Changeset 5dfb70c9 in mainline for uspace/drv/bus/usb/uhci/transfer_list.c

Timestamp:

2017-12-29T12:10:56Z (6 years ago)

Author:

Petr Manek <petr.manek@…>

Branches:

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

Children:

5c75456

Parents:

415c5116

Message:

uhci: moved offline call from usbhost, terminating hanging transfers

File:

• uspace/drv/bus/usb/uhci/transfer_list.c (modified) (1 diff)

uspace/drv/bus/usb/uhci/transfer_list.c

@@ -202 +202 @@
 }
 
+/** Walk the list and finish all batches of a specified device with EINTR.
+ *
+ * @param[in] instance List to use.
+ * @param[in] address Address of the specified device. Other addresses are skipped.
+ */
+void transfer_list_abort_device(transfer_list_t *instance, usb_address_t address)
+{
+        fibril_mutex_lock(&instance->guard);
+        link_t *current = list_first(&instance->batch_list);
+        while (current && current != &instance->batch_list.head && !list_empty(&instance->batch_list)) {
+                link_t * const next = current->next;
+                uhci_transfer_batch_t *batch =
+                    uhci_transfer_batch_from_link(current);
+
+                if (batch->base.target.address == address) {
+                        transfer_list_remove_batch(instance, batch);
+                        endpoint_abort(batch->base.ep);
+                }
+
+                current = next;
+        }
+        fibril_mutex_unlock(&instance->guard);
+}
+
 /** Remove a transfer batch from the list and queue.
  *