/* Copyright 2019 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.
 */
#ifndef __CROS_EC_USB_COMMON_H
#define __CROS_EC_USB_COMMON_H

/* Functions that are shared between old and new PD stacks */
#include "usb_pd.h"
#include "usb_pd_tcpm.h"

/* Returns the battery percentage [0-100] of the system. */
int usb_get_battery_soc(void);

/*
 * Returns type C current limit (mA), potentially with the DTS flag, based upon
 * states of the CC lines on the partner side.
 *
 * @param polarity 0 if cc1 is primary, otherwise 1
 * @param cc1 value of CC1 set by tcpm_get_cc
 * @param cc2 value of CC2 set by tcpm_get_cc
 * @return current limit (mA) with DTS flag set if appropriate
 */
typec_current_t usb_get_typec_current_limit(enum pd_cc_polarity_type polarity,
	enum tcpc_cc_voltage_status cc1, enum tcpc_cc_voltage_status cc2);

/**
 * Returns the polarity of a Sink.
 *
 * @param cc1 value of CC1 set by tcpm_get_cc
 * @param cc2 value of CC2 set by tcpm_get_cc
 * @return 0 if cc1 is primary, else 1 for cc2 being primary
 */
enum pd_cc_polarity_type get_snk_polarity(enum tcpc_cc_voltage_status cc1,
	enum tcpc_cc_voltage_status cc2);

#endif /* __CROS_EC_USB_COMMON_H */