Jordan Earls
A version of the PS/2 library customized for MbedConsole. Also includes a few things that make it's behavior easier to control and a few bug fixes.
Fork of
PS2
by 
Shinichiro Nakamura
PS2.h@0:7ee6afa15d51, 2010-08-31 (annotated)
- Committer:
- shintamainjp
- Date:
- Tue Aug 31 11:25:34 2010 +0000
- Revision:
- 0:7ee6afa15d51
- Child:
- 1:823c2798e398
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| shintamainjp | 0:7ee6afa15d51 | 1 | /** |
| shintamainjp | 0:7ee6afa15d51 | 2 | * PS/2 interface control class (Version 0.0.1) |
| shintamainjp | 0:7ee6afa15d51 | 3 | * |
| shintamainjp | 0:7ee6afa15d51 | 4 | * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems) |
| shintamainjp | 0:7ee6afa15d51 | 5 | * http://shinta.main.jp/ |
| shintamainjp | 0:7ee6afa15d51 | 6 | */ |
| shintamainjp | 0:7ee6afa15d51 | 7 | |
| shintamainjp | 0:7ee6afa15d51 | 8 | #ifndef _PS2_H_ |
| shintamainjp | 0:7ee6afa15d51 | 9 | #define _PS2_H_ |
| shintamainjp | 0:7ee6afa15d51 | 10 | |
| shintamainjp | 0:7ee6afa15d51 | 11 | #include "mbed.h" |
| shintamainjp | 0:7ee6afa15d51 | 12 | #include "Semaphore.h" |
| shintamainjp | 0:7ee6afa15d51 | 13 | |
| shintamainjp | 0:7ee6afa15d51 | 14 | /** |
| shintamainjp | 0:7ee6afa15d51 | 15 | * PS/2 interface control class. |
| shintamainjp | 0:7ee6afa15d51 | 16 | */ |
| shintamainjp | 0:7ee6afa15d51 | 17 | class PS2 { |
| shintamainjp | 0:7ee6afa15d51 | 18 | public: |
| shintamainjp | 0:7ee6afa15d51 | 19 | /** |
| shintamainjp | 0:7ee6afa15d51 | 20 | * Create. |
| shintamainjp | 0:7ee6afa15d51 | 21 | * |
| shintamainjp | 0:7ee6afa15d51 | 22 | * @param clkinpin Input pin for clock. |
| shintamainjp | 0:7ee6afa15d51 | 23 | * @param datinpin Input pin for data. |
| shintamainjp | 0:7ee6afa15d51 | 24 | */ |
| shintamainjp | 0:7ee6afa15d51 | 25 | PS2(PinName clkin_pin, PinName datin_pin, PinName clkout_pin = NC, PinName datout_pin = NC); |
| shintamainjp | 0:7ee6afa15d51 | 26 | |
| shintamainjp | 0:7ee6afa15d51 | 27 | /** |
| shintamainjp | 0:7ee6afa15d51 | 28 | * Destory. |
| shintamainjp | 0:7ee6afa15d51 | 29 | */ |
| shintamainjp | 0:7ee6afa15d51 | 30 | ~PS2(); |
| shintamainjp | 0:7ee6afa15d51 | 31 | |
| shintamainjp | 0:7ee6afa15d51 | 32 | /** |
| shintamainjp | 0:7ee6afa15d51 | 33 | * Check exists a data. |
| shintamainjp | 0:7ee6afa15d51 | 34 | * |
| shintamainjp | 0:7ee6afa15d51 | 35 | * @return true if a data exists. |
| shintamainjp | 0:7ee6afa15d51 | 36 | */ |
| shintamainjp | 0:7ee6afa15d51 | 37 | bool exists(void); |
| shintamainjp | 0:7ee6afa15d51 | 38 | |
| shintamainjp | 0:7ee6afa15d51 | 39 | /** |
| shintamainjp | 0:7ee6afa15d51 | 40 | * Get a data into a buffer. |
| shintamainjp | 0:7ee6afa15d51 | 41 | * |
