uint16 NodeEeprom::readEeprom(uint16 location)
{
uint16 result;
bool canCacheEeprom = NodeEepromMap::canUseCache_read(location);
//if we want to pull from the cache
if(m_useCache && canCacheEeprom)
{
//attempt to read the value from the cache
if(readCache(location, result))
{
//the value was found in the cache, just return the result
return result;
}
}
//we didn't get a value from the cache
//attempt to read the value from the device
if(updateCacheFromDevice(location, canCacheEeprom))
{
//successfully read from the device, the cache has been updated so read from it
readCache(location, result);
return result;
}
//we failed to read the eeprom value from the cache or the device
throw Error_NodeCommunication(m_nodeAddress, "Failed to read EEPROM " + Utils::toStr(location) + " from Node " + Utils::toStr(m_nodeAddress));
}
AutoShuntCalResult WirelessNode_Impl::autoShuntCal(const ChannelMask& mask, const ShuntCalCmdInfo& commandInfo)
{
//verify the node supports this operation
if(!features().supportsAutoShuntCal())
{
throw Error_NotSupported("AutoShuntCal is not supported by this Node.");
}
//verify the channel mask supports this operation
if(!features().supportsChannelSetting(WirelessTypes::chSetting_autoShuntCal, mask))
{
throw Error_NotSupported("AutoShuntCal is not supported by the provided channel(s).");
}
uint8 channel = mask.lastChEnabled();
WirelessTypes::ChannelType chType = features().channelType(channel);
AutoShuntCalResult result;
bool success = m_baseStation.node_autoShuntCal(m_address, commandInfo, channel, model(), chType, result);
if(!success)
{
throw Error_NodeCommunication(m_address, "AutoShuntCal has failed.");
}
return result;
}
AutoCalResult_shmLink WirelessNode_Impl::autoCal_shmLink()
{
WirelessModels::NodeModel nodeModel = features().m_nodeInfo.model();
//verify the node supports autocal
if(!features().supportsAutoCal())
{
throw Error_NotSupported("AutoCal is not supported by this Node.");
}
//verify the node is the correct model
if(nodeModel != WirelessModels::node_shmLink2 &&
nodeModel != WirelessModels::node_shmLink2_cust1)
{
throw Error_NotSupported("autoCal_shmLink is not supported by this Node's model.");
}
//perform the autocal command by the base station
AutoCalResult_shmLink result;
bool success = m_baseStation.node_autocal_shm(m_address, result);
if(!success)
{
throw Error_NodeCommunication(m_address, "AutoCal has failed.");
}
return result;
}
void NodeEeprom::writeEeprom(uint16 location, uint16 value)
{
//if we want to check the cache
if(m_useCache && NodeEepromMap::canUseCache_write(location))
{
//attempt to read the value from the cache
uint16 valInCache;
if(readCache(location, valInCache))
{
//if the value in the cache is the same we are trying to write
if(valInCache == value)
{
//do not need to write anything, just return
return;
}
}
}
//if we made it here, we want to actually write to the device
//if the read/write version is unknown
if(m_readWriteVersion == 0)
{
//try to determine the version of the read/write eeprom cmd
if(!determineReadWriteVersion())
{
//failed to get the read/write version
throw Error_NodeCommunication(m_nodeAddress, "Failed to write EEPROM " + Utils::toStr(location) + " to Node " + Utils::toStr(m_nodeAddress));
}
}
//attempt to write the value to the Node
if(m_baseStation.node_writeEeprom(m_readWriteVersion, m_nodeAddress, location, value))
{
//successfully wrote to the Node, update the cache
updateCache(location, value);
return;
}
//we failed to write the value to the Node
//clear the eeprom cache for this location if we have one, just to be safe
clearCacheLocation(location);
throw Error_NodeCommunication(m_nodeAddress, "Failed to write EEPROM " + Utils::toStr(location) + " to Node " + Utils::toStr(m_nodeAddress));
}
void WirelessNode_Impl::erase()
{
//call the node_erase command from the parent BaseStation
bool success = m_baseStation.node_erase(protocol(), m_address);
//if the erase command failed
if(!success)
{
throw Error_NodeCommunication(m_address, "Failed to erase the Node.");
}
}
void WirelessNode_Impl::getDiagnosticInfo(ChannelData& result)
{
//verify the node supports this operation
if(!features().supportsGetDiagnosticInfo())
{
throw Error_NotSupported("The Get Diagnostic Info command is not supported by this Node.");
}
bool success = m_baseStation.node_getDiagnosticInfo(m_address, result);
if(!success)
{
throw Error_NodeCommunication(m_address, "Get Diagnostic Info has failed.");
}
}
ByteStream* NodeMemory_v1::getByteStream(uint16 page)
{
//if the requested data is in the currently downloaded data buffer
if(page == m_currentPageNumber && !m_currentData.empty())
{
//just return the address of m_currentPageData
return &m_currentData;
}
//if the requested data is in the previously downloaded data buffer
if(page == m_previousPageNumber && !m_previousData.empty())
{
//just return the address of m_previousPageData
return &m_previousData;
}
//if we made it here, the page requested is data we don't already have
//request the current page data
ByteStream tempData;
if(!m_node.getBaseStation().node_pageDownload(m_node.protocol(), m_node.nodeAddress(), page, tempData))
{
//the page download failed, throw an exception
throw Error_NodeCommunication(m_node.nodeAddress(), "Failed to download data from the Node.");
