Diff: source/network-helper.h

Revision:

73:6f5021cbe752

Child:

74:f26e846adfe9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/network-helper.h	Thu Feb 28 18:13:48 2019 +0000
@@ -0,0 +1,110 @@
+#ifndef _MBED_HTTP_EXAMPLE_H_
+#define _MBED_HTTP_EXAMPLE_H_
+
+#include "mbed.h"
+#ifdef TARGET_SIMULATOR
+#include "EthernetInterface.h"
+#endif
+
+
+const char * sec2str(nsapi_security_t sec)
+{
+    switch (sec) {
+        case NSAPI_SECURITY_NONE:
+            return "None";
+        case NSAPI_SECURITY_WEP:
+            return "WEP";
+        case NSAPI_SECURITY_WPA:
+            return "WPA";
+        case NSAPI_SECURITY_WPA2:
+            return "WPA2";
+        case NSAPI_SECURITY_WPA_WPA2:
+            return "WPA/WPA2";
+        case NSAPI_SECURITY_UNKNOWN:
+        default:
+            return "Unknown";
+    }
+}
+
+int scan_demo(WiFiInterface *wifi)
+{
+    WiFiAccessPoint *ap;
+
+    printf("Scan:\n");
+
+    int count = wifi->scan(NULL,0);
+
+    if (count <= 0) {
+        printf("scan() failed with return value: %d\n", count);
+        return 0;
+    }
+
+    /* Limit number of network arbitrary to 15 */
+    count = count < 15 ? count : 15;
+
+    ap = new WiFiAccessPoint[count];
+    count = wifi->scan(ap, count);
+
+    if (count <= 0) {
+        printf("scan() failed with return value: %d\n", count);
+        return 0;
+    }
+
+    for (int i = 0; i < count; i++) {
+        printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
+               sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
+               ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
+    }
+    printf("%d networks available.\n", count);
+
+    delete[] ap;
+    return count;
+}
+
+
+/**
+ * Connect to the network using the default networking interface,
+ * you can also swap this out with a driver for a different networking interface
+ * if you use WiFi: see mbed_app.json for the credentials
+ */
+NetworkInterface *connect_to_default_network_interface() {
+    printf("[NWKH] Connecting to network...\n");
+
+#ifdef TARGET_SIMULATOR
+    NetworkInterface* network = new EthernetInterface();
+#else
+    //NetworkInterface* network = NetworkInterface::get_default_instance();
+    WiFiInterface *network = WiFiInterface::get_default_instance();
+    if (!network) {
+        printf("ERROR: No WiFiInterface found.\n");
+        return NULL;
+    }
+    int count;
+    count = scan_demo(network);
+    if (count == 0) {
+        printf("No WIFI APNs found - can't continue further.\n");
+        return NULL;
+    }
+
+    //printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID);
+    //ret = network->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
+    //if (ret != 0) {
+    //    printf("\nConnection error: %d\n", ret);
+    //    return -1;
+    //}
+#endif
+
+    //nsapi_error_t connect_status = network->connect();
+    nsapi_error_t connect_status = network->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
+
+    if (connect_status != NSAPI_ERROR_OK) {
+        printf("[NWKH] Failed to connect to network (%d)\n", connect_status);
+        return NULL;
+    }
+
+    printf("[NWKH] Connected to the network\n");
+    printf("[NWKH] IP address: %s\n", network->get_ip_address());
+    return network;
+}
+
+#endif // _MBED_HTTP_EXAMPLE_H_