| 1 | /* |
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| 2 | The zlib/libpng License |
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| 3 | |
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| 4 | Copyright (c) 2005-2007 Phillip Castaneda (pjcast -- www.wreckedgames.com) |
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| 5 | |
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| 6 | This software is provided 'as-is', without any express or implied warranty. In no event will |
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| 7 | the authors be held liable for any damages arising from the use of this software. |
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| 8 | |
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| 9 | Permission is granted to anyone to use this software for any purpose, including commercial |
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| 10 | applications, and to alter it and redistribute it freely, subject to the following |
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| 11 | restrictions: |
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| 12 | |
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| 13 | 1. The origin of this software must not be misrepresented; you must not claim that |
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| 14 | you wrote the original software. If you use this software in a product, |
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| 15 | an acknowledgment in the product documentation would be appreciated but is |
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| 16 | not required. |
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| 17 | |
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| 18 | 2. Altered source versions must be plainly marked as such, and must not be |
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| 19 | misrepresented as being the original software. |
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| 20 | |
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| 21 | 3. This notice may not be removed or altered from any source distribution. |
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| 22 | */ |
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| 23 | #include "linux/LinuxForceFeedback.h" |
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| 24 | #include "OISException.h" |
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| 25 | |
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| 26 | #include <cstdlib> |
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| 27 | #include <errno.h> |
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| 28 | #include <memory.h> |
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| 29 | #include <unistd.h> |
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| 30 | |
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| 31 | using namespace OIS; |
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| 32 | |
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| 33 | // 0 = No trace; 1 = Important traces; 2 = Debug traces |
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| 34 | #define OIS_LINUX_JOYFF_DEBUG 1 |
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| 35 | |
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| 36 | #ifdef OIS_LINUX_JOYFF_DEBUG |
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| 37 | # include <iostream> |
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| 38 | using namespace std; |
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| 39 | #endif |
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| 40 | |
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| 41 | //--------------------------------------------------------------// |
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| 42 | LinuxForceFeedback::LinuxForceFeedback(int deviceID) : |
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| 43 | ForceFeedback(), mJoyStick(deviceID) |
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| 44 | { |
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| 45 | } |
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| 46 | |
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| 47 | //--------------------------------------------------------------// |
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| 48 | LinuxForceFeedback::~LinuxForceFeedback() |
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| 49 | { |
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| 50 | // Unload all effects. |
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| 51 | for(EffectList::iterator i = mEffectList.begin(); i != mEffectList.end(); ++i ) |
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| 52 | { |
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| 53 | struct ff_effect *linEffect = i->second; |
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| 54 | if( linEffect ) |
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| 55 | _unload(linEffect->id); |
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| 56 | } |
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| 57 | |
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| 58 | mEffectList.clear(); |
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| 59 | } |
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| 60 | |
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| 61 | //--------------------------------------------------------------// |
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| 62 | unsigned short LinuxForceFeedback::getFFMemoryLoad() |
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| 63 | { |
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| 64 | int nEffects = -1; |
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| 65 | if (ioctl(mJoyStick, EVIOCGEFFECTS, &nEffects) == -1) |
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| 66 | OIS_EXCEPT(E_General, "Unknown error reading max number of uploaded effects."); |
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| 67 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 68 | cout << "LinuxForceFeedback("<< mJoyStick |
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| 69 | << ") : Read device max number of uploaded effects : " << nEffects << endl; |
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| 70 | #endif |
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| 71 | |
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| 72 | return (unsigned short int)(nEffects > 0 ? 100.0*mEffectList.size()/nEffects : 100); |
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| 73 | } |
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| 74 | |
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| 75 | //--------------------------------------------------------------// |
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| 76 | void LinuxForceFeedback::setMasterGain(float value) |
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| 77 | { |
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| 78 | if (!mSetGainSupport) |
