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/* OmniVision* camera chip driver private definitions for core code and
* chip-specific code
*
* Copyright (c) 1999-2004 Mark McClelland
*
* 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. NO WARRANTY OF ANY KIND is expressed or implied.
*
* * OmniVision is a trademark of OmniVision Technologies, Inc. This driver
* is not sponsored or developed by them.
*/
#ifndef __LINUX_OVCAMCHIP_PRIV_H
#define __LINUX_OVCAMCHIP_PRIV_H
#include <linux/i2c.h>
#include <media/v4l2-subdev.h>
#include <media/ovcamchip.h>
#ifdef DEBUG
extern int ovcamchip_debug;
#endif
#define PDEBUG(level, fmt, args...) \
if (ovcamchip_debug >= (level)) pr_debug("[%s:%d] " fmt "\n", \
__func__, __LINE__ , ## args)
#define DDEBUG(level, dev, fmt, args...) \
if (ovcamchip_debug >= (level)) dev_dbg(dev, "[%s:%d] " fmt "\n", \
__func__, __LINE__ , ## args)
/* Number of times to retry chip detection. Increase this if you are getting
* "Failed to init camera chip" */
#define I2C_DETECT_RETRIES 10
struct ovcamchip_regvals {
unsigned char reg;
unsigned char val;
};
struct ovcamchip_ops {
int (*init)(struct i2c_client *);
int (*free)(struct i2c_client *);
int (*command)(struct i2c_client *, unsigned int, void *);
};
struct ovcamchip {
struct v4l2_subdev sd;
struct ovcamchip_ops *sops;
void *spriv; /* Private data for OV7x10.c etc... */
int subtype; /* = SEN_OV7610 etc... */
int mono; /* Monochrome chip? (invalid until init) */
int initialized; /* OVCAMCHIP_CMD_INITIALIZE was successful */
};
static inline struct ovcamchip *to_ovcamchip(struct v4l2_subdev *sd)
{
return container_of(sd, struct ovcamchip, sd);
}
extern struct ovcamchip_ops ov6x20_ops;
extern struct ovcamchip_ops ov6x30_ops;
extern struct ovcamchip_ops ov7x10_ops;
extern struct ovcamchip_ops ov7x20_ops;
extern struct ovcamchip_ops ov76be_ops;
/* --------------------------------- */
/* I2C I/O */
/* --------------------------------- */
static inline int ov_read(struct i2c_client *c, unsigned char reg,
unsigned char *value)
{
int rc;
rc = i2c_smbus_read_byte_data(c, reg);
*value = (unsigned char) rc;
return rc;
}
static inline int ov_write(struct i2c_client *c, unsigned char reg,
unsigned char value )
{
return i2c_smbus_write_byte_data(c, reg, value);
}
/* --------------------------------- */
/* FUNCTION PROTOTYPES */
/* --------------------------------- */
/* Functions in ovcamchip_core.c */
extern int ov_write_regvals(struct i2c_client *c,
struct ovcamchip_regvals *rvals);
extern int ov_write_mask(struct i2c_client *c, unsigned char reg,
unsigned char value, unsigned char mask);
#endif
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