Shinichiro Nakamura
PS/2
Dependents: Synth Lab3Translator PS2_Keyboard CLI ... more
PS2KB.h@2:a57bbbec16b1, 2010-09-29 (annotated)
- Committer:
- shintamainjp
- Date:
- Wed Sep 29 22:15:03 2010 +0000
- Revision:
- 2:a57bbbec16b1
- Parent:
- 1:823c2798e398
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| shintamainjp | 1:823c2798e398 | 1 | /** |
| shintamainjp | 1:823c2798e398 | 2 | * PS/2 keyboard interface control class (Version 0.0.1) |
| shintamainjp | 1:823c2798e398 | 3 | * |
| shintamainjp | 1:823c2798e398 | 4 | * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems) |
| shintamainjp | 1:823c2798e398 | 5 | * http://shinta.main.jp/ |
| shintamainjp | 1:823c2798e398 | 6 | */ |
| shintamainjp | 1:823c2798e398 | 7 | |
| shintamainjp | 1:823c2798e398 | 8 | #ifndef _PS2KB_H_ |
| shintamainjp | 1:823c2798e398 | 9 | #define _PS2KB_H_ |
| shintamainjp | 1:823c2798e398 | 10 | |
| shintamainjp | 1:823c2798e398 | 11 | #include "mbed.h" |
| shintamainjp | 1:823c2798e398 | 12 | |
| shintamainjp | 1:823c2798e398 | 13 | /** |
| shintamainjp | 1:823c2798e398 | 14 | * PS/2 keyboard interface control class. |
| shintamainjp | 1:823c2798e398 | 15 | */ |
| shintamainjp | 1:823c2798e398 | 16 | class PS2KB { |
| shintamainjp | 1:823c2798e398 | 17 | public: |
| shintamainjp | 1:823c2798e398 | 18 | /** |
| shintamainjp | 1:823c2798e398 | 19 | * Create. |
| shintamainjp | 1:823c2798e398 | 20 | * |
| shintamainjp | 1:823c2798e398 | 21 | * @param clk_pin Clock pin. |
| shintamainjp | 1:823c2798e398 | 22 | * @param dat_pin Data pin. |
| shintamainjp | 1:823c2798e398 | 23 | */ |
| shintamainjp | 1:823c2798e398 | 24 | PS2KB(PinName clk_pin, PinName dat_pin); |
| shintamainjp | 1:823c2798e398 | 25 | |
| shintamainjp | 1:823c2798e398 | 26 | /** |
| shintamainjp | 1:823c2798e398 | 27 | * Destory. |
| shintamainjp | 1:823c2798e398 | 28 | */ |
| shintamainjp | 1:823c2798e398 | 29 | virtual ~PS2KB(); |
| shintamainjp | 1:823c2798e398 | 30 | |
| shintamainjp | 1:823c2798e398 | 31 | /** |
| shintamainjp | 1:823c2798e398 | 32 | * Get a data from a PS/2 device. |
| shintamainjp | 1:823c2798e398 | 33 | * |
| shintamainjp | 1:823c2798e398 | 34 | * @return A data from a PS/2 device. |
| shintamainjp | 1:823c2798e398 | 35 | */ |
| shintamainjp | 1:823c2798e398 | 36 | virtual int getc(void); |
| shintamainjp | 1:823c2798e398 | 37 | |
| shintamainjp | 1:823c2798e398 | 38 | /** |
| shintamainjp | 1:823c2798e398 | 39 | * Set timeout. |
| shintamainjp | 1:823c2798e398 | 40 | * |
| shintamainjp | 1:823c2798e398 | 41 | * @param ms Timeout ms. |
| shintamainjp | 1:823c2798e398 | 42 | */ |
| shintamainjp | 1:823c2798e398 | 43 | virtual void setTimeout(int ms); |
| shintamainjp | 1:823c2798e398 | 44 | |
| shintamainjp | 1:823c2798e398 | 45 | private: |
| shintamainjp | 1:823c2798e398 | 46 | static const int RINGBUFSIZ = 256; |
| shintamainjp | 1:823c2798e398 | 47 | InterruptIn clk; /**< Interrupt input for CLK. */ |
| shintamainjp | 1:823c2798e398 | 48 | DigitalIn dat; /**< Digital input for DAT. */ |
| shintamainjp | 1:823c2798e398 | 49 | Timeout wdt; /**< Watch dog timer. */ |
| shintamainjp | 1:823c2798e398 | 50 | Timer tot; /**< Timeout timer. */ |
| shintamainjp | 1:823c2798e398 | 51 | int timeout; /**< Timeout[ms] for getc(). */ |
| shintamainjp | 1:823c2798e398 | 52 | |
| shintamainjp | 1:823c2798e398 | 53 | typedef struct { |
| shintamainjp | 1:823c2798e398 | 54 | int bitcnt; |
| shintamainjp | 1:823c2798e398 | 55 | int cStart; |
| shintamainjp | 1:823c2798e398 | 56 | int cEnd; |
| shintamainjp | 1:823c2798e398 | 57 | uint8_t buffer[RINGBUFSIZ]; |
| shintamainjp | 1:823c2798e398 | 58 | } work_t; |
| shintamainjp | 1:823c2798e398 | 59 | work_t work; |
| shintamainjp | 1:823c2798e398 | 60 | |
| shintamainjp | 1:823c2798e398 | 61 | void func_timeout(void); |
| shintamainjp | 1:823c2798e398 | 62 | void func_fall(void); |
| shintamainjp | 1:823c2798e398 | 63 | |
| shintamainjp | 1:823c2798e398 | 64 | void init_work(void); |
| shintamainjp | 1:823c2798e398 | 65 | }; |
| shintamainjp | 1:823c2798e398 | 66 | |
| shintamainjp | 1:823c2798e398 | 67 | #endif |