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306 lines
8.5 KiB
306 lines
8.5 KiB
/**************************************************************************** |
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* examples/wlan/wlan_main.c |
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* |
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* Copyright (C) 2011 Gregory Nutt. All rights reserved. |
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* Authors: Gregory Nutt <gnutt@nuttx.org> |
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* Rafael Noronha <rafael@pdsolucoes.com.br> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <sys/ioctl.h> |
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#include <stdint.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <time.h> |
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#include <sched.h> |
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#include <errno.h> |
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#include <debug.h> |
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#include <nuttx/usb/usbhost.h> |
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#include <net/if.h> |
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#include <nuttx/net/uip/uip.h> |
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#include <nuttx/net/uip/uip-arp.h> |
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#include <apps/netutils/uiplib.h> |
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/* DHCPC may be used in conjunction with any other feature (or not) */ |
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#ifdef CONFIG_EXAMPLE_WLAN_DHCPC |
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# include <arpa/inet.h> |
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# include <apps/netutils/resolv.h> |
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# include <apps/netutils/dhcpc.h> |
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#endif |
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/**************************************************************************** |
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* Definitions |
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****************************************************************************/ |
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/* Configuration ************************************************************/ |
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/* Sanity checking */ |
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#ifndef CONFIG_USBHOST |
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# error "CONFIG_USBHOST is not defined" |
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#endif |
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#ifdef CONFIG_USBHOST_BULK_DISABLE |
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# error "Bulk endpoints are disabled (CONFIG_USBHOST_BULK_DISABLE)" |
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#endif |
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#ifndef CONFIG_NFILE_DESCRIPTORS |
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# error "CONFIG_NFILE_DESCRIPTORS > 0 needed" |
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#endif |
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/* Provide some default values for other configuration settings */ |
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#ifndef CONFIG_EXAMPLES_WLAN_DEFPRIO |
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# define CONFIG_EXAMPLES_WLAN_DEFPRIO 50 |
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#endif |
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#ifndef CONFIG_EXAMPLES_WLAN_STACKSIZE |
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# define CONFIG_EXAMPLES_WLAN_STACKSIZE 1024 |
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#endif |
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#ifndef CONFIG_EXAMPLES_WLAN_DEVNAME |
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# define CONFIG_EXAMPLES_WLAN_DEVNAME "wlan0" |
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#endif |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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static struct usbhost_driver_s *g_drvr; |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: wlan_bringup |
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* |
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* Description: |
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* Wait for USB devices to be connected. |
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* |
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****************************************************************************/ |
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static inline void wlan_bringup(void) |
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{ |
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#if defined(CONFIG_EXAMPLE_WLAN_DHCPC) || defined(CONFIG_EXAMPLE_WLAN_NOMAC) |
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uint8_t mac[IFHWADDRLEN]; |
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#endif |
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struct in_addr addr; |
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#ifdef CONFIG_EXAMPLE_WLAN_DHCPC |
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void *handle; |
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#endif |
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/* Many embedded network interfaces must have a software assigned |
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* MAC |
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*/ |
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#ifdef CONFIG_EXAMPLE_WLAN_NOMAC |
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mac[0] = 0x00; |
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mac[1] = 0xe0; |
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mac[2] = 0xde; |
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mac[3] = 0xad; |
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mac[4] = 0xbe; |
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mac[5] = 0xef; |
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uip_setmacaddr("eth0", mac); |
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#endif |
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/* Set up the default router address */ |
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addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_DRIPADDR); |
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uip_setdraddr("eth0", &addr); |
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/* Setup the subnet mask */ |
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addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_NETMASK); |
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uip_setnetmask("eth0", &addr); |
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/* Set up our host address */ |
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#ifdef CONFIG_EXAMPLE_WLAN_DHCPC |
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addr.s_addr = 0; |
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#else |
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addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_IPADDR); |
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#endif |
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uip_sethostaddr("eth0", &addr); |
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#ifdef CONFIG_EXAMPLE_WLAN_DHCPC |
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/* Set up the resolver */ |
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resolv_init(); |
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/* Get the MAC address of the NIC */ |
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uip_getmacaddr("eth0", mac); |
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/* Set up the DHCPC modules */ |
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handle = dhcpc_open(&mac, IFHWADDRLEN); |
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/* Get an IP address. Note: there is no logic here for renewing |
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* the address in this example. The address should be renewed in |
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* ds.lease_time/2 seconds. |
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*/ |
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printf("Getting IP address\n"); |
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if (handle) |
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{ |
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struct dhcpc_state ds; |
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(void)dhcpc_request(handle, &ds); |
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uip_sethostaddr("eth1", &ds.ipaddr); |
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if (ds.netmask.s_addr != 0) |
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{ |
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uip_setnetmask("eth0", &ds.netmask); |
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} |
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if (ds.default_router.s_addr != 0) |
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{ |
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uip_setdraddr("eth0", &ds.default_router); |
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} |
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if (ds.dnsaddr.s_addr != 0) |
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{ |
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resolv_conf(&ds.dnsaddr); |
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} |
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dhcpc_close(handle); |
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printf("IP: %s\n", inet_ntoa(ds.ipaddr)); |
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} |
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#endif |
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} |
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/**************************************************************************** |
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* Name: wlan_waiter |
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* |
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* Description: |
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* Wait for USB devices to be connected. |
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* |
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****************************************************************************/ |
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static int wlan_waiter(int argc, char *argv[]) |
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{ |
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bool connected = false; |
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int ret; |
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printf("wlan_waiter: Running\n"); |
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for (;;) |
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{ |
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/* Wait for the device to change state */ |
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ret = DRVR_WAIT(g_drvr, connected); |
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DEBUGASSERT(ret == OK); |
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connected = !connected; |
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printf("wlan_waiter: %s\n", connected ? "connected" : "disconnected"); |
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/* Did we just become connected? */ |
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if (connected) |
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{ |
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/* Yes.. enumerate the newly connected device */ |
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ret = DRVR_ENUMERATE(g_drvr); |
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/* If the enumeration was successful, then bring up the interface */ |
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wlan_bringup(); |
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} |
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} |
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/* Keep the compiler from complaining */ |
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return 0; |
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} |
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/**************************************************************************** |
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* Name: wlan_main |
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****************************************************************************/ |
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int wlan_main(int argc, char *argv[]) |
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{ |
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pid_t pid; |
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int ret; |
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/* First, register all of the USB host Wireless LAN drivers */ |
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printf("wlan_main: Register drivers\n"); |
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ret = usbhost_wlaninit(); |
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if (ret != OK) |
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{ |
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printf("wlan_main: Failed to register the WLAN driver\n"); |
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} |
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/* Then get an instance of the USB host interface */ |
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printf("wlan_main: Initialize USB host WLAN driver\n"); |
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g_drvr = usbhost_initialize(0); |
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if (g_drvr) |
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{ |
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/* Start a thread to handle device connection. */ |
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printf("wlan_main: Start wlan_waiter\n"); |
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#ifndef CONFIG_CUSTOM_STACK |
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pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO, |
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CONFIG_EXAMPLES_WLAN_STACKSIZE, |
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(main_t)wlan_waiter, (const char **)NULL); |
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#else |
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pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO, |
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(main_t)wlan_waiter, (const char **)NULL); |
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#endif |
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/* Now just sleep. Eventually logic here will perform the device test. */ |
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for (;;) |
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{ |
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sleep(5); |
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printf("usert_start: Still alive\n"); |
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} |
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} |
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return 0; |
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}
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