// station-supplied init function
// -- Can Be Asynchronous - event indication required --
//
// MUST:
// - set the 'stationGeneratesArchives' flag in WVIEWD_WORK:
// if the station generates archive records (TRUE) or they should be
// generated automatically by the daemon from the sensor readings (FALSE)
// - Initialize the 'stationData' store for station work area
// - Initialize the interface medium
// - do initial LOOP acquisition
// - do any catch-up on archive records if there is a data logger
// - 'work->runningFlag' can be used for start up synchronization but should
// not be modified by the station interface code
// - indicate init is done by sending the STATION_INIT_COMPLETE_EVENT event to
// this process (radProcessEventsSend (NULL, STATION_INIT_COMPLETE_EVENT, 0))
//
// OPTIONAL:
// - Initialize a state machine or any other construct required for the
// station interface - these should be stored in the 'stationData' store
//
// 'archiveIndication' - indication callback used to pass back an archive record
// generated as a result of 'stationGetArchive' being called; should receive a
// NULL pointer for 'newRecord' if no record available; only used if
// 'stationGeneratesArchives' flag is set to TRUE by the station interface
//
// Returns: OK or ERROR
//
int stationInit
(
WVIEWD_WORK *work,
void (*archiveIndication)(ARCHIVE_PKT* newRecord)
)
{
int i;
ARCHIVE_PKT recordStore;
time_t nowTime;
memset (&twiWorkData, 0, sizeof(twiWorkData));
pwviewWork = work;
twiWorkData.baudrate = B19200;
// save the archive indication callback (we should never need it)
ArchiveIndicator = archiveIndication;
// set our work data pointer
work->stationData = &twiWorkData;
// set the Archive Generation flag to indicate the TWI DOES NOT
// generate them
work->stationGeneratesArchives = FALSE;
// initialize the medium abstraction based on user configuration
if (!strcmp (work->stationInterface, "serial"))
{
if (serialMediumInit (&work->medium, serialPortConfig, O_RDWR | O_NOCTTY | O_NDELAY) == ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: serial MediumInit failed");
return ERROR;
}
}
else if (!strcmp (work->stationInterface, "ethernet"))
{
if (ethernetMediumInit (&work->medium, work->stationHost, work->stationPort)
== ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: ethernet MediumInit failed");
return ERROR;
}
}
else
{
radMsgLog (PRI_HIGH, "stationInit: medium %s not supported",
work->stationInterface);
return ERROR;
}
// initialize the interface using the media specific routine
if ((*(work->medium.init)) (&work->medium, work->stationDevice) == ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: medium setup failed");
return ERROR;
}
// Autobaud the station now:
twiWorkData.baudrate = twiConfig(work);
if (twiWorkData.baudrate <= 0)
{
radMsgLog (PRI_HIGH, "TWI: twiProtocolInit: autobaud failed!");
return ERROR;
}
radMsgLog (PRI_STATUS, "TWI: autobaud = %d", twiWorkData.baudrate);
// Reconfigure the serial port here to ensure consistency:
serialPortConfig(work->medium.fd);
tcflush (work->medium.fd, TCIFLUSH);
tcflush (work->medium.fd, TCOFLUSH);
if (!strcmp (work->stationInterface, "serial"))
{
radMsgLog (PRI_STATUS, "TWI on %s opened ...",
work->stationDevice);
}
else if (!strcmp (work->stationInterface, "ethernet"))
{
radMsgLog (PRI_STATUS, "TWI on %s:%d opened ...",
work->stationHost, work->stationPort);
}
// grab the station configuration now
if (stationGetConfigValueInt (work,
STATION_PARM_ELEVATION,
&twiWorkData.elevation)
== ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: stationGetConfigValueInt ELEV failed!");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
if (stationGetConfigValueFloat (work,
STATION_PARM_LATITUDE,
&twiWorkData.latitude)
== ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: stationGetConfigValueInt LAT failed!");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
if (stationGetConfigValueFloat (work,
STATION_PARM_LONGITUDE,
&twiWorkData.longitude)
== ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: stationGetConfigValueInt LONG failed!");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
if (stationGetConfigValueInt (work,
STATION_PARM_ARC_INTERVAL,
&twiWorkData.archiveInterval)
== ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: stationGetConfigValueInt ARCINT failed!");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
// set the work archive interval now
work->archiveInterval = twiWorkData.archiveInterval;
// sanity check the archive interval against the most recent record
if (stationVerifyArchiveInterval (work) == ERROR)
{
// bad magic!
