3  * Copyright (c)  2018-present Facebook.
9  *      http://www.apache.org/licenses/LICENSE-2.0
21 #include <phosphor-logging/log.hpp>
30 static constexpr int16_t minInt10 = -0x200;
32 static constexpr int8_t minInt4 = -8;
49     current = 0x3,  enumerator
62 using SensorSubTree = boost::container::flat_map<
64     boost::container::flat_map<std::string, std::vector<std::string>>,
75             phosphor::logging::entry("ERRNO=0x%X", -ret));  in getSensorSubtree()
114 const static boost::container::flat_map<const char*, SensorUnits, CmpStr>
117                  {"current", SensorUnits::amps},
121 const static boost::container::flat_map<const char*, SensorTypeCodes, CmpStr>
124                  {"current", SensorTypeCodes::current},
138     size_t typeStart = path.rfind("/", typeEnd - 1);  in getSensorTypeStringFromPath()
145     return path.substr(typeStart, typeEnd - typeStart);  in getSensorTypeStringFromPath()
155         sensorType = static_cast<uint8_t>(findSensor->second);  in getSensorTypeFromPath()
168     const double max, const double min, int16_t& mValue, int8_t& rExp,  in getSensorAttributes()  argument
175     if (max <= min)  in getSensorAttributes()
178             "getSensorAttributes: Max must be greater than min");  in getSensorAttributes()
182     mDouble = (max - min) / 0xFF;  in getSensorAttributes()
187         bDouble = floor(0.5 + ((max + min) / 2));  in getSensorAttributes()
203                 "rExp Too big, Max and Min range too far",  in getSensorAttributes()
212     while (((mDouble - floor(mDouble)) / mDouble) > (1.0 / 255))  in getSensorAttributes()
217                 "rExp Too Small, Max and Min range too close");  in getSensorAttributes()
222         if (bDouble / std::pow(10, rExp + minInt4 - 1) > bDouble)  in getSensorAttributes()
233         // can't multiply M any more, max precision reached  in getSensorAttributes()
239         rExp--;  in getSensorAttributes()
251                 "bExp Too Big, Max and Min range need to be adjusted");  in getSensorAttributes()
258     while (((fabs(bDouble) - floor(fabs(bDouble))) / fabs(bDouble)) >  in getSensorAttributes()
264                 "bExp Too Small, Max and Min range need to be adjusted");  in getSensorAttributes()
268         bExp -= 1;  in getSensorAttributes()
282         (value - (bValue * std::pow(10, bExp) * std::pow(10, rExp))) /  in scaleIPMIValueFromDouble()
285     if (scaledValue > std::numeric_limits<uint8_t>::max() ||  in scaleIPMIValueFromDouble()
300 static inline uint8_t getScaledIPMIValue(const double value, const double max,  in getScaledIPMIValue()  argument
310     result = getSensorAttributes(max, min, mValue, rExp, bValue, bExp, bSigned);  in getScaledIPMIValue()