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# 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_USB_POWER_DELIVERY
choice SVDM_RSP_CHOICE
prompt "SVDM handler implementation"
# Default value is the first listed choice that has satisfied
# dependencies: this defaults to DFP_ONLY if possible.
help
Select how USB-PD Structured Vendor Defined Messages (SVDM) will be
handled.
config SVDM_RSP_DFP_ONLY
bool "DFP-only"
# USB4 and TBT modes require more support
depends on !PLATFORM_EC_USB_PD_USB4
depends on !PLATFORM_EC_USB_PD_TBT_COMPAT_MODE
# DRDs are not DFP-only
depends on !PLATFORM_EC_USB_PD_USB32_DRD
help
Respond to Discover Identity requests only, reporting DFP-only
operation on all ports. The Identity response indicates the device has
Type-C receptacles and supports USB 3.2, operating as a USB-PD host.
This is appropriate for systems that only ever operate as USB hosts
and do not require support for more complex modes like USB4 or TBT.
config SVDM_RSP_CUSTOM
bool "Custom"
help
The application defines SVDM handler functions appropriate to its
feature set by populating fields of the svdm_rsp struct:
__override const struct svdm_response svdm_rsp = { ... };
If any pointer in this struct is NULL, that command is unsupported:
matching SVDM commands that are received will be ignored and a
Not_Supported reply sent if required. If no definition __overrides
the default, all SVDM commands are treated as unsupported.
endchoice
endif # PLATFORM_EC_USB_POWER_DELIVERY
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