diff options
Diffstat (limited to 'baseboard/kukui/battery_smart.c')
| -rw-r--r-- | baseboard/kukui/battery_smart.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/baseboard/kukui/battery_smart.c b/baseboard/kukui/battery_smart.c deleted file mode 100644 index ba2af17443..0000000000 --- a/baseboard/kukui/battery_smart.c +++ /dev/null @@ -1,138 +0,0 @@ -/* Copyright 2019 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - * - * Battery pack vendor provided charging profile - */ - -#include "battery.h" -#include "battery_fuel_gauge.h" -#include "battery_smart.h" -#include "timer.h" -#include "util.h" - -enum battery_present batt_pres_prev = BP_NOT_SURE; - -/* - * Physical detection of battery. - */ -static enum battery_present battery_check_present_status(void) -{ - enum battery_present batt_pres = BP_NOT_SURE; - -#ifdef CONFIG_BATTERY_HW_PRESENT_CUSTOM - /* Get the physical hardware status */ - batt_pres = battery_hw_present(); -#endif - - /* - * If the battery is not physically connected, then no need to perform - * any more checks. - */ - if (batt_pres == BP_NO) - return batt_pres; - - /* - * If the battery is present now and was present last time we checked, - * return early. - */ - if (batt_pres == batt_pres_prev) - return batt_pres; - - /* - * Check battery disconnect status. If we are unable to read battery - * disconnect status, 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 (battery_get_disconnect_state() == BATTERY_DISCONNECT_ERROR) - return BP_NOT_SURE; - - /* Ensure the battery is not in cutoff state */ - if (battery_is_cut_off() != BATTERY_CUTOFF_STATE_NORMAL) - return BP_NO; - - return batt_pres; -} - -enum battery_present battery_is_present(void) -{ - batt_pres_prev = battery_check_present_status(); - return batt_pres_prev; -} - -#ifdef CONFIG_I2C_BITBANG -static void fix_single_param(int flag, int *cached, int *curr) -{ - if (flag) - *curr = *cached; - else - *cached = *curr; -} - -#define CACHE_INVALIDATION_TIME_US (5 * SECOND) - -/* - * b:144195782: bitbang fails randomly, and there's no way to - * notify kernel side that bitbang read failed. - * Thus, if any value in batt_params is bad, replace it with a cached - * good value, to make sure we never send random numbers to kernel - * side. - */ -__override void board_battery_compensate_params(struct batt_params *batt) -{ - static struct batt_params batt_cache = { 0 }; - static timestamp_t deadline; - - /* - * If battery keeps failing for 5 seconds, stop hiding the error and - * report back to host. - */ - if (batt->flags & BATT_FLAG_BAD_ANY) { - if (timestamp_expired(deadline, NULL)) - return; - } else { - deadline.val = get_time().val + CACHE_INVALIDATION_TIME_US; - } - - /* return cached values for at most CACHE_INVALIDATION_TIME_US */ - fix_single_param(batt->flags & BATT_FLAG_BAD_STATE_OF_CHARGE, - &batt_cache.state_of_charge, - &batt->state_of_charge); - fix_single_param(batt->flags & BATT_FLAG_BAD_VOLTAGE, - &batt_cache.voltage, - &batt->voltage); - fix_single_param(batt->flags & BATT_FLAG_BAD_CURRENT, - &batt_cache.current, - &batt->current); - fix_single_param(batt->flags & BATT_FLAG_BAD_DESIRED_VOLTAGE, - &batt_cache.desired_voltage, - &batt->desired_voltage); - fix_single_param(batt->flags & BATT_FLAG_BAD_DESIRED_CURRENT, - &batt_cache.desired_current, - &batt->desired_current); - fix_single_param(batt->flags & BATT_FLAG_BAD_REMAINING_CAPACITY, - &batt_cache.remaining_capacity, - &batt->remaining_capacity); - fix_single_param(batt->flags & BATT_FLAG_BAD_FULL_CAPACITY, - &batt_cache.full_capacity, - &batt->full_capacity); - fix_single_param(batt->flags & BATT_FLAG_BAD_STATUS, - &batt_cache.status, - &batt->status); - fix_single_param(batt->flags & BATT_FLAG_BAD_TEMPERATURE, - &batt_cache.temperature, - &batt->temperature); - /* - * If battery_compensate_params() didn't calculate display_charge - * for us, also update it with last good value. - */ - fix_single_param(batt->display_charge == 0, - &batt_cache.display_charge, - &batt->display_charge); - - /* remove bad flags after applying cached values */ - batt->flags &= ~BATT_FLAG_BAD_ANY; -} -#endif /* CONFIG_I2C_BITBANG */ |