meta-facebook/meta-greatlakes/recipes-phosphor/fans/phosphor-pid-control/config.json

{
    "sensors": [
    {
        "name": "BB_INLET_TEMP_C",
        "type": "temp",
        "readPath": "/xyz/openbmc_project/sensors/temperature/BB_INLET_TEMP_C",
        "timeout": 0,
        "ignoreDbusMinMax": true
    },
    {
        "name": "BB_FAN0_TACH_RPM",
        "type": "fan",
        "readPath": "/xyz/openbmc_project/sensors/fan_tach/BB_FAN0_TACH_RPM",
        "writePath": "/xyz/openbmc_project/control/fanpwm/Pwm_1",
        "min": 0,
        "max": 255,
        "ignoreDbusMinMax": true
    },
    {
        "name": "BB_FAN1_TACH_RPM",
        "type": "fan",
        "readPath": "/xyz/openbmc_project/sensors/fan_tach/BB_FAN1_TACH_RPM",
        "writePath": "/xyz/openbmc_project/control/fanpwm/Pwm_2",
        "min": 0,
        "max": 255,
        "ignoreDbusMinMax": true
    },
    {
        "name": "BB_FAN2_TACH_RPM",
        "type": "fan",
        "readPath": "/xyz/openbmc_project/sensors/fan_tach/BB_FAN2_TACH_RPM",
        "writePath": "/xyz/openbmc_project/control/fanpwm/Pwm_3",
        "min": 0,
        "max": 255,
        "ignoreDbusMinMax": true
    },
    {
        "name": "BB_FAN3_TACH_RPM",
        "type": "fan",
        "readPath": "/xyz/openbmc_project/sensors/fan_tach/BB_FAN3_TACH_RPM",
        "writePath": "/xyz/openbmc_project/control/fanpwm/Pwm_4",
        "min": 0,
        "max": 255,
        "ignoreDbusMinMax": true
    }
    ],
    "zones" : [
        {
            "id": 1,
            "failsafePercent": 90.0,
            "minThermalOutput": 0.0,
            "cycleTimeBaseMS": 1000,
            "updateThermalsTimeMS": 1000,
            "pids": [
                {
                    "name": "fan0 1 2 3",
                    "type": "fan",
                    "inputs": [
                        "BB_FAN0_TACH_RPM",
                        "BB_FAN1_TACH_RPM",
                        "BB_FAN2_TACH_RPM",
                        "BB_FAN3_TACH_RPM"
                    ],
                    "setpoint": 0.0,
                    "pid": {
                        "samplePeriod": 1,
                        "proportionalCoeff": 0.0,
                        "integralCoeff": 0.0,
                        "derivativeCoeff": 0.0,
                        "feedFwdOffsetCoeff": 0.0,
                        "feedFwdGainCoeff": 1.0,
                        "integralLimit_min": 0.0,
                        "integralLimit_max": 0.0,
                        "outLim_min": 0.0,
                        "outLim_max": 100.0,
                        "slewNeg": 0.0,
                        "slewPos": 0.0,
                        "positiveHysteresis": 0,
                        "negativeHysteresis": 0
                    }
                },
                {
                    "name": "Stepwise_BB_INLET_TEMP_C",
                    "type": "stepwise",
                    "inputs": [
                        "BB_INLET_TEMP_C"
                    ],
                    "setpoint": 0.0,
                    "pid": {
                        "samplePeriod": 1,
                        "isCeiling": false,
                        "reading": {
                            "0": 20.0
                        },
                        "output": {
                            "0": 70.0
                        },
                        "positiveHysteresis": 0,
                        "negativeHysteresis": 2
                    }
                }
            ]
        }
    ]
}