Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

13 files changed, 2950 insertions, 0 deletions

diff --git a/drivers/media/usb/gspca/stv06xx/Kconfig b/drivers/media/usb/gspca/stv06xx/Kconfig
new file mode 100644
index 000000000..59373659a
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/Kconfig
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config USB_STV06XX
+	tristate "STV06XX USB Camera Driver"
+	depends on USB_GSPCA
+	help
+	  Say Y here if you want support for cameras based on
+	  the ST STV06XX chip.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_stv06xx.
diff --git a/drivers/media/usb/gspca/stv06xx/Makefile b/drivers/media/usb/gspca/stv06xx/Makefile
new file mode 100644
index 000000000..c4d7206e0
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_USB_STV06XX) += gspca_stv06xx.o
+
+gspca_stv06xx-objs := stv06xx.o \
+		      stv06xx_vv6410.o \
+		      stv06xx_hdcs.o \
+		      stv06xx_pb0100.o \
+		      stv06xx_st6422.o
+
+ccflags-y += -I$(srctree)/drivers/media/usb/gspca
+
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx.c b/drivers/media/usb/gspca/stv06xx/stv06xx.c
new file mode 100644
index 000000000..d9bc2aacc
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx.c
@@ -0,0 +1,647 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/input.h>
+#include "stv06xx_sensor.h"
+
+MODULE_AUTHOR("Erik Andrén");
+MODULE_DESCRIPTION("STV06XX USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+static bool dump_bridge;
+static bool dump_sensor;
+
+int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data)
+{
+	int err;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	u8 len = (i2c_data > 0xff) ? 2 : 1;
+
+	buf[0] = i2c_data & 0xff;
+	buf[1] = (i2c_data >> 8) & 0xff;
+
+	err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+			      0x04, 0x40, address, 0, buf, len,
+			      STV06XX_URB_MSG_TIMEOUT);
+
+	gspca_dbg(gspca_dev, D_CONF, "Written 0x%x to address 0x%x, status: %d\n",
+		  i2c_data, address, err);
+
+	return (err < 0) ? err : 0;
+}
+
+int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data)
+{
+	int err;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+			      0x04, 0xc0, address, 0, buf, 1,
+			      STV06XX_URB_MSG_TIMEOUT);
+
+	*i2c_data = buf[0];
+
+	gspca_dbg(gspca_dev, D_CONF, "Reading 0x%x from address 0x%x, status %d\n",
+		  *i2c_data, address, err);
+
+	return (err < 0) ? err : 0;
+}
+
+/* Wraps the normal write sensor bytes / words functions for writing a
+   single value */
+int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value)
+{
+	if (sd->sensor->i2c_len == 2) {
+		u16 data[2] = { address, value };
+		return stv06xx_write_sensor_words(sd, data, 1);
+	} else {
+		u8 data[2] = { address, value };
+		return stv06xx_write_sensor_bytes(sd, data, 1);
+	}
+}
+
+static int stv06xx_write_sensor_finish(struct sd *sd)
+{
+	int err = 0;
+
+	if (sd->bridge == BRIDGE_STV610) {
+		struct usb_device *udev = sd->gspca_dev.dev;
+		__u8 *buf = sd->gspca_dev.usb_buf;
+
+		buf[0] = 0;
+		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				      0x04, 0x40, 0x1704, 0, buf, 1,
+				      STV06XX_URB_MSG_TIMEOUT);
+	}
+
+	return (err < 0) ? err : 0;
+}
+
+int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len)
+{
+	int err, i, j;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
+		  len);
+	for (i = 0; i < len;) {
+		/* Build the command buffer */
+		memset(buf, 0, I2C_BUFFER_LENGTH);
+		for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
+			buf[j] = data[2*i];
+			buf[0x10 + j] = data[2*i+1];
+			gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%02x to reg 0x%02x\n",
+				  data[2*i+1], data[2*i]);
+		}
+		buf[0x20] = sd->sensor->i2c_addr;
+		buf[0x21] = j - 1; /* Number of commands to send - 1 */
+		buf[0x22] = I2C_WRITE_CMD;
+		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				      0x04, 0x40, 0x0400, 0, buf,
+				      I2C_BUFFER_LENGTH,
+				      STV06XX_URB_MSG_TIMEOUT);
+		if (err < 0)
+			return err;
+	}
+	return stv06xx_write_sensor_finish(sd);
+}
+
+int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
+{
+	int err, i, j;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	gspca_dbg(gspca_dev, D_CONF, "I2C: Command buffer contains %d entries\n",
+		  len);
+
+	for (i = 0; i < len;) {
+		/* Build the command buffer */
+		memset(buf, 0, I2C_BUFFER_LENGTH);
+		for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
+			buf[j] = data[2*i];
+			buf[0x10 + j * 2] = data[2*i+1];
+			buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
+			gspca_dbg(gspca_dev, D_CONF, "I2C: Writing 0x%04x to reg 0x%02x\n",
+				  data[2*i+1], data[2*i]);
+		}
+		buf[0x20] = sd->sensor->i2c_addr;
+		buf[0x21] = j - 1; /* Number of commands to send - 1 */
+		buf[0x22] = I2C_WRITE_CMD;
+		err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				0x04, 0x40, 0x0400, 0, buf,
+				I2C_BUFFER_LENGTH,
+				STV06XX_URB_MSG_TIMEOUT);
+		if (err < 0)
+			return err;
+	}
+	return stv06xx_write_sensor_finish(sd);
+}
+
+int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
+{
+	int err;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
+	if (err < 0)
+		return err;
+
+	/* Clear mem */
+	memset(buf, 0, I2C_BUFFER_LENGTH);
+
+	buf[0] = address;
+	buf[0x20] = sd->sensor->i2c_addr;
+	buf[0x21] = 0;
+
+	/* Read I2C register */
+	buf[0x22] = I2C_READ_CMD;
+
+	err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+			      0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
+			      STV06XX_URB_MSG_TIMEOUT);
+	if (err < 0) {
+		pr_err("I2C: Read error writing address: %d\n", err);
+		return err;
+	}
+
+	err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+			      0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
+			      STV06XX_URB_MSG_TIMEOUT);
+	if (sd->sensor->i2c_len == 2)
+		*value = buf[0] | (buf[1] << 8);
+	else
+		*value = buf[0];
+
+	gspca_dbg(gspca_dev, D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d\n",
+		  *value, address, err);
+
+	return (err < 0) ? err : 0;
+}
+
+/* Dumps all bridge registers */
+static void stv06xx_dump_bridge(struct sd *sd)
+{
+	int i;
+	u8 data, buf;
+
+	pr_info("Dumping all stv06xx bridge registers\n");
+	for (i = 0x1400; i < 0x160f; i++) {
+		stv06xx_read_bridge(sd, i, &data);
+
+		pr_info("Read 0x%x from address 0x%x\n", data, i);
+	}
+
+	pr_info("Testing stv06xx bridge registers for writability\n");
+	for (i = 0x1400; i < 0x160f; i++) {
+		stv06xx_read_bridge(sd, i, &data);
+		buf = data;
+
+		stv06xx_write_bridge(sd, i, 0xff);
+		stv06xx_read_bridge(sd, i, &data);
+		if (data == 0xff)
+			pr_info("Register 0x%x is read/write\n", i);
+		else if (data != buf)
+			pr_info("Register 0x%x is read/write, but only partially\n",
+				i);
+		else
+			pr_info("Register 0x%x is read-only\n", i);
+
+		stv06xx_write_bridge(sd, i, buf);
+	}
+}
+
+/* this function is called at probe and resume time */
+static int stv06xx_init(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int err;
+
+	gspca_dbg(gspca_dev, D_PROBE, "Initializing camera\n");
+
+	/* Let the usb init settle for a bit
+	   before performing the initialization */
+	msleep(250);
+
+	err = sd->sensor->init(sd);
+
+	if (dump_sensor && sd->sensor->dump)
+		sd->sensor->dump(sd);
+
+	return (err < 0) ? err : 0;
+}
+
+/* this function is called at probe time */
+static int stv06xx_init_controls(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_PROBE, "Initializing controls\n");
+
+	gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler;
+	return sd->sensor->init_controls(sd);
+}
+
+/* Start the camera */
+static int stv06xx_start(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct usb_host_interface *alt;
+	struct usb_interface *intf;
+	int err, packet_size;
+
+	intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
+	alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
+	if (!alt) {
+		gspca_err(gspca_dev, "Couldn't get altsetting\n");
+		return -EIO;
+	}
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
+	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
+	err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
+	if (err < 0)
+		return err;
+
+	/* Prepare the sensor for start */
+	err = sd->sensor->start(sd);
+	if (err < 0)
+		goto out;
+
+	/* Start isochronous streaming */
+	err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
+
+out:
+	if (err < 0)
+		gspca_dbg(gspca_dev, D_STREAM, "Starting stream failed\n");
+	else
+		gspca_dbg(gspca_dev, D_STREAM, "Started streaming\n");
+
+	return (err < 0) ? err : 0;
+}
+
+static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
+{
+	struct usb_interface_cache *intfc;
+	struct usb_host_interface *alt;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	intfc = gspca_dev->dev->actconfig->intf_cache[0];
+
+	if (intfc->num_altsetting < 2)
+		return -ENODEV;
+
+	alt = &intfc->altsetting[1];
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
+	/* Start isoc bandwidth "negotiation" at max isoc bandwidth */
+	alt->endpoint[0].desc.wMaxPacketSize =
+		cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
+
+	return 0;
+}
+
+static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
+{
+	int ret, packet_size, min_packet_size;
+	struct usb_host_interface *alt;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	/*
+	 * Existence of altsetting and endpoint was verified in
+	 * stv06xx_isoc_init()
+	 */
+	alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
+	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
+	min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
+	if (packet_size <= min_packet_size)
+		return -EIO;
+
+	packet_size -= 100;
+	if (packet_size < min_packet_size)
+		packet_size = min_packet_size;
+	alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
+
+	ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
+	if (ret < 0)
+		gspca_err(gspca_dev, "set alt 1 err %d\n", ret);
+
+	return ret;
+}
+
+static void stv06xx_stopN(struct gspca_dev *gspca_dev)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	/* stop ISO-streaming */
+	err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
+	if (err < 0)
+		goto out;
+
+	err = sd->sensor->stop(sd);
+
+out:
+	if (err < 0)
+		gspca_dbg(gspca_dev, D_STREAM, "Failed to stop stream\n");
+	else
+		gspca_dbg(gspca_dev, D_STREAM, "Stopped streaming\n");
+}
+
+/*
+ * Analyse an USB packet of the data stream and store it appropriately.
+ * Each packet contains an integral number of chunks. Each chunk has
+ * 2-bytes identification, followed by 2-bytes that describe the chunk
+ * length. Known/guessed chunk identifications are:
+ * 8001/8005/C001/C005 - Begin new frame
+ * 8002/8006/C002/C006 - End frame
+ * 0200/4200           - Contains actual image data, bayer or compressed
+ * 0005                - 11 bytes of unknown data
+ * 0100                - 2 bytes of unknown data
+ * The 0005 and 0100 chunks seem to appear only in compressed stream.
