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/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 LeafLabs LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file HardWire.cpp
* @author Trystan Jones <crenn6977@gmail.com>
* @brief Wire library, uses the hardware I2C available in the Maple to
* interact with I2C slave devices.
*/
/*
* Library created by crenn to use the new WireBase system and allow Arduino
* users easy interaction with the I2C Hardware in a familiar method.
*/
#include <Wire/HardWire.h>
uint8 HardWire::process() {
int8 res = i2c_master_xfer(sel_hard, &itc_msg, 1, 0);
if (res != 0) {
i2c_disable(sel_hard);
i2c_master_enable(sel_hard, (I2C_BUS_RESET | dev_flags));
}
return 0;
}
// TODO: Add in Error Handling if devsel is out of range for other Maples
HardWire::HardWire(uint8 dev_sel, uint8 flags) {
if (dev_sel == 1) {
sel_hard = I2C1;
} else if (dev_sel == 2) {
sel_hard = I2C2;
} else {
ASSERT(1);
}
dev_flags=flags;
i2c_master_enable(sel_hard, flags);
}
HardWire::~HardWire() {
i2c_disable(sel_hard);
sel_hard = 0;
}
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