Changeset f8e8738 in mainline for uspace/lib/usb/src/hub.c

Timestamp:

2011-04-07T20:22:40Z (14 years ago)

Author:

Lubos Slovak <lubos.slovak@…>

Branches:

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

Children:

fee6381

Parents:

61257f4 (diff), a82889e (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:

Changes from development

File:

• uspace/lib/usb/src/hub.c (modified) (6 diffs)

uspace/lib/usb/src/hub.c

@@ -142 +142 @@
             DEV_IFACE_ID(USBHC_DEV_IFACE),
             IPC_M_USBHC_RELEASE_ADDRESS, address);
+}
+
+static void unregister_control_endpoint_on_default_address(
+    usb_hc_connection_t *connection)
+{
+        usb_device_connection_t dev_conn;
+        int rc = usb_device_connection_initialize_on_default_address(&dev_conn,
+            connection);
+        if (rc != EOK) {
+                return;
+        }
+
+        usb_pipe_t ctrl_pipe;
+        rc = usb_pipe_initialize_default_control(&ctrl_pipe, &dev_conn);
+        if (rc != EOK) {
+                return;
+        }
+
+        usb_pipe_unregister(&ctrl_pipe, connection);
 }
 
@@ -235 +254 @@
                 goto leave_release_default_address;
         }
+
+        /* Before sending any traffic, we need to register this
+         * endpoint.
+         */
+        rc = usb_pipe_register(&ctrl_pipe, 0, connection);
+        if (rc != EOK) {
+                rc = EREFUSED;
+                goto leave_release_default_address;
+        }
         rc = usb_pipe_probe_default_control(&ctrl_pipe);
         if (rc != EOK) {
@@ -244 +272 @@
         if (rc != EOK) {
                 rc = ENOTCONN;
-                goto leave_release_default_address;
+                goto leave_unregister_endpoint;
         }
 
@@ -256 +284 @@
 
         /*
+         * Register the control endpoint for the new device.
+         */
+        rc = usb_pipe_register(&ctrl_pipe, 0, connection);
+        if (rc != EOK) {
+                rc = EREFUSED;
+                goto leave_unregister_endpoint;
+        }
+
+        /*
+         * Release the original endpoint.
+         */
+        unregister_control_endpoint_on_default_address(connection);
+
+        /*
          * Once the address is changed, we can return the default address.
          */
         usb_hc_release_default_address(connection);
+
 
         /*
@@ -273 +316 @@
         }
 
+
+
         /*
          * And now inform the host controller about the handle.
@@ -308 +353 @@
         usb_pipe_end_session(&ctrl_pipe);
 
+leave_unregister_endpoint:
+        usb_pipe_unregister(&ctrl_pipe, connection);
+
 leave_release_default_address:
         usb_hc_release_default_address(connection);