+ */
+static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
+			u8 *data,			/* isoc packet */
+			int len)			/* iso packet length */
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_PACK, "Packet of length %d arrived\n", len);
+
+	/* A packet may contain several frames
+	   loop until the whole packet is reached */
+	while (len) {
+		int id, chunk_len;
+
+		if (len < 4) {
+			gspca_dbg(gspca_dev, D_PACK, "Packet is smaller than 4 bytes\n");
+			return;
+		}
+
+		/* Capture the id */
+		id = (data[0] << 8) | data[1];
+
+		/* Capture the chunk length */
+		chunk_len = (data[2] << 8) | data[3];
+		gspca_dbg(gspca_dev, D_PACK, "Chunk id: %x, length: %d\n",
+			  id, chunk_len);
+
+		data += 4;
+		len -= 4;
+
+		if (len < chunk_len) {
+			gspca_err(gspca_dev, "URB packet length is smaller than the specified chunk length\n");
+			gspca_dev->last_packet_type = DISCARD_PACKET;
+			return;
+		}
+
+		/* First byte seem to be 02=data 2nd byte is unknown??? */
+		if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
+			goto frame_data;
+
+		switch (id) {
+		case 0x0200:
+		case 0x4200:
+frame_data:
+			gspca_dbg(gspca_dev, D_PACK, "Frame data packet detected\n");
+
+			if (sd->to_skip) {
+				int skip = (sd->to_skip < chunk_len) ?
+					    sd->to_skip : chunk_len;
+				data += skip;
+				len -= skip;
+				chunk_len -= skip;
+				sd->to_skip -= skip;
+			}
+
+			gspca_frame_add(gspca_dev, INTER_PACKET,
+					data, chunk_len);
+			break;
+
+		case 0x8001:
+		case 0x8005:
+		case 0xc001:
+		case 0xc005:
+			gspca_dbg(gspca_dev, D_PACK, "Starting new frame\n");
+
+			/* Create a new frame, chunk length should be zero */
+			gspca_frame_add(gspca_dev, FIRST_PACKET,
+					NULL, 0);
+
+			if (sd->bridge == BRIDGE_ST6422)
+				sd->to_skip = gspca_dev->pixfmt.width * 4;
+
+			if (chunk_len)
+				gspca_err(gspca_dev, "Chunk length is non-zero on a SOF\n");
+			break;
+
+		case 0x8002:
+		case 0x8006:
+		case 0xc002:
+			gspca_dbg(gspca_dev, D_PACK, "End of frame detected\n");
+
+			/* Complete the last frame (if any) */
+			gspca_frame_add(gspca_dev, LAST_PACKET,
+					NULL, 0);
+
+			if (chunk_len)
+				gspca_err(gspca_dev, "Chunk length is non-zero on a EOF\n");
+			break;
+
+		case 0x0005:
+			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x005 detected\n");
+			/* Unknown chunk with 11 bytes of data,
+			   occurs just before end of each frame
+			   in compressed mode */
+			break;
+
+		case 0x0100:
+			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x0100 detected\n");
+			/* Unknown chunk with 2 bytes of data,
+			   occurs 2-3 times per USB interrupt */
+			break;
+		case 0x42ff:
+			gspca_dbg(gspca_dev, D_PACK, "Chunk 0x42ff detected\n");
+			/* Special chunk seen sometimes on the ST6422 */
+			break;
+		default:
+			gspca_dbg(gspca_dev, D_PACK, "Unknown chunk 0x%04x detected\n",
+				  id);
+			/* Unknown chunk */
+		}
+		data    += chunk_len;
+		len     -= chunk_len;
+	}
+}
+
+#if IS_ENABLED(CONFIG_INPUT)
+static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
+			u8 *data,		/* interrupt packet data */
+			int len)		/* interrupt packet length */
+{
+	int ret = -EINVAL;
+
+	if (len == 1 && (data[0] == 0x80 || data[0] == 0x10)) {
+		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
+		input_sync(gspca_dev->input_dev);
+		ret = 0;
+	}
+
+	if (len == 1 && (data[0] == 0x88 || data[0] == 0x11)) {
+		input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
+		input_sync(gspca_dev->input_dev);
+		ret = 0;
+	}
+
+	return ret;
+}
+#endif
+
+static int stv06xx_config(struct gspca_dev *gspca_dev,
+			  const struct usb_device_id *id);
+
+static void stv06xx_probe_error(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *)gspca_dev;
+
+	kfree(sd->sensor_priv);
+	sd->sensor_priv = NULL;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+	.name = MODULE_NAME,
+	.config = stv06xx_config,
+	.init = stv06xx_init,
+	.init_controls = stv06xx_init_controls,
+	.probe_error = stv06xx_probe_error,
+	.start = stv06xx_start,
+	.stopN = stv06xx_stopN,
+	.pkt_scan = stv06xx_pkt_scan,
+	.isoc_init = stv06xx_isoc_init,
+	.isoc_nego = stv06xx_isoc_nego,
+#if IS_ENABLED(CONFIG_INPUT)
+	.int_pkt_scan = sd_int_pkt_scan,
+#endif
+};
+
+/* This function is called at probe time */
+static int stv06xx_config(struct gspca_dev *gspca_dev,
+			  const struct usb_device_id *id)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_PROBE, "Configuring camera\n");
+
+	sd->bridge = id->driver_info;
+	gspca_dev->sd_desc = &sd_desc;
+
+	if (dump_bridge)
+		stv06xx_dump_bridge(sd);
+
+	sd->sensor = &stv06xx_sensor_st6422;
+	if (!sd->sensor->probe(sd))
+		return 0;
+
+	sd->sensor = &stv06xx_sensor_vv6410;
+	if (!sd->sensor->probe(sd))
+		return 0;
+
+	sd->sensor = &stv06xx_sensor_hdcs1x00;
+	if (!sd->sensor->probe(sd))
+		return 0;
+
+	sd->sensor = &stv06xx_sensor_hdcs1020;
+	if (!sd->sensor->probe(sd))
+		return 0;
+
+	sd->sensor = &stv06xx_sensor_pb0100;
+	if (!sd->sensor->probe(sd))
+		return 0;
+
+	sd->sensor = NULL;
+	return -ENODEV;
+}
+
+
+
+/* -- module initialisation -- */
+static const struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },	/* QuickCam Express */
+	{USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },	/* LEGO cam / QuickCam Web */
+	{USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },	/* Dexxa WebCam USB */
+	{USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },	/* QuickCam Messenger */
+	{USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },	/* QuickCam Communicate */
+	{USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },	/* QuickCam Messenger (new) */
+	{}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+			       THIS_MODULE);
+}
+
+static void sd_disconnect(struct usb_interface *intf)
+{
+	struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
+	struct sd *sd = (struct sd *) gspca_dev;
+	void *priv = sd->sensor_priv;
+	gspca_dbg(gspca_dev, D_PROBE, "Disconnecting the stv06xx device\n");
+
+	sd->sensor = NULL;
+	gspca_disconnect(intf);
+	kfree(priv);
+}
+
+static struct usb_driver sd_driver = {
+	.name = MODULE_NAME,
+	.id_table = device_table,
+	.probe = sd_probe,
+	.disconnect = sd_disconnect,
+#ifdef CONFIG_PM
+	.suspend = gspca_suspend,
+	.resume = gspca_resume,
+	.reset_resume = gspca_resume,
+#endif
+};
+
+module_usb_driver(sd_driver);
+
+module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
+
+module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx.h b/drivers/media/usb/gspca/stv06xx/stv06xx.h
new file mode 100644
index 000000000..f6bafa982
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#ifndef STV06XX_H_
+#define STV06XX_H_
+
+#include <linux/slab.h>
+#include "gspca.h"
+
+#define MODULE_NAME "STV06xx"
+
+#define STV_ISOC_ENDPOINT_ADDR		0x81
+
+#define STV_R                           0x0509
+
+#define STV_REG23			0x0423
+
+/* Control registers of the STV0600 ASIC */
+#define STV_I2C_PARTNER			0x1420
+#define STV_I2C_VAL_REG_VAL_PAIRS_MIN1	0x1421
+#define STV_I2C_READ_WRITE_TOGGLE	0x1422
+#define STV_I2C_FLUSH			0x1423
+#define STV_I2C_SUCC_READ_REG_VALS	0x1424
+
+#define STV_ISO_ENABLE			0x1440
+#define STV_SCAN_RATE			0x1443
+#define STV_LED_CTRL			0x1445
+#define STV_STV0600_EMULATION		0x1446
+#define STV_REG00			0x1500
+#define STV_REG01			0x1501
+#define STV_REG02			0x1502
+#define STV_REG03			0x1503
+#define STV_REG04			0x1504
+
+#define STV_ISO_SIZE_L			0x15c1
+#define STV_ISO_SIZE_H			0x15c2
+
+/* Refers to the CIF 352x288 and QCIF 176x144 */
+/* 1: 288 lines, 2: 144 lines */
+#define STV_Y_CTRL			0x15c3
+
+#define STV_RESET                       0x1620
+
+/* 0xa: 352 columns, 0x6: 176 columns */
+#define STV_X_CTRL			0x1680
+
+#define STV06XX_URB_MSG_TIMEOUT		5000
+
+#define I2C_MAX_BYTES			16
+#define I2C_MAX_WORDS			8
+
+#define I2C_BUFFER_LENGTH		0x23
+#define I2C_READ_CMD			3
+#define I2C_WRITE_CMD			1
+
+#define LED_ON				1
+#define LED_OFF				0
+
+/* STV06xx device descriptor */
+struct sd {
+	struct gspca_dev gspca_dev;
+
+	/* A pointer to the currently connected sensor */
+	const struct stv06xx_sensor *sensor;
+
+	/* Sensor private data */
+	void *sensor_priv;
+
+	/* The first 4 lines produced by the stv6422 are no good, this keeps
+	   track of how many bytes we still need to skip during a frame */
+	int to_skip;
+
+	/* Bridge / Camera type */
+	u8 bridge;
+	#define BRIDGE_STV600 0
+	#define BRIDGE_STV602 1
+	#define BRIDGE_STV610 2
+	#define BRIDGE_ST6422 3 /* With integrated sensor */
+};
+
+int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
+int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
+
+int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
+int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
+
+int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
+int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);
+
+#endif
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c
new file mode 100644
index 000000000..5a47dcbf1
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c
@@ -0,0 +1,531 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ * Copyright (c) 2008 Chia-I Wu
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "stv06xx_hdcs.h"
+
+static struct v4l2_pix_format hdcs1x00_mode[] = {
+	{
+		HDCS_1X00_DEF_WIDTH,
