Changeset 70d72dd in mainline for uspace/drv/bus/usb/ohci/hw_struct/endpoint_descriptor.h

Timestamp:

2011-10-16T14:24:05Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

d5abaf4

Parents:

9515f674

Message:

ohci: OHCI TD routines refactoring.

Merge td_set_next to td_init: td list is built during initialization.
Add doxygen and other comments.
Add ed_inactive and ed_transfer_pending routines, these will be used later.

File:

• uspace/drv/bus/usb/ohci/hw_struct/endpoint_descriptor.h (modified) (1 diff)

uspace/drv/bus/usb/ohci/hw_struct/endpoint_descriptor.h

@@ -109 +109 @@
 
 /**
+ * Check for SKIP or HALTED flag being set.
+ * @param instance ED
+ * @return true if either SKIP or HALTED flag is set, false otherwise.
+ */
+static inline bool ed_inactive(const ed_t *instance)
+{
+        assert(instance);
+        return (instance->td_head & ED_TDHEAD_HALTED_FLAG)
+            || (instance->status & ED_STATUS_K_FLAG);
+}
+
+/**
+ * Check whether this ED contains TD to be executed.
+ * @param instance ED
+ * @return true if there are pending TDs, false otherwise.
+ */
+static inline bool ed_transfer_pending(const ed_t *instance)
+{
+        assert(instance);
+        return (instance->td_head & ED_TDHEAD_PTR_MASK)
+            != (instance->td_tail & ED_TDTAIL_PTR_MASK);
+}
+
+/**
  * Set the last element of TD list
  * @param instance ED