HspLed.cpp

00001 /*******************************************************************************
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00033 
00034 #include "HspLed.h"
00035 #include "Peripherals.h"
00036 
00037 void hspled_int_handler(void);
00038 
00039 //*******************************************************************************
00040 HspLed::HspLed(PinName ledPin) : 
00041       redLed(LED_RED, 0), isStarted(false), timerIntervalLast(-1), timerInterval(500) {
00042 }
00043 
00044 
00045 //*******************************************************************************
00046 void HspLed::state(int state) { 
00047   redLed.write(state); 
00048 }
00049 
00050 
00051 //*******************************************************************************
00052 void HspLed::toggle(void) { 
00053   state(!redLed.read()); 
00054 }
00055 
00056 
00057 //*******************************************************************************
00058 void HspLed::setMode(eMode mode) { 
00059   this->mode = mode; 
00060 }
00061 
00062 //*******************************************************************************
00063 void HspLed::blink(uint32_t mSeconds) {
00064   mode = eLedPeriod;
00065   this->timerInterval = (float)mSeconds / 1000.0f;
00066   start();
00067 }
00068 
00069 //*******************************************************************************
00070 void HspLed::pattern(uint32_t bitPattern, uint32_t mSeconds) {
00071   mode = eLedPattern;
00072   this->bitPattern = bitPattern;
00073   this->timerInterval = (float)mSeconds / 1000.0f;
00074   start();
00075 }
00076 
00077 //*******************************************************************************
00078 void HspLed::on(void) {
00079   mode = eLedOn;
00080   state(HSP_LED_ON);
00081   start();
00082 }
00083 
00084 
00085 //*******************************************************************************
00086 void HspLed::off(void) {
00087   mode = eLedOff;
00088   state(HSP_LED_OFF);
00089   start();
00090 }
00091 
00092 
00093 //*******************************************************************************
00094 void HspLed::patternToLed(void) {
00095   uint32_t bit;
00096   bit = bitPattern & 1;
00097   state(bit);
00098   // rotate the pattern
00099   bitPattern = bitPattern >> 1;
00100   bitPattern = bitPattern | (bit << 31);
00101 }
00102 
00103 
00104 //*******************************************************************************
00105 void HspLed::service(void) {
00106   switch (mode) {
00107   case eLedOn:
00108     state(HSP_LED_ON);
00109     break;
00110   case eLedOff:
00111     state(HSP_LED_OFF);
00112     break;
00113   case eLedPeriod:
00114     toggle();
00115     break;
00116   case eLedPattern:
00117     patternToLed();
00118     break;
00119   }
00120 }
00121 
00122 //*******************************************************************************
00123 void HspLed::start(void) {
00124   if (timerInterval != timerIntervalLast && isStarted == true) {
00125     stop();
00126   }
00127   ticker.attach(&hspled_int_handler, timerInterval);
00128   timerIntervalLast = timerInterval;
00129 
00130   isStarted = true;
00131 }
00132 
00133 //*******************************************************************************
00134 void HspLed::stop(void) {
00135   ticker.detach();
00136   isStarted = false;
00137 }
00138 
00139 //*******************************************************************************
00140 void hspled_int_handler(void) {
00141   HspLed *hspLed = Peripherals::hspLed();
00142   hspLed->service();
00143 }
00144