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/***************************************************************************
* API for image sensors connected to ET61X[12]51 PC Camera Controllers *
* *
* Copyright (C) 2006 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. *
***************************************************************************/
#ifndef _ET61X251_SENSOR_H_
#define _ET61X251_SENSOR_H_
#include <linux/usb.h>
#include <linux/videodev.h>
#include <linux/device.h>
#include <linux/stddef.h>
#include <linux/errno.h>
#include <asm/types.h>
struct et61x251_device;
struct et61x251_sensor;
/*****************************************************************************/
extern int et61x251_probe_tas5130d1b(struct et61x251_device* cam);
#define ET61X251_SENSOR_TABLE \
/* Weak detections must go at the end of the list */ \
static int (*et61x251_sensor_table[])(struct et61x251_device*) = { \
&et61x251_probe_tas5130d1b, \
NULL, \
};
extern void
et61x251_attach_sensor(struct et61x251_device* cam,
struct et61x251_sensor* sensor);
/*****************************************************************************/
extern int et61x251_write_reg(struct et61x251_device*, u8 value, u16 index);
extern int et61x251_read_reg(struct et61x251_device*, u16 index);
extern int et61x251_i2c_write(struct et61x251_device*, u8 address, u8 value);
extern int et61x251_i2c_read(struct et61x251_device*, u8 address);
extern int et61x251_i2c_try_write(struct et61x251_device*,
struct et61x251_sensor*, u8 address,
u8 value);
extern int et61x251_i2c_try_read(struct et61x251_device*,
struct et61x251_sensor*, u8 address);
extern int et61x251_i2c_raw_write(struct et61x251_device*, u8 n, u8 data1,
u8 data2, u8 data3, u8 data4, u8 data5,
u8 data6, u8 data7, u8 data8, u8 address);
/*****************************************************************************/
enum et61x251_i2c_sysfs_ops {
ET61X251_I2C_READ = 0x01,
ET61X251_I2C_WRITE = 0x02,
};
enum et61x251_i2c_interface {
ET61X251_I2C_2WIRES,
ET61X251_I2C_3WIRES,
};
/* Repeat start condition when RSTA is high */
enum et61x251_i2c_rsta {
ET61X251_I2C_RSTA_STOP = 0x00, /* stop then start */
ET61X251_I2C_RSTA_REPEAT = 0x01, /* repeat start */
};
#define ET61X251_MAX_CTRLS V4L2_CID_LASTP1-V4L2_CID_BASE+10
struct et61x251_sensor {
char name[32];
enum et61x251_i2c_sysfs_ops sysfs_ops;
enum et61x251_i2c_interface interface;
u8 i2c_slave_id;
enum et61x251_i2c_rsta rsta;
struct v4l2_rect active_pixel; /* left and top define FVSX and FVSY */
struct v4l2_queryctrl qctrl[ET61X251_MAX_CTRLS];
struct v4l2_cropcap cropcap;
struct v4l2_pix_format pix_format;
int (*init)(struct et61x251_device* cam);
int (*get_ctrl)(struct et61x251_device* cam,
struct v4l2_control* ctrl);
int (*set_ctrl)(struct et61x251_device* cam,
const struct v4l2_control* ctrl);
int (*set_crop)(struct et61x251_device* cam,
const struct v4l2_rect* rect);
int (*set_pix_format)(struct et61x251_device* cam,
const struct v4l2_pix_format* pix);
const struct usb_device* usbdev;
/* Private */
struct v4l2_queryctrl _qctrl[ET61X251_MAX_CTRLS];
struct v4l2_rect _rect;
};
#endif /* _ET61X251_SENSOR_H_ */
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