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>
This commit is contained in:
Hans de Goede 2009-06-17 18:37:57 -03:00 committed by Mauro Carvalho Chehab
parent ae49c40461
commit 8668d504d7
7 changed files with 577 additions and 15 deletions

View File

@ -3,7 +3,8 @@ obj-$(CONFIG_USB_STV06XX) += gspca_stv06xx.o
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

View File

@ -92,11 +92,10 @@ static int stv06xx_write_sensor_finish(struct sd *sd)
{
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 @@ static int stv06xx_init(struct gspca_dev *gspca_dev)
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 @@ 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;
PDEBUG(D_PACK, "Packet of length %d arrived", len);
/* A packet may contain several frames
@ -343,14 +344,29 @@ static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
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 @@ static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
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 @@ static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
/* 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 @@ static int stv06xx_config(struct gspca_dev *gspca_dev,
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 @@ static int stv06xx_config(struct gspca_dev *gspca_dev,
/* -- 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);

View File

@ -93,6 +93,17 @@ struct sd {
/* 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);

View File

@ -434,7 +434,7 @@ static int hdcs_probe_1x00(struct sd *sd)
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 @@ static int hdcs_probe_1x00(struct sd *sd)
* 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 @@ static int hdcs_probe_1x00(struct sd *sd)
* 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 @@ static int hdcs_init(struct sd *sd)
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 @@ static int hdcs_init(struct sd *sd)
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);

View File

@ -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 */

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@ -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;
}

View File

@ -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