tree 636d08605e98ed44bb8beff0295846400073cee7
parent 934b28fbdc86b318dfdcd0043172b8ffdb6a8f41
author Allen.Wang <Allen_Wang@quantatw.com> 1645431166 +0800
committer Patrick Williams <patrick@stwcx.xyz> 1645732026 +0000

meta-bletchley: phosphor-virtual-sensor: add virtual HSC_Input_Power

- Virtual_P12V_AUX_HSC_Input_Power
Apply calibration equation to adjust HSC Input Power

HSC sensor reading have error with the measurement from pin directly,
those errors are different to each actually power measurement,
use linear interpolation to estimate error in each range of HSC POWER reading.

"Expression":"
var PWR[9]:={71.786,130.828,193.845,255.12,315.468,374.183,427.233,486.983,545.588};
var ERR[9]:={0.1002,0.04141,0.04927,0.05102,0.05308,0.05359,0.04437,0.05245,0.06011};
switch {
    case HSC_PWR<PWR[0]:HSC_PWR/(1+ERR[0]);
    case inrange(PWR[0],HSC_PWR,PWR[1]) : HSC_PWR/(1+ERR[0]+(HSC_PWR-PWR[0])*(ERR[1]-ERR[0])/(PWR[1]-PWR[0]));
    case inrange(PWR[1],HSC_PWR,PWR[2]) : HSC_PWR/(1+ERR[1]+(HSC_PWR-PWR[1])*(ERR[2]-ERR[1])/(PWR[2]-PWR[1]));
    case inrange(PWR[2],HSC_PWR,PWR[3]) : HSC_PWR/(1+ERR[2]+(HSC_PWR-PWR[2])*(ERR[3]-ERR[2])/(PWR[3]-PWR[2]));
    case inrange(PWR[3],HSC_PWR,PWR[4]) : HSC_PWR/(1+ERR[3]+(HSC_PWR-PWR[3])*(ERR[4]-ERR[3])/(PWR[4]-PWR[3]));
    case inrange(PWR[4],HSC_PWR,PWR[5]) : HSC_PWR/(1+ERR[4]+(HSC_PWR-PWR[4])*(ERR[5]-ERR[4])/(PWR[5]-PWR[4]));
    case inrange(PWR[5],HSC_PWR,PWR[6]) : HSC_PWR/(1+ERR[5]+(HSC_PWR-PWR[5])*(ERR[6]-ERR[5])/(PWR[6]-PWR[5]));
    case inrange(PWR[6],HSC_PWR,PWR[7]) : HSC_PWR/(1+ERR[6]+(HSC_PWR-PWR[6])*(ERR[7]-ERR[6])/(PWR[7]-PWR[6]));
    case inrange(PWR[7],HSC_PWR,PWR[8]) : HSC_PWR/(1+ERR[7]+(HSC_PWR-PWR[7])*(ERR[8]-ERR[7])/(PWR[8]-PWR[7]));
    default : HSC_PWR/(1+ERR[8]);
}
"

Signed-off-by: Allen.Wang <Allen_Wang@quantatw.com>
Change-Id: I553380e27eff35fef8020de8fe346e055d75a2f8