aa16ca307e
Small updates to the EHCI driver's ISO support: - Get rid of the Kconfig option for full speed ISO. It may not be perfect yet, but it hasn't appeared to be dangerous and pretty much every configuration wants it. - Instead of two places to disable an empty periodic schedule after an ISO transfer completes, just have one. - After the periodic schedule is disabled, we can short-circuit the schedule scan ... it can't possibly have more work to do. Assuming a typical config with split iso enabled, the only change in behavior should be almost unobservable: quicker termination of periodic scans when the schedule gets emptied. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
264 lines
9.0 KiB
Plaintext
264 lines
9.0 KiB
Plaintext
#
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# USB Host Controller Drivers
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#
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comment "USB Host Controller Drivers"
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depends on USB
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config USB_EHCI_HCD
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tristate "EHCI HCD (USB 2.0) support"
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depends on USB && USB_ARCH_HAS_EHCI
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---help---
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The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
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"high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
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If your USB host controller supports USB 2.0, you will likely want to
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configure this Host Controller Driver. At the time of this writing,
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the primary implementation of EHCI is a chip from NEC, widely available
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in add-on PCI cards, but implementations are in the works from other
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vendors including Intel and Philips. Motherboard support is appearing.
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EHCI controllers are packaged with "companion" host controllers (OHCI
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or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
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will connect to EHCI if the device is high speed, otherwise they
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connect to a companion controller. If you configure EHCI, you should
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probably configure the OHCI (for NEC and some other vendors) USB Host
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Controller Driver or UHCI (for Via motherboards) Host Controller
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Driver too.
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You may want to read <file:Documentation/usb/ehci.txt>.
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To compile this driver as a module, choose M here: the
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module will be called ehci-hcd.
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config USB_EHCI_ROOT_HUB_TT
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bool "Root Hub Transaction Translators (EXPERIMENTAL)"
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depends on USB_EHCI_HCD && EXPERIMENTAL
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---help---
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Some EHCI chips have vendor-specific extensions to integrate
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transaction translators, so that no OHCI or UHCI companion
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controller is needed. It's safe to say "y" even if your
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controller doesn't support this feature.
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This supports the EHCI implementation that's originally
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from ARC, and has since changed hands a few times.
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config USB_EHCI_TT_NEWSCHED
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bool "Improved Transaction Translator scheduling (EXPERIMENTAL)"
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depends on USB_EHCI_HCD && EXPERIMENTAL
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---help---
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This changes the periodic scheduling code to fill more of the low
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and full speed bandwidth available from the Transaction Translator
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(TT) in USB 2.0 hubs. Without this, only one transfer will be
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issued in each microframe, significantly reducing the number of
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periodic low/fullspeed transfers possible.
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If you have multiple periodic low/fullspeed devices connected to a
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highspeed USB hub which is connected to a highspeed USB Host
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Controller, and some of those devices will not work correctly
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(possibly due to "ENOSPC" or "-28" errors), say Y.
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If unsure, say N.
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config USB_EHCI_BIG_ENDIAN_MMIO
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bool
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depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX)
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default y
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config USB_EHCI_BIG_ENDIAN_DESC
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bool
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depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX)
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default y
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config USB_EHCI_FSL
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bool
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depends on USB_EHCI_HCD
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select USB_EHCI_ROOT_HUB_TT
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default y if MPC834x || PPC_MPC831x
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---help---
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Variation of ARC USB block used in some Freescale chips.
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config USB_EHCI_HCD_PPC_OF
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bool "EHCI support for PPC USB controller on OF platform bus"
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depends on USB_EHCI_HCD && PPC_OF
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default y
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---help---
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Enables support for the USB controller present on the PowerPC
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OpenFirmware platform bus.
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config USB_ISP116X_HCD
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tristate "ISP116X HCD support"
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depends on USB
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---help---
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The ISP1160 and ISP1161 chips are USB host controllers. Enable this
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option if your board has this chip. If unsure, say N.
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This driver does not support isochronous transfers.
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To compile this driver as a module, choose M here: the
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module will be called isp116x-hcd.
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config USB_OHCI_HCD
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tristate "OHCI HCD support"
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depends on USB && USB_ARCH_HAS_OHCI
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select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
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select I2C if ARCH_PNX4008
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---help---
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The Open Host Controller Interface (OHCI) is a standard for accessing
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USB 1.1 host controller hardware. It does more in hardware than Intel's
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UHCI specification. If your USB host controller follows the OHCI spec,
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say Y. On most non-x86 systems, and on x86 hardware that's not using a
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USB controller from Intel or VIA, this is appropriate. If your host
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controller doesn't use PCI, this is probably appropriate. For a PCI
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based system where you're not sure, the "lspci -v" entry will list the
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right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
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To compile this driver as a module, choose M here: the
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module will be called ohci-hcd.