+		HDCS_1X00_DEF_HEIGHT,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage =
+			HDCS_1X00_DEF_WIDTH * HDCS_1X00_DEF_HEIGHT,
+		.bytesperline = HDCS_1X00_DEF_WIDTH,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 1
+	}
+};
+
+static struct v4l2_pix_format hdcs1020_mode[] = {
+	{
+		HDCS_1020_DEF_WIDTH,
+		HDCS_1020_DEF_HEIGHT,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage =
+			HDCS_1020_DEF_WIDTH * HDCS_1020_DEF_HEIGHT,
+		.bytesperline = HDCS_1020_DEF_WIDTH,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 1
+	}
+};
+
+enum hdcs_power_state {
+	HDCS_STATE_SLEEP,
+	HDCS_STATE_IDLE,
+	HDCS_STATE_RUN
+};
+
+/* no lock? */
+struct hdcs {
+	enum hdcs_power_state state;
+	int w, h;
+
+	/* visible area of the sensor array */
+	struct {
+		int left, top;
+		int width, height;
+		int border;
+	} array;
+
+	struct {
+		/* Column timing overhead */
+		u8 cto;
+		/* Column processing overhead */
+		u8 cpo;
+		/* Row sample period constant */
+		u16 rs;
+		/* Exposure reset duration */
+		u16 er;
+	} exp;
+
+	int psmp;
+};
+
+static int hdcs_reg_write_seq(struct sd *sd, u8 reg, u8 *vals, u8 len)
+{
+	u8 regs[I2C_MAX_BYTES * 2];
+	int i;
+
+	if (unlikely((len <= 0) || (len >= I2C_MAX_BYTES) ||
+		     (reg + len > 0xff)))
+		return -EINVAL;
+
+	for (i = 0; i < len; i++) {
+		regs[2 * i] = reg;
+		regs[2 * i + 1] = vals[i];
+		/* All addresses are shifted left one bit
+		 * as bit 0 toggles r/w */
+		reg += 2;
+	}
+
+	return stv06xx_write_sensor_bytes(sd, regs, len);
+}
+
+static int hdcs_set_state(struct sd *sd, enum hdcs_power_state state)
+{
+	struct hdcs *hdcs = sd->sensor_priv;
+	u8 val;
+	int ret;
+
+	if (hdcs->state == state)
+		return 0;
+
+	/* we need to go idle before running or sleeping */
+	if (hdcs->state != HDCS_STATE_IDLE) {
+		ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0);
+		if (ret)
+			return ret;
+	}
+
+	hdcs->state = HDCS_STATE_IDLE;
+
+	if (state == HDCS_STATE_IDLE)
+		return 0;
+
+	switch (state) {
+	case HDCS_STATE_SLEEP:
+		val = HDCS_SLEEP_MODE;
+		break;
+
+	case HDCS_STATE_RUN:
+		val = HDCS_RUN_ENABLE;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), val);
+
+	/* Update the state if the write succeeded */
+	if (!ret)
+		hdcs->state = state;
+
+	return ret;
+}
+
+static int hdcs_reset(struct sd *sd)
+{
+	struct hdcs *hdcs = sd->sensor_priv;
+	int err;
+
+	err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 1);
+	if (err < 0)
+		return err;
+
+	err = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), 0);
+	if (err < 0)
+		hdcs->state = HDCS_STATE_IDLE;
+
+	return err;
+}
+
+static int hdcs_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct hdcs *hdcs = sd->sensor_priv;
+	int rowexp, srowexp;
+	int max_srowexp;
+	/* Column time period */
+	int ct;
+	/* Column processing period */
+	int cp;
+	/* Row processing period */
+	int rp;
+	/* Minimum number of column timing periods
+	   within the column processing period */
+	int mnct;
+	int cycles, err;
+	u8 exp[14];
+
+	cycles = val * HDCS_CLK_FREQ_MHZ * 257;
+
+	ct = hdcs->exp.cto + hdcs->psmp + (HDCS_ADC_START_SIG_DUR + 2);
+	cp = hdcs->exp.cto + (hdcs->w * ct / 2);
+
+	/* the cycles one row takes */
+	rp = hdcs->exp.rs + cp;
+
+	rowexp = cycles / rp;
+
+	/* the remaining cycles */
+	cycles -= rowexp * rp;
+
+	/* calculate sub-row exposure */
+	if (IS_1020(sd)) {
+		/* see HDCS-1020 datasheet 3.5.6.4, p. 63 */
+		srowexp = hdcs->w - (cycles + hdcs->exp.er + 13) / ct;
+
+		mnct = (hdcs->exp.er + 12 + ct - 1) / ct;
+		max_srowexp = hdcs->w - mnct;
+	} else {
+		/* see HDCS-1000 datasheet 3.4.5.5, p. 61 */
+		srowexp = cp - hdcs->exp.er - 6 - cycles;
+
+		mnct = (hdcs->exp.er + 5 + ct - 1) / ct;
+		max_srowexp = cp - mnct * ct - 1;
+	}
+
+	if (srowexp < 0)
+		srowexp = 0;
+	else if (srowexp > max_srowexp)
+		srowexp = max_srowexp;
+
+	if (IS_1020(sd)) {
+		exp[0] = HDCS20_CONTROL;
+		exp[1] = 0x00;		/* Stop streaming */
+		exp[2] = HDCS_ROWEXPL;
+		exp[3] = rowexp & 0xff;
+		exp[4] = HDCS_ROWEXPH;
+		exp[5] = rowexp >> 8;
+		exp[6] = HDCS20_SROWEXP;
+		exp[7] = (srowexp >> 2) & 0xff;
+		exp[8] = HDCS20_ERROR;
+		exp[9] = 0x10;		/* Clear exposure error flag*/
+		exp[10] = HDCS20_CONTROL;
+		exp[11] = 0x04;		/* Restart streaming */
+		err = stv06xx_write_sensor_bytes(sd, exp, 6);
+	} else {
+		exp[0] = HDCS00_CONTROL;
+		exp[1] = 0x00;         /* Stop streaming */
+		exp[2] = HDCS_ROWEXPL;
+		exp[3] = rowexp & 0xff;
+		exp[4] = HDCS_ROWEXPH;
+		exp[5] = rowexp >> 8;
+		exp[6] = HDCS00_SROWEXPL;
+		exp[7] = srowexp & 0xff;
+		exp[8] = HDCS00_SROWEXPH;
+		exp[9] = srowexp >> 8;
+		exp[10] = HDCS_STATUS;
+		exp[11] = 0x10;         /* Clear exposure error flag*/
+		exp[12] = HDCS00_CONTROL;
+		exp[13] = 0x04;         /* Restart streaming */
+		err = stv06xx_write_sensor_bytes(sd, exp, 7);
+		if (err < 0)
+			return err;
+	}
+	gspca_dbg(gspca_dev, D_CONF, "Writing exposure %d, rowexp %d, srowexp %d\n",
+		  val, rowexp, srowexp);
+	return err;
+}
+
+static int hdcs_set_gains(struct sd *sd, u8 g)
+{
+	int err;
+	u8 gains[4];
+
+	/* the voltage gain Av = (1 + 19 * val / 127) * (1 + bit7) */
+	if (g > 127)
+		g = 0x80 | (g / 2);
+
+	gains[0] = g;
+	gains[1] = g;
+	gains[2] = g;
+	gains[3] = g;
+
+	err = hdcs_reg_write_seq(sd, HDCS_ERECPGA, gains, 4);
+	return err;
+}
+
+static int hdcs_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	gspca_dbg(gspca_dev, D_CONF, "Writing gain %d\n", val);
+	return hdcs_set_gains((struct sd *) gspca_dev,
+			       val & 0xff);
+}
+
+static int hdcs_set_size(struct sd *sd,
+		unsigned int width, unsigned int height)
+{
+	struct hdcs *hdcs = sd->sensor_priv;
+	u8 win[4];
+	unsigned int x, y;
+	int err;
+
+	/* must be multiple of 4 */
+	width = (width + 3) & ~0x3;
+	height = (height + 3) & ~0x3;
+
+	if (width > hdcs->array.width)
+		width = hdcs->array.width;
+
+	if (IS_1020(sd)) {
+		/* the borders are also invalid */
+		if (height + 2 * hdcs->array.border + HDCS_1020_BOTTOM_Y_SKIP
+				  > hdcs->array.height)
+			height = hdcs->array.height - 2 * hdcs->array.border -
+				HDCS_1020_BOTTOM_Y_SKIP;
+
+		y = (hdcs->array.height - HDCS_1020_BOTTOM_Y_SKIP - height) / 2
+				+ hdcs->array.top;
+	} else {
+		if (height > hdcs->array.height)
+			height = hdcs->array.height;
+
+		y = hdcs->array.top + (hdcs->array.height - height) / 2;
+	}
+
+	x = hdcs->array.left + (hdcs->array.width - width) / 2;
+
+	win[0] = y / 4;
+	win[1] = x / 4;
+	win[2] = (y + height) / 4 - 1;
+	win[3] = (x + width) / 4 - 1;
+
+	err = hdcs_reg_write_seq(sd, HDCS_FWROW, win, 4);
+	if (err < 0)
+		return err;
+
+	/* Update the current width and height */
+	hdcs->w = width;
+	hdcs->h = height;
+	return err;
+}
+
+static int hdcs_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	int err = -EINVAL;
+
+	switch (ctrl->id) {
+	case V4L2_CID_GAIN:
+		err = hdcs_set_gain(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE:
+		err = hdcs_set_exposure(gspca_dev, ctrl->val);
+		break;
+	}
+	return err;
+}
+
+static const struct v4l2_ctrl_ops hdcs_ctrl_ops = {
+	.s_ctrl = hdcs_s_ctrl,
+};
+
+static int hdcs_init_controls(struct sd *sd)
+{
+	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+	v4l2_ctrl_handler_init(hdl, 2);
+	v4l2_ctrl_new_std(hdl, &hdcs_ctrl_ops,
+			V4L2_CID_EXPOSURE, 0, 0xff, 1, HDCS_DEFAULT_EXPOSURE);
+	v4l2_ctrl_new_std(hdl, &hdcs_ctrl_ops,
+			V4L2_CID_GAIN, 0, 0xff, 1, HDCS_DEFAULT_GAIN);
+	return hdl->error;
+}
+
+static int hdcs_probe_1x00(struct sd *sd)
+{
+	struct hdcs *hdcs;
+	u16 sensor;
+	int ret;
+
+	ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor);
+	if (ret < 0 || sensor != 0x08)
+		return -ENODEV;
+
+	pr_info("HDCS-1000/1100 sensor detected\n");
+
+	sd->gspca_dev.cam.cam_mode = hdcs1x00_mode;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1x00_mode);
+
+	hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL);
+	if (!hdcs)
+		return -ENOMEM;
+
+	hdcs->array.left = 8;
+	hdcs->array.top = 8;
+	hdcs->array.width = HDCS_1X00_DEF_WIDTH;
+	hdcs->array.height = HDCS_1X00_DEF_HEIGHT;
+	hdcs->array.border = 4;
+
+	hdcs->exp.cto = 4;
+	hdcs->exp.cpo = 2;
+	hdcs->exp.rs = 186;
+	hdcs->exp.er = 100;
+
+	/*
+	 * Frame rate on HDCS-1000 with STV600 depends on PSMP:
+	 *  4 = doesn't work at all
+	 *  5 = 7.8 fps,
+	 *  6 = 6.9 fps,
+	 *  8 = 6.3 fps,
+	 * 10 = 5.5 fps,
+	 * 15 = 4.4 fps,
+	 * 31 = 2.8 fps
+	 *
+	 * Frame rate on HDCS-1000 with STV602 depends on PSMP:
+	 * 15 = doesn't work at all
+	 * 18 = doesn't work at all
+	 * 19 = 7.3 fps
+	 * 20 = 7.4 fps
+	 * 21 = 7.4 fps
+	 * 22 = 7.4 fps
+	 * 24 = 6.3 fps
+	 * 30 = 5.4 fps
+	 */
+	hdcs->psmp = (sd->bridge == BRIDGE_STV602) ? 20 : 5;
+
+	sd->sensor_priv = hdcs;
+
+	return 0;
+}
+
+static int hdcs_probe_1020(struct sd *sd)
+{
+	struct hdcs *hdcs;
+	u16 sensor;
+	int ret;
+
+	ret = stv06xx_read_sensor(sd, HDCS_IDENT, &sensor);
+	if (ret < 0 || sensor != 0x10)
+		return -ENODEV;
+
+	pr_info("HDCS-1020 sensor detected\n");
+
+	sd->gspca_dev.cam.cam_mode = hdcs1020_mode;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(hdcs1020_mode);
+
+	hdcs = kmalloc(sizeof(struct hdcs), GFP_KERNEL);
+	if (!hdcs)
+		return -ENOMEM;
+
+	/*
+	 * From Andrey's test image: looks like HDCS-1020 upper-left
+	 * visible pixel is at 24,8 (y maybe even smaller?) and lower-right
+	 * visible pixel at 375,299 (x maybe even larger?)
