Merge pull request #110 from AriParkkila/master

Change default network interface to  NetworkInterface

Author: Ari Parkkila

README.md

@@ -73,7 +73,6 @@ If you like to add more traces or follow the current ones you can turn traces on
 
 ```"target_overrides": {
         "*": {
-            "target.features_add": ["LWIP"],
             "mbed-trace.enable": true,
 ```
 
@@ -98,6 +97,19 @@ Currently supported boards with onboard modem chips are:
 
 ## Compiling the application
 
+The master branch is for daily development and it uses the latest mbed-os/master.
+
+To use the latest stable version update to a Mbed OS release tag, for example:
+
+```
+mbed releases
+ * mbed-os-5.10.4
+   ...
+mbed update mbed-os-5.10.4
+```
+
+You may need to use `--clean` option to discard your local changes (use with caution).
+
 Use Mbed CLI commands to generate a binary for the application. For example, in the case of GCC, use the following command:
 
 ```sh

main.cpp

@@ -25,7 +25,7 @@
 // Number of retries /
 #define RETRY_COUNT 3
 
-CellularBase *iface;
+NetworkInterface *iface;
 
 // Echo server hostname
 const char *host_name = MBED_CONF_APP_ECHO_SERVER_HOSTNAME;
@@ -91,7 +91,7 @@ void dot_event()
 {
     while (true) {
         ThisThread::sleep_for(4000);
-        if (iface && iface->is_connected()) {
+        if (iface && iface->get_connection_status() == NSAPI_STATUS_GLOBAL_UP) {
             break;
         } else {
             trace_mutex.lock();
@@ -110,7 +110,7 @@ nsapi_error_t do_connect()
     nsapi_error_t retcode = NSAPI_ERROR_OK;
     uint8_t retry_counter = 0;
 
-    while (!iface->is_connected()) {
+    while (iface->get_connection_status() != NSAPI_STATUS_GLOBAL_UP) {
         retcode = iface->connect();
         if (retcode == NSAPI_ERROR_AUTH_FAILURE) {
             print_function("\n\nAuthentication Failure. Exiting application\n");
@@ -215,7 +215,7 @@ int main()
 #endif // #if MBED_CONF_MBED_TRACE_ENABLE
 
     // sim pin, apn, credentials and possible plmn are taken atuomtically from json when using get_default_instance()
-    iface = CellularBase::get_default_instance();
+    iface = NetworkInterface::get_default_instance();
     MBED_ASSERT(iface);
 
     nsapi_error_t retcode = NSAPI_ERROR_NO_CONNECTION;

mbed-os.lib

@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#2fd0c5cfbd83fce62da6308f9d64c0ab64e1f0d6
+https://github.com/ARMmbed/mbed-os/

mbed_app.json

@@ -17,6 +17,7 @@
   },
     "target_overrides": {
         "*": {
+            "target.network-default-interface-type": "CELLULAR",
             "mbed-trace.enable": false,
             "lwip.ipv4-enabled": true,
             "lwip.ethernet-enabled": false,