/* 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/ovcamchip.h> #ifdef DEBUG extern int ovcamchip_debug; #endif #define PDEBUG(level, fmt, args...) \ if (ovcamchip_debug >= (level)) pr_debug("[%s:%d] " fmt "\n", \ __FUNCTION__, __LINE__ , ## args) #define DDEBUG(level, dev, fmt, args...) \ if (ovcamchip_debug >= (level)) dev_dbg(dev, "[%s:%d] " fmt "\n", \ __FUNCTION__, __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 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 */ }; /* --------------------------------- */ /* 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