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linux/drivers/media/video/sn9c102/sn9c102_mi0360.c

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/***************************************************************************
* Plug-in for MI-0360 image sensor connected to the SN9C1xx PC Camera *
* Controllers *
* *
* Copyright (C) 2007 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 int mi0360_init(struct sn9c102_device* cam)
{
struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
int err = 0;
err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11},
{0x0a, 0x14}, {0x40, 0x01},
{0x20, 0x17}, {0x07, 0x18},
{0xa0, 0x19}, {0x02, 0x1c},
{0x03, 0x1d}, {0x0f, 0x1e},
{0x0c, 0x1f}, {0x00, 0x20},
{0x10, 0x21}, {0x20, 0x22},
{0x30, 0x23}, {0x40, 0x24},
{0x50, 0x25}, {0x60, 0x26},
{0x70, 0x27}, {0x80, 0x28},
{0x90, 0x29}, {0xa0, 0x2a},
{0xb0, 0x2b}, {0xc0, 0x2c},
{0xd0, 0x2d}, {0xe0, 0x2e},
{0xf0, 0x2f}, {0xff, 0x30});
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
0x00, 0x01, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
0x00, 0x00, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
0x01, 0xe1, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
0x02, 0x81, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
0x00, 0x17, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
0x00, 0x11, 0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x62,
0x04, 0x9a, 0, 0);
return err;
}
static int mi0360_get_ctrl(struct sn9c102_device* cam,
struct v4l2_control* ctrl)
{
struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
u8 data[5+1];
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x09,
2+1, data) < 0)
return -EIO;
ctrl->value = data[2];
return 0;
case V4L2_CID_GAIN:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x35,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3];
return 0;
case V4L2_CID_RED_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2c,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3];
return 0;
case V4L2_CID_BLUE_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2d,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3];
return 0;
case SN9C102_V4L2_CID_GREEN_BALANCE:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x2e,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3];
return 0;
case V4L2_CID_HFLIP:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3] & 0x20 ? 1 : 0;
return 0;
case V4L2_CID_VFLIP:
if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20,
2+1, data) < 0)
return -EIO;
ctrl->value = data[3] & 0x80 ? 1 : 0;
return 0;
default:
return -EINVAL;
}
return 0;
}
static int mi0360_set_ctrl(struct sn9c102_device* cam,
const struct v4l2_control* ctrl)
{
struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
int err = 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x09, ctrl->value, 0x00,
0, 0);
break;
case V4L2_CID_GAIN:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x35, 0x03, ctrl->value,
0, 0);
break;
case V4L2_CID_RED_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x2c, 0x03, ctrl->value,
0, 0);
break;
case V4L2_CID_BLUE_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x2d, 0x03, ctrl->value,
0, 0);
break;
case SN9C102_V4L2_CID_GREEN_BALANCE:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x2b, 0x03, ctrl->value,
0, 0);
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x2e, 0x03, ctrl->value,
0, 0);
break;
case V4L2_CID_HFLIP:
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->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, s, 4, s->i2c_slave_id,
0x20, ctrl->value ? 0x80:0x00,
ctrl->value ? 0x80:0x00,
0, 0);
break;
default:
return -EINVAL;
}
return err ? -EIO : 0;
}
static int mi0360_set_crop(struct sn9c102_device* cam,
const struct v4l2_rect* rect)
{
struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
int err = 0;
u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
err += sn9c102_write_reg(cam, h_start, 0x12);
err += sn9c102_write_reg(cam, v_start, 0x13);
return err;
}
static int mi0360_set_pix_format(struct sn9c102_device* cam,
const struct v4l2_pix_format* pix)
{
struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
int err = 0;
if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) {
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x0a, 0x00, 0x02, 0, 0);
err += sn9c102_write_reg(cam, 0x20, 0x19);
} else {
err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
0x0a, 0x00, 0x05, 0, 0);
err += sn9c102_write_reg(cam, 0x60, 0x19);
}
return err;
}
static struct sn9c102_sensor mi0360 = {
.name = "MI-0360",
.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
.supported_bridge = BRIDGE_SN9C103,
.frequency = SN9C102_I2C_100KHZ,
.interface = SN9C102_I2C_2WIRES,
.i2c_slave_id = 0x5d,
.init = &mi0360_init,
.qctrl = {
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.minimum = 0x00,
.maximum = 0x0f,
.step = 0x01,
.default_value = 0x05,
.flags = 0,
},
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "global gain",
.minimum = 0x00,
.maximum = 0x7f,
.step = 0x01,
.default_value = 0x25,
.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_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "blue balance",
.minimum = 0x00,
.maximum = 0x7f,
.step = 0x01,
.default_value = 0x0f,
.flags = 0,
},
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "red balance",
.minimum = 0x00,
.maximum = 0x7f,
.step = 0x01,
.default_value = 0x32,
.flags = 0,
},
{
.id = SN9C102_V4L2_CID_GREEN_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "green balance",
.minimum = 0x00,
.maximum = 0x7f,
.step = 0x01,
.default_value = 0x25,
.flags = 0,
},
},
.get_ctrl = &mi0360_get_ctrl,
.set_ctrl = &mi0360_set_ctrl,
.cropcap = {
.bounds = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
.defrect = {
.left = 0,
.top = 0,
.width = 640,
.height = 480,
},
},
.set_crop = &mi0360_set_crop,
.pix_format = {
.width = 640,
.height = 480,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
.priv = 8,
},
.set_pix_format = &mi0360_set_pix_format
};
int sn9c102_probe_mi0360(struct sn9c102_device* cam)
{
u8 data[5+1];
int err;
err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01},
{0x28, 0x17});
if (err)
return -EIO;
if (sn9c102_i2c_try_raw_read(cam, &mi0360, mi0360.i2c_slave_id, 0x00,
2+1, data) < 0)
return -EIO;
if (data[2] != 0x82 || data[3] != 0x43)
return -ENODEV;
sn9c102_attach_sensor(cam, &mi0360);
return 0;
}
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