diff options
Diffstat (limited to 'peripheral/libupm/src/ta12200/ta12200.cxx')
-rw-r--r-- | peripheral/libupm/src/ta12200/ta12200.cxx | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/peripheral/libupm/src/ta12200/ta12200.cxx b/peripheral/libupm/src/ta12200/ta12200.cxx deleted file mode 100644 index f9d3cb0..0000000 --- a/peripheral/libupm/src/ta12200/ta12200.cxx +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Author: Jon Trulson <jtrulson@ics.com> - * Copyright (c) 2014 Intel Corporation. - * - * 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. - */ - -#include <iostream> -#include <string> -#include <stdexcept> - -#include "ta12200.h" - -using namespace upm; -using namespace std; - -TA12200::TA12200(int pin) -{ - initClock(); - - if ( !(m_aio = mraa_aio_init(pin)) ) - { - throw std::invalid_argument(std::string(__FUNCTION__) + - ": mraa_aio_init() failed, invalid pin?"); - return; - } -} - -TA12200::~TA12200() -{ - mraa_aio_close(m_aio); -} - -void TA12200::initClock() -{ - gettimeofday(&m_startTime, NULL); -} - -uint32_t TA12200::getMillis() -{ - struct timeval elapsed, now; - uint32_t elapse; - - // get current time - gettimeofday(&now, NULL); - - // compute the delta since m_startTime - if( (elapsed.tv_usec = now.tv_usec - m_startTime.tv_usec) < 0 ) - { - elapsed.tv_usec += 1000000; - elapsed.tv_sec = now.tv_sec - m_startTime.tv_sec - 1; - } - else - { - elapsed.tv_sec = now.tv_sec - m_startTime.tv_sec; - } - - elapse = (uint32_t)((elapsed.tv_sec * 1000) + (elapsed.tv_usec / 1000)); - - // never return 0 - if (elapse == 0) - elapse = 1; - - return elapse; -} - - -unsigned int TA12200::highestValue() -{ - unsigned int hiVal = 0; - unsigned int val; - uint32_t start = getMillis(); - - // 1 second - while (getMillis() < (start + 1000)) - { - val = mraa_aio_read(m_aio); - if (val > hiVal) - hiVal = val; - } - - return hiVal; -} - -float TA12200::milliAmps(unsigned int val, int res) -{ - float ampCurrent; - float effectiveVal; - - // From grove wiki page: - // minimum_current=1/1024*5/800*2000000/1.414=8.6(mA) - // Only for sinusoidal alternating current - //ampCurrent = float(val) / float(res) * 5.0 / 800.0 * 2000000.0; - ampCurrent = float(val) / float(res) * 12500.0; - effectiveVal = ampCurrent/1.414; - return (effectiveVal); -} - |