public int Pause()
{
ControlStatuses status;
lock (pvars)
{
status = this.deviceStatus;
}
if ((status & ControlStatuses.Paused) == ControlStatuses.Paused)
{
return(2);
}
else if (!((status & ControlStatuses.Running) == ControlStatuses.Running))
{
return(4);
}
else
{
status |= ControlStatuses.Paused;
lock (pvars)
{
this.deviceStatus = status;
}
return(0);
}
}
public int Stop()
{
ControlStatuses status;
lock (pvars)
{
status = this.deviceStatus;
}
lock (pvars)
{
deviceStatus = ControlStatuses.Terminate;
}
return(0);
}
/* ----------------------------------------------------------------------
* EXECUTIVE FUNCTIONS
*
* start() - start/re-start reading telemetry in a thread
* stop() - stop reading telemetry and terminates thread
* pause() - discards inbound telemetry (ignores it)
*
*
* THE MEAT OF THE CODE IS IN RUN() IT IS A WHILE LOOP CONSTANTLY
* READING TELEMETRY AND ISSUING CONTROL COMMANDS WHILST UPDATING
* MEMBER VARIABLES AS TELEMETRY CHANGES ARE FOUND.
*
* run() - bg thread continuosly reading/writing the device port
* it is kicked off by start and then examines status to check
* when it is time to pause or stop altogether.
* ---------------------------------------------------------------------- */
public int Restart()
{
ControlStatuses status;
lock (pvars)
{
status = this.deviceStatus;
}
if ((status & ControlStatuses.Running) == ControlStatuses.Running && (status & ControlStatuses.Paused) == ControlStatuses.Paused)
{
status &= ControlStatuses.Paused;
lock (pvars)
{
this.deviceStatus = status;
}
return(0);
}
return(2);
}
public Computrainer(string device)
{
devicePower = deviceHeartRate = deviceCadence = deviceSpeed = deviceRRC = 0;
for (int i = 0; i < 24; i++)
{
spinData[i] = 0;
}
mode = DefaultMode;
load = DefaultLoad;
gradient = DefaultGradient;
deviceCalibrated = false;
deviceHRConnected = false;
deviceCadenceConnected = false;
Device = device;
deviceStatus = 0;
Buffer.BlockCopy(ERGO_Command, 0, ergo_command, 0, 56);
Buffer.BlockCopy(SS_Command, 0, ss_command, 0, 56);
}
public void Run()
{
// locally cached settings - only update main class variables
// when they change
int cmds = 0; // count loops with no command sent
// holders for unpacked telemetry
int ss1, ss2, ss3, buttons, type, value8, value12;
ss1 = 0; ss2 = 0; ss3 = 0; buttons = 0; type = 0; value8 = 0; value12 = 0;
// newly read values - compared against cached values
int changed;
DeviceOperationModes newmode;
double newload, newgradient;
double newspeed, newRRC;
bool newcalibrated, newhrconnected, newcadconnected;
bool isDeviceOpen = false;
// Cached current values
// when new values are received from the device
// if they differ from current values we update
// otherwise do nothing
DeviceOperationModes curmode;
ControlStatuses curStatus;
double curload, curgradient;
double curPower; // current output power in Watts
double curHeartRate; // current heartrate in BPM
double curCadence; // current cadence in RPM
double curSpeed; // current speef in KPH
double curRRC; // calibrated Rolling Resistance
bool curcalibrated; // is it calibrated?
bool curhrconnected; // is HR sensor connected?
bool curcadconnected; // is CAD sensor connected?
double[] curspinData = new double[24]; // SS values only in SS_MODE
int curButtons; // Button status
// initialise local cache & main vars
lock (pvars)
{
this.deviceStatus = ControlStatuses.Running;
curmode = this.mode;
curload = this.load;
curgradient = this.gradient;
curPower = this.devicePower = 0;
curHeartRate = this.deviceHeartRate = 0;
curCadence = this.deviceCadence = 0;
curSpeed = this.deviceSpeed = 0;
curButtons = this.deviceButtons;
curRRC = this.deviceRRC = 0;
curcalibrated = false;
this.deviceCalibrated = false;
curhrconnected = false;
this.deviceHRConnected = false;
curcadconnected = false;
this.deviceCadenceConnected = false;
curButtons = 0;
this.deviceButtons = 0;
curStatus = this.deviceStatus;
for (int i = 0; i < 24; i++)
{
curspinData[i] = this.spinData[i] = 0;
}
}
// open the device
if (!OpenPort())
{
return; // open failed!
