	sd->sensor = &stv06xx_sensor_vv6410;
    576	if (!sd->sensor->probe(sd))
    577		return 0;
    578
    579	sd->sensor = &stv06xx_sensor_hdcs1x00;
    580	if (!sd->sensor->probe(sd))
    581		return 0;
    582
    583	sd->sensor = &stv06xx_sensor_hdcs1020;
    584	if (!sd->sensor->probe(sd))
    585		return 0;
    586
    587	sd->sensor = &stv06xx_sensor_pb0100;
    588	if (!sd->sensor->probe(sd))
    589		return 0;
    590
    591	sd->sensor = NULL;
    592	return -ENODEV;
    593}
    594
    595
    596
    597/* -- module initialisation -- */
    598static const struct usb_device_id device_table[] = {
    599	{USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },	/* QuickCam Express */
    600	{USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },	/* LEGO cam / QuickCam Web */
    601	{USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },	/* Dexxa WebCam USB */
    602	{USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },	/* QuickCam Messenger */
    603	{USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },	/* QuickCam Communicate */
    604	{USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },	/* QuickCam Messenger (new) */
    605	{}
    606};
    607MODULE_DEVICE_TABLE(usb, device_table);
    608
    609/* -- device connect -- */
    610static int sd_probe(struct usb_interface *intf,
    611			const struct usb_device_id *id)
    612{
    613	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
    614			       THIS_MODULE);
    615}
    616
    617static void sd_disconnect(struct usb_interface *intf)
    618{
    619	struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
    620	struct sd *sd = (struct sd *) gspca_dev;
    621	void *priv = sd->sensor_priv;
    622	gspca_dbg(gspca_dev, D_PROBE, "Disconnecting the stv06xx device\n");
    623
    624	sd->sensor = NULL;
    625	gspca_disconnect(intf);
    626	kfree(priv);
    627}
    628
    629static struct usb_driver sd_driver = {
    630	.name = MODULE_NAME,
    631	.id_table = device_table,
    632	.probe = sd_probe,
    633	.disconnect = sd_disconnect,
    634#ifdef CONFIG_PM
    635	.suspend = gspca_suspend,
    636	.resume = gspca_resume,
    637	.reset_resume = gspca_resume,
    638#endif
    639};
    640
    641module_usb_driver(sd_driver);
    642
    643module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
    644MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
    645
    646module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
    647MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");