+	 */
+	hdcs->array.left = 24;
+	hdcs->array.top  = 4;
+	hdcs->array.width = HDCS_1020_DEF_WIDTH;
+	hdcs->array.height = 304;
+	hdcs->array.border = 4;
+
+	hdcs->psmp = 6;
+
+	hdcs->exp.cto = 3;
+	hdcs->exp.cpo = 3;
+	hdcs->exp.rs = 155;
+	hdcs->exp.er = 96;
+
+	sd->sensor_priv = hdcs;
+
+	return 0;
+}
+
+static int hdcs_start(struct sd *sd)
+{
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+	gspca_dbg(gspca_dev, D_STREAM, "Starting stream\n");
+
+	return hdcs_set_state(sd, HDCS_STATE_RUN);
+}
+
+static int hdcs_stop(struct sd *sd)
+{
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+	gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
+
+	return hdcs_set_state(sd, HDCS_STATE_SLEEP);
+}
+
+static int hdcs_init(struct sd *sd)
+{
+	struct hdcs *hdcs = sd->sensor_priv;
+	int i, err = 0;
+
+	/* Set the STV0602AA in STV0600 emulation mode */
+	if (sd->bridge == BRIDGE_STV602)
+		stv06xx_write_bridge(sd, STV_STV0600_EMULATION, 1);
+
+	/* Execute the bridge init */
+	for (i = 0; i < ARRAY_SIZE(stv_bridge_init) && !err; i++) {
+		err = stv06xx_write_bridge(sd, stv_bridge_init[i][0],
+					   stv_bridge_init[i][1]);
+	}
+	if (err < 0)
+		return err;
+
+	/* sensor soft reset */
+	hdcs_reset(sd);
+
+	/* Execute the sensor init */
+	for (i = 0; i < ARRAY_SIZE(stv_sensor_init) && !err; i++) {
+		err = stv06xx_write_sensor(sd, stv_sensor_init[i][0],
+					     stv_sensor_init[i][1]);
+	}
+	if (err < 0)
+		return err;
+
+	/* Enable continuous frame capture, bit 2: stop when frame complete */
+	err = stv06xx_write_sensor(sd, HDCS_REG_CONFIG(sd), BIT(3));
+	if (err < 0)
+		return err;
+
+	/* Set PGA sample duration
+	(was 0x7E for the STV602, but caused slow framerate with HDCS-1020) */
+	if (IS_1020(sd))
+		err = stv06xx_write_sensor(sd, HDCS_TCTRL,
+				(HDCS_ADC_START_SIG_DUR << 6) | hdcs->psmp);
+	else
+		err = stv06xx_write_sensor(sd, HDCS_TCTRL,
+				(HDCS_ADC_START_SIG_DUR << 5) | hdcs->psmp);
+	if (err < 0)
+		return err;
+
+	return hdcs_set_size(sd, hdcs->array.width, hdcs->array.height);
+}
+
+static int hdcs_dump(struct sd *sd)
+{
+	u16 reg, val;
+
+	pr_info("Dumping sensor registers:\n");
+
+	for (reg = HDCS_IDENT; reg <= HDCS_ROWEXPH; reg++) {
+		stv06xx_read_sensor(sd, reg, &val);
+		pr_info("reg 0x%02x = 0x%02x\n", reg, val);
+	}
+	return 0;
+}
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h
new file mode 100644
index 000000000..326a6eb68
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ * Copyright (c) 2008 Chia-I Wu
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#ifndef STV06XX_HDCS_H_
+#define STV06XX_HDCS_H_
+
+#include "stv06xx_sensor.h"
+
+#define HDCS_REG_CONFIG(sd)	(IS_1020(sd) ? HDCS20_CONFIG : HDCS00_CONFIG)
+#define HDCS_REG_CONTROL(sd)	(IS_1020(sd) ? HDCS20_CONTROL : HDCS00_CONTROL)
+
+#define HDCS_1X00_DEF_WIDTH	360
+#define HDCS_1X00_DEF_HEIGHT	296
+
+#define HDCS_1020_DEF_WIDTH	352
+#define HDCS_1020_DEF_HEIGHT	292
+
+#define HDCS_1020_BOTTOM_Y_SKIP	4
+
+#define HDCS_CLK_FREQ_MHZ	25
+
+#define HDCS_ADC_START_SIG_DUR	3
+
+/* LSB bit of I2C or register address signifies write (0) or read (1) */
+/* I2C Registers common for both HDCS-1000/1100 and HDCS-1020 */
+/* Identifications Register */
+#define HDCS_IDENT		(0x00 << 1)
+/* Status Register */
+#define HDCS_STATUS		(0x01 << 1)
+/* Interrupt Mask Register */
+#define HDCS_IMASK		(0x02 << 1)
+/* Pad Control Register */
+#define HDCS_PCTRL		(0x03 << 1)
+/* Pad Drive Control Register */
+#define HDCS_PDRV		(0x04 << 1)
+/* Interface Control Register */
+#define HDCS_ICTRL		(0x05 << 1)
+/* Interface Timing Register */
+#define HDCS_ITMG		(0x06 << 1)
+/* Baud Fraction Register */
+#define HDCS_BFRAC		(0x07 << 1)
+/* Baud Rate Register */
+#define HDCS_BRATE		(0x08 << 1)
+/* ADC Control Register */
+#define HDCS_ADCCTRL		(0x09 << 1)
+/* First Window Row Register */
+#define HDCS_FWROW		(0x0a << 1)
+/* First Window Column Register */
+#define HDCS_FWCOL		(0x0b << 1)
+/* Last Window Row Register */
+#define HDCS_LWROW		(0x0c << 1)
+/* Last Window Column Register */
+#define HDCS_LWCOL		(0x0d << 1)
+/* Timing Control Register */
+#define HDCS_TCTRL		(0x0e << 1)
+/* PGA Gain Register: Even Row, Even Column */
+#define HDCS_ERECPGA		(0x0f << 1)
+/* PGA Gain Register: Even Row, Odd Column */
+#define HDCS_EROCPGA		(0x10 << 1)
+/* PGA Gain Register: Odd Row, Even Column */
+#define HDCS_ORECPGA		(0x11 << 1)
+/* PGA Gain Register: Odd Row, Odd Column */
+#define HDCS_OROCPGA		(0x12 << 1)
+/* Row Exposure Low Register */
+#define HDCS_ROWEXPL		(0x13 << 1)
+/* Row Exposure High Register */
+#define HDCS_ROWEXPH		(0x14 << 1)
+
+/* I2C Registers only for HDCS-1000/1100 */
+/* Sub-Row Exposure Low Register */
+#define HDCS00_SROWEXPL		(0x15 << 1)
+/* Sub-Row Exposure High Register */
+#define HDCS00_SROWEXPH		(0x16 << 1)
+/* Configuration Register */
+#define HDCS00_CONFIG		(0x17 << 1)
+/* Control Register */
+#define HDCS00_CONTROL		(0x18 << 1)
+
+/* I2C Registers only for HDCS-1020 */
+/* Sub-Row Exposure Register */
+#define HDCS20_SROWEXP		(0x15 << 1)
+/* Error Control Register */
+#define HDCS20_ERROR		(0x16 << 1)
+/* Interface Timing 2 Register */
+#define HDCS20_ITMG2		(0x17 << 1)
+/* Interface Control 2 Register	*/
+#define HDCS20_ICTRL2		(0x18 << 1)
+/* Horizontal Blank Register */
+#define HDCS20_HBLANK		(0x19 << 1)
+/* Vertical Blank Register */
+#define HDCS20_VBLANK		(0x1a << 1)
+/* Configuration Register */
+#define HDCS20_CONFIG		(0x1b << 1)
+/* Control Register */
+#define HDCS20_CONTROL		(0x1c << 1)
+
+#define HDCS_RUN_ENABLE		(1 << 2)
+#define HDCS_SLEEP_MODE		(1 << 1)
+
+#define HDCS_DEFAULT_EXPOSURE	48
+#define HDCS_DEFAULT_GAIN	50
+
+static int hdcs_probe_1x00(struct sd *sd);
+static int hdcs_probe_1020(struct sd *sd);
+static int hdcs_start(struct sd *sd);
+static int hdcs_init(struct sd *sd);
+static int hdcs_init_controls(struct sd *sd);
+static int hdcs_stop(struct sd *sd);
+static int hdcs_dump(struct sd *sd);
+
+static int hdcs_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
+static int hdcs_set_gain(struct gspca_dev *gspca_dev, __s32 val);
+
+const struct stv06xx_sensor stv06xx_sensor_hdcs1x00 = {
+	.name = "HP HDCS-1000/1100",
+	.i2c_flush = 0,
+	.i2c_addr = (0x55 << 1),
+	.i2c_len = 1,
+
+	/* FIXME (see if we can lower min_packet_size, needs testing, and also
+	   adjusting framerate when the bandwidth gets lower) */
+	.min_packet_size = { 847 },
+	.max_packet_size = { 847 },
+
+	.init = hdcs_init,
+	.init_controls = hdcs_init_controls,
+	.probe = hdcs_probe_1x00,
+	.start = hdcs_start,
+	.stop = hdcs_stop,
+	.dump = hdcs_dump,
+};
+
+const struct stv06xx_sensor stv06xx_sensor_hdcs1020 = {
+	.name = "HDCS-1020",
+	.i2c_flush = 0,
+	.i2c_addr = (0x55 << 1),
+	.i2c_len = 1,
+
+	/* FIXME (see if we can lower min_packet_size, needs testing, and also
+	   adjusting framerate when the bandwidthm gets lower) */
+	.min_packet_size = { 847 },
+	.max_packet_size = { 847 },
+
+	.init = hdcs_init,
+	.init_controls = hdcs_init_controls,
+	.probe = hdcs_probe_1020,
+	.start = hdcs_start,
+	.stop = hdcs_stop,
+	.dump = hdcs_dump,
+};
+
+static const u16 stv_bridge_init[][2] = {
+	{STV_ISO_ENABLE, 0},
+	{STV_REG23, 0},
+	{STV_REG00, 0x1d},
+	{STV_REG01, 0xb5},
+	{STV_REG02, 0xa8},
+	{STV_REG03, 0x95},
+	{STV_REG04, 0x07},
+
+	{STV_SCAN_RATE, 0x20},
+	{STV_Y_CTRL, 0x01},
+	{STV_X_CTRL, 0x0a}
+};
+
+static const u8 stv_sensor_init[][2] = {
+	/* Clear status (writing 1 will clear the corresponding status bit) */
+	{HDCS_STATUS, BIT(6) | BIT(5) | BIT(4) | BIT(3) | BIT(2) | BIT(1)},
+	/* Disable all interrupts */
+	{HDCS_IMASK, 0x00},
+	{HDCS_PCTRL, BIT(6) | BIT(5) | BIT(1) | BIT(0)},
+	{HDCS_PDRV,  0x00},
+	{HDCS_ICTRL, BIT(5)},
+	{HDCS_ITMG,  BIT(4) | BIT(1)},
+	/* ADC output resolution to 10 bits */
+	{HDCS_ADCCTRL, 10}
+};
+
+#endif
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
new file mode 100644
index 000000000..ae382b3b5
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
@@ -0,0 +1,432 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+/*
+ * The spec file for the PB-0100 suggests the following for best quality
+ * images after the sensor has been reset :
+ *
+ * PB_ADCGAINL      = R60 = 0x03 (3 dec)      : sets low reference of ADC
+						to produce good black level
+ * PB_PREADCTRL     = R32 = 0x1400 (5120 dec) : Enables global gain changes
+						through R53
+ * PB_ADCMINGAIN    = R52 = 0x10 (16 dec)     : Sets the minimum gain for
+						auto-exposure
+ * PB_ADCGLOBALGAIN = R53 = 0x10 (16 dec)     : Sets the global gain
+ * PB_EXPGAIN       = R14 = 0x11 (17 dec)     : Sets the auto-exposure value
+ * PB_UPDATEINT     = R23 = 0x02 (2 dec)      : Sets the speed on
+						auto-exposure routine
+ * PB_CFILLIN       = R5  = 0x0E (14 dec)     : Sets the frame rate
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "stv06xx_pb0100.h"
+
+struct pb0100_ctrls {
+	struct { /* one big happy control cluster... */
+		struct v4l2_ctrl *autogain;
+		struct v4l2_ctrl *gain;
+		struct v4l2_ctrl *exposure;
+		struct v4l2_ctrl *red;
+		struct v4l2_ctrl *blue;
+		struct v4l2_ctrl *natural;
+	};
+	struct v4l2_ctrl *target;
+};
+
+static struct v4l2_pix_format pb0100_mode[] = {
+/* low res / subsample modes disabled as they are only half res horizontal,
+   halving the vertical resolution does not seem to work */
+	{
+		320,
+		240,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 320 * 240,
+		.bytesperline = 320,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = PB0100_CROP_TO_VGA
+	},
+	{
+		352,
+		288,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 352 * 288,
