diff options
Diffstat (limited to 'zephyr/program/skyrim/winterhold/src/battery_present.c')
-rw-r--r-- | zephyr/program/skyrim/winterhold/src/battery_present.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/zephyr/program/skyrim/winterhold/src/battery_present.c b/zephyr/program/skyrim/winterhold/src/battery_present.c deleted file mode 100644 index 290955a242..0000000000 --- a/zephyr/program/skyrim/winterhold/src/battery_present.c +++ /dev/null @@ -1,81 +0,0 @@ -/* Copyright 2022 The ChromiumOS Authors - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ -#include "battery.h" -#include "battery_smart.h" -#include "common.h" - -#include <zephyr/drivers/gpio.h> - -static enum battery_present batt_pres_prev = BP_NOT_SURE; - -__overridable bool board_battery_is_initialized(void) -{ - int batt_status; - - return battery_status(&batt_status) != EC_SUCCESS ? - false : - !!(batt_status & STATUS_INITIALIZED); -} - -/* - * Physical detection of battery. - */ -static enum battery_present battery_check_present_status(void) -{ - enum battery_present batt_pres; - - if (battery_is_cut_off()) - return BP_NO; - - /* Get the physical hardware status */ - batt_pres = battery_hw_present(); - - /* - * If the battery is not physically connected, then no need to perform - * any more checks. - */ - if (batt_pres == BP_NO) - return BP_NO; - - /* - * If the battery is present now and was present last time we checked, - * return early. - */ - if ((batt_pres == BP_YES) && (batt_pres == batt_pres_prev)) - return BP_YES; - - /* - * Check battery initialization. If the battery is not initialized, - * then return BP_NOT_SURE. Battery could be in ship - * mode and might require pre-charge current to wake it up. BP_NO is not - * returned here because charger state machine will not provide - * pre-charge current assuming that battery is not present. - */ - if (!board_battery_is_initialized()) - return BP_NOT_SURE; - - return BP_YES; -} - -enum battery_present battery_is_present(void) -{ - batt_pres_prev = battery_check_present_status(); - return batt_pres_prev; -} - -enum battery_present battery_hw_present(void) -{ - const struct gpio_dt_spec *batt_pres; - - batt_pres = GPIO_DT_FROM_NODELABEL(gpio_ec_batt_pres_odl); - - /* - * The GPIO is low when the battery is physically present. - * But if battery cell voltage < 2.5V, it will not able to - * pull down EC_BATT_PRES_ODL. So we need to set pre-charge - * current even EC_BATT_PRES_ODL is high. - */ - return gpio_pin_get_dt(batt_pres) ? BP_NOT_SURE : BP_YES; -} |