ButtonBoard.h

00001 // buttons.h
00002 
00003 #ifndef BUTTONS_H
00004 #define BUTTONS_H
00005 
00006 #include "mbed.h"
00007 
00008 #define ADDR_BOARD_1        0x40
00009 #define ADDR_BOARD_2        0x40
00010 
00011 #define BTTN_COUNT_BOARD_1  6
00012 #define BTTN_COUNT_BOARD_2  6
00013 #define BTTN_COUNT          (BTTN_COUNT_BOARD_1 + BTTN_COUNT_BOARD_2)
00014 
00015 class ButtonBoard
00016 {
00017 private:
00018     I2C _i2c;
00019     InterruptIn _int1;
00020     InterruptIn _int2;
00021 
00022     char out_buf[8];
00023     
00024     // Callback functions
00025     FunctionPointer _callback_table[BTTN_COUNT];
00026     bool _callback_table_valid[BTTN_COUNT];
00027     void (*_callbackFunction)(char buttonMask, bool pressed, char curState);
00028     
00029     // Interrupt handlers
00030     void _int1_handler();
00031     void _int2_handler();
00032     void _fall_handler(char board);
00033     
00034     // status
00035     volatile uint16_t _led_ports;
00036     volatile uint8_t _button_state;
00037     
00038 public:
00039     ButtonBoard(PinName sda, PinName scl, PinName int1, PinName int2);
00040     ~ButtonBoard();
00041     
00042     void registerCallback(uint32_t button, FunctionPointer p);
00043     void registerCallback(void (*p)(char buttonMask, bool pressed, char curState));
00044     //void setLED(uint32_t led, bool val);
00045     void setLEDs(char mask, bool turnOn, char board = ADDR_BOARD_1);
00046     char getLEDs(char ledMask, char board = ADDR_BOARD_1);
00047     char getButtons(char buttonMask, char board = ADDR_BOARD_1);
00048 
00049 
00050     //uint16_t readInputs();
00051 };
00052 
00053 #endif