WiiChuck.h

00001 /* mbed audio player
00002  * Copyright (c) 2010, 2011 Frank Weissenborn
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020  * THE SOFTWARE.
00021  *
00022 /* This code based on:
00023  *  Wii Nunchuck
00024  *  http://mbed.org/users/knaka/libraries/WiiNunchuck/ljkynp
00025  *  2010-12-18
00026  */
00027  
00028 #ifndef __WIICHUCK_H
00029 #define __WIICHUCK_H
00030 
00031 #include "mbed.h"
00032 
00033 #define NUNCHUCK_ADDR     0xA4  // 0x52 << 1
00034 #define NUNCHUCK_REGADDR  0x40  // 
00035 #define NUNCHUCK_READLEN  0x06  //
00036 #define I2C_ACK 0
00037 #define I2C_READ_DELAY  0.01
00038 
00039 #define Joy_X   0
00040 #define Joy_Y   1
00041 #define Acc_X   2
00042 #define Acc_Y   3
00043 #define Acc_Z   4
00044 #define Button  5
00045 
00046 // ----------------------------------------------------------------------------
00047 //   Control values
00048 // ----------------------------------------------------------------------------
00049 #define BUTTON_PREV_VALUE               '1'
00050 #define BUTTON_NEXT_VALUE               '2'
00051 #define BUTTON_OK_VALUE                 '3'
00052 #define BUTTON_CANCEL_VALUE             '4'
00053 #define BUTTON_RESET_VALUE              'r'
00054 #define BUTTON_VOLUME_PLUS              '+'
00055 #define BUTTON_VOLUME_MINUS             '-'
00056 
00057 typedef void(*pt2Func)(int);
00058 
00059 class WiiChuck {
00060 public:
00061     bool Error;
00062     WiiChuck(PinName data, PinName clk);
00063     bool Read(int* joyX,int* joyY,int* accX,int* accY,int* accZ,int* buttonC,int* buttonZ);
00064     void start();
00065     void stop();
00066     void attach(pt2Func function);
00067 private: 
00068     I2C _i2c;
00069     pt2Func _callback_input;
00070     Ticker _getValues;
00071     void getValues();
00072     int _oldC;
00073     int _oldZ;
00074     
00075 
00076 };
00077 
00078 #endif