mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-04 23:45:26 +00:00
83b65ba6ce
* message on dev list change * dc detect * added sht3x sensor. * separete environment data from light * max17055 moved to i2c dev * sht fix, goterror detection fix * fix ext sensor app display for a lot of devices. * added bh1750 driver * autoscan on main view * added devlist mutex * better timing * fix h2 sw8 on poweron by usb
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "i2c_pp.hpp"
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void I2C::start(const I2CConfig& config) {
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i2cStart(_driver, &config);
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}
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void I2C::stop() {
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i2cStop(_driver);
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}
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bool I2C::probe(i2caddr_t addr, systime_t timeout) {
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i2cAcquireBus(_driver);
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chSysLock();
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_driver->errors = I2CD_NO_ERROR;
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_driver->state = I2C_ACTIVE_TX;
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msg_t rdymsg = i2c_lld_master_transmit_timeout(_driver, addr, nullptr, 0, nullptr, 0, timeout);
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if (rdymsg == RDY_TIMEOUT)
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_driver->state = I2C_LOCKED;
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else
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_driver->state = I2C_READY;
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chSysUnlock();
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i2cReleaseBus(_driver);
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return (rdymsg == RDY_OK);
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}
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bool I2C::transfer(
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const address_t slave_address,
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const uint8_t* const data_tx,
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const size_t count_tx,
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uint8_t* const data_rx,
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const size_t count_rx,
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systime_t timeout) {
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i2cAcquireBus(_driver);
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const msg_t status = i2cMasterTransmitTimeout(
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_driver, slave_address, data_tx, count_tx, data_rx, count_rx, timeout);
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i2cReleaseBus(_driver);
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return (status == RDY_OK);
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}
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bool I2C::receive(
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const address_t slave_address,
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uint8_t* const data,
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const size_t count,
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systime_t timeout) {
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i2cAcquireBus(_driver);
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const msg_t status = i2cMasterReceiveTimeout(
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_driver, slave_address, data, count, timeout);
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i2cReleaseBus(_driver);
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return (status == RDY_OK);
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}
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bool I2C::transmit(
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const address_t slave_address,
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const uint8_t* const data,
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const size_t count,
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systime_t timeout) {
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return transfer(slave_address, data, count, NULL, 0, timeout);
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}
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