mbed-os/connectivity/drivers/cellular/QUECTEL/EC2X/QUECTEL_EC2X.cpp

157 lines
4.3 KiB
C++

/*
* 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 "QUECTEL_EC2X.h"
#include "PinNames.h"
#include "AT_CellularNetwork.h"
#include "rtos/ThisThread.h"
#include "drivers/BufferedSerial.h"
using namespace std::chrono;
using namespace mbed;
using namespace rtos;
using namespace events;
#if !defined(MBED_CONF_QUECTEL_EC2X_PWR)
#define MBED_CONF_QUECTEL_EC2X_PWR NC
#endif
#if !defined(MBED_CONF_QUECTEL_EC2X_RST)
#define MBED_CONF_QUECTEL_EC2X_RST NC
#endif
#if !defined(MBED_CONF_QUECTEL_EC2X_TX)
#define MBED_CONF_QUECTEL_EC2X_TX NC
#endif
#if !defined(MBED_CONF_QUECTEL_EC2X_RX)
#define MBED_CONF_QUECTEL_EC2X_RX NC
#endif
#if !defined(MBED_CONF_QUECTEL_EC2X_POLARITY)
#define MBED_CONF_QUECTEL_EC2X_POLARITY 1 // active high
#endif
#if !defined(MBED_CONF_QUECTEL_EC2X_START_TIMEOUT)
#define MBED_CONF_QUECTEL_EC2X_START_TIMEOUT 15000
#endif
static const intptr_t cellular_properties[AT_CellularDevice::PROPERTY_MAX] = {
AT_CellularNetwork::RegistrationModeLAC, // C_EREG
AT_CellularNetwork::RegistrationModeLAC, // C_GREG
AT_CellularNetwork::RegistrationModeLAC, // C_REG
0, // AT_CGSN_WITH_TYPE
1, // AT_CGDATA
0, // AT_CGAUTH
1, // AT_CNMI
1, // AT_CSMP
1, // AT_CMGF
1, // AT_CSDH
1, // PROPERTY_IPV4_STACK
1, // PROPERTY_IPV6_STACK
1, // PROPERTY_IPV4V6_STACK
0, // PROPERTY_NON_IP_PDP_TYPE
1, // PROPERTY_AT_CGEREP,
1, // PROPERTY_AT_COPS_FALLBACK_AUTO
0, // PROPERTY_SOCKET_COUNT
0, // PROPERTY_IP_TCP
0, // PROPERTY_IP_UDP
0, // PROPERTY_AT_SEND_DELAY
};
QUECTEL_EC2X::QUECTEL_EC2X(FileHandle *fh, PinName pwr, bool active_high, PinName rst)
: AT_CellularDevice(fh),
_active_high(active_high),
_pwr_key(pwr, !_active_high),
_rst(rst, !_active_high)
{
set_cellular_properties(cellular_properties);
}
#if MBED_CONF_QUECTEL_EC2X_PROVIDE_DEFAULT
CellularDevice *CellularDevice::get_default_instance()
{
static BufferedSerial serial(MBED_CONF_QUECTEL_EC2X_TX,
MBED_CONF_QUECTEL_EC2X_RX,
MBED_CONF_QUECTEL_EC2X_BAUDRATE);
#if defined(MBED_CONF_QUECTEL_EC2X_RTS) && defined(MBED_CONF_QUECTEL_EC2X_CTS)
serial.set_flow_control(SerialBase::RTSCTS, MBED_CONF_QUECTEL_EC2X_RTS, MBED_CONF_QUECTEL_EC2X_CTS);
#endif
static QUECTEL_EC2X device(&serial,
MBED_CONF_QUECTEL_EC2X_PWR,
MBED_CONF_QUECTEL_EC2X_POLARITY,
MBED_CONF_QUECTEL_EC2X_RST);
return &device;
}
#endif
nsapi_error_t QUECTEL_EC2X::press_power_button(duration<uint32_t, std::milli> timeout)
{
if (_pwr_key.is_connected()) {
_pwr_key = _active_high;
ThisThread::sleep_for(timeout);
_pwr_key = !_active_high;
ThisThread::sleep_for(100ms);
}
return NSAPI_ERROR_OK;
}
nsapi_error_t QUECTEL_EC2X::hard_power_on()
{
return press_power_button(600ms);
}
nsapi_error_t QUECTEL_EC2X::hard_power_off()
{
return press_power_button(750ms);
}
nsapi_error_t QUECTEL_EC2X::soft_power_on()
{
if (_rst.is_connected()) {
_rst = _active_high;
ThisThread::sleep_for(460ms);
_rst = !_active_high;
ThisThread::sleep_for(100ms);
_at.lock();
_at.set_at_timeout(milliseconds(MBED_CONF_QUECTEL_EC2X_START_TIMEOUT));
_at.resp_start();
_at.set_stop_tag("RDY");
bool rdy = _at.consume_to_stop_tag();
_at.set_stop_tag(OK);
_at.unlock();
if (!rdy) {
return NSAPI_ERROR_DEVICE_ERROR;
}
}
return NSAPI_ERROR_OK;
}
nsapi_error_t QUECTEL_EC2X::soft_power_off()
{
return hard_power_off();
}