/***************************************************************************
- * Driver for PAS202BCB image sensor connected to the SN9C10[12] PC Camera *
+ * Plug-in for PAS202BCB image sensor connected to the SN9C10x PC Camera *
* Controllers *
* *
* Copyright (C) 2004 by Carlos Eduardo Medaglia Dyonisio *
* <medaglia@undl.org.br> *
* http://cadu.homelinux.com:8080/ *
* *
+ * DAC Magnitude, 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, 0x20, 0x19);
+ err += sn9c102_write_reg(cam, 0x30, 0x19);
err += sn9c102_write_reg(cam, 0x09, 0x18);
- err += sn9c102_i2c_write(cam, 0x02, 0x0c);
+ err += sn9c102_i2c_write(cam, 0x02, 0x14);
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, 0x08, 0x01);
- err += sn9c102_i2c_write(cam, 0x0b, 0x01);
+ err += sn9c102_i2c_write(cam, 0x10, 0x08);
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 V4L2_CID_BRIGHTNESS:
- if ((ctrl->value = sn9c102_i2c_read(cam, 0x06)) < 0)
+ case SN9C102_V4L2_CID_GREEN_BALANCE:
+ if ((ctrl->value = sn9c102_i2c_read(cam, 0x08)) < 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;
default:
return -EINVAL;
}
}
+static int pas202bcb_set_pix_format(struct sn9c102_device* cam,
+ const struct v4l2_pix_format* pix)
+{
+ int err = 0;
+
+ if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
+ err += sn9c102_write_reg(cam, 0x24, 0x17);
+ else
+ err += sn9c102_write_reg(cam, 0x20, 0x17);
+
+ return err;
+}
+
+
static int pas202bcb_set_ctrl(struct sn9c102_device* cam,
const struct v4l2_control* ctrl)
{
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 & 0x0f);
+ err += sn9c102_i2c_write(cam, 0x09, ctrl->value);
break;
case V4L2_CID_BLUE_BALANCE:
- err += sn9c102_i2c_write(cam, 0x07, ctrl->value & 0x0f);
+ err += sn9c102_i2c_write(cam, 0x07, ctrl->value);
break;
case V4L2_CID_GAIN:
- err += sn9c102_i2c_write(cam, 0x10, ctrl->value & 0x1f);
+ 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 V4L2_CID_BRIGHTNESS:
- err += sn9c102_i2c_write(cam, 0x06, 0x0f-(ctrl->value & 0x0f));
+ case SN9C102_V4L2_CID_DAC_MAGNITUDE:
+ err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
break;
default:
return -EINVAL;
}
err += sn9c102_i2c_write(cam, 0x11, 0x01);
- return err;
+ return err ? -EIO : 0;
}
.name = "PAS202BCB",
.maintainer = "Carlos Eduardo Medaglia Dyonisio "
"<medaglia@undl.org.br>",
+ .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
.frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ,
.interface = SN9C102_I2C_2WIRES,
- .slave_read_id = 0x40,
- .slave_write_id = 0x40,
+ .i2c_slave_id = 0x40,
.init = &pas202bcb_init,
.qctrl = {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x01e5,
+ .maximum = 0x3fff,
+ .step = 0x0001,
+ .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 = V4L2_CID_GAIN,
+ .id = SN9C102_V4L2_CID_GREEN_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
- .name = "global gain",
+ .name = "green balance",
.minimum = 0x00,
- .maximum = 0x1f,
+ .maximum = 0x0f,
.step = 0x01,
- .default_value = 0x0c,
+ .default_value = 0x00,
.flags = 0,
},
{
- .id = V4L2_CID_BRIGHTNESS,
+ .id = SN9C102_V4L2_CID_DAC_MAGNITUDE,
.type = V4L2_CTRL_TYPE_INTEGER,
- .name = "brightness",
+ .name = "DAC magnitude",
.minimum = 0x00,
- .maximum = 0x0f,
+ .maximum = 0xff,
.step = 0x01,
- .default_value = 0x0f,
+ .default_value = 0x04,
.flags = 0,
},
},
.height = 480,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
.priv = 8,
- }
+ },
+ .set_pix_format = &pas202bcb_set_pix_format
};
* NOTE: do NOT change the values!
*/
err += sn9c102_write_reg(cam, 0x01, 0x01); /* sensor power down */
- err += sn9c102_write_reg(cam, 0x00, 0x01); /* sensor power on */
+ err += sn9c102_write_reg(cam, 0x40, 0x01); /* sensor power on */
err += sn9c102_write_reg(cam, 0x28, 0x17); /* sensor clock at 24 MHz */
if (err)
return -EIO;
r0 = sn9c102_i2c_try_read(cam, &pas202bcb, 0x00);
r1 = sn9c102_i2c_try_read(cam, &pas202bcb, 0x01);
-
+
if (r0 < 0 || r1 < 0)
return -EIO;
git://git.onelab.eu / linux-2.6.git / blobdiff