path: root/drivers/usb/gadget/Kconfig

#
# 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
	tristate "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.

	   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 "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).

	   For more information, see <http://www.linux-usb.org/gadget> and
	   the kernel DocBook documentation for this API.

if USB_GADGET

config USB_GADGET_DEBUG
	boolean "Debugging messages (DEVELOPMENT)"
	depends on DEBUG_KERNEL
	help
	   Many controller and gadget drivers will print some debugging
	   messages if you use this option to ask for those messages.

	   Avoid enabling these messages, even if you're actively
	   debugging such a driver.  Many drivers will emit so many
	   messages that the driver timings are affected, which will
	   either create new failure modes or remove the one you're
	   trying to track down.  Never enable these messages for a
	   production build.

config USB_GADGET_DEBUG_FILES
	boolean "Debugging information files (DEVELOPMENT)"
	depends on PROC_FS
	help
	   Some of the drivers in the "gadget" framework can expose
	   debugging information in files such as /proc/driver/udc
	   (for a peripheral controller).  The information in these
	   files may help when you're troubleshooting or bringing up a
	   driver on a new board.   Enable these files by choosing "Y"
	   here.  If in doubt, or to conserve kernel memory, say "N".

config USB_GADGET_DEBUG_FS
	boolean "Debugging information files in debugfs (DEVELOPMENT)"
	depends on DEBUG_FS
	help
	   Some of the drivers in the "gadget" framework can expose
	   debugging information in files under /sys/kernel/debug/.
	   The information in these files may help when you're
	   troubleshooting or bringing up a driver on a new board.
	   Enable these files by choosing "Y" here.  If in doubt, or
	   to conserve kernel memory, say "N".

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.

config	USB_GADGET_SELECTED
	boolean

#
# USB Peripheral Controller Support
#
# The order here is alphabetical, except that integrated controllers go
# before discrete ones so they will be the initial/default value:
#   - integrated/SOC controllers first
#   - licensed IP used in both SOC and discrete versions
#   - discrete ones (including all PCI-only controllers)
#   - debug/dummy gadget+hcd is last.
#
choice
	prompt "USB Peripheral Controller"
	depends on USB_GADGET
	help
	   A USB device uses a controller to talk to its host.
	   Systems should have only one such upstream link.
	   Many controller drivers are platform-specific; these
	   often need board-specific hooks.

#
# Integrated controllers
#

config USB_GADGET_AT91
	boolean "Atmel AT91 USB Device Port"
	depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9
	select USB_GADGET_SELECTED
	help
	   Many Atmel AT91 processors (such as the AT91RM2000) have a
	   full speed USB Device Port with support for five configurable
	   endpoints (plus endpoint zero).

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "at91_udc" and force all
	   gadget drivers to also be dynamically linked.

config USB_AT91
	tristate
	depends on USB_GADGET_AT91
	default USB_GADGET

config USB_GADGET_ATMEL_USBA
	boolean "Atmel USBA"
	select USB_GADGET_DUALSPEED
	depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL
	help
	  USBA is the integrated high-speed USB Device controller on
	  the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.

config USB_ATMEL_USBA
	tristate
	depends on USB_GADGET_ATMEL_USBA
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_FSL_USB2
	boolean "Freescale Highspeed USB DR Peripheral Controller"
	depends on FSL_SOC
	select USB_GADGET_DUALSPEED
	help
	   Some of Freescale PowerPC processors have a High Speed
	   Dual-Role(DR) USB controller, which supports device mode.

	   The number of programmable endpoints is different through
	   SOC revisions.

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "fsl_usb2_udc" and force
	   all gadget drivers to also be dynamically linked.

config USB_FSL_USB2
	tristate
	depends on USB_GADGET_FSL_USB2
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_LH7A40X
	boolean "LH7A40X"
	depends on ARCH_LH7A40X
	help
	   This driver provides USB Device Controller driver for LH7A40x

config USB_LH7A40X
	tristate
	depends on USB_GADGET_LH7A40X
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_OMAP
	boolean "OMAP USB Device Controller"
	depends on ARCH_OMAP
	select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG
	select USB_OTG_UTILS if ARCH_OMAP
	help
	   Many Texas Instruments OMAP processors have flexible full
	   speed USB device controllers, with support for up to 30
	   endpoints (plus endpoint zero).  This driver supports the
	   controller in the OMAP 1611, and should work with controllers
	   in other OMAP processors too, given minor tweaks.

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

config USB_OMAP
	tristate
	depends on USB_GADGET_OMAP
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_OTG
	boolean "OTG Support"
	depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD
	help
	   The most notable feature of USB OTG is support for a
	   "Dual-Role" device, which can act as either a device
	   or a host.  The initial role choice can be changed
	   later, when two dual-role devices talk to each other.

	   Select this only if your OMAP board has a Mini-AB connector.

config USB_GADGET_PXA25X
	boolean "PXA 25x or IXP 4xx"
	depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
	help
	   Intel's PXA 25x series XScale ARM-5TE processors include
	   an integrated full speed USB 1.1 device controller.  The
	   controller in the IXP 4xx series is register-compatible.

	   It has fifteen fixed-function endpoints, as well as endpoint
	   zero (for control transfers).

