Adding basic macros for analog + digital pin information.

damellis · damellis · commit d338f22bde9b · 2011-08-12T18:27:00.000-04:00
http://code.google.com/p/arduino/issues/detail?id=495
diff --git a/hardware/arduino/pins/mega/pins_arduino.h b/hardware/arduino/pins/mega/pins_arduino.h
@@ -27,6 +27,11 @@
 
 #include <avr/pgmspace.h>
 
+#define NUM_DIGITAL_PINS            70
+#define NUM_ANALOG_INPUTS           16
+#define analogInputToDigitalPin(p)  ((p < 16) ? (p) + 54 : -1)
+#define digitalPinHasPWM(p)         (((p) >= 2 && (p) <= 13) || ((p) >= 44 && (p)<= 46))
+
 const static uint8_t SS   = 53;
 const static uint8_t MOSI = 51;
 const static uint8_t MISO = 50;
diff --git a/hardware/arduino/pins/standard/pins_arduino.h b/hardware/arduino/pins/standard/pins_arduino.h
@@ -27,6 +27,16 @@
 
 #include <avr/pgmspace.h>
 
+#define NUM_DIGITAL_PINS            20
+#define NUM_ANALOG_INPUTS           6
+#define analogInputToDigitalPin(p)  ((p < 6) ? (p) + 14 : -1)
+
+#if defined(__AVR_ATmega8__)
+#define digitalPinHasPWM(p)         ((p) == 9 || (p) == 10 || (p) == 11)
+#else
+#define digitalPinHasPWM(p)         ((p) == 3 || (p) == 5 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 11)
+#endif
+
 const static uint8_t SS   = 10;
 const static uint8_t MOSI = 11;
 const static uint8_t MISO = 12;
