diff options
Diffstat (limited to 'baseboard/volteer/battery_presence.c')
-rw-r--r-- | baseboard/volteer/battery_presence.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/baseboard/volteer/battery_presence.c b/baseboard/volteer/battery_presence.c deleted file mode 100644 index 4953d7a49e..0000000000 --- a/baseboard/volteer/battery_presence.c +++ /dev/null @@ -1,89 +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. - * - * Common battery presence checking for Volteer family. - * Each board should implement board_battery_info[] to define the specific - * battery packs supported. - */ -#include <stdbool.h> - -#include "battery.h" -#include "battery_smart.h" -#include "gpio.h" - -static enum battery_present batt_pres_prev = BP_NOT_SURE; - -enum battery_present battery_hw_present(void) -{ - /* The GPIO is low when the battery is physically present */ - return gpio_get_level(GPIO_EC_BATT_PRES_ODL) ? BP_NO : BP_YES; -} - -static bool battery_init(void) -{ - int batt_status; - - return battery_status(&batt_status) ? 0 : - !!(batt_status & STATUS_INITIALIZED); -} - -__overridable bool board_battery_is_initialized(void) -{ - /* - * Set default to return true - */ - return true; -} - -/* - * Physical detection of battery. - */ -static enum battery_present battery_check_present_status(void) -{ - enum battery_present batt_pres; - bool batt_initialization_state; - - /* 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_YES) - 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 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. - */ - batt_initialization_state = board_battery_is_initialized(); - if (!batt_initialization_state) - return BP_NOT_SURE; - /* - * Ensure that battery is: - * 1. Not in cutoff - * 2. Initialized - */ - if (battery_is_cut_off() || !battery_init()) - batt_pres = BP_NO; - - return batt_pres; -} - -enum battery_present battery_is_present(void) -{ - batt_pres_prev = battery_check_present_status(); - return batt_pres_prev; -} |