1 /*
2 * SPDX-FileCopyrightText: Copyright (c) 2022-2025 NVIDIA CORPORATION &
3 * AFFILIATES. All rights reserved.
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #pragma once
8 #include "Thresholds.hpp"
9
10 #include <boost/asio/io_context.hpp>
11 #include <boost/asio/random_access_file.hpp>
12 #include <boost/asio/steady_timer.hpp>
13 #include <sdbusplus/asio/connection.hpp>
14 #include <sdbusplus/asio/object_server.hpp>
15 #include <sensor.hpp>
16
17 #include <array>
18 #include <cstddef>
19 #include <cstdint>
20 #include <memory>
21 #include <string>
22 #include <vector>
23
24 constexpr std::array<size_t, 3> i2CReadLenValues = {4, 8, 8};
25
26 enum class I2C_READ_LEN_INDEX
27 {
28 FLOAT32,
29 FLOAT64,
30 UINT64
31 };
32
33 struct SmbpbiSensor : public Sensor
34 {
35 SmbpbiSensor(
36 std::shared_ptr<sdbusplus::asio::connection>& conn,
37 boost::asio::io_context& io, const std::string& name,
38 const std::string& sensorConfiguration, const std::string& objType,
39 sdbusplus::asio::object_server& objectServer,
40 std::vector<thresholds::Threshold>&& thresholdData, uint8_t busId,
41 uint8_t addr, uint16_t offset, std::string& sensorUnits,
42 std::string& valueType, size_t pollTime, double minVal, double maxVal,
43 std::string& path);
44 ~SmbpbiSensor() override;
45
46 void checkThresholds() override;
47
getPollRateSmbpbiSensor48 size_t getPollRate() const
49 {
50 return pollRateSecond;
51 }
52 void read();
53 void init();
54
55 uint8_t busId;
56 uint8_t addr;
57 uint16_t offset;
58 std::string sensorUnits;
59 std::string sensorType;
60 std::string valueType;
61
62 private:
63 int i2cReadDataBytes(uint8_t* reading, int length);
64 int i2cReadDataBytesDouble(double& reading);
65 int i2cReadDataBytesUI64(uint64_t& reading);
66 int readRawEEPROMData(double& data);
67 int readFloat64EEPROMData(double& data);
68 static double convert2Temp(const uint8_t* rawData);
69 static double convert2Power(const uint8_t* rawData);
70 void waitReadCallback(const boost::system::error_code& ec);
71 sdbusplus::asio::object_server& objectServer;
72 boost::asio::random_access_file inputDev;
73 boost::asio::steady_timer waitTimer;
74 size_t pollRateSecond;
75 };
76
checkInvalidReading(uint8_t * reading,int length)77 bool checkInvalidReading(uint8_t* reading, int length)
78 {
79 // there is no value updated from HMC if reading data is all 0xff
80 uint8_t* ptr = reading;
81 for (int i = 0; i < length; i++, ptr++)
82 {
83 if (*ptr != 0xFF)
84 {
85 return false;
86 }
87 }
88 return true;
89 }
90