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6c280b1b32
This change moves vendor specific temperature ranges to battery pack files or board setup files. And added a host test case to verify that does not change x86 smart battery charging state machine behavior. BUG=chrome-os-partner:21181 BRANCH=None TEST=manual build test: util/ecmakeall.sh hosttests: make hosttests && make runtests Change-Id: I48e76826b5555f64b78e3c063ce5f02416c72aa2 Signed-off-by: Rong Chang <rongchang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/62978 Reviewed-by: Vic Yang <victoryang@chromium.org>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Common API for battery pack vendor provided charging profile
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*/
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#ifndef __CROS_EC_BATTERY_PACK_H
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#define __CROS_EC_BATTERY_PACK_H
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#include "common.h"
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#define CELSIUS_TO_DECI_KELVIN(temp_c) ((temp_c) * 10 + 2731)
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#define DECI_KELVIN_TO_CELSIUS(temp_dk) ((temp_dk - 2731) / 10)
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/* Battery parameters */
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struct batt_params {
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int temperature; /* Temperature in 0.1 K */
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int state_of_charge; /* State of charge (percent, 0-100) */
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int voltage; /* Battery voltage (mV) */
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int current; /* Battery current (mA) */
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int desired_voltage; /* Charging voltage desired by battery (mV) */
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int desired_current; /* Charging current desired by battery (mA) */
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};
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/* Working temperature ranges in degrees C */
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struct battery_temperature_ranges {
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int8_t start_charging_min_c;
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int8_t start_charging_max_c;
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int8_t charging_min_c;
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int8_t charging_max_c;
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int8_t discharging_min_c;
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int8_t discharging_max_c;
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};
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extern const struct battery_temperature_ranges bat_temp_ranges;
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/* Battery constants */
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struct battery_info {
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/* Design voltage in mV */
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int voltage_max;
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int voltage_normal;
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int voltage_min;
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/* Pre-charge current in mA */
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int precharge_current;
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};
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/**
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* Return vendor-provided battery constants.
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*/
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const struct battery_info *battery_get_info(void);
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/**
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* Modify battery parameters to match vendor charging profile.
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*
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* @param batt Battery parameters to modify
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*/
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void battery_vendor_params(struct batt_params *batt);
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#ifdef CONFIG_BATTERY_CHECK_CONNECTED
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/**
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* Attempt communication with the battery.
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*
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* @return non-zero if the battery responds.
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*/
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int battery_is_connected(void);
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#endif /* CONFIG_BATTERY_CHECK_CONNECTED */
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#endif /* __CROS_EC_BATTERY_PACK_H */
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