Commit Graph

5 Commits

Author SHA1 Message Date
John Baldwin
f36511e7f8 Use pause() rather than using tsleep() on a dummy variable. 2007-02-27 17:19:33 +00:00
Warner Losh
2deae8fa2f More removing compatibility macros.
md5 still the same.

"Dave, stop.  I feel my mind slipping away." -- hal
2006-09-07 00:06:42 +00:00
Ian Dowse
368030a87a Use the limited scatter-gather capabilities of ehci, ohci and uhci
host controllers to avoid the need to allocate any multi-page
physically contiguous memory blocks. This makes it possible to use
USB devices reliably on low-memory systems or when memory is too
fragmented for contiguous allocations to succeed.

The USB subsystem now uses bus_dmamap_load() directly on the buffers
supplied by USB peripheral drivers, so this also avoids having to
copy data back and forth before and after transfers. The ehci and
ohci controllers support scatter/gather as long as the buffer is
contiguous in the virtual address space. For uhci the hardware
cannot handle a physical address discontinuity within a USB packet,
so it is necessary to copy small memory fragments at times.
2006-05-28 05:27:09 +00:00
Ruslan Ermilov
3238c6bd33 Fix -Wundef from compiling the amd64 LINT. 2005-12-04 10:06:06 +00:00
Takanori Watanabe
39e5901ee7 Add SL811 based host controller driver for CF usb host controller.
This is based on NetBSD slhci(4) driver for X68k amateur hardware.
For now, it will not work properly, but it can detect usb device
insertion.
2005-07-14 15:57:01 +00:00