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| 79 | { |
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| 80 | #if (OIS_LINUX_JOYFF_DEBUG > 0) |
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| 81 | cout << "LinuxForceFeedback("<< mJoyStick << ") : Setting master gain " |
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| 82 | << "is not supported by the device" << endl; |
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| 83 | #endif |
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| 84 | return; |
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| 85 | } |
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| 86 | |
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| 87 | struct input_event event; |
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| 88 | |
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| 89 | memset(&event, 0, sizeof(event)); |
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| 90 | event.type = EV_FF; |
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| 91 | event.code = FF_GAIN; |
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| 92 | if (value < 0.0) |
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| 93 | value = 0.0; |
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| 94 | else if (value > 1.0) |
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| 95 | value = 1.0; |
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| 96 | event.value = (__s32)(value * 0xFFFFUL); |
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| 97 | |
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| 98 | #if (OIS_LINUX_JOYFF_DEBUG > 0) |
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| 99 | cout << "LinuxForceFeedback("<< mJoyStick << ") : Setting master gain to " |
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| 100 | << value << " => " << event.value << endl; |
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| 101 | #endif |
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| 102 | |
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| 103 | if (write(mJoyStick, &event, sizeof(event)) != sizeof(event)) { |
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| 104 | OIS_EXCEPT(E_General, "Unknown error changing master gain."); |
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| 105 | } |
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| 106 | } |
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| 107 | |
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| 108 | //--------------------------------------------------------------// |
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| 109 | void LinuxForceFeedback::setAutoCenterMode(bool enabled) |
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| 110 | { |
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| 111 | if (!mSetAutoCenterSupport) |
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| 112 | { |
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| 113 | #if (OIS_LINUX_JOYFF_DEBUG > 0) |
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| 114 | cout << "LinuxForceFeedback("<< mJoyStick << ") : Setting auto-center mode " |
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| 115 | << "is not supported by the device" << endl; |
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| 116 | #endif |
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| 117 | return; |
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| 118 | } |
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| 119 | |
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| 120 | struct input_event event; |
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| 121 | |
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| 122 | memset(&event, 0, sizeof(event)); |
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| 123 | event.type = EV_FF; |
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| 124 | event.code = FF_AUTOCENTER; |
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| 125 | event.value = (__s32)(enabled*0xFFFFFFFFUL); |
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| 126 | |
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| 127 | #if (OIS_LINUX_JOYFF_DEBUG > 0) |
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| 128 | cout << "LinuxForceFeedback("<< mJoyStick << ") : Toggling auto-center to " |
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| 129 | << enabled << " => 0x" << hex << event.value << dec << endl; |
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| 130 | #endif |
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| 131 | |
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| 132 | if (write(mJoyStick, &event, sizeof(event)) != sizeof(event)) { |
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| 133 | OIS_EXCEPT(E_General, "Unknown error toggling auto-center."); |
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| 134 | } |
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| 135 | } |
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| 136 | |
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| 137 | //--------------------------------------------------------------// |
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| 138 | void LinuxForceFeedback::upload( const Effect* effect ) |
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| 139 | { |
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| 140 | switch( effect->force ) |
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| 141 | { |
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| 142 | case OIS::Effect::ConstantForce: |
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| 143 | _updateConstantEffect(effect); |
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| 144 | break; |
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| 145 | case OIS::Effect::ConditionalForce: |
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| 146 | _updateConditionalEffect(effect); |
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| 147 | break; |
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| 148 | case OIS::Effect::PeriodicForce: |
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| 149 | _updatePeriodicEffect(effect); |
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| 150 | break; |
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| 151 | case OIS::Effect::RampForce: |
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| 152 | _updateRampEffect(effect); |
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| 153 | break; |
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| 154 | case OIS::Effect::CustomForce: |
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| 155 | //_updateCustomEffect(effect); |
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| 156 | //break; |
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| 157 | default: |
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| 158 | OIS_EXCEPT(E_NotImplemented, "Requested force not implemented yet, sorry!"); |
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| 159 | break; |
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| 160 | } |
