/***************************************************************************
- * Plug-in for PAS202BCB image sensor connected to the SN9C10x PC Camera *
+ * Driver for PAS202BCB image sensor connected to the SN9C10[12] PC Camera *
* Controllers *
* *
* Copyright (C) 2004 by Carlos Eduardo Medaglia Dyonisio *
* <medaglia@undl.org.br> *
* http://cadu.homelinux.com:8080/ *
* *
- * DAC Magnitude, DAC sign, exposure and green gain controls added by *
- * Luca Risolia <luca.risolia@studio.unibo.it> *
- * *
* 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 *
err += sn9c102_write_reg(cam, 0x00, 0x11);
err += sn9c102_write_reg(cam, 0x00, 0x14);
err += sn9c102_write_reg(cam, 0x20, 0x17);
- err += sn9c102_write_reg(cam, 0x30, 0x19);
+ err += sn9c102_write_reg(cam, 0x20, 0x19);
err += sn9c102_write_reg(cam, 0x09, 0x18);
- err += sn9c102_i2c_write(cam, 0x02, 0x14);
+ err += sn9c102_i2c_write(cam, 0x02, 0x0c);
err += sn9c102_i2c_write(cam, 0x03, 0x40);
+ err += sn9c102_i2c_write(cam, 0x04, 0x07);
+ err += sn9c102_i2c_write(cam, 0x05, 0x25);
err += sn9c102_i2c_write(cam, 0x0d, 0x2c);
err += sn9c102_i2c_write(cam, 0x0e, 0x01);
err += sn9c102_i2c_write(cam, 0x0f, 0xa9);
- err += sn9c102_i2c_write(cam, 0x10, 0x08);
+ err += sn9c102_i2c_write(cam, 0x08, 0x01);
+ err += sn9c102_i2c_write(cam, 0x0b, 0x01);
err += sn9c102_i2c_write(cam, 0x13, 0x63);
err += sn9c102_i2c_write(cam, 0x15, 0x70);
err += sn9c102_i2c_write(cam, 0x11, 0x01);
struct v4l2_control* ctrl)
{
switch (ctrl->id) {
- case V4L2_CID_EXPOSURE:
- {
- int r1 = sn9c102_i2c_read(cam, 0x04),
- r2 = sn9c102_i2c_read(cam, 0x05);
- if (r1 < 0 || r2 < 0)
- return -EIO;
- ctrl->value = (r1 << 6) | (r2 & 0x3f);
- }
- return 0;
case V4L2_CID_RED_BALANCE:
if ((ctrl->value = sn9c102_i2c_read(cam, 0x09)) < 0)
return -EIO;
return -EIO;
ctrl->value &= 0x1f;
return 0;
- case SN9C102_V4L2_CID_GREEN_BALANCE:
- if ((ctrl->value = sn9c102_i2c_read(cam, 0x08)) < 0)
+ case V4L2_CID_BRIGHTNESS:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x06)) < 0)
return -EIO;
ctrl->value &= 0x0f;
return 0;
- case SN9C102_V4L2_CID_DAC_MAGNITUDE:
- if ((ctrl->value = sn9c102_i2c_read(cam, 0x0c)) < 0)
- return -EIO;
- return 0;
- case SN9C102_V4L2_CID_DAC_SIGN:
- if ((ctrl->value = sn9c102_i2c_read(cam, 0x0b)) < 0)
- return -EIO;
- ctrl->value &= 0x01;
- return 0;
default:
return -EINVAL;
}
int err = 0;
switch (ctrl->id) {
- case V4L2_CID_EXPOSURE:
- err += sn9c102_i2c_write(cam, 0x04, ctrl->value >> 6);
- err += sn9c102_i2c_write(cam, 0x05, ctrl->value & 0x3f);
- break;
case V4L2_CID_RED_BALANCE:
- err += sn9c102_i2c_write(cam, 0x09, ctrl->value);
+ err += sn9c102_i2c_write(cam, 0x09, ctrl->value & 0x0f);
break;
case V4L2_CID_BLUE_BALANCE:
- err += sn9c102_i2c_write(cam, 0x07, ctrl->value);
+ err += sn9c102_i2c_write(cam, 0x07, ctrl->value & 0x0f);
break;
case V4L2_CID_GAIN:
- err += sn9c102_i2c_write(cam, 0x10, ctrl->value);
- break;
- case SN9C102_V4L2_CID_GREEN_BALANCE:
- err += sn9c102_i2c_write(cam, 0x08, ctrl->value);
- break;
- case SN9C102_V4L2_CID_DAC_MAGNITUDE:
- err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
+ err += sn9c102_i2c_write(cam, 0x10, ctrl->value & 0x1f);
break;
- case SN9C102_V4L2_CID_DAC_SIGN:
- {
- int r;
- err += (r = sn9c102_i2c_read(cam, 0x0b)) < 0 ? r : 0;
- err += sn9c102_i2c_write(cam, 0x0b, r | ctrl->value);
- }
+ case V4L2_CID_BRIGHTNESS:
+ err += sn9c102_i2c_write(cam, 0x06, 0x0f-(ctrl->value & 0x0f));
break;
default:
return -EINVAL;
}
err += sn9c102_i2c_write(cam, 0x11, 0x01);
- return err ? -EIO : 0;
+ return err;
}
.slave_write_id = 0x40,
.init = &pas202bcb_init,
.qctrl = {
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "exposure",
- .minimum = 0x01e5,
- .maximum = 0x3fff,
- .step = 0x01,
- .default_value = 0x01e5,
- .flags = 0,
- },
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "global gain",
- .minimum = 0x00,
- .maximum = 0x1f,
- .step = 0x01,
- .default_value = 0x0c,
- .flags = 0,
- },
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.flags = 0,
},
{
- .id = SN9C102_V4L2_CID_GREEN_BALANCE,
+ .id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
- .name = "green balance",
+ .name = "global gain",
.minimum = 0x00,
- .maximum = 0x0f,
+ .maximum = 0x1f,
.step = 0x01,
- .default_value = 0x00,
+ .default_value = 0x0c,
.flags = 0,
},
{
- .id = SN9C102_V4L2_CID_DAC_MAGNITUDE,
+ .id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
- .name = "DAC magnitude",
+ .name = "brightness",
.minimum = 0x00,
- .maximum = 0xff,
- .step = 0x01,
- .default_value = 0x04,
- .flags = 0,
- },
- {
- .id = SN9C102_V4L2_CID_DAC_SIGN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "DAC sign",
- .minimum = 0x00,
- .maximum = 0x01,
+ .maximum = 0x0f,
.step = 0x01,
- .default_value = 0x01,
+ .default_value = 0x0f,
.flags = 0,
},
},
* NOTE: do NOT change the values!
*/
err += sn9c102_write_reg(cam, 0x01, 0x01); /* sensor power down */
- err += sn9c102_write_reg(cam, 0x40, 0x01); /* sensor power on */
+ err += sn9c102_write_reg(cam, 0x00, 0x01); /* sensor power on */
err += sn9c102_write_reg(cam, 0x28, 0x17); /* sensor clock at 24 MHz */
if (err)
return -EIO;