Initial version for Quectel M26 GSM/GPRS Module.

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26.cpp

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+/*
+ * Copyright (c) 2018, 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 "QUECTEL_M26_CellularNetwork.h"
+#include "QUECTEL_M26_CellularPower.h"
+#include "QUECTEL_M26_CellularSIM.h"
+#include "QUECTEL_M26_CellularContext.h"
+#include "QUECTEL_M26.h"
+
+using namespace events;
+using namespace mbed;
+
+#define CONNECT_DELIM         "\r\n"
+#define CONNECT_BUFFER_SIZE   (1280 + 80 + 80) // AT response + sscanf format
+#define CONNECT_TIMEOUT       8000
+
+#define MAX_STARTUP_TRIALS 5
+#define MAX_RESET_TRIALS 5
+
+static const AT_CellularBase::SupportedFeature unsupported_features[] =  {
+    AT_CellularBase::AT_CGSN_WITH_TYPE,
+    AT_CellularBase::AT_CGAUTH,
+    AT_CellularBase::SUPPORTED_FEATURE_END_MARK
+};
+
+QUECTEL_M26::QUECTEL_M26(FileHandle *fh) : AT_CellularDevice(fh)
+{
+    AT_CellularBase::set_unsupported_features(unsupported_features);
+}
+
+QUECTEL_M26::~QUECTEL_M26()
+{
+}
+
+AT_CellularNetwork *QUECTEL_M26::open_network_impl(ATHandler &at)
+{
+    return new QUECTEL_M26_CellularNetwork(at);
+}
+
+AT_CellularPower *QUECTEL_M26::open_power_impl(ATHandler &at)
+{
+    return new QUECTEL_M26_CellularPower(at);
+}
+
+AT_CellularSIM *QUECTEL_M26::open_sim_impl(ATHandler &at)
+{
+    return new QUECTEL_M26_CellularSIM(at);
+}
+
+AT_CellularContext *QUECTEL_M26::create_context_impl(ATHandler &at, const char *apn)
+{
+    return new QUECTEL_M26_CellularContext(at, this, apn);
+}

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26.h

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+/*
+ * Copyright (c) 2018, 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 QUECTEL_M26_H_
+#define QUECTEL_M26_H_
+
+#include "AT_CellularDevice.h"
+
+namespace mbed {
+
+class QUECTEL_M26 : public AT_CellularDevice {
+public:
+    QUECTEL_M26(FileHandle *fh);
+    virtual ~QUECTEL_M26();
+
+protected: // AT_CellularDevice
+    virtual AT_CellularNetwork *open_network_impl(ATHandler &at);
+    virtual AT_CellularPower *open_power_impl(ATHandler &at);
+    virtual AT_CellularSIM *open_sim_impl(ATHandler &at);
+    virtual AT_CellularContext *create_context_impl(ATHandler &at, const char *apn);
+
+public: // NetworkInterface
+    void handle_urc(FileHandle *fh);
+};
+} // namespace mbed
+
+#endif // QUECTEL_M26_H_

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26_CellularContext.cpp

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+/*
+ * Copyright (c) 2018, 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 "QUECTEL_M26_CellularContext.h"
+#include "QUECTEL_M26_CellularStack.h"
+
+namespace mbed {
+
+QUECTEL_M26_CellularContext::QUECTEL_M26_CellularContext(ATHandler &at, CellularDevice *device, const char *apn) :
+    AT_CellularContext(at, device, apn)
+{
+}
+
+QUECTEL_M26_CellularContext::~QUECTEL_M26_CellularContext()
+{
+}
+
+bool QUECTEL_M26_CellularContext::stack_type_supported(nsapi_ip_stack_t stack_type)
+{
+    return stack_type == IPV4_STACK ? true : false;
+}
+
+#if !NSAPI_PPP_AVAILABLE
+NetworkStack *QUECTEL_M26_CellularContext::get_stack()
+{
+    if (!_stack) {
+        _stack = new QUECTEL_M26_CellularStack(_at, _cid, _ip_stack_type);
+    }
+    return _stack;
+}
+#endif // #if !NSAPI_PPP_AVAILABLE
+
+nsapi_error_t QUECTEL_M26_CellularContext::do_user_authentication()
+{
+
+    _at.cmd_start("AT+QICSGP=");
+    _at.write_int(1); /*GPRS MODE = 1, CSD MODE = 0*/
+    _at.write_string(_apn);
+    if (_pwd && _uname) {
+        _at.write_string(_uname);
+        _at.write_string(_pwd);
+    }
+    _at.cmd_stop();
+    _at.resp_start();
+    _at.resp_stop();
+    if (_at.get_last_error() != NSAPI_ERROR_OK) {
+        return NSAPI_ERROR_AUTH_FAILURE;
+    }
+
+    return NSAPI_ERROR_OK;
+}
+
+} /* namespace mbed */