| shintamainjp | 0:7ee6afa15d51 | 42 | * @param buf A pointer to a buffer. |
| shintamainjp | 0:7ee6afa15d51 | 43 | * @param bufsiz A size of the buffer. |
| shintamainjp | 0:7ee6afa15d51 | 44 | * |
| shintamainjp | 0:7ee6afa15d51 | 45 | * @return Number of a byte size. |
| shintamainjp | 0:7ee6afa15d51 | 46 | */ |
| shintamainjp | 0:7ee6afa15d51 | 47 | int getData(uint8_t *buf, size_t bufsiz); |
| shintamainjp | 0:7ee6afa15d51 | 48 | |
| shintamainjp | 0:7ee6afa15d51 | 49 | private: |
| shintamainjp | 0:7ee6afa15d51 | 50 | InterruptIn clkin; |
| shintamainjp | 0:7ee6afa15d51 | 51 | DigitalIn datin; |
| shintamainjp | 0:7ee6afa15d51 | 52 | DigitalOut clkout; |
| shintamainjp | 0:7ee6afa15d51 | 53 | DigitalOut datout; |
| shintamainjp | 0:7ee6afa15d51 | 54 | Timeout timeout; |
| shintamainjp | 0:7ee6afa15d51 | 55 | Semaphore sem; |
| shintamainjp | 0:7ee6afa15d51 | 56 | int writepoint; |
| shintamainjp | 0:7ee6afa15d51 | 57 | int readpoint; |
| shintamainjp | 0:7ee6afa15d51 | 58 | static const int TIMEOUT_US = 10 * 1000; |
| shintamainjp | 0:7ee6afa15d51 | 59 | static const int RINGBUFSIZ = 16; |
| shintamainjp | 0:7ee6afa15d51 | 60 | static const int DATABUFSIZ = 32; |
| shintamainjp | 0:7ee6afa15d51 | 61 | |
| shintamainjp | 0:7ee6afa15d51 | 62 | typedef enum { |
| shintamainjp | 0:7ee6afa15d51 | 63 | Idle, |
| shintamainjp | 0:7ee6afa15d51 | 64 | Reading, |
| shintamainjp | 0:7ee6afa15d51 | 65 | Writing |
| shintamainjp | 0:7ee6afa15d51 | 66 | } State; |
| shintamainjp | 0:7ee6afa15d51 | 67 | |
| shintamainjp | 0:7ee6afa15d51 | 68 | typedef struct { |
| shintamainjp | 0:7ee6afa15d51 | 69 | State state; |
| shintamainjp | 0:7ee6afa15d51 | 70 | int bitcnt; |
| shintamainjp | 0:7ee6afa15d51 | 71 | int bytecnt; |
| shintamainjp | 0:7ee6afa15d51 | 72 | int errcnt; |
| shintamainjp | 0:7ee6afa15d51 | 73 | uint8_t buffer[DATABUFSIZ]; |
| shintamainjp | 0:7ee6afa15d51 | 74 | } work_t; |
| shintamainjp | 0:7ee6afa15d51 | 75 | work_t work; |
| shintamainjp | 0:7ee6afa15d51 | 76 | |
| shintamainjp | 0:7ee6afa15d51 | 77 | typedef struct { |
| shintamainjp | 0:7ee6afa15d51 | 78 | int bytecnt; |
| shintamainjp | 0:7ee6afa15d51 | 79 | uint8_t buffer[DATABUFSIZ]; |
| shintamainjp | 0:7ee6afa15d51 | 80 | } data_t; |
| shintamainjp | 0:7ee6afa15d51 | 81 | data_t ringbuffer[RINGBUFSIZ]; |
| shintamainjp | 0:7ee6afa15d51 | 82 | |
| shintamainjp | 0:7ee6afa15d51 | 83 | void func_timeout(void); |
| shintamainjp | 0:7ee6afa15d51 | 84 | void func_fall(void); |
| shintamainjp | 0:7ee6afa15d51 | 85 | void init_work(void); |
| shintamainjp | 0:7ee6afa15d51 | 86 | }; |
| shintamainjp | 0:7ee6afa15d51 | 87 | |
| shintamainjp | 0:7ee6afa15d51 | 88 | #endif |