/***************************************************************************
* Plug-in for OV7630 image sensor connected to the SN9C10x PC Camera *
* Controllers *
* *
* Copyright (C) 2005 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 *
* (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., 675 Mass Ave, Cambridge, MA 02139, USA. *
***************************************************************************/
#include "sn9c102_sensor.h"
static struct sn9c102_sensor ov7630;
static int ov7630_init(struct sn9c102_device* cam)
{
int err = 0;
err += sn9c102_write_reg(cam, 0x00, 0x14);
err += sn9c102_write_reg(cam, 0x60, 0x17);
err += sn9c102_write_reg(cam, 0x0f, 0x18);
err += sn9c102_write_reg(cam, 0x50, 0x19);
err += sn9c102_i2c_write(cam, 0x12, 0x8d);
err += sn9c102_i2c_write(cam, 0x11, 0x00);
err += sn9c102_i2c_write(cam, 0x15, 0x34);
err += sn9c102_i2c_write(cam, 0x16, 0x03);
err += sn9c102_i2c_write(cam, 0x17, 0x1c);
err += sn9c102_i2c_write(cam, 0x18, 0xbd);
err += sn9c102_i2c_write(cam, 0x19, 0x06);
err += sn9c102_i2c_write(cam, 0x1a, 0xf6);
err += sn9c102_i2c_write(cam, 0x1b, 0x04);
err += sn9c102_i2c_write(cam, 0x20, 0x44);
err += sn9c102_i2c_write(cam, 0x23, 0xee);
err += sn9c102_i2c_write(cam, 0x26, 0xa0);
err += sn9c102_i2c_write(cam, 0x27, 0x9a);
err += sn9c102_i2c_write(cam, 0x28, 0x20);
err += sn9c102_i2c_write(cam, 0x29, 0x30);
err += sn9c102_i2c_write(cam, 0x2f, 0x3d);
err += sn9c102_i2c_write(cam, 0x30, 0x24);
err += sn9c102_i2c_write(cam, 0x32, 0x86);
err += sn9c102_i2c_write(cam, 0x60, 0xa9);
err += sn9c102_i2c_write(cam, 0x61, 0x42);
err += sn9c102_i2c_write(cam, 0x65, 0x00);
err += sn9c102_i2c_write(cam, 0x69, 0x38);
err += sn9c102_i2c_write(cam, 0x6f, 0x88);
err += sn9c102_i2c_write(cam, 0x70, 0x0b);
err += sn9c102_i2c_write(cam, 0x71, 0x00);
err += sn9c102_i2c_write(cam, 0x74, 0x21);
err += sn9c102_i2c_write(cam, 0x7d, 0xf7);
return err;
}
static int ov7630_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, 0x10, ctrl->value >> 2);
err += sn9c102_i2c_write(cam, 0x76, ctrl->value & 0x03);
break;
case V4L2_CID_RED_BALANCE:
err += sn9c102_i2c_write(cam, 0x02, ctrl->value);
break;
case V4L2_CID_BLUE_BALANCE:
err += sn9c102_i2c_write(cam, 0x03, ctrl->value);
break;
case V4L2_CID_GAIN:
err += sn9c102_i2c_write(cam, 0x00, ctrl->value);
break;
case V4L2_CID_CONTRAST:
err += ctrl->value ? sn9c102_i2c_write(cam, 0x05,
(ctrl->value-1) | 0x20)
: sn9c102_i2c_write(cam, 0x05, 0x00);
break;
case V4L2_CID_BRIGHTNESS:
err += sn9c102_i2c_write(cam, 0x06, ctrl->value);
break;
case V4L2_CID_SATURATION:
err += sn9c102_i2c_write(cam, 0x03, ctrl->value << 4);
break;
case V4L2_CID_HUE:
err += ctrl->value ? sn9c102_i2c_write(cam, 0x04,
(ctrl->value-1) | 0x20)
: sn9c102_i2c_write(cam, 0x04, 0x00);
break;
case V4L2_CID_DO_WHITE_BALANCE:
err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
break;
case V4L2_CID_WHITENESS:
err += sn9c102_i2c_write(cam, 0x0d, ctrl->value);
break;
case V4L2_CID_AUTO_WHITE_BALANCE:
err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x09);
break;
case V4L2_CID_AUTOGAIN:
err += sn9c102_i2c_write(cam, 0x13, ctrl->value);
break;
case V4L2_CID_VFLIP:
err += sn9c102_i2c_write(cam, 0x75, 0x0e | (ctrl->value << 7));
break;
case V4L2_CID_BLACK_LEVEL:
err += sn9c102_i2c_write(cam, 0x25, ctrl->value);
break;
case SN9C102_V4L2_CID_BRIGHT_LEVEL:
err += sn9c102_i2c_write(cam, 0x24, ctrl->value);
break;
case SN9C102_V4L2_CID_GAMMA:
err += sn9c102_i2c_write(cam, 0x14, (ctrl->value << 2) | 0x80);
break;
case SN9C102_V4L2_CID_BAND_FILTER:
err += sn9c102_i2c_write(cam, 0x2d, ctrl->value << 2);
break;
default:
return -EINVAL;
}
return err ? -EIO : 0;
}
static int ov7630_set_crop(struct sn9c102_device* cam,
const struct v4l2_rect* rect)
{
struct sn9c102_sensor* s = &ov7630;
int err = 0;
u8 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
err += sn9c102_write_reg(cam, v_start, 0x13);
return err;
}
