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# Copyright 2020 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.
menuconfig PLATFORM_EC_USBC
bool "USB Type-C"
default y if PLATFORM_EC_BATTERY
depends on PLATFORM_EC_MATH_UTIL
help
Enable this to support various USB Type-C features chosen by the
options below. USB-C is widely used on modern Chromebooks and the EC's
role is to negotiate power contracts (for sourcing or sinking power
over USB). The EC is also responsible for discovering the capabilities
of attached USB-C partners and enabling alternate operational modes,
including Display Port, Thunderbolt, and USB4.
rsource "Kconfig.retimer"
rsource "Kconfig.pd_int_shared"
rsource "Kconfig.pd_meas_vbus"
rsource "Kconfig.pd_frs"
rsource "Kconfig.pd_discharge"
rsource "Kconfig.pd_vbus_detection"
rsource "Kconfig.pd_console_cmd"
rsource "Kconfig.pd_usbc_device_type"
rsource "Kconfig.pd"
rsource "Kconfig.ppc"
rsource "Kconfig.usb_mux"
rsource "Kconfig.usbc_ss_mux"
rsource "Kconfig.tcpm"
rsource "Kconfig.usb_charger"
if PLATFORM_EC_USBC
config PLATFORM_EC_CHARGER_INPUT_CURRENT
int "Charger input current in mA"
depends on PLATFORM_EC_CHARGE_MANAGER
default 512
help
This is the default input current for the board in mA. Many boards
also use this as the least maximum input current during transients.
This value should depend on external power adapter, designed charging
voltage, and the maximum power of the running system. For type-C
chargers, this should be set to 512 mA in order to not brown-out
low-current USB charge ports in accordance with USB-PD r3.0 Sec. 7.3
config PLATFORM_EC_USBC_OCP
bool
help
USB-C overcurrent protection: Enable this to detect when a connected
USB-C partner draws too much power from the Chromebook and
automatically shut off power to the USB-C partner.
This should be enabled by drivers which can detect over-current. It
cannot be set otherwise, even in prj.conf
config PLATFORM_EC_USB_PID
hex "USB Product ID"
help
Each platform (e.g. baseboard set) should have a single VID/PID
combination. If there is a big enough change within a platform,
then we can differentiate USB topologies by varying the hardware
version field in the Sink and Source Capabilities Extended messages.
To reserve a new PID within Google, use go/usb and see
http://google3/hardware/standards/usb
config PLATFORM_EC_USB_BCD_DEV
hex "USB Device ID"
default 0
help
This specifies the USB device version, reported by board when acting
as the upstream facing port (UFP). This is a 16-bit unsigned integer
and should be set to a version number relevant to the release version
of the product.
config PLATFORM_EC_USB_VID
hex "USB Vendor ID"
default 0x18d1
help
This specifies the USB vendor ID used for boards which expose a
USB endpont when the port is in UFP mode. The default value is
set to Google's assigned VID and typically would not need to be
changed. But, in certain cases this may need to be changed to
match an OEM's vendor ID.
config PLATFORM_EC_USB_MS_EXTENDED_COMPAT_ID_DESCRIPTOR
bool "USB MS Extended Compat ID Feature Descriptor"
help
This enables USB-EP to contain a MS Windows USB string descriptor
which is then used by MS Windows to request a Extended Compatible
ID Feature descriptor so that Windows will know to load its WINUSB
driver.
config PLATFORM_EC_USB_PD_TCPC_LOW_POWER
bool "Allow Type-C Port Controller to enter low-power mode"
default y
help
Allows entry to a low power mode when the USB port is idle.
When enabled, an enter_low_power_mode member is present in tcpm_drv
and should be set to a function that selects that mode, such as
tcpci_enter_low_power_mode() for TCPCI-compatible TCPCs.
config PLATFORM_EC_USB_PD_TCPC_LPM_EXIT_DEBOUNCE_US
int "Debounce delay when exiting low-power mode (uS)"
depends on PLATFORM_EC_USB_PD_TCPC_LOW_POWER
default 25000
help
Some TCPCs need additional time following a VBUS change to internally
debounce the CC line status and update the CC_STATUS register. This
is the delay in microseconds to allow before checking the CC line
status in the EC.
config PLATFORM_EC_USB_PD_TCPC_VCONN
bool "If VCONN is enabled, the TCPC will provide VCONN"
default y if !PLATFORM_EC_USBC_PPC_SYV682X
default y if PLATFORM_EC_USB_PD_TCPM_ITE_ON_CHIP
default y if PLATFORM_EC_USBC_PPC_SYV682X_NO_CC
help
Source USB Type-C connector voltage (VCONN) from the Type-C Port
Controller (TCPC), and also the Power Path Controller (PPC) if
present. Some TCPC/PPC can't handle 5V on its host-side CC pins, so
disable this config in those cases.
config PLATFORM_EC_CONSOLE_CMD_PPC_DUMP
bool "Console command: ppc_dump"
depends on PLATFORM_EC_USBC_PPC
default y
help
Allows dumping of the Power Path Controller (PPC) state, which is
basically a list of registers and their values. The actual dump
function is driver-specific (the reg_dump member of ppc_drv). By
reference to the datasheet for the part this can help you figure out
what is going on.
config PLATFORM_EC_USB_PD_TCPM_DRIVER_IT83XX
bool "Enable IT83XX driver"
depends on PLATFORM_EC_USB_PD_TCPM_ITE_ON_CHIP
help
Enable a driver for the ITE IT83XX on-chip UBB Type-C Port Manager.
This supports up to two USB Type-C ports with Dual Role function
(provider and consumer) and Fast Role Swap detection.
config PLATFORM_EC_USB_PD_TCPM_DRIVER_IT8XXX2
bool "Enable IT8XXX2 driver"
depends on PLATFORM_EC_USB_PD_TCPM_ITE_ON_CHIP
help
Enable a driver for the ITE IT8XXX2 on-chip UBB Type-C Port Manager.
This supports up to two USB Type-C ports with Dual Role function
(provider and consumer) and Fast Role Swap detection.
config PLATFORM_EC_USB_PD_PULLUP
int "Default source Rp value"
default 1
help
Default pull-up value on the USB-C ports when they are used as source.
Valid values are 0 (USB default current), 1 (1.5A), and 2 (3.0A). See
enum tcpc_rp_value.
config PLATFORM_EC_USB_PD_ONLY_FIXED_PDOS
bool "Only support FIXED type PDOs"
help
Ignore all non-fixed PDOs received from a src_caps message. Enable
this for boards (like servo_v4) which only support FIXED PDO types.
endif # PLATFORM_EC_USBC
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