Difference between revisions of "USB Stack"

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The USB stack is the component which provides the communication between USB devices and their respective drivers and applications. It consists of multiple files, each with a distinct function. The USB stack in ReactOS is currently extremely limited. This page documents the development of the new USB stack. Development work on a USB 3 stack is not planned at this time.
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The [[USB]] stack is the component that provides the communication between [[USB]] devices and their respective drivers and applications. It consists of multiple files, each with a distinct function. The [[USB]] stack in [[ReactOS]] is currently limited. This page documents the development of the new [[USB]] stack. Development work on a [[USB]] 3 stack is in progress.
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'''NOTE: There is a known issue with booting [[ReactOS]] from the internal HDD with a [[USB]] storage device connected which causes ROS to lose the boot device. Until this problem is fixed or a workaround is developed, please unplug any [[USB]] storage devices during boot!'''
  
 
== Overview ==
 
== Overview ==
The goal is to develop a USB stack which:
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The goal is to develop a [[USB]] stack which:
* is USB 1.1 - 2.0 compliant
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* is USB 1.1 2.0 compliant
 
* uses WDM (NT 5) API
 
* uses WDM (NT 5) API
 
* is compatible with all USB devices and drivers (which adhere to the standard)
 
* is compatible with all USB devices and drivers (which adhere to the standard)
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== Goals ==
 
== Goals ==
* Primary Goal: USB HID (human input devices) and storage functionality working (Alpha).
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* Primary Goal: USBHID (human input devices) and storage functionality working (Alpha).
 
* Secondary Goal: Audio and other support added.
 
* Secondary Goal: Audio and other support added.
 
* Beyond: testing and debugging.
 
* Beyond: testing and debugging.
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== Status ==
 
== Status ==
'''2010-01-08''' - [[Michael Martin]] has started re-implementation. The plan is to start with the EHCI controller and then work up the stack. Drivers will be developed against Win2k and WinXP for starting off. Progress can be found [http://cia.vc/stats/author/mjmartin here].
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=== USB Core Status ===
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* There are 2 USB specifications for the USB 1.1 standard. Devices that are used in this standard are mice, keyboards, etc.
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** [[OHCI]] (Open Host Controller Interface Standard) – All transfers types are implemented (bulk, iso, control, interrupt)
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** [[UHCI]] (Universal Host Controller Interface Standard) – Totally missing. Though it should be do-able to use OHCI driver as a base and use [http://cgit.haiku-os.org/haiku/tree/src/add-ons/kernel/busses/usb/uhci.cpp Haiku driver]
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* [[EHCI]] (Enhanced Host Controller Interface) – Implemented transfer types: bulk & control. Interrupt & Isochronous transfers are not implemented. Due to the missing transfer types, devices who utilize those transfer types will not be available.
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* USBHUB – driver for managing port and hubs – Implementation state is unknown – Michel Martin has more information on that
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=== USB Mass Storage Support Status ===
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[http://www.eltima.com/share-usb-drive-over-network/ USB Mass Storage] is implemented in [[USBSTOR]] driver and is fully working. Tested in WinXP + [[EHCI|USBEHCI]] + [[USBSTOR]]. Mass storage support requires bulk and control transfers, which are implemented in [[EHCI|USBEHCI]].
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=== HID Status ===
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The HID framework is built on 5 drivers
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* HIDUSB – this is the interface driver for the USB bus. Currently supported devices are mice. Basic keyboard support should also work currently.
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* HIDCLASS – this is the class driver for HIDUSB and others. Functionality for mice & keyboard is implemented, though support for sending output reports is not implemented.
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* [[MOUHID]] – mouse function driver for USB hid standard – Fully implemented and working.
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* [[KBDHID]] – keyboard function driver for the hid standard – 90% implemented, needs KbdHid_InsertScanCodes implemented for keyboard scan code dispatching to kbdclass and led status indicator support (which requires sending output reports).
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* HIDPARSE – driver for parsing report descriptors – functionality implemented for mice, keyboard support needs HidParser_TranslateUsage fully implemented for modifier state (caps lock, num lock, scroll lock).
  
