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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 "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
readout represents 3.00V and that the battery ADC channel is fed with
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] =
{
/* TODO: this is just an initial guess */
3400
3350
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
/* TODO: this is just an initial guess */
3300
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
/* TODO: simple uncalibrated curve, linear except for first 10% */
{ 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 }
/* Calibrated curve */
{ 3300, 3468, 3521, 3562, 3609, 3644, 3691, 3767, 3837, 3919, 4100 }
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
/* TODO: simple uncalibrated curve, linear except for first 10% */
{ 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 };
/* TODO: simple copy of discharge curve */
{ 3300, 3468, 3521, 3562, 3609, 3644, 3691, 3767, 3837, 3919, 4100 }
/* full-scale ADC readout (2^10) in millivolt */
#define BATTERY_SCALE_FACTOR 6000