WindowShade.cpp

00001 /* WindowShade.cpp
00002    Rob Dobson 2013
00003    More details at http://robdobson.com/2013/10/moving-my-window-shades-control-to-mbed/
00004 */
00005 
00006 #include "WindowShade.h"
00007 
00008 WindowShade::WindowShade(char* name, PinName up, PinName stop, PinName down)
00009 {
00010     strncpy(_shadeName, name, MAX_SHADE_NAME_LEN);
00011     _shadeName[MAX_SHADE_NAME_LEN-1] = '\0';
00012     _pUpPin = new DigitalOut(up);
00013     _pStopPin = new DigitalOut(stop);
00014     _pDownPin = new DigitalOut(down);
00015     _msTimeout = 0;
00016     _tickCount = 0;
00017     
00018 }
00019 
00020 void WindowShade::ClearOutputs()
00021 {
00022      // Clear any existing command
00023     _msTimeout = 0;
00024     _tickCount = 0;
00025     *_pUpPin = false;
00026     *_pStopPin = false;
00027     *_pDownPin = false;
00028 }
00029 
00030 void WindowShade::SetTimedOutput(DigitalOut* pPin, bool state, long msDuration, bool bClearExisting)
00031 {
00032 //            printf("Setting %s %d %ld %d\n\r", _shadeName, state, msDuration, bClearExisting);
00033 
00034     if (bClearExisting)
00035         ClearOutputs();
00036     *pPin = state;
00037     if (msDuration != 0)
00038     {
00039         _msTimeout = msDuration;
00040         _tickCount = 0;
00041     }
00042 }
00043 
00044 void WindowShade::CheckTimeouts(int tickMs)
00045 {
00046     // Couldn't get Timer to work so doing with a tick-count
00047     if (_msTimeout != 0)
00048     {
00049         _tickCount++;
00050         if ((_tickCount-1)*tickMs > _msTimeout)
00051         {
00052             ClearOutputs();
00053             _msTimeout = 0;
00054         }
00055     }
00056 }
00057 
00058 void WindowShade::DoCommand(char* pDirn, char* pDuration)
00059 {
00060 //            printf("DoCommand %s %s %s\n\r", _shadeName, pDirn, pDuration);
00061     
00062     // Duration and state
00063     int state = false;
00064     int msDuration = 0;
00065     if (strcmp(pDuration, "on") == 0)
00066     {
00067         state = true;
00068         msDuration = MAX_SHADE_ON_MILLSECS;
00069     }
00070     else if (strcmp(pDuration, "off") == 0)
00071     {
00072         state = false;
00073         msDuration = 0;
00074     }
00075     else if (strcmp(pDuration, "pulse") == 0)
00076     {
00077         state = true;
00078         msDuration = PULSE_ON_MILLISECS;
00079     }
00080     
00081     // Direction & config
00082     if (strcmp(pDirn, "up") == 0)
00083     {
00084         SetTimedOutput(_pUpPin, state, msDuration, true);
00085     }
00086     else if (strcmp(pDirn, "stop") == 0)
00087     {
00088         SetTimedOutput(_pStopPin, state, msDuration, true);
00089     }
00090     else if (strcmp(pDirn, "down") == 0)
00091     {
00092         SetTimedOutput(_pDownPin, state, msDuration, true);
00093     }
00094     else if (strcmp(pDirn, "setuplimit") == 0)
00095     {
00096         SetTimedOutput(_pStopPin, state, 0, true);
00097         SetTimedOutput(_pDownPin, state, msDuration, false);
00098     }
00099     else if (strcmp(pDirn, "setdownlimit") == 0)
00100     {
00101         SetTimedOutput(_pStopPin, state, 0, true);
00102         SetTimedOutput(_pUpPin, state, msDuration, false);
00103     }
00104     else if (strcmp(pDirn, "resetmemory") == 0)
00105     {
00106         SetTimedOutput(_pStopPin, state, 0, true);
00107         SetTimedOutput(_pDownPin, state, 0, false);
00108         SetTimedOutput(_pUpPin, state, msDuration, false);
00109     }                            
00110     
00111 }