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/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "battery.h"
#include "button.h"
#include "charge_ramp.h"
#include "charger.h"
#include "common.h"
#include "charge_manager.h"
#include "charge_state_v2.h"
#include "compile_time_macros.h"
#include "console.h"
#include "fw_config.h"
#include "gpio.h"
#include "gpio_signal.h"
#include "hooks.h"
#include "keyboard_8042_sharedlib.h"
#include "lid_switch.h"
#include "power_button.h"
#include "power.h"
#include "pwm.h"
#include "registers.h"
#include "switch.h"
#include "throttle_ap.h"
#include "usbc_config.h"
#include "util.h"
#include "gpio_list.h" /* Must come after other header files. */
/* Console output macros */
#define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ##args)
#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ##args)
#define KBLIGHT_LED_ON_LVL 100
#define KBLIGHT_LED_OFF_LVL 0
#define PD_MAX_SUSPEND_CURRENT_MA 3000
/******************************************************************************/
/* USB-A charging control */
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_EN_PP5000_USBA_R,
};
BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);
/******************************************************************************/
__override void board_cbi_init(void)
{
config_usb_db_type();
}
/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
/* Allow keyboard backlight to be enabled */
pwm_set_duty(PWM_CH_KBLIGHT, KBLIGHT_LED_ON_LVL);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
/* Turn off the keyboard backlight if it's on. */
pwm_set_duty(PWM_CH_KBLIGHT, KBLIGHT_LED_OFF_LVL);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
#ifdef CONFIG_CHARGE_RAMP_SW
/*
* TODO(b/181508008): tune this threshold
*/
#define BC12_MIN_VOLTAGE 4400
/**
* Return true if VBUS is too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
int voltage;
if (charger_get_vbus_voltage(port, &voltage))
voltage = 0;
if (voltage == 0) {
CPRINTS("%s: must be disconnected", __func__);
return 1;
}
if (voltage < BC12_MIN_VOLTAGE) {
CPRINTS("%s: port %d: vbus %d lower than %d", __func__, port,
voltage, BC12_MIN_VOLTAGE);
return 1;
}
return 0;
}
#endif /* CONFIG_CHARGE_RAMP_SW */
enum battery_present battery_hw_present(void)
{
enum gpio_signal batt_pres;
batt_pres = GPIO_EC_BATT_PRES_ODL;
/* The GPIO is low when the battery is physically present */
return gpio_get_level(batt_pres) ? BP_NO : BP_YES;
}
static void keyboard_init(void)
{
/*
* Set T15(KSI0/KSO11) to Lock key(KSI3/KSO9)
*/
set_scancode_set2(0, 11, get_scancode_set2(3, 9));
}
DECLARE_HOOK(HOOK_INIT, keyboard_init, HOOK_PRIO_DEFAULT);
__override void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
/*
* Need to set different input current limit depend on system state.
* Guard adapter plug/ un-plug here.
*/
if (((max_ma == PD_MAX_CURRENT_MA) &&
chipset_in_state(CHIPSET_STATE_ANY_OFF)) ||
(max_ma != PD_MAX_CURRENT_MA))
charge_ma = charge_ma * 97 / 100;
else
charge_ma = charge_ma * 93 / 100;
charge_set_input_current_limit(charge_ma, charge_mv);
}
static void configure_input_current_limit(void)
{
/*
* If adapter == 3250mA, we need system be charged at 3150mA in S5.
* And system be charged at 3000mA in S0.
*/
int adapter_current_ma;
int adapter_current_mv;
/* Get adapter voltage/ current */
adapter_current_mv = charge_manager_get_charger_voltage();
adapter_current_ma = charge_manager_get_charger_current();
if ((adapter_current_ma == PD_MAX_CURRENT_MA) &&
chipset_in_or_transitioning_to_state(CHIPSET_STATE_SUSPEND))
adapter_current_ma = PD_MAX_SUSPEND_CURRENT_MA;
else
adapter_current_ma = adapter_current_ma * 97 / 100;
charge_set_input_current_limit(adapter_current_ma, adapter_current_mv);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, configure_input_current_limit,
HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN_COMPLETE, configure_input_current_limit,
HOOK_PRIO_DEFAULT);
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