== Outdated information ==
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=== What already works ===
See [http://www.reactos.org/wiki/index.php?title=USB_Stack&oldid=24303#Historical_.28outdated.29_information here].
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* Mouse support has been tested in WinXP with ReactOS [[OHCI|USBOHCI]] + HIDUSB + HIDCLASS + [[MOUHID]] + HIDPARSE and is working. The USB + HID stack also works in ReactOS.
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* Basic Keyboard support is nearly ready.
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* USB Mass storage support – Needs mountmgr / partmgr driver implemented. Will also need mountvol and other missing PnP stuff. - needs a few more issues to be resolved
  
 
== See Also ==
 
== See Also ==
[[USB Stack Template]]
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*[[Supported USB Devices]]
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*[[USB Todo]] List
  
 
== References ==
 
== References ==
 
* [http://www.usb.org/developers/docs/ USB.org specifications]
 
* [http://www.usb.org/developers/docs/ USB.org specifications]
* [http://xenbits.xensource.com/ext/win-pvdrivers.hg XEN PV Usb Drivers]
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* [http://xenbits.xensource.com/ext/win-pvdrivers.hg XEN PV USB Drivers]
 
* [http://msdn.microsoft.com/en-us/library/ff537858.aspx Roadmap for Developing USB Drivers]
 
* [http://msdn.microsoft.com/en-us/library/ff537858.aspx Roadmap for Developing USB Drivers]
* Windows Driver Kit (Driver Development Kit).
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* Windows Driver Kit (Driver Development Kit)
* various books and sites on the WDM model, to be expanded later.
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* [http://www.microsoft.com/whdc/archive/USB2support.mspx?pf=true USB Driver Stack for Windows XP and later]
* [http://www.microsoft.com/whdc/archive/usb2support.mspx?pf=true USB Driver Stack for Windows XP and later]
 
 
* [http://msdn.microsoft.com/en-us/library/ff539301.aspx USB Device Stack for Windows XP and later]
 
* [http://msdn.microsoft.com/en-us/library/ff539301.aspx USB Device Stack for Windows XP and later]
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* [http://www.intel.com/technology/USB/download/xHCI_Specification_for_USB.pdf USB 3.0 xHCI specifications]
  
 
[[Category:Documentation]]
 
[[Category:Documentation]]
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[[Category:ReactOS Components]]

Latest revision as of 07:59, 29 December 2019

The USB stack is the component that provides the communication between USB devices and their respective drivers and applications. It consists of multiple files, each with a distinct function. The USB stack in ReactOS is currently limited. This page documents the development of the new USB stack. Development work on a USB 3 stack is in progress.

NOTE: There is a known issue with booting ReactOS from the internal HDD with a USB storage device connected which causes ROS to lose the boot device. Until this problem is fixed or a workaround is developed, please unplug any USB storage devices during boot!

Overview

The goal is to develop a USB stack which:

  • is USB 1.1 – 2.0 compliant
  • uses WDM (NT 5) API
  • is compatible with all USB devices and drivers (which adhere to the standard)

The entire stack will be fully documented and the implementation progress detailed on this page.

Goals

  • Primary Goal: USBHID (human input devices) and storage functionality working (Alpha).
  • Secondary Goal: Audio and other support added.
  • Beyond: testing and debugging.

Due to the complexity and size, no release dates will be provided as of now.

Status

USB Core Status

  • There are 2 USB specifications for the USB 1.1 standard. Devices that are used in this standard are mice, keyboards, etc.
    • OHCI (Open Host Controller Interface Standard) – All transfers types are implemented (bulk, iso, control, interrupt)
    • UHCI (Universal Host Controller Interface Standard) – Totally missing. Though it should be do-able to use OHCI driver as a base and use Haiku driver
  • EHCI (Enhanced Host Controller Interface) – Implemented transfer types: bulk & control. Interrupt & Isochronous transfers are not implemented. Due to the missing transfer types, devices who utilize those transfer types will not be available.
  • USBHUB – driver for managing port and hubs – Implementation state is unknown – Michel Martin has more information on that

USB Mass Storage Support Status

USB Mass Storage is implemented in USBSTOR driver and is fully working. Tested in WinXP + USBEHCI + USBSTOR. Mass storage support requires bulk and control transfers, which are implemented in USBEHCI.

HID Status

The HID framework is built on 5 drivers

  • HIDUSB – this is the interface driver for the USB bus. Currently supported devices are mice. Basic keyboard support should also work currently.
  • HIDCLASS – this is the class driver for HIDUSB and others. Functionality for mice & keyboard is implemented, though support for sending output reports is not implemented.
  • MOUHID – mouse function driver for USB hid standard – Fully implemented and working.
  • KBDHID – keyboard function driver for the hid standard – 90% implemented, needs KbdHid_InsertScanCodes implemented for keyboard scan code dispatching to kbdclass and led status indicator support (which requires sending output reports).
  • HIDPARSE – driver for parsing report descriptors – functionality implemented for mice, keyboard support needs HidParser_TranslateUsage fully implemented for modifier state (caps lock, num lock, scroll lock).

What already works

  • Mouse support has been tested in WinXP with ReactOS USBOHCI + HIDUSB + HIDCLASS + MOUHID + HIDPARSE and is working. The USB + HID stack also works in ReactOS.
  • Basic Keyboard support is nearly ready.
  • USB Mass storage support – Needs mountmgr / partmgr driver implemented. Will also need mountvol and other missing PnP stuff. - needs a few more issues to be resolved

See Also

References