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| 161 | } |
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| 162 | |
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| 163 | //--------------------------------------------------------------// |
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| 164 | void LinuxForceFeedback::modify( const Effect* effect ) |
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| 165 | { |
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| 166 | upload(effect); |
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| 167 | } |
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| 168 | |
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| 169 | //--------------------------------------------------------------// |
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| 170 | void LinuxForceFeedback::remove( const Effect* effect ) |
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| 171 | { |
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| 172 | //Get the effect - if it exists |
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| 173 | EffectList::iterator i = mEffectList.find(effect->_handle); |
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| 174 | if( i != mEffectList.end() ) |
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| 175 | { |
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| 176 | struct ff_effect *linEffect = i->second; |
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| 177 | if( linEffect ) |
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| 178 | { |
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| 179 | _stop(effect->_handle); |
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| 180 | |
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| 181 | _unload(effect->_handle); |
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| 182 | |
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| 183 | free(linEffect); |
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| 184 | |
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| 185 | mEffectList.erase(i); |
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| 186 | } |
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| 187 | else |
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| 188 | mEffectList.erase(i); |
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| 189 | } |
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| 190 | } |
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| 191 | |
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| 192 | //--------------------------------------------------------------// |
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| 193 | // To Signed16/Unsigned15 safe conversions |
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| 194 | #define MaxUnsigned15Value 0x7FFF |
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| 195 | #define toUnsigned15(value) \ |
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| 196 | (__u16)((value) < 0 ? 0 : ((value) > MaxUnsigned15Value ? MaxUnsigned15Value : (value))) |
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| 197 | |
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| 198 | #define MaxSigned16Value 0x7FFF |
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| 199 | #define MinSigned16Value -0x7FFF |
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| 200 | #define toSigned16(value) \ |
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| 201 | (__s16)((value) < MinSigned16Value ? MinSigned16Value : ((value) > MaxSigned16Value ? MaxSigned16Value : (value))) |
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| 202 | |
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| 203 | // OIS to Linux duration |
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| 204 | #define LinuxInfiniteDuration 0xFFFF |
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| 205 | #define OISDurationUnitMS 1000 // OIS duration unit (microseconds), expressed in milliseconds (theLinux duration unit) |
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| 206 | |
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| 207 | // linux/input.h : All duration values are expressed in ms. Values above 32767 ms (0x7fff) |
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| 208 | // should not be used and have unspecified results. |
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| 209 | #define LinuxDuration(oisDuration) ((oisDuration) == Effect::OIS_INFINITE ? LinuxInfiniteDuration \ |
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| 210 | : toUnsigned15((oisDuration)/OISDurationUnitMS)) |
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| 211 | |
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| 212 | |
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| 213 | // OIS to Linux levels |
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| 214 | #define OISMaxLevel 10000 |
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| 215 | #define LinuxMaxLevel 0x7FFF |
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| 216 | |
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| 217 | // linux/input.h : Valid range for the attack and fade levels is 0x0000 - 0x7fff |
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| 218 | #define LinuxPositiveLevel(oisLevel) toUnsigned15(LinuxMaxLevel*(long)(oisLevel)/OISMaxLevel) |
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| 219 | |
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| 220 | #define LinuxSignedLevel(oisLevel) toSigned16(LinuxMaxLevel*(long)(oisLevel)/OISMaxLevel) |
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| 221 | |
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| 222 | |
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| 223 | //--------------------------------------------------------------// |
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| 224 | void LinuxForceFeedback::_setCommonProperties(struct ff_effect *event, |
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| 225 | struct ff_envelope *ffenvelope, |
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| 226 | const Effect* effect, const Envelope *envelope ) |
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| 227 | { |
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| 228 | memset(event, 0, sizeof(struct ff_effect)); |
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| 229 | |
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| 230 | if (envelope && ffenvelope && envelope->isUsed()) { |
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| 231 | ffenvelope->attack_length = LinuxDuration(envelope->attackLength); |
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| 232 | ffenvelope->attack_level = LinuxPositiveLevel(envelope->attackLevel); |
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| 233 | ffenvelope->fade_length = LinuxDuration(envelope->fadeLength); |
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| 234 | ffenvelope->fade_level = LinuxPositiveLevel(envelope->fadeLevel); |
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| 235 | } |
