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/*
* (C) Copyright 2002
* Humboldt Solutions Ltd, <adrian@humboldt.co.uk>
*
* 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., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#ifndef _I2C_H
#define _I2C_H
struct i2c_bus;
typedef struct i2c_fn
{
void (* start)(struct i2c_bus *bus);
void (* stop)(struct i2c_bus *bus);
int (* master_write)(struct i2c_bus *bus, int target, int address,
const uint8_t *data, int length);
int (* master_read)(struct i2c_bus *bus, int target, int address,
uint8_t *data, int length);
} i2c_fn;
typedef struct i2c_bus
{
const i2c_fn *fn;
char *tag;
void *data;
struct i2c_bus *next;
} i2c_bus;
i2c_bus *find_i2c_bus(const char *name);
int register_i2c_bus(const i2c_fn *fn, char *tag, void *data);
void i2c_start(struct i2c_bus *bus);
void i2c_stop(struct i2c_bus *bus);
int i2c_master_write(struct i2c_bus *bus, int target, int address,
const uint8_t *data, int length);
int i2c_master_read(struct i2c_bus *bus, int target, int address,
uint8_t *data, int length);
void init_i2c_nvram(const char *i2c_tag);
extern i2c_fn mpc107_i2c_fn;
#endif
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