Changeset ad86349 in mainline

Timestamp:

2011-04-15T15:14:35Z (13 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

Files:

• batch.c (modified) (3 diffs)
• hw_struct/transfer_descriptor.c (modified) (1 diff)
• hw_struct/transfer_descriptor.h (modified) (2 diffs)

uspace/drv/ohci/batch.c

@@ -147 +147 @@
             data->ed->next);
         size_t i = 0;
+        instance->transfered_size = instance->buffer_size;
         for (; i < tds; ++i) {
                 assert(data->tds[i] != NULL);
@@ -156 +157 @@
                 }
                 instance->error = td_error(data->tds[i]);
-                /* FIXME: calculate real transfered size */
-                instance->transfered_size = instance->buffer_size;
                 if (instance->error != EOK) {
                         usb_log_debug("Batch(%p) found error TD(%d):%x.\n",
@@ -174 +173 @@
         assert(hcd_ep);
         hcd_ep->td = data->tds[i];
+        if (i > 0)
+                instance->transfered_size -= td_remain_size(data->tds[i - 1]);
+
         /* Clear possible ED HALT */
         data->ed->td_head &= ~ED_TDHEAD_HALTED_FLAG;

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
 /**