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| 236 | |
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| 237 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 238 | cout << endl; |
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| 239 | if (envelope && ffenvelope) |
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| 240 | { |
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| 241 | cout << " Enveloppe :" << endl |
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| 242 | << " AttackLen : " << envelope->attackLength |
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| 243 | << " => " << ffenvelope->attack_length << endl |
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| 244 | << " AttackLvl : " << envelope->attackLevel |
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| 245 | << " => " << ffenvelope->attack_level << endl |
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| 246 | << " FadeLen : " << envelope->fadeLength |
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| 247 | << " => " << ffenvelope->fade_length << endl |
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| 248 | << " FadeLvl : " << envelope->fadeLevel |
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| 249 | << " => " << ffenvelope->fade_level << endl; |
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| 250 | } |
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| 251 | #endif |
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| 252 | |
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| 253 | event->direction = (__u16)(1 + (effect->direction*45.0+135.0)*0xFFFFUL/360.0); |
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| 254 | |
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| 255 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 256 | cout << " Direction : " << Effect::getDirectionName(effect->direction) |
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| 257 | << " => 0x" << hex << event->direction << dec << endl; |
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| 258 | #endif |
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| 259 | |
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| 260 | // TODO trigger_button 0 vs. -1 |
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| 261 | event->trigger.button = effect->trigger_button; // < 0 ? 0 : effect->trigger_button; |
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| 262 | event->trigger.interval = LinuxDuration(effect->trigger_interval); |
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| 263 | |
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| 264 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 265 | cout << " Trigger :" << endl |
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| 266 | << " Button : " << effect->trigger_button |
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| 267 | << " => " << event->trigger.button << endl |
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| 268 | << " Interval : " << effect->trigger_interval |
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| 269 | << " => " << event->trigger.interval << endl; |
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| 270 | #endif |
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| 271 | |
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| 272 | event->replay.length = LinuxDuration(effect->replay_length); |
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| 273 | event->replay.delay = LinuxDuration(effect->replay_delay); |
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| 274 | |
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| 275 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 276 | cout << " Replay :" << endl |
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| 277 | << " Length : " << effect->replay_length |
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| 278 | << " => " << event->replay.length << endl |
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| 279 | << " Delay : " << effect->replay_delay |
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| 280 | << " => " << event->replay.delay << endl; |
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| 281 | #endif |
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| 282 | } |
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| 283 | |
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| 284 | //--------------------------------------------------------------// |
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| 285 | void LinuxForceFeedback::_updateConstantEffect( const Effect* eff ) |
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| 286 | { |
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| 287 | struct ff_effect event; |
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| 288 | |
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| 289 | ConstantEffect *effect = static_cast<ConstantEffect*>(eff->getForceEffect()); |
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| 290 | |
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| 291 | _setCommonProperties(&event, &event.u.constant.envelope, eff, &effect->envelope); |
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| 292 | |
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| 293 | event.type = FF_CONSTANT; |
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| 294 | event.id = -1; |
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| 295 | |
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| 296 | event.u.constant.level = LinuxSignedLevel(effect->level); |
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| 297 | |
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| 298 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 299 | cout << " Level : " << effect->level |
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| 300 | << " => " << event.u.constant.level << endl; |
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| 301 | #endif |
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| 302 | |
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| 303 | _upload(&event, eff); |
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| 304 | } |
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| 305 | |
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| 306 | //--------------------------------------------------------------// |
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| 307 | void LinuxForceFeedback::_updateRampEffect( const Effect* eff ) |
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| 308 | { |
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| 309 | struct ff_effect event; |
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| 310 | |
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| 311 | RampEffect *effect = static_cast<RampEffect*>(eff->getForceEffect()); |
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| 312 | |
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| 313 | _setCommonProperties(&event, &event.u.constant.envelope, eff, &effect->envelope); |
