Changeset 35c37fc in mainline for uspace/drv/bus/usb/ehci/hc.h

Timestamp:

2018-01-05T20:15:08Z (6 years ago)

Author:

Ondřej Hlavatý <aearsis@…>

Branches:

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

Children:

9e5b162

Parents:

b60944b

git-author:

Ondřej Hlavatý <aearsis@…> (2018-01-05 16:11:04)

git-committer:

Ondřej Hlavatý <aearsis@…> (2018-01-05 20:15:08)

Message:

ehci: refactor to dma_buffers

One big hidden thing was refactored - now TDs are allocated in one
buffer together with setup and data buffers themselves. This reduces the
number of allocated pages per transfer to minimum.

File:

• uspace/drv/bus/usb/ehci/hc.h (modified) (1 diff)

uspace/drv/bus/usb/ehci/hc.h

@@ -63 +63 @@
         ehci_regs_t *registers;
 
-        /** Iso transfer list */
-        link_pointer_t *periodic_list_base;
+        /** Iso transfer list, backed by dma_buffer */
+        link_pointer_t *periodic_list;
+
+        dma_buffer_t dma_buffer;
 
         /** CONTROL and BULK schedules */