[mirror_ubuntu-artful-kernel.git] / drivers / usb / host / Kconfig

#
# USB Host Controller Drivers
#
comment "USB Host Controller Drivers"
	depends on USB

config USB_EHCI_HCD
	tristate "EHCI HCD (USB 2.0) support"
	depends on USB && USB_ARCH_HAS_EHCI
	---help---
	  The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
	  "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
	  If your USB host controller supports USB 2.0, you will likely want to
	  configure this Host Controller Driver.  At the time of this writing, 
	  the primary implementation of EHCI is a chip from NEC, widely available
	  in add-on PCI cards, but implementations are in the works from other 
	  vendors including Intel and Philips.  Motherboard support is appearing.

	  EHCI controllers are packaged with "companion" host controllers (OHCI
	  or UHCI) to handle USB 1.1 devices connected to root hub ports.  Ports
	  will connect to EHCI if the device is high speed, otherwise they
	  connect to a companion controller.  If you configure EHCI, you should
	  probably configure the OHCI (for NEC and some other vendors) USB Host
	  Controller Driver or UHCI (for Via motherboards) Host Controller
	  Driver too.

	  You may want to read <file:Documentation/usb/ehci.txt>.

	  To compile this driver as a module, choose M here: the
	  module will be called ehci-hcd.

config USB_EHCI_SPLIT_ISO
	bool "Full speed ISO transactions (EXPERIMENTAL)"
	depends on USB_EHCI_HCD && EXPERIMENTAL
	default n
	---help---
	  This code is new and hasn't been used with many different
	  EHCI or USB 2.0 transaction translator implementations.
	  It should work for ISO-OUT transfers, like audio.

config USB_EHCI_ROOT_HUB_TT
	bool "Root Hub Transaction Translators (EXPERIMENTAL)"
	depends on USB_EHCI_HCD && EXPERIMENTAL
	---help---
	  Some EHCI chips have vendor-specific extensions to integrate
	  transaction translators, so that no OHCI or UHCI companion
	  controller is needed.  It's safe to say "y" even if your
	  controller doesn't support this feature.

	  This supports the EHCI implementation that's originally
	  from ARC, and has since changed hands a few times.

config USB_EHCI_TT_NEWSCHED
	bool "Improved Transaction Translator scheduling (EXPERIMENTAL)"
	depends on USB_EHCI_HCD && EXPERIMENTAL
	---help---
	  This changes the periodic scheduling code to fill more of the low
	  and full speed bandwidth available from the Transaction Translator
	  (TT) in USB 2.0 hubs.  Without this, only one transfer will be
	  issued in each microframe, significantly reducing the number of
	  periodic low/fullspeed transfers possible.

	  If you have multiple periodic low/fullspeed devices connected to a
	  highspeed USB hub which is connected to a highspeed USB Host
	  Controller, and some of those devices will not work correctly
	  (possibly due to "ENOSPC" or "-28" errors), say Y.

	  If unsure, say N.

config USB_ISP116X_HCD
	tristate "ISP116X HCD support"
	depends on USB
	---help---
	  The ISP1160 and ISP1161 chips are USB host controllers. Enable this
	  option if your board has this chip. If unsure, say N.

	  This driver does not support isochronous transfers.

	  To compile this driver as a module, choose M here: the
	  module will be called isp116x-hcd.

config USB_OHCI_HCD
	tristate "OHCI HCD support"
	depends on USB && USB_ARCH_HAS_OHCI
	select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
	---help---
	  The Open Host Controller Interface (OHCI) is a standard for accessing
	  USB 1.1 host controller hardware.  It does more in hardware than Intel's
	  UHCI specification.  If your USB host controller follows the OHCI spec,
	  say Y.  On most non-x86 systems, and on x86 hardware that's not using a
	  USB controller from Intel or VIA, this is appropriate.  If your host
	  controller doesn't use PCI, this is probably appropriate.  For a PCI
	  based system where you're not sure, the "lspci -v" entry will list the
	  right "prog-if" for your USB controller(s):  EHCI, OHCI, or UHCI.