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| 314 | |
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| 315 | event.type = FF_RAMP; |
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| 316 | event.id = -1; |
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| 317 | |
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| 318 | event.u.ramp.start_level = LinuxSignedLevel(effect->startLevel); |
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| 319 | event.u.ramp.end_level = LinuxSignedLevel(effect->endLevel); |
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| 320 | |
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| 321 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 322 | cout << " StartLevel : " << effect->startLevel |
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| 323 | << " => " << event.u.ramp.start_level << endl |
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| 324 | << " EndLevel : " << effect->endLevel |
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| 325 | << " => " << event.u.ramp.end_level << endl; |
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| 326 | #endif |
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| 327 | |
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| 328 | _upload(&event, eff); |
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| 329 | } |
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| 330 | |
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| 331 | //--------------------------------------------------------------// |
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| 332 | void LinuxForceFeedback::_updatePeriodicEffect( const Effect* eff ) |
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| 333 | { |
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| 334 | struct ff_effect event; |
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| 335 | |
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| 336 | PeriodicEffect *effect = static_cast<PeriodicEffect*>(eff->getForceEffect()); |
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| 337 | |
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| 338 | _setCommonProperties(&event, &event.u.periodic.envelope, eff, &effect->envelope); |
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| 339 | |
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| 340 | event.type = FF_PERIODIC; |
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| 341 | event.id = -1; |
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| 342 | |
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| 343 | switch( eff->type ) |
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| 344 | { |
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| 345 | case OIS::Effect::Square: |
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| 346 | event.u.periodic.waveform = FF_SQUARE; |
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| 347 | break; |
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| 348 | case OIS::Effect::Triangle: |
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| 349 | event.u.periodic.waveform = FF_TRIANGLE; |
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| 350 | break; |
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| 351 | case OIS::Effect::Sine: |
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| 352 | event.u.periodic.waveform = FF_SINE; |
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| 353 | break; |
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| 354 | case OIS::Effect::SawToothUp: |
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| 355 | event.u.periodic.waveform = FF_SAW_UP; |
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| 356 | break; |
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| 357 | case OIS::Effect::SawToothDown: |
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| 358 | event.u.periodic.waveform = FF_SAW_DOWN; |
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| 359 | break; |
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| 360 | // Note: No support for Custom periodic force effect for the moment |
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| 361 | //case OIS::Effect::Custom: |
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| 362 | //event.u.periodic.waveform = FF_CUSTOM; |
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| 363 | //break; |
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| 364 | default: |
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| 365 | OIS_EXCEPT(E_General, "No such available effect for Periodic force!"); |
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| 366 | break; |
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| 367 | } |
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| 368 | |
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| 369 | event.u.periodic.period = LinuxDuration(effect->period); |
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| 370 | event.u.periodic.magnitude = LinuxPositiveLevel(effect->magnitude); |
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| 371 | event.u.periodic.offset = LinuxPositiveLevel(effect->offset); |
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| 372 | event.u.periodic.phase = (__u16)(effect->phase*event.u.periodic.period/36000.0); // ????? |
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| 373 | |
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| 374 | // Note: No support for Custom periodic force effect for the moment |
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| 375 | event.u.periodic.custom_len = 0; |
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| 376 | event.u.periodic.custom_data = 0; |
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| 377 | |
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| 378 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 379 | cout << " Magnitude : " << effect->magnitude |
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| 380 | << " => " << event.u.periodic.magnitude << endl |
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| 381 | << " Period : " << effect->period |
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| 382 | << " => " << event.u.periodic.period << endl |
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| 383 | << " Offset : " << effect->offset |
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| 384 | << " => " << event.u.periodic.offset << endl |
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| 385 | << " Phase : " << effect->phase |
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| 386 | << " => " << event.u.periodic.phase << endl; |
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| 387 | #endif |
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| 388 | |
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| 389 | _upload(&event, eff); |
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| 390 | } |
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| 391 | |
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| 392 | //--------------------------------------------------------------// |
