Aleksandar Kodzhabashev
/
TrackballQuery
An example of using polling PS/2 using the modified mbed PS/2 library
mylib/PS2/PS2KB.h
- Committer:
- d3alek
- Date:
- 2014-03-19
- Revision:
- 14:168aa965b1b4
- Parent:
- 0:94cffad90b69
File content as of revision 14:168aa965b1b4:
/** * PS/2 keyboard interface control class (Version 0.0.1) * * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems) * http://shinta.main.jp/ */ #ifndef _PS2KB_H_ #define _PS2KB_H_ #include "mbed.h" /** * PS/2 keyboard interface control class. */ class PS2KB { public: /** * Create. * * @param clk_pin Clock pin. * @param dat_pin Data pin. */ PS2KB(PinName clk_pin, PinName dat_pin); /** * Destory. */ virtual ~PS2KB(); /** * Get a data from a PS/2 device. * * @return A data from a PS/2 device. */ virtual int getc(void); /** * Set timeout. * * @param ms Timeout ms. */ virtual void setTimeout(int ms); private: static const int RINGBUFSIZ = 256; InterruptIn clk; /**< Interrupt input for CLK. */ DigitalIn dat; /**< Digital input for DAT. */ Timeout wdt; /**< Watch dog timer. */ Timer tot; /**< Timeout timer. */ int timeout; /**< Timeout[ms] for getc(). */ typedef struct { int bitcnt; int cStart; int cEnd; uint8_t buffer[RINGBUFSIZ]; } work_t; work_t work; void func_timeout(void); void func_fall(void); void init_work(void); }; #endif