(Almost done) pin refactoring

[matches/MCTX3420.git] / server / bbb_pin.h

diff --git a/server/bbb_pin.h b/server/bbb_pin.h
index ce91e5a..0b5f345 100644 (file)
--- a/server/bbb_pin.h
+++ b/server/bbb_pin.h
@@ -12,42 +12,46 @@
 
 #if defined(_BBB) || defined(_BBB_PIN_SRC)
 // Initialise / Deinitialise functions
-extern void GPIO_Export(int pin);
+extern bool GPIO_Export(int pin);
 extern void GPIO_Unexport(int pin);
 
-extern void PWM_Export(int pin);
+extern bool PWM_Export(int pin);
 extern void PWM_Unexport(int pin);
 
-extern void ADC_Export(int pin);
+extern bool ADC_Export(int pin);
 extern void ADC_Unexport(int pin);
 
 // Pin reading/setting functions
-extern bool GPIO_Read(int pin);
-extern void GPIO_Set(int pin, bool value);
+extern bool GPIO_Read(int pin, bool *result);
+extern bool GPIO_Set(int pin, bool value);
 
-extern int ADC_Read(int pin);
+extern bool ADC_Read(int id, int *value);
 
-extern void PWM_Set(int pin, bool polarity, long period, long duty); // period and duty are in ns
+extern bool PWM_Set(int pin, bool polarity, long period, long duty); // period and duty are in ns
 extern void PWM_Stop(int pin);
+
 #else
 //Empty defines so it compiles on any platform that's not the BBB
-#define GPIO_Export(pin)
+
+extern bool GPIO_Export(int pin);
+extern void GPIO_Unexport(int pin);
+
+#define GPIO_Export(pin) true
 #define GPIO_Unexport(pin)
 
-#define PWM_Export(pin)
+#define PWM_Export(pin) true
 #define PWM_Unexport(pin)
 
-#define ADC_Export(pin)
+#define ADC_Export(pin) true
 #define ADC_Unexport(pin)
 
-#define GPIO_Read(pin) 0
-#define GPIO_Set(pin, value)
-
-#define ADC_Read(pin) 0
+#define GPIO_Read(pin, result) ((*(result) = 0) == 0)
+#define GPIO_Set(pin, value) true
 
-#define PWM_Set(pin, polarity, period, duty)
-#define PWM_Stop(Pin)
+#define ADC_Read(id, value) ((*(value) = 0) == 0)
 
+#define PWM_Set(pin, polarity, period, duty) true
+#define PWM_Stop(pin)
 
 #endif //_BBB