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synced 2025-03-14 20:47:30 +03:00
maxds3231m: Added new sensor support get/set data&time and get temperature (NOT TESTED YET)
Signed-off-by: Kiveisha Yevgeniy <yevgeniy.kiveisha@intel.com>
This commit is contained in:
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5
src/maxds3231m/CMakeLists.txt
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src/maxds3231m/CMakeLists.txt
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set (libname "maxds3231m")
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set (libdescription "realtime clock sensor from MAX family")
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set (module_src ${libname}.cxx)
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set (module_h ${libname}.h)
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upm_module_init()
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8
src/maxds3231m/jsupm_maxds3231m.i
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src/maxds3231m/jsupm_maxds3231m.i
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%module jsupm_maxds3231m
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%include "../upm.i"
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%{
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#include "maxds3231m.h"
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%}
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%include "maxds3231m.h"
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141
src/maxds3231m/maxds3231m.cxx
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src/maxds3231m/maxds3231m.cxx
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/*
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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 <unistd.h>
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#include <stdlib.h>
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#include "maxds3231m.h"
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using namespace upm;
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struct DS3231Exception : public std::exception {
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std::string message;
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DS3231Exception (std::string msg) : message (msg) { }
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~DS3231Exception () throw () { }
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const char* what() const throw () { return message.c_str(); }
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};
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MAXDS3231M::MAXDS3231M (int bus, int devAddr) {
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m_name = "MAXDS3231M";
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m_i2cAddr = devAddr;
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m_bus = bus;
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m_i2Ctx = mraa_i2c_init(m_bus);
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mraa_result_t ret = mraa_i2c_address(m_i2Ctx, m_i2cAddr);
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if (ret != MRAA_SUCCESS) {
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throw DS3231Exception ("Couldn't initilize I2C.");
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}
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}
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MAXDS3231M::~MAXDS3231M() {
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mraa_i2c_stop(m_i2Ctx);
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}
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void
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MAXDS3231M::setDate (Time3231 &time) {
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uint8_t *data = (uint8_t *)&time;
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i2cWriteReg_N (TIME_CAL_ADDR, 7, data);
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}
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bool
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MAXDS3231M::getDate (Time3231 &time) {
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uint8_t buffer[7];
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// We need 7 bytes of data.
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if (i2cReadReg_N (TIME_CAL_ADDR, 7, buffer) > 6) {
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uint8_t century = (buffer[5] & 0x80) >> 7;
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time.second = BCDtoDEC(buffer[0]);
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time.minute = BCDtoDEC(buffer[1]);
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time.hour = BCDtoDEC(buffer[2]);
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time.day = BCDtoDEC(buffer[4]);
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time.month = BCDtoDEC(buffer[5] & 0x1F);
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time.year = (century == 1) ? 2000 + BCDtoDEC(buffer[6]) : 1900 + BCDtoDEC(buffer[6]);
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time.weekDay = BCDtoDEC(buffer[3]);
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return true;
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}
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return false;
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}
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uint16_t
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MAXDS3231M::getTemperature () {
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uint8_t buffer[2];
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uint16_t tempRaw = 0;
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i2cReadReg_N (TEMPERATURE_ADDR, 2, buffer);
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tempRaw = (((int16_t)buffer[0]) << 8) | buffer[1];
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return tempRaw;
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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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uint16_t
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MAXDS3231M::i2cReadReg_N (int reg, unsigned int len, uint8_t * buffer) {
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int readByte = 0;
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if (m_i2Ctx == NULL) {
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throw DS3231Exception ("Couldn't find initilized I2C.");
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}
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mraa_i2c_address(m_i2Ctx, m_i2cAddr);
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mraa_i2c_write_byte(m_i2Ctx, reg);
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mraa_i2c_address(m_i2Ctx, m_i2cAddr);
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readByte = mraa_i2c_read(m_i2Ctx, buffer, len);
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return readByte;
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}
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mraa_result_t
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MAXDS3231M::i2cWriteReg_N (uint8_t reg, unsigned int len, uint8_t * buffer) {
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mraa_result_t error = MRAA_SUCCESS;
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if (m_i2Ctx == NULL) {
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throw DS3231Exception ("Couldn't find initilized I2C.");
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}
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error = mraa_i2c_address (m_i2Ctx, m_i2cAddr);
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error = mraa_i2c_write (m_i2Ctx, buffer, len);
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return error;
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}
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uint8_t
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MAXDS3231M::DECtoBSD(uint8_t data) {
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return ((data / 10 * 16) + (data % 10));
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}
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uint8_t
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MAXDS3231M::BCDtoDEC(uint8_t data) {
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return ((data / 16 * 10) + (data % 16));
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}
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125
src/maxds3231m/maxds3231m.h
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125
src/maxds3231m/maxds3231m.h
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/*
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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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#pragma once
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#include <string>
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#include <mraa/i2c.h>
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#define ADDR 0x68 // device address
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// timekeeping registers
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#define TIME_CAL_ADDR 0x00
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#define ALARM1_ADDR 0x07
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#define ALARM2_ADDR 0x0B
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#define CONTROL_ADDR 0x0E
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#define STATUS_ADDR 0x0F
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#define AGING_OFFSET_ADDR 0x10
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#define TEMPERATURE_ADDR 0x11
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// control register bits
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#define A1IE 0x1
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#define A2IE 0x2
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#define INTCN 0x4
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// status register bits
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#define A1F 0x1
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#define A2F 0x2
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#define OSF 0x80
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#define HIGH 1
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#define LOW 0
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namespace upm {
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struct Time3231 {
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uint8_t second;
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uint8_t minute;
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uint8_t hour;
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uint8_t day;
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uint8_t month;
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int16_t year;
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uint8_t weekDay;
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};
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/**
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* @brief C++ API for MAXDS3231M chip (Ambient and Infrared Proximity Sensor)
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*
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* This file defines the MAXDS3231M C++ interface for libmax44000
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*
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*/
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class MAXDS3231M {
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public:
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/**
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* Instanciates a MAXDS3231M object
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*
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* @param bus number of used bus
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* @param devAddr addres of used i2c device
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*/
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MAXDS3231M (int bus, int devAddr);
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/**
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* MAXDS3231M object destructor, basicaly it close i2c connection.
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*/
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~MAXDS3231M ();
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/**
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* Set date and time on the chip.
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*
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* @param time staracture
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*/
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void setDate (Time3231 &time);
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/**
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* Get date and time located on the chip.
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*
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* @param time staracture
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*/
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bool getDate (Time3231 &time);
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/**
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* Get on board temperature.
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*/
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uint16_t getTemperature ();
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/**
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* Return name of the component
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*/
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std::string name()
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{
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return m_name;
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}
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private:
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std::string m_name;
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int m_i2cAddr;
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int m_bus;
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mraa_i2c_context m_i2Ctx;
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uint16_t i2cReadReg_N (int reg, unsigned int len, uint8_t * buffer);
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mraa_result_t i2cWriteReg_N (uint8_t reg, unsigned int len, uint8_t * buffer);
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uint8_t DECtoBSD (uint8_t data);
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uint8_t BCDtoDEC (uint8_t data);
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};
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}
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9
src/maxds3231m/pyupm_maxds3231m.i
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9
src/maxds3231m/pyupm_maxds3231m.i
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%module pyupm_maxds3231m
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%include "../upm.i"
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%feature("autodoc", "3");
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%include "maxds3231m.h"
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%{
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#include "maxds3231m.h"
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%}
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