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "pxa25x_udc" and force all
	   gadget drivers to also be dynamically linked.

config USB_PXA25X
	tristate
	depends on USB_GADGET_PXA25X
	default USB_GADGET
	select USB_GADGET_SELECTED

# if there's only one gadget driver, using only two bulk endpoints,
# don't waste memory for the other endpoints
config USB_PXA25X_SMALL
	depends on USB_GADGET_PXA25X
	bool
	default n if USB_ETH_RNDIS
	default y if USB_ZERO
	default y if USB_ETH
	default y if USB_G_SERIAL

config USB_GADGET_PXA27X
	boolean "PXA 27x"
	depends on ARCH_PXA && PXA27x
	select USB_OTG_UTILS
	help
	   Intel's PXA 27x series XScale ARM v5TE processors include
	   an integrated full speed USB 1.1 device controller.

	   It has up to 23 endpoints, as well as endpoint zero (for
	   control transfers).

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "pxa27x_udc" and force all
	   gadget drivers to also be dynamically linked.

config USB_PXA27X
	tristate
	depends on USB_GADGET_PXA27X
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_S3C2410
	boolean "S3C2410 USB Device Controller"
	depends on ARCH_S3C2410
	help
	  Samsung's S3C2410 is an ARM-4 processor with an integrated
	  full speed USB 1.1 device controller.  It has 4 configurable
	  endpoints, as well as endpoint zero (for control transfers).

	  This driver has been tested on the S3C2410, S3C2412, and
	  S3C2440 processors.

config USB_S3C2410
	tristate
	depends on USB_GADGET_S3C2410
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_S3C2410_DEBUG
	boolean "S3C2410 udc debug messages"
	depends on USB_GADGET_S3C2410

#
# Controllers available in both integrated and discrete versions
#

# musb builds in ../musb along with host support
config USB_GADGET_MUSB_HDRC
	boolean "Inventra HDRC USB Peripheral (TI, ADI, ...)"
	depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG)
	select USB_GADGET_DUALSPEED
	select USB_GADGET_SELECTED
	help
	  This OTG-capable silicon IP is used in dual designs including
	  the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin

config USB_GADGET_IMX
	boolean "Freescale IMX USB Peripheral Controller"
	depends on ARCH_MX1
	help
	   Freescale's IMX series include an integrated full speed
	   USB 1.1 device controller.  The controller in the IMX series
	   is register-compatible.

	   It has Six fixed-function endpoints, as well as endpoint
	   zero (for control transfers).

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

config USB_IMX
	tristate
	depends on USB_GADGET_IMX
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_M66592
	boolean "Renesas M66592 USB Peripheral Controller"
	select USB_GADGET_DUALSPEED
	help
	   M66592 is a discrete USB peripheral controller chip that
	   supports both full and high speed USB 2.0 data transfers.
	   It has seven configurable endpoints, and endpoint zero.

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "m66592_udc" and force all
	   gadget drivers to also be dynamically linked.

config USB_M66592
	tristate
	depends on USB_GADGET_M66592
	default USB_GADGET
	select USB_GADGET_SELECTED

config SUPERH_BUILT_IN_M66592
	boolean "Enable SuperH built-in USB like the M66592"
	depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722
	help
	   SH7722 has USB like the M66592.

	   The transfer rate is very slow when use "Ethernet Gadget".
	   However, this problem is improved if change a value of
	   NET_IP_ALIGN to 4.

#
# Controllers available only in discrete form (and all PCI controllers)
#

config USB_GADGET_AMD5536UDC
	boolean "AMD5536 UDC"
	depends on PCI
	select USB_GADGET_DUALSPEED
	help
	   The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
	   It is a USB Highspeed DMA capable USB device controller. Beside ep0
	   it provides 4 IN and 4 OUT endpoints (bulk or interrupt type).
	   The UDC port supports OTG operation, and may be used as a host port
	   if it's not being used to implement peripheral or OTG roles.

	   Say "y" to link the driver statically, or "m" to build a
	   dynamically linked module called "amd5536udc" and force all
	   gadget drivers to also be dynamically linked.

config USB_AMD5536UDC
	tristate
	depends on USB_GADGET_AMD5536UDC
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_FSL_QE
	boolean "Freescale QE/CPM USB Device Controller"
	depends on FSL_SOC && (QUICC_ENGINE || CPM)
	help
	   Some of Freescale PowerPC processors have a Full Speed
	   QE/CPM2 USB controller, which support device mode with 4
	   programmable endpoints. This driver supports the
	   controller in the MPC8360 and MPC8272, and should work with
	   controllers having QE or CPM2, given minor tweaks.

	   Set CONFIG_USB_GADGET to "m" to build this driver as a
	   dynamically linked module called "fsl_qe_udc".

config USB_FSL_QE
	tristate
	depends on USB_GADGET_FSL_QE
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_CI13XXX
	boolean "MIPS USB CI13xxx"
	depends on PCI
	select USB_GADGET_DUALSPEED
	help
	  MIPS USB IP core family device controller
	  Currently it only supports IP part number CI13412

	  Say "y" to link the driver statically, or "m" to build a
	  dynamically linked module called "ci13xxx_udc" and force all
	  gadget drivers to also be dynamically linked.

config USB_CI13XXX
	tristate
	depends on USB_GADGET_CI13XXX
	default USB_GADGET
	select USB_GADGET_SELECTED

config USB_GADGET_NET2280
	boolean "NetChip 228x"
	depends on PCI
	select USB_GADGET_DUALSPEED
	help
	   NetChip 2280 / 2282 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.

config USB_NET2280
	tristate
	depends on USB_GADGET_NET2280
	default USB_GADGET
	select