75c7bd8d12
Signed-off-by: Stefan Andritoiu <stefan.andritoiu@gmail.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* 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 BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include <string>
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#include <stdexcept>
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#include <unistd.h>
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#include <stdlib.h>
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#include "max44000.hpp"
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using namespace upm;
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MAX44000::MAX44000 (int bus, int devAddr) : m_i2cMaxControlCtx(bus) {
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m_name = "MAX44000";
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m_maxControlAddr = devAddr;
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m_bus = bus;
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mraa::Result ret = m_i2cMaxControlCtx.address(m_maxControlAddr);
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if (ret != mraa::SUCCESS) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_i2c_address() failed");
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}
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// i2cWriteReg (MCR, 0x2C);
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// i2cWriteReg (TCR, 0x6);
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}
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uint16_t
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MAX44000::getProximity () {
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uint16_t data = 0;
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data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
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data = data | i2cReadReg_8 (ALSDATA_LOW);
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return data;
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}
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float
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MAX44000::getValue() {
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return (float) MAX44000::getProximity();
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}
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uint16_t
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MAX44000::getAmbient () {
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uint16_t data = 0;
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data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
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data = data | i2cReadReg_8 (ALSDATA_LOW);
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return data;
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}
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/*
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* **************
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* private area
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* **************
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*/
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uint8_t
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MAX44000::i2cReadReg_8 (int reg) {
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uint8_t data;
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m_i2cMaxControlCtx.writeByte(reg);
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m_i2cMaxControlCtx.read(&data, 0x1);
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return data;
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}
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uint16_t
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MAX44000::i2cReadReg_16 (int reg) {
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uint16_t data;
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m_i2cMaxControlCtx.writeByte(reg);
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m_i2cMaxControlCtx.read((uint8_t *)&data, 0x2);
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return data;
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}
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mraa::Result
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MAX44000::i2cWriteReg (uint8_t reg, uint8_t value) {
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mraa::Result error = mraa::SUCCESS;
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uint8_t data[2] = { reg, value };
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error = m_i2cMaxControlCtx.write (data, 2);
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return error;
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}
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