Changeset 5410c04 in mainline for uspace/lib/usb/src/pipesinit.c

Timestamp:

2011-04-09T16:11:41Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

a9d67aa, c6394aa

Parents:

8e8b84f (diff), 7b715892 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Automatic pipe sessions

It is no longer necessary to start sessions on USB pipes manually.
Actually, the original functions usb_pipe_start/end_session are now
deprecated.

For sporadic transfers, you do not need to care about sessions at all.
For longer transfers, you may hint the library about it by calling
usb_pipe_start_long_transfer.

File:

• uspace/lib/usb/src/pipesinit.c (modified) (3 diffs)

uspace/lib/usb/src/pipesinit.c

@@ -356 +356 @@
         assert(connection);
 
+        fibril_mutex_initialize(&pipe->guard);
         pipe->wire = connection;
         pipe->hc_phone = -1;
+        fibril_mutex_initialize(&pipe->hc_phone_mutex);
         pipe->endpoint_no = endpoint_no;
         pipe->transfer_type = transfer_type;
         pipe->max_packet_size = max_packet_size;
         pipe->direction = direction;
+        pipe->refcount = 0;
 
         return EOK;
@@ -413 +416 @@
         int rc;
 
-        TRY_LOOP(failed_attempts) {
-                rc = usb_pipe_start_session(pipe);
-                if (rc == EOK) {
-                        break;
-                }
-        }
+        rc = usb_pipe_start_long_transfer(pipe);
         if (rc != EOK) {
                 return rc;
@@ -439 +437 @@
                 }
         }
-        usb_pipe_end_session(pipe);
+        usb_pipe_end_long_transfer(pipe);
         if (rc != EOK) {
                 return rc;