+		.bytesperline = 352,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0
+	}
+};
+
+static int pb0100_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	struct sd *sd = (struct sd *)gspca_dev;
+	struct pb0100_ctrls *ctrls = sd->sensor_priv;
+	int err = -EINVAL;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUTOGAIN:
+		err = pb0100_set_autogain(gspca_dev, ctrl->val);
+		if (err)
+			break;
+		if (ctrl->val)
+			break;
+		err = pb0100_set_gain(gspca_dev, ctrls->gain->val);
+		if (err)
+			break;
+		err = pb0100_set_exposure(gspca_dev, ctrls->exposure->val);
+		break;
+	case V4L2_CTRL_CLASS_USER + 0x1001:
+		err = pb0100_set_autogain_target(gspca_dev, ctrl->val);
+		break;
+	}
+	return err;
+}
+
+static const struct v4l2_ctrl_ops pb0100_ctrl_ops = {
+	.s_ctrl = pb0100_s_ctrl,
+};
+
+static int pb0100_init_controls(struct sd *sd)
+{
+	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+	struct pb0100_ctrls *ctrls;
+	static const struct v4l2_ctrl_config autogain_target = {
+		.ops = &pb0100_ctrl_ops,
+		.id = V4L2_CTRL_CLASS_USER + 0x1000,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "Automatic Gain Target",
+		.max = 255,
+		.step = 1,
+		.def = 128,
+	};
+	static const struct v4l2_ctrl_config natural_light = {
+		.ops = &pb0100_ctrl_ops,
+		.id = V4L2_CTRL_CLASS_USER + 0x1001,
+		.type = V4L2_CTRL_TYPE_BOOLEAN,
+		.name = "Natural Light Source",
+		.max = 1,
+		.step = 1,
+		.def = 1,
+	};
+
+	ctrls = kzalloc(sizeof(*ctrls), GFP_KERNEL);
+	if (!ctrls)
+		return -ENOMEM;
+
+	v4l2_ctrl_handler_init(hdl, 6);
+	ctrls->autogain = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
+			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+	ctrls->exposure = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
+			V4L2_CID_EXPOSURE, 0, 511, 1, 12);
+	ctrls->gain = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
+			V4L2_CID_GAIN, 0, 255, 1, 128);
+	ctrls->red = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
+			V4L2_CID_RED_BALANCE, -255, 255, 1, 0);
+	ctrls->blue = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
+			V4L2_CID_BLUE_BALANCE, -255, 255, 1, 0);
+	ctrls->natural = v4l2_ctrl_new_custom(hdl, &natural_light, NULL);
+	ctrls->target = v4l2_ctrl_new_custom(hdl, &autogain_target, NULL);
+	if (hdl->error) {
+		kfree(ctrls);
+		return hdl->error;
+	}
+	sd->sensor_priv = ctrls;
+	v4l2_ctrl_auto_cluster(5, &ctrls->autogain, 0, false);
+	return 0;
+}
+
+static int pb0100_probe(struct sd *sd)
+{
+	u16 sensor;
+	int err;
+
+	err = stv06xx_read_sensor(sd, PB_IDENT, &sensor);
+
+	if (err < 0)
+		return -ENODEV;
+	if ((sensor >> 8) != 0x64)
+		return -ENODEV;
+
+	pr_info("Photobit pb0100 sensor detected\n");
+
+	sd->gspca_dev.cam.cam_mode = pb0100_mode;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(pb0100_mode);
+
+	return 0;
+}
+
+static int pb0100_start(struct sd *sd)
+{
+	int err, packet_size, max_packet_size;
+	struct usb_host_interface *alt;
+	struct usb_interface *intf;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct cam *cam = &sd->gspca_dev.cam;
+	u32 mode = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
+
+	intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
+	alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
+	if (!alt)
+		return -ENODEV;
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
+	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
+
+	/* If we don't have enough bandwidth use a lower framerate */
+	max_packet_size = sd->sensor->max_packet_size[sd->gspca_dev.curr_mode];
+	if (packet_size < max_packet_size)
+		stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1));
+	else
+		stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(5)|BIT(3)|BIT(1));
+
+	/* Setup sensor window */
+	if (mode & PB0100_CROP_TO_VGA) {
+		stv06xx_write_sensor(sd, PB_RSTART, 30);
+		stv06xx_write_sensor(sd, PB_CSTART, 20);
+		stv06xx_write_sensor(sd, PB_RWSIZE, 240 - 1);
+		stv06xx_write_sensor(sd, PB_CWSIZE, 320 - 1);
+	} else {
+		stv06xx_write_sensor(sd, PB_RSTART, 8);
+		stv06xx_write_sensor(sd, PB_CSTART, 4);
+		stv06xx_write_sensor(sd, PB_RWSIZE, 288 - 1);
+		stv06xx_write_sensor(sd, PB_CWSIZE, 352 - 1);
+	}
+
+	if (mode & PB0100_SUBSAMPLE) {
+		stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02); /* Wrong, FIXME */
+		stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
+
+		stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
+	} else {
+		stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
+		stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
+		/* larger -> slower */
+		stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20);
+	}
+
+	err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)|BIT(1));
+	gspca_dbg(gspca_dev, D_STREAM, "Started stream, status: %d\n", err);
+
+	return (err < 0) ? err : 0;
+}
+
+static int pb0100_stop(struct sd *sd)
+{
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	int err;
+
+	err = stv06xx_write_sensor(sd, PB_ABORTFRAME, 1);
+
+	if (err < 0)
+		goto out;
+
+	/* Set bit 1 to zero */
+	err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3));
+
+	gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
+out:
+	return (err < 0) ? err : 0;
+}
+
+/* FIXME: Sort the init commands out and put them into tables,
+	  this is only for getting the camera to work */
+/* FIXME: No error handling for now,
+	  add this once the init has been converted to proper tables */
+static int pb0100_init(struct sd *sd)
+{
+	stv06xx_write_bridge(sd, STV_REG00, 1);
+	stv06xx_write_bridge(sd, STV_SCAN_RATE, 0);
+
+	/* Reset sensor */
+	stv06xx_write_sensor(sd, PB_RESET, 1);
+	stv06xx_write_sensor(sd, PB_RESET, 0);
+
+	/* Disable chip */
+	stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3));
+
+	/* Gain stuff...*/
+	stv06xx_write_sensor(sd, PB_PREADCTRL, BIT(12)|BIT(10)|BIT(6));
+	stv06xx_write_sensor(sd, PB_ADCGLOBALGAIN, 12);
+
+	/* Set up auto-exposure */
+	/* ADC VREF_HI new setting for a transition
+	  from the Expose1 to the Expose2 setting */
+	stv06xx_write_sensor(sd, PB_R28, 12);
+	/* gain max for autoexposure */
+	stv06xx_write_sensor(sd, PB_ADCMAXGAIN, 180);
+	/* gain min for autoexposure  */
+	stv06xx_write_sensor(sd, PB_ADCMINGAIN, 12);
+	/* Maximum frame integration time (programmed into R8)
+	   allowed for auto-exposure routine */
+	stv06xx_write_sensor(sd, PB_R54, 3);
+	/* Minimum frame integration time (programmed into R8)
+	   allowed for auto-exposure routine */
+	stv06xx_write_sensor(sd, PB_R55, 0);
+	stv06xx_write_sensor(sd, PB_UPDATEINT, 1);
+	/* R15  Expose0 (maximum that auto-exposure may use) */
+	stv06xx_write_sensor(sd, PB_R15, 800);
+	/* R17  Expose2 (minimum that auto-exposure may use) */
+	stv06xx_write_sensor(sd, PB_R17, 10);
+
+	stv06xx_write_sensor(sd, PB_EXPGAIN, 0);
+
+	/* 0x14 */
+	stv06xx_write_sensor(sd, PB_VOFFSET, 0);
+	/* 0x0D */
+	stv06xx_write_sensor(sd, PB_ADCGAINH, 11);
+	/* Set black level (important!) */
+	stv06xx_write_sensor(sd, PB_ADCGAINL, 0);
+
+	/* ??? */
+	stv06xx_write_bridge(sd, STV_REG00, 0x11);
+	stv06xx_write_bridge(sd, STV_REG03, 0x45);
+	stv06xx_write_bridge(sd, STV_REG04, 0x07);
+
+	/* Scan/timing for the sensor */
+	stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1));
+	stv06xx_write_sensor(sd, PB_CFILLIN, 14);
+	stv06xx_write_sensor(sd, PB_VBL, 0);
+	stv06xx_write_sensor(sd, PB_FINTTIME, 0);
+	stv06xx_write_sensor(sd, PB_RINTTIME, 123);
+
+	stv06xx_write_bridge(sd, STV_REG01, 0xc2);
+	stv06xx_write_bridge(sd, STV_REG02, 0xb0);
+	return 0;
+}
+
+static int pb0100_dump(struct sd *sd)
+{
+	return 0;
+}
+
+static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct pb0100_ctrls *ctrls = sd->sensor_priv;
+
+	err = stv06xx_write_sensor(sd, PB_G1GAIN, val);
+	if (!err)
+		err = stv06xx_write_sensor(sd, PB_G2GAIN, val);
+	gspca_dbg(gspca_dev, D_CONF, "Set green gain to %d, status: %d\n",
+		  val, err);
+
+	if (!err)
+		err = pb0100_set_red_balance(gspca_dev, ctrls->red->val);
+	if (!err)
+		err = pb0100_set_blue_balance(gspca_dev, ctrls->blue->val);
+
+	return err;
+}
+
+static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct pb0100_ctrls *ctrls = sd->sensor_priv;
+
+	val += ctrls->gain->val;
+	if (val < 0)
+		val = 0;
+	else if (val > 255)
+		val = 255;
+
+	err = stv06xx_write_sensor(sd, PB_RGAIN, val);
+	gspca_dbg(gspca_dev, D_CONF, "Set red gain to %d, status: %d\n",
+		  val, err);
+
+	return err;
+}
+
+static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct pb0100_ctrls *ctrls = sd->sensor_priv;
+
+	val += ctrls->gain->val;
+	if (val < 0)
+		val = 0;
+	else if (val > 255)
+		val = 255;
+
+	err = stv06xx_write_sensor(sd, PB_BGAIN, val);
+	gspca_dbg(gspca_dev, D_CONF, "Set blue gain to %d, status: %d\n",
+		  val, err);
+
+	return err;
+}
+
+static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int err;
+
+	err = stv06xx_write_sensor(sd, PB_RINTTIME, val);
+	gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d, status: %d\n",
+		  val, err);
+
+	return err;
+}
+
+static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct pb0100_ctrls *ctrls = sd->sensor_priv;
+
+	if (val) {
+		if (ctrls->natural->val)
+			val = BIT(6)|BIT(4)|BIT(0);
+		else
+			val = BIT(4)|BIT(0);
+	} else
+		val = 0;
+
+	err = stv06xx_write_sensor(sd, PB_EXPGAIN, val);
+	gspca_dbg(gspca_dev, D_CONF, "Set autogain to %d (natural: %d), status: %d\n",
+		  val, ctrls->natural->val, err);
+
+	return err;
+}
+
+static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err, totalpixels, brightpixels, darkpixels;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	/* Number of pixels counted by the sensor when subsampling the pixels.