radMsgLog (PRI_HIGH, "stationInit: stationVerifyArchiveInterval failed!");
radMsgLog (PRI_HIGH, "You must either move old archive data out of the way -or-");
radMsgLog (PRI_HIGH, "fix the interval setting...");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
else
{
radMsgLog (PRI_STATUS, "station archive interval: %d minutes",
work->archiveInterval);
}
twiWorkData.totalRain = 0;
// Create the rain accumulator (TWI_RAIN_RATE_PERIOD minute age)
// so we can compute rain rate:
twiWorkData.rainRateAccumulator = sensorAccumInit(TWI_RAIN_RATE_PERIOD);
// Populate the accumulator with the last TWI_RAIN_RATE_PERIOD minutes:
nowTime = time(NULL) - (WV_SECONDS_IN_HOUR/(60/TWI_RAIN_RATE_PERIOD));
while ((nowTime = dbsqliteArchiveGetNextRecord(nowTime, &recordStore)) != ERROR)
{
sensorAccumAddSample(twiWorkData.rainRateAccumulator,
recordStore.dateTime,
recordStore.value[DATA_INDEX_rain]);
}
radMsgLog (PRI_STATUS, "Starting station interface: TWI");
// initialize the station interface
if (twiProtocolInit(work) == ERROR)
{
radMsgLog (PRI_HIGH, "stationInit: twiProtocolInit failed!");
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
// do the initial GetReadings now
if (twiProtocolGetReadings(work, &twiWorkData.twiReadings) != OK)
{
radMsgLog (PRI_HIGH, "stationInit: initial twiProtocolGetReadings failed!");
twiProtocolExit (work);
(*(work->medium.exit)) (&work->medium);
return ERROR;
}
// Initialize the 12-hour temp accumulator:
twi12HourTempAvg = sensorAccumInit(60 * 12);
// Load data for the last 12 hours:
nowTime = time(NULL) - (WV_SECONDS_IN_HOUR * 12);
while ((nowTime = dbsqliteArchiveGetNextRecord(nowTime, &recordStore)) != ERROR)
{
sensorAccumAddSample(twi12HourTempAvg,
recordStore.dateTime,
recordStore.value[DATA_INDEX_outTemp]);
}
// populate the LOOP structure
storeLoopPkt (work, &work->loopPkt, &twiWorkData.twiReadings);
// we must indicate successful completion here -
// even though we are synchronous, the daemon wants to see this event
radProcessEventsSend(NULL, STATION_INIT_COMPLETE_EVENT, 0);
return OK;
}
int wmr918Init (WVIEWD_WORK *work)
{
WMR918_IF_DATA* ifWorkData = (WMR918_IF_DATA*)work->stationData;
fd_set rfds;
struct timeval tv;
int i, length, retVal;
time_t nowTime = time(NULL) - (WV_SECONDS_IN_HOUR/(60/WMR918_RAIN_RATE_PERIOD));
ARCHIVE_PKT recordStore;
char outString[128];
memset (&wmr918Work, 0, sizeof(wmr918Work));
// Create the rain accumulator (WMR918_RAIN_RATE_PERIOD minute age)
// so we can compute rain rate:
ifWorkData->rainRateAccumulator = sensorAccumInit(WMR918_RAIN_RATE_PERIOD);
// Populate the accumulator with the last WMR918_RAIN_RATE_PERIOD minutes:
while ((nowTime = dbsqliteArchiveGetNextRecord(nowTime, &recordStore)) != ERROR)
{
sensorAccumAddSample(ifWorkData->rainRateAccumulator,
recordStore.dateTime,
recordStore.value[DATA_INDEX_rain]);
}
radMsgLog (PRI_MEDIUM,
"wmr918Init: waiting for first sensor packets (this may take some time):");
while ((wmr918Work.dataRXMask != WMR918_SENSOR_ALL) && (! work->exiting))
{
// Log what we are waiting for:
length = 0;
for (i = 0; i < 4; i ++)
{
if (! (wmr918Work.dataRXMask & (1 << i)))
{
length += sprintf(&outString[length], "%s ", WMRSensorNames[i]);
}
}
radMsgLog (PRI_MEDIUM, "wmr918Init: waiting for sensors: %s", outString);
tv.tv_sec = 2;
tv.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(work->medium.fd, &rfds);
if (select (work->medium.fd + 1, &rfds, NULL, NULL, &tv) > 0)
{
retVal = readStationData (work);
switch (retVal)
{