	  To compile this driver as a module, choose M here: the
	  module will be called ohci-hcd.

config USB_OHCI_HCD_PPC_SOC
	bool "OHCI support for on-chip PPC USB controller"
	depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx)
	default y
	select USB_OHCI_BIG_ENDIAN
	---help---
	  Enables support for the USB controller on the MPC52xx or
	  STB03xxx processor chip.  If unsure, say Y.

config USB_OHCI_HCD_PCI
	bool "OHCI support for PCI-bus USB controllers"
	depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx)
	default y
	select USB_OHCI_LITTLE_ENDIAN
	---help---
	  Enables support for PCI-bus plug-in USB controller cards.
	  If unsure, say Y.

config USB_OHCI_BIG_ENDIAN
	bool
	depends on USB_OHCI_HCD
	default n

config USB_OHCI_LITTLE_ENDIAN
	bool
	depends on USB_OHCI_HCD
	default n if STB03xxx || PPC_MPC52xx
	default y

config USB_UHCI_HCD
	tristate "UHCI HCD (most Intel and VIA) support"
	depends on USB && PCI
	---help---
	  The Universal Host Controller Interface is a standard by Intel for
	  accessing the USB hardware in the PC (which is also called the USB
	  host controller). If your USB host controller conforms to this
	  standard, you may want to say Y, but see below. All recent boards
	  with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
	  i810, i820) conform to this standard. Also all VIA PCI chipsets
	  (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
	  133). If unsure, say Y.

	  To compile this driver as a module, choose M here: the
	  module will be called uhci-hcd.

config USB_SL811_HCD
	tristate "SL811HS HCD support"
	depends on USB
	help
	  The SL811HS is a single-port USB controller that supports either
	  host side or peripheral side roles.  Enable this option if your
	  board has this chip, and you want to use it as a host controller. 
	  If unsure, say N.

	  To compile this driver as a module, choose M here: the
	  module will be called sl811-hcd.

config USB_SL811_CS
	tristate "CF/PCMCIA support for SL811HS HCD"
	depends on USB_SL811_HCD && PCMCIA
	help
	  Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC
	  REX-CFU1U CF card (often used with PDAs).  If unsure, say N.

