V4L/DVB (12082): gspca_stv06xx: Add support for st6422 bridge and sensor
Add support for st6422 bridge and sensor to the stv06xx gspca sub driver,
tested with:
Logitech QuickCam Messenger 046d:08f0 ST6422 integrated
Logitech QuickCam Mess. Plus 046d:08f6 ST6422 integrated
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/stv06xx/Makefile b/drivers/media/video/gspca/stv06xx/Makefile
index feeaa94..2f3c3a6 100644
--- a/drivers/media/video/gspca/stv06xx/Makefile
+++ b/drivers/media/video/gspca/stv06xx/Makefile
@@ -3,7 +3,8 @@
gspca_stv06xx-objs := stv06xx.o \
stv06xx_vv6410.o \
stv06xx_hdcs.o \
- stv06xx_pb0100.o
+ stv06xx_pb0100.o \
+ stv06xx_st6422.o
EXTRA_CFLAGS += -Idrivers/media/video/gspca
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx.c b/drivers/media/video/gspca/stv06xx/stv06xx.c
index e573c34..0da8e0d 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx.c
+++ b/drivers/media/video/gspca/stv06xx/stv06xx.c
@@ -92,11 +92,10 @@
{
int err = 0;
- if (IS_850(sd)) {
+ if (sd->bridge == BRIDGE_STV610) {
struct usb_device *udev = sd->gspca_dev.dev;
__u8 *buf = sd->gspca_dev.usb_buf;
- /* Quickam Web needs an extra packet */
buf[0] = 0;
err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
0x04, 0x40, 0x1704, 0, buf, 1,
@@ -253,7 +252,7 @@
err = sd->sensor->init(sd);
- if (dump_sensor)
+ if (dump_sensor && sd->sensor->dump)
sd->sensor->dump(sd);
return (err < 0) ? err : 0;
@@ -318,6 +317,8 @@
__u8 *data, /* isoc packet */
int len) /* iso packet length */
{
+ struct sd *sd = (struct sd *) gspca_dev;
+
PDEBUG(D_PACK, "Packet of length %d arrived", len);
/* A packet may contain several frames
@@ -343,14 +344,29 @@
if (len < chunk_len) {
PDEBUG(D_ERR, "URB packet length is smaller"
" than the specified chunk length");
+ 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:
PDEBUG(D_PACK, "Frame data packet detected");
+ 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, frame,
data, chunk_len);
break;
@@ -365,6 +381,9 @@
gspca_frame_add(gspca_dev, FIRST_PACKET,
frame, data, 0);
+ if (sd->bridge == BRIDGE_ST6422)
+ sd->to_skip = gspca_dev->width * 4;
+
if (chunk_len)
PDEBUG(D_ERR, "Chunk length is "
"non-zero on a SOF");
@@ -395,8 +414,12 @@
/* Unknown chunk with 2 bytes of data,
occurs 2-3 times per USB interrupt */
break;
+ case 0x42ff:
+ PDEBUG(D_PACK, "Chunk 0x42ff detected");
+ /* Special chunk seen sometimes on the ST6422 */
+ break;
default:
- PDEBUG(D_PACK, "Unknown chunk %d detected", id);
+ PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id);
/* Unknown chunk */
}
data += chunk_len;
@@ -428,11 +451,16 @@
cam = &gspca_dev->cam;
sd->desc = sd_desc;
+ 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;
@@ -457,9 +485,20 @@
/* -- module initialisation -- */
static const __devinitdata struct usb_device_id device_table[] = {
- {USB_DEVICE(0x046d, 0x0840)}, /* QuickCam Express */
- {USB_DEVICE(0x046d, 0x0850)}, /* LEGO cam / QuickCam Web */
- {USB_DEVICE(0x046d, 0x0870)}, /* Dexxa WebCam USB */
+ /* QuickCam Express */
+ {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },
+ /* LEGO cam / QuickCam Web */
+ {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },
+ /* Dexxa WebCam USB */
+ {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },
+ /* QuickCam Messenger */
+ {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },
+ /* QuickCam Communicate */
+ {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },
+ /* QuickCam Messenger (new) */
+ {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },
+ /* QuickCam Messenger (new) */
+ {USB_DEVICE(0x046D, 0x08DA), .driver_info = BRIDGE_ST6422 },
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx.h b/drivers/media/video/gspca/stv06xx/stv06xx.h
index 1207e7d..9df7137 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx.h
+++ b/drivers/media/video/gspca/stv06xx/stv06xx.h
@@ -93,6 +93,17 @@
/* 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);
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
index b169038..3039ec2 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
@@ -434,7 +434,7 @@
hdcs->exp.er = 100;
/*
- * Frame rate on HDCS-1000 0x46D:0x840 depends on PSMP:
+ * Frame rate on HDCS-1000 with STV600 depends on PSMP:
* 4 = doesn't work at all
* 5 = 7.8 fps,
* 6 = 6.9 fps,
@@ -443,7 +443,7 @@
* 15 = 4.4 fps,
* 31 = 2.8 fps
*
- * Frame rate on HDCS-1000 0x46D:0x870 depends on PSMP:
+ * 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
@@ -453,7 +453,7 @@
* 24 = 6.3 fps
* 30 = 5.4 fps
*/
- hdcs->psmp = IS_870(sd) ? 20 : 5;
