// 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 != 0 x19)
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, 0 x02);
stv06xx_write_bridge(sd, STV_X_CTRL, 0 x06);
stv06xx_write_bridge(sd, STV_SCAN_RATE, 0 x10);
} else {
stv06xx_write_bridge(sd, STV_Y_CTRL, 0 x01);
stv06xx_write_bridge(sd, STV_X_CTRL, 0 x0a);
stv06xx_write_bridge(sd, STV_SCAN_RATE, 0 x00);
}
/* 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 < 0 xff && !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, 0 xf0 | (val & 0 xf));
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 & 0 xff);
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 & 0 xff);
out:
return err;
}
Messung V0.5 in Prozent C=94 H=93 G=93
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-07)
¤
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