opengnsys_ipxe/src
Michael Brown b418af26d9 [ehci] Support USB1 devices attached via transaction translators
Support low-speed and full-speed devices attached to a USB2 hub.  Such
devices use a transaction translator (TT) within the USB2 hub, which
asynchronously initiates transactions on the lower-speed bus and
returns the result via a split completion on the high-speed bus.

We make the simplifying assumption that there will never be more than
sixteen active interrupt endpoints behind a single transaction
translator; this assumption allows us to schedule all periodic start
splits in microframe 0 and all periodic split completions in
microframes 2 and 3.  (We do not handle isochronous endpoints.)

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2015-03-23 16:23:08 +00:00
..
arch [libprefix] Fix building on 64-bit FreeBSD 8.4 2015-03-23 13:28:59 +00:00
bin
config [ehci] Add support for EHCI host controllers 2015-03-18 12:35:17 +00:00
core [legal] Relicense files under GPL2_OR_LATER_OR_UBDL 2015-03-05 11:40:13 +00:00
crypto [build] Fix the REQUIRE_SYMBOL mechanism 2015-03-05 00:59:38 +00:00
doc
drivers [ehci] Support USB1 devices attached via transaction translators 2015-03-23 16:23:08 +00:00
hci [legal] Relicense files under GPL2_OR_LATER_OR_UBDL 2015-03-05 11:40:13 +00:00
image [legal] Relicense files under GPL2_OR_LATER_OR_UBDL 2015-03-02 16:35:29 +00:00
include [usb] Clear transaction translator buffers when applicable 2015-03-23 16:22:55 +00:00
interface
libgcc
net
tests [libc] Add ffs(), ffsl(), and ffsll() 2015-03-16 15:40:53 +00:00
usr
util
.gitignore
Makefile
Makefile.housekeeping
doxygen.cfg