wip:

include/zh_avr_ac_dimmer.h

@@ -18,10 +18,39 @@
         .triac_port = 0}
 
 #ifdef __cplusplus
+
 extern "C"
 {
 #endif
 
+#define ZH_ZERO_CROSSING_ON                           \
+    if (_is_zero_crossing == false)                   \
+    {                                                 \
+        switch (_init_config.triac_port)              \
+        {                                             \
+        case AVR_PORTB:                               \
+            PORTB &= ~(1 << _init_config.triac_gpio); \
+            break;                                    \
+        case AVR_PORTC:                               \
+            PORTC &= ~(1 << _init_config.triac_gpio); \
+        case AVR_PORTD:                               \
+            PORTD &= ~(1 << _init_config.triac_gpio); \
+            break;                                    \
+        default:                                      \
+            break;                                    \
+        }                                             \
+        _is_zero_crossing = true;                     \
+        break;                                        \
+    }
+
+#define ZH_ZERO_CROSSING_OFF       \
+    if (_is_zero_crossing == true) \
+    {                              \
+        _is_zero_crossing = false; \
+        flag = true;               \
+    }                              \
+    break;
+
     typedef enum
     {
         ZH_50HZ = 1,