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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.
*
* Battery pack vendor provided charging profile
*/
#include "battery.h"
#include "battery_smart.h"
#include "charge_state.h"
#include "console.h"
#include "driver/battery/max17055.h"
#include "driver/charger/rt946x.h"
#include "ec_commands.h"
#include "extpower.h"
#include "util.h"
static const struct battery_info info = {
.voltage_max = 4350,
.voltage_normal = 3800,
.voltage_min = 3000,
.precharge_current = 700,
.start_charging_min_c = 0,
.start_charging_max_c = 45,
.charging_min_c = 0,
.charging_max_c = 45,
.discharging_min_c = -20,
.discharging_max_c = 55,
};
static const struct max17055_batt_profile batt_profile = {
.is_ez_config = 0,
.design_cap = 0x232f, /* 9007mAh */
.ichg_term = 0x0240, /* 180mA */
/* Empty voltage = 2700mV, Recovery voltage = 3280mV */
.v_empty_detect = 0x8752,
.dpacc = 0x0c7b,
.learn_cfg = 0x4476,
.rcomp0 = 0x0077,
.tempco = 0x1d3f,
.qr_table00 = 0x1200,
.qr_table10 = 0x0900,
.qr_table20 = 0x0480,
.qr_table30 = 0x0480,
};
const struct battery_info *battery_get_info(void)
{
return &info;
}
const struct max17055_batt_profile *max17055_get_batt_profile(void)
{
return &batt_profile;
}
int board_cut_off_battery(void)
{
return rt946x_cutoff_battery();
}
enum battery_disconnect_state battery_get_disconnect_state(void)
{
if (battery_is_present() == BP_YES)
return BATTERY_NOT_DISCONNECTED;
return BATTERY_DISCONNECTED;
}
int charger_profile_override(struct charge_state_data *curr)
{
const struct battery_info *batt_info = battery_get_info();
int now_discharging;
/* battery temp in 0.1 deg C */
int bat_temp_c = curr->batt.temperature - 2731;
if (curr->state == ST_CHARGE) {
/* Don't charge if outside of allowable temperature range */
if (bat_temp_c >= batt_info->charging_max_c * 10 ||
bat_temp_c < batt_info->charging_min_c * 10) {
curr->requested_current = curr->requested_voltage = 0;
curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE;
curr->state = ST_IDLE;
now_discharging = 0;
/* Don't start charging if battery is nearly full */
} else if (curr->batt.status & STATUS_FULLY_CHARGED) {
curr->requested_current = curr->requested_voltage = 0;
curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE;
curr->state = ST_DISCHARGE;
now_discharging = 1;
} else
now_discharging = 0;
charger_discharge_on_ac(now_discharging);
}
return 0;
}
/* Customs options controllable by host command. */
#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0)
enum ec_status charger_profile_override_get_param(uint32_t param,
uint32_t *value)
{
return EC_RES_INVALID_PARAM;
}
enum ec_status charger_profile_override_set_param(uint32_t param,
uint32_t value)
{
return EC_RES_INVALID_PARAM;
}
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