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/***************************************************************************
* Plug-in for TAS5130D1B image sensor connected to the SN9C10x PC Camera *
* Controllers *
* *
* Copyright (C) 2004-2005 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 tas5130d1b;
static struct v4l2_control tas5130d1b_gain, tas5130d1b_exposure;
static int tas5130d1b_init(struct sn9c102_device* cam)
{
int err = 0;
err += sn9c102_write_reg(cam, 0x01, 0x01);
err += sn9c102_write_reg(cam, 0x20, 0x17);
err += sn9c102_write_reg(cam, 0x04, 0x01);
err += sn9c102_write_reg(cam, 0x01, 0x10);
err += sn9c102_write_reg(cam, 0x00, 0x11);
err += sn9c102_write_reg(cam, 0x00, 0x14);
err += sn9c102_write_reg(cam, 0x60, 0x17);
err += sn9c102_write_reg(cam, 0x07, 0x18);
return err;
}
static int tas5130d1b_get_ctrl(struct sn9c102_device* cam,
struct v4l2_control* ctrl)
{
switch (ctrl->id) {
case V4L2_CID_GAIN:
ctrl->value = tas5130d1b_gain.value;
break;
case V4L2_CID_EXPOSURE:
ctrl->value = tas5130d1b_exposure.value;
break;
default:
return -EINVAL;
}
return 0;
}
static int tas5130d1b_set_ctrl(struct sn9c102_device* cam,
const struct v4l2_control* ctrl)
{
int err = 0;
switch (ctrl->id) {
case V4L2_CID_GAIN:
if (!(err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value)))
tas5130d1b_gain.value = ctrl->value;
break;
case V4L2_CID_EXPOSURE:
if (!(err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value)))
tas5130d1b_exposure.value = ctrl->value;
break;
default:
return -EINVAL;
}
return err ? -EIO : 0;
}
static int tas5130d1b_set_crop(struct sn9c102_device* cam,
const struct v4l2_rect* rect)
{
struct sn9c102_sensor* s = &tas5130d1b;
u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
int err = 0;
err += sn9c102_write_reg(cam, h_start, 0x12);
err += sn9c102_write_reg(cam, v_start, 0x13);
/* Do NOT change! */
err += sn9c102_write_reg(cam, 0x1f, 0x1a);
err += sn9c102_write_reg(cam, 0x1a, 0x1b);
err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
return err;
}
static int tas5130d1b_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, 0x63, 0x19);
else
err += sn9c102_write_reg(cam, 0xf3, 0x19);
return err;
}
static struct sn9c102_sensor tas5130d1b = {
.name = "TAS5130D1B",
.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
.sysfs_ops = SN9C102_I2C_WRITE,
.frequency = SN9C102_I2C_100KHZ,
.interface = SN9C102_I2C_3WIRES,
.init = &tas5130d1b_init,
.qctrl = {
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "global gain",
.minimum = 0x00,
.maximum = 0xf6,
.step = 0x02,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.minimum = 0x00,
.maximum = 0x47,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
},
.get_ctrl = &tas5130d1b_get_ctrl,
.set_ctrl = &tas5130d1b_set_ctrl,
.cropcap = {
.bounds = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
.defrect = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
},
.set_crop = &tas5130d1b_set_crop,
.pix_format = {
.width = 640,
.height = 480,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
.priv = 8,
},
.set_pix_format = &tas5130d1b_set_pix_format
};
int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
{
/* This sensor has no identifiers, so let's attach it anyway */
sn9c102_attach_sensor(cam, &tas5130d1b);
/* Sensor detection is based on USB pid/vid */
if (le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x6025 &&
le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x60aa)
return -ENODEV;
return 0;
}
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