Add digitalToggle APIs

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

Author: fpistm

cores/arduino/stm32/digital_io.h

@@ -81,6 +81,17 @@ static inline uint32_t digital_io_read(GPIO_TypeDef *port, uint32_t pin)
   return LL_GPIO_IsInputPinSet(port, pin);
 }
 
+/**
+  * @brief  This function toggle value of an IO
+  * @param  port : one of the gpio port
+  * @param  pin : one of the gpio pin
+  * @retval None
+  */
+static inline void digital_io_toggle(GPIO_TypeDef *port, uint32_t pin)
+{
+  LL_GPIO_TogglePin(port, pin);
+}
+
 /**
   * @brief  This function set a value to an IO
   * @param  pn : Pin name
@@ -108,6 +119,19 @@ static inline int digitalReadFast( PinName pn )
   return (level)? HIGH : LOW;
 }
 
+/**
+  * @brief  This function toggle value of an IO
+  * @param  port : one of the gpio port
+  * @param  pin : one of the gpio pin
+  * @retval None
+  */
+static inline void digitalToggleFast(PinName pn)
+{
+  if(pn != NC) {
+    digital_io_toggle(get_GPIO_Port(STM_PORT(pn)), STM_GPIO_PIN(pn));
+  }
+}
+
 #ifdef __cplusplus
 }
 #endif

cores/arduino/wiring_digital.c

@@ -78,6 +78,11 @@ int digitalRead( uint32_t ulPin )
   return digitalReadFast(digitalPinToPinName(ulPin));
 }
 
+void digitalToggle( uint32_t ulPin )
+{
+  digitalToggleFast(digitalPinToPinName(ulPin));
+}
+
 #ifdef __cplusplus
 }
 #endif

cores/arduino/wiring_digital.h

@@ -62,6 +62,13 @@ extern void digitalWrite( uint32_t dwPin, uint32_t dwVal ) ;
  */
 extern int digitalRead( uint32_t ulPin ) ;
 
+/**
+ * \brief Toggle the value from a specified digital pin.
+ *
+ * \param ulPin The number of the digital pin you want to toggle (int)
+ */
+extern void digitalToggle( uint32_t ulPin ) ;
+
 #ifdef __cplusplus
 }
 #endif

keywords.txt

@@ -352,6 +352,8 @@ digitalPinFirstOccurence	KEYWORD2
 pinIsSerial	KEYWORD2
 digitalReadFast	KEYWORD2
 digitalWriteFast	KEYWORD2
+digitalToggle	KEYWORD2
+digitalToggleFast	KEYWORD2
 
 # Pin number
 PA0	LITERAL1