MAV'RIC
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00001 /******************************************************************************* 00002 * Copyright (c) 2009-2016, MAV'RIC Development Team 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * 00011 * 2. Redistributions in binary form must reproduce the above copyright notice, 00012 * this list of conditions and the following disclaimer in the documentation 00013 * and/or other materials provided with the distribution. 00014 * 00015 * 3. Neither the name of the copyright holder nor the names of its contributors 00016 * may be used to endorse or promote products derived from this software without 00017 * specific prior written permission. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00023 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00024 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00025 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00026 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00027 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00029 * POSSIBILITY OF SUCH DAMAGE. 00030 ******************************************************************************/ 00031 00032 /******************************************************************************* 00033 * \file i2c.hpp 00034 * 00035 * \author MAV'RIC Team 00036 * 00037 * \brief Abstract class for i2c peripherals 00038 * 00039 ******************************************************************************/ 00040 00041 #ifndef I2C_HPP_ 00042 #define I2C_HPP_ 00043 00044 #include <cstdint> 00045 00046 class I2c 00047 { 00048 public: 00049 00056 virtual bool init(void) = 0; 00057 00058 00067 virtual bool probe(uint32_t address) = 0; 00068 00069 00080 virtual bool write(const uint8_t* buffer, uint32_t nbytes, uint32_t address) = 0; 00081 00082 00093 virtual bool read(uint8_t* buffer, uint32_t nbytes, uint32_t address) = 0; 00094 00095 00108 virtual bool transfer(uint8_t* out_buffer, uint32_t ntxbytes, uint8_t* in_buffer, uint32_t nrxbytes, uint32_t address) 00109 { 00110 bool ret = true; 00111 00112 // By default do two separate operations for read and write 00113 // Override this method if two-way transfer is supported. 00114 ret &= write(out_buffer, ntxbytes, address); 00115 ret &= read(in_buffer, nrxbytes, address); 00116 00117 return ret; 00118 }; 00119 }; 00120 00121 00122 #endif /* I2C_HPP_ */