main.cpp

00001 /*
00002  * Websocket for GSwifi
00003  *
00004  *   mbed WebSocket server / GSwifi client
00005  *   html access http://sockets.mbed.org/ws/UserName/test/
00006  *
00007  *   GSwifi WebSocket server / other client
00008  *   GSwifi_conf.h: #define GS_USE_WEBSOCKET
00009  *   ws access ws://IP address/ws/hoge
00010  */
00011 
00012 #include "mbed.h"
00013 #include "GSwifi.h"
00014 
00015 #define PORT    80
00016 
00017 #define WS_HOST "sockets.mbed.org"
00018 #define WS_URI "/ws/UserName/test/rw"
00019 
00020 #define SECURE GSwifi::GSSEC_WPA_PSK
00021 #define SSID "SSID"
00022 #define PASS "PASSPHRASE"
00023 
00024 GSwifi gs(p13, p14, p20); // TX, RX, Reset (no flow control)
00025 //GSwifi gs(p13, p14, p12, P0_22, p20, NC, 115200); // TX, RX, CTS, RTS, Reset, Alarm
00026 
00027 LocalFileSystem local("local");
00028 Serial pc(USBTX, USBRX);
00029 DigitalOut led1(LED1), led2(LED2);
00030 
00031 void ws_server (int cid, GSwifi::GS_httpd *gshttpd) {
00032 
00033     pc.printf("WS_S %d: %s ? %s '%s' %d\r\n", cid, gshttpd->file, gshttpd->query, gshttpd->buf, gshttpd->len);
00034 
00035     gs.wsSend(cid, gshttpd->buf, gshttpd->len);
00036 }
00037 
00038 void ws_client (int cid, int len) {
00039     int n;
00040     char buf[len + 1];
00041 
00042     n = gs.recv(cid, buf, sizeof(buf));
00043     buf[n] = 0;
00044     pc.printf("WS_C %d: %s %d\r\n", cid, buf, n);
00045 }
00046 
00047 int main () {
00048     IpAddr ipaddr, netmask, gateway, nameserver;
00049     Host host;
00050     int cid;
00051 
00052     led1 = 1;
00053     pc.baud(115200);
00054 
00055     pc.printf("connecting...\r\n");
00056     if (gs.connect(SECURE, SSID, PASS)) {
00057         return -1;
00058     }
00059     gs.getAddress(ipaddr, netmask, gateway, nameserver);
00060     pc.printf("ip %d.%d.%d.%d\r\n", ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
00061 
00062     led2 = 1;
00063     pc.printf("httpd\r\n");
00064     gs.httpd(PORT);
00065     gs.attach_httpd("/ws/", &ws_server);
00066     gs.attach_httpd("/", "/local/");
00067 
00068     host.setName(WS_HOST);
00069     host.setPort(PORT);
00070     cid = gs.wsOpen(host, WS_URI, &ws_client);
00071     if (cid < 0) return -1;
00072     printf("ws open\r\n");
00073 
00074     for (;;) {
00075         gs.poll();
00076 
00077         if (pc.readable()) {
00078             char buf[] = "MBED= ";
00079             buf[5] = pc.getc();
00080             if (gs.wsSend(cid, buf, 6, "MASK")) {
00081                 printf("ws error\r\n");
00082             }
00083         }
00084 
00085         wait_ms(50);
00086         led1 = !led1;
00087         led2 = 0;
00088     }
00089 }