From 1d8f60792331e913c6c4cd3bf3d6b785359778ee Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Sat, 21 May 2011 18:25:31 +0000
Subject: Add E1000 PIC NIC driver from Yu Qiang

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3638 42af7a65-404d-4744-a932-0658087f49c3
---
 apps/nshlib/nsh_netcmds.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 42 insertions(+), 2 deletions(-)

(limited to 'apps/nshlib/nsh_netcmds.c')

diff --git a/apps/nshlib/nsh_netcmds.c b/apps/nshlib/nsh_netcmds.c
index 1bd1e93e4..6e210c020 100644
--- a/apps/nshlib/nsh_netcmds.c
+++ b/apps/nshlib/nsh_netcmds.c
@@ -466,8 +466,48 @@ int cmd_get(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 #ifndef CONFIG_NSH_DISABLE_IFCONFIG
 int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 {
-  netdev_foreach(ifconfig_callback, vtbl);
-  uip_statistics(vtbl);
+  struct in_addr addr;
+  in_addr_t ip;
+
+  /* With one or no arguments, ifconfig simply shows the status of ethernet
+   * device:
+   *
+   *   ifconfig
+   *   ifconfig [nic_name]
+   */
+
+  if (argc <= 2)
+    {
+	  netdev_foreach(ifconfig_callback, vtbl);
+	  uip_statistics(vtbl);
+	  return OK;
+    }
+
+  /* If both the network interface name and an IP address are supplied as
+   * arguments, then ifconfig will set the address of the ethernet device:
+   *
+   *    ifconfig nic_name ip_address
+   */
+
+  /* Set host ip address */
+
+  ip = addr.s_addr = inet_addr(argv[2]);
+  uip_sethostaddr(argv[1], &addr);
+
+  /* Set gateway */
+
+  ip = NTOHL(ip);
+  ip &= ~0x000000ff;
+  ip |= 0x00000001;
+
+  addr.s_addr = HTONL(ip);
+  uip_setdraddr(argv[1], &addr);
+
+  /* Set netmask */
+
+  addr.s_addr = inet_addr("255.255.255.0");
+  uip_setnetmask(argv[1], &addr);
+
   return OK;
 }
 #endif
-- 
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