added API to sets custom touch pins

added API to sets custom touch pins

Author: Rocketct

src/Arduino_MCHPTouch.cpp

@@ -100,14 +100,20 @@ void QtouchClass::setSensorsSensitivity(unsigned int newSens)
 
 /*******************************************************************************
  * Function Name  : setTouchPad
- * Description    : Sets the touch's pad zero in accord with the carrier
+ * Description    : Sets the touch's pad
  *                  version
- * Input          : pad - desired pad
+ * Input          : pads - desired pads
  * Return         : NONE
  *******************************************************************************/
-void QtouchClass::setTouchPad(int pad)
+void QtouchClass::setTouchPad(int pad0, int pad1, int pad2, int pad3, int pad4)
 {
-  setTouchZero(pad);
+    int pads[5];
+    pads[0] = pad0;
+    pads[1] = pad1;
+    pads[2] = pad2;
+    pads[3] = pad3;
+    pads[4] = pad4;
+    setPads(pads);
 }
 
 /*******************************************************************************

src/Arduino_MCHPTouch.h

@@ -23,7 +23,7 @@ class QtouchClass
   int available();
   int read(int sensor_id);
   void setSensorsSensitivity(unsigned int newSens);
-  void setTouchPad(int pad = 0);
+  void setTouchPad(int pad0, int pad1 = -1, int pad2 = -1, int pad3 = -1, int pad4 = -1);
   void setSensorsSensitivity(unsigned int newSens ,unsigned int btn_channel);
   void setSensorsHysteresis(hysteresis_t newHyst);
   unsigned int getSensorsSensitivity();

src/touch.c

@@ -96,7 +96,7 @@ unsigned int _sensitivity = 50u;
 unsigned int _sensitivity_ch[5] = {50u , 50u, 50u, 50u, 50u};
 
 hysteresis_t _hysteresis = HYST_6_25;
-int _pad = 0;
+int _pad[5] = {-1,-1,-1,-1,-1};
 uint8_t module_error_code = 0;
 /*----------------------------------------------------------------------------
 *                               static variables
@@ -258,8 +258,9 @@ touch_ret_t touch_sensors_init(void)
 
 	touch_time.measurement_period_ms = DEF_TOUCH_MEASUREMENT_PERIOD_MS;
 
-	touch_config.p_selfcap_config->p_selfcap_y_nodes[0] = Y(_pad);
-
+	for(int i = 0; i < 5; i++) {
+		touch_config.p_selfcap_config->p_selfcap_y_nodes[i] = Y(_pad[i]);
+	}
 	/* Initialize touch library for Self Cap operation. */
 	touch_ret = touch_selfcap_sensors_init(&touch_config);
 	if (touch_ret != TOUCH_SUCCESS) {
@@ -419,8 +420,12 @@ void setSensitivity(unsigned int newSens){
 	}
 }
 
-void setTouchZero(int pad){
-	_pad = pad;
+void setPads(int *pad){
+	for(int i = 0; i < 5; i++) {
+		if(pad[i] != -1){
+			_pad[i] = pad[i];
+		}
+	}
 }
 
 void setSensitivityChannel(unsigned int newSens, unsigned int btn_channel){

src/touch_api_SAMD.h

@@ -994,7 +994,7 @@ void setSensitivity(unsigned int newSens);
 void setSensitivityChannel(unsigned int newSens, unsigned int btn_channel);
 hysteresis_t getHysteresis();
 unsigned int getSensitivity();
-void setTouchZero(int pad);
+void setPads(int *pad);
 
 /* Acquisition module SAMD21 Sequential */