diff options
Diffstat (limited to 'board/rammus/battery.c')
| -rw-r--r-- | board/rammus/battery.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/board/rammus/battery.c b/board/rammus/battery.c index 916aac5fd3..d0cc2f13d2 100644 --- a/board/rammus/battery.c +++ b/board/rammus/battery.c @@ -7,11 +7,15 @@ #include "battery.h" #include "battery_smart.h" +#include "charge_manager.h" #include "charge_state.h" +#include "chipset.h" #include "console.h" #include "ec_commands.h" #include "extpower.h" +#include "hooks.h" #include "gpio.h" +#include "usb_pd.h" #include "util.h" static enum battery_present batt_pres_prev = BP_NOT_SURE; @@ -128,3 +132,28 @@ enum battery_present battery_is_present(void) return batt_pres; } +static void reduce_input_voltage_when_full(void) +{ + struct batt_params batt; + int max_pd_voltage_mv; + int active_chg_port; + + active_chg_port = charge_manager_get_active_charge_port(); + if (active_chg_port == CHARGE_PORT_NONE) + return; + + battery_get_params(&batt); + if (!(batt.flags & BATT_FLAG_BAD_STATUS)) { + /* Lower our input voltage to 9V when battery is full. */ + if ((batt.status & STATUS_FULLY_CHARGED) && + chipset_in_state(CHIPSET_STATE_ANY_OFF)) + max_pd_voltage_mv = 9000; + else + max_pd_voltage_mv = PD_MAX_VOLTAGE_MV; + + if (pd_get_max_voltage() != max_pd_voltage_mv) + pd_set_external_voltage_limit(active_chg_port, + max_pd_voltage_mv); + } +} +DECLARE_HOOK(HOOK_SECOND, reduce_input_voltage_when_full, HOOK_PRIO_DEFAULT); |