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i2c_api.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_I2C_API_H 00017 #define MBED_I2C_API_H 00018 00019 #include "device.h" 00020 00021 #if DEVICE_I2C 00022 00023 #ifdef __cplusplus 00024 extern "C" { 00025 #endif 00026 00027 typedef struct i2c_s i2c_t; 00028 00029 void i2c_init (i2c_t *obj, PinName sda, PinName scl); 00030 void i2c_frequency (i2c_t *obj, int hz); 00031 int i2c_start (i2c_t *obj); 00032 void i2c_stop (i2c_t *obj); 00033 int i2c_read (i2c_t *obj, int address, char *data, int length, int stop); 00034 int i2c_write (i2c_t *obj, int address, const char *data, int length, int stop); 00035 void i2c_reset (i2c_t *obj); 00036 int i2c_byte_read (i2c_t *obj, int last); 00037 int i2c_byte_write (i2c_t *obj, int data); 00038 00039 #if DEVICE_I2CSLAVE 00040 void i2c_slave_mode (i2c_t *obj, int enable_slave); 00041 int i2c_slave_receive(i2c_t *obj); 00042 int i2c_slave_read (i2c_t *obj, char *data, int length); 00043 int i2c_slave_write (i2c_t *obj, const char *data, int length); 00044 void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask); 00045 #endif 00046 00047 #ifdef __cplusplus 00048 } 00049 #endif 00050 00051 #endif 00052 00053 #endif
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