+ hdcs->psmp = (sd->bridge == BRIDGE_STV602) ? 20 : 5;
sd->sensor_priv = hdcs;
@@ -530,7 +530,7 @@
int i, err = 0;
/* Set the STV0602AA in STV0600 emulation mode */
- if (IS_870(sd))
+ if (sd->bridge == BRIDGE_STV602)
stv06xx_write_bridge(sd, STV_STV0600_EMULATION, 1);
/* Execute the bridge init */
@@ -558,7 +558,7 @@
return err;
/* Set PGA sample duration
- (was 0x7E for IS_870, but caused slow framerate with HDCS-1020) */
+ (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);
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_sensor.h b/drivers/media/video/gspca/stv06xx/stv06xx_sensor.h
index e88c42f..934b9ce 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx_sensor.h
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_sensor.h
@@ -32,14 +32,13 @@
#include "stv06xx.h"
-#define IS_850(sd) ((sd)->gspca_dev.dev->descriptor.idProduct == 0x850)
-#define IS_870(sd) ((sd)->gspca_dev.dev->descriptor.idProduct == 0x870)
#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 */
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c
new file mode 100644
index 0000000..87cb5b9
--- /dev/null
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c
@@ -0,0 +1,453 @@
+/*
+ * 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
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#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
+ },
+};
+
+static const struct ctrl st6422_ctrl[] = {
+#define BRIGHTNESS_IDX 0
+ {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = 0,
+ .maximum = 31,
+ .step = 1,
+ .default_value = 3
+ },
+ .set = st6422_set_brightness,
+ .get = st6422_get_brightness
+ },
+#define CONTRAST_IDX 1
+ {
+ {
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 15,
+ .step = 1,
+ .default_value = 11
+ },
+ .set = st6422_set_contrast,
+ .get = st6422_get_contrast
+ },
+#define GAIN_IDX 2
+ {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gain",
+ .minimum = 0,
+ .maximum = 255,
+ .step = 1,
+ .default_value = 64
+ },
+ .set = st6422_set_gain,
+ .get = st6422_get_gain
+ },
+#define EXPOSURE_IDX 3
+ {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Exposure",
+ .minimum = 0,
+ .maximum = 1023,
+ .step = 1,
+ .default_value = 256
+ },
+ .set = st6422_set_exposure,
+ .get = st6422_get_exposure
+ },
+};
+
+static int st6422_probe(struct sd *sd)
+{
+ int i;
+ s32 *sensor_settings;
+
+ if (sd->bridge != BRIDGE_ST6422)
+ return -ENODEV;
+
+ info("st6422 sensor detected");
+
+ sensor_settings = kmalloc(ARRAY_SIZE(st6422_ctrl) * sizeof(s32),
+ GFP_KERNEL);
+ if (!sensor_settings)
+ return -ENOMEM;
+
+ sd->gspca_dev.cam.cam_mode = st6422_mode;
+ sd->gspca_dev.cam.nmodes = ARRAY_SIZE(st6422_mode);
+ sd->desc.ctrls = st6422_ctrl;
+ sd->desc.nctrls = ARRAY_SIZE(st6422_ctrl);
+ sd->sensor_priv = sensor_settings;
+
+ for (i = 0; i < sd->desc.nctrls; i++)
+ sensor_settings[i] = st6422_ctrl[i].qctrl.default_value;
+
+ return 0;
+}
+
+static int st6422_init(struct sd *sd)
+{
+ int err = 0, i;
+
+ 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 },
+/* antiflimmer?? 0xa2 ger perfekt bild mot monitor */
+
+ { 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-> ljus area blir morkare. */
+/* low val -> ljus area blir ljusare. */
+ { 0x1502, 0xc2 },
+/* high val-> ljus area blir morkare. */
+/* low val -> ljus area blir ljusare. */
+ { 0x1503, 0x45 },
+/* high val-> ljus area blir morkare. */
+/* low val -> ljus area blir ljusare. */
+
+ { 0x1505, 0x02 },
+/* 2 : 324x248 80352 bytes */
+/* 7 : 248x162 40176 bytes */
+/* c+f: 162*124 20088 bytes */
+
+ { 0x150e, 0x8e },
+ { 0x150f, 0x37 },
+ { 0x15c0, 0x00 },
+ { 0x15c1, 1023 }, /* 160x120, ISOC_PACKET_SIZE */
+ { 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 void st6422_disconnect(struct sd *sd)
+{
+ sd->sensor = NULL;
+ kfree(sd->sensor_priv);
+}
+
+static int st6422_start(struct sd *sd)
+{
+ int err, packet_size;
+ struct cam *cam = &sd->gspca_dev.cam;
+ s32 *sensor_settings = sd->sensor_priv;
+ struct usb_host_interface *alt;
+ struct usb_interface *intf;
+
+ 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) {
+ PDEBUG(D_ERR, "Couldn't get altsetting");
+ return -EIO;
+ }
+
+ packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
+ err = stv06xx_write_bridge(sd, 0x15c1, packet_size);
+ if (err < 0)
+ return err;
+
+ 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;
+
+ err = st6422_set_brightness(&sd->gspca_dev,
+ sensor_settings[BRIGHTNESS_IDX]);
+ if (err < 0)
+ return err;
+
+ err = st6422_set_contrast(&sd->gspca_dev,
+ sensor_settings[CONTRAST_IDX]);