	  To compile this driver as a module, choose M here: the
	  module will be called "sl811_cs".
Commit	Line	Data
1da177e4 LT	1	#
	2	# USB Host Controller Drivers
	3	#
	4	comment "USB Host Controller Drivers"
	5	depends on USB
	6
	7	config USB_EHCI_HCD
	8	tristate "EHCI HCD (USB 2.0) support"
76fa9a24	9	depends on USB && USB_ARCH_HAS_EHCI
1da177e4 LT	10	---help---
	11	The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
	12	"high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
	13	If your USB host controller supports USB 2.0, you will likely want to
b3c29d85 JJ	14	configure this Host Controller Driver. At the time of this writing,
	15	the primary implementation of EHCI is a chip from NEC, widely available
	16	in add-on PCI cards, but implementations are in the works from other
	17	vendors including Intel and Philips. Motherboard support is appearing.
1da177e4 LT	18
	19	EHCI controllers are packaged with "companion" host controllers (OHCI
	20	or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
b3c29d85	21	will connect to EHCI if the device is high speed, otherwise they
1da177e4 LT	22	connect to a companion controller. If you configure EHCI, you should
	23	probably configure the OHCI (for NEC and some other vendors) USB Host
	24	Controller Driver or UHCI (for Via motherboards) Host Controller
	25	Driver too.
	26
	27	You may want to read <file:Documentation/usb/ehci.txt>.
	28
	29	To compile this driver as a module, choose M here: the
	30	module will be called ehci-hcd.
	31
	32	config USB_EHCI_SPLIT_ISO
	33	bool "Full speed ISO transactions (EXPERIMENTAL)"
	34	depends on USB_EHCI_HCD && EXPERIMENTAL
	35	default n
	36	---help---
	37	This code is new and hasn't been used with many different
	38	EHCI or USB 2.0 transaction translator implementations.
	39	It should work for ISO-OUT transfers, like audio.
	40
	41	config USB_EHCI_ROOT_HUB_TT
	42	bool "Root Hub Transaction Translators (EXPERIMENTAL)"
	43	depends on USB_EHCI_HCD && EXPERIMENTAL
	44	---help---
	45	Some EHCI chips have vendor-specific extensions to integrate
	46	transaction translators, so that no OHCI or UHCI companion
	47	controller is needed. It's safe to say "y" even if your
	48	controller doesn't support this feature.
	49
ba47f66b DS	50	This supports the EHCI implementation that's originally
	51	from ARC, and has since changed hands a few times.
	52
	53	config USB_EHCI_TT_NEWSCHED
	54	bool "Improved Transaction Translator scheduling (EXPERIMENTAL)"
	55	depends on USB_EHCI_HCD && EXPERIMENTAL
	56	---help---
	57	This changes the periodic scheduling code to fill more of the low
	58	and full speed bandwidth available from the Transaction Translator
	59	(TT) in USB 2.0 hubs. Without this, only one transfer will be
	60	issued in each microframe, significantly reducing the number of
	61	periodic low/fullspeed transfers possible.
	62
	63	If you have multiple periodic low/fullspeed devices connected to a
	64	highspeed USB hub which is connected to a highspeed USB Host
	65	Controller, and some of those devices will not work correctly
	66	(possibly due to "ENOSPC" or "-28" errors), say Y.
	67
	68	If unsure, say N.
1da177e4	69
4808a1c0 OK	70	config USB_ISP116X_HCD
	71	tristate "ISP116X HCD support"
	72	depends on USB
4808a1c0 OK	73	---help---
	74	The ISP1160 and ISP1161 chips are USB host controllers. Enable this
	75	option if your board has this chip. If unsure, say N.
	76
	77	This driver does not support isochronous transfers.
	78
	79	To compile this driver as a module, choose M here: the
	80	module will be called isp116x-hcd.
	81
1da177e4 LT	82	config USB_OHCI_HCD
	83	tristate "OHCI HCD support"
	84	depends on USB && USB_ARCH_HAS_OHCI
	85	select ISP1301_OMAP if MACH_OMAP_H2 \|\| MACH_OMAP_H3
	86	---help---
	87	The Open Host Controller Interface (OHCI) is a standard for accessing
	88	USB 1.1 host controller hardware. It does more in hardware than Intel's
	89	UHCI specification. If your USB host controller follows the OHCI spec,
	90	say Y. On most non-x86 systems, and on x86 hardware that's not using a
	91	USB controller from Intel or VIA, this is appropriate. If your host
	92	controller doesn't use PCI, this is probably appropriate. For a PCI
	93	based system where you're not sure, the "lspci -v" entry will list the
	94	right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
	95
	96	To compile this driver as a module, choose M here: the
	97	module will be called ohci-hcd.
	98
	99	config USB_OHCI_HCD_PPC_SOC
	100	bool "OHCI support for on-chip PPC USB controller"
	101	depends on USB_OHCI_HCD && (STB03xxx \|\| PPC_MPC52xx)
	102	default y
	103	select USB_OHCI_BIG_ENDIAN
	104	---help---
	105	Enables support for the USB controller on the MPC52xx or
	106	STB03xxx processor chip. If unsure, say Y.
	107
	108	config USB_OHCI_HCD_PCI
	109	bool "OHCI support for PCI-bus USB controllers"
	110	depends on USB_OHCI_HCD && PCI && (STB03xxx \|\| PPC_MPC52xx)
	111	default y
	112	select USB_OHCI_LITTLE_ENDIAN
	113	---help---
	114	Enables support for PCI-bus plug-in USB controller cards.
	115	If unsure, say Y.
	116
	117	config USB_OHCI_BIG_ENDIAN
	118	bool
	119	depends on USB_OHCI_HCD
	120	default n
	121
	122	config USB_OHCI_LITTLE_ENDIAN
	123	bool
	124	depends on USB_OHCI_HCD
	125	default n if STB03xxx \|\| PPC_MPC52xx
	126	default y
	127
	128	config USB_UHCI_HCD
	129	tristate "UHCI HCD (most Intel and VIA) support"
	130	depends on USB && PCI
	131	---help---
	132	The Universal Host Controller Interface is a standard by Intel for
	133	accessing the USB hardware in the PC (which is also called the USB
	134	host controller). If your USB host controller conforms to this
	135	standard, you may want to say Y, but see below. All recent boards
	136	with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
	137	i810, i820) conform to this standard. Also all VIA PCI chipsets
	138	(like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
	139	133). If unsure, say Y.
	140
	141	To compile this driver as a module, choose M here: the
	142	module will be called uhci-hcd.
	143
	144	config USB_SL811_HCD
	145	tristate "SL811HS HCD support"
146	depends on USB
1da177e4 LT	147	help
	148	The SL811HS is a single-port USB controller that supports either
	149	host side or peripheral side roles. Enable this option if your
	150	board has this chip, and you want to use it as a host controller.
	151	If unsure, say N.
	152
	153	To compile this driver as a module, choose M here: the
	154	module will be called sl811-hcd.
	155
c6de2b64 DB	156	config USB_SL811_CS
	157	tristate "CF/PCMCIA support for SL811HS HCD"
	158	depends on USB_SL811_HCD && PCMCIA
c6de2b64 DB	159	help
	160	Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC
	161	REX-CFU1U CF card (often used with PDAs). If unsure, say N.
	162
	163	To compile this driver as a module, choose M here: the
	164	module will be called "sl811_cs".
	165