add led handling for m5atom

lib/led/GwLeds.cpp

@@ -0,0 +1,60 @@
+#include "GwLeds.h"
+#include "GwHardware.h"
+#include "GwApi.h"
+#include "FastLED.h"
+
+static GwLedMode mode=LED_OFF;
+void setLedMode(GwLedMode newMode){
+    //we consider the mode to an atomic item...
+    mode=newMode;
+}
+
+static CRGB::HTMLColorCode colorFromMode(GwLedMode cmode){
+    switch(cmode){
+        case LED_BLUE:
+            return CRGB::Blue;    
+        case LED_GREEN:
+            return CRGB::Green;
+        case LED_RED:
+            return CRGB::Red;
+        case LED_WHITE:
+            return CRGB::White;        
+        default:
+            return CRGB::Black;    
+    }
+}
+void handleLeds(void *param){
+    GwApi *api=(GwApi*)param;
+    GwLog *logger=api->getLogger();
+    #ifndef GWLED_FASTLED
+        LOG_DEBUG(GwLog::LOG,"currently only fastled handling");
+        vTaskDelete(NULL);
+        return;
+    #else
+    CRGB leds[1];
+    #ifdef GWLED_SCHEMA
+    FastLED.addLeds<GWLED_TYPE,GWLED_PIN,GWLED_SCHEMA>(leds,1);
+    #else
+    FastLED.addLeds<GWLED_TYPE,GWLED_PIN>(leds,1);
+    #endif
+    #ifdef GWLED_BRIGHTNESS
+    uint8_t brightness=GWLED_BRIGHTNESS;
+    #else
+    uint8_t brightness=128; //50%
+    #endif
+    GwLedMode currentMode=mode;
+    leds[0]=colorFromMode(currentMode);
+    FastLED.setBrightness(brightness);
+    FastLED.show();
+    while(true){
+        delay(50);
+        GwLedMode newMode=mode;
+        if (newMode != currentMode){
+            leds[0]=colorFromMode(newMode);
+            FastLED.show();
+            currentMode=newMode;
+        }
+    }
+    vTaskDelete(NULL);
+    #endif
+}

lib/led/GwLeds.h

@@ -0,0 +1,13 @@
+#ifndef _GWLEDS_H
+#define _GWLEDS_H
+//task function
+void handleLeds(void *param);
+typedef enum {
+    LED_OFF,
+    LED_GREEN,
+    LED_BLUE,
+    LED_RED,
+    LED_WHITE
+} GwLedMode;
+void setLedMode(GwLedMode mode);
+#endif