+	 * Slightly larger than the real value to avoid oscillation */
+	totalpixels = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
+	totalpixels = totalpixels/(8*8) + totalpixels/(64*64);
+
+	brightpixels = (totalpixels * val) >> 8;
+	darkpixels   = totalpixels - brightpixels;
+	err = stv06xx_write_sensor(sd, PB_R21, brightpixels);
+	if (!err)
+		err = stv06xx_write_sensor(sd, PB_R22, darkpixels);
+
+	gspca_dbg(gspca_dev, D_CONF, "Set autogain target to %d, status: %d\n",
+		  val, err);
+
+	return err;
+}
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h
new file mode 100644
index 000000000..c5a661457
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#ifndef STV06XX_PB0100_H_
+#define STV06XX_PB0100_H_
+
+#include "stv06xx_sensor.h"
+
+/* mode priv field flags */
+#define PB0100_CROP_TO_VGA	0x01
+#define PB0100_SUBSAMPLE	0x02
+
+/* I2C Registers */
+#define PB_IDENT		0x00	/* Chip Version */
+#define PB_RSTART		0x01	/* Row Window Start */
+#define PB_CSTART		0x02	/* Column Window Start */
+#define PB_RWSIZE		0x03	/* Row Window Size */
+#define PB_CWSIZE		0x04	/* Column  Window Size */
+#define PB_CFILLIN		0x05	/* Column Fill-In */
+#define PB_VBL			0x06	/* Vertical Blank Count */
+#define PB_CONTROL		0x07	/* Control Mode */
+#define PB_FINTTIME		0x08	/* Integration Time/Frame Unit Count */
+#define PB_RINTTIME		0x09	/* Integration Time/Row Unit Count */
+#define PB_ROWSPEED		0x0a	/* Row Speed Control */
+#define PB_ABORTFRAME		0x0b	/* Abort Frame */
+#define PB_R12			0x0c	/* Reserved */
+#define PB_RESET		0x0d	/* Reset */
+#define PB_EXPGAIN		0x0e	/* Exposure Gain Command */
+#define PB_R15			0x0f	/* Expose0 */
+#define PB_R16			0x10	/* Expose1 */
+#define PB_R17			0x11	/* Expose2 */
+#define PB_R18			0x12	/* Low0_DAC */
+#define PB_R19			0x13	/* Low1_DAC */
+#define PB_R20			0x14	/* Low2_DAC */
+#define PB_R21			0x15	/* Threshold11 */
+#define PB_R22			0x16	/* Threshold0x */
+#define PB_UPDATEINT		0x17	/* Update Interval */
+#define PB_R24			0x18	/* High_DAC */
+#define PB_R25			0x19	/* Trans0H */
+#define PB_R26			0x1a	/* Trans1L */
+#define PB_R27			0x1b	/* Trans1H */
+#define PB_R28			0x1c	/* Trans2L */
+#define PB_R29			0x1d	/* Reserved */
+#define PB_R30			0x1e	/* Reserved */
+#define PB_R31			0x1f	/* Wait to Read */
+#define PB_PREADCTRL		0x20	/* Pixel Read Control Mode */
+#define PB_R33			0x21	/* IREF_VLN */
+#define PB_R34			0x22	/* IREF_VLP */
+#define PB_R35			0x23	/* IREF_VLN_INTEG */
+#define PB_R36			0x24	/* IREF_MASTER */
+#define PB_R37			0x25	/* IDACP */
+#define PB_R38			0x26	/* IDACN */
+#define PB_R39			0x27	/* DAC_Control_Reg */
+#define PB_R40			0x28	/* VCL */
+#define PB_R41			0x29	/* IREF_VLN_ADCIN */
+#define PB_R42			0x2a	/* Reserved */
+#define PB_G1GAIN		0x2b	/* Green 1 Gain */
+#define PB_BGAIN		0x2c	/* Blue Gain */
+#define PB_RGAIN		0x2d	/* Red Gain */
+#define PB_G2GAIN		0x2e	/* Green 2 Gain */
+#define PB_R47			0x2f	/* Dark Row Address */
+#define PB_R48			0x30	/* Dark Row Options */
+#define PB_R49			0x31	/* Reserved */
+#define PB_R50			0x32	/* Image Test Data */
+#define PB_ADCMAXGAIN		0x33	/* Maximum Gain */
+#define PB_ADCMINGAIN		0x34	/* Minimum Gain */
+#define PB_ADCGLOBALGAIN	0x35	/* Global Gain */
+#define PB_R54			0x36	/* Maximum Frame */
+#define PB_R55			0x37	/* Minimum Frame */
+#define PB_R56			0x38	/* Reserved */
+#define PB_VOFFSET		0x39	/* VOFFSET */
+#define PB_R58			0x3a	/* Snap-Shot Sequence Trigger */
+#define PB_ADCGAINH		0x3b	/* VREF_HI */
+#define PB_ADCGAINL		0x3c	/* VREF_LO */
+#define PB_R61			0x3d	/* Reserved */
+#define PB_R62			0x3e	/* Reserved */
+#define PB_R63			0x3f	/* Reserved */
+#define PB_R64			0x40	/* Red/Blue Gain */
+#define PB_R65			0x41	/* Green 2/Green 1 Gain */
+#define PB_R66			0x42	/* VREF_HI/LO */
+#define PB_R67			0x43	/* Integration Time/Row Unit Count */
+#define PB_R240			0xf0	/* ADC Test */
+#define PB_R241			0xf1    /* Chip Enable */
+#define PB_R242			0xf2	/* Reserved */
+
+static int pb0100_probe(struct sd *sd);
+static int pb0100_start(struct sd *sd);
+static int pb0100_init(struct sd *sd);
+static int pb0100_init_controls(struct sd *sd);
+static int pb0100_stop(struct sd *sd);
+static int pb0100_dump(struct sd *sd);
+
+/* V4L2 controls supported by the driver */
+static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
+static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
+static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
+static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val);
+static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val);
+
+const struct stv06xx_sensor stv06xx_sensor_pb0100 = {
+	.name = "PB-0100",
+	.i2c_flush = 1,
+	.i2c_addr = 0xba,
+	.i2c_len = 2,
+
+	.min_packet_size = { 635, 847 },
+	.max_packet_size = { 847, 923 },
+
+	.init = pb0100_init,
+	.init_controls = pb0100_init_controls,
+	.probe = pb0100_probe,
+	.start = pb0100_start,
+	.stop = pb0100_stop,
+	.dump = pb0100_dump,
+};
+
+#endif
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h b/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h
new file mode 100644
index 000000000..67c13c689
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#ifndef STV06XX_SENSOR_H_
+#define STV06XX_SENSOR_H_
+
+#include "stv06xx.h"
+
+#define IS_1020(sd)	((sd)->sensor == &stv06xx_sensor_hdcs1020)
+
+extern const struct stv06xx_sensor stv06xx_sensor_vv6410;
+extern const struct stv06xx_sensor stv06xx_sensor_hdcs1x00;
+extern const struct stv06xx_sensor stv06xx_sensor_hdcs1020;
+extern const struct stv06xx_sensor stv06xx_sensor_pb0100;
+extern const struct stv06xx_sensor stv06xx_sensor_st6422;
+
+struct stv06xx_sensor {
+	/* Defines the name of a sensor */
+	char name[32];
+
+	/* Sensor i2c address */
+	u8 i2c_addr;
+
+	/* Flush value*/
+	u8 i2c_flush;
+
+	/* length of an i2c word */
+	u8 i2c_len;
+
+	/* Isoc packet size (per mode) */
+	int min_packet_size[4];
+	int max_packet_size[4];
+
+	/* Probes if the sensor is connected */
+	int (*probe)(struct sd *sd);
+
+	/* Performs a initialization sequence */
+	int (*init)(struct sd *sd);
+
+	/* Initializes the controls */
+	int (*init_controls)(struct sd *sd);
+
+	/* Reads a sensor register */
+	int (*read_sensor)(struct sd *sd, const u8 address,
+	      u8 *i2c_data, const u8 len);
+
+	/* Writes to a sensor register */
+	int (*write_sensor)(struct sd *sd, const u8 address,
+	      u8 *i2c_data, const u8 len);
+
+	/* Instructs the sensor to start streaming */
+	int (*start)(struct sd *sd);
+
+	/* Instructs the sensor to stop streaming */
+	int (*stop)(struct sd *sd);
+
+	/* Instructs the sensor to dump all its contents */
+	int (*dump)(struct sd *sd);
+};
+
+#endif
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.c b/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.c
new file mode 100644
index 000000000..aac19d449
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Support for the sensor part which is integrated (I think) into the
+ * st6422 stv06xx alike bridge, as its integrated there are no i2c writes
+ * but instead direct bridge writes.
