main.cpp

00001 // Written by IVA2K
00002 //
00003 // Example of HTTPServer with additional features:
00004 // * Link status indication (LED4)
00005 // * Local file system (create index.htm page on MBED!)
00006 // * RPC-able class (myrpc, allows remote function call that blinks LED1 N times)
00007 //
00008 // Instructions:
00009 // 1  Plug MBED into BoB2 (or other ETH connector breakout)
00010 // 2  Plug ETH connector into your network (needs DHCP to get IP address)
00011 // 3  Power up MBED using USB cable
00012 // 4  Install MBED serial driver (http://mbed.org/handbook/SerialPC)
00013 // 5  Copy compiled .bin to your MBED (make sure target device selected in the compiler is correct)
00014 // 6  Open terminal on the mbed serial port
00015 // 7  Push MBED reset button
00016 // 8  Terminal will display info message with mac address, followed by IP address (if connection succeeds)
00017 // 9  Open browser and enter the following URL, inserting your MBED's IP address:
00018 //    http://10.0.0.321/rpc/myrpc1/blink,10 (instead of 10.0.0.321 use MBED IP address from terminal)
00019 // 10 MBED will blink the LED 10 times
00020 //
00021 // Notes: there are still some bugs in HTTPServer code. 
00022 // To help fight some of them, copy a valid favicon.ico (a 16x16 icon) file to MBED.
00023 //
00024 
00025 #include "mbed.h"
00026 #include "HTTPServer.h"
00027 #include "HTTPRPC.h"
00028 #include "HTTPFS.h"
00029 #include "myrpc.h"
00030 
00031 DigitalOut led1(LED1, "led1");
00032 DigitalOut led2(LED2, "led2");
00033 DigitalOut led3(LED3, "led3");
00034 DigitalOut led4(LED4, "led4");
00035 LocalFileSystem local("local");
00036 myrpc myrpc1(LED1, "myrpc1");
00037 
00038 extern Ethernet eth;        // eth is defined elsewhere, avoid compiler error.
00039 Serial pc(USBTX, USBRX);
00040 Ticker eth_timer;
00041 
00042 #define LED_ETH_LINK(val) do { led4=val; } while (0)
00043 void eth_link_status() {
00044     static bool first = true;        // Avoid duplicate IP report on the very first pass
00045     static int eth_link = -1;        // Last state of eth link
00046     int new_link = eth.link();
00047     if (eth_link != new_link) {
00048         if (new_link) {
00049             // From http://mbed.org/forum/post/909/
00050             NetServer *net = NetServer::get();
00051             struct ip_addr ip = net->getIPAddr();
00052 //            struct ip_addr gw = net->getGateway();
00053 //            struct ip_addr nm = net->getNetmask();
00054 //            struct ip_addr dns = net->getDNS1();
00055             if (!first) printf("IP: %hhu.%hhu.%hhu.%hhu\r\n", (ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF);
00056             first = false;
00057         }
00058         else {
00059             printf("IP: <link down>\r\n");
00060         }
00061         LED_ETH_LINK(new_link);
00062         eth_link = new_link;
00063     }
00064 }
00065 
00066 int main(void) {
00067     char mac[6];
00068 
00069     led1=1;
00070     led2=1;
00071     led3=1;
00072     led4=1;
00073 
00074     char *hostname = "mbed";
00075     HTTPServer http(hostname);    // Use DHCP
00076     http.timeout(60000);
00077 
00078     eth.address(mac);
00079     pc.printf("\r\n\r\nMBED HTTPServer \"%s\" started\r\nMAC %02X:%02X:%02X:%02X:%02X:%02X\r\n",
00080         hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
00081 
00082     Base::add_rpc_class<AnalogIn>();
00083     Base::add_rpc_class<AnalogOut>();
00084     Base::add_rpc_class<DigitalIn>();
00085     Base::add_rpc_class<DigitalOut>();
00086     Base::add_rpc_class<PwmOut>();
00087     Base::add_rpc_class<Timer>();
00088     Base::add_rpc_class<SPI>();
00089     Base::add_rpc_class<BusOut>();
00090     Base::add_rpc_class<BusIn>();
00091     Base::add_rpc_class<myrpc>();
00092     led1=0;
00093 
00094     http.addHandler(new HTTPRPC());
00095     led2=0;
00096 
00097     http.addHandler(new HTTPFileSystemHandler("/", "/local/"));
00098     led3=0;
00099 
00100 // FIXME: BUG:: If eth is not plugged, http.bind() hangs for a while!
00101     http.bind();
00102     led4 = 0;
00103 
00104     pc.printf("\r");    // Add linefeed for stupid Hyperterminal
00105     eth_timer.attach(&eth_link_status, 0.1);
00106     while(1) {
00107         http.poll();    // Have to call this method at least every 250ms to let the http server run.
00108         wait(0.100);
00109     }
00110 }
00111 
00112 //END