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/* Copyright 2016 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.
*
* Charger profile override for fast charging
*/
#ifndef __CROS_EC_CHARGER_PROFILE_OVERRIDE_H
#define __CROS_EC_CHARGER_PROFILE_OVERRIDE_H
#include "charge_state_v2.h"
#define TEMPC_TENTHS_OF_DEG(c) ((c) * 10)
#define CHARGER_PROF_TEMP_C_LAST_RANGE 0xFFFF
#define CHARGER_PROF_VOLTAGE_MV_LAST_RANGE 0xFFFF
/* Charge profile override info */
struct fast_charge_profile {
/* temperature in 10ths of a degree C */
const int temp_c;
/* charge current for respective battery voltage ranges in mA. */
const int current_mA[CONFIG_CHARGER_PROFILE_VOLTAGE_RANGES];
};
/* Charge profile override parameters */
struct fast_charge_params {
/* Total temperature ranges of the charge profile */
const int total_temp_ranges;
/* Default temperature range of the charge profile */
const int default_temp_range_profile;
/*
* Battery voltage ranges in mV.
* It is assumed that these values are added in ascending order in the
* board battery file.
*/
const int voltage_mV[CONFIG_CHARGER_PROFILE_VOLTAGE_RANGES];
const struct fast_charge_profile *chg_profile_info;
};
/**
* Optional customization of charger profile override for fast charging.
*
* On input, the struct reflects the default behavior. The function can make
* changes to the state, requested_voltage, or requested_current.
*
* @param curr Charge state machine data.
*
* @return
* >0 Desired time in usec for this poll period.
* 0 Use the default poll period (which varies with the state).
* <0 An error occurred. The poll time will be shorter than usual.
* Too many errors in a row may trigger some corrective action.
*/
int charger_profile_override(struct charge_state_data *curr);
/**
* Common code of charger profile override for fast charging.
*
* @param curr Charge state machine data.
* @param fast_chg_params Fast charge profile parameters.
* @param prev_chg_prof_info Previous charge profile info.
* @param batt_vtg_max Maximum battery voltage.
*
* @return
* >0 Desired time in usec for this poll period.
* 0 Use the default poll period (which varies with the state).
* <0 An error occurred. The poll time will be shorter than usual.
* Too many errors in a row may trigger some corrective action.
*/
int charger_profile_override_common(struct charge_state_data *curr,
const struct fast_charge_params *fast_chg_params,
const struct fast_charge_profile **prev_chg_prof_info,
int batt_vtg_max);
/*
* Access to custom profile params through host commands.
* What this does is up to the implementation.
*/
enum ec_status charger_profile_override_get_param(uint32_t param,
uint32_t *value);
enum ec_status charger_profile_override_set_param(uint32_t param,
uint32_t value);
#endif /* __CROS_EC_CHARGER_PROFILE_OVERRIDE_H */
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