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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.
*/
/* Volteer family-specific USB-C configuration */
#include "common.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state.h"
#include "gpio.h"
#include "task.h"
#ifdef CONFIG_ZEPHYR
#include "usbc_config.h"
#include "baseboard_usbc_config.h"
#endif
#include "usbc_ppc.h"
#include "usb_pd.h"
#include "usb_charge.h"
#include "util.h"
#include "driver/charger/isl9241_public.h"
/******************************************************************************/
void tcpc_alert_event(enum gpio_signal signal)
{
/* TODO: b/140572591 - check correct operation for Volteer */
int port = -1;
switch (signal) {
case GPIO_USB_C0_TCPC_INT_ODL:
port = USBC_PORT_C0;
break;
case GPIO_USB_C1_TCPC_INT_ODL:
port = USBC_PORT_C1;
break;
default:
return;
}
schedule_deferred_pd_interrupt(port);
}
void bc12_interrupt(enum gpio_signal signal)
{
switch (signal) {
case GPIO_USB_C0_BC12_INT_ODL:
usb_charger_task_set_event(0, USB_CHG_EVENT_BC12);
break;
case GPIO_USB_C1_BC12_INT_ODL:
usb_charger_task_set_event(1, USB_CHG_EVENT_BC12);
break;
default:
break;
}
}
/**
* Return 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;
/*
* For legacy BC1.2 charging with CONFIG_CHARGE_RAMP_SW, ramp up input
* current until voltage drops to the minimum input voltage of the
* charger, 4.096V.
*/
return voltage < ISL9241_BC12_MIN_VOLTAGE;
}
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