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6f5489e18e
charge_temp_sensor_get_val() is used to get the battery temperature value hence renamed it to charge_get_battery_temp(). BUG=none BRANCH=none TEST=make buildall -j Change-Id: I2b52cac57dcde12a6b7405e7d712240e278954e2 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/397962 Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com> Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com> Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/* Copyright (c) 2014 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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#ifndef __CROS_EC_CHARGE_STATE_H
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#define __CROS_EC_CHARGE_STATE_H
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#include "common.h"
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#include "timer.h"
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/* Stuff that's common to all charger implementations can go here. */
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/* Seconds to spend trying to wake a non-responsive battery */
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#define PRECHARGE_TIMEOUT CONFIG_BATTERY_PRECHARGE_TIMEOUT
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/* Power state task polling periods in usec */
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#define CHARGE_POLL_PERIOD_VERY_LONG MINUTE
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#define CHARGE_POLL_PERIOD_LONG (MSEC * 500)
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#define CHARGE_POLL_PERIOD_CHARGE (MSEC * 250)
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#define CHARGE_POLL_PERIOD_SHORT (MSEC * 100)
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#define CHARGE_MIN_SLEEP_USEC (MSEC * 50)
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#define CHARGE_MAX_SLEEP_USEC SECOND
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/* Power states */
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enum charge_state {
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/* Meta-state; unchanged from previous time through task loop */
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PWR_STATE_UNCHANGE = 0,
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/* Initializing charge state machine at boot */
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PWR_STATE_INIT,
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/* Re-initializing charge state machine */
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PWR_STATE_REINIT,
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/* Just transitioned from init to idle */
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PWR_STATE_IDLE0,
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/* Idle; AC present */
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PWR_STATE_IDLE,
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/* Discharging */
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PWR_STATE_DISCHARGE,
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/* Charging */
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PWR_STATE_CHARGE,
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/* Charging, almost fully charged */
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PWR_STATE_CHARGE_NEAR_FULL,
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/* Charging state machine error */
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PWR_STATE_ERROR
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};
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/* Charge state flags */
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/* Forcing idle state */
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#define CHARGE_FLAG_FORCE_IDLE (1 << 0)
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/* External (AC) power is present */
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#define CHARGE_FLAG_EXTERNAL_POWER (1 << 1)
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/* Battery is responsive */
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#define CHARGE_FLAG_BATT_RESPONSIVE (1 << 2)
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/* Debugging constants, in the same order as enum charge_state. This string
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* table was moved here to sync with enum above.
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*/
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#define CHARGE_STATE_NAME_TABLE { \
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"unchange", \
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"init", \
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"reinit", \
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"idle0", \
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"idle", \
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"discharge", \
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"charge", \
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"charge_near_full", \
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"error" \
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}
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/* End of CHARGE_STATE_NAME_TABLE macro */
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/**
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* Return current charge state.
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*/
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enum charge_state charge_get_state(void);
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/**
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* Return non-zero if battery is so low we want to keep AP off.
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*/
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int charge_keep_power_off(void);
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/**
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* Return current charge state flags (CHARGE_FLAG_*)
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*/
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uint32_t charge_get_flags(void);
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/**
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* Return current battery charge percentage.
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*/
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int charge_get_percent(void);
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/**
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* Return non-zero if discharging and battery so low we should shut down.
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*/
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int charge_want_shutdown(void);
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/**
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* Return non-zero if the battery level is too low to allow power on, even if
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* a charger is attached.
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*
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* @param power_button_pressed True if the power-up attempt is caused by a
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* power button press.
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*/
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int charge_prevent_power_on(int power_button_pressed);
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/**
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* Get the last polled battery/charger temperature.
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*
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* @param idx Sensor index to read.
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* @param temp_ptr Destination for temperature in K.
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*
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* @return EC_SUCCESS if successful, non-zero if error.
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*/
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int charge_get_battery_temp(int idx, int *temp_ptr);
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/**
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* Get the pointer to the battery parameters we saved in charge state.
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*
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* Use this carefully. Other threads can modify data while you are reading.
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*/
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const struct batt_params *charger_current_battery_params(void);
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/* Pick the right implementation */
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#ifdef CONFIG_CHARGER_V1
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#ifdef CONFIG_CHARGER_V2
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#error "Choose either CONFIG_CHARGER_V1 or CONFIG_CHARGER_V2, not both"
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#else
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#include "charge_state_v1.h"
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#endif
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#else /* not V1 */
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#ifdef CONFIG_CHARGER_V2
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#include "charge_state_v2.h"
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#endif
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#endif /* CONFIG_CHARGER_V1 */
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#endif /* __CROS_EC_CHARGE_STATE_H */
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