+ if (err < 0)
+ return err;
+
+ err = st6422_set_exposure(&sd->gspca_dev,
+ sensor_settings[EXPOSURE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = st6422_set_gain(&sd->gspca_dev,
+ sensor_settings[GAIN_IDX]);
+ if (err < 0)
+ return err;
+
+ PDEBUG(D_STREAM, "Starting stream");
+
+ return 0;
+}
+
+static int st6422_stop(struct sd *sd)
+{
+ PDEBUG(D_STREAM, "Halting stream");
+
+ return 0;
+}
+
+static int st6422_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[BRIGHTNESS_IDX];
+
+ PDEBUG(D_V4L2, "Read brightness %d", *val);
+
+ return 0;
+}
+
+static int st6422_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ sensor_settings[BRIGHTNESS_IDX] = val;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ /* val goes from 0 -> 31 */
+ PDEBUG(D_V4L2, "Set brightness to %d", val);
+ err = stv06xx_write_bridge(sd, 0x1432, val);
+ if (err < 0)
+ return err;
+
+ /* commit settings */
+ err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+ return (err < 0) ? err : 0;
+}
+
+static int st6422_get_contrast(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[CONTRAST_IDX];
+
+ PDEBUG(D_V4L2, "Read contrast %d", *val);
+
+ return 0;
+}
+
+static int st6422_set_contrast(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ sensor_settings[CONTRAST_IDX] = val;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ /* Val goes from 0 -> 15 */
+ PDEBUG(D_V4L2, "Set contrast to %d\n", val);
+ err = stv06xx_write_bridge(sd, 0x143a, 0xf0 | val);
+ if (err < 0)
+ return err;
+
+ /* commit settings */
+ err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+ return (err < 0) ? err : 0;
+}
+
+static int st6422_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[GAIN_IDX];
+
+ PDEBUG(D_V4L2, "Read gain %d", *val);
+
+ return 0;
+}
+
+static int st6422_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ sensor_settings[GAIN_IDX] = val;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ PDEBUG(D_V4L2, "Set gain to %d", val);
+
+ /* Set red, green, blue, gain */
+ err = stv06xx_write_bridge(sd, 0x0509, val);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_bridge(sd, 0x050a, val);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_bridge(sd, 0x050b, val);
+ if (err < 0)
+ return err;
+
+ /* 2 mystery writes */
+ err = stv06xx_write_bridge(sd, 0x050c, 0x2a);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_bridge(sd, 0x050d, 0x01);
+ if (err < 0)
+ return err;
+
+ /* commit settings */
+ err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+ return (err < 0) ? err : 0;
+}
+
+static int st6422_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[EXPOSURE_IDX];
+
+ PDEBUG(D_V4L2, "Read exposure %d", *val);
+
+ return 0;
+}
+
+static int st6422_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ sensor_settings[EXPOSURE_IDX] = val;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ PDEBUG(D_V4L2, "Set exposure to %d\n", val);
+ err = stv06xx_write_bridge(sd, 0x143d, val & 0xff);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_bridge(sd, 0x143e, val >> 8);
+ if (err < 0)
+ return err;
+
+ /* commit settings */
+ err = stv06xx_write_bridge(sd, 0x143f, 0x01);
+ return (err < 0) ? err : 0;
+}
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_st6422.h b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.h
new file mode 100644
index 0000000..b2d45fe
--- /dev/null
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.h
@@ -0,0 +1,59 @@
+/*
+ * 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
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#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_stop(struct sd *sd);
+static void st6422_disconnect(struct sd *sd);
+
+/* V4L2 controls supported by the driver */
+static int st6422_get_brightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int st6422_set_brightness(struct gspca_dev *gspca_dev, __s32 val);
+static int st6422_get_contrast(struct gspca_dev *gspca_dev, __s32 *val);
+static int st6422_set_contrast(struct gspca_dev *gspca_dev, __s32 val);
+static int st6422_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
+static int st6422_set_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int st6422_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
+static int st6422_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
+
+const struct stv06xx_sensor stv06xx_sensor_st6422 = {
+ .name = "ST6422",
+ .init = st6422_init,
+ .probe = st6422_probe,
+ .start = st6422_start,
+ .stop = st6422_stop,
+ .disconnect = st6422_disconnect,
+};
+
+#endif