main.cpp

00001 /* This is a sample application program for GR-PEACH_WlanBP3595STA library. */
00002 /* GR-PEACH_WlanBP3595STA library only works with GR-PEACH. */
00003 /* This sample works as TCP socket sever, and this program sends a message */
00004 /* when a connection is accepted. */
00005 
00006 /*
00007 Warning!
00008   When exporting and using it, increase the following stack size.
00009   
00010   [EthernetInterface/lwip/lwipopts.h]---------
00011   #define TCPIP_THREAD_STACKSIZE      1024
00012   ->
00013   #define TCPIP_THREAD_STACKSIZE      2048
00014   --------------------------------------------
00015 */
00016 
00017 /*
00018 This works with the following library.
00019   mbed-rtos : revision 115
00020 */
00021 
00022 #include "mbed.h"
00023 #include "rtos.h"
00024 #include "GR_PEACH_WlanBP3595.h"
00025 
00026 /* Please change the following macro definition to your setting. */
00027 #define WLAN_SSID               ("SSIDofYourAP")                // SSID
00028 #define WLAN_PSK                ("PSKofYourAP")                 // PSK(Pre-Shared Key)
00029 #define SERVER_IP               ("192.168.1.200")               // Server IP address
00030 #define SERVER_PORT             (50000)                         // TCP server socket port number
00031 #define SUBNET_MASK             ("255.255.255.0")               // Subnet mask
00032 #define DEFAULT_GATEWAY         ("192.168.1.1")                 // Default gateway
00033 #define SEND_MESSAGE            ("Hello, world!\r\n")           // Send-message
00034 
00035 static void _wlan_inf_callback(uint8_t ucType, uint16_t usWid, uint16_t usSize, uint8_t *pucData);
00036 
00037 DigitalOut  red_led(LED1);              // On: error
00038 DigitalOut  green_led(LED2);            // On: WLAN has been connected
00039 
00040 /** Main function
00041  *
00042  */
00043 int main() {
00044     GR_PEACH_WlanBP3595 wlan;
00045     TCPSocketServer     server;
00046     TCPSocketConnection connection;
00047     int                 ret;
00048 
00049     wlan.setWlanCbFunction(_wlan_inf_callback);
00050 
00051     /* Initialize GR_PEACH_WlanBP3595 */
00052     ret = wlan.init(SERVER_IP, SUBNET_MASK, DEFAULT_GATEWAY);
00053     if (ret != 0) {
00054         /* error */
00055         red_led = 1;
00056         while (1) { Thread::wait(1000); }
00057     }
00058 
00059     /* Connect(GR_PEACH_WlanBP3595) */
00060     ret = wlan.connect(WLAN_SSID, WLAN_PSK);
00061     if (ret != 0) {
00062         /* error */
00063         red_led = 1;
00064         while (1) { Thread::wait(1000); }
00065     }
00066 
00067     /* Bind and listen */
00068     server.bind(SERVER_PORT);
00069     server.listen();
00070 
00071     /* Loop */
00072     while (1) {
00073         /* Accept */
00074         server.accept(connection);
00075         printf("Connection from: %s\n", connection.get_address());
00076 
00077         /* Send a message */
00078         connection.send_all((char *)SEND_MESSAGE, sizeof(SEND_MESSAGE)-1);
00079 
00080         /* Close */
00081         connection.close();
00082     }
00083 }
00084 
00085 /** WLAN Information callback function
00086  *
00087  */
00088 static void _wlan_inf_callback(uint8_t ucType, uint16_t usWid, uint16_t usSize, uint8_t *pucData)
00089 {
00090     if (ucType == 'I') {
00091         if (usWid == 0x0005) {    // WID_STATUS
00092             if (pucData[0] == 0x01) {     // CONNECTED
00093                 green_led = 1;
00094             } else {
00095                 green_led = 0;
00096             }
00097         }
00098     }
00099 }