Changeset 35c37fc in mainline for uspace/lib/usbhost/include/usb/host/dma_buffer.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/lib/usbhost/include/usb/host/dma_buffer.h (modified) (1 diff)

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

@@ -60 +60 @@
 extern int dma_buffer_alloc_policy(dma_buffer_t *, size_t, dma_policy_t);
 extern void dma_buffer_free(dma_buffer_t *);
+extern uintptr_t dma_buffer_phys(const dma_buffer_t *, void *);
 
 static inline int dma_buffer_is_set(dma_buffer_t *db)