static int ov7630_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, 0x20, 0x19);
else
err += sn9c102_write_reg(cam, 0x50, 0x19);
return err;
}
static struct sn9c102_sensor ov7630 = {
.name = "OV7630",
.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
.sysfs_ops = SN9C102_I2C_WRITE,
.frequency = SN9C102_I2C_100KHZ,
.interface = SN9C102_I2C_2WIRES,
.i2c_slave_id = 0x21,
.init = &ov7630_init,
.qctrl = {
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "global gain",
.minimum = 0x00,
.maximum = 0x3f,
.step = 0x01,
.default_value = 0x14,
.flags = 0,
},
{
.id = V4L2_CID_HUE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "hue",
.minimum = 0x00,
.maximum = 0x1f+1,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "saturation",
.minimum = 0x00,
.maximum = 0x0f,
.step = 0x01,
.default_value = 0x08,
.flags = 0,
},
{
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "contrast",
.minimum = 0x00,
.maximum = 0x1f+1,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.minimum = 0x000,
.maximum = 0x3ff,
.step = 0x001,
.default_value = 0x83<<2,
.flags = 0,
},
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "red balance",
.minimum = 0x00,
.maximum = 0xff,
.step = 0x01,
.default_value = 0x3a,
.flags = 0,
},
{
.id = V4L2_CID_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "blue balance",
.minimum = 0x00,
.maximum = 0xff,
.step = 0x01,
.default_value = 0x77,
.flags = 0,
},
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "brightness",
.minimum = 0x00,
.maximum = 0xff,
.step = 0x01,
.default_value = 0xa0,
.flags = 0,
},
{
.id = V4L2_CID_DO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "white balance background: blue",
.minimum = 0x00,
.maximum = 0x3f,
.step = 0x01,
.default_value = 0x20,
.flags = 0,
},
{
.id = V4L2_CID_WHITENESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "white balance background: red",
.minimum = 0x00,
.maximum = 0x3f,
.step = 0x01,
.default_value = 0x20,
.flags = 0,
},
{
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "auto white balance",
.minimum = 0x00,
.maximum = 0x01,
.step = 0x01,
.default_value = 0x01,
.flags = 0,
},
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "gain & exposure mode",
.minimum = 0x00,
.maximum = 0x03,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "vertical flip",
.minimum = 0x00,
.maximum = 0x01,
.step = 0x01,
.default_value = 0x01,
.flags = 0,
},
{
.id = V4L2_CID_BLACK_LEVEL,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "black pixel ratio",
.minimum = 0x01,
.maximum = 0x9a,
.step = 0x01,
.default_value = 0x8a,
.flags = 0,
},
{
.id = SN9C102_V4L2_CID_BRIGHT_LEVEL,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "bright pixel ratio",
.minimum = 0x01,
.maximum = 0x9a,
.step = 0x01,
.default_value = 0x10,
.flags = 0,
},
{
.id = SN9C102_V4L2_CID_BAND_FILTER,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "band filter",
.minimum = 0x00,
.maximum = 0x01,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = SN9C102_V4L2_CID_GAMMA,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "rgb gamma",
.minimum = 0x00,
.maximum = 0x01,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
},
.set_ctrl = &ov7630_set_ctrl,
.cropcap = {
.bounds = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
.defrect = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
},
.set_crop = &ov7630_set_crop,
.pix_format = {
.width = 640,
.height = 480,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
.priv = 8,
},
.set_pix_format = &ov7630_set_pix_format
};
int sn9c102_probe_ov7630(struct sn9c102_device* cam)
{
int err = 0;
sn9c102_attach_sensor(cam, &ov7630);
if (le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x608f &&
le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x602c)
return -ENODEV;
err += sn9c102_write_reg(cam, 0x01, 0x01);
err += sn9c102_write_reg(cam, 0x00, 0x01);
err += sn9c102_write_reg(cam, 0x28, 0x17);
if (err)
return -EIO;
err += sn9c102_i2c_write(cam, 0x0b, 0);
if (err)
return -ENODEV;
return 0;
}
