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