main.cpp

00001 /* WiFi Example
00002  * Copyright (c) 2016 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016  
00017 /* adaptation pour demo commande camera GOPRO
00018  * C.Dupaty 04-2018   
00019  */
00020 
00021 #include "mbed.h"
00022 #include "TCPSocket.h"
00023 
00024 #define WIFI_ESP8266    1
00025 #define WIFI_IDW0XX1    2
00026 
00027 #if TARGET_UBLOX_EVK_ODIN_W2
00028 #include "OdinWiFiInterface.h"
00029 OdinWiFiInterface wifi;
00030 
00031 #elif TARGET_REALTEK_RTL8195AM
00032 #include "RTWInterface.h"
00033 RTWInterface wifi;
00034 
00035 #else // External WiFi modules
00036 
00037 #if MBED_CONF_APP_WIFI_SHIELD == WIFI_ESP8266
00038 #include "ESP8266Interface.h"
00039 ESP8266Interface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
00040 #elif MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
00041 #include "SpwfSAInterface.h"
00042 SpwfSAInterface wifi(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
00043 #endif // MBED_CONF_APP_WIFI_SHIELD == WIFI_IDW0XX1
00044 
00045 #endif
00046 
00047 Serial pc(USBTX,USBRX);
00048 
00049 char photo[]="GET /bacpac/SH?t=goprofourcade&p=%01 HTTP/1.0\r\n\r\n"; // requete de prise de vue
00050 
00051 
00052 const char *sec2str(nsapi_security_t sec)
00053 {
00054     switch (sec) {
00055         case NSAPI_SECURITY_NONE:
00056             return "None";
00057         case NSAPI_SECURITY_WEP:
00058             return "WEP";
00059         case NSAPI_SECURITY_WPA:
00060             return "WPA";
00061         case NSAPI_SECURITY_WPA2:
00062             return "WPA2";
00063         case NSAPI_SECURITY_WPA_WPA2:
00064             return "WPA/WPA2";
00065         case NSAPI_SECURITY_UNKNOWN:
00066         default:
00067             return "Unknown";
00068     }
00069 }
00070 
00071 int scan_demo(WiFiInterface *wifi)
00072 {
00073     WiFiAccessPoint *ap;
00074 
00075     pc.printf("Scan:\n");
00076 
00077     int count = wifi->scan(NULL,0);
00078 
00079     /* Limit number of network arbitrary to 15 */
00080     count = count < 15 ? count : 15;
00081 
00082     ap = new WiFiAccessPoint[count];
00083     count = wifi->scan(ap, count);
00084     for (int i = 0; i < count; i++)
00085     {
00086         pc.printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
00087                sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
00088                ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
00089     }
00090     pc.printf("%d networks available.\n", count);
00091 
00092     delete[] ap;
00093     return count;
00094 }
00095 
00096 void envoie_commande(NetworkInterface *net, char *sbuffer)
00097 {
00098     pc.printf("\x1B[33m");  //texte jaune
00099     TCPSocket socket;
00100     nsapi_error_t response;
00101 
00102     pc.printf("Sending HTTP request to gopro...\n");
00103 
00104     // Open a socket on the network interface, and create a TCP connection to www.arm.com
00105     socket.open(net);
00106     response = socket.connect("10.5.5.9", 80);
00107     if(0 != response) {
00108         pc.printf("Error connecting: %d\n", response);
00109         socket.close();
00110         pc.printf("\x1B[37m");  //texte blanc
00111         return;
00112     }
00113     else pc.printf("Connexion etablie\r\n");
00114 
00115     // Send a simple http request
00116     //  char sbuffer[] = "GET /bacpac/SH?t=goprofourcade&p=%01 HTTP/1.0\r\n\r\n";
00117    // char sbuffer[] = "GET / HTTP/1.1\r\nhost: 10.5.5.9\r\n\r\n";
00118     nsapi_size_t size = strlen(sbuffer);
00119     response = 0;
00120     while(size)
00121     {
00122         response = socket.send(sbuffer+response, size);
00123         if (response < 0) {
00124             pc.printf("Error sending data: %d\n", response);
00125             socket.close();
00126             pc.printf("\x1B[37m");  //texte blanc
00127             return;
00128         } else {
00129             size -= response;
00130             // Check if entire message was sent or not
00131             pc.printf("sent %d [%.*s]\n", response, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
00132         }
00133     }
00134 
00135     // Recieve a simple http response and print out the response line
00136     char rbuffer[64];
00137     response = socket.recv(rbuffer, sizeof rbuffer);
00138     if (response < 0) {
00139         pc.printf("Error receiving data: %d\n", response);
00140     } else {
00141         pc.printf("recv %d [%.*s]\n", response, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
00142         pc.printf("%s\r\n",rbuffer);
00143     }
00144 
00145     // Close the socket to return its memory and bring down the network interface
00146     socket.close();
00147     pc.printf("\x1B[37m");  //texte blanc
00148 }
00149 
00150 int main()
00151 {
00152  //   int count = 0;
00153     pc.printf("\x1B[2J");  //efface ecran
00154     pc.printf("\x1B[0;0H");   // curseur en 0,0
00155     pc.printf("\x1B[37m");  //texte blanc
00156     pc.printf("-----------------------------------------------------------\r\n");
00157     pc.printf("Exemple de controle de camera GOPRO par WIFI\r\n");
00158     pc.printf("La camera GOPRO doit etre en marche, WIFI actif, mode photo\r\n");
00159     pc.printf("-----------------------------------------------------------\r\n");
00160 /*  // Exploration 
00161     count = scan_demo(&wifi);
00162     if (count == 0) {
00163         pc.printf("No WIFI APNs found - can't continue further.\n");
00164         return -1;
00165     }
00166 */
00167     pc.printf("\nTentative de connection sur la borne WIFI %s...\n", MBED_CONF_APP_WIFI_SSID);
00168     int ret = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
00169     if (ret != 0) {
00170         pc.printf("\nConnection error\n");
00171         return -1;
00172     }
00173 
00174     pc.printf("Connexion reussie\n\n");
00175     pc.printf("MAC: %s\n", wifi.get_mac_address());
00176     pc.printf("IP: %s\n", wifi.get_ip_address());
00177     pc.printf("Netmask: %s\n", wifi.get_netmask());
00178     pc.printf("Gateway: %s\n", wifi.get_gateway());
00179     pc.printf("RSSI: %d\n\n", wifi.get_rssi());
00180 
00181     char * commande = photo;  // un exemple pour prendre une photo
00182                               // la camera doit activee être en mode photo
00183     char c='a';
00184     while(c!='q')
00185     {
00186         while(pc.readable())c=pc.getc();
00187         pc.printf("\r\nTaper q pour quitter\n\r");
00188         pc.printf("ou n'importe quelle touche pour prendre une photo \n\r");
00189         while(!pc.readable());
00190         envoie_commande(&wifi,commande);
00191     }
00192     wifi.disconnect();
00193    
00194     pc.printf("Wifi deconnecte - fin du programme\n\r");
00195     while(1);
00196 }