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/*
* Fan.cpp
*
* Created on: 29 Jun 2016
* Author: David
*/
#include "Fan.h"
#include "GCodes/GCodeBuffer/GCodeBuffer.h"
Fan::Fan(unsigned int fanNum) noexcept
: fanNumber(fanNum),
val(0.0), lastVal(0.0),
minVal(DefaultMinFanPwm),
maxVal(1.0), // 100% maximum fan speed
blipTime(DefaultFanBlipTime),
sensorsMonitored(0),
isConfigured(false)
{
triggerTemperatures[0] = triggerTemperatures[1] = DefaultHotEndFanTemperature;
}
// Set or report the parameters for this fan
// If 'mcode' is an M-code used to set parameters for the f (which should only ever be 106)
// then search for parameters used to configure the fan. If any are found, perform appropriate actions and return true.
// If errors were discovered while processing parameters, put an appropriate error message in 'reply' and set 'error' to true.
// If no relevant parameters are found, print the existing ones to 'reply' and return false.
// Exceptions:
// 1. Only process the S parameter if other values were processed.
// 2. Don't process the R parameter, but if it is present don't print the existing configuration.
bool Fan::Configure(unsigned int mcode, size_t fanNum, GCodeBuffer& gb, const StringRef& reply, bool& error) noexcept
{
bool seen = false;
if (mcode == 106)
{
// Check that the fan is enabled
if (!IsEnabled())
{
reply.printf("Fan %u is disabled", fanNum);
error = true;
return true; // say we have processed it
}
if (gb.Seen('T'))
{
seen = true;
size_t numTemps = 2;
gb.GetFloatArray(triggerTemperatures, numTemps, true);
}
if (gb.Seen('B')) // Set blip time
{
seen = true;
blipTime = (uint32_t)(max<float>(gb.GetFValue(), 0.0) * SecondsToMillis);
}
if (gb.Seen('L')) // Set minimum speed
{
seen = true;
float speed = gb.GetFValue();
if (speed > 1.0)
{
speed /= 255.0;
}
minVal = constrain<float>(speed, 0.0, maxVal);
}
if (gb.Seen('X')) // Set maximum speed
{
seen = true;
float speed = gb.GetFValue();
if (speed > 1.0)
{
speed /= 255.0;
}
maxVal = constrain<float>(speed, minVal, 1.0);
}
if (gb.Seen('H')) // Set thermostatically-controlled sensors
{
seen = true;
int32_t sensors[MaxSensors]; // signed because we use H-1 to disable thermostatic mode
size_t numH = ARRAY_SIZE(sensors);
gb.GetIntArray(sensors, numH, false);
// Note that M106 H-1 disables thermostatic mode. The following code implements that automatically.
sensorsMonitored = 0;
for (size_t h = 0; h < numH; ++h)
{
const int hnum = sensors[h];
if (hnum >= 0)
{
if (hnum < (int)MaxSensors)
{
SetBit(sensorsMonitored, (unsigned int)hnum);
}
else
{
reply.copy("Sensor number out of range");
error = true;
}
}
}
if (sensorsMonitored != 0)
{
val = 1.0; // default the fan speed to full for safety
}
}
if (gb.Seen('C') && gb.GetQuotedString(name.GetRef()))
{
seen = true;
}
if (seen)
{
isConfigured = true;
// We only act on the 'S' parameter here if we have processed other parameters
if (seen && gb.Seen('S')) // Set new fan value - process this after processing 'H' or it may not be acted on
{
val = gb.GetPwmValue();
}
if (!UpdateFanConfiguration(reply))
{
error = true;
}
}
else if (!gb.Seen('R') && !gb.Seen('S'))
{
// Report the configuration of the specified fan
reply.printf("Fan %u", fanNum);
if (name.strlen() != 0)
{
reply.catf(" (%s)", name.c_str());
}
reply.catf(", speed: %d%%, min: %d%%, max: %d%%, blip: %.2f",
(int)(val * 100.0),
(int)(minVal * 100.0),
(int)(maxVal * 100.0),
(double)(blipTime * MillisToSeconds)
);
if (sensorsMonitored != 0)
{
reply.catf(", temperature: %.1f:%.1fC, sensors:", (double)triggerTemperatures[0], (double)triggerTemperatures[1]);
for (unsigned int i = 0; i < MaxSensors; ++i)
{
if (IsBitSet(sensorsMonitored, i))
{
reply.catf(" %u", i);
}
}
reply.catf(", current speed: %d%%:", (int)(lastVal * 100.0));
}
}
}
return seen;
}
// Set the PWM. 'speed' is in the interval 0.0..1.0.
GCodeResult Fan::SetPwm(float speed, const StringRef& reply) noexcept
{
val = speed;
return Refresh(reply);
}
#if HAS_MASS_STORAGE
// Save the settings of this fan if it isn't thermostatic
bool Fan::WriteSettings(FileStore *f, size_t fanNum) const noexcept
{
if (sensorsMonitored == 0)
{
String<StringLength20> fanCommand;
fanCommand.printf("M106 P%u S%.2f\n", fanNum, (double)val);
return f->Write(fanCommand.c_str());
}
return true;
}
#endif
// End
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