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| 393 | void LinuxForceFeedback::_updateConditionalEffect( const Effect* eff ) |
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| 394 | { |
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| 395 | struct ff_effect event; |
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| 396 | |
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| 397 | ConditionalEffect *effect = static_cast<ConditionalEffect*>(eff->getForceEffect()); |
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| 398 | |
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| 399 | _setCommonProperties(&event, NULL, eff, NULL); |
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| 400 | |
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| 401 | switch( eff->type ) |
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| 402 | { |
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| 403 | case OIS::Effect::Friction: |
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| 404 | event.type = FF_FRICTION; |
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| 405 | break; |
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| 406 | case OIS::Effect::Damper: |
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| 407 | event.type = FF_DAMPER; |
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| 408 | break; |
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| 409 | case OIS::Effect::Inertia: |
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| 410 | event.type = FF_INERTIA; |
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| 411 | break; |
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| 412 | case OIS::Effect::Spring: |
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| 413 | event.type = FF_SPRING; |
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| 414 | break; |
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| 415 | default: |
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| 416 | OIS_EXCEPT(E_General, "No such available effect for Conditional force!"); |
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| 417 | break; |
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| 418 | } |
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| 419 | |
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| 420 | event.id = -1; |
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| 421 | |
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| 422 | event.u.condition[0].right_saturation = LinuxSignedLevel(effect->rightSaturation); |
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| 423 | event.u.condition[0].left_saturation = LinuxSignedLevel(effect->leftSaturation); |
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| 424 | event.u.condition[0].right_coeff = LinuxSignedLevel(effect->rightCoeff); |
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| 425 | event.u.condition[0].left_coeff = LinuxSignedLevel(effect->leftCoeff); |
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| 426 | event.u.condition[0].deadband = LinuxPositiveLevel(effect->deadband);// Unit ?? |
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| 427 | event.u.condition[0].center = LinuxSignedLevel(effect->center); // Unit ?? TODO ? |
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| 428 | |
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| 429 | // TODO support for second condition |
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| 430 | event.u.condition[1] = event.u.condition[0]; |
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| 431 | |
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| 432 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 433 | cout << " Condition[0] : " << endl |
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| 434 | << " RightSaturation : " << effect->rightSaturation |
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| 435 | << " => " << event.u.condition[0].right_saturation << endl |
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| 436 | << " LeftSaturation : " << effect->leftSaturation |
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| 437 | << " => " << event.u.condition[0]. left_saturation << endl |
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| 438 | << " RightCoefficient : " << effect->rightCoeff |
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| 439 | << " => " << event.u.condition[0].right_coeff << endl |
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| 440 | << " LeftCoefficient : " << effect->leftCoeff |
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| 441 | << " => " << event.u.condition[0].left_coeff << endl |
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| 442 | << " DeadBand : " << effect->deadband |
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| 443 | << " => " << event.u.condition[0].deadband << endl |
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| 444 | << " Center : " << effect->center |
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| 445 | << " => " << event.u.condition[0].center << endl; |
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| 446 | cout << " Condition[1] : Not implemented" << endl; |
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| 447 | #endif |
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| 448 | _upload(&event, eff); |
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| 449 | } |
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| 450 | |
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| 451 | //--------------------------------------------------------------// |
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| 452 | void LinuxForceFeedback::_upload( struct ff_effect* ffeffect, const Effect* effect) |
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| 453 | { |
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| 454 | struct ff_effect *linEffect = 0; |
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| 455 | |
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| 456 | //Get the effect - if it exists |
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| 457 | EffectList::iterator i = mEffectList.find(effect->_handle); |
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| 458 | //It has been created already |
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| 459 | if( i != mEffectList.end() ) |
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| 460 | linEffect = i->second; |
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| 461 | |
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| 462 | if( linEffect == 0 ) |
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| 463 | { |
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| 464 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 465 | cout << endl << "LinuxForceFeedback("<< mJoyStick << ") : Adding new effect : " |
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| 466 | << Effect::getEffectTypeName(effect->type) << endl; |
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| 467 | #endif |
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| 468 | |
