diff options
Diffstat (limited to 'nuttx/net/netdev_register.c')
-rw-r--r-- | nuttx/net/netdev_register.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/nuttx/net/netdev_register.c b/nuttx/net/netdev_register.c new file mode 100644 index 000000000..31cf884e4 --- /dev/null +++ b/nuttx/net/netdev_register.c @@ -0,0 +1,149 @@ +/**************************************************************************** + * net/netdev_register.c + * + * Copyright (C) 2007-2012 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 + ****************************************************************************/ + +static int g_next_devnum = 0; + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/* List of registered ethernet device drivers */ + +struct uip_driver_s *g_netdevices = NULL; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: netdev_register + * + * Description: + * Register a network device driver and assign a name to it so tht it can + * be found in subsequent network ioctl operations on the device. + * + * Parameters: + * dev - The device driver structure to register + * + * Returned Value: + * 0:Success; negated errno on failure + * + * Assumptions: + * Called during system initialization from normal user mode + * + ****************************************************************************/ + +int netdev_register(FAR struct uip_driver_s *dev) +{ + if (dev) + { + int devnum; + netdev_semtake(); + + /* Assign a device name to the interface */ + + devnum = g_next_devnum++; + snprintf(dev->d_ifname, IFNAMSIZ, NETDEV_FORMAT, devnum ); + + /* Add the device to the list of known network devices */ + + dev->flink = g_netdevices; + g_netdevices = dev; + + /* Configure the device for IGMP support */ + +#ifdef CONFIG_NET_IGMP + uip_igmpdevinit(dev); +#endif + netdev_semgive(); + +#ifdef CONFIG_NET_ETHERNET + nlldbg("Registered 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 */ |