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# Copyright 2022 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.
if PLATFORM_EC_USBC
menuconfig PLATFORM_EC_USB_MUX
bool "USB muxes"
default y
help
Enables support for USB muxes. These allow multiplexing
if PLATFORM_EC_USB_MUX
config PLATFORM_EC_USB_MUX_TASK
bool "Run mux set operations in a dedicated thread"
default n
help
Run a dedicated task to process USB mux sets and HPD, which avoids
blocking the PD task on mux updates. This is useful if a mux is slow
to update, since blocking PD handling during mux operations can cause
timing violations.
config TASK_USB_MUX_STACK_SIZE
int "USB mux task stack size"
depends on PLATFORM_EC_USB_MUX_TASK
default 1024
help
Set the size of the USB mux task stack, in bytes.
config PLATFORM_EC_USB_MUX_AMD_FP6
bool "AMD FP6 integrated mux"
help
Integrated AMD FP6 mux for USB and DP. Mux control happens over
an i2c channel.
config PLATFORM_EC_USB_MUX_IT5205
bool "ITE IT5205 USB Type-C 3:2 Alternative mode passive mux"
help
This is a USB Type-C 3:2 Alternative mode mux, supporting USB 3.1
Gen 2 10Gbps as well as DisplayPort (DP1.4) at 8Gbps. It provides a
cross-point mux for low-speed Side-Band-Use (SBU) pins. The mux can
be controlled via I2C.
config PLATFORM_EC_USB_MUX_PS8743
bool "Parade PS8743 USB-C Host Switch with redriver"
help
This is a Parade USB 3.1 Gen 1 / DisplayPort (DP) Alt Mode
High-Bit-Rate 2 (HBR2) redriver. It provides control of switching
modes through either GPIO or I2C.
config PLATFORM_EC_USB_MUX_TUSB1044
bool "TI TUSB1044 USB-C 10 Gbps Linear Redriver"
help
This is a USB Type-C Alt Mode redriver. This supports USB 3.1
Gen 2 and DisplayPort 1.4 as Alternate Mode. It Provides GPIO and
I2C Control for Channel Direction and Equalization.
endif # PLATFORM_EC_USB_MUX
endif # PLATFORM_EC_USBC
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