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#
# USB Gadget support on a system involves
# (a) a peripheral controller, and
# (b) the gadget driver using it.
#
# NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
#
# - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
# - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
# - Some systems have both kinds of controllers.
#
# With help from a special transceiver and a "Mini-AB" jack, systems with
# both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
#
menuconfig USB_GADGET
bool "USB Gadget Support"
help
USB is a master/slave protocol, organized with one master
host (such as a PC) controlling up to 127 peripheral devices.
The USB hardware is asymmetric, which makes it easier to set up:
you can't connect a "to-the-host" connector to a peripheral.
U-Boot can run in the host, or in the peripheral. In both cases
you need a low level bus controller driver, and some software
talking to it. Peripheral controllers are often discrete silicon,
or are integrated with the CPU in a microcontroller. The more
familiar host side controllers have names like "EHCI", "OHCI",
or "UHCI", and are usually integrated into southbridges on PC
motherboards.
Enable this configuration option if you want to run U-Boot inside
a USB peripheral device. Configure one hardware driver for your
peripheral/device side bus controller, and a "gadget driver" for
your peripheral protocol.
if USB_GADGET
config USB_GADGET_MANUFACTURER
string "Vendor name of the USB device"
default "U-Boot"
help
Vendor name of the USB device emulated, reported to the host device.
This is usually either the manufacturer of the device or the SoC.
config USB_GADGET_VENDOR_NUM
hex "Vendor ID of the USB device"
default 0x0
help
Vendor ID of the USB device emulated, reported to the host device.
This is usually the board or SoC vendor's, unless you've registered
for one.
config USB_GADGET_PRODUCT_NUM
hex "Product ID of the USB device"
default 0x0
help
Product ID of the USB device emulated, reported to the host device.
config USB_GADGET_ATMEL_USBA
bool "Atmel USBA"
select USB_GADGET_DUALSPEED
help
USBA is the integrated high-speed USB Device controller on
the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
config USB_GADGET_BCM_UDC_OTG_PHY
bool "Broadcom UDC OTG PHY"
help
Enable the Broadcom UDC OTG physical device interface.
config USB_GADGET_DWC2_OTG
bool "DesignWare USB2.0 HS OTG controller (gadget mode)"
select USB_GADGET_DUALSPEED
help
The Designware USB2.0 high-speed gadget controller
integrated into many SoCs. Select this option if you want the
driver to operate in Peripheral mode. This option requires
USB_GADGET to be enabled.
if USB_GADGET_DWC2_OTG
config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
bool "DesignWare USB2.0 HS OTG controller 8-bit PHY bus width"
help
Set the Designware USB2.0 high-speed OTG controller
PHY interface width to 8 bits, rather than the default (16 bits).
endif # USB_GADGET_DWC2_OTG
config CI_UDC
bool "ChipIdea device controller"
select USB_GADGET_DUALSPEED
help
Say Y here to enable device controller functionality of the
ChipIdea driver.
config USB_GADGET_VBUS_DRAW
int "Maximum VBUS Power usage (2-500 mA)"
range 2 500
default 2
help
Some devices need to draw power from USB when they are
configured, perhaps to operate circuitry or to recharge
batteries. This is in addition to any local power supply,
such as an AC adapter or batteries.
Enter the maximum power your device draws through USB, in
milliAmperes. The permitted range of values is 2 - 500 mA;
0 mA would be legal, but can make some hosts misbehave.
This value will be used except for system-specific gadget
drivers that have more specific information.
# Selected by UDC drivers that support high-speed operation.
config USB_GADGET_DUALSPEED
bool
config USB_GADGET_DOWNLOAD
bool "Enable USB download gadget"
help
Composite USB download gadget support (g_dnl) for download functions.
This code works on top of composite gadget.
if USB_GADGET_DOWNLOAD
config USB_FUNCTION_SDP
bool "Enable USB SDP (Serial Download Protocol)"
help
Enable Serial Download Protocol (SDP) device support in U-Boot. This
allows to download images into memory and execute (jump to) them
using the same protocol as implemented by the i.MX family's boot ROM.
endif # USB_GADGET_DOWNLOAD
config USB_ETHER
bool "USB Ethernet Gadget"
help
Creates an Ethernet network device through a USB peripheral
controller. This will create a network interface on both the device
(U-Boot) and the host (remote device) that can be used just like any
other nework interface.
It will bind on the peripheral USB controller, ignoring the USB hosts
controllers in the system.
if USB_ETHER
choice
prompt "USB Ethernet Gadget Model"
default USB_ETH_RNDIS
help
There is several models (protocols) to implement Ethernet over USB
devices. The main ones are Microsoft's RNDIS and USB's CDC-Ethernet
(also called CDC-ECM). RNDIS is obviously compatible with Windows,
while CDC-ECM is not. Most other operating systems support both, so
if inter-operability is a concern, RNDIS is to be preferred.
config USB_ETH_CDC
bool "CDC-ECM Protocol"
help
CDC (Communications Device Class) is the standard for Ethernet over
USB devices. While there's several alternatives, the most widely used
protocol is ECM (Ethernet Control Model). However, compatibility with
Windows is not that great.
config USB_ETH_RNDIS
bool "RNDIS Protocol"
help
The RNDIS (Remote Network Driver Interface Specification) is a
Microsoft proprietary protocol to create an Ethernet device over USB.
Windows obviously supports it, as well as all the major operating
systems, so it's the best option for compatibility.
endchoice
config USBNET_DEVADDR
string "USB Gadget Ethernet device mac address"
default "de:ad:be:ef:00:01"
help
Ethernet MAC address of the device-side (ie. local board's) MAC
address of the usb_ether interface
config USBNET_HOST_ADDR
string "USB Gadget Ethernet host mac address"
default "de:ad:be:ef:00:00"
help
Ethernet MAC address of the host-side (ie. remote device's) MAC
address of the usb_ether interface
endif # USB_ETHER
endif # USB_GADGET
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