Extend compatibility

Add several macro for compatibily (register access)

Added:
analogInPinToBit
portOutputRegister
portInputRegister
portSetRegister
portClearRegister
portConfigRegister
portModeRegister
_BV
cbi
sbi

Signed-off-by: Frederic.Pillon <[email protected]>

Author: fpistm

cores/arduino/pins_arduino.h

@@ -65,6 +65,22 @@ uint32_t pinNametoDigitalPin(PinName p);
 #define digitalPinToPort(p)         (get_GPIO_Port(STM_PORT(digitalPinToPinName(p))))
 #define digitalPinToBitMask(p)      (STM_GPIO_PIN(digitalPinToPinName(p)))
 
+#define analogInPinToBit(p)         (STM_PIN(digitalPinToPinName(p)))
+#define portOutputRegister(P)       (&(P->ODR))
+#define portInputRegister(P)        (&(P->IDR))
+
+#define portSetRegister(P)          (&(P->BSRR))
+#define portClearRegister(P)        (&(P->BRR))
+
+// Config registers split in 2 registers:
+// CRL: pin 0..7
+// CRH: pin 8..15
+// Return only CRL
+#define portConfigRegister(P)       (&(P->CRL))
+// Mode included in the config register
+#define portModeRegister(P)         (portConfigRegister(P))
+
+
 #define digitalPinIsValid(p)        (digitalPinToPinName(p) != NC)
 
 // As some pin could be duplicated in digitalPin[]

cores/arduino/wiring_constants.h

@@ -112,10 +112,19 @@ enum BitOrder {
 #define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
 #define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
 
-typedef unsigned int word;
-
 #define bit(b) (1UL << (b))
+//macro added for compatibility
+#ifndef _BV
+#define _BV(bit) (1 << (bit))
+#endif
+#ifndef cbi
+#define cbi(reg, bitmask) *reg &= ~bitmask
+#endif
+#ifndef sbi
+#define sbi(reg, bitmask) *reg |= bitmask
+#endif
 
+typedef unsigned int word;
 
 typedef bool boolean ;