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config USB_OHCI_HCD_PPC_SOC
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bool "OHCI support for on-chip PPC USB controller"
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depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx)
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default y
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select USB_OHCI_BIG_ENDIAN_DESC
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select USB_OHCI_BIG_ENDIAN_MMIO
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---help---
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Enables support for the USB controller on the MPC52xx or
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STB03xxx processor chip. If unsure, say Y.
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config USB_OHCI_HCD_PPC_OF
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bool "OHCI support for PPC USB controller on OF platform bus"
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depends on USB_OHCI_HCD && PPC_OF
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default y
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---help---
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Enables support for the USB controller PowerPC present on the
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OpenFirmware platform bus.
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config USB_OHCI_HCD_PPC_OF_BE
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bool "Support big endian HC"
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depends on USB_OHCI_HCD_PPC_OF
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default y
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select USB_OHCI_BIG_ENDIAN_DESC
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select USB_OHCI_BIG_ENDIAN_MMIO
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config USB_OHCI_HCD_PPC_OF_LE
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bool "Support little endian HC"
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depends on USB_OHCI_HCD_PPC_OF
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default n
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select USB_OHCI_LITTLE_ENDIAN
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config USB_OHCI_HCD_PCI
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bool "OHCI support for PCI-bus USB controllers"
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depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx || USB_OHCI_HCD_PPC_OF)
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default y
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select USB_OHCI_LITTLE_ENDIAN
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---help---
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Enables support for PCI-bus plug-in USB controller cards.
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If unsure, say Y.
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config USB_OHCI_HCD_SSB
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bool "OHCI support for Broadcom SSB OHCI core"
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depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
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default n
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---help---
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Support for the Sonics Silicon Backplane (SSB) attached
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Broadcom USB OHCI core.
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This device is present in some embedded devices with
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Broadcom based SSB bus.
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If unsure, say N.
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config USB_OHCI_BIG_ENDIAN_DESC
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bool
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depends on USB_OHCI_HCD
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default n
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config USB_OHCI_BIG_ENDIAN_MMIO
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bool
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depends on USB_OHCI_HCD
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default n
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config USB_OHCI_LITTLE_ENDIAN
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bool
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depends on USB_OHCI_HCD
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default n if STB03xxx || PPC_MPC52xx
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default y
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config USB_UHCI_HCD
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tristate "UHCI HCD (most Intel and VIA) support"
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depends on USB && PCI
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---help---
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The Universal Host Controller Interface is a standard by Intel for
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accessing the USB hardware in the PC (which is also called the USB
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host controller). If your USB host controller conforms to this
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standard, you may want to say Y, but see below. All recent boards
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with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
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i810, i820) conform to this standard. Also all VIA PCI chipsets
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(like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
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133). If unsure, say Y.
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To compile this driver as a module, choose M here: the
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module will be called uhci-hcd.
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config USB_U132_HCD
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tristate "Elan U132 Adapter Host Controller"
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depends on USB && USB_FTDI_ELAN
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default M
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help
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The U132 adapter is a USB to CardBus adapter specifically designed
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for PC cards that contain an OHCI host controller. Typical PC cards
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are the Orange Mobile 3G Option GlobeTrotter Fusion card. The U132
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adapter will *NOT* work with PC cards that do not contain an OHCI
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controller.
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For those PC cards that contain multiple OHCI controllers only the
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first one is used.
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The driver consists of two modules, the "ftdi-elan" module is a
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USB client driver that interfaces to the FTDI chip within ELAN's
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USB-to-PCMCIA adapter, and this "u132-hcd" module is a USB host
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controller driver that talks to the OHCI controller within the
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CardBus cards that are inserted in the U132 adapter.
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This driver has been tested with a CardBus OHCI USB adapter, and
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worked with a USB PEN Drive inserted into the first USB port of
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the PCCARD. A rather pointless thing to do, but useful for testing.
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It is safe to say M here.
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See also <http://www.elandigitalsystems.com/support/ufaq/u132linux.php>
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config USB_SL811_HCD
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tristate "SL811HS HCD support"
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depends on USB
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help
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The SL811HS is a single-port USB controller that supports either
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host side or peripheral side roles. Enable this option if your
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board has this chip, and you want to use it as a host controller.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called sl811-hcd.
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config USB_SL811_CS
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tristate "CF/PCMCIA support for SL811HS HCD"
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depends on USB_SL811_HCD && PCMCIA
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help
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Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC
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REX-CFU1U CF card (often used with PDAs). If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called "sl811_cs".
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config USB_R8A66597_HCD
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tristate "R8A66597 HCD support"
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depends on USB
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help
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The R8A66597 is a USB 2.0 host and peripheral controller.
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Enable this option if your board has this chip, and you want
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to use it as a host controller. If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called r8a66597-hcd.
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