}
else
{
isDeviceOpen = true;
}
// send first command to get computrainer ready
PrepareCommand(curmode, curmode == DeviceOperationModes.Ergo ? curload : curgradient);
if (SendCommand(curmode))
{
while (true)
{
if (isDeviceOpen)
{
if (ReadMessage() > 0)
{
changed = 0;
UnpackTelemetry(ref ss1, ref ss2, ref ss3, ref buttons, ref type, ref value8, ref value12);
switch (type)
{
case (int)MessageTypes.Speed:
value12 *= 36; // convert from mps to kph
value12 *= 9;
value12 /= 10; // it seems that compcs takes off 10% ????
newspeed = value12;
newspeed /= 1000;
if (newspeed != curSpeed)
{
lock (pvars)
{
this.deviceSpeed = curSpeed = newspeed;
}
changed = 1;
}
break;
case (int)MessageTypes.Power:
if (value12 != curPower)
{
curPower = value12;
lock (pvars)
{
this.devicePower = curPower;
}
changed = 1;
}
break;
case (int)MessageTypes.HeartRate:
if (value8 != curHeartRate)
{
curHeartRate = value8;
lock (pvars)
{
this.deviceHeartRate = curHeartRate;
}
changed = 1;
}
break;
case (int)MessageTypes.Cadence:
if (value8 != curCadence)
{
curCadence = value8;
lock (pvars)
{
this.deviceCadence = curCadence;
}
changed = 1;
}
break;
case (int)MessageTypes.RRC:
newcalibrated = (value12 & 2048) != 0 ? true : false;
newRRC = value12 & ~2048; // only use 11bits
newRRC /= 256;
if (newRRC != curRRC)
{
lock (pvars)
{
this.deviceRRC = curRRC = newRRC;
}
changed = 1;
}
break;
case (int)MessageTypes.Sensor:
newcadconnected = (value12 & 2048) != 0 ? true : false;
newhrconnected = (value12 & 1024) != 0 ? true : false;
if (newhrconnected != curhrconnected || newcadconnected != curcadconnected)
{
lock (pvars)
{
this.deviceHRConnected = curhrconnected = newhrconnected;
this.deviceCadenceConnected = curcadconnected = newcadconnected;
}
changed = 1;
}
break;
default:
break;
}
if (buttons != curButtons)
{
lock (pvars)
{
this.deviceButtons = curButtons = buttons;
}
}
else
{
Thread.Sleep(100);
}
lock (pvars)
{
curStatus = this.deviceStatus;
newmode = this.mode;
newload = this.load;
curgradient = newgradient = this.gradient;
}
if ((curStatus & ControlStatuses.Running) == 0)
{
ClosePort();
return;
}
if ((curStatus & ControlStatuses.Paused) != 0 && isDeviceOpen)
{
ClosePort();
isDeviceOpen = false;
}
else if ((curStatus & ControlStatuses.Paused) == 0 && (curStatus & ControlStatuses.Running) != 0 && isDeviceOpen == false)
{
if (!OpenPort())
{
return;
}
isDeviceOpen = true;
PrepareCommand(curmode, curmode == DeviceOperationModes.Ergo ? curload : curgradient);
if (!SendCommand(curmode))
{
ClosePort();
return;
}
if (isDeviceOpen && (cmds % 10) == 0)
{
cmds = 1;
curmode = newmode;
curload = newload;
curgradient = newgradient;
PrepareCommand(curmode, curmode == DeviceOperationModes.Ergo ? curload : curgradient);
if (!SendCommand(curmode))
{
ClosePort();
cmds = 10;
return;
}
}
else
{
cmds++;
}
}
}
}
}
}
else
{
ClosePort();
return;
}
}