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| 469 | //This effect has not yet been created, so create it in the device |
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| 470 | if (ioctl(mJoyStick, EVIOCSFF, ffeffect) == -1) { |
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| 471 | // TODO device full check |
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| 472 | // OIS_EXCEPT(E_DeviceFull, "Remove an effect before adding more!"); |
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| 473 | OIS_EXCEPT(E_General, "Unknown error creating effect (may be the device is full)->.."); |
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| 474 | } |
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| 475 | |
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| 476 | // Save returned effect handle |
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| 477 | effect->_handle = ffeffect->id; |
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| 478 | |
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| 479 | // Save a copy of the uploaded effect for later simple modifications |
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| 480 | linEffect = (struct ff_effect *)calloc(1, sizeof(struct ff_effect)); |
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| 481 | memcpy(linEffect, ffeffect, sizeof(struct ff_effect)); |
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| 482 | |
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| 483 | mEffectList[effect->_handle] = linEffect; |
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| 484 | |
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| 485 | // Start playing the effect. |
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| 486 | _start(effect->_handle); |
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| 487 | } |
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| 488 | else |
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| 489 | { |
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| 490 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 491 | cout << endl << "LinuxForceFeedback("<< mJoyStick << ") : Replacing effect : " |
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| 492 | << Effect::getEffectTypeName(effect->type) << endl; |
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| 493 | #endif |
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| 494 | |
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| 495 | // Keep same id/handle, as this is just an update in the device. |
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| 496 | ffeffect->id = effect->_handle; |
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| 497 | |
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| 498 | // Update effect in the device. |
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| 499 | if (ioctl(mJoyStick, EVIOCSFF, ffeffect) == -1) { |
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| 500 | OIS_EXCEPT(E_General, "Unknown error updating an effect->.."); |
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| 501 | } |
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| 502 | |
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| 503 | // Update local linEffect for next time. |
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| 504 | memcpy(linEffect, ffeffect, sizeof(struct ff_effect)); |
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| 505 | } |
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| 506 | |
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| 507 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 508 | cout << "LinuxForceFeedback("<< mJoyStick |
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| 509 | << ") : Effect handle : " << effect->_handle << endl; |
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| 510 | #endif |
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| 511 | } |
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| 512 | |
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| 513 | //--------------------------------------------------------------// |
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| 514 | void LinuxForceFeedback::_stop( int handle) { |
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| 515 | struct input_event stop; |
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| 516 | |
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| 517 | stop.type = EV_FF; |
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| 518 | stop.code = handle; |
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| 519 | stop.value = 0; |
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| 520 | |
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| 521 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 522 | cout << endl << "LinuxForceFeedback("<< mJoyStick |
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| 523 | << ") : Stopping effect with handle " << handle << endl; |
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| 524 | #endif |
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| 525 | |
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| 526 | if (write(mJoyStick, &stop, sizeof(stop)) != sizeof(stop)) { |
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| 527 | OIS_EXCEPT(E_General, "Unknown error stopping effect->.."); |
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| 528 | } |
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| 529 | } |
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| 530 | |
|---|
| 531 | //--------------------------------------------------------------// |
|---|
| 532 | void LinuxForceFeedback::_start( int handle) { |
|---|
| 533 | struct input_event play; |
|---|
| 534 | |
|---|
| 535 | play.type = EV_FF; |
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| 536 | play.code = handle; |
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| 537 | play.value = 1; // Play once. |
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| 538 | |
|---|
| 539 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
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| 540 | cout << endl << "LinuxForceFeedback("<< mJoyStick |
|---|
| 541 | << ") : Starting effect with handle " << handle << endl; |
|---|
| 542 | #endif |
|---|
| 543 | |
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| 544 | if (write(mJoyStick, &play, sizeof(play)) != sizeof(play)) { |
|---|
| 545 | OIS_EXCEPT(E_General, "Unknown error playing effect->.."); |
|---|
| 546 | } |
|---|
| 547 | } |
|---|
| 548 | |
|---|
| 549 | //--------------------------------------------------------------// |
|---|
| 550 | void LinuxForceFeedback::_unload( int handle) |
|---|
| 551 | { |
|---|
| 552 | #if (OIS_LINUX_JOYFF_DEBUG > 1) |
|---|
| 553 | cout << endl << "LinuxForceFeedback("<< mJoyStick |
|---|
| 554 | << ") : Removing effect with handle " << handle << endl; |
|---|
| 555 | #endif |
|---|
| 556 | |
|---|
| 557 | if (ioctl(mJoyStick, EVIOCRMFF, handle) == -1) { |
|---|
| 558 | OIS_EXCEPT(E_General, "Unknown error removing effect->.."); |
|---|
| 559 | } |
|---|
| 560 | } |
|---|