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/* Copyright 2022 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 "charge_manager.h"
#include "console.h"
#include "driver/ppc/rt1718s.h"
#include "system.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usbc_ppc.h"
#include "util.h"
#include "baseboard_usbc_config.h"
#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
void pd_power_supply_reset(int port)
{
int prev_en;
prev_en = ppc_is_sourcing_vbus(port);
if (port == USBC_PORT_C1) {
rt1718s_gpio_set_level(port, GPIO_EN_USB_C1_SOURCE, 0);
}
/* Disable VBUS. */
ppc_vbus_source_enable(port, 0);
/* Enable discharge if we were previously sourcing 5V */
if (prev_en) {
pd_set_vbus_discharge(port, 1);
}
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
int pd_set_power_supply_ready(int port)
{
int rv;
/* Disable charging. */
rv = ppc_vbus_sink_enable(port, 0);
if (rv) {
return rv;
}
pd_set_vbus_discharge(port, 0);
/* Provide Vbus. */
if (port == USBC_PORT_C1) {
rt1718s_gpio_set_level(port, GPIO_EN_USB_C1_SOURCE, 1);
}
rv = ppc_vbus_source_enable(port, 1);
if (rv) {
return rv;
}
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
return EC_SUCCESS;
}
int pd_snk_is_vbus_provided(int port)
{
/* TODO: use ADC? */
return tcpm_check_vbus_level(port, VBUS_PRESENT);
}
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