merge edge detection and blink by nowka

io-helper.c

@@ -5,8 +5,69 @@
 volatile uint8_t outStates[nrOfOutputs/8];
 volatile uint8_t inStatesRaw[nrOfInputs/8];
 volatile uint8_t inStates[nrOfInputs/8];
-volatile uint8_t oldInstates[nrOfInputs/8];
 
+volatile uint8_t outStatesBlinking[nrOfOutputs/8];
+
+volatile uint8_t oldInstates[nrOfInputs/8];
+volatile uint8_t inStatesBothEdges[nrOfInputs/8];
+volatile uint8_t inStatesRisingEdge[nrOfInputs/8];
+volatile uint8_t inStatesFallingEdge[nrOfInputs/8];
+
+uint8_t read_Input(uint8_t nr, uint8_t type) {
+  uint8_t state = 0;
+  switch (type) {
+    case LEVEL:
+      state = ioHelperReadBit(inStates, nr);
+      break;
+    case EDGE:
+      state = ioHelperReadBit(inStatesBothEdges, nr);
+      ioHelperSetBit(inStatesBothEdges, nr, 0);
+      break;
+    case RISING:
+      state = ioHelperReadBit(inStatesRisingEdge, nr);
+      ioHelperSetBit(inStatesRisingEdge, nr, 0);
+      break;
+    case FALLING:
+      state = ioHelperReadBit(inStatesFallingEdge, nr);
+      ioHelperSetBit(inStatesFallingEdge, nr, 0);
+      break;
+  }
+
+  return state;
+}
+
+void set_Output(uint8_t nr, uint8_t state) {
+  switch (state) {
+    case BLINK:
+      ioHelperSetBit(outStatesBlinking,  nr,  ON);
+      break;
+    case TOGGLE:
+      ioHelperSetBit(outStatesBlinking,  nr,  OFF);
+      if (ioHelperReadBit(outStates, nr)) {
+        ioHelperSetBit(outStates,  nr,  OFF);
+      } else {
+        ioHelperSetBit(outStates,  nr,  ON);
+      }
+      break;
+    case ON:
+      ioHelperSetBit(outStates,  nr,  ON);
+      ioHelperSetBit(outStatesBlinking,  nr,  OFF);
+      break;
+    case OFF:
+      ioHelperSetBit(outStates,  nr,  OFF);
+      ioHelperSetBit(outStatesBlinking,  nr,  OFF);
+      break;
+  }
+}
+
+void ioHelperEdgeDetector(void){
+    for (uint8_t i = 0; i < nrOfInputs/8; i++){
+        inStatesBothEdges[i] = oldInstates[i] ^ inStates[i];
+        inStatesRisingEdge[i] = inStatesBothEdges[i] & inStates[i];
+        inStatesFallingEdge[i] = inStatesBothEdges[i] & oldInstates[i];
+        oldInstates[i] = inStates[i];
+    }
+}
 
 /* @brief: copies a single bit from one char to another char (or arrays thereof)
  *

io-helper.h

@@ -3,19 +3,33 @@
 
 #include <avr/io.h>
 
+#define LEVEL 0
+#define EDGE 1
+#define RISING 2
+#define FALLING 3
+
+#define OFF 0
+#define ON 1
+#define BLINK 2
+#define TOGGLE 3
+
 #define nrOfOutputs 32 //must be multiple of 8
 #define nrOfInputs 32 //must be multiple of 8
 
 extern volatile uint8_t outStates[nrOfOutputs/8]; 
 extern volatile uint8_t inStates[nrOfInputs/8];
 extern volatile uint8_t ioHelperDebounceTable[nrOfInputs];
+
 void ioHelperSetOuts(void);
 void ioHelperReadPins(void);
 void ioHelperIoConf(void);
 void ioHelperSetBit(volatile uint8_t *list, uint8_t nr, uint8_t state);
 unsigned char ioHelperReadBit(volatile uint8_t *list, uint8_t nr);
 void ioHelperDebounce(void);
+void ioHelperEdgeDetector(void);
 
+uint8_t read_Input(uint8_t nr, uint8_t type);
+void set_Output(uint8_t nr, uint8_t state);
 
 //Outputs
 //Pin | Bit in outStates

iohelperhelper.py

@@ -1,6 +1,7 @@
 import string
 
 ddr="""#ifdef DDRA
+ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
     DDRA|=0
 #ifdef BitPA0
         |(1<<0)
@@ -27,13 +28,14 @@ DDRA|=0
         |(1<<7)
 #endif
         |0;
-
+}
 #endif
 
 """
 
 port="""
 #ifdef PORTA
+ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
     PORTA|=0
 #ifdef BitPA0
         |(getBit1(BitPA0)<<0)
@@ -60,7 +62,9 @@ PORTA|=0
         |(getBit1(BitPA7)<<7)
 #endif
         |0;
+}
 
+ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
     PORTA&=~(0
 #ifdef BitPA0
             |(getBit0(BitPA0)<<0)
@@ -87,6 +91,7 @@ PORTA&=~(0
             |(getBit0(BitPA7)<<7)
 #endif
             |0);
+}
 #endif
 
 """