/**************************************************************************** * examples/wlan/wlan_main.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Authors: Gregory Nutt * Rafael Noronha * * 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 Gregory Nutt 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* DHCPC may be used in conjunction with any other feature (or not) */ #ifdef CONFIG_EXAMPLE_WLAN_DHCPC # include # include # include #endif /**************************************************************************** * Definitions ****************************************************************************/ /* Configuration ************************************************************/ /* Sanity checking */ #ifndef CONFIG_USBHOST # error "CONFIG_USBHOST is not defined" #endif #ifdef CONFIG_USBHOST_BULK_DISABLE # error "Bulk endpoints are disabled (CONFIG_USBHOST_BULK_DISABLE)" #endif #ifndef CONFIG_NFILE_DESCRIPTORS # error "CONFIG_NFILE_DESCRIPTORS > 0 needed" #endif /* Provide some default values for other configuration settings */ #ifndef CONFIG_EXAMPLES_WLAN_DEFPRIO # define CONFIG_EXAMPLES_WLAN_DEFPRIO 50 #endif #ifndef CONFIG_EXAMPLES_WLAN_STACKSIZE # define CONFIG_EXAMPLES_WLAN_STACKSIZE 1024 #endif #ifndef CONFIG_EXAMPLES_WLAN_DEVNAME # define CONFIG_EXAMPLES_WLAN_DEVNAME "wlan0" #endif /**************************************************************************** * Private Types ****************************************************************************/ /**************************************************************************** * Private Data ****************************************************************************/ static struct usbhost_driver_s *g_drvr; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: wlan_bringup * * Description: * Wait for USB devices to be connected. * ****************************************************************************/ static inline void wlan_bringup(void) { #if defined(CONFIG_EXAMPLE_WLAN_DHCPC) || defined(CONFIG_EXAMPLE_WLAN_NOMAC) uint8_t mac[IFHWADDRLEN]; #endif struct in_addr addr; #ifdef CONFIG_EXAMPLE_WLAN_DHCPC void *handle; #endif /* Many embedded network interfaces must have a software assigned * MAC */ #ifdef CONFIG_EXAMPLE_WLAN_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xde; mac[3] = 0xad; mac[4] = 0xbe; mac[5] = 0xef; uip_setmacaddr("eth0", mac); #endif /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_DRIPADDR); uip_setdraddr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_NETMASK); uip_setnetmask("eth0", &addr); /* Set up our host address */ #ifdef CONFIG_EXAMPLE_WLAN_DHCPC addr.s_addr = 0; #else addr.s_addr = HTONL(CONFIG_EXAMPLE_WLAN_IPADDR); #endif uip_sethostaddr("eth0", &addr); #ifdef CONFIG_EXAMPLE_WLAN_DHCPC /* Set up the resolver */ resolv_init(); /* Get the MAC address of the NIC */ uip_getmacaddr("eth0", mac); /* Set up the DHCPC modules */ handle = dhcpc_open(&mac, IFHWADDRLEN); /* Get an IP address. Note: there is no logic here for renewing * the address in this example. The address should be renewed in * ds.lease_time/2 seconds. */ printf("Getting IP address\n"); if (handle) { struct dhcpc_state ds; (void)dhcpc_request(handle, &ds); uip_sethostaddr("eth1", &ds.ipaddr); if (ds.netmask.s_addr != 0) { uip_setnetmask("eth0", &ds.netmask); } if (ds.default_router.s_addr != 0) { uip_setdraddr("eth0", &ds.default_router); } if (ds.dnsaddr.s_addr != 0) { resolv_conf(&ds.dnsaddr); } dhcpc_close(handle); printf("IP: %s\n", inet_ntoa(ds.ipaddr)); } #endif } /**************************************************************************** * Name: wlan_waiter * * Description: * Wait for USB devices to be connected. * ****************************************************************************/ static int wlan_waiter(int argc, char *argv[]) { bool connected = false; int ret; printf("wlan_waiter: Running\n"); for (;;) { /* Wait for the device to change state */ ret = DRVR_WAIT(g_drvr, connected); DEBUGASSERT(ret == OK); connected = !connected; printf("wlan_waiter: %s\n", connected ? "connected" : "disconnected"); /* Did we just become connected? */ if (connected) { /* Yes.. enumerate the newly connected device */ ret = DRVR_ENUMERATE(g_drvr); /* If the enumeration was successful, then bring up the interface */ wlan_bringup(); } } /* Keep the compiler from complaining */ return 0; } /**************************************************************************** * Name: wlan_main ****************************************************************************/ int wlan_main(int argc, char *argv[]) { pid_t pid; int ret; /* First, register all of the USB host Wireless LAN drivers */ printf("wlan_main: Register drivers\n"); ret = usbhost_wlaninit(); if (ret != OK) { printf("wlan_main: Failed to register the WLAN driver\n"); } /* Then get an instance of the USB host interface */ printf("wlan_main: Initialize USB host WLAN driver\n"); g_drvr = usbhost_initialize(0); if (g_drvr) { /* Start a thread to handle device connection. */ printf("wlan_main: Start wlan_waiter\n"); #ifndef CONFIG_CUSTOM_STACK pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO, CONFIG_EXAMPLES_WLAN_STACKSIZE, (main_t)wlan_waiter, (const char **)NULL); #else pid = task_create("usbhost", CONFIG_EXAMPLES_WLAN_DEFPRIO, (main_t)wlan_waiter, (const char **)NULL); #endif /* Now just sleep. Eventually logic here will perform the device test. */ for (;;) { sleep(5); printf("usert_start: Still alive\n"); } } return 0; }