+ *
+ * Copyright (c) 2009 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Strongly based on qc-usb-messenger, which is:
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "stv06xx_st6422.h"
+
+static struct v4l2_pix_format st6422_mode[] = {
+	/* Note we actually get 124 lines of data, of which we skip the 4st
+	   4 as they are garbage */
+	{
+		162,
+		120,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 162 * 120,
+		.bytesperline = 162,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 1
+	},
+	/* Note we actually get 248 lines of data, of which we skip the 4st
+	   4 as they are garbage, and we tell the app it only gets the
+	   first 240 of the 244 lines it actually gets, so that it ignores
+	   the last 4. */
+	{
+		324,
+		240,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 324 * 244,
+		.bytesperline = 324,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0
+	},
+};
+
+/* V4L2 controls supported by the driver */
+static int setbrightness(struct sd *sd, s32 val);
+static int setcontrast(struct sd *sd, s32 val);
+static int setgain(struct sd *sd, u8 gain);
+static int setexposure(struct sd *sd, s16 expo);
+
+static int st6422_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	struct sd *sd = (struct sd *)gspca_dev;
+	int err = -EINVAL;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		err = setbrightness(sd, ctrl->val);
+		break;
+	case V4L2_CID_CONTRAST:
+		err = setcontrast(sd, ctrl->val);
+		break;
+	case V4L2_CID_GAIN:
+		err = setgain(sd, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE:
+		err = setexposure(sd, ctrl->val);
+		break;
+	}
+
+	/* commit settings */
+	if (err >= 0)
+		err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+	sd->gspca_dev.usb_err = err;
+	return err;
+}
+
+static const struct v4l2_ctrl_ops st6422_ctrl_ops = {
+	.s_ctrl = st6422_s_ctrl,
+};
+
+static int st6422_init_controls(struct sd *sd)
+{
+	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+	v4l2_ctrl_handler_init(hdl, 4);
+	v4l2_ctrl_new_std(hdl, &st6422_ctrl_ops,
+			V4L2_CID_BRIGHTNESS, 0, 31, 1, 3);
+	v4l2_ctrl_new_std(hdl, &st6422_ctrl_ops,
+			V4L2_CID_CONTRAST, 0, 15, 1, 11);
+	v4l2_ctrl_new_std(hdl, &st6422_ctrl_ops,
+			V4L2_CID_EXPOSURE, 0, 1023, 1, 256);
+	v4l2_ctrl_new_std(hdl, &st6422_ctrl_ops,
+			V4L2_CID_GAIN, 0, 255, 1, 64);
+
+	return hdl->error;
+}
+
+static int st6422_probe(struct sd *sd)
+{
+	if (sd->bridge != BRIDGE_ST6422)
+		return -ENODEV;
+
+	pr_info("st6422 sensor detected\n");
+
+	sd->gspca_dev.cam.cam_mode = st6422_mode;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(st6422_mode);
+	return 0;
+}
+
+static int st6422_init(struct sd *sd)
+{
+	int err = 0, i;
+
+	static const u16 st6422_bridge_init[][2] = {
+		{ STV_ISO_ENABLE, 0x00 }, /* disable capture */
+		{ 0x1436, 0x00 },
+		{ 0x1432, 0x03 },	/* 0x00-0x1F brightness */
+		{ 0x143a, 0xf9 },	/* 0x00-0x0F contrast */
+		{ 0x0509, 0x38 },	/* R */
+		{ 0x050a, 0x38 },	/* G */
+		{ 0x050b, 0x38 },	/* B */
+		{ 0x050c, 0x2a },
+		{ 0x050d, 0x01 },
+
+
+		{ 0x1431, 0x00 },	/* 0x00-0x07 ??? */
+		{ 0x1433, 0x34 },	/* 160x120, 0x00-0x01 night filter */
+		{ 0x1438, 0x18 },	/* 640x480 */
+/* 18 bayes */
+/* 10 compressed? */
+
+		{ 0x1439, 0x00 },
+/* anti-noise?  0xa2 gives a perfect image */
+
+		{ 0x143b, 0x05 },
+		{ 0x143c, 0x00 },	/* 0x00-0x01 - ??? */
+
+
+/* shutter time 0x0000-0x03FF */
+/* low value  give good picures on moving objects (but requires much light) */
+/* high value gives good picures in darkness (but tends to be overexposed) */
+		{ 0x143e, 0x01 },
+		{ 0x143d, 0x00 },
+
+		{ 0x1442, 0xe2 },
+/* write: 1x1x xxxx */
+/* read:  1x1x xxxx */
+/*        bit 5 == button pressed and hold if 0 */
+/* write 0xe2,0xea */
+
+/* 0x144a */
+/* 0x00 init */
+/* bit 7 == button has been pressed, but not handled */
+
+/* interrupt */
+/* if(urb->iso_frame_desc[i].status == 0x80) { */
+/* if(urb->iso_frame_desc[i].status == 0x88) { */
+
+		{ 0x1500, 0xd0 },
+		{ 0x1500, 0xd0 },
+		{ 0x1500, 0x50 },	/* 0x00 - 0xFF  0x80 == compr ? */
+
+		{ 0x1501, 0xaf },
+/* high val-> light area gets darker */
+/* low val -> light area gets lighter */
+		{ 0x1502, 0xc2 },
+/* high val-> light area gets darker */
+/* low val -> light area gets lighter */
+		{ 0x1503, 0x45 },
+/* high val-> light area gets darker */
+/* low val -> light area gets lighter */
+		{ 0x1505, 0x02 },
+/* 2  : 324x248  80352 bytes */
+/* 7  : 248x162  40176 bytes */
+/* c+f: 162*124  20088 bytes */
+
+		{ 0x150e, 0x8e },
+		{ 0x150f, 0x37 },
+		{ 0x15c0, 0x00 },
+		{ 0x15c3, 0x08 },	/* 0x04/0x14 ... test pictures ??? */
+
+
+		{ 0x143f, 0x01 },	/* commit settings */
+
+	};
+
+	for (i = 0; i < ARRAY_SIZE(st6422_bridge_init) && !err; i++) {
+		err = stv06xx_write_bridge(sd, st6422_bridge_init[i][0],
+					       st6422_bridge_init[i][1]);
+	}
+
+	return err;
+}
+
+static int setbrightness(struct sd *sd, s32 val)
+{
+	/* val goes from 0 -> 31 */
+	return stv06xx_write_bridge(sd, 0x1432, val);
+}
+
+static int setcontrast(struct sd *sd, s32 val)
+{
+	/* Val goes from 0 -> 15 */
+	return stv06xx_write_bridge(sd, 0x143a, val | 0xf0);
+}
+
+static int setgain(struct sd *sd, u8 gain)
+{
+	int err;
+
+	/* Set red, green, blue, gain */
+	err = stv06xx_write_bridge(sd, 0x0509, gain);
+	if (err < 0)
+		return err;
+
+	err = stv06xx_write_bridge(sd, 0x050a, gain);
+	if (err < 0)
+		return err;
+
+	err = stv06xx_write_bridge(sd, 0x050b, gain);
+	if (err < 0)
+		return err;
+
+	/* 2 mystery writes */
+	err = stv06xx_write_bridge(sd, 0x050c, 0x2a);
+	if (err < 0)
+		return err;
+
+	return stv06xx_write_bridge(sd, 0x050d, 0x01);
+}
+
+static int setexposure(struct sd *sd, s16 expo)
+{
+	int err;
+
+	err = stv06xx_write_bridge(sd, 0x143d, expo & 0xff);
+	if (err < 0)
+		return err;
+
+	return stv06xx_write_bridge(sd, 0x143e, expo >> 8);
+}
+
+static int st6422_start(struct sd *sd)
+{
+	int err;
+	struct cam *cam = &sd->gspca_dev.cam;
+
+	if (cam->cam_mode[sd->gspca_dev.curr_mode].priv)
+		err = stv06xx_write_bridge(sd, 0x1505, 0x0f);
+	else
+		err = stv06xx_write_bridge(sd, 0x1505, 0x02);
+	if (err < 0)
+		return err;
+
+	/* commit settings */
+	err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+	return (err < 0) ? err : 0;
+}
+
+static int st6422_stop(struct sd *sd)
+{
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+	gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
+
+	return 0;
+}
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.h b/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.h
new file mode 100644
index 000000000..68ba01c5a
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_st6422.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Support for the sensor part which is integrated (I think) into the
+ * st6422 stv06xx alike bridge, as its integrated there are no i2c writes
+ * but instead direct bridge writes.
