1 files changed, 159 insertions, 0 deletions
diff --git a/nuttx/net/netdev_unregister.c b/nuttx/net/netdev_unregister.c
new file mode 100644
index 000000000..e1aec0e4d
--- /dev/null
+++ b/nuttx/net/netdev_unregister.c
@@ -0,0 +1,159 @@
+/****************************************************************************
+ * net/netdev_unregister.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
+
+#include <sys/socket.h>
+#include <stdio.h>
+#include <semaphore.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <nuttx/net/uip/uip-arch.h>
+
+#include "net_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_NET_SLIP
+#  define NETDEV_FORMAT "sl%d"
+#else
+#  define NETDEV_FORMAT "eth%d"
+#endif
+
+/****************************************************************************
+ * Priviate Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: netdev_unregister
+ *
+ * Description:
+ *   Unregister a network device driver.
+ *
+ * Parameters:
+ *   dev - The device driver structure to un-register
+ *
+ * Returned Value:
+ *   0:Success; negated errno on failure
+ *
+ * Assumptions:
+ *   Currently only called for USB networking devices when the device is
+ *   physically removed from the slot
+ *
+ ****************************************************************************/
+
+int netdev_unregister(FAR struct uip_driver_s *dev)
+{
+  struct uip_driver_s *prev;
+  struct uip_driver_s *curr;
+
+  if (dev)
+    {
+      netdev_semtake();
+
+      /* Find the device in the list of known network devices */
+
+      for (prev = NULL, curr = g_netdevices;
+           curr && curr != dev;
+           prev = curr, curr = curr->flink);
+
+      /* Remove the device to the list of known network devices */
+
+      if (curr)
+        {
+          /* Where was the entry */
+
+          if (prev)
+            {
+              /* The entry was in the middle or at the end of the list */
+
+              prev->flink = curr->flink;
+            }
+          else
+            {
+               /* The entry was at the beginning of the list */
+
+               g_netdevices = curr;
+            }
+
+          curr->flink = NULL;
+        }
+
+      netdev_semgive();
+
+#ifdef CONFIG_NET_ETHERNET
+      nlldbg("Unregistered MAC: %02x:%02x:%02x:%02x:%02x:%02x as dev: %s\n",
+             dev->d_mac.ether_addr_octet[0], dev->d_mac.ether_addr_octet[1],
+             dev->d_mac.ether_addr_octet[2], dev->d_mac.ether_addr_octet[3],
+             dev->d_mac.ether_addr_octet[4], dev->d_mac.ether_addr_octet[5],
+             dev->d_ifname);
+#else
+      nlldbg("Registered dev: %s\n", dev->d_ifname);
+#endif
+      return OK;
+    }
+
+  return -EINVAL;
+}
+
+#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */