Implement set_access_technology_impl for Telit ME910

Author: linlingao

features/cellular/framework/targets/TELIT/ME910/TELIT_ME910.cpp

@@ -17,6 +17,7 @@
 
 #include "TELIT_ME910.h"
 #include "TELIT_ME910_CellularContext.h"
+#include "TELIT_ME910_CellularNetwork.h"
 #include "AT_CellularNetwork.h"
 #include "PinNames.h"
 #include "rtos/ThisThread.h"
@@ -187,3 +188,8 @@ nsapi_error_t TELIT_ME910::soft_power_off()
 {
     return AT_CellularDevice::soft_power_off();
 }
+
+AT_CellularNetwork *TELIT_ME910::open_network_impl(ATHandler &at)
+{
+    return new TELIT_ME910_CellularNetwork(at);
+}

features/cellular/framework/targets/TELIT/ME910/TELIT_ME910.h

@@ -48,6 +48,8 @@ class TELIT_ME910 : public AT_CellularDevice {
     virtual nsapi_error_t hard_power_off();
     virtual nsapi_error_t soft_power_on();
     virtual nsapi_error_t soft_power_off();
+    virtual AT_CellularNetwork *open_network_impl(ATHandler &at);
+
 private:
     bool _active_high;
     DigitalOut _pwr_key;

features/cellular/framework/targets/TELIT/ME910/TELIT_ME910_CellularNetwork.cpp

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2019, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TELIT_ME910_CellularNetwork.h"
+
+using namespace mbed;
+
+TELIT_ME910_CellularNetwork::TELIT_ME910_CellularNetwork(ATHandler &atHandler) : AT_CellularNetwork(atHandler)
+{
+}
+
+TELIT_ME910_CellularNetwork::~TELIT_ME910_CellularNetwork()
+{
+}
+
+nsapi_error_t TELIT_ME910_CellularNetwork::set_access_technology_impl(RadioAccessTechnology opsAct)
+{
+    switch (opsAct) {
+        case RAT_GSM:
+        case RAT_CATM1:
+        case RAT_NB1:
+            _op_act = opsAct;
+            return NSAPI_ERROR_OK;
+
+        default:
+            _op_act = RAT_UNKNOWN;
+            return NSAPI_ERROR_UNSUPPORTED;
+    }
+}
+
+

features/cellular/framework/targets/TELIT/ME910/TELIT_ME910_CellularNetwork.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TELIT_ME910_CELLULAR_NETWORK_H_
+#define TELIT_ME910_CELLULAR_NETWORK_H_
+
+#include "AT_CellularNetwork.h"
+
+namespace mbed {
+
+class TELIT_ME910_CellularNetwork : public AT_CellularNetwork {
+public:
+    TELIT_ME910_CellularNetwork(ATHandler &atHandler);
+    virtual ~ TELIT_ME910_CellularNetwork();
+
+protected:
+    virtual nsapi_error_t set_access_technology_impl(RadioAccessTechnology opRat);
+
+};
+
+} // namespace mbed
+
+#endif // TELIT_ME910_CELLULAR_NETWORK_H_