79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2010 LeafLabs LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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/**
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* @file HardWire.h
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* @author Trystan Jones <crenn6977@gmail.com>
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* @brief Wire library, uses the hardware I2C available in the Maple to
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* interact with I2C slave devices.
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*/
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/*
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* Library created by crenn to use the new WireBase system and allow Arduino
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* users easy interaction with the I2C Hardware in a familiar method.
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*/
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#ifndef _HARDWIRE_H_
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#define _HARDWIRE_H_
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#include "WireBase.h"
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#include "wirish.h"
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#include <libmaple/i2c.h>
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class HardWire : public WireBase {
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private:
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i2c_dev* sel_hard;
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uint8 dev_flags;
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protected:
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/*
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* Processes the incoming I2C message defined by WireBase to the
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* hardware. If an error occured, restart the I2C device.
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*/
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uint8 process(uint8);
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uint8 process();
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public:
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/*
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* Check if devsel is within range and enable selected I2C interface with
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* passed flags
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*/
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HardWire(uint8, uint8 = 0);
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/*
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* Shuts down (disables) the hardware I2C
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*/
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void end();
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void setClock(uint32_t frequencyHz);
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/*
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* Disables the I2C device and remove the device address.
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*/
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~HardWire();
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void begin(uint8 = 0x00);
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};
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extern HardWire Wire;
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#endif // _HARDWIRE_H_
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