Files
MuditaOS/module-cellular/Modem/ATParser.cpp
2020-04-08 14:00:45 +02:00

120 lines
3.2 KiB
C++

/*
* @file ATParser.cpp
* @author Mateusz Piesta (mateusz.piesta@mudita.com)
* @date 17.07.19
* @brief
* @copyright Copyright (C) 2019 mudita.com
* @details
*/
#include "ATParser.hpp"
#include "Service/Bus.hpp"
#include "bsp/cellular/bsp_cellular.hpp"
#include "service-cellular/messages/CellularMessage.hpp"
#include "ticks.hpp"
#include <Utils.hpp>
#include <utility>
#include <vector>
ATParser::ATParser(bsp::Cellular *cellular) : cellular(cellular)
{
isInitialized = true;
}
/// plz see 12.7 summary of urc in documentation
std::vector<ATParser::Urc> ATParser::ParseURC()
{
std::vector<ATParser::Urc> resp;
size_t maxPos = 0, pos = 0;
cpp_freertos::LockGuard lock(mutex);
std::vector<std::pair<std::string, ATParser::Urc>> vals = {
{"RDY", ATParser::Urc::MeInitializationSuccessful},
{"+CFUN: 1", ATParser::Urc::FullFuncionalityAvailable},
};
for (const auto &el : vals) {
pos = responseBuffer.find(el.first);
if (pos != std::string::npos) {
resp.push_back(el.second);
maxPos = std::max(pos + el.first.length(), maxPos);
LOG_DEBUG("%s", ("[URC]: " + el.first).c_str());
}
}
// manage string buffer
if (maxPos == 0) {}
else if (responseBuffer.size() >= maxPos) {
responseBuffer.erase();
}
else {
responseBuffer = responseBuffer.substr(maxPos);
}
return resp;
}
int ATParser::ProcessNewData(sys::Service *service)
{
char rawBuffer[256] = {0};
LOG_DEBUG("Receiving data from ProcessNewData");
auto length = cellular->Read(rawBuffer, sizeof(rawBuffer));
{
cpp_freertos::LockGuard lock(mutex);
responseBuffer.append(reinterpret_cast<char *>(rawBuffer), length);
LOG_DEBUG("Appending %d bytes to responseBuffer[%u]: %s",
static_cast<int>(length),
static_cast<unsigned int>(responseBuffer.size()),
utils::removeNewLines(responseBuffer).c_str());
}
auto ret = ParseURC();
if (blockedTaskHandle) {
xTaskNotifyGive(blockedTaskHandle);
}
else if (ret.size()) {
urcs.insert(std::end(urcs), std::begin(ret), std::end(ret));
// GSM modem is considered as operational when it outputs URCs specified below:
// 1) RDY
// 2) +CFUN: 1
if (urcs.size() == 2) {
cpp_freertos::LockGuard lock(mutex);
auto msg = std::make_shared<CellularNotificationMessage>(
CellularNotificationMessage::Type::PowerUpProcedureComplete);
sys::Bus::SendMulticast(msg, sys::BusChannels::ServiceCellularNotifications, service);
LOG_DEBUG("[!!!] Fucking away data");
responseBuffer.erase();
urcs.clear();
}
}
return 1;
}
void ATParser::cmd_init()
{
cpp_freertos::LockGuard lock(mutex);
responseBuffer.erase();
}
void ATParser::cmd_send(std::string cmd)
{
cellular->Write(const_cast<char *>(cmd.c_str()), cmd.size());
}
std::vector<std::string> ATParser::cmd_receive()
{
cpp_freertos::LockGuard lock(mutex);
return utils::split(responseBuffer, "\r\n");
}
void ATParser::cmd_post()
{
cpp_freertos::LockGuard lock(mutex);
responseBuffer.erase(); // TODO:M.P is it okay to flush buffer here ?
}