123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/*
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* Copyright (c) 2020, Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ALT1250_PPP.h"
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#include "ALT1250_PPP_CellularContext.h"
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#include "AT_CellularNetwork.h"
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#include "ALT1250_PPP_CellularNetwork.h"
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#include "CellularLog.h"
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#include "rtos/ThisThread.h"
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using namespace std::chrono;
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using namespace rtos;
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using namespace mbed;
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using namespace events;
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#define CONNECT_DELIM "\r\n"
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#define CONNECT_BUFFER_SIZE (1280 + 80 + 80) // AT response + sscanf format
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#define CONNECT_TIMEOUT 8000
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#if !defined(MBED_CONF_ALT1250_PPP_RST)
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#define MBED_CONF_ALT1250_PPP_RST NC
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#endif
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static const intptr_t cellular_properties[AT_CellularDevice::PROPERTY_MAX] = {
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AT_CellularNetwork::RegistrationModeLAC,// C_EREG
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AT_CellularNetwork::RegistrationModeDisable, // C_GREG
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AT_CellularNetwork::RegistrationModeLAC, // C_REG
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1, // AT_CGSN_WITH_TYPE
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0, // AT_CGDATA
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0, // AT_CGAUTH
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1, // AT_CNMI
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1, // AT_CSMP
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1, // AT_CMGF
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1, // AT_CSDH
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1, // PROPERTY_IPV4_STACK
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0, // PROPERTY_IPV6_STACK
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0, // PROPERTY_IPV4V6_STACK
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0, // PROPERTY_NON_IP_PDP_TYPE
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1, // PROPERTY_AT_CGEREP
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};
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ALT1250_PPP::ALT1250_PPP(FileHandle *fh, PinName rst, PinDirection pin_dir, PinMode pin_mode, bool value)
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: AT_CellularDevice(fh),
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_rst(rst, pin_dir, pin_mode, value)
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{
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set_cellular_properties(cellular_properties);
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}
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AT_CellularContext *ALT1250_PPP::create_context_impl(ATHandler &at, const char *apn, bool cp_req, bool nonip_req)
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{
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return new ALT1250_PPP_CellularContext(at, this, apn, cp_req, nonip_req);
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}
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AT_CellularNetwork *ALT1250_PPP::open_network_impl(ATHandler &at)
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{
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return new ALT1250_PPP_CellularNetwork(at, *this);
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}
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nsapi_error_t ALT1250_PPP::soft_power_on()
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{
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// check if modem is already ready
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_at.lock();
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_at.flush();
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_at.set_at_timeout(30);
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_at.cmd_start("AT");
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_at.cmd_stop_read_resp();
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nsapi_error_t err = _at.get_last_error();
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_at.restore_at_timeout();
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_at.unlock();
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// modem is not responding to AT commands, power it on
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if (err != NSAPI_ERROR_OK) {
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tr_warn("Modem is not responding to AT commands, reset it");
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if (_rst.is_connected()) {
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_rst = 0;
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ThisThread::sleep_for(100ms);
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_rst = 1;
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}
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if (_at.sync(2000)) {
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tr_warn("Modem is AT ready");
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return NSAPI_ERROR_OK;
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}
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tr_warn("Modem is not AT ready following reset");
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return _at.get_last_error();
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}
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return NSAPI_ERROR_OK;
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}
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#if MBED_CONF_ALT1250_PPP_PROVIDE_DEFAULT
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#if !NSAPI_PPP_AVAILABLE
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#error Must define lwip.ppp-enabled
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#endif
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#include "BufferedSerial.h"
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CellularDevice *CellularDevice::get_default_instance()
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{
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static BufferedSerial serial(MBED_CONF_ALT1250_PPP_TX, MBED_CONF_ALT1250_PPP_RX, MBED_CONF_ALT1250_PPP_BAUDRATE);
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#if defined (MBED_CONF_ALT1250_PPP_RTS) && defined (MBED_CONF_ALT1250_PPP_CTS)
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tr_debug("ALT1250_PPP flow control: RTS %d CTS %d", MBED_CONF_ALT1250_PPP_RTS, MBED_CONF_ALT1250_PPP_CTS);
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serial.set_flow_control(SerialBase::RTSCTS, MBED_CONF_ALT1250_PPP_RTS, MBED_CONF_ALT1250_PPP_CTS);
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#endif
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static ALT1250_PPP device(&serial, MBED_CONF_ALT1250_PPP_RST, PIN_OUTPUT, OpenDrainNoPull, 1);
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return &device;
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}
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#endif
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