1 | /* $Id: joyos2.cpp,v 1.3 1999-08-19 18:46:04 phaller Exp $ */
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2 | /*
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3 | * OS/2 Joystick apis
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4 | *
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5 | * Copyright 1999 Przemysaw Dobrowolski <dobrawka@asua.org.pl>
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6 | *
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7 | *
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8 | * Project Odin Software License can be found in LICENSE.TXT
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9 | *
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10 | */
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11 |
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12 |
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13 | /****************************************************************************
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14 | * Includes *
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15 | ****************************************************************************/
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16 |
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17 | #define INCL_BASE
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18 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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19 | #include <misc.h>
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20 | #include "joyos2.h"
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21 |
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22 |
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23 | #define GAMEPDDNAME "GAME$"
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24 |
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25 | #define IOCTL_JOYSTICK 0x80 // IOCTL's
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26 |
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27 | // IOCTL wraper functions
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28 | #define GAME_GET_PARMS 0x02
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29 | #define GAME_GET_CALIB 0x04
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30 | #define GAME_SET_CALIB 0x05
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31 | #define GAME_GET_STATUS 0x10
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32 |
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33 | #define MAXJOYDRIVERS 2 // GAME$ knows only 2 joysticks
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34 |
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35 | //******************************************************************************
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36 | //******************************************************************************
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37 | LONG JoyOpen(HFILE *phGame)
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38 | {
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39 | ULONG action;
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40 | APIRET rc;
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41 |
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42 | if (phGame==NULL)
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43 | return -1;
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44 |
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45 | rc = DosOpen( GAMEPDDNAME,
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46 | phGame,
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47 | &action,
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48 | 0,
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49 | FILE_READONLY,
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50 | FILE_OPEN,
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51 | OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE,
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52 | NULL );
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53 |
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54 | return (rc);
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55 | }
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56 | //******************************************************************************
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57 | //******************************************************************************
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58 | LONG JoyGetParams(HFILE hGame, GAME_PARM_STRUCT *pGameParams)
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59 | {
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60 | ULONG dataLen;
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61 | APIRET rc;
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62 |
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63 | dataLen = sizeof( *pGameParams );
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64 | rc = DosDevIOCtl( hGame,
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65 | IOCTL_JOYSTICK,
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66 | GAME_GET_PARMS, // 0x80, 0x02
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67 | NULL,
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68 | 0,
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69 | NULL,
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70 | pGameParams,
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71 | dataLen,
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72 | &dataLen);
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73 | return (rc);
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74 | }
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75 |
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76 | //******************************************************************************
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77 | //******************************************************************************
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78 | // For each stick:
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79 | // tell user to centre joystick and press button
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80 | // call get status with wait
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81 | // tell user to move to upper left and press button
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82 | // call get status with wait
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83 | // tell user to move to lower right and press button
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84 | // call get status with wait
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85 | // Then call set calibration IOCTL with these values
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86 | LONG JoyCalibrate(HFILE hGame, GAME_CALIB_STRUCT gameCalib)
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87 | {
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88 | ULONG parmLen;
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89 | APIRET rc;
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90 |
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91 | parmLen = sizeof( gameCalib );
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92 | rc = DosDevIOCtl( hGame,
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93 | IOCTL_JOYSTICK,
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94 | GAME_SET_CALIB, // 0x80, 0x05
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95 | &gameCalib,
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96 | parmLen,
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97 | &parmLen,
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98 | NULL,
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99 | 0,
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100 | NULL );
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101 | return (rc);
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102 | }
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103 |
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104 | //******************************************************************************
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105 | //******************************************************************************
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106 | LONG JoyGetStatus( HFILE hGame, GAME_STATUS_STRUCT *pGameStatus )
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107 | {
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108 | ULONG dataLen;
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109 | APIRET rc;
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110 |
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111 | dataLen = sizeof( *pGameStatus );
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112 | rc = DosDevIOCtl( hGame,
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113 | IOCTL_JOYSTICK,
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114 | GAME_GET_STATUS, // 0x80, 0x10
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115 | NULL,
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116 | 0,
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117 | NULL,
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118 | pGameStatus,
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119 | dataLen,
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120 | &dataLen );
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121 | return (rc);
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122 | }
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123 | //******************************************************************************
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124 | //******************************************************************************
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125 | LONG JoyClose( HFILE hGame )
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126 | {
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127 | APIRET rc;
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128 |
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129 | rc = DosClose( hGame );
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130 |
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131 | return (rc);
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132 | }
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133 | //******************************************************************************
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134 | //******************************************************************************
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135 | LONG JoyGetCalValues( HFILE hGame, GAME_CALIB_STRUCT *pGameCalib )
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136 | {
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137 | ULONG dataLen;
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138 | APIRET rc;
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139 |
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140 | dataLen = sizeof( *pGameCalib );
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141 | rc = DosDevIOCtl( hGame,
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142 | IOCTL_JOYSTICK,
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143 | GAME_GET_CALIB, // 0x80, 0x04
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144 | NULL,
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145 | 0,
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146 | NULL,
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147 | pGameCalib,
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148 | dataLen,
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149 | &dataLen);
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150 |
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151 | return (rc);
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152 | }
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153 | //******************************************************************************
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154 | //******************************************************************************
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155 | LONG JoyInstalled(USHORT wID)
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156 | {
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157 | BOOL flReturn=1; // MMSYSERR_NODRIVER
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158 | HFILE hJoy;
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159 | APIRET rc;
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160 | GAME_PARM_STRUCT GameParams;
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161 |
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162 |
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163 | rc=JoyOpen(&hJoy);
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164 | if ( rc==0 )
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165 | {
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166 | JoyGetParams(hJoy,&GameParams);
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167 | JoyClose(hJoy);
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168 |
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169 | if (( wID == 0 ) && (GameParams.useA > 0))
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170 | flReturn=0; //
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171 | else
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172 | if (( wID == 1 ) && (GameParams.useB > 0))
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173 | flReturn=0;
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174 | else
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175 | flReturn=167; // JOYERR_UNPLUGGED
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176 | }
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177 | return (flReturn);
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178 | }
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179 |
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180 |
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