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/* Copyright 2021 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 "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/charger/isl923x_public.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)
{
/* Disable VBUS */
tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SRC_CTRL_LOW);
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
int pd_set_power_supply_ready(int port)
{
int rv;
if (port >= board_get_usb_pd_port_count())
return EC_ERROR_INVAL;
/* Disable charging. */
rv = tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SNK_CTRL_LOW);
if (rv)
return rv;
/* Our policy is not to source VBUS when the AP is off. */
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
return EC_ERROR_NOT_POWERED;
/* Provide Vbus. */
rv = tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SRC_CTRL_HIGH);
if (rv)
return rv;
rv = raa489000_enable_asgate(port, true);
if (rv)
return rv;
/* Notify host of power info change. */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
return EC_SUCCESS;
}
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