188 lines
4.3 KiB
C++
188 lines
4.3 KiB
C++
/*
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* wiiuse
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*
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* Written By:
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* Michael Laforest < para >
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* Email: < thepara (--AT--) g m a i l [--DOT--] com >
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*
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* Copyright 2006-2007
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*
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* This file is part of wiiuse.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* $Header$
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*
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*/
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/**
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* @file
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* @brief Wii Fit Balance Board device.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#ifdef WIN32
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#include <Winsock2.h>
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#endif
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#include "definitions.h"
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#include "wiiuse_internal.h"
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#include "dynamics.h"
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#include "events.h"
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#include "wiiboard.h"
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static short big_to_lil(unsigned short num)
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{
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short ret = num;
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char *bret = (char*)&ret;
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char tmp = bret[1];
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bret[1] = bret[0];
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bret[0] = tmp;
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return ret;
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}
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/**
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* @brief Handle the handshake data from the guitar.
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*
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* @param cc A pointer to a classic_ctrl_t structure.
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* @param data The data read in from the device.
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* @param len The length of the data block, in bytes.
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*
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* @return Returns 1 if handshake was successful, 0 if not.
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*/
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int wii_board_handshake(struct wiimote_t* wm, struct wii_board_t* wb, byte* data, unsigned short len) {
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int i;
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short* handshake_short;
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/* decrypt data */
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printf("DECRYPTED DATA WIIBOARD\n");
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for (i = 0; i < len; i++)
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{
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if(i%16==0)
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{
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if(i!=0)
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printf("\n");
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printf("%X: ",0x4a40000+32+i);
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}
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printf("%02X ", data[i]);
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}
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printf("\n");
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handshake_short = (short*)data;
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wb->ctr[0] = big_to_lil(handshake_short[2]);
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wb->cbr[0] = big_to_lil(handshake_short[3]);
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wb->ctl[0] = big_to_lil(handshake_short[4]);
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wb->cbl[0] = big_to_lil(handshake_short[5]);
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wb->ctr[1] = big_to_lil(handshake_short[6]);
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wb->cbr[1] = big_to_lil(handshake_short[7]);
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wb->ctl[1] = big_to_lil(handshake_short[8]);
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wb->cbl[1] = big_to_lil(handshake_short[9]);
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wb->ctr[2] = big_to_lil(handshake_short[10]);
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wb->cbr[2] = big_to_lil(handshake_short[11]);
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wb->ctl[2] = big_to_lil(handshake_short[12]);
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wb->cbl[2] = big_to_lil(handshake_short[13]);
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/* handshake done */
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wm->exp.type = EXP_WII_BOARD;
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#ifdef WIN32
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wm->timeout = WIIMOTE_DEFAULT_TIMEOUT;
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#endif
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return 1;
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}
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/**
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* @brief The wii board disconnected.
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*
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* @param cc A pointer to a wii_board_t structure.
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*/
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void wii_board_disconnected(struct wii_board_t* wb) {
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memset(wb, 0, sizeof(struct wii_board_t));
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}
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/**
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* @brief Handle guitar event.
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*
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* @param cc A pointer to a classic_ctrl_t structure.
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* @param msg The message specified in the event packet.
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*/
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void wii_board_event(struct wii_board_t* wb, byte* msg) {
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short *shmsg = (short*)(msg);
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wb->rtr = big_to_lil(shmsg[0]);
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if(wb->rtr<0) wb->rtr = 0;
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wb->rbr = big_to_lil(shmsg[1]);
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if(wb->rbr<0) wb->rbr = 0;
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wb->rtl = big_to_lil(shmsg[2]);
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if(wb->rtl<0) wb->rtl = 0;
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wb->rbl = big_to_lil(shmsg[3]);
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if(wb->rbl<0) wb->rbl = 0;
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/*
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Interpolate values
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Calculations borrowed from wiili.org - No names to mention sadly :( http://www.wiili.org/index.php/Wii_Balance_Board_PC_Drivers page however!
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*/
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if(wb->rtr<wb->ctr[1])
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{
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wb->tr = 68*(wb->rtr-wb->ctr[0])/(wb->ctr[1]-wb->ctr[0]);
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}
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else if(wb->rtr >= wb->ctr[1])
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{
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wb->tr = 68*(wb->rtr-wb->ctr[1])/(wb->ctr[2]-wb->ctr[1]) + 68;
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}
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if(wb->rtl<wb->ctl[1])
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{
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wb->tl = 68*(wb->rtl-wb->ctl[0])/(wb->ctl[1]-wb->ctl[0]);
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}
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else if(wb->rtl >= wb->ctl[1])
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{
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wb->tl = 68*(wb->rtl-wb->ctl[1])/(wb->ctl[2]-wb->ctl[1]) + 68;
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}
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if(wb->rbr<wb->cbr[1])
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{
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wb->br = 68*(wb->rbr-wb->cbr[0])/(wb->cbr[1]-wb->cbr[0]);
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}
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else if(wb->rbr >= wb->cbr[1])
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{
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wb->br = 68*(wb->rbr-wb->cbr[1])/(wb->cbr[2]-wb->cbr[1]) + 68;
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}
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if(wb->rbl<wb->cbl[1])
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{
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wb->bl = 68*(wb->rbl-wb->cbl[0])/(wb->cbl[1]-wb->cbl[0]);
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}
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else if(wb->rbl >= wb->cbl[1])
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{
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wb->bl = 68*(wb->rbl-wb->cbl[1])/(wb->cbl[2]-wb->cbl[1]) + 68;
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}
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}
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void wiiuse_set_wii_board_calib(struct wiimote_t *wm)
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{
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}
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