+ *
+ * Copyright (c) 2009 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Strongly based on qc-usb-messenger, which is:
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ */
+
+#ifndef STV06XX_ST6422_H_
+#define STV06XX_ST6422_H_
+
+#include "stv06xx_sensor.h"
+
+static int st6422_probe(struct sd *sd);
+static int st6422_start(struct sd *sd);
+static int st6422_init(struct sd *sd);
+static int st6422_init_controls(struct sd *sd);
+static int st6422_stop(struct sd *sd);
+
+const struct stv06xx_sensor stv06xx_sensor_st6422 = {
+	.name = "ST6422",
+	/* No known way to lower framerate in case of less bandwidth */
+	.min_packet_size = { 300, 847 },
+	.max_packet_size = { 300, 847 },
+	.init = st6422_init,
+	.init_controls = st6422_init_controls,
+	.probe = st6422_probe,
+	.start = st6422_start,
+	.stop = st6422_stop,
+};
+
+#endif
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c
new file mode 100644
index 000000000..dde1950bd
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "stv06xx_vv6410.h"
+
+static struct v4l2_pix_format vv6410_mode[] = {
+	{
+		356,
+		292,
+		V4L2_PIX_FMT_SGRBG8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 356 * 292,
+		.bytesperline = 356,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0
+	}
+};
+
+static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	int err = -EINVAL;
+
+	switch (ctrl->id) {
+	case V4L2_CID_HFLIP:
+		if (!gspca_dev->streaming)
+			return 0;
+		err = vv6410_set_hflip(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_VFLIP:
+		if (!gspca_dev->streaming)
+			return 0;
+		err = vv6410_set_vflip(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_GAIN:
+		err = vv6410_set_analog_gain(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE:
+		err = vv6410_set_exposure(gspca_dev, ctrl->val);
+		break;
+	}
+	return err;
+}
+
+static const struct v4l2_ctrl_ops vv6410_ctrl_ops = {
+	.s_ctrl = vv6410_s_ctrl,
+};
+
+static int vv6410_probe(struct sd *sd)
+{
+	u16 data;
+	int err;
+
+	err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
+	if (err < 0)
+		return -ENODEV;
+
+	if (data != 0x19)
+		return -ENODEV;
+
+	pr_info("vv6410 sensor detected\n");
+
+	sd->gspca_dev.cam.cam_mode = vv6410_mode;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
+	return 0;
+}
+
+static int vv6410_init_controls(struct sd *sd)
+{
+	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+	v4l2_ctrl_handler_init(hdl, 2);
+	/* Disable the hardware VFLIP and HFLIP as we currently lack a
+	   mechanism to adjust the image offset in such a way that
+	   we don't need to renegotiate the announced format */
+	/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
+	/*		V4L2_CID_HFLIP, 0, 1, 1, 0); */
+	/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
+	/*		V4L2_CID_VFLIP, 0, 1, 1, 0); */
+	v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
+			V4L2_CID_EXPOSURE, 0, 32768, 1, 20000);
+	v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
+			V4L2_CID_GAIN, 0, 15, 1, 10);
+	return hdl->error;
+}
+
+static int vv6410_init(struct sd *sd)
+{
+	int err = 0, i;
+
+	for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++)
+		stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
+
+	err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
+					 ARRAY_SIZE(vv6410_sensor_init));
+	return (err < 0) ? err : 0;
+}
+
+static int vv6410_start(struct sd *sd)
+{
+	int err;
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	struct cam *cam = &sd->gspca_dev.cam;
+	u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
+
+	if (priv & VV6410_SUBSAMPLE) {
+		gspca_dbg(gspca_dev, D_CONF, "Enabling subsampling\n");
+		stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
+		stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
+
+		stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
+	} else {
+		stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
+		stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
+		stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
+
+	}
+
+	/* Turn on LED */
+	err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
+	if (err < 0)
+		return err;
+
+	err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
+	if (err < 0)
+		return err;
+
+	gspca_dbg(gspca_dev, D_STREAM, "Starting stream\n");
+
+	return 0;
+}
+
+static int vv6410_stop(struct sd *sd)
+{
+	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+	int err;
+
+	/* Turn off LED */
+	err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
+	if (err < 0)
+		return err;
+
+	err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
+	if (err < 0)
+		return err;
+
+	gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
+
+	return 0;
+}
+
+static int vv6410_dump(struct sd *sd)
+{
+	u8 i;
+	int err = 0;
+
+	pr_info("Dumping all vv6410 sensor registers\n");
+	for (i = 0; i < 0xff && !err; i++) {
+		u16 data;
+		err = stv06xx_read_sensor(sd, i, &data);
+		pr_info("Register 0x%x contained 0x%x\n", i, data);
+	}
+	return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	u16 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
+	if (err < 0)
+		return err;
+
+	if (val)
+		i2c_data |= VV6410_HFLIP;
+	else
+		i2c_data &= ~VV6410_HFLIP;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set horizontal flip to %d\n", val);
+	err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
+
+	return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	u16 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
+	if (err < 0)
+		return err;
+
+	if (val)
+		i2c_data |= VV6410_VFLIP;
+	else
+		i2c_data &= ~VV6410_VFLIP;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set vertical flip to %d\n", val);
+	err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
+
+	return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set analog gain to %d\n", val);
+	err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
+
+	return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	struct sd *sd = (struct sd *) gspca_dev;
+	unsigned int fine, coarse;
+
+	val = (val * val >> 14) + val / 4;
+
+	fine = val % VV6410_CIF_LINELENGTH;
+	coarse = min(512, val / VV6410_CIF_LINELENGTH);
+
+	gspca_dbg(gspca_dev, D_CONF, "Set coarse exposure to %d, fine exposure to %d\n",
+		  coarse, fine);
+
+	err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
+	if (err < 0)
+		goto out;
+
+	err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
+	if (err < 0)
+		goto out;
+
+	err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8);
+	if (err < 0)
+		goto out;
+
+	err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff);
+
+out:
+	return err;
+}
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.h b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.h
new file mode 100644
index 000000000..343ddc304
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.h
@@ -0,0 +1,242 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * P/N 861037:      Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
+ * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000        ASIC
+ * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
+ */
+
+#ifndef STV06XX_VV6410_H_
+#define STV06XX_VV6410_H_
+
+#include "stv06xx_sensor.h"
+
+#define VV6410_COLS			416
+#define VV6410_ROWS			320
+
+/* Status registers */
+/* Chip identification number including revision indicator */
+#define VV6410_DEVICEH			0x00
+#define VV6410_DEVICEL			0x01
+
+/* User can determine whether timed I2C data
+   has been consumed by interrogating flag states */
+#define VV6410_STATUS0			0x02
+
+/* Current line counter value */
+#define VV6410_LINECOUNTH		0x03
+#define VV6410_LINECOUNTL		0x04
+
+/* End x coordinate of image size */
+#define VV6410_XENDH			0x05
+#define VV6410_XENDL			0x06
+
+/* End y coordinate of image size */
+#define VV6410_YENDH			0x07
+#define VV6410_YENDL			0x08
+
+/* This is the average pixel value returned from the
+   dark line offset cancellation algorithm */
+#define VV6410_DARKAVGH			0x09
+#define VV6410_DARKAVGL			0x0a
+
+/* This is the average pixel value returned from the
+   black line offset cancellation algorithm  */
+#define VV6410_BLACKAVGH		0x0b
+#define VV6410_BLACKAVGL		0x0c
+
+/* Flags to indicate whether the x or y image coordinates have been clipped */
+#define VV6410_STATUS1			0x0d
+
+/* Setup registers */
+
+/* Low-power/sleep modes & video timing */
+#define VV6410_SETUP0			0x10
+
+/* Various parameters */
+#define VV6410_SETUP1			0x11
+
+/* Contains pixel counter reset value used by external sync */
+#define VV6410_SYNCVALUE		0x12
+
+/* Frame grabbing modes (FST, LST and QCK) */
+#define VV6410_FGMODES			0x14
+
+/* FST and QCK mapping modes. */
+#define VV6410_PINMAPPING		0x15
+
+/* Data resolution */
+#define VV6410_DATAFORMAT		0x16
+
+/* Output coding formats */
+#define VV6410_OPFORMAT			0x17
+
+/* Various mode select bits */
+#define VV6410_MODESELECT		0x18
+
+/* Exposure registers */
+/* Fine exposure. */
+#define VV6410_FINEH			0x20
+#define VV6410_FINEL			0x21
+
+/* Coarse exposure */
+#define VV6410_COARSEH			0x22
+#define VV6410_COARSEL			0x23
+
+/* Analog gain setting */
+#define VV6410_ANALOGGAIN		0x24
+
+/* Clock division */
+#define VV6410_CLKDIV			0x25
+
+/* Dark line offset cancellation value */
+#define VV6410_DARKOFFSETH		0x2c
+#define VV6410_DARKOFFSETL		0x2d
+
+/* Dark line offset cancellation enable */
+#define VV6410_DARKOFFSETSETUP		0x2e
+
+/* Video timing registers */
+/* Line Length (Pixel Clocks) */
+#define VV6410_LINELENGTHH		0x52
+#define VV6410_LINELENGTHL		0x53
+
+/* X-co-ordinate of top left corner of region of interest (x-offset) */
+#define VV6410_XOFFSETH			0x57
+#define VV6410_XOFFSETL			0x58
+
+/* Y-coordinate of top left corner of region of interest (y-offset) */
+#define VV6410_YOFFSETH			0x59
+#define VV6410_YOFFSETL			0x5a
+
+/* Field length (Lines) */
+#define VV6410_FIELDLENGTHH		0x61
+#define VV6410_FIELDLENGTHL		0x62
+
+/* System registers */
+/* Black offset cancellation default value */
+#define VV6410_BLACKOFFSETH		0x70
+#define VV6410_BLACKOFFSETL		0x71
+
+/* Black offset cancellation setup */
+#define VV6410_BLACKOFFSETSETUP		0x72
+
+/* Analog Control Register 0 */
+#define VV6410_CR0			0x75
+
+/* Analog Control Register 1 */
+#define VV6410_CR1			0x76
+
+/* ADC Setup Register */
+#define VV6410_AS0			0x77
+
+/* Analog Test Register */
+#define VV6410_AT0			0x78
+
+/* Audio Amplifier Setup Register */
+#define VV6410_AT1			0x79
+
+#define VV6410_HFLIP			(1 << 3)
+#define VV6410_VFLIP			(1 << 4)
+
+#define VV6410_LOW_POWER_MODE		(1 << 0)
+#define VV6410_SOFT_RESET		(1 << 2)
+#define VV6410_PAL_25_FPS		(0 << 3)
+
+#define VV6410_CLK_DIV_2		(1 << 1)
+
+#define VV6410_FINE_EXPOSURE		320
+#define VV6410_COARSE_EXPOSURE		192
+#define VV6410_DEFAULT_GAIN		5
+
+#define VV6410_SUBSAMPLE		0x01
+#define VV6410_CROP_TO_QVGA		0x02
+
+#define VV6410_CIF_LINELENGTH		415
+
+static int vv6410_probe(struct sd *sd);
+static int vv6410_start(struct sd *sd);
+static int vv6410_init(struct sd *sd);
+static int vv6410_init_controls(struct sd *sd);
+static int vv6410_stop(struct sd *sd);
+static int vv6410_dump(struct sd *sd);
+
+/* V4L2 controls supported by the driver */
+static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
+static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
+static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
+
+const struct stv06xx_sensor stv06xx_sensor_vv6410 = {
+	.name = "ST VV6410",
+	.i2c_flush = 5,
+	.i2c_addr = 0x20,
+	.i2c_len = 1,
+	/* FIXME (see if we can lower packet_size-s, needs testing, and also
+	   adjusting framerate when the bandwidth gets lower) */
+	.min_packet_size = { 1023 },
+	.max_packet_size = { 1023 },
+	.init = vv6410_init,
+	.init_controls = vv6410_init_controls,
+	.probe = vv6410_probe,
+	.start = vv6410_start,
+	.stop = vv6410_stop,
+	.dump = vv6410_dump,
+};
+
+/* If NULL, only single value to write, stored in len */
+struct stv_init {
+	u16 addr;
+	u8 data;
+};
+
+static const struct stv_init stv_bridge_init[] = {
+	/* This reg is written twice. Some kind of reset? */
+	{STV_RESET, 0x80},
+	{STV_RESET, 0x00},
+	{STV_SCAN_RATE, 0x00},
+	{STV_I2C_FLUSH, 0x04},
+	{STV_REG00, 0x0b},
+	{STV_REG01, 0xa7},
+	{STV_REG02, 0xb7},
+	{STV_REG03, 0x00},
+	{STV_REG04, 0x00},
+	{0x1536, 0x02},
+	{0x1537, 0x00},
+	{0x1538, 0x60},
+	{0x1539, 0x01},
+	{0x153a, 0x20},
+	{0x153b, 0x01},
+};
+
+static const u8 vv6410_sensor_init[][2] = {
+	/* Setup registers */
+	{VV6410_SETUP0,	VV6410_SOFT_RESET},
+	{VV6410_SETUP0,	VV6410_LOW_POWER_MODE},
+	/* Use shuffled read-out mode */
+	{VV6410_SETUP1,	BIT(6)},
+	/* All modes to 1, FST, Fast QCK, Free running QCK, Free running LST, FST will qualify visible pixels */
+	{VV6410_FGMODES, BIT(6) | BIT(4) | BIT(2) | BIT(0)},
+	{VV6410_PINMAPPING, 0x00},
+	/* Pre-clock generator divide off */
+	{VV6410_DATAFORMAT, BIT(7) | BIT(0)},
+
+	{VV6410_CLKDIV,	VV6410_CLK_DIV_2},
+
+	/* System registers */
+	/* Enable voltage doubler */
+	{VV6410_AS0, BIT(6) | BIT(4) | BIT(3) | BIT(2) | BIT(1)},
+	{VV6410_AT0, 0x00},
+	/* Power up audio, differential */
+	{VV6410_AT1, BIT(4) | BIT(0)},
+};
+
+#endif