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sn9c102_mi0343.c
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/***************************************************************************
* Plug-in for MI-0343 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 mi0343;
static u8 mi0343_i2c_data[5+1];
static int mi0343_init(struct sn9c102_device* cam)
{
int err = 0;
err += sn9c102_write_reg(cam, 0x00, 0x10);
err += sn9c102_write_reg(cam, 0x00, 0x11);
err += sn9c102_write_reg(cam, 0x0a, 0x14);
err += sn9c102_write_reg(cam, 0x40, 0x01);
err += sn9c102_write_reg(cam, 0x20, 0x17);
err += sn9c102_write_reg(cam, 0x07, 0x18);
err += sn9c102_write_reg(cam, 0xa0, 0x19);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x0d, 0x00, 0x01, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x0d, 0x00, 0x00, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x03, 0x01, 0xe1, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x04, 0x02, 0x81, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x05, 0x00, 0x17, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x06, 0x00, 0x11, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
0x62, 0x04, 0x9a, 0, 0);
return err;
}
static int mi0343_get_ctrl(struct sn9c102_device* cam,
struct v4l2_control* ctrl)
{
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x09, 2+1, mi0343_i2c_data) < 0)
return -EIO;
ctrl->value = mi0343_i2c_data[2];
return 0;
case V4L2_CID_GAIN:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x35, 2+1, mi0343_i2c_data) < 0)
return -EIO;
break;
case V4L2_CID_HFLIP:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x20, 2+1, mi0343_i2c_data) < 0)
return -EIO;
ctrl->value = mi0343_i2c_data[3] & 0x20 ? 1 : 0;
return 0;
case V4L2_CID_VFLIP:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x20, 2+1, mi0343_i2c_data) < 0)
return -EIO;
ctrl->value = mi0343_i2c_data[3] & 0x80 ? 1 : 0;
return 0;
case V4L2_CID_RED_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x2d, 2+1, mi0343_i2c_data) < 0)
return -EIO;
break;
case V4L2_CID_BLUE_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x2c, 2+1, mi0343_i2c_data) < 0)
return -EIO;
break;
case SN9C102_V4L2_CID_GREEN_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
0x2e, 2+1, mi0343_i2c_data) < 0)
return -EIO;
break;
default:
return -EINVAL;
}
switch (ctrl->id) {
case V4L2_CID_GAIN:
case V4L2_CID_RED_BALANCE:
case V4L2_CID_BLUE_BALANCE:
case SN9C102_V4L2_CID_GREEN_BALANCE:
ctrl->value = mi0343_i2c_data[3] | (mi0343_i2c_data[2] << 8);
if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
ctrl->value -= 0x10;
else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
ctrl->value -= 0x60;
else if (ctrl->value >= 0xe0 && ctrl->value <= 0xff)
ctrl->value -= 0xe0;
}
return 0;
}
static int mi0343_set_ctrl(struct sn9c102_device* cam,
const struct v4l2_control* ctrl)
{
u16 reg = 0;
int err = 0;
switch (ctrl->id) {
case V4L2_CID_GAIN:
case V4L2_CID_RED_BALANCE:
case V4L2_CID_BLUE_BALANCE:
case SN9C102_V4L2_CID_GREEN_BALANCE:
if (ctrl->value <= (0x3f-0x10))
reg = 0x10 + ctrl->value;
else if (ctrl->value <= ((0x3f-0x10) + (0x7f-0x60)))
reg = 0x60 + (ctrl->value - (0x3f-0x10));
else
reg = 0xe0 + (ctrl->value - (0x3f-0x10) - (0x7f-0x60));
break;
}
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x09, ctrl->value, 0x00,
0, 0);
break;
case V4L2_CID_GAIN:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x35, reg >> 8, reg & 0xff,
0, 0);
break;
case V4L2_CID_HFLIP:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x20, ctrl->value ? 0x40:0x00,
ctrl->value ? 0x20:0x00,
0, 0);
break;
case V4L2_CID_VFLIP:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x20, ctrl->value ? 0x80:0x00,
ctrl->value ? 0x80:0x00,
0, 0);
break;
case V4L2_CID_RED_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x2d, reg >> 8, reg & 0xff,
0, 0);
break;
case V4L2_CID_BLUE_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x2c, reg >> 8, reg & 0xff,
0, 0);
break;
case SN9C102_V4L2_CID_GREEN_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x2b, reg >> 8, reg & 0xff,
0, 0);
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x2e, reg >> 8, reg & 0xff,
0, 0);
break;
default:
return -EINVAL;
}
return err ? -EIO : 0;
}
static int mi0343_set_crop(struct sn9c102_device* cam,
const struct v4l2_rect* rect)
{
struct sn9c102_sensor* s = &mi0343;
int err = 0;
u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
err += sn9c102_write_reg(cam, h_start, 0x12);
err += sn9c102_write_reg(cam, v_start, 0x13);
return err;
}
static int mi0343_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_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x0a, 0x00, 0x03, 0, 0);
err += sn9c102_write_reg(cam, 0x20, 0x19);
} else {
err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
mi0343.i2c_slave_id,
0x0a, 0x00, 0x05, 0, 0);
err += sn9c102_write_reg(cam, 0xa0, 0x19);
}
return err;
}
static struct sn9c102_sensor mi0343 = {
.name = "MI-0343",
.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
.frequency = SN9C102_I2C_100KHZ,
.interface = SN9C102_I2C_2WIRES,
.i2c_slave_id = 0x5d,
.init = &mi0343_init,
.qctrl = {
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.minimum = 0x00,
.maximum = 0x0f,
.step = 0x01,
.default_value = 0x06,
.flags = 0,
},
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "global gain",
.minimum = 0x00,
.maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),/*0x6d*/
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_HFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "horizontal mirror",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
.flags = 0,
},
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "vertical mirror",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
.flags = 0,
},
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "red balance",
.minimum = 0x00,
.maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = V4L2_CID_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "blue balance",
.minimum = 0x00,
.maximum = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
{
.id = SN9C102_V4L2_CID_GREEN_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "green balance",
.minimum = 0x00,
.maximum = ((0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0)),
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
},
.get_ctrl = &mi0343_get_ctrl,
.set_ctrl = &mi0343_set_ctrl,
.cropcap = {
.bounds = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
.defrect = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
},
.set_crop = &mi0343_set_crop,
.pix_format = {
.width = 640,
.height = 480,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
.priv = 8,
},
.set_pix_format = &mi0343_set_pix_format
};
int sn9c102_probe_mi0343(struct sn9c102_device* cam)
{
int err = 0;
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;
if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
2, mi0343_i2c_data) < 0)
return -EIO;
if (mi0343_i2c_data[4] != 0x32 && mi0343_i2c_data[3] != 0xe3)
return -ENODEV;
sn9c102_attach_sensor(cam, &mi0343);
return 0;
}