Changeset 3de7a62 in mainline for uspace/drv/bus/usb/ehci/hw_struct/queue_head.h

Timestamp:

2014-01-24T01:24:58Z (10 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

4e732f1a

Parents:

a24d6825

Message:

ehci: Implement endpoint list append

File:

• uspace/drv/bus/usb/ehci/hw_struct/queue_head.h (modified) (2 diffs)

uspace/drv/bus/usb/ehci/hw_struct/queue_head.h

@@ -40 +40 @@
 
 #include "link_pointer.h"
+#include "mem_access.h"
 
 /** This structure is defined in EHCI design guide p. 46 */
@@ -140 +141 @@
 } qh_t;
 
+static inline void qh_append_qh(qh_t *qh, const qh_t *next)
+{
+        assert(qh);
+        assert(next);
+        const uint32_t pa = addr_to_phys(next);
+        assert((pa & LINK_POINTER_ADDRESS_MASK) == pa);
+        EHCI_MEM32_WR(qh->horizontal, LINK_POINTER_QH(pa));
+}
+
+static inline uintptr_t qh_next(const qh_t *qh)
+{
+        assert(qh);
+        return (qh->horizontal & LINK_POINTER_ADDRESS_MASK);
+}
+
 void qh_init(qh_t *instance, const endpoint_t *ep);
 #endif