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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_I2C_API_H
#define MBED_I2C_API_H
#include "device.h"
#if DEVICE_I2C
#ifdef __cplusplus
extern "C" {
#endif
typedef struct i2c_s i2c_t;
enum {
I2C_ERROR_NO_SLAVE = -1,
I2C_ERROR_BUS_BUSY = -2
};
void i2c_init (i2c_t *obj, PinName sda, PinName scl);
void i2c_frequency (i2c_t *obj, int hz);
int i2c_start (i2c_t *obj);
int i2c_stop (i2c_t *obj);
int i2c_read (i2c_t *obj, int address, char *data, int length, int stop);
int i2c_write (i2c_t *obj, int address, const char *data, int length, int stop);
void i2c_reset (i2c_t *obj);
int i2c_byte_read (i2c_t *obj, int last);
int i2c_byte_write (i2c_t *obj, int data);
#if DEVICE_I2CSLAVE
void i2c_slave_mode (i2c_t *obj, int enable_slave);
int i2c_slave_receive(i2c_t *obj);
int i2c_slave_read (i2c_t *obj, char *data, int length);
int i2c_slave_write (i2c_t *obj, const char *data, int length);
int i2c_slave_byte_read(i2c_t *obj, int last);
int i2c_slave_byte_write(i2c_t *obj, int data);
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask);
#endif
#ifdef __cplusplus
}
#endif
#endif
#endif
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