diff options
Diffstat (limited to 'driver/battery/smart.c')
| -rw-r--r-- | driver/battery/smart.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/driver/battery/smart.c b/driver/battery/smart.c index bbbec8f21e..743ebc1ee1 100644 --- a/driver/battery/smart.c +++ b/driver/battery/smart.c @@ -283,6 +283,30 @@ test_mockable int battery_device_chemistry(char *dest, int size) return sb_read_string(SB_DEVICE_CHEMISTRY, dest, size); } +#ifdef CONFIG_CMD_PWR_AVG +int battery_get_avg_current(void) +{ + int current; + + /* This is a signed 16-bit value. */ + sb_read(SB_AVERAGE_CURRENT, ¤t); + return (int16_t)current; +} + +/* + * Technically returns only the instantaneous reading, but tests showed that + * for the majority of charge states above 3% this varies by less than 40mV + * every minute, so we accept the inaccuracy here. + */ +int battery_get_avg_voltage(void) +{ + int voltage = -EC_ERROR_UNKNOWN; + + sb_read(SB_VOLTAGE, &voltage); + return voltage; +} +#endif /* CONFIG_CMD_PWR_AVG */ + void battery_get_params(struct batt_params *batt) { struct batt_params batt_new = {0}; |