Diff: ButtonController.h

Revision:

0:b6d729ae4f27

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ButtonController.h	Thu Jul 25 00:43:08 2019 +0000
@@ -0,0 +1,78 @@
+#ifndef _BUTTON_CONTROLLER_
+#define _BUTTON_CONTROLLER_
+
+#include "mbed.h"
+#include "rtos.h"
+#include "mcp23s08.h"
+#include "Menu.h"
+#include "Navigator.h"
+
+/**
+ * service to manage the external GPIO expander board.
+ */
+typedef enum
+{
+    NO_BUTTON    = 27,
+    BUTTON_UP    = 26,
+    BUTTON_DOWN  = 25,
+    BUTTON_MODE  = 19,
+    BUTTON_SET   = 11,
+    BUTTON_CLEAR = 0
+} tButtonValue ;
+
+typedef void (*t_ButtonPressCallback)(void);
+
+
+/***
+*
+* This class wrapps the communication with the GPIO expander over SPI bus.
+*  PIN 0 : Up
+*  PIN 1 : Down
+*  PIN 2 : Clear
+*  PIN 3 : Mode
+*  PIN 4 : Set
+*  PIN 5 : Enable Audio
+*  PIN 6 : na
+*  PIN 7 : na 
+*  
+*  MASK = 0x1F;
+*  
+*/
+class ButtonController 
+{
+    public :
+        
+        Navigator *     navigator;
+        mcp23s08 *      spi_io_exp;
+        Mutex           _mutex;
+        unsigned char   currentValue;
+        unsigned char   prevValue;
+        unsigned char   confirmedValue;
+        unsigned int    countsSinceChange;
+        unsigned char   isServiced;
+        unsigned char   isHeld;
+        
+        
+        CircularBuffer<uint8_t, 64> cmd_queue;
+        
+        ButtonController(Navigator * navigator);
+        ~ButtonController();
+        
+        void  pressButtonUp(void);
+        void  pressButtonDown(void);
+        void  pressButtonClear(void);
+        void  pressButtonMode(void);
+        void  pressButtonSet(void);
+        void  releaseButton(void);
+        
+        void init(void);
+        void update(void);
+        void update(Navigator * navigator);
+        void update(Menu * menu);
+        void update(int currentValue, Menu * menu);
+        
+        uint8_t getCurrentState ();
+};
+
+
+#endif