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hm60x: Calibrated discharge curve.

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Change-Id: I1f2ba69d37931d9ac62479c0e68f8ba251d30819
This commit is contained in:
Andrew Ryabinin 2012-04-30 22:09:45 +04:00
parent a3e3791342
commit 58dd21daea
1 changed files with 7 additions and 8 deletions
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15
firmware/target/arm/rk27xx/hm60x/powermgmt-hm60x.c
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@ -24,37 +24,36 @@
#include "adc-target.h" #include "adc-target.h"
#include "powermgmt.h" #include "powermgmt.h"
/* Battery voltage calculation and discharge/charge curves for the Meizu M3. /* Battery voltage calculation and discharge/charge curves for the HiFiMAN HM-60x.
Battery voltage is calculated under the assumption that the adc full-scale Battery voltage is calculated under the assumption that the adc full-scale
readout represents 3.00V and that the battery ADC channel is fed with readout represents 3.00V and that the battery ADC channel is fed with
exactly half of the battery voltage (through a resistive divider). exactly half of the battery voltage (through a resistive divider).
Discharge and charge curves have not been calibrated yet. Charge curve have not been calibrated yet.
*/ */
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] = const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{ {
/* TODO: this is just an initial guess */ /* TODO: this is just an initial guess */
3400 3350
}; };
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] = const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{ {
/* TODO: this is just an initial guess */
3300 3300
}; };
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */ /* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] = const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{ {
/* TODO: simple uncalibrated curve, linear except for first 10% */ /* Calibrated curve */
{ 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 } { 3300, 3468, 3521, 3562, 3609, 3644, 3691, 3767, 3837, 3919, 4100 }
}; };
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */ /* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] = const unsigned short percent_to_volt_charge[11] =
/* TODO: simple uncalibrated curve, linear except for first 10% */ /* TODO: simple copy of discharge curve */
{ 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 }; { 3300, 3468, 3521, 3562, 3609, 3644, 3691, 3767, 3837, 3919, 4100 }
/* full-scale ADC readout (2^10) in millivolt */ /* full-scale ADC readout (2^10) in millivolt */
#define BATTERY_SCALE_FACTOR 6000 #define BATTERY_SCALE_FACTOR 6000