# Copyright 2022 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

if PLATFORM_EC_USBC
if PLATFORM_EC_USB_POWER_DELIVERY

config PLATFORM_EC_USB_PD_FRS
	bool "Support Fast Role Swap protocol"
	help
	  Enables the protocol side of Fast Role Swap (FRS). This allows the
	  device to switch from a SNK to a SRC (or vice versa) based on
	  communication with the partner device.

	  For this to work the trigger must be implemented in either the
	  Type-C Port Controller (TCPC) or Power Path Controller (PPC).

	  FRS differs from the traditional power-role swap in that FRS
	  guarantees there is no interruption of power nor disruption of data
	  communication to any downstream devices (such as devices connected
	  to a USB-C hub or dock).

if PLATFORM_EC_USB_PD_FRS

choice PLATFORM_EC_USB_PD_FRS_MODE
	prompt "Select where the trigger is implemented"
	help
	  The Fast Role Swap (protocol requires that a trigger be implemented to
	  initiate the swap. Use this option to select which of the available
	  options should be used.

config PLATFORM_EC_USB_PD_FRS_PPC
	bool "PPC"
	depends on PLATFORM_EC_USBC_PPC
	help
	  Enable this if the Fast Role Swap trigger is implemented in the
	  Power Path Controller (PPC).

config PLATFORM_EC_USB_PD_FRS_TCPC
	bool "TCPC"
	help
	  Enable this if the Fast Role Swap trigger is implemented in the
	  Type-C Port Controller (TCPC).

endchoice # PLATFORM_EC_USB_PD_FRS_MODE

endif # PLATFORM_EC_USB_PD_FRS

endif # PLATFORM_EC_USB_POWER_DELIVERY
endif # PLATFORM_EC_USBC