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