}
//if there is current data that needs move to previous data
if(!m_currentData.empty())
{
//copy the current data into the previous data buffer
m_previousData.clear();
m_previousData = m_currentData;
m_previousPageNumber = m_currentPageNumber;
}
//copy the data that was just read into m_currentData
m_currentData = tempData;
m_currentPageNumber = page;
//we successfully downloaded data that is in m_currentData
return &m_currentData;
}
uint16 WirelessNode_Impl::getNumDatalogSessions()
{
if(features().datalogDownloadVersion() == 1)
{
return m_eepromHelper->read_numDatalogSessions();
}
else
{
//datalog v2+ doesn't support the num datalog sessions eeprom
//use the getDatalogSessionInfo command to obtain this information
DatalogSessionInfoResult info;
if(!m_baseStation.node_getDatalogSessionInfo(protocol(), m_address, info))
{
throw Error_NodeCommunication(nodeAddress(), "Failed to get the Datalogging Session Info");
}
return info.sessionCount;
}
}
DatalogDownloader::DatalogDownloader(const WirelessNode& node):
m_node(node),
m_foundFirstTrigger(false),
m_outOfMemory(false),
m_sweepCount(0)
{
//verify the node supports logged data
if(!node.features().supportsLoggedData())
{
throw Error_NotSupported("Logging is not supported by this Node.");
}
m_datalogDownloadVersion = m_node.features().datalogDownloadVersion();
if(m_datalogDownloadVersion == 1)
{
//get the datalogging information from the Node
uint16 logPage = m_node.eepromHelper().read_logPage();
uint16 pageOffset = m_node.eepromHelper().read_logPageOffset();
//create the NodeMemory object (v1)
m_nodeMemory.reset(new NodeMemory_v1(m_node, logPage, pageOffset));
}
else
{
//get the datalogging session info
DatalogSessionInfoResult dlInfo;
if(!m_node.getBaseStation().node_getDatalogSessionInfo(node.protocol(), node.nodeAddress(), dlInfo))
{
throw Error_NodeCommunication(m_node.nodeAddress(), "Failed to get the Datalog Session Info");
}
//get the FlashInfo
FlashInfo flashInfo = m_node.eepromHelper().read_flashInfo();
//create the Node Memory object (v2)
m_nodeMemory.reset(new NodeMemory_v2(m_node, flashInfo, dlInfo.startAddress, dlInfo.maxLoggedBytes));
}
}
AutoBalanceResult WirelessNode_Impl::autoBalance(const ChannelMask& mask, float targetPercent)
{
Utils::checkBounds_min(targetPercent, 0.0f);
Utils::checkBounds_max(targetPercent, 100.0f);
//attempt a few pings first
//(legacy (v1) autobalance doesn't have a response packet, so need to check communication)
uint8 retryCounter = 0;
bool pingSuccess = false;
while(!pingSuccess && retryCounter < 3)
{
pingSuccess = ping().success();
retryCounter++;
}
if(!pingSuccess)
{
throw Error_NodeCommunication(nodeAddress());
}
//find the eeprom location that the autobalance will adjust
//Note: this also verifies that it is supported for this mask
const EepromLocation& eepromLoc = features().findEeprom(WirelessTypes::chSetting_autoBalance, mask);
//currently, autobalance is always per channel, so get the channel from the mask
uint8 channelNumber = mask.lastChEnabled();
AutoBalanceResult result;
//perform the autobalance command with the parent base station
m_baseStation.node_autoBalance(protocol(), m_address, channelNumber, targetPercent, result);
//clear the cache of the hardware offset eeprom location we adjusted
eeprom().clearCacheLocation(eepromLoc.location());
Utils::threadSleep(200);
//if we used the legacy command, we don't get result info, need to do more work to get it
if(result.m_errorCode == WirelessTypes::autobalance_legacyNone)
{
result.m_errorCode = WirelessTypes::autobalance_maybeInvalid;
//force the read eeprom retries to a minimum of 3
uint8 startRetries = m_eepromSettings.numRetries;
//when this goes out of scope, it will change back the original retries value
ScopeHelper writebackRetries(std::bind(&WirelessNode_Impl::setReadWriteRetries, this, startRetries));
//if there are less than 10 retries
if(startRetries < 10)
{
//we want to retry at least a few times
setReadWriteRetries(10);
}
else
{
//don't need to write back the retries since we didn't make a change
writebackRetries.cancel();
}
//read the updated hardware offset from the node
result.m_hardwareOffset = readEeprom(eepromLoc).as_uint16();
bool readSensorSuccess = false;
uint8 readSensorTry = 0;
do
{
//perform the read single sensor command
uint16 sensorVal = 0;
readSensorSuccess = m_baseStation.node_readSingleSensor(m_address, channelNumber, sensorVal);
if(readSensorSuccess)
{
//find the max bits value of the node
uint32 maxBitsVal = 0;
switch(model())
{
case WirelessModels::node_vLink:
case WirelessModels::node_sgLink_rgd:
case WirelessModels::node_shmLink:
maxBitsVal = 65536;
break;
default:
maxBitsVal = 4096;
break;
}
//calculate and store the percent achieved
result.m_percentAchieved = static_cast<float>(sensorVal) / static_cast<float>(maxBitsVal) * 100.0f;
}
readSensorTry++;
}
while(!readSensorSuccess && readSensorTry <= 3);
if(readSensorSuccess)
{
//mark as questionable if not close enough to the target percentage
if(std::abs(result.m_percentAchieved - targetPercent) > 5.0)
{
result.m_errorCode = WirelessTypes::autobalance_maybeInvalid;
}
else
{
result.m_errorCode = WirelessTypes::autobalance_success;
}
}
}
return result;
}
