Changeset ad86349 in mainline for uspace/drv/ohci/hw_struct

Timestamp:

2011-04-15T15:14:35Z (15 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

a13ed97

Parents:

27eb1fe

Message:

Support short packets in OHCI

Location:

uspace/drv/ohci/hw_struct

Files:

• transfer_descriptor.c (modified) (1 diff)
• transfer_descriptor.h (modified) (2 diffs)

uspace/drv/ohci/hw_struct/transfer_descriptor.c

@@ -52 +52 @@
                 instance->status |= togg[toggle] << TD_STATUS_T_SHIFT;
         }
+        if (dir == USB_DIRECTION_IN) {
+                instance->status |= TD_STATUS_ROUND_FLAG;
+        }
         if (buffer != NULL) {
                 assert(size != 0);

uspace/drv/ohci/hw_struct/transfer_descriptor.h

@@ -59 +59 @@
 #define TD_STATUS_T_0 (0x2)
 #define TD_STATUS_T_1 (0x3)
+#define TD_STATUS_T_ED (0)
 #define TD_STATUS_EC_MASK (0x3) /* error count */
 #define TD_STATUS_EC_SHIFT (26)
@@ -102 +103 @@
         return cc_to_rc(cc);
 }
+
+static inline size_t td_remain_size(td_t *instance)
+{
+        assert(instance);
+        if (instance->cbp == 0)
+                return 0;
+        return instance->be - instance->cbp + 1;
+}
 #endif
 /**