#
# USB Gadget support on a system involves
#    (a) a peripheral controller, and
#    (b) the gadget driver using it.
#
# for 2.5 kbuild, drivers/usb/gadget/Kconfig
# source this at the end of drivers/usb/Kconfig
#
menuconfig USB_GADGET
	tristate "Support for USB Gadgets"
	depends on EXPERIMENTAL
	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 two "to-the-host" connectors to each other.

	   Linux 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 like "EHCI", "OHCI",
	   or "UHCI", and are usually integrated into southbridges on PC
	   motherboards.

	   Enable this configuration option if you want to run Linux 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 you use modular gadget drivers,
	   you may configure more than one.)

	   If in doubt, say "N" and don't enable these drivers; most people
	   don't have this kind of hardware (except maybe inside Linux PDAs).

#
# USB Peripheral Controller Support
#
choice
	prompt "USB Peripheral Controller Support"
	depends on USB_GADGET

config USB_NET2280
	tristate "NetChip 2280 USB Peripheral Controller"
	depends on PCI && USB_GADGET
	help
	   NetChip 2280 is a PCI based USB peripheral controller which
	   supports both full and high speed USB 2.0 data transfers.  
	   
	   It has six configurable endpoints, as well as endpoint zero
	   (for control transfers) and several endpoints with dedicated
	   functions.

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "net2280" and force all
	   gadget drivers to also be dynamically linked.

endchoice

#
# USB Gadget Drivers
#
choice
	prompt "USB Gadget Drivers"
	depends on USB_GADGET
	default USB_ETH

# FIXME want a cleaner dependency/config approach for drivers.

config USB_ZERO
	tristate "Gadget Zero (DEVELOPMENT)"
	depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)
	help
	  Gadget Zero is a two-configuration device.  It either sinks and
	  sources bulk data; or it loops back a configurable number of
	  transfers.  It also implements control requests, for "chapter 9"
	  conformance.  The driver needs only two bulk-capable endpoints, so
	  it can work on top of most device-side usb controllers.  It's
	  useful for testing, and is also a working example showing how
	  USB "gadget drivers" can be written.

	  Make this be the first driver you try using on top of any new
	  USB peripheral controller driver.  Then you can use host-side
	  test software, like the "usbtest" driver, to put your hardware
	  and its driver through a basic set of functional tests.

	  Gadget Zero also works with the host-side "usb-skeleton" driver,
	  and with many kinds of host-side test software.  You may need
	  to tweak product and vendor IDs before host software knows about
	  this device, and arrange to select an appropriate configuration.

	  Say "y" to link the driver statically, or "m" to build a
	  dynamically linked module called "g_zero".

config USB_ZERO_NET2280
	bool
	# for now, treat the "dummy" hcd as if it were a net2280
	depends on USB_ZERO && (USB_NET2280 || USB_DUMMY_HCD)
	default y

config USB_ZERO_PXA2XX
	bool
	depends on USB_ZERO && USB_PXA2XX
	default y

config USB_ZERO_SA1100
	bool
	depends on USB_ZERO && USB_SA1100
	default y


config USB_ETH
	tristate "Ethernet Gadget"
	depends on USB_GADGET && NET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)
	help
	  This driver implements Ethernet style communication, in either
	  of two ways:
	  
	   - The "Communication Device Class" (CDC) Ethernet Control Model.
	     That protocol is often avoided with pure Ethernet adapters, in
	     favor of simpler vendor-specific hardware, but is widely
	     supported by firmware for smart network devices.

	   - On hardware can't implement that protocol, a simpler approach
	     is used, placing fewer demands on USB.

	  Within the USB device, this gadget driver exposes a network device
	  "usbX", where X depends on what other networking devices you have.
	  Treat it like a two-node Ethernet link:  host, and gadget.

	  The Linux-USB host-side "usbnet" driver interoperates with this
	  driver, so that deep I/O queues can be supported.  On 2.4 kernels,
	  use "CDCEther" instead, if you're using the CDC option. That CDC
	  mode should also interoperate with standard CDC Ethernet class
	  drivers on other host operating systems.

	  Say "y" to link the driver statically, or "m" to build a
	  dynamically linked module called "g_ether".


config USB_ETH_NET2280
	bool
	# for now, treat the "dummy" hcd as if it were a net2280
	depends on USB_ETH && (USB_NET2280 || USB_DUMMY_HCD)
	default y

config USB_ETH_PXA2XX
	bool
	depends on USB_ETH && USB_PXA2XX
	default y

config USB_ETH_SA1100
	bool
	depends on USB_ETH && USB_SA1100
	default y

config USB_GADGETFS
	tristate "Gadget Filesystem (EXPERIMENTAL)"
	depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX) && EXPERIMENTAL
	help
	  This driver provides a filesystem based API that lets user mode
	  programs implement a single-configuration USB device, including
	  endpoint I/O and control requests that don't relate to enumeration.
	  All endpoints, transfer speeds, and transfer types supported by
	  the hardware are available, through read() and write() calls.

	  Say "y" to link the driver statically, or "m" to build a
	  dynamically linked module called "gadgetfs".

config USB_GADGETFS_NET2280
	bool
	# for now, treat the "dummy" hcd as if it were a net2280
	depends on USB_GADGETFS && (USB_NET2280 || USB_DUMMY_HCD)
	default y

config USB_GADGETFS_PXA2XX
	bool
	depends on USB_GADGETFS && USB_PXA2XX
	default y

config USB_G_SERIAL
	tristate "serial Gadget"
	depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)

config USB_G_SERIAL_NET2280
	bool
	# for now, treat the "dummy" hcd as if it were a net2280
	depends on USB_G_SERIAL && (USB_NET2280 || USB_DUMMY_HCD)
	default y

config USB_G_SERIAL_PXA2XX
	bool
	depends on USB_G_SERIAL && USB_PXA2XX
	default y

config USB_G_SERIAL_SA1100
	bool
	depends on USB_G_SERIAL && USB_SA1100
	default y


endchoice

# endmenuconfig