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/* Copyright 2020 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.
*/
#include "battery.h"
#include "battery_fuel_gauge.h"
#include "battery_smart.h"
#include "charge_manager.h"
#include "chipset.h"
#include "gpio.h"
#include "hooks.h"
#include "usb_pd.h"
const struct board_batt_params board_battery_info[] = {
[BATTERY_C235] = {
.fuel_gauge = {
.manuf_name = "AS3GWRc3KA",
.device_name = "C235-41",
.ship_mode = {
.reg_addr = 0x0,
.reg_data = { 0x10, 0x10 },
},
.fet = {
.reg_addr = 0x99,
.reg_mask = 0x0c,
.disconnect_val = 0x0c,
}
},
.batt_info = {
.voltage_max = 8800,
.voltage_normal = 7700,
.voltage_min = 6000,
.precharge_current = 256,
.start_charging_min_c = 0,
.start_charging_max_c = 45,
.charging_min_c = 0,
.charging_max_c = 60,
.discharging_min_c = 0,
.discharging_max_c = 60,
},
},
};
BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_C235;
static void reduce_input_voltage_when_full(void)
{
struct batt_params batt;
int max_pd_voltage_mv;
int active_chg_port;
active_chg_port = charge_manager_get_active_charge_port();
if (active_chg_port == CHARGE_PORT_NONE)
return;
battery_get_params(&batt);
/* Lower our input voltage to 9V when battery is full. */
if (!(batt.flags & BATT_FLAG_BAD_STATUS) &&
(batt.status & STATUS_FULLY_CHARGED) &&
chipset_in_state(CHIPSET_STATE_ANY_OFF))
max_pd_voltage_mv = 9000;
else
max_pd_voltage_mv = PD_MAX_VOLTAGE_MV;
if (pd_get_max_voltage() != max_pd_voltage_mv)
pd_set_external_voltage_limit(active_chg_port,
max_pd_voltage_mv);
}
DECLARE_HOOK(HOOK_SECOND, reduce_input_voltage_when_full, HOOK_PRIO_DEFAULT);
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