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26_CellularContext.h

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+/*
+ * Copyright (c) 2018, 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 QUECTEL_M26_CELLULARCONTEXT_H_
+#define QUECTEL_M26_CELLULARCONTEXT_H_
+
+#include "AT_CellularContext.h"
+
+namespace mbed {
+
+class QUECTEL_M26_CellularContext: public AT_CellularContext {
+public:
+    QUECTEL_M26_CellularContext(ATHandler &at, CellularDevice *device, const char *apn);
+    virtual ~QUECTEL_M26_CellularContext();
+
+protected:
+    virtual bool stack_type_supported(nsapi_ip_stack_t stack_type);
+#if !NSAPI_PPP_AVAILABLE
+    virtual NetworkStack *get_stack();
+#endif // #if !NSAPI_PPP_AVAILABLE
+    virtual nsapi_error_t do_user_authentication();
+};
+
+} /* namespace mbed */
+
+#endif // QUECTEL_M26_CELLULARCONTEXT_H_

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26_CellularNetwork.cpp

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+/*
+ * Copyright (c) 2018, 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 "QUECTEL_M26_CellularNetwork.h"
+
+using namespace mbed;
+
+QUECTEL_M26_CellularNetwork::QUECTEL_M26_CellularNetwork(ATHandler &atHandler) : AT_CellularNetwork(atHandler)
+{
+    _op_act = RAT_EGPRS;
+}
+
+QUECTEL_M26_CellularNetwork::~QUECTEL_M26_CellularNetwork()
+{
+}
+
+AT_CellularNetwork::RegistrationMode QUECTEL_M26_CellularNetwork::has_registration(RegistrationType reg_type)
+{
+    return (reg_type == C_GREG) ? RegistrationModeLAC : RegistrationModeDisable;
+}
+
+nsapi_error_t QUECTEL_M26_CellularNetwork::set_access_technology_impl(RadioAccessTechnology opRat)
+{
+    if (opRat != RAT_EGPRS) {
+        // only GPRS support in the driver.
+        _op_act = RAT_EGPRS;
+        return NSAPI_ERROR_UNSUPPORTED;
+    }
+
+    return NSAPI_ERROR_OK;
+}

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26_CellularNetwork.h

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+/*
+ * Copyright (c) 2018, 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 QUECTEL_M26_CELLULAR_NETWORK_H_
+#define QUECTEL_M26_CELLULAR_NETWORK_H_
+
+#include "AT_CellularNetwork.h"
+
+namespace mbed {
+
+class QUECTEL_M26_CellularNetwork : public AT_CellularNetwork {
+public:
+    QUECTEL_M26_CellularNetwork(ATHandler &atHandler);
+    virtual ~QUECTEL_M26_CellularNetwork();
+
+protected:
+    virtual nsapi_error_t set_access_technology_impl(RadioAccessTechnology opRat);
+    virtual RegistrationMode has_registration(RegistrationType reg_type);
+};
+} // namespace mbed
+#endif // QUECTEL_M26_CELLULAR_NETWORK_H_

features/cellular/framework/targets/QUECTEL/M26/QUECTEL_M26_CellularPower.cpp

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2018, 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 "QUECTEL_M26_CellularPower.h"
+
+using namespace mbed;
+
+QUECTEL_M26_CellularPower::QUECTEL_M26_CellularPower(ATHandler &atHandler) : AT_CellularPower(atHandler)
+{
+
+}
+
+QUECTEL_M26_CellularPower::~QUECTEL_M26_CellularPower()
+{
+
+}
+
+nsapi_error_t QUECTEL_M26_CellularPower::set_at_mode()
+{
+    _at.lock();
+    _at.cmd_start("AT");
+    _at.cmd_stop_read_resp();
+
+    _at.cmd_start("AT+CMEE="); // verbose responses
+    _at.write_int(1);
+    _at.cmd_stop_read_resp();
+
+    return _at.unlock_return_error();
+}
+
+nsapi_error_t QUECTEL_M26_CellularPower::on()
+{
+
+    return NSAPI_ERROR_OK;
+}
+
+nsapi_error_t QUECTEL_M26_CellularPower::off()
+{
+    _at.lock();
+    _at.cmd_start("AT+QPOWD=0");
+    _at.cmd_stop();
+    _at.resp_start();
+    _at.resp_stop();
+
+    return _at.unlock_return_error();;
+}