Commit Graph

7 Commits

Author SHA1 Message Date
Volker Ruppert
c3b608a3c9 Implemented USB remote wakeup mechanism.
- Extended USB callback definition to support different event types sent from
  device to HC. Currently we only have the two events "async completion" and
  "remote wakeup".
- Implemented event handlers in the UHCI, OHCI and EHCI. For the EHCI version
  we currently have no test case.
- The external USB hub now uses this feature at device connect/disconnect.
  Now the device change on the hub is correctly detected by the guest OS.
- TODO #1: remote wakeup and async completion for the xHCI.
- TODO #2: event handler for the external hub to make a USB device work on
  a chain of hubs.
- TODO #3: the event handler possibly could be used for the packet copy code.
2016-12-10 13:45:49 +00:00
Volker Ruppert
3fd323abc5 USB xHCI endianness and warning fixes
- use get_dwords() and put_dwords() from EHCI sources for reading / writing
  xHCI data structures as dword array. This fixes some endianness issues.
- simplified copying data from / to data structures since we can now use the
  dword array with the correct byte order directly.
- fixed all remaining "strict-aliasing" GCC warnings.
2016-12-04 18:54:51 +00:00
Volker Ruppert
ff3b20be1a Minor changes and comment additions in the EHCI emulation code.
- Added missing queue handling code for init, reset and device disconnect.
- Added EHCI status access methods for async and periodic state.
- Added a lot of comments (mostly from the original EHCI core code).
2016-11-27 09:19:55 +00:00
Volker Ruppert
0192554c25 Started rewrite of USB packet handling required for full async packet support.
Step #1: Allocate buffer for data transfers dynamicly with the required size
(done in UHCI, OHCI and EHCI).
2016-11-18 21:27:43 +00:00
Volker Ruppert
6ba530e461 Ported most of the remaining EHCI methods to Bochs, including some ugly hacks.
Asynchronous transfers are not yet working properly (tested with USB disk device
in high speed mode). That's why the support for "speed:high" is still disabled.
Since we have no test case for the isosynchronous mode, I have not yet ported
the main code for it.
2016-11-07 21:57:56 +00:00
Volker Ruppert
ce7afe050f Applied current state of porting EHCI from Qemu. No functional changes yet. 2016-02-09 17:11:59 +00:00
Volker Ruppert
0ba744b9fe Started implementing USB EHCI support. The PCI and MMIO register behaviour is
almost implemented, the port owner handling and the UHCI companion controllers
are present. High speed devices are not yet supported, since the EHCI scheduler
code has not been written yet (e.g. porting from Qemu). Low and full speed
devices should be detected correctly and work after port ownership change to
UHCI. 6 ports are available and the bochsrc syntax is similar to other HCs.
2015-12-06 20:03:42 +00:00