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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
commit | 57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff (patch) | |
tree | 25d07d14e920d31c0b1947c9ca586f2a01fc32d8 /nuttx/net/netdev_unregister.c | |
download | px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.gz px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.bz2 px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.zip |
Resync new repository with old repo r5166
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/net/netdev_unregister.c')
-rw-r--r-- | nuttx/net/netdev_unregister.c | 159 |
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..39927340a --- /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 <gnutt@nuttx.org> + * + * 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 */ |