286 lines
7.0 KiB
C
286 lines
7.0 KiB
C
/*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#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;
|
|
|
|
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)
|
|
{
|
|
PDEBUG(D_STREAM, "Halting stream");
|
|
|
|
return 0;
|
|
}
|