Changeset df6ded8 in mainline for uspace/lib/c/include/bitops.h

Timestamp:

2018-02-28T16:37:50Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1b20da0

Parents:

f5e5f73 (diff), b2dca8de (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

git-author:

Jakub Jermar <jakub@…> (2018-02-28 16:06:42)

git-committer:

Jakub Jermar <jakub@…> (2018-02-28 16:37:50)

Message:

Merge github.com:helenos-xhci-team/helenos

This commit merges support for USB 3 and generally refactors, fixes,
extends and cleans up the existing USB framework.

Notable additions and features:

• new host controller driver has been implemented to control various xHC models (among others, NEC Renesas uPD720200)
• isochronous data transfer mode
• support for explicit USB device removal
• USB tablet driver

File:

• uspace/lib/c/include/bitops.h (modified) (1 diff)

uspace/lib/c/include/bitops.h

@@ -54 +54 @@
 #define BIT_RANGE_EXTRACT(type, hi, lo, value) \
     (((value) >> (lo)) & BIT_RRANGE(type, (hi) - (lo) + 1))
+
+/** Insert @a value between bits @a hi .. @a lo. */
+#define BIT_RANGE_INSERT(type, hi, lo, value) \
+    (((value) & BIT_RRANGE(type, (hi) - (lo) + 1)) << (lo))
 
 /** Return position of first non-zero bit from left (i.e. [log_2(arg)]).