case WMR918GROUP0:
radMsgLog (PRI_MEDIUM, "received WIND packet...");
break;
case WMR918GROUP1:
radMsgLog (PRI_MEDIUM, "received RAIN packet...");
break;
case WMR918GROUP2:
radMsgLog (PRI_MEDIUM, "received EXTRA TEMP packet...");
break;
case WMR918GROUP3:
radMsgLog (PRI_MEDIUM, "received OUT TEMP packet...");
break;
case WMR918GROUP4:
radMsgLog (PRI_MEDIUM, "received POOL TEMP packet...");
break;
case WMR918GROUP5:
case WMR918GROUP6:
radMsgLog (PRI_MEDIUM, "received IN TEMP packet...");
break;
default:
break;
}
}
}
if (! work->exiting)
{
radMsgLog (PRI_MEDIUM, "wmr918Init: first sensor packets received.");
}
// populate the LOOP structure:
ifWorkData->wmr918Readings = wmr918Work.sensorData;
storeLoopPkt (work, &work->loopPkt, &ifWorkData->wmr918Readings);
// we must indicate successful completion here -
// even though we are synchronous, the daemon wants to see this event
radProcessEventsSend (NULL, STATION_INIT_COMPLETE_EVENT, 0);
return OK;
}
int wh1080Init (WVIEWD_WORK *work)
{
WH1080_IF_DATA* ifWorkData = (WH1080_IF_DATA*)work->stationData;
fd_set rfds;
struct timeval tv;
int ret;
time_t nowTime = time(NULL) - (WV_SECONDS_IN_HOUR/(60/WH1080_RAIN_RATE_PERIOD));
ARCHIVE_PKT recordStore;
unsigned char controlBlock[WH1080_BUFFER_CHUNK];
memset (&wh1080Work, 0, sizeof(wh1080Work));
// Create the rain accumulator (WH1080_RAIN_RATE_PERIOD minute age)
// so we can compute rain rate:
ifWorkData->rainRateAccumulator = sensorAccumInit(WH1080_RAIN_RATE_PERIOD);
// Populate the accumulator with the last WH1080_RAIN_RATE_PERIOD minutes:
while ((nowTime = dbsqliteArchiveGetNextRecord(nowTime, &recordStore)) != ERROR)
{
sensorAccumAddSample(ifWorkData->rainRateAccumulator,
recordStore.dateTime,
recordStore.value[DATA_INDEX_rain]);
}
if ((*(work->medium.usbhidInit))(&work->medium) != OK)
{
return ERROR;
}
// Set the station to log data once per minute:
while ((!work->exiting) && (readFixedBlock(work, controlBlock) != OK))
{
radMsgLog (PRI_HIGH, "WH1080: Initial fixed block read failed");
(*(work->medium.usbhidExit))(&work->medium);
radUtilsSleep(5000);
(*(work->medium.usbhidInit))(&work->medium);
radMsgLog (PRI_HIGH, "WH1080: Retrying initial fixed block read");
}
// For some reason the WH1080 wants the IF closed between a read and a write:
(*(work->medium.usbhidExit))(&work->medium);
if (work->exiting)
{
return ERROR;
}
controlBlock[WH1080_SAMPLING_INTERVAL] = 1;
(*(work->medium.usbhidInit))(&work->medium);
if (writeFixedBlock(work, controlBlock) == ERROR)
{
(*(work->medium.usbhidExit))(&work->medium);
return ERROR;
}
radUtilsSleep(2000);
(*(work->medium.usbhidExit))(&work->medium);
radUtilsSleep(1000);
wh1080Work.lastRecord = -1;
// populate the LOOP structure:
radMsgLog (PRI_HIGH, "Waiting for the next weather record to be ready "
"in the console to populate initial wview sensor readings "
"(this could take some time);");
radMsgLog (PRI_HIGH, "While waiting be sure you are receiving all sensors on the console;");
radMsgLog (PRI_HIGH, "if not, you may need to relocate the sensors or the console.");
while ((!work->exiting) && (readStationData(work) != OK))
{
radUtilsSleep(1000);
}
if (work->exiting)
{
return ERROR;
}
ifWorkData->wh1080Readings = wh1080Work.sensorData;
storeLoopPkt (work, &work->loopPkt, &ifWorkData->wh1080Readings);
// we must indicate successful completion here -
// even though we are synchronous, the daemon wants to see this event:
radProcessEventsSend (NULL, STATION_INIT_COMPLETE_EVENT, 0);
return OK;
}
