Changeset ecbad17 in mainline for uspace/lib/usbhost/include/usb/host/bandwidth.h

Timestamp:

2018-01-07T17:13:57Z (7 years ago)

Author:

Ondřej Hlavatý <aearsis@…>

Branches:

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

Children:

eb928c4

Parents:

3dc3f99

git-author:

Ondřej Hlavatý <aearsis@…> (2018-01-07 17:12:35)

git-committer:

Ondřej Hlavatý <aearsis@…> (2018-01-07 17:13:57)

Message:

usbhost: Implemented bandwidth accounting for USB 2.0

File:

• uspace/lib/usbhost/include/usb/host/bandwidth.h (modified) (1 diff)

uspace/lib/usbhost/include/usb/host/bandwidth.h

@@ -44 +44 @@
 #define BANDWIDTH_TOTAL_USB11 (12000000 / 8)
 /** 90% of total bandwidth is available for periodic transfers */
-#define BANDWIDTH_AVAILABLE_USB11 ((BANDWIDTH_TOTAL_USB11 / 10) * 9)
+#define BANDWIDTH_AVAILABLE_USB11 ((BANDWIDTH_TOTAL_USB11 * 9) / 10)
 
-//TODO: Implement
-#define BANDWIDTH_AVAILABLE_USB20  1
+/** Number of nanoseconds in one microframe */
+#define BANDWIDTH_TOTAL_USB20 (125000)
+/** 90% of total bandwidth is available for periodic transfers */
+#define BANDWIDTH_AVAILABLE_USB20  ((BANDWIDTH_TOTAL_USB20 * 9) / 10)
 
 typedef struct endpoint endpoint_t;