portapack-mayhem/firmware/common/i2c_pp.cpp
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "i2c_pp.hpp"
void I2C::start(const I2CConfig& config) {
i2cStart(_driver, &config);
}
void I2C::stop() {
i2cStop(_driver);
}
bool I2C::transfer(
const address_t slave_address,
const uint8_t* const data_tx,
const size_t count_tx,
uint8_t* const data_rx,
const size_t count_rx,
systime_t timeout) {
i2cAcquireBus(_driver);
const msg_t status = i2cMasterTransmitTimeout(
_driver, slave_address, data_tx, count_tx, data_rx, count_rx, timeout);
i2cReleaseBus(_driver);
return (status == RDY_OK);
}
bool I2C::receive(
const address_t slave_address,
uint8_t* const data,
const size_t count,
systime_t timeout) {
i2cAcquireBus(_driver);
const msg_t status = i2cMasterReceiveTimeout(
_driver, slave_address, data, count, timeout);
i2cReleaseBus(_driver);
return (status == RDY_OK);
}
bool I2C::transmit(
const address_t slave_address,
const uint8_t* const data,
const size_t count,
systime_t timeout) {
return transfer(slave_address, data, count, NULL, 0, timeout);
}