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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_smart.h"
#include "charge_manager.h"
#include "charger.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/charger/sm5803.h"
#include "driver/tcpm/tcpci.h"
#include "usb_pd.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
int pd_check_vconn_swap(int port)
{
/* Allow VCONN swaps if the AP is on */
return chipset_in_state(CHIPSET_STATE_ANY_SUSPEND | CHIPSET_STATE_ON);
}
void pd_power_supply_reset(int port)
{
int prev_en;
if (port < 0 || port >= CONFIG_USB_PD_PORT_MAX_COUNT)
return;
/* TODO(b/147440290): charger functions should take chgnum */
prev_en = chg_chips[port].drv->is_sourcing_otg_power(port, port);
/* Disable Vbus */
chg_chips[port].drv->enable_otg_power(port, 0);
/* Discharge Vbus if previously enabled */
if (prev_en)
sm5803_set_vbus_disch(port, 1);
#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
/* Give back the current quota we are no longer using */
charge_manager_source_port(port, 0);
#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
int pd_set_power_supply_ready(int port)
{
enum ec_error_list rv;
/* Disable charging */
rv = chg_chips[port].drv->set_mode(port, CHARGE_FLAG_INHIBIT_CHARGE);
if (rv)
return rv;
/* Disable Vbus discharge */
sm5803_set_vbus_disch(port, 0);
/* Provide Vbus */
chg_chips[port].drv->enable_otg_power(port, 1);
#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
/* Ensure we advertise the proper available current quota */
charge_manager_source_port(port, 1);
#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
/* 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)
{
int chg_det = 0;
sm5803_get_chg_det(port, &chg_det);
return chg_det;
}
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