diff options
| -rw-r--r-- | board/ampton/battery.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/board/ampton/battery.c b/board/ampton/battery.c index adb88f1f1b..9289792d46 100644 --- a/board/ampton/battery.c +++ b/board/ampton/battery.c @@ -6,8 +6,11 @@ */ #include "battery_fuel_gauge.h" +#include "charge_state.h" +#include "chipset.h" #include "common.h" -#include "util.h" +#include "hooks.h" +#include "usb_pd.h" /* * Battery info for all ampton/apel battery types. Note that the fields @@ -90,3 +93,26 @@ const struct board_batt_params board_battery_info[] = { BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT); const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_C214; + +/* Lower our input voltage to 5V in S5/G3 when battery is full. */ +static void reduce_input_voltage_when_full(void) +{ + int max_pd_voltage_mv; + int port; + + if (charge_get_percent() == 100 && + chipset_in_or_transitioning_to_state(CHIPSET_STATE_ANY_OFF)) + max_pd_voltage_mv = 5000; + else + max_pd_voltage_mv = PD_MAX_VOLTAGE_MV; + if (pd_get_max_voltage() != max_pd_voltage_mv) { + for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) + pd_set_external_voltage_limit(port, max_pd_voltage_mv); + } +} +DECLARE_HOOK(HOOK_BATTERY_SOC_CHANGE, reduce_input_voltage_when_full, + HOOK_PRIO_DEFAULT); +DECLARE_HOOK(HOOK_CHIPSET_STARTUP, reduce_input_voltage_when_full, + HOOK_PRIO_DEFAULT); +DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, reduce_input_voltage_when_full, + HOOK_PRIO_DEFAULT); |